Multi-Panel PUSCH Resource Allocation With Single DCI
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Solution Overview
Problem
Existing 5G wireless communication technologies do not support efficient simultaneous transmission of multiple Physical Uplink Shared Channels (PUSCHs) using multiple user equipment (UE) antenna panels, limiting data transmission capabilities.
Innovation Solution
Implementing a single downlink control information (DCI) for resource allocation that enables simultaneous transmission of multiple PUSCHs using multiple UE antenna panels, allowing for transmission schemes such as single TB without repetition, single TB with repetition, or multiple TBs, based on UE capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUSCHs are transmitted simultaneously using multiple UE antenna panels, then data transmission efficiency and throughput are improved, but device complexity increases due to the need for single DCI resource allocation and multiple transmission schemes
Solution Approach 1:
The patent segments the uplink transmission into multiple PUSCHs that can be transmitted simultaneously from different UE antenna panels. Each PUSCH can carry different TBs or repetitions, allowing parallel data transmission across spatial domains. This segmentation enables the system to achieve higher throughput while managing complexity through structured resource allocation.
Solution Approach 2:
The single DCI structure is designed to be universal, capable of scheduling multiple PUSCHs with different transmission schemes (single TB without repetition, single TB with repetition, or multiple TBs) across multiple antenna panels. This multi-functional DCI design simplifies the control mechanism while supporting diverse transmission scenarios, thereby improving productivity without proportionally increasing device complexity.
2Loss of time
If single DCI is used for resource allocation of multiple PUSCHs, then control signaling efficiency is improved, but measurement precision requirements increase for accurate resource allocation and transmission scheme selection
Solution Approach 1:
The patent incorporates preliminary configuration information in the DCI that pre-specifies resource allocation details and transmission schemes before the actual transmission occurs. This preliminary action allows the UE to prepare multiple PUSCH transmissions in advance based on the single DCI instruction, reducing control signaling time while maintaining precise resource allocation through pre-established parameters.
Solution Approach 2:
The DCI includes parameter fields that can be dynamically adjusted to accommodate different transmission schemes (single TB without repetition, single TB with repetition, or multiple TBs). By changing these parameters based on UE capability and channel conditions, the system achieves efficient resource allocation with a single DCI, balancing control signaling efficiency with the precision needed for accurate transmission.
3Adaptability or versatility
If multiple transmission schemes are supported based on UE capability, then adaptability is improved, but device complexity increases due to capability assessment and scheme selection
Solution Approach 1:
The patent implements a dynamic transmission scheme selection mechanism where the base station chooses from multiple possible schemes (single TB without repetition, single TB with repetition, or multiple TBs) based on real-time UE capability assessment and channel conditions. This dynamic adaptation allows the system to be highly versatile while managing complexity through algorithmic decision-making rather than hardware complexity.
Solution Approach 2:
The patent uses capability indication information as a template or copy that the base station references to determine the appropriate transmission scheme. Instead of complex capability assessment algorithms, the system uses pre-defined capability indicators that map to specific transmission schemes, simplifying the management of adaptability while maintaining versatility across different UE types.
Data Source
AI summary
Methods and apparatuses for using a single downlink control information (DCI) and supporting simultaneous transmission simultaneous Physical Uplink Shared Channels (PUSCHs) using multiple user equipment (UE) antenna panels are described. In some embodiments, a baseband processor is configured to perform operations comprising: receiving an RRC configuration information from a base station, wherein the RRC configuration information comprises an uplink transmission scheme using multiple antenna panels for transmitting multiple PUSCHs simultaneously using the plurality of the UE antenna panels, wherein the uplink transmission scheme using multiple antenna panels comprises transmission of a single transport block (TB) without repetition, transmission of a single TB with repetition, or transmission of a plurality of TBs, based on a user equipment (UE) capability; receiving a single downlink control information (DCI) that specifies an uplink resource allocation for a plurality of Physical Uplink Shared Channels (PUSCHs); and transmitting the plurality of PUSCHs.