Search

BR-112020003569-B1 - METHOD AND ARRANGEMENT FOR PACKET-SWITCHED DATA TRANSMISSION BETWEEN MARINE TRANSMITTING AND RECEIVING DEVICES FOR A MARINE VESSEL AND LAND-BASED TRANSMITTING AND RECEIVING DEVICES THROUGH AIR INTERFACES

BR112020003569B1BR 112020003569 B1BR112020003569 B1BR 112020003569B1BR-112020003569-B1

Abstract

The present invention relates to a method and arrangement for packet-switched data transmission between marine transmitting and receiving devices (1.1, 1.n) for a maritime vessel and land-based transmitting and receiving devices (2.1, 2.m) via air interfaces, which feature: - availability of marine transmitting and receiving devices (1.1, 1.n) for a maritime vessel; - availability of land-based transmitting and receiving devices (2.1, 2.m); - packet-switched data transmission, in which - an initial number of paired data communication links is used for packet-switched data transmission and - a first load distribution is used by the transmitter for data packets to be transmitted; - determination of modified transmission conditions for the initial number of paired data communication links; and - as a reaction to the determination of the modified transmission conditions, packet-switched data transmission in a second mode of operation, in which - a second number of data communication links formed in pairs by second air interfaces is used for data transmission and - on the part of the sender for data packets to be transmitted, a second distribution of (...) is used.

Inventors

  • Christoph HEUCK

Assignees

  • THYSSENKRUPP AG
  • THYSSENKRUPP MARINE SYSTEMS GMBH

Dates

Publication Date
20260317
Application Date
20180712
Priority Date
20170828

Claims (13)

