WO2024028362A1 - Procédé mis en oeuvre par un dispositif réseau pour suivre un usage de ressources pour communiquer avec au moins un terminal, dispositif réseau, terminal, système, et programme d'ordinateur associés - Google Patents
Procédé mis en oeuvre par un dispositif réseau pour suivre un usage de ressources pour communiquer avec au moins un terminal, dispositif réseau, terminal, système, et programme d'ordinateur associés Download PDFInfo
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- WO2024028362A1 WO2024028362A1 PCT/EP2023/071352 EP2023071352W WO2024028362A1 WO 2024028362 A1 WO2024028362 A1 WO 2024028362A1 EP 2023071352 W EP2023071352 W EP 2023071352W WO 2024028362 A1 WO2024028362 A1 WO 2024028362A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18504—Aircraft used as relay or high altitude atmospheric platform
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18521—Systems of inter linked satellites, i.e. inter satellite service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
- H04B7/18543—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for adaptation of transmission parameters, e.g. power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18565—Arrangements for preventing unauthorised access or for providing user protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
Definitions
- the present invention relates to the general field of telecommunications.
- the present invention relates to a method implemented by a network device for tracking resource usage to communicate with at least one terminal, a method implemented by a terminal, a network device, a terminal, a tracking entity , a system, a computer program and an associated information medium.
- the present invention finds a particularly advantageous application, although in no way limiting, for the implementation of mobile satellite telephone networks.
- the invention is placed in particular in the context of the delegation of resources between communication systems, a mechanism in which a first system places resources (resources, radio, computer, network, etc.), such as for example a frequency spectrum, available to one or more other systems according to specific conditions which define, for example, the resources concerned, the duration or period of availability, parameters of use of these resources, and pricing conditions or billing for the use of these resources.
- resources resources, radio, computer, network, etc.
- specific conditions which define, for example, the resources concerned, the duration or period of availability, parameters of use of these resources, and pricing conditions or billing for the use of these resources.
- the present invention aims to remedy all or part of the disadvantages of the prior art, in particular those explained above.
- a method is proposed implemented by a network device to monitor the use of resources to communicate with at least one terminal, the method comprising:
- the proposed method makes it possible to trace the resources used by a communication system to communicate data to a terminal.
- the proposed process allows a network device (eg a satellite, an aircraft, a terrestrial radio access point, etc.) to dynamically inform a tracking entity of the resources used.
- a network device eg a satellite, an aircraft, a terrestrial radio access point, etc.
- the proposed method has the particular advantage of being dynamic.
- network device refers here to a communication device of an access network, for example a radio access network, making it possible to communicate data to terminals.
- said network devices are included in aircraft or satellites.
- aircraft and “satellite” refer respectively to: any device capable of rising into the air such as a drone, an airplane, a high altitude platform (or HAP for " High Altitude Platform”); and any device placed in orbit around a planet (Earth, Mars, etc.) such as artificial satellites (e.g. telecommunications satellite).
- said network devices are terrestrial and are mobile or not.
- resource refers here to any resource of communication equipment and can thus designate communication resources (e.g. a frequency channel, a time interval, a pair consisting of a frequency and a time interval, etc.), energy resources, computing resources, etc.
- resource used to communicate can designate a resource used for all the operations necessary for communication such as: transmission, reception, data processing, as well as synchronization and control.
- proofs of use within the meaning of the invention indicate the communication resources actually used by the network devices to communicate data to the terminals.
- a proof of use may indicate a number of frequency channels, a time interval, a number of time-frequency blocks, a transmission power, and/or an energy consumed to communicate data to the terminals.
- a proof of use is, according to one embodiment, a token type message signed by the issuer (i.e. the author) of the proof, user of the resource.
- tracking entity designates a device implementing resource tracking by a satellite communication system to communicate with terminals.
- the proofs of resource use are sent to: a first tracking entity included in a network device management entity, for example operated by a mobile operator; and to a second tracking entity included in a ground station, for example operated by a network access device operator.
- the network device can send said proofs of resource usage to the second tracking entity; and the terminal can send said resource usage proofs, received from at least one network device, to the first tracking entity.
- Earth station means network equipment located on Earth, making it possible to connect one or more network devices to a terrestrial communications network.
- the terminal for each sending of data to a terminal, the terminal sends, to a tracking entity, said one or more proofs of use indicating resources used during this communication .
- This embodiment makes it possible to implement precise monitoring of resources with fine granularity (i.e. with a high level of detail).
- this embodiment makes it possible to obtain proof of the completion of a communication, since the tracking entity receives proof of use from the terminal for which the communication was carried out.
- the proposed method can in particular be exploited advantageously to deploy billing solutions based on the resources used.
- billing solutions appear to be essential to meet the needs of new use cases for communication systems, such as networks of connected objects, communicating vehicles, etc.
- the terminal receives both data and proof of use indicating the resources used.
- the terminal can then transmit this information to a tracking entity of a mobile network operator as proof of delivery of a communication; and the tracking entity triggers billing for this communication based on this information.
- said network device sends, to a tracking entity and/or said at least one terminal, one or more proofs of use indicating resources used by at least one other network device to communicate said data to at least one terminal.
- This embodiment has the particular advantage of tracking the resources used by several network devices to communicate data to terminals.
- cooperation is used to refer to the fact that multiple network devices are used collaboratively to communicate with terminals.
- said proofs of use indicate the involvement of a plurality of network devices to communicate data to a terminal.
- this embodiment makes it possible to trace the resources respectively used during cooperation between network devices.
- a first network device requests a second network device in order to relay to a terminal part of the data to be transmitted to the latter.
- the usage proofs indicate the resources respectively used by each of the two network devices.
- the tracking entity is able to trace the cooperation between the network devices, and in particular to follow the resources used by the second network device to relay data to the terminal.
- said one or more proofs of use are signed by a private key associated with a certified entity.
- private key and “public key” is meant a pair of keys associated with an entity and used to implement an asymmetric encryption scheme, the private key being intended to be confidential and the public key being intended to be broadcast publicly.
- an encryption scheme is used in particular to generate session keys authenticating messages such as proofs of use and usage authorizations.
- signature refers here to a digital signature, that is to say to data added to a message, allowing the recipient of the message to verify the author of this message as well as the integrity of the latter.
- the signature of a message is, according to one embodiment, obtained by encrypting a hash (or “hash” in English) of the message.
- a hash or “hash” in English
- a “certified entity” designates an entity authorized to exploit resources and having, as such, a certificate.
- a certified entity may be a mobile operator that owns a certain frequency spectrum and authorizes network devices to use this spectrum to communicate with terminals.
