MXPA99009382A - Unified access platform - Google Patents

Unified access platform

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Publication number
MXPA99009382A
MXPA99009382A MXPA/A/1999/009382A MX9909382A MXPA99009382A MX PA99009382 A MXPA99009382 A MX PA99009382A MX 9909382 A MX9909382 A MX 9909382A MX PA99009382 A MXPA99009382 A MX PA99009382A
Authority
MX
Mexico
Prior art keywords
speed data
telephony
signal
digital
terminal
Prior art date
Application number
MXPA/A/1999/009382A
Other languages
Spanish (es)
Inventor
R Eames Thomas
Original Assignee
Next Level Communications Llp
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 Next Level Communications Llp filed Critical Next Level Communications Llp
Publication of MXPA99009382A publication Critical patent/MXPA99009382A/en

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Abstract

A Unified Access Platform (UAP) capable of providing telephone and high speed data services in a number of different local loop configurations. In a first embodiment, a broadband digital terminal receives high speed data and telephony signals, and combines them into a cell based signal which is transported to an access multiplexor. At the access multiplexor, a first linecard generates an analog phone signal, and a second linecard generates a high-speed data signal. Analog telephone service is provided over a first twisted wire pair drop cable, while the high speed data service is provided over a second twisted wire pair drop cable. In an alternate embodiment, a broadband digital terminal's cell based signal is transported to two separate terminals. Analog telephone service is provided to a subscriber location over from the first terminal, while high speed data services are provided to a second subscriber location from the second terminal. Yet another embodiment provides analog telephone and high speed data services from a signal linecard located in an access multiplexor. The analog telephone and high speed data signals are generated on the linecard and combined using a diplexor. At the residence, a receiving diplexor is used to separate the analog telephone and high speed data signals. Still another embodiment generates a high speed data signal at an access multiplexor which contains a digital representation of the analog telephone signal. The high speed data signal is sent from the access multiplexor to the residence, where a receiving device generates an analog telephony signal and transmits the high speed data signal to the appropriate terminal equipment.

Description

PLATFORM. OF UNIFIED ACCESS Field of The Invention The present invention relates to a Unified Access Platform (UAP) which is capable of providing high-speed telephony and data services in a number of different local loop configurations.
Antecedents of the Invention New telecommunications services such as access to interconnected networks (Internet) are offered by telephone companies. There is a growing demand for high-speed Internet access, in addition to other new services such as digital television, which require high-speed special connections from networks to residences. However, basic telecommunications services such as the simple, old telephony service (POTs) are currently the main source of public income for telephone companies. These services are typically provided from a central telephone office to the REF .: 31538 residence through pairs of copper wire, twisted, which in some cases have been used for several years, and in some cases have been recently improved. The part of the telecommunications network that connects a central telephone office with the residences of the subscribers is known as the access network or the local loop. Local loop technology is still mainly based on the use of twisted wire pairs, but some optical fibers have been used to extend the terminals for telephony services. There has been little deployment of high-speed digital data services for the data. When used herein, the term high-speed data services refers to any type of digital data service including access to the Internet as well as digital video. The access network equipment for telecommunications services must be capable of supporting the POTs services as well as being able to support the new digital services that eventually have high penetration speeds. A number of technologies have been explored to provide high-speed digital data services and include Hybrid, Hybrid Coaxial Fiber, (HFC), Fiber to the edge of the sidewalk (FTTC), Fiber to the Home (FTTH), Subscriber Line, Digital, Asymmetric (ADSL) and subscriber line, Digital, Very High Speed (VDSL). A general conclusion is that although all these technologies will play a role in the long-term business objectives of telephone companies; most of the narrow band deployments currently upgradeable will need to be better met by the switched wireline infrastructures based on FTTC, ADSL, and VDSL technologies. Because the service areas are all different in terms of the length and quality of the telephone wire between the central telephone office and the residences, the number and type of homes and the distance from the central telephone office, there is no configuration or technology unique technology to be optimized for all applications and all deployment scenarios. It may also be the case that a central office may be located in an area which has urban and suburban characteristics (for example, some old departmental buildings, as well as new departmental developments), so a mix of FTTC technologies is required. , ADSL, and VDSL. The present solutions to the problem of signal supply in twisted wire pairs includes placing additional equipment in the central telephone office to receive and transmit high-speed data signals, and to convert the high-speed data signals of a signal. base, packaged, to a base signal, circuit, compatible with the Public Switched Telecommunications Network (PSTN). Sometimes, due to the distance between the residence of the subscriber and the head office, the equipment for the transmission and reception of high speed data signals in twisted wire pairs must be placed remotely from the central office and close to the subscriber's residence. This can be done by placing a device called Canal Bank near an existing Remote Terminal (RT) which provides analog telephony service. For transmission in the twisted wire pair, the analog telephone signal must be combined with the high speed data signal using a diplexer, in a residence, a diplexer is used to separate the signals again. In the presently used configuration, numerous problems are encountered including the need to convert high-speed data signals based on packets or cells to signals based on frames compatible with the public switched telephone network; the need to deploy supports or racks for additional equipment in both locations or sites, the remote and the central office to support high-speed data applications; the need to have separate computers to program telephony equipment and high-speed data equipment, and the need for external diplexers in the central office or remote terminal and the subscriber's residence to combine analog telephone signals with signals of high-speed data and separate them again, In addition, noise from the analog telephone signal may be present which interferes with the high-speed digital data signal. There is a need for a system that can combine high-speed data signals with digital telephone signals and generate a combined high-speed data and analog telephony signal which can be transmitted on a twisted pair of wire from a termination that can be located in the central office or remotely. For these reasons it is necessary to have a flexible terminate that can be used either in the central office or in the field, and that can generate the analog telephone signal and the high speed data signal in a single plug-in card. In addition, means are required to transport the traditional voice signals combined with the high-speed data signals in the access network.
Brief Description of the Invention In a first embodiment, high-speed telephony and data signals are received in a broadband digital terminal, and are combined in a cell-based signal which is transported to an access multiplexer. In the access multiplexer an analog telephone signal is generated in a first line card, and a high speed data signal is generated in a second line card. The analog telephony service is provided by means of a first twisted pair wire down cable, while the high speed data service is provided by means of a second twisted wire down cable. In an alternative embodiment, high-speed data and telephony signals are received in a broadband digital terminal, and combined in a cell-based signal which is transported to two separate terminals. The analog telephony service is provided to a subscriber's location or site by means of a twisted pair of wire from the first terminal, while the high-speed data services are provided to a second subscriber's location from the second terminal. Another feature of the present invention is the ability to provide high speed telephony and data services from a single line card located in an access multiplexer. Telephony and high-speed data signals are generated on the line card and combined using a diplexer. In the residence, a reception diplexer is used to separate the high-speed data signals and the analogue telephony signals.