  1. 1. Method for packet-switched data transmission between marine transmitting and receiving devices (1.1, ..., 1.n) to a maritime vessel and land-based transmitting and receiving devices (2.1, ..., 2.m) via air interfaces, characterized in that it comprises: - making marine transmitting and receiving devices (1.1, ..., 1.n) available on a maritime vessel; - making land-based transmitting and receiving devices (2.1, ..., 2.m) available; - packet-switched data transmission from the marine transmitting and receiving devices (1.1, ..., 1.n) to the land-based transmitting and receiving devices (2.1, ..., 2.m) in a first mode of operation, in which: - an initial number of paired data communication links are used by the first air interfaces between the marine transmitting and receiving devices (1.1, ..., 1.n) and the land-based transmitting and receiving devices (2.1, ..., 2.m) 2.m) for packet-switched data transmission and - by the sender for the data packets to be transmitted, a first load distribution is used between the maritime transmitting and receiving devices (1.1, ..., 1.n); - determine modified transmission conditions for the first set of data communication links formed in pairs; and - as a reaction to the determination of the modified transmission conditions, packet-switched data transmission from the maritime transmitting and receiving devices (1.1, ..., 1.n) to the terrestrial transmitting and receiving devices (2.1, ..., 2.m) in a second mode of operation, in which: - a second set of data communication links formed in pairs is used by the second air interfaces between the maritime transmitting and receiving devices (1.1, ..., 1.n) and the terrestrial transmitting and receiving devices (2.1, ..., 2.m) for data transmission; and - on the part of the sender for the data packets to be transmitted, a second load distribution is used between the maritime transmitting and receiving devices (1.1, ..., 1.n); wherein the second quantity and the first quantity of data communication links formed in pairs are different from each other.
  2. 2. A method according to claim 1, characterized in that modified transmission conditions are determined, while packet-switched data transmission is performed by the first number of data communication links formed in pairs.
  3. 3. A method according to claim 1 or 2, characterized in that the modified transmission conditions are modified after the packet-based data transmission has been terminated by the first number of data communication links formed in pairs.
  4. 4. A method, according to any of the preceding claims, characterized by: coupling a load-sharing command device to the marine transmitting and receiving devices (1.1, ..., 1.n); determining the first and/or second number of data communication links formed in pairs as well as the first and/or second load distribution by means of a decision logic comprised by the load-sharing command device; and distribution of data packets to be transmitted according to the first and/or second load distribution to the first and/or second number of data communication links formed in pairs by means of a routing device comprised by the load-sharing command device.
  5. 5. Method, according to any one of claims 1 to 4, characterized by: coupling a control computer that distributes loads and a router, which is formed separately from the control computer, in the marine transmitting and receiving devices (1.1, ..., 1.n); determining the first and/or second number of data communication links formed in pairs as well as the first and/or second load distribution by means of a control computer, which provides a decision logic; and distribution of data packets to be transmitted according to the first and/or second load distribution to the first and/or second number of data communication links formed in pairs by means of a router.
  6. 6. A method, according to any of the preceding claims, characterized in that the first and/or second quantities comprise at least two paired data communication links.
  7. 7. Method according to claim 6, characterized in that, in the first and/or second mode of operation, at least two paired data communication links are used for packet-switched transmission.
  8. 8. A method, according to any of the preceding claims, characterized in that packet-switched data transmission and/or in the second mode of operation is performed as stream-based packet data transmission.
  9. 9. Method, according to any of the preceding claims, characterized in that the first and/or second load distribution is determined according to the data transmission rates available, respectively, for the maritime transmitting and receiving devices (1.1, ..., 1.n), assigned to the first/second quantity of data communication links formed in pairs.
  10. 10. Method, according to any of the preceding claims, characterized in that, in the first and/or second quantity of data communication links formed in pairs, at least two or all of the maritime transmitting and receiving devices (1.1,..., 1.n) are involved, which are designed for receiving technologies from the following groups: SHF satellite communication; VSAT; mobile telephony network; INMARSAT; portside fiber optic connection; portside DSL connection.
  11. 11. A method, according to any of the preceding claims, characterized in that, for packet-switched data transmission, at least one protocol from the following groups is used: Ethernet, Internet Protocol, UDP (User Datagram Protocol), and TCP (Transmission Control Protocol).
  12. 12. A method, according to any of the preceding claims, characterized in that the first load distribution and the second load distribution are different from each other.
  13. 13. Arrangement for packet-switched data transmission, characterized by comprising: - marine transmitting and receiving devices (1.1, ..., 1.n) for a maritime vessel and - land-based transmitting and receiving devices (2.1, ..., 2.m); wherein the marine transmitting and receiving devices (1.1, ..., 1.n) and the land-based transmitting and receiving devices are designed to perform, via air interfaces, a method for packet-switched data transmission with the following steps: - packet-switched data transmission from the marine transmitting and receiving devices (1.1, ..., 1.n) to the land-based transmitting and receiving devices (2.1, ..., 2.m) in a first mode of operation, in which: - a first number of paired data communication links are used by the first air interfaces between the marine transmitting and receiving devices (1.1, ..., 1.n) and the land-based transmitting and receiving devices. (2.1, ..., 2.m) for packet-switched data transmission and - by the sender for the data packets to be transmitted, a first load distribution is used between the maritime transmitting and receiving devices (1.1, ..., 1.n); - determine modified transmission conditions for the first number of data communication links formed in pairs; and - as a reaction to the determination of the modified transmission conditions, packet-switched data transmission from the maritime transmitting and receiving devices (1.1, ..., 1.n) to the terrestrial transmitting and receiving devices (2.1, ..., 2.m) in a second mode of operation, in which: - a second number of data communication links formed in pairs is used by the second air interfaces between the maritime transmitting and receiving devices (1.1, ..., 1.n) and the terrestrial transmitting and receiving devices (2.1, ..., 2.m) for data transmission; and - on the part of the sender for the data packets to be transmitted, a second load distribution is used between the maritime transmitting and receiving devices (1.1, ..., 1.n); wherein the second quantity and the first quantity of data communication links formed in pairs are different from each other.

