WO2019062725A1 - 一种上行数据传输方法及装置 - Google Patents

一种上行数据传输方法及装置 Download PDF

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Publication number
WO2019062725A1
WO2019062725A1 PCT/CN2018/107401 CN2018107401W WO2019062725A1 WO 2019062725 A1 WO2019062725 A1 WO 2019062725A1 CN 2018107401 W CN2018107401 W CN 2018107401W WO 2019062725 A1 WO2019062725 A1 WO 2019062725A1
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WIPO (PCT)
Prior art keywords
pdu
air interface
sequence number
interface path
access network
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PCT/CN2018/107401
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English (en)
French (fr)
Inventor
叶朝岭
刘成伟
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华为技术有限公司
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Publication of WO2019062725A1 publication Critical patent/WO2019062725A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an uplink data transmission method and apparatus.
  • the 3rd generation partnership project (3GPP) Radio Access Network 2 introduces packet duplication function in new radio (NR) to increase data transmission. reliability.
  • the packet copy function means that the terminal copies a plurality of protocol data unit (PDU) based on a packet data convergence protocol (PDCP), and then copies the original multiple PDCP PDUs and multiple copies.
  • PDU protocol data unit
  • PDCP packet data convergence protocol
  • the PDCP PDUs are sent to the access network in parallel through two different air interface transmission paths, so that when the PDCP PDU sent by the terminal through the first air interface transmission path is not delivered to the access network, the access network can receive the terminal through the second
  • the PDCP PDU sent by the air interface transmission path increases the reliability of data transmission.
  • the terminal when the terminal sends a PDCP PDU to the access network based on the packet replication function, the two air interface transmission paths are transmitted independently and in parallel, so that when a certain PDCP PDU sent through the first air interface transmission path has arrived at the access network, the terminal remains The PDCP PDU is sent to the access network through the second air interface transmission path, causing waste of air interface resources and increasing terminal power consumption.
  • the present invention provides an uplink data transmission method and apparatus, which solves the problem of waste of air interface resources caused by the packet replication technology based on the packet replication technology and the power consumption of the terminal is large.
  • the present application provides an uplink data transmission method, the method comprising: transmitting a PDCP PDU to the access network on a first air interface path in a packet replication mode in response to a first scheduling grant from an access network.
  • the first scheduling authorization corresponds to the first air interface path
  • the first transmission record recorded on the first air interface path is recorded.
  • the foregoing solution provides an uplink data transmission method, which is applied to the packet replication mode.
  • the terminal device in the embodiment of the present application transmits the PDCP PDU independently and in parallel through the two air interface paths in the packet replication mode.
  • the device can coordinate the two air interface paths according to the transmission records of the two air interface paths. If one of the air interface paths successfully receives the message for a certain PDU, the other air interface path does not need to send the PDU again, so that the terminal device can be effectively avoided.
  • Sending the PDU that has been confirmed by the access network can reduce the redundant transmission of the terminal device, thereby improving the utilization of the air interface resources, avoiding the waste of bandwidth, and reducing the power consumption of the terminal device.
  • the determining that the at least one to-be-transmitted PDU can obtain the at least one to-be-transmitted PDU by adjusting a second transmission record on the second air interface path according to the first transmission record.
  • the second transmission record is adjusted by the first transmission record to coordinate the two air interface paths, which can effectively prevent the terminal device from repeatedly transmitting the PDUs that have been confirmed by the access network, thereby reducing redundant transmission of the terminal device, thereby Improve the utilization of air interface resources and avoid bandwidth waste, and reduce the power consumption of terminal devices.
  • the first transmission record may include: a sequence number of the first PDU and a channel that has been sent on the first air interface path after the first PDU and is not accessed by the a sequence number of the PDU confirmed by the network, and a sequence number of the second PDU and a sequence number of the PDU not transmitted on the first air interface path after the second PDU; wherein the first PDU is already in use a next PDU of the last PDU transmitted on the first air interface path and confirmed by the access network, the second PDU being the next PDU of the last PDU that has been sent on the first air interface path
  • the sequence number of the first PDU is less than or equal to the sequence number of the second PDU.
  • the second transmission record may include: a sequence number of the third PDU and a sequence number of the PDU that has been sent on the second air interface path after the third PDU and is not confirmed by the access network, And a sequence number of the fourth PDU and a sequence number of the PDU that is not transmitted on the second air interface path after the fourth PDU; wherein the third PDU is sent on the second air interface path And the next PDU of the last PDU confirmed by the access network, the fourth PDU being the next PDU of the last PDU that has been sent on the second air interface path, the sequence of the third PDU The number is less than or equal to the serial number of the fourth PDU.
  • the PDU that has been confirmed by the access network can be determined by using the first transmission record and the second transmission record, so that the terminal device can be prevented from repeatedly transmitting the PDU that has been confirmed by the access network, thereby effectively reducing redundant transmission of the terminal device.
  • the utilization of air interface resources can be improved and bandwidth waste can be avoided, and the power consumption of the terminal device can be reduced.
  • adjusting the second transmission record on the second air interface path according to the first transmission record to obtain at least one to-be-transmitted PDU may include: the sequence number of the first PDU is greater than When the sequence number of the third PDU is smaller than the sequence number of the fourth PDU, the PDU corresponding to the sequence number between the sequence number of the third PDU and the sequence number of the first PDU, and After the first PDU, the first transmission record indicates that the PDU that has been confirmed by the access network is released; then the sequence number of the third PDU is adjusted to the sequence number of the first PDU; A PDU corresponding to at least one sequence number starting from a sequence number of the fourth PDU is determined as the at least one to-be-transmitted PDU.
  • the transmission method of the terminal device on the two air interface paths is the same. The difference is that the signal quality of the air interface resources of the two air interface paths is different, and the PDU transmission speed of the two air interface paths is different.
  • the second air interface path does not need to send the PDU again, thereby reducing redundant transmission of the terminal device, avoiding bandwidth waste, and reducing power consumption of the terminal device.
  • adjusting the second transmission record on the second air interface path according to the first transmission record to obtain at least one to-be-transmitted PDU may include: the sequence number of the first PDU is greater than When the sequence number of the fourth PDU is described, the PDU corresponding to the sequence number preceding the sequence number of the first PDU, and after the first PDU, the first transmission record indication has been used by the access network Confirming the PDU to release; then adjusting the sequence number of the third PDU and the sequence number of the fourth PDU to the sequence number of the first PDU; thereafter, at least one starting from the sequence number of the fourth PDU The PDU corresponding to the serial number is determined as the at least one PDU to be transmitted.
  • the second air interface path does not need to send the PDU again, thereby reducing redundant transmission of the terminal device and avoiding bandwidth waste.
  • the power consumption of the terminal device can be reduced.
  • the at least one to-be-transmitted PDU may also be determined according to the first transmission record.
  • the first transmission record may include: a sequence number of a PDU that has been sent on the first air interface path and is not acknowledged by the access network, and is not sent on the first air interface path.
  • the serial number of the PDU Specifically, the next PDU of the last PDU that has been sent on the second air interface path is determined for the second air interface path. Then, in response to the second scheduling grant, based on the first transmission record, the PDU corresponding to the at least one sequence number starting from the determined sequence number corresponding to the PDU is determined to be the at least one to-be-transmitted PDU.
  • the second air interface path does not need to send the PDU again, thereby reducing redundant transmission of the terminal device and avoiding bandwidth waste.
  • the power consumption of the terminal device can be reduced.
  • At least one scheduling grant predicting a total number of PDUs to be sent on the second air interface path in response to the second scheduling grant, wherein the at least one scheduling grant corresponds to the second air interface path, and each The number of PDUs to be sent is included in the scheduling grant; then the total number of PDUs are generated for the second air interface path, and the at least one to-be-transmitted PDU on the second air interface path in the packet replication mode is determined. It is based on the total number of PDUs.
  • the terminal device Compared with the prior art, the terminal device generates the PDU after receiving the authorization command.
  • the terminal device may pre-generate the PDU according to the air interface quality of the second air interface path before receiving the authorization command, so that the terminal device may not generate the PDU.
  • the transmission delay caused by the generation of the PDU can be reduced.
  • the embodiment of the present application provides an uplink data transmission apparatus, where the apparatus includes: a first sending module, configured to respond to a first scheduling authorization from an access network, and use a first air interface path in a packet replication mode. Transmitting, to the access network, a protocol data unit PDU of the packet data convergence protocol (PDCP), the first scheduling authorization is corresponding to the first air interface path, and the first recording module is configured to record on the first air interface path And a second sending module, configured to determine at least one to-be-transmitted PDU on the second air interface path in the packet replication mode, in response to the second scheduling grant from the access network, where The PDU that has been confirmed by the access network indicated by the first transmission record recorded by the first recording module is excluded from the at least one to-be-transmitted PDU, and the second scheduling authorization corresponds to the second And the at least one to-be-transmitted PDU determined by the determining module is sent to the access network on the second air interface path.
  • PDCP packet data convergence protocol
  • the device further includes a second recording module; the second recording module is configured to record a second transmission record on the second air interface path; the second sending module is in When the at least one PDU to be sent is determined, the method is specifically configured to: adjust the second sending record recorded by the second recording module according to the first sending record recorded by the first recording module to obtain the at least one to be sent. PDU.
