WO2009108183A1 - Wimax hybride et wi-fi - Google Patents

Wimax hybride et wi-fi Download PDF

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Publication number
WO2009108183A1
WO2009108183A1 PCT/US2008/054879 US2008054879W WO2009108183A1 WO 2009108183 A1 WO2009108183 A1 WO 2009108183A1 US 2008054879 W US2008054879 W US 2008054879W WO 2009108183 A1 WO2009108183 A1 WO 2009108183A1
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WO
WIPO (PCT)
Prior art keywords
network
wimax
hybrid
packet
packets
Prior art date
Application number
PCT/US2008/054879
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/US2008/054879 priority Critical patent/WO2009108183A1/fr
Publication of WO2009108183A1 publication Critical patent/WO2009108183A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation
    • H04L45/125—Shortest path evaluation based on throughput or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/22—Alternate routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • 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

Definitions

  • the embodiments herein generally relate to telecommunication networks, and, more particularly, to wireless 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. One solution is to move towards the more efficient licensed WiMAX with which operators can guarantee Quality of Service (QoS) to its customers.
  • QoS Quality of Service
  • WiMAX Wi-Fi
  • Wi-Fi devices There are millions of Wi-Fi devices that are made and that are being used. There is a need to provide better service levels to these Wi-Fi devices.
  • WiMAX paid spectrum is expensive and operators will require a solution to effectively use this expensive spectrum.
  • an embodiment herein provides a hybrid network system, comprising of multiple WiMAX base stations, multiple dual technology hybrid wireless nodes, and a hybrid controller at each backhaul points of WiMAX network and Wi-Fi network connecting both WiMAX and Wi-Fi networks; where each hybrid wireless node comprises of WiMAX Subscriber Station (SS) module to link with at least one of said WiMAX base stations, Wi-Fi Access Point interface, Wi-Fi interfaces and a WiMAX Base Station (BS) interface for WiMAX customer access.
  • SS WiMAX Subscriber Station
  • BS WiMAX Base Station
  • an embodiment herein also provides a method of providing a hybrid network comprising of multiple WiMAX base stations, multiple dual technology hybrid wireless nodes, and a hybrid controller at each backhaul point connecting both WiMAX and Wi-Fi networks, the method having the hybrid wireless nodes as last- mile access nodes to end-users; the controller classifying each packet destined to end-user into service classes; the controller analyzing congestion in Wi-Fi and WiMAX networks; the controller routing the packets on either one of WiMAX network or Wi-Fi network based on requirements of service classes and congestion on Wi-Fi and WiMAX networks; and end-users accessing either of Wi-Fi network or WiMAX network using said hybrid wireless nodes.
  • an embodiment herein also provides a method of providing a hybrid network comprising of multiple WiMAX base stations, multiple dual technology hybrid wireless nodes, where each hybrid wireless node comprises of a WiMAX SS module to link with at least one WiMAX base stations, Wi-Fi interfaces, Wi- Fi Access Point interface and a WiMAX BS, and a hybrid controller at each backhaul point connecting both WiMAX and Wi-Fi networks, the method having end-users accessing either of Wi-Fi network or WiMAX network using the hybrid wireless nodes, the hybrid wireless node classifying each packet destined to Internet into service classes; the hybrid wireless node analyzing congestion in Wi-Fi and WiMAX networks; the hybrid wireless node routing the packet on either the WiMAX network or Wi-Fi network based on requirements of service classes and congestion on the Wi-Fi and WiMAX 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 network controller according to an embodiment herein;
  • FIG. 3 illustrates a schematic diagram of a hybrid wireless node 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 achieve this by providing a hybrid network that consists of WiMAX base stations (BS), and dual technology hybrid wireless nodes that has Wi-Fi interfaces, Wi-Fi access point interface, WiMAX SS interface and a WiMAX BS interface to link with WiMAX BS and users using WiMAX devices.
  • BS WiMAX base stations
  • dual technology hybrid wireless nodes that has Wi-Fi interfaces, Wi-Fi access point interface, WiMAX SS interface and a WiMAX BS interface to link with WiMAX BS and users using WiMAX devices.
  • a Hybrid network that consists of WiMAX base stations (103), and dual technology hybrid wireless nodes (102), and a hybrid network controller (101) is shown in FIG. 1. Users with Wi-Fi devices or WiMAX devices can connect to one of said hybrid wireless nodes (102).
  • a hybrid network controller (101) connects to both the WiMAX and Wi-Fi networks.
  • Each packet destined for a user shall be classified by said 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
  • All packets routed through WiMAX BS (103) will reach said hybrid wireless node (102) through a WiMAX interface.
  • Packets that belong to a service class having 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) will be placed on a Wi-Fi network.
  • Packets that are meant for Wi-Fi travel through Wi-Fi network before reaching said hybrid wireless node (102).
