WO2020151641A1 - 数据传输方法、装置、发送节点及接收节点 - Google Patents

数据传输方法、装置、发送节点及接收节点 Download PDF

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Publication number
WO2020151641A1
WO2020151641A1 PCT/CN2020/073143 CN2020073143W WO2020151641A1 WO 2020151641 A1 WO2020151641 A1 WO 2020151641A1 CN 2020073143 W CN2020073143 W CN 2020073143W WO 2020151641 A1 WO2020151641 A1 WO 2020151641A1
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Prior art keywords
data packet
information
time
time stamp
data
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English (en)
French (fr)
Inventor
张大钧
赵亚利
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present disclosure relates to the field of communication technology, in particular to a data transmission method, device, sending node, and receiving node.
  • the duplication (repetition) mechanism of DRB can be as shown in Figure 1.
  • the duplication transmission mechanism is configured to the terminal UE through the radio resource control RRC message, the UE will Add another radio link layer control protocol RLC entity and logical channel to the current DRB bearer.
  • the packet data convergence protocol PDCP entity carried by the DRB will repeatedly transmit data packets that need to be sent on two links:
  • One link is the original RLC entity, and the other link is the newly added RLC entity.
  • This repeated transmission mechanism can greatly improve the reliability of air interface transmission and shorten the transmission delay.
  • MN represents the primary node
  • SN represents the secondary node
  • MAC represents the media access control
  • FIG. 2 An IAB network architecture in related technologies can be shown in Figure 2.
  • the user plane downlink data packet from Donor-CU will be transmitted to Donor-DU through the F1-U interface in Donor. Then forward it to IAB node1 and IAB node2, and finally reach the UE.
  • the data packet contains GTP-U information and adaptation layer information.
  • SDAP means service data adaptation protocol
  • DU means centralized unit
  • MT means mobile terminal part
  • CU-UP means separation unit-user plane
  • GTP-U means general packet radio service tunnel protocol-data transmission
  • UDP means user datagram Protocol
  • IP Internet protocol
  • Adapt means adaptation layer
  • BH-RLC channel means backhaul RLC logical channel
  • Intra-donor F1-U means F1-U interface in the host node
  • IAB-donor means IAB host node.
  • the transmission performance in related technologies is poor, and there are some problems of wasting wireless resources and difficult to ensure the QOS requirements, which reduces the performance indicators of the 5G network.
  • the purpose of the present disclosure is to provide a data transmission method, device, sending node, and receiving node to solve the problem of poor transmission performance of data transmission schemes in related technologies.
  • embodiments of the present disclosure provide a data transmission method applied to a sending node, including:
  • the data packet carries time stamp information.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • the method before sending the data packet to the receiving node, the method further includes:
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiment of the present disclosure also provides a data transmission method applied to a receiving node, including:
  • the data packet is processed according to the time stamp information.
  • the method before receiving the data packet sent by the sending node, the method further includes:
  • the processing the data packet according to the time stamp information includes:
  • the data packet is processed according to the time stamp information and the quality of service information.
  • the processing the data packet according to the timestamp information and the quality of service information includes:
  • the data packet is discarded.
  • the processing the data packet according to the timestamp information and the quality of service information includes:
  • the data packet is transmitted.
  • the establishment or modification of the terminal context with the sending node to obtain the quality of service information of the data packet includes:
  • the determining the scheduling strategy of the data packet according to the time stamp information and the quality of service information includes:
  • the determining the scheduling policy of the data packet according to the timestamp information, service quality information, and routing information includes:
  • the preset parameter information includes indication information used to indicate the current transmission state of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the processing the data packet according to the timestamp information and the quality of service information includes:
  • the processing operation according to the judgment result includes:
  • the method before judging whether the data transmission of the data packet exceeds the corresponding survival time, the method further includes:
  • the survival time of the data transmission of the data packet is entered, and the scheduling adjustment operation is started.
  • the establishment or modification of the terminal context with the sending node to obtain the quality of service information of the data packet includes:
  • the terminal context is established or modified with the sending node to obtain the service quality information of the data packet and the data transmission lifetime of the data packet.
  • the judging whether the data transmission of the data packet exceeds the corresponding time to live includes:
  • that the data packet is not sent correctly means that the data packet is not sent within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiments of the present disclosure also provide a sending node, including a memory, a processor, a transceiver, and a computer program stored on the memory and running on the processor; the processor executes the program when the program is executed The following steps:
  • the data packet carries time stamp information.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • the processor is further configured to:
  • the receiving node Before sending a data packet to the receiving node, receive the data packet sent by another sending node through the transceiver; wherein the data packet carries the time stamp information, and the time stamp information is the other A sending node sends the sending time information of the data packet; or
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiment of the present disclosure also provides a receiving node, including a memory, a processor, a transceiver, and a computer program stored on the memory and running on the processor; the processor executes the program when the program is executed The following steps:
  • the data packet is processed according to the time stamp information.
  • the processor is further configured to:
  • the processor is specifically used for:
  • the data packet is processed according to the time stamp information and the quality of service information.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the data packet is transmitted.
  • the processor is specifically configured to:
  • the processor is specifically used for:
  • the processor is specifically configured to:
  • the preset parameter information includes indication information used to indicate the current transmission state of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the processor is further configured to:
  • the processor is specifically configured to:
  • the terminal context is established or modified with the sending node to obtain the quality of service information of the data packet and the data transmission lifetime of the data packet.
  • the processor is specifically configured to:
  • that the data packet is not sent correctly means that the data packet is not sent within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the data transmission method on the sending node side are realized; or
  • the embodiment of the present disclosure also provides a data transmission device applied to a sending node, including:
  • the first sending module is used to send data packets to the receiving node
  • the data packet carries time stamp information.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • it also includes:
  • the first receiving module is configured to receive the data packet sent by another sending node before sending the data packet to the receiving node; wherein the data packet carries the time stamp information, and the time stamp information is The sending time information of the data packet sent by the other sending node; or
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiment of the present disclosure also provides a data transmission device applied to a receiving node, including:
  • the second receiving module is configured to receive a data packet sent by the sending node; wherein, the data packet carries time stamp information;
  • the first processing module is configured to process the data packet according to the time stamp information.
  • it also includes:
  • the second processing module is configured to establish or modify the terminal context with the sending node before receiving the data packet sent by the sending node to obtain the quality of service information of the data packet;
  • the first processing module includes:
  • the first processing sub-module is configured to process the data packet according to the time stamp information and service quality information.
  • the first processing submodule includes:
  • the first judging unit is configured to judge whether the data packet meets the delay requirement according to the timestamp information and the service quality information;
  • the first processing unit is configured to discard the data packet if it is not satisfied.
  • the first processing submodule includes:
  • the first determining unit is configured to determine the scheduling strategy of the data packet according to the time stamp information and the quality of service information;
  • the second processing unit is configured to transmit the data packet according to the scheduling policy.
  • the second processing module includes:
  • the second processing sub-module is used to establish or modify the terminal context with the sending node to obtain the quality of service information and routing information of the data packet;
  • the second processing unit includes:
  • the first determining subunit is configured to determine the scheduling strategy of the data packet according to the timestamp information, service quality information, and routing information.
  • the first determining subunit is specifically configured to:
  • the preset parameter information includes indication information used to indicate the current transmission status of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the first processing submodule includes:
  • the second determining unit is configured to determine whether the data packet is sent correctly according to the time stamp information and the quality of service information
  • the second judging unit is configured to judge whether the data transmission of the data packet exceeds the corresponding survival time if it is not sent correctly;
  • the third processing unit is used to perform processing operations according to the judgment result.
  • the third processing unit is specifically configured to:
  • it also includes:
  • the third processing module is used to enter the data transmission of the data packet if the data packet is not sent correctly for the first time on the current service bearer before judging whether the data transmission of the data packet exceeds the corresponding time-to-live Time to live and start scheduling adjustment operations.
  • the second processing module includes:
  • the third processing submodule is configured to establish or modify the terminal context with the sending node to obtain the quality of service information of the data packet and the data transmission lifetime of the data packet.
  • the second judgment unit :
  • the first judging subunit is used to judge whether the data packet has not been sent correctly within a preset period of time after the data packet is not sent correctly for the first time on the current service bearer; or
  • that the data packet is not sent correctly means that the data packet is not sent within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the time stamp information is a time value relative to a preset start time, and a fixed time interval is used as a unit;
  • the preset start time refers to a time point corresponding to the preset reference time
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • the time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in an application data packet; or
  • the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or
  • the time stamp information is included in the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the data transmission method sends a data packet to a receiving node; wherein the data packet carries time stamp information; it can support the receiving node to process the data packet according to the time stamp information, so that those participating in DRB bearer duplication
  • Each link further improves the use efficiency of wireless resources
  • each functional entity responsible for wireless data transmission can schedule data in a timely and accurate manner to ensure the total QOS demand and improve transmission efficiency .
  • the functional entity responsible for data wireless transmission further ensures the Survival time (survival time) performance index; to further optimize the transmission performance, the duplication mechanism for DRB and the scheduling of the IAB network
  • the mechanism can solve some of the problems of wasting wireless resources and difficult to ensure the QOS requirements, thereby greatly improving the performance indicators of the 5G network; it solves the problem of poor transmission performance of the data transmission scheme in related technologies.
  • Figure 1 is a schematic diagram of DRB duplication in related technologies
  • FIG. 2 is a schematic diagram of the IAB network architecture in related technologies
  • FIG. 3 is a first schematic diagram of a data transmission method according to an embodiment of the disclosure.
  • FIG. 4 is a second schematic diagram of the data transmission method according to an embodiment of the disclosure.
  • FIG. 5 is a schematic diagram 1 of a specific application process of the data transmission method according to an embodiment of the disclosure.
  • FIG. 6 is a schematic diagram 2 of a specific application process of the data transmission method according to an embodiment of the disclosure.
  • FIG. 7 is a third schematic diagram of a specific application process of the data transmission method according to an embodiment of the disclosure.
  • FIG. 8 is a fourth schematic diagram of a specific application process of the data transmission method according to an embodiment of the disclosure.
  • FIG. 9 is a schematic diagram of the structure of a sending node according to an embodiment of the disclosure.
  • FIG. 10 is a schematic structural diagram of a receiving node according to an embodiment of the disclosure.
  • FIG. 11 is a first structural diagram of a data transmission device according to an embodiment of the disclosure.
