Uplink Shared Channel Full Power Transmission Control
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Solution Overview
Problem
In next-generation mobile communication systems, specifically in NR, there is a lack of explicit standards for controlling full power transmission in user equipment (UE) that support multiple power amplifiers and different transmission modes, leading to inadequate coverage and communication throughput.
Innovation Solution
A terminal with a control section that determines whether to perform uplink shared channel transmission at full power using an antenna selection TPMI precoder, based on reported full power transmission modes and TPMI groups, and a transmitting section that executes this transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If UE capability 2 or 3 is configured to operate in mode 1 or mode 2 for full power transmission, then full power transmission capability is improved, but the control mechanism for determining whether to perform full power transmission is insufficient
Solution Approach 1:
The patent applies preliminary action by having the UE report its full power transmission mode capability (mode 1 or mode 2) and supported TPMI groups to the base station in advance. The base station then uses this pre-reported information to determine whether to schedule antenna selection TPMI precoders, enabling full power transmission without requiring complex real-time control mechanisms.
2Adaptability or versatility
If antenna selection TPMI precoder is used for uplink shared channel transmission, then transmission flexibility is improved, but coverage and communication throughput decrease due to inability to perform full power transmission
Solution Approach 1:
The patent implements feedback by having the UE report its full power transmission mode capability and supported TPMI groups to the base station. The base station uses this feedback information to make informed scheduling decisions, selecting antenna selection TPMI precoders only when they can operate at full power, thereby maintaining both transmission flexibility and reliable coverage.
3Ease of manufacture
If explicit standards for controlling full power transmission are not provided, then standardization simplicity is improved, but UE unable to perform full power transmission properly
Solution Approach 1:
The patent applies segmentation by dividing the full power transmission control into distinct components: (1) UE capability reporting (full power transmission mode and supported TPMI groups), (2) Base station scheduling decision based on reported capabilities, and (3) UE execution of transmission according to scheduled precoders. This segmented approach provides clear operational guidance while maintaining standardization simplicity.
Data Source
AI summary
A terminal according to an aspect of the present disclosure includes a control section that determines whether or not to perform uplink shared channel transmission for an antenna selection TPMI precoder at full power on the basis of a reported full power transmission mode to be supported and a reported transmitted preceding matrix indicator (TPMI) group, and a transmitting section that performs the uplink shared channel transmission using the antenna selection TPMI precoder. According to one aspect of the present disclosure, it is possible to control full power transmission appropriately.