Telecommunication network architecture

Patent metadata

Field	Value
Publication number	US-2016105232-A1
Application number	US-201514880855-A
Country	US
Kind code	A1
Filing date	Oct 12, 2015
Priority date	Oct 14, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

A device and method for the exchange of digital information between one or more content providers and one or more users, in which microcaches and nanocaches are used to store the contents of the information to be broadcast to users at their request and to provide real time services.

First claim

1 . A telecommunication system for the transmission of digital information between at least one content provider (F 1 ), at least one set of users U i , comprising at least the following elements:
a network (R 1 ) of geostationary satellites comprising at least one geostationary satellite (G 1 ), at least one access station (SAGO connected to one or more content providers (F 1 ), and at least one geostationary satellite subscriber station (SG 1 or SG 2 ), a network (R 2 ) of non-geostationary vehicles comprising at least one network access station (SAN 1 ), at least one non-geostationary vehicle user station (SN 1 ), at least one vehicle (NG 1 ) in low earth orbit comprising means for the exchange of low-latency data between (SAN 1 ) and (SN 1 ), a local loop (B 1 ) comprising a plurality of users U i , a nanocache (N 1 ) connected to the subscriber station (SG 2 ) of the GEO network R 1 and adapted to store content from the content providers (F i , with i at least equal to 1) as a function of the profile of the users, the nanocache (N 1 ) being also connected to the local loop (B 1 ) and to the subscriber station (SN 1 ) of the NGSO network (R 2 ), a microcache (M 1 ) for the storage of content from the content provider or providers (F 1 ) received via one of the subscriber station (SG 1 ) of the geostationary satellite (G 1 ), M 1 being also connected to the NGSO network (R 2 ) via access stations (SAN 1 ), the microcache (M 1 ) having greater storage capacity than the nanocache (N 1 ), (M 1 ) storing a priori all the content from the geostationary satellite (GO, at least one CDN (CDN 1 ) comprising a routing algorithm adapted to determine a microcache to be used to find the content requested by a user that is not stored in a nanocache near the user.

2 . The system according to claim 1 , comprising a mobility manager of users subscribed to the local networks.

3 . The system according to claim 1 , wherein the local loop is a terrestrial access network.

4 . The system according to claim 1 , wherein a network of vehicles in low earth orbit is a network of non-geostationary satellites.

5 . The system according to claim 1 , wherein a network of vehicles in low earth orbit comprises a stratosphere balloon or a drone or a combination of non-geostationary satellites, stratosphere balloons and drones.

6 . The system according to claim 1 , wherein a subscriber station has only one antenna and only one modem, said antenna and said modem enabling simultaneous or successive access to a GEO satellite and/or to an NGSO vehicle, thereby implementing the (SG 2 ) or (SN 1 ) function.

7 . The system according to claim 3 , wherein a subscriber station has only one antenna and only one modem, said antenna and said modem enabling simultaneous or successive access to a GEO satellite and/or to an NGSO vehicle, thereby implementing the (SG 2 ) or (SN 1 ) function.

8 . The system according to claim 5 , wherein a subscriber station has only one antenna and only one modem, said antenna and said modem enabling simultaneous or successive access to a GEO satellite and/or to an NGSO vehicle, thereby implementing the (SG 2 ) or (SN 1 ) function.

9 . The system according to claim 1 , wherein the GEO and NGSO networks operate in the same frequency bands in accordance with mutual protection principles.

10 . The system according to claim 4 , wherein the GEO and NGSO networks operate in the same frequency bands in accordance with mutual protection principles.

11 . The system according to claim 6 , wherein the GEO and NGSO networks operate in the same frequency bands in accordance with mutual protection principles.

12 . The system according to claim 1 , wherein a user is connected to the networks via a WiFi local loop B 1 comprising a central mast equipped with a plurality of NGSO subscriber terminals and GEO subscriber terminals and solar panels.

13 . The method for the exchange of digital information between one or more content providers and one or more users, and between a plurality of users, said digital information being transported across multiple telecommunication networks, comprising at least the following steps:
a content provider (F 1 ) delivers its content into at least one nanocache (N 1 ) situated near the users and the nanocache stores some or all of the content received in accordance with predefined rules via a GEO satellite network (R 1 ), at the same time, the content provider delivers the content into at least one microcache (M i ) maintained by a GEO satellite network (R 1 ), the microcache storing all of the content transmitted by the content provider, the users (U i ) consult the content stored in the nanocache (N 1 ), if the content requested by a user is present in the nanocache (N 1 ), then the nanocache delivers that content to the user (U i ), if the requested content is not present in the nanocache (N 1 ), then the content is looked for in another microcache, a request is sent via the local network to which the user requesting the content is connected, then via the network (R 2 ) of vehicles in low Earth orbit to which the local network of the user is attached, the request transits across the loop B 1 , via the nanocache N 1 , via the subscriber station SN 1 of the network R 2 , via the vehicles NG 1 and the access stations SAN 1 , if the requested services are real time services, then the transaction is effected directly via the network R 2 from the loop B 1 .

14 . The method according to claim 13 , wherein the request to search for the content in a microcache is transmitted across a terrestrial network T 1 .

15 . The method according to claim 13 , wherein it broadcasts Internet content.

Assignees

• Thales Sa

Inventors

• Michel Cyril
• Chuberre Nicolas

Classifications

• H04B7/1851 Primary

  Systems using a satellite or space-based relay (H04B7/18508, H04B7/18521 take precedence; providing specific services H04B7/18523 - H04B7/18576) · CPC title

• H04B7/18526

  Arrangements for data linking, networking or transporting, or for controlling an end to end session (data switching networks H04L12/00) · CPC title

• H04L67/568

  Storing data temporarily at an intermediate stage, e.g. caching · CPC title

• Y04S40/18

  Network protocols supporting networked applications, e.g. including control of end-device applications over a network · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title