  • FIG. 12 is a second structural diagram of a data transmission device according to an embodiment of the disclosure.
  • the present disclosure provides a data transmission method applied to a sending node, as shown in FIG. 3, including:
  • Step 31 Send a data packet to the receiving node
  • the data packet carries time stamp information.
  • the data transmission method provided by the embodiment of the present disclosure sends a data packet to a receiving node; wherein the data packet carries time stamp information; it can support the receiving node to process the data packet according to the time stamp information so as to participate in DRB bearer
  • Each link of duplication further improves the use efficiency of wireless resources; and for the IAB network, in the case of multiple hops, each functional entity responsible for data wireless transmission can schedule data in a timely and accurate manner, ensuring the total QOS demand and improving Transmission efficiency solves the multi-hop scheduling problem of IAB network;
  • the functional entity responsible for data wireless transmission further ensures Survival time (survival time) performance indicators; to further optimize transmission performance, the duplication mechanism for DRB and IAB network
  • the scheduling mechanism can solve some of the problems of wasting wireless resources and difficult to ensure QOS requirements, thereby greatly improving the performance indicators of the 5G network; it is a good solution to the problem of poor transmission performance of data transmission schemes in related technologies.
  • the time stamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time; the preset The reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the position positioning system may be a global positioning system GPS or other satellite systems, which is not limited here.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the method further includes: receiving the data packet sent by another sending node; wherein the data packet carries the time stamp information, and the time stamp information is the Another sending node sends the sending time information of the data packet; or receives an initial data packet sent by another sending node, and adds the time stamp information to the initial data packet to form the data packet; wherein, The time stamp information is transmission time information when the sending node sends the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the embodiment of the present disclosure also provides a data transmission method, which is applied to a receiving node, as shown in FIG. 4, including:
  • Step 41 Receive a data packet sent by a sending node; wherein, the data packet carries time stamp information;
  • Step 42 Process the data packet according to the time stamp information.
  • the data transmission method provided by the embodiment of the present disclosure receives a data packet sent by a sending node; wherein, the data packet carries time stamp information; the data packet is processed according to the time stamp information; DRB carries the links of duplication to further improve the use efficiency of wireless resources; and for IAB networks, in the case of multiple hops, each functional entity responsible for data wireless transmission can schedule data in a timely and accurate manner to ensure the total QOS demand , Improve transmission efficiency, solve the multi-hop scheduling problem of IAB network; In addition, for IOT business, make the functional entity responsible for data wireless transmission to further ensure Survival time (survival time) performance indicators; to further optimize the transmission performance, the duplication mechanism for DRB and The scheduling mechanism of the IAB network can solve some of the problems of wasting wireless resources and difficult to ensure the QOS requirements, thereby greatly improving the performance indicators of the 5G network; it solves the problem of poor transmission performance of the data transmission scheme in related technologies.
  • the method before receiving the data packet sent by the sending node, the method further includes: establishing or modifying the terminal context with the sending node to obtain the quality of service information of the data packet; correspondingly, the method according to the time stamp Information processing the data packet includes: processing the data packet according to the timestamp information and service quality information.
  • the processing the data packet according to the time stamp information and the service quality information includes: judging whether the data packet meets the delay requirement according to the time stamp information and the service quality information; If it is not satisfied, the data packet is discarded.
  • the transmission of the data packet is continued.
  • the processing the data packet according to the timestamp information and the quality of service information includes: determining the scheduling strategy of the data packet according to the timestamp information and the quality of service information; The scheduling strategy is used to transmit the data packet.
  • establishing or modifying the terminal context with the sending node to obtain the quality of service information of the data packet includes: establishing or modifying the terminal context with the sending node to obtain the information of the data packet Service quality information and routing information; correspondingly, determining the scheduling policy of the data packet according to the time stamp information and service quality information includes: determining the data packet according to the time stamp information, service quality information, and routing information Describe the scheduling strategy of data packets.
  • the determining the scheduling strategy of the data packet according to the timestamp information, the quality of service information, and the routing information includes: according to the timestamp information, the quality of service information, the routing information, and the preset parameter information, Determine the scheduling strategy of the data packet; wherein the preset parameter information includes indication information used to indicate the current transmission state of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the processing the data packet according to the timestamp information and the quality of service information includes: determining whether the data packet is sent out correctly according to the timestamp information and the quality of service information; if If it is not sent correctly, it is judged whether the data transmission of the data packet exceeds the corresponding survival time; processing operations are performed according to the judgment result.
  • the processing operation according to the judgment result includes: if the judgment result is yes, trigger the release of the current service bearer of the data packet, and notify the terminal; if the judgment result is no, perform scheduling adjustment operating.
  • the data transmission of the data packet exceeds the corresponding time-to-live, it further includes: if the data packet is not sent correctly for the first time on the current service bearer, entering the data transmission of the data packet Time to live and start scheduling adjustment operations.
  • establishing or modifying the terminal context with the sending node to obtain the quality of service information of the data packet includes: establishing or modifying the terminal context with the sending node to obtain the information of the data packet The quality of service information and the data transmission lifetime of the data packet.
  • the judging whether the data transmission of the data packet has exceeded the corresponding time-to-live includes: judging whether the data packet is continuously incorrect within a preset time period after the data packet is incorrectly sent for the first time on the current service bearer Send; or determine whether the number of times that the data packet is not sent correctly after being sent out correctly for the first time on the current service bearer reaches a preset threshold.
  • Both the preset time period and the preset threshold can be determined according to the actual demand for transmission performance.
  • the data packet is not sent correctly means that the data packet is not sent out within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the timestamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time;
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the position positioning system may be a global positioning system GPS or other satellite systems, which is not limited here.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the data transmission method provided in the embodiments of the present disclosure will be further described below in conjunction with multiple sides such as a sending node and a receiving node.
  • the duplication mechanism for DRB (data bearer between the terminal and the base station) and the scheduling mechanism of the IAB network need to provide a solution to solve some waste of wireless resources And the problem of difficult to ensure the quality of service QOS requirements, thereby greatly improving the performance indicators of 5G networks.
  • the embodiments of the present disclosure provide a data transmission method, which can improve transmission efficiency and solve the multi-hop scheduling problem of an IAB network.
  • the application server server, or UPF (core network user plane gateway), or the sending node of the network entity that maintains PDCP is allowed to add time stamp information to the downlink data packet.
  • the time stamp information is a time value relative to a certain start time (the above-mentioned preset start time), in units of fixed intervals (that is, the time stamp information is embodied in the form of counts), for example, the fixed interval is 1 ms, or 10 ms, etc.
  • this start time refers to the time point corresponding to a certain reference time (the above-mentioned preset reference time can be configured by the system).
  • This reference time point can be an absolute time of GPS or other satellite systems (the above-mentioned preset absolute time) Time), or a certain reference time point of the time synchronization network (the above-mentioned preset reference time point).
  • this time stamp information is the absolute time of GPS or other satellite systems, or the reference time information of a time synchronization network.
  • the time stamp information can be included in the application data packet, for example: a dedicated synchronization frame header; for UPF or a network entity that maintains PDCP, the time stamp information can be included in the GTP-U packet header.
  • the functional entity responsible for data wireless transmission can perform the following functions: First, the validity of the data packet is judged, that is, if the data packet cannot meet the delay requirement, the data packet will be discarded, thereby saving transmission resources ; Second, the scheduling algorithm can be optimized to ensure that the end-to-end transmission delay of the data packet is guaranteed; third, the survival time of the IIoT service is judged, specifically, within the time required by the time stamp information and the delay in the QOS , The data packet cannot be sent out correctly, it is marked as a failed reception, and a Survival timer is generated to start timing or counting. When N consecutive times (Survival time (survival time) parameter) fail to receive, or Survival timer times out, it is determined that the data transmission exceeds Survival time. Use corresponding performance optimization and bearer management operations for different situations.
  • Example 1 For EN-DC (dual connectivity between Long Term Evolution LTE and New Air Interface NR) or MR-DC (dual connectivity between multi-radio access technology RATs), NR DC (dual connectivity between NRs)
  • the sending node takes the primary node MN as an example
  • the other sending node takes UPF as an example
  • the receiving node takes the secondary node SN as an example.
  • Step 51 The primary node MN configures the secondary node SN to perform EN-DC, MR-DC or NR DC operations through the process of adding or updating the secondary node SN, and the obtained message carries the QOS information of a data stream or data bearer, such as time Related parameters, etc.
  • the data flow or data bearer can be determined according to requirements.
  • Step 52 After completing the configuration, the master node MN receives the data packet (including user data) from the UPF, which contains the time stamp information (which may specifically include the time when the UPF sends the data packet).
  • Step 53 The master node MN forwards this time stamp information to the following functional entities responsible for data wireless transmission through the user plane interface, such as X2 or Xn, etc., such as EN-DC, MR-DC or NR DC and other multi-connection technologies. Secondary node SN.
  • the time stamp information can be included in the GTP-U header.
  • Step 54 The functional entity SN that received the time stamp information can combine the QOS information transmitted in step 51, such as the delay related parameters, to determine whether the data packet can be successfully transmitted to the opposite end under the corresponding delay requirements (UE), such as judging the time length of a data packet from UPF to SN. If the requirements cannot be met, the data packet will be discarded, thereby saving transmission resources (that is, performing effective operations).
  • UE delay requirements
  • the PDCP network entity MN (in this example, the MN in step 52) maintained by the radio access network RAN side, adds a time stamp information (specifically It can be the time when the MN sends the data packet in step 52, which can be represented in the form of a number. The time difference between the sending and receiving of the data packet corresponding to the number is known) to the data packet to be transmitted, and then forwarded to the following responsible data wireless
  • the functional entity SN of the transmission This information can be contained in the GTP-U header or in the adaptation layer of the data packet.
  • the subsequent processing is the same as steps 53-54.
  • Example 2 For information exchange between network nodes under the architecture where CU and DU are separated, the sending node takes CU as an example, the other sending node takes UPF as an example, and the receiving node takes DU as an example.
  • Step 61 The CU entity configures the DU entity through the UE context establishment or modification process, and the message carries the QOS information of a certain data stream or data bearer, such as delay related parameters.
  • the data flow or data bearer can be determined according to requirements.
  • Step 62 After completing the configuration, the CU entity receives a data packet (including user data) from the UPF, which contains time stamp information (which may specifically include the time when the UPF sends the data packet).
  • a data packet including user data
  • time stamp information which may specifically include the time when the UPF sends the data packet.
