Regenerative Satellite Mesh – A (RSM-A) is an internationally standardized satellite communications protocol by

Telecommunications Industry Association The Telecommunications Industry Association (TIA) is accredited by the American National Standards Institute (ANSI) to develop voluntary, consensus-based industry standards for a wide variety of information and communication technology (Informat ...

and

European Telecommunications Standards Institute The European Telecommunications Standards Institute (ETSI) is an independent, not-for-profit, standardization organization operating in the field of information and communications. ETSI supports the development and testing of global technical ...

. It is based upon the

Spaceway The Spaceway system was originally envisioned as a global Ka-band communications system by Hughes Electronics. When the project to build the system was taken over by Hughes Network Systems, a subsidiary of Hughes Electronics, it was transformed ...

K_a-band communications system developed by

Hughes Network Systems Hughes Network Systems, LLC is an American telecommunications company that specializes in providing satellite-based communication services for consumer and enterprise markets. It is headquartered in Germantown, Maryland and provides satellite i ...

. It is expected to be utilized by the

satellite called Spaceway-3. The standard is meant to provide

broadband In telecommunications, broadband or high speed is the wide-bandwidth (signal processing), bandwidth data transmission that exploits signals at a wide spread of frequencies or several different simultaneous frequencies, and is used in fast Inter ...

capabilities of up to 512 kbit/s, 2 Mbit/s, and 16 Mbit/s uplink data communication rates with fixed K_a-band satellite terminal antennas sized as small as 77 cm. The standard consists of the following documents: * TIA-1040.1.01 Physical Layer Specification; Part 1: General Description * TIA-1040.1.02 Physical Layer Specification; Part 2: Frame Structure * TIA-1040.1.03 Physical Layer Specification; Part 3: Channel Coding * TIA-1040.1.04 Physical Layer Specification; Part 4: Modulation * TIA-1040.1.05 Physical Layer Specification; Part 5: Radio Transmission and Reception * TIA-1040.1.06 Physical Layer Specification; Part 6: Radio Link Control * TIA-1040.1.07 Physical Layer Specification; Part 7: Synchronization * TIA-1040.2.01 MAC/SLC Layer Specification; Part 1: General Description * TIA-1040.2.02 MAC/SLC Layer Specification; Part 2: SLC Layer * TIA-1040.2.03 MAC/SLC Layer Specification; Part 3: ST-SAM interface

General Description

The standard describes the various segments involved in a ''RSM-A'' satellite system including: * Satellite Terminal: fixed satellite terminal for satellite communication linked to terrestrial hosts via connected LANs * Satellite Payload: geosynchronous regenerative satellite payload and antennas * Network Operations Control Center: involved ground network management and resource management The uplink consists of a multi-frequency time-division multiple access (MF-TDMA) scheme where individual uplink spotbeams are assigned frequency channels out of the satellites frequency band. Satellite Terminals transmit on timeslots on its uplink beam's frequency channels using mechanisms such as

Bandwidth-on-Demand Dynamic bandwidth allocation is a technique by which traffic bandwidth in a shared telecommunications medium can be allocated on demand and fairly between different users of that bandwidth. This is a form of bandwidth management, where the sharin ...

(BoD) protocols with the satellite payload. The downlink consists of a time-division multiplexing (TDM) carrier bursts directed in a hoping fashion to different downlink beams each downlink frame timeslot. The downlink beams can be narrow downlink spotbeams during the point-to-point transmission part of each downlink frame or they can be downlink shaped beams that cover a much larger geographic area during the shaped beam transmission part of each downlink frame.

General Description

See also