WO1999009685A2 - Systeme de telecommunications sans fil - Google Patents

Systeme de telecommunications sans fil Download PDF

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Publication number
WO1999009685A2
WO1999009685A2 PCT/IL1998/000385 IL9800385W WO9909685A2 WO 1999009685 A2 WO1999009685 A2 WO 1999009685A2 IL 9800385 W IL9800385 W IL 9800385W WO 9909685 A2 WO9909685 A2 WO 9909685A2
Authority
WO
WIPO (PCT)
Prior art keywords
user
base station
interface
commutator
interface converter
Prior art date
Application number
PCT/IL1998/000385
Other languages
English (en)
Other versions
WO1999009685A3 (fr
Inventor
Doron Koren
Sergey Toujikov
Lior Nabat
Original Assignee
Telescicom Ltd.
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 Telescicom Ltd. filed Critical Telescicom Ltd.
Priority to AU87464/98A priority Critical patent/AU8746498A/en
Publication of WO1999009685A2 publication Critical patent/WO1999009685A2/fr
Publication of WO1999009685A3 publication Critical patent/WO1999009685A3/fr

Links

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • 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]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Definitions

  • the present invention relates to wireless access systems in general and, in particular, to wireless access systems and wireless local loop systems having substantially increased data rates.
  • a number of communication systems are known in the art.
  • the earliest systems were wired systems, such as the Plain Old Telephone System (POTS) , wherein data are transferred over copper wires from a central switching office to the homes of individual users .
  • POTS Plain Old Telephone System
  • Such systems typically are capable of transferring 33 KBit/sec over a 4 Khz bandwidth.
  • An alternative system is the so-called wireless local loop, wherein data are transmitted by a wireless transmitter from a central switching office and received by a receiver at the home of the user.
  • These systems provide good speech quality comparable to the POTS system, with the increased flexibility and lower cost of being wireless.
  • These systems typically are capable of transferring 33Kbit/sec over a conventional telephone channel, similar to the wired systems.
  • LAN local area networks
  • a pair of interface converters is provided coupled between the networks.
  • the interface converter adds identification data to each packet of data being transferred which indicates both the source address and the destination address. In this way, the bridge directs each data packet to the proper destination.
  • a base station for use in a wireless access system, the base station including a commutator including a base MAC (medium access control) , at least one User WAN/LAN interface, and an interface converter coupled between each User WAN/LAN interface and the commutator.
  • a base MAC medium access control
  • a wireless access system including a plurality of user stations, and at least one base station coupled by RF transceiving apparatus to each of the user stations, the base station including a commutator including a base MAC (medium access control) , at least one User WAN/LAN interface, and an interface converter coupled between each User WAN/LAN interface and the commutator.
  • a base station coupled by RF transceiving apparatus to each of the user stations
  • the base station including a commutator including a base MAC (medium access control) , at least one User WAN/LAN interface, and an interface converter coupled between each User WAN/LAN interface and the commutator.
  • each user station includes a User WAN/LAN interface, a user MAC, a interface converter coupling the user MAC to the User WAN/LAN interface and to the base MAC, a radio transmitter, a radio receiver, and a data filter coupled between the receiver and the interface converter.
  • a method for wireless downlink communication over a wireless access system including at least one base station and a plurality of user stations, the method including the steps of sequentially looking at each of a plurality of interface converters in the base station to see whether they are empty; if an interface converter is not empty, sending a signal to a commutator in the base station requesting allocation of resources; indicating to the interface converter when resources have been allocated; transferring a data packet from the interface converter to a transmitter buffer in the base station; when transmitting resources are available, transmitting a data packet from the transmitter buffer to receivers in the user stations.
  • a method for wireless uplink communication over a wireless access system including at least one base station and a plurality of user stations, the method including the steps of providing a signal from a user MAC in a user station to a commutator in the base station indicating that an interface converter in the user station is not empty and requesting allocation of resources; allocating resources by the commutator; indicating to the interface converter when resources have been allocated; transferring a data packet from the interface converter to a receiver in the base station .
  • an add-on system for permitting data transmission in a wireless access system including a plurality of user stations each having a radio receiver and a radio transmitter, the add-on system including: a base station including: a commutator including a Medium Access Control (base MAC) ; at least one User WAN/LAN interface; and an interface converter coupled between each User WAN/LAN interface and the commutator; and a user station addition including: a User WAN/LAN interface; a user MAC; a interface converter coupling the user MAC to the User WAN/LAN interface and to the commutator in the base station; a data filter coupled between the radio receiver and the interface converter.