  • the first transmission record includes: a sequence number of the first PDU and a channel that has been sent on the first air interface path after the first PDU, and is not in the access network a sequence number of the confirmed PDU, and a sequence number of the second PDU and a sequence number of the PDU not transmitted on the first air interface path after the second PDU; wherein the first PDU is already in the a next PDU of the last PDU transmitted on the first air interface path and confirmed by the access network, the second PDU being the next PDU of the last PDU that has been sent on the first air interface path, The sequence number of the first PDU is less than or equal to the sequence number of the second PDU; the second transmission record includes: a sequence number of the third PDU and a second air interface path after the third PDU a sequence number of the PDU transmitted and not confirmed by the access network, and a sequence number of the fourth PDU and a sequence number of the PDU not transmitted on the second air interface path after the fourth PDU;
  • the third PDU is
  • the second sending module is configured to adjust the second sending record recorded by the second recording module according to the first sending record recorded by the first recording module to obtain the
  • the third PDU is a PDU corresponding to a sequence number between the serial number and the sequence number of the first PDU, and a PDU after the first PDU, the first transmission record indicating that the access network has been confirmed by the access network;
  • the sequence number of the third PDU is adjusted to the sequence number of the first PDU; the PDU corresponding to at least one sequence number starting from the sequence number of the fourth PDU is determined as the at least one to-be-transmitted PDU.
  • the second sending module is configured to adjust the second sending record recorded by the second recording module according to the first sending record recorded by the first recording module to obtain the When at least one PDU to be sent is used, when the sequence number of the first PDU is greater than the sequence number of the fourth PDU, the PDU corresponding to the sequence number before the sequence number of the first PDU, and After the first PDU, the first transmission record indicates that the PDU that has been confirmed by the access network is released; and the sequence number of the third PDU and the sequence number of the fourth PDU are adjusted to the first a sequence number of the PDU; a PDU corresponding to at least one sequence number starting from the sequence number of the fourth PDU is determined as the at least one PDU to be transmitted.
  • the apparatus further includes a pre-generation module; the pre-generation module, configured to: before the second sending module is responsive to the second scheduling authorization from the access network, according to At least one scheduling grant from the access network before the second scheduling grant, predicting a total number of PDUs to be sent on the second air interface path in response to the second scheduling grant, wherein the at least one The scheduling authorization corresponds to the second air interface path, and each scheduling authorization includes the number of PDUs to be sent; and the total number of PDUs is generated for the second air interface path, where the determining is in the packet replication mode. At least one to-be-transmitted PDU on the next second air interface path is based on the total number of PDUs.
  • an embodiment of the present application further provides an uplink data transmission device, where the device includes a memory and a processor, the memory is configured to store a software program, and the processor is configured to read software stored in the memory.
  • the device includes a memory and a processor
  • the memory is configured to store a software program
  • the processor is configured to read software stored in the memory.
  • the embodiment of the present application further provides a computer readable storage medium, where the program is stored in a computer readable storage medium, and the program can implement the first aspect when read and executed by one or more processors or The method of any of the above first aspects is designed.
  • an embodiment of the present application provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method described in any one of the above first aspect or the first aspect.
  • FIG. 1 is a schematic structural diagram of a communication system provided by the present application.
  • FIG. 2 is a schematic diagram of a packet replication mode provided by the present application.
  • FIG. 3 is a schematic flowchart diagram of an uplink data transmission method provided by the present application.
  • FIG. 4 is a schematic diagram of a PDU generation method provided by the present application.
  • FIG. 5 is a schematic diagram of a method for determining a to-be-transmitted PDU according to the present application
  • FIG. 6 is a schematic diagram of another method for determining a to-be-transmitted PDU according to the present application.
  • FIG. 7 is a schematic diagram of another method for determining a to-be-transmitted PDU according to the present application.
  • FIG. 8 is a schematic structural diagram of an uplink data transmission device provided by the present application.
  • FIG. 9 is a schematic structural diagram of an uplink data transmission apparatus provided by the present application.
  • the uplink data transmission method provided by the present application can be applied to a communication system adopting a packet replication mode.
  • the architecture of the communication system adopting the packet replication mode is as shown in FIG. 1 , including an access network and a terminal device, and an uplink data transmission and a downlink data transmission between the access network and the terminal device.
  • the terminal device performs uplink data transmission based on scheduling information sent by the network device.
  • the communication system involved in the embodiments of the present application may be various types of communication systems, for example, may be long term evolution (LTE), may be a fifth generation (5G) communication system, or may be a hybrid architecture of LTE and 5G.
  • LTE long term evolution
  • 5G fifth generation
  • the access network may be an ordinary base station (such as a Node B or an eNB), may be a new radio controller (NR controller), may be a gNode B (gNB) in a 5G system, and may be centralized.
  • a centralized unit which may be a new wireless base station, may be a radio remote module, may be a micro base station, may be a relay, may be a distributed network element, or may be a receiving point (Transmission) A reception point (TRP) or a transmission point (TP) or any other wireless access device, but the embodiment of the present application is not limited thereto.
  • the access network includes at least one base station, wherein each base station can cover one or more cells.
  • a terminal device also called a User Equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • UE User Equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • the terminal device when the terminal device transmits a protocol data unit (PDU) of a packet data convergence protocol (PDCP) to the access network by using a packet replication technology, the terminal device waits for a packet data convergence protocol (PDCP) protocol data unit (PDU).
  • PDU packet data convergence protocol
  • the plurality of PDCP PDUs that are sent are copied, and then the original multiple PDCP PDUs and the multiple PDCP PDUs that are copied are separately transmitted to the access network independently in parallel on the air interface resources of the two cells covered by the access network. Since the signal quality of the air interface resources of the two cells is different, the PDU transmission speed of the two cells may be different.
  • the present application provides an uplink data transmission method and apparatus, which can be applied to the terminal device.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.
  • Packet replication mode In the uplink transmission, the terminal device copies multiple PDCP PDUs, and then transmits the original multiple PDCP PDUs and the multiple PDCP PDUs that are copied to the access network through two different air interface paths, that is, The air interface resources of different cells are transmitted to the access network in parallel.
  • Air interface path the air interface resource of the cell.
  • the two air interface paths in the packet replication mode are different in the cell, so the radio link control (RLC) entity and the logical channel of the two air interface paths are different, as shown in FIG. 2 .
  • the cells in which the two air interface paths are located may belong to the same base station under the access network, or may belong to two different base stations in the access network respectively. Therefore, the RLC entities of the two air interface paths may belong to the same A cell group (CG) may also belong to different CGs. All cells covered by the same base station are a combination of cells. When two air interface paths belong to the same cell combination, the terminal device communicates with the same base station on two air interface paths. When two air interface paths do not belong to the same cell combination, the terminal device communicates with the two base stations on two air interface paths.
  • CG cell group
  • Scheduling authorization When the terminal device needs to transmit uplink data to the access network, it sends a scheduling request (SR) to the access network. Therefore, after receiving the SR, the access network allocates resources for transmitting the uplink data to the terminal device, and notifies the terminal device by using an uplink grant authorization (UL grant), that is, the UL grant indicates the time frequency that the terminal device can use to transmit data. Resources, and the number of PDCP PDUs that the terminal device needs to transmit, and so on.
  • SR scheduling request
  • UL grant uplink grant authorization
  • the plurality referred to in the present application means two or more.
  • FIG. 3 it is a flowchart of an uplink data transmission method provided by the present application.
  • the method can be applied to the communication system shown in Figure 1, the method comprising:
  • the access network (such as a base station) sends a first scheduling authorization to the terminal device, where the first scheduling authorization corresponds to the first air interface path in the packet replication mode, that is, the first scheduling authorization may authorize the terminal device to be in the first air interface.
  • the protocol data unit PDU of the packet data convergence protocol PDCP is transmitted on the path.
  • the two air interface paths can be selectively used to connect the terminal equipment and the same base station or two base stations in the access network. For example, in the case where two air interface paths belong to the same cell combination, the access network that communicates with the terminal device is the same base station; and for the case where two air interface paths belong to a non-same cell combination, the access network that communicates with the terminal device Includes multiple base stations.
  • the terminal device sends a PDCP PDU to the access network on the first air interface path in response to the first scheduling grant.
  • the terminal device records a first transmission record on the first air interface path.
  • the first transmission record is used to enable the terminal device to determine the PDU that has been confirmed by the access network.
  • the first transmission record may include a sequence number of the PDU that the access network feeds back the successfully received message on the first air interface path; and may also include: a PDU that has been sent on the first air interface path and is not confirmed by the access network.
  • an identifier of the PDU that is not sent on the first air interface path may include: an identifier of the PDU that has been sent on the first air interface path and is not confirmed by the access network, and the identifier that has been sent on the first air interface path
  • the sequence number of the next PDU of the last PDU may also include other content, which is not specifically limited herein.
  • the access network sends a second scheduling authorization to the terminal device, where the second scheduling authorization corresponds to the second air interface path in the packet replication mode, that is, the second scheduling authorization may authorize the terminal device to be in the first
  • the PDCP PDU is transmitted on the second air interface path.
  • the second scheduling authorization box that delivers the first scheduling authorization box is a different base station in the access network.
  • the second scheduling authorization box that delivers the first scheduling authorization box is the same base station in the access network.
  • the terminal device determines, according to the second scheduling authorization, at least one to-be-transmitted PDU to be sent to the access network on the second air interface path, where the at least one to-be-transmitted PDU is excluded. a PDU that has been acknowledged by the access network indicated by the first transmission record.
  • the terminal device may determine, according to the first transmission record, the PDU that has been confirmed by the access network, and then determine whether there is a PDU that has not been confirmed by the access network in the PDU that is not sent on the second air interface path. If yes, the PDU is deleted, and then the terminal device determines that at least one of the PDUs that are not transmitted on the second air interface path after the deletion is the at least one to-be-transmitted PDU.
  • the terminal device sends the at least one to-be-transmitted PDU to the access network on the second air interface path according to a packet replication manner.
  • the terminal device can coordinate the two air interface paths according to the transmission records of the two air interface paths, if the terminal device independently transmits the PDCP PDUs in parallel through the two air interface paths in the packet replication mode. If one of the air interface paths successfully receives the message for a certain PDU, the other air interface path does not need to send the PDU again, so that the terminal device can be repeatedly prevented from repeatedly transmitting the PDU that has been confirmed by the access network, thereby reducing the redundancy of the terminal device. Sending, in turn, can improve the utilization of air interface resources, avoid bandwidth waste, and reduce the power consumption of the terminal device.
