WO2018192207A1 - Dispositif, procédé de recherche de signal de satellite et terminal mobile - Google Patents

Dispositif, procédé de recherche de signal de satellite et terminal mobile Download PDF

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Publication number
WO2018192207A1
WO2018192207A1 PCT/CN2017/109186 CN2017109186W WO2018192207A1 WO 2018192207 A1 WO2018192207 A1 WO 2018192207A1 CN 2017109186 W CN2017109186 W CN 2017109186W WO 2018192207 A1 WO2018192207 A1 WO 2018192207A1
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WO
WIPO (PCT)
Prior art keywords
satellite signal
search
satellite
searching
module
Prior art date
Application number
PCT/CN2017/109186
Other languages
English (en)
Chinese (zh)
Inventor
郑勇
金志军
张立新
魏科文
Original Assignee
深圳市沃特沃德股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 深圳市沃特沃德股份有限公司 filed Critical 深圳市沃特沃德股份有限公司
Publication of WO2018192207A1 publication Critical patent/WO2018192207A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
    • H04B7/18573—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Satellite signal search method device and mobile terminal
  • the present invention relates to the field of communications technologies, and in particular, to a satellite signal search method, apparatus, and mobile terminal.
  • a satellite mobile communication terminal transmits a signal through a satellite distributed in space to implement a satellite communication function. Satellite signals are easily covered by large buildings or mountains. In this case, there is no satellite signal or the satellite signal is weak, which makes the satellite communication function of the satellite mobile communication terminal unavailable. The satellite communication unit of the satellite mobile communication terminal will continue to search for satellite signals and perform location update to try to restore satellite communication functions.
  • the search process consumes a lot of power, and the location update process needs to send data packets, which consumes more power, thereby greatly increasing system power consumption, reducing endurance, and shortening the standby time of the terminal.
  • the main object of the present invention is to provide a satellite signal search method, device and mobile terminal, which aim to reduce system power consumption and improve endurance.
  • the present invention provides a satellite signal search method, the method comprising the following steps: [0006] searching for a first satellite signal;
  • the power consumption of searching the first satellite signal is greater than the power consumption of searching the second satellite signal.
  • the first satellite signal is a GEO satellite signal
  • the second satellite signal is a MEO satellite signal
  • the searching for the second satellite signal comprises: [0012] acquiring local ephemeris data, and controlling the satellite positioning system to search for the MEO satellite signal according to the local ephemeris data.
  • the method further includes:
  • the preset time is 5 to 15 minutes.
  • the method further includes:
  • the search frequency of the second satellite signal is greater than or equal to a search frequency of the first satellite signal.
  • Embodiments of the present invention provide a satellite signal search apparatus, where the apparatus includes a first control module, a second control module, a first search module, and a second search module, where the first search module is used for searching. a first satellite signal, the second search module is configured to search for a second satellite signal, wherein:
  • the first control module is configured to: when the first satellite signal search fails, control the first search module to pause searching for the first satellite signal, and control the second search module to search for the Second satellite signal;
  • the second control module is configured to: when the second satellite signal search succeeds, control the first search module to resume searching for the first satellite signal;
  • the power consumption of searching the first satellite signal is greater than the power consumption of searching the second satellite signal.
  • the second search module is a satellite positioning system
  • the first control module is configured to:
  • the first search module is configured to:
  • the first search module does not search for the first satellite signal ⁇ within the preset time, it is determined that the first satellite signal search fails.
  • the second control module is further configured to: when the second satellite signal search succeeds, control the second search module to stop searching for the second satellite signal.
  • the embodiment of the invention further provides a mobile terminal, including: [0029] one or more processors;
  • one or more applications wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications being It is configured to perform the aforementioned satellite signal search method.
  • a satellite signal search method provided by an embodiment of the present invention, in an environment where satellite signals are weak
  • the first satellite signal search fails ⁇ suspend searching for the first satellite signal with high power consumption, and search for the second satellite signal with low power consumption to detect whether the satellite signal is recovered, when searching for the second satellite Signal ⁇ , it is determined that the satellite signal is recovered, and then the search for the first satellite signal is resumed, thereby generally reducing the average search frequency of the first satellite signal with high search power consumption, reducing system power consumption, improving endurance, and extending The standby time of the terminal.
