Carrier-Group Cross-Slot Scheduling Adaptation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing scheduling offsets for wireless communications, particularly in New Radio (NR) and LTE technologies, which can lead to increased power consumption and resource utilization due to unnecessary buffering and active receiver components.
Innovation Solution
The proposed solution involves dynamically managing scheduling offsets by configuring user equipment (UE) to prevent the use of specific offset values, such as zero, thereby optimizing resource allocation and reducing power consumption. This is achieved through a method where the base station transmits an indication to the UE to modify its time-domain resource allocation configuration, allowing the UE to adjust its scheduling accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE uses default scheduling offset values including zero, then resource allocation flexibility is maintained, but power consumption increases due to continuous buffering and active receiver components
Solution Approach 1:
The patent implements dynamic scheduling offset management where the UE can switch between different offset values (including zero and non-zero offsets) based on traffic conditions and power saving requirements. The network can configure multiple offset values and indicate which ones are currently valid, allowing the system to adapt between flexibility and power efficiency in real-time
Solution Approach 2:
The patent changes the scheduling offset parameter from a fixed default value to a dynamically configurable parameter. The network can configure a set of allowed offset values and indicate which subset is currently permitted, enabling the UE to adjust its scheduling behavior to balance between resource allocation flexibility and power consumption
2Productivity
If the UE buffers data for potential same-slot scheduling, then scheduling flexibility is maintained, but resource efficiency decreases due to continuous buffering operations
Solution Approach 1:
The patent makes buffering behavior dynamic by allowing the UE to switch between buffering and non-buffering modes based on the configured allowed offset values. When non-zero offsets are required, buffering can be reduced or eliminated, improving resource efficiency while maintaining necessary scheduling flexibility through the offset configuration
3Reliability
If the receiver components remain active for same-slot scheduling, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic control of receiver component activity through scheduling offset configuration. When cross-slot scheduling with non-zero offsets is configured, the UE can power down receiver components during intervals when no data is expected, reducing power consumption while maintaining communication responsiveness when data is actually scheduled
Solution Approach 2:
The patent enables periodic activation of receiver components based on the scheduling offset pattern. Instead of continuous activation, the receiver operates periodically according to the configured offset values, being active only when data transmission is scheduled and inactive during intervals, thus reducing overall power consumption while maintaining responsiveness
Data Source
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AI summary
Certain aspects of the present disclosure provide techniques for adapting crossslot scheduling based on carrier groups. For example, certain aspects provide techniques for receiving a time-domain configuration comprising one or more offset values of timedomain resources relative to reception of physical downlink control channel (PDCCH), determining which at least one offset value of the one or more offset values are greater than or equal to a minimum offset value of the corresponding carrier, and for each carrier of the group of carriers, one or more of transmitting over a physical uplink shared channel (PUSCH) or monitoring a physical downlink shared channel (PDSCH).