Method and apparatus for providing a communication system infrastructure
First Claim
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1. A method for obtaining communication system infrastructure information for a wireless communication system, the method comprising the steps of:
- a) transmitting, by a primary site, a first training signal simultaneously to a plurality of secondary sites via an outbound wireline communication path;
b) upon receiving the training signal, determining, by each of the plurality of secondary sites, an outbound bit table based on a spectral response of the outbound wireline communication path;
c) requesting, by the primary site, the outbound bit table from one of the plurality of secondary sites;
d) upon receipt of the outbound bit table, storing, by the primary site, the outbound bit table of the one of the plurality of secondary sites;
e) requesting, by the primary site, a second training signal from the one of the plurality of secondary sites;
f) transmitting, by the one of the plurality of secondary sites, the second training signal to the primary site via an inbound wireline communication path;
g) upon receiving the second training signal, determining, by the primary site, an inbound bit table for the one of the plurality of secondary sites based on a spectral response of the inbound wireline communication path;
h) storing, by the primary site, the inbound bit table for the one of the plurality of secondary sites, andi) repeating steps (c) through (h) for remaining sites of the plurality of secondary sites to produce a data base of outbound bit tables and inbound bit tables.
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Abstract
In a communication system utilizing DMT technology to couple a primary site (102) to a plurality of secondary sites (104-108), infrastructure control channels are established in the following manner. Having obtained a plurality of site bit loading tables, the primary site (102) generates a control channel bit loading table from the plurality of site bit loading tables. From the control channel bit loading table, the primary site selects at least one carrier channel to function as the control channel. The selection is based on bandwidth requirements for the control channel.
192 Citations
43 Claims
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1. A method for obtaining communication system infrastructure information for a wireless communication system, the method comprising the steps of:
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a) transmitting, by a primary site, a first training signal simultaneously to a plurality of secondary sites via an outbound wireline communication path; b) upon receiving the training signal, determining, by each of the plurality of secondary sites, an outbound bit table based on a spectral response of the outbound wireline communication path; c) requesting, by the primary site, the outbound bit table from one of the plurality of secondary sites; d) upon receipt of the outbound bit table, storing, by the primary site, the outbound bit table of the one of the plurality of secondary sites; e) requesting, by the primary site, a second training signal from the one of the plurality of secondary sites; f) transmitting, by the one of the plurality of secondary sites, the second training signal to the primary site via an inbound wireline communication path; g) upon receiving the second training signal, determining, by the primary site, an inbound bit table for the one of the plurality of secondary sites based on a spectral response of the inbound wireline communication path; h) storing, by the primary site, the inbound bit table for the one of the plurality of secondary sites, and i) repeating steps (c) through (h) for remaining sites of the plurality of secondary sites to produce a data base of outbound bit tables and inbound bit tables. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for obtaining communication system infrastructure information, the method comprising the steps of:
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a) transmitting, by a primary site, a first training signal simultaneously to a plurality of secondary sites via a first wireline communication path; b) upon receiving the training signal, determining, by each of the plurality of secondary sites, an outbound bit table based on a spectral response of the first wireline communication path; c) requesting, by the primary site, the outbound bit table from one of the plurality of secondary sites; d) upon receipt of the outbound bit table, storing, by the primary site, the outbound bit table of the one of the plurality of secondary sites; and e) repeating steps (c) through (d) for remaining sites of the plurality of secondary sites to produce a data base of outbound bit tables. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for obtaining communication infrastructure information, the method comprising the steps of:
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a) requesting, by a primary site, a second training signal from one of a plurality of secondary sites; b) transmitting, by the one of the plurality of secondary sites, the second training signal to the primary site via a wireline communication path; c) upon receiving the second training signal, generating, by the primary site, an inbound bit table for the one of the plurality of secondary sites by affiliating a bit loading with each inbound carrier channel of a plurality of inbound carrier channels of the wireline communication path; d) storing, by the primary site, the inbound bit table for the one of the plurality of secondary sites, e) repeating steps (a) through (d) for remaining sites of the plurality of secondary sites to produce a data base of inbound bit tables; and f) establishing an inbound control channel based on the inbound bit tables of the data base. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A method for establishing a control channel, the method comprises the steps of:
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generating a control channel bit loading table from a plurality of bit loading tables; from the control channel bit loading table, selecting at least one carrier channel as the control channel; and transporting identity of the at least one carrier channel to sites affiliated with one of the plurality of bit loading tables.
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39. An apparatus for establishing infrastructure control channels, the apparatus includes:
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input for receiving outbound bit loading information from a plurality of sites; memory for storing the outbound bit loading information; and a processor that is operably coupled to the input and the memory, wherein the processor transmits a first training signal simultaneously to the plurality of sites for generation of the outbound bit loading information, and wherein the processor requests a second training signal from the plurality of sites to produce inbound bit loading tables. - View Dependent Claims (40, 41)
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42. A method for obtaining communication system infrastructure information for a wireless communication system, the method comprising the steps of:
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a) transmitting, by a primary site, a first training signal to a plurality of secondary sites via a first twisted pair wireline communication path; b) upon receiving the training signal, determining, by each of the plurality of secondary sites, an outbound bit table based on a spectral response of the first twisted pair wireline communication path; c) requesting, by the primary site via the first twisted pair wireline communication path, the outbound bit table from one of the plurality of secondary sites; d) upon receipt of the outbound bit table, storing, by the primary site, the outbound bit table of the one of the plurality of secondary sites; e) requesting, by the primary site via the first twisted pair wireline communication path, a second training signal from the one of the plurality of secondary sites; f) transmitting, by the one of the plurality of secondary sites, the second training signal to the primary site via a second twisted pair wireline communication path; g) upon receiving the second training signal, determining, by the primary site, an inbound bit table for the one of the plurality of secondary sites based on a spectral response of the second twisted pair wireline communication path; h) storing, by the primary site, the inbound bit table for the one of the plurality of secondary sites, and i) repeating steps (c) through (h) for remaining sites of the plurality of secondary sites to produce a data base of outbound bit tables and inbound bit tables.
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43. An apparatus for establishing infrastructure control channels, the apparatus comprising:
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input for receiving outbound bit loading information from a plurality of sites; memory for storing the outbound bit loading information; and a processor that is operably coupled to the input and the memory, wherein the processor transmits a first training signal via a first twisted pair wireline transmission path to the plurality of sites for generation of the outbound bit loading information, wherein the processor receives a second training signal from each of the plurality of sites via a second twisted pair wireline transmission path, and wherein the processor produces inbound bit loading tables based on a spectral response of the second training signal.
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Specification