WO2017166045A1 - 同步方法、同步装置和同步源 - Google Patents
同步方法、同步装置和同步源 Download PDFInfo
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- WO2017166045A1 WO2017166045A1 PCT/CN2016/077659 CN2016077659W WO2017166045A1 WO 2017166045 A1 WO2017166045 A1 WO 2017166045A1 CN 2016077659 W CN2016077659 W CN 2016077659W WO 2017166045 A1 WO2017166045 A1 WO 2017166045A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to the field of communications and, more particularly, to a synchronization method, a synchronization device, and a synchronization source.
- the device utilizes synchronization of the cellular network to implement device to device (D2D) synchronization.
- D2D device to device
- the embodiment of the present application provides a synchronization method, a synchronization device, and a synchronization source, which can be compatible with a satellite system and a cellular network to implement synchronization of the synchronization device.
- a synchronization method comprising: a synchronization device determining at least one synchronization source that transmits a synchronization signal; and when the at least one synchronization source includes at least one first synchronization source, based on each of the first synchronization sources a manner of selecting a synchronization signal, wherein the synchronization device selects a target synchronization source from the at least one first synchronization source; wherein the manner in which the first synchronization source selects a synchronization signal includes a first mode or a second mode, The first mode is to select the synchronization signals according to the first priority order, and the second mode is to select the synchronization signals according to the second priority order, wherein the first priority ranking is according to the correlation between the synchronization signals and the cellular network.
- the sequencing of the synchronization signals, the second prioritization is the ordering of the synchronization signals according to the correlation of the synchronization signals with the satellite system; the synchronization device is synchronized with the target
- the first prioritization includes: a synchronization signal directly from the network device, a synchronization signal from a terminal device directly synchronized with the network device, A synchronization signal of a terminal device that is indirectly synchronized with a network device.
- the second prioritization comprises: a synchronization signal directly from the satellite system > The synchronization signal from the terminal device that is directly synchronized with the satellite system > the synchronization signal from the terminal device indirectly synchronized with the satellite system.
- the first synchronization sequence includes the synchronization signal from the terminal device that is directly synchronized with the satellite system;
- the first synchronization sequence is further configured to indicate that the terminal device that transmits the first synchronization sequence is directly synchronized with the satellite system, or that the terminal device that transmits the first synchronization sequence directly indicates that it is directly synchronized with the satellite system by using a broadcast signal.
- the second synchronization sequence includes the synchronization signal from the terminal device indirectly synchronized with the satellite system; wherein the second synchronization sequence is further used to indicate that the terminal device transmitting the second synchronization sequence is indirectly
- the satellite system is synchronized, or the terminal device transmitting the second synchronization sequence instructs itself to be indirectly synchronized with the satellite system by a broadcast signal.
- a fourth possible implementation manner of the first aspect when the synchronization device is not within the coverage of the cellular network, and the satellite signal is received, Determining, by the synchronization device, the target synchronization source from the at least one first synchronization source, comprising: determining whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; selecting synchronization according to the at least one first synchronization source Whether the signals are the same, and the target synchronization source is selected from the at least one first synchronization source.
- a fifth possible implementation manner of the first aspect when the synchronization device is not within the coverage of the cellular network, and the satellite signal is received, When the manner of selecting the synchronization signals is the same for each of the first synchronization sources, the synchronization device selects the target synchronization source according to a third priority order; wherein the third priority ranking comprises: simultaneously with the cellular network and Synchronization source for satellite system synchronization > Synchronization source synchronized with the satellite system > Synchronization source synchronized with the network device.
- the synchronization device when the synchronization device is not within the coverage of the cellular network, and the satellite signal is received, When the manner in which the synchronization signals are selected by the at least one first synchronization source are different, the synchronization device selects the target synchronization source according to a fourth priority order; wherein the fourth priority ranking comprises: following the Synchronization source that selects the synchronization signal and simultaneously synchronizes with the network device and the satellite system in the first mode > Synchronization source that selects the synchronization signal according to the second mode and simultaneously synchronizes with the network device and the satellite system > Selects the synchronization signal according to the second mode And a synchronization source synchronized with the satellite system > a synchronization source that selects the synchronization signal and synchronizes with the network device in the first manner.
- the signal strength of the first synchronization source is greater than or equal to the first threshold.
- the synchronization device when the at least one synchronization source does not include the first synchronization source Synchronized with the satellite system.
- the ninth possible implementation manner of the first aspect when the synchronization device is not within the coverage of the cellular network, and the satellite signal cannot be received, Determining, by the synchronization device, the target synchronization source from the at least one first synchronization source, comprising: determining whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; selecting synchronization according to the at least one first synchronization source Whether the signals are the same, and the target synchronization source is selected from the at least one first synchronization source.
- the synchronization device when the synchronization device is not within the coverage of the cellular network, and the satellite signal cannot be received, the synchronization device selects the target synchronization source according to a fifth priority order; wherein the fifth priority ranking comprises: simultaneously with the network device and Synchronization source for satellite system synchronization > Synchronization source synchronized with network device > Synchronization source synchronized with the satellite system.
- the synchronization device is not within the coverage of the cellular network, and the satellite signal cannot be received. And, when the manners of selecting the synchronization signals by the at least one first synchronization source are different, the synchronization device sorts according to the sixth priority, and selects the target synchronization source; wherein the sixth priority ranking includes: according to a synchronization source that selects a synchronization signal and simultaneously synchronizes with a network device and a satellite system > a synchronization source that selects a synchronization signal according to the first manner and synchronizes with the network device > selects a synchronization signal according to the second manner and simultaneously Synchronization source for synchronization of the network device and the satellite system> A synchronization source that selects the synchronization signal and synchronizes with the satellite system in accordance with the second mode.
- the signal strength of the first synchronization source is greater than or equal to a second threshold.
- the synchronization device is not within the coverage of the cellular network, and the satellite signal cannot be received. And, when the at least one synchronization source does not include the first synchronization source and includes at least one second synchronization source, the synchronization device selects the target synchronization according to a seventh priority order Source, the signal strength of the second synchronization source is less than a second threshold and greater than or equal to a third threshold; wherein the seventh priority ranking comprises: a synchronization source synchronized with the satellite system > not with the satellite system and not with the network device Synchronized synchronization source.
- the satellite system is a global navigation satellite system (GNSS)
- the synchronization device is an in-vehicle device.
- GNSS global navigation satellite system
- the at least one synchronization source includes at least one of a network device, a terminal device, and a satellite system. .
- the second aspect provides a synchronization method, including: the synchronization device receives the indication information sent by the network device, where the indication information is used to indicate a manner in which the synchronization device selects a synchronization source, where the manner is the first mode or the second
- the first mode is to select a synchronization signal according to a first priority order
- the second mode is to select a synchronization signal according to a second priority order
- the third mode is to sort according to the first priority
- synchronization is an ordering of the synchronization signals according to the correlation of the synchronization signal with the cellular network
- the second prioritization is according to the synchronization signal and the satellite system Correlation of the synchronization signals
- the synchronization device selects a target synchronization source based on the indication information.
- the synchronization device selects a target synchronization source based on the indication information, including: when the indication information indicates the first mode And if the synchronization device does not receive the synchronization signal related to the cellular network signal, the synchronization device selects the target synchronization source according to the second manner; or when the indication information indicates the second mode, if the The synchronization device does not receive a synchronization signal associated with the satellite system, and the synchronization device selects the target synchronization source in a first manner.
- the synchronization device if the synchronization device does not receive the synchronization signal related to the cellular network signal at the first predetermined time And the synchronization device selects the target synchronization source according to the second manner; or if the synchronization device does not receive the synchronization signal related to the satellite system within the second predetermined time, the synchronization device selects the target according to the first manner Synchronization source.
- the first priority ranking includes: a synchronization signal directly from a network device, Synchronization signal of terminal equipment synchronized with network equipment> from indirect and network The synchronization signal of the terminal device synchronized by the device.
- the second prioritization includes: the synchronization signal generated by the satellite system is: directly from synchronizing with the satellite system The synchronization signal of the terminal device > the synchronization signal from the terminal device indirectly synchronized with the satellite system.
- the synchronization signal in the first priority order is prioritized The level is higher than the priority of the synchronization signal in the second priority order, or the priority of the synchronization signal in the second priority order is higher than the priority of the synchronization signal in the first priority order.
- a synchronization method including: a synchronization source determining a manner for acquiring a synchronization signal; and a manner of acquiring a synchronization signal by the synchronization source, including a first mode or a second mode, where the first mode is according to the first priority Sorting the synchronization signals, the second mode is selecting the synchronization signals according to the second priority order, wherein the first priority ordering is sorting the synchronization signals according to the correlation of the synchronization signals with the cellular network,
- the second prioritization is an ordering of the synchronization signals according to the correlation between the synchronization signal and the satellite system; the synchronization source acquires the first synchronization signal according to the determined manner for acquiring the synchronization signal;
- the first synchronization signal is synchronized; the synchronization source transmits a second synchronization signal and indication information, wherein the indication information is used to indicate a manner in which the synchronization source acquires the first synchronization signal.
