IDU-ODU Voice Interface for Unified SLIC Event Processing
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Solution Overview
Problem
Existing Customer Premise Equipment (CPE) products integrating Indoor Unit (IDU) and Outdoor Unit (ODU) face issues with small coverage due to the inability to directly connect Subscriber Line Interface Circuit (SLIC) chips, requiring re-implementation of voice protocol stacks and causing compatibility challenges between 5G/LTE and VoNR/VOLTE protocol stacks.
Innovation Solution
Migrate the voice protocol stack to the ODU, using it as an adaptation layer between the IDU and ODU, and implement a unified data format to simplify interaction, reducing the number of interfaces and facilitating cross-pairing of IDUs and ODUs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the SLIC chip and voice protocol stack are configured on the IDU, then the voice function can be implemented, but the protocol stack cannot be inherited by the ODU and requires heavy re-implementation workload
Solution Approach 1:
The voice protocol stack is extracted from the IDU and relocated to the ODU, separating the protocol processing function from the terminal device. This allows the ODU to inherit and reuse the protocol stack, eliminating the need for re-implementation on the IDU side.
Solution Approach 2:
A standardized interface is introduced as an intermediary between the IDU and ODU, enabling the ODU to access and process SLIC event messages through this interface. This mediator layer facilitates protocol stack inheritance and reuse across different devices.
2Reliability
If the SLIC chip is directly connected from the IDU to the ODU through hardwired connection, then the connection is stable, but the network cable connection prevents direct SLIC chip access
Solution Approach 1:
The mechanical hardwired connection is replaced with a logical connection through standardized data interfaces. The SLIC event messages are transmitted via network cable using defined protocols, eliminating the need for direct physical SLIC chip access while maintaining connection reliability.
3Adaptability or versatility
If multiple protocol stacks (5G/LTE and VoNR/VOLTE) interact, then comprehensive service support is achieved, but the large quantity of interfaces cannot be unified and compatibility is difficult to realize
Solution Approach 1:
A universal standardized interface is designed for SLIC event message transmission that can be used across different protocol stacks (5G/LTE and VoNR/VOLTE). This single interface handles multiple functions and protocol interactions, eliminating the need for separate interfaces for each protocol stack.
Solution Approach 2:
The interface specifications are standardized and homogenized across different protocol stacks. By using统一的 data formats, message structures, and interaction protocols, the system achieves compatibility and uniformity despite supporting multiple heterogeneous protocol stacks.
Data Source
AI summary
The present disclosure provides a data processing method, an outdoor unit (IDU), an indoor unit (ODU), and a computer-readable storage medium. The method performed by an IDU communicating with an ODU may include: receiving an operation status signal from a user-side device; generating a Subscriber Line Interface Circuit (SLIC) event message corresponding to the operation status signal according to the operation status signal; generating a first SLIC control flow according to the SLIC event message, where the first SLIC control flow carries first label information corresponding to the SLIC event message; and sending the first SLIC control flow to the ODU, where the first label information indicates the SLIC event message which is processible to a voice protocol stack.