Source: http://www.google.com/patents/US20080146145
Timestamp: 2017-10-24 05:21:44
Document Index: 110170122

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. 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 US20080146145 - Satellite communication system and method with asymmetric feeder and service ... - Google Patents
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...http://www.google.com/patents/US20080146145?utm_source=gb-gplus-sharePatent US20080146145 - Satellite communication system and method with asymmetric feeder and service frequency bands
Publication number US20080146145 A1
Application number US 11/954,654
Also published as EP2100465A2, EP2100465A4, US7869759, WO2008076877A2, WO2008076877A3, WO2008076877A9
Publication number 11954654, 954654, US 2008/0146145 A1, US 2008/146145 A1, US 20080146145 A1, US 20080146145A1, US 2008146145 A1, US 2008146145A1, US-A1-20080146145, US-A1-2008146145, US2008/0146145A1, US2008/146145A1, US20080146145 A1, US20080146145A1, US2008146145 A1, US2008146145A1
Inventors Charles N. Pateros, Mark D. Dankberg
Patent Citations (35), Referenced by (58), Classifications (6), Legal Events (3)
US 20080146145 A1
generating uplink feeder beams and downlink feeder beams, said uplink feeder beams and downlink feeder beams being associated with a plurality of gateways via a satellite, said uplink feeder beams and said downlink feeder beams being characterized by a selection of feeder signals of first frequencies and first polarization slots, and each said feeder signal corresponding with a different color in a first selection of colors in a color map, each color being characterized by a unique frequency band and unique signal polarization; and
generating a plurality of uplink service beams and downlink service beams, said uplink service beams and downlink service beams being associated with a plurality of user subscriber terminals via the satellite, said service beams being characterized by a selection of second frequencies and second polarization slots, and each said feeder signal corresponding with a different color in a second selection of colors in said color map, said second color selection being less in number than said first color selection, such that the feeder frequency bands and the service frequency bands are asymmetric among available frequency channels.
reusing frequencies in the feeder beams between said satellite and said plurality of gateways, wherein the gateway beams transmit to and from the satellite re-using at least one common frequency channel of the feeder beams, such that allocation of frequency and polarization slots of the feeder beams is asymmetric.
modifying a four-color reuse pattern for assigning spot coverage areas so that the ratio of a select group of the four colors in the pattern is not equal, thereby allowing for asymmetric service frequency usage on service downlinks and thereby requiring fewer than conventional numbers of types of frequency translators.
4. The method according to claim 3, wherein uplink service links employ three identical frequency bandwidths, each with two orthogonal polarizations, and downlink feeder links employ two frequency bandwidths, each with two orthogonal polarizations, and wherein the frequency bandwidths between the uplink feeder links and the downlink feeder links are reused asymmetrically to reduce the required number of separate and unique elements on a satellite.
providing feeder beams and service beams including uplink feeder beams to a relay satellite from a gateway ground station and downlink service beams between the relay satellite and a plurality of subscriber terminals, each service beam being associated with a different at least partially non-overlapping service beam coverage area, to form a plurality of service beam coverage areas;
wherein the plurality of the downlink service beams is transmitted to the subscriber terminals by re-using at least one common downlink frequency channel, the allocation of downlink service beam channels being asymmetrically allocated among available downlink frequencies.
8. A method for communicating data in a multibeam satellite system utilizing frequency re-use comprising:
providing feeder beams and service beams including uplink service beams and downlink feeder beams between a satellite and a plurality of gateways, each feeder beam being associated with a different at least partially non-overlapping service beam coverage area, to form a plurality of feeder beam coverage areas,
wherein the plurality of the uplink service beams is transmitted to the satellite by re-using at least one common uplink frequency channel, and an associated downlink feeder beam combines the information of the plurality of uplink service beams received by the satellite, the satellite re-using for reception said at least one common uplink frequency channel.
9. A system for communicating data in a multibeam satellite system utilizing frequency re-use comprising:
a gateway ground station providing feeder beams and service beams including uplink feeder beams to a relay satellite and downlink service beams between the relay satellite and a plurality of subscriber terminals, each service beam being associated with a different at least partially non-overlapping service beam coverage area, to form a plurality of service beam coverage areas;
10. The system according to claim 9 wherein said gateway ground station further provides downlink feeder beams between the satellite and the plurality of gateways, to form a plurality of feeder beam coverage areas,
11. A satellite communication system for communicating between a central source and a plurality of user terminals via feeder frequency bands and service frequency bands, said system comprising:
a gateway ground station configured for generating uplink feeder beams and downlink feeder beams via a satellite, said uplink feeder beams and said downlink feeder beams being characterized by a selection of feeder signals of first frequencies and first polarization slots, and each said feeder signal corresponding with a different color in a first selection of colors in a color map, each color being characterized by a unique frequency band and unique signal polarization; and
a plurality of user subscriber terminals configured for generating a plurality of uplink service beams and downlink service beams, said service beams being characterized by a selection of second frequencies and second polarization slots, and each said feeder signal corresponding with a different color in a second selection of colors in said color map, said second color selection being less in number than said first color selection;
a controller configured for reusing frequencies in the feeder beams between said satellite and said plurality of gateways, wherein the gateway beams transmit to and from the satellite re-using at least one common frequency channel of the feeder beams, such that allocation of frequency and polarization slots of the feeder beams is asymmetric.
