WO1999049624A1 - Method and apparatus with configurable functionality for a telecommunication system - Google Patents
Method and apparatus with configurable functionality for a telecommunication system Download PDFInfo
- Publication number
- WO1999049624A1 WO1999049624A1 PCT/EP1999/001889 EP9901889W WO9949624A1 WO 1999049624 A1 WO1999049624 A1 WO 1999049624A1 EP 9901889 W EP9901889 W EP 9901889W WO 9949624 A1 WO9949624 A1 WO 9949624A1
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- WO
- WIPO (PCT)
- Prior art keywords
- node
- board
- functionality
- processor
- base station
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
- H04L49/255—Control mechanisms for ATM switching fabrics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3081—ATM peripheral units, e.g. policing, insertion or extraction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane
- H04L49/405—Physical details, e.g. power supply, mechanical construction or backplane of ATM switches
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5603—Access techniques
- H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
- H04L2012/5607—Radio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5625—Operations, administration and maintenance [OAM]
Definitions
- the present invention relates to a method for increasing the flexibility and use of a telecommunications system.
- the invention relates further to a telecommunications system.
- the present invention relates also to an ATM board unit and a board rack arrangement for use in a telecommunications system.
- a typical radio telecommunications system or Public Land Mobile Network comprises Base Stations (BS) , Base Station Controllers (BSC) (which may also be referred to as Radio Network Controllers (RNC)) and Mobile Switching Centers (MSC).
- a BS is typically formed by one or several Base Transceiver Stations (BTS) .
- BTS Base Transceiver Stations
- the arrangement is such that the BTSs are capable of communicating with Mobile Stations (MS), such as mobile or cellular telephones, via a radio interface.
- a MSC is in turn arranged to provide an interface between the PLMN and an ordinary fixed network, such as a Public Switched Telephone Network (PSTN) or a Plain Old Telephone System (POTS).
- PSTN Public Switched Telephone Network
- POTS Plain Old Telephone System
- the PLMN thus comprises different kinds of nodes (MSCs, BSCs, etc.) arranged at appropriate positions in the network and capable of handling different kinds of information and providing different kinds of functionality to the network system, as will
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- ITU-T International Telecommunication Union - Telecommunication sector
- ETSI European telecommunication Standard Institute
- WCS Wideband Cellular Systems
- a BSC node can be mentioned as one example, this node providing a large number of functions that need to be allocated to the available processing resources.
- CODECs pooled voice encoders/decoders
- Each CODEC in the pool forms a resource which is handled and connected for a voice call when the need arises.
- Conventional systems have one CODEC allocated per Transceiver (TRX) or per user channel regardless of whether or not this is used. Data calls are also connected through the CODEC, although the function of the CODEC is passive in this case.
- WCS Wideband Cellular System
- BTS Base Transceiver Stations
- RNC Radio Network Controls
- An object of the present invention is to provide a solution which enables a large pool of reconfigurable resources that may be capable of handling various kinds of services within the system, and which solution enables a more optimized use of the pooled devices and network elements.
- An object of the present invention is to provide a solution by means of which functional features of a telecommunications network may be changed in a flexible manner. 4
- An object of the present invention is to provide a solution by means of which it may be possible to simplify the general configuration of the system, to minimize the number of required components and to decrease the amount of different kinds of components, and thus to decrease the overall design, buildup, and maintenance costs of me system.
- the objects are obtained by a method of operating a telecommunications system comprising a plurality of telecommunication nodes interconnected by communication channels, each node processing data relating to terminals connected to the telecommunications system and having a data processing functionality.
- the method comprises a step of dynamically configuring the functionality of at least one node of the telecommunication system by installing or modifying software in at least one board unit of said node.
- a telecommunications system comprises at least one base station node, a base station controller node for controlling said at least one base station node, a switching center node operationally connected to said base station controller node for handling the traffic from and to said at least one base station node.
- at least one of the nodes provides functionality for use in the operation of the telecommunications system, and a software configurable board unit providing general purpose resource is implemented within said at least one node, the arrangement being such that the functionality of die board unit can be changed in accordance with particular requirements of the telecommunications system.
- the invention provides further a printed board unit, which comprises an ATM interface, a board processor unit, a digital signal processor, an operational connection 5 between the ATM interface and the board processor unit, an operational connection between the board processor unit and the digital signal processor, and an operational connection between the application and the ATM interface.
