Wireless Device Survival Time Resource Allocation
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Solution Overview
Problem
Industrial IoT (IIoT) communication systems face challenges in ensuring data arrival within a survival time mode, leading to potential production line interruptions due to missing or delayed control signals, requiring enhanced methods to improve data arrival probability.
Innovation Solution
A wireless communication system with a first wireless communication device that controls radio resource allocation in frequency and time domains, and manages radio measurement duration to enhance data transmission during survival time mode, avoiding interference and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio resources are allocated for data transmission during survival time mode, then data arrival probability is improved, but radio measurement accuracy deteriorates due to interference
Solution Approach 1:
The patent segments the radio resource allocation by dividing it into dedicated measurement resources and data transmission resources. The base station allocates specific time-frequency resources exclusively for radio measurements and separate resources for data transmission, preventing interference between these two functions while operating in survival time mode.
Solution Approach 2:
The patent implements dynamic adjustment of radio measurement duration based on the survival time requirement. The base station dynamically configures the measurement duration parameter, shortening it when survival time is critical to ensure data transmission priorities, while still maintaining sufficient measurement accuracy through adaptive resource allocation.
2Measurement precision
If radio measurement duration is extended to improve measurement accuracy, then measurement precision is improved, but data transmission timeliness deteriorates
Solution Approach 1:
The patent changes the parameter of measurement duration dynamically based on system conditions. When survival time mode is activated, the base station adjusts the measurement duration parameter to a shorter value, accepting reduced measurement precision in exchange for meeting the strict timing requirements of data transmission.
Solution Approach 2:
The patent performs preliminary configuration of measurement resources before data transmission begins. The base station pre-allocates measurement resources and configures measurement parameters in advance, allowing measurements to be completed quickly without delaying the urgent data transmission that must occur within the survival time window.
3Measurement precision
If dedicated measurement resources are allocated to improve measurement accuracy, then measurement precision is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent makes radio resources universal by enabling them to serve multiple functions. The same time-frequency resources can be allocated for data transmission during normal operation and repurposed for radio measurements when needed, or vice versa. This multi-functionality improves overall resource utilization efficiency while maintaining the ability to achieve accurate measurements when required.
Data Source
AI summary
A first wireless communication device included in a wireless communication system, the first wireless communication device includes, a communicator that performs communication with a second wireless communication device supporting a survival time, and a controller configured to control allocation of a radio resource for data transmission in terms of frequency band and time domain, in a survival time mode in which the survival time is being applied, and configured to control, in accordance with the survival time and information on a radio measurement duration during which the second wireless communication device performs radio measurement, configuration of the radio measurement duration.