  • Step 63 The CU entity forwards the timestamp information through a user plane interface, such as an F1 interface, to the following functional entity DU responsible for data wireless transmission.
  • the time stamp information is contained in the GTP-U header.
  • Step 64 The functional entity DU that has received the time stamp information can combine the QOS information transmitted in step 61, such as delay-related parameters, to determine whether the data packet can be successfully transmitted to the opposite end under the corresponding delay requirements (UE), such as judging the time length of a data packet from UPF to DU. If the requirements cannot be met, the data packet will be discarded, thereby saving transmission resources (ie, performing effective operations).
  • QOS information transmitted in step 61 such as delay-related parameters
  • the PDCP network entity CU (in this example, the CU in step 62) maintained by the radio access network RAN side, adds a time stamp information (specifically It can be the time when the CU sends the data packet in step 62, which can be reflected in the form of a number. The time difference between the sending and receiving of the data packet corresponding to the number is known) to the data packet to be transmitted, and then forwarded to the following responsible data wireless
  • the functional entity of the transmission DU This information can be contained in the GTP-U header or in the adaptation layer of the data packet.
  • the subsequent processing is the same as steps 63-64.
  • Example 3 For information exchange between nodes under the IAB network architecture, the sending node takes Donor-CU as an example, the other sending node takes UPF as an example, and the receiving node takes Donor-DU as an example.
  • Steps 71-73 Donor-CU entity, through the UE context establishment or modification process, configure the DU (at least one DU, if there are multiple DUs in series) entities of the IAB network, and the message carries a certain data stream or data bearer QOS information, such as delay related parameters; optionally, contains routing related information.
  • the data flow or data bearer can be determined according to requirements.
  • Step 74 After completing the configuration, the Donor-CU entity receives the data packet (including user data) from the UPF, which contains the time stamp information;
  • Step 75 The Donor-CU entity forwards this time stamp information to the following functional entity responsible for wireless data transmission, such as Donor-DU, through a user plane interface, such as an F1 interface.
  • the time stamp information is contained in the GTP-U header.
  • Step 76 The functional entity that receives the time stamp information, such as Donor-DU, can combine the QOS information transmitted in step 71 with routing-related information, for example, combining the delay-related parameters and other parameters (for example, to The remaining number of hops of the target IAB node) determines the scheduling strategy 1 of the data packet to ensure that the time delay for the data packet to reach the UE after the multi-hop IAB node meets the end-to-end requirement of QOS.
  • routing-related information for example, combining the delay-related parameters and other parameters (for example, to The remaining number of hops of the target IAB node) determines the scheduling strategy 1 of the data packet to ensure that the time delay for the data packet to reach the UE after the multi-hop IAB node meets the end-to-end requirement of QOS.
  • determine the length of the remaining path according to routing-related information determine the number of remaining nodes that need to be passed according to the number of remaining hops, and determine the transmission priority according to the length of the remaining path and the number of remaining nodes (for example, if there are more remaining, the priority is high);
  • the scheduling strategy of the data packet is obtained.
  • Steps 77 to 710 Similar to the above steps 75 to 76 (just perform the transformation of the main body), execute the scheduling strategy 2 and 3 of the data packet respectively, so that the data packet reaches the UE after the multi-hop IAB node and the delay meets the QOS end End-to-end requirements.
  • the time stamp information can be included in the GTP-U header or the adaptation layer of the data packet.
  • Step 711 The last hop IAB node (IAB node) sends user data to the UE.
  • the last hop IAB node in this example is IAB-node2 in Figure 7.
  • the radio access network RAN side maintains the PDCP network entity Donor-CU (in this example, the CU in step 74), adding a time stamp information (Specifically, it can be the time when the CU sends the data packet in step 74, which can be reflected in the form of a number, and the time difference between the sending and receiving of the data packet corresponding to the number is known) to the data packet to be transmitted, and then forwarded to the following responsible All levels of DU functional entities for wireless data transmission.
  • This information can be contained in the GTP-U header, or the adaptation layer of the data packet.
  • the subsequent processing is the same as steps 75-711.
  • Example 4 How to guarantee survival time under the architecture where CU and DU are separated, the sending node takes CU as an example, the other sending node takes UPF as an example, and the receiving node takes DU as an example.
  • Step 81 The CU entity configures the DU entity through the UE context establishment or modification process.
  • the message carries the QOS information of a certain data stream or data bearer, such as delay-related parameters, and survival time (survival time) parameters.
  • the data flow or data bearer can be determined according to requirements.
  • Step 82 After the configuration is completed, the CU entity receives a data packet (including user data) from the UPF, which contains time stamp information (which may specifically include the time when the UPF sends the data packet).
  • a data packet including user data
  • time stamp information which may specifically include the time when the UPF sends the data packet.
  • Step 83 The CU entity forwards the timestamp information through a user plane interface, such as an F1 interface, to the following functional entity DU responsible for data wireless transmission.
  • the time stamp information is contained in the GTP-U header.
  • Step 84 The functional entity DU that has received this time stamp information can combine the QOS information transmitted in step 81, such as the delay related parameters, to determine whether the data transmission has entered Survival time or has exceeded Survival time (that is, perform survival time judgment ); Specifically, within the time required by the time-stamp information and the delay in QOS, the data packet cannot be sent out correctly (not sent out, or sent out without receiving confirmation response), and marked as a failed reception (from the Described in the end), start Survival timer timing or counting. When N consecutive times (Survival time (survival time) parameter) fail to receive, or Survival timer times out, it is determined that the data transmission exceeds Survival time.
  • operations such as scheduling or performance optimization are started, for example, operations such as suspending the suspend service bearer (that is, suspending data transmission, but the configuration still exists) are allowed to resume or rebuilding the service bearer; and if it is The latter (exceeding Survival time) will directly trigger the release of the service bearer and other operations, and notify the UE through signaling.
  • the PDCP network entity CU (in this example, the CU in step 82) maintained by the radio access network RAN side, adds a time stamp information (specifically It can be the time when the CU in step 82 sends the data packet, which can be embodied in the form of a number. The time difference between the sending and receiving of the data packet corresponding to the number is known) to the data packet to be transmitted, and then forwarded to the following responsible data wireless The functional entity of the transmission DU. This information is contained in the GTP-U header. The subsequent processing is the same as steps 83 to 84.
  • the time stamp information is a time value relative to a certain start time, in fixed intervals, such as 1ms, or 10ms, etc., and this start time refers to the time point corresponding to a certain reference time.
  • This reference The time point can be a certain absolute time of GPS or other satellite systems, or a certain reference time point of a time synchronization network.
  • this time stamp information is the absolute time of GPS or other satellite systems, or the reference time information of a time synchronization network.
  • the timestamp information can be included in the application data packet, for example, a dedicated synchronization frame header.
  • the timestamp information can be included in the GTP-U packet header.
  • the functional entity responsible for data wireless transmission will perform survival time judgment, specifically, the time required for the time delay in the time stamp information and QOS Inside, the data packet cannot be sent correctly, it is marked as a failed reception, and the Survival timer starts to count or count.
  • N consecutive times Survival time (survival time) parameter
  • survival timer times out it is determined that the data transmission exceeds Survival time.
  • the solution provided by the embodiments of the present disclosure will enable each link participating in the DRB bearer duplication to further improve the use efficiency of wireless resources; and for the IAB network, in the case of multiple hops, each link responsible for data wireless transmission can be
  • the functional entity schedules data in a timely and accurate manner to ensure the overall QOS requirements; in addition, for the IOT business, the functional entity responsible for data wireless transmission further ensures the survival time (survival time) performance index.
  • the embodiments of the present disclosure also provide a sending node, including a memory, a processor, a transceiver, and a computer program stored on the memory and running on the processor; the processor executes the program when the program is executed The following steps:
  • the data packet carries time stamp information.
  • the sending node provided by the embodiment of the present disclosure sends a data packet to the receiving node through the transceiver; wherein, the data packet carries time stamp information; it can support the receiving node to process the data packet according to the time stamp information, so that Each link participating in the DRB bearer duplication further improves the use efficiency of wireless resources; and for the IAB network, in the case of multi-hop, each functional entity responsible for data wireless transmission can schedule data in a timely and accurate manner to ensure the total QOS To improve the transmission efficiency and solve the multi-hop scheduling problem of the IAB network; in addition, for the IIoT business, the functional entity responsible for data wireless transmission further ensures the Survival time performance index; to further optimize the transmission performance, the duplication mechanism for DRB And the scheduling mechanism of the IAB network can solve some of the problems of wasting wireless resources and difficult to ensure the QOS requirements, thereby greatly improving the performance indicators of the 5G network; it is a good solution to the problem of poor transmission performance of data transmission schemes in related technologies.
  • the sending node of the embodiment of the present disclosure includes:
  • the data packet carries time stamp information.
  • the transceiver 94 is connected to the bus interface 92 for receiving and sending data under the control of the processor 91.
  • the bus architecture may include any number of interconnected buses and bridges, and specifically one or more processors represented by the processor 91 and various circuits of the memory represented by the memory 93 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all well-known in the art, and therefore, no further description will be given herein.
  • the bus interface provides the interface.
  • the transceiver 94 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 91 is responsible for managing the bus architecture and general processing, and the memory 93 can store data used by the processor 91 when performing operations.
  • the time stamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time; the preset The reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the processor is further configured to: before sending the data packet to the receiving node, receive the data packet sent by another sending node through the transceiver; wherein the data packet carries the time stamp Information, the timestamp information is the transmission time information of the data packet sent by the other sending node; or the initial data packet sent by another sending node is received through the transceiver, and the initial data packet is added
  • the time stamp information forms the data packet; wherein, the time stamp information is transmission time information of the data packet sent by the sending node.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the implementation embodiments of the data transmission method on the sending node side are all applicable to the embodiment of the sending node, and the corresponding same technical effects can also be achieved.
  • the embodiment of the present disclosure also provides a receiving node, including a memory, a processor, a transceiver, and a computer program stored on the memory and running on the processor; the processor executes the program when the program is executed The following steps:
  • the data packet is processed according to the time stamp information.
