摘要:
The present invention, pertaining to the field of wireless communications, discloses a mobile broadcast signal demodulation chip for location. The demodulation chip includes a reception and demodulation module and a measurement module, where the reception and demodulation module is configured to demodulate a location spreading signal inserted in the header of a time slot or in the header of a transmission frame of a received mobile broadcast signal to acquire navigation message information; and the measurement module is configured to measure and acquire location characteristic parameters. The demodulation chip is not only capable of demodulating broadcast data in a mobile broadcast signal, but also capable of demodulating a location spreading signal inserted in the header of a time slot or in the header of a transmission frame of a received mobile broadcast signal to acquire navigation message information and location characteristic parameters, thereby effectively improving location accuracy.
摘要:
Disclosed is a mobile broadcast signal demodulation chip for location. The demodulation chip includes a reception demodulation and module and a measurement module, where the reception and demodulation module is configured to demodulate a spread spectrum signal for positioning inserted in the header of a time slot or in the header of a transmission frame of a received mobile broadcast signal to acquire navigation message information; and the measurement module is configured to measure and acquire location characteristic parameters. The demodulation chip is not only capable of demodulating broadcast data in a mobile broadcast signal, but also capable of demodulating a spread spectrum signal for positioning-inserted in the header of a time slot or in the header of a transmission frame of a received mobile broadcast signal to acquire navigation message information and location characteristic parameters, thereby effectively improving location accuracy.
摘要:
The present invention, pertaining to the field of communications technologies, discloses a locating method and a locating system. The method includes: receiving a locating request and a locating feature parameter from a terminal, where the locating feature parameter is acquired by demodulating a locating spread spectrum signal inserted in a timeslot header or a transmission frame header of a mobile broadcast signal after the terminal receives the mobile broadcast signal; and locating the terminal by using a grid-based feature parameter matching algorithm according to the locating feature parameter. According to the present invention, a locating feature parameter that is acquired after a terminal demodulates a received mobile broadcast signal is received from the terminal; and the terminal is located by using a grid-based feature parameter matching algorithm according to the locating feature parameter. This, on the premise of not affecting normal receiving and demodulation of mobile broadcast signals, not only achieves an effect of real-time and high-precision location and implements wide-area high-precision location and navigation of mass of terminals, but also implements integration of a broadcast system and a mobile communication system.
摘要:
The present invention, pertaining to the field of wireless communications, discloses a mobile broadcast-based method and apparatus that includes: receiving a mobile broadcast signal; demodulating a location spreading signal inserted in the header of a time slot or a transmission frame of the mobile broadcast signal to acquire navigation message information, and measuring and acquiring location characteristic parameters, wherein the navigation message information includes the identifier of a mobile broadcast station, and the location characteristic parameters correspond to the identifier; and acquiring location data according to the location characteristic parameters and the navigation message information. According to the method and apparatus, a location spreading signal is carried in the header of a time slot or in the header of a transmission frame of the mobile broadcast signal, navigation message information is acquired by demodulating the location spreading signal, and location characteristic parameters are acquired by measurement to acquire location data.
摘要:
The present invention, pertaining to the field of wireless communications, discloses a mobile broadcast-based method and apparatus that includes: receiving a mobile broadcast signal; demodulating a location spreading signal inserted in the header of a time slot or a transmission frame of the mobile broadcast signal to acquire navigation message information, and measuring and acquiring location characteristic parameters, wherein the navigation message information includes the identifier of a mobile broadcast station, and the location characteristic parameters correspond to the identifier; and acquiring location data according to the location characteristic parameters and the navigation message information. According to the method and apparatus, a location spreading signal is carried in the header of a time slot or in the header of a transmission frame of the mobile broadcast signal, navigation message information is acquired by demodulating the location spreading signal, and location characteristic parameters are acquired by measurement to acquire location data.
摘要:
The present invention, pertaining to the field of mobile broadcast television technologies, discloses a method and apparatus for generating a broadcast positioning signal, and a positioning method. According to the present invention, a broadcast positioning signal is generated by inserting a spread spectrum signal and a first spread spectrum signal in an orthogonal frequency-division multiplexing (OFDM) signal, and a receiver is positioned according to broadcast positioning signals from at least three different senders.
摘要:
The present invention, pertaining to the field of mobile broadcast television technologies, discloses a method and apparatus for generating a broadcast positioning signal, and a positioning method. According to the present invention, a broadcast positioning signal is generated by inserting a spread spectrum signal and a first spread spectrum signal in an orthogonal frequency-division multiplexing (OFDM) signal, and a receiver is positioned according to broadcast positioning signals from at least three different senders.