Transport Block Scheduling for Slot Aggregation Throughput

Solution Overview

Problem

In next-generation mobile communication systems, the lack of understanding on optimal scheduling policies for slot and non-slot aggregation hinders flexible control and can lead to decreased communication throughput and spectral efficiency.

Innovation Solution

The proposed solution involves a transmitting apparatus that schedules signals in multiple time units based on downlink control information and determines transport block sizes to optimize communication, employing different configurations for DMRS patterns and precoders to enhance channel estimation and coding efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If slot aggregation or non-slot aggregation is used in next-generation mobile communication systems, then scheduling flexibility is improved, but communication throughput and spectral efficiency deteriorate due to lack of optimal scheduling policies

Engineering Contradiction:

Improvescheduling flexibilityVSAvoidcommunication throughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent changes the parameter of transport block size determination by introducing a new approach: when slot aggregation or non-slot aggregation is detected, the system determines TBS based on the total number of resource elements across all aggregated slots rather than per-slot TBS determination. This parameter change resolves the contradiction by maintaining scheduling flexibility while improving communication throughput and spectral efficiency through optimized resource utilization.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If slot aggregation or non-slot aggregation is used, then scheduling flexibility is improved, but spectral efficiency deteriorates due to lack of optimal scheduling policies

Engineering Contradiction:

Improvescheduling flexibilityVSAvoidspectral efficiency

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent changes the parameter of transport block size determination by introducing a new approach: when slot aggregation or non-slot aggregation is detected, the system determines TBS based on the total number of resource elements across all aggregated slots rather than per-slot TBS determination. This parameter change resolves the contradiction by maintaining scheduling flexibility while improving communication throughput and spectral efficiency through optimized resource utilization.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11751214B2Apparatus and system to create a transport block utilizing an input apparatus

Publication Date: 2023.09.05 NTT DOCOMO INC

AI summary

According to one aspect of the present invention, an apparatus is disclosed including a transmitter that transmits a transport block (TB) using a physical uplink shared channel based on a downlink control information, a processor that applies a same symbol allocation across a plurality of slots when transmission of the TB is carried out over the plurality of slots, and an input apparatus that accepts an input, wherein the TB contains information based on the input. In other aspects, a system including an apparatus and a base station is also disclosed.