Parallel Measurement Gap Patterns for Radio Resource Management
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Solution Overview
Problem
Wireless devices operating in multiple operational modes face complexity and inefficiency due to the need to perform multiple radio link monitoring (RLM) procedures simultaneously, leading to increased processing and power consumption, especially when handling both Ultra-Reliable Low Latency Communication (URLLC) and Enhanced Mobile Broadband (eMBB) traffic.
Innovation Solution
Implementing specific conditions and criteria for performing RLM and RRC re-establishment procedures, allowing wireless devices to transition between different RLM states based on predefined quality and reliability thresholds, enabling efficient operation of both URLLC and eMBB modes within overlapping time periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices perform multiple RLM procedures in parallel for multiple operational modes, then the reliability of both URLLC and eMBB services is improved, but the device complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic switching between parallel and sequential RLM procedure execution based on operational mode transitions. When transitioning between URLLC and eMBB modes, the device dynamically adjusts the RLM execution pattern, using parallel processing when both modes are active and sequential processing during mode transitions, thereby optimizing the balance between reliability and complexity
Solution Approach 2:
The patent segments the RLM procedures into separate execution streams for different operational modes. By dividing the monitoring tasks into distinct segments that can be executed sequentially during transitions, the device reduces processing complexity while maintaining comprehensive monitoring coverage for both URLLC and eMBB services
2Reliability
If wireless devices perform multiple RLM procedures in parallel for multiple operational modes, then the monitoring coverage is improved, but the power consumption increases
Solution Approach 1:
The patent implements periodic execution of RLM procedures with different timing characteristics for URLLC and eMBB modes. During parallel operation, both modes are monitored with their respective periodicities, while during transitions, the monitoring is adjusted to reduce overall power consumption while maintaining necessary coverage
Solution Approach 2:
The device dynamically adjusts power consumption by switching between parallel and sequential RLM execution. During mode transitions, sequential execution reduces the simultaneous processing load and associated power consumption, while still ensuring adequate monitoring coverage for service continuity
3Device complexity
If wireless devices perform RLM procedures sequentially during mode transitions, then the processing complexity is reduced, but the transition time increases
Solution Approach 1:
The patent prepares for mode transitions by pre-configuring RLM parameters and predicting transition timing. This preliminary preparation allows the device to switch between parallel and sequential RLM execution more efficiently, reducing the actual transition time while maintaining lower processing complexity during the transition phase
Data Source
AI summary
A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to: determine a radio link monitoring (RLM) state of a wireless device that is served by a first cell and configured to operate with at least a first operational mode and a second operation mode within an overlapping time, and schedule at least one signal associated with the wireless device based on the RLM state.