RoF system providing HD wireless communication service and signal control method for the same
First Claim
1. A Radio over Fiber (RoF) system for providing a Hybrid Duplexing (HD) wireless communication service in a wire/wireless communication system including a base station capable of establishing communication with wireless terminals and a remote station connected to the base station through an optical fiber, wherein the base station can provide a Time Division Duplexing (TDD) service and a Frequency Division Duplexing (FDD) service according to wireless service channel states of the wireless terminals, the RoF system comprising:
- the base station for transmitting and receiving each of the TDD/FDD individual signals and TDD/FDD combined signals, channel-combining downstream signals for a TDD scheme with downstream signals for an FDD scheme, and generating TDD/FDD mode control signals;
a base station donor for receiving downstream RF signals from the base station, converting the resultant signals into downstream optical signals, outputting the converted signals, and delivering upstream optical signals, which are input to the remote station from the wireless terminals, to the base station; and
the remote station for switching a corresponding duplexing mode operation according to wireless service channel states of the wireless terminals, converting the downstream optical signals transmitted from the base station donor into service RF signals, amplifying the converted service RF signals, and providing the amplified service RF signals to the wireless terminals through antennas.
1 Assignment
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Accused Products
Abstract
Disclosed is an RoF system providing an HD wireless communication service. The RoF system includes the base station for transmitting and receiving each of the TDD/FDD individual signals and TDD/FDD combined signals, channel-combining downstream signals for a TDD scheme with downstream signals for an FDD scheme, and generating TDD/FDD mode control signals; a base station donor for receiving downstream RF signals from the base station, converting the resultant signals into downstream optical signals, outputting the converted signals, and delivering upstream optical signals, which are input to the remote station from the wireless terminals, to the base station; and the remote station for switching a corresponding duplexing mode operation according to wireless service channel states of the wireless terminals, converting the downstream optical signals transmitted from the base station donor into service RF signals, amplifying the converted service RF signals, and providing the amplified service RF signals to the wireless terminals through antennas.
132 Citations
20 Claims
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1. A Radio over Fiber (RoF) system for providing a Hybrid Duplexing (HD) wireless communication service in a wire/wireless communication system including a base station capable of establishing communication with wireless terminals and a remote station connected to the base station through an optical fiber, wherein the base station can provide a Time Division Duplexing (TDD) service and a Frequency Division Duplexing (FDD) service according to wireless service channel states of the wireless terminals, the RoF system comprising:
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the base station for transmitting and receiving each of the TDD/FDD individual signals and TDD/FDD combined signals, channel-combining downstream signals for a TDD scheme with downstream signals for an FDD scheme, and generating TDD/FDD mode control signals; a base station donor for receiving downstream RF signals from the base station, converting the resultant signals into downstream optical signals, outputting the converted signals, and delivering upstream optical signals, which are input to the remote station from the wireless terminals, to the base station; and the remote station for switching a corresponding duplexing mode operation according to wireless service channel states of the wireless terminals, converting the downstream optical signals transmitted from the base station donor into service RF signals, amplifying the converted service RF signals, and providing the amplified service RF signals to the wireless terminals through antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A signal transmission control method in a wire/wireless communication system including a base station capable of establishing communication with wireless terminals, a base station donor, and a remote station connected to the base station donor through optical fibers, wherein the base station can provide a TDD transmission service and an FDD transmission service according to wireless service channel states of the wireless terminals, the signal transmission control method comprising the steps of:
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disconnecting switching of FDD upstream signal paths according to the control of the TDD/FDD mode control signals of the remote station, and connecting switching of TDD upstream signal paths according to the control of the TDD switching control signals of the remote station, when TDD upstream signals are received from the wireless terminals through an antenna of the remote station; and delivering the TDD upstream signals, passed through the TDD upstream signal paths, to the first base station receiver of the base station via the base station donor and upstream optical links. - View Dependent Claims (13, 14)
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15. A wireless network for providing hybrid duplexing wireless service, the wireless network comprising:
a plurality of base station, wherein each of the base stations communicates with each of a plurality of wireless terminals using a selected one of;
i) a time division duplexing (TDD) service;
ii) a frequency division duplexing (FDD) service; and
iii) a TDD/FDD combined service.- View Dependent Claims (16, 17, 18, 19, 20)
Specification