公开(公告)号：WO2021236866A2

公开(公告)日：2021-11-25

申请号：PCT/US2021/033297

申请日：2021-05-20

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： RAVISHANKAR, Channasandra ,  JONG, James Jehong ,  ZAKARIA, Gaguk ,  BENAMMAR, Nassir

IPC: H04B7/185 ,  H04B7/18513 ,  H04B7/18519 ,  H04B7/18539 ,  H04B7/18563 ,  H04B7/2643 ,  H04L47/20 ,  H04L47/629 ,  H04W28/0268 ,  H04W4/10 ,  H04W72/0406 ,  H04W72/0446

Abstract: A system and method for operating a hybrid 4G satellite network. The method includes providing a NGSG including a satellite AS/NAS stack, a terrestrial 4G stack and a relay to connect the satellite AS/NAS stack and the terrestrial 4G stack; transporting a 4G traffic between a 4G UE and the NGSG using a satellite air interface; utilizing a terrestrial network between the NGSG and a 4G CN to transport the 4G traffic; and mapping, with the relay, the 4G traffic between the satellite AS/NAS stack and the terrestrial 4G stack and vice versa, where the satellite air interface is better suited for satellite communications than the terrestrial network. A system and method for multiplexing a first-generation UE and a second-generation UE on a satellite channel.

公开(公告)号：WO2022020103A2

公开(公告)日：2022-01-27

申请号：PCT/US2021/040954

申请日：2021-07-08

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： JONG, James Jehong ,  RAVISHANKAR, Channasandra ,  WHITMARSH, William

IPC: H04B7/185 ,  H04B7/08 ,  H04B7/0857 ,  H04B7/18508 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0643 ,  H04L1/18 ,  H04L1/1816 ,  H04L25/03318 ,  H04L5/0003

Abstract: A receiver and a method for receiving a radio communication is disclosed. The method includes receiving a burst encoded with a robust modulation coding scheme (MCS) as RX signals; generating, for each of the RX signals, a burst SNR, soft decision symbols and a packet; weighing, each of soft decision symbols with a respective burst SNR, to calculate soft combined symbols that are used to generate a Maximal-Ratio Combining (MRC) packet; and selecting, from the packets and the MRC packet, a CRC passed packet as an output. An adaptive dual burst transmitter is disclosed.

公开(公告)号：WO2020068149A1

公开(公告)日：2020-04-02

申请号：PCT/US2018/068228

申请日：2018-12-31

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： RAVISHANKAR, Channasandra ,  JONG, James Jehong ,  ZAKARIA, Gaguk ,  BENAMMAR, Nassir

IPC: H04L1/06 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L29/08 ,  H04W4/02 ,  H04W76/02

Abstract: A data communications system, includes a data communications device (DCD), and at least one wireless access network, which includes a base station. The DCD generates a narrowband message which includes user-plane data of the DCD. The DCD transmits the narrowband message to the base station via a random access control-plane channel of the wireless access network, prior to any request for or establishment of a wireless or radio resource connection, or establishment of any dedicated radio bearers or wireless channels, between the DCD and the base station.

公开(公告)号：WO2021236874A2

公开(公告)日：2021-11-25

申请号：PCT/US2021/033311

申请日：2021-05-20

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： RAVISHANKAR, Channasandra ,  JONG, James Jehong ,  ZAKARIA, Gaguk ,  BENAMMAR, Nassir

IPC: H04B7/185 ,  H04B7/18513 ,  H04B7/18519 ,  H04B7/18539 ,  H04B7/18563 ,  H04B7/2643 ,  H04L47/20 ,  H04L47/629 ,  H04W28/0268 ,  H04W4/10 ,  H04W72/0406 ,  H04W72/0446

Abstract: A system and method for reducing usage of satellite channelizers including dividing a frequency spectrum into sub-bands; providing a satellite channelizer for each of the sub-bands, where each of the sub-bands may include channels; multiplexing service channels into the channels of one of the sub-bands, where the service channels convey data for a plurality of MSSs. A system and method for obtaining high throughput on a satellite network. A system and method for providing a Fair Access Policy (FAP) in a 4G system.

公开(公告)号：WO2020139622A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/066824

申请日：2019-12-17

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： JONG, James Jehong ,  RAVISHANKAR, Channasandra ,  WHITMARSH, Billy James

IPC: H04L27/26

Abstract: Half tone offset may be utilized to mitigate signal distortion caused by DC bias within OFDM-based systems. In addition a cyclic prefix may be utilized within an OFDM-based system to mitigate inter-symbol-interference. Presented herein are techniques and methods to efficiently apply a cyclic prefix to an OFDM symbol with half tone offset for low power systems.

公开(公告)号：WO2021236863A1

公开(公告)日：2021-11-25

申请号：PCT/US2021/033292

申请日：2021-05-20

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： JONG, James Jehong ,  RAVISHANKAR, Channasandra ,  WHITMARSH, William

IPC: H04B7/185

Abstract: A system and method for communicating with an Internet Of Things (IoT) device via a satellite link. The method includes assigning a transmission mode to a physical channel, where the physical channel supports multiple timeslot durations and the transmission mode is selected from a single user (SU) or a multi-user (MU); selecting a timeslot duration from the multiple durations for a payload; obtaining, when the transmission mode is SU, a timeslot grant for use of the physical channel for the timeslot duration; and transmitting a burst including the payload, where the burst is transmitted synchronized with the timeslot grant when the transmission mode is SU and the burst is transmitted without synchronization when the transmission mode is MU.

公开(公告)号：WO2018125718A1

公开(公告)日：2018-07-05

申请号：PCT/US2017/067646

申请日：2017-12-20

Applicant: HUGHES NETWORK SYSTEMS, LLC

Inventor： MIRRA, Steven Dominic ,  JONG, James Jehong ,  DURVASULA, Bhanu

IPC: H04W4/00

Abstract: A system and method for determining hierarchical link quality metrics in a communication system, and performing different routines to optimize operation of the communication system based on the link quality metrics. Data is collected for a predetermined interval, and a carrier link quality is determined for each terminal utilizing different carriers in the communication system. A link quality is determined for each terminal type, and a beam link quality is determined for each beam in the system. Different thresholds are set so that optimization routines can be performed based on the current link quality values.