IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0849687
(2001-05-04)
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발명자
/ 주소 |
- Rafie, Manouchehr S.
- Lu, Jun
- Fu, Dengwei
- Shah, Tushar
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
44 인용 특허 :
30 |
초록
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A method for an adaptive equalization apparatus in a multiple-link hopping radio system includes hopping among a plurality of radio links to receive variable-length bursts of radio signals on the plurality of radio links and equalizing amplitude and phase variations of a slow channel for each radio
A method for an adaptive equalization apparatus in a multiple-link hopping radio system includes hopping among a plurality of radio links to receive variable-length bursts of radio signals on the plurality of radio links and equalizing amplitude and phase variations of a slow channel for each radio link from a received burst on the radio link. Further, the method includes storing the estimated tap coefficients pertinent to each radio link and using the tap weights of the current burst of the radio link to reliably pre-compensate the channel amplitude and phase distortion of a next received burst on the radio link.
대표청구항
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A method for an adaptive equalization apparatus in a multiple-link hopping radio system includes hopping among a plurality of radio links to receive variable-length bursts of radio signals on the plurality of radio links and equalizing amplitude and phase variations of a slow channel for each radio
A method for an adaptive equalization apparatus in a multiple-link hopping radio system includes hopping among a plurality of radio links to receive variable-length bursts of radio signals on the plurality of radio links and equalizing amplitude and phase variations of a slow channel for each radio link from a received burst on the radio link. Further, the method includes storing the estimated tap coefficients pertinent to each radio link and using the tap weights of the current burst of the radio link to reliably pre-compensate the channel amplitude and phase distortion of a next received burst on the radio link. rst wireless modem, processing the wireless carrier signal to produce the serial data and the flow control signal, and transmitting the serial data and the flow control signal across a second serial data interface, wherein the modems are Cellular Digital Packet Data modems. 3. The system of claim 1, further comprising a data collection device for collecting the data to be borne by the first interface. 4. The system of claim 1, further comprising a computer for receiving the data from the second interface. 5. A system for wireless transmission of data, comprising: a first RS232 serial data interface for outputting serial data; a first wireless CDPD modem operatively connected to the first interface and comprising: means for processing serial data received from the first interface, the data comprising RS232 data and RS232 flow control signals, means for encapsulating the data and the signals in a CDPD courier, and means for transmitting the CDPD courier; and a second wireless CDPD modem for receiving the CDPD courier from the first modem, the second modem being operatively connected to a second RS232 serial data interface and comprising means for processing the CDPD courier and transmitting the data across the second interface. 6. The system of claim 5, further comprising a data collection device for collecting the data to be output by the first interface. 7. The system of claim 5, further comprising a computer for receiving the data from the second interface. 8. A method of transmitting data, comprising: collecting data to be transmitted; transmitting the data and a flow control signal across a first serial data interface to a first wireless modem; encapsulating the data and the flow control signal in a wireless carrier signal; transmitting the carrier signal from the first modem to a second wireless modem; processing the carrier signal to obtain the data and the flow control signal; transmitting the data and the flow control signal from the second modem across a second serial data interface; and receiving the data from the second interface, wherein the first interface is an RS232 serial data interface and the flow control signal includes RTS or CTS. 9. A method of transmitting data, comprising: collecting data to be transmitted; transmitting the data and a flow control signal across a first serial data interface to a first wireless modem; encapsulating the data and the flow control signal in a wireless carrier signal; transmitting the carrier signal from the first modem to a second wireless modem; processing the carrier signal to obtain the data and the flow control signal; transmitting the data and the flow control signal from the second modem across a second serial data interface; and receiving the data from the second interface, wherein the first modem is a Cellular Digital Packet Data modem. 10. A method of transmitting data, comprising: collecting data to be transmitted; transmitting the data and a flow control signal across a first serial data interface to a first wireless modem; encapsulating the data and the flow control signal in a wireless carrier signal; transmitting the carrier signal from the first modem to a second wireless modem; processing the carrier signal to obtain the data and the flow control signal; transmitting the data and the flow control signal from the second modem across a second serial data interface; and receiving the data from the second interface, wherein the second modem is a Cellular Digital Packet Data modem. 