Multi-SIM Communication Device Timing Collision Resolution
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Solution Overview
Problem
Communication devices with multiple SIMs face conflicts in receiving information due to timing collisions between different radio cells, leading to inefficient data reception and potential disruptions in active connections.
Innovation Solution
A communication device with a transceiver and controller that adjusts communication timings to ensure no frame exceeds a predetermined threshold of activities, minimizing interruptions in data transmission across different radio cells by determining and modifying the number of timings for data communications via a second radio cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication device receives multiple sets of information from different radio cells simultaneously, then the information reception capability is improved, but timing collisions occur causing disruptions in active connections
Solution Approach 1:
The patent dynamically adjusts the timing of data communications on the second radio cell based on the frame structure of the first radio cell. The controller modifies transmission timings to avoid overlapping with paging information reception, system information reception, and random access opportunities, thereby resolving timing collisions while maintaining multi-radio-cell operation
Solution Approach 2:
The patent performs preliminary determination of timing conflicts before executing data communications. The controller identifies potential collisions with paging information, system information, and random access procedures in advance, and pre-adjusts the timing schedule to prevent disruptions to the active connection on the first radio cell
2Reliability
If the device maintains dedicated connection on first radio cell and monitors second radio cell, then communication reliability is improved, but data transfer rate on first radio cell is reduced due to interruptions
Solution Approach 1:
The patent dynamically optimizes the timing of interruptions for second radio cell communications within the frame structure. By concentrating necessary monitoring activities into specific time slots and minimizing the duration and frequency of interruptions, the patent maintains connection reliability while reducing the impact on data transfer rate
Solution Approach 2:
The patent structures monitoring activities on the second radio cell to occur periodically at specific times within the frame structure, rather than continuously. This periodic approach allows the first radio cell connection to operate uninterrupted during data transmission periods, maintaining high data transfer rates while ensuring necessary monitoring occurs
3Loss of information
If the device increases monitoring frequency on second radio cell, then information reception completeness is improved, but timing conflicts with first radio cell increase
Solution Approach 1:
The patent applies different monitoring strategies to different types of information on the second radio cell. Paging information reception, system information reception, and random access opportunities are scheduled at their respective optimal times within the frame structure, rather than using a uniform monitoring approach. This localized optimization reduces overall timing conflicts while ensuring complete reception of all information types
Data Source
AI summary
A communication device is described including a transceiver configured to establish a communication connection via a first radio cell and to carry out data communication via the communication connection according to a frame structure including a plurality of frames, a determiner configured to determine timings for a plurality of data communications via a second radio cell, determine whether, for any frame of the plurality of frames, the number of timings falling within the frame is above a predetermined threshold and determine, if for any frame of the plurality of frames, the number of timings falling within the frame is above the predetermined threshold, change the timings such that for no frame of the plurality of frames the number of timings falling within the frame is above the predetermined threshold and a controller configured to control the transceiver to carry out the data communications via the second radio cell according to the timings.