Base Station Configures Terminal for Intermittent RRC Inactive Data
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Solution Overview
Problem
In wireless communication systems, particularly in the RRC inactive mode, the inefficiency in data communication control arises due to frequent power switching of the wireless receiving circuit in terminal station devices, leading to decreased control efficiency during the transmission of small data.
Innovation Solution
A base station device configures and controls the terminal station device to perform communication by intermittently using specific durations for first and second communications, minimizing the frequency of wireless receiving circuit power switching by setting radio resources in advance and optimizing beam selection for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the terminal station device frequently switches power on and off for small data transmission in RRC inactive mode, then power consumption is reduced during idle periods, but control efficiency deteriorates due to frequent power switching
Solution Approach 1:
The base station pre-configures radio resources and beam settings for the terminal before it enters RRC inactive mode. This preliminary configuration includes setting up PUCCH resources, downlink beam identifiers, and uplink beam settings. When the terminal needs to transmit small data, it can immediately use these pre-configured resources without needing to switch power on for configuration procedures, thus maintaining control efficiency while reducing power consumption.
Solution Approach 2:
The system dynamically manages the terminal's power state by allowing it to remain in a low-power RRC inactive state while maintaining pre-configured radio resources. The terminal can rapidly transition between power states using these dynamic configurations, optimizing the balance between power consumption and control efficiency based on data transmission needs.
2Loss of energy
If the terminal station device enters RRC inactive mode for power saving, then power consumption is reduced, but data communication control efficiency deteriorates
Solution Approach 1:
The base station performs preliminary configuration of radio resources and beam settings before the terminal enters RRC inactive mode. This includes configuring PUCCH resources for uplink control information, downlink beam identifiers for reception, and uplink beam settings for transmission. These pre-configured resources enable the terminal to efficiently handle data communication while in low-power state without requiring frequent wake-ups for configuration procedures.
Solution Approach 2:
The communication protocol is segmented into configuration phase (performed while terminal is active) and execution phase (performed while terminal is in inactive mode). The base station completes all necessary configuration setup before the terminal transitions to RRC inactive mode, separating the control plane operations from the data plane operations to maintain efficiency while saving power.
3Device complexity
If radio resources are not pre-configured for RRC inactive mode, then device complexity is reduced, but communication efficiency deteriorates due to frequent power switching
Solution Approach 1:
The base station performs preliminary configuration of radio resources including PUCCH resources, downlink beam identifiers, and uplink beam settings before the terminal enters RRC inactive mode. This advance configuration eliminates the need for frequent power switching and configuration procedures during inactive mode, significantly improving communication efficiency while the configuration overhead is incurred only once during the transition to inactive state.
Data Source
AI summary
A base station device includes a transmitter configured to perform communication when a terminal station device associated with the base station device is in a predetermined state, and a controller configured to configure, regarding setting that is related to a region in which a control signal for the communication performed by the terminal station device is decoded and that is related to a duration in which the region becomes available, a duration that corresponds to first communication and a duration that corresponds to second communication out of the communication, and control the terminal station device so as to cause the terminal station device to perform the communication by intermittently using each of the durations.