  • the receiving node receives the data packet sent by the sending node through the transceiver; wherein the data packet carries time stamp information; the data packet is processed according to the time stamp information; It can make each link participating in the DRB bearer duplication further improve the efficiency of wireless resource utilization; and for IAB networks, in the case of multi-hop, it can enable each functional entity responsible for data wireless transmission to schedule data in a timely and accurate manner to ensure total To improve the transmission efficiency and solve the multi-hop scheduling problem of the IAB network; In addition, for the IOT business, the functional entity responsible for data wireless transmission further ensures the Survival time (survival time) performance index; to further optimize the transmission performance, for the DRB
  • the duplication mechanism and the scheduling mechanism of the IAB network can solve some of the problems of wasting wireless resources and difficult to ensure the QOS requirements, thereby greatly improving the performance indicators of the 5G network; it is a good solution to the problem of poor transmission performance of the data transmission scheme in related technologies.
  • the receiving node in the embodiment of the present disclosure includes:
  • the data packet is processed according to the time stamp information.
  • the transceiver 104 is connected to the bus interface 102, and is used to receive and send data under the control of the processor 101.
  • the bus architecture may include any number of interconnected buses and bridges, and specifically one or more processors represented by the processor 101 and various circuits of the memory represented by the memory 103 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all well-known in the art, and therefore, no further description will be given herein.
  • the bus interface provides the interface.
  • the transceiver 104 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 101 is responsible for managing the bus architecture and general processing, and the memory 103 can store data used by the processor 101 when performing operations.
  • the processor is further configured to: before receiving the data packet sent by the sending node, establish or modify the terminal context with the sending node to obtain the quality of service information of the data packet; correspondingly, the The processor is specifically configured to process the data packet according to the time stamp information and the quality of service information.
  • the processor is specifically configured to: determine whether the data packet meets the delay requirement according to the timestamp information and the quality of service information; if not, discard the data packet.
  • the processor is specifically configured to: determine the scheduling strategy of the data packet according to the timestamp information and the quality of service information; and transmit the data packet according to the scheduling strategy.
  • the processor is specifically configured to: establish or modify the terminal context with the sending node to obtain the quality of service information and routing information of the data packet; correspondingly, the processor is specifically configured to: The time stamp information, service quality information, and routing information are used to determine the scheduling strategy of the data packet.
  • the processor is specifically configured to: determine the scheduling strategy of the data packet according to the time stamp information, service quality information, routing information, and preset parameter information; wherein, the preset parameter information includes Indication information used to indicate the current transmission state of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the processor is specifically configured to: determine whether the data packet is sent correctly according to the timestamp information and service quality information; if it is not sent correctly, determine whether the data transmission of the data packet is Exceed the corresponding survival time; perform processing operations according to the judgment result.
  • the processor is specifically configured to: if the judgment result is yes, trigger the release of the current service bearer of the data packet, and notify the terminal; if the judgment result is no, perform a scheduling adjustment operation.
  • the processor is further configured to: before judging whether the data transmission of the data packet exceeds the corresponding survival time, if the data packet is not sent correctly for the first time on the current service bearer, enter the data The survival time of the data transmission of the packet, and start the scheduling adjustment operation.
  • the processor is specifically configured to establish or modify the terminal context with the sending node to obtain the quality of service information of the data packet and the data transmission lifetime of the data packet.
  • the processor is specifically configured to: determine whether the data packet has not been sent correctly within a preset period of time after the data packet is not sent correctly for the first time on the current service bearer; or determine whether the data packet is not sent correctly on the current service bearer. Whether the number of consecutive incorrectly issued after the first incorrectly issued last time reaches the preset threshold.
  • the data packet is not sent correctly means that the data packet is not sent out within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the timestamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time;
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the implementation embodiments of the data transmission method on the receiving node side are all applicable to the embodiments of the receiving node, and the same corresponding technical effects can also be achieved.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the data transmission method on the sending node side are realized; or
  • the foregoing implementation embodiments of the data transmission method on the sending node side or the receiving node side are all applicable to the embodiment of the computer-readable storage medium, and the same corresponding technical effects can also be achieved.
  • the embodiment of the present disclosure also provides a data transmission device, which is applied to a sending node, as shown in FIG. 11, including:
  • the first sending module 111 is configured to send data packets to the receiving node
  • the data packet carries time stamp information.
  • the data transmission device sends a data packet to a receiving node; wherein the data packet carries time stamp information; it can support the receiving node to process the data packet according to the time stamp information so as to participate in DRB bearer
  • Each link of duplication further improves the use efficiency of wireless resources; and for the IAB network, in the case of multiple hops, each functional entity responsible for data wireless transmission can schedule data in a timely and accurate manner, ensuring the total QOS demand and improving Transmission efficiency solves the multi-hop scheduling problem of the IAB network;
  • the functional entity responsible for data wireless transmission further ensures the Survival time performance index; realizes further optimization of transmission performance, the duplication mechanism for DRB and the IAB network
  • the scheduling mechanism can solve some of the problems of wasting wireless resources and difficult to ensure QOS requirements, thereby greatly improving the performance indicators of the 5G network; it is a good solution to the problem of poor transmission performance of data transmission schemes in related technologies.
  • the time stamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time; the preset The reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the data transmission device further includes: a first receiving module, configured to receive the data packet sent by another sending node before sending the data packet to the receiving node; wherein, the data packet carries the Timestamp information, where the timestamp information is the transmission time information of the data packet sent by the other sending node; or the initial data packet sent by another sending node is received, and the time is added to the initial data packet Stamp information to form the data packet; wherein, the time stamp information is the sending time information of the data packet sent by the sending node.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the implementation embodiments of the data transmission method on the sending node side are all applicable to the embodiments of the data transmission device, and the same technical effect can also be achieved.
  • the embodiment of the present disclosure also provides a data transmission device applied to a receiving node, as shown in FIG. 12, including:
  • the second receiving module 121 is configured to receive a data packet sent by a sending node; wherein, the data packet carries time stamp information;
  • the first processing module 122 is configured to process the data packet according to the time stamp information.
  • the data transmission device receives a data packet sent by a sending node; wherein, the data packet carries time stamp information; the data packet is processed according to the time stamp information; DRB bears the links of duplication to further improve the efficiency of wireless resource utilization; for IAB networks, in the case of multiple hops, each functional entity responsible for data wireless transmission can schedule data in a timely and accurate manner to ensure total QOS requirements , Improve transmission efficiency, solve the multi-hop scheduling problem of IAB network; In addition, for IOT business, make the functional entity responsible for data wireless transmission to further ensure Survival time (survival time) performance indicators; to further optimize the transmission performance, the duplication mechanism for DRB and The scheduling mechanism of the IAB network can solve some of the problems of wasting wireless resources and difficult to ensure the QOS requirements, thereby greatly improving the performance indicators of the 5G network; it solves the problem of poor transmission performance of data transmission schemes in related technologies.
  • the data transmission device further includes: a second processing module, configured to establish or modify the terminal context with the sending node before receiving the data packet sent by the sending node to obtain the quality of service of the data packet Information;
  • the first processing module includes: a first processing sub-module configured to process the data packet according to the time stamp information and the quality of service information.
  • the first processing submodule includes: a first judging unit, configured to judge whether the data packet meets the delay requirement according to the timestamp information and service quality information; the first processing unit uses If it is not satisfied, then discard the data packet.
  • the first processing submodule includes: a first determining unit, configured to determine a scheduling strategy of the data packet according to the time stamp information and service quality information; and a second processing unit, configured to determine The scheduling strategy transmits the data packet.
  • the second processing module includes: a second processing sub-module for establishing or modifying the terminal context with the sending node to obtain the quality of service information and routing information of the data packet; correspondingly,
  • the second processing unit includes: a first determining subunit, configured to determine a scheduling strategy of the data packet according to the time stamp information, service quality information, and routing information.
  • the first determining subunit is specifically configured to determine the scheduling strategy of the data packet according to the time stamp information, service quality information, routing information, and preset parameter information; wherein, the preset The parameter information includes indication information used to indicate the current transmission state of the data packet.
  • the indication information includes the remaining number of hops from the data packet to the target node.
  • the first processing submodule includes: a second determining unit, configured to determine whether the data packet is sent correctly according to the timestamp information and service quality information; and a second determining unit, configured to If it is not sent out correctly, it is determined whether the data transmission of the data packet exceeds the corresponding survival time; the third processing unit is configured to perform processing operations according to the determination result.
  • the third processing unit is specifically configured to: if the judgment result is yes, trigger the release of the current service bearer of the data packet, and notify the terminal; if the judgment result is no, perform a scheduling adjustment operation .
  • the data transmission device further includes: a third processing module, configured to determine whether the data transmission of the data packet exceeds the corresponding survival time, if the data packet is not correct for the first time on the current service bearer If the data packet is sent, the survival time of the data transmission of the data packet is entered, and the scheduling adjustment operation is started.
  • a third processing module configured to determine whether the data transmission of the data packet exceeds the corresponding survival time, if the data packet is not correct for the first time on the current service bearer If the data packet is sent, the survival time of the data transmission of the data packet is entered, and the scheduling adjustment operation is started.
  • the second processing module includes: a third processing sub-module, which is used to establish or modify the terminal context with the sending node to obtain the quality of service information of the data packet and the data transmission of the data packet Survival time.
  • the second judging unit a first judging subunit for judging whether the data packet has not been sent correctly within a preset period of time after the data packet is not sent correctly for the first time on the current service bearer; or Whether the number of times that the data packet is not correctly transmitted for the first time on the current service bearer reaches a preset threshold.
  • the data packet is not sent correctly means that the data packet is not sent out within the time delay required in the service quality information, or the data packet is not sent out within the required time delay in the service quality information The data packet was sent out, but no confirmation response to the data packet was received.
  • the timestamp information is a time value relative to a preset start time, with a fixed time interval as a unit; wherein, the preset start time refers to a time point corresponding to a preset reference time;
  • the preset reference time is a preset absolute time of the position positioning system, or a preset reference time point of a time synchronization network.
  • time stamp information is absolute time information of a position positioning system, or reference time information of a time synchronization network.
  • the time stamp information is included in the application data packet; or the time stamp information is included in the General Packet Radio Service Tunneling Protocol-Data Transmission GTP-U header of the data packet; or the time stamp information includes In the adaptation layer of the data packet.
  • the sending node is an application server, a core network user plane gateway, a network entity with a PDCP layer of a packet data convergence protocol, a master node in a dual connection state, or a centralized unit CU in a 5G architecture.
  • the implementation embodiments of the data transmission method on the receiving node side are all applicable to the embodiments of the data transmission device, and the same technical effect can also be achieved.
