Uplink Downlink Resource Alignment for Wireless Power Reduction
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Solution Overview
Problem
In wireless communication networks, excessive power consumption occurs due to misalignment between uplink and downlink resources, leading to inefficient resource utilization and increased energy expenditure.
Innovation Solution
The method involves determining a second resource based on a first DCI that assigns resources for a downlink transmission, setting a cut-off time, and identifying a third resource for transmitting an acknowledgment, thereby aligning uplink and downlink activities to reduce power consumption and optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink and downlink resources are not aligned, then resource utilization is inefficient, but power consumption increases
Solution Approach 1:
The patent implements dynamic alignment of uplink and downlink resources by determining the third resource (ACK transmission resource) based on the second resource (DL transmission resource) and a set of potential subsequent DL occasions. This dynamic adjustment allows the system to adapt resource allocation in real-time, ensuring uplink-downlink alignment while optimizing power consumption and resource utilization efficiency.
2Device complexity
If acknowledgment transmission resource is fixed, then resource allocation is simple, but resource utilization efficiency decreases
Solution Approach 1:
The patent determines the third resource dynamically based on the second resource and potential subsequent DL occasions, allowing flexible ACK transmission timing. This dynamic approach improves resource utilization efficiency while maintaining manageable complexity through structured determination rules.
Solution Approach 2:
The patent pre-determines a set of potential subsequent DL occasions before actual transmission occurs. This preliminary action enables efficient resource allocation by having candidate resources ready in advance, reducing the need for complex real-time decisions while improving resource utilization.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for determining a resource based on a resource assignment. One method includes receiving, at a UE, a first DL transmission in a first resource. The method includes, in response to receiving the first DL transmission, determining: a second resource based on a first DCI that assigns resources for the first DL transmission; a cut-off time, wherein a set of DL transmissions determined prior to the cut-off time and after the first DL transmission are considered elements of a set of potential subsequent DL occasions; and a third resource for transmitting an acknowledgment corresponding to the first DL transmission based on the second resource and the set of potential subsequent DL occasions. The method includes transmitting the acknowledgment in the third resource.