Base station interference-free antenna module and WiFi base station mesh network system using the antenna module

{
  "publication_number": "US2010128670A1",
  "country": "US",
  "kind": "A1",
  "title": "Base station interference-free antenna module and WiFi base station mesh network system using the antenna module",
  "abstract": "A base station interference-free antenna module includes a plurality of high frequency transceivers respectively facing different directions, and an antenna controller electrically coupled to the high frequency transceivers. The antenna controller is electrically coupled to a signal processor in order to receive a signal transmitting/receiving request output by the signal processor to accordingly select a high frequency transceiver to transmit or receive a circularly polarized high frequency signal. The system includes two WiFi base stations, each having the base station interference-free antenna module and a signal processor, and the high frequency signals wirelessly transmitted between the WiFi base stations in the system are circularly polarized.",
  "claims": [
    "1. A base station interference-free antenna module, which is implemented in a wireless fidelity (WiFi) base station with a signal processor, and applied to a high frequency signal transmission between the WiFi base station and a second WiFi base station, the base station interference-free antenna module comprising: a plurality of high frequency transceivers facing different directions respectively; and an antenna controller electrically coupled to the high frequency transceivers respectively; wherein the antenna controller is electrically coupled to the signal processor in order to receive a signal transmitting/receiving request output by the signal processor to select a high frequency transceiver accordingly to transmit or receive a circularly polarized high frequency signal. 2. The base station interference-free antenna module as claimed in claim 1, wherein the number of high frequency transceivers ranges from one to six. 3. The base station interference-free antenna module as claimed in claim 1, wherein each of the high frequency transceivers is a patch array antenna. 4. The base station interference-free antenna module as claimed in claim 1, wherein the antenna controller comprises a circular polarization filter portion to filter the high frequency signal respectively received by the high frequency transceivers. 5. The base station interference-free antenna module as claimed in claim 1, wherein each of the high frequency transceivers comprises a rectangle plate. 6. The base station interference-free antenna module as claimed in claim 1, wherein the antenna controller comprises an electronic scan switch circuit board. 7. The base station interference-free base station antenna module as claimed in claim 1, wherein the frequency of the high frequency signal ranges between 2.3 GHz to 2.5 GHz, between 3.4 GHz to 3.6 GHz or between 5.6 GHz to 5.8 GHz. 8. A WiFi base station mesh network system, comprising: a first WiFi base station, which includes a first base station interference-free antenna module and a first signal processor, the first base station interference-free antenna module having a plurality of first high frequency transceivers facing different directions and a first antenna controller electrically coupled to the first high frequency transceivers respectively and the first signal processor, in order to select a first high frequency transceiver based on a signal transmitting/receiving request output by the first signal processor to thereby transmit or receive a circularly polarized first high frequency signal; and a second WiFi base station, which includes a second base station interference-free antenna module and a second signal processor, the second base station interference-free antenna module having a plurality of second high frequency transceivers facing different directions and a second antenna controller electrically coupled to the second high frequency transceivers and the second signal processor, in order to select a second high frequency transceiver based on a signal transmitting/receiving request output by the second signal processor to thereby transmit or receive a circularly polarized second high frequency signal; wherein one of the first high frequency transceivers faces the second WiFi base station, and one of the second high frequency transceivers faces the first WiFi base station. 9. The WiFi base station mesh network system as claimed in claim 8, wherein the first WiFi base station is electrically coupled to a remote server through a physical network line. 10. The WiFi base station mesh network system as claimed in claim 8, wherein the second antenna controller selects the second high frequency transceiver facing the first WiFi base station to receive the first high frequency signal when the first antenna controller selects the first high frequency transceiver facing the second WiFi base station to transmit the first high frequency signal. 11. The WiFi base station mesh network system as claimed in claim 10, wherein the first antenna controller selects the first high frequency transceiver facing the second WiFi base station to receive the second high frequency signal when the second antenna controller selects the second high frequency transceiver facing the first WiFi base station to transmit the second high frequency signal. 12. The WiFi base station mesh network system as claimed in claim 8, wherein each of the first high frequency transceivers is a patch array antenna, and each of the second high frequency transceivers is a waveguide slot array antenna. 13. The WiFi base station mesh network system as claimed in claim 8, wherein the first antenna controller comprises a first circular polarization filter portion to filter the first high frequency signal respectively received by the first high frequency transceivers, and the second antenna controller comprises a second circular polarization filter portion to filter the second high frequency signal respectively received by the second high frequency transceivers. 14. The WiFi base station mesh network system as claimed in claim 8, wherein the each of the first high frequency transceivers comprises a first rectangle plate, and each of the second high frequency transceivers comprises a second rectangle plate. 15. The WiFi base station mesh network system as claimed in claim 8, wherein each of the first and the second antenna controllers comprises an electronic scan switch circuit board. 16. The WiFi base station mesh network system as claimed in claim 8, wherein the frequency of the first and the second high frequency signals respectively ranges between 2.3 GHz to 2.5 GHz, between 3.4 GHz to 3.6 GHz or between 5.6 GHz to 5.8 GHz."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThe present invention relates to a base station interference-free antenna module and a wireless fidelity (WiFi) base station mesh network system and, more particularly, to a base station interference-free antenna module capable of improving wireless transmission efficiency of a high frequency signal between two WiFi base stations and the signal to noise ratio (SNR) of wireless transmission of high frequency signals, and the system using the base station interference-free antenna module to effectively reduce the deployment density of WiFi base stations while maintaining the desired quality of service (QoS), in addition to improving the efficiency of wireless transmission of high frequency signals between two WiFi base stations.\n\n2. Description of Related Art\n\nIn recent years, WiFi technology has been widely implemented in the wireless network systems of metropolitan areas, and people can access internet wherever by using a notebook computer or a personal digital assistant (PDA) with wireless capability, thereby gaining the goal of mobile broadband. As shown in FIG. 1, a typical WiFi base station mesh network system includes a first WiFi base station 11, a second WiFi base station 12 and a third WiFi base station 13. The distances between each two of the base stations range from 50 meters to 150 meters. The first WiFi base station 11 is electrically coupled to a remote server 15 (such as a digital switch) through a physical network line 14.",
  "cpc": [
    "H04W 16/28",
    "H01Q 1/246",
    "H01Q 21/205",
    "H04W 84/18",
    "H04W 88/08"
  ],
  "ipc": [
    "H04W 84/02",
    "H04W 88/08"
  ],
  "assignees": [
    "Kuang Sheng Yun Ltd"
  ],
  "inventors": [
    "Michael Chen",
    "Ming-Chen Chou"
  ],
  "filing_date": "2009-07-08",
  "publication_date": "2010-05-27",
  "priority_date": "2008-11-27",
  "application_number": "US-45828909-A",
  "family_id": "42196186",
  "cited_by_count": 4,
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}