WO2010024810A1 - Réseaux hybrides - Google Patents

Réseaux hybrides Download PDF

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Publication number
WO2010024810A1
WO2010024810A1 PCT/US2008/074562 US2008074562W WO2010024810A1 WO 2010024810 A1 WO2010024810 A1 WO 2010024810A1 US 2008074562 W US2008074562 W US 2008074562W WO 2010024810 A1 WO2010024810 A1 WO 2010024810A1
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WO
WIPO (PCT)
Prior art keywords
network
hybrid
cellular
packet
packets
Prior art date
Application number
PCT/US2008/074562
Other languages
English (en)
Inventor
Rajiv Salimath
Rony Gabriel
Original Assignee
Amperion Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amperion Inc. filed Critical Amperion Inc.
Priority to PCT/US2008/074562 priority Critical patent/WO2010024810A1/fr
Publication of WO2010024810A1 publication Critical patent/WO2010024810A1/fr

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Classifications

    • 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
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the embodiments herein generally relate to telecommunication networks, and, more particularly, to wireless and cellular data networks.
  • Wi-Fi devices are becoming ubiquitous. More and more handheld devices like phones, media players and portable gaming consoles have a de-facto Wi-Fi interface. To cater to this population, hotspots and Wi-Fi networks are coming up. Availability of Wi- Fi networks will allow users to talk using VoIP, play on line games, download music and watch video over the Internet. However, the spread of Wi-Fi networks also brings with it the disadvantages of interference and congestion. [003]Similarly, cellular networks are becoming extensive in their availability and accessibility. Cellular devices are also becoming more capable of accessing the internet and performing various high bandwidth tasks like watching streaming video, downloading files etc. The widespread use of cellular phones in most areas has allowed cellular telephone networks to expand quickly into broadband Internet service networks.
  • an embodiment herein provides a hybrid network system, comprising of multiple cellular base stations, multiple dual technology hybrid intelligent picocells, and a hybrid picocell network controller at each backhaul points of cellular network and Wi-Fi network connecting both cellular and Wi-Fi networks; where each hybrid picocell comprises of a cellular Subscriber Station (SS) module to link with at least one of the cellular base stations, Wi-Fi Access Point interface, Wi-Fi interfaces and a cellular pico Base Station (BS) interface to provide access for cellular customers.
  • SS cellular Subscriber Station
  • BS Pico Base Station
  • an embodiment herein also provides a method of providing a hybrid network comprising of multiple cellular base stations, multiple dual technology hybrid intelligent picocells, and a hybrid picocell controller at each backhaul point connecting both cellular and Wi-Fi networks, the method having the hybrid picocells as last-mile access connections to end-users; the controller classifying each packet destined to end-user into service classes; the controller analyzing congestion in Wi-Fi and cellular networks; the controller routing the packets on either one of cellular network or Wi-Fi network based on requirements of service classes and congestion on the networks; and end-users accessing either of the Wi-Fi network or the cellular network using the hybrid picocells.
  • an embodiment herein also provides a method of providing a hybrid network comprising of multiple cellular base stations, multiple dual technology hybrid intelligent picocells, where each hybrid picocell comprises of a cellular SS module to link with at least one of the cellular base stations, Wi-Fi interfaces, Wi-Fi Access Point interface and a cellular BS, and a hybrid picocell network controller at each backhaul point connecting both cellular and Wi-Fi networks, the method having end-users accessing either of Wi-Fi network or cellular network using the hybrid picocells, the hybrid picocells classifying each packet destined for the internet into service classes; the hybrid picocells analyzing congestion on the Wi-Fi and cellular networks; the hybrid picocells routing the packet on either the cellular network or Wi-Fi network based on requirements of service classes and congestion on the networks; and the controller integrating the packets and transmitting the packets onto the Internet.
  • FIG. 1 illustrates a schematic diagram of a hybrid network according to an embodiment herein
  • FIG. 2 illustrates a schematic diagram of a hybrid picocell network controller according to an embodiment herein
  • FIG. 3 illustrates a schematic diagram of a hybrid intelligent picocell according to an embodiment herein
  • FIG. 4 is a flow diagram illustrating a preferred method according to an embodiment herein.