In an alternative mode for the simultaneous provision of telephony and high-speed data services, a high-speed data signal is generated in an access multiplexer which contains a digital representation of the analog telephony signal. The high-speed data signal is sent from the access multiplexer to the residence, where a reception device generates an analog telephony signal and transmits the high-speed data signal to the appropriate terminal equipment. The combined transport of digital telephony signals and high-speed data signals in a cell-based Asynchronous Transport Mode (ATM) format allows flexible deployment of access equipment and the ability to simultaneously support traditional telephone services as well as advanced digital data services. The access equipment can be configured so that the analogue telephone service can be provided to the subscribers in a geographical location while simultaneously providing data services to the subscribers in a different site or geographical location, all from a service platform that It has interfaces - data and telephony. The ability to provide a mixture of services by means of different types and lengths of twisted wire pair down conductors allows the provision of flexible services. The combination of voice, data and video services for transmission by a variety of down cable means while maintaining the capability to carry traditional analog telephony signals has not been previously realized. In the accompanying drawings, which are incorporated and form part of the detailed specification or description, the embodiments of the present invention are illustrated, and together with the description serve to explain the principles of the invention. In the drawings: Figure 1 illustrates an access system from the fiber to the edge of the sidewalk with coaxial downpipes; Figure 2 illustrates an access system from the fiber to the edge of the sidewalk with a gate used in the residence for the distribution of telephony, data and video signals; Figure 3 illustrates a system for access from the fiber to the edge of the sidewalk with a down cable of twisted wire pair to a residence having a gate; Figure 4 illustrates the prior art that has been used for the provision of analog telephony signals in conjunction with high speed data signals; Figure 5 illustrates a system in which the Universal Service Access Multiplexer is used with Digital Subscriber Loop transmission techniques Asymmetric (ADSL) to provide high-speed data and analog telephony services; Figure 6 illustrates a system in which the Universal Service Access Multiplexer is used with very high speed Digital Subscriber Loop transmission techniques to provide high-speed data and analog telephony services; Figure 7 illustrates the use of a twisted wire pair for the distribution of high speed data services in the residence; Figure 8 illustrates the use of a coaxial wiring and an interface device for the distribution of high speed data services in the residence; Figure 9 illustrates the mechanical configuration of the USAM; Figure 10 illustrates the architecture of the USAM; Figure HA illustrates the USAM line card for xDSL applications that use network power; Figure 11B illustrates the ANID for xDSL applications that use the power of the network; Figure 12A illustrates the USAM line card for xDSL applications using local power; Figure 13A illustrates the ATM cell format downstream for the cells from the BDT to the NBU or USAM; Figure 13B illustrates the downstream ATM cell format for cells from the BDT to the NBU or the USAM; Figure 14A illustrates the Time Division multiplexing (TDM) cell format for transmissions from the BDT to the NBU or the USAM; Figure 14B illustrates the individual DSO frame of the TDM segment; Figure 14C illustrates the TDM segment VT1.5; and Figure 15 illustrates the basic TDM block DSO framework.
Detailed Description of the Preferred Modality In describing a preferred embodiment of the invention illustrated in the drawings, a specific technology will be used for clarity purposes. However, it is not intended to limit the invention to the specific terms thus selected, and it should be understood that each specific term includes all the technical equivalents that it operates from. a similar way to perform a similar purpose. With reference to the drawings, in general, the apparatus of the present invention is described, and in particular in figures 1 to 15. Figure 1 illustrates a network from La Fibra to the Sidewalk (FTTC) in which several devices are connected in the residence 190 to the Public Switched Telecommunications Network (PSTN) 100 or the Asynchronous Transfer Mode (ATM) network 110. Devices in residence 190 may include telephone 194, television (TV) 199 with a set-top television set 198, computer with Network Interface Card (NIC) 191, and Interface Device Premises (PID) 196 connected to a telephone 194. The FTTC network illustrated in Figure 1 works by means of its connection to a Broadband Digital Terminal 130 with the PSTN 100 and the ATM network 110. The PSTN-BDT interface 103 it is specified by standard bodies, and in the United States it is specified by Bellcore specifications TR-TSY-000008, TR-N T-000057 or GR-N T-000303. The BDT 130 can also receive signals from special services that come from non-switched or private public networks. The physical interface with the PSTN is twisted wire pairs that carry DS-1 signals, or optical fibers that carry optical OC-3 signals. The interface with the ATM-BDT network interface can be realized using an OC-3 or 0C-12c, optical interfaces that carry ATM cells. In a preferred embodiment, the BDT 100 has two broadband ports OC-12c, which receive signals that carry ATM cells, and an interactive OC-12c page which receives and transmits signals.
An Element Management System (EMS) 150 is connected to the BDT 100 and is part of the Element Management (EML) layer which is used to provide services and equipment in the FTTC network, at the central office where it is located the BDT 100, in the field, or in the residences. The EMS 150 is based on a programming system (software) and can be run on a personal computer in which case it supports a BDT 100 and the associated access network equipment connected to it., or it can be run on a workstation to support multiple BDTs and access networks. The Broadband Network Units (BNUs) 140 are located in the server area and are connected to the BDT 130 via optical fiber 160. The digital signals in a format which is similar to the Synchronous Digital Hierarchy (SDH) format are transmitted to and from each of the BNU 140 by optical fiber 160at at a speed of 155 Mb / s. In a preferred embodiment, the optical fiber 160 is a single mode fiber and a dual wavelength transmission scheme is used for communication between the BNU 140 and the BDT 130. In an alternative mode, a wavelength scheme is used. unique in which components with power or low reflection capacity are used to allow reception and transmission in a fiber. A Telephone Interface Unit (TIU) 145 on the BNU 140 generates a simple old telephony signal (POTs) which is transported to the residence 190 via a cable 180 downwind of twisted wire pair. In the residence 190 a Network Interface Device (NID) 183 is provided for high voltage protection and serves as the interface and the demarcation or demarcation point between the twisted wire pair downcomer cable 180 and wire pairs 181 twisted, interior. In a preferred embodiment the TIU 145 generates POT signals for six residences 190, each having a separate twisted wire pair down conductor 180 connected to the BNU 140. As shown in Fig. 1, a Wide Band Interface Unit (BIU) ) 150 is located on the BNU 140 and generates broad band signals which contain voice, data and video information. The BIU 150 modulates the data in an RF carrier and transmits the data via a coaxial down cable 170 to a splitter 177, and through the internal coaxial wiring 171 towards the devices in the residence 190.
In a preferred mode 64 BNUs 140 are served by a BDT 130. Each BNU serves 8 residences 190. In an alternative embodiment, each BNU 140 serves 16 residences 190. As shown in Figure 1, each device connected to the indoor coaxial wiring 171 requires a 1 interface sub-system which provides for the conversion of the signal from the format into the indoor coaxial wiring 171 for the interface service required by the terminal equipment, which may be a telephone 194, a television 199, a computer, or other device. In a preferred embodiment, the PID 194 extracts the time division multiplexer information carried in the indoor coaxial wiring 171 and generates a telephone signal compatible with the telephone 194. Similarly, the television converter set 198 converts the video signals digital to analog signals compatible with the TV 199. The NIC card generates a signal compatible with the computer. In the system illustrated in figure 1, a Network Interface Device (NID) 183 is located on the side of residence 190 what is known in the industry as the network demarcation point. For the supply of telephone services, the NID 183 is a passive device whose main functions are light protection and the ability to repair the network allowing the connection of a telephone 194 with the twisted wire pair down cable 180 to determine if there are problems Wiring in the interior twisted wire pairs 181. Figure 2 illustrates the use of a gate 200 to generate signals compatible with the devices in the home, which are connected to the gate 200 via the inner twisted wire pairs 181 or the wiring or wiring of inner coaxial cable 210 and a splitter 177. The connection to the splitter is made using a gate-divider connection 210, which in a preferred embodiment is coaxial cable. A direct connection to a television can be made using a gate-television connection 205, which in a preferred embodiment is with a four conductor cable carrying an S-video signal. The use of a composite 200 can reduce the number of devices required in residence 190 for the interface between the access network and terminal equipment including television 199, telephone 194, and computer 193.
