CN104618007A - Geosynchronous satellite TCP (transmission control protocol) sectional connection optimizing method - Google Patents
Geosynchronous satellite TCP (transmission control protocol) sectional connection optimizing method Download PDFInfo
- Publication number
- CN104618007A CN104618007A CN201410778881.XA CN201410778881A CN104618007A CN 104618007 A CN104618007 A CN 104618007A CN 201410778881 A CN201410778881 A CN 201410778881A CN 104618007 A CN104618007 A CN 104618007A
- Authority
- CN
- China
- Prior art keywords
- tcp
- protocol
- gateway
- satellite
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a geosynchronous satellite TCP optimizing method based on a sectional connection mechanism. Both sides of a transmitting end and a receiving end are provided with satellite protocol gateways; TCP connection is divided into three parts into transmitting end-terrestrial link-protocol gateway, protocol gateway-satellite link-protocol gateway, and protocol-terrestrial link-receiving end; terrestrial links adopt standard TCPs, and satellite links adopt exclusive TCPs; the exclusive TCPs achieve TCP connection optimization and are transparent to the terrestrial link TCPs through TCP protocol ACK (acknowledgement character) spoofing, data packet error control and reverse link bandwidth control. The geosynchronous satellite TCP optimizing method based on the sectional connection mechanism takes the characteristics of long time delay, high error rate and channel bandwidth asymmetry of satellite links into full consideration, sets the protocol gateways to enable the exclusive TCPs of the satellite links to be transparent to the terrestrial TCPs, thereby reducing the hardware modification cost, improving the bandwidth utilization rate of a satellite communication system and reducing the adverse effects of the satellite links on the TCPs.
Description
Technical field
The present invention relates to space communications technique field, particularly relate to a kind of synchronous satellite Transmission Control Protocol connection segment optimization method.
Background technology
Satellite communication refers to and utilizes satellite to forward or reflect radio waves as relay station, communicates between two or more earth ground stations.Satellite communication is utilized to have following advantage as relay transmission media: the beam coverage of satellite communication is wide, and communication distance is far away; Communication performance is stable, reliable; System Construction is rapid, easy.
Internet technology and related industry are in the situation of fast development at present, along with the sharply increase of terminal use's quantity, continuing to bring out of emerging service, and the rapid expansion of Internet industry coverage, the development of Internet technology and industry is faced with new opportunities and challenges.
The Transmission Control Protocol (TransmissionControl Protocol transmission control protocol) of extensive use in Internet data transmission technology, is connection-oriented transport layer protocol, provides reliable, stable transfer of data to upper layer application.In satellite communication system, use Transmission Control Protocol can solve the problem run in existing internet development process, reduce the soft and hardware improvement cost of user ground station access simultaneously, make satellite communication system and Ground Communication System have better compatibility.Therefore utilize satellite communication system to carry Internet technology and have very large advantage, but the satellite-based internetworking technologies of Design and implementation faces many challenges, wherein main problem is exactly the application problem of Transmission Control Protocol.The design original intention of Transmission Control Protocol on wire message way, provides stable, serves reliably, and satellite channel has long delay (synchronous satellite round-trip delay is about 500ms), high bit-error (about 10
-3) and the characteristic such as channel asymmetric (downlink bandwidth is much larger than upstream bandwidth), if Transmission Control Protocol to be directly applied to satellite communication, will the performance of restricted T CP agreement to a great extent.
Summary of the invention
For the above-mentioned defect existed in prior art, the present invention proposes a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism, to improve the performance of Transmission Control Protocol in satellite communication system.
A kind of synchronous satellite Transmission Control Protocol connection segment optimization method, specifically comprises:
Transmitting terminal-transmission the gateway of S1, synchronous satellite communications system, sends gateway-reception gateway, receives between gateway-receiving terminal and adopts three-way handshake mechanism to set up TCP connection respectively;
S2, set up after TCP connects, terrestrial links part (transmitting terminal-transmissions gateway, receive gateway-receiving terminal) adopts standard TCP protocol transmission data.The protocol gateway of satellite link part (sending gateway-reception gateway) processes the data message received and carries out data based on the proprietary Transmission Control Protocol of satellite link and sends and receive;
After S3, DTD, three parts that the built vertical TCP described in step S1 connects discharge TCP respectively and connect, and wait for that transmitting terminal sends TCP connection request next time.