  • FIG. 5 is a flow diagram illustrating a preferred method according to an embodiment herein.
  • the embodiments herein provide a hybrid network that consists of cellular base stations (BS), and dual technology hybrid intelligent picocells that have Wi-Fi interfaces, Wi-Fi access point interface, cellular SS interface and a cellular SS interface to link with cellular BS and cellular BS interface to link with users using cellular devices, where the cellular network used by the cellular devices can be a network using any packet data cellular technology like Long Term Evolution (LTE), Code Division Multiple Access 2000 (CDMA2000), Ultra Mile Broadband (UMB), Enhanced Data Rates for GSM (Global System for Mobile) Evolution (EDGE), Evolution - Data Optimized/Only
  • LTE Long Term Evolution
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mile Broadband
  • EDGE Enhanced Data Rates for GSM
  • EDGE Global System for Mobile
  • FIGS. 1 through 5 where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.
  • EVDO Enhanced Mobile Data Network
  • FIG. 1 A Hybrid network that consists of cellular base stations (103), and dual technology hybrid intelligent picocells (102), and a hybrid picocell network controller (101) is shown in FIG. 1. Users with Wi-Fi devices or cellular devices can connect to one of the hybrid intelligent picocells (102).
  • each backhaul point there'll be a hybrid picocell network controller (101).
  • the controller (101) connects to both the cellular and Wi-Fi networks.
  • Each packet destined for a user shall be classified by the controller (101) into service classes. Packets are classified into different service classes based on different rules that can be specified. Example of rules could be type of packets (data, VoIP, Video, etc), or type of user (e.g. users who have selected a plan with higher bit rates, users who have selected a plan with lower bit rates, business users etc), or packet address (example.com, example.net, etc), or any other operator defined rule that can differentiate one packet from another.
  • Each service class is associated with a minimum performance requirement.
  • Performance requirements could be based on various QoS parameters like bandwidth, jitter, delay, etc.
  • the switching engine forwards each packet on a link or a priority queue within a link that can meet the performance requirement associated with the service class.
  • Packets that belong to a service class having a higher performance requirement e.g. packets belonging to users who have selected a plan with higher bit rates, packets that require high QoS like VoIP packets, IP- TV packets etc
  • Packets that belong to a service class having a lower performance requirement e.g.
  • the networks may be configured by the user according to the performance offered by the network.
  • the user may designate the cellular network as the high performance network and the Wi-Fi network as the low performance network, or the Wi-Fi network may be designated as the high performance network and the cellular network as the low performance network. All packets placed on the Wi-Fi network will reach the hybrid intelligent picocell (102) through a Wi-Fi interface. Packets placed on the cellular network travel through the cellular network before reaching the hybrid intelligent picocell (102).
  • the hybrid intelligent picocell (102) takes packets received from the Wi-Fi network and the cellular base station (103) and transmits the packets to a user device on a Wi-Fi interface or a cellular interface. If user is accessing the network using Wi-Fi, packets are sent to user device by the hybrid intelligent picocell
  • each hybrid intelligent picocell (102) decides whether to send incoming packets from customer devices to the cellular Base station (103) or to the Wi-Fi network by classifying incoming packets into service classes. Packets are classified into different service classes based on different rules that can be specified. Example of rules could be type of packets (data, VoIP, Video, etc), or type of user (e.g.
  • Each service class is associated with a minimum performance requirement. Performance requirements could be based on various QoS parameters like bandwidth, jitter, delay, etc.
  • packets belonging to users who have selected a plan with higher bit rates, packets that require high QoS like VoIP packets, IP-TV packets etc) will be routed through the high performance network.
  • Packets that belong to a service class with a lower performance requirement e.g. packets belonging to users who belong to a plan with lower bit rates, packets that have only best effort QoS like packets belonging to a browsing session, packets belonging to an Instant Messaging (IM) session etc
  • IM Instant Messaging
  • the networks may be configured by the user indicating the performance offered by the network.
  • the user may designate the cellular network as the high performance network and the Wi-Fi network as the low performance network, or the Wi-Fi network may be designated as the high performance network and the cellular network as the low performance network.