  • base MAC Medium Access Control
  • FIG. 1 is a schematic illustration of a wireless access system constructed and operative in accordance with one embodiment of the present invention for downlink communication;
  • Fig. 2 is a schematic electric circuit diagram of a commutator for the system of Fig. 1;
  • FIG. 3 is a schematic illustration of a wireless local loop system constructed and operative in accordance with one embodiment of the present invention for downlink communication
  • Fig. 4 is a flow chart of the operation of the commutator of the invention for a downlink communication
  • Fig. 5 is a flow chart of the operation of the commutator of the invention for an uplink communication.
  • the present invention relates to wireless access systems, for example, wireless local loop (WLL) systems, having a significantly increased data rate.
  • WLL wireless local loop
  • the system is based on inserting a data base station into a wireless access system, thereby permitting data transfer, as well as telephony transmission.
  • the system provides data traffic flow according to the available data load, without transmitting empty bits. This is accomplished by adding a commutator and a plurality of interface converters between each base station and its plurality of user stations.
  • the end user station is coupled to a device which acts like a conventional local area network (LAN) as far as its interactions with the user station are concerned, but which serves as a part of the wireless access system as far as data transmission and reception is concerned.
  • LAN local area network
  • an interface converter sends a signal to the commutator that it has a data frame to send.
  • the commutator determines when the transmission resources are available, and then transfers the data frame from the interface converter of the source to the interface converter of the destination.
  • the system includes a wireless access base station 50 including at least one User WAN/LAN interface 52 for receiving communications from a communication system 54.
  • a interface converter 56 is coupled to each User WAN/LAN interface 52 for interfacing between the communication system 54 and a plurality of users.
  • User WAN/LAN interface 52 can be any conventional User WAN/LAN interface, for physically coupling a communication system to the wireless access system.
  • Interface converters 56 can be any conventional interface converters, which can convert the data from the communication system to a form which can be understood by the wireless system.
  • a commutator 20, including a Medium Access Control (MAC) 18, is provided to control the data flow throughout the base station and to allocate resources.
  • Commutator 20 is a device including a number of inputs/outputs at one side, and at least one output/input at the other side.
  • the commutator is bi-directional, depending on the direction of data flow. For example, when data is sent from the base station to a user station, the commutator includes many inputs and at least one output. However, if data is flowing from a user station to the base station, the commutator functions with at least one input and a plurality of outputs.
  • the commutator 20 provides switching between the inputs and outputs according to a predefined switching pattern, which can be set by the base MAC, a user defined pattern, or any other conventional switching pattern. For example, the commutator can poll the inputs, one after another. Alternatively, it can perform statistical polling according to statistics input to the base MAC, or the commutator can operate according to any other pre-selected switching pattern.
  • Commutator 20 is coupled to interface converters 56, a transmitter 22, and a receiver 24. With reference to Fig. 2, there is shown a schematic electronic circuit of the commutator 20.
  • Commutator 20 is coupled to interface converters 56 by an address and data bus 26 and a control bus 28.
  • Commutator 20 includes a spooling and transmit state machine 30 and a transmitter buffer 32, which are both coupled to control an RF module 34.
  • Spooling and transmit state machine 30 determines which interface converters 56 have a data packet to transmit and which have no data packet. It sends signals to each User WAN/LAN interface which has a data packet, in turn, to transmit its data packet to commutator 20.
  • the data packet is stored in a transmitter buffer 32, generally FIFO, until a signal is received from RF module 34 that transmission resources are available.
  • the wireless access system further includes a plurality of user stations belonging to individual users. Each user station includes a User WAN/LAN interface 36 coupled to a user MAC 37 and to a interface converter 38 which, in turn, is coupled to a transmitter 44 and, through a data filter 40, to a receiver 42.
  • FIG. 3 there is shown a schematic illustration of a wireless local loop system constructed and operative in accordance with one embodiment of the present invention.
  • the system includes a wireless local loop data base station 10 including a HUB 12, or any other device with an interface to Ethernet, such as a Router, LAN switch, Switched HUB, bridge, etc., for receiving communications from a communications system 14.
  • a plurality of remote bridges 16 are coupled to HUB 12 for interfacing between the communication system 14 and a plurality of users.
