Optical access network of wavelength division method and passive optical network using the same
First Claim
1. A wavelength division multiplexed optical access network, comprising:
- a central office for multiplexing first optical signals for wire communication and second optical signals for wireless communication;
a remote node, coupled to the central office via an optical fiber, for de-multiplexing a multiplexed optical signal received from the central office;
a plurality of subscribers coupled to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from the de-multiplexed first optical signals; and
a plurality of radio access units coupled to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal.
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Accused Products
Abstract
A wavelength division multiplexed optical access network including a central office for multiplexing first optical signals used for transmitting a high-speed wire data service to a subscriber side and second optical signals used for transmitting a wireless data service to a remote subscriber terminal, a remote node connected to the central office through an optical fiber and for de-multiplexing a multiplexed optical signal received from the central office, a plurality of subscribers connected to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from among the de-multiplexed first optical signals, and a plurality of radio access units connected to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from among the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal.
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Citations
25 Claims
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1. A wavelength division multiplexed optical access network, comprising:
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a central office for multiplexing first optical signals for wire communication and second optical signals for wireless communication;
a remote node, coupled to the central office via an optical fiber, for de-multiplexing a multiplexed optical signal received from the central office;
a plurality of subscribers coupled to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from the de-multiplexed first optical signals; and
a plurality of radio access units coupled to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A passive optical access network employing a wavelength locking method, the passive optical access network comprising:
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a central office for multiplexing first downstream optical signals for wire communication and second downstream optical signals for wireless communication into downstream optical signals to be output;
a remote node, coupled to the central office via an optical fiber, for de-multiplexing a multiplexed downstream optical signal received from the central office, the remote node outputting multiplexed upstream optical signals to the central office;
a plurality of subscribers coupled to the remote node, each subscriber receiving the de-multiplexed first optical signal having a corresponding wavelength from the de-multiplexed first optical signals and outputting a wavelength-locked upstream optical signal to the central office through the remote node; and
a plurality of radio access units coupled to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from among the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification