EP4643607A1 - Dispositif et procédé d'acheminement d'un flux de données - Google Patents
Dispositif et procédé d'acheminement d'un flux de donnéesInfo
- Publication number
- EP4643607A1 EP4643607A1 EP24837379.7A EP24837379A EP4643607A1 EP 4643607 A1 EP4643607 A1 EP 4643607A1 EP 24837379 A EP24837379 A EP 24837379A EP 4643607 A1 EP4643607 A1 EP 4643607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- epc
- local
- nomadic
- data
- remote
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
Definitions
- the invention relates to wireless or wired communication networks enabling nomadic user equipment (UE) to exchange voice or data communications with each other, to connect to the Internet, or to access dematerialized data repositories (data warehouses) (data hosted “in the cloud” or “in the cloud”).
- UE nomadic user equipment
- dematerialized data repositories data warehouses
- the invention will be described mainly in the context of networks structured according to LTE specifications, and with, at the terminal level (mobile phone, tablet, PC, etc.) a dedicated application, specifically adapted.
- this type of network should only be considered as simply representative of the invention, without limitation.
- the invention can be applied equally well to wireless networks structured and organized in a comparable manner according to a specification other than LTE (UMTS, NR 5G, etc.), or also to wired networks.
- the starting point of the invention is the observation that current telecommunications systems are based, on the network side, on an increasingly centralized architecture, which increasingly distances users from the routing and switching points of exchanges. In the event of heavy traffic, this centralized arrangement can lead to network congestion, resulting in high latency and degradation of service quality.
- This type of centralized architecture also makes data more vulnerable, limits user autonomy and network availability in the event of an incident at the core network equipment level or on the links between the latter and the distribution points that are the base stations (eNodeB or eNB in LTE terminology).
- This hypercentralization of exchanges is also a source of significant energy consumption due to the number and length of the links.
- an LTE type network it comprises, in its basic architecture, a plurality of base stations (eNB), attached to a core network or EPC (Evolved Packet Core) ensuring the interconnection of the different users between them and to remote networks and services (internet, dematerialized databases, etc.).
- the EPC of an LTE operator is interfaced to the eNBs via a radio access network or RAN (Radio Access Network).
- the EPCs mainly comprise: SGW (Serving Gateways), which transport data traffic (at the user plane) and concentrate the traffic of several eNBs, and MME (Mobility Management Entity), which manage (at the control plane) signaling for mobility and provide access to HSS/HLR (Home Subscriber) databases. Server/Home Location Register) containing subscriber identifiers and rights.
- one or more PGW Packet Gateway gateways ensure exchanges with the Internet network and allocate IP addresses to the UE terminals.
- PGW Packet Gateway
- An EPC typically manages multiple cells, each with multiple radios.
- the EPC also manages handover, i.e., the transfer of a subscriber from one cell to another without interruption of service, for all subscribers in a given cell—which can number several hundred—and regardless of the radio propagation conditions between the subscribers and the eNB.
- the EPC network core is necessarily a powerful and complex piece of equipment.
- This EPC network core is connected to a very large number of eNBs, distributed throughout the region to be served, with distances that can be significant.
- the EPC network core is integrated into the eNB and allows the latter to interconnect UEs placed in its radio coverage without a broadband link with a remote centralized EPC.
- the "compact LTE” architecture ensures the confidentiality of exchanges and the simplicity of deployments in the field, and it is for this reason that it is notably used in the case of military applications or civil security forces, where deployment in totally autonomous cells, therefore without a remote network core, is essential.
- the complexity and power of the local EPC of the "compact LTE" architecture is much lower than that of a remote EPC of a conventional LTE architecture.
- US 2015/173111 A1 proposes an architecture combining local EPC and remote EPC, with the ability to switch or switch from one to the other depending on network conditions.
- This architecture similar to that of "compact LTE", eliminates the need for very long links to a centralized network core.
- this document proposes to virtualize the local EPC with an EPC virtualization module stored in a remote server (cloud server).