  • FIG. 1 is a flow chart of an embodiment of a satellite signal search method of the present invention
  • FIG. 2 is a block diagram showing an example of a satellite mobile communication terminal to which a satellite signal search method according to an embodiment of the present invention is applied;
  • FIG. 3 is a block diagram showing an embodiment of a satellite signal search device of the present invention.
  • terminal and terminal device used herein include both a device of a wireless signal receiver, a device having only a wireless signal receiver without a transmitting capability, and a receiving and receiving device.
  • Such a device may comprise: a cellular or other communication device having a single line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Persona 1 Communications Service), which may combine voice, Data processing, fax and/or data communication capabilities; PDA (Personal Digital Assistant), which can include radio frequency receivers, pagers, Internet/Intranet access, web browsers, notepads, calendars and/or GPS ( Global Positioning System, Receiver; Conventional laptop and/or palmtop computer or other device having a conventional laptop and/or palmtop computer or other device that includes and/or includes a radio frequency receiver.
  • PCS Personala 1 Communications Service
  • PDA Personal Digital Assistant
  • terminal may be portable, transportable, installed in a vehicle (aviation, sea and/or land), or adapted and/or configured to operate locally, and/or Run in any other location on the Earth and/or space in a distributed fashion.
  • the "terminal” and “terminal device” used herein may also be a communication terminal, an internet terminal, a music/video playback terminal, For example, it may be a PDA, a MID (Mobile Internet Device), and/or a mobile phone with music/video playback function, or a smart TV, a set top box, or the like.
  • the method and device for searching a satellite signal may be applied to any terminal device that can search for at least two types of satellite signals, in particular, a satellite mobile communication terminal, which may be based on an Android system or other systems.
  • a satellite mobile communication terminal which may be based on an Android system or other systems.
  • the following is a detailed description of the application to the satellite mobile communication terminal.
  • FIG. 1 an embodiment of a satellite signal searching method according to the present invention is provided, and the method includes the following steps.
  • step S12 searching for the first satellite signal. It is judged whether the first satellite signal has failed to search. When the first satellite signal search fails, step S12 is performed.
  • the satellite mobile communication terminal searches for the first satellite signal with a certain search frequency, and when the first satellite signal ⁇ is not searched within the preset time, it is determined that the first satellite signal search fails.
  • the search frequency can be set according to actual needs, preferably set to search every 10-30 seconds (ie, the interval between two consecutive searches), for example: the satellite mobile communication terminal searches for the first satellite signal every 20 seconds.
  • the preset time can also be set according to actual needs, preferably within a range of 5 to 15 minutes, for example: When the first satellite signal is not searched within 10 minutes, the satellite mobile communication terminal determines the first satellite signal search. failure.
  • the first satellite signal and the second satellite signal are two different satellite signals, and the power consumption of searching for the first satellite signal is greater than the power consumption of searching for the second satellite signal, in other words, The search power consumption of a satellite signal is greater than the search power consumption of the second satellite signal.
  • the first satellite signal is a main satellite signal, the satellite mobile communication terminal searches for the first satellite signal in a default state; the second satellite signal is an auxiliary satellite signal, and the satellite mobile communication terminal searches for the second satellite signal if necessary, for example, the present invention
  • the satellite signal is weak or there is no satellite signal, it is possible to detect whether the satellite signal is recovered by searching the second satellite signal.
  • the satellites mainly include Geosynchronous Eearth Orbit (GE) satellites, Medium Earth Orbit (MEO) satellites, Low Earth Orbit (LEO) satellites, etc., and the corresponding satellite signals are GEO. Satellite signals, ME0 satellite signals and LEO satellite signals. Searching for the power consumption of the aforementioned satellite signals is usually related to the distance between the corresponding satellite and the Earth, that is, the distance from the Earth The farther satellites search for their signals also consume more power. For example, the distance between the GEO satellite and the Earth is 10,000 kilometers larger than the distance between the MEO satellite and the Earth, resulting in the GEO satellite signal being weaker than the MEO satellite signal.