  • HUB 12 can be any conventional HUB, such as the Unmanaged HUB Model DFE- 812TX+, manufactured by D-Link Corporation, CA, USA.
  • Remote bridges 16 can be any conventional remote bridges, such as Remote Bridge Model Dl-1140, of D-Link Corporation.
  • a commutator 20' including a Medium Access Control (MAC) 18', is provided to control the data flow throughout the base station and to allocate resources, substantially as described above.
  • Commutator 20' is coupled to remote bridges 16, a transmitter 22', and a receiver 24'.
  • the WLL system further includes a plurality of user stations belonging to individual users, substantially as described above.
  • Operation of this system for a downlink communication is as follows.
  • a data packet to be transmitted to the User WAN/LAN interface 36' of a first user station is received at User WAN/LAN interface 52 in the base station from the communication system 54.
  • User WAN/LAN interface 52 passes the data packet to an interface converter 56' associated with first User WAN/LAN interface 36' , together with packet identification data including source and destination of the packet.
  • User WAN/LAN interface 36' sends a signal to commutator 20 that it has a data frame to send to the first user station.
  • commutator 20 transfers the data packet from User WAN/LAN interface 36' to transmitter 22 for transmission, as described above with reference to Fig. 2.
  • each of User WAN/LAN interfaces 36 has a FIFO memory and can store data frames until they can be sent to commutator 20.
  • Commutator 20 starts with the first interface converter (RBi) and looks to see if it is empty. If yes, the commutator looks at the second interface converter (RB 2 ) to see if it is empty. If yes, it continues to look at each interface converter, in turn, until it looks at the last interface converter (RB n ) , at which point it starts again at RBi.
  • the commutator sends a signal to the interface converter to transfer its data packet to the transmitter buffer.
  • the commutator then continues to the next interface converter.
  • it finds another interface converter which is not empty it sends a signal to the interface converter to transfer its data packet to the transmitter buffer.
  • the data packet in the transmitter buffer is transmitted when downlink resources are available, in accordance with a transmit signal received from RF card 70. As in conventional wireless access systems, specific resources are allocated in advance for downlink communication.
  • the transmitted signals are received at the user stations by receiver 42 through data filter 40, which filters out those signals which are not addressed to User WAN/LAN interface 36' , and transmits those signals which are addressed to User WAN/LAN interface 36' via interface converter receiver 38' to User WAN/LAN interface 36' . It will be appreciated that each user 36 sees an increased data rate, since few empty bits are transmitted between the base station and user stations.
  • Operation of the system for uplink communication is as follows.
  • a User WAN/LAN interface 36' wishes to send a message to the base station, it passes the data packet to interface converter 38' together with packet identification data.
  • Interface converter 38' indicates to user MAC 37' that its buffer is not empty.
  • User MAC 37' asks base MAC 18 for allocation of resources.
  • commutator 20 indicates, in turn, to each interface converter 38 which has a data packet to transmit, to transmit its data packet.
  • the data packet is transferred from interface converter 38 to receiver 24, and the data packet is stored in transmitter buffer 32 of commutator 20. According to the destination address on each data packet, the commutator transmits the data packet to the appropriate interface converter.
  • a flow chart of the operation of commutator 20 in an uplink communication from a user station to the base station is set forth in Fig. 5.
  • the user MAC in a first user station looks to see if its interface converter URBi is empty. If yes, the first user MAC waits a predetermined delay time, and looks again. When URBi indicates that it is not empty, the user MAC of the first user signals the commutator in the base station that it requests resource allocation. If uplink resources are available, commutator 20 sends a signal to URBi to transmit its data packet. As in conventional wireless access systems, specific resources are allocated in advance for uplink communication. In this manner, commutator 20 signals, in turn, to each URB which is not empty to transmit its data packet to the base station.
  • interface converters which are not empty are allocated resources, thereby substantially reducing the quantity of null bits transmitted.
  • the transmitted signals are received at the commutator which divides the transmitted signals according to their destinations, and transfers each transmission to the appropriate interface converter. It is a particular feature of the present invention in both uplink and downlink communications that, when commutator 20 allocates resources, an empty interface converter will not be allocated any resources. In other words, commutator 20 will skip over the empty interface converter until it is no longer empty. In this way, transmissions of empty data frames are substantially reduced.
  • the add-on system consists of two parts, an additional base station including at least one User WAN/LAN interface, an interface converter coupled to each User WAN/LAN interface, and a commutator, and an addition to each user system including a interface converter, a user MAC, and a data filter.