- the resource usage proofs sent by the network devices may be signed with a private key of the operator of the network devices, or may be signed using an algorithm based on an identifier of the operator, for example deriving an encryption key from this identifier.
- An advantage of this embodiment is to guarantee the reliability of monitoring the use of resources. Indeed, this embodiment makes it possible to ensure the authenticity and integrity of the transmitted proofs of use relating to the resources used. Any recipient of this evidence of use is able to verify the authenticity and non-repudiation of information using the public key of the certified entity.
- an operator may have a private key-public key pair allowing it to prove that it is the owner of a frequency spectrum.
- a frequency regulatory authority e.g. ARCEP, the regulatory authority for electronic communications, posts and press distribution, or the GSMA
- a public key certificate e.g. an X certificate. 509
- This operator certificate allows it to distribute a certificate by access network or RAN (acronym for “Radio Access Network”) including its public key with the signature of a regulatory authority (i.e. trusted). Consequently, the recipients (user network devices) are thus able to authenticate the spectrum possession information signed by this operator.
- said one or more proofs of use indicate frequency resources used to communicate data to said at least one terminal. This embodiment makes it possible to reliably and precisely track the frequency resources used by one or more network devices during communication with terminals.
- this embodiment makes it possible in particular to monitor the frequency resources delegated during cooperation between network devices.
- This embodiment is particularly advantageous in that it allows, when a network device delegates (i.e. makes available) part of its resources to cooperate with at least one other satellite, to prove the delegation of resources.
- said one or more proofs of use indicate time-frequency resources used to communicate application data to said terminal and associated control data.
- application data reference is made here to data from a communication service (i.e. a function), for example data from a telephone call, data from a video stream, etc.
- control data reference is made here to data necessary for the implementation of a communication service (i.e. a function), such as signaling data, synchronization data, etc.
- This embodiment makes it possible to carry out precise monitoring of the resources used, in particular by differentiating the monitoring of the resources used to communicate application data and to communicate control data. It should be noted that the communications of these two Types of data are typically implemented using distinct resources, such that this embodiment makes it possible to count the use of these different resources.
- This embodiment is particularly advantageous because it makes it possible to monitor both the resources used for the communication of useful data and also the resources used for the implementation of this communication, e.g. signaling, synchronization, etc. For example, in the context of cooperation between network devices, a certain number of exchanges are necessary between the different network devices to implement this cooperation. This embodiment makes it possible, in this case, to count these exchanges in the monitoring of the resources used. In addition, this embodiment makes it possible to gradually initiate exchanges between network devices over time without intervention by the network device management entities, even when the network devices are operated by different operators. This embodiment thus allows network devices to receive, verify and count proof of use over time.
- said one or more proofs of use indicate a quantity of energy resources consumed to communicate said data to said least one terminal. This embodiment makes it possible to count, in monitoring the resources used, the energy resources consumed by one or more network devices to communicate data to a terminal.
- the network device sends all or part of said data to said at least one terminal via at least one other network device.
- This embodiment makes it possible to improve the performance of a satellite communication system (e.g. a satellite access network), particularly in terms of coverage, throughput and reliability.
- a satellite communication system e.g. a satellite access network
- this embodiment makes it possible to implement cooperation between network devices in order to communicate with terminals, i.e. several network devices are used to communicate data to the terminals.
- cooperation allows a network device to benefit, through cooperation, from the resources of at least one other network device to communicate with terminals.
- Such cooperation allows, for example, the network device to artificially expand its coverage area by benefiting from the coverage area of at least one other network device.
- a first network device can increase the power of the signal received by a terminal by cooperating with a second relay network device (ie repeater) closer to the terminal.
- a second relay network device ie repeater
- said sending of all or part of said data to said at least one terminal via said at least one other network device is triggered following receipt of a usage request message received from said at least one terminal.
- said message received from said at least one terminal includes information relating to a power level received by said at least one terminal.
- information relating to a power level received includes information relating to a power level received by said at least one terminal.
- No limitation is attached to the nature of the information relating to a power level received. It can in particular take the form of a request to increase the received power, a received power level, a signal-on-interference-plus-noise level (or SINR in English for “Signal-to -Interference-plus-Noise Ratio”), an indication that the received power level is below a given threshold.
- sending said data by said network device to said at least one terminal comprises:
- first portion of said data and “second portion of said data” can designate all or part of said data to be transmitted to said at least one terminal.
- first and second portions of data may be identical in whole or in part, or different.
- a plurality of point-to-point links is used to transmit data to the terminals.
- this embodiment makes it possible in particular to exploit coordinated multi-point techniques, more commonly referred to as CoMP (acronym for the English expression “Coordinated Multi-Point”).
- CoMP Coordinated Multi-Point
- this embodiment makes it possible to benefit from the respective advantages of spatial diversity or spatial multiplexing schemes, which are respectively: to increase reliability and range; and increase communications throughput. Consequently, this embodiment makes it possible to improve communication performance in terms of coverage, throughput and reliability.
- this embodiment makes it possible to implement frequency and/or time multiplexing techniques and thus makes it possible to increase the communication rate.
- the two network devices can transmit two independent data streams to the terminals by exploiting all or part of two distinct frequency bands so as to increase the transmission rate.
- said method comprises:
- This embodiment falls within the context of cooperation between network devices described above.
- at least two network devices cooperate (i.e. are used) to communicate data to the terminals.
- this embodiment allows each of the two network devices to have proof of use indicating the resources used by the two network devices.
- each of the network devices is able to trace the resources used by several network devices during cooperation and to prove this cooperation.
- the method comprises:
- authentication is meant the fact of verifying the identity of the author of a message or data and furthermore the integrity of this message or data , and in particular, at least in this embodiment, the certificate associated with the authorization of use.
- This embodiment makes it possible to control the exploitation of resources in a reliable and secure manner.
- a certified entity authorizes a device network to use certain resources to communicate with terminals. This is, for example, the owner of satellite or 4G or 5G spectrum.
- the use (or operation) authorization can indicate to a network device that it can use a certain frequency spectrum to communicate with terminals.
- authorization of use can be issued by an operator who owns this spectrum and has a public key certificate as described above. In this way, if a network device receives authorization to use this spectrum, it is able to authenticate this authorization and confirm that the owner operator is indeed the author of this information and that it delegates its use to the network device for the duration specified in the authorization.
- This type of delegation is for example carried out using protocols such as the STAR protocol as described in the RFC 8555 document published by the IETF dating from March 2019, or the Subcert protocol described in the document published by the IETF and entitled “Delegated Credentials for (D)TLS - draft-ietf-tls-subcerts-15”, June 15, 2022.
