WO2018027790A1 - 传输数据的方法和装置 - Google Patents
传输数据的方法和装置 Download PDFInfo
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- WO2018027790A1 WO2018027790A1 PCT/CN2016/094607 CN2016094607W WO2018027790A1 WO 2018027790 A1 WO2018027790 A1 WO 2018027790A1 CN 2016094607 W CN2016094607 W CN 2016094607W WO 2018027790 A1 WO2018027790 A1 WO 2018027790A1
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- synchronization source
- synchronization
- carrier frequency
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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
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
Definitions
- Embodiments of the present invention relate to the field of wireless communications and, more particularly, to methods and apparatus for transmitting data.
- in-vehicle equipment can communicate with vehicle to vehicle (V2V), vehicle to infrastructure (V2I) communication, vehicle to Pedestrian (V2P) communication, and vehicle equipment.
- Network (Vehicle to Network, V2N) communication, etc. timely obtain road condition information or receive information service.
- V2V and V2I Take the common V2V and V2I as an example: the V2V communication of the vehicle-mounted equipment can broadcast information such as its own speed, direction of travel, specific position, and whether or not the emergency brake is applied to the surrounding vehicle-mounted equipment, so that the driver can obtain such information. Better perceive traffic conditions outside the line of sight, thus making early predictions of dangerous conditions and making avoidance.
- V2I communication in addition to the above-mentioned interaction of security information, the roadside infrastructure can also provide various types of service information, access to data networks, non-stop charging, and in-vehicle entertainment for in-vehicle devices, thereby improving traffic intelligence.
- V2X vehicle-to-Everything
- the data transmitted between V2X is called V2X data
- the network used by V2X communication is called car networking.
- the transmission carrier frequency used by the user equipment (User Equipment, UE) to transmit the V2X and the service carrier frequency of the UE camping may be different carrier frequencies, that is, the transmission carrier frequency and the service carrier frequency may be located at different frequency points.
- the base station can configure the synchronization source for the transmission carrier frequency used by the UE to transmit the V2X data through the service carrier frequency, and the UE can obtain the synchronization clock on the transmission carrier frequency according to the synchronization source, and Data transfer.
- the global navigation satellite system GNSS
- the resources configured by the base station for the UE are all configured with reference to the synchronization source clock (ie, the GNSS clock).
- the UE may calculate the frame number and the subframe number corresponding to the time according to the specific GNSS time.
- the base station When the base station allocates resources for the UE, it refers to the GNSS clock to indicate the specific time-frequency location of the transmission resources that the UE can use (eg, all frequency domain resources of the 10th subframe of the #1 frame can be used to transmit V2X data).
- the frame number and the subframe number corresponding to the current GNSS time reach the time when the base station allocates resources, The UE can send data.
- the UE may sometimes be out of synchronization with the synchronization source, that is, the synchronization of the UE with the synchronization source fails. For example, when the UE enters the tunnel or the base pool, the UE may not receive the signal transmitted by the GNSS. At this time, the UE cannot obtain the frame number and the subframe number, and the UE cannot determine the effective time of the resource allocated by the base station, and cannot normally transmit data.
- the embodiments of the present invention provide a method and an apparatus for transmitting data, which can still implement normal data transmission after the user equipment and the synchronization source are out of synchronization.
- a first aspect includes: a user equipment UE receiving first synchronization source configuration information on a first carrier frequency, where the first synchronization source configuration information is used to determine a first synchronization source; Determining, by the UE, the first synchronization source according to the first synchronization source configuration information, where the first synchronization source is used to provide the UE with a synchronization clock required for transmitting data on the second carrier frequency, where the first carrier frequency The frequency point is different from the frequency of the second carrier frequency; the UE determines synchronization failure with the first synchronization source; the UE determines a second synchronization source and transmission resource; and the UE is according to the second synchronization The source transmits the data on the second carrier frequency using the transmission resource.
- the user equipment determines the required synchronization source for transmitting data according to the synchronization source information configured by the base station, and after the UE and the synchronization source are out of synchronization, re-determines a new synchronization source, and uses the new synchronization source for data transmission.
- the frequency of the transmission carrier frequency and the service carrier frequency can be different, and after the UE and the original synchronization source are out of synchronization, the normal transmission of data can still be realized.
- the data can be Device-to-Device (D2D) data, V2X data, and other data transmitted via direct-connection communication.
- D2D Device-to-Device
- V2X data V2X service related data.
- the UE may remain within the network coverage of the base station. That is, the UE measures the signal quality of the base station to meet the access requirement, and the UE can normally exchange signaling and data with the base station in the connected state, and the UE can normally receive the system information and paging information sent by the base station in the idle (IDLE) state. .
- the method further includes: determining, by the UE, that the synchronization failure with the first synchronization source includes any one of the following: a synchronization timer of the UE exceeds a set time, and the UE is still When the synchronization signal of the first synchronization source is not received, the UE determines that the synchronization with the first synchronization source is invalid; the strength of the synchronization signal of the first synchronization source received by the UE is less than the first When the threshold is preset, the UE determines that the synchronization with the first synchronization source is invalid; the average strength of the synchronization signal of the first synchronization source received by the UE within the specified duration T is less than the second preset. At the threshold, the UE determines that the synchronization with the first synchronization source has failed.
- the timing at which the synchronization timer starts counting may be the time at which the synchronization signal was last received.
- the UE determines that the synchronization failure with the first synchronization source includes: the UE detects the second synchronization source, and the signal strength of the second synchronization source is greater than a third preset. The threshold value, and when the priority of the second synchronization source is higher than the priority of the first synchronization source, the UE determines that the synchronization with the first synchronization source fails.
- the method further includes: determining, by the UE, a priority of the first synchronization source and the second synchronization source according to the first pre-configuration information; or, the UE is in the Receiving a broadcast message on a carrier frequency, determining a priority of the first synchronization source and the second synchronization source according to the broadcast message; or, the UE receiving a radio resource control RRC dedicated on the first carrier frequency And signaling, determining a priority of the first synchronization source and the second synchronization source according to the RRC dedicated signaling.
- the first pre-configuration information, the broadcast message, or the RRC dedicated signaling includes priority information of the synchronization source.
- the first synchronization source configuration information includes priority information of the synchronization source, and the priorities of the first synchronization source and the second synchronization source may be determined according to the first synchronization source configuration information.
- the determining, by the UE, the second synchronization source and the transmission resource required for transmitting the data includes: obtaining, by the UE, by using pre-configuration information or by using signaling configuration information received on the first carrier frequency. a second synchronization source configuration information, where the second synchronization source configuration information carries an identifier of the second synchronization source, and the UE determines the second synchronization source according to the identifier of the second synchronization source; or the UE The clock of the UE is used as the second synchronization source.
- the UE when detecting a new synchronization source to determine that the first synchronization source fails, the UE determines, according to the identifier of the second synchronization source, that the second synchronization source may be the second synchronization source according to the identifier according to the identifier. Performing detection, when detecting that the signal strength of the second synchronization source is greater than a certain value, and the priority of the second synchronization source is higher than the priority of the first synchronization source, the first synchronization source may be determined to be invalid, and the second synchronization may be performed.
- the source acts as a new synchronization source.
