Flexible Subframe Dynamic Configuration for Wireless Energy Savings
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in energy consumption and network resource usage due to inefficient communication resource management, particularly in dynamically configuring subframes for improved capacity, speed, and flexibility.
Innovation Solution
The implementation of systems and methods that allow User Equipments (UEs) and evolved Node Bs (eNBs) to dynamically configure flexible subframes by determining their type and scheduling downlinks, using indication subframes to indicate and schedule Physical Downlink Shared Channels (PDSCH), thereby optimizing resource allocation and reducing unnecessary monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UEs continuously monitor all subframes for downlink transmissions, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the subframe monitoring behavior adaptive rather than static. UEs dynamically adjust their monitoring behavior based on real-time indications from the eNB, transitioning between monitoring and non-monitoring states according to the actual transmission needs of flexible subframes.
Solution Approach 2:
The patent changes the parameter of subframe configuration from fixed to flexible. By allowing the direction (downlink/uplink) of flexible subframes to be dynamically changed based on traffic conditions, the system optimizes both reliability and energy consumption according to actual communication needs.
2Productivity
If flexible subframes are dynamically configured to improve communication capacity and flexibility, then network efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the eNB prepare and indicate the intended use of flexible subframes in advance through indication subframes. This allows UEs to prepare their reception or transmission settings beforehand, reducing the complexity of real-time processing while maintaining high flexibility and capacity.
Solution Approach 2:
The system implements feedback mechanisms where the eNB provides indications to UEs about the configured subframe directions, and UEs report their status. This feedback loop simplifies the complexity management by ensuring both sides have synchronized understanding of the flexible subframe configuration.
3Loss of energy
If UEs monitor only scheduled downlink subframes, then energy consumption is reduced, but communication flexibility decreases
Solution Approach 1:
The indication subframe mechanism provides feedback to UEs about upcoming downlink transmissions in flexible subframes. This allows UEs to selectively monitor only when necessary, maintaining energy savings while preserving the flexibility to receive scheduled transmissions.
Solution Approach 2:
The eNB performs preliminary indication of scheduled downlinks in flexible subframes, allowing UEs to prepare for selective monitoring. This preliminary action ensures that when downlink transmissions are scheduled, UEs are ready to receive them, maintaining communication flexibility while avoiding unnecessary monitoring.
Data Source
AI summary
A user equipment (UE) for dynamically configuring a flexible subframe is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines that a subframe is a flexible subframe. The UE determines whether a downlink is indicated for the flexible subframe. The UE sets the flexible subframe as a downlink subframe if a downlink is indicated.