- the synchronization source transmits the synchronization signal and the indication information, including: transmitting a second synchronization signal that is implemented by using the first synchronization sequence; transmitting broadcast information, The broadcast information is used to indicate the indication information.
- the synchronization source is a device that is directly synchronized with a satellite system, where the first synchronization sequence is included a sequence of the second synchronization signal transmitted by the synchronization source; or, the synchronization source is a device indirectly synchronized with a satellite system, and the first synchronization sequence is the second synchronization signal including the synchronization source transmission the sequence of.
- the synchronization source transmitting the synchronization signal and the indication information, including: transmitting a second synchronization sequence,
- the second synchronization sequence includes the second synchronization signal and the indication information.
- the fourth aspect in the third aspect is a device directly synchronized with a satellite system, and the second synchronization sequence is a sequence including the second synchronization signal transmitted by the synchronization source; or the synchronization source is an indirect A device synchronized with a satellite system, the second synchronization sequence being a sequence of the second synchronization signal transmitted by the synchronization source.
- the first priority ranking includes: a synchronization signal directly from a network device, The synchronization signal of the terminal device synchronized with the network device > the synchronization signal from the terminal device indirectly synchronized with the network device.
- the second priority ordering comprises: a synchronization signal generated by a satellite system > from a direct satellite The synchronization signal of the system-synchronized terminal device > the synchronization signal from the terminal device indirectly synchronized with the satellite system.
- the synchronization source determines a manner for acquiring the synchronization signal, including: according to the indication of the network device, The sync source determines the way in which the sync signal is acquired.
- a terminal for performing the method of any of the foregoing first aspect or any optional implementation of the first aspect.
- the communication device comprises a modular unit for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
- a synchronization apparatus for performing the method of any of the above-described first aspect or any alternative implementation of the first aspect.
- the synchronization device comprises a modular unit for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
- a synchronization apparatus for performing the method of any of the above alternative aspects of the second aspect or the second aspect.
- the synchronization device comprises a modular unit for performing the method of any of the above-described second or second aspects of the second aspect.
- a synchronization source for performing the method of any of the optional implementations of the third aspect or the third aspect above.
- the synchronization source comprises a modular unit for performing the method of any of the possible implementations of the third aspect or the third aspect described above.
- a synchronization apparatus comprising: a memory for storing an instruction, the processor for executing an instruction stored by the memory, and when the processor executes the instruction stored by the memory, Executing the method of causing the processor to perform the first aspect or any alternative implementation of the first aspect.
- a synchronization apparatus comprising: a memory for storing instructions for executing instructions stored in the memory, and a processor, when the processor executes the instructions stored by the memory, Executing the method of causing the processor to perform the second aspect or any alternative implementation of the second aspect.
- a synchronization source comprising: a memory for storing an instruction, the processor for executing an instruction stored by the memory, and when the processor executes the instruction stored by the memory, Executing the method of causing the processor to perform any of the optional aspects of the third aspect or the third aspect.
- a computer storage medium having stored therein program code for indicating a method of performing the above first aspect or any alternative implementation of the first aspect.
- a computer storage medium having stored therein program code for indicating a method of performing the second aspect or any alternative implementation of the second aspect.
- a computer storage medium having stored therein program code for indicating a method of performing the third aspect or any optional implementation of the third aspect.
- FIG. 1 is a schematic flowchart of a synchronization method according to an embodiment of the present application.
- FIG. 2 is a schematic flowchart of a synchronization method according to an embodiment of the present application.
- FIG. 3 is a schematic flowchart of a synchronization method according to an embodiment of the present application.
- FIG. 4 is a schematic block diagram of a synchronization device in accordance with an embodiment of the present application.
- FIG. 5 is a schematic block diagram of a synchronization device in accordance with an embodiment of the present application.
- FIG. 6 is a schematic block diagram of a synchronization source in accordance with an embodiment of the present application.
- FIG. 7 is a schematic block diagram of a synchronization device according to an embodiment of the present application.
- FIG. 8 is a schematic block diagram of a synchronization device according to an embodiment of the present application.
- FIG. 9 is a schematic block diagram of a synchronization source in accordance with an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- UMTS Universal Mobile Telecommunication System
- D2D communication may refer to vehicle to vehicle (V2V) communication, or V2X communication.
- V2X communication can refer to any device with wireless receiving and transmitting capabilities, such as but not limited to slow moving wireless devices, fast moving in-vehicle devices, or network control nodes with wireless transmit and receive capabilities.
- the embodiment of the present application may not be used for D2D communication, but is used for communication between the terminal and the cellular network.
- the network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved Node B (eNB) in LTE. Or e-NodeB), which may also be a device for providing an access service in the 5G, which is not limited by the embodiment of the present invention.
- BTS Base Transceiver Station
- NodeB base station
- eNB evolved Node B
- e-NodeB which may also be a device for providing an access service in the 5G, which is not limited by the embodiment of the present invention.
- the satellite system may be a Global Navigation Satellite System (GNSS).
- GNSS Global Navigation Satellite System
- FIG. 1 is a schematic flowchart of a synchronization method 100 according to an embodiment of the present application. This method can be implemented by sync source #1.
- the synchronization source determines the manner in which the synchronization signal is acquired.
- the method for selecting a synchronization signal by the synchronization source includes a first mode or a second mode, where the first mode is to select a synchronization signal according to a first priority order, and the second mode is to select a synchronization signal according to a second priority order, where
- the first priority ordering is in accordance with the synchronization signal and the cellular network signal Correlation
- the ordering of the synchronization signals which is the ordering of the synchronization signals in accordance with the correlation of the synchronization signals with the satellite signals.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a device directly synchronized with the network device > a synchronization signal from a device indirectly synchronized with the network device.
- the device that is indirectly synchronized with the network device refers to the synchronization signal that can obtain the network device indirectly, for example, the synchronization signal provided by the device at the edge of the network, and the synchronization signal provided by the device at the edge of the network is based on the synchronization directly received from the network device. signal.
- the more the synchronization signal obtained directly from the cellular network the higher the priority. This is because each time the synchronization signal is forwarded, a certain error is accumulated. The more the number of times of forwarding, the larger the accumulated synchronization error and the worse the synchronization accuracy. Therefore, the more the synchronization signal is directly obtained from the cellular network. The higher the priority.
- the second prioritization comprises: a satellite signal > a synchronization signal from a device that is directly synchronized with the satellite system > a synchronization signal from a device that is indirectly synchronized with the satellite system.
- the device indirectly synchronized with the satellite system is that the synchronization source is not directly synchronized with the satellite system, but acquires a synchronization signal transmitted by the device directly synchronized with the satellite signal.
- the synchronization source may determine a manner for acquiring the synchronization signal according to the indication of the network device.
- the first synchronization signal is acquired according to the determined manner for acquiring the synchronization signal.
- synchronization is performed in accordance with the first synchronization signal.
- a second synchronization signal and indication information are transmitted, wherein the indication information is used to indicate a manner in which the synchronization source acquires the first synchronization signal.
- the synchronization source #1 may transmit a first synchronization sequence and a broadcast message, the first synchronization sequence including the second synchronization signal, the broadcast message being used to indicate the indication information.
- the first synchronization sequence may be identical to the second synchronization sequence.
- the synchronization sequence only carries the synchronization signal, and the manner in which the synchronization source #1 is selected to select the synchronization signal may be transmitted by a broadcast message, for example, by transmitting a broadcast message through a synchronous broadcast channel.
- the synchronization source #1 may transmit a second synchronization sequence, the second synchronization sequence including the second The synchronization signal and the indication information.
- the synchronization sequence can be used not only to carry the synchronization signal, but also to indicate the manner in which the synchronization source selects the synchronization signal.
- the synchronization sequence mentioned in the embodiment of the present application may include the following four sequences: a synchronization sequence for synchronizing the synchronization device with the cellular network and the satellite system; a synchronization sequence for synchronizing the synchronization device with the cellular network and not synchronizing with the satellite system; A synchronization sequence that synchronizes the device with the satellite signal and is not synchronized with the cellular network; the synchronization sequence transmitted by the synchronization source itself (the synchronization source is neither synchronized with the cellular network nor synchronized with the satellite system).
- the synchronization sequence itself may indicate whether the synchronization source is synchronized with the cellular network and/or the satellite system.
- the synchronization sequence referred to in the embodiments of the present application may also comprise two sequences including a sequence of synchronization signals from devices that are directly synchronized with the satellite system, and a sequence of synchronization signals from devices that are indirectly synchronized with the satellite system.
- the synchronization sequence may only carry the synchronization signal.
- the synchronization sequence not only carries the synchronization signal, but also indicates whether the synchronization source transmitting the synchronization signal is directly or indirectly synchronized with the cellular network and/or the satellite system, that is, whether the synchronization device can utilize the synchronization signal to implement the Network and/or satellite systems are synchronized directly or indirectly.
- the broadcast signal may also be directly sent, and the broadcast signal indicates whether the synchronization source that transmits the synchronization signal is directly or indirectly synchronized with the cellular network and/or the satellite system, that is, whether the synchronization device can utilize
- the synchronization signal is implemented directly or indirectly with the cellular network and/or satellite system.