- the arrangement of the board unit is such that the board processor unit forms a general purpose resource and is capable of changing the functionality of the digital signal processor, whereafter the digital signal processor provides changed functionality towards the ATM interface.
- the invention provides also a device rack for a telecommunications node, comprising several multifunction board units, interface towards the node, means for operationally connecting the multifunction board units and the interface.
- the arrangement is such that the functionality of at least one of the multifunction boards can be changed by means of software in accordance with the needs of a certain telecommunications svstem.
- the inventive solution may be used for a large variety of different kind of applications in various nodes of a telecommunications system, especially in a mobile telecommunications system.
- the invention makes it possible to allocate multiple functions to better meet the actual traffic needs in the system and also to meet the future combinations of services.
- the solution may provide means for obtaining sufficient amount of memory to fulfill the needs of high speed data services.
- a required bandwidth for inter-processor communication may be achieved independently of the physical location of the adjacent processors.
- the granularity of the system can be at the signal processor level rather than at the board level making it easier for the resource handler to manage the pooled resources or objects optimally.
- several channels/devices may be run under one processor. The invention may assist further in eliminating the channel fragmentation problem.
- Fig. 1 is a schematic presentation of a Wideband Cellular System (WCS):
- Fig. 2 discloses a B-ISDN reference protocol model
- Fig. 3 discloses a possible structure for an ATM Cell Switching Network (ACSN) node
- Fig. 4 is a block diagram for an ATM Multifunction Board (AMB) arrangement according to one embodiment of the present invention.
- AMB ATM Multifunction Board
- Fig. 5 discloses another possible AMB
- Figs. 6 to 8 disclose schematically certain embodiments of the present invention.
- Figs. 9 and 10 disclose flow charts in accordance with two embodiments of the present invention.
- Fig. 1 is a schematic presentation illustrating the general arrangement of a Wideband Cellular System (WCS) so as to give an example of the environment in which the invention can be implemented.
- the WCS contains a Base Station (BS) 12 arranged to communicate via an air interface 11 with a Mobile Station (MS) 10, a Base Station Controller (BSC) 14, and a Mobile Switching Center (MSC) 16.
- the BS 12 is controlled by the Base Station Controller (BSC), which may also be referred to as a Radio Network Controller (RNC).
- RNC Radio Network Controller
- the BSC 14 can be arranged to switch the connections between mobile stations.
- a mobile network usually includes several BSs. BSCs and in most cases also more than one MSC.
- the interface 13 between the BS 12 and the BSC 14 is of the so called "Super A-type".
- the Super A connection can be defined as an ATM (Asynchronous Transfer Mode) based connection which may, for example, have a transfer rate of 1.5 Mb/s for each base station BS.
- the connection between the BSC 14 and the MSC 16 is, in turn, implemented by the so called "A-connection", the transfer rate thereof being e.g. 4 x 1.5 Mb/s for each BSC.
- the MSC 16 is connected e.g. by a 155 Mb/s data connection 17, such as an optical fiber cable connection, to a local ATM network (not shown, but which may be e.g. an ATM LAN; ATM Local Area Network using IP protocol) so as to enable transmission of data packets between the ATM network and the MSC 16.
- a local ATM network not shown, but which may be e.g. an ATM LAN; ATM Local Area Network using IP protocol
- Fig. 1 shows also Maintenance Tools (MT) 18 operationally connected to each of the MSC 16, BSC 14 and BST2.
- MT Maintenance Tools
- a MT resource might be implemented by means of a portable computer of similar means and suitable software.
- ATM is a cell based switching and multiplexing system standardized by ITU-T, ANSI (American National Standards Institute), ETSI, and ATM forum.
- the ATM format is used e.g. in ITU-T standards for a B-ISDN (Broadband Integrated Services Digital Network; for more details, see e.g. ITU-T. Recommendation 1.321, B-ISDN Protocol Reference Model and its Application, 1991) , and thus Fig. 2 discloses a B- ISDN protocol reference model so as to clarify the ATM format.
- the model is divided into layers and planes. From these the planes are responsible for the actual transfer of the information (user plane), signalling (control plane) and management of the network (management plane).
- Each of the planes is, in turn, divided into four layers: Physical Layer (PHY), ATM layer, ATM Adaptation Layers (AALs) and Higher layers.
- PHY Physical Layer
- ATM layer is responsible for the switching and multiplexing of ATM cells
- Higher layers include all the higher layer tasks.
- the function of the AALs is to adapt various services to the ATM cell format.