- the determining, by the UE, the second synchronization source and the transmission resource includes: The UE obtains the resource pool configuration information, where the resource pool configuration information is pre-configured or obtained according to the signaling configuration information received on the first carrier frequency; the UE determines the transmission resource pool according to the resource pool configuration information, and according to the The transmission resource pool determines the transmission resource.
- the determining, by the UE, the second synchronization source and the transmission resource includes: the UE receiving resource scheduling information on the first carrier frequency; and determining, by the UE, the transmission according to the resource scheduling information.
- the resource scheduling information is dynamic scheduling information or semi-static scheduling information.
- the method further includes: after the UE determines that the synchronization with the first synchronization source is invalid, the UE sends indication information to the access network device, where the indication information is used by Instructing synchronization of the UE with the first synchronization source to be invalid.
- the method further includes: the UE sending the identifier information of the second synchronization source to the access network device, where the identifier information of the second synchronization source is used to indicate The UE transmits the data at the second carrier frequency according to a clock of the second synchronization source.
- the identifier information of the first synchronization source carries the identifier of the first synchronization source
- the determining, by the UE, the first synchronization source according to the first synchronization source configuration information includes: The UE determines the first synchronization source according to the identifier information of the first synchronization source.
- the first synchronization source is a Global Navigation Satellite System (GNSS).
- GNSS Global Navigation Satellite System
- the embodiment of the present invention does not specifically limit the synchronization source used.
- the synchronization source in the embodiment of the present invention may be a mobile terminal synchronized with the GNSS, a cell synchronized with the GNSS, a current cell serving the UE, a preset cell, and the like.
- the transmitting, by the UE, the data on the second carrier frequency by using the transmission resource according to the second synchronization source includes: the UE is according to the second synchronization source, The data is transmitted by means of direct communication on the second carrier frequency.
- the V2X data transmission mode may be a direct connection communication mode, or may be a communication mode in which a base station performs transit.
- the data is that the in-vehicle device communicates data with other devices V2X.
- the data in the embodiment of the present invention may be V2X communication data between the in-vehicle device and other devices, so that the V2X data transmission enables the driver to perceive the traffic condition outside the line of sight, and can make a pre-judgment of the dangerous state to make a avoidance. Reduce the occurrence of traffic accidents.
- the second aspect provides a method for transmitting data, where the access network device sends the first synchronization source configuration information to the user equipment UE by using the first carrier frequency, where the first synchronization source configuration information carries the first synchronization source. Identifying, the first synchronization source configuration information is used to determine the first synchronization source; The access network device receives the indication information sent by the UE on the first carrier frequency, where the indication information is used to indicate that the synchronization between the UE and the first synchronization source is invalid, and the first synchronization source is used to The UE provides a synchronization clock required to transmit data on the second carrier frequency, and the frequency of the first carrier frequency and the frequency of the second carrier frequency are different.
- the access network device in the embodiment of the present invention after configuring the synchronization source for the UE, may receive the indication information that the synchronization failure of the UE and the synchronization source is invalid after the UE and the synchronization source are invalid, so that after the UE and the synchronization source are invalid, The access network device may not send signaling to the UE according to the indication information to configure a resource corresponding to the first synchronization source for the UE, which can save signaling overhead.
- the method further includes: the access network device transmitting second synchronization source configuration information to the UE on the first carrier frequency, so that the UE is in the After the synchronization of the synchronization source fails, the second synchronization source is determined according to the second synchronization source configuration information, and the data is transmitted on the second carrier frequency according to the second synchronization source.
- the access network device may send a transmission resource corresponding to the second synchronization source to the UE, and send the transmission resource to the UE, so that the UE transmits the transmission resource according to the second synchronization source.
- the data can be such that the UE can still perform normal data transmission after the synchronization of the first synchronization source fails.
- the data is that the in-vehicle device communicates data with other devices V2X.
- a third aspect provides an apparatus for transmitting data, including: a receiving unit, configured to receive first synchronization source configuration information on a first carrier frequency, where the first synchronization source configuration information is used to determine a first synchronization source; a unit, configured to determine, according to the first synchronization source configuration information received by the receiving unit, a first synchronization source, where the first synchronization source is configured to provide a synchronization clock required for transmitting data on a second carrier frequency, The frequency of the first carrier frequency is different from the frequency of the second carrier frequency; the processing unit is further configured to determine a synchronization failure with the first synchronization source; the processing unit is further configured to determine the second a synchronization source and a transmission resource; a transmission unit, configured to transmit the data on the second carrier frequency according to the second synchronization source determined by the processing unit and using the transmission resource.
- the user equipment determines the synchronization source required for the transmission data according to the synchronization source information configured by the base station, and after the UE and the synchronization source are out of synchronization, re-determines the new synchronization source, and uses the new synchronization source to perform data. Transmission, so that the frequency of the transmission carrier frequency and the service carrier frequency are different, and the UE can still achieve normal data transmission after the original synchronization source is out of synchronization.
- the processing unit is specifically configured to determine, by any one of the following methods, a synchronization failure with the first synchronization source: when the synchronization timer of the UE exceeds a set time, When the UE still does not receive the synchronization signal of the first synchronization source, the UE determines that the synchronization with the first synchronization source is invalid; the strength of the synchronization signal of the first synchronization source received by the UE is less than When the first preset threshold is used, the UE determines that the synchronization with the first synchronization source is invalid; and the average strength of the synchronization signal of the first synchronization source received by the UE within the specified duration T is smaller than When the threshold is preset, the UE determines that the synchronization with the first synchronization source is invalid.
- the processing unit is configured to: when detecting the second synchronization source, the signal strength of the second synchronization source is greater than a third preset threshold, and the second synchronization source When the priority is higher than the priority of the first synchronization source, the synchronization failure with the first synchronization source is determined.
- the processing unit is further configured to determine a priority of the first synchronization source and the second synchronization source according to the first pre-configuration information, or receive the first carrier frequency Broadcasting a message, determining a priority of the first synchronization source and the second synchronization source according to the broadcast message, or receiving radio resource control RRC dedicated signaling on the first carrier frequency, according to the RRC dedicated The signaling determines a priority of the first synchronization source and the second synchronization source.
- the processing unit is further configured to obtain second synchronization source configuration information by using pre-configuration information or by signaling configuration information received on the first carrier frequency, where the second synchronization source configuration
- the information carries the identifier of the second synchronization source, and the second synchronization source is determined according to the identifier of the second synchronization source, or the method is performed by the user equipment UE, and the clock of the UE is used as the second Synchronization source.
- the processing unit is specifically configured to acquire resource pool configuration information, where the resource pool configuration information is pre-configured or obtained by using signaling configuration information received on the first carrier frequency, according to The resource pool configuration information determines a transmission resource pool, and determines the transmission resource according to the transmission resource pool.
- the processing unit is configured to receive resource scheduling information on the first carrier frequency, and determine the transmission resource according to the resource scheduling information, where the resource scheduling information is dynamic scheduling information or Semi-static scheduling information.
- the apparatus further includes: the apparatus further comprising: a sending unit, configured to send an indication to the access network device after the UE determines that the synchronization with the first synchronization source fails And the indication information is used to indicate synchronization failure with the first synchronization source.
- a sending unit configured to send an indication to the access network device after the UE determines that the synchronization with the first synchronization source fails
- the indication information is used to indicate synchronization failure with the first synchronization source.
