Method and non-transitory computer-readable storage medium and apparatus for acquiring global navigation satellite system (gnss) signals

A non-transitory computer-readable storage medium having stored therein program code, that, which loaded and executed by a processor of a baseband integrated circuit (IC) in a Global Navigation Satellite System (GNSS) receiver, cause the processor to perform a method for acquiring GNSS signals to:

• receive a search request for starting a search process with a search engine, wherein the search engine comprises a data buffer and a correlation circuitry, the data buffer is arranged operably to collect digital baseband data, the digital baseband data corresponds to an GNSS signal received by an antenna of the GNSS receiver, and the correlation circuitry is arranged operably to carry out a correlation of the digital baseband data collected in the data buffer with a locally generated Pseudo Random Noise (PRN) code;
• repeatedly obtaining supplementary information that can be used to search a space vehicle (SV);
• and
• arranging or rearranging a plurality of search tasks for driving the search engine according to the supplementary information.

An apparatus for acquiring Global Navigation Satellite System (GNSS) signals, provided in a baseband integrated circuit (IC) of a GNSS receiver, comprising:

• a search engine, comprising:
• a data buffer, arranged operably to collect digital baseband data, wherein the digital baseband data corresponds to an GNSS signal received by an antenna of the GNSS receiver;
• and
• a correlation circuitry, coupled to the data buffer, arranged operably to carry out a correlation of the digital baseband data collected in the data buffer with a locally generated Pseudo Random Noise (PRN) code;
• and
• a processor, coupled to the controller, arranged operably to:
• receive a search request for starting a search process with the search engine;
• repeatedly obtain supplementary information that can be used to search a space vehicle (SV);
• and arrange or rearrange a plurality of search tasks for driving the search engine according to the supplementary information.