Slot-Specific BLER for Adaptive MCS in Wireless Channels
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Solution Overview
Problem
Existing methods for determining the condition of communication channels in telecommunication networks are inadequate as they rely on overall Block Error Rate (BLER) for all time slots, leading to inefficient MCS adaptation and potential overestimation of error rates.
Innovation Solution
Evaluating network conditions on a slot-by-slot basis, determining the condition of each time slot, and adapting the transmission properties, such as Modulation and Coding Scheme (MCS), accordingly based on the specific error rates of each time slot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If overall BLER for all time slots is used to adapt MCS, then the MCS can be determined based on aggregate error rate, but the MCS may not be appropriate for specific time slots and efficiency is reduced
Solution Approach 1:
The patent segments the overall BLER measurement into individual time slot-specific BLER measurements. Instead of using a single aggregate BLER value for all time slots, the system calculates and uses separate BLER values for each time slot when determining MCS. This segmentation allows the MCS to be specifically adapted to the conditions of each time slot, resolving the contradiction between adaptability and efficiency.
2Reliability
If Link Adaptation is used to ensure appropriate MCS, then the MCS can be adjusted based on BLER, but the adjusted MCS may not be appropriate for specific time slots with different data types
Solution Approach 1:
The patent applies local quality by making the MCS determination specific to each time slot's characteristics rather than using a uniform approach. Each time slot's MCS is determined based on its own BLER measurement and data characteristics, allowing the transmission parameters to be locally optimized for each time slot's specific conditions, thereby maintaining both reliability and efficiency.
3Ease of operation
If CQI estimated by UE is used to determine MCS, then the MCS can be determined based on UE feedback, but the CQI may be inaccurate or inappropriate due to changing conditions
Solution Approach 1:
The patent implements a feedback mechanism where the actual transmission results (ACK/NACK) are used to calculate BLER for each time slot, which then feeds back into MCS determination. This closed-loop feedback system allows the system to verify whether the CQI-based MCS determination was accurate and adjust accordingly, improving measurement precision while maintaining ease of operation through automated feedback processing.
Data Source
AI summary
Provided are system, method, and device for evaluating network conditions. According to embodiments, the system may include: a memory storage storing computer-executable instructions; and at least one processor communicatively coupled to the memory storage, wherein the at least one processor may be configured to execute the instructions to: determine a condition of a communication channel during at least one time slot of a plurality of time slots; and adapt a transmission property of data during the at least one time slot based on the condition of the communication channel during a corresponding time slot.