Presentation on theme: "Updated China's 5GHz Spectrum Regulation"— Presentation transcript:
1 Updated China's 5GHz Spectrum Regulation January 2010doc.: IEEE /0084r3Updated China's 5GHz Spectrum RegulationDate:Authors:Brian Hart, Cisco Systems
2 AbstractThe latest update of China’s 5 GHz spectrum regulation is introduced, and the 11ac channelization scheme for China is analyzed.
3 BackgroundIn China, the total bandwidth available for ac in 5 GHz was only 125 MHz (5,725 ~ 5,850 MHz).How to efficiently use this band was a critical issue for ac implementation in China.R3.1.E in the 11ac spec framework points out that the 11ac draft specification shall include support for an efficient channelization in China’s (5,725 ~ 5,850 MHz) spectrum.Although there are intensive discussions on this issue (esp. during IEEE ac meetings), there is still no appropriate solution.
4 New progress of China’s 5GHz spectrum regulation June 2010doc.: IEEE /xxxxr0New progress of China’s 5GHz spectrum regulationRecently, China’s spectrum regulator, State Radio Regulatory Commission (SRRC), released a new spectrum (5,150 ~ 5,350 MHz) for wireless access systems, including Wireless LAN.The major requirements for the new spectrum are as follows.Frequency range: 5,150 ~ 5,350 MHzTransmit power: 200 mW (EIRP)Maximum PSD: 10 dBm/MHz (EIRP)Out-of-band emission: -80 dBm/Hz (EIRP)For devices working in 5,250 ~ 5,350 MHzDFS shall be used.If TPC is not used, the maximum TX power and PSD shall be reduced by 3 dB.The above requirements are basically same as ITU-R recommendation and European regulation. For more details, please refer to SRRC’s Document 620.Now, the total spectrum of ac in China is up to 315 MHz.5,150 ~ 5,350 MHz5,725 ~ 5,850 MHzBrian Hart, Cisco Systems
5 802.11ac available spectrum in different regions USMHz51505350547057255850Europe JapanMHz5150535054705725ChinaMHz5150535057255850
6 802.11ac channelization for China June 2010doc.: IEEE /xxxxr0802.11ac channelization for ChinaTo keep compatibility and coexistence, ac channels for China should be aligned with those in other regions.ChinaUSEurope JapanBrian Hart, Cisco Systems
7 SummaryChina opens up a new 5GHz frequency band (5,150 ~ 5,350 MHz ), so that the total ac available spectrum is up to 315 MHz.An ac channelization for China is proposed to maintain compatibility and coexistence of ac devices throughout the world.