MXPA00001976A - Apparatus and method for concurrent voice and data transmission - Google Patents

Abstract

Communication apparatus comprising a first xDSL transceiver for conveying an xDSL transmission, a splitter (50) for conveying a POTS transmission via a POTS telephone line and the xDSL transmission via an xDSL telephone line, and a second xDSL transceiver being in communication with the first xDSL transceiver and the splitter (50).

Description

APPARATUS AND METHOD FOR JOINT VOICE AND DATA TRANSMISSION FIELD OF THE INVENTION The present invention relates to telecommunication systems in general, and in particular to methods and apparatus for joint voice and data communication on a single medium.

BACKGROUND OF THE INVENTION The old flat telephone service (POTS), the standard telephone service to which most houses are connected to public switched telephone network (PSTN) use is generally not used for joint voice and data transmission, and is currently limited to transmission speeds of up to 56.6 kbit / s. Technologies such as digital subscriber line (xDSL) services are being developed to allow data, voice and video to be simultaneously transmitted over standard twisted pair copper wire telephone lines at multimega bit rates. XDSL is considered as an alternative to the most expensive and time-consuming installations of broadband communication networks based on high-speed fibers.

REF .: 32923 ^ t ^ Ü ^ S ^ ^ r ^ Competitive xDSL technologies include ADSL, RADSL, HDSL, SDSL and VDSL. Each one is the most suitable for a different application, making compensations between the signal distance and the speed and each one with a different bandwidth transmission configuration. The asymmetric digital subscriber line (ADSL) is perhaps the best-known variant of xDSL, providing more "downstream" transmission bandwidth to a telephone subscriber than "upstream" the subscriber. The downstream transmission speeds vary between 1.5 Mbit / s to a theoretical 8 Mbit / s, while the upstream transmission rates vary between 16 kbit / s to a theoretical 1 Mbit / s or higher, each depending on the quality of the line, the distance and the wire gauge. Based on the environmental conditions, ADSL can transmit data at a rate of 1,544 Mbit / s over distances of up to 6000 m using a standard wire of 24 gauge and 8 Mbit / s over distances of 4,000 m or less. ADSL works by sending digital pulses in the high frequency area of telephone wires. Since these high frequencies are not used by normal voice communications, ADSL can operate in conjunction with voice communication over the same telephone wires. A line of a digital subscriber at a very high bit rate (VDSL) is the fastest xDSL technology.

•. ^ Ja3M? L "It can supply downstream transmissions at a speed of 13 to 52 Mbit / s and upstream transmissions at a rate of 1.5 to 2.3 Mbit / s on a pair of single wires.Unfortunately, VDSL has an operating distance maximum of only 300 - 1,500 m. A digital subscriber line access multiplexer (DSLAM) phone jointly transports and divides voice and data transmissions, using digital subscriber line access multiplexers to send and receive these transmissions to / from Subscribers over standard telephone lines using ADSL modem Line splitters or POTS on the carrier alternately divide upstream ADSL transmissions, directing voice communications over the public switched network and data streams to serve providers such as service providers of Internet (ISP), and joint voice and data streams for downstream transmission. or POTS in subscriber position similarly joins and divides ADSL transmissions, with voice transmissions ending in a telephone or other POTS device and data transmissions ending in an ADSL modem, DSLAM is not advantageous to the extent that is relatively expensive, generally requires professional installation of the POTS splitter at the subscriber's position and a different wiring of the subscriber's telephone outputs to adapt the transmission -.A.a -? K * > v simultaneous data and voice and is primarily incompatible with future VDSL systems and "Fiber for the envelope" (FTTC), which are now being planned.