  • the sequence number of the next PDU of the last PDU that has been sent on the first air interface path and confirmed by the access network is collectively referred to as NextAckSn1, which will be described above.
  • the sequence number of the next PDU of the last PDU transmitted on the first air interface path is collectively referred to as NextTxSn1, where NextAckSn1 is less than or equal to NextTxSn1.
  • the sequence number of the next PDU of the last PDU that has been sent on the second air interface path and confirmed by the access network is collectively referred to as NextAckSn2, and the last transmission has been sent on the second air interface path.
  • the sequence number of the next PDU of a PDU is collectively referred to as NextTxSn2, where NextAckSn2 is less than or equal to NextTxSn2.
  • the terminal device may send a first scheduling request to the access network before responding to the first scheduling authorization of the access network, where the first scheduling request is used to request to send to the access network by using the first air interface path.
  • the PDU then receives the first scheduling grant that is sent by the access network after the first scheduling request, and the first scheduling grant carries the sending time and the number of PDUs that need to be sent. Then, when the sending time carried by the first scheduling grant is reached, the PDU is sent to the access network on the first air interface path.
  • the first scheduling request may carry the number of all untransmitted PDUs of the first air interface path, and the number of all untransmitted PDUs of the first air interface path is an internet protocol (IP) layer cache.
  • IP internet protocol
  • the number of service data units (SDUs) is such that the access network can determine the number of PDUs that the terminal device needs to send in response to the first scheduling grant according to the number of all untransmitted PDUs of the first air interface path.
  • the terminal device may send a second scheduling request to the access network before responding to the second scheduling authorization of the access network, where the second scheduling request is used to request to connect to the terminal through the second air interface path.
  • the PDU is sent to the network, and then receives the second scheduling grant that is sent by the access network based on the second scheduling request.
  • the second scheduling grant carries the sending time and the number of PDUs to be sent. Then, when the transmission time carried by the second scheduling grant is reached, the PDU is started to be sent to the access network on the second air interface path.
  • the second scheduling request may carry the number of all untransmitted PDUs of the second air interface path, and the number of all untransmitted PDUs of the second air interface path is the number of SDUs buffered by the IP layer, and at NextTxSn2
  • the sum of the number of sequence numbers included between NexTxSn1 enables the access network to determine the number of PDUs that the terminal device needs to transmit in response to the second scheduling grant according to the number of all untransmitted PDUs of the second air interface path.
  • the number of the at least one to-be-transmitted PDU is equal to the number of PDUs to be transmitted carried by the second scheduling grant.
  • At least one to-be-transmitted PDU on the second air interface path in the packet replication mode may be determined based on the generated total number of PDUs, that is, in response to the second When the authorization is scheduled, the PDU that is not confirmed by the access network can be directly obtained from the generated PDU as the to-be-transmitted PDU.
  • the PDU to be sent may continue to be generated after receiving the second scheduling grant.
  • the prediction here is such that the total number of pre-generated PDUs is approximately equal to the amount of data of at least one PDU to be transmitted.
  • the terminal device may generate the total number of PDUs by: first, the terminal device acquires the total number of SDUs buffered in the IP layer, and then each protocol layer of the terminal device (such as a PDCP layer, an RLC layer, etc.) In order to allocate the protocol header data, such as the protocol header data, to the header field, which is not dependent on the uplink network authorization, for example, the PDCP layer allocates the protocol header field of the PDCP for the acquired SDU, and the RLC layer allocates the protocol header field of the RLC for the SDU processed by the PDCP layer.
  • the media access control (MAC) layer allocates a protocol header of the MAC to the SDU processed by the RLC layer, and the like. As shown in FIG. 4, assuming that the terminal device is to transmit an IP packet to the access network, the IP packet is called an SDU, and the SDU is processed by the PDCP layer to add a PDCP protocol header field.
  • MAC media access control
  • the terminal device may generate a PDU according to the air interface quality of the second air interface path before the scheduling authorization is received, so that the terminal device can generate the appropriate PDCCH in advance.
  • the number of PDUs can effectively reduce the transmission delay caused by the generated PDU.
  • the determining, by the at least one PDU to be sent may be implemented as follows:
  • the first transmission record may include: NextAckSn1 and a sequence number of a PDU that has been sent on the first air interface path and is not confirmed by the access network after the PDU corresponding to NextAckSn1, and NextTxSn1 and The sequence number of the PDU that is not transmitted on the first air interface path after NextTxSn1.
  • the second transmission record may include: NextAckSn2 and a sequence number of a PDU that has been transmitted on the second air interface path after NextAckSn2 and is not confirmed by the access network, and NextAckSn2 and a PDU corresponding to NextAckSn2 The sequence number of the PDU that was not sent on the second air interface path.
  • the adjusting the second transmission record on the second air interface path according to the first transmission record to obtain at least one to-be-transmitted PDU may be implemented by using any one of the following two methods:
  • the first transmission record indicates that the PDU that has been confirmed by the access network is released.
  • the NextAckSn2 is adjusted to the NextAckSn1.
  • the PDU corresponding to the at least one sequence number starting from the NextTxSn2 is determined as the at least one to-be-transmitted PDU.
  • NextAckSn1 is 7, NextTxSn1 is 15, and the first transmission record is ⁇ 7, 9, 10, 12, 15, 16, 17, 18, 19, 20, 21... ⁇ .
  • NextAckSn2 is 1, NextTxSn2 is 11, and the second transmission record is ⁇ 1, 2, 5, 7, 9, 11, 12, 13, 14, 15, 16... ⁇ .
  • NextAckSn1 that is, 7 is larger than NextAckSn2 (that is, 1) and smaller than NextTxSn2 (that is, 11), so the sequence number ⁇ 1, 2, 5 ⁇ between NextAckSn2 and NextAckSn1 recorded in the second transmission record is corresponding.
  • the adjusted second transmission record is ⁇ 7,9,12,13,15,16... ⁇ .
  • Determining at least one PDU corresponding to the sequence number starting from NextTxSn2 as the at least one PDU to be transmitted that is, determining the PDU corresponding to the first N serial numbers of ⁇ 12, 13, 15, 16... ⁇ as the at least A to-be-transmitted PDU, N is equal to the number of the at least one to-be-transmitted PDU, that is, equal to the number of PDUs to be transmitted carried by the second scheduling grant.
  • the NextAckSn2 and NextTxSn2 are adjusted to the NextAckSn1.
  • the PDU corresponding to the at least one sequence number starting from the NextTxSn2 is determined as the at least one to-be-transmitted PDU.
  • NextAckSn1 is 7, NextTxSn1 is 15, and the first transmission record is ⁇ 7,9,10,12,13,15,16,17,18,19,20,21... ⁇ .
  • NextAckSn2 is 1, NextTxSn2 is 5, and the second transmission record is ⁇ 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13... ⁇ .
  • NextAckSn1 that is, 7
  • NextTxSn2 that is, 5
  • the first transmission record indicates that the PDU that has been confirmed by the access network (that is, the PDU corresponding to the sequence number ⁇ 8, 11, 14 ⁇ recorded in the second transmission record) is released, and both NextAckSn2 and NextTxSn2 are released. Adjusted to 7, so the adjusted second transmission record is ⁇ 7,9,10,12,13,15,16,17,18... ⁇ .
  • the PDU corresponding to the sequence number is determined as the at least one PDU to be transmitted, and M is equal to the number of the at least one PDU to be transmitted, that is, the number of PDUs to be transmitted carried by the second scheduling grant.
  • the transmission method of the terminal device on the two paths is the same. The difference is that the signal quality of the air interface resources of the two paths is different, and the PDU transmission speed of the two paths is different. However, if the access network is in the first air interface, If the PDU is successfully received on the path, the second air interface does not need to send the PDU again, which can reduce redundant transmission of the terminal device and effectively avoid bandwidth waste, and can reduce power consumption of the terminal device.
  • the determining the at least one to-be-transmitted PDU may also be implemented by determining the at least one to-be-transmitted PDU according to the first transmission record.
  • the first transmission record may include: a sequence number of a PDU that has been sent on the first air interface path and is not acknowledged by the access network, and is not sent on the first air interface path.
  • the serial number of the PDU Specifically, it can be implemented as follows:
  • NextTxSn1 is recorded for the first air interface path
  • NextTxSn2 is recorded for the second air interface path.
  • the PDU corresponding to the at least one sequence number starting from NextTxSn2 is determined as the at least one to-be-transmitted PDU.
  • the third scheduling grant is a next scheduling grant corresponding to the first air interface path of the first scheduling grant, and at least one serial number starting from NextTxSn1 based on the first sending record.
  • the corresponding PDU is determined as the at least one to-be-transmitted PDU.
  • the first transmission record is ⁇ 5,8,10,15,19,23,25,26,27,28,29,30... ⁇
  • NextTxSn1 is 25
  • NextTxSn2 is 17
  • the second scheduling authorization carries the need
  • the number of PDUs sent is 7
  • the number of PDUs to be sent carried in the third scheduling grant is 5, as shown in FIG. 7.
  • the The first seven sequence numbers ⁇ 19, 23, 25, 26, 27, 28, 29 ⁇ starting at 17 are determined as the at least one PDU to be transmitted
  • NextTxSn2 is updated to 30, as indicated by the dashed arrow.
  • the access network confirms that the PDU corresponding to ⁇ 27, 28 ⁇ has been successfully received, the first transmission record is updated to ⁇ 5, 8, 10, 15, 19, 23, 25, 26, 29, 30... ⁇ Therefore, in response to the third scheduling grant, according to the updated first transmission record, the PDU corresponding to the first five sequence numbers ⁇ 25, 26, 29, 30, 31 ⁇ starting from 25 is sent to the access network. Send and update NextTxSn1 to 32, as indicated by the dashed arrow.
  • the second air interface path does not need to send the PDU again. If the second air interface path successfully receives the message for a certain PDU, the first air interface path is the same. There is no need to send the PDU again, which can reduce the redundant transmission of the terminal device and avoid the waste of bandwidth, and can also reduce the power consumption of the terminal device.