- the virtual ATM connections carried above the AALs may either have a Constant Bit Rate (CBR) or an Unspecified Bit Rate (UBR)
- the ATM "cell” is the basic transmission unit of the ATM.
- the standardized size of the cell is 53 bytes, from which the 5 first bytes form the headnote and the remaining 48 bytes the actual load. Regardless of the used layer, all ATM traffic is carried and switched in cells.
- the services of the AAL layer can be divided in four classes A to D.
- the AAL signalling is divided in different types which are used in accordance with the service class and the connection type. These types are e.g. AALl. AAL2, AAL2', AAL3/4, and AAL5.
- the network nodes need functionality which enables conversion between the above types (e.g. from AAL2 to AAL2')
- Fig. 3 discloses a general structure of an ATM Cell Switching Network (ACSN), which is a platform designed for the handling of the ATM traffic.
- An ASCN comprises typically general hardware and software modules. The basic element thereof is an ATM switch and the related software, which is often referred to as a Spatial Switching (SPAS) .
- the system is controlled by several modules, such as a Control System 9 module, SNMP Element Management module and ATM Cell Transport module. By adding application specific modules to these it is possible to obtain ACSN nodes, such as the BSC or the MSC.
- the ATM switch is implemented as an Application Specific Integrated Circuit (ASIC) in the backplane of a rack.
- ASIC Application Specific Integrated Circuit
- the ATM switch can be implemented within each of the subracks, as is disclosed e.g. by Fig. 6.
- the higher level control is implemented by the Main Processor Board (MPB). All the application specific functions and connections elsewhere than to the ATM switch are implemented by user specific boards (DB, Device Board).
- a software configurable application processor platform which can process both user and control plane information above the ATM layer in a flexible manner provides the basis of a general purpose processing resource.
- the resource is configurable to provide, for example, different kind of functionality, a MSC, BSC or BS node.
- the processor platform can be a Digital Signal Processor (DSP) platform, as shown in the particular embodiments illustrated herein, or other types of processors such as a reduced instruction set (RISC) processor.
- DSP Digital Signal Processor
- RISC reduced instruction set
- Fig. 4 discloses a block diagram of a board unit providing one example of the general purpose processing resource.
- the resource may be in the form of a general purpose configurable board 20 which in the following will be referred to as an ATM Multifunction Board or AMB.
- AMB ATM Multifunction Board
- the implementation of this is a configurable general purpose printed board assembly which has processing capacity to serve a lot of services with different characteristic requirements.
- the AMB assembly 20 contains a number of processors (e.g., Digital Signal Processors [DSPs]) 22 together with an ATM interface or ATM switch port 24 (Asynchronous Transfer Mode switch port).
- DSPs Digital Signal Processors
- the switch port 24 connects the AMS to the ATM switch core in a device rack or subrack (for the racks, see e.g. Fig. 6). All user and control plane communications to and from the AMB take place through this port 24.
- the processing pool consists of a number (e.g. 4) of application processors 22.
- Examples of possible processors are those of C54x and C6x families by Texas 10
- InstrumentsTM e.g. C548 and C6201, respectively.
- the number of processors 22 on a board is limited mainly by two factors: power consumption and the possibility to connect them to the ATM switch.
- Application related programs are run on the application processors 22, and are thus named in Fig. 4 as Application DSP #1 - Application DSP #N.
- each processor 22 has it's own multi-PHIY address in the ATM switch port interface circuit 24.
- This Mux/Demux logic could easily form a bottleneck in the system, especially when high speed data services are processed.
- the elimination of the Mux/Demux logic provides a significant advantage in the overall operation of the AMB.
- logic depicted by box 26 can be utilized consistent with the aspects of the invention, e.g., dynamic configuring of resources and functionalities.
- Usage of such the Mux/Demux logic in the form of a router is understood, e.g., with reference to United States Patent Application Serial No. 09/188,097. entitled “Centralized Queuing For ATM Node", filed November 9, 1998, which is incorporated herein by reference.
- the control plane signalling is routed via a Board Processor (BP) 28, which has it's own multi-PHY address.
- BP Board Processor
- the EP operates under a Main Processor that belongs to the devices disposed in the device rack or subrack of Fig. 6.
- Each of the application processors 22 has a Host Port Interface (HPI) 23.
- HPI 23 is connected to an external data memory space of the EP 28.
- the HPI is used mainly for the administration of the configuration operations of the AMB board 20 (loading or upgrading or amending of DSP software etc. operations).