Figure 3 illustrates an FTTC network which has the twisted wire pairs down conductors 180 instead of the coaxial down conductors 170. This mode is preferable when it is expensive or cost prohibitive to install coaxial down conductors from the BNUs 140 to residences 190. As shown in Figure 3, a Universal Service Access Multiplexer (USAM) 340 is located in the service or server area, and is connected to BDT 130 via optical fiber 160. An xDSL modem 350 is provided for the transmission of high-speed digital data by the twisted pair wire down conductor 180 to and from the residence 190. When used herein, the term xDSL refers to any of the transmission, looping techniques of the subscriber, digital, pair of twisted wires, which include; High Speed Digital Subscriber Loop, Asymmetric Digital Subscriber Loop, Very High Rate Digital Subscriber Loop, Customizable Rate Digital Subscriber Loop or other similar twisted wire pair transmission techniques. Such transmission techniques are known to those skilled in the art. The xDSL 350 modem contains the circuitry and the software to generate a signal which can be transmitted on the down cable, twisted wire pair 180, and can receive high speed digital signals transmitted from the gate 200 or other devices connected to the subscriber's network. Telephone, analogue, traditional signals are combined with digital signals for transmission to the residence 190 and a NID / filter 360 is used to separate the analogue telephone signal from the digital signals. Most xDSL transmission techniques leave the analog voice portion of the spectrum unaltered (from about 400 Hz to 4, 000 Hz). The analog telephone signal, once separated from any digital data signal, in the spectrum, is sent to the telephone 194 in the twisted, inner wire pairs 181. The digital signals that are separated in the NID / filter 360 are sent from a separate port on the NID / filter 360 to the gate 200. The composite serves as the interface to the devices at the residence 190 which include the television 199, the computer 193, and the additional telephone 194.
The central office configuration illustrated in Figure 3 includes a Central Office Terminal of the Universal Service Access Multiplexer (USAM COT) 324 connected to the BDT 130 via a USAM COT-BDT 325 connection, which in a preferred mode it is an STS3c signal transmitted on a twisted wire pair. The COT 303 PSTN-USAM interface is one of the interfaces specified by Bellcore that includes the TR-TSY-000008, TR-NWT-000057, or TR-NWT-000303. The USAM COT 324 has the same mechanical configuration as the USAM in terms of power supply and common control cards, but has line cards that support twisted wire pair interfaces, with the PSTN (including the DS-1 interfaces) and cards supporting the STS3c transmission in a twisted wire pair for the USAM COT-BDT 325 connection. In addition, a Channel Bank (CB) 322 is used in the central office to connect the special networks 310, comprising signals from public networks or special private, to the access system via the special networks interface-CB 313. In a preferred embodiment, the CB-USAM COT connection, 320, are DS1 signals on twisted wire pairs.
When the term "subscriber's network" is used, it generally refers to the connection between the BNU 240 and the devices or gate 200 in the residence 190 or the connection between the USAM 340 and the devices or the gate in the residence 190. The network of the The subscriber may comprise coaxial cable and a splitter, twisted wire pairs, or any combination thereof. Although Figures 2 and 3 illustrate the gate 200 located inside the room of the residence 190, the gate can be located in the basement, in the garage, in the wiring room, on an external wall of the residence, in the attic, or in any of the living spaces. for locations or external locations the gate 200 requires a hardened or resistant box or casing of and components that work in a high rank over those that work for a gate located inside the residence 190. The techniques to develop boxes or wrappings hard or resistant as well as the selection of temperature tolerant components are known to those skilled in the art. Figure 4 illustrates system architectures that have been used to provide high-speed data services in existing twisted wire pair networks. In these systems a Guest Digital Terminal (HDT) is connected to the PSTN 100 via pairs of twisted wire 423 or optical fiber 160. A Remote Terminal 430 (TR) is connected to the HDT 422 via one or more optical fibers 160. A line card, POTs, analog, 432, is located on RT 432 and can provide analog telephony services at distances up to approximately 12,000 ft. As shown in Figure 4, a POTs line card, 432, can be located directly on the HDT 422 to provide analog telephony services to residences that are within 12,000 ft. from the central telephone office or remote structure. The architecture illustrated in Figure 4 is based on the provision of telephone services to subscribers. The Operational and Support Systems (OSS) 410 connected to the HDT 422 support basic and advanced telephony services, but do not support advanced high-speed data services. For additional high-speed data services, the traditional approach has been using extended equipment to provide those services. Figure 4 illustrates the use of ADSL Banks Banks (ADSL CBs) 414, which are added to the network to provide high-speed data services. An ADSL CB 414 with an xDSL 350 modem can be added to the central office, and it gives route to the data signals in a Unit to work with the Interconnected Networks "Internet" (Inter-Networking (INU)) 400, which takes the data signals which typically are in the form of Internet Protocol (IP) packets, and adapt them for transmission on the PSTN 100 in a PSTN compatible format such as the relay or frame relay, or "the data from multiple megabits, switched; or the data service 56 switched. Because the OSS 410 does not support high-speed data services, a separate computer 193 is used to configure the INU 400 and thus provide data services. Referring to the upper portion of Figure 4, in the ADSL CB 414 a fiber optic transceiver 351 can be used to transmit high speed data signals via an optical fiber 160 to a CB 414 ADSL located in the local, remote loop from the central office. The ADSL CB 414 in the local loop can be located close to the RT 430, and a lateral 4-line diplex filter is used to combine the analog telephone signal with the high-speed data signal. The combined signals are transmitted via the twisted wire pair down cable 180 to a side, diplex, subscriber filter 420, which separates the high speed data signal from the analog telephony signal. The lower portion of Figure 4 illustrates how high-speed data can be transmitted from an ADSL CB in the central telephone office or the remote office to a subscriber. The high-speed data signals generated in the xDSL modem 350 are transmitted by the twisted wire pair 423 to a lateral diplex filter of line 418, which combines the high-speed data signal with the analog telephony signal generated in the analog POTs line card 432. The combined signals are transmitted by the twisted wire pair down conductor 180, and are received in the residence 190, where a side, diplex, filter of the subscriber, 420, separates the data signal from high speed analog telephone signal. The high-speed data signals are transmitted by the interior twisted wire pairs 181 to the devices in the residence. While the analog telephony signal is transmitted to telephone 194. Figure 5 illustrates one embodiment of the present invention for providing both high-speed voice and data services from a single-access, network, platform. In this architecture, a BDT 130 is connected to an ATM network 110 via the optical fibers 160 using interfaces 113, ATM-BDT network; and simultaneously to the PSTN 100 via the optical fibers 160 and the twisted wire pairs 423 using the interfaces 102, PSTN-BDT; previously described. ATM / TDM description. An EMS 150 consisting of a computer 193 and the EML specialized software program, allows the supply of traditional telephony as well as new services. The OSS 410 supports the provision of traditional telephony services, and as the OSS 410 is updated or updated, the EMS 150 is allowed for new services to be supplied from the OSS 410 using the provision through the flow. On the side of the central office of the network in Figure 5, a USAM COT can be used in the Central Office (USAM COT-CO) 530 for the interface of telephony signals from TR-TSY-000008, TR -N T-000057 