  • modules/submodules/units/subunits may be implemented by software so as to be executed by various types of processors.
  • an identified executable code module may include one or more physical or logical blocks of computer instructions. For example, it may be constructed as an object, process, or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different bits. When these instructions are logically combined together, they constitute a module and implement the requirements of the module. purpose.
  • the executable code module may be a single instruction or many instructions, and may even be distributed on multiple different code segments, distributed in different programs, and distributed across multiple memory devices.
  • operating data can be identified within the module, and can be implemented in any suitable form and organized in any suitable type of data structure. The operating data may be collected as a single data set, or may be distributed in different locations (including on different storage devices), and at least partly may only exist as electronic signals on the system or network.
  • the module can be realized by software, taking into account the level of hardware technology in the related technology, the module can be realized by software.
  • the hardware circuit includes conventional very large-scale integration (VLSI) circuits or gate arrays, and semiconductors or other discrete components in related technologies such as logic chips and transistors.
  • VLSI very large-scale integration
  • Modules can also be implemented with programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP Device, DSPD), programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this disclosure Electronic unit or its combination.
  • ASICs application specific integrated circuits
  • DSP digital signal processors
  • DSP Device digital signal processing devices
  • DPD digital signal processing devices
  • PLD programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.

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Abstract

本公开提供了一种数据传输方法、装置、发送节点及接收节点，其中，数据传输方法包括：向接收节点发送数据包；数据包中携带有时间戳信息。

Description

数据传输方法、装置、发送节点及接收节点
相关申请的交叉引用
本申请主张在2019年1月24日在中国提交的中国专利申请No.201910068803.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，特别是指一种数据传输方法、装置、发送节点及接收节点。
背景技术
随着网络的不断演进，IIOT(短时延高可靠)业务和IAB(Integrated Access and Backhaul，接入和回传一体化)技术都对网络架构提出了更高的性能需求。其中，具体地，(1)DRB(终端与基站之间的数据承载)的duplication(重复)机制可如图1所示，当通过无线资源控制RRC消息配置重复传输机制给终端UE后，UE将给当前的DRB承载增加另一条无线链路层控制协议RLC实体和逻辑信道，该DRB承载的分组数据汇聚协议PDCP实体对于需要发送的数据包，将重复在两条链路上传输：
一条链路是原来的RLC实体，而另一条链路是新增加的RLC实体。这种重复传输的机制能大大提高空口传输的可靠性并缩短传输时延。
图1中的MN表示主节点、SN表示辅节点、MAC表示媒体接入控制。
(2)相关技术中的一种IAB网络架构，可如图2所示，图中，来自Donor-CU的用户面下行数据包，将通过Donor内的F1-U接口，传送给Donor-DU，然后再转发给IAB node1和IAB node 2，最后到达UE。数据传输过程，数据包中包含了GTP-U信息和适配层信息。
图中的SDAP表示业务数据适应协议，DU表示集中单元，MT表示移动终端部分，CU-UP表示分离单元-用户面，GTP-U表示通用分组无线业务隧道协议-数据传输，UDP表示用户数据报协议，IP表示Internet协议，Adapt表示适配层，BH-RLC channel表示回程RLC逻辑信道，Intra-donor F1-U表 示宿主节点内的F1-U接口，IAB-donor表示IAB的宿主节点。
但是，按照相关技术实现，PDCP duplication情况下，某些数据包在负责数据无线传输的功能实体中缓存的时间超过其时延要求时再进行数据传输将浪费无线资源。此外，针对IAB网络，多跳的情况下，仅依赖端到端的时延要求，无法使得负责数据无线传输的各个功能实体及时而精确地调度数据，从而确保满足总服务质量QOS需求。
因此，针对DRB的duplication机制(重复传输)，以及IAB网络的调度机制，相关技术中的传输性能较差，存在一些浪费无线资源以及QOS要求难以确保的问题，降低了5G网络的性能指标。
发明内容
本公开的目的在于提供一种数据传输方法、装置、发送节点及接收节点，解决相关技术中数据传输方案的传输性能差的问题。
为了解决上述技术问题，本公开实施例提供一种数据传输方法，应用于发送节点，包括：
向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，在向接收节点发送数据包之前，还包括：
接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者
接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开实施例还提供了一种数据传输方法，应用于接收节点，包括：
接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
根据所述时间戳信息对所述数据包进行处理。
可选地，在接收发送节点发送的数据包之前，还包括：
与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；
所述根据所述时间戳信息对所述数据包进行处理，包括：
根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
可选地，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；
若不满足，则丢弃所述数据包。
可选地，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；
根据所述调度策略，对所述数据包进行传输。
可选地，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：
与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服 务质量信息和路由信息；
所述根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略，包括：
根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
可选地，所述根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略，包括：
根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；
其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
可选地，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
可选地，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；
若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；
根据判断结果进行处理操作。
可选地，所述根据判断结果进行处理操作，包括：
若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；
若所述判断结果为否，则执行调度调整操作。
可选地，在判断所述数据包的数据传输是否超过了对应的生存时间之前，还包括：
若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
可选地，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：
与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服 务质量信息和所述数据包的数据传输的生存时间。
可选地，所述判断所述数据包的数据传输是否超过了对应的生存时间，包括：
判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者
判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
可选地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开实施例还提供了一种发送节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现以下步骤：
通过所述收发机向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，所述处理器还用于：
在向接收节点发送数据包之前，通过所述收发机接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者
通过所述收发机接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开实施例还提供了一种接收节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现以下步骤：
通过所述收发机接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
根据所述时间戳信息对所述数据包进行处理。
可选地，所述处理器还用于：
在接收发送节点发送的数据包之前，与所述发送节点之间进行终端上下 文建立或修改，得到所述数据包的服务质量信息；
所述处理器具体用于：
根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
可选地，所述处理器具体用于：
根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；
若不满足，则丢弃所述数据包。
可选地，所述处理器具体用于：
根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；
根据所述调度策略，对所述数据包进行传输。
可选地，所述处理器具体用于：
与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；
所述处理器具体用于：
根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
可选地，所述处理器具体用于：
根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；
其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
可选地，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
可选地，所述处理器具体用于：
根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；
若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；
根据判断结果进行处理操作。
可选地，所述处理器具体用于：
若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通 知终端；
若所述判断结果为否，则执行调度调整操作。
可选地，所述处理器还用于：
在判断所述数据包的数据传输是否超过了对应的生存时间之前，若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
可选地，所述处理器具体用于：
与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
可选地，所述处理器具体用于：
判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者
判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
可选地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数 据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述发送节点侧的数据传输方法的步骤；或者
该程序被处理器执行时实现上述接收节点侧的数据传输方法的步骤。
本公开实施例还提供了一种数据传输装置，应用于发送节点，包括：
第一发送模块，用于向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，还包括：
第一接收模块，用于在向接收节点发送数据包之前，接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者
接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集 中单元CU。
本公开实施例还提供了一种数据传输装置，应用于接收节点，包括：
第二接收模块，用于接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
第一处理模块，用于根据所述时间戳信息对所述数据包进行处理。
可选地，还包括：
第二处理模块，用于在接收发送节点发送的数据包之前，与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；
所述第一处理模块，包括：
第一处理子模块，用于根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
可选地，所述第一处理子模块，包括：
第一判断单元，用于根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；
第一处理单元，用于若不满足，则丢弃所述数据包。
可选地，所述第一处理子模块，包括：
第一确定单元，用于根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；
第二处理单元，用于根据所述调度策略，对所述数据包进行传输。
可选地，所述第二处理模块，包括：