  • the acceptance signal sensitivity of the Tiantong satellite (which belongs to the GEO satellite) is -124dbm, GPS satellite ( The sensitivity of the received signal belonging to the MEO satellite is -160dbm, and the current of the satellite mobile communication terminal searching for the Tiantong satellite signal is more than four times larger than the current of the Global Positioning System (GPS) satellite signal. Therefore, the aforementioned satellite signals are ranked as GEO satellite signals, ME 0 satellite signals, and LEO satellite signals in descending order of search power consumption.
  • the second satellite signal may be a MEO satellite signal or a LEO satellite signal.
  • the first satellite signal is a MEO satellite signal
  • the second satellite signal is a LE 0 satellite signal.
  • the first satellite signal is a GEO satellite signal, which is used to implement a satellite communication function of the satellite mobile communication terminal;
  • the second satellite signal is a MEO satellite signal, which is used to implement a satellite positioning function of the satellite mobile communication terminal.
  • step S13 Suspend searching for the first satellite signal and searching for the second satellite signal. It is judged whether the second satellite signal is searched successfully, and when the second satellite signal search succeeds, step S13 is performed.
  • step S12 when the first satellite signal search fails, indicating that the current environmental satellite signal is weak or there is no satellite signal (such as indoor), the satellite mobile communication terminal suspends searching for the first satellite signal with a large search power, and then The search for a second satellite signal with a small search power reduces power consumption.
  • the satellite mobile communication terminal continuously searches for the second satellite signal at a certain search frequency until the second satellite signal is searched. It is equivalent to detecting whether the environment changes by searching the second satellite signal, and whether the satellite signal is restored.
  • the search frequency of the second satellite signal is greater than or equal to the search frequency of the first satellite signal, and is set to search once every 30 seconds, such as: the satellite mobile communication terminal searches for the second every 20 seconds. satellite signal.
  • the satellite mobile communication terminal acquires local ephemeris data, and controls the satellite positioning system to quickly search for the MEO satellite signal according to the local ephemeris data, generally about 10 seconds. Get search results to further reduce power consumption.
  • the satellite positioning system such as GPS, Beidou satellite navigation system (BeiDou Navigation Satellite
  • the satellite mobile communication terminal starts GPS, downloads local ephemeris data from the GPS ephemeris server through a mobile communication network (such as an LTE network) or a WIFI network, and the GPS quickly searches for MEO satellite signals according to local ephemeris data.
  • a mobile communication network such as an LTE network
  • WIFI network such as a Wi-Fi network
  • step S13 when the second satellite signal is searched successfully, it indicates that the satellite signal of the current environment has been recovered, such as from indoor to outdoor, the satellite signal is improved, and the satellite signal is strong, and then the satellite mobile communication terminal resumes the search.
  • the first satellite signal, and the ⁇ resume its satellite communication function.
  • the process returns to step S12, and the cycle is repeated.
  • the satellite mobile communication terminal can also stop searching for the second satellite signal to reduce power consumption. For example, when the second satellite signal search is successful, the satellite mobile communication terminal turns off the GPS, and the GPS stops searching for the second satellite signal.
  • three states may be defined for a satellite communication unit of a satellite mobile communication terminal (hereinafter referred to as a terminal), namely, a working state, a standby state, and a sleep state, where: voice and data services are performed in a working state, In the standby state, the search star (that is, the search satellite signal) and the heartbeat packet are fixed, and neither the search star nor the heartbeat packet is in the sleep state.
  • the operating state consumes the most power, up to 2W; the standby state consumes less than 10mA; the sleep state consumes the lowest, which is less than 2mA. All three states can be switched by software control.
  • the terminal controls the satellite communication unit to enter the sleep state through software, no longer searches for the GEO satellite signal, and can define the terminal to be in the "" Indoor "state; when the terminal is in the "indoor” state, the terminal starts the GPS through the software to obtain the local ephemeris data, and the GPS searches for the MEO satellite signal according to the local ephemeris data; when the ME 0 satellite signal cannot be searched, the terminal is on the display The MEO satellite signal icon with X is displayed, indicating that the MEO satellite signal is not found.
