SNR Mode Indication for Downlink Communication Efficiency
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently indicating the Signal to Noise Ratio (SNR) for downlink communications, which affects the selection of appropriate modulation and coding schemes and ranks, leading to suboptimal power usage and communication efficiency.
Innovation Solution
A method where a base station transmits an indication of an SNR mode to a user equipment (UE) in a first slot, allowing the UE to adjust its hardware configuration for subsequent slots, thereby optimizing power usage and communication efficiency without increasing transmission overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station provides detailed SNR information to the UE, then the UE can select optimal modulation and coding schemes, but the transmission overhead increases
Solution Approach 1:
The patent transforms continuous SNR values into discrete SNR modes (e.g., first SNR mode, second SNR mode) with predefined ranges. This parameter quantization reduces the amount of information that needs to be transmitted while still enabling the UE to select appropriate modulation and coding schemes within each SNR range, thus resolving the contradiction between communication efficiency and transmission overhead.
2Use of energy by moving object
If the UE continuously monitors and adjusts SNR modes, then power consumption is optimized, but processing complexity increases
Solution Approach 1:
The base station performs preliminary action by determining and indicating the appropriate SNR mode in advance before the actual data transmission. This allows the UE to pre-configure its reception parameters without needing to continuously process and adjust SNR information in real-time, thereby optimizing power consumption while limiting processing complexity to predefined mode transitions.
3Ease of operation
If the base station indicates SNR mode for future slots, then the UE can adjust hardware configuration in advance, but the indication must be transmitted in advance consuming resources
Solution Approach 1:
The base station indicates the SNR mode for future slots (e.g., second slot, third slot) in advance during the current slot. This preliminary indication allows the UE to adjust its hardware configuration before the actual transmission occurs, improving ease of operation. The time loss is minimized because the indication is provided as part of the normal control signaling流程 rather than requiring separate dedicated signaling.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station and in a first slot, an indication of a signal to noise ratio (SNR) mode, of a plurality of SNR modes, to be used by the UE for one or more downlink communications in one or more slots that occur after the first slot, wherein different SNR modes of the plurality of SNR modes support at least one of different modulation and coding schemes, different ranks, or a combination thereof; and operate using the SNR mode in the one or more slots based at least in part on the indication. Numerous other aspects are provided.