Multi-Layer Downlink Waveform Signaling to Reduce UE Processing
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Solution Overview
Problem
User equipment (UE) wastes processing resources attempting to receive and process downlink communications using multiple types of waveforms when a base station is capable of using multiple different types of waveforms, leading to inefficient resource utilization.
Innovation Solution
Implementing waveform signaling to notify the UE of the type of waveform being used for downlink communication, thereby conserving processing, memory, and RF resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a base station uses multiple different types of waveforms for downlink communication, then waveform versatility and adaptability are improved, but UE processing resource consumption increases
Solution Approach 1:
The base station performs preliminary action by signaling the waveform type to the UE before the actual downlink data transmission. This allows the UE to prepare its processing resources in advance by knowing which waveform type to expect, avoiding the need to attempt processing with multiple waveform types and thereby reducing unnecessary processing resource consumption.
Solution Approach 2:
A waveform indication signal acts as an intermediary between the base station and the UE. This intermediary carries information about the waveform type to be used, enabling the UE to configure its processing accordingly without having to trial multiple waveform types, thus resolving the contradiction between waveform versatility and processing efficiency.
2Adaptability or versatility
If a base station uses multiple different types of waveforms for downlink communication, then waveform versatility is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The base station signals the waveform type in advance before data transmission, allowing the UE to optimize its processing configuration. This preliminary action prevents wasted processing attempts on incorrect waveform types, thereby improving resource utilization efficiency while maintaining the ability to use multiple waveform types for versatility.
Solution Approach 2:
The system dynamically adapts the waveform type based on communication conditions, with the base station selecting the appropriate waveform and signaling it to the UE. This dynamic approach allows the system to leverage multiple waveform types when needed for versatility while ensuring efficient resource utilization by avoiding unnecessary processing of incorrect waveforms.
3Adaptability or versatility
If a base station uses multiple different types of waveforms for downlink communication, then waveform adaptability is improved, but UE processing time increases
Solution Approach 1:
The base station performs the action of signaling the waveform type before the UE begins processing the downlink data. This preliminary provision of waveform information allows the UE to immediately configure its processing for the correct waveform type, eliminating time-wasting trial-and-error processing attempts and reducing overall processing time while maintaining waveform adaptability.
Solution Approach 2:
The system implements a feedback mechanism where the base station provides information about the waveform type to the UE. This feedback enables the UE to adjust its processing in real-time to match the actual waveform being transmitted, preventing time loss from processing mismatches while preserving the ability to adapt to different waveform types.
Data Source
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AI summary
Techniques described herein use waveform signaling for conserving resources. In an exemplary method, a base station generates a first transmission layer of a multi-layer communication using a first waveform of a plurality of waveforms, generates a second transmission layer of the multi-layer communication using a second waveform of the plurality of waveforms, wherein the first waveform and the second waveform are different, and transmits the first transmission layer and the second transmission layer using a same time resource and a same frequency resource, wherein the first transmission layer is transmitted using the first waveform and the second transmission layer is transmitted using the second waveform.