- a remote server cloud server
- D1 also raises the possibility of operating within a small cell network. But then, in principle, the network operates conventionally with the implementation of all LTE functions, therefore without any prior search for savings. Switching to the small cell's local EPC is in fact only a fallback solution implemented in the event of an excessively negative overhead perspective.
- the aim of the invention is to combine the advantages of a decentralized architecture of the LTE type or similar with those of a local architecture of the "compact LTE" type or similar, while overcoming their respective drawbacks and limitations, which have been set out above.
- the principle of the invention consists of operating differently for local services and for external services, with jointly, and in an evolving and dynamic manner: proximity management for local services, by equipment close to the user, and interfacing with remote networks ensuring interconnection with other operators, for external services which cannot be managed locally.
- the invention proposes to remedy these various drawbacks and limitations thanks to a communication architecture with decentralization of the communication networks to make it possible to distribute requests locally, from one location to another, without depriving oneself of the advantages provided by the services offered by remote networks (internet, etc.) or even the possibility of accessing data not accessible locally.
- remote network operators are freed from the volume of services distributed locally.
- the proximity management of local services ensures autonomy, high local availability, and the security of data exchanged at this level (which may not be transmitted to remote networks).
- the management of the community of users of the same set of local services is freed from the complexity of remote network EPCs, and can be operated on site by equipment equipped with all the functionalities required to manage the community.
- All communications between UEs of the same local island i.e. already known by the local EPC will be managed as a priority by the local EPC, avoiding monopolizing and overloading remote networks with exchanges which only concern local users.
- the invention proposes for this purpose a device for routing a data flow from a first nomadic UE to a second nomadic UE and/or a data repository within a communication network comprising a remote EPC.
- the communication network further comprises, within a local network, at least one local EPC connected to at least one access node and capable of being coupled to the remote EPC
- the device for routing the data flow comprises: means for coupling the local EPC to the remote EPC; enrollment means, comprising a memory storing identification data of nomadic UEs which have connected to the local network; means for determining, from the memory of the enrollment means, whether or not the second nomadic UE and/or the data repository are attached to the local EPC; and means for automatically redirecting the data flow in response to said determination.
- the means for automatically redirecting the data flow include: means for priority routing, within the local network via the local EPC, of the data flow to the second nomadic UE and/or the data repository, when it is determined that the second nomadic UE and/or the data repository are attached to the local EPC, said means priority routing operating without intervention from the remote EPC; and default routing means, to deport outside the local network, via the remote EPC, the data flow to the second nomadic UE and/or to the data repository, otherwise.
- the default routing means are means capable of routing the data flow to the second nomadic UE and/or the data repository via the remote EPC only when it is determined that the second nomadic UE and/or the data repository are not attached to the local EPC;
- the device further comprises means for transmitting to the remote EPC the identification data of the first nomadic UE;
- the device further comprises a nomadic UE registration server comprising means for storing nomadic UE authentication data
- the data flow redirection means comprise means capable of redirecting the data flow to the nomadic equipment registered in the nomadic UE registration server;
- the device further comprises means for obtaining authentication data of a nomadic UE, and means for recording said authentication data of the nomadic UE in the nomadic UE registration server;
- the device further comprises a local data server, and means for accessing the local data server for the nomadic UEs registered in the nomadic UE registration server;
- the device further comprises means for controlling access to the local data server, coupled to the nom
- the invention also relates to a method for routing a data flow using the means of the above device.
- Figure 1 generally illustrates a mobile communication architecture, comprising a local EPC and a remote EPC combined according to the teachings of the invention.
- Figure 2 explains more precisely how the local EPC operates, with the different modules and equipment, specific to the invention, which make it possible to selectively route communications either within the local network or in a shared manner between the local network and the remote network.
- a decentralized communications system is shown with a local network 100 comprising, according to a conventional architecture, a local EPC (EPC-L) 110 and an E-UTRAN (Evolved Universal Terrestrial Radio Access Network) 120.