- the synchronization of the device with the cellular network and the satellite system may mean that the network device in the cellular network is synchronized with the satellite system.
- the synchronization signal in addition to transmitting the synchronization signal according to the method 100, the synchronization signal has other sources.
- the network device #2 can also transmit a synchronization signal, and when the network device transmits the synchronization signal, does not send a manner for instructing the network device to select the synchronization signal.
- terminal device #3 when terminal device #3 does not find any external synchronization source, it can be directly synchronized with the satellite system. At this time, terminal device #3 is not within the coverage of the network device, but can receive satellite signals. The terminal device is synchronized with the satellite system and transmits a synchronization signal indicating that it is synchronized with the satellite system but not synchronized with the cellular network. The terminal device does not send information about how the synchronization signal is selected by itself. Directional information.
- terminal device #4 does not find any external synchronization source and cannot receive satellite signals. At this time, terminal device #4 is not within the coverage of the cellular network and cannot receive satellite signals. Then, the terminal device generates a synchronization signal by itself, indicating that it is neither synchronized with the cellular network nor synchronized with the satellite system. The terminal device does not transmit indication information as to how the synchronization signal itself is selected.
- the synchronization source #1 may be a terminal device, for example, an in-vehicle device.
- the above terminal device #3 and terminal device #4 may be in-vehicle devices.
- each of the synchronization sources (including the synchronization source #1, the network device #2, the terminal device #3, and the terminal device #4 of the implementation 100) transmits a synchronization signal, which will be described below when the synchronization device receives the synchronization source. After the synchronization signal, how to select the synchronization source and synchronize.
- the synchronization device may be an in-vehicle device.
- the synchronization method 200 may be used when the synchronization device is located within the coverage of the cellular network, or after receiving the indication information of the network device within the network coverage, and then moving to the non-network coverage.
- the synchronization method 300 can be used to synchronize the device not within the coverage of the cellular network.
- FIG. 2 is a schematic flow chart of a synchronization method 200 in accordance with an embodiment of the present application.
- the synchronization device receives the indication information sent by the network device, where the indication information is used to indicate the manner in which the synchronization device selects the synchronization source, and the manner is the first mode or the second mode or the third mode.
- the first mode is to select a synchronization signal according to a first priority order
- the second mode is to select a synchronization signal according to a second priority order
- the third mode is a first priority order and a second priority order selection.
- a synchronization signal wherein the first prioritization is an ordering of the synchronization signals according to a correlation between the synchronization signal and the cellular network, the second priority ordering is sorting the synchronization signals according to the correlation between the synchronization signals and the satellite system ;
- the synchronization device selects the target synchronization source.
- the synchronization device selects the target synchronization source according to the second manner.
- the synchronization device selects the target synchronization source according to the first manner.
- the synchronization device when the synchronization device is within the coverage of the cellular network, it may be configured to select the target synchronization source for synchronization in the first mode or the second mode. If the sync device is configured to utilize the When the target synchronization source is selected in a manner, if the synchronization signal related to the cellular network is not received within the first predetermined time, the target synchronization source may be selected according to the second manner, and once the synchronization signal related to the cellular network is found, the The first way is to select the target synchronization source.
- the synchronization device is configured to select the target synchronization source by using the second mode, if the synchronization signal related to the satellite system is not received within the second predetermined time, the target synchronization source may be selected in the first manner, and once found The synchronization signal associated with the satellite system is re-selected in the second way to select the target synchronization source.
- the first predetermined time may be equal to or not equal to the second predetermined time.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the more the synchronization signal obtained directly from the cellular network the higher the priority. This is because each time the synchronization signal is forwarded, a certain error is accumulated, and the more the number of times of forwarding, the larger the accumulated synchronization error, and the worse the synchronization accuracy.
- the second prioritization comprises: a satellite system > a synchronization signal from a terminal device that is directly synchronized with the satellite system > a synchronization signal from a terminal device that is indirectly synchronized with the satellite system.
- the priority of the synchronization signal in the first priority order is higher than the priority of the synchronization signal in the second priority order, for example, synchronization directly from a network device.
- the synchronization signal in the second priority order has a higher priority than the synchronization signal in the first priority order, for example, directly from the satellite system.
- FIG. 3 is a schematic flowchart of a synchronization manner 300 according to an embodiment of the present application.
- the synchronization device determines at least one synchronization source that transmits the synchronization signal.
- the at least one synchronization source includes at least one first synchronization source
- the manner of selecting the synchronization signal by the first synchronization source includes a first mode or a second mode, where the first mode is to select a synchronization signal according to a first priority order, and the second mode is to select a synchronization signal according to a second priority order, wherein
- the first prioritization is an ordering of the synchronization signals according to the correlation of the synchronization signals with the cellular network
- the second prioritization is the ordering of the synchronization signals according to the correlation of the synchronization signals with the satellite system.
- synchronization is performed with the target synchronization source.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal generated by the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the synchronization device of method 300 can be in two communication scenarios.
- the synchronization device In the first communication scenario, the synchronization device is not within the coverage of the cellular network, but is capable of receiving satellite signals transmitted by the satellite system.
- the synchronization device In the second communication scenario, the synchronization device is not within the coverage of the cellular network, nor is it capable of receiving satellite signals transmitted by the satellite system. The following will combine these two scenarios to explain how to implement the synchronization mode 300 in detail.
- the synchronization device determines whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; and selects whether the synchronization signal is the same according to the at least one first synchronization source, and selects the target synchronization source from the at least one first synchronization source.
- the synchronization device selects the target synchronization source according to the third priority order; wherein the third priority ranking includes: simultaneously with the cellular network and the satellite system Synchronized Synchronization Source > Synchronization Source Synchronized with Satellite System > Network Design A synchronization source that is synchronized.
- the synchronization source synchronized with the cellular network and the satellite system has the highest priority, so that the interference and the retention of the cellular network can be reduced. Synchronization outside the coverage of the cellular network; when it is not possible to simultaneously consider the priority to ensure synchronization with the satellite system to maintain synchronization outside the coverage of the cellular network, the synchronization source synchronized with the satellite system has a higher priority than the synchronization source with the cellular network. level.
- the synchronization device selects the target synchronization source according to the fourth priority order; wherein the fourth priority ranking comprises: selecting according to the first manner Synchronization source that synchronizes signals and simultaneously synchronizes with network devices and satellite systems > Synchronization source that selects the synchronization signal in the second mode and simultaneously synchronizes with the network device and the satellite system > Synchronization source that selects the synchronization signal in synchronization with the satellite system and synchronizes with the satellite system > A synchronization source that selects the synchronization signal and synchronizes with the network device in the first way.
- the signal strength of the first synchronization source is greater than or equal to the first threshold. That is to say, the first synchronization source not only needs to select the synchronization signal according to the first mode or the second mode, and the strength of the synchronization signal transmitted needs to be greater than the first threshold.
- the first threshold can be based on actual conditions.
- the synchronization device in the synchronization source that the synchronization device is capable of receiving the synchronization signal provided by the synchronization device, if none of the indications are selected in the first mode or the second mode, or the strength of the provided synchronization signal is lower than the first threshold
- the synchronization device can be synchronized with the satellite system.
- the synchronization device determines whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; and selects whether the synchronization signal is the same according to the at least one first synchronization source, and selects the target synchronization source from the at least one first synchronization source.
- the synchronization device selects the target synchronization source according to the fifth priority order; wherein the fifth priority ranking includes: simultaneously with the network device and the satellite system Synchronized Synchronization Source > Synchronization Source Synchronized with Network Device > Synchronization source synchronized with the satellite system.
- the synchronization device sorts according to the sixth priority, and selects the target synchronization source; wherein the sixth priority ranking includes: selecting according to the first manner Synchronization signal synchronized with the network device and the satellite system at the same time > Synchronization source that selects the synchronization signal in the first mode and synchronizes with the network device> Selects according to the second mode A synchronization source that selects a synchronization signal and simultaneously synchronizes with the network device and the satellite system > a synchronization source that selects the synchronization signal in synchronization with the satellite system in a second manner.
- the signal strength of the first synchronization source is greater than or equal to a second threshold. That is to say, the first synchronization source not only needs to select the synchronization signal according to the first mode or the second mode, and the strength of the synchronization signal transmitted needs to be greater than the second threshold.
- This second threshold can be based on actual conditions.
- the synchronization device may determine whether there is at least one second synchronization source in the synchronization source capable of receiving the synchronization signal that is provided, and the signal strength of the second synchronization source is less than the second threshold and greater than or equal to the third threshold, and according to the Seven priority ordering, selecting a target synchronization source from the at least one second synchronization source, wherein the seventh priority ranking comprises:
- the synchronization device may itself transmit the synchronization signal and set itself to be out of sync with the GNSS and not with the cellular network when the synchronization signal provided by the synchronization source capable of receiving the synchronization signal it is providing is less than the third threshold.
- FIG. 4 is a schematic block diagram of a synchronization device 400 in accordance with an embodiment of the present application.