第二处理子模块，用于与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；
所述第二处理单元，包括：
第一确定子单元，用于根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
可选地，所述第一确定子单元，具体用于：
根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；
其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状 态的指示信息。
可选地，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
可选地，所述第一处理子模块，包括：
第二确定单元，用于根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；
第二判断单元，用于若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；
第三处理单元，用于根据判断结果进行处理操作。
可选地，所述第三处理单元具体用于：
若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；
若所述判断结果为否，则执行调度调整操作。
可选地，还包括：
第三处理模块，用于在判断所述数据包的数据传输是否超过了对应的生存时间之前，若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
可选地，所述第二处理模块，包括：
第三处理子模块，用于与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
可选地，所述第二判断单元：
第一判断子单元，用于判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者
判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
可选地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
可选地，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
其中，所述预设开始时间是指与预设参考时间相对应的时间点；
所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
可选地，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
可选地，所述时间戳信息包含在应用数据包中；或者
所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
所述时间戳信息包含在所述数据包的适配层中。
可选地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开的上述技术方案的有益效果如下：
上述方案中，所述数据传输方法通过向接收节点发送数据包；其中，所述数据包中携带有时间戳信息；能够支撑接收节点根据时间戳信息对数据包进行处理，使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为相关技术中的DRB duplication示意图；
图2为相关技术中的IAB网络架构示意图；
图3为本公开实施例的数据传输方法流程示意图一；
图4为本公开实施例的数据传输方法流程示意图二；
图5为本公开实施例的数据传输方法具体应用流程示意图一；
图6为本公开实施例的数据传输方法具体应用流程示意图二；
图7为本公开实施例的数据传输方法具体应用流程示意图三；
图8为本公开实施例的数据传输方法具体应用流程示意图四；
图9为本公开实施例的发送节点结构示意图；
图10为本公开实施例的接收节点结构示意图；
图11为本公开实施例的数据传输装置结构示意图一；
图12为本公开实施例的数据传输装置结构示意图二。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本公开针对相关技术中数据传输方案的传输性能差的问题，提供一种数据传输方法，应用于发送节点，如图3所示，包括：
步骤31：向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
本公开实施例提供的所述数据传输方法通过向接收节点发送数据包；其中，所述数据包中携带有时间戳信息；能够支撑接收节点根据时间戳信息对数据包进行处理，使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升 5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
其中，位置定位系统可为全球定位系统GPS或其他卫星系统，在此不作限定。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
进一步地，在向接收节点发送数据包之前，还包括：接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
本公开实施例还提供了一种数据传输方法，应用于接收节点，如图4所示，包括：
步骤41：接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
步骤42：根据所述时间戳信息对所述数据包进行处理。
本公开实施例提供的所述数据传输方法通过接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；根据所述时间戳信息对所述数据包 进行处理；能够使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
进一步地，在接收发送节点发送的数据包之前，还包括：与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；对应地，所述根据所述时间戳信息对所述数据包进行处理，包括：根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
本公开实施例中关于针对数据包的处理提供以下三种示例，但并不以此为限：
第一种示例，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；若不满足，则丢弃所述数据包。
进一步地，若所述数据包满足时延要求，则继续进行所述数据包的传输。
第二种示例，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；根据所述调度策略，对所述数据包进行传输。
其中，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；对应地，所述根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略，包括：根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
具体地，所述根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略，包括：根据所述时间戳信息、服务质量信息、路由 信息以及预设参变量信息，确定所述数据包的调度策略；其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
其中，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
第三种示例，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；根据判断结果进行处理操作。
其中，所述根据判断结果进行处理操作，包括：若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；若所述判断结果为否，则执行调度调整操作。
进一步地，在判断所述数据包的数据传输是否超过了对应的生存时间之前，还包括：若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
其中，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
具体地，所述判断所述数据包的数据传输是否超过了对应的生存时间，包括：判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
预设时段和预设阈值均可根据对传输性能的实际需求进行确定。
更具体地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
本公开实施例中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为 时间同步网络的参考时间信息。
其中，位置定位系统可为全球定位系统GPS或其他卫星系统，在此不作限定。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
更具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
下面结合发送节点和接收节点等多侧对本公开实施例提供的所述数据传输方法进行进一步说明。
考虑到为了进一步优化传输性能，针对DRB(终端与基站之间的数据承载)的duplication(重复)机制(重复传输)，以及IAB网络的调度机制，需要提供一种方案，以解决一些浪费无线资源以及服务质量QOS要求难以确保的问题，从而大大提升5G网络的性能指标。本公开实施例提供了一种数据传输方法，可以提升传输效率，解决IAB网络多跳调度问题。
本公开实施例提供的方案主要涉及：
允许应用服务器server，或UPF(核心网用户面网关)，或保持有PDCP的网络实体等发送节点，增加时间戳信息到下行数据包里。具体地，例如：时间戳信息为相对某一个开始时间(上述预设开始时间)的时间值，以固定间隔为单位(即时间戳信息以计数形式体现)，例如固定间隔为1ms，或10ms等，而这个开始时间是指与某一个参考时间(上述预设参考时间，可由系统配置)相对应的时间点，此参考时间点可以是GPS或其他卫星系统的某一个绝对时间(上述预设绝对时间)，或是时间同步网络的某一个参考时间点(上述预设参考时间点)。可选地，这个时间戳信息为GPS或其他卫星系统的绝对时间，或是时间同步网络的参考时间信息。
对于应用server，该时间戳信息可以包含在应用数据包里，例如：专用的同步帧头中；对于UPF或保持有PDCP的网络实体，该时间戳信息可以包含在GTP-U包头中。
负责数据无线传输的功能实体接收到此时间戳信息后，可执行下述功能：其一，数据包有效性判断，即如果该数据包无法满足时延要求，将丢弃数据包，从而节省传输资源；其二，可以优化调度算法，从而确保数据包的端到端传输时延被保证；其三，IIOT业务的存活时间判断，具体地，在时间戳信息和QOS中的时延要求的时间内，该数据包无法被正确发出，标记为一次失败接收，开始生成定时器Survival timer计时或计数。而当连续N次(Survival time(生存时间)参数)失败接收，或Survival timer超时时，即判断为数据传输超过Survival time。针对不同情况采用相应的性能优化和承载管理等操作。
下面对本公开实施例提供的方案进行举例说明。
示例1：针对EN-DC(长期演进LTE和新空口NR之间的双连接)或MR-DC(多无线接入技术RAT之间的双连接)，NR DC(NR之间的双连接)下不同节点之间的信息交互，所述发送节点以主节点MN为例，所述另一发送节点以UPF为例，所述接收节点以辅节点SN为例。
具体可如图5所示，包括：
步骤51：主节点MN，通过辅节点SN添加或更新过程，配置辅节点SN进行EN-DC、MR-DC或NR DC操作，得到的消息中携带某数据流或数据承载的QOS信息，例如时延相关参数等。
关于数据流或数据承载可根据需求确定。
步骤52：完成配置后，主节点MN接收来自UPF的数据包(包含用户数据)，其中包含时间戳信息(具体可包含UPF发送数据包的时间)。
步骤53：主节点MN将此时间戳信息通过用户面接口，例如X2或Xn等，转发给下面负责数据无线传输的功能实体，例如EN-DC、MR-DC或NR DC等多连接技术中的辅节点SN。该时间戳信息可包含在GTP-U头中。
步骤54：接收到此时间戳信息的功能实体SN，可以结合步骤51传输的QOS信息，例如其中时延相关参数，判断该数据包，是否能在对应的时延要求下，成功传输到对端(UE)，比如判断数据包从UPF到SN的时间长度。如果无法满足要求，将丢弃数据包，从而节省传输资源(即执行有效性操作)。
其中：对于步骤52的数据包中不包含时间戳信息情况，则由无线接入网RAN侧保持有PDCP的网络实体MN(本示例中即步骤52中的MN)，添加 一个时间戳信息(具体可为步骤52中的MN发送数据包的时间，可以用编号形式体现，关于编号对应的数据包发送与接收之间的时间差已知)到待传输的数据包中，随后转发给下面负责数据无线传输的功能实体SN。该信息可包含在GTP-U头中，或数据包的适配层中。后续处理与步骤53～54相同。
示例2：针对CU和DU分离的架构下，网络节点之间的信息交互，所述发送节点以CU为例，所述另一发送节点以UPF为例，所述接收节点以DU为例。
具体可如图6所示，包括：
步骤61：CU实体，通过UE上下文建立或修改过程，配置DU实体，消息中携带某数据流或数据承载的QOS信息，例如时延相关参数等。
关于数据流或数据承载可根据需求确定。
步骤62：完成配置后，CU实体接收来自UPF的数据包(包含用户数据)，其中包含时间戳信息(具体可包含UPF发送数据包的时间)。
步骤63：CU实体将此时间戳信息通过用户面接口，例如F1接口，转发给下面负责数据无线传输的功能实体DU。该时间戳信息包含在GTP-U头中。
步骤64：接收到此时间戳信息的功能实体DU，可以结合步骤61传输的QOS信息，例如其中时延相关参数，判断该数据包，是否能在对应的时延要求下，成功传输到对端(UE)，比如判断数据包从UPF到DU的时间长度。如果无法满足要求，将丢弃数据包，从而节省传输资源(即执行有效性操作)。
其中：对于步骤62的数据包中不包含时间戳信息情况，则由无线接入网RAN侧保持有PDCP的网络实体CU(本示例中即步骤62中的CU)，添加一个时间戳信息(具体可为步骤62中的CU发送数据包的时间，可以用编号形式体现，关于编号对应的数据包发送与接收之间的时间差已知)到待传输的数据包中，随后转发给下面负责数据无线传输的功能实体DU。该信息可包含在GTP-U头中，或数据包的适配层中。后续处理与步骤63～64相同。
示例3：针对IAB网络架构下，节点之间的信息交互，所述发送节点以Donor-CU为例，所述另一发送节点以UPF为例，所述接收节点以Donor-DU为例。
具体可如图7所示，包括：
步骤71～73：Donor-CU实体，通过UE上下文建立或修改过程，配置IAB网络的各级DU(至少一个DU，多个的时候可为串联)实体，消息中携带某数据流或数据承载的QOS信息，例如时延相关参数；可选地，包含路由相关信息。
关于数据流或数据承载可根据需求确定。
步骤74：完成配置后，Donor-CU实体接收来自UPF的数据包(包含用户数据)，其中包含时间戳信息；
步骤75：Donor-CU实体将此时间戳信息通过用户面接口，例如F1接口，转发给下面负责数据无线传输的功能实体，例如Donor-DU。该时间戳信息包含在GTP-U头中。
步骤76：接收到此时间戳信息的功能实体，如：Donor-DU，可以结合步骤71传输的QOS信息，和路由相关信息，例如，结合其中时延相关参数，以及其他参变量(例如，到目标IAB节点的剩余跳数)等决定该数据包的调度策略1，确保数据包经过多跳IAB节点后到达UE的时延满足QOS的端到端要求。
比如：根据路由相关信息确定剩余路径长短、根据剩余跳数确定需要经过的剩余节点数量，根据剩余路径长短和剩余节点数量，确定传输优先级(比如剩的多，优先级高)；
根据QOS信息确定质量要求，根据质量要求确定对应质量的传输路径(比如稳定性高、传输速度快的路径)；
根据传输优先级和确定的传输路径，得到该数据包的调度策略。
步骤77～710：类似上面的步骤75～76(只是执行主体的转变)，分别执行该数据包的调度策略2和3，使得数据包经过多跳IAB节点后到达UE的时延满足QOS的端到端要求。其中该时间戳信息可包含在GTP-U头，或数据包的适配层中。
步骤711：最后一跳IAB node(IAB节点)发送用户数据给UE。本示例中的最后一跳IAB node即附图7中的IAB-node2。
其中：对于步骤74的数据包中不包含时间戳信息情况，则由无线接入网RAN侧保持有PDCP的网络实体Donor-CU(本示例中即步骤74中的CU)， 添加一个时间戳信息(具体可为步骤74中的CU发送数据包的时间，可以用编号形式体现，关于编号对应的数据包发送与接收之间的时间差已知)到待传输的数据包中，随后转发给下面负责数据无线传输的各级DU功能实体。该信息可包含在GTP-U头，或数据包的适配层中。后续处理与步骤75～711相同。
示例4：针对CU和DU分离的架构下，如何保证Survival time(生存时间)，所述发送节点以CU为例，所述另一发送节点以UPF为例，所述接收节点以DU为例。
具体可如图8所示，包括：
步骤81：CU实体，通过UE上下文建立或修改过程，配置DU实体，消息中携带某数据流或数据承载的QOS信息，例如时延相关参数，以及Survival time(生存时间)参数等。