BRIEF DESCRIPTION OF THE INVENTION The present invention seeks to provide novel devices and methods for providing xDSL service to subscribers. The present invention provides an improved system which solves the disadvantages of the prior art as discussed above. A communication system is provided in which the voice and data transmissions are remotely linked from a telephone carrier to a substation located near one or more subscribers. A modified xDSL carrier accommodates data transmissions for one or more subscribers and at the same time activates the substation, of all other standard telephone wires. The substation then multiplexes the xDSL transmissions and transmits them to the subscribers. The embodiments of the present invention are advantageous over the prior art in some or all of the following aspects: a) an xDSL line can be used that connects the telephone carrier and the substation to accommodate high-speed transmissions for multiple subscribers, - b) the rewiring of a subscriber's home telephone network is not required; c) a very simple low pass filter can be used to connect a telephone to other POTS devices with the xDSL transmission that enters a telephone receptacle and does not require professional installation; d) digital pair gain devices, digital loop carriers and remote switching units can be used in parallel with the xDSL transmission; e) the total distance over the copper wire is increased by approximately 1 km; f) a greater number of subscribers can be accommodated using the same shelf space as in the prior art, - g) the energy consumption per subscriber is reduced; and h) the substation does not require a local source of energy because it receives the energy from the central office via standard telephone wires. Therefore, a communication apparatus including a first xDSL transceiver for transporting an xDSL transmission, a splitter for transporting a POTS transmission via a POTS telephone line and the xDSL transmission via an XDSL transmission is provided here according to a preferred embodiment of the present invention. an xDSL phone line, and a second Y - . - ** ft. * -. • »* _____-? > , ... *,; _____-___-_________________ ^^^^^ 8MÍfe ^^^ = ^^ _____ ¿__ £ _ ^^ & «a > ^ ^ ^^ a ^ _ ^^ = i xDSL transceiver that is in communication with the first xDSL transceiver and the divisor. Furthermore, according to a preferred embodiment of the present invention, the first xDSL transceiver includes a plurality of first xDSL transceivers and the communication apparatus further includes a reverse multiplexing apparatus in communication with any of the plurality of first xDSL transceivers. Additionally, in accordance with a preferred embodiment of the present invention, a remote power apparatus of the present invention is included for receiving power over a standard telephone line. In addition, according to a preferred embodiment, of the present invention, the standard telephone line is operative to transport the xDSL transmission. Additionally, in accordance with a preferred embodiment of the present invention, the splitter includes a plurality of splitters and the communication apparatus further includes a POTS multiplexing apparatus in communication with the plurality of splitters. Additionally, according to a preferred embodiment of the present invention, the POTS multiplexer apparatus receives a combined POTS transmission of a plurality of POTS transmissions and multiplies the plurality of POTS transmissions by means of the plurality of dividers. Additionally, in accordance with a preferred embodiment of the present invention, the POTS multiplexer apparatus includes a digital pair gain apparatus. Additionally, according to a preferred embodiment of the present invention, the POTS multiplexer apparatus includes a digital loop carrier apparatus. In addition, according to a preferred embodiment of the present invention, the POTS multiplexer apparatus includes a remote switching unit apparatus. Further provided in accordance with a preferred embodiment of the present invention is a communication system that includes a remote xDSL transceiver, a PSTN switch and a substation in communication with the remote xDSL transceiver via at least one xDSL telephone line and a PSTN via at least one POTS telephone line, the substation includes a first xDSL transceiver for communication in at least one address of an xDSL transmission via at least one xDSL telephone line, a second xDSL transceiver for communication in at least one address, the xDSL transmission with the first xDSL transceiver, and a splitter for communicating in at least one address, a POTS transmission via at least one POTS telephone line and the xDSL transmission with the second xDSL transceiver.

In addition, according to a preferred embodiment of the present invention, at least one subscriber telephone line is included. Additionally, in accordance with a preferred embodiment of the present invention, the splitter communicates in at least one address via at least one telephone line of the subscriber. Additionally, in accordance with a preferred embodiment of the present invention, at least one telephone line of the subscriber includes a plurality of telephone lines of the subscriber and the substation is communicated in a multiplexed manner via a plurality of telephone lines of the subscriber. Further, in accordance with a preferred embodiment of the present invention, a low pass filter is included for communication with the substation via the subscriber's telephone line. Additionally, in accordance with a preferred embodiment of the present invention, a POTS apparatus is included for communication via the low pass filter. Additionally, in accordance with a preferred embodiment of the present invention, the communication between the remote xDSL transceiver and the substation uses an ADSL protocol.