or GR-N T-000303, interfaces provided by a public or private network with the BDT 130. This is done by receiving the signals in formats TR-008, TR-057 and GR-303 transmitted in the twisted wire pairs 423 in the USAM-COT-CO 530, which prepares and multiplexes these signals as required, and transmits them to the BDT 130 via the twisted wire pairs 423 using an STS3 format. In this way the BDT can be used to handle the signals from additional networks. Additionally, signals from other telecommunications service networks, typically referred to as "special" can be routed to the BDT 130 through the use of a Canal 322 Bank which receives the "specials" through the wire pairs twisted 423, which gives signals preparation and multiplexing, and transmits them to the USAM COT-CO through the twisted wire pairs 423. The USAM COT-CO can perform additional preparation and multiplexing as required, and transmits the signals to the BDT 130. Reference to the upper portion of the figure , an optical signal in an SDH format at 155 Mb / s can be transmitted via an optical fiber 160 to the USAM ADSL in a Remote Terminal (USAM ADSL-RT) 520 configuration. A line card, telephony / xDSL, 353, contained within the USAM ADSL-RT 520 is used to generate both an xDSL signal as well as an analog telephony signal. In the case of the system shown in Figure 5, the line card, Telephony / XDSL, 353, generates an ADSL signal in addition to the analog telephony signal. The architecture for the line card, telephony / xDSL, 353, is described later in this specification and illustrated in Figures 11A-12B. In the case of the USAM ADSL-RT 520, telephony and high-speed data signals are transmitted via the twisted wire pair down conductor 180 to a side, diplex, subscriber filter, 420, which separates the signal from High speed data of the analog telephony signal. The high-speed data signals through the inner twisted wire pairs 181 to the devices in the residence, while the analog telephony signal is transmitted to the telephone 194. The lower portion of the figure 5 illustrates the use of a USAM ADSL in a ral Office configuration (USAM ADSL-CO) 510. In this example, the high-speed data and digitized telephony signals are transmitted from the BDT 130 to the USAM ADSL-CO 510 through the twisted wire pairs 423. The USAM ADSL-CO contains a line card, telephony / xDSL, 353, which generates an xDSL signal as well as an analog telephony signal. These signals are transmitted to the residence 190, where a diplex filter on the subscriber side 420 separates the high-speed data signal from the analog telephony signal. The high-speed data signals are transmitted by the inner twisted wire pairs 181 to the devices in the residence, while the analogue telephony signal is transmitted to the telephone 194. Figure 6 illustrates an alternative mode, in which a USAM VDSL is used to provide both the data and telephony signals. In this configuration, a line card, telephony / xDSL, 353, is used to generate the high-speed data and telephony signals, but the high-speed data signals have a Very High Speed Digital Subscriber Loop format ( VDSL) which is opposed to an Asymmetric Digital Subscriber Loop (ADSL) format. The main distinction or difference between ADSL and VDSL formats is that VDSL transmission supports data rates up to - - approximately 26 Mb / s downstream to residence 190, and 5 Mb / s upstream from residence 190 at distances not exceeding 3,000 ft., while the ADSL supports data rates up to 9 Mb / s downstream, and up to 640 kb / s upstream at distances up to 9,000 ft. Using ADSL transmission techniques it is possible to cover distances up to 12,000 ft. with some reduction in the speed of the data. In the upper part of figure 6, there is illustrated a system in which the signals are transmitted from a line card, telephony / xDSL, 353, in the USAM 620 by a twisted pair cable wire 180 towards the diplex filter side of the subscriber 420 that separates the high-speed data signals from the telephony signals. In the illustrated embodiment, the analog telephony signals are transmitted from the side diplex filter of the subscriber 420 via the inner twisted wire pairs 181 to the telephone 194. The data signals are transmitted via the internal coaxial wiring 171 to the devices in the residence 190. The lower portion of figure 6 illustrates an alternative mode in which digital signals are transmitted from a VDSL modem 354 in the USAM VDSL 620 by a twisted wire pair down conductor 180 and are received in the Active Network Interface Device (ANID) 610 that generates an analog telephone signal for transmission through pairs of inner twisted wire 181 to a telephone 194. The VDSL 354 modem and the ANID 610 architecture which can provide this functionality are described with more detail in figures HA and 11B along with the corresponding text. Figure 7 illustrates a modality in which signals are received at residence 190 by a side diplex filter of subscriber 420 which separates the analog telephony signal from the digital xDSL signal using filtering techniques well known to those skilled in the art. . From the lateral diplex filter of the subscriber 420 the digital analog signals are sent through a network, at home, point-by-multipoint, based on twisted, inner wire pairs, 181, and received by means of 194 telephones. In this mode, the high-speed, digital data signal is given route through a network, at home, point-by-multipoint, based on interior twisted wire pairs 181 to a variety of devices including a residential telephone interface unit 710, a Local Area Network unit (LAN) 720, a set-top set for television 198, and a Network Interface Card (NIC) 750. The residential telephone interface unit 710 serves to separate the data with Time Division Multiplexing (TDM). which contain telephone signals from the digital data stream through the twisted wire pair 181, and generates an analog telephony signal compatible with the telephone 194. The set-top unit 198 extracts the cells or ATM cells containing data esp of the converter and video set and displays such information on the television 199. A remote keyboard 730 can be used with the converter set 198 to provide a computer-like functionality. The LAN 720 unit extracts the ATM cells or cells which have the address of the LAN unit 720 and allow the computer 193 connected to the LAN 720 unit to be connected to the Internet or other internal networks. Similarly, the NIC 750 card has an interface with the computer 193 for external networks. Figure 8 illustrates a mode in which an ANID 610 receives the high-speed digital data - - from a twisted wire pair down conductor 180, and generates a signal compatible with the coaxial cable which is transmitted by the wiring of the cable. inner coaxial cable 171 to splitter 177. Divider 177 is one of the type currently commonly used in households for the distribution of cable television signals. The signals are routed from the splitter 177 via the indoor coaxial cable wiring 171 to a variety of devices including a Premises Interface Device (PID) 196, a Local Area Network (LAN) 720 unit, a set-top set for television 198, and a Network Interface Card (NIC) 750. Figure 9 illustrates the mechanical configuration of the Universal Service Access Multiplexer (USAM) 340. The USAM 340 can be mounted on supports using the brackets 910, and has the USAM redundant power supply plugged in 930. An air ramp 900 is used to provide cooling. There are two common control cards, the Common Control A, 932, and the common control B, 934, which interface with the BDT 130 via the optical fiber 160. In a preferred embodiment, the bidirectional optical signals that are sent by a fiber optics 160 are in a format similar to SDH, at a speed of 155 Mb / s. The line-card plug-in units 920, USAM, are used to provide telecommunications services to subscribers. These line cards have interfaces with twisted wire torque down cables 180. In addition to the line cards that interface with twisted wire pair downpipes 180 it is possible to have 920, plug-in, line card units, USAM, having fiber optic interfaces and such support optical transmission by fiber optic cable 160. There are four general categories of 920 line card plug-in units, which include narrow-band line cards, band-line cards wide, VDSL line cards, and ADSL line cards. Line cards, narrowband, support the telephony or legacy services that include POTs, currency telephone services, IT services, ISDN services, and all existing special telecommunications services. Broadband line cards