Editing WiMAX (section)

== Development ==
The IEEE 802.16m-2011 standard<ref>{{cite web |url=http://www.networkworld.com/news/2010/012810-wimax-2.html?hpg1=bn |title='WiMAX 2' coming in 2011? |website=Networkworld.com |access-date=2010-10-13 |archive-url=https://web.archive.org/web/20110613120529/http://www.networkworld.com/news/2010/012810-wimax-2.html?hpg1=bn |archive-date=2011-06-13 |url-status=dead }}</ref> was the core technology for WiMAX 2. The IEEE 802.16m standard was submitted to the ITU for [[IMT-Advanced]] standardization.<ref>{{cite web|url=http://www.ieee.org/web/aboutus/news/index.html?WT.mc_id=hpn_newsroomu|title=802.16m submitted to ITU for IMT-Advanced standardization|website=[[Institute of Electrical and Electronics Engineers]] (IEEE) |access-date=2009-10-18|archive-url=https://web.archive.org/web/20090303221945/http://www.ieee.org/web/aboutus/news/index.html?WT.mc_id=hpn_newsroomu|archive-date=2009-03-03|url-status=dead}}</ref> IEEE 802.16m is one of the major candidates for IMT-Advanced technologies by ITU. Among many enhancements, IEEE 802.16m systems can provide four times faster{{Clarify|date=May 2010}} data speed than the WiMAX Release 1.

WiMAX Release 2 provided backward compatibility with Release 1. WiMAX operators could migrate from release 1 to release 2 by upgrading channel cards or software. The WiMAX 2 Collaboration Initiative was formed to help this transition.<ref>{{cite web |title= WiMAX 2 Collaboration Initiative (WCI) Frequently Asked Questions |date= April 12, 2010 |publisher= WiMAX Forum |url= http://www.wimaxforum.org/sites/wimaxforum.org/files/page/2009/12/wimax_2_collaboration_initiative_qa_april_12_2010.pdf |access-date= 2011-08-27 |archive-url= https://web.archive.org/web/20110904130512/http://www.wimaxforum.org/sites/wimaxforum.org/files/page/2009/12/wimax_2_collaboration_initiative_qa_april_12_2010.pdf |archive-date= 2011-09-04 |url-status= dead }}</ref>

It was anticipated that using 4X2 [[MIMO]] in the urban microcell scenario with only a single 20&nbsp;MHz [[Time-division duplex|TDD]] channel available system wide, the 802.16m system can support both 120&nbsp;Mbit/s downlink and 60&nbsp;Mbit/s uplink per site simultaneously.<!-- jargon!! -->
It was expected that the WiMAX Release 2 would be available commercially in the 2011–2012 timeframe.<ref>{{cite news |title= Global WiMAX network deployments surpass 500 |date= October 6, 2009 |work= News release |publisher= WiMAX Forum |url= http://www.wimaxforum.org/node/1724 |access-date= August 25, 2011 |archive-url= https://web.archive.org/web/20110928084208/http://www.wimaxforum.org/node/1724 |archive-date= 2011-09-28 |url-status= dead }}</ref>

WiMAX Release 2.1 was released in early-2010s which broke compatibility with earlier WiMAX networks.{{cn|date=July 2023}} Significant number of operators have migrated to the new standard that is compatible with TD-LTE by the end of 2010s.