Further, described TCP connection establishment, transmission and release stage, satellite relay transponder all adopts transparent forwarding mode, to save resource on star.
Further, different physical link is divided into different span lines for communication channel parameters difference by synchronous satellite communications system, comprises transmitting terminal-transmission gateway, transmission gateway-satellite relay forward-receives gateway, receives gateway-receiving terminal three part.
Further, described three-way handshake sets up the TCP stage, and transmission gateway, satellite relay forward, receive gateway does not deal with message data, adopts the mode of transparent forwarding message, to strengthen the stability of connection.
Further, at protocol gateway, the data message received is removed head, add the header of satellite link TCP specific protocols, object is compression head, improves packet efficiency of transmission over the satellite link.
Further, set up data buffer area at described protocol gateway, the tcp data bag of transmitting terminal or receiving terminal is stored in buffer area, guarantee that data retained copy before unconfirmed, in order to retransmitting.
Further, the proprietary Transmission Control Protocol of satellite link makes significantly Optimal improvements for satellite link long delay, high bit-error and asymmetric bandwidth characteristic, comprises deception ACK, packet error control, return link bandwidth control etc.
Further, described ACK cheats mode and comprises: consider in some cycles T, can think satellite channel parameters constant.In certain hour cycle T, transmitting terminal protocol gateway is after receiving data message, to receiving terminal protocol gateway transmitting channel probe messages, receive the provable channel status of feedback in the given time good, then send ack signal to transmitting terminal, in cycle T, transmitting terminal protocol gateway sends ACK confirmation, to improve efficiency of transmission directly to transmitting terminal main frame after receiving data message simultaneously; If do not receive feedback information in the given time, then think that present satellites channel status is not good, the transmission of the tcp data message that should slow down, avoids further degraded channel.
Further, described satellite link is one hop link sending out between receipts two ends, do not exist congested, therefore data must be transmitted over the satellite link in order in link, can not be out-of-sequence.
Further, described packet error control method comprises satellite protocol gateway provides a kind of negative retransmission mechanism (NACK), if there is interval between the packet packet number that reception protocol gateway receives, then can assert that the loss of packet is by error code instead of congested initiation, receive protocol gateway and can send NACK immediately, the message that request retransmission is lost.
Further, described return link bandwidth controls to be included in and receives a kind of timing of protocol gateway design affirmation mechanism, to the ACK message sending protocol gateway transmission oneself after reception protocol gateway receives the ACK message of some, transmission gateway is removed and confirms packet, release buffer memory.Reduce retrograde satellite link ACK message rate.
Further, in the described TCP transmission ED release connection stage, transmission gateway, satellite relay forward, receive gateway does not deal with message data, adopts the mode of transparent forwarding, to strengthen the stability of connection, guarantees to connect timely release.
