Bandwidth Part Signaling for Network Energy-Saving Mode Switching
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Solution Overview
Problem
Communicating frequent network operation mode changes to multiple UEs in wireless communication systems leads to increased signaling overhead and inefficient power consumption.
Innovation Solution
Associating energy saving modes of the network entity with specific bandwidth parts (BWPs) for communication, allowing UEs to identify the appropriate energy saving mode based on time and frequency resource overlap, thereby reducing signaling overhead and improving power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network entity communicates frequent operation mode changes to multiple UEs, then the network can adapt to traffic conditions and optimize power consumption, but the signaling overhead increases
Solution Approach 1:
The patent combines operation mode indication with BWP configuration signaling. Instead of separate signaling for operation mode changes, the network entity indicates operation modes through BWP configuration messages, merging two signaling functions into one and reducing overall signaling overhead.
Solution Approach 2:
The BWP configuration signaling serves multiple functions: it configures bandwidth parts for communication and simultaneously indicates operation modes (including energy saving modes) to UEs. This multi-functionality reduces the need for dedicated operation mode signaling.
2Use of energy by stationary object
If the network entity operates in energy saving mode with reduced bandwidth, then power consumption decreases, but the communication capacity is reduced
Solution Approach 1:
The network entity dynamically switches between different operation modes (including energy saving modes with reduced bandwidth and normal modes with full bandwidth) based on current traffic conditions. This dynamic adaptation allows the system to optimize power consumption during low traffic while maintaining full capacity when needed.
Solution Approach 2:
The patent changes the bandwidth parameter of the network entity when transitioning to energy saving modes. By reducing the active bandwidth during low traffic conditions, the network entity decreases power consumption while maintaining essential communication capabilities.
3Use of energy by stationary object
If the network entity operates in flexible mode switching between energy saving and other modes, then power consumption is optimized based on traffic, but the device complexity increases
Solution Approach 1:
The patent applies different operation modes to different BWPs or different time periods. Instead of managing complex global state transitions, the network entity applies quality differences locally - specific BWPs are associated with specific operation modes, simplifying the management complexity while maintaining flexible power optimization.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive first control signaling including an energy saving mode indication that identifies one or more energy saving modes of a network entity, one or more respective bandwidth parts (BWPs) associated with each of the one or more energy saving modes, and one or more respective durations over which each of the one or more energy saving modes is to be used at the network entity. The UE may receive second control signaling scheduling a data signal to be communicated between the UE and the network entity over a duration over which an energy saving mode is to be used at the network entity. The UE may communicate the data signal over the duration in accordance with the energy saving mode and using a BWP associated with the energy saving mode.