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公开(公告)号：US11729684B1
公开(公告)日：2023-08-15
申请号：US17337214
申请日：2021-06-02
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Pavel Chikulaev , Sergii Ziuzin , David Sacks , Peter J. Worters , Darshan Purohit , Yashodhan Dandekar , Vladimir Skuratovich , Andrei Pushkin , Phillip E. Barber
CPC classification number: H04W36/06 , H04B7/0695 , H04B7/18513 , H04W36/08
Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a user terminal associated with a cell served by a satellite, a schedule of communications between the user terminal and one or more satellites; requesting, based on the schedule, a handover from a beam of the satellite to a different beam of one of the satellite or a different satellite; processing packets transmitted over the beam of the satellite and/or the different beam of the one of the satellite or the different satellite; performing the handover from the beam of the satellite to the different beam of the one of the satellite or the different satellite; and after the handover, transmitting, by the user terminal, one or more packets via the different beam of the one of the satellite or the different satellite.
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Patent Agency Ranking
公开(公告)号：US20230396324A1
公开(公告)日：2023-12-07
申请号：US18230493
申请日：2023-08-04
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Darshan Purohit , Yashodhan Dandekar , Pavel Chikulaev , David Sacks , Peter J. Worters , Phillip E. Barber
CPC classification number: H04B7/18513 , H04W74/0833 , H04W74/004 , H04W72/21 , H04L5/0007
Abstract: In an embodiment, a user terminal includes a communication module (CM) configured to generate an initial network entry request; an antenna assembly configured to find, in response to the initial network entry request, a satellite based on a search of a sky. The search of the sky includes sequentially changing a beam pointing direction of the antenna assembly. The satellite is assigned to downlink to a geographic cell associated with the user terminal. The user terminal includes a media access control (MAC) layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite.
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公开(公告)号：US11949496B1
公开(公告)日：2024-04-02
申请号：US17337218
申请日：2021-06-02
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Pavel Chikulaev , Sergii Ziuzin , David Sacks , Peter J. Worters , Darshan Purohit , Yashodhan Dandekar , Vladimir Skuratovich , Andrei Pushkin , Phillip E. Barber
CPC classification number: H04B7/18541 , H04B7/18513 , H04W36/0016 , H04W36/08 , H04W88/16
Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a satellite, a schedule of communications between the satellite and one or more gateways; requesting, based on the schedule, a handover from a link between the satellite and a gateway to a different link between the satellite and the gateway or a different gateway; prior to a completion of the handover, processing packets bicasted over the link between the satellite and the gateway and the different link between the satellite and the gateway or the different gateway; performing the handover from the link between the satellite and the gateway to the different link between the satellite and the gateway or the different gateway; and after the handover, transmitting, by the satellite, one or more packets via the different link between the satellite and the gateway or the different gateway.
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公开(公告)号：US20240031892A1
公开(公告)日：2024-01-25
申请号：US18231564
申请日：2023-08-08
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Pavel Chikulaev , Sergii Ziuzin , David Sacks , Peter J. Worters , Darshan Purohit , Yashodhan Dandekar , Vladimir Skuratovich , Andrei Pushkin , Phillip E. Barber
CPC classification number: H04W36/06 , H04W36/08 , H04B7/0695 , H04B7/18513
Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a user terminal associated with a cell served by a satellite, a schedule of communications between the user terminal and one or more satellites, wherein the one or more satellites comprises the satellite and a different satellite, and wherein the schedule of communications is obtained by the user terminal from the satellite; requesting, based on the schedule, a handover from a beam of the satellite to a different beam of one of the satellite or the different satellite; performing the handover from the beam of the satellite to the different beam of the one of the satellite or the different satellite; and after the handover, transmitting, by the user terminal, one or more packets via the different beam of the one of the satellite or the different satellite.
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公开(公告)号：US11757526B1
公开(公告)日：2023-09-12
申请号：US17334546
申请日：2021-05-28
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Darshan Purohit , Yashodhan Dandekar , Pavel Chikulaev , David Sacks , Peter J. Worters , Phillip E. Barber
CPC classification number: H04B7/18513 , H04W72/21 , H04W74/004 , H04W74/0833 , H04L1/0003 , H04L5/0007
Abstract: In an embodiment, a user terminal includes a connection manager component configured to generate an initial network entry request; an antenna assembly communicatively coupled to the connection manager and configured, in response to the initial network entry request, to find a satellite based on a search of a sky, wherein the satellite comprises a satellite assigned to downlink to a geographic cell associated with the user terminal; and a media access control (MAC) layer component communicatively coupled to the connection manager, the MAC layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite, wherein the particular portion is selected by the MAC layer component from among a plurality of portions of the uplink radio frame.
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公开(公告)号：US12218742B2
公开(公告)日：2025-02-04
申请号：US18230493
申请日：2023-08-04
Applicant: Space Exploration Technologies Corp.
Inventor： Chen Chen , Darshan Purohit , Yashodhan Dandekar , Pavel Chikulaev , David Sacks , Peter J. Worters , Phillip E. Barber
Abstract: In an embodiment, a user terminal includes a communication module (CM) configured to generate an initial network entry request; an antenna assembly configured to find, in response to the initial network entry request, a satellite based on a search of a sky. The search of the sky includes sequentially changing a beam pointing direction of the antenna assembly. The satellite is assigned to downlink to a geographic cell associated with the user terminal. The user terminal includes a media access control (MAC) layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite.
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