Terminal Uplink Throughput via Asymmetric Transmission Parameters
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Solution Overview
Problem
Current future radio systems face limitations in improving uplink throughput due to increased cost, size, and power consumption, as well as reduced coverage, particularly with technologies like MIMO and Carrier Aggregation, which also affect terminal capabilities and communication range.
Innovation Solution
The solution involves a terminal that applies a different transmission parameter for uplink transmission compared to downlink reception, allowing for optimized beam control and frequency band configuration to enhance uplink throughput without affecting downlink operations, thereby improving communication efficiency and range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MIMO and Carrier Aggregation technologies are applied to improve uplink throughput, then uplink data rate is improved, but terminal cost, size, and power consumption increase
Solution Approach 1:
The patent applies parameter changes by using different transmission parameters for uplink than those used for downlink reception. Specifically, the terminal applies a second transmission parameter for uplink transmission that differs from the first transmission parameter corresponding to the downlink reception parameter, allowing optimization of uplink performance without requiring complex MIMO or Carrier Aggregation technologies that increase power consumption.
2Productivity
If MIMO and Carrier Aggregation technologies are applied to improve uplink throughput, then uplink data rate is improved, but terminal size and cost increase
Solution Approach 1:
The patent avoids increasing terminal complexity by not adopting complex MIMO or Carrier Aggregation technologies. Instead, it achieves improved uplink throughput through parameter changes - applying different transmission parameters for uplink transmission compared to downlink reception, specifically using a second transmission parameter that is different from the first transmission parameter used for downlink.
3Productivity
If transmission parameters are optimized for uplink, then uplink throughput is improved, but downlink reception performance may be affected
Solution Approach 1:
The patent applies segmentation by separating the transmission parameters for uplink from those used for downlink reception. The control section applies a second transmission parameter specifically for uplink transmission, which is different from the first transmission parameter corresponding to downlink reception. This segmentation allows independent optimization of uplink parameters without affecting downlink reception performance.
Data Source
AI summary
A terminal, as disclosed, includes: a processor that controls a beam used for transmission of a sounding reference signal (SRS) in accordance with presence or absence of a configuration of a spatial domain parameter for the SRS; and a transmitter that transmits the SRS using the beam. The processor respectively uses different beams for a plurality of resources for the SRS when the spatial domain parameter is not configured. Or the processor uses a fixed beam for a plurality of resources for the SRS when the spatial domain parameter is not configured. In other aspects, a communication method and a system are also disclosed.