- the device is a user equipment UE
- the device further includes: the device is a user equipment UE
- the sending unit is further configured to send the second synchronization source to the access network device.
- Identification information where the identifier information of the second synchronization source is used to indicate that the UE is currently Synchronization source.
- the identifier information of the first synchronization source carries the identifier of the first synchronization source
- the processing unit is specifically configured to determine the first synchronization according to the identifier information of the first synchronization source. source.
- the first synchronization source is a Global Navigation Satellite System (GNSS).
- GNSS Global Navigation Satellite System
- the transmission unit is specifically configured to transmit data according to the second synchronization source by using direct communication on the second carrier frequency.
- the data is that the in-vehicle device communicates data with other devices V2X.
- the apparatus for transmitting data according to the third aspect of the embodiments of the present invention may correspond to the method of transmitting data in the first aspect of the method embodiment of the present invention, and the respective units/modules in the apparatus and the other operations and/or functions described above In order to implement the corresponding processes in the method shown in the first aspect, for brevity, details are not described herein again.
- the receiving unit may be a receiver, and the receiver may be configured to receive first synchronization source configuration information on the first carrier frequency, where the first synchronization source configuration information is used to determine the first synchronization source.
- the receiver can also perform the steps performed by the receiving unit in the possible design of the third aspect described above. To avoid repetition, details are not described herein again.
- the processing unit may be a processor, and the processor may be configured to determine a first synchronization source according to the first synchronization source configuration information, and further configured to determine synchronization with the first synchronization source. The failure is also used to determine the second synchronization source and transmission resources.
- the first synchronization source is configured to provide a synchronization clock required for transmitting data on the second carrier frequency, and the frequency of the first carrier frequency and the frequency of the second carrier frequency are different.
- the processor may perform the steps performed by the processing unit in the possible design of the third aspect described above. To avoid repetition, details are not described herein again.
- the transmission unit may be a transmitter for transmitting the data on the second carrier frequency using the transmission resource according to the second synchronization source.
- the transmission unit may be a transmitter, and the transmitter may be configured to transmit on the second carrier frequency according to the second synchronization source determined by the processing unit and using the transmission resource.
- the data may be a code, and the transmission resource may be a code, and the transmission resource may be a code, and the transmission resource may be a code.
- the transmitter may perform the steps performed by the transmission unit and/or the transmission unit in the possible design of the third aspect described above. To avoid repetition, details are not described herein again.
- the fourth aspect provides an apparatus for transmitting data, including: a sending unit, configured to send first synchronization source configuration information to a user equipment UE by using a first carrier frequency, where the first synchronization source configuration information carries a first synchronization source The first synchronization source configuration information is used to determine the first synchronization source, and the receiving unit is configured to receive the indication information sent by the UE on the first carrier frequency, where the indication information is used to indicate the Synchronization of the UE with the first synchronization source, the first synchronization source is used to provide the UE with a synchronization clock required for transmitting data on the second carrier frequency, and the frequency and location of the first carrier frequency The frequency of the second carrier frequency is different.
- the access network device in the embodiment of the present invention after configuring the synchronization source for the UE, may receive the indication information that the synchronization failure of the UE and the synchronization source is invalid after the UE and the synchronization source are invalid, so that after the UE and the synchronization source are invalid, The access network device can no longer send signaling to the UE according to the indication information to configure resources for the UE, which can save signaling overhead.
- the sending unit is further configured to send second synchronization source configuration information to the UE on the first carrier frequency, where the second synchronization source configuration information is used by the UE After the synchronization of the first synchronization source fails, the second synchronization source is determined according to the second synchronization source configuration information, and the data is transmitted on the second carrier frequency according to the second synchronization source.
- the apparatus for transmitting data according to the fourth aspect of the embodiments of the present invention may correspond to the method of transmitting data in the second aspect of the method embodiment of the present invention, and each unit/module in the apparatus and the other operations and/or functions described above In order to implement the corresponding processes in the method shown in the second aspect, for brevity, details are not described herein again.
- the sending unit may be a transmitter, and the transmitter may be configured to send first synchronization source configuration information to the user equipment UE by using the first carrier frequency, where the first synchronization source configuration information carries An identifier of the first synchronization source, where the first synchronization source configuration information is used to determine the first synchronization source.
- the receiving unit may be a receiver, and the receiver may be configured to receive indication information on the first carrier frequency, where the indication information is used to indicate that the UE is synchronized with the first Synchronization failure of the source, the first synchronization source is configured to provide the UE with a synchronization clock required for transmitting data on the second carrier frequency, the frequency of the first carrier frequency and the frequency of the second carrier frequency The point is different.
- the transmitter may be further configured to send second synchronization source configuration information to the UE, where the second synchronization source configuration information is used by the UE in the first synchronization source After the synchronization fails, the second synchronization source is determined according to the second synchronization source configuration information, and the data is transmitted on the second carrier frequency according to the second synchronization source.
- an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the access network device, which is designed to perform the foregoing second aspect or the second aspect. program of.
- the access network device may not send signaling to the UE according to the indication information that the synchronization failure of the synchronization source sent by the UE is sent to the UE to configure the UE to correspond to the first synchronization source. Resources can save signaling overhead.
- an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the UE, including a program designed to perform the above first aspect or the possible design of the first aspect.
- the user equipment determines the required synchronization source for transmitting data according to the synchronization source information configured by the base station, and after the UE and the synchronization source are out of synchronization, re-determines a new synchronization source, and uses the new synchronization source for data transmission.
- the frequency of the transmission carrier frequency and the service carrier frequency can be different, and after the UE and the original synchronization source are out of synchronization, the normal transmission of data can still be realized.
- FIG. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present invention is applicable.
- FIG. 2 is a schematic interaction flow diagram of a method of transmitting data according to an embodiment of the present invention.
- FIG. 3 is a schematic interaction flowchart of a method for transmitting data according to another embodiment of the present invention.
- FIG. 4 is a block diagram of an apparatus for transmitting data in accordance with an embodiment of the present invention.
- FIG. 5 is a block diagram of an apparatus for transmitting data in accordance with another embodiment of the present invention.
- FIG. 6 is a block diagram of an apparatus for transmitting data in accordance with one embodiment of the present invention.
- FIG. 7 is a block diagram of an apparatus for transmitting data in accordance with another embodiment of the present invention.
- 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
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in WCDMA, or may be an evolved base station (Evolved Node B, eNB or e-NodeB) in LTE.
- BTS Base Transceiver Station
- NodeB NodeB
- NB base station
- Evolved Node B, eNB or e-NodeB evolved base station
- a user equipment may be referred to as a terminal, a mobile station (Mobile Station, MS), or a mobile terminal (Mobile Terminal).
- the user equipment may be a radio access network (RAN).
- Communicating with one or more core networks for example, the user equipment may be a mobile phone (or "cellular" phone) or a computer with a mobile terminal, etc., for example, the user device may also be portable, pocket, handheld, Computer built-in or in-vehicle mobile devices that exchange voice and/or data with a wireless access network.
- the user equipment in the embodiment of the present invention may refer to an in-vehicle device.
- FIG. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present invention is applicable.
- the communication system of FIG. 1 includes a user equipment UE 11, a device X 12, an access network device 13, and a synchronization source 14.
