Wireless Device Performance Control in Heterogeneous Networks
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Solution Overview
Problem
In heterogeneous networks, the limited availability of licensed spectrum in cellular networks leads to reduced performance for mobile devices due to the need to conserve wireless resources, which can negatively impact data transfer rates and quality of service.
Innovation Solution
A node in the network adjusts the amount of data transmitted from a cellular base station and a wireless access point based on performance criteria, such as data transfer rates, error rates, and quality of service, to optimize the communication channel performance between the wireless device and the access point, ensuring that the combined data amounts satisfy the performance criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If cellular networks reduce usage of licensed spectrum to conserve wireless resources, then resource conservation is improved, but mobile device performance deteriorates
Solution Approach 1:
The patent combines cellular network and wireless access point transmissions into a coordinated multi-point system. The base station and access point work together as a unified transmission system, where the access point provides additional transmission resources without requiring additional licensed spectrum from the cellular network, thereby maintaining device performance while conserving cellular spectrum resources.
Solution Approach 2:
The wireless access point acts as an intermediary between the cellular base station and the mobile device. It receives data from the base station and transmits it to the device, providing an additional communication path that relieves pressure on the licensed spectrum while maintaining overall system performance.
2Productivity
If cellular networks increase data transmission to improve mobile device performance, then mobile device performance is improved, but licensed spectrum usage increases
Solution Approach 1:
The patent introduces a spatial dimension to data transmission by adding wireless access points at different physical locations. Instead of increasing transmission power or spectrum usage in the same dimension, the system adds transmission paths from different spatial positions, thereby increasing data transfer rates without proportionally increasing licensed spectrum consumption.
Solution Approach 2:
The system merges cellular and wireless access point transmissions into a coordinated multi-point system. By combining resources from both networks, the system achieves higher data transfer rates while the cellular portion maintains efficient licensed spectrum usage.
3Productivity
If coordinated multi-point transmission is implemented to improve performance, then data transfer rate is improved, but system complexity increases
Solution Approach 1:
The system implements feedback mechanisms where the base station receives information about access point transmissions and device channel conditions. This feedback enables dynamic adjustment of transmission parameters and coordination between base station and access point, optimizing data transfer rates while managing system complexity through adaptive control.
Data Source
AI summary
A method of controlling performance of a wireless device is performed by a node that is in electronic communication with a cellular network. The node includes a processor, a non-transitory memory, and a network interface. The method includes receiving a performance value characterizing a performance of a communication channel between a wireless device and a wireless access point. In some implementations, the wireless device and the cellular network are associated with different radio access technologies (RATs). The method includes determining whether the performance value breaches a performance criterion for the wireless device. The method includes adjusting a first amount of data transmitted to the wireless device from a base station of the cellular network and a second amount of data transmitted to the wireless device from the wireless access point. In some implementations, the combined first and second amounts of data satisfy the performance criterion for the wireless device.