FCC gives go-ahead to spectrum sharing for low earth orbiting satellites

June 14, 2004

The FCC adopted a plan June 10 allowing shared spectrum use for low earth orbit satellites systems in the 1.6GHz and 2.4GHz bands in an effort to increase the number of service providers in the same spectrum.

The aim of the commission plan is to promote deployment of new services. The plan calls for:

L-band (1.6GHz) mobile satellite service operators using code division multiple access (CDMA) and time division multiple access (TDMA) to share 3.1MHz of spectrum (1618.35MHz to 1621.35MHz). Previously, this spectrum was reserved for CDMA exclusive use. CDMA and TDMA mobile satellite service operators will be expected to coordinate usage among themselves.

At 2.4GHz (S-band), the FCC set aside the 2495MHz-to-2500MHz band for fixed and mobile services, excluding aeronautical mobile services, thereby accommodating the relocation of MDS channels 1 and 2. The commission also moved MSS providers’ ancillary terrestrial component operations from 2492.5MHz-to-2498MHz to 2487.5MHz-to-2493MHz. CDMA MSS will continue operating in 2495MHz to 2500MHz.

The commission also issued a Notice of Proposed Rulemaking to investigate the feasibility of CDMA and TDMA MSS operators’ sharing 2.25MHz between 1616.0MHz to 1618.25MHz.

For more information, please visit: www.fcc.gov.

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