support the Universal Network Interfaces of Transfer Mode - - Asynchronous (UNIs). These broadband cards based on UNIs use an appropriate physical medium which can be a pair of twisted wire, coaxial cable, fiber optic, or wireless connections. Line cards, VDSL, are used to support residential broadband services using existing twisted wire pair down conductors 180 using VDSL transmission techniques, and can support the transmission of traditional telephone signals either through the generation of a signal POTs in the VDSL line card and transmission with the digital VDSL signal in different portions of the spectrum, or by transmitting the telephone data in a digital form within the VDSL signal, with the generation of the analog POTs signal that is presented in residence 190. In yet another embodiment, analog telephony signals can be combined with the VDSL signal in a diplexer external to the line card. In a preferred embodiment, the VDSL transmission technique used is based on the Quadrature Amplitude Modulation (QAM) transmission techniques in which the data is sent at multiple levels in the I and Q channels, with the numbers of levels that depend on - - the specific characteristics of the twisted wire pair downpipe cable 180 which is used. For downspouts of poor or lower quality, or where there is a large amount of radio frequency revenue, a single-level phase inversion scheme (on both channels, I and Q) is used resulting in a Quadrature Phase Change Manipulation (QPSK) transmission, which can be considered equivalent to 4-QAM. For better quality of the transmission channels in high quality twisted wire pair downpipes, the 16-QAM, or 64-QAM transmissions can be used. ADSL line cards are used to support residential broadband services using ADSL transmission techniques. ADSL transmission techniques are based on the use of Discrete Multiple Tone (DTM) transmission, or QAM techniques, which include the Bearerless Amplitude Modulation technique, commonly referred to as CAP, which is a method for generating QAM signals. Analogue telephony signals can be transmitted through the ADSL line cards in a similar way to the line cards that - - includes the generation of the POTs signal in the ADSL line card and the combination of this with the ADSL signal digital, which generates the signal POTs externally and combines this with the ADSL signal, or generates the signal POTs in the residence 190. In a preferred mode the USAM 340 supports 16 USAM line cards plugged in 930. When used for VDSL and ADSL applications , there are 2 ADSL or VDSL circuits per line card plugged in 930, which results in 32 VDSL or ADSL circuits per USAM per ledge shelf. When fully configured with the VDSL cards the USAM 340 becomes a USAM ADSL-RT 520 or USAM ADSL-CO 510 as illustrated in Figure 5. When fully configured with the ADSL cards the USAM 340 becomes a USAM VDSL 620 as illustrated in figure 6. In an alternative mode, there are four circuits per ADSL or VDSL line card. When USAM 340 is configured for POT services, there are 6 circuits per line card in one mode, resulting in 96 circuits per USAM per shelf or shelf. In another modality, there are 12 circuits per POTs line card, resulting in 192 POTs per shelf or shelf. The USAM illustrated in the figure - 9 represents a single shelf or shelf, but it is clearly possible to have multiple shelves or shelves for greater capacity. In the USAM 340 equipment it is also possible to mix the types of line cards to simultaneously provide ADSL, VDSL, and POTs services, from the same platform. By having a transport based on cells or cells for high-speed voice and data it is possible to support a variety of line cards simultaneously and provide traditional telephony services together with high-speed data services. Figure 10 illustrates the architecture of the USAM 340, and shows how the Common Control A 932, and the Common Control B 934, are connected via the optical fibers 160 to the optical connectors of the front access panel 936. These connectors are connected to the optical fibers 160 which instead are connected to the BDT 130. In a preferred mode, the signals are sent from the Common Control A 932 to the plugged USAM line card 920 via a bus or common channel downstream to A 954, and from the Common Control B 934 to the USAM line card plugged in 920 via a common bus or downstream channel B 955. The buses or common channels downstream A and B 954 and 955 respectively are buses or point-per-multipoint channels, and everything useful is received in all plugged line cards 920. The individual upstream buses 952 are used to trat the information from the plugged USAM line card 920 to the Common Control A 932 and the Common Control B 934. An AC Panel connector Frontal (FAP) 938 allows the connection from the front of the USAM to an internal front access panel (FAP) 940 bus or channel that can be used for diagnostics. A Machined Loop Test (MLT) 950 bus is used to allow the head office team to simulate a direct connection with a particular twisted wire pair down conductor 180, despite the fact that there is currently an optical trassion system between the central office and the twisted wire pair down cable 180. The MLT 950 bus in conjunction with the circuitry in the POTs line card allows the central office team to determine the resistance and operation of other key tests on a down conductor of 180 specific torque twisted wire.
- The Tip and Ring (TR) 956 connectors serve as the connection point between the plugged USAM line card 920 and twisted wire pair down conductors 180. The bus connector TR-line card 960, provides the connection capacity internal between the USAM 920 connected line card and the TR 956 connectors. The plugged USAM line card 920 using optical means for transmission and reception is connected to a front access optical connector 936 via the optical fiber 960, or in a alternative mode the front access optical connector 936 is mounted directly to the USAM 920 plug-in line card. Figures HA and 11B illustrate an embodiment in which the VDSL signals are sent to the residence 190 from a VDSL line card, together with an energy signal. The signal is received by an energized unit from the USAM which is able to derive data for a subsequent transmission in the residence 190 by the pairs of internal twisted wire 181, or the internal coaxial wiring 171, as well as the generation of a signal of analog telephony.
- - In Figure HA a lateral xDSL data modem and digital telephony line modem 600 is illustrated in the USAM 340 and consists of a VDSL System Specific Application Integrated Circuit, (ASIC), 654, which is connected to a bus connector from the USAM connector board, which is connected to a common downstream bus 954, to the downstream common B bus 955, and the upstream individual buses 852. A side-line 658 V DSL modem is connected to the VDSL system ASIC 654 and generates a signal compatible with the twisted wire pair for transmission to the residence via the twisted wire pair down conductor 180. A 662 controller, which can be any appropriate microcontroller, is used to configure and program the ASIC of the VDSL system 654. Energy is added via a 650 power connector, and a current limiting circuit 656 prevents electrical overloads, and a line protection power insertion module 664 allows the combination of the VDSL signal and the voltage of the energy, which in a preferred mode is -90 V, and in an alternative mode is -130 V. In the twisted wire pair 180 that the modem allows to be lateral, line, xDSL, data, and combined digital telephony 660 a power interface 666 is formed with the twisted side wire pair of line. The subscriber side is illustrated in FIG. 11B, where a 667 energy interface is formed with the twisted wire pair on the subscriber side, and is connected to a side modem of the combined data and digital telephony xDSL subscriber 661 via the wire torque down conductor twisted 180. Signals with power are received from the combined xDSL data line and digital telephony side modem 660 via the twisted wire pair down conductor 180. In figure 11B the line protection 670 serves to separate the power and protect the VDSL modem from the subscriber side 674. The subscriber-side VDSL modem 674 separates the TDM signals containing telephony data and routes the data to a POTs 676 circuit. The POTs 676 circuit generates an analog telephony signal which is routed to a twisted wire pair connector assembly 682, which contains a first-line derived POTs connector 690, which in a preferred modali dad is an RJ-11 (jack) jack.