关于数据流或数据承载可根据需求确定。
步骤82：完成配置后，CU实体接收来自UPF的数据包(包含用户数据)，其中包含时间戳信息(具体可包含UPF发送数据包的时间)。
步骤83：CU实体将此时间戳信息通过用户面接口，例如F1接口，转发给下面负责数据无线传输的功能实体DU。该时间戳信息包含在GTP-U头中。
步骤84：接收到此时间戳信息的功能实体DU，可以结合步骤81传输的QOS信息，例如其中时延相关参数，判断该数据传输是否进入Survival time，或者已超过Survival time(即执行生存时间判断)；具体地，在时间戳信息和QOS中的时延要求的时间内，该数据包无法被正确发出(没发出去，或者发出去没接收到确认响应)，标记为一次失败接收(从对端描述的)，开始Survival timer计时或计数。而当连续N次(Survival time(生存时间)参数)失败接收，或Survival timer超时时，即判断为数据传输超过Survival time。如果是前者(进入Survival time)，则开始进行调度或性能优化等操作，例如：允许先暂停suspend业务承载(即暂停数据传输，但配置依然存在)再恢复或重建业务承载等操作；而如果是后者(超过Survival time)，将直接触发该业务承载的释放等操作，并通过信令通知UE。
其中：对于步骤82的数据包中不包含时间戳信息情况，则由无线接入网 RAN侧保持有PDCP的网络实体CU(本示例中即步骤82中的CU)，添加一个时间戳信息(具体可为步骤82中的CU发送数据包的时间，可以用编号形式体现，关于编号对应的数据包发送与接收之间的时间差已知)到待传输的数据包中，随后转发给下面负责数据无线传输的功能实体DU。该信息包含在GTP-U头中。后续处理与步骤83～84相同。
由上可知，本公开实施例提供的方案主要涉及以下几点：
1)允许应用server，或UPF(核心网用户面网关)，或保持有PDCP的网络实体，增加时间戳信息到下行数据包里。
2)基于1)时间戳信息为相对某一个开始时间的时间值，以固定间隔为单位，例如1ms，或10ms等，而这个开始时间是指与某一个参考时间相对应的时间点，此参考时间点可以是GPS或其他卫星系统的某一个绝对时间，或是时间同步网络的某一个参考时间点。
3)可选地，基于1)这个时间戳信息为GPS或其他卫星系统的绝对时间，或是时间同步网络的参考时间信息。
4)基于2)或3)，对于应用server，该时间戳信息可以包含在应用数据包里，例如：专用的同步帧头中。
5)基于2)或3)，对于UPF或保持有PDCP的网络实体，该时间戳信息可以包含在GTP-U包头中。
6)基于4)或5)，负责数据无线传输的功能实体接收到此时间戳信息后，将执行数据包有效性判断操作，即如果该数据包无法满足时延要求，将丢弃数据包，从而节省传输资源。
7)基于4)或5)，在IAB网络下，负责数据无线传输的功能实体接收到此时间戳信息后，将优化调度算法，从而确保数据包的端到端传输时延被保证。
8)基于4)或5)，针对IIOT业务，负责数据无线传输的功能实体接收到此时间戳信息后，将执行存活时间判断，具体地，在时间戳信息和QOS中的时延要求的时间内，该数据包无法被正确发出，标记为一次失败接收，开始Survival timer计时或计数。而当连续N次(Survival time(生存时间)参数)失败接收，或Survival timer超时时，即判断为数据传输超过Survival time。 针对不同情况采用相应的性能优化和承载管理等操作。
综上，本公开实施例提供的方案，会使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标。
本公开实施例还提供了一种发送节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现以下步骤：
通过所述收发机向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
本公开实施例提供的所述发送节点通过所述收发机向接收节点发送数据包；其中，所述数据包中携带有时间戳信息；能够支撑接收节点根据时间戳信息对数据包进行处理，使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
具体可如图9所示，本公开实施例的发送节点，包括：
处理器91；以及通过总线接口92与所述处理器91相连接的存储器93，所述存储器93用于存储所述处理器91在执行操作时所使用的程序和数据，当处理器91调用并执行所述存储器93中所存储的程序和数据时，执行下列过程：
通过所述收发机94向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
其中，收发机94与总线接口92连接，用于在处理器91的控制下接收和发送数据。
需要说明的是，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器91代表的一个或多个处理器和存储器93代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知地，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机94可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器91负责管理总线架构和通常的处理，存储器93可以存储处理器91在执行操作时所使用的数据。
本领域技术人员可以理解，实现上述实施例的全部或者部分步骤可以通过硬件来完成，也可以通过计算机程序来指示相关的硬件来完成，所述计算机程序包括执行上述方法的部分或者全部步骤的指令；且该计算机程序可以存储于一可读存储介质中，存储介质可以是任何形式的存储介质。
其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
进一步地，所述处理器还用于：在向接收节点发送数据包之前，通过所述收发机接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者通过所述收发机接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
其中，上述发送节点侧的数据传输方法的所述实现实施例均适用于该发送节点的实施例中，也能达到对应相同的技术效果。
本公开实施例还提供了一种接收节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现以下步骤：
通过所述收发机接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
根据所述时间戳信息对所述数据包进行处理。
本公开实施例提供的所述接收节点通过所述收发机接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；根据所述时间戳信息对所述数据包进行处理；能够使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
具体可如图10所示，本公开实施例的接收节点，包括：
处理器101；以及通过总线接口102与所述处理器101相连接的存储器103，所述存储器103用于存储所述处理器101在执行操作时所使用的程序和数据，当处理器101调用并执行所述存储器103中所存储的程序和数据时，执行下列过程：
通过所述收发机104接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
根据所述时间戳信息对所述数据包进行处理。
其中，收发机104与总线接口102连接，用于在处理器101的控制下接收和发送数据。
需要说明的是，在图10中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器101代表的一个或多个处理器和存储器103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知地，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机104可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器101负责管理总线架构和通常的处理，存储器103可以存储处理器101在执行操作时所使用的数据。
本领域技术人员可以理解，实现上述实施例的全部或者部分步骤可以通过硬件来完成，也可以通过计算机程序来指示相关的硬件来完成，所述计算机程序包括执行上述方法的部分或者全部步骤的指令；且该计算机程序可以存储于一可读存储介质中，存储介质可以是任何形式的存储介质。
进一步地，所述处理器还用于：在接收发送节点发送的数据包之前，与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；对应地，所述处理器具体用于：根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
本公开实施例中关于针对数据包的处理提供以下三种示例，但并不以此为限：
第一种示例，所述处理器具体用于：根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；若不满足，则丢弃所述数据包。
第二种示例，所述处理器具体用于：根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；根据所述调度策略，对所述数据包进行传输。
其中，所述处理器具体用于：与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；对应地，所述处理器具体用于：根据所述时间戳信息、服务质量信息以及路由信息，确定所述数 据包的调度策略。
具体地，所述处理器具体用于：根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
其中，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
第三种示例，所述处理器具体用于：根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；根据判断结果进行处理操作。
其中，所述处理器具体用于：若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；若所述判断结果为否，则执行调度调整操作。
进一步地，所述处理器还用于：在判断所述数据包的数据传输是否超过了对应的生存时间之前，若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
其中，所述处理器具体用于：与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
具体地，所述处理器具体用于：判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
更具体地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
本公开实施例中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为 时间同步网络的参考时间信息。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
更具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
其中，上述接收节点侧的数据传输方法的所述实现实施例均适用于该接收节点的实施例中，也能达到对应相同的技术效果。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述发送节点侧的数据传输方法的步骤；或者
该程序被处理器执行时实现上述接收节点侧的数据传输方法的步骤。
其中，上述发送节点侧或接收节点侧的数据传输方法的所述实现实施例均适用于该计算机可读存储介质的实施例中，也能达到对应相同的技术效果。
本公开实施例还提供了一种数据传输装置，应用于发送节点，如图11所示，包括：
第一发送模块111，用于向接收节点发送数据包；
其中，所述数据包中携带有时间戳信息。
本公开实施例提供的所述数据传输装置通过向接收节点发送数据包；其中，所述数据包中携带有时间戳信息；能够支撑接收节点根据时间戳信息对数据包进行处理，使得参与DRB承载duplication的各条链路，进一步提高无线资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的 问题。
其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
进一步地，所述数据传输装置还包括：第一接收模块，用于在向接收节点发送数据包之前，接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
其中，上述发送节点侧的数据传输方法的所述实现实施例均适用于该数据传输装置的实施例中，也能达到相同的技术效果。
本公开实施例还提供了一种数据传输装置，应用于接收节点，如图12所示，包括：
第二接收模块121，用于接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
第一处理模块122，用于根据所述时间戳信息对所述数据包进行处理。
本公开实施例提供的所述数据传输装置通过接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；根据所述时间戳信息对所述数据包进行处理；能够使得参与DRB承载duplication的各条链路，进一步提高无线 资源的使用效率；而针对IAB网络，多跳的情况下，能够使负责数据无线传输的各个功能实体及时而精确地调度数据，确保总的QOS需求，提升传输效率，解决IAB网络多跳调度问题；此外，针对IIOT业务，使得负责数据无线传输的功能实体进一步确保Survival time(生存时间)性能指标；实现进一步优化传输性能，针对DRB的duplication机制以及IAB网络的调度机制，能够解决一些浪费无线资源以及QOS要求难以确保的问题，从而大大提升5G网络的性能指标；很好的解决了相关技术中数据传输方案的传输性能差的问题。
进一步地，所述数据传输装置还包括：第二处理模块，用于在接收发送节点发送的数据包之前，与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；对应地，所述第一处理模块，包括：第一处理子模块，用于根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
本公开实施例中关于针对数据包的处理提供以下三种示例，但并不以此为限：
第一种示例，所述第一处理子模块，包括：第一判断单元，用于根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；第一处理单元，用于若不满足，则丢弃所述数据包。
第二种示例，所述第一处理子模块，包括：第一确定单元，用于根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；第二处理单元，用于根据所述调度策略，对所述数据包进行传输。
其中，所述第二处理模块，包括：第二处理子模块，用于与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；对应地，所述第二处理单元，包括：第一确定子单元，用于根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
具体地，所述第一确定子单元，具体用于：根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
其中，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
第三种示例，所述第一处理子模块，包括：第二确定单元，用于根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；第二判断单元，用于若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；第三处理单元，用于根据判断结果进行处理操作。
其中，所述第三处理单元具体用于：若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；若所述判断结果为否，则执行调度调整操作。
进一步地，所述数据传输装置还包括：第三处理模块，用于在判断所述数据包的数据传输是否超过了对应的生存时间之前，若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
其中，所述第二处理模块，包括：第三处理子模块，用于与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
具体地，所述第二判断单元：第一判断子单元，用于判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
更具体地，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