- the UE in the embodiment of the present invention may be an in-vehicle device, and may also be a roadside unit device of a terminal type, a handheld terminal, a wearable device, or the like.
- the access network device in the embodiment of the present invention may be a base station, a site-based roadside unit, or the like.
- the device X in the embodiment of the present invention may be any device.
- the device X may be an in-vehicle device, a network, a pedestrian, a roadside infrastructure, or the like.
- V2X data transmission can be performed between the UE and the device X, and the UE 11 is under the coverage of the signal of the base station 13.
- V2X transmission number The transmission carrier frequency and the service carrier frequency of the base station deployed by the UE may be different. In other words, the frequency of the transmission carrier frequency and the service carrier frequency may be different.
- the synchronization source of the UE on the V2X data transmission carrier frequency can be configured by the service carrier frequency.
- the base station configures the UE to use the GNSS as the synchronization source of the V2X data transmission carrier frequency, and the base station configures the resource for the UE with reference to the synchronization source GNSS clock.
- the UE may calculate the number of the frame corresponding to the time and the subframe number according to the GNSS time.
- the base station allocates resources for the UE, it indicates the specific time-frequency location of the transmission resource that the UE can use, for example, the number of the frame of the transmission resource that the UE can use and the number of the subframe.
- the UE may transmit data when the number of the frame corresponding to the GNSS time and the subframe number are equal to the number of the frame for the transmission resource and the number of the subframe that the base station has indicated.
- the UE may be out of synchronization with the synchronization source, that is, the synchronization of the UE with the synchronization source fails. For example, when the UE enters the tunnel or the base pool, the UE may not receive the signal transmitted by the GNSS. At this time, the UE cannot obtain the frame number and the subframe number, and the UE cannot determine the effective time of the resource allocated by the base station, and the data cannot be normally transmitted.
- the service carrier frequency and the data transmission carrier frequency are located at different carrier frequencies.
- FIG. 2 is a schematic interaction flow diagram of a method of transmitting data according to an embodiment of the present invention.
- the access network device is an eNB and the data is V2X data is used as an example, and the data flow is performed by using the information exchange between the UE and the eNB and the UE and the device X as an example.
- sexual description is used.
- the eNB sends first synchronization source configuration information to the UE in the first carrier frequency, and the UE receives the first synchronization source configuration information that is sent by the eNB on the first carrier frequency.
- the eNB sends the first synchronization source configuration information to the UE, where the first synchronization source configuration information can be used to configure the synchronization source required for the UE to transmit the V2X data on the second carrier frequency.
- the first synchronization source configuration information carries an identifier of the first synchronization source, so that the UE determines, according to the first synchronization source identifier, a synchronization source required for currently transmitting the V2X data.
- the first synchronization source configuration information in the embodiment of the present invention may indicate that the first synchronization source is any one of a GNSS, a mobile terminal or a cell synchronized with the GNSS, a cell currently serving the UE, a designated cell, and a specified mobile terminal synchronization source.
- the first synchronization source configuration information may indicate that the first synchronization source is a GNSS, and correspondingly, the identifier of the first synchronization source is a GNSS identifier.
- the eNB is deployed on the first carrier frequency, and the transmission of the V2X data is located at the second carrier frequency.
- Frequency of the first carrier frequency It is different from the frequency of the second carrier frequency.
- the frequency of the first carrier frequency (the service carrier frequency of the UE) may be located at 2 GHz
- the frequency of the second carrier frequency (the transmission carrier frequency when the UE transmits V2X data) may be located at 5.9 GHz.
- the service carrier frequency can configure the transmission resources (such as dynamic transmission resources, semi-static transmission resources, transmission resource pools, and reception resource pools) on the transmission carrier frequency for the UE.
- the configuration information may further include frequency point information of the second carrier frequency, so that the first UE can perform data transmission on the frequency of the second carrier frequency.
- no base station deployment is performed on the second carrier frequency.
- the V2X data transmission mode may be a direct communication method in which two devices directly communicate with each other, or a communication method in which a base station performs a relay.
- the transmission mode of the V2X data on the second carrier frequency is a direct communication mode.
- the eNB sends the configuration information to the UE by using dedicated signaling of Radio Resource Control (RRC), or by using a broadcast message.
- RRC Radio Resource Control
- the UE may remain within the network coverage of the eNB.
- the UE determines that the signal quality of the base station meets the access requirement, and the UE can normally exchange signaling and data with the base station in the connected state, and the UE can normally receive the system information and paging information sent by the base station in the IDLE state.
- the UE determines a first synchronization source.
- the UE receives the first synchronization source configuration information, and uses the first synchronization source as a synchronization source for transmitting V2X data according to the first synchronization source configuration information.
- the UE may determine the first synchronization source according to the identifier of the first synchronization source.
- the UE may also implement synchronization between the UE and the first synchronization source.
- the first synchronization source is a GNSS
- the UE can directly synchronize with the GNSS system through its own GNSS receiver, and can also use the GNSS clocked mobile terminal as an intermediate synchronization source by searching for a GNSS dedicated direct link synchronization signal. And synchronized with the intermediate synchronization source to achieve synchronization with the GNSS system.
- the UE can implement data transmission on the corresponding resource according to the synchronization source. For example, after the UE synchronizes with the first synchronization source, the UE may receive resource allocation information sent by the base station.
- the resource allocation information indicates at least one of available dynamic transmission resources, semi-static transmission resources, transmission resource pools, and reception resource pools available on the direct link.
- the resource allocation information here is configured with reference to the clock of the first synchronization source.
- the UE uses the corresponding resource to transmit data according to the received resource allocation information. Specifically, the UE may use the sending resource to send corresponding V2X data, and may receive the corresponding resource by using the receiving resource. V2X data.
- the UE determines a synchronization failure with the first synchronization source.
- Step 202 indicates that the UE can implement data transmission on the corresponding resource according to the first synchronization source.
- the UE may also be out of synchronization with the first synchronization source, for example, when the UE enters a tunnel or a base pool.
- the synchronization timer in the UE may record the elapsed time after the synchronization signal is received last time.
- the UE still does not receive the synchronization signal of the first synchronization source, and may first consider that The synchronization of the UE with the first synchronization source fails.
- the UE may receive the synchronization signal of the synchronization source.
- the synchronization between the UE and the first synchronization source may be considered invalid.
- the synchronization between the UE and the first synchronization source may be considered invalid.
- the synchronization failure between the UE and the first synchronization source may be that the UE is out of synchronization with the first synchronization source, or the UE may detect more synchronization than the first synchronization source.
- Source at this time, the synchronization between the UE and the first synchronization source may also be considered invalid.
- the UE detects the second synchronization source, the signal strength of the second synchronization source is greater than the third preset threshold, and the priority of the second synchronization source is higher than the priority of the first synchronization source, and the UE may consider The synchronization of the first synchronization source fails.
- the UE detects the second synchronization source, the signal strength of the second synchronization source is greater than the third preset threshold, and the signal of the first synchronization source is less than the fourth threshold, and the priority of the second synchronization source is equal to or The priority of the first synchronization source is smaller than the priority of the first synchronization source, and the UE may consider that the synchronization with the first synchronization source is invalid.
- the priority of the synchronization source may be pre-configured by the system or configured by the base station.
