Source: http://www.google.com/patents/US7869759?dq=6760745
Timestamp: 2014-08-20 19:43:38
Document Index: 49308917

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 11', 'Application No. 11', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US7869759 - Satellite communication system and method with asymmetric feeder and service ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsSystem and method for communicating data in a multibeam satellite system having feeder beams associated with a plurality of gateways and a plurality of service beams associated with a plurality of user subscriber terminals utilizing frequency re-use by service beams between a satellite and a plurality...http://www.google.com/patents/US7869759?utm_source=gb-gplus-sharePatent US7869759 - Satellite communication system and method with asymmetric feeder and service frequency bandsAdvanced Patent SearchPublication numberUS7869759 B2Publication typeGrantApplication numberUS 11/954,654Publication dateJan 11, 2011Filing dateDec 12, 2007Priority dateDec 14, 2006Also published asEP2100465A2, EP2100465A4, US20080146145, WO2008076877A2, WO2008076877A3, WO2008076877A9Publication number11954654, 954654, US 7869759 B2, US 7869759B2, US-B2-7869759, US7869759 B2, US7869759B2InventorsCharles N. Pateros, Mark D. DankbergOriginal AssigneeViasat, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (40), Non-Patent Citations (22), Referenced by (10), Classifications (9), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetSatellite communication system and method with asymmetric feeder and service frequency bandsUS 7869759 B2Abstract System and method for communicating data in a multibeam satellite system having feeder beams associated with a plurality of gateways and a plurality of service beams associated with a plurality of user subscriber terminals utilizing frequency re-use by service beams between a satellite and a plurality of subscriber terminals, wherein the service beams are transmitted to and from the satellite by re-using at least one common frequency channel of the service beam, such that the beam allocation is asymmetric among available frequency channels. The result is a potential for reduction of transponder resources.
CROSS-REFERENCES TO RELATED AND OTHER APPLICATIONS This application claims the benefit, under 35 U.S.C 119(e), of U.S. Provisional Patent Application Ser. No. 60/870,080 filed Dec. 14, 2006.
U.S. Provisional Patent Application No. 60/827,924 filed Oct. 3, 2006 for �Adaptive Use of Satellite Uplink Bands�, now U.S. patent application Ser. No. 12/406,861; U.S. Provisional Patent Application No. 60/827,927, filed Oct. 3, 2006 for �Frequency Re-use for Service and Gateway Beams�, now U.S. patent application Ser. No. 12/406,870; U.S. Provisional Patent Application No. 60/827,959, filed Oct. 3, 2006 for �Satellite Architecture�, now U.S. patent application Ser. No. 12/406,880; U.S. Provisional Patent Application No. 60/827,960, filed Oct. 3, 2006 for �Piggy-back Satellite Architecture�, now U.S. patent application Ser. No. 12/406,887; U.S. Provisional Patent Application No. 60/827,964, filed Oct. 3, 2006 for �Placement of Gateways Away from Service Beams�, now U.S. patent application Ser. No. 12/187,051; U.S. Provisional Patent Application No. 60/828,021, filed Oct. 3, 2006 for �Multi-Service Provider Subscriber Authentication�, now U.S. patent application Ser. No. 12/406,847; U.S. Provisional Patent Application No. 60/828,033, filed Oct. 3, 2006 �Large Packet Concatenation in Satellite Communication System�, now U.S. patent application Ser. No. 12/408,543; U.S. Provisional Patent Application No. 60/828,037, filed Oct. 3, 2006�Upfront Delayed Concatenation In Satellite Communication System�, now U.S. patent application Ser. No. 12/406,900; U.S. Provisional Patent Application No. 60/828,014, filed Oct. 3, 2006 for �Map-Trigger Dump Of Packets In Satellite Communication System�, now U.S. patent application Ser. No. 12/408,614; U.S. Provisional Patent Application No. 60/828,044, filed Oct. 3, 2006 for �Web/Bulk Transfer Preallocation Of Upstream Resources In A Satellite Communication System�, now U.S. patent application Ser. No. 12/409,306; U.S. Continuation in Part Patent Application No. 11/538,431, filed Oct. 3, 2006 for �Code Reuse Multiple Access For A Satellite Return Link�, which has been superseded by patent application Ser. No. 12/356,842; U.S. Continuation in Part Patent Application No. 11/538,429, filed Oct. 3, 2006 for �Method for Congestion Management�; U.S. Provisional Patent Application No. 60/827,985, filed Oct. 3, 2006 for �Aggregate Rate Modem,� which has been superseded by patent application Ser. No. 12/174,525; U.S. Provisional Patent Application No. 60/827,988, filed Oct. 3, 2006 for �Packet