IEEE 802.15.4n-2016 PDF
This amendment defines a physical layer for IEEE Std. 802.15.4 utilizing the approved 174-216 MHz, 407-425 MHz and 608-630 MHz medical bands in China. This amendment defines modifications to the Medium Access Control (MAC) layer needed to support this new physical layer.
Amendment Standard – Superseded. The Ministry of Industry and Information Technology (MIIT) of the People’s Republic of China has approved the 174–216 MHz, 407–425 MHz, and 608–630 MHz bands for medical information transmission. China medical band (CMB) devices operating within these bands conform to a set of rules specified in MIIT Doc 423-2005, which restricts use of the band to only medical, non-voice use under direction of a healthcare practitioner, among other requirements. A physical layer (PHY) for devices operating on Chinese approved bands for medical signals is defined in this amendment.