# US 10,484,084 B2 · Method and system to increase capacity of high throughput satellite communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,084 B2 - Document ID: US10484084B2 - Status: Granted - Kind: B2 - Application number: 15/146,669 - Filed: 2016-05-04 - Published: 2017-11-09 - Granted: 2019-11-19 - Earliest claimed: 2016-05-04 - Assignees: Hughes Network Systems, LLC - Applicants: Lin-Nan Lee; Mustafa Eroz - Inventors: Lin-Nan Lee; Mustafa Eroz - Web page: https://patentgrep.com/patent/US10484084B2 ## CPC - H04B 7/18582: {Arrangements for data linking, i.e. for data framing, for error recovery, for multiple access} - H04B 7/18508: {with satellite system used as relay, i.e. aeronautical mobile satellite service} - H04B 7/18528: {Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system} - H04B 7/18543: {for adaptation of transmission parameters, e.g. power control (for detecting or preventing errors in the information received H04L1/00)} - H04B 7/1858: {Arrangements for data transmission on the physical system, i.e. for data bit transmission between network components} - H04L 1/0034: {where the transmitter decides based on inferences, e.g. use of implicit signalling} - H04L 1/0042: {Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape (H04L1/0067 takes precedence)} - H04L 1/0057: {Block codes (H04L1/0061, H04L1/0064 take precedence)} - H04B 7/18517: {Transmission equipment in earth stations} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method and system for providing high throughput communications via a Radio Frequency (RF) satellite are disclosed. The method includes providing a plurality of information bit streams intended for a plurality of downlinks; modulating an uplink stream including the plurality of information bit streams with an uplink modulation scheme to generate an uplink signal; transmitting the uplink signal to the satellite; and partitioning, at the satellite, the uplink signal into a plurality of downlink signals, each one intended for one of the plurality of downlinks. In the method, the uplink stream includes the plurality of information bit streams. ## Claims ### Claim 1 A method for providing high throughput communications via a Radio Frequency (RF) satellite, the method comprising: providing a plurality of information bit streams intended for a plurality of downlinks; modulating an uplink stream comprising the plurality of information bit streams with an uplink modulation scheme to generate an uplink signal; transmitting the uplink signal to the satellite; partitioning, at the satellite, the uplink signal into a plurality of downlink signals, each one of the downlink signals intended for one of the plurality of downlinks; encoding the uplink stream with a Forward Error Correcting (FEC) scheme; and decoding and demodulating, at the satellite, the uplink signal, wherein the uplink stream comprises the plurality of information bit streams, and the uplink modulation scheme uses a higher order constellation as compared to a order constellation used by a modulation scheme used for at least one of the plurality of downlinks, and based on the FEC scheme, a Signal-to-Noise (SNR) ratio of an uplink and the uplink modulation scheme, the uplink stream has a frame error rate that is less than or equal to a desired frame error rare. ### Claim 2 (depends on 1) The method of claim 1, wherein the Signal-to-Noise (SNR) ratio of the uplink is greater than an SNR of at least one of the plurality of downlinks. ### Claim 3 (depends on 1) The method of claim 1, wherein the uplink modulation scheme comprises 64-APSK modulation, and each of the plurality of information bit streams is encoded using a FEC scheme, wherein based on the FEC scheme, the Signal-to-Noise (SNR) ratio of the uplink and the uplink modulation scheme, the uplink stream has a frame error rate that is less than or equal to a desired frame error rate. ### Claim 4 (depends on 3) The method of claim 3, wherein the partitioning comprises separating an I-Channel and a Q-Channel of the uplink stream. ### Claim 5 (depends on 1) The method of claim 1, wherein the uplink modulation scheme comprises 1024-Amplitude Phase-Shift Keying (APSK) modulation and the FEC scheme comprises concatenated Bose, Chaudhuri, and Hocquenghem (BCH) and Low Density Parity Check (LDPC) encoded data at a Rate of 13/18. ### Claim 6 (depends on 1) The method of claim 1, wherein the uplink modulation scheme comprises 64-APSK modulation and the FEC scheme comprises concatenated Bose, Chaudhuri, and Hocquenghem (BCH) encoded data. ### Claim 7 (depends on 1) The method of claim 1, further comprising: encoding and modulating, at the satellite, each of the plurality of downlink signals with a downlink FEC scheme and a downlink modulation scheme. ### Claim 8 A system to provide high throughput communications via a Radio Frequency (RF) satellite, the system comprising: a receiver to receive a plurality of information bit streams intended for a plurality of downlinks; a modulator to modulate an uplink stream comprising the plurality of information bit streams with an uplink modulation scheme to generate an uplink signal; a transmitter to transmit the uplink signal to the satellite; and a de-multiplexor, at the satellite, to partition the uplink signal into a plurality of downlink signals, each one of the downlink signals intended for one of the plurality of downlinks; an encoder to encode an uplink stream with a Forward Error Correcting (FEC) scheme; and a decoder and demodulator, at the satellite, to decode and demodulate the uplink signal, wherein the uplink stream comprises the plurality of information bit streams, and the uplink modulation scheme uses a higher order constellation as compared to an order constellation used by a modulation scheme used for at least one of the plurality of downlinks, and based on the FEC scheme, a Signal-to-Noise (SNR) ratio of an uplink and the uplink modulation scheme, the uplink stream has a frame error rate that is less than or equal to a desired frame error rate. ### Claim 9 (depends on 8) The system of claim 8, wherein the Signal-to-Noise (SNR) ratio of the uplink is greater than an SNR of at least one of the plurality of downlinks. ### Claim 10 (depends on 8) The system of claim 8, wherein the uplink modulation scheme comprises 64-APSK modulation, and each of the plurality of information bit streams is encoded using a FEC scheme, wherein based on the FEC scheme, the Signal-to-Noise (SNR) ratio of the uplink and the uplink modulation scheme, the uplink stream has a frame error rate that is less than or equal to a desired frame error rate. ### Claim 11 (depends on 10) The system of claim 10, wherein the de-multiplexor comprises an I-Q separator to separate an I-Channel and a Q-Channel of the uplink stream. ### Claim 12 (depends on 8) The system of claim 8, wherein the uplink modulation scheme comprises 1024-Amplitude Phase-Shift Keying (APSK) modulation and the FEC scheme comprises concatenated Bose, Chaudhuri, and Hocquenghem (BCH) and Low Density Parity Check (LDPC) encoded data at a Rate of 13/18. ### Claim 13 (depends on 8) The system of claim 8, wherein the uplink modulation scheme comprises 64-APSK modulation and the FEC scheme comprises concatenated Bose, Chaudhuri, and Hocquenghem (BCH) encoded data. ### Claim 14 (depends on 8) The system of claim 8, further comprising: an encoder and modulator, at the satellite, to encode and modulate each of the plurality of downlink signals with a downlink FEC scheme and a downlink modulation scheme.