Tunneling Link Access Control Processor for Circuit Switched Event Notification
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Solution Overview
Problem
Current cellular communication systems experience latency and overhead when notifying a mobile station of an incoming call over a packetized data radio link, as they replicate unnecessary circuit switched protocol layers, wasting time and processing resources.
Innovation Solution
A dual mode mobile station apparatus with a packetized data modem and internetworking interface that encapsulates and decapsulates only essential sub-layers of the link access control layer, eliminating non-essential processing and latencies by using a tunneling link access control processor to notify the mobile station of circuit switched events over a packetized data network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all layered data including timing and radio environment provisions are encapsulated over the packetized data network, then the mobile station can be notified of the call, but the processing time and overhead increase significantly
Solution Approach 1:
The patent extracts only the essential call notification data from the complete layered protocol, separating it from non-essential timing and radio environment provisions. This allows the mobile station to receive critical call information over the packetized data network without processing unnecessary protocol overhead, thereby reducing processing time while maintaining notification reliability.
Solution Approach 2:
The patent segments the link access control layer into essential sub-layers for call notification and non-essential sub-layers for timing and radio environment management. By processing only the essential segments over the packetized network and maintaining non-essential processing locally, the system reduces overall processing time while ensuring reliable call notification.
2Reliability
If hardware processes all circuit switched protocol layers over the packetized data network, then complete protocol compliance is achieved, but processing resources are wasted
Solution Approach 1:
The patent extracts only the essential protocol requirements needed for call notification over the packetized data network, removing the need to replicate all circuit switched protocol layers in hardware. This maintains minimal protocol compliance for notification while eliminating wasteful processing of complete protocol stacks.
Solution Approach 2:
Instead of processing all protocol layers (excessive action), the patent implements partial processing of only the essential sub-layers required for call notification. This partial action approach maintains sufficient protocol compliance for reliable notification while significantly improving processing efficiency by avoiding unnecessary layer processing.
3Reliability
If the mobile station replicates circuit switched link processing over the packetized data link, then notification can be sent, but battery life is reduced
Solution Approach 1:
The patent extracts only the essential notification processing requirements from the complete circuit switched protocol stack, enabling the mobile station to send notifications over the packetized data network without replicating all energy-intensive protocol processing. This maintains notification capability while significantly reducing power consumption.
Solution Approach 2:
The patent applies partial processing of only the essential protocol sub-layers needed for notification rather than replicating the complete circuit switched link processing. This partial action approach maintains sufficient notification reliability while reducing the processing load and associated battery drain.
Data Source
AI summary
An apparatus for notifying of a circuit switched event over a packetized data network. The apparatus includes a packetized data modem and an internetworking interface. The packetized data modem is configured to transmit and receive packetized data over a packetized data radio link. The packetized data modem has a tunneling link access control processor that is configured to encapsulate/decapsulate data for a subset of sub-layers corresponding to a link access control layer of a circuit switched network model. The internetwork interface is operatively coupled to the packetized data modem via the packetized data network, and is configured to notify the packetized data modem of the circuit switched event. The internetworking interface has a link access control/tunneling link access control processor that is configured to encapsulate/decapsulate the data when performing notification of the circuit switched event.