Compared with prior art, the present invention has the following advantages:
The invention provides a kind of synchronous satellite Transmission Control Protocol connection segment optimization method, by setting up protocol gateway in satellite reception end, transmitting terminal both sides ground station, by Transmission Control Protocol connection segment, sending and receiving end, ground and protocol gateway adopt ground Transmission Control Protocol to communicate, and adopt the exclusive Transmission Control Protocol of satellite link to communicate between protocol gateway.Exclusive Transmission Control Protocol adopts the message format of class udp protocol (User Datagram Protocol, User Datagram Protocol), to improve the efficiency of transmission of communication data in band-limited satellite link.Meanwhile, exclusive Transmission Control Protocol makes Optimal improvements for satellite link long delay, high bit-error and asymmetric bandwidth characteristic, comprising: deception ACK, packet error control, return link bandwidth controls.TCP establishment of connection and release stage protocol gateway are not changed packet, take the mode of transparent forwarding to strengthen connective stability; For saving resource on star, satellite relay whole process adopts the mode of transparent forwarding.Therefore, communication link is divided into terrestrial links and satellite link two parts by setting up protocol gateway at transmitting-receiving two-end by Transmission Control Protocol connection segment optimization method provided by the invention, and for satellite link characteristic, Transmission Control Protocol is is significantly improved and optimizated, in data transmission procedure, consider satellite channel state simultaneously, reduce the error rate of the data that user receives, comprehensive lifting satellite communication system communication quality, elevator system performance.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for the invention;
Fig. 2 is satellite Transmission Control Protocol gateway protocol structural representation of the present invention;
Fig. 3 is deception ACK mode schematic flow sheet of the present invention;
Fig. 4 is return link bandwidth control structure schematic diagram of the present invention;
Fig. 5 is the synchronous satellite Transmission Control Protocol connection segment optimization system scene schematic diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Synchronous satellite Transmission Control Protocol connection segment optimization method of the present invention, steps flow chart as shown in Figure 1, specifically comprises the following steps:
Transmitting terminal-transmission the gateway of step S1, synchronous satellite communications system, sends gateway-reception gateway, receives between gateway-receiving terminal and adopts three-way handshake mechanism to set up TCP connection respectively.Satellite Transmission Control Protocol gateway protocol structural representation as shown in Figure 2.
Step S2, set up after TCP connects, terrestrial links part (transmitting terminal-transmissions gateway, receive gateway-receiving terminal) adopts standard TCP protocol transmission data.The protocol gateway of satellite link part (sending gateway-reception gateway) processes the data message received and carries out data based on the proprietary Transmission Control Protocol of satellite link and sends and receive.
After step S3, DTD, three parts that the built vertical TCP described in step S1 connects discharge TCP respectively and connect, and wait for that transmitting terminal sends TCP connection request next time.
By above-mentioned steps, sending and receiving end, ground and protocol gateway adopt ground standard Transmission Control Protocol to communicate, and adopt the exclusive Transmission Control Protocol of satellite link to communicate between protocol gateway.Exclusive Transmission Control Protocol adopts the message format of class udp protocol, to improve the efficiency of transmission of communication data in band-limited satellite link.Meanwhile, exclusive Transmission Control Protocol makes Optimal improvements for satellite link long delay, high bit-error and asymmetric bandwidth characteristic, comprising: deception ACK, packet error control, return link bandwidth controls.TCP establishment of connection and release stage protocol gateway are not changed packet, take the mode of transparent forwarding to strengthen connective stability; For saving resource on star.Satellite relay whole process adopts the mode of transparent forwarding.Therefore, communication link is divided into terrestrial links and satellite link two parts by setting up protocol gateway at transmitting-receiving two-end by Transmission Control Protocol connection segment optimization method provided by the invention, and for satellite link characteristic, Transmission Control Protocol is is significantly improved and optimizated, in data transmission procedure, consider satellite channel state simultaneously, reduce the error rate of the data that user receives, comprehensive lifting satellite communication system communication quality, elevator system performance.
Preferably, send out receiving end due to ground to communicate with ground station protocol gateway respectively, directly do not forward with satellite relay and contact, make satellite relay transparent to sending and receiving end, ground, decrease terrestrial links improvement cost, adopt exclusive Transmission Control Protocol communication between protocol gateway simultaneously, efficiency of transmission can be improved further.
The exclusive Transmission Control Protocol of satellite link is exactly after detecting current channel conditions by probe messages, by compressing data header at protocol gateway of making a start, to improve the efficiency of transmission of data message on satellite link, simultaneously according to satellite channel situation adjustment data-message transmission mode, the reason of correct differentiation obliterated data message, further degraded channel can be avoided, improve system bandwidth utilance.
The exclusive Transmission Control Protocol of satellite link also comprises: deception ACK, packet error controls, return link bandwidth control etc.
