Beijing University of Posts and Telecommunications

Beijing Shoukexintong Science & Technology Co., Ltd.

Huli Shi

Zhongliang Deng

Qifeng Lai

Ziping Lv

Hemin Li

Yanpei Yu

Yaoyu Deng

Xie Yuan

Weiguo Guan

Lianming Xu

Risu Na

Wen Liu

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.

Mobile broadcast-based location determination method and apparatus

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.

Mobile broadcast signal demodulation chip for location determination

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.

Method and apparatus for generating broadcast positioning signal, and positioning method

Growing community of inventors

Beijing, China

Huli Shi