- the E-UTRAN constitutes the radio part of the local cellular network, which ensures the coupling by radio link of the local EPC 110 with equipment users (UE) 10, 20 located near an eNB base station 122 specific to the local network 100.
- UE equipment users
- the local network 100 further comprises a module 130 here called MICS (Manager Intelligent Communication and Security), specific to the invention, for the management and interfacing between the local EPC 110 and the local E-UTRAN 120, on the one hand, and a P-WAN port 140 for access to a WAN (Wide Area Network) 200, on the other hand.
- MICS Manager Intelligent Communication and Security
- a P-LAN port 150 may also be provided for access to a LAN (Local Area Network) 150, for example a WiFi network allowing data to be exchanged with UEs located nearby such as the UEs 10, 20.
- the wide area network 200 is a network of conventional architecture comprising a remote EPC-D core network interfaced to eNBs such as 222 ( Figure 2) to exchange data with remote nomadic UEs, such as UE 30, located beyond the range of the base station 122 of the local network 100, but within the coverage area of the wide area cellular network 200.
- eNBs such as 222 ( Figure 2) to exchange data with remote nomadic UEs, such as UE 30, located beyond the range of the base station 122 of the local network 100, but within the coverage area of the wide area cellular network 200.
- the local 110 and remote 210 EPCs are conventional structures built from pre-existing modules, the functions of which were explained in the introduction, namely: HSS subscriber registry server, MME mobility management entity, S-GW serving gateway, and P-GW data exchange and IP addressing gateway.
- the HSS register 112 of the local EPC 110 is adapted to keep a list of users located within the coverage of the eNB 122 of the local network 100 and to continuously update this list. This list of local users can be continuously transmitted to the remote EPC 210. Indeed, every user has by default the subscription of his operator. Therefore, if the local network finds that the user's need cannot be managed at the local level, it transmits the request or the communication to the remote operator to which the user is subscribed.
- the MICS 130 is a module making it possible to selectively manage access i) either, as a priority, to the local EPC 110 ii) or, failing that, to the remote EPC 210, the transition between the local EPC 110 and the remote EPC 210 being done automatically and transparently for the user.
- the UE 10 wants to establish a communication with the UE 30 (or with a remote data repository) which is out of range of the local network 100, then the communication will be done via the remote EPC 210 (communication referenced COM-D in Figure 1).
- the UE 10 wants to establish a communication with a UE such as 20 (or with a local data repository, in particular integrated into the MICS) which is in the same cellular coverage area as it, then the communications will pass through the local EPC 112 (communication referenced COM-L in Figure 1), without it being necessary to involve the remote EPC 210.
- the MICS 130 comprises the following elements: a binary switch 132, here called CB, an automatic data configuration system 134, here called SCAD, operating very advantageously by functional interaction with a dedicated application, implemented in the UE of each user, a "cloud" platform of reconciled data 136, here called PCDR, and a local data security system 138, here called SSDL.
- CB binary switch 132
- SCAD automatic data configuration system
- PCDR reconciled data
- SSDL local data security system
- the role of the binary switch CB 132 is to direct communications originating from a UE located within range of the local network (for example the UE 10) either to the local EPC 110, if these communications are intended for a UE such as the UE 20 or to a local data repository, in particular a data repository integrated into the MICS such as the PCDR, located in the coverage area of the local network 100, either to the remote EPC 210 if these communications are intended for a UE such as the UE 30 or to a remote data repository located out of range of the network 100.
- the CB switch 132 also ensures the recovery of the identifiers of the nomadic clients which have connected to the local network 100, to transmit them to the SCAD system 134, by interaction with the dedicated application implemented in the UE of the user affiliated with the local network.
- the identifier of a nomadic client that has connected to the local network 100 can also be addressed to other local networks, each operating independently, but affiliated with the same organization. In this way, a user who has configured himself once in one of the affiliated local networks can subsequently be recognized without delay by all the other affiliated local networks (the user in question, however, being present in only one cell of a local network at a time).
- the SCAD 134 automatic data configuration system is a module that provides the interface between the eNB 122 and a data server integrated into the local EPC.