- An optional circuit may be present POTs / ISDN 678 and support an additional POTs or ISDN line which can be connected via a second ISDN connector or Line POTs 692 which is present in the twisted wire pair connector assembly 682. In the embodiment shown in Figure 11B, a coaxial modem 680 also receives and transmits digital data to the VDSL modem on the subscriber side 674. The modem Coaxial 680 can take information from the VDSL 674 modem on the subscriber's side and generate a coaxial signal, which in a preferred modality is the type A signal of the Council, International, Visual and Digital Audio profile. The coaxial signal generated by the coaxial modem 680 is given a route to a coaxial modem connector 694, and subsequently to a combiner 696. The combiner 696 allows the combination of the coaxial modem signal 680 with the television signals transmitted outside the coaxial modem. air from a cable television system or antenna connected when connecting for off-air signals 695. The indoor wiring network interface has both analog POT signals and digital data signals.
- - Although the embodiment illustrated in Figures HA and 11B, the subscriber-side modem and the line-side modem are shown as VDSL modems, ADSL modems or other types of modems can be used to practice the invention. The combined digital data and telephone telephony xDSL subscriber modem 661 may also be located in the gate 200, and as illustrated in FIG. 3, a variety of devices may be connected directly to the gate using a pair of twisted wire, coaxial cable, or other types of wiring. Figures 12A and 12B illustrate an alternative mode for the transmission of telephony signals together with xDSL data signals. In this mode, the analog POTs signal is generated in a POTs circuit 676 which is located in a modem on the side of the analog telephony and data line xDSL 760 which is located in the USAM 340. Referring to FIG. 12A, the POTs circuit 676 generates an analog telephony signal which is combined with a digital data signal from the VDSL 658 modem in the line protection filter 664 which serves as a duplex filter on the side of line 418. The combined signal - - digital data and the combined analog telephone signal are present in the wire twisted pair xDSL on the side of the line with the POTs 766 interface. On the subscriber side, a data and telephony xDSL subscriber side modem Combined analog 761 is used to receive the POTs and data signals. In a preferred embodiment, the energy from residence 190 is used via an AC outlet (CA) and power supply 668. An optional 777 battery pack can be used to provide power to the combined xDSL subscriber side data and analog telephony 761 modem in case AC power fails in residence 190 The power from the AC plug 779 or the optional 777 battery pack is transmitted to the 668 power supply using two pairs of twisted wire inside 181 power cables. The combined analog data and telephony xDSL subscriber-side modem works for the data in accordance with the description for the data portion of the combined data and digital telephony xDSL line-side modem 660. The line protection filter POTs 770 it serves to separate the telephony - - analog signal from the digital data signal and serves to protect the VDSL 674 modem and telephone 194 from excessive currents. In the traditional approach to combining analog telephony signals with xDSL data signals (as shown in Figure 4) the analog POTs signal is externally combined with the xDSL signal in the line side diplex filter 418. The main problems with this approach is that there are two pairs of twisted wire coming from the cross connection box (the location of the connection for the twisted wire pair down cables 180 coming from the telephone central office) two sets of light protection, and unknown characteristics in terms of ring tripping and other impulse noise in the line POTS which can be harmful to the xDSL signal. By having the integrated POTs 676 circuit on the combined xDSL data line and analog telephony side modem it is possible to control the interference between the data signals generated by the line 658 VDSL modem and the analog POTs signal. This mode minimizes the amount of light protection required, as well as ensures that the impulse noise generated by the POTs circuit is characterized and controllable. In addition, a feeder pair from the central office is released for reuse. The mode shown in Figures 12A and 12B shows the subscriber-side modem and the line-side modem as VDSL modems, ADSL modems and other modems can be used to carry out the invention. The xDSL subscriber side modem of combined analog data and telephony 761 can also be located on gate 200, and as illustrated in FIG. 3, a variety of devices can be directly connected to the gate using a pair of twisted wire, coaxial cable, or other types of cabling. In the transmission signals to and from the BDT 130 to the BNU 140 via optical fiber 160, or to and from the BDT 130 to the USAM 340, a frame structure based on the Synchronous Digital Hierarchy (SDH) standard is used in which the most significant bit (bit 1) is sent first and the least significant bit (bit 8) is sent to the last bit. A system-specific data link channel is sent within the SDH box. The SDH box itself has 2430 bits in a 125μs frame, divided into aerial areas, a useful area of cell or cell 41 and a standing 3 bit which is not used. Downstream ATM data (from BDT 130 to BNU 140 or BDT 130 to USAM 340) is carried in a cell or cell format illustrated in Figure 13A, in which 4 specific bits of the system form a transverse channel or downstream header 1004 which is added to a 57-bit ATM cell or cell 1002. The first two bits in the header, 1006 and 1008, are left unused, while the following two bits 1010 and 1012 contain two BIUs 150 that give route to the terminals or labels, the BIU 150 gives route to the bit of high terminals 1010, and to the BIU that gives route to the bit of low terminals 1012. Also they are present a Indicator of Trajectory Virtual ATM / Indicator of Virtual Channel (VPI / VCI) and a header field of cells or cells 1014. A Header Error Control Field (HEC) 1016 contains a correction code word covering the header 1004 and the cell header field or VPI cell / VCI 1014. Current ATM data arrib a are carried in a cell or cell format illustrated in Fig. 13B, in which 4 specific bits of the system form an upstream header 1005, which contains two unused bits 1026 and 1028, a bit ID of ODU source 1030, and a TCAM ID bit 1032. In addition, a cell header field or VPI / VCI cell 1014 is present, so that it is a HEC field 1016. A 53bit ATM cell or cell 1002 contains the ATM data. The Time Division Multiplex data is carried in both directions by optical fiber 160 (from BDT 130 to BNU 140 or from BDT 130 to USAM 340) as well as in the BDT-USAM union of twisted wire pair 226 in a cell or 57-bit cell format. In both directions, the ATM cell or cell consists of two 28-bit segments and one reserved bit of an ATM cell or cell, as illustrated in FIG. 14A, in which an ATM cell or cell is comprised of a reserved bit of data. ATM cell or cell 1102, a first TDM segment 1104, and a second TDM segment 1106. As illustrated in FIG. 14B, the individual DSOs within the TDM segments are framed within three TDM blocks of nine bits each. a reserved segment bit 1108 precedes a first TDM block 1110, a second TDM block 1112, and a third TDM block 1114.