- the method comprises:
- cooperation criterion is meant here a criterion which conditions the implementation of cooperation by the first network device with the second network device.
- the resources of a network device that can be used for cooperation are also called shareable or usable resources.
- This embodiment makes it possible to improve the performance of a communication system, particularly in terms of coverage, throughput and reliability. Indeed, this embodiment makes it possible to implement cooperation between network devices in order to communicate with terminals.
- This embodiment allows a network device to implement cooperation autonomously and dynamically with other network devices, which makes it possible to respond to rapid variations in flow rates in the data to be communicated to the terminals. Furthermore, this embodiment only requires minimal and decorrelated signaling (of the so-called variations rapid flow rates) between the cooperation entity and the network devices to implement cooperation.
- the autonomy, that is to say the capacity for initiative, of the network devices with regard to the implementation of cooperation is enabled by sending them information relating to the resources that can be used to cooperate. . Indeed, during the validity period of the information received, the network devices have the information required to initiate cooperation if necessary.
- This embodiment thus makes it possible to implement a low-complexity communication system to achieve cooperation between network devices, for example between satellites.
- the autonomy of network devices in implementing cooperation can also be enabled by sending resource delegation authorizations to a network device. Following receipt of these authorizations, a network device is for example informed that another network device is authorized to cooperate and can thus initiate cooperation if necessary with this other network device. This embodiment can be described as an “opportunistic” mode of cooperation.
- a method is proposed implemented by a terminal to monitor the use of resources to communicate with at least one network device, the method comprising a reception, coming from said at least one network, data device; and [0071] reception, from said at least one network device, of one or more proofs of use indicating resources used by said at least one network device to communicate said data to the terminal.
- the terminal sends said proofs of use to a tracking entity.
- a network device for communicating with at least one terminal comprising:
- a sending module configured to send data to said at least one terminal
- a sending module configured to send, to a tracking entity and/or said at least one terminal, one or more proofs of use indicating resources used by said network device to communicate said data to said less a terminal.
- a terminal comprising: [0077] a reception module configured to receive, from at least one network device, data and one or more proofs of use indicating resources used by said at least one network device to communicate said data to the terminal.
- the terminal further comprises a sending module configured to send said proofs of use to a tracking entity.
- a tracking entity comprising:
- a reception module configured to receive, from at least one network device and/or from at least one terminal, one or more or more proofs of use indicating resources used by said at least one network device to communicate data to at least one terminal.
- a system comprising:
- the system further comprises a tracking entity according to the invention.
- a computer program comprising instructions for implementing the steps of a method according to the invention, when the computer program is executed by at least a processor or computer.
- the computer program can be made up of one or more sub-parts stored in the same memory or in separate memories.
- the program may use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable shape.
- the computer program can be executed on at least one processor or a computer on board a satellite or an aircraft or any other network device.
- the information carrier can be any entity or device capable of storing the program.
- the support may comprise a storage means, such as a non-volatile memory or ROM, for example a CD-ROM or a microelectronic circuit ROM, or even a magnetic recording means, for example a floppy disk or hard disk.
- the storage medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by a telecommunications network or by a computer network or by other means.
- the program according to the invention can in particular be downloaded onto a computer network.
- the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in executing the method in question.
- FIG. 1 Figure 1 schematically represents a communication system making it possible to illustrate cooperation implemented between network devices in a context of application of the invention
- Figure 2 represents, in flowchart form, steps of a communication method making it possible to illustrate cooperation implemented between network devices in a context of application of the invention
- Figure 3 represents, in flowchart form, steps of a communication method according to one embodiment of the invention.
- Figure 4 represents, in flowchart form, steps of a communication method according to one embodiment of the invention.
- Figure 5 schematically represents an example of software and hardware architecture of a communication system according to one embodiment of the invention
- Figure 6 schematically represents an example of functional architecture of a communication system according to one embodiment of the invention.
- the present invention relates to a method implemented by a network device for tracking resource usage to communicate with at least one terminal, a method implemented by a terminal, a network device, a terminal, a tracking entity , a system, a computer program and an associated information medium.
- the present invention applies in particular to satellite communication systems, as described below with reference to Figures 1 to 6. However, the invention also applies to all types of communication systems, in particular terrestrial or aircraft communications systems.
- Figure 1 schematically represents a communication system making it possible to illustrate cooperation implemented between network devices in a context of application of the invention.
- the present invention fits into a context where several satellites (network devices within the meaning of the invention) cooperate to communicate data to terminals.
- Figure 1 illustrates several types of cooperation between network devices.
- the satellite communication system comprises, according to one embodiment: a ground station GW; a first satellite SAT_X; a second satellite SAT_Y and at least one terminal UE.
- the communication system transmits data from a communication network NET to said at least one UE terminal, said at least one UE terminal being included in a CELL cell.
- the communication system implements inter-satellite cooperation: several SAT_X and SAT_Y satellites of the communication system are thus used to communicate data to said at least one UE terminal.
- the term “cell” is used here to designate a terrestrial geographical region covered by a beam from one of the antennas of the communication network device or by a beam from one of the antennas of a terrestrial mast, the terrestrial mast being able to for example be operated by an infrastructure management entity of a radio access network (more commonly referred to as “TowerCo”, an abbreviation of the expression “TowerCompany” in English).
- the geographical region covered includes the volume made up of the beam cone.
- the inter-satellite cooperation is of the relay type, the second satellite SAT_Y being operated as a relay between the first satellite SAT_X and said at least one terminal UE.
- This first embodiment makes it possible in particular to enlarge the coverage area of the communication system, the first satellite SAT_X benefiting “artificially” from the coverage area of the second satellite SAT_Y to communicate with UE terminals.
- this embodiment makes it possible to increase the power of the signal received by said at least one UE terminal, typically by selecting a SAT_Y relay satellite closer to the CELL cell in which the UE terminal is located, which thus allows improve the reliability and/or throughput of communications.
- the earth station GW is configured to communicate with the communication network NET.
- the earth station GW sends, to the first satellite SAT_X, information COOP_DIM relating to resources of the second satellite SAT_Y which can be used to transmit data in the CELL cell, and therefore which can be used within the framework of inter-satellite cooperation.
- the information COOP_DIM corresponds to a number of available channels of the second satellite SAT_Y.
- the earth station GW also sends, to the first satellite SAT_X, DATA data to be communicated to said at least one terminal UE.
- These DATA data here include a first set of COOP_DATA data and a second set of DATA_X data, detailed below.
- COOP_DATA data to be transmitted are generated by the network devices.