- the SCAD retrieves data such as identifiers, address books, etc. from clients not yet registered, and registers them in the local repositories of the EPC 112, automatically and dynamically.
- This enrollment function (in response to the question "do you want to enter the local network?") makes it possible to accept data from new users, or to update data from known users, in the local repositories, again by interaction with the dedicated application implemented in the UE of the user affiliated with the local network.
- the "cloud" platform for PCDR 136 reconciled data is an optional module which, if desired, can be used as a repository for data for user-specific content such as personal data, video content, basic internet content, etc., so that this personal data can be exchanged directly with other users connected to the local network 100 - this without it being necessary to involve the remote network 200, and therefore avoiding unnecessarily overloading it with traffic with purely local destinations.
- the role of the SSDL 138 local data security system is to prohibit access to local data in response to any external request, and to only grant this access to users previously declared and identified on the local network.
- this function can be ensured by loading onto the UEs wishing to use the local network 100 a dedicated application integrating secure user identification functionalities (by means of a code or other similar technique), so as to identify and neutralize, before any action, attempts at unauthorized intrusions into the local network.
- the communications to be established between a local user and a remote user can be, in a completely transparent manner for the users, automatically switched to the remote network, thanks to the selective coupling between the local EPC and the EPC remote - and this independently of any intervention by the remote network operator.
- the fact that the personal data and/or messages exchanged are only within the local network ensures a much better guarantee of confidentiality and security of this data than if it were sent over external networks, which may be vulnerable to hacking and the actions of malicious third parties. Indeed, as explained above, this data can only be delivered to users previously registered in the HSS 112 of the local EPC 110, that is to say to rigorously identified and listed users, access to these communications and to this data stored or exchanged locally remaining physically closed to all other users.
- the implementation of the invention with the use of a dedicated application implemented or downloaded in the user's terminal allows the user: to have in the interface the classic functionalities of: telephony (IP or not) via terrestrial and/or mobile networks, electronic messaging, web browsing, access to social networks, etc. but also to access the local network via the local EPCs and to communicate locally by telephony, electronic messaging, access to local social networks, access to the "cloud platform" for close data (PCDR 136, see above), etc. - which concretely represents around 80% of uses - while retaining the possibility of benefiting from the extended services of the networks of distant third-party operators - around 20% of uses - from the local network.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2315137A FR3157744A1 (fr) | 2023-12-22 | 2023-12-22 | Dispositif et procédé d’acheminement de flux de communications pour des équipements utilisateurs nomades, sélectivement et automatiquement via un équipement cœur distant ou bien un équipement cœur local |
| PCT/EP2024/087853 WO2025133089A1 (fr) | 2023-12-22 | 2024-12-20 | Dispositif et procédé d'acheminement d'un flux de données |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4643607A1 true EP4643607A1 (fr) | 2025-11-05 |
Family
ID=90904205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24837379.7A Pending EP4643607A1 (fr) | 2023-12-22 | 2024-12-20 | Dispositif et procédé d'acheminement d'un flux de données |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4643607A1 (fr) |
| FR (1) | FR3157744A1 (fr) |
| WO (1) | WO2025133089A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3005387B1 (fr) * | 2013-05-03 | 2016-10-21 | Cassidian Sas | Procede pour maintenir un flux de donnees en provenance d'un site cellule au sein d'un reseau de communication mobile vers un equipement coeur distant, systeme et programme d'ordinateur associes |
| US9479934B2 (en) * | 2013-12-13 | 2016-10-25 | Parallel Wireless, Inc. | Virtualization of the evolved packet core to create a local EPC |
-
2023
- 2023-12-22 FR FR2315137A patent/FR3157744A1/fr active Pending
-
2024
- 2024-12-20 EP EP24837379.7A patent/EP4643607A1/fr active Pending
- 2024-12-20 WO PCT/EP2024/087853 patent/WO2025133089A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3157744A1 (fr) | 2025-06-27 |
| WO2025133089A1 (fr) | 2025-06-26 |
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