Additionally, in accordance with a preferred embodiment of the present invention, any of the transmissions via the subscriber's telephone line uses either an ADSL protocol or a VDSL protocol. In addition, according to a preferred embodiment of the present invention, any of the telephone lines is a twisted pair telephone line. It is further provided according to a preferred embodiment of the present invention, a method of Communication including allowing at least one xDSL transmission to a remote substation via at least one xDSL telephone line, transmitting at least one POTS transmission to a remote substation via at least one POTS telephone line, and combining at least one minus one transmission, xDSL and so minus a POTS transmission to a remote substation using at least one splitter. Additionally, according to a preferred embodiment of the present invention, there is provided a communication method that includes transmitting a plurality of xDSL transmissions joined for a plurality of subscribers to a remote sub-station via at least one xDSL telephone line, transmitting a plurality of POTS transmissions linked for the plurality of subscribers to the remote sub-station via at least one POTS telephone line, combining anyone of the plurality of xDSL transmissions and any of the plurality of POTS transmissions that are in the remote sub-station to form a combined transmission using at least one divider, and multiplexively communicate the combined transmission with any of the plurality of 5 subscribers. Additionally, there is provided in accordance with a preferred embodiment of the present invention, a communications apparatus that includes: at least one xDSL transceiver located externally to the subscriber's premises; a standard telephone line that connects at least one xDSL transceiver directly to a telephone network of the subscriber's premises; at least one xDSL transceiver located in the 15 subscriber facilities, coupled to the telephone network of the subscriber's premises; and at least one telephone that is located in the subscriber's premises, coupled to the telephone network of the subscriber's facilities. Preferably, the telephone network of the subscriber's facilities consists of a telephone network existing in the subscriber's house and that does not require rewiring of the same. According to a preferred embodiment of the present invention, the apparatus also includes a low pass filter i »* a¡Síme & ^ -w? afl. f ». . . «? -,« '- 8.j? .m »MlM-«. -_J *. J «- ^ .- j» -. ^ -., -_- a ^ raMfe¡Sl? ÉWti ¿¿> i iatt «? ^ that connects a telephone in a telephone receptacle to the xDSL transceiver via the standard telephone line and the telephone network of the subscriber's premises. Additionally, a method for providing xDSL communications for the subscriber's facilities is provided, according to a preferred embodiment of the present invention, which includes: providing at least one xDSL transceiver externally to the subscriber's premises; connect, via a standard telephone line, at least one xDSL transceiver directly to the telephone network of the subscriber's premises; coupling at least one xDSL transceiver located in the subscriber's premises to the telephone network of the subscriber's premises; and coupling at least one telephone located in the subscriber's premises to the telephone network of the subscriber's premises. According to a preferred embodiment of the present invention, the provision of the xDSL communication to the telephone network of the subscriber's installation does not require reclosing thereof. Preferably, the method also includes connecting a low pass filter between the telephone and the telephone network of the subscriber's facility in the telephone receptacle.

