UE Mobility Optimization for Network Energy Saving
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Solution Overview
Problem
Wireless communication systems face challenges in optimizing network energy savings, particularly when user equipment (UE) selects network entities without considering their operation modes, leading to inefficient energy consumption and potential communication delays.
Innovation Solution
The UE calculates values based on operation mode indications received from network entities, such as energy saving, compensation, and baseline modes, to select the most energy-efficient network entity, ensuring that the selected network entity supports its capabilities and maintains efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If UE selects network entities without considering operation modes, then device complexity is reduced, but network energy consumption increases
Solution Approach 1:
The network entity transmits operation mode indications to the UE in advance, allowing the UE to pre-calculate ranking values and make informed selection decisions without complex real-time analysis, thus reducing energy consumption while maintaining selection intelligence
Solution Approach 2:
The patent introduces operation mode parameters (energy saving mode, baseline mode, compensation mode) that modify the cell reselection evaluation process. By changing the evaluation parameters based on operation modes, the system optimizes network energy consumption without significantly increasing UE complexity
2Productivity
If UE considers operation modes in network entity selection, then network energy savings are improved, but calculation complexity increases
Solution Approach 1:
The network entity provides operation mode indications and relevant parameters to the UE beforehand. This allows the UE to perform calculations more efficiently by using pre-provided information rather than computing everything in real-time, thus improving energy saving efficiency without excessive calculation complexity
Solution Approach 2:
The UE autonomously calculates ranking values based on operation mode indications and provided parameters, making independent selection decisions without requiring complex network control or additional signaling, thereby improving efficiency while keeping calculation complexity manageable
3Loss of energy
If UE selects network entities based on operation modes, then energy consumption is reduced, but selection reliability may be affected
Solution Approach 1:
The patent modifies the cell reselection evaluation parameters based on operation modes (adding QoffsetMODE). This parameter adjustment allows the system to steer UEs toward energy-saving modes when possible while maintaining reliable communication by ensuring that only suitable network entities are selected based on modified but still rigorous evaluation criteria
Solution Approach 2:
The network entity provides operation mode indications as feedback to the UE, enabling the UE to adjust its selection behavior accordingly. This feedback mechanism ensures that energy-saving selections are made with full knowledge of network state, maintaining reliability while reducing energy consumption
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support mobility optimization for network energy saving. In some cases, user equipment (UE), operating in an idle or inactive mode, may receive an indication of an operation mode from a set of operation modes, where each network entity of a set of network entities is associated with an operation mode from the set of operation modes, including at least an energy saving mode and a baseline mode. The UE may calculate a set of values for each network entity based on the received indication and one or more parameters associated with the operation mode of a respective network entity. Additionally, the UE may select a network entity from the set of network entities based on each value of the set of values associated with the selected network entity being greater than one or more thresholds.