  • Said hybrid wireless node (102) takes packets received from said WiMAX base station and said network and transmits said packets to a user device on a Wi-Fi interface or a WiMAX interface. If user is accessing the network using Wi-Fi, packets are sent to user device by hybrid wireless node (102) using Wi-Fi. If user is accessing the network using WEVIAX, packets are sent to user device by hybrid wireless node (102) using WiMAX.
  • each hybrid wireless node (102) decides whether to send incoming packets from customer devices to the WiMAX 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. 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 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 with a high 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
  • All packets routed through WiMAX base station (103) will reach said hybrid network controller (101) through a WiMAX path.
  • 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) will be placed on a Wi-Fi network.
  • Packets that are meant for Wi-Fi travel through Wi-Fi network before reaching said hybrid network controller (101).
  • a VoIP session from a handheld/phone will be routed by said hybrid wireless node (102) through a WiMAX interface
  • a browsing or Instant Messaging session will be routed by said hybrid wireless node (102) through a Wi-Fi network.
  • the controller/ hybrid wireless nodes 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/ hybrid wireless nodes 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 WiMAX spectrum is under utilized, some packets might be routed on WiMAX 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 Wi-Fi network is not loaded, new traffic might be routed through the Wi-Fi network, however this might result in deterioration of performance.
  • hybrid network controller 101
  • Said controller connects to both the WiMAX and Wi-Fi networks.
  • the schematic of said controller is as shown in FIG. 2.
  • said hybrid network controller consists of a hybrid switching engine (201), Wi-Fi mesh interfaces for connecting to hybrid wireless nodes in the Wi-Fi network (202) and interfaces for connecting to a WiMAX base station (103) (203) and to the Internet (204).
  • Said interfaces may be an Ethernet interface, a fiber interface or any other suitable interface.
  • Said Wi-Fi mesh interfaces receive packets from a Wi-Fi network and forwards received packets to said switching engine (201).
  • Said WiMAX interface receives packets from the WiMAX base station and forwards received packets to said switching engine (201).
  • Said switching engine (201) takes packets received from said Wi-Fi network and said WiMAX base station (103) and forwards said packets onto the Internet through an interface (204).
  • said switching engine (201) receives packets from the Internet through an interface (204). Said engine (201) analyzes received packets. Packets that belong to a service class with a higher performance requirement will be placed on a WiMAX network and routed to WiMAX base station (103) through an interface (203). Packets that belong to a service class with a lower performance requirement will be placed on a Wi-Fi network and are routed to the Wi-Fi network interface (202). [0024]In an event of failure of any of the links, said 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.
  • said 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 WiMAX spectrum is under utilized, some packets might be routed on WiMAX 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 Wi-Fi network is not loaded, some traffic might be routed through the Wi-Fi network, albeit at the cost of degradation in performance.
  • Hybrid wireless nodes (102) have a hybrid switching engine (304), Wi-Fi mesh interfaces for meshing with other hybrid wireless nodes (202), and also a Wi-Fi Access Point for serving customers with Wi-Fi devices (302).
  • said hybrid wireless node supports a WiMAX subscriber station (SS) (301) interface to connect with a WiMAX base station (BS) and a WiMAX base station (BS) (303) interface for serving customers with WiMAX devices.
  • Said Wi-Fi mesh interfaces (202) are not restricted to Wi-Fi but is obvious to any person skilled in the art that said mesh interfaces can be extended to any wireless distribution method.
  • the architecture of a hybrid wireless node (102) is as shown in FIG. 3. Said hybrid wireless node (102) receives packets from users.
  • said Wi-Fi Access Point (AP) (302) receives packets from user device and forwards received packets to said switching engine (304).
  • said WiMAX base station (303) interface receives packets from user device and forwards received packets to said switching engine (304).
  • Said switching engine decides whether to send incoming packets from customer devices to the WiMAX 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 to the WiMAX base station (103) through said WiMAX SS (301).
  • Wi-Fi mesh interfaces (202) receive packets from a Wi-Fi network and forwards received packets to said switching engine (304).
  • Said WiMAX SS (301) receives packets from said WiMAX base station (103) and forwards received packets to the said switching engine (304).
