Wimax standards and Security The Wimax

Abstract Test Suite

The WIMAX Forum has developed several process and procedural test doc- uments based on IEEE 802.16 standards. The key test documents are as follows:

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  Protocol implementation conformance specifications (PICS)
  
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  Test purposes and test suite structure (TP and TSS)
  
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  Radio conformance test (RCT) specifications
  
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  Protocol implementation extra information for testing (IXIT)
  

To evaluate conformance of a particular implementation, it is necessary to have a statement listing the capabilities and options that have been

implemented for a telecommunication specifications. Such a statement is known as PICS.

The end product of the abstract test suite (ATS) are the test scripts for conformance and interoperability testing under a number of test conditions mentioned in the PICS document for a given WiMAX system profile.

1. 
   Certification Challenges
   

One of the major challenges for the WiMAX certification process is to have all the necessary test equipment, such as a protocol analyzer (PA), ready for use by the certification lab. The WiMAX Forum is working on the development of a PA (through a third party) to help analyze the transmitted downlink and uplink IP packets between a BS and SS based on the PICS document [8]. Some key features of the PA system are:

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  Data packet capture and display
  

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Display multiple levels of information (summary, decode tree, raw data packets, etc.)

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  Time stamping
  
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  Ability to correlate capture data with test results
  
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  Display and store test log
  
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  Display of message sequence information
  
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  Ability to trigger on packet contents (protocol, field values, pattern) and on extended sequences of events
  
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  Collection and display of data statistics (packet type counters, error counter, traffic statistics, bandwidth utilization)
  
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  Support of a scripting interface to create customized scripts and to automate testing process
  

3.