Deception ACK mode schematic flow sheet as shown in Figure 3.ACK cheats mode and comprises: in certain hour cycle T, transmitting terminal protocol gateway is after receiving data message, to receiving terminal protocol gateway transmitting channel probe messages, receive the provable channel status of feedback in the given time good, then send ack signal to transmitting terminal, in cycle T, transmitting terminal protocol gateway sends ACK confirmation, to improve efficiency of transmission directly to transmitting terminal main frame after receiving data message simultaneously; If do not receive feedback information in the given time, then think that present satellites channel status is not good, the transmission of the tcp data message that should slow down, avoids further degraded channel.
This method Satellite link is one hop link, does not exist congested in link, and data message must transmit in order on link, can not be out-of-sequence.Protocol gateway proposes a kind of negative retransmission mechanism under this condition in packet error control method, occurs interval, then receive protocol gateway and can send NACK immediately, the message that request retransmission is lost if received between packet packet number that protocol gateway receives.
Return link bandwidth control structure schematic diagram as shown in Figure 4.Return link bandwidth controls to comprise: in a kind of timing of reception protocol gateway design affirmation mechanism, to the ACK message sending protocol gateway transmission oneself after reception protocol gateway receives the ACK message of some, transmission gateway is removed and confirms packet, release buffer memory.Reduce retrograde satellite link ACK message rate.Reduce the impact of asymmetric bandwidth on Transmission Control Protocol, data transmission efficiency is provided.
Provide one embodiment of the present of invention below.
Present embodiments provide a kind of synchronous satellite Transmission Control Protocol connection segment optimization system, the scene composition schematic diagram of this system as shown in Figure 5, comprising: transmitting terminal, transmitting terminal protocol gateway, satellite relay, receiving terminal protocol gateway and receiving terminal.
Transmitting terminal needed with receiving terminal when satellite communicates, set up protocol gateway respectively at transmitting terminal and receiving terminal.Transmitting terminal-transmission the gateway of synchronous satellite communications system, sends gateway-reception gateway, receives between gateway-receiving terminal and adopts three-way handshake Mechanism establishing TCP to connect.Send gateway, with reception gateway, transparent forwarding mode is adopted to connection data, do not carry out data processing, to strengthen the stability of connection.This implementation column setting cycle is N, and detect cycle is t.Entering this week after date, transmitting terminal protocol gateway sends ACK detectable signal, if receive ack signal in detect cycle t, then thinks that channel circumstance is good in this cycle N.Transmitting terminal sends datagram, and transmitting terminal protocol gateway sends ack signal, makes N=N-1.If do not receive ACK answer signal in time t, then the transmission rate of making a start of slowing down enters slow turn-on mode and sends datagram, and N=N-1.Make a start after sending a data message, receiving terminal detection receives grouped data Bale No. and whether occurs interval.If continuously every, then send next data message in a manner described until N=0 in the mode of cheating ACK.If there is interval, then send NACK, retransmission of lost message.As N=0, this end cycle, whether receiving end protocol gateway sends from intending ACK message to protocol gateway of making a start, and detect transfer of data and terminate.If do not terminated, then enter next cycle and proceed transfer of data by said process.If DTD, transmitting-receiving two-end release TCP connects, end data transmitting procedure.
Present embodiments provide a kind of synchronous satellite Transmission Control Protocol connection segment optimization method, by setting up protocol gateway in satellite reception end, transmitting terminal both sides ground station, by Transmission Control Protocol connection segment, sending and receiving end, ground and protocol gateway adopt ground Transmission Control Protocol to communicate, and adopt the exclusive Transmission Control Protocol of satellite link to communicate between protocol gateway.Exclusive Transmission Control Protocol adopts the message format of class udp protocol (User Datagram Protocol, User Datagram Protocol), to improve the efficiency of transmission of communication data in band-limited satellite link.Meanwhile, exclusive Transmission Control Protocol makes Optimal improvements for satellite link long delay, high bit-error and asymmetric bandwidth characteristic, comprising: deception ACK, packet error control, return link bandwidth controls.TCP establishment of connection and release stage protocol gateway are not changed packet, take the mode of transparent forwarding to strengthen connective stability; For saving resource on star.Satellite relay whole process adopts the mode of transparent forwarding.Therefore, communication link is divided into terrestrial links and satellite link two parts by setting up protocol gateway at transmitting-receiving two-end by Transmission Control Protocol connection segment optimization method provided by the invention, and for satellite link characteristic, Transmission Control Protocol is is significantly improved and optimizated, in data transmission procedure, consider satellite channel state simultaneously, reduce the error rate of the data that user receives, comprehensive lifting satellite communication system communication quality, elevator system performance.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1., based on a synchronous satellite tcp protocol optimization method for splitting TCP mechanism, it is characterized in that, described method specifically comprises:
Transmitting terminal-transmission the gateway of S1, synchronous satellite communications system, sends gateway-reception gateway, receives between gateway-receiving terminal and adopts three-way handshake mechanism to set up TCP connection respectively;
S2, set up after TCP connects, transmitting terminal-the transmissions gateway of terrestrial links part, receive gateway-receiving terminal and adopt standard TCP protocol to transmit data.The protocol gateway that satellite link part sends gateway-reception gateway processes the data message received, and carries out data transmission based on the proprietary Transmission Control Protocol of satellite link and receive;
After S3, DTD, the three part release TCP that built vertical TCP described in step S1 connects connect, and wait for that transmitting terminal sends TCP connection request next time.
2. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 1, it is characterized in that, the described TCP connection establishment stage, send gateway, with reception gateway, transparent forwarding mode is all adopted to connection data, do not carry out data processing, to strengthen the stability of connection; Satellite relay whole process adopts the mode of transparent forwarding, to save resource on star.
3. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 1, it is characterized in that, the process of described protocol gateway to data processing comprises data buffer area management, remove standard TCP protocol data packet messages head, add satellite link exclusive Transmission Control Protocol data packet messages head, improve packet efficiency of transmission over the satellite link to compress head.
4. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 3, it is characterized in that, data buffer area is set up at described protocol gateway, the tcp data bag of transmitting terminal or receiving terminal is stored in buffer area, guarantee that data retained copy before unconfirmed, in order to retransmitting.
5. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 1, it is characterized in that, the proprietary Transmission Control Protocol of described satellite link comprises: deception ACK, packet error control, return link bandwidth controls.
6. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 5, is characterized in that, described deception ACK method comprises: in some cycles T, think satellite channel parameters constant; After setting up TCP connection, protocol gateway of making a start sends probe messages to receiving end protocol gateway; If made a start, protocol gateway receives feedback acknowledgment message within the default time limit, thinks that satellite channel is good within this cycle, is suitable for sending tcp data message; In cycle T, satellite is made a start after protocol gateway receives the packet that transmitting terminal sends, and sends ACK confirmation directly to transmitting terminal; Transmitting terminal is after receiving ACK confirmation, and the packet sent before thinking has arrived receiving terminal main frame, continues to send data.
7. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 5, it is characterized in that, described deception ACK method comprises: after entering described cycle T, if made a start, protocol gateway does not receive feedback acknowledgment message within the default time limit, employing standard TCP acknowledgment mechanism, protocol gateway of making a start sends next data message after often receiving an ack signal.
8. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 5, it is characterized in that, described packet error control method comprises: satellite protocol gateway provides a kind of negative retransmission mechanism NACK, only have a satellite link between data transmit-receive end, the transmission of packet on link can not be out-of-sequence; If there is interval between the packet packet number that reception protocol gateway receives, illustrate that the loss of packet is by error code instead of congested initiation, receive protocol gateway and send NACK immediately, the message that request retransmission is lost.
9. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 5, it is characterized in that, described return link bandwidth control method comprises: in a kind of timing of reception protocol gateway design affirmation mechanism, after reception protocol gateway receives the ACK message of some, to the ACK message sent under the exclusive Transmission Control Protocol of protocol gateway transmission satellite link, transmission gateway is removed and confirms packet, release buffer memory.