  • Said switching engine (304) takes the packets received from said Wi-Fi network and said WiMAX base station (103) and forwards said packets to the user. If said user is using a Wi-Fi capable device, then said switching engine (304) uses a Wi-Fi Access Point (302) interface to transmit packets to said user. If said user is using a WiMAX capable device, then said switching engine (304) uses a WiMAX BS (303) interface to transmit packets to said user.
  • FIG. 4 shows a flow diagram of the process of a user sending packets onto the Internet.
  • a user transmits packets to a hybrid wireless node using Wi-Fi or WiMAX devices (401), (402).
  • Said hybrid wireless node (102) analyzes received packets (403) and classifies said packets according to service class. Packets that belong to a service class with a higher performance requirement will be routed through said WiMAX base station (103). Packets that belong to a service class with a lower performance requirement will be placed on a Wi-Fi network.
  • hybrid wireless node (102) analyzes load on the Wi-Fi network (405) and if said network is congested, hybrid wireless node analyzes the load on the WiMAX network (407), before making a decision on which network to use to transmit said packets. If the Wi-Fi network is not congested then said packets are transmitted to said hybrid controller (101) using Wi-Fi (409) network. If said Wi-Fi network is congested and the WiMAX network is comparatively less loaded, then said packets are transmitted to said hybrid controller (101) using WiMAX (410). However, if the Wi-Fi network is congested and the WiMAX network is also congested, then said packets are transmitted to said hybrid controller (101) using Wi-Fi (409) network.
  • hybrid wireless node (102) analyzes the load on the WiMAX network (406) and if said network is congested, hybrid wireless node analyzes the load on the Wi-Fi network (408), before making a decision on which network to use to transmit said packets. If the WiMAX network is not congested then said packets are transmitted to said hybrid controller (101) using WiMAX (410). If the WiMAX network is congested and the Wi-Fi network is comparatively less loaded, then said packets are transmitted to said hybrid controller (101) using Wi-Fi (409) network.
  • WiMAX wireless personal area network
  • Wi-Fi wireless personal area network
  • said packets are transmitted to said hybrid controller (101) using WiMAX (410).
  • said hybrid network controller (101) on receiving packets from the Wi-Fi network and said WiMAX BS (103), takes said received packets and transmits said received packets onto the Internet (411).
  • FIG. 5 shows a flow diagram of a user receiving packets from the Internet.
  • Said hybrid network controller (101) receives packets from the Internet and analyzes the received packets on the basis of service class (502). Packets that belong to a service class with a higher performance requirement will be routed through said WiMAX base station (103). Packets that belong to a service class with a lower performance requirement will be routed through the Wi-Fi network.
  • said controller (101) analyzes the load on the Wi-Fi network (503) and if said network is congested, controller analyzes the load on the WiMAX network (505), before making a decision on which network to use to transmit said packets. If the Wi-Fi network is not congested then said packets are transmitted to a hybrid wireless node (102) using Wi-Fi (507) network. If the Wi-Fi network is congested and the WiMAX network is comparatively less loaded, then said packets are transmitted to a hybrid wireless node (102) using WiMAX (508). However, if the Wi-Fi network is congested and the WiMAX network is also congested, then said packets are transmitted to a hybrid wireless node (102) using Wi-Fi (507) network.
  • said controller (101) analyzes the load on the WiMAX network (504) and if said network is congested, controller analyzes the load on the Wi-Fi network (506), before making a decision on which network to use to transmit said packets. If the WiMAX network is not congested then said packets are transmitted to a hybrid wireless node (102) using WiMAX (508). If the WiMAX network is congested and the Wi-Fi network is comparatively less loaded, then said packets are transmitted to a hybrid wireless node (102) using Wi-Fi (507) network. However, if the WiMAX network is congested and the Wi-Fi network is also congested, then said packets are transmitted to a hybrid wireless node (101) using WiMAX (508).
  • Said hybrid wireless node (102) on receiving packets from the Wi-Fi network and said WiMAX BS (103), takes said received packets and transmits said received packets to user (509). If said user is using a Wi-Fi capable device, then said hybrid wireless node
  • said hybrid wireless node (102) transmits packets to said user using said WiMAX BS (303).
  • wireless network operators can offer
  • WiMAX quality service to Wi-Fi users and also support WiMAX only devices without modifying the network.
  • operators can make more efficient use of WiMAX spectrum, as only packets belong to a service class with a higher performance requirement are sent through the WiMAX network, more users can be supported per
  • WiMAX MHz than that would have been possible with a pure WiMAX network.
  • Another advantage is that since there are multiple networks available, each of the networks acts as a backup for the other network.
  • Hybrid wireless nodes 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 WiMAX. Said hybrid wireless nodes can also have a WiMAX base station interface to serve WiMAX only home devices.

