SYSTEM AND METHOD FOR WIRELESS COMMUNICATION IN A FREQUENCY DIVISION DUPLEXING REGION
2 Assignments
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Accused Products
Abstract
A method and system for using half-duplex base stations and half-duplex nodes in a Frequency Division Duplexing region to provide wireless connectivity between the half-duplex base stations and customers in multiple sectors of a cell. The method and system can use two physical channels to form two logical channels. Each logical channel shares both physical channels during alternating frames of time. The half-duplex nodes can include a millimeter-wave band frequency synthesizer configured to transmit and receive on different channels to and from the half-duplex base station. Re-use patterns of the physical channels are used for deployment of half-duplex base stations and half-duplex nodes in the FDD region to minimize co-channel interference and interference due to uncorrelated rain fade. Additional methods and systems utilize full-duplex base stations and smart antenna to communicate with the half-duplex nodes.
53 Citations
133 Claims
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74. A wireless node comprising:
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a half-duplex modem configured to alternate in demodulating incoming data and modulating outgoing data; and
an outdoor unit coupled to the half-duplex modem, the outdoor unit comprising;
an intermediate frequency module configured to alternate between up converting the outgoing data from the half-duplex modem and down converting the incoming data, a radio frequency module coupled to the intermediate frequency module and configured to alternate between up converting the outgoing data received from the intermediate frequency module and down converting the incoming data received from a base station, and a millimeter-wave band frequency synthesizer coupled to the radio frequency module and configured to alternate between transmitting the outgoing data over a first channel and receiving the incoming data over a second channel.
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75. A wireless node comprising:
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an antenna;
a radio frequency (“
RF”
) module in communication with the antenna and configured to alternate between down converting an incoming signal received by the antenna on a first radio frequency to an intermediate frequency and up converting an outgoing signal to a second radio frequency;
a first switch connected to the RF module and configured to select between routing the incoming signal away from the RF module and routing the outgoing signal to the RF module;
an intermediate frequency (“
IF”
) module coupled to the first switch and configured to alternate between down converting the incoming signal from the intermediate frequency to a base band frequency and up converting the outgoing signal from the base band frequency to the intermediate frequency;
a second switch coupled to the IF module and configured to select between routing the incoming signal away from the IF module and routing the outgoing signal to the IF module; and
a modem in communication with the second switch and configured to alternate between demodulating the incoming signal at the base band frequency and modulating the outgoing signal at the base band frequency. - View Dependent Claims (76, 77, 78)
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116. A system comprising:
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a half-duplex modem configured to modulate and demodulate data signals; and
an outdoor unit coupled to the half-duplex modem and an antenna, the outdoor unit configured to receive the incoming modulated data signal from a base station in a first time frame and to cause the antenna to transmit the outgoing modulated data signal to the base station in a second time frame different from the first time frame. - View Dependent Claims (117, 118, 119, 120, 121, 122, 123, 124, 125)
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126. A method comprising:
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receiving, by a half-duplex wireless node, an incoming modulated data signal from a base station on a first radio frequency range in a first time frame; and
transmitting by the outdoor unit an outgoing modulated data signal to the base station on a second radio frequency range in a second time frame different from the first time frame. - View Dependent Claims (127, 128, 129)
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130. An apparatus comprising:
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means for receiving an incoming modulated data signal from a base station on a first radio frequency range in a first time frame; and
means for transmitting an outgoing modulated data signal to the base station on a second radio frequency range in a second time frame different from the first time frame. - View Dependent Claims (131, 132)
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Specification