13. A satellite communication system employing a method for communicating between a central source and a plurality of user terminals via feeder frequency bands and service frequency bands, the system comprising:
a controller operative to modify a four-color reuse pattern for assigning spot coverage areas so that the ratio of a select group of the four colors in the pattern is not equal, thereby allowing for asymmetric service frequency usage on service downlinks and thereby requiring fewer than conventional numbers of types of frequency translators.
14. The system according to claim 13, wherein uplink service links employ three identical frequency bandwidths, each with two orthogonal polarizations, and downlink feeder links employ two frequency bandwidths, each with two orthogonal polarizations, and wherein the frequency bandwidths between the uplink feeder links and the downlink feeder links are reused asymmetrically to reduce the required number of separate and unique elements on a satellite.
16. The system according to claim 13, wherein the downlink service beams include one of four carriers, wherein the carriers are chosen from two frequency bands, each of the two frequency bands being capable of being separated by right hand circular polarization (RHCP) and left hand circular polarization (LHCP), to form four unique combinations of frequency and polarization (colors), and wherein each of the four carriers is transmitted using one of the four unique combinations of frequency and polarization to spot beam cells according to the four color pattern.
U.S. Provisional Patent Application No. 60/827,924 filed Oct. 3, 2006 for “Adaptive Use of Satellite Uplink Bands” (Attorney Docket No. 017018-008000US);
U.S. Provisional Patent Application No. 60/827,927, filed Oct. 3, 2006 for “Frequency Re-use for Service and Gateway Beams” (Attorney Docket No. 017018-008300US);
U.S. Provisional Patent Application No. 60/827,959, filed Oct. 3, 2006 for “Satellite Architecture” (Attorney Docket No. 017018-008500US);
U.S. Provisional Patent Application No. 60/827,960, filed Oct. 3, 2006 for “Piggy-back Satellite Architecture” (Attorney Docket No. 017018-008600US);
U.S. Provisional Patent Application No. 60/827,964, filed Oct. 3, 2006 for “Placement of Gateways Away from Service Beams” (Attorney Docket No. 017018-008800US)
U.S. Provisional Patent Application No. 60/828,021, filed Oct. 3, 2006 for “Multi-Service Provider Subscriber Authentication” (Attorney Docket No. 017018-007700US);
U.S. Provisional Patent Application No. 60/828,033, filed Oct. 3, 2006 “Large Packet Concatenation in Satellite Communication System” (Attorney Docket No. 017018-008200US);
U.S. Provisional Patent Application No. 60/828,037, filed Oct. 3, 2006 “Upfront Delayed Concatenation In Satellite Communication System” (Attorney Docket No. 017018-010500US);
U.S. Provisional Patent Application No. 60/828,014, filed Oct. 3, 2006 for “Map-Trigger Dump Of Packets In Satellite Communication System” (Attorney Docket No. 017018-010600US);
U.S. Provisional Patent Application No. 60/827,985, filed Oct. 3, 2006 for “Aggregate Rate Modem” (Attorney Docket No. 017018-008900US);
U.S. Provisional Patent Application No. 60/827,988, filed Oct. 3, 2006 for “Packet Reformatting for Downstream Links” (Attorney Docket No. 017018-009000US);
U.S. Provisional Patent Application No. 60/827,992, filed Oct. 3, 2006 for “Downstream Waveform Modification” (Attorney Docket No. 017018-009100US);
U.S. Provisional Patent Application No. 60/827,994, filed Oct. 3, 2006 for “Upstream Resource Optimization” (Attorney Docket No. 017018-009200US);
U.S. Provisional Patent Application No. 60/827,999, filed Oct. 3, 2006 for “Upstream MF-TDMA Frequency Hopping” (Attorney Docket No. 017018-009300US);
U.S. Provisional Patent Application No. 60/828,002, filed Oct. 3, 2006 for “Downstream Virtual Channels Multiplexed on a Per Symbol Basis” (Attorney Docket No. 017018-009400US);
U.S. Provisional Patent Application No. 60/827,997, filed Oct. 3, 2006 for “Modified Downstream Waveform” (Attorney Docket No. 017018-010800US);
U.S. Provisional Patent Application No. 60/828,038, filed Oct. 3, 2006 for “Adapted DOCSIS Circuit for Satellite Media” (Attorney Docket No. 017018-009500US);
U.S. Provisional Patent Application No. 60/828,045, filed Oct. 3, 2006 for “Satellite Downstream Virtual Channels” (Attorney Docket No. 017018-009700US);
U.S. Provisional Patent Application No. 60/828,035, filed Oct. 3, 2006 for “Satellite Broadband with Less than One Country of Coverage” (Attorney Docket No. 017018-010300US);
U.S. Provisional Patent Application No. 60/828,032, filed Oct. 3, 2006 for “Multi-User Detection in Satellite Return Link” (Attorney Docket No. 017018-010100US);
U.S. Provisional Patent Application No. 60/828,034, filed Oct. 3, 2006 for “Multi-rate Downstreaming in Multiple Virtual Channel Environment” (Attorney Docket No. 017018-010200US);
U.S. Provisional Patent Application No. 60/828,047, filed Oct. 3, 2006 for “Satellite Upstream Load Balancing” (Attorney Docket No. 017018-009900US);
U.S. Provisional Patent Application No. 60/828,048, filed Oct. 3, 2006 for “Satellite Upstream/Downstream Virtual Channel Architecture” (Attorney Docket No. 017018-010000US); and
U.S. Provisional Patent Application No. 60/828,046, filed Oct. 3, 2006 for “Virtual Downstream Channel Load Balancing” (Attorney Docket No. 017018-009800US).