  • All packets placed on the Wi-Fi network will reach the hybrid picocell network controller (101) through a Wi-Fi interface. Packets placed on the cellular network travel through the cellular network before reaching the hybrid picocell network controller (101). For example, a VoIP session from a handheld/phone will be routed by the hybrid intelligent picocell (102) through the high performance network, whereas a browsing or Instant Messaging session will be routed by the hybrid intelligent picocell (102) through the network offering lower performance.
  • the controller (101)/ hybrid intelligent picocells (102) will automatically use the available link. Effectively, this means that either network is also a hot standby for the other network in an event of failure.
  • the controller (101)/ hybrid intelligent picocells (102) monitor the load on each network in real time and can take packet routing decisions so as to de-congest a congested network. By using the least loaded network, the network is allowing more traffic onto the network. If there are far too many packets that belong to a service class with a lower performance requirement, and the high performance network is under utilized, some packets might be routed on the high performance network so as to continue servicing the user. And, if there are far too many packets that belong to a service class with a higher performance requirement and the network offering lower performance is not loaded, new traffic might be routed through the network offering lower performance. [002I]At each backhaul point, there is a hybrid picocell network controller (101).
  • the controller (101) connects to both the cellular and Wi-Fi networks.
  • the schematic of the controller is as shown in FIG. 2.
  • the hybrid picocell network controller comprises of a hybrid switching engine (201), Wi-Fi mesh interfaces for connecting to hybrid intelligent picocells (102) in the Wi-Fi network (202) and interfaces for connecting to the cellular base station (103) and to the Internet (204).
  • the interfaces may be an Ethernet interface, a fiber interface or any other suitable interface.
  • the Wi-Fi mesh interfaces receive packets from a Wi-Fi network and forwards received packets to the switching engine (201).
  • the cellular network interface receives packets from the cellular base station (103) and forwards received packets to the switching engine (201).
  • the switching engine (201) takes packets received from the Wi-Fi network and the cellular base station (103) and forwards the packets onto the Internet through an interface (204). [0022]In the reverse path, the switching engine (201) receives packets from the Internet through an interface (204). The engine (201) analyzes received packets. Packets that belong to a service class with a higher performance requirement will be placed on the high performance network. Packets that belong to a service class with a lower performance requirement will be placed on the network offering lower performance and are routed through the respective network interface. Packets placed on the Wi-Fi network will be routed through an interface (202) through the hybrid intelligent picocells (102).
  • Packets placed on the cellular network are routed to the cellular base station (103) through a network interface (203).
  • the controller (101) will automatically use the available link. Effectively, this means that either network is also a hot standby for the other network in an event of failure.
  • the controller (101) monitors the load on each network in real time and can take packet routing decisions so as to de-congest a congested network. By using the least loaded network, the network is allowing more traffic onto the network. If there are far too many packets belong to a service class with a lower performance requirement, and the high performance network is under utilized, some packets might be routed on the high performance network so as to continue servicing the user. And, if there are far too many packets belong to a service class with a higher performance requirement and the network offering lower performance is not loaded, some traffic might be routed through the network offering lower performance, albeit at the cost of degradation in performance.
  • Hybrid intelligent picocells (102) have a hybrid switching engine (304), Wi-Fi mesh interfaces for meshing with other hybrid intelligent picocells (102), and also a Wi- Fi Access Point for serving customers with Wi-Fi devices (302).
  • the hybrid intelligent picocell (102) supports a cellular subscriber station (SS) (301) interface to connect with a cellular base station (BS) (103) and a cellular pico base station (BS) (303) interface for serving customers with cellular devices.
  • the Wi-Fi mesh interfaces (305) are not restricted to Wi-Fi but are obvious to any person skilled in the art that the mesh interfaces can be extended to any wireless distribution method.
  • the architecture of a hybrid intelligent picocell (102) is as shown in FIG. 3.
  • the Wi-Fi Access Point (AP) (302) receives packets from user device and forwards received packets to the switching engine (304).
  • the cellular pico base station (303) interface receives packets from user device and forwards received packets to the switching engine (304).
