Wireless Communication Resource Allocation Flexibility

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Solution Overview

Problem

Existing wireless communication systems, such as LTE and emerging New Radio (NR) systems, face limitations in communication flexibility and efficiency, particularly in managing multiple cells and scenarios like enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC).

Innovation Solution

The proposed solution involves a wireless communication system that utilizes OFDM (Orthogonal Frequency Division Multiplexing) with CP-OFDM in downlink and either CP-OFDM or DFT-s-OFDM in uplink. This system configures a resource grid with adjustable subcarrier spacing, number of OFDM symbols, and CP configuration, allowing for flexible resource allocation and management across multiple cells and scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed communication structure is used, then system simplicity is maintained, but communication flexibility and efficiency are limited

Engineering Contradiction:

Improvecommunication flexibilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic resource allocation where the base station configures different resource allocation types (first type with one DMRS port, second type with two DMRS ports) based on communication conditions. The terminal device adapts its receiving operations according to the configured type, enabling flexible adjustment of system behavior to match communication requirements while maintaining structured operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes key parameters including the number of DMRS ports (1 or 2), resource allocation patterns, and receiving operation configurations based on communication scenario requirements. These parameter variations allow the system to optimize performance for different services (eMBB, mMTC, URLLC) without fundamentally altering the communication structure.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If resource allocation is optimized for specific scenarios, then scenario performance improves, but overall system adaptability decreases

Engineering Contradiction:

Improvescenario performanceVSAvoidsystem adaptability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal resource allocation framework that can serve multiple communication scenarios (eMBB, mMTC, URLLC) through a single configurable system. The base station selects appropriate resource allocation types based on the required service, allowing the same physical downlink shared channel structure to fulfill different functional requirements with optimized performance for each scenario.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12273869B2User equipments, base stations, and methods

Publication Date: 2025.04.08 SHARP KK

AI summary

Terminal device receives a first PDCCH triggering Type-3 HARQ-ACK codebook and not scheduling a PDSCH; transmits a PUCCH indicated by the PDCCH; wherein in a case that the PDCCH does not indicate a SPS release, a processing time from the PDCCH to the PUCCH is set to a first value, and in a case that the PDCCH indicates a SPS release, the processing time is set to a second value that is larger than the first value.