- the COOP_DATA data to be transmitted to said at least one UE terminal are transmitted or transmitted by the SAT_X satellite.
- the first satellite SAT_X thus receives, from the earth station GW, the COOP_DIM information and the DATA data. On the basis of the COOP_DIM information, the first satellite SAT_X sends, to the second satellite SAT_Y, a COOP_QUERY request for data transmission to said at least one UE terminal and the COOP_DATA data to be transmitted to said at least one UE terminal.
- the COOP_QUERY request for data transmission to audit at least one UE terminal is also called cooperation request.
- the second satellite SAT_Y receives, from the first satellite SAT_X, the cooperation request COOP_QUERY and the COOP_DATA data to be transmitted to said at least one terminal UE. Following this reception, the second satellite SAT_Y sends the COOP_DATA data to at least one terminal UE.
- Said at least one terminal UE receives, from the second satellite SAT_Y, the COOP_DATA data.
- the invention thus makes it possible, in this first embodiment, to implement inter-satellite cooperation initiated by the satellites themselves in an autonomous manner.
- the invention requires only a few exchanges between the earth station and the satellites to implement cooperation, which makes it possible in particular to deploy a satellite communication system with a limited number of earth stations.
- the invention makes it possible, thanks to the autonomy of the satellites, to implement inter-satellite cooperation in an opportunistic and dynamic manner, and makes it possible to respond to rapid variations in flow rate.
- the present invention can be used to implement mobile telephone networks based on radio access technologies of the OFDMA type (acronym for the English expression “Orthogonal Frequency Division Multiple Access”).
- NET communication network which can be a mobile telephone network (2G, 3G, 4G, 5G, 6G, etc.), a computer network of the type Internet, or any other network (proprietary, etc.) that may be considered.
- the communication interface between the NET network and the earth station GW can be wired or non-wired, and can implement any protocol known to those skilled in the art.
- the satellites of the SYS communication system can describe geostationary, medium or low earth orbits.
- the coverage areas of the different satellites can be fixed or moving over time.
- the satellites of the communication system can be operated by the same satellite operator or by different satellite operators. In the latter case, the communication system makes it possible to implement cooperation between several mobile and/or satellite operators.
- the UE terminals can be of the mobile telephone type, for example a Smartphone, or a tablet, or a computer or any other type of communicating device, in particular communicating objects (more commonly referred to as “loT” for “Internet of Things”). " in English).
- the inter-satellite cooperation implemented by the communication system is of the CoMP type (acronym for the Anglo-Saxon expression “Coordinated Multi-Point”).
- the first satellite SAT_X and second satellite SAT_Y are used to transmit DATA_X and COOP_DATA data in a coordinated manner to at least one terminal UE, using the same time-frequency resources.
- This second embodiment makes it possible to exploit the spatial domain of the communication channel to improve communication performance in terms of coverage, throughput and/or reliability.
- the satellites SAT_X and SAT_Y coordinate their transmissions so that, at said at least one terminal UE, the reception of the DATA_X data coming from the first satellite SAT_X is synchronized with the reception of the COOP_DATA data coming from the second satellite SAT_Y.
- the inter-satellite cooperation implemented by the communication system is of the carrier aggregation type (or “Carrier Aggregation” in English).
- the first SAT_X and the second satellite SAT_Y are used to simultaneously send, to at least one UE terminal, DATA_X and COOP_DATA data using different frequency resources. This third embodiment makes it possible to implement frequency multiplexing, and thus to improve the transmission rate.
- inter-satellite cooperation consists of using the second satellite SAT_Y as a relay to carry out transfer of control, described as “long hand over” (or long intercellular transfer), of said at least one terminal of the first SAT_X satellite to a third satellite.
- This fourth embodiment makes it possible to enlarge the coverage area of the communication system and to ensure continuity of service for the terminals.
- the switching of control of the terminal UE to the third satellite can be carried out as follows: during a first time interval, the earth station GW sends, to the first satellite SAT_X, data to be transmitted to said at least one terminal UE, this data being transmitted to the terminal UE via the second satellite SAT_Y; then, during a second subsequent time interval, the earth station GW sends, to the third satellite, other data to be transmitted to the terminal UE.
- the earth station GW switches the data flow destined for the terminal UE from the first satellite SAT_X to the third satellite.
- Figure 2 represents, in flowchart form, steps making it possible to illustrate cooperation implemented between network devices in a context of application of the invention.
- Figure 2 thus describes the exchanges between the elements of a communication system implementing cooperation between satellites according to the embodiments of the invention described previously with reference to Figure 1.
- the communication system comprises a SERVER server; a network entity NE; a GW ground station; a first satellite SAT_X; a second satellite SAT_Y; and at least one UE terminal.
- Figure 2 describes steps implemented by the different elements of the communication system according to one embodiment and illustrates data exchanges between these elements over time.
- the following reference signs make it possible, for each step of the process, to identify the element implementing this step: references starting with SS are used for steps implemented by the SERVER server; SN for the NE network entity; SG for the GW earth station; SX for the first satellite SAT_X; SY for the second satellite SAT_Y; SU for said at least one terminal UE.
- the SERVER server is an application server transmitting DATA data to said at least one UE terminal.
- the SERVER server can be a mobile phone server, or a web server.
- the first satellite SAT_X generates the DATA data to be transmitted to said at least one terminal UE.
- the network entity NE is operated by a mobile operator called MNO (acronym for the English expression “Mobile Network Operator”), while the earth station GW is operated by a satellite operator called SNO (acronym for the English expression “Satellite Network Operator”).
- MNO mobile operator
- SNO satellite operator
- the earth station GW receives, from the network entity NE, AUTH resource delegation authorizations (sent during a step SN10).
- AUTH resource delegation permissions specify communications resources that can be leveraged by network devices (such as satellites) to cooperate.
- AUTH authorizations are, for example, sent by one or more MNO mobile operators and specify the spectrums and spots that can be used by satellites to cooperate.
- the earth station GW sends, to the satellites SAT_X and SAT_Y, cooperation authorizations COOP_AUTH (received during steps SX20 and SY20).
- cooperation authorization COOP_AUTH authorizes the second satellite SAT_Y to cooperate with the first satellite SAT_X and vice versa.
- the earth station GW receives, from the satellites SAT_X and SAT_Y, CAP_SAT information relating to the resources of the satellites SAT_X and SAT_Y (sent during steps SX30 and SY30).
- the CAP_SAT information can designate the available frequency channels estimated by the CAP_COOP module to transmit data to said at least one UE terminal.
- the earth station GW receives, from the entity NE, information REQ_FORE relating to specifications of the communication system (sent during a step SN40).