- the base station sends system broadcast information to the UE on the first carrier frequency to configure, or the base station sends the radio to the UE on the first carrier frequency.
- the resource controls RRC dedicated signaling to configure.
- the UE determines a second synchronization source and a transmission resource.
- step 104 may directly detect A more preferred synchronization source to is determined as the second synchronization source.
- the transmission resource may be allocated according to the clock of the second synchronization source, where the transmission resource may be a base station configuration or a system pre-configured.
- the second synchronization source and the corresponding transmission resource may be pre-configured. To, it can also be obtained by the base station through signaling configuration.
- the signaling configuration of the base station may be that the UE receives the signaling configuration information sent by the base station on the first carrier frequency.
- the UE may determine the second synchronization source required for transmitting the V2X data in the following manner: the UE acquires the second synchronization source configuration information that is sent by the access network device on the first carrier frequency, and the second synchronization source configuration information may be carried.
- the identifier of the second synchronization source the UE may determine, according to the identifier of the second synchronization source, a second synchronization source required for transmitting the V2X data.
- the second synchronization source configuration information may be configured by using the broadcast message to configure the second synchronization source configuration information, or the second synchronization source configuration information may be configured by sending the radio resource control RRC dedicated signaling.
- the UE may further acquire second synchronization source configuration information that carries the identifier of the second synchronization source by using the pre-configuration information, and determine a second synchronization source required for transmitting the V2X data according to the identifier of the second synchronization source. Furthermore, the UE can also use the clock of the UE as the second synchronization source.
- the clock of the UE may be a clock or timer that is currently maintained by the UE itself.
- the UE may use the clock of the current base station as the clock of the UE, or may independently determine one clock as the clock of the UE.
- the UE may determine the transmission resource required for transmitting the V2X data in the following manner: the UE acquires the resource pool configuration information, the UE determines the transmission resource pool according to the transmission resource pool configuration information, and determines the transmission resource according to the transmission resource pool.
- the resource pool configuration information may be pre-configuration information, or may be configured by the access network device by using signaling.
- the resource pool configuration information indicates an available transmission resource pool, for example, a receiving resource pool or a sending resource pool.
- the UE may randomly select one resource pool from the available resource pool and select the resource pool from the resource pool. A resource is selected in the pool as a transmission resource to transmit data on the second carrier frequency, that is, corresponding data is received or transmitted.
- the transmission resource in the embodiment of the present invention may also be a dynamic transmission resource or a semi-static transmission resource.
- the UE may further determine, by using the following manner, the transmission resource required for transmitting the V2X data: the UE receives the resource scheduling information sent by the access network device, and determines the transmission resource according to the resource scheduling information, so that the UE may determine according to the second synchronization source.
- the transmission resource transmits data on the second carrier frequency.
- the resource scheduling information is used for dynamically scheduling resources or semi-static scheduling resources.
- the semi-persistent scheduling resource in the embodiment of the present invention may be a resource number when the first scheduling is specified, and a change rule or a period of the resource number of each scheduling is specified, thereby implementing a semi-static resource scheduling by the number of fixed resources.
- the dynamic scheduling resource in the embodiment of the present invention refers to dynamically scheduling a resource every time the resource is used.
- the clock of the second synchronization source is used as the same The reference clock of the step is determined.
- the UE uses the transmission resource to transmit data on the transmission carrier frequency (for example, the second carrier frequency) according to the second synchronization source determined in step 204, and the device X receives the data transmitted by the UE on the second carrier frequency.
- the transmission carrier frequency for example, the second carrier frequency
- the UE may transmit data on the transmission carrier frequency, and may refer to the UE transmitting data, and may also refer to the UE receiving data, and the corresponding transmission resource may be a sending resource or a receiving resource.
- the UE transmits data on the second carrier frequency to perform data transmission between the UE and other devices (for example, device X).
- the UE in the embodiment of the present invention may be an in-vehicle device, and the device X may be an in-vehicle device, a network, a roadside infrastructure, a pedestrian terminal, or the like.
- the data transmitted between the UE and the device X may be V2X data.
- the UE sends the indication information of the synchronization failure to the eNB, and the eNB receives the indication information of the synchronization failure sent by the UE.
- Step 206 is an optional step.
- the UE may feed back indication information to the eNB to indicate that the synchronization of the UE with the first synchronization source fails.
- the UE feeds back the synchronization failure to the eNB, so that the eNB does not need to send signaling, configuration resources, and the like to the UE, thereby reducing the signaling pin.
- the eNB may also send new synchronization source configuration information to the eNB, and may alternatively be the second synchronization source configuration information.
- step 206 may be performed before the step 204 of re-determining the new second synchronization source, and may also be performed after the step 204, and may also be performed simultaneously with the step 204, which is not limited by the embodiment of the present invention.
- the UE sends the identifier information of the second synchronization source to the eNB, where the eNB receives the identifier information of the second synchronization source sent by the UE.
- Step 207 is an optional step.
- the UE may further send the identifier information of the second synchronization source to the eNB, where the identifier information of the second synchronization source may carry the second synchronization source.
- an identifier configured to instruct the UE to use a clock of the second synchronization source as a synchronization clock required to transmit data at the second carrier frequency.
- the eNB may record related information of the synchronization source (ie, the second synchronization source) of the current UE in the eNB, so that the eNB acquires a new synchronization source, and uses the new synchronization.
- the source clock acts as the synchronization clock for the configuration resource.
- the data in the embodiment of the present invention may be V2X data.
- the user equipment determines the synchronization source required for the transmission data according to the synchronization source information configured by the base station, and after the UE and the synchronization source are out of synchronization, re-determine the new synchronization source, and use the new source.
- the synchronization source performs data transmission, so that the frequency of the transmission carrier frequency and the service carrier frequency are different, and the UE can still achieve normal data transmission after the original synchronization source is out of synchronization.
- step 207 may be located at any time after the new second synchronization source is re-determined in step 204, for example, step 207 is performed before the data is transmitted in step 205, after the data is transmitted in step 205, or simultaneously with step 205, this embodiment of the present invention No restrictions.
- FIG. 3 is a schematic interaction flowchart of a method for transmitting data according to another embodiment of the present invention.
- the access network device in the embodiment of the present invention uses the eNB as an example, and the transmitted data takes V2X data as an example, and the information exchange between the UE and the eNB is taken as an example to describe the data transmission.
- the eNB sends the first synchronization source configuration information to the user equipment UE by using the first carrier frequency, and the UE receives the first synchronization source configuration information sent by the eNB by using the first carrier frequency.
- the first synchronization source configuration information may carry the identifier of the first synchronization source.
- the eNB is deployed in the first carrier frequency, and the UE (for example, the eNB) receives the first synchronization source configuration information sent by the base station, and may synchronize with the first synchronization source according to the first synchronization source configuration information, and according to the first synchronization source,
- the second carrier frequency is used for data transmission.
- the UE sends indication information to the eNB on the first carrier frequency, and the eNB receives the indication information sent by the UE on the first carrier frequency.
- the indication information is used to indicate that the synchronization failure of the UE with the first synchronization source. After the UE detects the synchronization failure with the first synchronization source, the indication information may be sent to the eNB.
- the method for determining the synchronization failure by the UE is described with reference to the description in step 203 of FIG. 2. To avoid repetition, details are not described herein again.