  • the terminal controls the satellite communication unit to enter the sleep state through software, no longer searches for the GEO satellite signal, and can define the terminal to be in the "" Indoor "state; when the terminal is in the "indoor” state, the terminal starts the GPS through the software to obtain the local ephemeris data, and the GPS searches for the MEO satellite signal according to the local ephemeris data; when the ME 0 satellite signal cannot be searched, the terminal is on the display The MEO satellite signal icon
  • the terminal will continuously search for the MEO satellite signal at a certain search frequency, for example, every 20 seconds, until the MEO satellite signal position is searched.
  • a certain search frequency for example, every 20 seconds.
  • the average satellite frequency and the position update frequency of the satellite communication unit are reduced, thereby reducing system power consumption and prolonging the standby time of the terminal.
  • the satellite mobile communication terminal includes a Long Term Evolution (LTE) baseband and application processing module 10,
  • the wireless antenna 16 the radio frequency module 15, the power management module 17, the storage module 18, the display module 19, the GPS/WIFI module 13, the GPS/WIFI antenna 14, the GEO satellite communication unit 11, and the GE 0 satellite antenna 12.
  • LTE Long Term Evolution
  • the LTE baseband and application processing module 10 is the core of the system, and can adopt the MTK6797 processor, which is responsible for the processing of the baseband signal, and the protocol stack of the Wireless-Fidelity (WIFl) can also be operated thereon.
  • MTK6797 processor which is responsible for the processing of the baseband signal
  • WIFl Wireless-Fidelity
  • the GEO satellite communication unit 11 and the GEO satellite antenna 12 are responsible for communication between the terminal and the GEO satellite, and the GEO satellite communication unit 11 is passed through a universal asynchronous transceiver (Universal Asynchronous).
  • Receiver/Transmitter UART
  • UART Receiver/Transmitter
  • the GPS/WIFI module 13 includes GPS and WIFI, and the GPS/WIFI antenna 14 is responsible for processing functions such as GPS/WIFI.
  • the LTE baseband and application processing module 10 can control the GEO satellite communication unit 119 and GPS/WI through software.
  • the FI module 13 implements the aforementioned satellite information search method.
  • the radio frequency module 15 is composed of a radio frequency front end and a radio frequency transceiver, which completes receiving and transmitting radio frequency signals with the radio antenna 16 and interfaces with the LTE baseband and application processing module 10.
  • the power management module 17 is composed of a dedicated power management chip, responsible for the system's shutdown processing, and power supply.
  • the storage module 18 includes a Multi Chip Packaging (MCP) that supports a high speed memory system for storing software programs.
  • MCP Multi Chip Packaging
  • the display module 19 implements a display function of satellite signals.
  • the satellite signal search method of the embodiment of the present invention suspends the search by using a weak satellite signal environment Searching for the first satellite signal with large power consumption, and searching for the second satellite signal with low power consumption to detect whether the satellite signal is recovered. When the second satellite signal is searched, the satellite signal is recovered, and then the search is resumed.
  • a satellite signal generally reduces the average search frequency of the first satellite signal with a large search power consumption, reduces system power consumption, improves endurance, and prolongs the standby time of the terminal.
  • the apparatus includes a first control module 100, a second control module 200, a first search module 300, and a second search module 400.
  • the first search is performed.
  • the module 300 is used to search for the first satellite signal
  • the second search module 400 is used to search for the second satellite signal.
  • the first control module 100 is configured to control the first search module 300 to suspend searching for the first satellite signal when the first satellite signal search fails, and control the second search module 400 to search for the second satellite signal.
  • the second control module 205 is configured to control the first search module 300 to resume searching for the first satellite signal when the second satellite signal search is successful.
  • the first satellite signal and the second satellite signal are two different satellite signals, and the power consumption of searching for the first satellite signal is greater than the power consumption of searching for the second satellite signal, in other words, The search power consumption of a satellite signal is greater than the search power consumption of the second satellite signal.
