Dynamic RF Threshold Configuration for Cell-Edge Coverage
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Solution Overview
Problem
Existing wireless communications systems face challenges with static RF thresholds that reduce network coverage, increase power consumption, and degrade UE performance, particularly near the cell edge.
Innovation Solution
Implementing multiple types of RF thresholds, including in-band and out-of-band performance thresholds, with dynamic or semi-static switching mechanisms, allowing UEs to adjust transmit power and PA parameters based on location, cell load, and communication priorities, coordinated by network entities to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE adjusts RF configuration parameters (reducing transmit power, setting PA bias/current values) to satisfy in-band and out-of-band performance thresholds, then RF performance requirements are met, but network coverage near cell edge is reduced
Solution Approach 1:
The patent implements dynamic RF threshold configuration where the network entity can switch between multiple types of RF thresholds (e.g., first type with stricter thresholds, second type with relaxed thresholds) based on UE location and network conditions. This allows the system to adapt RF requirements dynamically, enabling better coverage near cell edges while maintaining performance where needed.
Solution Approach 2:
The patent applies different RF threshold types to different locations or conditions within the network. The network entity determines which threshold type to apply based on UE location, cell load, and communication priorities, creating localized optimization of RF parameters rather than applying uniform standards across the entire network.
2Reliability
If a UE adjusts RF configuration parameters to satisfy performance thresholds, then communication quality is improved, but power consumption increases
Solution Approach 1:
The system dynamically selects between different RF threshold types based on current network conditions and UE requirements. When strict performance thresholds are not critical, the network can allow UEs to operate with relaxed thresholds, reducing power consumption while maintaining acceptable communication quality.
Solution Approach 2:
The patent changes the threshold parameters dynamically by switching between different RF threshold types. This allows the system to adjust the balance between communication quality requirements and power consumption based on network conditions, UE location, and priority levels.
3Reliability
If a UE adjusts RF configuration parameters to satisfy performance thresholds, then signal quality is improved, but uplink throughput is degraded
Solution Approach 1:
The network entity dynamically switches between different RF threshold types based on current network conditions and UE requirements. When uplink throughput is critical, the system can apply relaxed thresholds that allow higher transmit powers, thereby improving throughput while maintaining acceptable signal quality through coordinated network-UE operation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may support multiple different types of radio frequency (RF) thresholds, where a type of RF thresholds includes at least an in-band performance threshold and an out-of-band performance threshold. A network entity may determine a type of RF thresholds for the UE based on the UE's location within a cell of the network entity, cell load information for the cell, distributions of UEs or scheduled communications within the cell, or some combination of these or other parameters. The network entity may dynamically or semi-statically configure the UE with the type of RF thresholds. The UE may select an RF configuration based on the configured type of RF thresholds and may communicate using the RF configuration. The communications may satisfy the in-band and out-of-band performance thresholds based on the UE's RF configuration.