SPS Skipping Indicator for UE Feedback Reduction
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in semi-persistent scheduling (SPS) due to unnecessary UE feedback and resource allocation in scenarios where no data is transmitted, leading to increased uplink interference and power consumption.
Innovation Solution
Implementing an SPS skipping indicator that allows User Equipment (UE) to skip specific SPS occasions without PDSCH transmissions, thereby reducing feedback messages and maintaining resources without additional signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE transmits feedback messages for all SPS occasions, then the base station receives complete acknowledgment information, but uplink interference and power consumption increase
Solution Approach 1:
The patent extracts and removes unnecessary feedback transmissions by introducing an SPS skipping indicator that allows UE to skip feedback messages on specific SPS occasions when no PDSCH transmission occurs, thereby eliminating harmful uplink interference while maintaining necessary feedback communication
Solution Approach 2:
The patent changes the transmission parameter of feedback messages by controlling UE to skip transmission on certain SPS occasions based on the SPS skipping indicator, transforming the feedback transmission from a continuous process to a selective process that avoids unnecessary interference
2Reliability
If UE decodes all SPS occasions, then no data is missed, but power consumption increases
Solution Approach 1:
The patent removes unnecessary decoding operations by enabling UE to skip SPS occasions indicated by the SPS skipping indicator, thereby reducing power consumption while maintaining reliable data reception on occasions that actually contain PDSCH transmissions
Solution Approach 2:
The system enables self-service by allowing UE to autonomously determine which SPS occasions require decoding based on the SPS skipping indicator, with the UE itself managing its power consumption by skipping unnecessary decoding operations
3Reliability
If SPS resources are allocated frequently, then data transmission reliability improves, but resource efficiency decreases when no data is transmitted
Solution Approach 1:
The patent applies periodic action by using semi-persistent scheduling with specific periodicity configurations, combined with SPS skipping indicators to periodically activate resources only when needed, thereby maintaining transmission reliability while avoiding waste during periods without data
Solution Approach 2:
The patent changes the resource allocation parameter by dynamically controlling UE to skip SPS occasions based on actual data transmission needs, transforming fixed periodic resource allocation into an adaptive allocation that improves resource efficiency
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, a semi-persistent scheduling (SPS) skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a physical downlink shared channel (PDSCH) transmission; and ignore the at least one SPS occasion of the set of SPS occasions by not transmitting a feedback message associated with the at least one SPS occasion. Numerous other aspects are provided.