Achieving higher data rate on NB-IoT over satellite
AssigneeLockheed Martin Corporation
InventorsPiya Seth Bhaskar, Xiangdong Liu, Muthuthamby Sreetharan, Dilip Shyamsundar Gokhale
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Abstract
A satellite communication system includes a satellite, satellite base station (eNodeB or gNodeB) and a user equipment (UE). The satellite provides a number of satellite beams, and each satellite beam includes multiple cells. The base station communicates with the UE via a satellite using a narrowband internet of things (NB-IoT) waveform and an enhanced protocol. In particular, the base station and UE perform carrier aggregation by adding and/or deleting carriers in a cell, and the base station and UE perform a higher-order modulation and coding scheme (MCS) processing to support high data rates for user data transport.
Claims20
A communication system, comprising:
- a satellite base station configured to communicate with a satellite, the satellite base station comprising:
- a satellite baseband controller,
- one or more satellite modems, and
- a control processor operatively coupled to the satellite baseband controller and the one or more satellite modems, the control processor configured to:
- provide a message to a plurality of terminal devices in communication with the satellite,
- receive, based on the message, store a subset of the plurality of terminal devices that support carrier aggregation, and
- responsive to data transfer increasing or decreasing from an initial data transfer to a terminal device of the subset of terminal devices, assigning or removing, respectively, carrier channels provided by the satellite.
A communication system, comprising:
- a satellite configured to provide a plurality of satellite beams, each satellite beam including a plurality of cells;
- a satellite base station configured to communicate with a satellite, the satellite base station comprising:
- a satellite narrowband (NB) Internet of Things (IoT) base station and user equipment (UE) capabilities module,
- a carrier aggregation module, and
- a control processor operatively coupled to the satellite NB-IoT and UE capabilities module and the carrier aggregation module, the control processor configured to:
- provide a message to a terminal device in communication with a carrier of the satellite, and
- responsive to data transfer increasing from an initial data transfer to the terminal device, allocate, using the carrier aggregation module, resources on a primary NB-IoT carrier, and
- instruct the terminal device to move to the primary NB-IoT.
Dependencies are inferred from the claim text.