WO2019029739A1 - 一种多载频传输方法、设备及系统 - Google Patents

一种多载频传输方法、设备及系统 Download PDF

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Publication number
WO2019029739A1
WO2019029739A1 PCT/CN2018/100107 CN2018100107W WO2019029739A1 WO 2019029739 A1 WO2019029739 A1 WO 2019029739A1 CN 2018100107 W CN2018100107 W CN 2018100107W WO 2019029739 A1 WO2019029739 A1 WO 2019029739A1
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WIPO (PCT)
Prior art keywords
carrier frequency
identifier
transmission
receiving
information
Prior art date
Application number
PCT/CN2018/100107
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English (en)
French (fr)
Inventor
李明超
刘航
王和俊
于映辉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18845077.9A priority Critical patent/EP3595227B1/en
Publication of WO2019029739A1 publication Critical patent/WO2019029739A1/zh
Priority to US16/662,638 priority patent/US20200059982A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a multi-carrier frequency transmission method, device, and system.
  • V2X vehicle to X
  • V2V vehicle to vehicle
  • V2I vehicle to Infrastructure
  • V2P vehicle to pedestrian
  • V2N vehicle to network
  • LTE long term evolution
  • V2X direct communication Vehicles can not only communicate with their surrounding vehicles or people or infrastructure through their V2X direct communication, but also their own speed, direction of travel, specific location, whether or not they have stepped on emergency brakes, etc.
  • Vehicles share large-capacity data such as sensor data, video data, and map data.
  • the data volume of such services is larger than that of traditional V2X service data. It requires LTE-based V2X direct communication technology to support higher transmission for the sender. rate.
  • the transmitting end In order to achieve a higher transmission rate in V2X direct communication, for a transmitting end, when the number of service data is large, multiple carrier frequencies are selected to transmit service data (ie, by transmitting resources of multiple carrier frequencies) Aggregated together to increase the transmission rate of service data.
  • the receiving end its receiving capability is limited.
  • the transmitting end uses multiple carrier frequencies to simultaneously transmit data, it is easy to cause the receiving end to be unable to fully monitor due to limited capabilities.
  • the carrier frequency problem when the sender sends data a large number of packet loss occurs, which seriously affects the transmission performance. For example, as shown in FIG. 1, the transmitting end uses carrier frequency 1 and carrier frequency 2 for transmitting service data of a specified type.
  • the receiving end it is assumed that there are only two receiving chains, and are used to monitor carrier frequency 2 and carrier frequency 3.
  • the receiving end 2 cannot be limited due to the limited receiving capability.
  • the carrier frequency 1 is transmitted to the service of interest, and it continuously monitors the carrier frequency 2 and the carrier frequency 3. Therefore, all the service data on the carrier frequency 1 is missed, and a large number of packet loss occurs, which seriously affects the transmission performance.
  • the embodiment of the invention provides a multi-carrier frequency transmission method, device and system, which solves the problem that packet loss occurs in the existing multi-carrier frequency transmission, which seriously affects the transmission performance.
  • the embodiment of the present invention adopts the following technical solutions:
  • an embodiment of the present invention provides a multi-carrier transmission method, including:
  • the first terminal device obtains the first direct link data, and sends the first direct link data and the first indication information to the second terminal device on the first transmission carrier frequency, where the first indication information is used to indicate the first
  • the terminal device transmits the second direct link data by using at least one second transmission carrier frequency.
  • the first terminal device and the second terminal device can communicate in a direct connection manner, the first terminal device can be a transmitting end, and the second terminal device can be a receiving end.
  • the transmitting end and the receiving end are relative concepts, and the transmitting end refers to a terminal device that sends data or information to the opposite end.
  • the receiving end refers to a terminal device that receives data or information sent by the opposite end.
  • the first direct link data and the second direct link data may be the same type of data or different types of service data, and the first direct link data and the second direct link data may be The same data can also be different data.
  • the first transmission carrier frequency and the at least one second transmission carrier frequency are different transmission carrier frequencies between the first terminal device and the second terminal device for carrying data and/or information.
  • the transmitting end when the transmitting end sends data to the opposite end through the multi-transport carrier frequency, the transmitting end sends the indication information to the opposite end to indicate that the transmitting end uses the multi-transport carrier frequency to transmit data, so as to receive According to the indication information, the terminal knows that the transmitting end uses the multi-transport carrier frequency to transmit data, and adjusts the receiving chain corresponding to the multi-transport carrier frequency to receive the corresponding data, thereby avoiding the packet loss caused by the receiving end leaking the carrier frequency and improving the data transmission performance. .
  • the first terminal device may send the first direct connection data and the first indication information to the second terminal device in any of the following manners:
  • Manner 1 The first direct link data and the first indication information are included in a media access control protocol data unit (MAC PDU), and the first terminal device sends the data on the first transmission carrier frequency.
  • the MAC PDU sends the first direct link data and the first indication information to the second terminal device.
  • the format of the MAC PDU is as shown in FIG. 5a, and may include a MAC header and a MAC payload.
  • the MAC payload may include the first indication information and the first direct link data, and the MAC header may be a dedicated MAC address.
  • the dedicated MAC sub-header is used to indicate the first indication information included in the MAC payload, and the location of the first indication information in the MAC payload.
  • the dedicated MAC subheader may be a dedicated logical channel identify (LCID).
  • LCID dedicated logical channel identify
  • the MAC PDU shown in FIG. 5a may further include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, the source.
  • the address and destination address can be used to indicate the type of service of the direct link data carried by the MAC PDU.
  • the first terminal device determines that the direct link data is sent by using at least K (K is greater than or equal to 1) transmission carrier frequencies, and may be used as a trigger for the MAC PDU to carry the dedicated sub-header and the first indication information.
  • the first terminal device sends the dedicated MAC sub-header and the first indication information in the MAC PDU to the second terminal device, when the first terminal device determines to use the at least K transmission carrier frequency to send the direct link data. Otherwise, the dedicated MAC subheader and the first indication information are not transmitted.
  • the first terminal device obtains the K value by means of pre-configuration, network configuration or protocol normalization.
  • FIG. 5a is only an example of a MAC PDU.
  • the MAC PDU may include other content in addition to the content shown in FIG. 5a, which is not limited in this embodiment of the present invention.
  • Mode 2 The first direct link data and the first indication information are included in a media access control protocol data unit (MAC PDU), and the first terminal device sends the data on the first transmission carrier frequency.
  • the MAC PDU sends the first direct link data and the first indication information to the second terminal device.
  • the format of the MAC PDU is as shown in FIG. 5b, and may include a MAC header and a MAC payload.
  • the MAC payload may include first direct link data
  • the MAC header may include first indication information.
  • the MAC PDU shown in FIG. 5b may further include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, the source.
  • the address and destination address can be used to indicate the type of service of the direct link data carried by the MAC PDU.
  • the first indication information may occupy a fixed bit of the MAC header and become a fixed component of the MAC header.
  • the version identifier of the MAC PDU is a fixed value
  • the first indication information must be sent in the MAC PDU each time.
  • the first terminal device determines to use the at least one transmission carrier frequency to transmit the direct link data
  • the first terminal device sends the first indication information to the second terminal device by carrying the first indication information in the fixed bit of the MAC header.
  • the first terminal device does not determine to use the at least one transmission carrier frequency to transmit the direct link data
  • the first terminal device fills the fixed bit used to carry the first indication information with 0 or other information, indicating that the first terminal device No multi-carrier transmission is performed.
  • the first indication information may be carried in a dedicated MAC Control Element in the MAC header, and the MAC control element may be identified by using a dedicated logical channel identifier.
  • FIG. 5b is only an example of a MAC PDU.
  • the MAC PDU may include other content in addition to the content shown in FIG. 5b, which is not limited in this embodiment of the present invention.
  • Mode 3 As shown in FIG. 5c, the first indication information is included in scheduling assignment (SA) data corresponding to the first direct link data, where the first direct link data is included in the MAC PDU, Transmitting, by the terminal device, the first direct link data to the second terminal device by transmitting the MAC PDU on the first transmission carrier frequency, and transmitting the first indication information to the second terminal device by sending the SA data on the first transmission carrier frequency .
  • SA scheduling assignment
  • the SA data may include control information related to the first direct link data transmission, such as: time-frequency resource location, adjustment coding mode, service priority, and transmission interval period.
  • the MAC PDU may include a MAC header and a MAC payload, and the MAC payload may include the first direct link data, and the MAC header may include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, and the source The address and destination address can be used to indicate the type of service of the direct link data carried by the MAC PDU.
  • FIG. 5c is only an example of a MAC PDU.
  • the SA data may include other content in addition to the content shown in FIG. 5c.
  • the MAC PDU may further include other content, which is not limited in this embodiment of the present invention.
  • the first terminal device may carry the first direct link data and the first indication information in the MAC PDU, or the MAC PDU and the SA data, and send the first to the second terminal device by using the MAC PDU or the MAC PDU and the SA data.
  • the direct link data and the first indication information are encapsulated in the existing data format for transmission, and the first indication information is not transmitted by developing a new information format, thereby reducing design complexity.
  • the first indication information in the foregoing manners 1 to 3 may be frequency point information of at least one second transmission carrier frequency, where the frequency band information is used to identify at least one second transmission carrier frequency, such as: The carrier frequency identifier of the at least one second transmission carrier frequency or the index number corresponding to the at least one transmission carrier frequency.
  • the first indication information in the foregoing manners 1 to 3 may also be a bit string including at least one bit, at least one bit corresponding to at least one second transmission carrier frequency, and information carried by each bit is used for indicating Whether the first terminal device transmits the second direct link data by using the second transmission carrier frequency corresponding to the bit; the correspondence between the at least one bit and the at least one second transmission carrier frequency is pre-configured, or at least one bit
  • the correspondence between the at least one second transmission carrier frequency is configured by the network, or the correspondence between the at least one bit and the at least one second transmission carrier frequency is protocol-specific.
  • the first indication information in the foregoing manners 1 to 3 may be information indicating whether the first terminal device uses the multi-transport carrier frequency to transmit the direct link data, and does not specify which transport carrier frequencies are specifically used by the first terminal device.
  • Send direct link data may be a 1-bit (bit) indication information, for example, the number of bits 0 may be used to indicate that the first terminal device does not use the multi-carrier transmission direct link data, and the first terminal is represented by the bit number 1.
  • the device uses multiple carrier frequencies to transmit direct link data.
  • the first indication information in the foregoing manners 1 to 3 may be the value of the transmission carrier frequency used, and the transmission carrier frequency value is used to indicate the number of transmission carrier frequencies used by the first terminal device.
  • the first indication information indicates that the first terminal uses K transmission carrier frequencies, and the first terminal uses the first K transmission carrier frequency transmissions according to the transmission priority.
  • the transmission carrier frequency (including the second transmission carrier frequency, which may also include the first transmission carrier frequency) and the corresponding priority may be obtained by pre-configuration, network configuration or protocol normalization.
  • the carrier frequency value may or may not be included in the first transmission carrier frequency.
  • the first indication information can be designed in any of the above manners, thereby improving the flexibility of information transmission.
  • the data sent by the first terminal on the first transmission carrier frequency and the second transmission carrier frequency may be data of the same service type.
  • the MAC PDU where the first direct link data is located may include the first service identifier information, and the second straight
  • the MAC PDU in which the link data is located may include the second service identifier information, where the first service identifier information is the same as the second service identifier information.
  • the first service identifier information is used to identify the service type of the first direct link data
  • the second service identifier information is used to identify the service type of the second direct link data, the first service identifier information, and the second service identifier.
  • the information may include at least one of the following: a source address, a destination address, a service type identifier, a priority identifier, a direct link bearer identifier, a logical channel identifier, and a flow identifier.
  • first direct link data and the second direct link data may be different types of service data, and the first service identifier information and the second service identifier information may be different.
  • the service identifier information indicating the service type of the direct link data may be carried in the MAC PDU where the direct link data is located, so that the second terminal device receives the direct link data according to the service identifier.
  • the information identifies the service type of the received direct link data. If it is the service data of its own interest, the received direct link data is transmitted to the upper layer for processing, otherwise, it is not processed.
  • the method may further include:
  • the first terminal device acquires carrier frequency configuration information, where the carrier frequency configuration information includes a first transmission carrier frequency identifier and at least one second transmission carrier frequency identifier, where the first transmission carrier frequency identifier is used to identify the first transmission carrier frequency, at least one The second transmission carrier identifier is used to identify at least one second transmission carrier frequency, and the transmission priority of the first transmission carrier frequency is higher than any of the second transmission carrier frequencies of the at least one second transmission carrier frequency.
  • the first terminal device may obtain the carrier frequency configuration information from the access network device, where the carrier frequency configuration information may be included in a radio resource control (RRC) dedicated signaling or a system message, that is, the first terminal.
  • RRC radio resource control
  • the device can obtain carrier frequency configuration information by using RRC dedicated signaling or system message sent by the access network device.
  • the first terminal device may also obtain carrier frequency configuration information from the core network device.
  • the carrier frequency configuration information is used by the first terminal device to determine, according to the carrier frequency configuration information, a transmission carrier frequency used when transmitting direct link data.
  • the first terminal device sends the first direct link data with the first transmission carrier frequency with the highest transmission priority according to the carrier frequency configuration information; when the first terminal device determines to adopt other transmissions than the first transmission carrier frequency
  • the carrier frequency transmits the second direct link data
  • the first terminal device sends the second direct link data by using the second transmission carrier frequency whose transmission priority is lower than the first transmission carrier frequency according to the carrier frequency configuration information.
  • the first terminal device may be configured according to a MAC layer of a first terminal device or a radio link control (RLC) layer or a packet data convergence protocol (PDCP) layer or at least one data cache in an upper layer.
  • RLC radio link control
  • PDCP packet data convergence protocol
  • the amount, or network indication, or upper layer indication, or other predetermined rule determines whether to transmit the second direct link data using a transmission carrier frequency other than the first transmission carrier frequency.
  • the first terminal device may transmit the direct link data according to the carrier frequency configuration information by using a suitable transmission carrier frequency, for example, important information (such as the first indication information) has the highest priority.
  • the first transmission carrier frequency is transmitted, so that the second terminal device receives the first indication information well, and improves data transmission performance.
  • the transmission carrier frequency identifiers are arranged in descending order of transmission priority of the transmission carrier frequency;
  • the transmission carrier identifiers are arranged in descending order of transmission priority of the transmission carrier frequency;
  • the carrier frequency configuration information further includes a first transmission priority identifier and at least one second transmission priority identifier, wherein the first transmission priority identifier corresponds to the first transmission carrier identifier, and the at least one second transmission priority identifier and the at least one
  • the second transmission carrier identifier has a one-to-one correspondence, and the transmission priority corresponding to the first transmission priority identifier is higher than the transmission priority corresponding to any second transmission priority identifier of the at least one second transmission priority identifier.
  • the first transmission priority identifier may be a number, or a letter, or other identifier; for example, the highest priority may be identified by the number 1 or the letter A.
  • the first terminal device can determine the highest priority transmission carrier frequency and the second highest priority transmission carrier frequency according to the transmission carrier identifier and the priority corresponding to the transmission carrier frequency identifier.
  • the carrier frequency configuration information may further include third service identification information and at least one fourth service identification information;
  • the at least one fourth service identification information is in one-to-one correspondence with the at least one second transmission carrier frequency identifier; the third service identifier is used to indicate the direct link data sent on the transmission carrier frequency identified by the first transmission carrier frequency identifier. And a service type, where each fourth service identifier information is used to indicate a service type of the direct link data sent on the transport carrier frequency identified by the second transport carrier identifier corresponding to the fourth service identifier information.
  • the service identifier information and the third service identifier information of the at least one fourth service identifier information may be the same or different, and the third service identifier information and the fourth service identifier information include at least one of the following information: , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the first terminal device may transmit the direct link data corresponding to the service identifier information on the transmission carrier frequency according to the service identifier information corresponding to the transmission carrier frequency, and may also carry the service identifier information in the direct connection.
  • the MAC PDU in which the link data is located is transmitted together to the second terminal device.
  • the service identifier information when the service identifier information is sent to the second terminal device in the MAC PDU where the direct link data is located, the service identifier information may be obtained by the first terminal device from the carrier frequency configuration information.
  • the service identifier information corresponding to the frequency for example, the first service identifier information may be the third service identifier information, and the second service identifier information may be the fourth service identifier information.
  • the method further includes:
  • the first terminal device sends the SA data corresponding to the second direct link data to the second terminal device, where the SA data corresponding to the second direct link data can be used to indicate the data related to the second direct link data transmission.
  • Control information (such as time-frequency resource location, adjustment coding mode, service priority, transmission time interval, etc.), so that when the second terminal device receives the SA data, it receives the second direct link according to the control information indicated by the SA data. data.
  • the method further includes:
  • the first terminal device acquires the first direct link data from the upper layer.
  • the upper layer may be: an RLC layer or a PDCP layer of the first terminal device.
  • the first terminal device may obtain the primitive information corresponding to the first direct link data from the upper layer, where the primitive information may include
  • the information indicating the transmission parameter and the service characteristic of the first direct link data may include information such as a source address and a destination address, and the target address may have a mapping relationship with a service type of the first direct link data.
  • Each type of direct link data sent by the upper layer corresponds to at least one target address.
  • the embodiment of the present invention provides a first terminal device, including:
  • An obtaining unit configured to acquire first direct link data
  • a sending unit configured to send the first direct link data and the first indication information acquired by the acquiring unit to the second terminal device on the first transmission carrier frequency, where the first indication information is used to indicate that the first terminal device uses
  • the at least one second transmission carrier transmits the second direct link data.
  • the first terminal device For a specific implementation manner of the first terminal device, reference may be made to the behavior of the first terminal device in the multi-carrier transmission method provided by the foregoing aspect or the possible implementation manner of the foregoing aspect, and details are not described herein again. Therefore, the first terminal device provided in this aspect can achieve the same advantageous effects as the above aspects.
  • the embodiment of the present invention provides a first terminal device, where the first terminal device can implement the functions performed by the first terminal device in the foregoing method embodiment, where the function can be implemented by hardware or by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the first terminal device includes a processor and a transceiver, and the processor is configured to support the first terminal device to perform a corresponding function in the foregoing method.
  • the transceiver is configured to support communication between the first terminal device and other network elements.
  • the first terminal device can also include a memory for coupling with the processor that retains the program instructions and data necessary for the first terminal device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the first terminal device, the computer software instructions comprising a program for performing the solution of the above aspect.
  • an embodiment of the present invention provides a computer program product storing computer software instructions for use by the first terminal device, the computer software instructions comprising a program for performing the solution of the above aspect.
  • an embodiment of the present invention provides a device, which is in the form of a product of a chip.
  • the device includes a processor and a memory, and the memory is coupled to the processor to save necessary program instructions of the device and Data, the processor is operative to execute program instructions stored in the memory such that the apparatus performs the functions corresponding to the first terminal device in the above method.
  • an embodiment of the present invention provides a multi-carrier frequency transmission method, including:
  • the second terminal device receives the first direct link data and the first indication information sent by the first terminal device on the first receiving carrier frequency, and receives the second direct link data on the at least one second receiving carrier frequency, where The first indication information is used to indicate that the first terminal device sends the second direct link data by using the at least one second receiving carrier frequency.
  • the first terminal device and the second terminal device can communicate in a direct connection manner, the first terminal device can be a transmitting end, and the second terminal device can be a receiving end.
  • the transmitting end and the receiving end are relative concepts, and the transmitting end refers to a terminal device that sends data or information to the opposite end.
  • the receiving end refers to a terminal device that receives data or information sent by the opposite end.
  • the first direct link data and the second direct link data may be the same type of data, or may be different types of service data.
  • the first receiving carrier frequency and the at least one second receiving carrier frequency are different receiving carrier frequencies between the first terminal device and the second terminal device for carrying data and/or information.
  • the receiving carrier frequency and the transmission carrier frequency are relative concepts, and the receiving carrier frequency may refer to: the carrier frequency used by the receiving end (ie, the second terminal device) to receive the direct link data.
  • the transmission carrier frequency may refer to a carrier frequency used by the transmitting end (ie, the first terminal device) to transmit the direct link data.
  • the transmission carrier frequency used by the first terminal device to transmit the direct link data and the received carrier frequency when the second terminal device receives the direct link data may be the same carrier frequency.
  • the transmitting end when the transmitting end sends data to the opposite end through the multi-transport carrier frequency, the transmitting end sends the indication information to the opposite end to indicate that the transmitting end uses the multi-transport carrier frequency to transmit data, and the receiving end According to the indication information, the transmitting end uses the multi-transport carrier frequency to transmit data, and adjusts the receiving data corresponding to the multi-receiving carrier frequency to receive the corresponding data, thereby avoiding the packet loss caused by the receiving end leaking the carrier frequency and improving the data transmission performance.
  • the first direct link data and the first indication information are included in a medium access control protocol data unit MAC PDU, and the second terminal device may receive the MAC PDU on the first receiving carrier frequency.
  • the first direct link data and the first indication information where the format of the MAC PDU is as described in the mode 1 or the mode 2 in the possible implementation manner of the foregoing aspect, and is not described herein again;
  • the second terminal device may receive the first direct link data by receiving the MAC PDU on the first receive carrier frequency, and receive the first indication information by receiving the SA data on the first receive carrier frequency, where the first indication
  • the information is included in the scheduling allocation SA data corresponding to the first direct link data, and the first direct link data is included in the MAC PDU, and the format of the SA data and the format of the MAC PDU are the same as the above manner 3, and Let me repeat.
  • the second terminal device can receive the first direct link data and the first indication information by using the MAC PDU, or the MAC PDU and the SA data, that is, receiving the first direct link data and the first indication information by using the existing data format. There is no need to develop a new information format to carry the first indication information, which reduces the design complexity.
  • the first indication information may be frequency point information of the at least one second receiving carrier frequency, where the frequency band information is used to identify the at least one second receiving carrier frequency, eg, may be at least one second receiving The carrier frequency identifier of the carrier frequency, or at least one index number corresponding to the received carrier frequency.
  • the first indication information may also be a bit string including at least one bit, the at least one bit is in one-to-one correspondence with the at least one second receiving carrier frequency, and the information carried by each bit is used to indicate whether the first terminal device adopts the bit. And transmitting, by the second receiving carrier frequency corresponding to the bit, the second direct link data; the correspondence between the at least one bit and the at least one second receiving carrier frequency is pre-configured, or at least one bit and the at least one second receiving carrier frequency The corresponding relationship is configured by the network, or the correspondence between the at least one bit and the at least one second receiving carrier frequency is protocol specification.
