Group Communication Coverage Controller Network Switching
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Solution Overview
Problem
Broadband digital wireless communication systems often fail to provide reliable in-building wireless communication coverage, leading to disruptions in communication services for devices moving between outdoor and indoor areas.
Innovation Solution
A method that coordinates wireless coverage between broadband LTE networks and conventional narrowband analog wireless networks by using a Group Communication Coverage Controller (GCCC) to detect coverage loss and switch communication devices to prioritized channels on the analog network for uninterrupted group communication, optimizing channel selection based on location and traffic load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If broadband digital wireless communication systems are installed to replace conventional analog systems, then bandwidth and communication capacity are improved, but in-building coverage reliability deteriorates
Solution Approach 1:
The patent merges broadband digital wireless networks and conventional narrowband analog networks into a unified communication system. The Group Communication Coverage Controller (GCCC) coordinates both network types, allowing communication devices to access services through either network depending on coverage availability. This combination resolves the contradiction by preserving the high bandwidth advantages of broadband networks while incorporating the reliable in-building coverage of analog networks.
Solution Approach 2:
The Group Communication Coverage Controller (GCCC) acts as an intermediary between the broadband and narrowband networks. It receives group communication requests, determines appropriate channels based on device location and network coverage, and coordinates switching between networks. This intermediary mechanism enables seamless transition between broadband and analog networks, ensuring continuous reliable communication while maintaining access to high bandwidth capabilities.
2Reliability
If communication devices switch between broadband and analog networks to maintain coverage, then connection reliability is improved, but network coordination complexity increases
Solution Approach 1:
The communication devices perform self-service by automatically detecting their own network coverage status and autonomously switching between broadband and analog networks without requiring manual intervention. The device monitors its connection state, determines when a network switch is needed, and executes the transition based on instructions from the GCCC, thereby maintaining connection reliability while minimizing coordination complexity.
Solution Approach 2:
The system implements feedback mechanisms where the GCCC receives location information and coverage status from communication devices, processes this feedback to determine optimal network channels, and adjusts channel assignments accordingly. This closed-loop feedback system enables dynamic adaptation to changing network conditions, ensuring reliable connections while simplifying the coordination process through automated decision-making.
3Duration of action of moving object
If multiple channels are provided for group communication on analog networks, then communication continuity is improved, but channel selection difficulty increases
Solution Approach 1:
The GCCC performs preliminary action by pre-determining and providing a set of available channels to communication devices before coverage loss occurs. The controller calculates which channels will maintain group communication continuity based on predicted device movement and network coverage, then notifies devices of these pre-selected channels. This advance preparation eliminates the need for real-time channel selection difficulty, ensuring continuous communication as devices move between networks.
Data Source
AI summary
A method for coordinating wireless coverage between a first wireless network and a second wireless network for a communication device, wherein the communication device performs the method, which includes: detecting wireless coverage by the first wireless network; affiliating to a communication group to become a member of the communication group; receiving, from an infrastructure device coupled to the first wireless network, a set of channels on the second wireless network for the communication group, wherein the set of channels is determined based on the location of members of the communication group; detecting a loss of coverage in the first wireless network of at least one member of the communication group; and, responsive to detecting the loss of coverage, switching to a channel in the set of channels on the second wireless network for communications for the communication group.