- the access network device in the embodiment of the present invention after configuring the synchronization source for the UE, may receive the indication information that the synchronization failure of the UE and the synchronization source is invalid after the UE and the synchronization source are invalid, so that after the UE and the synchronization source are invalid, The access network device may not send signaling to the UE according to the indication information to configure a resource corresponding to the first synchronization source for the UE, which can save signaling overhead.
- the eNB may send the second synchronization source configuration information to the UE on the first carrier frequency, where the UE receives the second synchronization source configuration information sent by the eNB.
- the second synchronization source configuration information is used by the UE to determine the second synchronization source according to the second synchronization source configuration information after the synchronization with the first synchronization source fails, and transmit the data on the second carrier frequency according to the second synchronization source, first The frequency of the carrier frequency is different from the frequency of the second carrier frequency.
- Step 303 is an optional step.
- the eNB may reconfigure the synchronization source for the UE, for example, send the second synchronization source configuration information to the UE on the first carrier frequency.
- the second synchronization source configuration information may include an identifier of the second synchronization source, and after receiving the second synchronization source configuration information, the UE may synchronize with the second synchronization source according to the second synchronization source configuration information, and then according to the second synchronization source.
- the data is continuously transmitted on the second carrier frequency to ensure normal data transmission.
- the eNB may receive the identifier information of the second synchronization source sent by the UE, so that the base station acquires the new identifier.
- the identifier of the synchronization source ie, the second synchronization source
- Step 303 is an optional step.
- the access network device (for example, the eNB) may further send the second synchronization source configuration information to the UE on the first carrier frequency, where the second synchronization source configuration information is used by the UE in the first synchronization source.
- the second synchronization source is determined according to the second synchronization source configuration information, and the data is transmitted on the second carrier frequency according to the second synchronization source, and the frequency of the first carrier frequency and the frequency of the second carrier frequency are different. This ensures that after the synchronization of the UE with the first synchronization source fails, the access network device can know the new synchronization source (for example, the second synchronization source) to configure the transmission resource corresponding to the second synchronization source.
- the new synchronization source for example, the second synchronization source
- the access network device may send a transmission resource corresponding to the second synchronization source to the UE, and send the transmission resource to the UE, so that the UE transmits the transmission resource according to the second synchronization source.
- the data can be such that the UE can still perform normal data transmission after the synchronization of the first synchronization source fails.
- the data is an in-vehicle device communicating data with other devices V2X.
- the apparatus 40 of FIG. 4 includes a receiving unit 41, a processing unit 42, and a transmission unit 43.
- the receiving unit 41 is configured to receive first synchronization source configuration information by using a first carrier frequency, where the first synchronization source configuration information is used to determine the first synchronization source.
- the processing unit 42 is configured to determine, according to the first synchronization source configuration information received by the receiving unit, the first synchronization source, to determine a synchronization failure with the first synchronization source, and determine the second synchronization source and the transmission resource.
- the first synchronization source is used to provide a synchronous clock required to transmit data on the second carrier frequency, and the frequency of the first carrier frequency The frequency of the point and the second carrier frequency are different.
- the transmitting unit 43 is configured to transmit data on the second carrier frequency according to the second synchronization source determined by the processing unit and using the transmission resource.
- the user equipment determines the required synchronization source for transmitting data according to the synchronization source information configured by the base station, and after the UE and the synchronization source are out of synchronization, re-determines a new synchronization source, and uses the new synchronization source for data transmission.
- the frequency of the transmission carrier frequency and the service carrier frequency can be different, and after the UE and the original synchronization source are out of synchronization, the normal transmission of data can still be realized.
- the apparatus for transmitting data according to the embodiment of the present invention may correspond to specific steps and execution procedures of the UE in the method for transmitting data according to the embodiment of the present invention, and each unit/module in the apparatus and the other operations and/or functions described above are respectively The corresponding process of the UE in the method shown in FIG. 2 is implemented. For brevity, details are not described herein again.
- the receiving unit may be a receiver
- the processing unit may be a processor
- the transmitting unit may be a transmitter.
- the receiver, the processor, and the transmitter may be used to perform the methods performed by the receiving unit, the processing unit, and the transmitting unit, respectively. To avoid repetition, details are not described in detail.
- FIG. 5 is a block diagram of an apparatus for transmitting data in accordance with another embodiment of the present invention.
- the apparatus of FIG. 5 may perform the steps performed by the eNB in the method embodiments of FIGS. 2 and 3.
- the apparatus 50 of FIG. 5 includes a transmitting unit 51 and a receiving unit 52.
- the sending unit 51 is configured to send the first synchronization source configuration information to the user equipment UE by using the first carrier frequency.
- the first synchronization source configuration information carries an identifier of the first synchronization source, and the first configuration information is used to determine the first synchronization source.
- the receiving unit 52 is configured to receive the indication information sent by the UE.
- the indication information is used to indicate synchronization failure of the UE with the first synchronization source, and the first synchronization source is configured to provide the UE with a synchronization clock for transmitting data on the second carrier frequency, a frequency of the first carrier frequency, and a frequency of the second carrier frequency. The point is different.
- the access network device can receive the indication information that the synchronization failure of the UE and the synchronization source is invalid after the UE and the synchronization source are invalid.
- the network access device may not send signaling to the UE according to the indication information to configure resources corresponding to the first synchronization source for the UE, which can save signaling overhead.
- the sending unit 51 is further configured to send the second synchronization source configuration information to the UE on the first carrier frequency.
- the second synchronization source configuration information is used by the UE to determine the second synchronization source according to the second synchronization source configuration information after the synchronization with the first synchronization source fails, and transmit the data on the second carrier frequency according to the second synchronization source.
- the eNB may reconfigure the synchronization source for the UE.
- the second synchronization source configuration information is sent to the UE on the first carrier frequency.
- the second synchronization source configuration information may include an identifier of the second synchronization source, and after receiving the second synchronization source configuration information, the UE may synchronize with the second synchronization source according to the second synchronization source configuration information, and then according to the second synchronization source.
- the data is continuously transmitted on the second carrier frequency to ensure normal data transmission.
- the apparatus for transmitting data according to the embodiment of the present invention may correspond to the specific steps and execution flow of the eNB in the method for transmitting data according to the embodiment of the present invention, and the respective units/modules in the apparatus and the other operations and/or functions described above are respectively
- the corresponding process of the eNB in the method shown in FIG. 3 is implemented. For brevity, details are not described herein again.
- the receiving unit may be a receiver and the transmitting unit may be a transmitter.
- the receiver and the transmitter can be used to perform the method performed by the receiving unit and the sending unit, respectively, and the details are not described in detail in order to avoid repetition.
- FIG. 6 is a block diagram of an apparatus for transmitting data according to another embodiment of the present invention.
- the apparatus 60 of FIG. 6 includes a transmitter 61, a receiver 62, and a processor 63.
- Processor 63 controls the operation of device 60 and can be used to process signals.
- the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 63 or implemented by the processor 43.
- each step of the above method may be completed by an integrated logic circuit of hardware in the processor 63 or an instruction in the form of software.
- the processor 63 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can be implemented or executed in an embodiment of the invention.
- a general purpose processor can be a microprocessor or any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the receiver 62 can receive the first synchronization source configuration information on the first carrier frequency.
