US 2012/0236906 A1Published application

Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting

AssigneeCorning MobileAccess Ltd

InventorsYehuda Binder, Ami Hazani

Life of this patent

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Abstract

Coverage for a wireless network is improved using a frequency shifting scheme. A wireless signal in a frequency band is shifted to another band, and carried in the shifted band to another location where the signal is shifted back to the original frequency band. The frequency shifting may utilize frequency shifting schemes such as mixer/filter and heterodyne. The wireless signal can be frequency shifted by converting it to other representing signals (such as I/Q components) and forming the frequency-shifted signal from the representations. The transmission medium may use dedicated wiring or existing service wiring in a residence or building, including LAN, telephone, AC power and CATV wiring. The system may be enclosed as a stand-alone unit, housed in integrated form as part of a service outlet or as a snap-on/plug-in module.

Claims19

Dependent claims

An apparatus for frequency shifting of a first spread-spectrum signal, the apparatus comprising:

a first port for receiving the first spread-spectrum signal in a first frequency band;
a first I/Q demodulator coupled to the first port to receive the first spread-spectrum signal from the first port, for deriving the I and Q component signals of the first spread spectrum signal;
a first I/Q modulator coupled to the first I/Q demodulator to receive the first spread spectrum signal I and Q component signals, the first I/Q modulator being operative to reconstruct the first spread-spectrum signal and to frequency shift the first spread-spectrum signal to a second frequency band;
a second port coupled to the first I/Q modulator to receive the frequency shifted signal from the first I/Q modulator;
a third port for receiving the second spread-spectrum signal in the second frequency band;
a second I/Q demodulator coupled to the third port to receive the second spread-spectrum signal from the third port;
a first filter coupled to the first port for substantially passing only signals in the first frequency band;
a first threshold detector coupled to the first filter for detecting the presence of a signal in the first frequency band;
and
a second filter coupled to the third port for substantially passing only signals in the second frequency band;
and a second threshold detector coupled to the second filter for detecting the presence of a signal in the second frequency band.

8 more elements

An apparatus for coupling a wireless signal to a plurality of wired mediums, for use with a first wireless unit having an antenna connector and operative to receive and transmit the wireless signal in a wireless frequency band, a second wireless unit, and with a plurality of distinct wired mediums, each operative for conductive signals in a wired frequency band, the apparatus comprising:

a coaxial connector for connecting to the antenna connector of the wireless unit for receiving and transmitting the wireless signal in the wireless frequency band;
a plurality of wiring connectors each for connecting to a distinct wired medium;
a frequency shifter connected for frequency shifting between the wireless frequency band and the wired frequency band;
a wired band splitter connected to the frequency shifter and having multiple ports, each port connected to a wiring connector, the splitter being operative to share a signal in the wired frequency band with all devices connected thereto;
an equalizer between one of the wiring connectors and the wired band splitter for compensating for the frequency characteristics of the wired medium;
an antenna for receiving and transmitting the wireless signal in the wireless frequency band;
and an RF splitter connected between the antenna, the attenuator, and the coaxial connectors;
and
between at least one of the wiring connectors and the wired band splitter a filter for substantially passing only signals in the wired frequency band and a signal transformer for providing isolation between the apparatus and the wired medium.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/440,237Filed 5 Apr 2012
Priority: 11 Jan 2006
Published: 20 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04B 7/15542
Control of operation parameters of a relay station to exploit the physical medium: selecting at relay station its transmit and receive resources
H04B 7/15528
Ground-based stations: control of operation parameters of a relay station to exploit the physical medium
H04B 7/2606
Arrangements for wireless physical layer control: arrangements for base station coverage control, e.g. by using relays in tunnels
H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA

Family

Application11/329,270Division · filed 11 Jan 2006
Application12/885,369Continuation · filed 17 Sep 2010
Application13/440,237Continuation
Application12/885,369Division
US 2007/0173202 A1Published application
US 2011/0206088 A1Published application
US 7,813,451 B2Related patent
US 8,184,681 B2Related patent
US 8,514,915 B2Related patent
US 2012/0236906 A1This patent

From the US filing history. Foreign family members aren’t listed.