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

Abstract

Cette invention se rapporte à un système d'accès sans fil, qui comprend plusieurs stations d'utilisateur et au moins une station de base couplée par un émetteur/récepteur RF à chacune des stations d'utilisateur. La station de base comprend un commutateur permettant de commuter entre plusieurs entrées/sorties d'un côté et au moins une sortie/entrée de l'autre côté. Ce système comprend en outre une commande d'accès au support (MAC) de base, au moins une interface d'utilisateur réseau longue distance/réseau local (WAN/LAN), et un convertisseur d'interface couplé entre chaque interface d'utilisateur WAN/LAN et le commutateur. Le commutateur comporte de préférence une commande MAC de base contenant un registre MAC et une logique MAC, un automate fini de transmission et de fonctionnement simultané de phériphériques en ligne, et une mémoire tampon d'émetteur, l'automate fini de transmission et de fonctionnement simultané de périphériques en ligne et la mémoire tampon d'émetteur étant couplés à un module RF.
PCT/IL1998/000385 1997-08-14 1998-08-13 Systeme de telecommunications sans fil WO1999009685A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU87464/98A AU8746498A (en) 1997-08-14 1998-08-13 Wireless telecommunications system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL12154897A IL121548A0 (en) 1997-08-14 1997-08-14 Wireless telecommunications system
IL121548 1997-08-14

Publications (2)

Publication Number Publication Date
WO1999009685A2 true WO1999009685A2 (fr) 1999-02-25
WO1999009685A3 WO1999009685A3 (fr) 1999-07-01

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PCT/IL1998/000385 WO1999009685A2 (fr) 1997-08-14 1998-08-13 Systeme de telecommunications sans fil

Country Status (3)

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AU (1) AU8746498A (fr)
IL (1) IL121548A0 (fr)
WO (1) WO1999009685A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946795A1 (de) * 1999-09-29 2001-04-12 Mediascape Comm Gmbh Datenübertragungssystem
WO2001059995A1 (fr) * 2000-02-08 2001-08-16 Atheros Communications, Inc. Reseau familial hybride
EP1208707A1 (fr) * 1999-08-12 2002-05-29 Elad Barkan Station de base complementaire destinee a une expansion de reseau cellulaire

