Introduction to Major GSM Services

Over the past 20 years, GSM has gone from providing basic 2G voice services only to a wide variety of data services and value-added services. GSM growth has stimulated a growing demand for improved user experience. As networks grow complex, operators value high quality voice services, high PS carrier efficiency, high spectrum usage efficiency, and energy savings, more than ever. Huawei provides GSM solutions:

If you are planning a network, you might ask: What features does GSM have? Which features are included when just starting? Which ones are added during O&M?

If you are maintaining a network, you might ask: How do I enable a particular feature? If a feature is not performing as expected, how can I improve it? If a feature malfunctions, how do I fix it?

The answers to these questions can be found in the GBSS Feature Documentation.

High Quality Voice Services

Service Description

 To improve the MOS in different scenarios, high quality voice service features are provided, such as TFO, Um Interface Speech Frame Repairing, Smooth Voice Call Handover, and CSFB QOS.

Feature Description

This before and after illustration shows where the feature takes effect.

Working principles of this feature are made clear with a comparison to a feature that users are already familiar with.

Document Links

 Improved PS Bearing Efficiency

Service Description  

To improve PS bearing efficiency and PS user experience, the PS bearing efficiency improvement features are provided, such as Differentiated PS Services, Duty-Cycle-based PDCH Management, Small Packet Resource Balancing, and PS Access Congestion Balancing.

Feature Description

Graphical representations make important or critical points, clear as day.

Document Links

Improved Spectrum Usage Efficiency Improvement

Service Description   

In tight frequency reuse pattern, interference is maximally reduced by using spectrum efficiency improvement features.  

Feature Description

Graphical representations help you understand IBCA II channel allocation.

Clear and simple flash animations make it easy to understand features.

Document Links

 Energy Savings: Dynamic Cell Power Off

üWhen traffic volume is low, all the TRXs in 1800 MHz cell are disabled, and 900 MHz cells provide services for all subscribers in the coverage area of the 1800 MHz cells.

üWhen traffic volume increases, the TRXs that were disabled are powered on to meet the traffic requirement in the coverage area.

Feature Description

Graphical representations make important or critical points, clear as day.

Thorough documentation explains all feature parameters.

Clear and simple flash animations make it easy to understand features.

 Document Links

Document name	Document Link
Dynamic Cell Power Off(Multimedia)	http://support.huawei.com/carrier/docview?nid=DOC1000023961
Dynamic Cell Power Off(Text)	http://support.huawei.com/hdx/hdx.do?lib=SE0000735236GED0125P&v=01&tocLib=SE0000735236GED0125P&tocV=01&id=GED0125P_01_10184&tocURL=resources/en-us_bookmap_0001793231.html&p=t&fe=1&ui=3&keyword=cell&keyword=off&keyword=power&keyword=dyna