11. A method of transmitting data, comprising: collecting data to be transmitted; transmitting the data and a flow control signal across a first serial data interface to a first wireless modem; encapsulating the data and the flow control signal in a wireless carrier signal; transmitting the carrier signal from the first modem to a second wireless modem; processing the carrier signal to obtain the data and the flow control signal; tran smitting the data and the flow control signal from the second modem across a second serial data interface; and receiving the data from the second interface, wherein the second interface is an RS232 serial data interface. 12. A method for wireless transmission of data, comprising: transmitting the data across a first RS232 serial data interface to a first wireless CDPD modem; encapsulating the data and a flow control signal from the first RS232 serial data interface in a CDPD courier; transmitting the CDPD courier to a second wireless CDPD modem; obtaining the data and the flow control signal from the CDPD courier; delivering data and the flow control signal to a second RS232 serial data interface. 13. The method of claim 12, wherein the first modem is a Cellular Digital Packet Data modem. 14. The method of claim 12, wherein the second modem is a Cellular Digital Packet Data modem. 15. The method of claim 12, further comprising collecting the data to be output with a monitoring device. 16. The method of claim 12, wherein delivering the data to the second interface comprises transmitting the data to a computer. 17. The method of claim 12, further comprising checking the validity of the transmitted data with a cyclic redundancy check. 18. A wireless modem, comprising: means for processing serial data and a flow control signal from a serial data interface; means for encapsulating the serial data and the flow control signal in a wireless carrier signal; and means for transmitting the data, wherein the serial data interface includes an RS232 serial data interface and the wireless carrier signal includes a Cellular Digital Packet Data (CDPD) courier. 19. A method of transmitting data, comprising: processing serial data and a flow control signal from a serial data interface; encapsulating the serial data and the flow control signal in a wireless carrier signal; and transmitting the data, wherein the serial data interface includes an RS232 serial data interface and the wireless carrier signal includes a Cellular Digital Packet Data (CDPD) courier. 20. A wireless modem, comprising: means for processing a carrier signal encapsulating serial data and a flow control signal; and means for outputting the serial data and the flow control signal to a serial data interface, wherein the serial data interface includes an RS232 serial data interface and the wireless carrier signal includes a Cellular Digital Packet Data (CDPD) courier. 21. A method of transmitting data, comprising: processing a carrier signal encapsulating serial data and a flow control signal; and outputting the serial data and the flow control signal to a serial data interface, wherein the serial data interface includes an RS232 serial data interface and the wireless carrier signal includes a Cellular Digital Packet Data (CDPD) courier. 22. A system for wireless transmission of data, comprising: a first wireless modem operatively connected to a first serial data interface bearing serial data and a flow control signal and configured for encapsulating the serial data and the flow control signal in a wireless carrier signal and transmitting the wireless carrier signal; and a second wireless modem configured for receiving the wireless carrier signal from the first wireless modem, processing the wireless carrier signal to produce the serial data and the flow control signal, and transmitting the serial data and the flow control signal across a second serial data interface, wherein the first serial data interface further bears another flow control signal, and the first modem is further configured for encapsulating the other flow control signal in the wireless carrier signal. 23. A method of transmitting data, comprising: collecting data to be transmitted; transmitting the data and a flow control signal across a first serial data interface to a first wireless modem; encapsulating the data and the flow control signal in a wireless carrier signal; transmitting the carrier signal from the first modem to a second wireless modem; processing the carrier signal to obtain the data and the flow control signal; transmitting the data and the flow control signal from the second modem across a second serial data interface; receiving the data from the second interface; transmitting another flow control signal across the first serial data interface; and encapsulating the other flow control signal in the wireless carrier signal. 24. The method of claims 12, further comprising encapsulating another flow control signal from the first RS232 serial data interfaces in the CDPD courier. 25. A method of transmitting data, comprising: processing serial data and a flow control signal from a serial data interface; encapsulating the serial data and the flow control signal in a wireless carrier signal; and transmitting the data; processing another flow control signal from the serial data interface; and encapsulating the other flow control signal in the wireless carrier signal. 26. A wireless modem, comprising: means for processing a carrier signal encapsulating serial data and a flow control signal; and means for outputting the serial data and the flow control signal to a serial data interface, wherein the means for processing is further configured for processing another flow control signal, and the means for outputting is further configured for outputting the other flow control signal. 27. A method of transmitting data, comprising: processing a carrier signal encapsulating serial data and a flow control signal; outputting the serial data and the flow control signal to a serial data interface; processing the carrier signal to extract another flow control signal; and outputting the other flow control signal to the serial data interface.
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