  • the first satellite signal is the main satellite signal, and the first satellite signal is searched by default; the second satellite signal is the auxiliary satellite signal, and the second satellite signal is searched if necessary, for example, when the satellite signal is weak or Without a satellite signal, it is possible to detect whether the satellite signal is recovered by searching for the second satellite signal.
  • satellites mainly include geostationary orbit GEO satellites, MEO satellites, LEO satellites, etc.
  • corresponding satellite signals are GEO satellite signals, ME0 satellite signals, and LEO satellite signals.
  • the aforementioned satellite signals are sorted by search power consumption in order of GEO satellite signal, ME0 satellite signal and LEO satellite signal.
  • the second satellite signal may be a ME0 satellite signal or a LEO satellite signal.
  • the first satellite signal is the ME0 satellite signal
  • the second satellite signal is the LE 0 satellite signal.
  • the first satellite signal is a GEO satellite signal, and is used to implement a satellite communication function.
  • the first search module 300 for searching the first satellite signal is a GEO satellite communication unit; the second satellite signal is ME0.
  • the satellite signal is used to implement the satellite positioning function, and the second search module 400 for searching the second satellite signal is a satellite positioning system, such as a GPS, BDS, GL0NASS system, or the like.
  • the first search module 300 searches for the first satellite signal at a certain search frequency. When the first search module 300 does not search for the first satellite signal within the preset time, the first control module 100 determines the first satellite. Signal search failed.
  • the search frequency can be set according to actual needs, and is preferably set to search every 10-30 seconds (ie, the interval between two consecutive searches), for example: the first search module 300 searches for the first satellite every 20 seconds. signal.
  • the preset time can also be set according to actual needs, preferably within a range of 5 to 15 minutes, for example: When the first search module 300 does not search for the first satellite signal within 10 minutes, the first control module 100 Then it is determined that the first satellite signal search fails.
  • the first control module 100 controls the first search module 300 to suspend searching for the first satellite signal with a large search power.
  • the second search module 400 is controlled to search for a second satellite signal having a lower search power, thereby reducing power consumption.
  • the second search module 400 continuously searches for the second satellite signal at a certain search frequency until the second satellite signal is searched. It is equivalent to detecting whether the environment changes by searching the second satellite signal, and whether the satellite signal is restored.
  • the search frequency of the second satellite signal is greater than or equal to the search frequency of the first satellite signal, such as being searched once every 30 seconds, such as: the satellite mobile communication terminal searches for the second every 20 seconds. satellite signal.
  • the second satellite signal is a MEO satellite signal
  • the second search module 400 is a satellite positioning system
  • the first control module 100 acquires local ephemeris data, and controls the satellite positioning system to quickly search according to local ephemeris data.
  • MEO satellite signals generally 10 seconds or so can obtain search results, thereby further reducing power consumption.
  • the first control module 100 starts GPS, downloads local ephemeris data from the GPS ephemeris server through a mobile communication network (such as an LTE network) or a WIFI network, and the GPS quickly searches for MEO satellite signals according to local ephemeris data.
  • a mobile communication network such as an LTE network
  • WIFI network a mobile communication network
  • the second satellite signal search succeeds, indicating that the satellite signal of the current environment has recovered, such as from indoors to room, the satellite signal is improved, and the satellite signal is strong, and then the second control module 200 controls the first search.
  • Module 300 resumes searching for the first satellite signal and resumes satellite communication functionality.
  • the second control module 200 can also control the second search module 400 to stop searching for the second satellite signal to reduce power consumption without manual operation by the user. For example, when the second satellite signal search is successful, the second control module 200 turns off the GPS, and the GPS stops searching for the second satellite signal.
  • the satellite signal search device of the embodiment of the present invention suspends searching for a first satellite signal with a large power consumption by searching for a second satellite signal with a small power consumption by searching for a weak satellite signal. Whether the satellite signal is recovered or not, when the second satellite signal is searched, the satellite signal is recovered, and then the first satellite signal is searched, thereby reducing the average search frequency of the first satellite signal with a large search power consumption, and reducing The system power consumption improves the endurance and extends the standby time of the terminal.
