Radio Interface Coordination via Priority-Based Transmission Control
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Solution Overview
Problem
Modern communication devices with multiple radio interfaces face interference issues due to non-cooperative operation of radio interfaces like Bluetooth, WLAN, and GNSS with cellular interfaces, leading to unsatisfactory coexistence and potential link quality drops when transmission is suppressed without control.
Innovation Solution
A method for coordinating transmission and reception activities by associating a priority setting with information intended for transmission, allowing for interruption or delay of transmission based on the priority, using real-time signaling between radio interfaces to manage interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If transmission activities on one radio interface are suppressed to avoid interference with another radio interface, then interference between radio interfaces is reduced, but link quality deteriorates due to uncontrolled dropping of critical uplink information
Solution Approach 1:
The patent segments uplink information into different priority levels (high priority and low priority). Critical information such as control signals and important data are marked as high priority and transmitted regardless of interference conditions, while less critical information is suppressed to avoid interference. This segmentation allows selective transmission that maintains link quality while reducing interference.
Solution Approach 2:
The patent implements dynamic transmission control where the decision to suppress or transmit information depends on real-time conditions. The system dynamically adjusts transmission behavior based on the presence of other radio interface activities, priority levels, and current interference conditions, allowing flexible coordination between multiple radio interfaces.
2Object-affected harmful factors
If pure filtering is used to protect radio links, then interference is reduced, but the solution becomes inadequate for narrow frequency gaps and requires extreme filter requirements
Solution Approach 1:
The patent replaces the physical filtering approach with a logical/control-based solution. Instead of using complex filters to block frequencies, the system uses priority-based transmission control and signaling mechanisms to manage interference. This substitution eliminates the need for extreme filter requirements while achieving interference reduction through intelligent coordination.
3Object-affected harmful factors
If frequency evasion is used for certain use cases, then interference is reduced, but a significant portion of network operator's frequency band becomes unavailable and additional signalling with network side is required
Solution Approach 1:
The patent enables dynamic frequency utilization where the available frequency bands are adaptively allocated based on real-time conditions. The system can dynamically switch between frequency bands and prioritize transmissions based on current interference levels, ensuring maximum frequency band availability while managing interference through intelligent control rather than fixed frequency evasion.
Data Source
AI summary
A technique for coordinating transmission and reception activities of two or more radio interfaces (12, 14) integrated in a communication device (10) is described. A priority setting is associated with information intended for transmission via the first radio interface (12). In a method implementation of the technique, the following steps are performed for the first radio interface (12). First, a signal indicative of an upcoming reception via the second radio interface (14) is received. Then, for an ongoing or scheduled transmission of information via the first radio interface (12), the priority setting associated with the information is determined. In a next step a decision regarding an interruption or a delay of the transmission is performed depending on the priority setting associated with the information.