WO2019028824A1 - 用于传输数据的方法、终端设备和网络设备 - Google Patents

用于传输数据的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019028824A1
WO2019028824A1 PCT/CN2017/097056 CN2017097056W WO2019028824A1 WO 2019028824 A1 WO2019028824 A1 WO 2019028824A1 CN 2017097056 W CN2017097056 W CN 2017097056W WO 2019028824 A1 WO2019028824 A1 WO 2019028824A1
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WIPO (PCT)
Prior art keywords
downlink data
terminal device
network device
data packet
quality
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PCT/CN2017/097056
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/097056 priority Critical patent/WO2019028824A1/zh
Priority to CN201780046918.1A priority patent/CN109565715A/zh
Publication of WO2019028824A1 publication Critical patent/WO2019028824A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters

Definitions

  • the embodiments of the present application relate to the field of communications, and, more particularly, to a method, a terminal device, and a network device for transmitting data.
  • the Service Data Adaptation Protocol is added to the Radio Access Network (RAN) side to complete the Quality of Service (QoS) data flow.
  • DRB Data Radio Bearer
  • the mapping of QoS flow to DRB is based on downlink data mapping rules. That is to say, each downlink data packet carries the identifier of the QoS flow (Identity, ID) to enable the terminal to record the mapping of the QoS flow to the DRB, and the terminal device can perform the uplink data packet transmission based on the saved mapping relationship.
  • the downlink data packets belonging to the same QoS flow in the solution must carry the identifier of the QoS flow, resulting in a relatively large network overhead.
  • the embodiments of the present application provide a method, a terminal device, and a network device for transmitting data, which are beneficial to reducing network overhead.
  • a method for transmitting data includes: the terminal device successfully receiving, by the network device, at least one downlink data that belongs to the first quality of service data stream and is carried in the first data radio bearer DRB. a packet, each downlink data packet of the at least one downlink data packet carries an identifier QFI for identifying the first quality of service data stream, and the terminal device indicates, according to the at least one downlink data packet, that the network device stops subsequently belonging to the identifier The QFI is carried in a downlink packet of the first quality of service data stream.
  • the network device After the downlink data packet belonging to the same QoS flow is successfully received, the network device is instructed to stop carrying the QFI in the downlink data packet of the subsequent QoS flow, which is beneficial to reducing network overhead.
  • the at least one downlink data packet is a downlink data packet.
  • the at least one downlink data packet is multiple downlink data packets.
  • the method further includes: after successfully receiving one downlink data packet in the at least one downlink data packet, the terminal device feeds back ACK information to the network device, where the ACK information is used to indicate corresponding The downstream packet is received correctly.
  • the terminal device may also feed back the ACK information of the multiple downlink data packets to the network device once after receiving the multiple downlink data packets.
  • the terminal device instructs the network device to stop carrying the QFI in a downlink data packet that belongs to the first quality of service data stream, including: the terminal device passes the The ACK information corresponding to the last one of the received at least one downlink data packet indicates that the network device stops subsequently carrying the QFI in the downlink data packet belonging to the first quality of service data stream.
  • the terminal device indicates to the network device that stopping the carrying of the QFI may be other indication information different from the ACK information.
  • the ACK information is an ACK of the radio link control RLC layer.
  • the method further includes: the terminal device storing a mapping relationship between the first DRB and the first quality of service data stream.
  • the method further includes: the terminal device sending an uplink data packet to the network device according to the mapping relationship.
  • a second aspect provides a method for transmitting data, the method comprising: the network device transmitting, to the terminal device, N downlink data packets belonging to the first quality of service data stream carried by the first data radio bearer DRB, the N Each of the M downlink data packets in the downlink data packet does not carry an identifier QFI for identifying the first quality of service data stream, and N and M are both positive integers and M is less than N.
  • the M downlink data packets are the last M downlink data packets of the N downlink data packets sent by the network device.
  • the method further includes: the network device according to the indication of the terminal device Stop the carrying of the QFI in the M downlink data packets.
  • the network device stops carrying the QFI in the M downlink data packets according to the indication of the terminal device, including: the network device according to the finger of the terminal device The determining that the terminal device has stored the mapping relationship between the first DRB and the first quality of service data stream; the network device stops carrying the QFI in the M downlink data packets.
  • the method further includes: receiving, by the network device, ACK information that is sent by the terminal device and corresponding to each downlink data packet in the (NM) downlink data packet, where the ACK information is used to indicate corresponding The downstream packet is received correctly.
  • the network device determines, according to the indication of the terminal device, that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data flow, including: receiving, by the network device, according to the received The last one of the ACK information determines that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data stream.
  • the ACK information is an ACK of the radio link control RLC layer.
  • the method further includes: receiving, by the network device, an uplink data packet sent by the terminal device according to the mapping relationship.
  • (N-M) is 1.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • a network device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • a computer storage medium for storing the method in any of the above possible implementations of the first aspect or the first aspect, or any possible implementation of the second or second aspect
  • Computer software instructions for use in the method of the present invention which comprise a program designed to perform the above aspects.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the first aspect or the optional implementation of the first aspect, or the second Aspect or method of any alternative implementation of the second aspect.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 shows a process of mapping QoS flow to DRB in the embodiment of the present application.
  • FIG. 3 shows a schematic block diagram of a method for transmitting data in an embodiment of the present application.
  • FIG. 4 shows another schematic block diagram of a method for transmitting data in an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device of an embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of a network device of an embodiment of the present application.