- the arrangement of the AMB 20 is such that there exists full freedom to load all of the processors on the board with any application software.
- the application processors 22 may be provided with external data memory, and thus it is also possible to fulfill the requirements (e.g. for the buffering) of high speed data services.
- Fig. 4 discloses further UTOPIA (Universal Test & Operations PHY Interface 11 for ATM) buses between the respective application processors 22 and the ATM- interface and also between the Board Processor 28 and the ATM interface.
- the UTOPIA bus definition enables a connection of eight PHY devices to an ATM device (a multi-PHY technique). Each of the devices may provide four physical ports, wherein the handshaking signals are connected by an external logic. The maximum amount of application processors on one board would thus be 28, since one bus is reserved for the Board Processor.
- the UTOPIA buses are standardized and at present considered as a preferred alternative to provide the connections.
- each application processor 22 By replacing e.g. a router processor between each application processor 22 and the ATM Interface 24 a significant advantage is obtained by removing the limitations that this router (or similar) sets for the data processing capacity.
- the required bandwidth for interprocessor communication within the AMB is achieved independently of the physical location of the adjacent processor, which can be on the same ANB or on another board in the same subrack, or even in another subrack or in another node of the system.
- the granularity of the system can be in the application processor level rather than in the board level. This also makes it easier for the resource handler to manage the pooled objects in an optimal manner.
- Fig. 5 discloses an alternative embodiment for the AMB.
- the processors are provided by seven application processor modules 22' #1 to #7 containing a plurality of application processors 22 connected to each other by means of an interface logic 40. This may be implemented by means of an ASIC circuit forming the application processor module 22'.
- These application processor modules 22' are then connected by means of UTOPIA buses to a Switch Port Interface Module (SPIM).
- SPIM forms the interface or switch between the AMB and the network, and is responsible for the routing of the ATM cells.
- the arrangement of Fig. 5 enables a board unit to be provided which contains 28 processors.
- the AMBs may be disposed in a device rack 30 (e.g. so called ATM switch rack) belonging to a PLMN node and containing several AMBs so as to form a pooled resource of the system.
- the rack 30 includes Exchange Terminal (ET) board 32 and a switching apparatus 34 arranged 12 between the various components of the rack 30.
- the Exchange Terminal boards 32 provide the interface between different racks and nodes via connections 36.
- An example of a suitable switching apparatus 34 is shown in United States Patent Application Serial No. 08/188,101, entitled “Asynchronous Transfer Mode Switch", filed November 9, 1998, which is incorporated herein by reference.
- the arrangement is such that the AMBs and/or individual application processors of each AMB can be loaded / updated with the required software e.g. during the installation to take different tasks during the system start up. It is also possible to reconfigure the AMBs or the DSPs thereof during the operation of the system. This can be done e.g. by means of the Maintenance Tools 18 of Fig. 1.
- DHT Diversity Handover Trunk
- - DHT receives ATM cells transmitted by a mobile station (MS) from an ALT board, and controls the handovers of the MS between different base stations.
- MS mobile station
- UDI Unrestricted Digital Information
- the IPR board connected to a MSC node.
- the IPR (Internet Packet Router) board routes IP packets between a mobile station and a fixed telephone network.
- the ALT (ATM & AAL2 Link Termination) board is used for converting an AAL2' cell into AAL2 cells.
- the ALT board may also be used to prioritize the traffic in both ATM and in AAL2 levels.
- the SMX board connected to a BTS node.
- the SMX (Service Multiplexer) board is used for converting AAL2' cells into AAL5 cells.
- Fig. 7 discloses an embodiment providing a BSC node within an ATM switch rack 30 which is designed according to the needs on a given time and place.
- the AMBs are configured to form, from the above mentioned alternatives, PADPs 41, a CODEC 42, a DHT 43 and a UADP 44.
- a main processor board (MPB 45) is also included in the BSC node and connected, e.g., to send/receive control cells and download functionalities via switch 34.
- Fig. 8 discloses an example of the functions the AMB is capable of implementing in a Base Station node.
- the implemented function is Radio Link Multiplexer (RLX), which is involved for instance in the Medium Access control (MAC) functionality of the W-CDMA system.
- RLX Radio Link Multiplexer
- a main processor board (MPB) is also included in the base station node of Fig. 8 and is connected, e.g., to send/receive control cells and download functionalities via switch 34.
- the subracks containing AMB boards can be configured according to the actual and current needs existing in the used system.