- the REQ_FORE information is issued by a mobile operator MNO and corresponds to forecasts of needs to implement a communication service, in terms of target speed, probability of non-coverage, and the number of connections required over a period. of time.
- a CAP_COOP module of the earth station GW receives the CAP_SAT and REQ_FORE information for a group of satellites: SAT_X, and/or SAT_Y.
- Information COOP_DIM is determined by this module CAP_COOP.
- the CAP_COOP module is common to the SAT_X and SAT_Y satellites.
- the communication system may include one or more operational/functional support systems (or OSS/BSS acronym for the expression “Operational Support System / Business Support System” in English) per satellite operator SNO or mobile MNO.
- a group of satellites can include either the group of satellites seen by a ground station GW, or all the satellites of a constellation), eg a CAP_COOP module for each of the SAT_X and SAT_Y satellites.
- the earth station GW determines, using the module CAP_COOP, information COOP_DIM relating to the resources of the satellites which can be used for cooperation.
- the COOP_DIM information corresponds to the numbers of free channels of the satellites, these free channels can be used for cooperation.
- the COOP_DIM information is determined by the CAP_COOP module of the earth station GW during a step SG50 from the CAP_SAT and REQ_FORE information.
- the COOP_DIM information for the SAT satellite can be determined from a transmission rate D and an outage probability P_OUT relating to the SAT satellite service, the rate D and the probability of non-coverage P_OUT being included in the REQ_FORE information.
- the COOP_DIM information can also be determined from statistics of the communication channel between the satellite and a terminal.
- the earth station GW sends, to the satellites SAT_X and SAT_Y, the information COOP_DIM (received during steps SX60 and SY60).
- the COOP_DIM information is sent to the satellite SAT_X and indicates to it that the satellite SAT_Y has a plurality of channels that can be used to transmit data in the CELL cell. It should be noted that when the satellites SAT_X and SAT_Y belong to different constellations then the COOP_DIM information relating to the first satellite SAT_X can be transmitted to the earth station in charge of the second satellite SAT_Y and vice versa.
- the first satellite SAT_X sends, to said at least one terminal UE, data DATA_T1 (received during a step SU65).
- SAT_X receives, from said at least one terminal UE, a usage request message named BOOST (sent during a SU70 step).
- the BOOST usage request includes a parameter which may in particular designate a request to increase the power of the received signal by N dB (decibels), a power level of the received signal, or indicate that the power of the received signal is less than one threshold, etc.
- the BOOST usage request is a signal-to-interference-plus-noise ratio, more commonly referred to as SINR (acronym for the English expression “Signal-to-Interference-plus-Noise Ratio”), at the level of the terminal UE for a signal received from the first satellite SAT_X.
- this BOOST usage request is for example sent by a UE terminal (eg an aging connected object) whose reception is deteriorating.
- This BOOST usage request is signed by the terminal and thus represents a commitment by the UE terminal to “pay” the costs associated with the action implemented to process the usage request from the UE terminal.
- Receipt of the usage request message transmitted by the terminal UE for example in the form of a token signed by the terminal UE, by a tracking entity (eg satellite and/or mobile entities) via the signaling channel of the satellite SAT_X makes it possible to prove a usage request (i.e. communication) emanating from the terminal UE associated with the signal-to-interference-plus-noise ratio SINR.
- the first satellite SAT_X determines a cooperation criterion COOP_CRIT.
- the COOP_CRIT criterion conditions the initialization of cooperation by the first satellite SAT_X with the second satellite.
- the first satellite SAT_X thus determines in step SX80 whether cooperation is necessary.
- step SX80 A first example of implementation of step SX80 is described here. Following receipt of the BOOST usage request in step SX70, the first satellite SAT_X determines that cooperation is required and, based on the COOP_DIM information, sends to the second satellite SAT_Y a cooperation request COOP_QUERY. Receiving a usage request is, according to this first example, sufficient to verify the cooperation criterion COOP_DIM and implement cooperation.
- the first satellite SAT_X encounters a load peak (i.e. an increase in data rate) over a given period of time.
- the first satellite SAT_X does not have sufficient frequency resources to communicate all the data to the terminals, and determines that cooperation is necessary.
- the cooperation criterion COOP_CRIT can be determined by the first satellite SAT_X from at least one of the following pieces of information: a link report between the first satellite SAT_X and the cell CELL; the trajectories of the SAT_X and SAT_Y satellites; the geographic coordinates defining the CELL cell.
- the COOP_QUERY cooperation request is a request for data transmission to audit at least one UE terminal.
- the COOP_QUERY request includes control data, for example one or more of the following information: channels to use, cells, transmission power levels, transmission durations, and information of synchronization.
- the synchronization information allows the satellites SAT_X and SAT_Y to coordinate their transmissions such that the signals transmitted by the satellites are received in a synchronized manner by a receiver.
- the first satellite SAT_X receives, from the second satellite SAT_Y, a COOP_ACK response to the COOP_QUERY request (sent during a step SY100).
- the COOP_ACK response includes COOP_START information indicating that the satellite SAT_Y is available to cooperate, or COOP_STOP information indicating a duration of unavailability.
- the first satellite SAT_X receives DATA data from the earth station GW (sent by the server SERVER, the network entity NE and the earth station GW respectively during steps SS110 , SN110, and SG110).
- the DATA data may include COOP_DATA data and also DATA_X data.
- the DATA data are, for example, transmitted by the SERVER server included in the NET computer network.
- the first satellite SAT_X sends to the second satellite SAT_Y the COOP_DATA data to be transmitted to said at least one terminal UE (received during a step SY120).
- the first satellite SAT_X sends, to said at least one terminal UE, the data DATA_X (received during a step SU 130).
- the first satellite transmits the DATA_X data for example using a time-frequency block (CH1, Tl).
- DATA_X data may be different or the same as COOP_DATA data.
- step SX130 if step SX130 is not implemented, then the inter-satellite cooperation is of the relay type; otherwise, if step SX130 is implemented, then the inter-satellite cooperation is of the CoMP or carrier aggregation type as previously described with reference to Figure 1.
- the second satellite SAT_Y sends the data COOP_DATA to at least one terminal UE.
- the second satellite SAT_Y sends the COOP_DATA data using a time-frequency block (CH1, Tl) identical to the time-frequency block used by the first satellite SAT_X to send the DATA_X data;
- the second satellite SAT_Y sends the COOP_DATA data using a different time-frequency block (CH2, Tl).
