SGSN BSSGP Layer Service Type Information Extraction
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Solution Overview
Problem
The existing methods for transmitting service type information in mobile communication networks are complex, leading to a heavy processing load for base station controllers due to the need for multiple layered protocol restorations.
Innovation Solution
The method involves the Serving GPRS Support Node (SGSN) obtaining service type information from a Gateway GPRS Support Node (GGSN) and writing it into a BSSGP or network service layer information element of a downlink packet, which is then sent to the base station controller, reducing the number of protocol stack processing times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If service type information is carried in IP layer information element and multiple layered protocol restorations are performed, then service type information can be obtained, but base station controller processing load increases
Solution Approach 1:
The invention extracts service type information from the IP layer and places it directly into the BSSGP layer information element, eliminating the need for the base station controller to restore multiple protocol layers (IP, LLC, SNDCP) to access this information. This extraction principle reduces processing complexity while ensuring information delivery.
Solution Approach 2:
The service type information is pre-positioned in the BSSGP layer information element by the serving GPRS support node before transmission to the base station controller. This preliminary action allows the base station controller to obtain the information immediately upon receiving the packet, without performing complex multi-layer restoration operations.
2Reliability
If multiple layered protocol restorations are performed to obtain service type information, then complete protocol compliance is maintained, but processing time increases
Solution Approach 1:
The service type information is extracted from deeper protocol layers and placed in the BSSGP layer, allowing the base station controller to access it without performing time-consuming restorations of IP, LLC, and SNDCP layers, thus reducing processing time while maintaining protocol compliance.
Solution Approach 2:
The information is prepared and positioned in the BSSGP layer in advance by the serving GPRS support node, enabling the base station controller to retrieve it immediately upon packet reception without waiting for multi-layer restoration processes to complete.
Data Source
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AI summary
The present invention discloses a method, a system, and a related device for transmitting service type information. The method includes: obtaining service type information; writing the service type information into a base station subsystem general packet radio service protocol BSSGP layer information element or a network service layer information element of a downlink packet; and sending the downlink packet to a base station controller, where the downlink packet carries the service type information. In the embodiments of the present invention, the number of layered processing times of a protocol stack may be reduced when the base station controller obtains the service type information, and therefore, a processing load of the base station controller may be reduced.