Regenerative Satellite Mesh - A Air Interface
Encyclopedia
Regenerative Satellite Mesh - A (RSM-A) is an internationally standardized satellite communications protocol by Telecommunications Industry Association
and European Telecommunications Standards Institute
.
It is based upon the SPACEWAY
Ka-band communications system developed by Hughes Network Systems. It is expected to be utilized by the Hughes Network Systems satellite called SPACEWAY-3
.
The standard is meant to provide broadband
capabilities of up to 512 kbit/s, 2 Mbit/s, and 16 Mbit/s uplink data communication rates with fixed Ka-band satellite terminal antennas sized as small as 77 cm.
The standard consists of the following documents:
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 (BoD) protocols with the Satellite Payload.
The downlink consists of a time division multiplex (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.
Telecommunications Industry Association
The Telecommunications Industry Association is accredited by the American National Standards Institute to develop voluntary, consensus-based industry standards for a wide variety of ICT products, and currently represents nearly 400 companies...
and European Telecommunications Standards Institute
European Telecommunications Standards Institute
The European Telecommunications Standards Institute is an independent, non-profit, standardization organization in the telecommunications industry in Europe, with worldwide projection...
.
It is based upon the SPACEWAY
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 into a phased deployment initially only launching a...
Ka-band communications system developed by Hughes Network Systems. It is expected to be utilized by the Hughes Network Systems satellite called SPACEWAY-3
SPACEWAY-3
SPACEWAY-3 is a communications satellite which, as of August 2007, is undergoing on-orbit testing after its successful launch. The third satellite in the SPACEWAY series, it includes a Ka-band communications payload...
.
The standard is meant to provide broadband
Broadband Internet access
Broadband Internet access, often shortened to just "broadband", is a high data rate, low-latency connection to the Internet— typically contrasted with dial-up access using a 56 kbit/s modem or satellite Internet with inherently high latency....
capabilities of up to 512 kbit/s, 2 Mbit/s, and 16 Mbit/s uplink data communication rates with fixed Ka-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
Multi-frequency time division multiple access
MF-TDMA is the leading technology for dynamically sharing bandwidth resources in an over-the-air, two-way communications network...
(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 (BoD) protocols with the Satellite Payload.
The downlink consists of a time division multiplex (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.