Minimum Scheduling Offset Management for Bandwidth Parts
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Solution Overview
Problem
Current wireless communication devices face challenges in managing power consumption, particularly during periods when transmission and reception of radio frequency signals are not necessary, leading to inefficient battery life due to unnecessary circuitry activation and buffering of incoming signals.
Innovation Solution
Implementing a method to manage a minimum scheduling offset for bandwidth parts, allowing devices to delay transmission until after decoding the paging message, thereby disabling unnecessary circuitry and reducing power consumption by switching between cross-slot and same-slot scheduling based on preconfigured offset values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device buffers incoming radio signals to ensure data is not lost before decoding paging messages, then data reliability is improved, but power consumption increases due to continuous buffering operations
Solution Approach 1:
The device performs preliminary decoding of paging messages before buffering incoming data signals. By determining the expected data arrival time in advance through paging message decoding, the device can selectively buffer only relevant signals later, avoiding continuous buffering and reducing power consumption while maintaining data reliability.
Solution Approach 2:
The paging message contains information about expected data arrival times, allowing the device to self-determine when to activate buffering and circuitry. This self-service mechanism eliminates the need for continuous monitoring and buffering, reducing power consumption while ensuring data is captured at the correct time.
2Speed
If the device keeps wireless circuitry activated to immediately receive and process signals, then communication responsiveness is improved, but battery life deteriorates
Solution Approach 1:
The device activates wireless circuitry periodically based on expected data arrival times obtained from paging messages. Instead of continuous activation, the circuitry is turned on only during periods when data is expected to arrive, maintaining communication responsiveness while significantly extending battery life through reduced active time.
Solution Approach 2:
The device uses paging messages to preliminarily determine expected data arrival times before actually receiving data. This preliminary information allows the device to activate circuitry only when necessary, balancing responsiveness with battery conservation by avoiding both continuous activation and excessive delays.
3Use of energy by moving object
If the device delays transmission until after decoding paging messages to avoid buffering, then power consumption is reduced, but transmission timing precision may worsen
Solution Approach 1:
The device uses feedback from decoded paging messages about expected data arrival times to precisely time its transmission activations. This feedback mechanism ensures that even though transmission is delayed until after paging decoding, the actual data reception timing remains precise by activating circuitry exactly when data is expected to arrive.
Data Source
AI summary
A method and apparatus are provided for managing a minimum scheduling offset for one or more bandwidth parts. A configuration for a set of one or more preconfigured minimum scheduling offset values are received (502) for a particular bandwidth part of a cell. A default minimum scheduling offset for the particular bandwidth part of the cell, that is selected from the one or more preconfigured minimum scheduling offset values of the received configuration is determined (504). The particular bandwidth part is switched (506) to from another bandwidth part. The determined default minimum scheduling offset for the particular bandwidth part is applied (508). For the particular bandwidth part, a time gap between a scheduling of a transmission for the user equipment and a physical downlink control channel in unit of slots is equal to or larger than the default minimum scheduling offset (510).