Reformatting for Downstream Links,� which has been superseded by patent application Ser. No. 12/174,222; U.S. Provisional Patent Application No. 60/827,992, filed Oct. 3, 2006 for �Downstream Waveform Modification,� which has been superseded by patent application Ser. No. 12/174,173; U.S. Provisional Patent Application No. 60/827,994, filed Oct. 3, 2006 for �Upstream Resource Optimization,� which has been superseded by patent application Ser. No. 12/174,674; U.S. Provisional Patent Application No. 60/827,999, filed Oct. 3, 2006 for �MF-TDMA Frequency Hopping,� which has been superseded by patent application Ser. No. 12/174,676; U.S. Provisional Patent Application No. 60/828,002, filed Oct. 3, 2006 for �Downstream Virtual Channels Multiplexed on a Per Symbol Basis,�; U.S. Provisional Patent Application No. 60/827,997, filed Oct. 3, 2006 for �Broadband Demodulator for Modified Downstream Waveform,� which has been superseded by patent application Ser. No. 12/174,196; U.S. Provisional Patent Application No. 60/828,038, filed Oct. 3, 2006 for �Adapted DOCSIS Circuit for Satellite Media� which has been superseded by patent application Ser. No. 12/411,312; U.S. Provisional Patent Application No. 60/828,045, filed Oct. 3, 2006 for �Satellite Downstream Virtual Channels,� which has been superseded by patent application Ser. No. 12/411,738 for �High Data Rate Multiplexing Satellite Stream to Low Data Rate Subscriber Terminals�; U.S. Provisional Patent Application No. 60/828,035, filed Oct. 3, 2006 for �Satellite Broadband with Less than One Country of Coverage,� which has been superseded by patent application Ser. No. 12/411,704 for �Satellite system Optimization�; U.S. Provisional Patent Application No. 60/828,032, filed Oct. 3, 2006 for �Multi-User Detection in Satellite Return Link,� which has been superseded by patent application Ser. No. 12/411,694; U.S. Provisional Patent Application No. 60/828,034, filed Oct. 3, 2006 for �Multi-rate Downstreaming in Multiple Virtual Channel Environment,� which has been superseded by patent application Ser. No. 12/411,748; U.S. Provisional Patent Application No. 60/828,047, filed Oct. 3, 2006 for �Satellite Upstream Load Balancing�; U.S. Provisional Patent Application No. 60/828,048, filed Oct. 3, 2006 for �Satellite Upstream/Downstream Virtual Channel Architecture,� which has been superseded by patent application Ser. No. 12/411,744; and U.S. Provisional Patent Application No. 60/828,046, filed Oct. 3, 2006 for �Virtual Downstream Channel Load Balancing,� which has been superseded by patent application Ser. No. 12/411,692 for Intra-Domain Load Balancing. STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT Not Applicable
BACKGROUND OF THE INVENTION The present invention relates to wireless communications in general and, in particular, to a satellite communications network employing frequency reuse techniques.
SUMMARY OF THE INVENTION According to the invention, a method based on mathematical color mapping techniques employs asymmetric feeder and service frequency bands for communicating data in a multibeam satellite system serving multiple service areas. In accordance with industry practice, each color is characterized by a unique frequency band and unique antenna polarization. Each gateway provides an uplink feeder beam consisting of a number of signals of different colors whereas subscriber terminals are segregated among a fewer number of color assignments in each service beam. In one embodiment, each color corresponds to a similar bandwidth signal.
DESCRIPTION OF THE DRAWINGS FIG. 1A and FIG. 1B illustrate forward and reverse path communication between a single gateway and a set of spot beam service areas according to the invention.
DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS The method described above relates to a satellite system that adopts multiple levels of frequency re-use in an asymmetric manner to maximize usage of available frequency bandwidth and to simplify system hardware. In addition to employing frequency re-use for multiple service beams such that different service beams may occupy a common frequency channel, the system further employs frequency re-use between service beams and feeder beams by locating gateways in regions separated from coverage areas of service beams. In addition, asymmetric frequency use is employed for feeder beams and service beams to allow further gains in gateway efficiency.
The satellite 105 is functionally depicted as six �bent pipe� connections between a feeder and service link. Carrier frequency can be changed through the satellite 105 �bent pipe� connections along with the orientation of polarization. The satellite 105 converts each downstream uplink 135 signal into a downstream downlink signal 150.