  • the protocol data unit PDU of the packet data convergence protocol PDCP is sent to the access network on the first air interface path in the packet replication mode, where the a scheduling authorization corresponding to the first air interface path; a first transmission record recorded on the first air interface path; determining, in the packet replication mode, in response to a second scheduling authorization from the access network At least one to-be-transmitted PDU to be sent to the access network on the second air interface path, wherein the at least one to-be-transmitted PDU excludes the acknowledgement by the access network that is indicated by the first transmission record a PDU, the second scheduling grant is corresponding to the second air interface path, and the at least one to-be-transmitted PDU is sent to the access network on the second air interface path.
  • the terminal device can coordinate the two air interface paths according to the transmission records of the two air interface paths, if the terminal device independently transmits the PDCP PDUs in parallel through the two air interface paths in the packet replication mode. If one of the air interface paths successfully receives the message for a certain PDU, the other air interface path does not need to send the PDU again, so that the terminal device can be repeatedly prevented from repeatedly transmitting the PDU that has been confirmed by the access network, thereby reducing the redundancy of the terminal device. Sending, in turn, can improve the utilization of air interface resources and avoid bandwidth waste, and can also reduce the power consumption of the terminal device.
  • the terminal device may generate a PDU according to the air interface quality of the second air interface path before the terminal device receives the authorization command, and the terminal device generates the PDU.
  • the PDU can be independent of the authorization command, so that the transmission delay caused by the generated PDU can be effectively reduced.
  • the embodiment of the present invention provides an uplink data transmission device 80, which is specifically used to implement the method described in the embodiments of FIG. 3 to FIG. 7.
  • the device may be the terminal device itself, or may be a chip or a chipset in the terminal device. Or a part of the chip or chip for performing related method functions.
  • the structure of the device is as shown in FIG. 8.
  • the physical device includes a transceiver 801 and a processor 802.
  • the processor 802 can be a central processing unit. Central processing unit (CPU), microprocessor, ASIC, programmable logic circuit, LSI, or digital processing unit.
  • the transceiver 801 is used for data transmission and reception by the terminal device and other devices.
  • the transceiver 801 can be a radio frequency transceiver device, and is mainly used for modulating the baseband signal processed by the processor 802 into a high frequency wireless signal, and receiving the high frequency.
  • the frequency wireless signal is processed into a baseband data signal transmission processor 802 for processing.
  • the device may also include a memory 803 for storing programs executed by the processor 802, and of course may store some other data and the like required by the terminal device.
  • the memory 803 may be a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory 803 may also be a non-volatile memory (English: non-volatile memory)
  • read-only memory English: read-only memory, abbreviation: ROM
  • flash memory English: flash memory
  • hard disk English: hard disk drive, abbreviation: HDD
  • solid state drive English: solid-state drive Abbreviation: SSD
  • memory 803 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory 803 may be a combination of the above memories.
  • the specific connection medium between the processor 802, the memory 803, and the transceiver 801 is not limited in the embodiment of the present application.
  • only the memory 803, the processor 802, and the transceiver 801 are connected by a bus 804 in FIG. 8 as an example.
  • the bus is indicated by a thick line in FIG. 8 and the connection manner between other components is only It is intended to be illustrative and not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.
  • the processor 802 can be dedicated hardware or a processor running software. When the processor 802 can run software, the processor 802 reads the instructions stored in the memory 803 and, under the driving of the instructions, executes the operations involved in the previous embodiment. method.
  • the transceiver 801 receives a first scheduling grant sent by the access network, where the first scheduling grant is used to authorize the terminal device to transmit the PDCP PDU in the first air interface path based on the packet replication mode.
  • the processor 802 obtains a PDCP PDU sent to the access network on the first air interface path in response to the first scheduling grant received by the transceiver 801, and the transceiver 801 uses a PDCP PDU obtained by the processor 802. Transmitted to the access network on the first air interface path; the processor 802 records the first transmission record on the first air interface path.
  • the transceiver 801 receives a second scheduling grant sent by the access network, and the second scheduling grant is used to authorize the terminal device to transmit the PDCP PDU in the second air interface path based on the packet replication mode.
  • the processor 802 obtains at least one to-be-transmitted PDU to be sent to the access network on the second air interface path, in response to the second scheduling grant received by the transceiver 801, where the at least PDUs that have been acknowledged by the access network indicated by the first transmission record are excluded from a to-be-transmitted PDU; the transceiver 801 sets at least one to-be-transmitted PDU obtained by the processor 802 in the second air interface path. Transmitted to the access network.
  • the processor 802 may record a second transmission record on the second air interface path when responding to the previous scheduling authorization of the second scheduling grant.
  • the processor 802 can adjust the second transmission record according to the first transmission record to obtain the at least one to-be-transmitted PDU.
  • the first transmission record may include: a sequence number of the first PDU and a PDU that has been sent on the first air interface path after the first PDU and is not confirmed by the access network.
  • the first PDU is already in the first air interface path a next PDU of the last PDU transmitted on the access network, the second PDU being the next PDU of the last PDU that has been sent on the first air interface path, the first The sequence number of the PDU is less than or equal to the sequence number of the second PDU.
  • the second transmission record may include: a sequence number of the third PDU and a sequence number of the PDU that has been sent on the second air interface path after the third PDU and is not confirmed by the access network, And a sequence number of the fourth PDU and a sequence number of the PDU that is not transmitted on the second air interface path after the fourth PDU; wherein the third PDU is sent on the second air interface path And the next PDU of the last PDU confirmed by the access network, the fourth PDU being the next PDU of the last PDU that has been sent on the second air interface path, the sequence of the third PDU The number is less than or equal to the serial number of the fourth PDU.
  • the processor 802 may specifically be that the sequence number of the first PDU is greater than a sequence number of the third PDU, and is smaller than the fourth. a PDU corresponding to a sequence number between a sequence number of the third PDU and a sequence number of the first PDU, and a first transmission record indication after the first PDU
  • the PDU that has been confirmed by the access network is released; the sequence number of the third PDU is adjusted to the sequence number of the first PDU; and at least one sequence number starting from the sequence number of the fourth PDU is corresponding.
  • the PDU is determined to be the at least one to-be-transmitted PDU.
  • the processor 802 may also be in the first when the sequence number of the first PDU is greater than the sequence number of the fourth PDU. a PDU corresponding to the sequence number preceding the sequence number of a PDU, and a PDU after the first PDU, the first transmission record indicating that the acknowledgment has been confirmed by the access network; releasing the sequence of the third PDU The sequence number of the number and the fourth PDU is adjusted to the sequence number of the first PDU; the PDU corresponding to the at least one sequence number starting from the sequence number of the fourth PDU is determined as the at least one PDU to be transmitted.
  • At least one scheduling grant from the access network may be received before the transceiver 801 receives the second scheduling grant, and the at least one scheduling grant is used to authorize the terminal device to be in the second air interface path based on the packet replication mode.
  • the PDCP PDU is transmitted, wherein each scheduling grant includes the total number of PDUs that need to be transmitted. Therefore, the processor 802 may also receive, according to the access network, the transceiver 801 before the second scheduling grant, before responding to the second scheduling grant received by the transceiver 801.
  • the at least one scheduling grant predicting a total number of PDUs to be sent on the second air interface path in response to the second scheduling grant, and then pre-generating the total number of PDUs for the second air interface path .
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the corresponding device may include multiple functional modules, and each functional module may include software, hardware or a combination thereof.
  • the device is as shown in FIG. 9, which may be in the terminal device.
  • the protocol data unit PDU of the packet data convergence protocol PDCP Transmitting, on the path, the protocol data unit PDU of the packet data convergence protocol PDCP to the access network, where the first scheduling authorization corresponds to the first air interface path, and the first recording module 902 is configured to record in the first air interface a first sending record on the path; the second sending module 903, configured to determine at least one to-be-transmitted PDU on the second air interface path in the packet replication mode, in response to the second scheduling grant from the access network, The PDU that has been confirmed by the access network indicated by the first transmission record recorded by the first recording module 902 is excluded from the at least one to-be-transmitted PDU, and the second scheduling authorization corresponds to the The second air interface path is configured to send the at least one to-be-transmitted PDU determined by the determining module to the access network on the second air interface path.
  • the device further includes a second recording module 904; the second recording module 904 is configured to record a second sending record on the second air interface path; and the second sending module 903 is in determining The at least one PDU to be sent is used to: adjust the second transmission record recorded by the second recording module 904 according to the first transmission record recorded by the first recording module 902 to obtain the at least one to-be-received Send a PDU.
  • the first sending may record: a sequence number of the first PDU and a PDU that has been sent on the first air interface path after the first PDU and is not confirmed by the access network. a sequence number, and a sequence number of the second PDU and a sequence number of the PDU not transmitted on the first air interface path after the second PDU; wherein the first PDU is already in the first air interface path a next PDU of the last PDU transmitted on the access network, the second PDU being the next PDU of the last PDU that has been sent on the first air interface path, the first The sequence number of the PDU is less than or equal to the sequence number of the second PDU; the second transmission record may include: a sequence number of the third PDU and a message that has been sent on the second air interface path after the third PDU a sequence number of the PDU that is not acknowledged by the access network, and a sequence number of the fourth PDU and a sequence number of the PDU that is not transmitted on the second air interface path after the fourth PDU; wherein The third
  • the second sending module 903 may specifically be that the sequence number of the first PDU is greater than the sequence number of the third PDU, and is smaller than the first sending record and the second sending record.
  • the PDU corresponding to the number is determined as the at least one PDU to be transmitted.
  • the second sending module 903 may also be in the case where the sequence number of the first PDU is greater than the sequence number of the fourth PDU.
  • the sequence number and the sequence number of the fourth PDU are adjusted to the sequence number of the first PDU; the PDU corresponding to the at least one sequence number starting from the sequence number of the fourth PDU is determined as the at least one to-be-transmitted PDU.