  • the switching engine decides whether to send incoming packets from customer devices to the cellular base station (103) or to the Wi-Fi network based on the performance requirements. Packets that belong to a service class with a higher performance requirement will be routed onto the high performance network. Packets that belong to a service class with a lower performance requirement will be placed on the network offering lower performance.
  • Packets placed on the Wi-Fi network are routed through other hybrid intelligent picocells (102). Packets placed on the cellular network are routed through the cellular subscriber station (301). [0026]In the reverse path, the Wi-Fi mesh interfaces (305) receive packets from a Wi-Fi network and forwards received packets to the switching engine (304). Packets received by the hybrid intelligent picocell (103) may get routed through the Wi-Fi network to another hybrid intelligent picocell (103), as the user for whom the packet is destined may be located in the coverage area of the other hybrid intelligent picocell (103). The cellular SS (301) receives packets from the cellular base station (103) and forwards received packets to the switching engine (304).
  • the switching engine (304) takes the packets received from the Wi-Fi network and the cellular base station (103) and forwards the packets to the user. If the user is using a Wi-Fi capable device, then the switching engine (304) uses the Wi-Fi Access Point (302) interface to transmit packets to the user. If the user is using a cellular device, then the switching engine (304) uses the cellular pico BS
  • FIG. 4 shows a flow diagram of the process of a user sending packets onto the Internet.
  • a user transmits (401), (402) packets to a hybrid intelligent picocell (102) using Wi-Fi or cellular devices.
  • the hybrid intelligent picocell (102) analyzes (403) received packets and classifies the packets according to service class. Packets that belong to a service class with a higher performance requirement will be routed through the high performance network. Packets that belong to a service class with a lower performance requirement will be placed on routed through the network offering lower performance. Packets placed on the Wi-Fi network will be routed through hybrid intelligent picocells (102). Packets placed on the cellular network will be routed through the cellular base station (103).
  • the hybrid intelligent picocell (102) analyzes (406) the load on the network offering lower performance and if the network is congested, the hybrid intelligent picocell (102) analyzes (408) the load on the high performance network before making a decision on which network to use to transmit the packets. If the network with lower performance is not congested, then the packets are sent (410) to the hybrid picocell network controller (101) using the network with lower performance. If the network with lower performance is congested and the high performance network is comparatively less congested, then the packets are sent (409) to the hybrid picocell network controller (101) using the high performance network. If both the networks are congested, the packets are sent (410) to the hybrid picocell network controller (101) using the network with lower performance.
  • the hybrid intelligent picocell (102) analyzes (405) the load on the high performance network and if the network is congested, the hybrid intelligent picocell (102) analyzes (407) the load on the network offering lower performance, before making a decision on which network to use to transmit the packets. If the high performance network is not congested, the packets are transmitted (409) to the hybrid picocell network controller (101) using the high performance network. If the high performance network is congested and the network offering lower performance is comparatively less congested, then the packets are send (410) to the hybrid picocell network controller (101) using the network with lower performance.
  • the packets are send (409) to the hybrid picocell network controller (101) using the high performance network.
  • the hybrid picocell network controller (101) on receiving packets from the Wi-Fi network and the cellular BS (103) takes the received packets and transmits the received packets onto the Internet (411).
  • the various actions in method 400 may be performed in the order presented, in a different order or simultaneously. Further, in some embodiments, some actions listed in FIG. 4 may be omitted.
  • FIG. 5 shows a flow diagram of a user receiving packets from the Internet.
  • the hybrid picocell network controller (101) receives packets from the Internet and analyzes (501) the received packets on the basis of service class. Packets that belong to a service class with a higher performance requirement will be routed through the high performance network. Packets that belong to a service class with a lower performance requirement will be routed through the network offering lower performance.
  • the controller (101) analyzes (504) the load on the network offering lower performance and if the network is congested, controller analyzes (506) the congestion on the high performance network, before making a decision on which network to use to transmit the packets. If the network offering lower performance is not congested then the packets are transmitted (508) to a hybrid intelligent picocell (102) using the network offering lower performance. If the network with lower performance is congested and the high performance network is comparatively less congested, then the packets are transmitted (507) to the hybrid intelligent picocell (102) using the high performance network.