- the first synchronization source configuration information is used to determine the first synchronization source.
- the processor 63 may determine the first synchronization source according to the first synchronization source configuration information, may also determine a synchronization failure with the first synchronization source, and determine the second synchronization source and the transmission resource.
- the first synchronization source is used to provide the UE with a synchronization clock required for transmitting data on the second carrier frequency, and the frequency of the first carrier frequency and the frequency of the second carrier frequency are different.
- the transmitter 61 can transmit data on the second carrier frequency using the transmission resource according to the second synchronization source.
- the user equipment determines the transmission data according to the synchronization source information configured by the base station.
- the required synchronization source after the UE and the synchronization source are out of step, re-determine the new synchronization source, and use the new synchronization source for data transmission, so that the frequency of the transmission carrier frequency and the service carrier frequency can be different, and the UE After the original synchronization source is out of step, the normal transmission of data can still be achieved.
- the apparatus for transmitting data according to the embodiment of the present invention may correspond to specific steps and execution procedures of the UE in the method for transmitting data according to the embodiment of the present invention, and each unit/module in the apparatus and the other operations and/or functions described above are respectively The corresponding process of the UE in the method shown in FIG. 2 is implemented. For brevity, details are not described herein again.
- FIG. 7 is a block diagram of an apparatus for transmitting data in accordance with another embodiment of the present invention.
- the apparatus 70 of FIG. 7 includes a transmitter 71 and a receiver 72.
- the transmitter 71 may send the first synchronization source configuration information to the user equipment UE by using the first carrier frequency, where the first synchronization source configuration information carries the identifier of the first synchronization source, and the first synchronization source configuration information is used to determine the first synchronization. source.
- the receiver 72 may receive the indication information sent by the UE, where the indication information is used to indicate synchronization failure of the UE with the first synchronization source, where the first synchronization source is used to provide the UE with a synchronization clock required for transmitting data on the second carrier frequency,
- the frequency of one carrier frequency is different from the frequency of the second carrier frequency.
- the access network device in the embodiment of the present invention after configuring the synchronization source for the UE, may receive the indication information that the synchronization failure of the UE and the synchronization source is invalid after the UE and the synchronization source are invalid, so that after the UE and the synchronization source are invalid, The access network device may not send signaling to the UE according to the indication information to configure a resource corresponding to the first synchronization source for the UE, which can save signaling overhead.
- the transmitter 71 may also send the second synchronization source configuration information to the UE on the first carrier frequency.
- the second synchronization source configuration information is used by the UE to determine the second synchronization source according to the second synchronization source configuration information after the synchronization with the first synchronization source fails, and transmit the data on the second carrier frequency according to the second synchronization source.
- the apparatus for transmitting data according to the embodiment of the present invention may correspond to the specific steps and execution flow of the eNB in the method for transmitting data according to the embodiment of the present invention, and the respective units/modules in the apparatus and the other operations and/or functions described above are respectively
- the corresponding process of the eNB in the method shown in FIG. 3 is implemented. For brevity, details are not described herein again.
- the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
- the implementation process constitutes any limitation.
- B corresponding to A means that B is associated with A, and B can be determined according to A.
- determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
- 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.
- the mutual coupling or direct coupling or communication connection shown or discussed 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 various embodiments of the present invention may be integrated in one processing unit
- 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, which can store program codes. .