  • the first indication information may be used to indicate whether the second terminal device uses the multi-receive carrier frequency to receive the direct link data, and does not specify which receive carrier frequency to receive the direct link data.
  • the information may be a 1-bit bit indication, for example, the bit number 0 may be used to indicate that the second terminal device does not use the multi-receive carrier frequency to receive the direct link data, and the bit number is 1 to represent the second.
  • the terminal device receives the direct link data by using multiple receive carrier frequencies.
  • the first indication information may be a received carrier frequency value, and the received carrier frequency value is used to indicate the number of received carrier frequencies used by the second terminal device.
  • the first indication information indicates that the second terminal uses K receiving carrier frequencies, and the second terminal uses the first K receiving carrier frequencies according to the receiving priority.
  • the receiving carrier frequency (including the second receiving carrier frequency, which may also include the first receiving carrier frequency) and the corresponding priority may be obtained by pre-configuration, network configuration or protocol normalization.
  • the carrier frequency value may or may not be included in the first received carrier frequency.
  • the first indication information can be designed in any of the above manners, and the flexibility of information reception is improved.
  • the MAC PDU where the first direct link data is located may include the first service identifier information.
  • the MAC PDU in which the second direct link data is located may include the second service identifier information, where the first service identifier information is the same as the second service identifier information.
  • the first service identifier information is used to identify the service type of the first direct link data
  • the second service identifier information is used to identify the service type of the second direct link data, the first service identifier information, and the second service identifier.
  • the information may include at least one of the following: a source address, a destination address, a service type identifier, a priority identifier, a direct link bearer identifier, a logical channel identifier, and a flow identifier.
  • first direct link data and the second direct link data are different types of service data
  • first service identifier information and the second service identifier information may be different.
  • the second terminal device can identify the service type of the direct link data to be received according to the service identifier information carried in the MAC PDU where the direct link data is located, and if it is the service data of interest to itself, it will receive the direct The link data is transmitted to the upper layer for processing, otherwise it is not processed.
  • the method may further include:
  • the second terminal device acquires carrier frequency configuration information, where the carrier frequency configuration information includes a first received carrier frequency identifier and at least one second received carrier frequency identifier, where the first received carrier frequency identifier is used to identify the first receiving carrier frequency, at least one The second receiving carrier identifier is used to identify the at least one second receiving carrier frequency, and the receiving priority of the first receiving carrier frequency is higher than any of the second receiving carrier frequencies of the at least one second receiving carrier frequency.
  • the second terminal device may obtain the carrier frequency configuration information from the access network device, where the carrier frequency configuration information may be included in the RRC dedicated signaling or system message, that is, the first terminal device may send the information through the access network device.
  • the carrier frequency configuration information is obtained by using RRC dedicated signaling or system message.
  • the carrier frequency configuration information is used by the second terminal device to determine, according to the carrier frequency configuration information, a carrier frequency for receiving direct link data. For example, the second terminal device receives the first direct link data and the first indication information on the first receiving carrier frequency with the highest receiving priority according to the carrier frequency configuration information, and after the second terminal device receives the first indication information, And the second terminal device receives the second direct link data by using the at least one second receiving carrier frequency whose receiving priority is lower than the first receiving carrier frequency according to the carrier frequency configuration information.
  • the second terminal device may receive the direct link data by using the appropriate receiving carrier frequency according to the carrier frequency configuration information, for example, receiving the important information by using the first receiving carrier frequency with the highest priority. (such as the first indication) to improve the accuracy of data reception.
  • the carrier frequency configuration information may be used to indicate the priority of each receiving carrier frequency in the following manner:
  • the receiving carrier frequency identifiers are arranged in descending order of receiving priority of the receiving carrier frequency;
  • the receiving carrier frequency identifiers are arranged in descending order of receiving priority of the receiving carrier frequency;
  • the carrier frequency configuration information further includes a first receiving priority identifier and at least one second receiving priority identifier, wherein the first receiving priority identifier corresponds to the first receiving carrier identifier, and the at least one second receiving priority identifier is associated with the at least one
  • the second receiving carrier identifier has a one-to-one correspondence, and the receiving priority corresponding to the first receiving priority identifier is higher than the receiving priority corresponding to any second receiving priority identifier of the at least one second receiving priority identifier.
  • the first receiving priority identifier may be a number, or a letter, or other identifier; for example, the highest priority may be identified by the number 1 or the letter A.
  • the second terminal device can determine the receiving carrier frequency with the highest priority and the receiving carrier frequency with the second highest priority according to the priority of receiving the carrier frequency identifier and receiving the carrier frequency identifier.
  • the carrier frequency configuration information may further include third service identification information and at least one fourth service identification information;
  • the at least one fourth service identifier information is in one-to-one correspondence with the at least one second receiving carrier frequency identifier; the third service identifier is used to indicate the direct link data received on the receiving carrier frequency identified by the first receiving carrier frequency identifier.
  • the service type, the fourth service identifier information is used to indicate the service type of the direct link data received on the receiving carrier frequency identified by the second received carrier frequency identifier corresponding to the fourth service identifier information.
  • the service identifier information and the third service identifier information of the at least one fourth service identifier information may be the same or different, and the third service identifier information and the fourth service identifier information include at least one of the following information: , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the second terminal device can identify the service type of the direct link data received on the receiving carrier frequency according to the service identifier information corresponding to the received carrier frequency.
  • the service identifier information carried by the MAC PDU in which the second terminal device receives the direct link data may be the same as the service identifier information corresponding to the received carrier frequency that is identified by the second terminal device from the carrier frequency configuration information.
  • the first service identity information may be the same as the third service identity information, and the second service identity information may be the same as the fourth service identity information.
  • the method further includes:
  • the second terminal device processes the second direct link data received from the at least one second receiving carrier frequency according to the SA data.
  • the SA data corresponding to the second direct link data may be used to indicate control information related to the second direct link data transmission (such as a time-frequency resource location, an adjustment coding mode, a service priority, a transmission time interval, etc.) .
  • an embodiment of the present invention provides a second terminal device, including:
  • a receiving unit configured to receive first direct link data and first indication information sent by the first terminal device on the first receiving carrier frequency, and receive second direct link data on the at least one second receiving carrier frequency
  • the first indication information is used to indicate that the first terminal device sends the second direct link data by using the at least one second receiving carrier frequency.
  • the second terminal device For a specific implementation manner of the second terminal device, reference may be made to the behavior of the second terminal device in the multi-carrier transmission method provided by the foregoing aspect or the possible implementation manner of the foregoing aspect, and details are not described herein. Therefore, the second terminal device provided by this aspect can achieve the same advantageous effects as the above aspects.
  • the embodiment of the present invention provides a second terminal device, where the second terminal device can implement the functions performed by the second terminal device in the foregoing method, where the function can be implemented by hardware or by hardware. Perform the appropriate software implementation.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the second terminal device includes a processor and a transceiver, and the processor is configured to support the second terminal device to perform a corresponding function in the foregoing method.
  • the transceiver is configured to support communication between the second terminal device and other network elements.
  • the second terminal device can also include a memory for coupling with the processor that retains the necessary program instructions and data for the second terminal device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the second terminal device, the computer software instructions including a program for executing the solution of the above aspect.
  • an embodiment of the present invention provides a computer program product storing computer software instructions for use by the second terminal device, the computer software instructions comprising a program for performing the solution of the above aspect.
  • an embodiment of the present invention provides a device, which is in the form of a product of a chip.
  • the device includes a processor and a memory, and the memory is coupled to the processor to save necessary program instructions of the device. And data, the processor is operative to execute program instructions stored in the memory, such that the apparatus performs the functions corresponding to the second terminal device in the above method.
  • an embodiment of the present invention provides a multi-carrier transmission method, including:
  • the access network device generates the carrier frequency configuration information, and sends the carrier frequency configuration information to the terminal device, where the carrier frequency configuration information includes the first transmission carrier frequency identifier and the at least one second transmission carrier frequency identifier, where the first transmission carrier frequency identifier is used. Identifying a first transmission carrier frequency, the at least one second transmission carrier identifier is used to identify the at least one second transmission carrier frequency, and the receiving priority of the first transmission carrier frequency is higher than any second of the at least one second transmission carrier frequency Transfer carrier frequency.
  • the transmitting network device sends the carrier frequency configuration information to the terminal device, where the access network device sends the carrier frequency configuration information to the transmitting end that sends the direct link data.
  • the carrier frequency configuration information can be sent to the terminal device through the access network device, so that the terminal device sends the direct link data according to the carrier frequency configuration information by using a suitable transmission carrier frequency, or adjusts the direct connection according to the carrier frequency configuration information.
  • Carrier frequency of link data can be sent to the terminal device through the access network device, so that the terminal device sends the direct link data according to the carrier frequency configuration information by using a suitable transmission carrier frequency, or adjusts the direct connection according to the carrier frequency configuration information.
  • the carrier frequency configuration information may be used to indicate the priority of each transmission carrier frequency in the following manner:
  • the transmission carrier frequency identifiers are arranged in descending order of transmission priority of the transmission carrier frequency;
  • the transmission carrier identifiers are arranged in descending order of transmission priority of the transmission carrier frequency;
  • the carrier frequency configuration information further includes a first transmission priority identifier and at least one second transmission priority identifier, wherein the first transmission priority identifier corresponds to the first transmission carrier identifier, and the at least one second transmission priority identifier and the at least one
  • the second transmission carrier identifier has a one-to-one correspondence, and the transmission priority corresponding to the first transmission priority identifier is higher than the transmission priority corresponding to any second transmission priority identifier of the at least one second transmission priority identifier.
  • the first transmission priority identifier may be a number, or a letter, or other identifier; for example, the highest priority may be identified by the number 1 or the letter A.
  • the terminal device may determine the highest priority transmission carrier frequency and the second highest priority transmission carrier frequency according to the transmission carrier identifier and the priority corresponding to the transmission carrier frequency identifier.
  • the carrier frequency configuration information may further include first service identification information and at least one second service identification information;
  • the at least one second service identifier information is in one-to-one correspondence with the at least one second transport carrier frequency identifier; the second service identifier is used to indicate the direct link data sent on the transport carrier frequency identified by the first transport carrier identifier.
  • the service type, the second service identifier information is used to indicate the service type of the direct link data sent on the transmission carrier frequency identified by the second transport carrier identifier corresponding to the second service identifier information.
  • the service identifier information and the first service identifier information of the at least one second service identifier information may be the same or different, and the first service identifier information and the second service identifier information include at least one of the following information: a source address , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the terminal device can identify the service type of the direct link data according to the service identifier information corresponding to the transport carrier frequency of the direct link data.
  • the access network device can obtain carrier frequency configuration information from the upper layer.
  • the upper layer may be an RLC layer or a PDCP layer of an access network device.
  • the access network device may send carrier configuration information to the terminal device through RRC signaling or a system message.
  • the carrier frequency configuration information can be carried in the RRC signaling or system message and sent to the terminal device, which provides security for information transmission.
  • an access network device including:
  • Generating unit configured to generate carrier frequency configuration information
  • a sending unit configured to send the carrier frequency configuration information acquired by the generating unit to the terminal device, where the carrier frequency configuration information includes a first transmission carrier frequency identifier and at least one second transmission carrier frequency identifier, where the first transmission carrier frequency identifier is used Identifying a first transmission carrier frequency, the at least one second transmission carrier identifier is used to identify the at least one second transmission carrier frequency, and the receiving priority of the first transmission carrier frequency is higher than any second of the at least one second transmission carrier frequency Transfer carrier frequency.
  • the access network device For a specific implementation manner of the access network device, reference may be made to the behavior of the access network device in the multi-carrier transmission method provided by the foregoing aspects or the possible implementation manners of the foregoing aspects, and details are not described herein. Therefore, the access network device provided by this aspect can achieve the same advantageous effects as the above aspects.
  • an embodiment of the present invention provides an access network device, where the access network device can implement the functions performed by the access network device in the foregoing method, where the function can be implemented by hardware or by hardware. Perform the appropriate software implementation.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the access network device includes a processor and a communication interface, the processor being configured to support the access network device to perform a corresponding function in the above method.
  • the communication interface is used to support communication between the access network device and other network elements.
  • the access network device can also include a memory for coupling with the processor that retains the necessary program instructions and data for the access network device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the access network device, the computer software instructions comprising a program for executing the solution of the above aspect.
  • an embodiment of the present invention provides a computer program product storing computer software instructions for use in the access network device, the computer software instructions comprising a program for performing the solution of the above aspect.
  • an embodiment of the present invention provides a device, which is in the form of a product of a chip.
  • the device includes a processor and a memory, and the memory is coupled to the processor to save necessary program instructions of the device. And data, the processor is operative to execute program instructions stored in the memory such that the apparatus performs the functions corresponding to the access network device in the above method.
  • an embodiment of the present invention provides a multi-carrier transmission method, including:
  • the access network device generates carrier frequency configuration information, and sends carrier frequency configuration information to the terminal device, where the carrier frequency configuration information includes a first received carrier frequency identifier and at least one second received carrier frequency identifier, where the first received carrier frequency identifier is used. Identifying a first receiving carrier frequency, the at least one second receiving carrier frequency identifier is used to identify the at least one second receiving carrier frequency, and the receiving priority of the first receiving carrier frequency is higher than any second of the at least one second receiving carrier frequency Receive carrier frequency.
  • the transmitting network device sends the carrier frequency configuration information to the terminal device, where the access network device sends the carrier frequency configuration information to the receiving end that receives the direct link data.
  • the carrier frequency configuration information can be sent to the terminal device through the access network device, so that the terminal device sends the direct link data according to the carrier frequency configuration information by using a suitable receiving carrier frequency, or adjusts the receiving direct connection according to the carrier frequency configuration information.
  • Carrier frequency of link data can be sent to the terminal device through the access network device, so that the terminal device sends the direct link data according to the carrier frequency configuration information by using a suitable receiving carrier frequency, or adjusts the receiving direct connection according to the carrier frequency configuration information.
  • the carrier frequency configuration information may be used to indicate the priority of each receiving carrier frequency in the following manner:
  • the receiving carrier frequency identifiers are arranged in descending order of receiving priority of the receiving carrier frequency;
  • the receiving carrier frequency identifiers are arranged in descending order of receiving priority of the receiving carrier frequency;
  • the carrier frequency configuration information further includes a first receiving priority identifier and at least one second receiving priority identifier, wherein the first receiving priority identifier corresponds to the first receiving carrier identifier, and the at least one second receiving priority identifier is associated with the at least one
  • the second receiving carrier identifier has a one-to-one correspondence, and the receiving priority corresponding to the first receiving priority identifier is higher than the receiving priority corresponding to any second receiving priority identifier of the at least one second receiving priority identifier.
  • the first receiving priority identifier may be a number, or a letter, or other identifier; for example, the highest priority may be identified by the number 1 or the letter A.
  • the terminal device may determine the receiving carrier frequency with the highest priority and the receiving carrier frequency with the highest priority according to the priority of the receiving carrier frequency identifier and the receiving carrier frequency identifier.
  • the carrier frequency configuration information may further include first service identification information and at least one second service identification information;
  • the at least one second service identifier information is in one-to-one correspondence with the at least one second receiving carrier frequency identifier; the second service identifier is used to indicate the direct link data received on the receiving carrier frequency identified by the first receiving carrier frequency identifier.
  • the service type, the second service identifier information is used to indicate the service type of the direct link data received on the receiving carrier frequency identified by the second received carrier frequency identifier corresponding to the second service identifier information.
  • the service identifier information and the first service identifier information of the at least one second service identifier information may be the same or different, and the first service identifier information and the second service identifier information include at least one of the following information: a source address , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the terminal device can identify the service type of the direct link data according to the service identifier information corresponding to the received carrier frequency of the direct link data.
  • the access network device can obtain carrier frequency configuration information from the upper layer.
  • the upper layer may be an RLC layer or a PDCP layer of an access network device.
  • the access network device may send carrier configuration information to the terminal device through RRC signaling or a system message.
  • the carrier frequency configuration information can be carried in the RRC signaling or system message and sent to the terminal device, which provides security for information transmission.
  • an access network device including:
  • Generating unit configured to generate carrier frequency configuration information
  • a sending unit configured to send the carrier frequency configuration information acquired by the generating unit to the terminal device, where the carrier frequency configuration information includes a first receiving carrier frequency identifier and at least one second receiving carrier frequency identifier, where the first receiving carrier frequency identifier is used Identifying a first receiving carrier frequency, the at least one second receiving carrier frequency identifier is used to identify the at least one second receiving carrier frequency, and the receiving priority of the first receiving carrier frequency is higher than any second of the at least one second receiving carrier frequency Receive carrier frequency.
  • the access network device For a specific implementation manner of the access network device, reference may be made to the behavior of the access network device in the multi-carrier transmission method provided by the foregoing aspects or the possible implementation manners of the foregoing aspects, and details are not described herein. Therefore, the access network device provided by this aspect can achieve the same advantageous effects as the above aspects.
  • an embodiment of the present invention provides an access network device, where the access network device can implement the functions performed by the access network device in the foregoing method, where the function can be implemented by hardware or by hardware. Perform the appropriate software implementation.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the access network device includes a processor and a communication interface, the processor being configured to support the access network device to perform a corresponding function in the above method.
  • the communication interface is used to support communication between the access network device and other network elements.
  • the access network device can also include a memory for coupling with the processor that retains the necessary program instructions and data for the access network device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the access network device, the computer software instructions comprising a program for executing the solution of the above aspect.
  • an embodiment of the present invention provides a computer program product storing computer software instructions for use in the access network device, the computer software instructions comprising a program for performing the solution of the above aspect.
  • an embodiment of the present invention provides a device, which is in the form of a product of a chip.
  • the device includes a processor and a memory, and the memory is coupled to the processor to save necessary program instructions of the device. And data, the processor is operative to execute program instructions stored in the memory such that the apparatus performs the functions corresponding to the access network device in the above method.
  • the embodiment of the present invention provides a multi-carrier transmission system, comprising: the first terminal device according to the above aspect or any of the foregoing implementation manners, and the foregoing aspect or any of the foregoing aspects.
  • the first terminal device, the above aspect, or the second terminal device according to any of the foregoing possible implementations, or any of the above aspects or the foregoing aspects, in any one of the foregoing aspects,
  • the access network device described in the implementation manner.
  • 1 is a schematic diagram of existing multi-carrier frequency transmission
  • FIG. 2 is a simplified schematic diagram of a system architecture according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 5 is a flowchart of a multi-carrier frequency transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a composition of a MAC PDU according to an embodiment of the present invention.
  • FIG. 5b is a schematic diagram of another composition of a MAC PDU according to an embodiment of the present invention.
  • FIG. 5c is a schematic diagram of a composition of a MAC PDU and SA data according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for transmitting multiple carrier frequencies according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a first terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a second terminal device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another apparatus according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of still another apparatus according to an embodiment of the present invention.
  • the embodiment of the present invention provides a multi-carrier frequency transmission method.
  • the basic principle is: when the first terminal device uses multiple carrier frequency to transmit direct link data, the second terminal device sends a second terminal device to indicate that the second terminal device uses multiple The indication information of the carrier transmission, so that the second terminal device adjusts the receiving chain according to the indication information to receive the corresponding data.
  • the multi-carrier transmission method provided by the embodiment of the present invention can be applied to any communication system supporting multiple carrier frequency transmission, such as a V2X communication system.
  • the V2X communication system can be communicated by using the V2V communication mode or the V2I communication mode or the V2P communication mode or the V2N communication mode.
  • the communication system adopting the V2V communication mode shown in FIG. 2 is used as a simplified schematic diagram of the system architecture of the embodiment of the present invention.
  • the multi-carrier frequency transmission method provided by the embodiment of the present invention is described.
  • the communication system may include a first terminal device, a second terminal device, and an access network (AN) device.
  • the first terminal device is a receiving end
  • the second terminal device is a receiving end.
  • the first terminal device and the second terminal device can transmit direct link data to each other, and the first terminal device and the second terminal device can be in the access network.
  • the coverage area of the device may not be in the coverage area of the access network, and the access network device may be connected to the first terminal device and the second terminal device in a wireless manner.
  • the transmitting end and the receiving end are relative concepts, and the transmitting end may point to a terminal device that sends direct link data to other devices.
  • the receiving end may refer to receiving the sending by other devices.
  • the terminal device that directly connects the link data in addition, FIG. 2 is only an exemplary architecture diagram.
  • the 5G system may further include other function nodes, which is not limited by the embodiment of the present invention.
  • the first terminal device and the second terminal device in FIG. 2 may be user equipment (UE), such as a vehicle, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, Wireless local loop (WLL) station, personal digital assistant (PDA), laptop, handheld communication device, handheld computing device, satellite wireless device, wireless modem card, and/or Other devices that communicate on the wireless system.
  • UE user equipment
  • the access network device in FIG. 2 may be a network composed of multiple AN nodes for implementing physical layer functions, resource scheduling, radio resource management, radio access control, and mobility management functions.
  • the AN node may be: Incoming node, base station, enhanced base station, generation node B (gNB), transmission receive point (TRP), transmission point (TP) or some other access network device.
  • FIG. 3 is a schematic diagram of a composition of a terminal device according to an embodiment of the present invention.
  • the terminal device may include at least one processor 31, a memory 32, a transceiver 33, and a communication bus 34.
  • the device structure shown in FIG. 3 does not constitute a limitation of the control plane node, and may include more or less components than those illustrated, or combine some components, or different component arrangements, and the present invention is implemented. This example does not limit this.
  • the processor 31 is a control center of the control plane node, and may be a processor or a collective name of a plurality of processing elements.
  • the processor 31 is a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • ASIC application specific integrated circuit
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • the processor 31 can perform various functions of the control plane node by running or executing a software program stored in the memory 32 and calling data stored in the memory 32.
  • processor 31 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.
  • the control plane node may include multiple processors, such as processor 31 and processor 35 shown in FIG.
  • processors can be a single core processor (CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the memory 32 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory 32 can exist independently and is coupled to the processor 31 via a communication bus 34.
  • the memory 32 can also be integrated with the processor 31.
  • the memory 32 is used to store a software program for executing the solution provided by the embodiment of the present invention, and is controlled by the processor 31 for execution.
  • the transceiver 33 is configured to communicate with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), and the like.
  • the transceiver 33 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function; optionally, the transceiver 33 may be a radio frequency module.
  • the communication bus 34 may be an industry standard architecture (ISA) bus, a peripheral component (PCI) bus, or an extended industry standard architecture (EISA) bus.
  • ISA industry standard architecture
  • PCI peripheral component
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 3, but it does not mean that there is only one bus or one type of bus.