It is noted that through the specification and claims, the term "POTS apparatus" includes telephones, modems and other devices that can be connected to PSTN for low frequency voice and / or data communication therethrough. It is further noted that through the specification and claims, the terms "telephone line", "telephone cable" and "telephone wire" are used interchangeably and refer to the physical medium for transporting voice, data and video transmissions common to the service POTS, which typically comprises one or two pairs of twisted wires.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be understood and appreciated from the following detailed description, taken in conjunction with the drawings, in which: Figure 1 is a simplified block diagram of a communication system constructed and operative in accordance with a preferred embodiment of the invention. present invention, and Figure 2 is a simplified block diagram of the apparatus used in the communication system of Figure 1 constructed and operative in accordance with a preferred embodiment of the present invention. ^^ áAs ^ ^^ ^^^^ j ^^.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Reference is now made to Figure 1, which is a simplified block diagram of a communications system constructed and operative in accordance with a preferred embodiment of the present invention. A service provider 10, typically a telephone company, is shown to be preferably configured with one or more switches 12, PSTN to provide a POTS service to one or more subscribers 14. The service provider 10 is also preferably configured with one or more. transceivers 16, typically ATU-C units or other known modems, xDSL to provide high-speed transmissions to subscribers 14. A substation 18 is located near subscribers 14, typically within 15 to 1000 meters within each subscriber 14. substation 18 is in communication with transceiver 16, typically on one or more standard telephone lines 20, referred to herein as xDSL lines. It is a particular feature of the present invention that the xDSL line 20 is used for high speed transmissions between the substation 18 and the transceiver 16, such as the ADSL transmissions, and that the additional xDSL line 20 or alternatively can be used to provide power to the substation 18. The energy production is preferably provided on the xDSL line 20 through the use '^^^^? f iif | i? w? ta? ^ ^ ^ ^ ^ ^ aifeate a low frequency bandwidth of line 20 xDSL for power instead of POTS transmissions. The substation 18 is also typically in communication with the PSTN switch 12 for POTS transmissions on one or more standard telephone lines 22, referred to herein as 22 POTS lines. The substation 18 is also in communication with the subscribers 14, typically on one or more standard telephone lines 24. Subscriber 14 typically has one or more transceivers 26, each typically in an xDSL modem capable of accommodating ADSL or VDSL transmissions, which is connected to a telephone line 24 with devices such as a computer 28. Subscriber 14 also typically has one or more low pass filters 30, each connecting a telephone line 24 to a POTS apparatus such as a telephone 32 and filtering out the frequency transmissions of the low frequency POTS transmissions. It is appreciated that the low pass filter 30 is not necessarily required and may be of quality without filtering the POTS transmission either to or from the POTS apparatus without guaranteeing filtering. The typical operation of the communication system of Figure 1 is described as follows. One or more high-speed transmissions linked to one or more subscribers 14 are transmitted by the transceiver 16 on line 20 xDSL to substation 18 together with energy for substation 18. High-speed transmissions are typically sent using an ADSL modem (not shown). One or more POTS transmissions are also transmitted by the PSTN switch 12 over the POTS lines 22 to the substation 18. The substation 18 then joins the high-speed transmissions entering with the POTS transmissions and multiplexes each transmission over the telephone lines 24 to the subscriber 24 appropriate for which the transmission is intended. Transmissions over telephone lines 24 are typically sent using a VDSL modem (not shown), although an appropriate xDSL protocol can be used for the distance between substation 18 and subscribers 14, including ADSL. The subscriber 14 receives a high-speed transmission from the telephone line 24 on the transceiver 26, where it can be directed to a computer 28. The subscriber 14 receives the POTS transmission from the telephone line 24 where any high-frequency transmission is separated by filtration in the low pass filter 30. Any low frequency POTS transmission is then routed to telephone 32. Transmissions originating from subscriber 14 are received at substation 18 and divided into high-speed transmissions to be routed over line xDSL and POTS transmissions to route them over the line 22 POTS. It will be appreciated that inverse multiplexing can be used where multiple xDSL lines 20 are used for High-speed transmissions between transceiver 16 and substation 18. The configuration of the communication system of FIG. 1 can additionally provide POTS multiplexer devices 36 such as digital pair gain devices. , digital loop carriers and remote switching units for joining and dividing multiple POTS lines into the service provider 10 and the substation 18 for transmission over a simple communication medium 38. The communication means 38 may be a standard POTS telephone line, HDSL, fiber optic or other suitable means for use with the devices 36, as are known in the art. Reference is further made to Figure 2, which is a simplified block diagram of the substation 18 of Figure 1, constructed and operative in accordance with a preferred embodiment of the present invention. An xDSL modem is shown, typically an ADSL modem to communicate xDSL transmissions via an xDSL line 20. One or more additional xDSL modems 42 can be provided to accommodate additional xDSL lines which can optionally be combined using a reverse multiplexer 44, as they are known. Optionally, a power supply 46 is provided where the energy is activated by means of line xDSL as described above. One or more 48 xDSL modems are provided, typically VDSL modems to communicate transmissions xDSL to subscribers via telephone lines 24, typically through one or more splitters 50 that are provided. The POTS multiplexer devices 36 are also shown by dividing a combined POTS transmission received via the communications medium 38 within the multiple POTS transmissions 54. A logic circuit and a processing unit are provided to control one or more of the components described in the foregoing, as is known in the art. It will be appreciated that any of the components of the present invention can be implemented in a computer or other physical element (hardware), electronic, mechanical or electromechanical, as well as in programming elements (software) or any suitable combination, using conventional techniques. It will be appreciated that various features of the invention have been described, for clarity, in the context of separate embodiments and may also be provided in combination in a single embodiment. Conversely, various features of the invention which have been described, for brevity in the context of a single embodiment may also be provided separately or in any suitable sub-combination. It will be appreciated by persons skilled in the art that the present invention is not limited to what has been shown and described particularly in the foregoing, instead of this, the The scope of the present invention is defined solely by the following claims: It is noted that with respect to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects or products to which it refers.

