CU-DU Energy-Saving Configuration Exchange for Granular Control
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Solution Overview
Problem
Existing network energy saving technologies lack the ability to provide finer granularity in energy saving levels, leading to inefficient energy consumption and performance trade-offs in network devices.
Innovation Solution
Implementing a method and apparatus for communication between centralized and distributed units of network devices to exchange energy saving configurations, including identity, percentage, cell association, application conditions, and performance information, allowing for dynamic adjustment of energy saving levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If existing network energy saving technologies are used, then network energy consumption is reduced, but energy saving granularity is insufficient and performance trade-off is inefficient
Solution Approach 1:
The patent segments energy saving into multiple discrete levels (first energy saving level, second energy saving level, third energy saving level) with different degrees of energy reduction. Each level corresponds to specific configuration parameters and activation conditions, enabling fine-grained control over energy consumption rather than a single binary state.
Solution Approach 2:
The patent implements dynamic energy saving configuration where the CU can switch between different energy saving levels based on real-time network conditions and UE capabilities. The system dynamically adjusts which energy saving level is active, allowing flexible adaptation to varying operational requirements and optimizing the balance between energy consumption and service quality.
2Loss of energy
If energy saving configurations are exchanged between CU and DU, then energy saving control is optimized, but communication overhead increases
Solution Approach 1:
The patent applies preliminary action by having the DU pre-configure multiple energy saving configurations locally before receiving activation instructions from the CU. The DU stores these configurations in advance and can quickly activate them without requiring full configuration retransmission, reducing communication overhead while maintaining optimized control.
Solution Approach 2:
The patent extracts only the necessary activation indication information from the full energy saving configuration set and transmits only this minimal control signal between CU and DU. The actual detailed configuration parameters are stored locally at the DU, so only the selection index or activation status needs to be communicated, significantly reducing information transmission requirements.
3Adaptability or versatility
If multiple energy saving levels are implemented, then energy saving flexibility is improved, but system complexity increases
Solution Approach 1:
The patent segments the complex energy saving management into a structured hierarchy with clearly defined levels. Each energy saving level has distinct configuration parameters, activation conditions, and performance characteristics. This segmentation simplifies decision-making at the CU by providing organized categories rather than a flat complex configuration space.
Solution Approach 2:
The patent implements feedback mechanisms where the CU receives information about network conditions and UE capabilities, uses this feedback to determine the appropriate energy saving level, and activates the corresponding configuration. The system continuously monitors performance and adjusts energy saving levels based on actual conditions, simplifying management through automated closed-loop control.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices, and computer readable medium for communication. According to embodiments of the present disclosure, a first apparatus receives energy saving information from a second apparatus. The energy saving information comprises a set of energy saving configurations. A energy saving configuration indicates one or more of a first information element associated with an identity of the energy saving configuration, a second information element associated with a percentage of energy saving of the energy saving configuration, a third information element of at least one cell associated with the energy saving configuration, at least one application condition of the energy saving configuration, or a performance information element of the at least one cell when the energy saving configuration is applied. The first apparatus transmits an indication of an active energy saving configuration to the second apparatus. In this way, the balance between energy saving and communication performances can be achieved.