Referring next to FIG. 5, an embodiment of a return link distribution system is shown. This embodiment shows six upstream uplinks 145 from six sets of subscriber terminals 125. A �bent pipe� satellite 105 takes the upstream uplinks 145, optionally changes carrier frequency and/or polarization (not shown), and then redirects them as upstream downlinks 140 to a spot beam 225. In this embodiment, the carrier frequency changes between the uplink 145 and the downlink 140, but the polarization remains the same. Because the feeder spot beams 225 are not in the coverage area of the service beams, the same frequency pairs may optionally be reused for both service links 145 and feeder links 140 but generally are not reused in this manner.
An exemplary asymmetric frequency and polarization table is illustrated below. Here, the �colors� of signals are denoted by a three character symbol. For example, the first color is 1UL�the first uplink frequency band (28.1-28.6 GHz in this example).
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5485464Oct 21, 1993Jan 16, 1996Hughes Aircraft CompanyCommunication protocol for a high data rate satellite communication systemUS5825325Sep 17, 1996Oct 20, 1998Com Dev LimitedIntersatellite communications systemsUS5907541Oct 20, 1997May 25, 1999Lockheed Martin Corp.Architecture for an integrated mobile and fixed telecommunications system including a spacecraftUS6449267May 25, 1999Sep 10, 2002Hughes Electronics CorporationMethod and apparatus for medium access control from integrated services packet-switched satellite networksUS6512749 *Sep 29, 1999Jan 28, 2003Trw Inc.Downlink transmission and reception techniques for a processing communication satelliteUS6690645Dec 6, 1999Feb 10, 2004Nortel Networks LimitedMethod and apparatus for active queue management based on desired queue occupancyUS6694137Apr 29, 2003Feb 17, 2004Etherware, LlcMethod and system for providing broadband mobile access from geostationary satellites to platforms using small, low profile antennasUS6704543May 23, 2000Mar 9, 2004Ems Technologies, Inc.Multi-beam satellite communications systemUS6707916 *Mar 16, 1999Mar 16, 2004Northrop Grumman CorporationMitigation of false co-channel uplink reception in a processing satellite communication system using scrambling sequencesUS6751458Jul 7, 2000Jun 15, 2004The Directv Group, Inc.Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissionsUS6778509Nov 16, 2000Aug 17, 2004Hughes Electronics CorporationMAC layer protocol for a satellite based packet switched servicesUS6850732Mar 29, 2002Feb 1, 2005Wengen Wireless LlcScalable satellite data communication system that provides incremental global broadband service using earth-fixed cellsUS6865388Aug 9, 2001Mar 8, 2005Hughes Electronics CorporationDynamic queue depth management in a satellite terminal for bandwidth allocations in a broadband satellite communications systemUS6975600Sep 18, 2000Dec 13, 2005The Directv Group, Inc.Multimode transmission system using TDMAUS6985455Aug 2, 2000Jan 10, 2006Hughes Electronics CorporationMethod and system for providing satellite bandwidth on demand using multi-level queuingUS7010265May 22, 2002Mar 7, 2006Microsoft CorporationSatellite receiving system with transmodulating outdoor unitUS7024158Apr 25, 2002Apr 4, 2006Northrop Grumman CorporationBroadband communication satelliteUS7065355Jan 21, 2003Jun 20, 2006The Boeing CompanyMethod and apparatus for very high data rate satellite transmissionUS7319666Jan 9, 2003Jan 15, 2008Thomson LicensingMethod and apparatus for concatenating and piggybacking data packetsUS7508785Dec 12, 2002Mar 24, 2009Broadcom CorporationDownstream time domain based adaptive modulation for DOCSIS based applicationsUS7535863Apr 14, 2004May 19, 2009Broadcom CorporationMethod and system for adaptive modulation schedulingUS20010053152Feb 15, 2001Dec 20, 2001Dolors SalaMethod, system and computer program product for scheduling upstream communicationsUS20020004369Feb 15, 2001Jan 10, 2002Frank KellySystem and method for managing return channel bandwidth in a two-way satellite systemUS20020037734Jan 8, 2001Mar 28, 2002Vesuvius, Inc.Communique