Congestion-Based Scheduling for Mixed-Antenna User Devices
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Solution Overview
Problem
In small devices like wearables, incorporating four receive antennas is not feasible, leading to reduced network capacity and spectral efficiency when two antennas are used in frequency bands requiring four, without mechanisms for network operators to allow access.
Innovation Solution
A method for congestion-based scheduling in a network that prioritizes downlink transmissions based on device capabilities, where devices with two receive antennas are managed to minimize network impact by prioritizing those with four receive antennas during congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If four receive antennas are used in frequency bands requiring four antennas, then network capacity and spectral efficiency are improved, but device complexity and size increase
Solution Approach 1:
The system dynamically adjusts scheduling priorities based on real-time network conditions and device capabilities. The network operator can flexibly prioritize transmissions to devices with four receive antennas when network capacity is critical, while allowing devices with two receive antennas to access the network when conditions permit, creating a dynamic adaptation mechanism that resolves the contradiction between network performance and device constraints
Solution Approach 2:
The invention changes the parameter of transmission prioritization based on device antenna capabilities and network conditions. By modifying scheduling parameters rather than physical device structure, the system can optimize network capacity for four-antenna devices when needed while still permitting access for two-antenna devices, resolving the contradiction without increasing device complexity
2Adaptability or versatility
If devices with two receive antennas are allowed to access frequency bands requiring four antennas, then device accessibility is improved, but network capacity and spectral efficiency deteriorate
Solution Approach 1:
The scheduling mechanism dynamically adjusts based on network congestion levels and device capabilities. When network capacity is sufficient, devices with two receive antennas are allowed access. When network capacity becomes critical, the system dynamically prioritizes four-antenna devices, creating a flexible adaptation that balances accessibility with network performance
Solution Approach 2:
The network operator receives capability information from devices and autonomously makes scheduling decisions based on current network conditions. The system self-adjusts transmission priorities without requiring external intervention, allowing two-antenna devices to access the network when appropriate while automatically protecting network capacity when needed
3Reliability
If four receive antennas are used, then signal to noise ratio and reference sensitivity are improved, but device size and complexity increase
Solution Approach 1:
The system changes the parameter of transmission scheduling based on device antenna capabilities rather than requiring physical modification of devices. By adjusting network-side parameters (scheduling priority, resource allocation) based on device characteristics, the system allows small devices with two antennas to access the network while maintaining reliable communication for four-antenna devices when conditions permit
Data Source
AI summary
Methods and systems for providing congestion-based scheduling in a network, based on device capabilities are provided. A method begins with receiving, from a first user device, a device capability message, wherein the device capability message comprises a number of receive antennas of the first user device for each supported frequency band. Next, a determination that the number of receive antennas of the first user device is not equal to the number of receive antennas required by the network operator for the assigned frequency band. Based on the determining, the method continues with prioritizing at least one downlink transmission to at least one second user device. The at least one second user device comprises the number of receive antennas required by the network operator for the assigned frequency band. The prioritization information is then transmitted to the first user device and the at least one second user device.