  • the device structure shown in FIG. 3 does not constitute a limitation of the terminal device, and may include more or less components than those illustrated, or combine some components, or different component arrangements.
  • the terminal device may further include a display, a battery, a camera, a Bluetooth module, a global positioning system (GPS), and the like, and details are not described herein.
  • GPS global positioning system
  • the terminal device shown in FIG. 3 is the first terminal device according to the embodiment of the present invention
  • the terminal device may perform the function of the first terminal device in the multi-carrier frequency transmission method provided by the embodiment of the present invention, for example, the terminal device
  • the processor 31 in the terminal device may be configured to acquire the first direct link data
  • the transceiver 33 in the terminal device may be configured to send the first direct link data to the other terminal device and to indicate that the terminal device adopts the at least one second Transmitting a carrier carrier to transmit first indication information of the second direct link data.
  • the terminal device shown in FIG. 3 may perform the function of the second terminal device in the multi-carrier frequency transmission method provided by the embodiment of the present invention, for example, the terminal device
  • the transceiver 33 may be configured to receive the first direct link data and the first indication information from the first receiving carrier frequency, where the processor 31 in the terminal device may be configured to determine, according to the indication information, that the other terminal device adopts multiple second The receiving transmission transmits the second direct link data, and the transceiver 33 in the terminal device can be configured to receive the second direct link data from the second receiving transport carrier.
  • FIG. 4 is a schematic diagram of a composition of an access network device according to an embodiment of the present invention.
  • the access network device may include at least one processor 41, a memory 42, a communication interface 43, and a communication bus 44.
  • the processor 41 is a control center of the access network device, and may be a processor or a collective name of a plurality of processing elements.
  • processor 41 is a CPU, which may be an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more DSPs, or one or more FPGAs.
  • the processor 41 can perform various functions of the access network device by running or executing a software program stored in the memory 42 and calling data stored in the memory 42.
  • processor 41 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.
  • the access network device can include multiple processors, such as processor 41 and processor 45 shown in FIG. Each of these processors can be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the memory 42 can be a ROM or other type of static storage device that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, and can also be EEPROM, CD-ROM or other optical disk storage, optical disk storage. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • Memory 42 may be present independently and coupled to processor 41 via communication bus 44.
  • the memory 42 can also be integrated with the processor 41.
  • the memory 42 is used to store a software program that executes the solution of the present invention, and is controlled by the processor 41 for execution.
  • the communication interface 43 is used for communicating with other devices or communication networks, such as Ethernet, RAN, WLAN, and the like.
  • the communication interface 43 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function; specifically, the communication interface 43 may be a radio frequency module.
  • the communication bus 44 can be an ISA bus, a PCI bus, or an EISA bus.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 4, but it does not mean that there is only one bus or one type of bus.
  • the access network device shown in FIG. 4 can perform the operations performed by the access network device in the multi-carrier transmission method provided by the embodiment of the present invention, for example, the processor 41 in the access network device generates the first carrier frequency configuration information, The second carrier frequency location information, the communication interface 43 in the access network device sends the first carrier frequency configuration information to the first terminal device, and sends the second carrier frequency configuration information to the second terminal device.
  • the multi-carrier transmission method provided by the embodiment of the present invention is described in detail below with reference to the communication system shown in FIG. 2, wherein the device in the following method embodiments may correspondingly include the components shown in FIG. 3 or FIG. It should be noted that although the logical order is shown in the method flow diagrams described below, in some cases, the steps shown or described may be performed in a different order than the ones described herein.
  • FIG. 5 is a flowchart of a method for transmitting multiple carrier frequencies according to an embodiment of the present invention. As shown in FIG. 5, the method may include:
  • Step 501 The first terminal device acquires the first direct link data.
  • the first terminal device may be a terminal device covered by the access network, or may be a terminal device outside the coverage of the access network.
  • the first terminal device may acquire the first direct link data from an upper layer of the first terminal device, such as an RLC layer or a PDCP layer or any other layer.
  • an upper layer of the first terminal device such as an RLC layer or a PDCP layer or any other layer.
  • the first terminal device may obtain the primitive information corresponding to the first direct link data from the upper layer, where the primitive information may include
  • the information indicating the transmission parameter and the service characteristic of the first direct link data may include information such as a source address and a destination address, and the target address may have a mapping relationship with a service type of the first direct link data.
  • Each type of direct link data sent by the upper layer corresponds to at least one target address.
  • Step 502 The first terminal device sends the first direct link data and the first indication information to the second terminal device on the first transmission carrier frequency.
  • the first transmission carrier frequency may be a transmission carrier frequency with a higher transmission priority in the transmission carrier frequency.
  • the first indication information is used to indicate that the first terminal device sends the second direct link data by using the at least one second transmission carrier frequency.
  • the second direct link data and the first direct link data may be data of the same service type or data of different service types, and the first direct link data and the second direct link data may be the same. Data can also be different data.
  • the first terminal device sends the first direct link data to the second terminal device on the first transmission carrier frequency
  • the first indication information may be: when the first terminal device determines to use the multi-transport carrier frequency to transmit
  • the first direct link data and the first indication information are sent to the second terminal device on the first transmission carrier frequency, that is, the first terminal device determines to use the multiple transmission carrier frequency to send the second direct connection.
  • the link data is used as a trigger condition for the first terminal device to send the first direct link data and the first indication information to the second terminal device on the first transmission carrier frequency.
  • the first terminal device may be according to at least one data buffer quantity, or a network indication, or an upper layer indication, or other predetermined rule, in an upper layer (such as a MAC layer or an RLC layer or a PDCP layer or other layer) of the first terminal device. Determining whether to transmit the second direct link data using the multi-transport carrier frequency.
  • Step 503 The second terminal device receives the first direct link data and the first indication information sent by the first terminal device from the first transmission carrier frequency, and receives the second information on the at least one second transmission carrier frequency according to the first indication information. Direct link data.
  • the second terminal device may be: the second terminal device determines, according to the content included in the first indication information, that the first terminal device uses at least A second transmission carrier frequency transmits the second direct link data, and the second direct link data is received on the at least one second transmission carrier frequency.
  • the indication information is sent to the second terminal device to indicate the first
  • the terminal device uses the multi-transport carrier frequency to transmit the direct link data
  • the second terminal device learns, according to the indication information, that the first terminal device uses the multi-transport carrier frequency to transmit the direct link data, and adjusts the receive chain reception corresponding to the multi-transport carrier frequency.
  • the corresponding data avoids the packet loss caused by the second terminal device missing the carrier frequency and improves the data transmission performance.
  • the first terminal device sends the first direct link data to the second terminal device on the first transmission carrier frequency
  • the first indication information may include any one of the following manners:
  • Manner 1 The first direct link data and the first indication information are included in the MAC PDU, and the first terminal device sends the first direct link data to the second terminal device by sending the MAC PDU on the first transmission carrier frequency and First indication information.
  • the format of the MAC PDU is as shown in FIG. 5a, and may include a MAC header and a MAC payload.
  • the MAC payload may include first indication information and first direct link data
  • the MAC header may include a dedicated MAC subheader, and the dedicated MAC sub-header
  • the header is used to indicate the first indication information included in the MAC load, and the location of the first indication information in the MAC payload.
  • the dedicated MAC subheader may be a dedicated LCID.
  • the MAC PDU shown in FIG. 5a may further include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, the source.
  • the address and destination address are used to indicate the service type of the direct link data carried by the MAC PDU.
  • FIG. 5a is only an example of a MAC PDU.
  • the MAC PDU may include other content in addition to the content shown in FIG. 5a, which is not limited in this embodiment of the present invention.
  • the first indication information in the mode 1 may be any of the following forms of information:
  • the first indication information includes frequency information of at least one second transmission carrier frequency, where the frequency band information is used to identify at least one second transmission carrier frequency, such as: a carrier frequency identifier that may be at least one second transmission carrier frequency, Or at least one index number corresponding to the transmission carrier frequency. For example, if at least one second transmission carrier frequency is the first to eighth eight transmission carrier frequencies, the eight transmission carrier frequencies may be identified by using index numbers 1-8 as the first indication information.
  • the first indication information is a bit string including at least one bit, the at least one bit is in one-to-one correspondence with the at least one second transmission carrier frequency, and the information carried by each bit is used to indicate whether the first terminal device adopts the bit.
  • the second transmission carrier frequency corresponding to the bit transmits the second direct link data.
  • the number 0 filled in the bit may be used to indicate that the first terminal device does not use the second transmission carrier frequency corresponding to the bit.
  • the number 1 indicates that the first terminal device uses the second transmission carrier frequency corresponding to the bit to transmit the direct link data; the correspondence between the at least one bit and the at least one second transmission carrier frequency is The configured, or the correspondence between the at least one bit and the at least one second transmission carrier frequency is configured by the network, or the correspondence between the at least one bit and the at least one second transmission carrier frequency is protocol-specific.
  • the pre-configuration may refer to: a configuration carried in a special configuration signaling, and the configuration may be refreshed or changed;
  • the protocol specification may refer to a standard specified by the communication protocol, and the standard cannot be refreshed. ,change.
  • the eight second transmission carrier frequencies of the first to the eighth there are eight second transmission carrier frequencies of the first to the eighth, and the eight second transmission carrier frequencies are in one-to-one correspondence with the eight bits in the first indication information, and the first second transmission carrier frequency corresponds to The lower 1 bit of the eight bits, the second second transmission carrier corresponds to the lower 2 bits of the eight bits, and so on, and the eighth second transmission carrier corresponds to the upper 8 bits of the eight bits, ie The kth bit corresponds to the kth transmission carrier frequency.
  • the first indication information may be 00010101, that is, The number of bits filled in the first, third, and fifth bits of the bit string is 1, to instruct the first terminal device to transmit the second direct link data by using the first, third, and fifth second transmission carriers. .
  • the first indication information is information for indicating whether the first terminal device uses the multi-transport carrier frequency to transmit the direct link data, and does not specify which transport carrier frequency the first terminal device specifically uses to transmit the direct link data.
  • the information may be a 1-bit (bit) indication information, for example, the number of bits 0 may be used to indicate that the first terminal device does not use the multi-carrier transmission direct link data, and the first terminal is represented by the bit number 1.
  • the device uses multiple carrier frequencies to transmit direct link data.
  • the first indication information is a value of the transmission carrier frequency used, and the transmission carrier frequency value is used to indicate the number of transmission carrier frequencies used by the first terminal device.
  • the first indication information indicates that the first terminal uses K transmission carrier frequencies, and the first terminal uses the first K transmission carrier frequency transmissions according to the transmission priority.
  • the transmission carrier frequency (including the second transmission carrier frequency, which may also include the first transmission carrier frequency) and the corresponding priority may be obtained by pre-configuration, network configuration or protocol normalization.
  • the carrier frequency value may or may not be included in the first transmission carrier frequency.
  • Mode 2 The first direct link data and the first indication information are included in a media access control protocol data unit (MAC PDU), and the first terminal device sends the data on the first transmission carrier frequency.
  • the MAC PDU sends the first direct link data and the first indication information to the second terminal device.
  • the format of the MAC PDU is as shown in FIG. 5b, and may include a MAC header and a MAC payload.
  • the MAC payload may include first direct link data
  • the MAC header may include first indication information.
  • the MAC PDU shown in FIG. 5b may further include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, the source.
  • the address and destination address are used to indicate the service type of the direct link data carried by the MAC PDU.
  • the first indication information may occupy a fixed bit of the MAC header and become a fixed component of the MAC header.
  • the version identifier of the MAC PDU is a fixed value
  • the first indication information must be sent in the MAC PDU each time.
  • the first terminal device determines to use the at least one transmission carrier frequency to transmit the direct link data
  • the first terminal device sends the first indication information to the second terminal device by carrying the first indication information in the fixed bit of the MAC header.
  • the first terminal device does not determine to use the at least one transmission carrier frequency to transmit the direct link data
  • the first terminal device fills the fixed bit used to carry the first indication information with 0 or other information, indicating that the first terminal device No multi-carrier transmission is performed.
  • the first indication information may be carried in a dedicated MAC control unit (CE) in the MAC header, and the MAC CE may be identified by using a dedicated logical channel identifier.
  • CE MAC control unit
  • FIG. 5b is only an example of a MAC PDU.
  • the MAC PDU may include other content in addition to the content shown in FIG. 5b, which is not limited in this embodiment of the present invention.
  • the first indication information in the mode 2 can refer to the first indication information in the mode 1, and details are not described herein again.
  • Mode 3 As shown in FIG. 5c, the first indication information is included in the SA data corresponding to the first direct link data, where the first direct link data is included in the MAC PDU, and the first terminal device passes the first Transmitting a MAC PDU on the transmission carrier frequency to transmit the first direct link data to the second terminal device, and transmitting the first indication information to the second terminal device by transmitting the SA data on the first transmission carrier frequency.
  • the SA data may include control information related to the first direct link data transmission, such as: time-frequency resource location, adjustment coding mode, service priority, and transmission interval period.
  • the MAC PDU may include a MAC header and a MAC payload, and the MAC payload may include the first direct link data, and the MAC header may include a version identifier, a source address, and a destination address, where the version identifier is used to identify the format of the MAC PDU, and the source The address and destination address are used to indicate the service type of the direct link data carried by the MAC PDU.
  • FIG. 5c is only an example of a MAC PDU.
  • the SA data may include other content in addition to the content shown in FIG. 5c.
  • the MAC PDU may further include other content, which is not limited in this embodiment of the present invention.
  • transmission and reception are relative concepts, and the transmission carrier frequency may be replaced by a receiving carrier frequency, that is, the transmission carrier frequency used by the first terminal device is a receiving load for the second terminal device.
  • the second terminal device receives, for indicating that the first terminal device sends the second direct link data on the at least one second receiving carrier frequency.
  • Some indication information that is, from the perspective of the second terminal device, the second terminal device may receive the first indication information by using the foregoing manners 1 to 3, where the first indication information may include the following content:
  • the first indication information includes frequency information of the at least one second receiving carrier frequency, where the frequency band information is used to identify the at least one second receiving carrier frequency, for example, the carrier frequency identifier of the at least one second receiving carrier frequency, Or at least one index number corresponding to the receiving carrier frequency. For example, if the at least one second receiving carrier frequency is the first to eighth eight receiving carrier frequencies, the eight receiving carrier frequencies may be identified by using index numbers 1-8 as the first indication information.
  • the first indication information is a bit string including at least one bit, the at least one bit is in one-to-one correspondence with the at least one second receiving carrier frequency, and the information carried by each bit is used to indicate whether the first terminal device adopts the bit.
  • the second receiving carrier frequency corresponding to the bit transmits the second direct link data, and the correspondence between the at least one bit and the at least one second receiving carrier frequency is pre-configured, or at least one bit and the at least one second receiving carrier frequency
  • the corresponding relationship is configured by the network, or the correspondence between the at least one bit and the at least one second receiving carrier frequency is protocol specification.
  • the number 0 filled in the bit may be used to indicate that the first terminal device does not use the second receiving carrier frequency corresponding to the bit to send the direct link data, and the number 1 indicates that the first terminal device adopts the Sending direct link data by using a second receiving carrier frequency corresponding to the bit;
  • the eight second receiving carrier frequencies of the first to the eighth there are eight second receiving carrier frequencies of the first to the eighth, and the eight second receiving carrier frequencies are in one-to-one correspondence with the eight bits in the first indication information, and the first second receiving carrier frequency corresponds to The lower 1 bit of the eight bits, the second second received carrier frequency corresponds to the lower 2 bits of the eight bits, and so on, and the eighth second received carrier frequency corresponds to the upper 8 bits of the eight bits, ie The kth bit corresponds to the kth receiving carrier frequency.
  • the first indication information may be 00010101, that is, The number of bits filled in the first, third, and fifth bits of the bit string is 1, to indicate that the second terminal device receives the second direct link data by using the first, third, and fifth second receiving carrier frequencies.
  • the first indication information is information for indicating whether the first terminal device uses the multiple receiving carrier frequency to transmit the direct link data, and does not specify which receiving carrier frequency is used by the first terminal device to send the direct link data.
  • the information may be 1-bit (bit) indication information, for example, the bit number 0 may be used to indicate that the second terminal device does not use multiple carrier frequency to receive direct link data, and the bit number is 1 to represent the second terminal.
  • the device uses multiple carrier frequencies to receive direct link data.
  • the first indication information is a received carrier frequency value, and the received carrier frequency value is used to indicate the number of received carrier frequencies used by the first terminal device.
  • the first indication information indicates that the first terminal uses K receiving carrier frequencies, and the first terminal uses the first K receiving carrier frequencies according to the receiving priority.
  • K is an integer greater than or equal to 1
  • the receiving carrier frequency including the second receiving carrier frequency, which may also include the first receiving carrier frequency
  • the corresponding priority may be obtained by pre-configuration, network configuration, or protocol normalization.
  • the carrier frequency value may or may not be included in the first received carrier frequency.
  • the receiving, by the second terminal device, the second direct link data on the at least one second receiving carrier frequency according to the first indication information may include:
  • the second terminal device identifies, according to the frequency point information included in the first indication information, at least one second receiving carrier frequency of the frequency point information identifier, at least one The second direct link data is received on the second receiving carrier frequency.
  • the second terminal device determines the first according to the mapping relationship between the bit bits in the bit string and the transmission carrier frequency, and the value of each bit in the bit string.
  • the second receiving carrier frequency used by the terminal device to send the second direct link data.
  • the kth bit corresponds to the kth transmission carrier frequency, and when the first indication information received by the second terminal device is 00010101, it is determined that the first terminal device sends the first, third, and fifth second receiving carrier frequencies.
  • the second direct link data when the first indication information received by the second terminal device is 00010101, it is determined that the first terminal device sends the first, third, and fifth second receiving carrier frequencies.
  • the second direct link data when the first indication information received by the second terminal device is 00010101, it is determined that the first terminal device sends the first, third, and fifth second receiving carrier frequencies.
  • the second terminal device acquires the receiving carrier frequency list corresponding to the direct link data by using a pre-configuration or network configuration manner, when the second terminal device receives After the first indication information, the second terminal device searches for the direct link data on the multiple receiving carrier frequencies indicated by the receiving carrier frequency list, and after detecting the corresponding direct link data on the second receiving carrier frequency, the monitoring is performed.
  • the second receiving carrier frequency receives the second direct link data.
  • the foregoing receiving carrier frequency list includes: at least one receiving carrier frequency.
  • the second terminal device may obtain the receiving carrier frequency list from the access network device by using RRC signaling or a system message.
  • the second terminal device obtains, in advance, the receiving carrier frequency corresponding to the direct carrier link data from the access network, including the carrier frequency 1, the carrier frequency 2, and the carrier frequency 3.
  • the first terminal device is currently in the carrier frequency.
  • the first terminal device determines to increase the carrier frequency 2 to send the direct link data
  • the first terminal device carries the first indication information in the MAC PDU sent by the carrier frequency 1, and the second terminal device receives the first indication information.
  • the direct link data is received on the carrier frequency 1, the carrier frequency 2, and the carrier frequency 3 according to the received carrier frequency list, and finally the corresponding direct link data is found on the carrier frequency 1 and the carrier frequency 2.
  • the carrier frequency 1 and the carrier frequency 2 are continuously monitored to receive the direct link data.
  • the service type of the first direct link data sent by the first transmission carrier frequency and the second direct link data sent by the second transmission carrier frequency are indicated.
  • the MAC PDU in which the first direct link data is located may include the first service identifier information
  • the MAC PDU in which the second direct link data is located may include the second service identifier information.
  • the first service identifier information is used to identify the service type of the first direct link data
  • the second service identifier information is used to identify the service type of the second direct link data, the first service identifier information and the second service identifier.
  • the information can be the same, that is, the two direct link data are the same type of direct link data.
  • the first service identifier information and the second service identifier information may include at least one of the following: a source address, a destination address, a service type identifier, a priority identifier, a direct link bearer identifier, a logical channel identifier, and a flow identifier.
  • the receiving, by the second terminal device, the second direct link data on the second transmission carrier frequency may further include:
  • the second terminal device identifies the service type of the second direct link data according to the second service identification information, and if the service type of the second direct link data is the service type of interest, the second transmission carrier frequency is used. Receiving the second direct link data, otherwise giving up receiving the second direct link data.
  • the method for the second terminal device to adjust the receiving chain to receive a certain type of service is not limited by the present invention.
  • the second terminal device may also prioritize the services of interest and receive the direct link data according to the service priority order.
  • the interest of the direct link data with the service type 1 is greater than the direct link data with the service type 2, and the direct link data with the service type 1 is assumed to be sent on the carrier frequency 1 and the carrier frequency 2.
  • the direct link data of the service type 2 is transmitted on the carrier frequency 3.
  • the second terminal device can only receive the direct link data on the two carrier frequencies, the second terminal device obtains the straight line of the service type 1.
  • the second terminal device After the first indication information corresponding to the link data is obtained, that is, according to the first indication information, when the direct link data with the service type 1 is sent, the second terminal device transmits according to the service priority order and itself.
  • the technical solution shown in FIG. 5 may further include that the first terminal device sends the direct link data by using a suitable transmission carrier frequency.
  • the first terminal device obtains the first carrier frequency configuration information, where the first carrier frequency configuration information includes a first transmission carrier frequency identifier and at least one second transmission carrier frequency identifier, where the first transmission carrier frequency identifier is used to identify the first transmission carrier identifier Frequency, the at least one second transmission carrier identifier is used to identify the at least one second transmission carrier frequency, and the transmission priority of the first transmission carrier frequency is higher than any second transmission carrier frequency of the at least one second transmission carrier frequency;
  • the first terminal device sends the first direct link data by using the first transport carrier frequency with the highest transmission priority according to the first carrier frequency configuration information; when the first terminal device determines to adopt the first transmission carrier frequency
  • the first terminal device sends the second direct link according to the first carrier frequency configuration information by using the second transmission carrier frequency whose transmission priority is lower than the first transmission carrier frequency. data.
  • the first terminal device may obtain the first carrier frequency configuration information from the access network device, where the first carrier frequency configuration information may be included in the RRC dedicated signaling or system message, that is, the first terminal device may pass the access network device.
  • the transmitted RRC dedicated signaling or system message acquires the first carrier frequency configuration information.
  • the first carrier configuration information is used by the first terminal device to determine, according to the first carrier configuration information, a transmission carrier frequency used when transmitting direct link data.
  • Each of the carrier frequency identifiers in the transmission carrier frequency information may be a frequency point for transmitting a carrier frequency, and may also be an index number for transmitting a carrier frequency.
