PUSCH Transmission Dropping via RRC Parameters

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Solution Overview

Problem

Current communication systems in LTE and New Radio (NR) face inefficiencies in managing PUSCH transmission and reception across multiple serving cells, particularly in determining whether to drop transmission or reception based on RRC parameters for SS/PBCH blocks, which affects communication efficiency.

Innovation Solution

A terminal apparatus and base station apparatus are designed with physical layer processing units and RRC layer processing units that utilize first and second RRC parameters to determine whether to drop PUSCH transmission or reception, respectively, based on the mapping of SS/PBCH blocks to specific frequency positions in serving cells, optimizing communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the terminal apparatus and base station apparatus manage PUSCH transmission and reception across multiple serving cells using RRC parameters for SS/PBCH blocks, then communication efficiency is improved, but the complexity of determining whether to drop transmission or reception increases

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidcomplexity of determining whether to drop PUSCH

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by introducing specific RRC parameters (firstRRCparameter and secondRRCparameter) that indicate whether PUSCH transmission should be dropped when SS/PBCH block transmission occurs. By changing the parameter structure to include explicit drop indication flags, the system resolves the complexity of determining transmission behavior while maintaining high communication efficiency through automated parameter-based decision making.

Inventive Principle:

Principle #35Parameter changes

2Loss of energy

If the physical layer processing unit determines whether to drop PUSCH transmission based on RRC parameters, then resource allocation is optimized, but the processing complexity at the physical layer increases

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoidprocessing complexity at physical layer

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-configuring the RRC parameters (firstRRCparameter and secondRRCparameter) at the RRC layer before PUSCH transmission decisions are made. The RRC layer performs the preliminary configuration of drop indication parameters, which then guide the physical layer processing unit's transmission decisions. This shifts complexity to the higher layer configuration stage, simplifying the real-time physical layer processing while maintaining optimized resource allocation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250097934A1Terminal apparatus, base station apparatus, and communication method

Publication Date: 2025.03.20 SHARP KK

AI summary

An apparatus includes a physical layer processing unit configured to transmit a PUSCH, and an RRC layer processing unit configured to provide the physical layer processing unit with a first RRC parameter for a first SS/PBCH block mapped to a first frequency position in a serving cell and a second RRC parameter for a second SS/PBCH block mapped to a second frequency position in the serving cell. The physical layer processing unit determines whether or not to drop transmission of the PUSCH, based on the first RRC parameter and the second RRC parameter.