- the synchronization apparatus 400 includes: a determining unit 410, configured to determine at least one synchronization source that transmits a synchronization signal; and a selection unit 420, configured to, when the at least one synchronization source includes at least one first synchronization source, based on Each of the first synchronization sources selects a synchronization signal, and selects a target synchronization source from the at least one first synchronization source; wherein the manner in which the first synchronization source selects the synchronization signal includes a first mode or a second mode, where The first mode is to select a synchronization signal according to a first priority order, and the second mode is to select a synchronization signal according to a second priority order, wherein the first priority order is a synchronization signal according to a correlation between the synchronization signal and the cellular network. Sorting performed, the second priority ordering is sorting the
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal directly from the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > from indirect synchronization with the satellite system The synchronization signal of the terminal device.
- the first synchronization sequence includes the synchronization signal from the terminal device directly synchronized with the satellite system; wherein the first synchronization sequence is further used to indicate that the terminal device that transmits the first synchronization sequence is directly synchronized with the satellite system, Or the terminal device transmitting the first synchronization sequence instructs itself to synchronize directly with the satellite system by a broadcast signal; and/or the second synchronization sequence includes the synchronization signal from the terminal device indirectly synchronized with the satellite system; The second synchronization sequence is further configured to indicate that the terminal device transmitting the second synchronization sequence is indirectly synchronized with the satellite system, or the terminal device transmitting the second synchronization sequence instructs itself to indirectly synchronize with the satellite system by using a broadcast signal.
- the synchronization device 400 is not in the coverage of the cellular network, and can receive the satellite signal; the selecting unit 420 is specifically configured to: determine whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; The at least one first synchronization source selects whether the synchronization signals are the same, and the target synchronization source is selected from the at least one first synchronization source.
- the synchronization device 400 is not within the coverage of the cellular network, and can receive the satellite signal; the selecting unit 420 is specifically configured to: when each of the first synchronization sources selects the synchronization signal in the same manner, according to the The three priority rankings select the target synchronization source; wherein the third priority ranking includes: a synchronization source synchronized with the cellular network and the satellite system > a synchronization source synchronized with the satellite system > a synchronization source synchronized with the network device.
- the synchronization device 400 is not in the coverage of the cellular network, and can receive the satellite signal; the selecting unit 420 is specifically configured to: when the manner in which the synchronization signal is selected by the at least one first synchronization source is different, according to a fourth priority ordering, selecting the target synchronization source; wherein the fourth priority ranking comprises: selecting a synchronization signal according to the first manner and simultaneously synchronizing with the network device and the satellite system > selecting the synchronization according to the second manner Synchronization source that signals and simultaneously synchronizes with the network device and the satellite system > Synchronization source that selects the synchronization signal in accordance with the second mode and synchronizes with the satellite system > Synchronization source that selects the synchronization signal and synchronizes with the network device in accordance with the first mode.
- the signal strength of the first synchronization source is greater than or equal to the first threshold.
- the synchronization unit 430 is further configured to: synchronize with the satellite system when the at least one synchronization source does not include the first synchronization source.
- the synchronization device is not in the coverage of the cellular network, and cannot receive the satellite signal; the selecting unit 420 is specifically configured to: determine whether the manner in which the at least one first synchronization source selects the synchronization signal is the same; A first synchronization source selects whether the synchronization signals are the same, and the target synchronization source is selected from the at least one first synchronization source.
- the synchronization device is not in the coverage of the cellular network, and cannot receive the satellite signal; the selecting unit 420 is specifically configured to: when the manner of selecting the synchronization signal is the same in the at least one first synchronization source, according to the fifth The priority synchronization source selects the target synchronization source; wherein the fifth priority ranking includes: a synchronization source synchronized with the network device and the satellite system> a synchronization source synchronized with the network device> a synchronization source synchronized with the satellite system.
- the synchronization device is not in the coverage of the cellular network, and the satellite signal cannot be received.
- the selecting unit 420 is specifically configured to: when the manner in which the synchronization signal is selected by the at least one first synchronization source is different, according to the Six priority ordering, selecting the target synchronization source; wherein the sixth priority ordering comprises: selecting a synchronization signal according to the first mode and simultaneously synchronizing with a network device and a satellite system > selecting a synchronization signal according to the first mode And a synchronization source synchronized with the network device> a synchronization source that selects the synchronization signal according to the second mode and simultaneously synchronizes with the network device and the satellite system> a synchronization source that selects the synchronization signal and synchronizes with the satellite system according to the second mode.
- the signal strength of the first synchronization source is greater than or equal to a second threshold.
- the selecting unit 420 is further configured to: when the at least one synchronization source does not include the first synchronization source and includes at least one second synchronization source, select the target synchronization source according to a seventh priority order, the second The signal strength of the synchronization source is less than a second threshold and greater than or equal to a third threshold; wherein the seventh priority ranking comprises: a synchronization source synchronized with the satellite system > a synchronization source not synchronized with the satellite system and not with the network device.
- the satellite system is a Global Navigation Satellite System (GNSS)
- GNSS Global Navigation Satellite System
- the synchronization device is an in-vehicle device.
- the at least one synchronization source comprises at least one of a network device, a terminal device, and a satellite system.
- the synchronization device 400 may correspond to the synchronization device in the method 300, and the corresponding functions of the synchronization device may be implemented.
- the synchronization device 400 may correspond to the synchronization device in the method 300, and the corresponding functions of the synchronization device may be implemented.
- no further details are provided herein.
- FIG. 5 is a schematic block diagram of a synchronization device 500 in accordance with an embodiment of the present application.
- the synchronization device 500 includes: a receiving unit 510, configured to receive indication information sent by the network device, where the indication information is used to indicate a manner in which the synchronization device selects a synchronization source, where the manner is the first mode or the second a mode or a third mode; the first mode is to select a synchronization signal according to a first priority order, and the second mode is to select a synchronization signal according to a second priority order, the third mode is a first priority order and a second Priority sorting selects a synchronization signal, wherein the first priority ordering is ordering the synchronization signals according to the correlation between the synchronization signal and the cellular network, and the second priority ordering is to synchronize the correlation of the synchronization signals with the satellite system. Sorting of signals; selection unit 520, for Based on the indication information, the target synchronization source is selected.
- the selecting unit 520 is configured to: when the indication information indicates the first mode, if the receiving unit does not receive the synchronization signal related to the cellular network signal, the selecting unit selects the target according to the second manner.
- the synchronization source or, when the indication information indicates the second mode, if the receiving unit does not receive the synchronization signal related to the satellite system, the selection unit selects the target synchronization source according to the first mode.
- the selecting unit 520 is specifically configured to: if the receiving unit does not receive the synchronization signal related to the cellular network signal at the first predetermined time, select the target synchronization source according to the second manner; or if the receiving unit is The synchronization signal associated with the satellite system is not received within the second predetermined time, and the target synchronization source is selected in the first manner.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal generated by the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the priority of the synchronization signal in the first priority order is higher than the priority of the synchronization signal in the second priority order, or in the second priority ordering
- the priority of the synchronization signal is higher than the priority of the synchronization signal in the first priority ordering.
- the synchronization device 500 may correspond to the synchronization device in the method 200, and the corresponding functions of the synchronization device may be implemented.
- the synchronization device 500 may correspond to the synchronization device in the method 200, and the corresponding functions of the synchronization device may be implemented.
- no further details are provided herein.
- FIG. 6 is a schematic block diagram of a synchronization source 600 in accordance with an embodiment of the present application.
- the synchronization source 600 includes: a determining unit 610, configured to determine a manner for the acquiring unit 620 to acquire a synchronization signal; and a manner in which the acquiring unit acquires the synchronization signal includes a first mode or a second mode, where the first mode In order to select the synchronization signals according to the first priority order, the second mode is to select the synchronization signals according to the second priority order, wherein the first priority ordering is to sort the synchronization signals according to the correlation between the synchronization signals and the cellular network.
- the second priority ordering is to sort the synchronization signals according to the correlation between the synchronization signal and the satellite system; the obtaining unit 620 is configured to acquire the first synchronization signal according to the manner for determining the synchronization signal determined by the determining unit 610.
- the synchronization unit 630 is configured to perform synchronization according to the first synchronization signal, and the transmitting unit 640 is configured to transmit a second synchronization signal and indication information, where the indication information is used to indicate a manner in which the synchronization source acquires the first synchronization signal.
- the transmitting unit 640 is specifically configured to: transmit a second synchronization signal that is implemented by using the first synchronization sequence; and send broadcast information, where the broadcast information is used to indicate the indication information.
- the synchronization source 600 is a device directly synchronized with the satellite system, and the first synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitting unit 640; or the synchronization source 600 is indirectly synchronized with the satellite system.
- the first synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitting unit 640.
- the transmitting unit 640 is specifically configured to: send a second synchronization sequence, where the second synchronization sequence includes the second synchronization signal and the indication information.
- the synchronization source 600 is a device that is directly synchronized with the satellite system, and the second synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitting unit 640; or
- the synchronization source 600 is a device that is indirectly synchronized with the satellite system, and the second synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitting unit 640.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal generated by the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the determining unit 610 is specifically configured to: determine, according to an indication of the network device, a manner for acquiring the synchronization signal.