  • the first carrier configuration information may be any one of the following (a), (b), (c), and (d):
  • the transmission carrier identifiers in the first carrier configuration information may be arranged in descending order of transmission priority of the transmission carrier frequency. After the first terminal device obtains the first carrier configuration information, it is determined to adopt The first direct link data and the first indication information are sent by the transmission carrier frequency corresponding to the first transmission carrier identifier.
  • the transmission identifiers corresponding to the first to eighth eight transmission carrier frequencies are 1-8, and the transmission priorities of the eight transmission carrier frequencies are sequentially decreased from the first to the eighth, and the first carrier frequency configuration information is The order of the transmitted carrier frequency identifier is 12345678.
  • the transmission carrier identifier in the first carrier configuration information may be arranged in descending order of transmission priority of the transmission carrier frequency, and after the first terminal device obtains the first carrier configuration information, determining The first direct link data and the first indication information are sent by using a transmission carrier frequency corresponding to the last transmission carrier identifier.
  • the transmission identifiers corresponding to the first to eighth eight transmission carrier frequencies are 1-8, and the transmission priorities of the eight transmission carrier frequencies are sequentially decreased from the first to the eighth, and the first carrier frequency configuration information is The order of the transmitted carrier frequency identifier is 87654321.
  • the first carrier frequency configuration information may further include a first transmission priority identifier and at least one second transmission priority identifier, where the first transmission priority identifier corresponds to the first transmission carrier identifier, at least one The second transmission priority identifier is in one-to-one correspondence with the at least one second transmission carrier identifier, and the transmission priority corresponding to the first transmission priority identifier is higher than the second transmission priority identifier corresponding to any one of the at least one second transmission priority identifier.
  • a transmission priority where each transmission priority identifier is used to identify a priority of a transmission carrier frequency identified by a transmission carrier identifier corresponding to the transmission priority identifier;
  • the first terminal device obtains the first carrier frequency configuration information, determining the transmission carrier frequency identified by the transmission carrier identifier corresponding to the first transmission priority identifier to send the first direct link data and the first indication information.
  • the transmission priority may be a number, or a letter, or other identifier, such as: the number 1 or the letter A identifies the highest priority.
  • the transmission identifiers corresponding to the first to eighth eight transmission carrier frequencies are 1-8, and the transmission priorities of the eight transmission carrier frequencies are sequentially decreased from the first to the eighth, and the first carrier frequency configuration information is
  • the eight transmission priority identifiers are set from the AH, and the transmission priorities identified by the eight transmission priority identifiers of the AH are sequentially decreased according to the order of the AH, the letter A corresponds to the transmission carrier identifier 1, and the letter B corresponds to the transmission carrier identifier 2.
  • the letter C corresponds to the transmission carrier frequency identifier 3
  • the letter D corresponds to the transmission carrier frequency identifier 4
  • the letter E corresponds to the transmission carrier frequency identifier 5
  • the letter F corresponds to the transmission carrier frequency identifier 6
  • the letter G corresponds to the transmission carrier frequency identifier 7
  • the letter H corresponds to the transmission carrier.
  • the first carrier configuration information may further include the third service identifier information and the at least one fourth service identifier information, wherein the at least one fourth service identifier information is in one-to-one correspondence with the at least one second transport carrier identifier.
  • the third service identifier is used to indicate the service type of the direct link data sent on the transport carrier frequency identified by the first transport carrier identifier
  • each fourth service identifier information is used to indicate the second corresponding to the fourth service identifier information. Transmitting the service type of the direct link data sent on the transmission carrier frequency identified by the carrier frequency identifier.
  • the third service identifier is carried in the MAC PDU in which the direct link data sent by the first transmission carrier frequency with the highest transmission priority is located, and the fourth service identifier is used.
  • the first service identification information may be the third service identification information, and the second service identification information may be the fourth one.
  • the first service identification information may be the fourth service identification information, where the second service identification information may be the fourth.
  • Business identification information may be used.
  • the service identifier information and the third service identifier information of the at least one fourth service identifier information may be the same or different, and the third service identifier information and the fourth service identifier information include at least one of the following information: , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the first terminal device may transmit the direct link data according to the first carrier frequency configuration information by using a suitable transmission carrier frequency, such as: important information (such as the first indication information).
  • a suitable transmission carrier frequency such as: important information (such as the first indication information).
  • the first transmission carrier frequency with the highest priority is used for transmission, so that the second terminal device receives the first indication information well, and improves the data transmission performance.
  • the solution in FIG. 5 may further include:
  • the second terminal device acquires the second carrier frequency configuration information, where the second carrier frequency configuration information includes a first receiving carrier frequency identifier and at least one second receiving carrier frequency identifier, where the first receiving carrier frequency identifier is used to identify the first receiving carrier Frequency, the at least one second receiving carrier identifier is used to identify the at least one second receiving carrier frequency, and the receiving priority of the first receiving carrier frequency is higher than any second receiving carrier frequency of the at least one second receiving carrier frequency;
  • the second terminal device receives the first direct link data and the first indication information on the first receiving carrier frequency with the highest receiving priority according to the second carrier frequency configuration information, and when the second terminal device receives the first After indicating the information, the second terminal device receives the second direct link data by using the at least one second receiving carrier frequency whose receiving priority is lower than the first receiving carrier frequency according to the second carrier frequency configuration information.
  • the second carrier configuration information is used by the second terminal device to determine a carrier frequency for receiving the direct link data according to the second carrier frequency configuration information, and the second terminal device can obtain the second carrier frequency configuration from the access network device.
  • the second carrier configuration information may be included in the RRC dedicated signaling or the system message, that is, the second terminal device may obtain the second carrier frequency configuration information by using the RRC dedicated signaling or the system message sent by the access network device.
  • the second carrier configuration information may be referenced to the second carrier configuration information sent by the access network device to the first terminal device, and is any one of the following information:
  • the receiving carrier frequency identifier in the second carrier frequency configuration information may be arranged in descending order of receiving priority of the receiving carrier frequency, and when the second terminal device obtains the second carrier frequency configuration information, determining to adopt the most ranked carrier frequency
  • the first received carrier frequency corresponding to the received carrier frequency identifier transmits the first direct link data and the first indication information.
  • the receiving identifiers corresponding to the first to eighth eight receiving carrier frequencies are 1-8, and the receiving priorities of the eight receiving carrier frequencies are sequentially decreased from the first to the eighth, and the second carrier frequency configuration information is The order of the received carrier frequency identifier is 12345678.
  • the receiving carrier frequency identifier in the second carrier frequency configuration information may be arranged in the order of receiving priority of the receiving carrier frequency from low to high. After the second terminal device obtains the second carrier frequency configuration information, determining to adopt The first direct link data and the first indication information are sent by receiving the carrier frequency corresponding to the last received carrier frequency identifier.
  • the receiving identifiers corresponding to the first to eighth eight receiving carrier frequencies are 1-8, and the receiving priorities of the eight receiving carrier frequencies are sequentially decreased from the first to the eighth, and the second carrier frequency configuration information is The order of the received carrier frequency identifier is 87654321.
  • the second carrier frequency configuration information may further include a first receiving priority identifier and at least one second receiving priority identifier, where the first receiving priority identifier corresponds to the first receiving carrier identifier, and at least one second The receiving priority identifier is in one-to-one correspondence with the at least one second receiving carrier identifier, and the receiving priority corresponding to the first receiving priority identifier is higher than the receiving of the second receiving priority identifier in the second receiving priority identifier. Priority, each receiving priority identifier is used to identify a priority of the receiving carrier frequency identified by the receiving carrier identifier corresponding to the receiving priority identifier;
  • the second terminal device After acquiring the second carrier frequency configuration information, the second terminal device determines the receiving carrier frequency identified by the received carrier frequency identifier corresponding to the first receiving priority identifier to send the first direct link data and the first indication information.
  • the receiving priority may be a number, or a letter, or other identifier, such as: using the number 1 or the letter A to identify the highest priority.
  • the receiving identifiers corresponding to the first to eighth eight receiving carrier frequencies are 1-8, and the receiving priorities of the eight receiving carrier frequencies are sequentially decreased from the first to the eighth, and the second carrier frequency configuration information is
  • the eight receiving priority identifiers are set from the AH, and the receiving priorities identified by the eight receiving priority identifiers of the AH are sequentially decreased according to the order of the AH, the letter A corresponds to the receiving carrier frequency identifier 1, and the letter B corresponds to the receiving carrier frequency identifier 2,
  • the letter C corresponds to the receiving carrier frequency identifier 3
  • the letter D corresponds to the receiving carrier frequency identifier 4
  • the letter E corresponds to the receiving carrier frequency identifier 5
  • the letter F corresponds to the receiving carrier frequency identifier 6
  • the letter G corresponds to the receiving carrier frequency identifier 7
  • the letter H corresponds to
  • the third service identifier is used to indicate the service type of the direct link data received on the receive carrier frequency that is identified by the first receive carrier frequency identifier, and each fourth service identifier information is used to indicate the second receive corresponding to the fourth service identifier information.
  • the third service identifier is carried in the MAC PDU in which the direct link data sent by the first receiving carrier frequency with the highest priority is received, and the fourth service identifier is used.
  • the first service identification information may be the third service identification information, and the second service identification information may be the fourth one.
  • the first service identification information may be the fourth service identification information, where the second service identification information may be the fourth.
  • Business identification information may be used.
  • the service identifier information and the third service identifier information of the at least one fourth service identifier information may be the same or different, and the third service identifier information and the fourth service identifier information include at least one of the following information: , destination address, service type identifier, priority identifier, direct link bearer identifier, logical channel identifier, and flow identifier.
  • the second terminal device may receive the direct link data according to the second carrier frequency configuration information by using an appropriate receiving carrier frequency, such as: important information (such as the first indication information).
  • an appropriate receiving carrier frequency such as: important information (such as the first indication information).
  • the first receiving carrier frequency with the highest priority is used for receiving, so that the second terminal device receives the first indication information well, and improves the data receiving performance.
  • the solution shown in FIG. 5 may further include:
  • the first terminal device sends the SA data corresponding to the second direct link data to the second terminal device, where the SA data corresponding to the second direct link data can be used to indicate the data related to the second direct link data transmission.
  • Control information (such as time-frequency resource location, adjustment coding mode, service priority, transmission time interval, etc.), so that when the second terminal device receives the SA data, it receives the second direct link according to the control information indicated by the SA data. data.
  • the solution shown in FIG. 5 may further include:
  • the second terminal device processes the second direct link data received from the at least one second transmission carrier frequency according to the SA data.
  • the process of processing the direct link data by the second terminal device according to the SA data may refer to the prior art, and details are not described herein again.
  • another multi-carrier transmission method may include:
  • Step 601 The access network device sends the first carrier frequency configuration information to the first terminal device, and sends the second carrier frequency configuration information to the second terminal device.
  • the first carrier frequency configuration information is the carrier frequency configuration information acquired by the first terminal device in the embodiment of the present invention
  • the second carrier frequency configuration information is the carrier frequency configuration information acquired by the second terminal device in the embodiment of the present invention.
  • the carrier frequency configuration information and the second carrier frequency configuration information are the same as the first carrier frequency configuration information and the second carrier frequency configuration information in the scheme shown in FIG. 5, and details are not described herein again.
  • the access network device may send carrier configuration information to the first terminal device and the second terminal device by using RRC dedicated signaling or system message.
  • the access network device may send the carrier frequency configuration information to the first terminal device and the second terminal device at the same time, or may send the carrier frequency configuration information to the first terminal device and the second terminal device in succession. This is not limited.
  • Step 602 The first terminal device receives the first carrier frequency configuration information from the access network device, and the second terminal device receives the second carrier frequency configuration information from the access network device.
  • the first terminal device and the second terminal device may receive the first carrier frequency configuration information and the second carrier frequency configuration information by using an RRC dedicated signaling or a system message.
  • first terminal device and the second terminal device may receive the carrier frequency configuration information at the same time, or may receive the carrier frequency configuration information in succession, which is not limited in this embodiment of the present invention.
  • Step 603 The first terminal device acquires the first direct link data.
  • the step 603 can be performed by referring to step 501, and details are not described herein again.
  • Step 604 The first terminal device sends the first direct link data and the first indication information to the second terminal device according to the first carrier frequency configuration information.
  • the first terminal device may send the first direct link data and the first indication information to the second terminal device according to the first carrier frequency configuration information, where the first terminal device may include:
  • the first terminal device determines, according to the first carrier frequency configuration information, a first transmission carrier frequency with the highest transmission priority, and sends the first direct link data and the first indication information to the second terminal device at the first transmission carrier frequency.
  • the first terminal device can determine the first transmission carrier frequency with the highest transmission priority according to the first carrier frequency configuration information, and the scheme shown in FIG. 5 can be referred to, and details are not described herein again.
  • Step 605 The second terminal device receives the first direct link data and the first indication information from the first transmission carrier frequency according to the second carrier frequency configuration information, and receives the first transmission carrier frequency according to the first indication information. Two direct link data.
  • Step 605 can be performed by referring to step 503, and details are not described herein.
  • step 601, step 602, and step 603 may not be limited to the execution sequence shown in FIG. 6.
  • step 601 and step 602 may also be performed after step 603. The embodiment does not limit this.
  • each node for example, the first terminal device, the second terminal device, and the access network device, in order to implement the above functions, includes corresponding hardware structures and/or software modules for performing the respective functions.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiment of the present invention may divide the function modules of the first terminal device, the second terminal device, and the access network device according to the foregoing method.
  • each function module may be divided according to each function, or two or more functions may be used.
  • the functionality is integrated in a processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 7 shows a possible composition diagram of the first terminal device, where the first terminal device can be used to execute the first terminal device involved in the foregoing embodiment.
  • the first terminal device may include: an obtaining unit 70, a sending unit 71;
  • the obtaining unit 70 is configured to support the first terminal device to perform step 501 shown in FIG. 5 and steps 602 and 603 in FIG. 6.
  • the sending unit 71 is configured to support the first terminal device to perform step 502 in FIG. 5, step 604 in FIG.
  • the first terminal device provided by the embodiment of the present invention is configured to perform the foregoing multi-carrier frequency transmission method, so that the same effect as the multi-carrier frequency transmission method described above can be achieved.
  • FIG. 8 shows a device in the form of a product of a chip for performing the functions of the first terminal device in the above embodiment, as shown in FIG.
  • the processing module 80 and the communication module 81 are included.
  • the processing module 80 is for controlling management of the actions of the device, for example, the processing module 80 is configured to support the device to perform step 501 in FIG. 5, step 603 in FIG. 6, and/or other techniques for the techniques described herein. process.
  • Communication module 81 is used to support communication of devices with other network entities, such as with the functional modules or network entities illustrated in FIG.
  • the apparatus can also include a storage module 82 for storing program code and data for the device.
  • the processing module 80 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 81 may be a transceiver, a transceiver circuit, or the like.
  • the storage module 82 can be a memory.
  • the processing module 80 is a processor
  • the communication module 81 is a transceiver
  • the storage module 82 is a memory
  • the device involved in the embodiment of the present invention may be the device shown in FIG.
  • FIG. 9 shows a possible composition diagram of the second terminal device, where the second terminal device can be used to execute the second terminal device involved in the foregoing embodiment.
  • the second terminal device may include: a receiving unit 90, an obtaining unit 91;
  • the receiving unit 90 is configured to support the second terminal device to perform step 503 shown in FIG. 5, step 605 shown in FIG. 6.
  • the obtaining unit 91 is configured to support the second terminal device to perform step 602 in FIG. 6.
  • the second terminal device provided by the embodiment of the present invention is configured to perform the foregoing multi-carrier frequency transmission method, so that the same effect as the multi-carrier frequency transmission method described above can be achieved.
  • Fig. 10 shows a device which is in the form of a product of a chip for performing the functions of the second terminal device in the above embodiment.
  • the apparatus may include a processing module 100 and a communication module 101.
  • the processing module 100 is for controlling management of the actions of the device.
  • the processing module 100 is configured to support the device to perform step 602 of FIG. 6 and/or other processes for the techniques described herein.
  • the communication module 101 is used to support communication of devices with other network entities, such as with the functional modules or network entities shown in FIG.
  • the apparatus can also include a storage module 102 for storing program code and data for the device.
  • the processing module 100 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 101 may be a transceiver, a transceiver circuit, or the like.
  • the storage module 102 can be a memory.
  • the processing module 100 is a processor
  • the communication module 101 is a transceiver
  • the storage module 102 is a memory
  • the device involved in the embodiment of the present invention may be the device shown in FIG.
  • FIG. 11 is a schematic diagram showing a possible configuration of an access network device.
  • the access network device may include: a generating unit 110 and a sending unit. 111;
  • the generating unit 110 is configured to support the access network device to generate carrier frequency configuration information.
  • the sending unit 111 is configured to support the access network device to perform step 601 shown in FIG. 6.
  • the access network device provided by the embodiment of the present invention is configured to perform the foregoing multi-carrier frequency transmission method, so that the same effect as the multi-carrier frequency transmission method described above can be achieved.
  • Fig. 12 shows a device which is in the form of a product of a chip for performing the functions of the access network device in the above embodiment.
  • the apparatus may include a processing module 120 and a communication module 121.
  • the processing module 120 is configured to perform control management on the action of the device.
  • the processing module 120 is configured to support the device to perform a function of acquiring carrier frequency configuration information.
  • Communication module 121 is used to support communication of the device with other network entities, such as with the functional modules or network entities illustrated in FIG.
  • the apparatus can also include a storage module 122 for storing program code and data for the apparatus.
  • the processing module 120 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 121 can be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the storage module 122 can be a memory.
  • the processing module 120 is a processor
  • the communication module 121 is a communication interface
  • the storage module 122 is a memory
  • the device involved in the embodiment of the present invention may be the device shown in FIG.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used.
  • the combination may be integrated into another device, or some features may be ignored or not performed.
  • 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 be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . 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 above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a readable storage medium.