An asynchronous virtual tributary (VT 1.5) can be transported in a TDM segment as illustrated in Figure 14C, by sending a reserved VT 1.5 bit 1116 followed by a 27-bit VT1.5 field 1118. The particular frame of the DSOs in a TDM block are illustrated in Figure 15, where eight DSO channels are transported in the bits 2-9 (1204, 1206, 1208, 1210, 1212, 1214, 1216, and 1218 respectively). The signal information for each DSO is transported in a signaling bit. The signaling bit is the first bit in the nine-bit sequence which forms a frame, and each of the eight frames carries the signaling information for a DSO channel. As shown in Figure 15, the signaling bit of channel 1, 1214, appears as the first bit of Table 1, the signaling bit of channel 2, 1216, as bit 1 of Table 2. The signaling bits of the channel 3-8 (1218, 1220, 1222, 1224, 1226, 1222, respectively) appear in the first bit of frames 3-8 respectively. An advantage of transmitting voice and data information in an ATM format is that the cells or cells are routed to their destination without considering the type of data, and it is not necessary to have discrimination between the TDM voice signals and the signals. high speed data. The destination can be a BIU 150, a plugged USAM line card 920, the PID 194, the ANID 610, the converter set 198, the computer with the NIC card 191, the telephone interface unit 710, the LAN unit 720, or gate 200. Framing of the cells or cells occurs on both sides of the network, where the cells or cells are formed from the data received from the ATM network 110, and from the PSTN 100, and from the side of the subscriber, where the different devices generate TDM voice information or high speed data. As an example, a PID 196 can generate TDM information and a converter set 198 or a computer with a NIC 191 card can generate high speed data. The devices in the residence or in the gate 200 can frame the information within the cells or ATM cells for transmission via the Unified Access Platform. In a preferred embodiment, the framing of the information within the ATM cells or cells, and the formation of the headers, is carried out in one or more Integrated Application Specific Circuits (ASICs).
- Methods for the implementation of such ASICs are well known to those skilled in the art. In an alternative mode, the frame of the TDM information and the high-speed data can be carried out with a program (software). Within the BDT 130 the framing of the TDM information within the cells or cells allows the efficient framing of those cells or cells to the individual Optical Distribution Units (ODUs) in the BDT which generates and receives optical signals from the NBUs 140 or USAMs 340. In a preferred embodiment there are 64 ODUs in the BDT 130. Additionally, a common BDT control card controls the routing of the cells or cells to the individual ODUs in the BDT 130. The use of cells or ATM cells in the BDT 130 and through the optical fiber 160 the voice and data information is allowed to be routed from a BDT 130 to the BNUs 140, USAM ADSL-RT 520, USAM ADSL-CO 510, and the USAM VDSLs 620, where Traditional analog telephony signals can be generated along with high-speed data signals. Because the transmission technique and the means for the transmission of high-speed data signals vary from installation to installation, it is important that it be capable of supporting several coaxial and xDSL downlink cable networks from the Unified Access Platform. . Although this invention has been illustrated with reference to the specific embodiments, it is apparent to those skilled in the art that various changes and modifications may be made that clearly fall within the scope of the invention. The invention is intended to be widely protected within the spirit and scope of the appended claims.
It is noted that in relation to this date, the best method known to the applicant, to carry out the aforementioned invention, is that it is clear from the present description of the invention. Having described the invention as above, property is claimed as contained in the following:

Claims (16)

- CLAIMS
1. A telecommunications system having a broadband digital terminal that receives digital high-speed data and telephony signals, a method for simultaneously providing high-speed data and telephony services, characterized in that it comprises the steps of: a ) receiving the digital telephone signals in said broadband digital terminal; b) receiving the high-speed data signals in said broadband terminal; c) combining said digital telephony signals with said high-speed data signals to form a combined signal of high-speed data and digital telephony; d) transmitting a combined signal of high-speed data and digital telephony to an access multiplexer via a telecommunications link; e) receiving said combined signal of high-speed data and digital telephony in said access multiplexer; f) generating an analog telephony signal in a first line card located in said access multiplexer; g) transmitting said analog telephony signal by means of a first twisted wire pair to a first location or location of the subscriber; h) generating a high-speed data signal compatible with the twisted wire pair in a second line card located in said access multiplexer for transmission by the twisted wire pair; i) transmitting said high speed data signal compatible with the twisted wire pair by a second twisted wire pair to a second location or location of the subscriber.
2. The method described in claim 1, characterized in that the access multiplexer is located substantially close to said wideband digital terminal.
3. The method described in claim 1, characterized in that said first and second locations or locations of the subscriber are the same. -
4. In a telecommunications system having a broadband digital terminal that receives high-speed data and telephony signals, a method for simultaneously providing telephony and high-speed data services, characterized in that it comprises the steps of: a ) receiving the digital telephone signals in said broadband digital terminal; b) receiving the high-speed data signals in said broadband digital terminal; c) combining said digital telephony signals with said high-speed data signals to form at least one combined signal of high-speed data and digital telephony; d) transmitting a first combined signal of high-speed data and digital telephony to a first terminal via a telecommunications link; e) transmitting a second combined signal of high-speed data and digital telephony to a second terminal via an optical fiber line wherein said second terminal of the subscriber is located in a server area; - 6 f) receiving said first combined signal of high-speed data and digital telephony in said first terminal; g) generating an analog telephony signal in a first line card located in said first terminal; h) transmitting said analog telephony signal by means of a first twisted wire pair from said terminal to a first location or location of the subscriber; i) receiving said combined signal of high-speed data and digital telephony in said second terminal; j) generating a high-speed data signal compatible with the twisted wire pair for transmission by the wire twisted pair in a second line card located in said second terminal; k) generating a high-speed data signal compatible with a pair of twisted wire for transmission by twisted wire pair; and 1) transmitting said high-speed data signal by the pair of twisted wire compatible from said second terminal by a second pair of twisted wire to a second location or location of the subscriber.
5. The method described in claim 4, characterized in that said first terminal is located substantially close to said broadband terminal.
6. In a telecommunications system having a broadband digital terminal connected to an access multiplexer which also connects to the premises of the subscriber, a method for providing high-speed telephony and data services, characterized in that it comprises the steps of : a) receiving digital telephony signals in said broadband digital terminal; b) receiving the high-speed data signals in said broadband digital terminal; c) combining digital telephony signals with high-speed data signals to form a combined data and telephony signal; d) transmitting said combined high-speed data and digital telephony signals to said access multiplexer via a telecommunications link; e) receiving said combined signal of high-speed data and digital telephony in said access multiplexer; f) generating an analog telephony signal in a line card in said access multiplexer; g) generating a high-speed data signal compatible with a twisted pair of wire in the line card in said access multiplexer; h) combining said analog telephony signal with said high-speed data signal compatible with a twisted pair of wire in said line card to form a combined high-speed data and analog telephony signal compatible with a pair of twisted wire; i) transmitting said combined high-speed telephony and data signal compatible with a pair of twisted wire from said line card to said subscriber premises; j) receiving said combined signal of high-speed data and analog telephony compatible with a twisted wire pair in a duplex receiver substantially close to said premises of the subscriber; and k) separating said analog telephony signal from said high speed data signal in said duplex receiver.