10. a kind of synchronous satellite tcp protocol optimization method based on splitting TCP mechanism according to claim 1, it is characterized in that, the release that TCP described in step S3 connects adopts standard mode, sends gateway and adopts transparent forwarding mode with reception gateway to data, do not carry out any data processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778881.XA CN104618007B (en) | 2015-03-12 | 2015-03-12 | A kind of synchronous satellite Transmission Control Protocol segmentation connection optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778881.XA CN104618007B (en) | 2015-03-12 | 2015-03-12 | A kind of synchronous satellite Transmission Control Protocol segmentation connection optimization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104618007A true CN104618007A (en) | 2015-05-13 |
| CN104618007B CN104618007B (en) | 2017-12-26 |
Family
ID=53152314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410778881.XA Active CN104618007B (en) | 2015-03-12 | 2015-03-12 | A kind of synchronous satellite Transmission Control Protocol segmentation connection optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104618007B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245271A (en) * | 2015-10-27 | 2016-01-13 | 航天恒星科技有限公司 | Satellite communication network acceleration device and method |
| CN106603202A (en) * | 2016-11-24 | 2017-04-26 | 武汉船舶通信研究所 | Satellite link transmission method, system and gateway |
| CN108886705A (en) * | 2016-04-29 | 2018-11-23 | 华为技术有限公司 | A kind of signal transmission method and equipment |
| CN114827004A (en) * | 2022-04-28 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | RIP protocol optimization method suitable for on-satellite IP route exchange |
| CN116248172A (en) * | 2023-05-08 | 2023-06-09 | 银河航天(北京)网络技术有限公司 | Data transmission method, device and storage medium based on TCP/IP protocol and CCSDS protocol |
| CN117081640A (en) * | 2023-07-10 | 2023-11-17 | 武汉船舶通信研究所(中国船舶集团有限公司第七二二研究所) | Multi-protocol star warship-ground integrated gateway design method based on frame header compression |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1247384A2 (en) * | 2000-03-09 | 2002-10-09 | Raytheon Company | Effective protocol for high-rate, long-latency, asymmetric, and bit-error prone data links |
| CN101494652A (en) * | 2009-02-27 | 2009-07-29 | 中国电子科技集团公司第五十四研究所 | Method for reinforcing TCP protocol performance in satellite communication system |
| CN102571781A (en) * | 2011-12-28 | 2012-07-11 | 南京邮电大学 | Transmission control protocol connection disconnecting method suitable for integrated satellite communication system |
| US20120213210A1 (en) * | 2011-02-18 | 2012-08-23 | Verizon Patent And Licensing Inc. | QUALITY OF SERVICE (QoS) FOR SATELLITE COMMUNICATIONS NETWORK |
| CN102739569A (en) * | 2011-04-01 | 2012-10-17 | 中国科学院空间科学与应用研究中心 | Gateway used in satellite communication and method for enhancing TCP performance |
| CN102820915A (en) * | 2012-08-01 | 2012-12-12 | 北京佳讯飞鸿电气股份有限公司 | Satellite link system for improving TCP (transmission control protocol) transmission performance and use method of system |
-
2015
- 2015-03-12 CN CN201410778881.XA patent/CN104618007B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1247384A2 (en) * | 2000-03-09 | 2002-10-09 | Raytheon Company | Effective protocol for high-rate, long-latency, asymmetric, and bit-error prone data links |
| CN101494652A (en) * | 2009-02-27 | 2009-07-29 | 中国电子科技集团公司第五十四研究所 | Method for reinforcing TCP protocol performance in satellite communication system |
| US20120213210A1 (en) * | 2011-02-18 | 2012-08-23 | Verizon Patent And Licensing Inc. | QUALITY OF SERVICE (QoS) FOR SATELLITE COMMUNICATIONS NETWORK |
| CN102739569A (en) * | 2011-04-01 | 2012-10-17 | 中国科学院空间科学与应用研究中心 | Gateway used in satellite communication and method for enhancing TCP performance |
| CN102571781A (en) * | 2011-12-28 | 2012-07-11 | 南京邮电大学 | Transmission control protocol connection disconnecting method suitable for integrated satellite communication system |
| CN102820915A (en) * | 2012-08-01 | 2012-12-12 | 北京佳讯飞鸿电气股份有限公司 | Satellite link system for improving TCP (transmission control protocol) transmission performance and use method of system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245271A (en) * | 2015-10-27 | 2016-01-13 | 航天恒星科技有限公司 | Satellite communication network acceleration device and method |