  • the technical solution of the embodiments of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a device (which may be a microcontroller, chip, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例公开了一种多载频传输方法、设备及系统，涉及通信技术领域，解决了现有多载频传输时出现丢包，影响传输性能的问题。具体方案为：第一终端设备获取第一直连链路数据，在第一传输载频上向第二终端设备发送第一直连链路数据以及用于指示所述第一终端设备采用至少一个第二传输载频发送第二直连链路数据的第一指示信息，以便第二终端设备根据该指示信息调整接收链，在第二传输载频上接收第二直连链路数据。本发明实施例用于多载频传输的过程。

Description

一种多载频传输方法、设备及系统
本申请要求于2017年08月10日提交中国专利局、申请号为201710681955.1、申请名称为“一种多载波传输方法、设备及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信技术领域，尤其涉及一种多载频传输方法、设备及系统。
背景技术
随着社会的不断发展，汽车的普及程度越来越高，驾驶出行在给人们出行带来便利的同时，也给人类社会带来一些负面影响，例如，交通事故的频发。为了能够降低交通事故的发生概率，目前，车辆可以通过车对任何事物(vehicle to X，V2X)通信(如：车辆与车辆(vehicle to vehicle，V2V)通信、车辆与路边基础设施(vehicle to infrastructure，V2I)通信、车辆与行人(vehicle to pedestrian，V2P)通信、车辆与网络(vehicle to network，V2N)通信等)的方式来及时获取路况信息或接收信息服务，如：获取其他车辆广播的包括车速、行驶方向、具体位置、是否踩了紧急刹车等信息，并根据获取到的信息感知视距外的交通状况，从而对危险状况做出预判并进行及时避让。鉴于此，目前主流的无线通信技术—长期演进(long term evolution，LTE)针对V2X业务特性及传输需求执行了相关的标准，支持基于LTE的V2X直连通信。
但是，随着自动驾驶等技术的发展，车辆不但可以通过V2X直连通信与周围车辆或人或基础设施交互自身的车速、行驶方向、具体位置、是否踩了紧急刹车等信息，还可以与周围车辆共享传感器数据、视频数据、地图数据等大容量数据，这类业务的数据量相比传统V2X业务数据要更大，要求基于LTE的V2X直连通信技术能够支持为发送端提供更高的传输速率。
为了实现V2X直连通信中更高的传输速率，对于一个发送端来说，当业务数据的数量较大时，选择使用多个载频来传输业务数据(即通过将多个载频的传输资源聚合在一起来提升业务数据的传输速率)，但是，对于接收端而言，其接收能力有限，当发送端采用多个载频同时发送数据时，很容易导致接收端因能力受限不能完全监听发送端发送数据时的载频的问题，出现大量丢包的现象，严重影响传输性能。例如：如图1所示，发送端使用了载频1和载频2用于发送指定类型的业务数据。对于接收端来说，假定其只有两个接收链，并且分别用来监听载频2和载频3，当接收端对发送端发送的业务感兴趣时，由于接收能力受限，接收端2无法感知载频1在传输感兴趣的业务，其会持续监听载频2和载频3，从而漏听了载频1上的所有业务数据，出现大量丢包的现象，严重影响传输性能。
发明内容
本发明实施例提供一种多载频传输方法、设备及系统，解决了现有多载频传输时出现丢包，严重影响传输性能的问题。
为达到上述目的，本发明实施例采用如下技术方案：
一方面，本发明实施例提供了一种多载频传输方法，包括：
第一终端设备获取第一直连链路数据，在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息，其中，第一指示信息用于指示第一终端设备采用至少一个第二传输载频发送第二直连链路数据。
其中，第一终端设备、第二终端设备之间可以采用直连方式通信，第一终端设备可以为发送端，第二终端设备可以为接收端。需要说明的是，发送端和接收端为相对概念，发送端是指：向对端发送数据或信息的终端设备，相对的，接收端是指：接收对端发送的数据或信息的终端设备。
其中，第一直连链路数据和第二直连链路数据可以为同一类型的数据，也可以为不同类型的业务数据，第一直连链路数据和第二直连链路数据可以是同一个数据，也可以是不同的数据。
第一传输载频和至少一个第二传输载频为第一终端设备与第二终端设备间的不同传输载频，用于承载数据和/或信息。
与现有技术相比，在本发明实施例中，当发送端通过多传输载频向对端发送数据时，通过向对端发送指示信息来指明发送端采用多传输载频发送数据，以便接收端根据该指示信息获知发送端采用多传输载频发送数据，调整与多传输载频对应的接收链接收相应的数据，避免了接收端漏听载频造成的丢包现象，提升了数据传输性能。
在一种可能的设计中，第一终端设备可以采用下述任一方式向第二终端设备发送第一直连数据以及第一指示信息：
方式1：第一直连链路数据以及第一指示信息包含在媒体接入控制协议数据单元(media access control protocol data unit，MAC PDU)中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据以及第一指示信息。
其中，MAC PDU的格式如图5a所示，可以包含MAC头(MAC header)和MAC负载(MAC payload)，MAC payload可以包含第一指示信息和第一直连链路数据，MAC header可以专用MAC子头，该专用MAC子头用于指示MAC payload包含的第一指示信息、以及第一指示信息在MAC payload中的位置。
其中，上述专用MAC子头可以为专用逻辑信道标识(logical channel identify，LCID)。
此外，为了明确MAC PDU的格式、MAC PDU携带的数据的业务类型，图5a所示的MAC PDU还可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址可以用于指示MAC PDU携带的直连链路数据的业务类型。
可选的，为了降低信息传输冗余，第一终端设备确定采用至少K(K大于等于1)个传输载频发送直连链路数据可以作为MAC PDU携带专用子头和第一指示信息的触发条件，当第一终端设备确定采用至少K传输载频发送直连链路数据时，第一终端设备才将上述专用MAC子头和第一指示信息携带在MAC PDU中向第二终端设备发送，否则，不传输专用MAC子头和第一指示信息。可选择的，第一终端设备通过预配置，网络配置或者协议规范化的方式获取K值。
需要说明的是，图5a仅为MAC PDU的示例图，除图5a所示内容之外，MAC PDU 还可以包含其他内容，本发明实施例对此不进行限定。
方式2：第一直连链路数据以及第一指示信息包含在媒体接入控制协议数据单元(media access control protocol data unit，MAC PDU)中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据以及第一指示信息。
其中，MAC PDU的格式如图5b所示，可以包含MAC头(MAC header)和MAC负载(MAC payload)，MAC payload可以包含第一直连链路数据，MAC header可以包含第一指示信息。此外，为了明确MAC PDU的格式、MAC PDU携带的数据的业务类型，图5b所示的MAC PDU还可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址可以用于指示MAC PDU携带的直连链路数据的业务类型。
可选的，第一指示信息可以占用MAC头的固定比特位，成为MAC头的固定组成部分，当MAC PDU的版本标识为固定值时，该第一指示信息必须每次携带在MAC PDU中发送给第二终端设备，即当第一终端设备确定采用至少一个传输载频发送直连链路数据时，第一终端设备将第一指示信息携带在MAC头的固定比特位向第二终端设备发送，当第一终端设备未确定采用至少一个传输载频发送直连链路数据时，第一终端设备将用于携带第一指示信息的固定比特位填充为0或其他信息，表明第一终端设备不进行多载频传输。
可选的，第一指示信息可以在MAC头中的专用MAC控制元素(MAC Control Element)携带，该MAC控制元素可以采用专用的逻辑信道标识标识。
需要说明的是，图5b仅为MAC PDU的示例图，除图5b所示内容之外，MAC PDU还可以包含其他内容，本发明实施例对此不进行限定。
方式3：如图5c所示，第一指示信息包含在与第一直连链路数据对应的调度分配(scheduling assignment，SA)数据中，第一直连链路数据包含在MAC PDU中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据、以及通过在第一传输载频上发送SA数据向第二终端设备发送第一指示信息。
其中，SA数据可以包含与第一直连链路数据传输相关的控制信息，如：时频资源位置、调整编码方式、业务优先级、传输间隔周期等。
其中，MAC PDU可以包含MAC头和MAC负载，MAC负载可以包含第一直连链路数据，MAC头可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址可以用于指示MAC PDU携带的直连链路数据的业务类型。
需要说明的是，图5c仅为MAC PDU的示例图，除图5c所示内容之外，SA数据还可以包含其他内容，MAC PDU还可以包含其他内容，本发明实施例对此不进行限定。
如此，第一终端设备可以将第一直连链路数据和第一指示信息携带在MAC PDU、或者MAC PDU和SA数据，通过MAC PDU、或者MAC PDU和SA数据向第二终端设备发送第一直连链路数据和第一指示信息，将第一指示信息封装在现有数据格式中进行发送，不用开发新的信息格式来传输第一指示信息，降低了设计复杂度。
在一种可能的设计中，上述方式1-方式3中的第一指示信息可以为至少一个第二 传输载频的频点信息，该频段信息用于标识至少一个第二传输载频，如：可以为至少一个第二传输载频的载频标识、或者至少一个传输载频对应的索引号。
上述方式1-方式3中的第一指示信息还可以为包含至少一个比特位的比特串，至少一个比特位与至少一个第二传输载频一一对应，每个比特位携带的信息用于指示第一终端设备是否采用比特位对应的第二传输载频发送第二直连链路数据；至少一个比特位与至少一个第二传输载频的对应关系为预配置的，或至少一个比特位与至少一个第二传输载频的对应关系为网络配置的，或至少一个比特位与至少一个第二传输载频的对应关系为协议规范的。
上述方式1-方式3中的第一指示信息又可以为用于指示第一终端设备是否采用多传输载频发送直连链路数据的信息，而不用指明第一终端设备具体采用哪些传输载频发送直连链路数据。可选的，该信息可以是1位比特(bit)的指示信息，如：可以用比特数0表示第一终端设备未采用多载频传输直连链路数据，用比特数1表示第一终端设备采用多载频传输直连链路数据。
上述方式1-方式3中的第一指示信息又可以为使用的传输载频个数值，传输载频个数值用于指示第一终端设备使用的传输载频的个数。例如，第一指示信息指示第一终端使用K个传输载频，则代表第一终端根据传输优先级使用了前K个传输载频传输。传输载频(包括第二传输载频，也可包括第一传输载频)以及对应的优先级可以通过预配置、网络配置或者协议规范化的方式获取。载频个数值可以将第一传输载频计算在内，也可以不将第一传输载频计算在内。
如此，可以采用上述任一方式设计第一指示信息，提高了信息传输的灵活性。
在一种可能的设计中，第一终端在第一传输载频和第二传输载频上发送的数据可以为同一个业务类型的数据。
可选的，为了表明第一直连链路数据和第二直连链路数据为同类型的业务数据，第一直连链路数据所在的MAC PDU可以包括第一业务标识信息，第二直连链路数据所在的MAC PDU可以包括第二业务标识信息，第一业务标识信息与第二业务标识信息相同。
其中，第一业务标识信息用于标识第一直连链路数据的业务类型，第二业务标识信息用于标识第二直连链路数据的业务类型，第一业务标识信息和第二业务标识信息可以包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
需要说明的是，第一直连链路数据和第二直连链路数据也可为不同类型的业务数据，此时第一业务标识信息与第二业务标识信息可以不相同。
如此，可以在直连链路数据所在的MAC PDU中携带用于指示直连链路数据的业务类型的业务标识信息，以便第二终端设备接收到该直连链路数据时，根据该业务标识信息识别出接收到的直连链路数据的业务类型，若是自身感兴趣的业务数据，则将接收到直连链路数据传输给上层进行处理，否则，不予处理。
在一种可能的设计中，所述方法还可以包括：
第一终端设备获取载频配置信息，其中，载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，第一传输载频标识用于标识第一传输载频，至少一个第 二传输载频标识用于标识至少一个第二传输载频，第一传输载频的传输优先级高于至少一个第二传输载频中的任一第二传输载频。
可选的，第一终端设备可以从接入网设备获取载频配置信息，该载频配置信息可以包含在无线资源控制(radio resource control，RRC)专用信令或者系统消息中，即第一终端设备可以通过接入网设备发送的RRC专用信令或者系统消息获取到载频配置信息。
可选的，第一终端设备也可以从核心网设备获取载频配置信息。
其中，上述载频配置信息用于第一终端设备根据该载频配置信息确定传输直连链路数据时采用的传输载频。
如：第一终端设备根据载频配置信息，采用传输优先级最高的第一传输载频发送第一直连链路数据；当第一终端设备确定采用除第一传输载频之外的其他传输载频发送第二直连链路数据时，第一终端设备根据载频配置信息采用传输优先级低于第一传输载频的第二传输载频发送第二直连链路数据。
其中，第一终端设备可以根据第一终端设备的MAC层或者无线链路控制(radio link control，RLC)层或者分组数据汇聚协议(packet data convergence protocol，PDCP)层或者上层中的至少一个数据缓存量、或者网络指示、或者上层指示、或者其他预定规则确定是否采用除第一传输载频之外的其他传输载频发送第二直连链路数据。
如此，第一终端设备可以在获取到载频配置信息后，依照载频配置信息采用合适的传输载频传输直连链路数据，如：重要的信息(如第一指示信息)采用优先级最高的第一传输载频进行传输，以便第二终端设备很好地接收到第一指示信息，提高数据传输性能。
结合上述可能的实现方式，在再一种可能的实现方式中，
上述载频配置信息中可以采用下述方式来指明各传输载频的优先级：
传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，第一传输优先级标识与第一传输载频标识对应，至少一个第二传输优先级标识与至少一个第二传输载频标识一一对应，第一传输优先级标识对应的传输优先级高于至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级。
其中，上述第一传输优先级标识可以为数字、或者字母、或者其他标识符；如：可以用数字1或者字母A标识最高优先级。
如此，第一终端设备可以根据传输载频标识以及传输载频标识对应的优先级确定出优先级最高的传输载频，以及优先级次高的传输载频。
在一种可能的设计中，为了明确哪个传输载频传输哪种类型的业务数据，载频配置信息还可以包括第三业务标识信息和至少一个第四业务标识信息；
其中，至少一个第四业务标识信息与至少一个第二传输载频标识一一对应；第三业务标识用于指示第一传输载频标识所标识的传输载频上发送的直连链路数据的业务类型，每个第四业务标识信息用于指示第四业务标识信息对应的第二传输载频标识所标识的传输载频上发送的直连链路数据的业务类型。
其中，至少一个第四业务标识信息中的任一业务标识信息和第三业务标识信息可以相同，也可以不相同，第三业务标识信息和第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，第一终端设备可以根据传输载频对应的业务标识信息，将该业务标识信息对应的直连链路数据在该传输载频上进行传输，同时也可以将该业务标识信息携带在直连链路数据所在的MAC PDU中一起传输给第二终端设备。
需要说明的是，当业务标识信息携带在直连链路数据所在的MAC PDU中向第二终端设备发送时，该业务标识信息可以为第一终端设备从载频配置信息中获取的与传输载频对应的业务标识信息，如：上述第一业务标识信息可以为第三业务标识信息，第二业务标识信息可以为第四业务标识信息。
在一种可能的设计中，所述方法还包括：
第一终端设备向第二终端设备发送第二直连链路数据对应的SA数据，其中，第二直连链路数据对应的SA数据可以用于指明与第二直连链路数据传输相关的控制信息(如时频资源位置、调整编码方式、业务优先级、传输时间间隔等)，以便第二终端设备接收到该SA数据时，根据该SA数据指示的控制信息接收第二直连链路数据。
在一种可能的设计中，所述方法还包括：
第一终端设备从上层获取第一直连链路数据。
其中，所述上层可以为：第一终端设备的RLC层或者PDCP层。
需要说明的是，第一终端设备除了从上层获取第一直连链路数据外，还可以从上层获取第一直连链路数据对应的原语信息，其中，该原语信息可以包含用于指示第一直连链路数据的传输参数、业务特性等信息，如：可以包括源地址、目标地址等信息，该目标地址可以与第一直连链路数据的业务类型具有映射关系。上层下发的每一类直连链路数据都对应至少一个目标地址。
一方面，本发明实施例提供了一种第一终端设备，包括：
获取单元，用于获取第一直连链路数据；
发送单元，用于在第一传输载频上向第二终端设备发送获取单元获取到的第一直连链路数据以及第一指示信息，其中，第一指示信息用于指示第一终端设备采用至少一个第二传输载频发送第二直连链路数据。
其中，第一终端设备的具体实现方式可以参考上述方面或上述方面的可能的实现方式提供的多载频传输方法中第一终端设备的行为功能，在此不再赘述。因此，该方面提供的第一终端设备可以达到与上述方面相同的有益效果。
一方面，本发明实施例提供了一种第一终端设备，该第一终端设备可以实现上述方法实施例中第一终端设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该第一终端设备的结构中包括处理器和收发器，该处理器被配置为支持该第一终端设备执行上述方法中相应的功能。该收发器用于支持该第一终端设备与其他网元之间的通信。该第一终端设备还可以包括存储器，该存储器用于与处理器耦合，其保存该第一终端设备必要的程序指令和数据。
一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述第一终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
一方面，本发明实施例提供了一种计算机程序产品，该程序产品储存有上述第一终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
一方面，本发明实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与第一终端设备相应的功能。
又一方面，本发明实施例提供一种多载频传输方法，包括：
第二终端设备在第一接收载频上接收第一终端设备发送的第一直连链路数据以及第一指示信息，在至少一个第二接收载频上接收第二直连链路数据，其中，第一指示信息用于指示第一终端设备采用至少一个第二接收载频发送第二直连链路数据。
其中，第一终端设备、第二终端设备之间可以采用直连方式通信，第一终端设备可以为发送端，第二终端设备可以为接收端。需要说明的是，发送端和接收端为相对概念，发送端是指：向对端发送数据或信息的终端设备，相对的，接收端是指：接收对端发送的数据或信息的终端设备。
其中，第一直连链路数据和第二直连链路数据可以为同一类型的数据，也可以为不同类型的业务数据。
第一接收载频和至少一个第二接收载频为第一终端设备与第二终端设备间的不同接收载频，用于承载数据和/或信息。
需要说明的是，在本发明各实施例中，接收载频和传输载频为相对概念，接收载频可以指：接收端(即第二终端设备)接收直连链路数据采用的载频，相对的，传输载频可以指：发送端(即第一终端设备)发送直连链路数据采用的载频。通常情况下，第一终端设备发送直连链路数据采用的传输载频、第二终端设备接收直连链路数据时的接收载频可以为同一载频。
与现有技术相比，在本发明实施例中，当发送端通过多传输载频向对端发送数据时，通过向对端发送指示信息来指明发送端采用多传输载频发送数据，接收端根据该指示信息获知发送端采用多传输载频发送数据，调整与多接收载频对应的接收链接收相应的数据，避免了接收端漏听载频造成的丢包现象，提升了数据传输性能。
在一种可能的设计中，第一直连链路数据以及第一指示信息包含在媒体接入控制协议数据单元MAC PDU中，第二终端设备可以通过在第一接收载频上接收MAC PDU来接收第一直连链路数据以及第一指示信息，其中，MAC PDU的格式如上述方面的可能的实现方式中方式1或方式2所述，在此不再赘述；或者，
第二终端设备可以通过在第一接收载频上接收MAC PDU来接收第一直连链路数据、以及通过在第一接收载频上接收SA数据来接收第一指示信息，其中，第一指示信息包含在与第一直连链路数据对应的调度分配SA数据中，第一直连链路数据包含在MAC PDU中，SA数据的格式和MAC PDU的格式与上述方式3相同，在此不再赘述。
如此，第二终端设备可以通过MAC PDU、或者MAC PDU和SA数据接收第一直连链路数据和第一指示信息，即通过现有数据格式接收第一直连链路数据和第一指示信息，不用开发新的信息格式来携带第一指示信息，降低了设计复杂度。
在一种可能的设计中，上述第一指示信息可以为至少一个第二接收载频的频点信息，该频段信息用于标识至少一个第二接收载频，如：可以为至少一个第二接收载频的载频标识、或者至少一个接收载频对应的索引号。
上述第一指示信息还可以为包含至少一个比特位的比特串，至少一个比特位与至少一个第二接收载频一一对应，每个比特位携带的信息用于指示第一终端设备是否采用比特位对应的第二接收载频发送第二直连链路数据；至少一个比特位与至少一个第二接收载频的对应关系为预配置的，或至少一个比特位与至少一个第二接收载频的对应关系为网络配置的，或至少一个比特位与至少一个第二接收载频的对应关系为协议规范的。
上述第一指示信息又可以为用于指示第二终端设备是否采用多接收载频接收直连链路数据的信息，而不用指明第二终端设备具体采用哪些接收载频接收直连链路数据。可选的，该信息可以是1位比特(bit)的指示信息，如：可以用比特数0表示第二终端设备未采用多接收载频接收直连链路数据，用比特数1表示第二终端设备采用多接收载频接收直连链路数据。
上述第一指示信息又可以为使用的接收载频个数值，接收载频个数值用于指示第二终端设备使用的接收载频的个数。例如，第一指示信息指示第二终端使用K个接收载频，则代表第二终端根据接收优先级使用了前K个接收载频接收。接收载频(包括第二接收载频，也可包括第一接收载频)以及对应的优先级可以通过预配置、网络配置或者协议规范化的方式获取。载频个数值可以将第一接收载频计算在内，也可以不将第一接收载频计算在内。
如此，可以采用上述任一方式设计第一指示信息，提高了信息接收的灵活性。
在一种可能的设计中，为了表明第一直连链路数据和第二直连链路数据为同类型的业务数据，第一直连链路数据所在的MAC PDU可以包括第一业务标识信息，第二直连链路数据所在的MAC PDU可以包括第二业务标识信息，第一业务标识信息与第二业务标识信息相同。
其中，第一业务标识信息用于标识第一直连链路数据的业务类型，第二业务标识信息用于标识第二直连链路数据的业务类型，第一业务标识信息和第二业务标识信息可以包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
需要说明的是，当第一直连链路数据和第二直连链路数据为不同类型的业务数据时，第一业务标识信息与第二业务标识信息可以不相同。
如此，第二终端设备可以根据直连链路数据所在的MAC PDU中携带的业务标识信息，识别待接收的直连链路数据的业务类型，若是自身感兴趣的业务数据，则将接收到直连链路数据传输给上层进行处理，否则，不予处理。
在一种可能的设计中，所述方法还可以包括：
第二终端设备获取载频配置信息，其中，载频配置信息包括第一接收载频标识和 至少一个第二接收载频标识，第一接收载频标识用于标识第一接收载频，至少一个第二接收载频标识用于标识至少一个第二接收载频，第一接收载频的接收优先级高于至少一个第二接收载频中的任一第二接收载频。
可选的，第二终端设备可以从接入网设备获取载频配置信息，该载频配置信息可以包含在RRC专用信令或者系统消息中，即第一终端设备可以通过接入网设备发送的RRC专用信令或者系统消息获取到载频配置信息。
其中，上述载频配置信息用于第二终端设备根据该载频配置信息确定接收直连链路数据的载频。如：第二终端设备根据载频配置信息，采用接收优先级最高的第一接收载频上接收第一直连链路数据以及第一指示信息，当第二终端设备接收到第一指示信息后，第二终端设备根据载频配置信息采用接收优先级低于第一接收载频的至少一个第二接收载频接收第二直连链路数据。
如此，第二终端设备可以在获取到载频配置信息后，依照载频配置信息采用合适的接收载频接收直连链路数据，如：采用优先级最高的第一接收载频接收重要的信息(如第一指示信息)，提高数据接收的准确性。
在一种可能的设计中，上述载频配置信息中可以采用下述方式来指明各接收载频的优先级：
接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，第一接收优先级标识与第一接收载频标识对应，至少一个第二接收优先级标识与至少一个第二接收载频标识一一对应，第一接收优先级标识对应的接收优先级高于至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
其中，上述第一接收优先级标识可以为数字、或者字母、或者其他标识符；如：可以用数字1或者字母A标识最高优先级。
如此，第二终端设备可以根据接收载频标识以及接收载频标识对应的优先级确定出优先级最高的接收载频，以及优先级次高的接收载频。
在一种可能的设计中，为了明确哪个接收载频接收哪种类型的业务数据，载频配置信息还可以包括第三业务标识信息和至少一个第四业务标识信息；
其中，至少一个第四业务标识信息与至少一个第二接收载频标识一一对应；第三业务标识用于指示第一接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型，每个第四业务标识信息用于指示第四业务标识信息对应的第二接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型。
其中，至少一个第四业务标识信息中的任一业务标识信息和第三业务标识信息可以相同，也可以不相同，第三业务标识信息和第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，第二终端设备可以根据接收载频对应的业务标识信息，识别出该接收载频上接收的直连链路数据的业务类型。