- step SY140 the second satellite SAT_Y uses a time-frequency block (CH1, Tl) identical to the time-frequency block used by the first satellite SAT_X, then the inter-satellite cooperation is of the CoMP type as previously described with reference to Figure 1. If, during step SY140, the second satellite SAT_Y uses a time-frequency block (CH2, Tl) different from the time-frequency block used by the first satellite SAT_X, then the inter-satellite cooperation is of the carrier aggregation type as previously described with reference to Figure 1.
- Figure 3 represents, in flowchart form, steps of a communication method according to one embodiment of the invention.
- the communication system implements a method making it possible to monitor the use of resources to communicate with said at least UE terminal.
- This embodiment makes it possible in particular to achieve reliable and precise traceability of the resources used during inter-satellite cooperation to communicate data to a terminal.
- This embodiment can obviously be combined with the four embodiments previously described, in particular the embodiments described with references to Figures 1 and 2. This embodiment thus makes it possible to monitor the use of resources during cooperation between network devices, in particular relay type cooperation, CoMP, carrier aggregation, or long intercellular transfer.
- the communication system SYS comprises at least one resource usage monitoring entity.
- this tracking entity is included in the network entity NE of the SYS system. It should be noted, however, that this example is not limiting and other embodiments could be considered in which this tracking entity is included in any or each of the elements of the SYS system.
- the communication system SYS may include a plurality of tracking entities.
- the SYS system comprises: a first tracking entity included in the network entity NE operated by a mobile operator MNO; and a second tracking entity included in a ground station GW operated by a satellite operator SNO.
- the method according to this embodiment further comprises at least one of the steps described below. More precisely, the steps of Figure 3 either describe additional steps compared to the steps of Figure 2, or specify the implementation of the steps of Figure 2 according to embodiments of the invention.
- the earth station GW receives, from a certified entity NE, one or more TDD resource delegation authorizations respectively comprising a public key associated with the certified network entity NE (sent during a step SN10).
- TDD authorizations (ie right of delegation) indicate resources that can be exploited by network devices, in particular the SAT_X and SAT_Y satellites, to implement cooperation between network devices in order to communicate with terminals.
- the reference signs starting with T designate information or a message of token type (or “token” in English) comprising, according to one embodiment, a signature making it possible to authenticate the author of a block of data and verify its integrity.
- a token also makes it possible to identify this block of data which is therefore not retransmitted, if it is assumed to be known to the recipient.
- the COOP_TICKET messages described below with reference to steps SX150 and SU 160, group the different tokens in order to have at least the signatures of the network devices participating in the cooperation, the associated data (i.e. transmitted during the cooperation) not necessarily included in COOP_TICKET messages.
- the earth station GW sends the authorizations TDD_X, TDD_Y to the satellites SAT_X and SAT_Y (received during steps SX20 and SY20).
- a TDD authorization can be issued by the NE network entity operated by a mobile operator MNO that owns a certain frequency spectrum.
- a mobile operator MNO authorizes a satellite operator SNO to exploit all or part of the spectrum held by the MNO operator to communicate data to UE terminals.
- the earth station GW receives, from the certified entity NE, one or more authorizations for use of TDU resources respectively comprising a signature determined from a private key associated with the NE certified entity (sent during an SN40 step).
- TDU authorizations (i.e. right of use) indicate resources that can be used by network devices, in particular the SAT_X and SAT_Y satellites, to communicate with terminals.
- the earth station GW sends the authorizations TDU_X, TDU_Y to the satellites SAT_X and SAT_Y Y (received during steps SX60 and SY60).
- a TDU authorization can be issued by a mobile operator MNO and indicate the usable frequency spectrums.
- a mobile operator MNO can authorize, through a TDU_X authorization, the first SAT_X satellite to use a frequency channel between 3.510 GHz and 3.529 GHz to communicate with terminals.
- the signature of a message is obtained by encrypting a hash of the message with the private key.
- the recipient upon receipt of the message, the recipient simply decrypts the signature of the message with the public key of the sender, then compares the signature decrypted to a hash of the message received to ensure the authenticity and integrity of the message.
- the satellites SAT_X and SAT_Y respectively carry out an authentication step SX61 and SY61 of the TDD spectrum use authorizations from the signatures and public keys received, for example those of the TDDs.
- This embodiment makes it possible to control the exploitation of resources in a reliable and secure manner, particularly during inter-satellite cooperation.
- the TUCP and TUDP information designates proofs of use of resources used by network devices to communicate with at least one terminal. More particularly, TUCP and TUDP information respectively designate proofs of use of resources used to communicate control data and to communicate application data.
- the first satellite SAT_X sends to the second satellite SAT_Y: a cooperation request COOP_QUERY; TUCP_X information; and a TDU_X authorization (received during a SY90 step).
- the TUCP_X information indicates, for example, a number of time-frequency blocks used by the first satellite SAT_X to transmit the COOP_QUERY request; and the TDU_X authorization is used to indicate the spectrum operated.
- the first satellite SAT_X receives from the second satellite SAT_Y: a COOP_ACK response; TUCP_Y information; and a TDU_Y authorization (sent during a step SY100).
- the TUCP_Y information indicates a number of time-frequency blocks used by the second satellite SAT_Y to transmit the COOP_ACK response; and the TDU_Y authorization is used to indicate the spectrum operated.
- the first satellite SAT_X sends to the second satellite SAT_Y: data COOP_DATA; and TUDP_X information (received during a step SY120).
- the TUDP_X information indicates a number of time-frequency blocks used by the first satellite SAT_X to transmit the COOP_DATA data.
- the first satellite SAT_X sends to said at least one terminal UE: the data DATA_X; TDD_X and TDU_X permissions; and TUDP_X information (received during a step SU130).
- the TUDP_X information indicates a number of time-frequency blocks used by the first satellite SAT_X to send the COOP_DATA data and the DATA_X data; and the TDD_X, TDU_Y authorizations allow the receiver to authenticate the transmitted information as well as to identify the resources used by the first SAT_X satellite.
- the second satellite SAT_Y sends to said at least one terminal UE: the data COOP_DATA; TDD_Y and TDU_Y authorizations; and information TUCP_Y and TUDP_Y (received during a step SU 140).
- the information TUCP_Y and TUDP_Y indicate a number of time-frequency blocks used by the second satellite SAT_Y to send the COOP_ACK response and the COOP_DATA data; and the authorizations TDD_Y, TDU_Y allow the receiver to authenticate the information transmitted as well as to identify the resources used by the second satellite SAT_Y.
- the second satellite SAT_Y sends, to the first satellite SAT_X, a COOP_TICKET message comprising: the authorizations TDD_Y and TDU_Y; and TUCP_Y and TUDP_Y information.
- the information TUCP_Y and TUDP_Y indicate all or part of the resources used by the second satellite SAT_Y during cooperation.