  • the device further includes a pre-generation module 905, configured to: before the second sending module 903 is responsive to the second scheduling authorization from the access network, according to the At least one scheduling grant from the access network before the second scheduling grant, predicting a total number of PDUs to be sent on the second air interface path in response to the second scheduling grant, wherein the at least one scheduling The authorization corresponds to the second air interface path, and each scheduling grant includes the number of PDUs to be sent; and the total number of PDUs is generated for the second air interface path.
  • a pre-generation module 905 configured to: before the second sending module 903 is responsive to the second scheduling authorization from the access network, according to the At least one scheduling grant from the access network before the second scheduling grant, predicting a total number of PDUs to be sent on the second air interface path in response to the second scheduling grant, wherein the at least one scheduling The authorization corresponds to the second air interface path, and each scheduling grant includes the number of PDUs to be sent; and the total number of PDUs is generated for the second air interface
  • each functional module in each embodiment of the present application may be integrated into one processing. In the device, it can also be physically existed alone, or two or more modules can be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated module is implemented in the form of hardware, the physical hardware corresponding to the first sending module 901, the first recording module 902, the second sending module 903, the second recording module 904, and the pre-generating module 905 may be a processor. 802.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种上行数据传输方法及装置，用以解决现有技术中存在的基于包复制技术传输分组数据汇聚协议PDCP的协议数据单元PDU时导致的空口资源浪费，终端功耗较大的问题。该方法包括：响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向接入网发送PDCP PDU，第一调度授权对应于第一空口路径，并记录在第一空口路径上的第一发送记录。响应于来自接入网的第二调度授权，确定在包复制模式下的第二空口路径上的至少一个待发送PDU，其中，至少一个待发送PDU中排除了第一发送记录所指示的已被接入网确认的PDU，第二调度授权对应于第二空口路径；在第二空口路径上向接入网发送所述至少一个待发送PDU。

Description

一种上行数据传输方法及装置
本申请要求在2017年09月30日提交中国专利局、申请号为201710923047.9、发明名称为“一种上行数据传输方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种上行数据传输方法及装置。
背景技术
第三代合作伙伴计划(3rd generation partnership project，3GPP)无线接入网第二层(Radio access network 2，RAN2)在新无线电(new radio，NR)中引入包复制(duplication)功能以增加数据传输可靠性。包复制功能即，终端将多个基于分组数据汇聚协议(packet data convergence protocol，PDCP)的协议数据单元(protocol data unit，PDU)进行复制，然后将原始的多个PDCP PDU以及复制得到的多个PDCP PDU分别通过两个不同的空口传输路径并行向接入网进行发送，从而终端通过第一空口传输路径发送的PDCP PDU未送达接入网时，该接入网可以接收到终端通过第二空口传输路径发送的PDCP PDU，从而增加了数据传输的可靠性。
然而，终端基于包复制功能向接入网发送PDCP PDU时，由于两条空口传输路径独立并行地进行传输，导致通过第一空口传输路径发送的某个PDCP PDU已经到达接入网时，终端依然通过第二空口传输路径向接入网发送该PDCP PDU，造成空口资源浪费，并且增加了终端功耗。
发明内容
本申请提供一种上行数据传输方法及装置，用以解决现有技术中存在的基于包复制技术传输PDCP PDU时导致的空口资源浪费，终端功耗较大的问题。
第一方面，本申请提供了一种上行数据传输方法，该方法包括：响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向所述接入网发送PDCPPDU，所述第一调度授权对应于所述第一空口路径，并记录在所述第一空口路径上的第一发送记录。在响应于来自所述接入网的第二调度授权时，确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU，所述第二调度授权对应于所述第二空口路径，之后在所述第二空口路径上向所述接入网发送所述至少一个待发送PDU。
上述方案提供了一种应用于包复制模式下的上行数据传输方法，相比于现有技术中终端设备通过包复制模式下的两个空口路径独立并行的传输PDCP PDU，本申请实施例中终端设备可以根据两个空口路径的发送记录相互协调两个空口路径，若其中一个空口路径针对某个PDU反馈成功接收消息，则另一个空口路径则无需再发送该PDU，从而可以有效避免终端设备重复发送已被所述接入网确认的PDU，可以降低终端设备的冗余发送，进而可以提高空口资源的利用率、避免带宽浪费，以及降低终端设备的功耗。
在一种可能的设计中，所述确定至少一个待发送PDU可以通过根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到所述至少一个待发送PDU。
上述设计中，通过第一发送记录调整第二发送记录来相互协调两个空口路径，可以有效避免终端设备重复发送已被所述接入网确认的PDU，降低终端设备的冗余发送，从而可以提高空口资源的利用率以及避免带宽浪费，降低终端设备的功耗。
在一种可能的设计中，所述第一发送记录可以包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序列号小于等于所述第二PDU的序列号。所述第二发送记录可以包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三PDU的序列号小于等于所述第四PDU的序列号。
上述设计中通过第一发送记录以及第二发送记录可以确定已被接入网确认的PDU，从而可以避免终端设备重复发送已被所述接入网确认的PDU，有效降低终端设备的冗余发送，进而可以提高空口资源的利用率以及避免带宽浪费，并可以降低终端设备的功耗。
在一种可能的设计中，根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到至少一个待发送PDU可以包括：在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；然后将所述第三PDU的序列号调整为所述第一PDU的序列号；之后将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
终端设备在两条空口路径上的传输方法是相同的，差别在于两条空口路径的空口资源的信号质量不同，导致两条空口路径的PDU发送速度不同，而上述设计中，若接入网在第一空口路径上针对某个PDU反馈成功接收消息，则第二空口路径则无需再发送该PDU，从而可以减少终端设备的冗余发送，避免带宽浪费，并可以降低终端设备的功耗。
在一种可能的设计中，根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到至少一个待发送PDU可以包括：在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；然后将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；之后，将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
上述设计中，若接入网在第一空口路径上针对某个PDU反馈成功接收消息，则第二空口路径则无需再发送该PDU，从而可以减少终端设备的冗余发送，避免带宽浪费，并可以降低终端设备的功耗。
在一种可能的设计中，还可以根据所述第一发送记录来确定所述至少一个待发送PDU。其中，所述第一发送记录可以包括：已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及未在所述第一空口路径上发送的PDU的序列号。具体的，针对第二空口路径确定已在所述第二空口路径上发送的最后一个PDU的下一PDU。然后在响应第二调度授权时，基于所述第一发送记录，从确定的所述PDU对应的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
上述设计中，若接入网在第一空口路径上针对某个PDU反馈成功接收消息，则第二空口路径则无需再发送该PDU，从而可以减少终端设备的冗余发送，避免带宽浪费，并可以降低终端设备的功耗。
在一种可能的设计中，在确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU之前，还可以先根据在所述第二调度授权之前来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；然后为所述第二空口路径生成所述总数量的PDU，所述确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU是基于所述总数量的PDU的。
相比于现有技术中终端设备在接收到授权指令之后生成PDU，上述设计中终端设备可以在接收授权指令之前根据第二空口路径的空口质量预先生成PDU，从而终端设备在生成PDU时可以不依赖于授权指令，从而可以降低由生成PDU导致的传输延时。
第二方面，本申请实施例提供一种上行数据传输装置，所述装置包括：第一发送模块，用于响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向所述接入网发送分组数据汇聚协议PDCP的协议数据单元PDU，所述第一调度授权对应于所述第一空口路径；第一记录模块，用于记录在所述第一空口路径上的第一发送记录；第二发送模块，用于响应于来自所述接入网的第二调度授权，确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一记录模块记录的所述第一发送记录所指示的已被所述接入网确认的PDU，所述第二调度授权对应于所述第二空口路径；并在所述第二空口路径上向所述接入网发送所述确定模块确定的所述至少一个待发送PDU。
在一种可能的设计中，所述装置还包括第二记录模块；所述第二记录模块，用于记录在所述第二空口路径上的第二发送记录；所述第二发送模块，在确定至少一个待发送PDU时，具体用于：根据所述第一记录模块记录的所述第一发送记录调整所述第二记录模块记录的所述第二发送记录来得到所述至少一个待发送PDU。