需要说明的是，第二终端设备接收到直连链路数据所在的MAC PDU携带的业务 标识信息可以与第二终端设备从载频配置信息中识别出的与接收载频对应的业务标识信息相同，即上述第一业务标识信息可以与第三业务标识信息相同，第二业务标识信息可以与第四业务标识信息相同。
在一种可能的设计中，所述方法还包括：
第二终端设备从第一终端设备接收第二直连链路数据对应的SA数据；
第二终端设备根据该SA数据，对从至少一个第二接收载频上接收到的第二直连链路数据进行处理。
其中，第二直连链路数据对应的SA数据可以用于指明与第二直连链路数据传输相关的控制信息(如时频资源位置、调整编码方式、业务优先级、传输时间间隔等)。
又一方面，本发明实施例提供了一种第二终端设备，包括：
接收单元，用于在第一接收载频上接收第一终端设备发送的第一直连链路数据以及第一指示信息，以及在至少一个第二接收载频上接收第二直连链路数据，其中，第一指示信息用于指示第一终端设备采用至少一个第二接收载频发送第二直连链路数据。
其中，第二终端设备的具体实现方式可以参考上述方面或上述方面的可能的实现方式提供的多载频传输方法中第二终端设备的行为功能，在此不再赘述。因此，该方面提供的第二终端设备可以达到与上述方面相同的有益效果。
又一方面，本发明实施例提供了一种第二终端设备，该第二终端设备可以实现上述方法实施例中第二终端设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该第二终端设备的结构中包括处理器和收发器，该处理器被配置为支持该第二终端设备执行上述方法中相应的功能。该收发器用于支持该第二终端设备与其他网元之间的通信。该第二终端设备还可以包括存储器，该存储器用于与处理器耦合，其保存该第二终端设备必要的程序指令和数据。
又一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述第二终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
又一方面，本发明实施例提供了一种计算机程序产品，该程序产品储存有上述第二终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
又一方面，本发明实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与第二终端设备相应的功能。
再一方面，本发明实施例提供了一种多载频传输方法，包括：
接入网设备生成载频配置信息，向终端设备发送载频配置信息，其中，载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，第一传输载频标识用于标识第一传输载频，至少一个第二传输载频标识用于标识至少一个第二传输载频，第一传输载频的接收优先级高于至少一个第二传输载频中的任一第二传输载频。
其中，接入网设备向终端设备发送载频配置信息可以指：接入网设备向发送直连 链路数据的发送端发送载频配置信息。
如此，可以通过接入网设备向终端设备发送载频配置信息，实现终端设备根据该载频配置信息采用合适的传输载频发送直连链路数据，或者根据该载频配置信息调整接收直连链路数据的载频。
在一种可能的设计中，上述载频配置信息中可以采用下述方式来指明各传输载频的优先级：
传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，第一传输优先级标识与第一传输载频标识对应，至少一个第二传输优先级标识与至少一个第二传输载频标识一一对应，第一传输优先级标识对应的传输优先级高于至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级。
其中，上述第一传输优先级标识可以为数字、或者字母、或者其他标识符；如：可以用数字1或者字母A标识最高优先级。
如此，终端设备在接收到载频配置信息后，可以根据传输载频标识以及传输载频标识对应的优先级确定出优先级最高的传输载频，以及优先级次高的传输载频。
在一种可能的设计中，为了明确哪个传输载频传输哪种类型的业务数据，载频配置信息还可以包括第一业务标识信息和至少一个第二业务标识信息；
其中，至少一个第二业务标识信息与至少一个第二传输载频标识一一对应；第二业务标识用于指示第一传输载频标识所标识的传输载频上发送的直连链路数据的业务类型，每个第二业务标识信息用于指示第二业务标识信息对应的第二传输载频标识所标识的传输载频上发送的直连链路数据的业务类型。
其中，至少一个第二业务标识信息中的任一业务标识信息和第一业务标识信息可以相同，也可以不相同，第一业务标识信息和第二业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，终端设备接收到直连链路数据后，可以根据发送该直连链路数据的传输载频对应的业务标识信息，识别出该直连链路数据的业务类型。
在一种可能的设计中，接入网设备可以从上层获取载频配置信息。
其中，所述上层可以为接入网设备的RLC层或PDCP层。
在一种可能的设计中，接入网设备可以通过RRC信令或者系统消息向终端设备发送载频配置信息。
如此，可以将载频配置信息携带在RRC信令或者系统消息中向终端设备发送，提供了信息发送的安全性。
再一方面，本发明实施例提供了一种接入网设备，包括：
生成单元，用于生成载频配置信息；
发送单元，用于向终端设备发送生成单元获取到的载频配置信息，其中，载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，第一传输载频标识用于标识第一传输载频，至少一个第二传输载频标识用于标识至少一个第二传输载频，第 一传输载频的接收优先级高于至少一个第二传输载频中的任一第二传输载频。
其中，接入网设备的具体实现方式可以参考上述方面或上述方面的可能的实现方式提供的多载频传输方法中接入网设备的行为功能，在此不再赘述。因此，该方面提供的接入网设备可以达到与上述方面相同的有益效果。
再一方面，本发明实施例提供了一种接入网设备，该接入网设备可以实现上述方法实施例中接入网设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该接入网设备的结构中包括处理器和通信接口，该处理器被配置为支持该接入网设备执行上述方法中相应的功能。该通信接口用于支持该接入网设备与其他网元之间的通信。该接入网设备还可以包括存储器，该存储器用于与处理器耦合，其保存该接入网设备必要的程序指令和数据。
再一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述接入网设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
再一方面，本发明实施例提供了一种计算机程序产品，该程序产品储存有上述接入网设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
再一方面，本发明实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与接入网设备相应的功能。
再一方面，本发明实施例提供了一种多载频传输方法，包括：
接入网设备生成载频配置信息，向终端设备发送载频配置信息，其中，载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，第一接收载频标识用于标识第一接收载频，至少一个第二接收载频标识用于标识至少一个第二接收载频，第一接收载频的接收优先级高于至少一个第二接收载频中的任一第二接收载频。
其中，接入网设备向终端设备发送载频配置信息可以指：接入网设备向接收直连链路数据的接收端发送载频配置信息。
如此，可以通过接入网设备向终端设备发送载频配置信息，实现终端设备根据该载频配置信息采用合适的接收载频发送直连链路数据，或者根据该载频配置信息调整接收直连链路数据的载频。
在一种可能的设计中，上述载频配置信息中可以采用下述方式来指明各接收载频的优先级：
接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，第一接收优先级标识与第一接收载频标识对应，至少一个第二接收优先级标识与至少一个第二接收载频标识一一对应，第一接收优先级标识对应的接收优先级高于至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
其中，上述第一接收优先级标识可以为数字、或者字母、或者其他标识符；如： 可以用数字1或者字母A标识最高优先级。
如此，终端设备在接收到载频配置信息后，可以根据接收载频标识以及接收载频标识对应的优先级确定出优先级最高的接收载频，以及优先级次高的接收载频。
在一种可能的设计中，为了明确哪个接收载频接收哪种类型的业务数据，载频配置信息还可以包括第一业务标识信息和至少一个第二业务标识信息；
其中，至少一个第二业务标识信息与至少一个第二接收载频标识一一对应；第二业务标识用于指示第一接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型，每个第二业务标识信息用于指示第二业务标识信息对应的第二接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型。
其中，至少一个第二业务标识信息中的任一业务标识信息和第一业务标识信息可以相同，也可以不相同，第一业务标识信息和第二业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，终端设备接收到直连链路数据后，可以根据接收该直连链路数据的接收载频对应的业务标识信息，识别出该直连链路数据的业务类型。
在一种可能的设计中，接入网设备可以从上层获取载频配置信息。
其中，所述上层可以为接入网设备的RLC层或PDCP层。
在一种可能的设计中，接入网设备可以通过RRC信令或者系统消息向终端设备发送载频配置信息。
如此，可以将载频配置信息携带在RRC信令或者系统消息中向终端设备发送，提供了信息发送的安全性。
再一方面，本发明实施例提供了一种接入网设备，包括：
生成单元，用于生成载频配置信息；
发送单元，用于向终端设备发送生成单元获取到的载频配置信息，其中，载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，第一接收载频标识用于标识第一接收载频，至少一个第二接收载频标识用于标识至少一个第二接收载频，第一接收载频的接收优先级高于至少一个第二接收载频中的任一第二接收载频。
其中，接入网设备的具体实现方式可以参考上述方面或上述方面的可能的实现方式提供的多载频传输方法中接入网设备的行为功能，在此不再赘述。因此，该方面提供的接入网设备可以达到与上述方面相同的有益效果。
再一方面，本发明实施例提供了一种接入网设备，该接入网设备可以实现上述方法实施例中接入网设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该接入网设备的结构中包括处理器和通信接口，该处理器被配置为支持该接入网设备执行上述方法中相应的功能。该通信接口用于支持该接入网设备与其他网元之间的通信。该接入网设备还可以包括存储器，该存储器用于与处理器耦合，其保存该接入网设备必要的程序指令和数据。
再一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述接入网设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
再一方面，本发明实施例提供了一种计算机程序产品，该程序产品储存有上述接入网设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
再一方面，本发明实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与接入网设备相应的功能。
再一方面，本发明实施例提供一种多载频传输系统，包含：上述方面或者上述方面中任一可能的实现方式所述的第一终端设备、和上述方面或者上述方面中任一可能的实现方式所述的第二终端设备；或者，
上述方面或者上述方面中任一可能的实现方式所述的第一终端设备、上述方面或者上述方面中任一可能的实现方式所述的第二终端设备、以及上述方面或者上述方面中任一可能的实现方式所述的接入网设备。
附图说明
图1为现有多载频传输示意图；
图2为本发明实施例提供的一种系统架构的简化示意图；
图3为本发明实施例提供的一种终端设备的组成示意图；
图4为本发明实施例提供的一种接入网设备的组成示意图；
图5为本发明实施例提供的一种多载频传输方法的流程图；
图5a为本发明实施例提供的MAC PDU的组成示意图；
图5b为本发明实施例提供的又一种MAC PDU的组成示意图；
图5c为本发明实施例提供的MAC PDU和SA数据的组成示意图；
图6为本发明实施例提供的一种多载频传输方法的流程图；
图7为本发明实施例提供的第一终端设备的组成示意图；
图8为本发明实施例提供的一种装置的组成示意图；
图9为本发明实施例提供的第二终端设备的组成示意图；
图10为本发明实施例提供的又一种装置的组成示意图；
图11为本发明实施例提供的接入网设备的组成示意图；
图12为本发明实施例提供的再一种装置的组成示意图。
具体实施方式
本发明实施例提供一种多载频传输方法，其基本原理是：在第一终端设备采用多载频传输直连链路数据时，向第二终端设备发送用于指示第二终端设备采用多载频传输的指示信息，以便第二终端设备根据该指示信息调整接收链来接收相应的数据。
下面将结合附图对本发明实施例的实施方式进行详细描述。
本发明实施例提供的多载频传输方法可以应用于支持多载频传输的任一通信系统，如：V2X通信系统。其中，V2X通信系统可以采用V2V通信方式或者V2I通信方式或者V2P通信方式或者V2N通信方式进行通信，下面以图2所示的采用V2V通信方式的通信系统作为本发明实施例的系统架构简化示意图，对本发明实施例提供的多载频传输方法进行阐述。
如图2所示，该通信系统可以包括第一终端设备、第二终端设备、以及接入网(access network，AN)设备。其中，第一终端设备为发送端，第二终端设备为接收端，第一终端设备与第二终端设备可以相互传输直连链路数据，第一终端设备、第二终端设备可以处于接入网设备的覆盖区域，也可以不处于接入网的覆盖区域，接入网设备可以与第一终端设备、第二终端设备通过无线方式连接。需要说明的是，在本发明实施例中，发送端和接收端为相对概念，发送端可以指向其他设备发送直连链路数据的终端设备，相对应的，接收端可以指接收其他设备发送的直连链路数据的终端设备，此外，图2仅为示例性架构图，除图2所示功能节点之外，该5G系统还可以包括其他功能节点，本发明实施例对此不进行限定。
其中，图2中的第一终端设备、第二终端设备可以为用户设备(user equipment，UE)，如车辆、蜂窝电话、无绳电话、会话发起协议(session initiation protocol，SIP)电话、智能电话、无线本地环路(wireless local loop WLL)站、个人数字助理(personal digital assistant PDA)、膝上型计算机、手持式通信设备、手持式计算设备、卫星无线设备、无线调制解调器卡和/或用于在无线系统上进行通信的其它设备。图2中的接入网设备可以为由多个AN节点组成的网络，用于实现无线物理层功能、资源调度和无线资源管理、无线接入控制以及移动性管理功能，AN节点可以为：接入节点、基站、增强型基站、下一代基站(generation nodeB，gNB)、收发点(transmission receive point，TRP)、传输点(transmission point，TP)或某种其它接入网设备。
具体的，图2中的第一终端设备、第二终端设备可以包含图3所示的部件。图3为本发明实施例提供的一种终端设备的组成示意图，如图3所示，该终端设备可以包括至少一个处理器31，存储器32、收发器33、通信总线34。需要说明的是，图3示出的设备结构并不构成对控制面节点的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，本发明实施例对此不进行限定。下面结合图3对控制面节点的各个构成部件进行具体的介绍：
处理器31是控制面节点的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器31是一个中央处理器(central processing unit，CPU)，也可以是特定集成电路(application specific integrated circuit，ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)。其中，处理器31可以通过运行或执行存储在存储器32内的软件程序，以及调用存储在存储器32内的数据，执行控制面节点的各种功能。
在具体的实现中，作为一种实施例，处理器31可以包括一个或多个CPU，例如图3中所示的CPU0和CPU1。在具体实现中，作为一种实施例，控制面节点可以包括多个处理器，例如图3中所示的处理器31和处理器35。这些处理器中的每一个可以是一个单核处理器(single-CPU)，也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器32可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或 者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器32可以独立存在，通过通信总线34与处理器31相连接。存储器32也可以和处理器31集成在一起。其中，所述存储器32用于存储执行本发明实施例提供的方案的软件程序，并由处理器31来控制执行。
收发器33，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。收发器33可以包括接收单元实现接收功能，以及发送单元实现发送功能；可选的，该收发器33可以为射频模块。
通信总线34，可以是工业标准体系结构(industry standard architecture，ISA)总线、外部设备互连(peripheral component，PCI)总线或扩展工业标准体系结构(extended industry standard architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图3中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
需要说明的是，图3中示出的设备结构并不构成对终端设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。尽管未示出，终端设备还可以包括显示器、电池、摄像头、蓝牙模块、全球定位系统(global positioning system，GPS)等模块，在此不再赘述。
当图3所示的终端设备为本发明实施例所述的第一终端设备时，该终端设备可以执行本发明实施例提供的多载频传输方法中第一终端设备的功能，如：终端设备中的处理器31可以用于获取第一直连链路数据，终端设备中的收发器33可以用于向其他终端设备发送第一直连链路数据以及用于指示终端设备采用至少一个第二传输载频发送第二直连链路数据的第一指示信息。
当图3所示的终端设备为本发明实施例所述的第二终端设备时，该终端设备可以执行本发明实施例提供的多载频传输方法中第二终端设备的功能，如：终端设备中的收发器33可以用于从第一接收载频接收第一直连链路数据和第一指示信息，终端设备中的处理器31可以用于根据指示信息确定其他终端设备采用多个第二接收传输发送第二直连链路数据，终端设备中的收发器33可以用于从第二接收传输载频接收第二直连链路数据。
图4为本发明实施例提供的一种接入网设备的组成示意图，如图4所示，该接入网设备可以包括至少一个处理器41、存储器42、通信接口43、通信总线44。下面结合图4对接入网设备的各个构成部件进行具体的介绍：
处理器41是接入网设备的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器41是一个CPU，也可以是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个DSP，或，一个或者多个FPGA。其中，处理器41可以通过运行或执行存储在存储器42内的软件程序，以及调用存储 在存储器42内的数据，执行接入网设备的各种功能。
在具体的实现中，作为一种实施例，处理器41可以包括一个或多个CPU，例如图4中所示的CPU0和CPU1。在具体实现中，作为一种实施例，接入网设备可以包括多个处理器，例如图4中所示的处理器41和处理器45。这些处理器中的每一个可以是一个single-CPU处理器，也可以是一个multi-CPU处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器42可以是ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM或者可存储信息和指令的其他类型的动态存储设备，也可以是EEPROM、CD-ROM或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器42可以是独立存在，通过通信总线44与处理器41相连接。存储器42也可以和处理器41集成在一起。其中，所述存储器42用于存储执行本发明方案的软件程序，并由处理器41来控制执行。
通信接口43，用于与其他设备或通信网络通信，如以太网，RAN，WLAN等。通信接口43可以包括接收单元实现接收功能，以及发送单元实现发送功能；具体的，该通信接口43可以为射频模块。
通信总线44，可以是ISA总线、PCI总线或EISA总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图4中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
图4所示的接入网设备可以执行本发明实施例提供的多载频传输方法中接入网设备执行的操作，如：接入网设备中的处理器41生成第一载频配置信息、第二载频位置信息，接入网设备中的通信接口43向第一终端设备发送第一载频配置信息，向第二终端设备发送第二载频配置信息。
下面结合图2所示的通信系统，对本发明实施例提供的多载频传输方法进行详细描述，其中，下述方法实施例中的设备可对应包含图3或图4所示的组成部件。需要说明的是，虽然在下述方法流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
图5为本发明实施例提供的一种多载频传输方法流程图，如图5所示，该方法可以包括：
步骤501：第一终端设备获取第一直连链路数据。
其中，第一终端设备可以为接入网覆盖下的终端设备，也可以为接入网覆盖范围之外的终端设备。
示例性的，第一终端设备可以从第一终端设备的上层(如RLC层或者PDCP层或者其他任一层)获取第一直连链路数据。
需要说明的是，第一终端设备除了从上层获取第一直连链路数据外，还可以从上层获取第一直连链路数据对应的原语信息，其中，该原语信息可以包含用于指示第一直连链路数据的传输参数、业务特性等信息，如：可以包括源地址、目标地址等信息，该目标地址可以与第一直连链路数据的业务类型具有映射关系。上层下发的每一类直 连链路数据都对应至少一个目标地址。
步骤502：第一终端设备在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息。
其中，第一传输载频可以为传输载频中传输优先级较高的传输载频。
第一指示信息用于指示第一终端设备采用至少一个第二传输载频发送第二直连链路数据。
第二直连链路数据和第一直连链路数据可以为同一业务类型的数据，也可以为不同业务类型的数据，第一直连链路数据和第二直连链路数据可以为同一数据，也可以为不同数据。
需要指出的是，第一终端设备在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息可以为：当第一终端设备确定采用多传输载频发送第二直连链路数据时，在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息，即第一终端设备确定采用多传输载频发送第二直连链路数据作为第一终端设备在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息的触发条件。
可选的，第一终端设备可以根据第一终端设备的上层(如MAC层或RLC层或PDCP层或其他层)中的至少一个数据缓存量、或者网络指示、或者上层指示、或者其他预定规则确定是否采用多传输载频发送第二直连链路数据。
步骤503：第二终端设备从第一传输载频接收第一终端设备发送的第一直连链路数据以及第一指示信息，根据第一指示信息在至少一个第二传输载频上接收第二直连链路数据。
其中，第二终端设备根据第一指示信息在指示一个第二传输载频上接收第二直连链路数据可以指：第二终端设备根据第一指示信息包含的内容确定第一终端设备采用至少一个第二传输载频发送第二直连链路数据，在至少一个第二传输载频上接收第二直连链路数据。
与现有技术相比，在图5所示方案中，当第一终端设备通过多传输载频向第二终端设备发送直连链路数据时，向第二终端设备发送指示信息来指明第一终端设备采用多传输载频发送直连链路数据，第二终端设备根据该指示信息获知第一终端设备采用多传输载频发送直连链路数据，调整与多传输载频对应的接收链接收相应的数据，避免了第二终端设备漏听载频造成的丢包现象，提升了数据传输性能。
示例性的，上述步骤502中第一终端设备在第一传输载频上向第二终端设备发送第一直连链路数据以及第一指示信息可以包括下述任一方式：
方式1：第一直连链路数据以及第一指示信息包含在MAC PDU中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据以及第一指示信息。
其中，MAC PDU的格式如图5a所示，可以包含MAC头和MAC负载，MAC payload可以包含第一指示信息和第一直连链路数据，MAC头可以包含专用MAC子头，该专用MAC子头用于指示MAC负载包含的第一指示信息、以及第一指示信息在MAC负载中的位置。
其中，上述专用MAC子头可以为专用LCID。
此外，为了明确MAC PDU的格式、MAC PDU携带的数据的业务类型，图5a所示的MAC PDU还可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址用于指示MAC PDU携带的直连链路数据的业务类型。
需要说明的是，图5a仅为MAC PDU的示例图，除图5a所示内容之外，MAC PDU还可以包含其他内容，本发明实施例对此不进行限定。
其中，该方式1中的第一指示信息可以为下述任一形式的信息：
(1)第一指示信息包含至少一个第二传输载频的频点信息，该频段信息用于标识至少一个第二传输载频，如：可以为至少一个第二传输载频的载频标识、或者至少一个传输载频对应的索引号。例如，至少一个第二传输载频为第1-第8的八个传输载频，则可以用索引号1-8作为第一指示信息来标识这八个传输载频。
(2)第一指示信息为包含至少一个比特位的比特串，至少一个比特位与至少一个第二传输载频一一对应，每个比特位携带的信息用于指示第一终端设备是否采用比特位对应的第二传输载频发送第二直连链路数据，可选的，可以用比特位上中填充的数字0表示第一终端设备不采用与该比特位对应的第二传输载频传输直连链路数据，用数字1表示第一终端设备采用与该比特位对应的第二传输载频传输直连链路数据；至少一个比特位与至少一个第二传输载频的对应关系为预配置的，或至少一个比特位与至少一个第二传输载频的对应关系为网络配置的，或至少一个比特位与至少一个第二传输载频的对应关系为协议规范的。
