Skipping SPS Occasions in Wireless Communication

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current wireless communication systems face inefficiencies in managing semi-persistent scheduling (SPS) occasions, leading to unnecessary power and processing resource consumption when no data is transmitted, as UEs continue to monitor for signals and send HARQ feedback during skipped SPS occasions.

Innovation Solution

Implementing a method where a base station transmits an indication to a UE to skip specific SPS occasions within a periodic set, allowing the UE to refrain from monitoring and the base station to refrain from transmitting during these occasions, thereby conserving resources and reducing network overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If SPS occasions are maintained for periodic data transmission, then reliable data communication is ensured, but power and processing resources are wasted when no data is transmitted

Engineering Contradiction:
Improvedata communication reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements a skipping mechanism where the base station sends an indication message to the UE to skip monitoring certain SPS occasions when no data is available for transmission. This allows the system to temporarily bypass unnecessary monitoring and processing activities while maintaining the SPS configuration, thereby reducing power consumption and processing overhead without compromising data communication reliability when data becomes available.

Inventive Principle:
Principle #21Skipping (Rushing through)

2Productivity

If SPS occasions are maintained for periodic transmission, then transmission readiness is preserved, but processing resources are consumed unnecessarily

Engineering Contradiction:
Improvetransmission readinessVSAvoidprocessing resource consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent enables the UE to skip processing and monitoring during indicated SPS occasions when no data transmission is scheduled. The SPS configuration remains intact and can be quickly reactivated, allowing the system to maintain transmission readiness capability while avoiding unnecessary processing resource consumption during idle periods.

Inventive Principle:
Principle #21Skipping (Rushing through)

3Productivity

If the base station continues transmitting during skipped occasions, then channel utilization is maximized, but network overhead increases

Engineering Contradiction:
Improvechannel utilizationVSAvoidnetwork overhead
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The patent implements a skipping indication mechanism where the base station informs the UE about SPS occasions that will be skipped due to no data availability. This allows the base station to pause transmissions during idle periods, reducing network overhead and unnecessary channel utilization, while maintaining the ability to quickly resume transmissions when data becomes available.

Inventive Principle:
Principle #21Skipping (Rushing through)

Data Source

PatentUS11877293B2Skipping occasions in semi-persistent scheduling
Publication Date: 2024.01.16 QUALCOMM INC
  • US11877293B2 patent drawing
  • US11877293B2 patent drawing
  • US11877293B2 patent drawing

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, an indication that one or more semi-persistent scheduling (SPS) occasions, within a periodic set of SPS occasions, will be skipped. Accordingly, the UE may refrain from monitoring, for signals from the base station, during the one or more SPS occasions that are skipped. Additionally, in some aspects, the UE may refrain from transmitting, to the base station, acknowledgment feedback associated with the one or more SPS occasions that are skipped. Numerous other aspects are provided.