system with hierarchical communique coverage areas in cellular communication networksUS20020110094Feb 13, 2001Aug 15, 2002Reddy Naveen S.Spot beam hopping packet scheduler systemUS20020187747Jun 12, 2001Dec 12, 2002Sawdey James D.Method and appartus for dynamic frequency bandwidth allocationUS20030032391Aug 9, 2001Feb 13, 2003Craig SchweinhartLow latency handling of transmission control protocol messages in a broadband satellite communications systemUS20030050008Mar 29, 2002Mar 13, 2003Teledesic Llc.Scalable satellite data communication system that provides incremental global broadband service using earth-fixed cellsUS20030050060Aug 29, 2002Mar 13, 2003William LeslieCommunications architecture utilizing local satellite processorsUS20030069034Oct 7, 2002Apr 10, 2003Lg Electronics Inc.Method for processing query effectively in radio data broadcast environmentUS20030203733Apr 29, 2003Oct 30, 2003Etherware, LlcMethod and system for providing broadband mobile access from geostationary satellites to platforms using small, low profile antennasUS20040014472 *Jul 17, 2002Jan 22, 2004De La Chapelle MichaelManaging satellite fixed beam uplink using virtual channel assignmentsUS20040018849Mar 25, 2003Jan 29, 2004Schiff Leornard N.Queue length-based data transmission for wireless communicationUS20040162020Apr 23, 2003Aug 19, 2004Broadcom CorporationQueue depth extended headers for DOCSIS based broadband communication systemsUS20040198218Jan 22, 2004Oct 7, 2004Linsky Stuart T.Gated power time division downlink for a processing satelliteUS20050058229Sep 10, 2004Mar 17, 2005Alagha Nader S.Hybrid frequency offset estimatorUS20050265376May 23, 2005Dec 1, 2005Chapman John TWideband upstream protocolEP1705838A1Mar 15, 2006Sep 27, 2006Broadcom CorporationUpstream channel bonding using legacy maps in a cable communications systemWO2000052849A1Mar 3, 2000Sep 8, 2000Hughes Electronics CorpSystem for providing satellite bandwidth on demand employing uplink frame formatting for smoothing and mitigating jitter and dynamically changing numbers of contention and data channelsWO2008076877A2Dec 14, 2007Jun 26, 2008Dankberg Mark DSatellite communication system and method with asymmetric feeder and service frequency bands* Cited by examinerNon-Patent CitationsReference1Atia, A.E., "Ka-Band Satellite System Architecture For Local Loop Internet Access," Microwave Symposium Digest, 2001 IEEE MTT-S Digest,International, Phoenix, AZ, (2001) vol. 2, pp. 1133-1136.2Atia, A.E., et al., "Ka-Band Satellite System Architecture For Local Loop Internet Access," Fifth Ka Band Utilization Conference: Oct. 18-20, 1999, Taormina, Italy, (2000) Genova: Instituto Internationale Delle Comunicazioni.3Bambos, et al., "Globally Constrained Power Control Across Multiple Channels In Wireless Data Networks" Mobile Networks and Applications, Sep. 2001, vol. 6, pp. 427-434.4Bhatia, et al., "Empirical Evaluation of Upstream Throughput In a DOCSIS Access Network" 2005 1st International Conference on Multimedia Services Access Networks: Jun. 13-15, 2005.5Connors et al., "A Medium Access Control Protocol For Real Time Video Over High Latency Satellite Channels," Mobile Networks And Applications, ACM, New York, Jan. 1, 2002, pp. 9-20, ISSN: 1383-469X.6Connors et al., "Response Initiated Multiple Access (RIMA), A Medium Access Control Protocol for Satellite Channels," GLOBECOM'00 IEEE Global Telecommunications Conference, New York NY Nov. 27, 2000, pp. 1124-1129. ISBN: 078-0-7803-6452-3.7Elshabrawy, "MAC Architecture for Broadband Satellite Access Systems," Apr. 20. 2000, pp. III-100. [retrieved on May 29, 2008] Retrieved from the internet: .8Elshabrawy, "MAC Architecture for Broadband Satellite Access Systems," Apr. 20. 