其中，在本发明各实施例中，预配置可以指：携带在专门的配置信令中的配置，且该配置可以刷新、更改；协议规范可以指：通信协议规定的标准，且该标准无法刷新、更改。
例如，存在第1-第8的八个第二传输载频，且这八个第二传输载频与第一指示信息中的八个比特位一一对应，第1个第二传输载频对应八个比特位的低1位，第2个第二传输载频对应八个比特位的低2位，以此类推，第8个第二传输载频对应八个比特位的高8位，即第k比特对应第k个传输载频，当第一终端设备采用第1、第3、第5个第二传输载频发送第二直连链路数据时，第一指示信息可以为00010101，即比特串的第1位、第3位、第5位填充的比特数为1，以指示第一终端设备采用第1、第3、第5个第二传输载频发送第二直连链路数据。
(3)第一指示信息为用于指示第一终端设备是否采用多传输载频发送直连链路数据的信息，而不用指明第一终端设备具体采用哪些传输载频发送直连链路数据。
可选的，该信息可以是1位比特(bit)的指示信息，如：可以用比特数0表示第一终端设备未采用多载频传输直连链路数据，用比特数1表示第一终端设备采用多载频传输直连链路数据。
(4)第一指示信息为使用的传输载频个数值，传输载频个数值用于指示第一终端设备使用的传输载频的个数。例如，第一指示信息指示第一终端使用K个传输载频，则代表第一终端根据传输优先级使用了前K个传输载频传输。
其中，K为大于等于1的整数，传输载频(包括第二传输载频，也可包括第一传 输载频)以及对应的优先级可以通过预配置、网络配置或者协议规范化的方式获取。载频个数值可以将第一传输载频计算在内，也可以不将第一传输载频计算在内。
方式2：第一直连链路数据以及第一指示信息包含在媒体接入控制协议数据单元(media access control protocol data unit，MAC PDU)中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据以及第一指示信息。
其中，MAC PDU的格式如图5b所示，可以包含MAC头和MAC负载，MAC payload可以包含第一直连链路数据，MAC header可以包含第一指示信息。此外，为了明确MAC PDU的格式、MAC PDU携带的数据的业务类型，图5b所示的MAC PDU还可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址用于指示MAC PDU携带的直连链路数据的业务类型。
可选的，第一指示信息可以占用MAC头的固定比特位，成为MAC头的固定组成部分，当MAC PDU的版本标识为固定值时，该第一指示信息必须每次携带在MAC PDU中发送给第二终端设备，即当第一终端设备确定采用至少一个传输载频发送直连链路数据时，第一终端设备将第一指示信息携带在MAC头的固定比特位向第二终端设备发送，当第一终端设备未确定采用至少一个传输载频发送直连链路数据时，第一终端设备将用于携带第一指示信息的固定比特位填充为0或其他信息，表明第一终端设备不进行多载频传输。
可选的，第一指示信息可以在MAC头中的专用MAC控制单元(control element，CE)携带，该MAC CE可以采用专用的逻辑信道标识标识。
需要说明的是，图5b仅为MAC PDU的示例图，除图5b所示内容之外，MAC PDU还可以包含其他内容，本发明实施例对此不进行限定。
其中，方式2中的第一指示信息可参照方式1中的第一指示信息，在此不再赘述。
方式3：如图5c所示，第一指示信息包含在与第一直连链路数据对应的SA数据中，第一直连链路数据包含在MAC PDU中，第一终端设备通过在第一传输载频上发送MAC PDU向第二终端设备发送第一直连链路数据、以及通过在第一传输载频上发送SA数据向第二终端设备发送第一指示信息。
其中，SA数据可以包含与第一直连链路数据传输相关的控制信息，如：时频资源位置、调整编码方式、业务优先级、传输间隔周期等。
其中，MAC PDU可以包含MAC头和MAC负载，MAC负载可以包含第一直连链路数据，MAC头可以包含版本标识、源地址和目的地址，其中，版本标识用于标识MAC PDU的格式，源地址和目的地址用于指示MAC PDU携带的直连链路数据的业务类型。
需要说明的是，图5c仅为MAC PDU的示例图，除图5c所示内容之外，SA数据还可以包含其他内容，MAC PDU还可以包含其他内容，本发明实施例对此不进行限定。
其中，方式3中的第一指示信息可参照方式1中的第一指示信息，在此不再赘述。
需要说明的是，在本发明各实施例中，传输和接收为相对概念，传输载频可替换为接收载频，即第一终端设备采用的传输载频对于第二终端设备而言为接收载频，因此，对于接收端(即第二终端设备)而言，第二终端设备接收到的是用于指示第一终 端设备在至少一个第二接收载频上发送第二直连链路数据的一些指示信息，即从第二终端设备的角度来看，第二终端设备可以采用上述方式1-方式3接收第一指示信息，该第一指示信息可以包含以下内容：
(1)第一指示信息包含至少一个第二接收载频的频点信息，该频段信息用于标识至少一个第二接收载频，如：可以为至少一个第二接收载频的载频标识、或者至少一个接收载频对应的索引号。例如，至少一个第二接收载频为第1-第8的八个接收载频，则可以用索引号1-8作为第一指示信息来标识这八个接收载频。
(2)第一指示信息为包含至少一个比特位的比特串，至少一个比特位与至少一个第二接收载频一一对应，每个比特位携带的信息用于指示第一终端设备是否采用比特位对应的第二接收载频发送第二直连链路数据，至少一个比特位与至少一个第二接收载频的对应关系为预配置的，或至少一个比特位与至少一个第二接收载频的对应关系为网络配置的，或至少一个比特位与至少一个第二接收载频的对应关系为协议规范的。
可选的，可以用比特位上中填充的数字0表示第一终端设备不采用与该比特位对应的第二接收载频发送直连链路数据，用数字1表示第一终端设备采用与该比特位对应的第二接收载频发送直连链路数据；
例如，存在第1-第8的八个第二接收载频，且这八个第二接收载频与第一指示信息中的八个比特位一一对应，第1个第二接收载频对应八个比特位的低1位，第2个第二接收载频对应八个比特位的低2位，以此类推，第8个第二接收载频对应八个比特位的高8位，即第k比特对应第k个接收载频，当第一终端设备采用第1、第3、第5个第二接收载频发送第二直连链路数据时，第一指示信息可以为00010101，即比特串的第1位、第3位、第5位填充的比特数为1，以指示第二终端设备采用第1、第3、第5个第二接收载频接收第二直连链路数据。
(3)第一指示信息为用于指示第一终端设备是否采用多接收载频发送直连链路数据的信息，而不用指明第一终端设备具体采用哪些接收载频发送直连链路数据。
可选的，该信息可以是1位比特(bit)的指示信息，如：可以用比特数0表示第二终端设备不采用多载频接收直连链路数据，用比特数1表示第二终端设备采用多载频接收直连链路数据。
(4)第一指示信息为使用的接收载频个数值，接收载频个数值用于指示第一终端设备使用的接收载频的个数。例如，第一指示信息指示第一终端使用K个接收载频，则代表第一终端根据接收优先级使用了前K个接收载频接收。
其中，K为大于等于1的整数，接收载频(包括第二接收载频，也可包括第一接收载频)以及对应的优先级可以通过预配置、网络配置或者协议规范化的方式获取。载频个数值可以将第一接收载频计算在内，也可以不将第一接收载频计算在内。
示例性的，上述第二终端设备根据第一指示信息在至少一个第二接收载频上接收第二直连链路数据可以包括：
当第一指示信息为上述(1)中所述的信息时，第二终端设备根据第一指示信息包含的频点信息，识别出频点信息标识的至少一个第二接收载频，在至少一个第二接收载频上接收第二直连链路数据。
或者，当第一指示信息为上述(2)中所述的信息时，第二终端设备根据比特串中 比特位与传输载频的映射关系、以及比特串中每个比特位的数值确定第一终端设备发送第二直连链路数据采用的第二接收载频。
例如，第k比特对应第k个传输载频，当第二终端设备接收到的第一指示信息为00010101时，确定第一终端设备采用第1、第3、第5个第二接收载频发送第二直连链路数据。
或者，当第一指示信息为上述(3)中所述的信息时，第二终端设备通过预配置或网络配置的方式获取直连链路数据对应的接收载频列表，当第二终端设备接收到第一指示信息后，第二终端设备在该接收载频列表指示的多个接收载频上搜索直连链路数据，当发现第二接收载频上有相应直连链路数据后，监听第二接收载频接收第二直连链路数据。
其中，上述接收载频列表包含：至少一个接收载频，可选的，第二终端设备可以通过RRC信令或者系统消息从接入网设备获取到接收载频列表。
例如，第二终端设备预先从接入网获取了直连链路数据对应的接收载频列表包含的接收载频为载频1、载频2、载频3，第一终端设备当前在载频1上发送直连链路数据，当第一终端设备确定增加载频2发送直连链路数据时，其在载频1发送的MAC PDU中携带了第一指示信息，第二终端设备接收到第一指示信息后，根据接收载频列表开始在载频1、载频2、载频3上接收直连链路数据，最终发现载频1、载频2上有相应的直连链路数据，则后续持续监听载频1、载频2来接收直连链路数据。
可选的，在图5所示方案中，为了表明第一传输载频发送的第一直连链路数据的业务类型、以及第二传输载频上发送的第二直连链路数据的业务类型，第一直连链路数据所在的MAC PDU可以包括第一业务标识信息，第二直连链路数据所在的MAC PDU可以包括第二业务标识信息。
其中，第一业务标识信息用于标识第一直连链路数据的业务类型，第二业务标识信息用于标识第二直连链路数据的业务类型，第一业务标识信息与第二业务标识信息可以相同，即表示这两个直连链路数据为同类型的直连链路数据。第一业务标识信息和第二业务标识信息可以包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
相应的，第二终端设备在第二传输载频上接收第二直连链路数据还可以包括：
第二终端设备根据第二业务标识信息识别出第二直连链路数据的业务类型，若第二直连链路数据的业务类型为自身感兴趣的业务类型，则在第二传输载频上接收第二直连链路数据，否则放弃接收第二直连链路数据。
具体的，第二终端设备如何调整自身接收链接收某种指定类型业务的方法，本发明不做限制。示例性的，第二终端设备还可以对感兴趣的业务进行优先级排序，根据业务优先级顺序接收直连链路数据。例如，对业务类型为1的直连链路数据的兴趣要大于业务类型为2的直连链路数据，假设业务类型为1的直连链路数据在载频1和载频2上发送，业务类型为2的直连链路数据在载频3上发送，当第二终端设备只能接收两个载频上的直连链路数据时，当第二终端设备获得业务类型为1的直连链路数据对应的第一指示信息后，即根据第一指示信息获知业务类型为1的直连链路数据在多个载频发送时，第二终端设备根据业务优先级顺序以及自身的接收能力放弃接收业务 类型为2的直连链路数据，而在载频1和载频2上接收业务类型为1的直连链路数据。
可选的，为了第一终端设备采用合适的传输载频发送直连链路数据，图5所示技术方案还可以包括；
第一终端设备获取第一载频配置信息，其中，第一载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，第一传输载频标识用于标识第一传输载频，至少一个第二传输载频标识用于标识至少一个第二传输载频，第一传输载频的传输优先级高于至少一个第二传输载频中的任一第二传输载频；
相应的，第一终端设备根据第一载频配置信息，采用传输优先级最高的第一传输载频发送第一直连链路数据；当第一终端设备确定采用除第一传输载频之外的其他传输载频发送第二直连链路数据时，第一终端设备根据第一载频配置信息采用传输优先级低于第一传输载频的第二传输载频发送第二直连链路数据。
其中，第一终端设备可以从接入网设备获取第一载频配置信息，该第一载频配置信息可以包含在RRC专用信令或者系统消息中，即第一终端设备可以通过接入网设备发送的RRC专用信令或者系统消息获取到第一载频配置信息。
上述第一载频配置信息用于第一终端设备根据该第一载频配置信息确定发送直连链路数据时采用的传输载频。上述传输载频信息中的各载频标识可以为传输载频的频点，还可以为传输载频的索引号。
具体的，上述第一载频配置信息可以为下述(a)(b)(c)(d)中的任一种信息：
(a)上述第一载频配置信息中的传输载频标识可以按照传输载频的传输优先级从高到低的顺序排列，当第一终端设备获取到第一载频配置信息后，确定采用排在最前面的传输载频标识对应的传输载频来发送第一直连链路数据和第一指示信息。
例如，第1-第8八个传输载频对应的传输标识为1-8，且这八个传输载频的传输优先级从第1个到第8个依次降低，则第一载频配置信息中传输载频标识的排序为12345678。
(b)上述第一载频配置信息中的传输载频标识还可以按照传输载频的传输优先级从低到高的顺序排列，当第一终端设备获取到第一载频配置信息后，确定采用排在最后面的传输载频标识对应的传输载频来发送第一直连链路数据和第一指示信息。
例如，第1-第8八个传输载频对应的传输标识为1-8，且这八个传输载频的传输优先级从第1个到第8个依次降低，则第一载频配置信息中传输载频标识的排序为87654321。
(c)上述第一载频配置信息中还可以包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，第一传输优先级标识与第一传输载频标识对应，至少一个第二传输优先级标识与至少一个第二传输载频标识一一对应，第一传输优先级标识对应的传输优先级高于至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级，各个传输优先级标识用于标识该传输优先级标识对应的传输载频标识所标识的传输载频的优先级；
当第一终端设备获取到第一载频配置信息后，确定第一传输优先级标识对应的传输载频标识所标识的传输载频来发送第一直连链路数据和第一指示信息。
其中，传输优先级可以为数字、或者字母、或者其他标识符，如：用数字1或者字母A标识最高优先级。例如，第1-第8八个传输载频对应的传输标识为1-8，且这八个传输载频的传输优先级从第1个到第8个依次降低，则第一载频配置信息中设置从A-H八个传输优先级标识，A-H八个传输优先级标识所标识的传输优先级按照从A-H的顺序依次降低，字母A对应传输载频标识1，字母B对应传输载频标识2，字母C对应传输载频标识3，字母D对应传输载频标识4，字母E对应传输载频标识5，字母F对应传输载频标识6，字母G对应传输载频标识7，字母H对应传输载频标识8。
(d)上述第一载频配置信息中还可以包括第三业务标识信息和至少一个第四业务标识信息，其中，至少一个第四业务标识信息与至少一个第二传输载频标识一一对应；第三业务标识用于指示第一传输载频标识所标识的传输载频上发送的直连链路数据的业务类型，每个第四业务标识信息用于指示第四业务标识信息对应的第二传输载频标识所标识的传输载频上发送的直连链路数据的业务类型。
当第一终端设备获取到第一载频配置信息后，将第三业务标识携带在传输优先级最高的第一传输载频发送的直连链路数据所在的MAC PDU中，将第四业务标识携带在传输优先级次高的第二传输载频发送的直连链路数据所在的MAC PDU中，即上述第一业务标识信息可以为第三业务标识信息，第二业务标识信息可以为第四业务标识信息。
其中，至少一个第四业务标识信息中的任一业务标识信息和第三业务标识信息可以相同，也可以不相同，第三业务标识信息和第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，第一终端设备可以在获取到第一载频配置信息后，依照第一载频配置信息采用合适的传输载频传输直连链路数据，如：重要的信息(如第一指示信息)采用优先级最高的第一传输载频进行传输，以便第二终端设备很好地接收到第一指示信息，提高数据传输性能。
可选的，为了便于第二终端设备采用合适的接收载频接收直连链路数据，图5所述方案还可以包括：
第二终端设备获取第二载频配置信息，其中，第二载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，第一接收载频标识用于标识第一接收载频，至少一个第二接收载频标识用于标识至少一个第二接收载频，第一接收载频的接收优先级高于至少一个第二接收载频中的任一第二接收载频；
相应的，第二终端设备根据第二载频配置信息，采用接收优先级最高的第一接收载频上接收第一直连链路数据以及第一指示信息，当第二终端设备接收到第一指示信息后，第二终端设备根据第二载频配置信息采用接收优先级低于第一接收载频的至少一个第二接收载频接收第二直连链路数据。
其中，上述第二载频配置信息用于第二终端设备根据该第二载频配置信息确定接收直连链路数据的载频，第二终端设备可以从接入网设备获取第二载频配置信息，该第二载频配置信息可以包含在RRC专用信令或者系统消息中，即第二终端设备可以通 过接入网设备发送的RRC专用信令或者系统消息获取到第二载频配置信息。
具体的，上述第二载频配置信息可以参照接入网设备发送给第一终端设备的第二载频配置信息，为下述任一种信息：
上述第二载频配置信息中的接收载频标识可以按照接收载频的接收优先级从高到低的顺序排列，当第二终端设备获取到第二载频配置信息后，确定采用排在最前面的接收载频标识对应的接收载频来发送第一直连链路数据和第一指示信息。
例如，第1-第8八个接收载频对应的接收标识为1-8，且这八个接收载频的接收优先级从第1个到第8个依次降低，则第二载频配置信息中接收载频标识的排序为12345678。
或者，上述第二载频配置信息中的接收载频标识还可以按照接收载频的接收优先级从低到高的顺序排列，当第二终端设备获取到第二载频配置信息后，确定采用排在最后面的接收载频标识对应的接收载频来发送第一直连链路数据和第一指示信息。
例如，第1-第8八个接收载频对应的接收标识为1-8，且这八个接收载频的接收优先级从第1个到第8个依次降低，则第二载频配置信息中接收载频标识的排序为87654321。
或者，上述第二载频配置信息中还可以包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，第一接收优先级标识与第一接收载频标识对应，至少一个第二接收优先级标识与至少一个第二接收载频标识一一对应，第一接收优先级标识对应的接收优先级高于至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级，各个接收优先级标识用于标识该接收优先级标识对应的接收载频标识所标识的接收载频的优先级；
当第二终端设备获取到第二载频配置信息后，确定第一接收优先级标识对应的接收载频标识所标识的接收载频来发送第一直连链路数据和第一指示信息。
其中，接收优先级可以为数字、或者字母、或者其他标识符，如：用数字1或者字母A标识最高优先级。例如，第1-第8八个接收载频对应的接收标识为1-8，且这八个接收载频的接收优先级从第1个到第8个依次降低，则第二载频配置信息中设置从A-H八个接收优先级标识，A-H八个接收优先级标识所标识的接收优先级按照从A-H的顺序依次降低，字母A对应接收载频标识1，字母B对应接收载频标识2，字母C对应接收载频标识3，字母D对应接收载频标识4，字母E对应接收载频标识5，字母F对应接收载频标识6，字母G对应接收载频标识7，字母H对应接收载频标识8。
或者，上述第二载频配置信息中还可以包括第三业务标识信息和至少一个第四业务标识信息，其中，至少一个第四业务标识信息与至少一个第二接收载频标识一一对应；第三业务标识用于指示第一接收载频标识所标识的接收载频上接收的直连链路数据的业务类型，每个第四业务标识信息用于指示第四业务标识信息对应的第二接收载频标识所标识的接收载频上接收的直连链路数据的业务类型。
当第二终端设备获取到第二载频配置信息后，将第三业务标识携带在接收优先级最高的第一接收载频发送的直连链路数据所在的MAC PDU中，将第四业务标识携带在接收优先级次高的第二接收载频发送的直连链路数据所在的MAC PDU中，即上述 第一业务标识信息可以为第三业务标识信息，第二业务标识信息可以为第四业务标识信息。
其中，至少一个第四业务标识信息中的任一业务标识信息和第三业务标识信息可以相同，也可以不相同，第三业务标识信息和第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
如此，第二终端设备可以在获取到第二载频配置信息后，依照第二载频配置信息采用合适的接收载频接收直连链路数据，如：重要的信息(如第一指示信息)采用优先级最高的第一接收载频进行接收，以便第二终端设备很好地接收到第一指示信息，提高数据接收性能。
可选的，为了便于第二终端设备解调接收到的第二直连链路数据，图5所示方案还可以包括：
第一终端设备向第二终端设备发送第二直连链路数据对应的SA数据，其中，第二直连链路数据对应的SA数据可以用于指明与第二直连链路数据传输相关的控制信息(如时频资源位置、调整编码方式、业务优先级、传输时间间隔等)，以便第二终端设备接收到该SA数据时，根据该SA数据指示的控制信息接收第二直连链路数据。
可选的，图5所示方案还可以包括：
第二终端设备从第一终端设备接收第二直连链路数据对应的SA数据；
第二终端设备根据该SA数据，对从至少一个第二传输载频上接收到的第二直连链路数据进行处理。
其中，第二终端设备根据SA数据对直连链路数据进行处理的过程可参照现有技术，在此不再赘述。
具体的，上述可选步骤可以参见图6中的相关描述，不再赘述。
如图6所示，为本发明实施例提供的又一种多载频传输方法，该方法可以包括：
步骤601：接入网设备向第一终端设备发送第一载频配置信息，向第二终端设备发送第二载频配置信息。
其中，第一载频配置信息为本发明实施例中第一终端设备获取的载频配置信息，第二载频配置信息为本发明实施例中第二终端设备获取的载频配置信息，第一载频配置信息、第二载频配置信息如图5所示方案中的第一载频配置信息、第二载频配置信息相同，在此不再赘述。
示例性的，接入网设备可以通过RRC专用信令或者系统消息向第一终端设备、第二终端设备发送载频配置信息。
需要说明的是，接入网设备可以同时向第一终端设备、第二终端设备发送载频配置信息，也可以先后向第一终端设备、第二终端设备发送载频配置信息，本发明实施例对此不进行限定。
步骤602：第一终端设备从接入网设备接收第一载频配置信息，第二终端设备从接入网设备接收第二载频配置信息。
示例性的，第一终端设备、第二终端设备可以通过RRC专用信令或者系统消息接收第一载频配置信息、第二载频配置信息。
需要说明的是，第一终端设备和第二终端设备可以同时接收载频配置信息，也可以先后接收载频配置信息，本发明实施例对此不进行限定。
步骤603：第一终端设备获取第一直连链路数据。
其中，步骤603可参照步骤501执行，在此不再赘述。
步骤604：第一终端设备根据第一载频配置信息，在第一传输载频向第二终端设备发送第一直连链路数据和第一指示信息。
示例性的，第一终端设备根据第一载频配置信息，在第一传输载频向第二终端设备发送第一直连链路数据和第一指示信息可以包括：
第一终端设备根据第一载频配置信息，确定出传输优先级最高的第一传输载频，在第一传输载频向第二终端设备发送第一直连链路数据和第一指示信息。
具体的，第一终端设备如何根据第一载频配置信息确定出传输优先级最高的第一传输载频可参照图5所示方案，在此不再赘述。
步骤605：第二终端设备根据第二载频配置信息从第一传输载频接收第一直连链路数据和第一指示信息，根据第一指示信息在至少一个第二传输载频上接收第二直连链路数据。
其中，步骤605可参照步骤503执行，在不不再赘述。
需要说明的是，图6所示方案中，步骤601、步骤602、步骤603可以不限于图6所示的执行顺序，可选的，步骤601和步骤602也可以在步骤603之后执行，本发明实施例对此不进行限定。
上述主要从各个节点之间交互的角度对本发明实施例提供的方案进行了介绍。可以理解的是，各个节点，例如第一终端设备、第二终端设备、接入网设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
本发明实施例可以根据上述方法示例对第一终端设备、第二终端设备、接入网设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本发明实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图7示出了第一终端设备的一种可能的组成示意图，该第一终端设备可以用于执行上述实施例中涉及的第一终端设备的功能。如图7所示，该第一终端设备可以包括：获取单元70、发送单元71；
其中，获取单元70，用于支持第一终端设备执行图5所示步骤501、图6中的步骤602、603。
发送单元71，用于支持第一终端设备执行图5中的步骤502，图6中的步骤604。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应 功能模块的功能描述，在此不再赘述。本发明实施例提供的第一终端设备，用于执行上述多载频传输方法，因此可以达到与上述多载频传输方法相同的效果。
在采用集成的单元的情况下，图8示出了一种装置，该装置以芯片的产品形态存在，用于执行上述实施例中第一终端设备的功能，如图8所示，该装置可以包括：处理模块80和通信模块81。
处理模块80用于对装置的动作进行控制管理，例如，处理模块80用于支持该装置执行图5中的步骤501、图6中的步骤603、和/或用于本文所描述的技术的其它过程。通信模块81用于支持装置与其他网络实体的通信，例如与图2示出的功能模块或网络实体之间的通信。装置还可以包括存储模块82，用于存储装置的程序代码和数据。
其中，处理模块80可以是处理器或控制器。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块81可以是收发器、或者收发电路等。存储模块82可以是存储器。
当处理模块80为处理器，通信模块81为收发器，存储模块82为存储器时，本发明实施例所涉及的装置可以为图3所示的装置。
在采用对应各个功能划分各个功能模块的情况下，图9示出了第二终端设备的一种可能的组成示意图，该第二终端设备可以用于执行上述实施例中涉及的第二终端设备的功能。如图9所示，该第二终端设备可以包括：接收单元90、获取单元91；
其中，接收单元90，用于支持第二终端设备执行图5所示步骤503，图6所示步骤605。
获取单元91，用于支持第二终端设备执行图6中的步骤602。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。本发明实施例提供的第二终端设备，用于执行上述多载频传输方法，因此可以达到与上述多载频传输方法相同的效果。
在采用集成的单元的情况下，图10示出了一种装置，该装置以芯片的产品形态存在，该装置用于执行上述实施例中第二终端设备的功能。如图10所示，该装置可以包括：处理模块100和通信模块101。
处理模块100用于对装置的动作进行控制管理，例如，处理模块100用于支持装置执行图6中的步骤602和/或用于本文所描述的技术的其它过程。通信模块101用于支持装置与其他网络实体的通信，例如与图2示出的功能模块或网络实体之间的通信。装置还可以包括存储模块102，用于存储装置的程序代码和数据。
其中，处理模块100可以是处理器或控制器。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块101可以是收发器、或者收发电路等。存储模块102可以是存储器。