- the synchronization source 600 may correspond to the synchronization source in the method 100, and the corresponding function of the synchronization source may be implemented.
- the synchronization source 600 may correspond to the synchronization source in the method 100, and the corresponding function of the synchronization source may be implemented.
- details are not described herein again.
- FIG. 7 is a schematic block diagram of a synchronization device 700 in accordance with an embodiment of the present application.
- the synchronization device 700 includes a processor 710 and a memory 720.
- the memory 720 is configured to store program instructions.
- the processor 710 can call program instructions stored in the memory 720.
- the synchronization device 700 also includes a transceiver 730 for external communication, and a bus system 740 for interconnecting the processor 710, the memory 720, and the transceiver 730.
- the processor 710 is configured to invoke an instruction stored in the memory 720, and perform the operations of: determining at least one synchronization source that transmits the synchronization signal; and when the at least one synchronization source includes the at least one first synchronization source, based on each of the first synchronization sources Selecting a synchronization signal, selecting a target synchronization source from the at least one first synchronization source; wherein the manner in which the first synchronization source selects the synchronization signal includes the first In a second mode, the first mode is to select a synchronization signal according to a first priority order, and the second mode is to select a synchronization signal according to a second priority order, wherein the first priority ranking is according to a synchronization signal and a cellular Correlation of the network
- the sequencing of the synchronization signals is performed by sorting the synchronization signals according to the correlation of the synchronization signals with the satellite system; synchronizing with the target synchronization source.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal directly from the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the first synchronization sequence includes the synchronization signal from the terminal device directly synchronized with the satellite system; wherein the first synchronization sequence is further used to indicate that the terminal device that transmits the first synchronization sequence is directly synchronized with the satellite system, Or the terminal device transmitting the first synchronization sequence instructs itself to synchronize directly with the satellite system by a broadcast signal; and/or the second synchronization sequence includes the synchronization signal from the terminal device indirectly synchronized with the satellite system; The second synchronization sequence is further configured to indicate that the terminal device transmitting the second synchronization sequence is indirectly synchronized with the satellite system, or the terminal device transmitting the second synchronization sequence instructs itself to indirectly synchronize with the satellite system by using a broadcast signal.
- the synchronization device 700 is not within the coverage of the cellular network and can receive satellite signals; the processor 710 is configured to invoke an instruction stored in the memory 720, and perform the following operations: determining the at least one first synchronization source selection Whether the manner of the synchronization signal is the same; whether the synchronization signal is selected according to the at least one first synchronization source is the same, and the target synchronization source is selected from the at least one first synchronization source.
- the synchronization device 700 is not within the coverage of the cellular network and is capable of receiving satellite signals; the processor 710 is configured to invoke instructions stored in the memory 720 to perform the following operations: selecting each of the first synchronization sources When the synchronization signals are in the same manner, the synchronization device selects the target synchronization source according to the third priority order; wherein the third priority order includes: synchronization source synchronized with the cellular network and the satellite system> synchronization with the satellite system Source > Synchronization source synchronized with the network device.
- the synchronization device 700 is not within the coverage of the cellular network and is capable of receiving satellite signals; the processor 710 is configured to invoke instructions stored in the memory 720 to perform the following operations: When the manner in which the at least one first synchronization source selects the synchronization signal is different, the synchronization device selects the target synchronization source according to the fourth priority order; wherein the fourth priority ordering comprises: selecting the synchronization signal according to the first manner And a synchronization source synchronized with the network device and the satellite system at the same time > a synchronization source that selects the synchronization signal according to the second mode and simultaneously synchronizes with the network device and the satellite system > a synchronization source that selects the synchronization signal according to the second mode and synchronizes with the satellite system > A synchronization source that selects the synchronization signal and synchronizes with the network device in accordance with the first mode.
- the signal strength of the first synchronization source is greater than or equal to the first threshold.
- the processor 710 is configured to invoke an instruction stored in the memory 720 to perform synchronization with the satellite system when the at least one synchronization source does not include the first synchronization source.
- the synchronization device is not within the coverage of the cellular network and cannot receive the satellite signal; the processor 710 is configured to invoke an instruction stored in the memory 720, and perform the following operations: determining that the at least one first synchronization source selects synchronization Whether the manner of the signals is the same; selecting whether the synchronization signals are the same according to the at least one first synchronization source, and selecting the target synchronization source from the at least one first synchronization source.
- the synchronization device is not within the coverage of the cellular network and cannot receive the satellite signal; the processor 710 is configured to invoke an instruction stored in the memory 720 to perform an operation of: selecting synchronization at the at least one first synchronization source When the manners of the signals are the same, the synchronization device selects the target synchronization source according to the fifth priority order; wherein the fifth priority order includes: a synchronization source synchronized with the network device and the satellite system> a synchronization source synchronized with the network device > Synchronization source synchronized with the satellite system.
- the synchronization device is not within the coverage of the cellular network and cannot receive the satellite signal; the processor 710 is configured to invoke an instruction stored in the memory 720 to perform an operation of: selecting synchronization at the at least one first synchronization source
- the synchronization device selects the target synchronization source according to the sixth priority order; wherein the sixth priority ordering comprises: selecting the synchronization signal according to the first manner and simultaneously synchronizing with the network device and the satellite system Synchronization source> Synchronization source that selects the synchronization signal according to the first mode and synchronizes with the network device> Synchronization source that selects the synchronization signal according to the second mode and simultaneously synchronizes with the network device and the satellite system> Selects the synchronization signal according to the second mode And a synchronization source that is synchronized with the satellite system.
- the signal strength of the first synchronization source is greater than or equal to a second threshold.
- the processor 710 is configured to invoke an instruction stored in the memory 720, and perform the following operations: when the at least one synchronization source does not include the first synchronization source and includes at least one second synchronization source, according to the seventh Priority sorting selects the target synchronization source, the signal strength of the second synchronization source is less than a second threshold and greater than or equal to a third threshold; wherein the seventh priority ranking comprises: synchronization source synchronized with the satellite system > not with the satellite system And a synchronization source that is not synchronized with the network device.
- the satellite system is a Global Navigation Satellite System (GNSS)
- GNSS Global Navigation Satellite System
- the synchronization device 600 is an in-vehicle device.
- the at least one synchronization source comprises at least one of a network device, a terminal device, and a satellite system.
- the synchronization device 700 may correspond to the synchronization device in the method 300, and the corresponding functions of the synchronization device may be implemented.
- the synchronization device 700 may correspond to the synchronization device in the method 300, and the corresponding functions of the synchronization device may be implemented.
- no further details are provided herein.
- FIG. 8 is a schematic block diagram of a synchronization device 800 in accordance with an embodiment of the present application.
- the synchronization device 800 includes a processor 810 and a memory 820.
- the memory 820 is configured to store program instructions.
- the processor 810 can call program instructions stored in the memory 820.
- the synchronization device 800 also includes a transceiver 830 for external communication, and a bus system 840 for interconnecting the processor 810, the memory 820, and the transceiver 830.
- the processor 810 is configured to invoke the instruction stored in the memory 820, and perform the following operations: receiving, by the transceiver 830, indication information sent by the network device, where the indication information is used to indicate a manner in which the synchronization device selects a synchronization source, where the manner is the first mode.
- the first mode is to select the synchronization signals according to the first priority order
- the second mode is to select the synchronization signals according to the second priority order
- the third mode is to sort according to the first priority
- selecting a synchronization signal according to the second priority order wherein the first priority ordering is sorting the synchronization signals according to the correlation between the synchronization signal and the cellular network, and the second priority ordering is related to the satellite system according to the synchronization signal Sorting the synchronization signals; selecting the target synchronization source based on the indication information.
- the processor 810 is configured to invoke an instruction stored in the memory 820, and perform the following operations: when the indication information indicates the first mode, if the transceiver 830 does not receive the synchronization signal related to the cellular network signal And selecting the target synchronization source according to the second manner; or, when the indication information indicates the second mode, if the transceiver 830 does not receive the synchronization signal related to the satellite system, the target synchronization source is selected according to the first manner.
- the processor 810 is configured to invoke an instruction stored in the memory 820 to perform an operation of selecting a target according to the second mode if the transceiver 830 does not receive a synchronization signal related to the cellular network signal at the first predetermined time.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal generated by the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the priority of the synchronization signal in the first priority order is higher than the priority of the synchronization signal in the second priority order, or in the second priority ordering
- the priority of the synchronization signal is higher than the priority of the synchronization signal in the first priority ordering.
- the synchronization device 800 may correspond to the synchronization device in the method 200, and the corresponding functions of the synchronization device may be implemented.
- the synchronization device 800 may correspond to the synchronization device in the method 200, and the corresponding functions of the synchronization device may be implemented.
- no further details are provided herein.
- FIG. 9 is a schematic block diagram of a synchronization source 900 in accordance with an embodiment of the present application.
- the synchronization source 900 includes a processor 910 and a memory 920.
- the memory 920 is configured to store program instructions.
- the processor 910 can call program instructions stored in the memory 920.