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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 décrits ici décrivent un réseau hybride comprenant de multiples stations de base WiMAX, de multiples nœuds sans fil hybrides double technologie, chaque nœud sans fil hybride étant composé d’une interface Station Abonné WiMAX pour liaison aux stations de base WiMAX, de multiples interfaces Wi-Fi, de multiples interfaces de Point d’Accès Wi-Fi et d’une interface BS WiMAX pour liaison aux utilisateurs qui utilisent des dispositifs WiMAX, et un dispositif de commande hybride sur chaque point de liaison reliant les réseaux WiMAX et Wi-Fi à l’internet.
PCT/US2008/054879 2008-02-25 2008-02-25 Wimax hybride et wi-fi WO2009108183A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2008/054879 WO2009108183A1 (fr) 2008-02-25 2008-02-25 Wimax hybride et wi-fi

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Application Number Priority Date Filing Date Title
PCT/US2008/054879 WO2009108183A1 (fr) 2008-02-25 2008-02-25 Wimax hybride et wi-fi

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Cited By (4)

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US20110134891A1 (en) * 2009-12-08 2011-06-09 Intel Corporation WiMAX Scheduling Algorithm for Co-Located WiFi and WiMAX Central Points
WO2015009469A1 (fr) * 2013-07-17 2015-01-22 Qualcomm Incorporated Gestion de multiples bandes dans des réseaux relais sans fil
WO2016085555A1 (fr) * 2014-11-24 2016-06-02 Laird Technologies, Inc. Transfert intercellulaire sans coupure géré par le client et basculement de liaison continue pour des réseaux sans fil
RU2601429C2 (ru) * 2011-12-06 2016-11-10 Нек Корпорейшн Система связи

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US20050232259A1 (en) * 2004-04-19 2005-10-20 Inching Chen Method and apparatus for data routing
US20060072647A1 (en) * 2004-10-05 2006-04-06 Kamilo Feher Hybrid communication and broadcast systems
US20060251115A1 (en) * 2004-12-03 2006-11-09 Haque Samudra E Broadband multi-service, switching, transmission and distribution architecture for low-cost telecommunications networks
US20070019959A1 (en) * 2005-07-19 2007-01-25 Logus Broadband Wireless Solutions Inc. Apparatus and method for transferring signals between a fiber network and a wireless network antenna

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US20050232259A1 (en) * 2004-04-19 2005-10-20 Inching Chen Method and apparatus for data routing
US20060072647A1 (en) * 2004-10-05 2006-04-06 Kamilo Feher Hybrid communication and broadcast systems
US20060251115A1 (en) * 2004-12-03 2006-11-09 Haque Samudra E Broadband multi-service, switching, transmission and distribution architecture for low-cost telecommunications networks
US20070019959A1 (en) * 2005-07-19 2007-01-25 Logus Broadband Wireless Solutions Inc. Apparatus and method for transferring signals between a fiber network and a wireless network antenna

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110134891A1 (en) * 2009-12-08 2011-06-09 Intel Corporation WiMAX Scheduling Algorithm for Co-Located WiFi and WiMAX Central Points
GB2476359A (en) * 2009-12-08 2011-06-22 Intel Corp WiMAX scheduling algorithm for co-located WiFi and WiMAX central points
GB2476359B (en) * 2009-12-08 2012-07-18 Intel Corp WiMAX scheduling algorithm for co-located WiFi and WiMAX central points
US8705494B2 (en) 2009-12-08 2014-04-22 Intel Corporation WiMAX scheduling algorithm for co-located WiFi and WiMAX central points
RU2601429C2 (ru) * 2011-12-06 2016-11-10 Нек Корпорейшн Система связи
US9635593B2 (en) 2011-12-06 2017-04-25 Nec Corporation Communication system
WO2015009469A1 (fr) * 2013-07-17 2015-01-22 Qualcomm Incorporated Gestion de multiples bandes dans des réseaux relais sans fil
US20150023245A1 (en) * 2013-07-17 2015-01-22 Qualcomm Incorporated Multi-band management of wireless relaying networks
US9749874B2 (en) 2013-07-17 2017-08-29 Qualcomm Incorporated Multi-band management of wireless relaying networks
WO2016085555A1 (fr) * 2014-11-24 2016-06-02 Laird Technologies, Inc. Transfert intercellulaire sans coupure géré par le client et basculement de liaison continue pour des réseaux sans fil

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