Radio Selection Using Interference Database for Multi-Radio Devices
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Solution Overview
Problem
Wireless communication devices face challenges in selecting the optimal radio for communication to achieve good performance, especially due to interference between multiple radios, which affects the quality of service and efficiency of network operations.
Innovation Solution
The device employs a connection manager and coexistence manager to identify available radios, obtain interference information, and select the most suitable radio based on profiles, application requirements, and interference conditions, using a converted interference database for efficient radio selection and mitigation of interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radios are used to support different wireless communication networks, then the device can communicate with various networks and applications, but interference between radios degrades communication performance
Solution Approach 1:
The system performs preliminary actions by maintaining an interference database that pre-characterizes interference conditions between different radio pairs before actual communication occurs. This database is built through prior measurements and conversions, allowing the connection manager to make informed radio selection decisions without causing interference during operation.
Solution Approach 2:
The interference database acts as an intermediary mechanism between the multiple radios and the connection manager. It mediates the interference relationships by providing structured information about which radio pairs cause harmful interference, enabling the connection manager to select compatible radio combinations without direct interference control.
2Reliability
If radio selection is based on multiple factors including interference information, profiles, and application requirements, then communication performance is optimized, but the selection process complexity increases
Solution Approach 1:
The radio selection process is segmented into distinct functional components: the connection manager handles high-level decision-making based on application requirements and profiles, while the coexistence manager handles technical aspects like interference database queries and radio pair evaluations. This segmentation divides complexity into manageable modules with clear responsibilities.
Solution Approach 2:
The interference database provides a pre-computed reference model that copies and stores interference characteristics for various radio pairs. Instead of measuring interference in real-time for every possible combination, the system uses this pre-generated copy of interference information to make rapid selection decisions, significantly reducing computational complexity.
3Object-affected harmful factors
If interference information is obtained and used for radio selection, then harmful interference is reduced, but the system requires additional components and processing
Solution Approach 1:
The interference database serves multiple functions: it stores interference characteristics, provides selection criteria, and enables both connection establishment and ongoing optimization. The coexistence manager uses the same database for both initial radio selection and for making adjustments during operation, making the system more efficient despite the added complexity.
Data Source
AI summary
Techniques for supporting communication by a wireless device having a set of radios and supporting a set of applications are described. In an aspect, radio selection may be performed based on interference information and additional information to obtain good performance. In one design, a plurality of radios available for use on the wireless device may be identified. Interference information indicative of interference between the plurality of radios may be obtained, e.g., from an interference database or a converted interference database. Additional information used for radio selection may also be obtained and may include information for communication profiles, communication preferences, application requirements, radio capabilities, etc. At least one radio may be selected for use for communication from among the plurality of radios based on the interference information and the additional information.