Claims (24)

1. Having described the invention as above, the content of the following claims is claimed as property: 1. A communication apparatus, characterized in that it comprises: a first xDSL transceiver for transporting an xDSL transmission; a splitter for transporting a POTS transmission via a POTS telephone line and xDSL transmission via an xDSL telephone line; and a second xDSL transceiver that is in communication with the first xDSL transceiver and the splitter, and wherein the first xDSL transceiver comprises a plurality of first xDSL transceivers; and wherein the communication apparatus further comprises: an inverse multiplexer apparatus in communication with any of a plurality of first xDSL transceivers.
2. 2. The communication apparatus, according to claim 1, characterized in that it further comprises a remote power device for receiving power over a standard telephone line.
3. 3. The communication apparatus, according to claim 2, characterized in that the telephone line is operative to transport the xDSL transmission.
4. 4. A communication apparatus, characterized in that it comprises: a first xDSL transceiver for transporting an xDSL transmission; a splitter for transporting a POTS transmission via a POTS telephone line and xDSL transmission via an xDSL telephone line; and a second xDSL transceiver in communication with the first xDSL transceiver and the splitter, wherein the splitter comprises a plurality of splitters and wherein the communication apparatus further comprises a POTS multiplexing apparatus in communication with the plurality of splitters.
5. 5. The communication apparatus according to claim 4, characterized in that the multiplexer apparatus POTS receives a combined POTS transmission of a plurality of POTS transmissions and multiplexed communicates the plurality of POTS transmitters via the plurality of dividers.
6. 6. The communication apparatus, according to claim 4, characterized in that the POTS multiplexer apparatus comprises a digital pair gain apparatus.
7. 7. The communication device, according to claim 4, characterized in that the POTS multiplexer apparatus comprises a digital loop carrying device.
8. 8. The communication apparatus, according to claim 4, characterized in that the POTS multiplexer apparatus comprises a remote switching unit apparatus.
9. 9. A communication system, characterized in that it comprises: a remote xDSL transceiver, - a PSTN switch; and a substation in communication with the remote xDSL transceiver via at least one xDSL telephone line and the PSTN switch via at least one POTS telephone line, wherein the substation comprises: a first xDSL transceiver for communication in at least one address a transmission via at least one xDSL phone line; a second xDSL transceiver for communication in at least one direction of the xDSL transmission with the first xDSL transceiver; and a divider for communication in at least one address of a POTS transmission via at least one POTS telephone line and the xDSL transmission with the second xDSL transceiver.
10. 10. The communication system, according to claim 9, further comprising at least one subscriber telephone line.
11. 11. The communication system, according to claim 10, characterized in that the splitter communicates in at least one address via at least one subscriber telephone line.
12. 12. The communication system, according to claim 10, characterized in that at least one subscriber telephone line comprises a plurality of subscriber telephone lines and wherein the substation is communicated multiplexed via a plurality of telephone lines of subscriber. subscriber. ^^^^^^^ Mtia & m ^ ß ^ &
13. 13. The communication system, according to claim 10, characterized in that it also comprises a low pass filter for communication with the substation via the subscriber's telephone line.
14. 14. The communication system, according to claim 13, characterized in that it further comprises a POTS apparatus for communication via the low pass filter.
15. 15. The communication system, according to claim 9, characterized in that the communication between the remote xDSL transceiver and the substation uses an ADSL protocol.
16. 16. The communication system, according to claim 10, characterized in that any of the transmissions via the telephone line of the subscriber uses the ADSL protocol and the VDSL protocol.
