Subband Scheduling with Carrier Subsets for Lower UE Power
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in energy consumption due to wideband operations, particularly in UE devices, which enter high-power states for sustained peak throughput, leading to increased power consumption and energy waste.
Innovation Solution
The network schedules UEs with a subset of active component carriers, allowing them to operate at reduced peak throughput and relax processing timelines, thereby reducing the need for high-power states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wideband operations are used to achieve sustained peak throughput, then communication efficiency is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the component carrier configuration flexible and time-varying. The network can dynamically adjust the subset of scheduled component carriers based on UE capabilities and current communication needs, allowing the system to transition between different power states and throughput levels rather than being locked into a fixed wideband configuration
Solution Approach 2:
The patent changes the parameter of component carrier configuration from a fixed maximum state to a variable subset state. By modifying the configuration parameter to indicate only a subset of active component carriers for scheduling, the system can adjust the operating point to achieve lower power consumption while maintaining adequate communication efficiency
2Productivity
If a maximum number of active component carriers are configured, then communication capacity is improved, but processing complexity increases
Solution Approach 1:
The patent extracts only the necessary subset of component carriers from the full set of active component carriers. Instead of processing and scheduling across all available carriers, the system identifies and schedules only a specific subset indicated by the configuration parameter, reducing the processing scope and complexity while maintaining communication capacity
Data Source
AI summary
An apparatus for wireless communication at a user equipment has one or more memories and one or more processors coupled to the memories. The processor(s) is configured to receive a first configuration of a maximum number of active component carriers. The processor(s) is also configured to receive a second configuration indicating a subset of scheduled component carriers from the maximum number of active component carriers. The receiving of the second configuration occurs in accordance with a timeline that allows the UE to process a scheduled physical downlink shared channel (PDSCH) at a reduced peak throughput corresponding to the subset of scheduled component carriers.