2000, pp. III-100. [retrieved on May 29, 2008] Retrieved from the internet: <URL:http://users.enc.concordia.ca/{tahar/theses/Tallal-Thesis.pdf>.9Evans et al., "Providing Differentiated Service to TCP Flows Over Bandwidth on Demand Geostationary Satellite Networks," IEEE Journal on Selected Areas in Communications, vol. 22, No. 2, Feb. 1, 2004, pp. 333-347 ISSN: 0733-8716.10Grace et al., "Burst Targeted Demand Assignment Multiple-Access for Broadband Internet Service Delivery Over Geostationary Satellite," IEEE Journal On Selected Areas in Communications, vol. 22, No. 3, Apr. 2004, pp. 546-558. ISSN: 0733-8716.11Hindin, E., "Saywhat?" Network World, Aug. 1998, vol. 37, pp. 37-44.12International Preliminary Report on Patentability and Written Opinion for PCT/US2007/087568, dated Jun. 16, 2009, 6 pages total.13International Search Report PCT/US07/87568.14Le-Ngoc et al., "Performance Analysis of CFDAMA-PB Protocol for Packet Satellite Communications," IEEE Transactions on Communications, vol. 46, No. 9, Sep. 1998.15Mitchell et al., "Improved Medium Access Control For Data Traffic Via Satellite Using The CFDAMA Protocol," IEE Seminar On Broadband Satellite: The Critical Success Factorstechnology, Services And Markets, pp. 18/01-18/07 XP001061698.16Ramirez, et al., "Single-feed circularly polarized microstrip ring antenna and arrays," IEEE Transactions on Antennas and Propagation, vol. 48, No. 7, p. 1040-1047, Jul. 2000. [retrieved on Mar. 26, 2008]. Retrieved from the internet: .17Ramirez, et al., "Single-feed circularly polarized microstrip ring antenna and arrays," IEEE Transactions on Antennas and Propagation, vol. 48, No. 7, p. 1040-1047, Jul. 2000. [retrieved on Mar. 26, 2008]. Retrieved from the internet: <URL: http://www.ece.ucl.edu/rfmems/publications/papers/antenna/J009.pdf>.18Satellite One, "Spot Beam Technology," [online], [retrieved on Mar. 6, 2009]. Retreived from the internet .19Satellite One, "Spot Beam Technology," [online], [retrieved on Mar. 6, 2009]. Retreived from the internet <URL: http://www.satelliteone.com/dish/support/Spot�Beam�Short.pdf>.20Todorova et al., "Quality-of-Service-Oriented Media Access Control for Advanced Mobile Multimedia Satellite Systems," Systems Sciences, 2003. Proceedings of the 36th Hawaii International Conference on System Sciences, Jan. 6-9, 2003, pp. 309-316. ISBN: 978-0-7695-1874-9.21Xiao, Y., "Efficient MAC Strategies for the IEEE 802.11n Wireless LANs"Wireless Communications and Mobile Computing, 2006, vol. 6, pp. 453-466.22Xiao, Y., "IEEE 802.11 Performance Enhancement via Concatenation And Piggyback Mechanisms" IEEE Transactions on Wireless Communications, Sep. 2005, vol. 4 Issue 5, pp. 2182-2192.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8107875Mar 25, 2009Jan 31, 2012Viasat, Inc.Placement of gateways near service beamsUS8254832 *Mar 18, 2009Aug 28, 2012Viasat, Inc.Frequency re-use for service and gateway beamsUS8538323 *Mar 18, 2009Sep 17, 2013Viasat, Inc.Satellite architectureUS8548377 *May 30, 2012Oct 1, 2013Viasat, Inc.Frequency re-use for service and gateway beamsUS8660482 *Apr 25, 2011Feb 25, 2014Space Systems/Loral, LlcBroadband satellite with dual frequency conversion and bandwidth aggregationUS20090291633 *Mar 18, 2009Nov 26, 2009Viasat, Inc.Frequency re-use for service and gateway beamsUS20090298416 *Mar 18, 2009Dec 3, 2009Viasat, Inc.Satellite ArchitectureUS20120094593 *Apr 25, 2011Apr 19, 2012Space Systems/Loral, Inc.Broadband Satellite with Dual Frequency Conversion and Bandwidth AggregationUS20120244798 *May 30, 2012Sep 27, 2012Viasat, Inc.Frequency re-use for service and gateway beamsUS20120276840 *Mar 18, 2009Nov 1, 2012Viasat, Inc.Satellite Architecture* Cited by examinerClassifications U.S. Classification455/12.1, 455/3.02, 455/427, 455/13.3International ClassificationH04B7/185Cooperative ClassificationH04B7/18515, H04B7/1858European ClassificationH04B7/185S4, H04B7/185D4Legal EventsDateCodeEventDescriptionMay 9, 2012ASAssignmentFree format text: SECURITY AGREEMENT;ASSIGNOR:VIASAT, INC.;REEL/FRAME:028184/0152Owner name: UNION BANK, N.A., CALIFORNIAEffective date: 20120509Feb 7, 2008ASAssignmentOwner name: VIASAT, INC., CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATEROS, CHARLES N.;DANKBERG, MARK D.;REEL/FRAME:020480/0735;SIGNING DATES FROM 20080201 TO 20080207Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATEROS, CHARLES N.;DANKBERG, MARK D.;SIGNING DATES FROM20080201 TO 20080207;REEL/FRAME:020480/0735RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google