17. 17. The communication system, according to claim 1, characterized in that any of the telephone lines are twisted pair telephone lines.
18. 18. A communication method, characterized in that it comprises.- transmit at least one xDSL transmission to a remote substation via at least one xDSL telephone line; transmit at least one POTS transmission to the remote substation via at least one POTS telephone line; 5 and combining at least one xDSL transmission and at least one POTS transmission in the remote substation using at least one splitter; communicate • the xDSL and POTS 10 combined transmissions to a subscriber's telephone network at one of the subscriber's facilities via an xDSL transceiver located at the subscriber's premises; and connecting a telephone to the subscriber's installation telephone network via a frequency filter to provide POTS communications.
19. 19. A communication method, characterized in that it comprises: transmitting a plurality of xDSL transmissions 20 bound for a plurality of subscribers to a remote substation via at least one xDSL telephone line; transmitting a plurality of POTS transmissions linked for the plurality of subscribers to the remote substation via at least one POTS telephone line; Y combining any of the plurality of xDSL transmissions and any of the plurality of POTS transmissions in the remote substation to form a combined transmission using at least one splitter; multiplexing communicating the combined xDSL and POTS transmissions to any of the plurality of subscribers in the subscriber's facility telephony network at one of the subscriber's facilities via an xDSL transceiver located at the subscriber's premises; connect a telephone to the telephone network of the subscriber's facility via a frequency filter in a telephone receptacle to provide POTS communications.
20. 20. A communications apparatus, characterized in that it comprises: at least one xDSL transceiver located externally to the subscriber's premises; a standard telephone line that connects at least one xDSL transceiver directly to the telephone network of the subscriber's facility; at least one xDSL transceiver located in the subscriber's facility, coupled between the telephony network of the subscriber's facility and a non-POTS device; Y . ,, - »» - m * &. J faith .. a frequency filter that is located in the subscriber's installation, coupled between the telephony network of the subscriber's installation and at least one telephone that is located in the subscriber's installation.
21. 21. The communication device, according to claim 20, characterized in that the telephone network of the subscriber's installation comprises a telephone network of the subscriber that exists in the house and does not require rewiring of the same.
22. 22. The communication apparatus, according to claim 20, characterized in that it further comprises a low pass filter that connects a telephone to the telephone receptacle with the xDSL transceiver via a standard telephone line and the telephone network of the subscriber's premises.
23. 23. A method for providing xDSL communication for a subscriber's facilities, characterized in that it comprises: providing at least one xDSL transceiver externally to the subscriber's facility; connect by means of a standard telephone line, at least one xDSL transceiver directly to the telephony network of the subscriber's facility; coupling at least one xDSL transceiver located 5 at the subscriber's facilities to the subscriber's installation telephone network; and coupling at least one telephone located at the subscriber's facility to the subscriber's installation telephone network via a frequency filter in the telephone receptacle 10 to provide POTS communications.
24. 24. The method according to claim 23, characterized in that the provision of an xDSL communication to the installation telephony network of the subscriber does not require a rewiring of the same. , ^ X ^^ > & .yy **,: l < - ?? ?? V r j j j j j APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR APAR SUMMARY OF THE INVENTION A communication apparatus is provided comprising a first xDSL transceiver for transporting an xDSL transmission, a splitter (50) for transporting a POTS transmission by means of a POTS telephone line and xDSL transmission via an xDSL telephone line, and a second transceiver xDSL is in communication with the first xDSL transceiver and the splitter (50). ^ "K" ---- "- '- - --- * -» * • - * «' + .- *« A_I