在一种可能的设计中，所述第一发送记录包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序列号小于等于所述第二PDU的序列号；所述第二 发送记录包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三PDU的序列号小于等于所述第四PDU的序列号。
在一种可能的设计中，所述第二发送模块，在根据所述第一记录模块记录的所述第一发送记录调整所述第二记录模块记录的所述第二发送记录来得到所述至少一个待发送PDU时，具体用于：在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
在一种可能的设计中，所述第二发送模块，在根据所述第一记录模块记录的所述第一发送记录调整所述第二记录模块记录的所述第二发送记录来得到所述至少一个待发送PDU时，具体用于：在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
在一种可能的设计中，所述装置还包括预生成模块；所述预生成模块，用于在所述第二发送模块响应于来自所述接入网的第二调度授权之前，根据在所述第二调度授权之前来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；并为所述第二空口路径生成所述总数量的PDU，所述确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU是基于所述总数量的PDU的。
第三方面，本申请实施例还提供了一种上行数据传输设备，所述设备包括存储器以及处理器；所述存储器用于存储软件程序，所述处理器用于读取所述存储器中存储的软件程序并实现第一方面或上述第一方面的任意一种设计提供的方法。
第四方面，本申请实施例中还提供一种计算机可读存储介质，该计算机可读存储介质中存储程序，该程序在被一个或多个处理器读取并执行时可实现第一方面或上述第一方面的任意一种设计所述的方法。
第五方面，本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或上述第一方面的任意一种设计所述的方法。
附图说明
图1为本申请提供的一种通信系统的结构示意图；
图2为本申请提供的一种包复制模式的示意图；
图3为本申请提供的一种上行数据传输方法的流程示意图；
图4为本申请提供的PDU生成方法的示意图；
图5为本申请提供的一种待发送PDU确定方法的示意图；
图6为本申请提供的另一种待发送PDU确定方法的示意图；
图7为本申请提供的另一种待发送PDU确定方法的示意图；
图8为本申请提供的一种上行数据传输设备的结构示意图；
图9为本申请提供的一种上行数据传输装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。本申请提供的上行数据传输方法可以应用于采用包复制模式的通信系统中。采用包复制模式的通信系统的架构如图1所示，包括接入网以及终端设备，接入网与终端设备之间进行上行数据传输以及下行数据传输。在所述通信系统中，终端设备基于网络设备发送的调度信息进行上行数据传输。本申请实施例涉及的通信系统可以是各类通信系统，例如，可以是长期演进(long term evolution，LTE)，也可以是第五代(5G)通信系统，还可以是LTE与5G混合架构。
其中，接入网，可以是普通的基站(如Node B或eNB)，可以是新无线控制器(New Radio controller，NR controller)，可以是5G系统中的gNode B(gNB)，可以是集中式网元(Centralized Unit)，可以是新无线基站，可以是射频拉远模块，可以是微基站，可以是中继(relay)，可以是分布式网元(Distributed Unit)，可以是接收点(Transmission Reception Point，TRP)或传输点(Transmission Point，TP)或者任何其它无线接入设备，但本申请实施例不限于此。该接入网包括至少一个基站，其中，每个基站可以覆盖1个或多个小区。
终端设备，又称之为用户设备(User Equipment，UE)，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。常见的终端例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，例如智能手表、智能手环、计步器等。
在基于图1所示的通信系统中，终端设备在采用包复制技术向接入网传输分组数据汇聚协议(packet data convergence protocol，PDCP)的协议数据单元(protocol data unit，PDU)时，将待发送的多个PDCP PDU进行复制，然后将原始的多个PDCP PDU以及复制得到的多个PDCP PDU分别在接入网覆盖下的两个小区的空口资源上向该接入网独立并行进行发送。由于两个小区的空口资源的信号质量不同，两个小区的PDU传输速度可能不同。基于此，本申请提供一种上行数据传输方法及装置，可以应用于所述终端设备。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
以下，对本申请中的部分用语进行解释说明，以便与本领域技术人员理解。
包复制模式：在上行传输时，终端设备将多个PDCPPDU进行复制，然后将原始的多个PDCPPDU以及复制得到的多个PDCPPDU分别通过两个不同的空口路径并行向接入网进行发送，也就是通过不同小区的空口资源并行向接入网进行发送。
空口路径：即小区的空口资源。包复制模式下的两个空口路径所在的小区不同，因 此所述两个空口路径的无线链路控制(radio link control，RLC)实体以及逻辑信道不同，如图2所示。两个空口路径所在的小区可以属于该接入网下的同一个基站，也可以分别属于该接入网下的两个不同的基站，因此，所述两个空口路径的RLC实体可以属于同一个小区组合(cell group，CG)，也可以属于不同的CG。其中，同一个基站覆盖下的所有小区为一个小区组合。当两个空口路径属于同一个小区组合，终端设备在两个空口路径上与同一个基站通信。当两个空口路径不属于同一个小区组合，终端设备在两个空口路径上与两个基站分别通信。
调度授权：终端设备在需要向接入网传输上行数据时，向接入网发送调度请求(scheduling request，SR)。从而接入网接收到SR后，为终端设备分配用于传输上行数据的资源，并通过上行调度授权(UL grant)通知终端设备，也就是通过UL grant指示终端设备可以用于传输数据的时频资源，以及指示终端设备需要传输的PDCP PDU的数量等。
本申请中所涉及的多个，是指两个或两个以上。
另外，需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
下面结合附图对本申请提供的上行数据传输方法进行具体说明。
参见图3，为本申请提供的一种上行数据传输方法的流程图。该方法可以应用于图1所示的通信系统，该方法包括：
S301，接入网(比如基站)向终端设备下发第一调度授权，所述第一调度授权对应于包复制模式下的第一空口路径，即第一调度授权可以授权终端设备在第一空口路径上传输分组数据汇聚协议PDCP的协议数据单元PDU。两个空口路径可以选择性的用于连接终端设备和接入网中的同一基站或分别两个基站。例如，对于两个空口路径属于同一个小区组合的情况，与终端设备通信的接入网是同一个基站；对于两个空口路径属于非同一个小区组合的情况，与终端设备通信的接入网包括多个基站。
S302，所述终端设备响应于所述第一调度授权，在所述第一空口路径上向所述接入网发送PDCP PDU。
S303，所述终端设备记录在所述第一空口路径上的第一发送记录。其中，第一发送记录用于使终端设备确定已被所述接入网确认的PDU。第一发送记录可以包括接入网在所述第一空口路径上反馈了成功接收消息的PDU的序列号；也可以包括：已在第一空口路径上发送且未被接入网确认的PDU的标识以及未在第一空口路径上发送的PDU的标识；也可以包括：已在第一空口路径上发送且未被接入网确认的PDU的标识以及已在所述第一空口路径上发送的最后一个PDU的下一PDU的序列号；当然，第一发送记录也可以包括其他内容，本申请实施例在这里不做具体限定。
S304，所述接入网向所述终端设备下发第二调度授权，所述第二调度授权对应于所述包复制模式下的第二空口路径，即第二调度授权可以授权终端设备在第二空口路径上传输PDCPPDU。例如，对于两个空口路径属于非同一个小区组合的情况，下发第一调度授权盒第二调度授权的是所述接入网中的不同基站。或者对于两个空口路径属于同一个小区组合的情况，下发第一调度授权盒第二调度授权的是所述接入网中的同一基站。
S305，所述终端设备响应于所述第二调度授权，确定在所述第二空口路径上待发送到所述接入网的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU。终端设备可以根据第一发送记录确定 已被所述接入网确认的PDU，然后判断未在第二空口路径上发送的PDU中是否存在已被所述接入网确认的PDU。若有，则删除该PDU，之后终端设备确定在经过删除后的未在第二空口路径上发送的PDU中的至少一个为所述至少一个待发送PDU。
S306，所述终端设备基于包复制方式在所述第二空口路径上向所述接入网发送所述至少一个待发送PDU。
相比于现有技术中终端设备通过包复制模式下的两个空口路径独立并行的传输PDCP PDU，本申请实施例中终端设备可以根据两个空口路径的发送记录相互协调两个空口路径，若其中一个空口路径针对某个PDU反馈成功接收消息，则另一个空口路径则无需再发送该PDU，从而可以有效避免终端设备重复发送已被所述接入网确认的PDU，降低终端设备的冗余发送，进而可以提高空口资源的利用率、避免带宽浪费，还可以降低终端设备的功耗。
为了方便描述，本申请实施例将已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU的序列号统一称为NextAckSn1，将已在所述第一空口路径上发送的最后一个PDU的下一PDU的序列号统一称为NextTxSn1，其中，NextAckSn1小于等于NextTxSn1。将已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU的序列号统一称为NextAckSn2，将已在所述第二空口路径上发送的最后一个PDU的下一PDU的序列号统一称为NextTxSn2，其中，NextAckSn2小于等于NextTxSn2。
终端设备在响应接入网的第一调度授权之前，可以向所述接入网发送第一调度请求，所述第一调度请求用于请求通过所述第一空口路径向所述接入网发送PDU，然后接收接入网基于所述第一调度请求后下发的第一调度授权，第一调度授权中携带发送时间以及需要发送的PDU的数量。然后在到达第一调度授权携带的发送时间时，开始在第一空口路径上向接入网发送PDU。
其中，所述第一调度请求中可以携带所述第一空口路径的所有未发送的PDU的数量，第一空口路径的所有未发送的PDU的数量即为网络协议(internet protocol，IP)层缓存的业务数据单元(service data unit，SDU)的数量，使得接入网可以根据第一空口路径的所有未发送的PDU的数量确定终端设备在响应第一调度授权时需要发送的PDU的数量。
同理，终端设备在响应接入网的第二调度授权之前，可以向所述接入网发送第二调度请求，所述第二调度请求用于请求通过所述第二空口路径向所述接入网发送PDU，然后接收接入网基于所述第二调度请求后下发的第二调度授权，第二调度授权中携带发送时间以及需要发送的PDU的数量。然后在到达第二调度授权携带的发送时间时，开始在第二空口路径上向接入网发送PDU。
其中，所述第二调度请求中可以携带所述第二空口路径的所有未发送的PDU的数量，第二空口路径的所有未发送的PDU的数量为IP层缓存的SDU的数量，以及在NextTxSn2至NexTxSn1之间所包括的序列号的数量之和，使得接入网可以根据第二空口路径的所有未发送的PDU的数量确定终端设备在响应第二调度授权时需要发送的PDU的数量。
在一种实施例中，所述至少一个待发送PDU的数量等于第二调度授权所携带的需要发送的PDU的数量。
在接收所述第二调度授权之前，可以根据在所述第二调度授权之前来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；然后为所述第二空口路径生成所述总数量的PDU。从而在响应于第二调度授权时，可以基于生成的所述总数量的PDU来确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU，也就是，在响应于第二调度授权时，可以直接从已生成的PDU中获取未经接入网确认的PDU作为待发送PDU。若第二调度授权中包括的需要发送的PDU的数量大于已生成的PDU中获取未经接入网确认的PDU的数量时，可以在接收到第二调度授权后继续生成待发送PDU。这里的预测使得预先生成的PDU的总数量大致等于至少一个待发送PDU的数据量。
其中，终端设备可以通过如下方式生成所述总数量的PDU：首先，终端设备在IP层中获取缓存的所述总数量的SDU，然后终端设备的各协议层(如PDCP层、RLC层等等)依次为获取的SDU分配协议头数据等一些不依赖上行网络授权的头域，例如PDCP层为获取的SDU分配PDCP的协议头域、RLC层为经过PDCP层处理的SDU分配RLC的协议头域、媒体接入控制(media access control，MAC)层为经过RLC层处理的SDU分配MAC的协议头部等等。如图4所示，假设终端设备要向接入网传输一个IP包，则这个IP包称作SDU，该SDU经过PDCP层进行添加PDCP的协议头域等处理。