当处理模块100为处理器，通信模块101为收发器，存储模块102为存储器时，本发明实施例所涉及的装置可以为图3所示的装置。
在采用对应各个功能划分各个功能模块的情况下，图11示出了接入网设备的一种可能的组成示意图，如图11所示，该接入网设备可以包括：生成单元110、发送单元 111；
其中，生成单元110用于支持接入网设备生成载频配置信息；
发送单元111，用于支持接入网设备执行图6所示步骤601。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。本发明实施例提供的接入网设备，用于执行上述多载频传输方法，因此可以达到与上述多载频传输方法相同的效果。
在采用集成的单元的情况下，图12示出了一种装置，该装置以芯片的产品形态存在，该装置用于执行上述实施例中接入网设备的功能。如图12所示，该装置可以包括：处理模块120和通信模块121。
处理模块120用于对装置的动作进行控制管理，例如，处理模块120用于支持该装置执行获取载频配置信息的功能。通信模块121用于支持该装置与其他网络实体的通信，例如与图2示出的功能模块或网络实体之间的通信。该装置还可以包括存储模块122，用于存储该装置的程序代码和数据。
其中，处理模块120可以是处理器或控制器。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块121可以是收发器、收发电路或通信接口等。存储模块122可以是存储器。
当处理模块120为处理器，通信模块121为通信接口，存储模块122为存储器时，本发明实施例所涉及的装置可以为图4所示的装置。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的 形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何在本发明揭露的技术范围内的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (54)

  1. 一种多载频传输方法，其特征在于，所述方法包括：
    第一终端设备获取第一直连链路数据；
    所述第一终端设备在第一传输载频上向第二终端设备发送所述第一直连链路数据以及第一指示信息，其中，所述第一指示信息用于指示所述第一终端设备采用至少一个第二传输载频发送第二直连链路数据。
  2. 根据权利要求1所述的多载频传输方法，其特征在于，所述第一终端设备在第一传输载频上向第二终端设备发送所述第一直连数据以及第一指示信息，包括：
    所述第一直连链路数据以及所述第一指示信息包含在媒体接入控制协议数据单元MAC PDU中，所述第一终端设备通过在所述第一传输载频上发送所述MAC PDU向所述第二终端设备发送所述第一直连链路数据以及所述第一指示信息；或者，
    所述第一指示信息包含在与所述第一直连链路数据对应的调度分配SA数据中，所述第一直连链路数据包含在MAC PDU中，所述第一终端设备通过在所述第一传输载频上发送所述MAC PDU向所述第二终端设备发送所述第一直连链路数据、以及通过在所述第一传输载频上发送所述SA数据向所述第二终端设备发送所述第一指示信息。
  3. 根据权利要求1或2所述的多载频传输方法，其特征在于，
    所述第一指示信息为比特串；
    其中，所述比特串包含至少一个比特位，所述至少一个比特位与所述至少一个第二传输载频一一对应，所述至少一个比特位与所述至少一个第二传输载频的对应关系为预配置的，或所述至少一个比特位与所述至少一个第二传输载频的对应关系为网络配置的，或所述至少一个比特位与所述至少一个第二传输载频的对应关系为协议规范的；
    每个所述比特位携带的信息用于指示所述第一终端设备是否采用所述比特位对应的第二传输载频发送所述第二直连链路数据。
  4. 根据权利要求1或2所述的多载频传输方法，其特征在于，
    所述第一指示信息包括频点信息；
    其中，所述频点信息为所述至少一个第二传输载频的载频标识或者所述至少一个传输载频对应的索引号，所述频点信息用于标识所述至少一个第二传输载频。
  5. 根据权利要求1-4任一项所述的多载频传输方法，其特征在于，
    所述第一直连链路数据所在的MAC PDU包括第一业务标识信息，所述第二直连链路数据所在的MAC PDU包括第二业务标识信息；
    其中，所述第一业务标识信息与所述第二业务标识信息相同，所述第一业务标识信息和所述第二业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  6. 根据权利要求1-5任一项所述的多载频传输方法，其特征在于，所述方法还包括：
    所述第一终端设备获取载频配置信息，其中，所述载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，所述第一传输载频标识用于标识所述第一传输 载频，所述至少一个第二传输载频标识用于标识所述至少一个第二传输载频，所述第一传输载频的传输优先级高于所述至少一个第二传输载频中的任一第二传输载频。
  7. 根据权利要求6所述的多载频传输方法，其特征在于，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，所述第一传输优先级标识与所述第一传输载频标识对应，所述至少一个第二传输优先级标识与所述至少一个第二传输载频标识一一对应，所述第一传输优先级标识对应的传输优先级高于所述至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级。
  8. 根据权利要求6或7所述的多载频传输方法，其特征在于，所述载频配置信息还包括第三业务标识信息和至少一个第四业务标识信息，所述至少一个第四业务标识信息与所述至少一个第二传输载频标识一一对应；所述第三业务标识用于指示所述第一传输载频标识所标识的传输载频上发送的直连链路数据的业务类型，每个所述第四业务标识信息用于指示所述第四业务标识信息对应的第二传输载频标识所标识的传输载频上发送的直连链路数据的业务类型；
    其中，所述第三业务标识信息和所述第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
  9. 根据权利要求8所述的多载频传输方法，其特征在于，
    所述至少一个第四业务标识信息中的任一业务标识信息和所述第三业务标识信息相同。
  10. 根据权利要求6-9任一项所述的多载频传输方法，其特征在于，所述方法还包括：
    所述第一终端设备根据所述载频配置信息，采用传输优先级最高的所述第一传输载频发送所述第一直连链路数据；
    当所述第一终端设备确定采用除所述第一传输载频之外的其他传输载频发送所述第二直连链路数据时，所述第一终端设备根据所述载频配置信息采用传输优先级低于所述第一传输载频的第二传输载频发送所述第二直连链路数据。
  11. 一种多载频传输方法，其特征在于，包括：
    第二终端设备在第一接收载频上接收第一终端设备发送的第一直连链路数据以及第一指示信息，其中，所述第一指示信息用于指示所述第一终端设备在至少一个第二接收载频上发送第二直连链路数据；
    所述第二终端设备根据第一指示信息在所述至少一个第二接收载频上接收所述第二直连链路数据。
  12. 根据权利要求11所述的多载频传输方法，其特征在于，所述第二终端设备在所述第一接收载频上接收第一终端设备发送的第一直连链路数据以及第一指示信息， 包括：
    所述第一直连链路数据以及所述第一指示信息包含在媒体接入控制协议数据单元MAC PDU中，所述第二终端设备通过在所述第一接收载频上接收所述MAC PDU来接收所述第一直连链路数据以及所述第一指示信息；或者，
    所述第一指示信息包含在与所述第一直连链路数据对应的调度分配SA数据中，所述第一直连链路数据包含在MAC PDU中，所述第二终端设备通过在所述第一接收载频上接收所述MAC PDU来接收所述第一直连链路数据、以及通过在所述第一接收载频上接收所述SA数据来接收所述第一指示信息。
  13. 根据权利要求11或12所述的多载频传输方法，其特征在于，
    所述第一指示信息为比特串；
    其中，所述比特串包含至少一个比特位，所述至少一个比特位与所述至少一个第二接收载频一一对应，所述至少一个比特位与所述至少一个第二接收载频的对应关系为预配置的，或所述至少一个比特位与所述至少一个第二接收载频的对应关系为网络配置的，或所述至少一个比特位与所述至少一个第二接收载频的对应关系为协议规范的；
    每个所述比特位携带的信息用于指示所述第一终端设备是否采用所述比特位对应的第二接收载频发送所述第二直连链路数据。
  14. 根据权利要求11或12所述的多载频传输方法，其特征在于，
    所述第一指示信息包括频点信息；
    其中，所述频点信息为所述至少一个第二接收载频的载频标识或者所述至少一个接收载频对应的索引号，所述频点信息用于标识所述至少一个第二接收载频。
  15. 根据权利要求11-14任一项所述的多载频传输方法，其特征在于，
    所述第一直连链路数据所在的MAC PDU包含第一业务标识信息，所述第二直连链路数据所在的MAC PDU包含第二业务标识信息；
    其中，所述第一业务标识信息和所述第二业务标识信息相同，所述第一业务标识信息和所述第二业务标识信息包括以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  16. 根据权利要求11-14任一项所述的多载频传输方法，其特征在于，所述方法还包括：
    所述第二终端设备获取载频配置信息，其中，所述载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，所述第一接收载频标识用于标识第一接收载频，所述至少一个第二接收载频标识用于标识所述至少一个第二接收载频，所述第一接收载频的接收优先级高于所述至少一个第二接收载频中的任一第二接收载频。
  17. 根据权利要求16所述的多载频传输方法，其特征在于，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识， 其中，所述第一接收优先级标识与所述第一接收载频标识对应，所述至少一个第二接收优先级标识与所述至少一个第二接收载频标识一一对应，所述第一接收优先级标识对应的接收优先级高于所述至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
  18. 根据权利要求16或17所述的多载频传输方法，其特征在于，
    所述载频配置信息还包括第三业务标识信息和至少一个第四业务标识信息，所述至少一个第四业务标识信息与所述至少一个接收载频标识一一对应；所述第三业务标识信息用于指示所述第一接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型，每个所述第四业务标识信息用于指示所述第四业务标识信息对应的第二接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型；
    其中，所述第三业务标识信息和所述第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  19. 根据权利要求18所述的多载频传输方法，其特征在于，
    所述至少一个第四业务标识信息中的任一业务标识信息和所述第三业务标识信息相同。
  20. 根据权利要求16-19任一项所述的多载频传输方法，其特征在于，所述方法还包括：
    所述第二终端设备根据所述载频配置信息，采用接收优先级最高的所述第一接收载频上接收所述第一直连链路数据以及所述第一指示信息；
    当所述第二终端设备接收到所述第一指示信息后，所述第二终端设备根据所述载频配置信息以及所述第一指示信息采用接收优先级低于所述第一接收载频的所述至少一个第二接收载频接收所述第二直连链路数据。
  21. 一种多载频传输方法，其特征在于，包括：
    接入网设备生成载频配置信息；
    所述接入网设备向终端设备发送所述载频配置信息，其中，所述载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，所述第一传输载频标识用于标识第一传输载频，所述至少一个第二传输载频标识用于标识所述至少一个第二传输载频，所述第一传输载频的接收优先级高于所述至少一个第二传输载频中的任一第二传输载频。
  22. 根据权利要求21所述的多载频传输方法，其特征在于，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，所述第一传输优先级标识与所述第一传输载频标识对应，所述至少一个第二传输优先级标识与所述至少一个第二传输载频标识一一对应，所述第一传输优先级标识对应的传输优先级高于所述至少一个第二传输优先级标识中任一第二传输优先级标识 对应的传输优先级。
  23. 一种多载频传输方法，其特征在于，包括：
    接入网设备生成载频配置信息；
    所述接入网设备向终端设备发送所述载频配置信息，其中，所述载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，所述第一接收载频标识用于标识第一接收载频，所述至少一个第二接收载频标识用于标识所述至少一个第二接收载频，所述第一接收载频的接收优先级高于所述至少一个第二接收载频中的任一第二接收载频。
  24. 根据权利要求23所述的多载频传输方法，其特征在于，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，所述第一接收优先级标识与所述第一接收载频标识对应，所述至少一个第二接收优先级标识与所述至少一个第二接收载频标识一一对应，所述第一接收优先级标识对应的接收优先级高于所述至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
  25. 一种第一终端设备，其特征在于，所述方法包括：
    获取单元，用于获取第一直连链路数据；
    发送单元，用于在第一传输载频上向第二终端设备发送所述获取单元获取到的第一直连链路数据以及第一指示信息，其中，所述第一指示信息用于指示所述第一终端设备采用至少一个第二传输载频发送第二直连链路数据。
  26. 根据权利要求25所述的第一终端设备，其特征在于，
    所述第一直连链路数据以及所述第一指示信息包含在媒体接入控制协议数据单元MAC PDU中，所述发送单元，具体用于通过在所述第一传输载频上发送所述MAC PDU向第二终端设备发送所述第一直连链路数据以及所述第一指示信息；或者，
    所述第一指示信息包含在与所述第一直连链路数据对应的调度分配SA数据中，所述第一直连链路数据包含在MAC PDU中，所述发送单元，具体用于通过在所述第一传输载频上发送所述MAC PDU向所述第二终端设备发送所述第一直连链路数据、以及通过在所述第一传输载频上发送所述SA数据向所述第二终端设备发送所述第一指示信息。
  27. 根据权利要求26所述的第一终端设备，其特征在于，
    所述第一指示信息为比特串；
    其中，所述比特串包含至少一个比特位，所述至少一个比特位与所述至少一个第二传输载频一一对应，所述至少一个比特位与所述至少一个第二传输载频的对应关系为预配置的，或所述至少一个比特位与所述至少一个第二传输载频的对应关系为网络配置的，或所述至少一个比特位与所述至少一个第二传输载频的对应关系为协议规范的；
    每个所述比特位携带的信息用于指示所述第一终端设备是否采用所述比特位对应的第二传输载频发送所述第二直连链路数据。
  28. 根据权利要求26所述的第一终端设备，其特征在于，
    所述第一指示信息包括频点信息；
    其中，所述频点信息为所述至少一个第二传输载频的载频标识或者所述至少一个传输载频对应的索引号，所述频点信息用于标识所述至少一个第二传输载频。
  29. 根据权利要求25-28任一项所述的第一终端设备，其特征在于，
    所述第一直连链路数据所在的MAC PDU包括第一业务标识信息，所述第二直连链路数据所在的MAC PDU包括第二业务标识信息；
    其中，所述第一业务标识信息与所述第二业务标识信息相同，所述第一业务标识信息和所述第二业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  30. 根据权利要求25-29任一项所述的第一终端设备，其特征在于，所述获取单元，还用于：
    获取载频配置信息，其中，所述载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，所述第一传输载频标识用于标识所述第一传输载频，所述至少一个第二传输载频标识用于标识所述至少一个第二传输载频，所述第一传输载频的传输优先级高于所述至少一个第二传输载频中的任一第二传输载频。
  31. 根据权利要求30所述的第一终端设备，其特征在于，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，所述第一传输优先级标识与所述第一传输载频标识对应，所述至少一个第二传输优先级标识与所述至少一个第二传输载频标识一一对应，所述第一传输优先级标识对应的传输优先级高于所述至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级。
  32. 根据权利要求30或31所述的第一终端设备，其特征在于，
    所述载频配置信息还包括第三业务标识信息和至少一个第四业务标识信息，所述至少一个第四业务标识信息与所述至少一个第二传输载频标识一一对应；所述第三业务标识用于指示所述第一传输载频标识所标识的传输载频上发送的直连链路数据的业务类型，每个所述第四业务标识信息用于指示所述第四业务标识信息对应的第二传输载频标识所标识的传输载频上发送的直连链路数据的业务类型；
    其中，所述第三业务标识信息和所述第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识，和流标识。
  33. 根据权利要求32所述的第一终端设备，其特征在于，
    所述至少一个第四业务标识信息中的任一业务标识信息和所述第三业务标识信息 相同。
  34. 根据权利要求30-33任一项所述的第一终端设备，其特征在于，所述发送单元，具体用于：
    根据所述载频配置信息采用传输优先级最高的所述第一传输载频发送所述第一直连链路数据；
    当所述第一终端设备确定采用除所述第一传输载频之外的其他传输载频发送所述第二直连链路数据时，根据所述载频配置信息采用传输优先级低于所述第一传输载频的第二传输载频发送所述第二直连链路数据。
  35. 一种第二终端设备，其特征在于，包括：
    接收单元，用于在第一接收载频上接收第一终端设备发送的第一直连链路数据以及第一指示信息，其中，所述第一指示信息用于指示所述第一终端设备采用至少一个第二接收载频发送第二直连链路数据；
    所述接收单元，还用于在所述至少一个第二接收载频上接收所述第二直连链路数据。
  36. 根据权利要求35所述的第二终端设备，其特征在于，
    所述第一直连链路数据以及所述第一指示信息包含在媒体接入控制协议数据单元MAC PDU中，所述接收单元，具体用于通过在所述第一接收载频上接收所述MAC PDU接收所述第一直连链路数据以及所述第一指示信息；或者，
    所述第一指示信息包含在与所述第一直连链路数据对应的调度分配SA数据中，所述第一直连链路数据包含在MAC PDU中，所述接收单元，具体用于通过在所述第一接收载频上接收所述MAC PDU来接收所述第一直连链路数据、以及通过在所述第一接收载频上接收所述SA数据来接收所述第一指示信息。
  37. 根据权利要求36所述的第二终端设备，其特征在于，
    所述第一指示信息为比特串；
    其中，所述比特串包含至少一个比特位，所述至少一个比特位与所述至少一个第二接收载频一一对应，所述至少一个比特位与所述至少一个第二接收载频的对应关系为预配置的，或所述至少一个比特位与所述至少一个第二接收载频的对应关系为网络配置的，或所述至少一个比特位与所述至少一个第二接收载频的对应关系为协议规范的；
    每个所述比特位携带的信息用于指示所述第一终端设备是否采用所述比特位对应的第二接收载频发送所述第二直连链路数据。
  38. 根据权利要求36所述的第二终端设备，其特征在于，
    所述第一指示信息包括频点信息；
    其中，所述频点信息为所述至少一个第二接收载频的载频标识或者所述至少一个接收载频对应的索引号，所述频点信息用于标识所述至少一个第二接收载频。
  39. 根据权利要求36-38任一项所述的第二终端设备，其特征在于，
    所述第一直连链路数据所在的MAC PDU包含第一业务标识信息，所述第二直连链路数据所在的MAC PDU包含第二业务标识信息；
    其中，所述第一业务标识信息和所述第二业务标识信息相同，所述第一业务标识 信息和所述第二业务标识信息包括以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  40. 根据权利要求35-39任一项所述的第二终端设备，其特征在于，所述第二终端设备还包括：获取单元：
    所述获取单元，用于获取载频配置信息，其中，所述载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，所述第一接收载频标识用于标识第一接收载频，所述至少一个第二接收载频标识用于标识所述至少一个第二接收载频，所述第一接收载频的接收优先级高于所述至少一个第二接收载频中的任一第二接收载频。
  41. 根据权利要求40所述的第二终端设备，其特征在于，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，所述第一接收优先级标识与所述第一接收载频标识对应，所述至少一个第二接收优先级标识与所述至少一个第二接收载频标识一一对应，所述第一接收优先级标识对应的接收优先级高于所述至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
  42. 根据权利要求40或41所述的第二终端设备，其特征在于，
    所述载频配置信息还包括第三业务标识信息和至少一个第四业务标识信息，所述至少一个第四业务标识信息与所述至少一个接收载频标识一一对应；所述第三业务标识信息用于指示所述第一接收载频标识所标识的接收载频上接收到的直连链路数据的业务类型，每个所述第四业务标识信息用于指示所述第四业务标识信息对应的第二接收载频标识所标识的接收载频上接收的直连链路数据的业务类型；
    其中，所述第三业务标识信息和所述第四业务标识信息包含以下至少一种信息：源地址，目标地址，业务类型标识，优先级标识，直连链路承载标识，逻辑信道标识和流标识。
  43. 根据权利要求42所述的第二终端设备，其特征在于，
    所述至少一个第四业务标识信息中的任一业务标识信息和所述第三业务标识信息相同。
  44. 根据权利要求40-43任一项所述的第二终端设备，其特征在于，所述接收单元，具体用于：
    根据所述获取单元获取到的载频配置信息，采用接收优先级最高的所述第一接收载频上接收所述第一直连链路数据以及所述第一指示信息；
    当所述第二终端设备接收到所述第一指示信息后，根据所述第一指示信息以及所述载频配置信息采用接收优先级低于所述第一接收载频的所述至少一个第二接收载频接收所述第二直连链路数据。
  45. 一种接入网设备，其特征在于，包括：
    生成单元，用于生成载频配置信息；
    发送单元，用于向终端设备发送所述生成单元获取到的载频配置信息，其中，所述载频配置信息包括第一传输载频标识和至少一个第二传输载频标识，所述第一传输载频标识用于标识第一传输载频，所述至少一个第二传输载频标识用于标识所述至少一个第二传输载频，所述第一传输载频的接收优先级高于所述至少一个第二传输载频中的任一第二传输载频。
  46. 根据权利要求45所述的接入网设备，其特征在于，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从高到低的顺序排列；或者，
    所述载频配置信息中各传输载频标识按照传输载频的传输优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一传输优先级标识以及至少一个第二传输优先级标识，其中，所述第一传输优先级标识与所述第一传输载频标识对应，所述至少一个第二传输优先级标识与所述至少一个第二传输载频标识一一对应，所述第一传输优先级标识对应的传输优先级高于所述至少一个第二传输优先级标识中任一第二传输优先级标识对应的传输优先级。
  47. 一种接入网设备，其特征在于，包括：
    生成单元，用于生成载频配置信息；
    发送单元，用于向终端设备发送所述生成单元获取到的载频配置信息，其中，所述载频配置信息包括第一接收载频标识和至少一个第二接收载频标识，所述第一接收载频标识用于标识第一接收载频，所述至少一个第二接收载频标识用于标识所述至少一个第二接收载频，所述第一接收载频的接收优先级高于所述至少一个第二接收载频中的任一第二接收载频。
  48. 根据权利要求47所述的接入网设备，其特征在于，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从高到低的顺序排列；或者，
    所述载频配置信息中各接收载频标识按照接收载频的接收优先级从低到高的顺序排列；或者，
    所述载频配置信息还包括第一接收优先级标识以及至少一个第二接收优先级标识，其中，所述第一接收优先级标识与所述第一接收载频标识对应，所述至少一个第二接收优先级标识与所述至少一个第二接收载频标识一一对应，所述第一接收优先级标识对应的接收优先级高于所述至少一个第二接收优先级标识中任一第二接收优先级标识对应的接收优先级。
  49. 一种装置，包括：至少一个处理器，以及存储器；其特征在于，
    所述存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执行时实现如权利要求1-10中任一项所述的多载频传输方法。
  50. 一种计算机存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求1-10中任一项所述的多载频传输方法。
  51. 一种装置，包括：至少一个处理器，以及存储器；其特征在于，
    所述存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执 行时实现如权利要求11-20中任一项所述的多载频传输方法。
  52. 一种计算机存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求11-20中任一项所述的多载频传输方法。
  53. 一种装置，包括：至少一个处理器，以及存储器；其特征在于，
    所述存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执行时实现如权利要求21-24中任一项所述的多载频传输方法。
  54. 一种计算机存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求21-24中任一项所述的多载频传输方法。
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