UE Assistance Reporting for Power-Aware Uplink Scheduling

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Solution Overview

Problem

The gNB lacks sufficient information for optimal scheduling of uplink traffic, leading to suboptimal scheduling parameters and increased UE power consumption.

Innovation Solution

The UE provides assistance information to the gNB, including the number of information bits, transport block size, power level, and DRX configuration parameters, to facilitate optimal uplink scheduling and reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the gNB schedules uplink traffic without sufficient information, then scheduling decisions can be made quickly, but scheduling parameters are suboptimal and UE power consumption increases

Engineering Contradiction:

ImproveUE power consumptionVSAvoidscheduling information availability

Core Design Contradiction:

Use of energy by moving objectVSLoss of information

Solution Approach 1:

The UE performs preliminary actions by determining and transmitting assistance information about future data traffic before the gNB needs to make scheduling decisions. This includes predicting traffic patterns, calculating transport block sizes, and providing headroom information in advance, allowing the gNB to optimize scheduling parameters without real-time delays

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The UE provides beforehand cushioning by transmitting assistance information that cushions the gNB's scheduling decisions with predictive data about future traffic conditions. This includes providing buffered data information and power headroom reports that create a margin for optimal scheduling without requiring real-time measurements

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Productivity

If the UE transmits detailed assistance information, then scheduling optimization improves, but transmission overhead increases

Engineering Contradiction:

Improvescheduling optimizationVSAvoidinformation transmission overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The UE extracts only the most critical assistance information elements needed for scheduling optimization, such as transport block size predictions, power headroom values, and traffic pattern indicators. By selecting and transmitting only essential parameters rather than complete traffic data, the overhead is minimized while maintaining scheduling effectiveness

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The UE applies parameter changes by encoding assistance information in compact forms, using differential encoding for transport block sizes, and transmitting relative power headroom changes rather than absolute values. This reduces the bit representation requirements while preserving the scheduling-relevant information

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260025759A1Communication apparatus involved in transmitting assistance information

Publication Date: 2026.01.22 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

The present disclosure relates to a user equipment (UE) that comprises a processing circuitry, for determining assistance information to be transmitted to a base station. A transmitter transmits an assistance report to the serving base station comprising the determined assistance information. The assistance information indicates one or more of the following assistance information types: a number of information bits, to be transmitted by the UE to the serving base station; transport block size of a transport block to be used by the UE to transmit the information bits to the serving base station; a power level, indicating a minimum power to be used by the UE to transmit the information bits to the serving base station; one or more Discontinued Reception, DRX, configuration parameters to be used by the UE to operate a DRX mechanism.