| CN105245271B (en) * | 2015-10-27 | 2019-12-13 | 航天恒星科技有限公司 | Satellite communication network acceleration device and method |
| CN108886705A (en) * | 2016-04-29 | 2018-11-23 | 华为技术有限公司 | A kind of signal transmission method and equipment |
| CN106603202A (en) * | 2016-11-24 | 2017-04-26 | 武汉船舶通信研究所 | Satellite link transmission method, system and gateway |
| CN114827004A (en) * | 2022-04-28 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | RIP protocol optimization method suitable for on-satellite IP route exchange |
| CN114827004B (en) * | 2022-04-28 | 2023-12-29 | 中国电子科技集团公司第五十四研究所 | RIP protocol optimization method suitable for on-board IP route switching |
| CN116248172A (en) * | 2023-05-08 | 2023-06-09 | 银河航天(北京)网络技术有限公司 | Data transmission method, device and storage medium based on TCP/IP protocol and CCSDS protocol |
| CN116248172B (en) * | 2023-05-08 | 2023-07-07 | 银河航天(北京)网络技术有限公司 | Data transmission method, device and storage medium based on TCP/IP protocol and CCSDS protocol |
| CN117081640A (en) * | 2023-07-10 | 2023-11-17 | 武汉船舶通信研究所(中国船舶集团有限公司第七二二研究所) | Multi-protocol star warship-ground integrated gateway design method based on frame header compression |
| CN117081640B (en) * | 2023-07-10 | 2024-04-09 | 武汉船舶通信研究所(中国船舶集团有限公司第七二二研究所) | Multi-protocol star warship-ground integrated gateway design method based on frame header compression |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104618007B (en) | 2017-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104618007A (en) | Geosynchronous satellite TCP (transmission control protocol) sectional connection optimizing method | |
| WO2021042686A1 (en) | Data retransmission method and device, data reception response method and device, and storage medium | |
| CN101494652B (en) | Method for reinforcing TCP protocol performance in satellite communication system | |
| US9461784B2 (en) | RRC message transmission method in wireless communication system | |
| US20090052468A1 (en) | Apparatus and method for moving a receive window in a radio access network | |
| CN102833783B (en) | Method for optimizing terminal control protocol (TCP) under wireless environment | |
| CN112911638B (en) | Reliable communication method for optimizing wireless network load congestion by using UDP (user Datagram protocol) | |
| CN104022856A (en) | TTI (Transmission Time Interval) binding method for reducing business delaying in TD-LTE (Time Division-Long Term Evolution) system | |
| CN102790913A (en) | Audio/video transmission method on basis of 3G network | |
| CN108173851B (en) | High-efficiency multimedia transmission method for spatial information network | |
| US8943362B2 (en) | Control and monitoring for fast millimeter-wave link using out-of-band wireless channel | |
| US8964652B2 (en) | Method for enhancing of controlling radio resources, method for transmitting status report, and receiver in mobile communication system | |
| US8547881B2 (en) | Method, apparatus and system for transmitting ACK response in bidirectional data transmission | |
| CN102769520A (en) | Wireless network congestion control method based on stream control transmission protocol (SCTP) | |
| CN103825689B (en) | Delay determinacy message retransmission method with local cache | |
| KR20100069125A (en) | Communication system and method for connecting of rrc therein | |
| JP4485684B2 (en) | Method and apparatus for transmitting data packet in communication system | |
| US9510242B2 (en) | Reducing superfluous traffic in a network | |
| US10630568B2 (en) | Transmission control protocol timestamp rewriting | |
| JP2003274445A (en) | Wireless packet communication apparatus and wireless packet communication method | |
| CN116963175A (en) | Data transmission method, device and system | |
| JP3741421B2 (en) | Data communication method and communication terminal device | |
| WO2019127533A1 (en) | Feedback determination method, sending end, receiving end and system | |
| CN102624506B (en) | Deep-space file transmission method based on dual-retransmission strategy | |
| KR20120024107A (en) | System and method for transmitting data in radio link control layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |