SRS Power Scaling and Layer Virtualization for Multi-Resource Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission power and precoding for multi-resource transmission, particularly with wireless devices having more than 4 transmission ports, leading to suboptimal power distribution and precoding methods that do not fully utilize the potential of multiple antenna chains.
Innovation Solution
The system configures multiple SRS resources with distinct precoders for each resource set, allowing for unequal power distribution and virtualization of transmission layers across antenna ports, enabling coherent or non-coherent mapping and codeword transmission on different sets of layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple SRS resources are configured with distinct precoders for multi-resource transmission, then precoding efficiency and power utilization are enhanced, but device complexity and configuration overhead increase
Solution Approach 1:
The transmission resources are segmented into multiple SRS resource sets, where each set can be independently configured with its own precoder and power parameters. This segmentation allows the system to manage complexity by dividing the overall transmission configuration into smaller, manageable units that can be optimized independently.
Solution Approach 2:
The patent implements dynamic power scaling and allocation across multiple SRS resources based on channel conditions, device capabilities, and network requirements. The power distribution and precoder selection are dynamically adjusted rather than fixed, allowing the system to adapt to changing conditions while maintaining optimal performance.
2Ease of manufacture
If power is distributed equally across multiple antenna ports, then implementation is simplified, but power utilization efficiency deteriorates
Solution Approach 1:
Instead of uniform power distribution, the patent applies local quality by allocating different power levels to different SRS resources and antenna ports based on their specific channel conditions, importance, and performance requirements. Each resource receives optimized power allocation tailored to its local characteristics rather than a blanket equal distribution.
Solution Approach 2:
The system changes the power parameter dynamically across different SRS resources and time instances. Power scaling factors and allocation ratios are adjusted as parameters to optimize efficiency, allowing the system to transition from static equal power distribution to dynamic optimized power distribution.
3Quantity of substance
If the number of transmission layers is increased beyond 4 ports, then transmission capacity is improved, but power distribution optimization becomes more difficult
Solution Approach 1:
Transmission layers are organized into multiple SRS resource sets, with each set containing a manageable number of antenna ports and layers. This segmentation allows the system to handle high-dimensional MIMO (beyond 4 ports) by dividing the large number of layers into smaller groups that can be independently configured and optimized.
Solution Approach 2:
The system dynamically adjusts the number of active layers and their power distribution based on channel conditions, device capabilities, and network requirements. Rather than fixing the layer configuration, the system can adaptively activate or deactivate layers and adjust power allocation to optimize capacity while managing complexity.
Data Source
AI summary
A method, system and apparatus are disclosed. According to embodiments, a wireless device is configured to receive a first indication of a first precoder for use with a first antenna port signal set that carries a first portion of a physical channel and is associated with a first SRS resource of the plurality of SRS resources, receive a second indication of a second precoder for use with a second antenna port signal set that carries a second portion of the physical channel and is associated with a second SRS resource of the plurality of SRS resources, adjust the first and second physical channel portion according to the first and second indications, forming a first and second signal power, each antenna port signal in the first antenna port signal set is adjusted by a number of antenna ports of the first antenna port signal set with NZP.