US20020032001A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for transmitting data
Assignee: Commscope Technologies LLC
•
Filing: 1999-10-01
•
Granted: —
•
Expires: 2019-10-01
Abstract
Abstract A transmission system ( 10 ). The transmission system communicates data to a number of subscribers ( 14 a, 14 b ). The transmission system includes a transceiver ( 12 ) that has a number of highly directional antennas ( 28 ). A number of digital repeaters ( 16 a, 16 b, 16 c ) are disposed in a geographic region serviced by the transceiver. The repeaters include a sectorized antenna that communicates with subscribers in a number of sectors of the geographic region of the repeater. The repeater also includes an upstream demodulator/modulator circuit ( 19 ). The upstream demodulator/modulator circuit demodulates data from signals from subscribers that were modulated with a first modulation technique, and generates a re-modulated signal with the data using a second modulation technique. The second modulation technique is different from the first modulation technique such that the signals from the subscribers from the number of sectors are combined in the re-modulated signal so as to increase the capacity of the transmission system. The digital repeaters also include a highly directional antenna, that is coupled to the demodulator/modulator circuit and that communicates the re-modulated signal to the transceiver.
Inventors
- 👤 Larry G. Fischer
- 👤 William C. Hamer
- 👤 Sheryl H. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:48
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/155; H04B7/15528; H04B7/1555
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
150 words
1 . A transmission system that communicates data to a number of subscribers, the transmission system comprising: a transceiver that has a number of highly directional antennas; a plurality of digital repeaters disposed in a geographic region serviced by the transceiver, the repeaters including: a number of antennas, each disposed to communicate with subscribers in a sector of the geographic region of the repeater; an upstream modulation circuit that demodulates data from carrier signals from subscribers that were modulated with a first modulation technique, and generates a re-modulated signal with the data using a second modulation technique, different from the first modulation technique such that the signals from the subscribers from the number of sectors are combined in the re-modulated signal so as to increase the capacity of the transmission system; and a highly directional antenna, coupled to the upstream modulation circuit, that communicates the re-modulated signal to the transceiver.
Claim 2
Dependent Claim
150 words
1 . A transmission system that communicates data to a number of subscribers, the transmission system comprising: a transceiver that has a number of highly directional antennas; a plurality of digital repeaters disposed in a geographic region serviced by the transceiver, the repeaters including: a number of antennas, each disposed to communicate with subscribers in a sector of the geographic region of the repeater; an upstream modulation circuit that demodulates data from carrier signals from subscribers that were modulated with a first modulation technique, and generates a re-modulated signal with the data using a second modulation technique, different from the first modulation technique such that the signals from the subscribers from the number of sectors are combined in the re-modulated signal so as to increase the capacity of the transmission system; and a highly directional antenna, coupled to the upstream modulation circuit, that communicates the re-modulated signal to the transceiver.
Claim 3
Dependent Claim
26 words
2 . The transmission system of claim 1 , wherein the upstream modulation circuit demodulates data from signals that were modulated with quadrature phase shift keying.
Claim 4
Dependent Claim
22 words
3 . The transmission system of claim 2 , wherein the upstream modulation circuit generates the re-modulated signal using quadrature amplitude modulation.
Claim 5
Dependent Claim
27 words
4 . The transmission system of claim 3 , wherein the upstream modulation circuit generates the re-modulated signal using quadrature amplitude modulation with a 64 point constellation.
Claim 6
Dependent Claim
28 words
5 . The transmission system of claim 1 , wherein the highly directional antenna of the transceiver and the highly directional antenna of the repeaters comprise cardioid antennas.
Claim 7
Dependent Claim
94 words
10 . A method for upstream communication between a subscriber and a communication service provider over a transmission system, comprising the steps of: receiving signals with a number of sectorized repeaters from subscribers, the signals being modulated with data using a first modulation technique; demodulating the data from the signals; generating a re-modulated signal with the data from the subscribers using a second modulation technique that is different from the first modulation technique so as to increase the capacity of the transmission system; communicating the re-modulated signal to a transceiver of the transmission system.
Claim 8
Dependent Claim
94 words
10 . A method for upstream communication between a subscriber and a communication service provider over a transmission system, comprising the steps of: receiving signals with a number of sectorized repeaters from subscribers, the signals being modulated with data using a first modulation technique; demodulating the data from the signals; generating a re-modulated signal with the data from the subscribers using a second modulation technique that is different from the first modulation technique so as to increase the capacity of the transmission system; communicating the re-modulated signal to a transceiver of the transmission system.
Claim 9
Dependent Claim
73 words
11 . A transmission system comprising: a head end; and a number of digital repeaters disposed in a geographic region to communicate signals between the head end and a number of subscribers; wherein the digital repeaters include a modulation circuit that uses a first modulation technique to communicate with the head end and a second, different modulation technique to communicate with the subsrcibers so as to increase the capacity of the transmission system.
Claim 10
Dependent Claim
73 words
11 . A transmission system comprising: a head end; and a number of digital repeaters disposed in a geographic region to communicate signals between the head end and a number of subscribers; wherein the digital repeaters include a modulation circuit that uses a first modulation technique to communicate with the head end and a second, different modulation technique to communicate with the subsrcibers so as to increase the capacity of the transmission system.
Claim 11
Dependent Claim
25 words
12 . The transmission system of claim 11 , wherein each digital repeaters comprises a sectorized antenna that divides the geographic region into three sectors.
Claim 12
Dependent Claim
26 words
13 . The transmission system of claim 11 , wherein the head end includes a number of highly directional antenna for communicating with the digital repeaters.
Claim 13
Dependent Claim
19 words
14 . The transmission system of claim 11 , wherein the first modulation technique comprises quadrature phase shift keying.
Claim 14
Dependent Claim
23 words
15 . The transmission system of claim 14 , wherein the second modulation technique comprises quadrature amplitude modulation with a 64 point constellation.
Claim 15
Dependent Claim
77 words
16 . A digital repeater for a transmission system, the digital repeater comprising: a sectorized antenna that receives upstream signals generated by subscribers using a first modulation technique; an upstream modulation circuit that converts the upstream signals to increase the spectral efficiency of the upstream signals using a second, different modulation technique; and a highly directional transmitter, coupled to the upstream modulation circuit, that transmits the converted upstream signals to a head end of the transmission system.
Claim 16
Dependent Claim
77 words
16 . A digital repeater for a transmission system, the digital repeater comprising: a sectorized antenna that receives upstream signals generated by subscribers using a first modulation technique; an upstream modulation circuit that converts the upstream signals to increase the spectral efficiency of the upstream signals using a second, different modulation technique; and a highly directional transmitter, coupled to the upstream modulation circuit, that transmits the converted upstream signals to a head end of the transmission system.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.