本公开实施例中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；其中，所述预设开始时间是指与预设参考时间相对应的时间点；所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
也可以是，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
具体地，所述时间戳信息包含在应用数据包中；或者所述时间戳信息包 含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者所述时间戳信息包含在所述数据包的适配层中。
更具体地，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
其中，上述接收节点侧的数据传输方法的所述实现实施例均适用于该数据传输装置的实施例中，也能达到相同的技术效果。
需要说明的是，此说明书中所描述的许多功能部件都被称为模块/子模块/单元/子单元，以便更加特别地强调其实现方式的独立性。
本公开实施例中，模块/子模块/单元/子单元可以用软件实现，以便由各种类型的处理器执行。举例来说，一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块，举例来说，其可以被构建为对象、过程或函数。尽管如此，所标识模块的可执行代码无需物理地位于一起，而是可以包括存储在不同位里上的不同的指令，当这些指令逻辑上结合在一起时，其构成模块并且实现该模块的规定目的。
实际上，可执行代码模块可以是单条指令或者是许多条指令，并且甚至可以分布在多个不同的代码段上，分布在不同程序当中，以及跨越多个存储器设备分布。同样地，操作数据可以在模块内被识别，并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集，或者可以分布在不同位置上(包括在不同存储设备上)，并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时，考虑到相关技术中的硬件工艺的水平，所以可以以软件实现的模块，在不考虑成本的情况下，本领域技术人员都可以搭建对应的硬件电路来实现对应的功能，所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的相关技术中的半导体或者是其它分立的元件。模块还可以用可编程硬件设备，诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一 个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
以上所述的是本公开的可选的实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述原理前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (49)

  1. 一种数据传输方法，应用于发送节点，包括：
    向接收节点发送数据包；
    其中，所述数据包中携带有时间戳信息。
  2. 根据权利要求1所述的数据传输方法，其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
    其中，所述预设开始时间是指与预设参考时间相对应的时间点；
    所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
  3. 根据权利要求1所述的数据传输方法，其中，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
  4. 根据权利要求1所述的数据传输方法，其中，所述时间戳信息包含在应用数据包中；或者
    所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
    所述时间戳信息包含在所述数据包的适配层中。
  5. 根据权利要求1所述的数据传输方法，其中，在向接收节点发送数据包之前，还包括：
    接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者
    接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
  6. 根据权利要求1所述的数据传输方法，其中，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
  7. 一种数据传输方法，应用于接收节点，包括：
    接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
    根据所述时间戳信息对所述数据包进行处理。
  8. 根据权利要求7所述的数据传输方法，在接收发送节点发送的数据包之前，还包括：
    与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；
    所述根据所述时间戳信息对所述数据包进行处理，包括：
    根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
  9. 根据权利要求8所述的数据传输方法，其中，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
    根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；
    若不满足，则丢弃所述数据包。
  10. 根据权利要求8所述的数据传输方法，其中，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
    根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；
    根据所述调度策略，对所述数据包进行传输。
  11. 根据权利要求10所述的数据传输方法，其中，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：
    与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；
    所述根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略，包括：
    根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
  12. 根据权利要求11所述的数据传输方法，其中，所述根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略，包括：
    根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；
    其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
  13. 根据权利要求12所述的数据传输方法，其中，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
  14. 根据权利要求8所述的数据传输方法，其中，所述根据所述时间戳信息和服务质量信息，对所述数据包进行处理，包括：
    根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；
    若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；
    根据判断结果进行处理操作。
  15. 根据权利要求14所述的数据传输方法，其中，所述根据判断结果进行处理操作，包括：
    若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；
    若所述判断结果为否，则执行调度调整操作。
  16. 根据权利要求14所述的数据传输方法，在判断所述数据包的数据传输是否超过了对应的生存时间之前，还包括：
    若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
  17. 根据权利要求14所述的数据传输方法，其中，所述与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息，包括：
    与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
  18. 根据权利要求14所述的数据传输方法，其中，所述判断所述数据包的数据传输是否超过了对应的生存时间，包括：
    判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者
    判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
  19. 根据权利要求14至18任一项所述的数据传输方法，其中，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
  20. 根据权利要求7所述的数据传输方法，其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
    其中，所述预设开始时间是指与预设参考时间相对应的时间点；
    所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
  21. 根据权利要求7所述的数据传输方法，其中，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
  22. 根据权利要求7所述的数据传输方法，其中，所述时间戳信息包含在应用数据包中；或者
    所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
    所述时间戳信息包含在所述数据包的适配层中。
  23. 根据权利要求7所述的数据传输方法，其中，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
  24. 一种发送节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；其中，所述处理器执行所述程序时实现以下步骤：
    通过所述收发机向接收节点发送数据包；
    其中，所述数据包中携带有时间戳信息。
  25. 根据权利要求24所述的发送节点，其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
    其中，所述预设开始时间是指与预设参考时间相对应的时间点；
    所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
  26. 根据权利要求24所述的发送节点，其中，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
  27. 根据权利要求24所述的发送节点，其中，所述时间戳信息包含在应用数据包中；或者
    所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
    所述时间戳信息包含在所述数据包的适配层中。
  28. 根据权利要求24所述的发送节点，其中，所述处理器还用于：
    在向接收节点发送数据包之前，通过所述收发机接收另一发送节点发送的所述数据包；其中，所述数据包中携带有所述时间戳信息，所述时间戳信息为所述另一发送节点发送所述数据包的发送时间信息；或者
    通过所述收发机接收另一发送节点发送的初始数据包，并在所述初始数据包中添加所述时间戳信息，形成所述数据包；其中，所述时间戳信息为所述发送节点发送所述数据包的发送时间信息。
  29. 根据权利要求24所述的发送节点，其中，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连接状态中的主节点或5G架构中的集中单元CU。
  30. 一种接收节点，包括存储器、处理器、收发机及存储在所述存储器上并可在所述处理器上运行的计算机程序；其中，所述处理器执行所述程序时实现以下步骤：
    通过所述收发机接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
    根据所述时间戳信息对所述数据包进行处理。
  31. 根据权利要求30所述的接收节点，其中，所述处理器还用于：
    在接收发送节点发送的数据包之前，与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息；
    所述处理器具体用于：
    根据所述时间戳信息和服务质量信息，对所述数据包进行处理。
  32. 根据权利要求31所述的接收节点，其中，所述处理器具体用于：
    根据所述时间戳信息和服务质量信息，判断所述数据包是否满足时延要求；
    若不满足，则丢弃所述数据包。
  33. 根据权利要求31所述的接收节点，其中，所述处理器具体用于：
    根据所述时间戳信息和服务质量信息，确定所述数据包的调度策略；
    根据所述调度策略，对所述数据包进行传输。
  34. 根据权利要求33所述的接收节点，其中，所述处理器具体用于：
    与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和路由信息；
    所述处理器具体用于：
    根据所述时间戳信息、服务质量信息以及路由信息，确定所述数据包的调度策略。
  35. 根据权利要求34所述的接收节点，其中，所述处理器具体用于：
    根据所述时间戳信息、服务质量信息、路由信息以及预设参变量信息，确定所述数据包的调度策略；
    其中，所述预设参变量信息包含用于指示所述数据包当前所处的传输状态的指示信息。
  36. 根据权利要求35所述的接收节点，其中，所述指示信息包含所述数据包距离到达目标节点的剩余跳数。
  37. 根据权利要求31所述的接收节点，其中，所述处理器具体用于：
    根据所述时间戳信息和服务质量信息，确定所述数据包是否被正确发出；
    若未被正确发出，则判断所述数据包的数据传输是否超过了对应的生存时间；
    根据判断结果进行处理操作。
  38. 根据权利要求37所述的接收节点，其中，所述处理器具体用于：
    若所述判断结果为是，则触发所述数据包的当前业务承载的释放，并通知终端；
    若所述判断结果为否，则执行调度调整操作。
  39. 根据权利要求37所述的接收节点，其中，所述处理器还用于：
    在判断所述数据包的数据传输是否超过了对应的生存时间之前，若所述数据包在当前业务承载上首次未被正确发出，则进入所述数据包的数据传输的生存时间，并开始进行调度调整操作。
  40. 根据权利要求37所述的接收节点，其中，所述处理器具体用于：
    与所述发送节点之间进行终端上下文建立或修改，得到所述数据包的服务质量信息和所述数据包的数据传输的生存时间。
  41. 根据权利要求37所述的接收节点，其中，所述处理器具体用于：
    判断所述数据包在当前业务承载上首次未被正确发出后的预设时段内，是否持续未被正确发出；或者
    判断所述数据包在当前业务承载上首次未被正确发出后持续未被正确发出的次数是否达到预设阈值。
  42. 根据权利要求37至41任一项所述的接收节点，其中，所述数据包未被正确发出是指在所述服务质量信息中的时延要求时长内所述数据包未被发送出去，或者在所述服务质量信息中的时延要求时长内所述数据包被发送出去，但未接收到针对所述数据包的确认响应。
  43. 根据权利要求30所述的接收节点，其中，所述时间戳信息为相对于预设开始时间的时间值，以固定时间间隔为单位；
    其中，所述预设开始时间是指与预设参考时间相对应的时间点；
    所述预设参考时间为位置定位系统的预设绝对时间，或者，为时间同步网络的预设参考时间点。
  44. 根据权利要求30所述的接收节点，其中，所述时间戳信息为位置定位系统的绝对时间信息，或者，为时间同步网络的参考时间信息。
  45. 根据权利要求30所述的接收节点，其中，所述时间戳信息包含在应用数据包中；或者
    所述时间戳信息包含在所述数据包的通用分组无线业务隧道协议-数据传输GTP-U包头中；或者
    所述时间戳信息包含在所述数据包的适配层中。
  46. 根据权利要求30所述的接收节点，其中，所述发送节点为应用服务器、核心网用户面网关、具备分组数据汇聚协议PDCP层的网络实体、双连 接状态中的主节点或5G架构中的集中单元CU。
  47. 一种计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现如权利要求1至6任一项所述的数据传输方法的步骤；或者
    该程序被处理器执行时实现如权利要求7至23任一项所述的数据传输方法的步骤。
  48. 一种数据传输装置，应用于发送节点，包括：
    第一发送模块，用于向接收节点发送数据包；
    其中，所述数据包中携带有时间戳信息。
  49. 一种数据传输装置，应用于接收节点，包括：
    第二接收模块，用于接收发送节点发送的数据包；其中，所述数据包中携带有时间戳信息；
    第一处理模块，用于根据所述时间戳信息对所述数据包进行处理。
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