Flexible Uplink Transmission Skipping for XR Devices
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Solution Overview
Problem
Current wireless communication systems face challenges such as increased latency and over-allocation of resources in uplink transmissions, leading to inefficient resource utilization and higher power consumption, particularly in devices with varying packet sizes like extended reality (XR) devices.
Innovation Solution
The implementation of flexible uplink transmission skipping, where user equipment (UE) can select a reduced set of resources from the allocated set for transmission, allowing for optimized resource usage by transmitting only the necessary number of resource blocks (RBs) based on the amount of data available, rather than using the full allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the full allocated resource set is used for uplink transmission, then the data transmission capacity is sufficient, but the resource utilization efficiency deteriorates and power consumption increases
Solution Approach 1:
The patent applies partial action by allowing the UE to transmit only on a subset of the allocated resource blocks rather than using the full allocation. The UE determines the actual data size and selects only the necessary number of RBs for transmission, avoiding the waste of transmitting on fully allocated resources when data volume is small, thus reducing power consumption while maintaining sufficient data transmission capacity
Solution Approach 2:
The patent changes the transmission parameters dynamically by adjusting the number of resource blocks used based on the actual data size. The UE can flexibly modify the transmission resource allocation from the originally allocated set, adapting the transmission parameters to match the actual data volume and improving resource utilization efficiency
2Quantity of substance
If the full allocated resource set is used for uplink transmission, then the data transmission capacity is sufficient, but the resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies partial action by allowing the UE to transmit only on a subset of the allocated resource blocks rather than using the full allocation. The UE determines the actual data size and selects only the necessary number of RBs for transmission, avoiding the waste of transmitting on fully allocated resources when data volume is small, thus reducing power consumption while maintaining sufficient data transmission capacity
Solution Approach 2:
The patent changes the transmission parameters dynamically by adjusting the number of resource blocks used based on the actual data size. The UE can flexibly modify the transmission resource allocation from the originally allocated set, adapting the transmission parameters to match the actual data volume and improving resource utilization efficiency
3Loss of energy
If uplink transmission skipping is implemented, then power efficiency is improved, but the complexity of transmission management increases
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously determine whether to skip uplink transmission based on its own data buffer status. The UE independently evaluates whether it has data to transmit and decides to skip or transmit without requiring network entity intervention, thereby improving power efficiency while avoiding the complexity of additional signaling and coordination mechanisms
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE). The techniques generally include receiving, from a network entity, a configuration for flexible uplink transmission skipping, selecting a reduced set of resources from a set of allocated resources, in accordance with the configuration, and transmitting a physical uplink shared channel (PUSCH) on the reduced set of resources.