Feeder Beam Service Beam
Number Color Color Number
1 1UL 1DL 1
1UR 1DR 2
2UL 2DL 3
2UR 2DR 4
2 1UL 1DL 5
1UR 1DR 6
2UL 2DL 7
2UR 2DR 8
3 1UL 1DL 9
1UR 1DR 10
2UL 2DL 11
2UR 2DR 12
4 1UL 1DL 13
1UR 1DR 14
2UL 2DL 15
2UR 2DR 16
5 1UL 1DL 17
1UR 1DR 18
2UL 2DL 19
2UR 2DR 20
6 1UL 1DL 21
1UR 1DR 22
2UL 2DL 23
2UR 2DR 24
7 1UL 1DL 25
1UR 1DR 26
2UL 2DL 27
2UR 2DR 28
8 1UL 1DL 29
1UR 1DR 30
1UL 1DL 31
1UR 1DR 32
9 1UL 1DL 33
1UR 1DR 34
2UL 2DL 35
2UR 2DR 36
10 1UL 1DL 37
1UR 1DR 38
2UL 2DL 39
2UR 2DR 40
11 1UL 1DL 41
1UR 1DR 42
2UL 2DL 43
2UR 2DR 44
12 1UL 1DL 45
1UR 1DR 46
2UL 2DL 47
2UR 2DR 48
13 1UL 1DL 49
1UR 1DR 50
2UL 2DL 51
2UR 2DR 52
14 1UL 1DL 53
1UR 1DR 54
2UL 2DL 55
2UR 2DR 56
15 1UL 1DL 57
1UR 1DR 58
2UL 2DL 59
2UR 2DR 60
3UL 1DL 5
3UR 1DR 6
2 1UL 1DL 7
1UR 1DR 8
2UL 2DL 9
2UR 2DR 10
3UL 2DL 11
3UR 2DR 12
3 1UL 1DL 13
3UL 1DL 17
3UR 1DR 18
4 1UL 1DL 19
1UR 1DR 20
2UL 2DL 21
2UR 2DR 22
3UL 2DL 23
3UR 2DR 24
5 1UL 1DL 25
3UL 1DL 29
3UR 1DR 30
6 1UL 1DL 31
2UL 2DL 33
2UR 2DR 34
3UL 2DL 35
3UR 2DR 36
7 1UL 1DL 37
3UL 1DL 41
3UR 1DR 42
8 1UL 1DL 43
1UR 1DR 44
2UL 2DL 45
2UR 2DR 46
3UL 2DL 47
3UR 2DR 48
9 1UL 1DL 49
3UL 1DL 53
3UR 1DR 54
10 1UL 1DL 55
1UR 1DR 56
2UL 2DL 57
2UR 2DR 58
3UL 2DL 59
3UR 2DR 60
3UL 1DL 11
3UR 1DR 12
3UL 1DL 23
3UR 1DR 24
3UL 1DL 35
3UR 1DR 36
3UL 1DL 47
3UR 1DR 48
3UL 1DL 59
3UR 1DR 60
Signal 18.3-18.8 GHz 18.8-19.3 GHz 19.7-20.2 GHz 28.1-28.6 GHz 28.6-29.1 GHz 29.5-30.0 GHz
Uplink Feeder 1UL 2UL 3UL
1UR 2UR 3UR
Downlink 1DL 2DL
Service 1DR 2DR
Uplink 1UL 2UL
Service 1UR 2UR
Downlink 1DL 2DL 3DL
Feeder 1DR 2DR 3DR
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Cooperative Classification H04B7/1858, H04B7/18515
European Classification H04B7/185S4, H04B7/185D4
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATEROS, CHARLES N.;DANKBERG, MARK D.;REEL/FRAME:020480/0735;SIGNING DATES FROM 20080201 TO 20080207
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATEROS, CHARLES N.;DANKBERG, MARK D.;SIGNING DATES FROM20080201 TO 20080207;REEL/FRAME:020480/0735