System and method for wireless communication in a frequency division duplexing region
First Claim
1. A method comprising:
- co-locating a first half-duplex modem, a second half-duplex modem, a third half-duplex modem, and a fourth half duplex modem at a base station, wherein;
the first half-duplex modem is configured to transmit modulated data to a first half-duplex node located in a first sector during a first time frame on a first channel and to receive modulated data from the first half-duplex node during a second time frame on a second channel;
the second half-duplex modem is configured to receive modulated data from a second half-duplex node located in a second sector during the first time frame on the second channel and to transmit modulated data to the second half-duplex node during the first time frame on the first channel;
the third half-duplex modem is configured to transmit modulated data to a third half-duplex node located in a third sector during the first time frame on a third channel and receive modulated data from the third half-duplex node during the second time frame on a fourth channel;
the fourth half-duplex modem is configured to receive modulated data from a fourth half-duplex node located in a fourth sector during the first time frame on the fourth channel and transmit modulated data to the fourth half-duplex node during the second time frame on the third channel;
the modems are configured to transmit and receive in the first time frame substantially simultaneously, and to transmit and receive in the second time frame substantially simultaneously; and
the first time frame precedes the second time frame; and
forming a first cell coverage area for the base station with the first sector, the second sector, the third sector, and the fourth sector.
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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.
48 Citations
29 Claims
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1. A method comprising:
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co-locating a first half-duplex modem, a second half-duplex modem, a third half-duplex modem, and a fourth half duplex modem at a base station, wherein; the first half-duplex modem is configured to transmit modulated data to a first half-duplex node located in a first sector during a first time frame on a first channel and to receive modulated data from the first half-duplex node during a second time frame on a second channel; the second half-duplex modem is configured to receive modulated data from a second half-duplex node located in a second sector during the first time frame on the second channel and to transmit modulated data to the second half-duplex node during the first time frame on the first channel; the third half-duplex modem is configured to transmit modulated data to a third half-duplex node located in a third sector during the first time frame on a third channel and receive modulated data from the third half-duplex node during the second time frame on a fourth channel; the fourth half-duplex modem is configured to receive modulated data from a fourth half-duplex node located in a fourth sector during the first time frame on the fourth channel and transmit modulated data to the fourth half-duplex node during the second time frame on the third channel; the modems are configured to transmit and receive in the first time frame substantially simultaneously, and to transmit and receive in the second time frame substantially simultaneously; and the first time frame precedes the second time frame; and forming a first cell coverage area for the base station with the first sector, the second sector, the third sector, and the fourth sector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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co-locating a first full-duplex modem and a second full-duplex modem at a base station, wherein; the first full-duplex modem is configured to transmit modulated data to a first half-duplex node located in a first sector during a first time frame on a first channel, receive modulated data from the second half-duplex node located in a second sector during the first time frame on a second channel, transmit modulated data to the second half-duplex node during a second time frame on the first channel, and receive modulated data from the first half-duplex node during the second time frame on the second channel; the second full-duplex modem is configured to transmit modulated data to a third half-duplex node located in a third sector during the first time frame on a third channel, receive modulated data from a fourth half-duplex node located in a fourth sector during the first time frame on a fourth channel, transmit modulated data to the fourth half-duplex node during the second time frame on the third channel, and receive modulated data from the third half-duplex node during the second time frame on the fourth channel; the modems are configured to transmit and receive in the first time frame substantially simultaneously and to transmit and receive in the second time frame substantiality simultaneously; and the first time frame precedes the second time frame; and forming a first cell coverage area for the base station with the first sector, the second sector, the third sector, and the fourth sector. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A base station comprising:
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an antenna; and communication components coupled to the antenna and configured to cause the antenna to; transmit modulated data to a first half-duplex node during a first time frame on a first channel and to receive modulated data from the first half-duplex node during a second time frame on a second channel; receive modulated data from a second half-duplex node during the first time frame on a second channel and to transmit modulated data to the second half-duplex node during the first time frame on the first channel; transmit modulated data to a third half-duplex node during the first time frame on a third channel and receive modulated data from the third half-duplex node during the second time frame on a fourth channel; and receive modulated data from a fourth half-duplex node during the first time frame on the fourth channel and transmit modulated data to the fourth half-duplex node during the second time frame on the third channel; wherein the communication components are configured to transmit and receive in the first time frame substantially simultaneously, and to transmit and receive in the second time frame substantially simultaneously; and wherein; the first time frame precedes the second time frame; and the first half-duplex node to be located in a first sector, the second half-duplex node to be located in a second sector, the third half-duplex node to be located in a third sector, the fourth half-duplex node to be located in a fourth sector, wherein the first sector, the second sector, the third sector, and the fourth sector to form first a cell coverage area of the base station. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification