Scheduling Request Periodicity Configuration for Downlink Conflict Reduction
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Solution Overview
Problem
Wireless communication systems face challenges in increasing the number of scheduling request opportunities and reducing conflicts between scheduling requests and downlink resources, leading to inefficiencies in resource allocation.
Innovation Solution
A method where a base station configures a user equipment (UE) with a scheduling request periodicity and offset, allowing the UE to apply these to time periods that do not conflict with downlink transmissions, thereby identifying and transmitting scheduling requests during non-conflicting resource periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If scheduling request opportunities are increased, then the number of available transmission opportunities increases, but conflicts with downlink resources increase
Solution Approach 1:
The patent segments the time periods into two distinct subsets: a first subset containing time periods suitable for scheduling request transmission (non-conflicting with downlink), and a second subset containing time periods with conflicts. By applying periodicity and offset only to the first subset, the system divides the resource allocation space to eliminate harmful overlaps while preserving sufficient transmission opportunities.
Solution Approach 2:
The patent applies different quality characteristics to different subsets of time periods. The first subset is designated with high quality (non-conflicting, suitable for SR transmission), while the second subset is excluded or treated differently. This local differentiation ensures that scheduling requests are only transmitted in time periods with appropriate characteristics, avoiding downlink resource conflicts.
2Ease of operation
If periodicity and offset are applied to all time periods, then scheduling request transmission is simplified, but conflicts with downlink transmissions increase
Solution Approach 1:
Rather than applying periodicity and offset uniformly to all time periods (which would simplify operation but cause conflicts), the patent segments the application to only the first subset of time periods. This selective application maintains operational simplicity within the valid subset while avoiding the harmful effects of applying the same parameters to conflicting time periods.
Solution Approach 2:
The patent implements local quality by restricting the application of periodicity and offset parameters to time periods with appropriate characteristics (the first subset). This ensures that the ease of operation is maintained for valid transmission opportunities while preventing conflicts in unsuitable time periods.
3Object-affected harmful factors
If scheduling request opportunities are reduced, then conflicts with downlink resources are reduced, but the number of available transmission opportunities decreases
Solution Approach 1:
The patent uses segmentation to identify and utilize the first subset of time periods that are free from downlink conflicts. By counting periodicity only within this subset, the system maximizes the number of available scheduling request opportunities within the non-conflicting time periods, rather than arbitrarily reducing all opportunities.
Solution Approach 2:
The patent enhances local quality by designating specific time periods (first subset) with the appropriate characteristics for SR transmission. This creates more effective transmission opportunities in high-quality time periods rather than uniformly reducing opportunities across all time periods.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described to support reducing conflicts with between scheduling request opportunities and downlink resources. A base station may configure a user equipment (UE) with a scheduling request periodicity and offset for identifying scheduling request opportunities. The UE and base station may apply the periodicity and the offset to a first subset of time periods of a set of multiple time periods, where the first subset of time periods may include scheduling request opportunities that do not overlap with resources allocated for downlink transmissions. Based on applying the offset and periodicity to the first subset of time periods, the UE may identify a scheduling request opportunity, in a first time period of the first subset, and may transmit a scheduling request to the base station via the scheduling request opportunity.