Previously the deployment of the 3GPP LTE technology in the bands 2305 to 2315 MHz and 2350 to 2360 MHz (known as the Wireless Communications Service band, or 'WCS' in the United States), could not be accommodated due to technical and operational constraints present in FCC regulations. This is commonly known as Block A (2305 - 2315/2350 - 2355 MHz) and Block B (2310 - 2315/2355 - 2360 MHz) in the WCS Band. The FCC on October 17, 201 amended and confirmed the technical and operational characteristics for WCS which enable the deployment of LTE FDD technology in Blocks A & B in the frequency band covering 2305 - 2315 MHz and 2350 - 2360 MHz.