Description

[0001] The invention relates to a method, as well as an arrangement, for packet-switched data transmission between marine transmitting and receiving devices to a maritime vessel and land-based transmitting and receiving devices via air interfaces. [0002] Packet-switched data transmission is used in different systems for data transmission between transmitters and receivers, which includes, for example, satellite-supported data communication or the use of mobile phone networks. Transmitters and/or receivers can be defined as transmitting and receiving devices, which are also characterized as transceivers. Associated with packet-switched data transmission between maritime transmitting and receiving devices for a maritime vessel and land-based transmitting and receiving devices via air interfaces is the distribution and transmission, with the aid of routers, of maritime data packets to be transmitted in a predetermined sequence or priority to the corresponding maritime transmitting and receiving devices. For this, static metrics can be used, which determine a fixed static configuration of the load distribution for the distribution channels used for packet-switched data transmission. [0003] Patent document WO 2017111778 A1 describes a communication network 100 comprising a radio access network (RAN). This RAN comprises several base stations 120 and several mobile devices 140, which can exchange data with each other without contact. Figure 4 shows the data exchange between an originator 404 and a receiver 418. By "upload" a mobile device 140 acts as the originator 404 and a base station 120 as the receiver 418; by "download", the roles are reversed. The originator 404 has a 406, a block acknowledgement module 408, two aggregation and transmission modules 410 and 412 arranged in parallel, as well as two radio frequency (RF) circuits 414 and 416 arranged in parallel. Aggregation and transmission module 410 uses a second transmission protocol, here WiGiG. Aggregation and transmission module 412 uses a first transmission protocol, here Wi-Fi. Each aggregation and transmission module 410 and 412 respectively controls an RF circuit 414 or 416, which sends data frames at 60 GHz or 5 GHz. A load balancing module 406 decides what percentage of the data frames is transmitted according to the transmission protocol, for example 25%, and the rest is transmitted according to the second transmission protocol. Block acknowledgement module 408 commands modules 410 and 412 respectively. Load balancing module 406 has the ability to determine, for at least one transmission protocol, the quality of the transmission channel it belongs to (to calculate channel quality), for example, the load on the channel, availability, connection quality, signal strength, and statistical success rates in data transmission. To do this, load balancing module 406 obtains messages from recipient 418. If, for example, the transmission channel is simple for the second transmission protocol, WiGiG, it initiates load balancing module 406, in which larger quantities of data frames are transmitted through the transmission channel for the first transmission protocol, WiFi. [0004] In US patent document 2017078890 A1, a network 100 is further described, in which data is transmitted wirelessly using a mobile telephony (cellular communications) network standard. Network 100 has a user terminal (user equipment, UE 110), a radio network (E-UTRAN Node B, eNB 120 (E-UTRAN = evolved universal terrestrial radio access network)) and two gateways: a serving gateway (S-GW) 130 and a packet data network (PDN) gateway (PDN GW, or P-GW) 140. Terminal 110 exchanges data with radio network 120 via an air interface Uu, which can also be referred to as a cellular link, WWAN link, LTE link, or 3GPP link and, according to the 3GPP standard, is suitable for LTE wireless networks. A cross-layer bearer splitting system 200 can be used from terminal 110 for uplink bearer splitting and cross-RAT retransmission or from radio network 120 for downlink bearer splitting and cross-RAT retransmission; RAT stands for radio access technology. A link aggregation transmitter 210 conducts a splitting and cross-RAT retransmission, and decides, in this case, whether a data packet (more precisely: a protocol data unit, PDU 218) should be routed to a WWAN stack 212 or via a WLAN adaptation layer 216 to a WLAN stack 214. Figures 5a to 5c show a flowchart for a data transmission. [0005] The object of the invention is to offer a method, as well as an arrangement, for packet-switched data transmission between marine transmitting and receiving devices for a maritime vessel and land-based transmitting and receiving devices via air interfaces, with which it is possible for maritime vessels in operation to achieve enhanced packet-switched data communication. [0006] For the solution, a method and arrangement are developed for packet-switched data transmission between maritime transmitting and receiving devices f