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245077A2 (fr) * 1986-05-09 1987-11-11 Nec Corporation Système de communications à multiplex temporel avec circuit local commun et fente temporelle locale pour les appels intra-office
EP0332465A2 (fr) * 1988-03-11 1989-09-13 Nec Corporation Système de concentrateur avec moyens d'interrogation-réponse pour la détection de pannes permettant l'arrêt de la taxation pour des appels locaux
US5046066A (en) * 1987-02-09 1991-09-03 Telesystems Slw Inc. Wireless local area network
WO1996022662A1 (fr) * 1995-01-20 1996-07-25 Arraycomm, Inc. Systemes de communication sans fil a haute capacite et ayant une efficacite spectrale
WO1996026618A1 (fr) * 1995-02-24 1996-08-29 Ghazala Shaheen Jamil Malik Interface radio pour un systeme mobile de communication de donnees
EP0758189A2 (fr) * 1995-08-09 1997-02-12 Hewlett-Packard Company Réseau de télécommunication privé sans fil
WO1997012456A1 (fr) * 1995-09-26 1997-04-03 Intertrade Computer Consultants, Inc. Reseau de transmission
US5628052A (en) * 1994-09-12 1997-05-06 Lucent Technologies Inc. Wireless communication system using distributed switched antennas
US5655219A (en) * 1993-03-05 1997-08-05 Hitachi, Ltd. Wireless LAN system capable of re-transmission under management of a base station device to a destination mobile terminal device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245077A2 (fr) * 1986-05-09 1987-11-11 Nec Corporation Système de communications à multiplex temporel avec circuit local commun et fente temporelle locale pour les appels intra-office
US5046066A (en) * 1987-02-09 1991-09-03 Telesystems Slw Inc. Wireless local area network
EP0332465A2 (fr) * 1988-03-11 1989-09-13 Nec Corporation Système de concentrateur avec moyens d'interrogation-réponse pour la détection de pannes permettant l'arrêt de la taxation pour des appels locaux
US5655219A (en) * 1993-03-05 1997-08-05 Hitachi, Ltd. Wireless LAN system capable of re-transmission under management of a base station device to a destination mobile terminal device
US5628052A (en) * 1994-09-12 1997-05-06 Lucent Technologies Inc. Wireless communication system using distributed switched antennas
WO1996022662A1 (fr) * 1995-01-20 1996-07-25 Arraycomm, Inc. Systemes de communication sans fil a haute capacite et ayant une efficacite spectrale
WO1996026618A1 (fr) * 1995-02-24 1996-08-29 Ghazala Shaheen Jamil Malik Interface radio pour un systeme mobile de communication de donnees
EP0758189A2 (fr) * 1995-08-09 1997-02-12 Hewlett-Packard Company Réseau de télécommunication privé sans fil
WO1997012456A1 (fr) * 1995-09-26 1997-04-03 Intertrade Computer Consultants, Inc. Reseau de transmission

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1208707A1 (fr) * 1999-08-12 2002-05-29 Elad Barkan Station de base complementaire destinee a une expansion de reseau cellulaire
US8559312B2 (en) 1999-08-12 2013-10-15 Elad Barkan Systems, devices and methods for providing access to a distributed network
EP1208707B1 (fr) * 1999-08-12 2014-06-25 Elad Barkan Station de base complementaire destinee a une expansion de reseau cellulaire
EP2802189A3 (fr) * 1999-08-12 2015-03-18 Elad Barkan Station de base complémentaire destinée à une expansion de réseau cellulaire
US9392638B2 (en) 1999-08-12 2016-07-12 Barkan Wireless Ip Holdings, L.P. Systems, devices and methods for providing access to a distributed network
US10051133B2 (en) 1999-08-12 2018-08-14 Barkan Wireless Ip Holdings, L.P. Systems, devices and methods for providing access to a distributed network
DE19946795A1 (de) * 1999-09-29 2001-04-12 Mediascape Comm Gmbh Datenübertragungssystem
DE19946795C2 (de) * 1999-09-29 2002-11-28 Mediascape Comm Gmbh Datenübertragungssystem
WO2001059995A1 (fr) * 2000-02-08 2001-08-16 Atheros Communications, Inc. Reseau familial hybride

Also Published As

Publication number Publication date
IL121548A0 (en) 1998-02-08
AU8746498A (en) 1999-03-08
WO1999009685A3 (fr) 1999-07-01

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