- the first satellite SAT_X sends, to the second tracking entity included in the earth station GW, a COOP_TICKET message comprising: the authorizations TDD_X, TDD_Y, TDU_X and TDU_Y ; and information TUCP_X, TUCP_Y, TUDP_X and TUDP_Y (received and transmitted by the earth station GW during a step SG 150).
- the tracking entity included in the earth station GW is able to precisely track and count the resources used by the first SAT_X and the second satellite SAT_Y to communicate data to said at least one terminal UE.
- a step SU160 following receipt of the data DATA_X and COOP_DATA, said at least one terminal UE sends a COOP_TICKET message to the first tracking entity included in the network entity NE (received during a step SN160).
- the COOP_TICKET message includes: authorizations TDD_X, TDD_Y, TDU_X and TDU_Y; and information TUCP_X, TUCP_Y, TUDP_X and TUDP_Y, received from the satellites SAT_X and SAT_Y.
- the tracking entity included in the network entity NE is able to track the resources used by the satellites to communicate data to the terminal and prove that a communication has actually been carried out.
- Figure 4 represents, in flowchart form, steps of a communication method according to one embodiment of the invention.
- the inter-satellite cooperation is of the relay type, the second satellite SAT_Y being operated as a relay between the first satellite SAT_X and said at least one terminal UE.
- monitoring of the resources used by the SAT_X and SAT_Y satellites to communicate COP_DATA data to at least one UE terminal can be implemented in the following manner.
- the second satellite SAT_Y receives, from the first satellite SAT_X: a cooperation request COOP_QUERY; and TUCP_X information relating to the resources used by the first satellite SAT_X to send the cooperation request COOP_QUERY.
- the second satellite SAT_Y receives, from the first satellite SAT_X: COOP_DATA data to be transmitted to said at least one terminal UE; and information TUDP_X relating to the resources used by the first satellite SAT_X to send the COOP_DATA data.
- the second satellite SAT_Y sends to audit at least one terminal: the data COOP_DATA; and information TUCP_X, TUCP_Y, TUDP_X, and TUDP_Y.
- the TUCP_Y and TUDP_Y information relates to the resources used by the second satellite SAT_Y to send a COOP_ACK response to the COOP_QUERY request and to communicate the COOP_DATA data.
- a UE terminal receives the COOP_DATA data as well as information relating to the resources used by the two satellites SAT_X and SAT_Y to communicate this data.
- the terminal UE sends the information received to the tracking entity NE.
- the NE tracking entity is thus able to trace the completion of the communication and the inter-satellite cooperation implemented to communicate the data.
- the inter-satellite cooperation implemented by the communication system is of the CoMP type.
- the first satellite SAT_X and second satellite SAT_Y are used to transmit COOP_DATA data in a coordinated manner to said at least one terminal UE.
- This embodiment makes it possible to increase the power of the signal received by the UE terminals and thus improve communication performance in terms of coverage and reliability.
- the second satellite SAT_Y receives, from the first satellite SAT_X: a cooperation request COOP_QUERY; and information TUCP_X relating to the resources used by the first satellite SAT_X to send the cooperation request COOP_QUERY.
- the second satellite SAT_Y sends, to the first satellite SAT_X: a COOP_ACK response; and information TUDP_Y and TUCP_Y relating to the resources used by the second satellite SAT_Y to send the COOP_QUERY response and the COOP_DATA data.
- the second satellite SAT_Y receives, from the first satellite SAT_X: COOP_DATA data to be transmitted to said at least one terminal UE; and information TUCP_X, TUCP_Y, TUDP_X, and TUDP_Y relating to the resources used by the two satellites SAT_X and SAT_Y to communicate the COOP_DATA data to at least one terminal UE.
- the first satellite SAT_X sends to audit at least one terminal UE: COOP_DATA data; and the information TUCP_X, TUCP_Y, TUDP_X, and TUDP_Y relating to the resources used by the two satellites SAT_X and SAT_Y to communicate the COOP_DATA data to at least one terminal UE.
- the second satellite SAT_Y sends to audit at least one terminal UE: the COOP_DATA data; and the information TUCP_X, TUCP_Y, TUDP_X, and TUDP_Y relating to the resources used by the two satellites SAT_X and SAT_Y to communicate the COOP_DATA data to at least one terminal UE.
- a UE terminal receives the COOP_DATA data coming from the two satellites SAT_X and SAT_Y as well as information relating to the resources used by the two satellites SAT_X and SAT_Y to communicate this data.
- the terminal UE sends the information received to the tracking entity NE.
- the NE tracking entity is thus able to trace the completion of the communication and the inter-satellite cooperation implemented to communicate the data.
- the inter-satellite cooperation implemented by the communication system is of the carrier aggregation type.
- the first SAT_X and the second satellite SAT_Y are used to simultaneously send, to at least one terminal UE, DATA_X and COOP_DATA data using different frequency resources.
- This embodiment makes it possible to implement frequency multiplexing, and thus to improve the transmission rate.
- the second satellite SAT_Y receives, from the first satellite SAT_X: a cooperation request COOP_QUERY; and information TUCP_X relating to the resources used by the first satellite SAT_X to send the cooperation request COOP_QUERY.
- the second satellite SAT_Y sends, to the first satellite SAT_X: a COOP_ACK response; and information TUDP_Y and TUCP_Y relating to the resources used by the second satellite SAT_Y to send the COOP_QUERY response and the COOP_DATA data.
- the second satellite SAT_Y receives, from the first satellite SAT_X: COOP_DATA data to be transmitted to said at least one terminal UE; and information TUDP_X relating to the resources used by the first satellite SAT_X to communicate the COOP_DATA data to the second satellite SAT_Y.
- the first satellite SAT_X sends to audit at least one terminal
- UE data DATA_X; and TUCP_X and TUDP_X information relating to resources used by the first satellite SAT_X to communicate the DATA_X data to at least one terminal UE.
- the second satellite SAT_Y sends to audit at least one terminal UE: the data COOP_DATA; and the information TUCP_Y and TUDP_Y relating to the resources used by the second satellite SAT_Y to communicate the COOP_DATA data to said at least one terminal UE.
- a terminal UE receives, from the first satellite SAT_X, the DATA_X data as well as information relating to the resources used by the first satellite SAT_X to communicate the DATA_X data.
- the terminal UE one receives, from the second satellite SAT_Y, the COOP_DATA data as well as information relating to the resources used by the second satellite SAT_Y to communicate the COOP_DATA data.
- the terminal UE sends the information received to the tracking entity NE.
- Figure 5 schematically represents an example of software and hardware architecture of a communication system according to one embodiment of the invention.