- the synchronization source 900 also includes a transceiver 930 for external communication, and a bus system 940 for interconnecting the processor 910, the memory 920, and the transceiver 930.
- the processor 910 is configured to invoke the instruction stored in the memory 920, and perform the following operations: determining a manner for acquiring the synchronization signal; and acquiring the synchronization signal includes the first mode or the second mode, where the first mode is according to the first priority Sorting the selection of the synchronization signal, the second mode is selecting the synchronization signal according to the second priority order, wherein the first priority ordering is sorting the synchronization signal according to the correlation between the synchronization signal and the cellular network, the second priority Sorting is to sort the synchronization signals according to the correlation between the synchronization signal and the satellite system; acquiring the first synchronization signal according to the determined manner for acquiring the synchronization signal; performing synchronization according to the first synchronization signal; transmitting the first by using the transceiver 930 And a second synchronization signal and indication information, wherein the indication information is used to indicate a manner in which the synchronization source acquires the first synchronization signal.
- the processor 910 is configured to invoke an instruction stored in the memory 920 to perform: transmitting, by the transceiver 930, a second synchronization signal implemented by the first synchronization sequence; transmitting, by the transceiver 930, broadcast information, the broadcast information is used by the broadcast information Indicates the indication information.
- the synchronization source is a device directly synchronized with the satellite system, and the first synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitter 930; or
- the synchronization source is a device indirectly synchronized with the satellite system, and the first synchronization sequence includes the transmission A sequence of the second synchronization signal transmitted by the device 930.
- the processor 910 is configured to invoke an instruction stored in the memory 920, and perform the following operations: transmitting, by the transceiver 930, a second synchronization sequence, the second synchronization sequence including the second synchronization signal and the indication information.
- the synchronization source is a device directly synchronized with the satellite system
- the second synchronization sequence is a sequence including the second synchronization signal transmitted by the transmitter 930; or the synchronization source is a device indirectly synchronized with the satellite system
- the second synchronization sequence is a sequence comprising the second synchronization signal transmitted by the transmitter 930.
- the first prioritization comprises: a synchronization signal directly from the network device > a synchronization signal from a terminal device directly synchronized with the network device > a synchronization signal from a terminal device indirectly synchronized with the network device.
- the second prioritization comprises: a synchronization signal generated by the satellite system > a synchronization signal from a terminal device directly synchronized with the satellite system > a synchronization signal from a terminal device indirectly synchronized with the satellite system.
- the processor 910 is configured to invoke an instruction stored in the memory 920 to perform an operation of determining a manner for acquiring a synchronization signal according to an indication of the network device.
- the synchronization source 900 may correspond to the synchronization source in the method 100, and the corresponding function of the synchronization source may be implemented.
- the synchronization source 900 may correspond to the synchronization source in the method 100, and the corresponding function of the synchronization source may be implemented.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- Another point that is shown or discussed between each other The coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
- the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
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Abstract
Description
Claims (60)
- 一种同步方法,其特征在于,包括:同步装置确定发射同步信号的至少一个同步源;在所述至少一个同步源包括至少一个第一同步源时,基于每个所述第一同步源选择同步信号的方式,从所述至少一个第一同步源中,所述同步装置选择目标同步源;其中,所述第一同步源选择同步信号的方式包括第一方式或第二方式,所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;所述同步装置与所述目标同步源进行同步。
- 根据权利要求1所述的方法,其特征在于,第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求1或2所述的方法,其特征在于,第二优先级排序包括:直接来自于卫星系统的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求3所述的方法,其特征在于,第一同步序列包括所述来自于直接与卫星系统同步的终端设备的同步信号;其中,所述第一同步序列还用于指示发射所述第一同步序列的终端设备直接与卫星系统同步,或者,发射所述第一同步序列的终端设备通过广播信号指示自身直接与卫星系统同步;和/或,第二同步序列包括所述来自于间接与卫星系统同步的终端设备的同步信号;其中,所述第二同步序列还用于指示发射所述第二同步序列的终端设备间接与卫星系统同步,或者,发射所述第二同步序列的终端设备通过广播信号指示自身间接与卫星系统同步。
- 根据权利要求1至4中任一项所述的方法,所述同步装置不在蜂窝网络的覆盖范围之内,且能接收到卫星信号;从所述至少一个第一同步源中,所述同步装置选择目标同步源,包括:确定所述至少一个第一同步源选择同步信号的方式是否相同;根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源。
- 根据权利要求5所述的方法,其特征在于,根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源,包括:在每个所述第一同步源选择同步信号的方式相同时,所述同步装置按照第三优先级排序选择所述目标同步源;其中,所述第三优先级排序包括:同时与蜂窝网络和卫星系统同步的同步源>与卫星系统同步的同步源>与网络设备同步的同步源。
- 根据权利要求5所述的方法,其特征在于,根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源,包括:在所述至少一个第一同步源选择同步信号的方式不相同时,所述同步装置按照第四优先级排序,选择所述目标同步源;其中,所述第四优先级排序包括:按照所述第一方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第二方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第二方式选择同步信号且与卫星系统同步的同步源>按照所述第一方式选择同步信号且与网络设备同步的同步源。
- 根据权利要求5至7中任一项所述的方法,其特征在于,所述第一同步源的信号强度大于或等于第一阈值。
- 根据权利要求8所述的方法,其特征在于,所述方法还包括:在所述至少一个同步源不包括所述第一同步源时,所述同步装置与卫星系统同步。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述同步装置不在蜂窝网络的覆盖范围之内,且不能接收到卫星信号;从所述至少一个第一同步源中,所述同步装置选择目标同步源,包括:确定所述至少一个第一同步源选择同步信号的方式是否相同;根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源。
