UE PUSCH Multi-Slot Frequency Hopping for Flexible NR Uplink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems lack flexibility and efficiency in communication structures, particularly in the context of the 3GPP's LTE and New Radio (NR) standards, which fail to optimize communication for enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC).
Innovation Solution
The implementation of frequency hopping for PUSCH transmission in multiple slots, based on RRC parameters such as pusch-RepTypeA, interSlot, and interRepetition, enhances communication flexibility and efficiency by optimizing the use of OFDM symbols and CP configurations in resource grids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed communication structure is used in LTE and NR standards, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent implements dynamic communication structures by enabling flexible slot configurations where the number of slots per subframe, subcarriers per resource block, and OFDM symbol arrangements can be dynamically adjusted based on traffic requirements. This allows the system to adapt between different numerologies (subcarrier spacings) and slot formats, transforming the rigid fixed structure into a dynamic one that can optimize for eMBB, mMTC, or URLLC scenarios as needed.
Solution Approach 2:
The patent changes key communication parameters including subcarrier spacing (15kHz, 30kHz, 60kHz, 120kHz), number of slots per subframe (1, 2, 4, 8), and cyclic prefix lengths to optimize performance for different service types. By allowing these parameters to be configurable and changeable, the system achieves greater adaptability without requiring complete structural redesign.
2Productivity
If traditional resource allocation methods are used, then system simplicity is maintained, but resource allocation efficiency is insufficient for diverse scenarios
Solution Approach 1:
The patent segments the resource grid into flexible units where slots can be divided into different numbers of subslots, and resource blocks can be allocated at different granularities depending on the service type. This segmentation allows efficient resource allocation for both large eMBB packets and small URLLC packets by allocating resources at appropriate scales without requiring complex reconfiguration of the entire resource structure.
Solution Approach 2:
The patent creates a universal resource allocation framework that can handle multiple service types (eMBB, mMTC, URLLC) using the same basic resource grid structure. By making the slot and resource block configurations universal and adaptable rather than creating separate structures for each service type, the system achieves high allocation efficiency across diverse scenarios while avoiding unnecessary complexity.
3Reliability
If fixed slot configurations are used, then system complexity is reduced, but communication performance for URLLC and eMBB scenarios is not optimized
Solution Approach 1:
The patent implements dynamic slot configurations where the number of slots per subframe and the structure within each slot can be adjusted based on service requirements. For URLLC, shorter slot durations can be configured to reduce latency, while for eMBB, longer slots with more resource blocks can be allocated to increase throughput. This dynamic adaptability optimizes communication performance for different scenarios.
Solution Approach 2:
The patent changes slot configuration parameters including subcarrier spacing (affecting slot duration), number of slots per subframe, and cyclic prefix lengths to optimize for different service types. These parameter changes enable the system to achieve high reliability for URLLC through shorter transmission time intervals while maintaining efficient resource utilization for eMBB through longer, more densely packed slots.
Data Source
AI summary
A user equipment (UE) is described. The UE may comprise high-layer processing circuit configured to acquire a first RRC parameter, a second RRC parameter, a third RRC parameter, and a fourth RRC parameter, and transmission circuity configured to transmit a PUSCH in multiple slots.