Single RRC State Operation Modes for Wireless Power Saving
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Solution Overview
Problem
Existing power saving methods in wireless communication systems are limited by the restrictions of the RRC protocol and do not address the power consumption associated with transitioning between different RRC states.
Innovation Solution
Implementing a single RRC state with different operation modes that consume varying amounts of power, allowing the UE to default to a low power mode and temporarily switch to a higher power mode on demand, without transitioning between RRC states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RRC states are used to provide different communication capabilities, then communication capability adaptability is improved, but power consumption increases due to state transition overhead
Solution Approach 1:
The patent extracts the RRC state transition overhead from the system by eliminating multiple RRC states and using a single RRC state with multiple operation modes. This removes the source of power consumption associated with state transitions while preserving the ability to adapt communication capabilities through mode switching within the same state.
Solution Approach 2:
The patent merges the functionality of multiple RRC states into a single RRC state by introducing different operation modes (first operation mode and second operation mode) that can be switched between. This combines the adaptability of multiple states with the power efficiency of a single state, eliminating transition overhead.
2Use of energy by moving object
If the UE defaults to a low power operation mode, then power consumption is reduced, but communication capability is limited
Solution Approach 1:
The patent applies dynamics by making the operation mode configurable and switchable based on communication needs. The UE can dynamically transition between first operation mode (low power) and second operation mode (enhanced capability) depending on the communication requirements, allowing adaptive power management.
Solution Approach 2:
The patent changes the operational parameters by introducing different operation modes with distinct communication capabilities. The UE can switch between modes by changing parameters such as bandwidth, numerology, and other communication settings, enabling capability adaptation without changing RRC state.
3Adaptability or versatility
If the UE switches between RRC states to adjust communication capability, then capability adaptability is improved, but signaling overhead and transition time increase
Solution Approach 1:
The patent extracts the time-consuming RRC state transition process by eliminating the need to switch between multiple RRC states. Capability adjustment is achieved through operation mode switching within a single RRC state, removing the source of transition time overhead.
Solution Approach 2:
The patent segments the RRC state into different operation modes that can be independently switched between. This segmentation allows capability adjustment without triggering full RRC state transitions, reducing transition time and signaling overhead.
Data Source
AI summary
The power requirements of user equipments (UEs) are expected to increase as their capabilities increase. Some power saving methods have previously been proposed, but are limited by the radio resource control (RRC) protocol and do not address the power consumption associated with having to transition between different RRC states. In some embodiments described herein, there are not different RRC states, but instead a single RRC state. Within that single RRC state, there are different modes of operation, e.g. a default low power operation mode and an enhanced power operation mode. In some embodiments, the UE switches from the default operation mode to the enhanced operation mode on an on-demand basis (e.g. based on the communication capability required by the UE), and then returns back to the default operation mode.