Power Saving Mode Selection in LTE User Equipment
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Solution Overview
Problem
Current LTE and LTE-Advanced systems lack a standardized method for a user equipment (UE) to select and switch between power saving modes, affecting power consumption efficiency in wireless communication systems.
Innovation Solution
A communication device and network system that transmits capability information about available power saving modes to a network entity, selects a suitable mode, and communicates the chosen mode and related parameters to another network entity, enabling efficient power management through specific messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple power saving modes are supported in LTE and LTE-Advanced systems, then power consumption efficiency can be improved, but there is no standardized method for UE to select and switch between modes, leading to increased system complexity
Solution Approach 1:
The network entity provides feedback to the UE by sending a selected power saving mode from the received set of modes. This feedback mechanism allows the network to control which mode the UE should use, resolving the selection complexity while maintaining multiple mode support for energy efficiency.
Solution Approach 2:
The patent establishes a standardized selection process that equalizes the complexity burden across all UEs by providing a uniform procedure for mode selection and switching. This standardization ensures that all devices follow the same protocol, reducing overall system complexity while enabling power saving mode functionality.
2Use of energy by moving object
If the UE selects and switches between power saving modes dynamically, then power consumption is reduced, but the lack of standardized selection and switching methods increases operational complexity
Solution Approach 1:
The network entity sends feedback indicating the selected power saving mode to the UE. This feedback mechanism simplifies operation by removing the burden of mode selection from the UE, while still enabling dynamic power saving through network-controlled mode changes.
Solution Approach 2:
The UE autonomously transmits the set of supported power saving modes to the network entity, which then handles the selection process. This self-service approach allows the UE to provide its capabilities while letting the network make the optimal selection, reducing operational complexity at the UE side.
Data Source
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AI summary
A communication device of handling power saving comprises a storage unit for storing instructions and a processing means coupled to the storage unit. The processing means is configured to execute the instructions stored in the storage unit. The instructions comprise transmitting a first message comprising capability information to a first network entity, wherein the capability information indicates a plurality of power saving modes of the communication device; selecting a power saving mode from the plurality of power saving modes; and transmitting a second message comprising the power saving mode and at least one power saving parameter related to the power saving mode to a second network entity.