- mobile station to mobile station (MS to MS) connections require only DHT (Diversity Handover Trunk) functionality, but mobile station to fixed line connections require also CODEC and or UADP functions.
- the number of DHT boards relative to the CODEC and or UADP boards, i.e. the 14 combination or "mix" between the different boards, can be altered during the operation of the system so as to provide an optimal functionality to meet the needs of the traffic.
- the mix between the required functionalities, which are different applications of the AMBs are adapted to the actual and current needs of the system.
- the possibilities and alternatives to select the most appropriate AMB (or application processor) for the reconfiguration may be based on statistical information or other logical rules, and the selection is controlled by the main controller of the subrack or by the board processor.
- the AMB (or application processor) to be reconfigured is the first AMB (or application processor) in ascending (or descending) order which is not in an active state at the moment the new task / need for a change is determined.
- the chosen application processor architecture has characteristics of both the conventional application processors and RISC processors making it more suitable for a variety of different applications in various nodes of a mobile telecommunications system.
- Fig. 9 discloses a flowchart for exemplifying the operation of preferred embodiments of the invention.
- a need for a change in the operation of the telecommunications network arises, the change being such that it causes a need for a change in the functionality of the system resources (such as the changes explained e.g. in connection with Figs. 6 and 7).
- the system control unit such as a Main Processor Board (MPB) of BSC, determines that the telecommunication system requires a different allocation of resources than before.
- MPB Main Processor Board
- the functionality of an application processor, the entire AMB (all application processors on an AMB), or several AMBs is reconfigured such that the necessary changes are performed. The procedure is controlled by the control unit. After the reconfiguration the operation of the system continues with the new resource "mix" or combination, step 106, until a need for a further change arises.
- the main processor board (MPB 45) of BCS node ascertains whether there are any processors in the node which are spare or which could be converted from a prior functionality to a DHT functionality. In the situation of increased MS to MS connections, it is likely that less CODEC functionality is required at the BSC node. Therefore, the main processor board (MPB 45) determines that the CODEC functionality illustrated by one processors 46 in Fig. 7 can be replaced by a DHT functionality. Therefore, as indicated by step 104 of Fig. 9 and depicted by arrow 49 in Fig.
- main processor board (MPB 45) downloads an applications module with DHT functionality to processor 46.
- main processor board (MPB 45) has connected thereto a storage system 47 (such as a hard disk) which has stored thereon applications modules of differing functionality.
- a storage system 47 such as a hard disk
- storage system 47 has DHT applications module 48a, CODEC module 48b, and PADP module 48n stored thereon.
- the main processor board (MPB 45) downloads a copy of the DHT applications module 48a to replace the CODEC functionality at processor 46.
- Fig. 10 discloses a flow chart for a situation in which a new system is initialized during the start up thereof. At step 110 the initialization of a new system is started. 16
- step 114 the operation of the system is controlled, and if a need for a change in the functionality is detected at step 116, the system will be reconfigured by changing the functionality of one or more AMBs in an appropriate node, step 120, whereafter the operation of the system continues with the changed functionality, step 122.
- the invention provides a solution by means of which a significant improvement can be achieved in the area of telecommunications.
- the solution provides means for better meeting the actual traffic needs in a telecommunications system and also for meeting future combinations of the present and possible new services, also in instances in which more general processing resource units, such as the AMB units, are introduced to the system.
- the arrangement according to the present invention can be realized by per se known components and is reliable in use.
