Combination/splitting mode of mixed transmission of dual-channel wifi signals
A signal mixing and dual-channel technology, which is applied in optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., can solve problems such as the inability to meet WiFi combined transmission, to ensure stable work, expand coverage, and overcome excessive isolation requirements Effect
Active Publication Date: 2015-08-26
广州飞瑞敖电子科技股份有限公司
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Problems solved by technology
However, for WiFi signals, the combined transmission method requires the combiner to have a high isolation, and the current typical isolation of the combiner is about 23dB to 25dB, and the best combiner on the market has an isolation of only There is 28dB, which cannot meet the requirements of WiFi combined transmission
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[0039] In order to further illustrate the essence of the present invention, the specific embodiments of the present invention are described as follows in conjunction with the accompanying drawings.
[0040] Such as figure 1 As shown, the combination / splitting method of mixed transmission of two-way WiFi signals includes: a central control machine 100 , an optical fiber line 101 , a remote radio frequency unit 102 and a radiation antenna 114 .
[0041] Wherein, the central control machine 100 is composed of a controller 103, a WiFi access point (AP1) 104, a WiFi access point (AP2) 105, a one-way isolator 106, a combiner 107, a looper 108, and a power amplifier 109 1. The photoelectric / electrical-optical conversion unit 110 is formed.
[0042] The aforementioned WiFi access point (AP1) 104 and WiFi access point (AP2) 105 provide WiFi wireless signal source and wireless network access.
[0043] For the downlink analog radio frequency signal, the aforementioned combiner 107 is u...
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The invention relates to the filed of a two-way transmission technique of a double-line WiFi signal and discloses a combiner or shunt way of double-line WiFi signal mixed transmission. The combiner or shunt way comprises a center control machine, an optical fiber circuit and a far-end radio-frequency unit; the center control machine comprises a controller, two WiFi access points, a combiner used for combining the WiFi signals, a loop machine used for separating a downlink simulate radio-frequency signal and an uplink stimulate radio-frequency signal, and one photoelectric / electrooptic conversion unit connected with an optical fiber circuit; the far-end radio-frequency unit comprises the other photoelectric / electrooptic conversion unit, an amplifying unit and a biradial antenna; and a one-way separator is arranged between the WiFi access points and the combiner and is used for reducing transmission power of the downlink stimulate radio-frequency signal of the WiFi access points to prevent another WiFi link property from degrading due to signal leakage. According to the combiner or shunt way of the double-line WiFi signal mixed transmission developed by the invention, requirements of isolation of the combiner can be reduced, and mixed transmission of the double-line WiFi signal can be achieved.
Description
technical field [0001] The present invention relates to the technical field of two-way transmission of two-way WiFi signals, in particular to a combination / splitting mode of mixed transmission of two-way WiFi signals. Background technique [0002] Using optical fiber technology to transmit WiFi radio frequency signals through optical fibers, the WiFi radio frequency signals can be wired to cover 200 meters to 5000 meters through optical fiber. However, its coverage area and signal type are related to the capacity of the signal source. Generally, we can only transmit one signal source to the remote end at a time, which leads to the limitation of this WiFi signal transmission method. [0003] In order to achieve the purpose of dual WiFi signal transmission, we use the method of signal combination, use a combiner to combine the two WiFi signals, and then separate the downlink and uplink analog RF signals through the looper, and then perform electro-optic through the analog opt...
Claims
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IPC IPC(8): H04B10/2575H04B10/291H04B7/08
CPCY02D30/70
Inventor 梅仲豪庞文凤孟学军夏子奇何振钢
Owner 广州飞瑞敖电子科技股份有限公司