Uplink Throughput via Double MIMO Transmission Chains
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Solution Overview
Problem
Current wireless communication devices face limitations in uplink throughput due to latency and reduced performance when switching between frequency bands, as defined by 3GPP standards, which can result in inefficient data transmission and reduced reliability.
Innovation Solution
Implementing a double multi-in multi-out (MIMO) configuration using multiple transmission chains on multiple frequency bands, either with or without switching, to concurrently transmit data on different frequency bands, thereby increasing uplink throughput and transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If switching between frequency bands is implemented according to 3GPP standards, then transmission flexibility is improved, but latency increases and uplink throughput deteriorates
Solution Approach 1:
The system pre-configures multiple transmission chains with different frequency band capabilities before transmission begins. When uplink throughput requirement exceeds a threshold, the device is already prepared to activate additional transmission chains without waiting for band switching, thus reducing latency while maintaining flexibility.
Solution Approach 2:
The system dynamically adjusts the number of active transmission chains based on real-time throughput requirements. When throughput requirement exceeds the threshold, additional transmission chains are activated; when below the threshold, fewer chains are used. This dynamic adaptation reduces unnecessary switching latency while maintaining transmission flexibility.
2Productivity
If multiple frequency bands are used for transmission, then uplink throughput is improved, but device complexity increases
Solution Approach 1:
The transmission system is segmented into multiple independent transmission chains, each capable of operating on different frequency bands. This segmentation allows the device to activate only the necessary number of chains (1 or 2) based on throughput requirements, improving uplink throughput when needed while avoiding the constant complexity of maintaining full multi-band capability active at all times.
Solution Approach 2:
The system changes the operational parameter of the number of active transmission chains based on throughput requirements. When throughput requirement exceeds the threshold, the system transitions from 1 to 2 active chains, utilizing multiple frequency bands to improve uplink throughput without permanently configuring the device for maximum complexity.
3Productivity
If concurrent transmission on multiple frequency bands is implemented, then uplink throughput is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts power consumption by activating additional transmission chains only when the uplink throughput requirement exceeds the threshold. During normal operation with lower throughput requirements, the device operates with fewer active chains, reducing power consumption. When high throughput is needed, the system transitions to using multiple chains concurrently, accepting increased power consumption only when necessary.
Solution Approach 2:
The operational parameter of the number of active transmission chains is changed based on throughput requirements. The system transitions between 1 and 2 active chains, which directly controls the power consumption level. This parameter change allows the device to achieve improved uplink throughput through multi-chain concurrent transmission only when the throughput benefit justifies the additional power consumption.
Data Source
AI summary
User equipment may include a transmitter coupled to an antenna to enable the user equipment to transmit data with a base station and/or the wireless communication network. In certain instances, the user equipment may operate in a double multi-in multi-out (MIMO) configuration with or without switching. In the double MIMO with switching configuration, the user equipment may transmit data via two antennas on a first frequency band and switch to transmit additional data via the two antennas on a second frequency band. In the double MIMO without switching configuration, the user equipment may concurrently transmit data via two antennas on a first frequency band and transmit second data via two additional antennas on a second frequency band. Additionally, the user equipment may operate in a PC1.5 configuration using high power via two or more antennas.