- the dynamic configuration of the present invention e.g., the dynamic configuration of AMBs
- AMBs plural boards
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002322391A CA2322391A1 (en) | 1998-03-20 | 1999-03-22 | Method and apparatus with configurable functionality for a telecommunication system |
EP99915680A EP1064763A1 (en) | 1998-03-20 | 1999-03-22 | Method and apparatus with configurable functionality for a telecommunication system |
JP2000538474A JP4421774B2 (en) | 1998-03-20 | 1999-03-22 | Method and apparatus with configurable functionality for an information communication system |
AU34164/99A AU3416499A (en) | 1998-03-20 | 1999-03-22 | Method and apparatus with configurable functionality for a telecommunication system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI980638 | 1998-03-20 | ||
FI980638A FI980638A (en) | 1998-03-20 | 1998-03-20 | Method, arrangement, and apparatus for telecommunications |
US10765198P | 1998-11-09 | 1998-11-09 | |
US60/107,651 | 1998-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999049624A1 true WO1999049624A1 (en) | 1999-09-30 |
Family
ID=26160564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/001889 WO1999049624A1 (en) | 1998-03-20 | 1999-03-22 | Method and apparatus with configurable functionality for a telecommunication system |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1064763A1 (en) |
JP (1) | JP4421774B2 (en) |
AU (1) | AU3416499A (en) |
CA (1) | CA2322391A1 (en) |
WO (1) | WO1999049624A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1094621A2 (en) * | 1999-10-22 | 2001-04-25 | Lucent Technologies Inc. | Systems and methods for phase multiplexing in assigning frequency channels for a wireless communication network |
WO2002082753A1 (en) * | 2001-04-04 | 2002-10-17 | Telefonaktiebolaget Lm Ericsson | Robust radio base station controller architecture |
EP1335547A1 (en) * | 2002-02-11 | 2003-08-13 | Tenovis GmbH & Co. KG | Method and gateway for the conversion of voice and/or videodata between a circuit switched and a packet switched data network |
DE10049796B4 (en) * | 2000-10-09 | 2005-03-03 | Siemens Ag | Method for transmitting data by means of utopiabus and utopiabus for carrying out the method |
EP1841247A2 (en) * | 2006-03-20 | 2007-10-03 | Alcatel Lucent | Method and apparatus for implementing a uniform platform for data/voice service |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2535558A1 (en) * | 2003-08-15 | 2005-03-03 | Thomson Licensing | Changeable functionality in a broadcast router |
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WO1996004762A1 (en) * | 1994-08-01 | 1996-02-15 | British Telecommunications Public Limited Company | Switching in a telecommunications service node |
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1999
- 1999-03-22 WO PCT/EP1999/001889 patent/WO1999049624A1/en not_active Application Discontinuation
- 1999-03-22 AU AU34164/99A patent/AU3416499A/en not_active Abandoned
- 1999-03-22 CA CA002322391A patent/CA2322391A1/en not_active Abandoned
- 1999-03-22 EP EP99915680A patent/EP1064763A1/en not_active Ceased
- 1999-03-22 JP JP2000538474A patent/JP4421774B2/en not_active Expired - Lifetime
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US5390171A (en) * | 1991-05-08 | 1995-02-14 | Siemens Aktiengesellschaft | Switching system |
US5726985A (en) * | 1993-10-20 | 1998-03-10 | Lsi Logic Corporation | ATM communication system interconnect/termination unit |
WO1996004762A1 (en) * | 1994-08-01 | 1996-02-15 | British Telecommunications Public Limited Company | Switching in a telecommunications service node |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1094621A2 (en) * | 1999-10-22 | 2001-04-25 | Lucent Technologies Inc. | Systems and methods for phase multiplexing in assigning frequency channels for a wireless communication network |
DE10049796B4 (en) * | 2000-10-09 | 2005-03-03 | Siemens Ag | Method for transmitting data by means of utopiabus and utopiabus for carrying out the method |
WO2002082753A1 (en) * | 2001-04-04 | 2002-10-17 | Telefonaktiebolaget Lm Ericsson | Robust radio base station controller architecture |
US7269181B2 (en) | 2001-04-04 | 2007-09-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Robust radio base station controller architecture |
EP1335547A1 (en) * | 2002-02-11 | 2003-08-13 | Tenovis GmbH & Co. KG | Method and gateway for the conversion of voice and/or videodata between a circuit switched and a packet switched data network |
DE10205574B4 (en) * | 2002-02-11 | 2006-08-31 | Tenovis Gmbh & Co. Kg | Method and gateway for converting voice and / or video data between a circuit-switched and a packet-oriented data network |
EP1841247A2 (en) * | 2006-03-20 | 2007-10-03 | Alcatel Lucent | Method and apparatus for implementing a uniform platform for data/voice service |
EP1841247A3 (en) * | 2006-03-20 | 2008-03-12 | Alcatel Lucent | Method and apparatus for implementing a uniform platform for data/voice service |
US7864743B2 (en) | 2006-03-20 | 2011-01-04 | Alcatel Lucent | Method and apparatus for implementing a uniform platform for data/voice service |
Also Published As
Publication number | Publication date |
---|---|
AU3416499A (en) | 1999-10-18 |
JP4421774B2 (en) | 2010-02-24 |
CA2322391A1 (en) | 1999-09-30 |
JP2002508626A (en) | 2002-03-19 |
EP1064763A1 (en) | 2001-01-03 |
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