- 根据权利要求10所述的方法,其特征在于,根据所述第一同步源选择同步信号是否相同,从所述至少一个同步源中,选择所述目标同步源,包括:在所述至少一个第一同步源选择同步信号的方式相同时,所述同步装置按照第五优先级排序选择所述目标同步源;其中,所述第五优先级排序包括:同时与网络设备和卫星系统同步的同步源>与网络设备同步的同步源>与卫星系统同步的同步源。
- 根据权利要求10或11所述的方法,其特征在于,根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源,包括:在所述至少一个第一同步源选择同步信号的方式不相同时,所述同步装置按照第六优先级排序,选择所述目标同步源;其中,所述第六优先级排序包括:按照所述第一方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第一方式选择同步信号且与网络设备同步的同步源>按照所述第二方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第二方式选择同步信号且与卫星系统同步的同步源。
- 根据权利要求10至12中任一项所述的方法,其特征在于,所述第一同步源的信号强度大于或等于第二阈值。
- 根据权利要求13所述的方法,其特征在于,所述方法还包括:在所述至少一个同步源不包括所述第一同步源且包括至少一个第二同步源时,所述同步装置按照第七优先级排序选择所述目标同步源,所述第二同步源的信号强度小于第二阈值且大于等于第三阈值;其中,所述第七优先级排序包括:与卫星系统同步的同步源>不与卫星系统以及不与网络设备同步的同步源。
- 根据权利要求1至14中任一项所述的方法,其特征在于,所述卫星系统为全球导航卫星系统GNSS,所述同步装置为车载设备。
- 根据权利要求1至15中任一项所述的方法,其特征在于,所述至少一个同步源包括网络设备、终端设备和卫星系统中的至少一种。
- 一种同步方法,其特征在于,包括:同步装置接收网络设备发送的指示信息,所述指示信息用于指示所述同步装置选择同步源的方式,所述方式为第一方式或第二方式或第三方式;所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,所述第三方式为按照第一优先级排序和第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;所述同步装置基于所述指示信息,选择目标同步源。
- 根据权利要求17所述的方法,其特征在于,所述同步装置基于所述指示信息,选择目标同步源,包括:在所述指示信息指示的为所述第一方式时,如果所述同步装置接收不到与蜂窝网络信号相关的同步信号,所述同步装置按照第二方式选择目标同步源;或在所述指示信息指示的为所述第二方式时,如果所述同步装置接收不到与卫星系统相关的同步信号,所述同步装置按照第一方式选择目标同步源。
- 根据权利要求18所述的方法,其特征在于,如果所述同步装置接收不到与蜂窝网络信号相关的同步信号,所述同步装置按照第二方式选择目标同步源,包括:如果所述同步装置在第一预定时间接收不到与蜂窝网络信号相关的同步信号,所述同步装置按照所述第二方式选择目标同步源;或,如果所述同步装置接收不到与卫星系统相关的同步信号,所述同步装置按照第一方式选择目标同步源,包括:如果所述同步装置在第二预定时间内接收不到与卫星系统相关的同步信号,所述同步装置按照第一方式选择目标同步源。
- 根据权利要求19所述的同步方法,其特征在于,所述第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求19或20所述的方法,其特征在于,第二优先级排序包括:卫星系统产生的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求17至21中任一项所述的方法,其特征在于,在所述第三方式中,所述第一优先级排序中的同步信号的优先级高于所述第二优先级排序中的同步信号的优先级,或所述第二优先级排序中的同步信号的优先级高于所述第一优先级排序中的同步信号的优先级。
- 一种同步方法,其特征在于,包括:同步源确定用于获取同步信号的方式;同步源获取同步信号的方式包括第一方式或第二方式,所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;根据确定的用于获取同步信号的方式,所述同步源获取第一同步信号;所述同步源按照所述第一同步信号进行同步;所述同步源发射第二同步信号和指示信息,其中,所述指示信息用于指示所述同步源获取第一同步信号的方式。
- 根据权利要求23所述的方法,其特征在于,所述同步源发射同步信号和指示信息,包括:发射通过第一同步序列实现的第二同步信号;发射广播信息,所述广播信息用于指示所述指示信息。
- 根据权利要求24所述的方法,其特征在于,所述同步源为直接与卫星系统同步的设备,所述第一同步序列为包括所述同步源发射的所述第二同步信号的序列;或所述同步源为间接与卫星系统同步的设备,所述第一同步序列为包括所述同步源发射的所述第二同步信号的序列。
- 根据权利要求23所述的方法,其特征在于,所述同步源发射同步信号和指示信息,包括:发射第二同步序列,所述第二同步序列包括所述第二同步信号以及所述指示信息。
- 根据权利要求26所述的方法,其特征在于,所述同步源为直接与卫星系统同步的设备,所述第二同步序列为包括所述同步源发射的所述第二同步信号的序列;或所述同步源为间接与卫星系统同步的设备,所述第二同步序列为包括所述同步源发射的所述第二同步信号的序列。
- 根据权利要求23至27中任一项所述的方法,其特征在于,所述第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求23至28中任一项所述的方法,其特征在于,所述第二优先级排序包括:卫星系统产生的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求23至29中任一项所述的方法,其特征在于,同步源确定用于获取同步信号的方式,包括:按照网络设备的指示,所述同步源确定用于获取同步信号的方式。
- 一种同步装置,其特征在于,包括:确定单元,用于确定发射同步信号的至少一个同步源;选择单元,用于在所述至少一个同步源包括至少一个第一同步源时,基于每个所述第一同步源选择同步信号的方式,从所述至少一个第一同步源中,选择目标同步源;其中,所述第一同步源选择同步信号的方式包括第一方式或第二方式,所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;同步单元,用于与所述目标同步源进行同步。
- 根据权利要求31所述的同步装置,其特征在于,第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求31或32所述的同步装置,其特征在于,第二优先级 排序包括:直接来自于卫星系统的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求33所述的同步装置,其特征在于,第一同步序列包括所述来自于直接与卫星系统同步的终端设备的同步信号;其中,所述第一同步序列还用于指示发射所述第一同步序列的终端设备直接与卫星系统同步,或者,发射所述第一同步序列的终端设备通过广播信号指示自身直接与卫星系统同步;和/或,第二同步序列包括所述来自于间接与卫星系统同步的终端设备的同步信号;其中,所述第二同步序列还用于指示发射所述第二同步序列的终端设备间接与卫星系统同步,或者,发射所述第二同步序列的终端设备通过广播信号指示自身间接与卫星系统同步。
- 根据权利要求31至34中任一项所述的同步装置,所述同步装置不在蜂窝网络的覆盖范围之内,且能接收到卫星信号;所述选择单元具体用于:确定所述至少一个第一同步源选择同步信号的方式是否相同;根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源。
- 根据权利要求35所述的同步装置,其特征在于,所述选择单元具体用于:在每个所述第一同步源选择同步信号的方式相同时,按照第三优先级排序选择所述目标同步源;其中,所述第三优先级排序包括:同时与蜂窝网络和卫星系统同步的同步源>与卫星系统同步的同步源>与网络设备同步的同步源。
- 根据权利要求35所述的同步装置,其特征在于,所述选择单元具体用于:在所述至少一个第一同步源选择同步信号的方式不相同时,按照第四优先级排序,选择所述目标同步源;其中,所述第四优先级排序包括:按照所述第一方式选择同步信号且同时与网络设备和卫星系统同步的 同步源>按照所述第二方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第二方式选择同步信号且与卫星系统同步的同步源>按照所述第一方式选择同步信号且与网络设备同步的同步源。
- 根据权利要求35至37中任一项所述的同步装置,其特征在于,所述第一同步源的信号强度大于或等于第一阈值。
- 根据权利要求38所述的同步装置,其特征在于,所述同步单元还用于:在所述至少一个同步源不包括所述第一同步源时,与卫星系统同步。
- 根据权利要求31至34中任一项所述的同步装置,其特征在于,所述同步装置不在蜂窝网络的覆盖范围之内,且不能接收到卫星信号;所述选择单元具体用于:确定所述至少一个第一同步源选择同步信号的方式是否相同;根据所述至少一个第一同步源选择同步信号是否相同,从所述至少一个第一同步源中,选择所述目标同步源。
- 根据权利要求40所述的同步装置,其特征在于,所述选择单元具体用于:在所述至少一个第一同步源选择同步信号的方式相同时,按照第五优先级排序选择所述目标同步源;其中,所述第五优先级排序包括:同时与网络设备和卫星系统同步的同步源>与网络设备同步的同步源>与卫星系统同步的同步源。
- 根据权利要求40或41所述的同步装置,其特征在于,所述选择单元具体用于:在所述至少一个第一同步源选择同步信号的方式不相同时,按照第六优先级排序,选择所述目标同步源;其中,所述第六优先级排序包括:按照所述第一方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第一方式选择同步信号且与网络设备同步的同步源>按照所述第二方式选择同步信号且同时与网络设备和卫星系统同步的同步源>按照所述第二方式选择同步信号且与卫星系统同步的同步源。
- 根据权利要求40至42中任一项所述的同步装置,其特征在于,所 述第一同步源的信号强度大于或等于第二阈值。
- 根据权利要求43所述的同步装置,其特征在于,所述选择单元还用于:在所述至少一个同步源不包括所述第一同步源且包括至少一个第二同步源时,按照第七优先级排序选择所述目标同步源,所述第二同步源的信号强度小于第二阈值且大于等于第三阈值;其中,所述第七优先级排序包括:与卫星系统同步的同步源>不与卫星系统以及不与网络设备同步的同步源。
- 根据权利要求31至44中任一项所述的同步装置,其特征在于,所述卫星系统为全球导航卫星系统GNSS,所述同步装置为车载设备。
- 根据权利要求31至45中任一项所述的同步装置,其特征在于,所述至少一个同步源包括网络设备、终端设备和卫星系统中的至少一种。
- 一种同步装置,其特征在于,包括:接收单元,用于接收网络设备发送的指示信息,所述指示信息用于指示所述同步装置选择同步源的方式,所述方式为第一方式或第二方式或第三方式;所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,所述第三方式为按照第一优先级排序和第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;选择单元,用于基于所述指示信息,选择目标同步源。
- 根据权利要求47所述的同步装置,其特征在于,所述选择单元具体用于:在所述指示信息指示的为所述第一方式时,如果所述接收单元接收不到与蜂窝网络信号相关的同步信号,所述选择单元按照第二方式选择目标同步源;或在所述指示信息指示的为所述第二方式时,如果所述接收单元接收不到与卫星系统相关的同步信号,所述选择单元按照第一方式选择目标同步源。
- 根据权利要求48所述的同步装置,其特征在于,所述选择单元具体用于:如果所述接收单元在第一预定时间接收不到与蜂窝网络信号相关的同步信号,按照所述第二方式选择目标同步源;或,如果所述接收单元在第二预定时间内接收不到与卫星系统相关的同步信号,按照第一方式选择目标同步源。
- 根据权利要求49所述的同步装置,其特征在于,所述第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求49或50所述的同步装置,其特征在于,第二优先级排序包括:卫星系统产生的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求47至51中任一项所述的同步装置,其特征在于,在所述第三方式中,所述第一优先级排序中的同步信号的优先级高于所述第二优先级排序中的同步信号的优先级,或所述第二优先级排序中的同步信号的优先级高于所述第一优先级排序中的同步信号的优先级。
- 一种同步源,其特征在于,包括:确定单元,用于确定用于获取单元获取同步信号的方式;获取单元获取同步信号的方式包括第一方式或第二方式,所述第一方式为按照第一优先级排序选择同步信号,所述第二方式为按照第二优先级排序选择同步信号,其中,所述第一优先级排序是按照同步信号与蜂窝网络的相关性对同步信号进行的排序,所述第二优先级排序是按照同步信号与卫星系统的相关性对同步信号进行的排序;获取单元,用于根据所述确定单元确定的用于获取同步信号的方式,获取第一同步信号;同步单元,用于按照所述第一同步信号进行同步;发射单元,用于发射第二同步信号和指示信息,其中,所述指示信息用于指示所述同步源获取第一同步信号的方式。
- 根据权利要求53所述的同步源,其特征在于,所述发射单元具体用于:发射通过第一同步序列实现的第二同步信号;发射广播信息,所述广播信息用于指示所述指示信息。
- 根据权利要求54所述的同步源,其特征在于,所述同步源为直接与卫星系统同步的设备,所述第一同步序列为包括所述发射单元发射的所述第二同步信号的序列;或所述同步源为间接与卫星系统同步的设备,所述第一同步序列为包括所述发射单元发射的所述第二同步信号的序列。