相比于现有技术中终端设备在接收到调度授权之后生成PDU，本申请实施例中终端设备可以在接收调度授权之前根据第二空口路径的空口质量预先生成PDU，从而终端设备可以提前生成适合数量的PDU，从而可以有效的降低由生成PDU导致的传输延时。
在一种可能的实施方式中，所述确定至少一个待发送PDU，可以通过如下方式实现：
根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到所述至少一个待发送PDU。其中，所述第一发送记录可以包括：NextAckSn1和在NextAckSn1对应的PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及NextTxSn1和在NextTxSn1之后未在所述第一空口路径上发送的PDU的序列号。所述第二发送记录可以包括：NextAckSn2和在NextAckSn2之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及NextAckSn2和在NextAckSn2对应的PDU之后未在所述第二空口路径上发送的PDU的序列号。
具体的，所述根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到至少一个待发送PDU，可以通过如下两种方式中的任一种实现：
方式一：
A1，参阅图5所示，在所述NextAckSn1大于所述NextAckSn2，且小于所述NextTxSn2时，将在所述NextAckSn2与所述NextAckSn1之间的序列号对应的PDU，以及在所述NextAckSn1对应的PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放。
A2，将所述NextAckSn2调整为所述NextAckSn1。
A3，将从所述NextTxSn2开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
例如，NextAckSn1为7，NextTxSn1为15，第一发送记录为{7，9，10，12，15， 16，17，18，19，20，21……}。NextAckSn2为1，NextTxSn2为11，第二发送记录为{1，2，5，7，9，11，12，13，14，15，16……}。
可以确定NextAckSn1(也就是7)大于NextAckSn2(也就是1)，小于NextTxSn2(也就是11)，因此将第二发送记录中记录的NextAckSn2与NextAckSn1之间的序列号{1，2，5}对应的PDU，以及在NextAckSn1在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU(也就是第二发送记录中记录的序列号{11，14}对应的PDU)进行释放，并将NextAckSn2调整为7，则调整后的第二发送记录为{7，9，12，13，15，16……}。将从NextTxSn2开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU，也就是将{12，13，15，16……}的前N个序列号对应的PDU确定为所述至少一个待发送PDU，N等于所述至少一个待发送PDU的数量，也就是等于第二调度授权携带的需要发送的PDU的数量。
方式二：
B1，参阅图6所示，在所述NextAckSn1大于所述NextTxSn2时，将在所述NextAckSn1之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放。
B2，将所述NextAckSn2和NextTxSn2调整为所述NextAckSn1。
B3，将从所述NextTxSn2开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
例如，NextAckSn1为7，NextTxSn1为15，第一发送记录为{7，9，10，12，13，15，16，17，18，19，20，21……}。NextAckSn2为1，NextTxSn2为5，第二发送记录为{1，2，5，6，7，8，9，10，11，12，13……}。
可以确定NextAckSn1(也就是7)大于NextTxSn2(也就是5)，因此将第二发送记录中记录的NextAckSn2之前的序列号{1，2，5，6}对应的PDU，以及在NextAckSn1对应的PDU之后、所述第一发送记录指示已被所述接入网确认的PDU(也就是第二发送记录中记录的序列号{8，11，14}对应的PDU)进行释放，并将NextAckSn2以及NextTxSn2均调整为7，因此调整后的第二发送记录为{7，9，10，12，13，15，16，17，18……}。将从NextTxSn2开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU，也就是将{7，9，10，12，13，15，16，17，18……}的前M个序列号对应的PDU确定为所述至少一个待发送PDU，M等于所述至少一个待发送PDU的数量，也就是等于第二调度授权携带的需要发送的PDU的数量。
终端设备在两条路径上的传输方法是相同的，差别在于两条路径的空口资源的信号质量不同，导致两条路径的PDU发送速度不同，而通过上述方案，若接入网在第一空口路径上针对某个PDU反馈成功接收消息，则第二空口路径则无需再发送该PDU，从而可以减少终端设备的冗余发送以及有效避免带宽浪费，并且可以降低终端设备的功耗。
在另一种可能的实施方式中，所述确定至少一个待发送PDU，还可以通过如下方式实现：根据所述第一发送记录来确定所述至少一个待发送PDU。其中，所述第一发送记录可以包括：已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及未在所述第一空口路径上发送的PDU的序列号。具体的，可以通过如下方式实现：
C1，针对第一空口路径记录NextTxSn1，针对第二空口路径记录NextTxSn2。
C2，在响应第二调度授权时，基于所述第一发送记录，从NextTxSn2开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
之后，在接收到所述接入网在所述第二空口路径上针对在所述第二空口路径上已发送的任一PDU的成功接收消息、且该任一PDU对应的PDU序列号包含在第一发送记录中时，可以删除记录的该任一PDU对应的PDU序列号。从而可以在响应第三调度授权时，所述第三调度授权为所述第一调度授权的下一个与第一空口路径对应的调度授权，基于第一发送记录，从NextTxSn1开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
以第一发送记录为{5，8，10，15，19，23，25，26，27，28，29，30……}，NextTxSn1为25，NextTxSn2为17，第二调度授权中携带的需要发送的PDU的数量为7，第三调度授权中携带的需要发送的PDU的数量为5为例，参阅图7所示，在响应第二调度授权时，根据所述第一发送记录，将从17开始的前7个序列号{19，23，25，26，27，28，29}确定为所述至少一个待发送PDU，并将NextTxSn2更新为30，如虚线箭头所示。当接入网确认{27，28}对应的PDU已接收成功时，将所述第一发送记录更新为{5，8，10，15，19，23，25，26，29，30……}，从而在响应第三调度授权时，根据更新后的所述第一发送记录，将从25开始的前5个序列号{25，26，29，30，31}对应的PDU向接入网进行发送，并将NextTxSn1更新为32，如虚线箭头所示。
通过上述方案，若第一空口路径针对某个PDU反馈成功接收消息，则第二空口路径则无需再发送该PDU，若第二空口路径针对某个PDU反馈成功接收消息，则第一空口路径同样无需再发送该PDU，从而可以减少终端设备的冗余发送以及避免带宽浪费，还可以降低终端设备的功耗。
本申请实施例中，响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向所述接入网发送分组数据汇聚协议PDCP的协议数据单元PDU，所述第一调度授权对应于所述第一空口路径；记录在所述第一空口路径上的第一发送记录；响应于来自所述接入网的第二调度授权，确定在所述包复制模式下的第二空口路径上待发送到所述接入网的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU，所述第二调度授权对应于所述第二空口路径；在所述第二空口路径上向所述接入网发送所述至少一个待发送PDU。相比于现有技术中终端设备通过包复制模式下的两个空口路径独立并行的传输PDCP PDU，本申请实施例中终端设备可以根据两个空口路径的发送记录相互协调两个空口路径，若其中一个空口路径针对某个PDU反馈成功接收消息，则另一个空口路径则无需再发送该PDU，从而可以有效避免终端设备重复发送已被所述接入网确认的PDU，降低终端设备的冗余发送，进而可以提高空口资源的利用率以及避免带宽浪费，还可以降低终端设备的功耗。并且，相比于现有技术中终端设备在接收到授权指令之后生成PDU，本申请实施例中终端设备可以在接收授权指令之前根据第二空口路径的空口质量预先生成PDU，从而终端设备在生成PDU时可以不依赖于授权指令，从而可以有效的降低由生成PDU导致的传输延时。
本发明实施例提供一种上行数据传输设备80，具体用于实现图3至图7所述的实施例描述的方法，该设备可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片或芯片中用于执行相关方法功能的一部分，该设备的结构如图8所示，包括收发器801以 及处理器802等物理器件，其中处理器802，可以是一个中央处理单元(英文：central processing unit，简称CPU)、微处理器、专用集成电路、可编程逻辑电路、大规模集成电路、或者为数字处理单元等等。收发器801用于终端设备和其他设备进行数据收发，收发器801可以为射频收发器件，主要用于将处理器802处理后的基带信号调制成高频无线信号发送出去，并将接收到的高频无线信号处理成基带数据信号发送处理器802进行处理。该设备还可以包括存储器803，用于存储处理器802执行的程序，当然还可以存储终端设备需要的一些其他数据等。存储器803可以是易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器803也可以是非易失性存储器(英文：non-volatile memory)，例如只读存储器(英文：read-only memory，缩写：ROM)，快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)、或者存储器803是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器803可以是上述存储器的组合。
本申请实施例中不限定上述处理器802、存储器803以及收发器801之间的具体连接介质。本申请实施例在图8中仅以存储器803、处理器802以及收发器801之间通过总线804连接为例进行说明，总线在图8中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图8中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
处理器802可以是专用硬件或运行软件的处理器，当处理器802可以运行软件时，处理器802读取存储器803存储的指令，并在所述指令的驱动下，执行之前实施例中涉及的方法。
具体地，收发器801接收接入网下发的第一调度授权，所述第一调度授权用于授权终端设备可以基于包复制模式在第一空口路径传输PDCP PDU。处理器802响应于所述收发器801接收的所述第一调度授权，获得在所述第一空口路径上向所述接入网发送的PDCPPDU，所述收发器801将处理器802获得的PDCPPDU在所述第一空口路径上传输给所述接入网；处理器802记录在所述第一空口路径上的第一发送记录。
后续，所述收发器801接收所述接入网下发的第二调度授权，所述第二调度授权用于授权终端设备可以基于包复制模式在第二空口路径传输PDCP PDU。所述处理器802响应于所述收发器801接收的所述第二调度授权，获得需要在所述第二空口路径上向所述接入网发送的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU；所述收发器801将处理器802获得的至少一个待发送PDU在所述第二空口路径上传输给所述接入网。
一种具体实现方式中，所述处理器802可以在响应所述第二调度授权的前一个调度授权时记录在所述第二空口路径上的第二发送记录。从而，所述处理器802可以根据所述第一发送记录调整所述第二发送记录来得到所述至少一个待发送PDU。具体地，所述第一发送记录可以包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序 列号小于等于所述第二PDU的序列号。所述第二发送记录可以包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三PDU的序列号小于等于所述第四PDU的序列号。
基于上述第一发送记录和第二发送记录，一种实现方式中，所述处理器802具体可以在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
基于上述第一发送记录和第二发送记录，另一种实现方式，所述处理器802也可以在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
