Adaptive Uplink Transmission Skipping in Wireless User Equipment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face inefficiencies in power management and resource allocation due to unnecessary uplink transmissions when user equipment (UE) lacks data, leading to potential increased latency and impact on low-latency applications and Quality of Service (QoS) flows.
Innovation Solution
Implementing adaptive uplink transmission skipping techniques in user equipment (UE) to dynamically disable uplink transmissions when no data is available, using null data transmissions to maintain scheduling periodicity and prevent changes in resource allocation based on traffic characteristics and application requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE skips uplink transmission when no data is available, then power consumption is reduced, but scheduling periodicity may be adjusted negatively impacting low-latency applications
Solution Approach 1:
The UE dynamically adjusts its transmission behavior based on real-time conditions. When no data is available, the UE can skip transmissions to save power, but when data becomes available or specific conditions are met, the UE resumes transmissions. This dynamic adaptation allows the system to optimize power consumption without permanently compromising latency performance for low-latency applications.
Solution Approach 2:
The UE changes transmission parameters such as skipping transmissions during idle periods while maintaining the ability to transmit immediately when data arrives. This parameter adjustment allows the system to reduce average power consumption while ensuring that latency requirements are met when actual data transmission is needed, rather than maintaining constant transmission periodicity.
2Loss of time
If the UE transmits uplink messages with null data to prevent scheduling changes, then scheduling periodicity is maintained for low-latency applications, but power is consumed unnecessarily
Solution Approach 1:
The UE applies different transmission strategies to different types of traffic or different time periods. Instead of uniformly transmitting null data to maintain scheduling periodicity, the UE selectively maintains periodicity only when necessary for specific applications or traffic types, while skipping transmissions for other cases. This localized application of transmission maintenance reduces overall power consumption while preserving latency performance where critical.
3Productivity
If the network entity adjusts scheduling periodicity based on skipped transmissions, then resource allocation is optimized, but performance of low-latency applications degrades
Solution Approach 1:
The UE provides feedback to the network entity about its transmission status and requirements. This feedback mechanism allows the network to understand when skipped transmissions are acceptable and when they are not, enabling the network to maintain appropriate scheduling periodicity for low-latency applications even when the UE skips transmissions during idle periods. The feedback ensures that resource allocation optimization does not compromise application performance.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling configuring the UE to skip uplink transmission when the UE does not have data to transmit. The UE may receive a grant for uplink resources. In some examples, the grant may be a configured grant or a dynamic grant. The UE transmit, when the UE does not have data to transmit, an uplink message via the uplink resources based on traffic characteristics of the UE, the uplink message comprising null data.