Heterogeneous Network Cooperation via Base Station Mediation
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Solution Overview
Problem
Current wireless communication systems lack a method for enabling cooperative operations between heterogeneous networks, such as cellular and WLAN, which hinders efficient signal transmission and reception due to the lack of organized cooperation between networks with different features.
Innovation Solution
A method for detecting base stations in a wireless communication system that involves receiving interworking signals from one type of base station through another, acquiring cell ID information, and scanning for base stations using the same wireless communication scheme, allowing for reporting of measurement results to the second type base station, thereby facilitating cooperative operations between heterogeneous networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-mode user equipment accesses multiple heterogeneous networks to transmit and receive signals, then service quality and throughput are improved, but device complexity and network coordination requirements increase
Solution Approach 1:
The patent introduces a serving base station as an intermediary that coordinates communications between heterogeneous user equipment and non-serving base stations. The serving base station receives indication information from other base stations and manages the complex interactions, thereby improving throughput while preventing device complexity from becoming unmanageable.
Solution Approach 2:
The patent enables user equipment to support multiple wireless access systems (WiFi, WiMAX, cellular networks) simultaneously, allowing a single device to function across multiple heterogeneous networks. This multi-functionality approach improves overall system productivity by utilizing available networks while the serving base station manages the complexity.
2Productivity
If organized cooperation between cellular network and wireless LAN is implemented, then communication efficiency is improved, but system complexity and coordination overhead increase
Solution Approach 1:
The serving base station acts as a mediator that receives indication information from non-serving base stations and coordinates the cooperative operations. This intermediary approach enables organized cooperation between cellular and WLAN networks while centralizing the complexity management at the base station level rather than distributing it across all network elements.
Solution Approach 2:
The patent implements feedback mechanisms where user equipment reports measurement results to the serving base station, and base stations exchange indication information. This feedback loop enables coordinated operations between heterogeneous networks while maintaining manageable system complexity through structured information flow and centralized control.
3Measurement precision
If user equipment detects and scans for base stations in heterogeneous networks, then network selection accuracy is improved, but detection time and energy consumption increase
Solution Approach 1:
The patent enables user equipment to acquire indication information from the serving base station that contains pre-filtered information about detectable base stations in heterogeneous networks. This preliminary action allows the device to focus its detection efforts on relevant targets, improving detection accuracy while reducing the time and energy required compared to scanning all possible networks.
Data Source
AI summary
The present invention relates to a method for performing a cooperative operation between heterogeneous networks and a device for same. A method for a first type base station to perform a cooperative operation between heterogeneous networks in a wireless communication system includes receiving a downlink synchronization channel from at least one second type base station; obtaining an identifier (ID) of the second type base station by using the received downlink synchronization channel; and transmitting at least one of a channel number and a bandwidth of a center frequency of the first type base station and the cell ID of the second type base station to a server. The first type base station and the second type base station use different wireless communication methods or wireless access methods.