IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0474584
(2009-05-29)
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등록번호 |
US-8290551
(2012-10-16)
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발명자
/ 주소 |
- Landesman, Lior
- Marom, Erez
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
18 인용 특허 :
4 |
초록
▼
Wireless systems and methods establish an optimal wireless communication link by efficiently positioning an antenna module to receive/transmit the most effective signal. An antenna module scans and rotates and receives data such as available networks and the qualities of received signals. Received n
Wireless systems and methods establish an optimal wireless communication link by efficiently positioning an antenna module to receive/transmit the most effective signal. An antenna module scans and rotates and receives data such as available networks and the qualities of received signals. Received networks are analyzed, recorded and mapped to antenna variables such as azimuth, elevation and polarity. Automatic or manual selection of a wireless network is based upon antenna variables, qualities of received network signals and predefined conditions. If desired, a more refined antenna position is obtained by the addition of spiral antenna rotations and additional recordings of received data are mapped to antenna elevation, azimuth and polarity. In the event the measured effective signal reception diminishes, the center destination of the spiral path shifts and the process repeats until the highest effective signal reception is found. The disclosed technique acknowledges the realities of complicated modern day signal topography.
대표청구항
▼
1. A method to position a wireless antenna module to receive from or transmit to a network, the method comprising: a) positioning the wireless antenna module to a first initial position, the wireless antenna module comprising an antenna array having a main beam with a beam width;b) rotating the main
1. A method to position a wireless antenna module to receive from or transmit to a network, the method comprising: a) positioning the wireless antenna module to a first initial position, the wireless antenna module comprising an antenna array having a main beam with a beam width;b) rotating the main beam of the antenna array substantially azimuthally 360 degrees in steps of N degrees, wherein N is a fixed or variable number; i) for each step of N degrees the main beam of the antenna array is rotated, performing a scan to detect available networks; andii) for each of the detected available networks, recording, in a database, an entry associated with the network wherein the entry comprises an azimuth angle, a name, and a signal quality parameter;c) selecting a network from the detected available networks by: i) manually selecting a desired network from the detected available networks in the database; orii) automatically selecting the desired network from the detected available networks in the database using a plurality of predefined parameters comprising a network name, a network profile, an encryption status, and a signal quality parameter;d) determining a new position for the main beam by: i) reviewing entries recorded in the database, and using a closed loop control structure to move the main beam of the antenna array to the new position corresponding to a substantially maximum signal quality parameter recorded in the database for the selected network; orii) moving the main beam of the antenna array in steps of N degrees, recording at each step, a signal quality parameter and comparing the recorded signal quality parameter to a maximum value in the database, and if the recorded signal quality parameter is equal to or larger than the maximum value, stopping at the corresponding step as the new position; ande) connecting the wireless antenna module to the selected network. 2. The method of claim 1, further comprising: recording additional entries into the database for the selected wireless network by: i) positioning the antenna array to a second initial position different from the first initial position; andii) rotating the main beam of the antenna array in a spiral path in steps of N degrees, recording in the database, at each step, a signal quality parameter, and information encoding a position of the main beam. 3. The method of claim 1, wherein said moving the main beam of the antenna array in steps of N degrees is along a spiral path and the spiral path is determined by: obtaining a gradient output toward a global minimum value by applying an error function to the signal quality parameter being recorded along the spiral path already traversed and the recorded additional entries in the database; anddetermining a subsequent step along the spiral path by using the gradient output. 4. The method of claim 1, wherein said moving the main beam of the antenna array in steps of N degrees is along a linear path. 5. The method of claim 1, wherein the signal quality parameter comprises at least one of a signal strength, a network bandwidth, or a wireless link speed, wherein the signal strength is at least one of a signal to noise ratio (SNR), a received signal strength indicator (RSSI), or a carrier to interference noise ration (CINR). 6. A method for wireless communications, the method comprising: a) positioning an antenna module to an initial position, the antenna module comprising an antenna array having a main beam;b) spinning the main beam of the antenna array substantially one full rotation while detecting wireless networks and recording signal qualities of the detected wireless networks as entries into a database, each entry being mapped to a corresponding azimuthal position of the main beam;c) selecting a detected wireless network to connect based upon the recorded entries in the database and predefined user parameters;d) moving the main beam of the antenna array along a spiral or linear path wherein the gradient of the spiral path points to an improved reception position for the selected wireless network, and wherein the spiral or linear path has a projected ending point;e) in the event that a lower signal quality of the selected wireless network is found along the spiral path, shifting the projected ending point by a distance substantially proportional to the measured drop in signal quality; andf) moving the main beam of the antenna array along the spiral or linear path until the signal quality of the selected wireless network stops improving. 7. The method of claim 6, wherein the recorded signal qualities comprise at least one of a signal strength or a wireless link speed.
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