  • the present invention also proposes a mobile terminal, which is preferably a satellite mobile communication terminal, comprising: one or more processors; a memory; one or more applications, wherein the one or more applications Stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform a satellite signal search method.
  • the satellite signal search method includes the following steps: searching for a first satellite signal; when the first satellite signal search fails, suspending searching for the first satellite signal, and searching for the second satellite signal; when the second satellite signal is searched successfully, the search is resumed a first satellite signal; wherein, the power consumption of the first satellite signal is greater than the power consumption of the second satellite signal.
  • the satellite signal search method described in this embodiment is the satellite signal search method in the above embodiment of the present invention, and details are not described herein again.
  • the mobile terminal performs the foregoing satellite signal search method by configuring one or more processors, and pauses searching for the first satellite signal with a large power consumption in an environment with weak satellite signals, and passes Searching for a second satellite signal with low power consumption to detect whether the satellite signal is recovered.
  • the second satellite signal is searched, it is determined that the satellite signal is recovered, and then the search for the first satellite signal is resumed, thereby reducing the search power consumption overall.
  • the average search frequency of the large first satellite signal reduces the system power consumption, improves the endurance, and prolongs the standby time of the terminal.
  • the present invention includes apparatus that is directed to performing one or more of the operations described herein.
  • These devices may be specially designed and manufactured for the required purposes, or may also include known devices in a general purpose computer.
  • These devices have computer programs stored therein that are selectively activated or reconfigured.
  • Such computer programs may be stored in a device (eg, computer) readable medium or in any type of medium suitable for storing electronic instructions and respectively coupled to a bus, including but not limited to any Type of disk (including floppy disk, Hard disk, CD, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only)
  • a readable medium includes any medium that is stored or transmitted by a device (e.g., a computer) in a readable form.
  • each block of the block diagrams and/or block diagrams and/or flow diagrams can be implemented with computer program instructions and/or in the block diagrams and/or block diagrams and/or flow diagrams.
  • Those skilled in the art will appreciate that these computer program instructions can be implemented by a general purpose computer, a professional computer, or a processor of other programmable data processing methods, such that the processor is executed by a computer or other programmable data processing method.
  • the block diagrams and/or block diagrams of the invention and/or the schemes specified in the blocks or blocks of the flow diagram are invented.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

La présente invention concerne un procédé de recherche de signal de satellite, un dispositif et un terminal mobile. Le procédé comprend les étapes suivantes : rechercher un premier signal de satellite ; si la première recherche de signal de satellite est infructueuse, interrompre la recherche du premier signal de satellite, et rechercher un second signal de satellite ; et si la seconde recherche de signal de satellite est fructueuse, reprendre la recherche du premier signal de satellite, la consommation d'énergie lors de la recherche du premier signal de satellite étant supérieure à la consommation d'énergie lors de la recherche du second signal de satellite. Ainsi, dans un environnement où le signal de satellite est faible, l'invention interrompt la recherche avec une plus grande consommation d'énergie de recherche pour trouver un premier signal de satellite, et effectue une recherche avec une consommation d'énergie moins élevée pour un second signal de satellite afin de détecter si un signal de satellite a été restauré. Si le second signal de satellite est trouvé, il est supposé que le signal de satellite a été restauré, et la recherche du premier signal de satellite reprend. Par conséquent, globalement, la fréquence de recherche moyenne de la recherche avec une plus grande consommation d'énergie de recherche pour un premier signal de satellite est réduite, la consommation d'énergie du système est réduite, l'exécution est augmentée, et le temps d'attente du terminal est prolongé.
PCT/CN2017/109186 2017-04-17 2017-11-02 Dispositif, procédé de recherche de signal de satellite et terminal mobile WO2018192207A1 (fr)

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CN106961300B (zh) * 2017-04-17 2019-10-08 深圳市沃特沃德股份有限公司 卫星信号搜索方法和装置
DE102018206789A1 (de) * 2018-05-03 2019-11-07 Robert Bosch Gmbh Verfahren zum Betreiben eines GNSS-Empfängers
CN110907963B (zh) * 2019-12-06 2022-09-02 Oppo广东移动通信有限公司 卫星定位引擎控制方法、装置及电子设备

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