Network Device Carrier Aggregation for LTE and CDMA HRPD Access
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Solution Overview
Problem
In existing intercommunication architectures between LTE and CDMA HRPD networks, user equipment can only implement data services in one system at a time, leading to underutilization of network resources and low data rates.
Innovation Solution
A method and network device configuration that allows user equipment to access and send/receive data in both networks simultaneously by determining the strongest signal network and setting up bearers based on QoS requirements and load conditions, enabling carrier aggregation without handover, thus optimizing resource utilization and increasing data rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user equipment switches between LTE and CDMA HRPD networks to access data services, then network coverage and accessibility are improved, but network resource utilization deteriorates and data rates are reduced
Solution Approach 1:
The patent combines LTE and CDMA HRPD networks into a unified carrier aggregation system, allowing user equipment to simultaneously access both networks. The network device aggregates carriers from both LTE and CDMA HRPD networks to form a combined data transmission channel, enabling parallel data services in both networks rather than switching between them. This resolves the contradiction by merging the two separate network access modes into a single integrated system that achieves both wide coverage and high data rates.
Solution Approach 2:
The network device is designed with multi-functionality to support both LTE and CDMA HRPD networks simultaneously. It can perform carrier aggregation across different network types, manage bearers in both networks, and dynamically allocate resources across LTE and CDMA HRPD carriers. This universal capability allows the system to maintain adaptability to different network conditions while maximizing productivity through simultaneous utilization of both network resources.
2Device complexity
If user equipment implements data services in only one network system at a time, then system complexity is reduced, but network resource utilization deteriorates
Solution Approach 1:
The network device automatically performs carrier aggregation and bearer management without requiring complex user equipment-side coordination. The network device itself handles the complexity of managing multiple network connections, selecting appropriate carriers, and establishing bearers in both LTE and CDMA HRPD networks. This self-service approach keeps user equipment simple while maximizing network resource utilization through intelligent network-side control.
3Productivity
If carrier aggregation is implemented between LTE and CDMA HRPD networks, then data rates are increased, but signaling procedures and system complexity increase
Solution Approach 1:
The patent extracts the complex signaling and coordination functions from the user equipment and concentrates them in the network device. The network device handles all carrier aggregation signaling, bearer setup coordination, and resource allocation decisions. This extraction reduces user equipment complexity and signaling overhead by centralizing control functions in the network side, allowing high data rates through carrier aggregation without proportionally increasing overall system complexity.
Data Source
AI summary
The present invention discloses a method for accessing s network system, including the following steps: receiving, by a first network device of a first network system, a measurement report of a second network system sent by a user equipment of the first network system; determining, by the first network device, a second network device in the second network system according to the measurement report; and sending, by the first network device, a bearer setup request to the second network device, for enabling the second network device to set up a connection with the user equipment. The present invention, by realizing aggregation between a two network systems, may dynamically schedule the resources of the two network systems according to loads of the two network systems, thereby provides load balancing with extremely high efficiency, and is capable of increase the peak data rate of the user effectively and remarkably.