在收发器801接收所述第二调度授权之前可能接收了来自所述接入网的至少一个调度授权，所述至少一个调度授权均是用于授权终端设备可以基于包复制模式在第二空口路径传输PDCP PDU，其中，每个调度授权中包括需要发送的PDU的总数量。因此，所述处理器802，还可以在响应于所述收发器801接收的所述第二调度授权之前，根据所述收发器801在所述第二调度授权之前接收的来自所述接入网的所述至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，然后为所述第二空口路径预先生成所述总数量的PDU。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
当实施例提供的方法以软件或硬件或软硬件结合实现的时候，其对应的装置可以包括多个功能模块，每个功能模块可以包括软件、硬件或其结合。具体地，该装置如图9所示，其可以至于所述终端设备中。包括第一发送模块901、第一记录模块902以及第二发送模块903，其中：第一发送模块901，用于响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向所述接入网发送分组数据汇聚协议PDCP的协议数据单元PDU，所述第一调度授权对应于所述第一空口路径；第一记录模块902，用于记录在所述第一空口路径上的第一发送记录；第二发送模块903，用于响应于来自所述接入网的第二调度授权，在所述包复制模式下的第二空口路径上确定至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一记录模块902记录的所述第一发送记录所指示的已被所述接入网确认的PDU，所述第二调度授权对应于所述第二空口路径；并在所述 第二空口路径上向所述接入网发送所述确定模块确定的所述至少一个待发送PDU。
可选的，所述装置还包括第二记录模块904；所述第二记录模块904，用于记录在所述第二空口路径上的第二发送记录；所述第二发送模块903，在确定至少一个待发送PDU时，具体用于：根据所述第一记录模块902记录的所述第一发送记录调整所述第二记录模块904记录的所述第二发送记录来得到所述至少一个待发送PDU。
具体的，所述第一发送可以记录包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序列号小于等于所述第二PDU的序列号；所述第二发送记录可以包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三PDU的序列号小于等于所述第四PDU的序列号。
基于上述第一发送记录和第二发送记录，一种实现方式中，所述第二发送模块903具体可以在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
基于上述第一发送记录和第二发送记录，另一种实现方式，所述第二发送模块903也可以在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
可选的，所述装置还包括预生成模块905；所述预生成模块905，用于在所述第二发送模块903响应于来自所述接入网的第二调度授权之前，根据在所述第二调度授权之前来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；并为所述第二空口路径生成所述总数量的PDU。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。其中，集成的模块既可以采用硬件的形式实现时，第一发送模块901，第一记录模块902，第二 发送模块903，第二记录模块904以及预生成模块905对应的实体硬件可以是处理器802。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。例如，对于设备或装置实施例而言，其部分处理过程可参考之前的方法实施例。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (13)

  1. 一种上行数据传输方法，其特征在于，所述方法包括：
    响应于来自接入网的第一调度授权，在包复制模式下的第一空口路径上向所述接入网发送分组数据汇聚协议PDCP的协议数据单元PDU，所述第一调度授权对应于所述第一空口路径；
    记录在所述第一空口路径上的第一发送记录；
    响应于来自所述接入网的第二调度授权，确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU，所述第二调度授权对应于所述第二空口路径；
    在所述第二空口路径上向所述接入网发送所述至少一个待发送PDU。
  2. 如权利要求1所述的方法，其特征在于，所述确定至少一个待发送PDU包括：根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到所述至少一个待发送PDU。
  3. 如权利要求2所述的方法，其特征在于，所述第一发送记录包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序列号小于等于所述第二PDU的序列号；
    所述第二发送记录包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三PDU的序列号小于等于所述第四PDU的序列号。
  4. 如权利要求3所述的方法，其特征在于，所述根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到至少一个待发送PDU包括：
    在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；
    将所述第三PDU的序列号调整为所述第一PDU的序列号；
    将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
  5. 如权利要求3所述的方法，其特征在于，所述根据所述第一发送记录调整在所述第二空口路径上的第二发送记录来得到至少一个待发送PDU包括：
    在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被 所述接入网确认的PDU进行释放；
    将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；
    将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
  6. 如权利要求1至5任一项所述的方法，其特征在于，在确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU之前，还包括：根据在所述第二调度授权之前来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；
    为所述第二空口路径生成所述总数量的PDU，所述确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU是基于所述总数量的PDU的。
  7. 一种上行数据传输设备，其特征在于，包括：
    收发器，用于接收接入网下发的第一调度授权，所述第一调度授权对应于包复制模式下的第一空口路径；
    处理器，用于响应于所述收发器接收的所述第一调度授权，通过所述收发器在所述第一空口路径上向所述接入网发送分组数据汇聚协议PDCP的协议数据单元PDU；
    所述处理器，还用于记录在所述第一空口路径上的第一发送记录；
    所述收发器，还用于接收所述接入网下发的第二调度授权，所述第二调度授权对应于所述包复制模式下的第二空口路径；
    所述处理器，还用于响应于所述收发器接收的所述第二调度授权，确定在所述第二空口路径上的至少一个待发送PDU，其中，所述至少一个待发送PDU中排除了所述第一发送记录所指示的已被所述接入网确认的PDU；
    所述处理器，还用于通过所述收发器在所述第二空口路径上向所述接入网发送所述至少一个待发送PDU。
  8. 如权利要求7所述的设备，其特征在于，所述处理器，还用于记录在所述第二空口路径上的第二发送记录，
    并在确定至少一个待发送PDU时，根据所述第一发送记录调整所述第二发送记录来得到所述至少一个待发送PDU。
  9. 如权利要求8所述的设备，其特征在于，所述第一发送记录包括：第一PDU的序列号和在所述第一PDU之后已在所述第一空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第二PDU的序列号和在所述第二PDU之后未在所述第一空口路径上发送的PDU的序列号；其中，所述第一PDU是已在所述第一空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第二PDU是已在所述第一空口路径上发送的最后一个PDU的下一PDU，所述第一PDU的序列号小于等于所述第二PDU的序列号；
    所述第二发送记录包括：第三PDU的序列号和在所述第三PDU之后已在所述第二空口路径上发送的、且未被所述接入网确认的PDU的序列号，以及第四PDU的序列号和在所述第四PDU之后未在所述第二空口路径上发送的PDU的序列号；其中，所述第三PDU是已在所述第二空口路径上发送的、且被所述接入网确认的最后一个PDU的下一PDU，所述第四PDU是已在所述第二空口路径上发送的最后一个PDU的下一PDU，所述第三 PDU的序列号小于等于所述第四PDU的序列号。
  10. 如权利要求9所述的设备，其特征在于，所述处理器，在根据所述第一发送记录调整所述第二发送记录来得到所述至少一个待发送PDU时，具体用于：
    在所述第一PDU的序列号大于所述第三PDU的序列号，且小于所述第四PDU的序列号时，将在所述第三PDU的序列号与所述第一PDU的序列号之间的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；
    将所述第三PDU的序列号调整为所述第一PDU的序列号；
    将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
  11. 如权利要求9所述的设备，其特征在于，所述处理器，在根据所述第一发送记录调整所述第二发送记录来得到所述至少一个待发送PDU时，具体用于：
    在所述第一PDU的序列号大于所述第四PDU的序列号时，将在所述第一PDU的序列号之前的序列号对应的PDU，以及在所述第一PDU之后、所述第一发送记录指示已被所述接入网确认的PDU进行释放；
    将所述第三PDU的序列号和第四PDU的序列号调整为所述第一PDU的序列号；
    将从所述第四PDU的序列号开始的至少一个序列号对应的PDU确定为所述至少一个待发送PDU。
  12. 如权利要求7至11任一项所述的设备，其特征在于，所述处理器，还用于：
    在确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU之前，根据所述收发器在所述第二调度授权之前接收的来自所述接入网的至少一个调度授权，预测在响应所述第二调度授权时需要在所述第二空口路径上发送的PDU的总数量，其中，所述至少一个调度授权对应于所述第二空口路径，且每个调度授权中包括需要发送的PDU的数量；
    并为所述第二空口路径生成所述总数量的PDU，所述确定在所述包复制模式下的第二空口路径上的至少一个待发送PDU是基于所述总数量的PDU的。
  13. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储程序，所述程序在被一个或多个处理器读取并执行时可实现权利要求1至6任一项所述的方法。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1883165A (zh) * 2003-10-14 2006-12-20 高通股份有限公司 用于多个信道上的数据通信的方法和设备
CN107147479A (zh) * 2017-04-27 2017-09-08 电信科学技术研究院 一种进行重复传输控制的方法和设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109600853B (zh) * 2017-09-30 2021-03-05 华为技术有限公司 一种上行数据传输方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1883165A (zh) * 2003-10-14 2006-12-20 高通股份有限公司 用于多个信道上的数据通信的方法和设备
CN107147479A (zh) * 2017-04-27 2017-09-08 电信科学技术研究院 一种进行重复传输控制的方法和设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "PDCP UL Data Split", 3GPP TSG-RAN WG2 #98-AH, R2-1707153, 29 June 2017 (2017-06-29), XP051301646 *
NOKIA ET AL.: "Duplication Impacts to PDCP", 3GPP TSG-RAN WG2 #99, R2-1707990, 25 August 2017 (2017-08-25), XP051317903 *

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