Technical information: 10-66 GHz
Because of the testing missing in the IEEE process, WiMAX created the 10-66 GHz technical working group. The profiles and test specifications are created by the technical working group, but actual testing is done by an authorized, independent laboratory. For each system profile, functions are separated between mandatory and optional feature classes by the PICS proforma document. There can be differences from one equipment manufacturer to another in implementing optional features, but mandatory features will be same in every vendor's product. Implementation of an optional feature is noted when the vendor fills out the PICS proforma.
System Profiles for 10-66 GHz
WiMAX has defined two MAC system profiles that were rolled back into IEEE 802.16c:- Basic ATM system MAC profile
- Basic IP system MAC profile
Two primary PHY system profiles were also defined:
- 25 MHz wide channel for (typically for U.S. deployments) use in the 10-66 GHz range.
- 28 MHz wide channel for (typically European deployments) use in the 10-66 GHz range.
The PHY profiles are the same except for their channel width and their symbol rate, which is proportional to their channel width. Each primary PHY profile has two sub-profiles - FDD and TDD.
Documents: PICS, TSS&TP, ATS
The technical working has produced the following technical documents and have rolled them back into 802.16. All have been approved and published:- PICS proforma, per ISO/IEC 9646-7, describing mandatory and optional features for each 10-66 GHz system profile, enabling developers to state support for features.
- TSS & TP document, per ISO/IEC 9646-2, for the 10-66 GHz system profiles.
- RCT specification, specifying radio conformance testing, for the 10-66 GHz system profiles.
In addition, the working group may develop an ATS specification, per ISO/IEC 9646-2 for 10-66 GHz.