Uplink Resource Scheduling via N-tuple Configuration
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Solution Overview
Problem
In wireless communication networks, the existing methods for scheduling resource IDs for uplink reporting lead to inefficiencies, such as resource wastage and clashes between wireless devices, due to a limited number of available resource IDs, which results in suboptimal use of uplink bandwidth.
Innovation Solution
A method where a network node configures wireless devices with an N-tuple of resource IDs upon connection setup, selected from a data structure of unique combinations, and dynamically selects one resource ID for uplink reporting during downlink scheduling, ensuring efficient allocation and minimizing conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a limited number of resource IDs are provided to wireless devices for uplink reporting, then resource wastage is reduced, but resource clashes between devices occur
Solution Approach 1:
The patent transitions from using single resource IDs to using N-tuples of resource IDs, effectively moving from a one-dimensional resource allocation to an N-dimensional space. This dimensional expansion allows the system to accommodate more wireless devices without increasing the number of individual resource IDs, thereby reducing resource wastage while preventing clashes through the increased combinatorial capacity of N-tuples.
Solution Approach 2:
The patent makes a single resource ID serve multiple functions by using it as part of an N-tuple combination. Each resource ID in the tuple contributes to both identifying the wireless device and distinguishing the uplink report, allowing the limited set of resource IDs to fulfill multiple roles simultaneously and resolve the contradiction between limited resources and clash prevention.
2Reliability
If unique resources are provided to all wireless devices for uplink reporting, then resource clashes are avoided, but uplink bandwidth is occupied and resources are wasted
Solution Approach 1:
The patent merges multiple resource IDs into N-tuples to create unique device identifiers. Instead of allocating separate unique resources to each device, the system combines limited resource IDs in tuples, where the combination itself provides uniqueness. This merging approach avoids clashes while preventing the wastage that would result from allocating full unique resources to each device.
Solution Approach 2:
The patent introduces dynamic selection of resource IDs from the N-tuple based on downlink scheduling decisions. The specific resource ID used by a wireless device is not fixed but dynamically chosen from its configured N-tuple, allowing the system to adapt resource allocation to actual traffic patterns and avoid both clashes and wastage through flexible, dynamic resource management.
3Productivity
If resources are dimensioned by the number of needed ACK/NACK transmissions, then resource allocation matches demand, but resource clashes occur when devices are scheduled in the same slot
Solution Approach 1:
The patent segments the resource allocation process into two stages: configuration of N-tuples during connection setup, and dynamic selection during downlink scheduling. This segmentation allows the system to prepare multiple potential resource combinations in advance while resolving actual resource allocation at scheduling time based on which devices are active, thereby matching resource allocation to actual demand while preventing clashes through the segmented approach.
Data Source
AI summary
There is provided mechanisms for scheduling resource IDs for uplink reporting from a wireless device. A method is performed by a network node. The method comprises configuring, upon connection setup of the wireless device, the wireless device with one N-tuple of resource IDs. The N-tuple of resource IDs is assigned to the wireless device for uplink reporting. The N-tuple of resource IDs is selected from a data structure holding a plurality of N-tuples of resource IDs, each of which defining a unique combination of the resource IDs. The method comprises selecting, upon downlink scheduling of the wireless device, one of the resource IDs of the configured N-tuple of resource IDs. The method comprises providing information to the wireless device about the selected resource ID.