- 根据权利要求53所述的同步源,其特征在于,所述发射单元具体用于:发射第二同步序列,所述第二同步序列包括所述第二同步信号以及所述指示信息。
- 根据权利要求56所述的同步源,其特征在于,所述同步源为直接与卫星系统同步的设备,所述第二同步序列为包括所述发射单元发射的所述第二同步信号的序列;或所述同步源为间接与卫星系统同步的设备,所述第二同步序列为包括所述发射单元发射的所述第二同步信号的序列。
- 根据权利要求53至57中任一项所述的同步源,其特征在于,所述第一优先级排序包括:直接来自于网络设备的同步信号>来自于直接与网络设备同步的终端设备的同步信号>来自于间接与网络设备同步的终端设备的同步信号。
- 根据权利要求53至58中任一项所述的同步源,其特征在于,所述第二优先级排序包括:卫星系统产生的同步信号>来自于直接与卫星系统同步的终端设备的同步信号>来自于间接与卫星系统同步的终端设备的同步信号。
- 根据权利要求53至59中任一项所述的同步源,其特征在于,所述确定单元具体用于:按照网络设备的指示,确定用于获取同步信号的方式。
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| EP16895826.2A EP3383103A4 (en) | 2016-03-29 | 2016-03-29 | SYNCHRONIZATION PROCESS, SYNCHRONIZATION DEVICE AND SYNCHRONIZATION SOURCE |
| KR1020187019862A KR20180127309A (ko) | 2016-03-29 | 2016-03-29 | 동기화 방법, 동기화 장치 및 동기화 소스 |
| US16/066,176 US11051264B2 (en) | 2016-03-29 | 2016-03-29 | Synchronization method, synchronization device and synchronization source |
| JP2018535869A JP6759342B2 (ja) | 2016-03-29 | 2016-03-29 | 同期方法、同期装置、及び同期ソース |
| CN201680074856.0A CN108432304A (zh) | 2016-03-29 | 2016-03-29 | 同步方法、同步装置和同步源 |
| TW106110453A TWI753893B (zh) | 2016-03-29 | 2017-03-29 | 同步方法、同步裝置和同步源 |
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| WO2018058375A1 (zh) * | 2016-09-28 | 2018-04-05 | 华为技术有限公司 | 通信方法及终端 |
| CN110730496B (zh) * | 2018-06-29 | 2021-04-06 | 电信科学技术研究院有限公司 | 一种同步的方法及终端设备 |
| CN112615704B (zh) | 2018-08-10 | 2022-03-08 | 华为技术有限公司 | 一种同步信号的传输方法和装置 |
| CN111263432B (zh) * | 2019-01-04 | 2021-06-29 | 维沃移动通信有限公司 | 信息传输方法及设备 |
| EP3716701A1 (en) * | 2019-03-29 | 2020-09-30 | Mitsubishi Electric R&D Centre Europe B.V. | Signaling method for d2d synchronization |
| WO2020224741A1 (en) | 2019-05-03 | 2020-11-12 | Huawei Technologies Co., Ltd. | Devices and methods for indicating a second-link retransmission over a first link |
| CN118303007A (zh) * | 2022-11-04 | 2024-07-05 | 北京小米移动软件有限公司 | 同步源选择方法和装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983532A (zh) * | 2008-02-01 | 2011-03-02 | 高通股份有限公司 | 无线网络同步 |
| US20150327201A1 (en) * | 2014-05-08 | 2015-11-12 | Intel IP Corporation | Systems, methods, and devices for synchronization source selection for device-to-device communication |
| CN105101391A (zh) * | 2014-05-09 | 2015-11-25 | 上海贝尔股份有限公司 | D2d系统中同步源协调、调整以及竞争同步源的方法和装置 |
| CN105101394A (zh) * | 2014-05-08 | 2015-11-25 | 宏碁股份有限公司 | 形成用于d2d通信的n跃点同步网络的方法 |
| CN105281884A (zh) * | 2014-07-24 | 2016-01-27 | 北京信威通信技术股份有限公司 | 一种无中心网络中的节点时间同步方法 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US21536A (en) * | 1858-09-14 | holmes | ||
| US7733835B2 (en) * | 2005-07-20 | 2010-06-08 | Interdigital Technology Corporation | Method and system for reducing power consumption of a wireless transmit/receive unit |
| US8605678B2 (en) * | 2007-01-31 | 2013-12-10 | Broadcom Corporation | Anticipatory hand-off setup between networks |
| WO2008136106A1 (ja) * | 2007-04-25 | 2008-11-13 | Fujitsu Limited | 無線リソース共有機能を有する移動無線通信システム |
| JP5290589B2 (ja) | 2008-02-06 | 2013-09-18 | ルネサスエレクトロニクス株式会社 | 半導体集積回路 |
| JPWO2010073441A1 (ja) | 2008-12-26 | 2012-05-31 | シャープ株式会社 | 同期装置、受信装置、同期方法、及び受信方法 |
| CN101938824B (zh) | 2009-06-29 | 2013-01-23 | 中国移动通信集团公司 | 空口同步方法、设备及系统 |
| KR102049046B1 (ko) | 2011-09-14 | 2019-11-26 | 한국전자통신연구원 | 단말간 직접통신 방법 및 이를 지원하는 단말 |
| JP6412872B2 (ja) | 2013-09-27 | 2018-10-24 | 京セラ株式会社 | ユーザ端末、方法及びプロセッサ |
| US9251629B2 (en) * | 2013-12-03 | 2016-02-02 | Hti Ip, Llc | Determining a time gap variance for use in monitoring for disconnect of a telematics device |
| CN104754740B (zh) | 2013-12-31 | 2018-12-14 | 电信科学技术研究院 | 资源分配方法和装置 |
| CN104812050B (zh) | 2014-01-24 | 2019-11-15 | 中兴通讯股份有限公司 | 一种实现空口同步的方法、小区和系统 |
| US20150264588A1 (en) | 2014-03-14 | 2015-09-17 | Samsung Electronics Co., Ltd. | Methods and apparatus for synchronization in device-to-device communication networks |
| WO2015143751A1 (zh) | 2014-03-24 | 2015-10-01 | 华为终端有限公司 | 一种无线通信方法及无线终端 |
| AU2014403118B2 (en) * | 2014-08-07 | 2018-11-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods implemented in access nodes for maintaining synchronization in radio access network and associated access nodes |
| CN104735774B (zh) | 2015-03-23 | 2018-05-01 | 京信通信系统(中国)有限公司 | 一种基于组网的空口同步方法与装置 |
| US10548106B2 (en) | 2015-07-08 | 2020-01-28 | Lg Electronics Inc. | Method and device for transmitting/receiving sync signal of device-to-device communication terminal in wireless communication system |
| JP6859590B2 (ja) * | 2015-11-06 | 2021-04-14 | ソニー株式会社 | 通信装置および通信方法 |
-
2016
- 2016-03-29 WO PCT/CN2016/077659 patent/WO2017166045A1/zh not_active Ceased
- 2016-03-29 CN CN201680074856.0A patent/CN108432304A/zh active Pending
- 2016-03-29 JP JP2018535869A patent/JP6759342B2/ja not_active Expired - Fee Related
- 2016-03-29 US US16/066,176 patent/US11051264B2/en active Active
- 2016-03-29 EP EP16895826.2A patent/EP3383103A4/en not_active Withdrawn
- 2016-03-29 KR KR1020187019862A patent/KR20180127309A/ko not_active Withdrawn
-
2017
- 2017-03-29 TW TW106110453A patent/TWI753893B/zh not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983532A (zh) * | 2008-02-01 | 2011-03-02 | 高通股份有限公司 | 无线网络同步 |
| US20150327201A1 (en) * | 2014-05-08 | 2015-11-12 | Intel IP Corporation | Systems, methods, and devices for synchronization source selection for device-to-device communication |
| CN105101394A (zh) * | 2014-05-08 | 2015-11-25 | 宏碁股份有限公司 | 形成用于d2d通信的n跃点同步网络的方法 |
| CN105101391A (zh) * | 2014-05-09 | 2015-11-25 | 上海贝尔股份有限公司 | D2d系统中同步源协调、调整以及竞争同步源的方法和装置 |
| CN105281884A (zh) * | 2014-07-24 | 2016-01-27 | 北京信威通信技术股份有限公司 | 一种无中心网络中的节点时间同步方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3383103A4 * |
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| US20190007918A1 (en) | 2019-01-03 |
| US11051264B2 (en) | 2021-06-29 |
| JP2019512899A (ja) | 2019-05-16 |
| CN108432304A (zh) | 2018-08-21 |
| EP3383103A4 (en) | 2019-07-10 |
| EP3383103A1 (en) | 2018-10-03 |
| JP6759342B2 (ja) | 2020-09-23 |
| TWI753893B (zh) | 2022-02-01 |
| KR20180127309A (ko) | 2018-11-28 |
| TW201735692A (zh) | 2017-10-01 |
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