7. In a telecommunications system having a broadband digital terminal connected to an access multiplexer further connected to a subscriber premise, a method for providing high speed data and high speed data services, characterized in that it comprises the steps of: a) receiving digital telephony signals in said broadband digital terminal; b) receiving the high-speed data signals in said broadband digital terminal; c) combining the digital telephone signals with the high-speed data signals to form a combined signal of digital telephony and high-speed data; d) transmitting said combined signal of digital telephony and high-speed data to said access multiplexer via a telecommunications link; - e) receiving said combined signal of high-speed data and digital telephony in said access multiplexer; f) generating a combined signal of high-speed data and digital telephony in said line card in said access multiplexer; g) transmitting said combined signal from digital telephony and high-speed data in a pair of compatible twisted wire from said line card to said premises of the subscriber; h) receiving said combined signal of high-speed data and digital telephony in a pair of compatible twisted wire in a receiving device located substantially close to the residence of the subscriber; i) generating an analog telephony signal in said receiving device.
8. The method described in claim 7, further characterized in that said receiving device is supplied with power via said access multiplexer. - -
9. In a telecommunications system having a broadband digital terminal that receives high-speed data and telephony signals, an apparatus for simultaneously providing high-speed data and telephony services, characterized in that it comprises: a) means for receive the digital telephone signals in said broadband digital terminal; b) means for receiving the high-speed data signals in said wide-band digital terminal; c) means for combining said digital telephony signals with said high-speed data signals to form a combined signal of digital telephony and high-speed data; d) means for transmitting a combined signal of digital telephony and high-speed data to an access multiplexer via a telecommunications link; e) means for receiving said combined signal from digital telephony and high-speed data in said access multiplexer; f) means for generating an analog telephony signal in said first line card located in said access multiplexer; g) means for transmitting said analog telephony signal by a first twisted pair of wire to a location or location of the subscriber; h) means for generating a high-speed data signal compatible with the twisted wire pair in a second line card located in said access multiplexer by the twisted wire pair; i) means for transmitting said high-speed data signal compatible with the twisted wire pair by a second twisted wire pair to a second location or location of the subscriber.
10. The apparatus described in claim 9, further characterized in that said access multiplexer is located substantially close to said wideband digital terminal.
11. The apparatus described in claim 9, further characterized in that the first and second locations or locations are the same.
12. In a telecommunications system having a broadband digital terminal that receives high-speed data and telephony signals, an apparatus for providing high-speed telephony and data services, characterized in that it comprises: a) means for receiving signals from digital telephony in said broadband digital terminal; b) means for receiving high-speed data signals in said wide-band digital terminal; c) means for combining the digital telephone signals with the high-speed data signals to form at least one combined signal of high-speed data and digital telephony; d) means for transmitting a first combined signal of high-speed data and digital telephony to a first terminal via a telecommunications link; e) means for transmitting a second combined signal of high-speed data and digital telephony to a second terminal via an optical fiber line wherein said second terminal of the subscriber is located in a server area; - f) means for receiving said first combined signal of high-speed data and digital telephony in said first terminal; g) means for generating an analog telephony signal in a first line card located in said first terminal; h) means for transmitting said analog telephony signal by a first twisted wire pair from said first terminal to a first location or location of the subscriber; i) means for receiving said combined signal of high-speed data and digital telephony in said second terminal; j) means for generating a high-speed data signal compatible with the twisted wire pair for transmission by twisted wire pair in a second line card located in said second terminal; k) means for generating a high-speed data signal compatible with the twisted wire pair for transmission in the twisted wire pair; and 1) means for transmitting the high-speed data signal compatible with the twisted pair of wire from said second terminal by a second twisted wire pair to a second location or location of the subscriber.
13. The apparatus described in claim 12, further characterized in that said first terminal is located substantially close to said broadband terminal.
14. In a telecommunications system having a broadband digital terminal connected to an access multiplexer further connected to a subscriber's premise, an apparatus for providing high-speed data and telephony services, characterized in that it comprises: a) some means for receiving digital telephony signals in said broadband digital terminal; b) means for receiving the high-speed data signals in said broadband digital terminal; c) means for combining the digital telephony signals with the high-speed data signals to form a combined data and telephony signal; d) means for transmitting said combined signal of high-speed data and digital telephony to the access multiplexer via a telecommunications link; e) means for receiving said combined signal from digital telephony and high-speed data in said access multiplexer; f) means for generating an analog telephony signal in a line card in the access multiplexer; g) means for generating a high-speed data signal compatible with the twisted wire pair in said line card in the access multiplexer; h) means for combining the analog telephony signal with the high-speed data signal compatible with the twisted wire pair in the line card to form a combined signal of high-speed data and compatible high-speed data signal with the twisted wire pair; i) a means for transmitting said combined signal of analog telephony and high-speed data compatible with the twisted wire pair from the line card to said premises of the subscriber; j) means for receiving said combined high-speed data and analog telephony signal compatible with the twisted wire pair in a diplex receiver substantially close to the subscriber's premises; and k) means for separating the analog telephony signal from the high-speed data signal in the diplex receiver.
15. In a telecommunications system having a broadband digital terminal connected to an access multiplexer which also connects to the premises of the subscriber, an apparatus for providing high-speed telephony and data services, characterized in that it comprises: a) means to receive digital telephony signals in the broadband digital terminal; b) means for receiving the high-speed data signals in the broadband digital terminal; c) means for combining the digital telephony signals with the high-speed data signals to form a combined signal of digital telephony and high-speed data; d) means for transmitting said combined signal of digital telephony and high-speed data to the access multiplexer via a telecommunications link; e) means for receiving the combined signal of digital telephony and high-speed data in the access multiplexer; f) means for generating a combined signal of digital telephony and high-speed data compatible with the twisted wire pair in the line card in the access multiplexer; g) means for transmitting the combined signal of digital telephony and high-speed data from the line card to the premises of the subscriber; h) means for receiving the combined signal of high-speed data and analogue telephony in a pair of compatible wire twisted receiving device located substantially close to the residence of the subscriber; i) means for generating an analog telephony signal in the receiving device. -
16. The apparatus described in claim 15, further characterized in that the receiving device is supplied with power via the access multiplexer. - - SUMMARY OF THE INVENTION A Unified Access Platform (UAP) capable of providing high-speed data and telephony services in a number of different local loop configurations. In a first embodiment, a broadband digital terminal receives the telephony and high-speed data signals, and combines them into a signal based on a cell or cell which is transported to an access multiplexer. In the access multiplexer, a first line card generates an analog telephone signal, and a second card generates a high speed data signal. The analog telephony service is provided by means of a first twisted wire pair down conductor. In an alternative embodiment, a cell-based signal from the broadband terminal is transported to two separate terminals. The analog telephony service is provided to a subscriber's location or location from the first terminal, while the high-speed data services are provided to a second location or subscriber's location from the second terminal. Still another modality provides telephony and high-speed data services from a line card, signal, located in an access multiplexer. Telephony and high-speed data signals are generated on the line card and combined using a diplexer. In the residence, a reception multiplexer is used to separate the analog telephony signals from the high-speed data signals. Still another embodiment generates a high-speed data signal in an access multiplexer that contains a digital representation of the analog telephony signal. The high-speed data signal is sent from the access multiplexer to the residence, where a reception device generates an analog telephony signal and transmits the high-speed data signal to the appropriate terminal equipment.
MXPA/A/1999/009382A 1997-04-14 1999-10-13 Unified access platform MXPA99009382A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US60/043811 1997-04-14
US043811 1997-04-14
US08905775 1997-08-04

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MXPA99009382A true MXPA99009382A (en) 2000-08-01

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