  • the packets are transmitted (508) to the hybrid intelligent picocell (102) using the network offering lower performance.
  • the controller (101) analyzes (503) the load on the high performance network and if the network is congested, controller (101) analyzes (505) the load on the network offering lower performance, before making a decision on which network to use to transmit the packets. If the high performance network is not congested then the packets are transmitted (507) to the hybrid intelligent picocell (102) using the high performance network.
  • the packets are transmitted (508) to the hybrid intelligent picocell (102) using the network offering lower performance.
  • the packets are transmitted (507) to the hybrid intelligent picocell (101) using the high performance network.
  • the hybrid intelligent picocell (102) on receiving packets from the Wi-Fi network and the cellular BS (103) takes the received packets and transmits the received packets to user (509). If the user is using a Wi-Fi capable device, then the hybrid intelligent picocell (102) transmits packets to the user using the Wi-Fi AP (302). If the user is using a cellular device, then the hybrid intelligent picocell (102) transmits packets to the user using the cellular pico BS (303).
  • the various actions in method 500 may be performed in the order presented, in a different order or simultaneously. Further, in some embodiments, some actions listed in FIG. 5 may be omitted.
  • Cellular network can be a network using any packet data cellular technology like Long Term Evolution (LTE), Code Division Multiple Access 2000 (CDMA2000), Ultra Mile Broadband (UMB), Enhanced Data Rates for GSM (Global System for Mobile) Evolution (EDGE), Evolution - Data Optimized/Only
  • LTE Long Term Evolution
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mile Broadband
  • EDGE Enhanced Data Rates for GSM
  • GSM Global System for Mobile) Evolution
  • EVDO Enhanced Mobile Broadband
  • the embodiments herein are not restricted to the cellular technologies herein mentioned, but the cellular network may use any packet cellular technology. More users can be supported per cellular unit than that would have been possible with a pure cellular network. Another advantage is that since there are multiple networks available, each of the networks acts as a backup for the other network.
  • Hybrid intelligent picocells as disclosed above can be installed in home/office and could act as the home/office gateway serving all devices at home/office using Wi-Fi and connecting to the external world using both Wi-Fi and cellular networks.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation ci-décrits concernent un réseau hybride comprenant de multiples stations de base cellulaires, de multiples picocellules intelligentes hybrides à technologie double, chaque picocellule hybride comprenant une interface de station d'abonné cellulaire à relier aux stations de base cellulaires, de multiples interfaces Wi-Fi, de multiples interfaces de points d'accès Wi-Fi et une interface de stations de base picocellulaires à relier aux utilisateurs qui utilisent les dispositifs cellulaires, et un contrôleur de réseau picocellulaire hybride à chaque point d'amenée connectant les réseaux tant cellulaires que Wi-Fi à Internet.
PCT/US2008/074562 2008-08-28 2008-08-28 Réseaux hybrides WO2010024810A1 (fr)

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PCT/US2008/074562 WO2010024810A1 (fr) 2008-08-28 2008-08-28 Réseaux hybrides

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476564A (en) * 2009-12-22 2011-06-29 Korea Electronics Telecomm Base station providing communications services via a selected interface supporting a communications protocol
CN107079329A (zh) * 2014-10-15 2017-08-18 英特尔Ip公司 在紧密集成的WiFi/LTE中的上行链路流量控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323980B1 (en) * 1998-03-05 2001-11-27 Air Fiber, Inc. Hybrid picocell communication system
US20060251077A1 (en) * 2005-04-20 2006-11-09 Joey Chou Methods and apparatus for providing a packet classification protocol associated with a broadcast wireless access network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323980B1 (en) * 1998-03-05 2001-11-27 Air Fiber, Inc. Hybrid picocell communication system
US20060251077A1 (en) * 2005-04-20 2006-11-09 Joey Chou Methods and apparatus for providing a packet classification protocol associated with a broadcast wireless access network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476564A (en) * 2009-12-22 2011-06-29 Korea Electronics Telecomm Base station providing communications services via a selected interface supporting a communications protocol
CN107079329A (zh) * 2014-10-15 2017-08-18 英特尔Ip公司 在紧密集成的WiFi/LTE中的上行链路流量控制方法

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