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Abstract
Description
Claims (30)
- 一种传输数据的方法,其特征在于,包括:用户设备UE在第一载频上接收第一同步源配置信息,所述第一同步源配置信息用于确定第一同步源;所述UE根据所述第一同步源配置信息确定第一同步源,所述第一同步源用于为所述UE提供在第二载频上传输数据所需的同步时钟,所述第一载频的频点和所述第二载频的频点不同;所述UE确定与所述第一同步源的同步失效;所述UE确定第二同步源和传输资源;所述UE根据所述第二同步源使用所述传输资源在所述第二载频上传输所述数据。
- 如权利要求1所述的方法,其特征在于,所述UE确定与所述第一同步源的同步失效包括以下任一种:所述UE的同步计时器超过设定时间,所述UE仍未收到所述第一同步源的同步信号时,所述UE确定与所述第一同步源的同步失效;所述UE接收的所述第一同步源的同步信号的强度小于第一预设门限值时,所述UE确定与所述第一同步源的同步失效;所述UE在指定时长T内接收到的所述第一同步源的同步信号的平均强度小于第二预设门限值时,所述UE确定与所述第一同步源的同步失效。
- 如权利要求1所述的方法,其特征在于,所述UE确定与所述第一同步源的同步失效包括:所述UE检测到所述第二同步源,所述第二同步源的信号强度大于第三预设门限值,且所述第二同步源的优先级高于所述第一同步源的优先级时,所述UE确定与所述第一同步源的同步失效。
- 如权利要求3所述的方法,其特征在于,所述方法还包括:所述UE根据第一预配置信息确定所述第一同步源和所述第二同步源的优先级;或者,所述UE在所述第一载频上接收广播消息,根据所述广播消息确定所述第一同步源和所述第二同步源的优先级;或者,所述UE在所述第一载频上接收无线资源控制RRC专用信令,根据所述RRC专用信令确定所述第一同步源和所述第二同步源的优先级。
- 如权利要求1-4中任一项所述的方法,其特征在于,所述UE确定第二同步源和传输资源包括:所述UE通过预配置信息或通过在所述第一载频上接收的信令配置信息获取第二同步源配置信息,所述第二同步源配置信息携带所述第二同步源的标识,所述UE根据所述第二同步源的标识确定所述第二同步源;或者,所述UE将所述UE的时钟作为所述第二同步源。
- 如权利要求1-5中任一项所述的方法,其特征在于,所述UE确定第二同步源和传输资源包括:所述UE获取资源池配置信息,所述资源池配置信息是预配置或根据在所述第一载频上接收的信令配置信息得到的;所述UE根据所述资源池配置信息确定传输资源池,并根据所述传输资源池确定所述传输资源。
- 如权利要求1-5中任一项所述的方法,其特征在于,所述UE确定第二同步源和传输资源包括:所述UE在所述第一载频上接收资源调度信息;所述UE根据所述资源调度信息确定所述传输资源,所述资源调度信息为动态调度信息或半静态调度信息。
- 如权利要求1-7中任一项所述的方法,其特征在于,所述方法还包括:在所述UE确定与所述第一同步源的同步失效之后,所述UE在所述第一载频上向接入网设备发送指示信息,所述指示信息用于指示所述UE与所述第一同步源的同步失效。
- 如权利要求1-8中任一项所述的方法,其特征在于,所述方法还包括:所述UE在所述第一载频上向所述接入网设备发送所述第二同步源的标识信息,其中,所述第二同步源的标识信息用于指示所述UE当前的同步源。
- 如权利要求1-9中任一项所述的方法,其特征在于,所述第一同步源的标识信息携带所述第一同步源的标识,其中,所述UE根据所述第一同步源配置信息确定第一同步源包括:所述UE根据所述第一同步源的标识信息确定所述第一同步源。
- 如权利要求1-10中任一项所述的方法,其特征在于,所述第一同步 源为全球导航卫星系统GNSS。
- 如权利要求1-11中任一项所述的方法,其特征在于,所述UE根据所述第二同步源使用所述传输资源在所述第二载频上传输所述数据包括:所述UE根据所述第二同步源在所述第二载频上采用直连通信的方式传输所述数据。
- 如权利要求1-12中任一项所述的方法,其特征在于,所述数据为车载设备与其它设备V2X通信数据。
- 一种传输数据的方法,其特征在于,包括:接入网设备通过第一载频向用户设备UE发送第一同步源配置信息,所述第一同步源配置信息携带第一同步源的标识,所述第一同步源配置信息用于确定所述第一同步源;所述接入网设备在第一载频上接收所述UE发送的指示信息,所述指示信息用于指示所述UE与所述第一同步源的同步失效,所述第一同步源用于为所述UE提供在第二载频上传输数据所需的同步时钟,所述第一载频的频点和所述第二载频的频点不同。
- 如权利要求14所述的方法,其特征在于,所述方法还包括:所述接入网设备在所述第一载频上向所述UE发送第二同步源配置信息,所述第二同步源配置信息用于所述UE在与所述第一同步源的同步失效后,根据所述第二同步源配置信息确定第二同步源,并根据所述第二同步源在第二载频上传输数据。
- 一种传输数据的装置,其特征在于,包括:接收单元,用于在第一载频接收第一同步源配置信息,所述第一同步源配置信息用于确定第一同步源;处理单元,用于根据所述接收单元接收的所述第一同步源配置信息确定第一同步源,所述第一同步源用于提供在第二载频上传输数据所需的同步时钟,所述第一载频的频点和所述第二载频的频点不同;所述处理单元,还用于确定与所述第一同步源的同步失效;所述处理单元,还用于确定第二同步源和传输资源;传输单元,用于根据所述处理单元确定的所述第二同步源并使用所述传输资源在所述第二载频上传输所述数据。
- 如权利要求16所述的装置,其特征在于,所述处理单元具体用于 通过下列任一种方式确定与所述第一同步源的同步失效:在同步计时器超过设定时间,仍未收到所述第一同步源的同步信号时,确定与所述第一同步源的同步失效;在接收的所述第一同步源的同步信号的强度小于第一预设门限值时,确定与所述第一同步源的同步失效;在指定时长T内接收到的所述第一同步源的同步信号的平均强度小于第二预设门限值时,确定与所述第一同步源的同步失效。
- 如权利要求16所述的装置,其特征在于,所述处理单元用于在检测到所述第二同步源,所述第二同步源的信号强度大于第三预设门限值,且所述第二同步源的优先级高于所述第一同步源的优先级时,确定与所述第一同步源的同步失效。
- 如权利要求18所述的装置,其特征在于,所述处理单元还用于根据第一预配置信息确定所述第一同步源和所述第二同步源的优先级,或者,在所述第一载频上接收广播消息,根据所述广播消息确定所述第一同步源和所述第二同步源的优先级,或者,在所述第一载频上接收无线资源控制RRC专用信令,根据所述RRC专用信令确定所述第一同步源和所述第二同步源的优先级。
- 如权利要求16-19中任一项所述的装置,其特征在于,所述处理单元还用于通过预配置信息或通过在所述第一载频上接收的信令配置信息获取第二同步源配置信息,所述第二同步源配置信息携带所述第二同步源的标识,根据所述第二同步源的标识确定所述第二同步源,或者,所述方法由用户设备UE执行,将所述UE的时钟作为所述第二同步源。
- 如权利要求16-20中任一项所述的装置,其特征在于,所述处理单元具体用于获取资源池配置信息,所述资源池配置信息是预配置或在所述第一载频上接收的信令配置信息得到的,根据所述资源池配置信息确定传输资源池,并根据所述传输资源池确定所述传输资源。
- 如权利要求16-20中任一项所述的装置,其特征在于,所述处理单元具体用于在所述第一载频上接收资源调度信息,根据所述资源调度信息确定所述传输资源,所述资源调度信息为动态调度信息或半静态调度信息。
- 如权利要求16-22中任一项所述的装置,其特征在于,所述装置还包括:发送单元,用于在确定与所述第一同步源的同步失效之后,向所述接入 网设备发送指示信息,所述指示信息用于指示与所述第一同步源的同步失效。
- 如权利要求16-23中任一项所述的装置,其特征在于,所述装置为用户设备UE,所述发送单元还用于向所述接入网设备发送第二同步源的标识信息,其中,所述第二同步源的标识信息用于指示所述UE当前的同步源。
- 如权利要求16-24中任一项所述的装置,其特征在于,所述第一同步源的标识信息携带所述第一同步源的标识,所述处理单元具体用于根据所述第一同步源的标识信息确定所述第一同步源。
- 如权利要求16-25中任一项所述的装置,其特征在于,所述第一同步源为全球导航卫星系统GNSS。
- 如权利要求16-26中任一项所述的装置,其特征在于,所述传输单元具体用于根据所述第二同步源在所述第二载频上采用直连通信的方式传输数据。
- 如权利要求16-27中任一项所述的装置,其特征在于,所述数据为车载设备与其它设备V2X通信数据。
- 一种传输数据的装置,其特征在于,包括:发送单元,用于通过第一载频向用户设备UE发送第一同步源配置信息,所述第一同步源配置信息携带第一同步源的标识,所述第一同步源配置信息用于确定所述第一同步源;接收单元,用于在第一载频上接收所述UE发送的指示信息,所述指示信息用于指示所述UE与所述第一同步源的同步失效,所述第一同步源用于为所述UE提供在第二载频上传输数据所需的同步时钟,所述第一载频的频点和所述第二载频的频点不同。
- 如权利要求29所述的装置,其特征在于,所述装置还包括:所述发送单元还用于在所述第一载频上向所述UE发送第二同步源配置信息,所述第二同步源配置信息用于所述UE在与所述第一同步源的同步失效后,根据所述第二同步源配置信息确定第二同步源,并根据所述第二同步源在第二载频上传输数据。
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KR20220035875A (ko) * | 2019-07-18 | 2022-03-22 | 엘지전자 주식회사 | Nr v2x에서 동기화 기준을 선택하는 방법 및 장치 |
US11757706B2 (en) * | 2019-07-19 | 2023-09-12 | Razberi Secure Technologies, Llc | Switch monitoring system and method of use |
US11696241B2 (en) * | 2019-07-30 | 2023-07-04 | Qualcomm Incorporated | Techniques for synchronizing based on sidelink synchronization signal prioritization |
KR102354630B1 (ko) * | 2021-06-21 | 2022-01-25 | 에티포스 시오 | V2p 메시지를 송수신하기 위한 방법 및 장치 |
US11663907B2 (en) | 2021-06-21 | 2023-05-30 | Ettifos Co. | Method and apparatus for transmitting and receiving vehicle-to-pedestrian (V2P) message |
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KR102209453B1 (ko) | 2021-01-28 |
EP3484217A1 (en) | 2019-05-15 |
US20190174444A1 (en) | 2019-06-06 |
CN109479248A (zh) | 2019-03-15 |
JP2019531004A (ja) | 2019-10-24 |
CN110278606A (zh) | 2019-09-24 |
EP3855814A1 (en) | 2021-07-28 |
KR20190034603A (ko) | 2019-04-02 |
CN110278606B (zh) | 2020-07-24 |
JP6886511B2 (ja) | 2021-06-16 |
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