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US6021158A Expired / Lapsed US ⏱️ 0.0 years remaining

Hybrid wireless wire-line network integration and management

Assignee: Texas Instruments Inc
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Filing: 1996-10-31
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Granted: 2000-02-01
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Expires: 2016-10-31
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Abstract

Abstract A modem that operates selectively in the voice-band frequency band and at higher frequency bands is provided. This modem supports multiple line codes, like DMT and CAP. The modem uses a Digital Signal Processor (DSP), so that different existing ADSL line codes, such as Discrete MultiTone (DMT) and Carrierless AM/PM (CAP), can be implemented on the same hardware platform. The modem negotiates in real-time, for a desired line transmission rate to accommodate line condition and service-cost requirement. The line code and rate negotiation process may be implemented at the beginning of each communication session through the exchange of tones between the modems. A four-step MDSL modem initialization process is provided for line code and rate compatibility.

Inventors

  • 👤 Paul E. Schurr
  • 👤 Walter Y. Chen
  • 👤 Douglas B. Weiner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 10:24
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/062; H04L; H04L1/00; H04L1/0001; H04L1/0002; H04L1/0003; H04L1/0009; H04L1/0015; H04L1/0016; H04L1/0023; H04L1/004; H04L1/0056; H04L1/0059; H04L25/00; H04L25/02; H04L25/03; H04L25/03006; H04L25/03343; H04L25/38; H04L25/40; H04L25/49; H04L25/4917; H04L25/4919; H04L25/4921; H04L27/00; H04L27/0008; H04L27/26; H04L27/2601; H04L27/2626; H04L27/2647; H04L5/00; H04L5/14; H04L5/1438; H04L1/12; H04L1/16; H04L2025/0335; H04L2025/03375; H04L2025/03414; H04L2025/03592; H04L2025/03598; H04L2025/03611; H04L27/2602; H04L27/261; H04L27/2613; H04L27/2655; H04L27/2656; H04L27/2668; H04L27/2673; H04L27/2675

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 254 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations. a node connected to said circuitry for two way wireless point-to-multipoint communications links, a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and for selecting between a set of subscriber available bandwidths, and circuitry for controlling bandwidth allocation.
Claim 2
Dependent Claim 254 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations. a node connected to said circuitry for two way wireless point-to-multipoint communications links, a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and for selecting between a set of subscriber available bandwidths, and circuitry for controlling bandwidth allocation.
Claim 3
Dependent Claim 269 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations, a node connected to said circuitry for two way wireless point-to-multipoint communications links, and a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and circuitry for dynamically adapting channel band capacity for wireless transmission based upon data rate demand, circuitry for changing a continuously variable subscriber bandwidth, and circuitry for controlling bandwidth allocation.
Claim 4
Dependent Claim 269 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations, a node connected to said circuitry for two way wireless point-to-multipoint communications links, and a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and circuitry for dynamically adapting channel band capacity for wireless transmission based upon data rate demand, circuitry for changing a continuously variable subscriber bandwidth, and circuitry for controlling bandwidth allocation.
Claim 5
Dependent Claim 262 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations, a node connected to said circuitry for two way wireless point-to-multipoint communications links, and a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and circuitry for dynamically adapting channel band capacity and for adjusting transmitted data rates for wireless transmission based upon measured inband signal degradation.
Claim 6
Dependent Claim 262 words
A two-way communications system, comprising: circuitry at a centrally located point for providing communications signals in the form of digital data from other communications systems or networks to a preselected multiplicity of subscriber locations, a node connected to said circuitry for two way wireless point-to-multipoint communications links, and a wireless network unit for receiving said multipoint communications and providing preselected portions of said communications to respective end users using one or more single-pair or two-pair copper wire transmission links, said node for two way wireless point-to-multipoint communications links comprising two-way microwave or millimeter wave wireless circuitry, a plurality of nodes for two way wireless point-to-multipoint communications links which are distributed in a manner to provide information from said centrally located point to a multiplicity of local areas distributed around and adjacent said centrally located point, a receiver located at each of said local areas, circuitry for converting received microwave signals to data signals which can be transmitted over copper pair wires from one of said local areas to one or more subscribers served by said local area and; and circuitry for converting data signals received from the end subscribers via copper pair wires into microwave signals for transmission to said centrally located point, a node containing circuitry for converting received microwave signals into suitable data signals for serving subscribers via copper pair wires, and circuitry for converting data signals from copper pair wires into microwave signals for wireless transmission, and circuitry for dynamically adapting channel band capacity and for adjusting transmitted data rates for wireless transmission based upon measured inband signal degradation.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-01-31 2003-08-02 2004-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-01-31 2007-08-02 2008-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-01-31 2011-08-02 2012-02-01 $7700.00 Window Closed / Lapsed

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