- the earth station GW comprises at least one of the following modules: a COM_NET_GW communication module configured to communicate with the NET communication network; and a COM_GW_SAT communication module configured to communicate with at least one of the satellites SAT_X and SAT_Y.
- the satellites SAT_X and SAT_Y respectively comprise at least one of the following modules: a communication module COM_GW_SAT configured to communicate with the earth station GW; a COM_SAT_SAT communication module configured to communicate with at least one other satellite; and a COM_SAT_UE communication module configured to communicate with said at least one UE terminal.
- said UE terminal comprises at least one of the following modules: a COM_SAT_UE communication module configured to communicate with at least SAT_X and SAT_Y satellites; and a COM_UE_NET communication module configured to communicate with the network.
- one or more elements of the SYS communication system respectively have the hardware architecture of a computer.
- the ELT element comprises a PROC processor, a RAM, a MEM ROM, and a non-volatile memory.
- the MEM memory constitutes an information medium in accordance with the invention, readable by computer and on which a PROG computer program is recorded.
- the program PROG computer program comprises instructions for implementing the steps carried out by the ELT element of a method according to the invention, when the PROG computer program is executed by the PROC processor.
- the PROG computer program defines the functional modules represented below by Figure 6, which rely on or control the hardware elements of the latter.
- Figure 6 schematically represents an example of functional architecture of a communication system according to one embodiment of the invention.
- the first satellite SAT_X and the second satellite SAT_Y respectively comprise at least one of the following modules:
- an MX_RCV_DATA reception module for receiving the DATA data
- a sending module MX_SND_QUERY to send the COOP_QUERY request
- a reception module MX_RCV_ACK to receive the COOP_ACK response
- a sending module MX_SND_COOP to send the COOP_DATA data
- an MX_SND_DATA sending module for sending the DATA_X data
- a communication module MX_COM_TUDP for sending and/or receiving TDD, TDU, TUCP and TUDP information
- an authentication module MX_AUTH to authenticate the TDU information
- an MX_COM_TICKET communication module for receiving and/or sending the COOP_TICKET message.
- the second satellite SAT_Y respectively comprises at least one of the following modules:
- a reception module MY_RCV_QUERY to receive the COOP_QUERY request
- a reception module MY_RCV_COOP to receive the COOP_DATA data
- a sending module MY_SND_COOP to send the COOP_DATA data.
- a communication module MY_COM_TUDP for sending and/or receiving TDD, TDU, TUCP and TUDP information
- an authentication module MY_AUTH to authenticate the TDU information
- a sending module MY_SND_TICKET to send the COOP_TICKET message.
- a said UE terminal comprises at least one of the following modules:
- a reception module MU_RCV_DATA for receiving the DATA_X and COOP_DATA data and the TDD, TDU, TUCP, and TUDP information
- a sending module MU_SND_TICKET to send the COOP_TICKET message.
- the tracking entity NE comprises a reception module MN_RCV_TICKET to receive the COOP_TICKET message.
- module can correspond as well to a software component as to a hardware component or a set of hardware and software components, a software component itself corresponding to one or more computer or computer programs or subprograms. more generally to any element of a program capable of implementing a function or a set of functions as described for the modules concerned.
- a hardware component corresponds to any element of a hardware assembly capable of implementing a function or a set of functions for the module concerned (integrated circuit, smart card, memory card, etc. .).
- the present invention applies in particular to satellite communication systems.
- the invention also applies to all types of communication systems and networks, in particular terrestrial, satellite or aircraft communication systems.
- the invention can be applied to terrestrial or aerial cellular mobile telephone networks, or even to wireless local networks.
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Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23751905.3A EP4566196A1 (fr) | 2022-08-05 | 2023-08-02 | Procédé mis en oeuvre par un dispositif réseau pour suivre un usage de ressources pour communiquer avec au moins un terminal, dispositif réseau, terminal, système, et programme d'ordinateur associés |
| US19/100,745 US20250392376A1 (en) | 2022-08-05 | 2023-08-02 | Method implemented by a network device for monitoring a resource usage to communicate with at least one terminal, and associated network device, terminal, system and computer program |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2208135 | 2022-08-05 | ||
| FR2208135A FR3138751A1 (fr) | 2022-08-05 | 2022-08-05 | Procédé mis en œuvre par un dispositif réseau pour suivre un usage de ressources pour communiquer avec au moins un terminal, dispositif réseau, terminal, système, et programme d’ordinateur associés |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024028362A1 true WO2024028362A1 (fr) | 2024-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/071352 Ceased WO2024028362A1 (fr) | 2022-08-05 | 2023-08-02 | Procédé mis en oeuvre par un dispositif réseau pour suivre un usage de ressources pour communiquer avec au moins un terminal, dispositif réseau, terminal, système, et programme d'ordinateur associés |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250392376A1 (fr) |
| EP (1) | EP4566196A1 (fr) |
| FR (1) | FR3138751A1 (fr) |
| WO (1) | WO2024028362A1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1217762A2 (fr) * | 2000-12-20 | 2002-06-26 | Hughes Electronics Corporation | Système pour la gestion des ressources et de la facturation dans un système de communications satellitaires à large bande |
| US10880832B2 (en) * | 2014-12-15 | 2020-12-29 | Panasonic Intellectual Property Management Co., Ltd. | Wireless base station, wireless communication system, and base station allocation method |
| US11228880B2 (en) * | 2017-07-01 | 2022-01-18 | Intel Corporation | Methods and devices for vehicular radio communications |
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2022
- 2022-08-05 FR FR2208135A patent/FR3138751A1/fr not_active Withdrawn
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2023
- 2023-08-02 US US19/100,745 patent/US20250392376A1/en active Pending
- 2023-08-02 WO PCT/EP2023/071352 patent/WO2024028362A1/fr not_active Ceased
- 2023-08-02 EP EP23751905.3A patent/EP4566196A1/fr active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1217762A2 (fr) * | 2000-12-20 | 2002-06-26 | Hughes Electronics Corporation | Système pour la gestion des ressources et de la facturation dans un système de communications satellitaires à large bande |
| US10880832B2 (en) * | 2014-12-15 | 2020-12-29 | Panasonic Intellectual Property Management Co., Ltd. | Wireless base station, wireless communication system, and base station allocation method |
| US11228880B2 (en) * | 2017-07-01 | 2022-01-18 | Intel Corporation | Methods and devices for vehicular radio communications |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4566196A1 (fr) | 2025-06-11 |
| US20250392376A1 (en) | 2025-12-25 |
| FR3138751A1 (fr) | 2024-02-09 |
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