  • FIG. 7 is another schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 8 shows another schematic block diagram of a network device of an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc.
  • SCMA sparse code multiple access
  • LDS Density Signature
  • the SCMA system and the LDS system may also be referred to as other names in the field of communication; further, the present application is implemented
  • the technical solution of the example can be applied to a multi-carrier transmission system using non-orthogonal multiple access technology, for example, Orthogonal Frequency Division Multiplexing (OFDM), filter bank using non-orthogonal multiple access technology Multi-carrier (Filter Bank Multi-Carrier, FBMC), Generalized Frequency Division Multiplexing (GFDM), Filtered Orthogonal Frequency Division Multiplexing (Filtered-OFDM) system, and the like.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FBMC non-orthogonal multiple access technology Multi-carrier
  • GFDM Generalized Frequency Division Multiplexing
  • Filtered-OFDM Filtered Orthogonal Frequency Division Multiplexing
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system. And may be an evolved base station (eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be The embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • CRAN cloud radio access network
  • the embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a terminal device 10 and a network device 20.
  • the network device 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.
  • the RAN side adds a new SDAP layer on the upper layer of the Packet Data Convergence Protocol (PDCP) layer to complete the mapping of QoS flow to DRB.
  • PDCP Packet Data Convergence Protocol
  • the network protocol Internet Protocol, IP
  • IP Internet Protocol
  • the SDAP maps the data packet from the QoS flow to the radio bearer, specifically the DRB.
  • the data packet is delivered to the DRB through the mapping.
  • the PDCP layer performs processing.
  • the mapping of QoS flow to DRB can be directly indicated to the terminal through Radio Resource Control (RRC). It may also be obtained by using a QoS mapping of the reflection.
  • RRC Radio Resource Control
  • the network device may carry the identifier ID of the QoS flow in the downlink data packets belonging to the same QoS flow, and after the terminal device successfully obtains each downlink data packet, The mapping of the QoS flow to the DRB can be recorded.
  • the uplink data packet is directly sent according to the recorded mapping relationship. Since the downlink data packet belonging to the same QoS flow in the existing solution carries the identifier of the QoS flow, the network overhead is relatively large.
  • FIG. 3 shows a schematic block diagram of a method 100 for transmitting data in an embodiment of the present application. As shown in FIG. 3, the method 100 includes some or all of the following:
  • the terminal device successfully receives, by the network device, at least one downlink data packet that belongs to the first quality of service data stream that is carried in the first data radio bearer DRB, where each downlink data packet in the at least one downlink data packet is carried.
  • An identifier QFI identifying the first quality of service data stream.
  • the terminal device indicates, according to the at least one downlink data packet, that the network device stops subsequently carrying the QFI in a downlink data packet that belongs to the first quality of service data stream.
  • the network device mentioned above carries the QoS flow ID (QFI) of the QoS data flow in each downlink data packet.
  • the network device belongs to the downlink data packet belonging to the same QoS flow.
  • the QFI carrying the QoS flow does not stop the QFI in the downlink data packet until the terminal device sends the indication information to the network device.
  • the terminal device may send information to the network device after successfully receiving one or more downlink data packets.
  • the method for transmitting data in the embodiment of the present application after successfully receiving the downlink data packet belonging to the same QoS flow, indicates to the network device to stop carrying the QFI in the downlink data packet of the subsequent QoS flow, which is beneficial to Reduce network overhead.
  • the at least one downlink data packet is a downlink data packet.
  • the terminal device may stop receiving the QFI in the downlink data packet that belongs to the QoS flow after the first downlink data packet of the QoS flow sent by the network device is successfully received.
  • the at least one downlink data packet is multiple downlink data packets.
  • the terminal device may stop receiving the QFI in the downlink data packet that belongs to the QoS flow after the network device successfully receives the first downlink data packets of the QoS flow sent by the network device.
  • the terminal device indicates to the network device after successfully receiving the first few downlink data packets, which can be determined by the terminal device.
  • the method further includes: after successfully receiving one downlink data packet in the at least one downlink data packet, the terminal device feeds back ACK information to the network device, where the ACK information is used. Indicates that the corresponding downstream packet is received correctly.
  • the terminal device after successfully receiving the downlink data packet, the terminal device feeds back the ACK information to the network device, and the terminal device can feed back an ACK information to the network device every time a downlink data packet is received, and the terminal device can also receive the ACK information.
  • the network device After receiving the ACK information of the multiple downlink data packets to the network device, the network device knows that the corresponding downlink data packet is correctly received by the terminal device after receiving the corresponding ACK, and further, the network device It is possible to not carry QFI in subsequent downlink packets.
  • the network device may also stop receiving the QFI in the subsequent downlink data packet as long as the ACK information of the multiple downlink data packets sent by the terminal device is received.
  • the terminal device instructs the network device to stop carrying the QFI in a downlink data packet that belongs to the first quality of service data stream, including: the terminal The device indicates, by the ACK information corresponding to the last one of the received at least one downlink data packet, that the network device stops carrying the QFI in the downlink data packet that belongs to the first quality of service data stream.
  • the terminal device If the terminal device receives the first downlink data packet belonging to a certain QoS flow, it feeds back ACK information to the network device, and the ACK information can be used to indicate that the network device stops subsequently in the downlink data packet belonging to the same QoS flow. Carry the QFI of the QoS flow. For example, if the terminal device determines to receive the first five downlink data packets belonging to a certain QoS flow, the ACK of the fifth downlink data packet is used to indicate that the network device stops subsequently carrying in the downlink data packet belonging to the same QoS flow.
  • the QFI of the QoS flow that is, the ACK of the first four downlink packets is not used to instruct the network device to stop subsequently carrying the QFI of the QoS flow in the downlink packets belonging to the same QoS flow. Then, the network device can stop carrying the QFI in the subsequent downlink data packet after receiving the fifth ACK.
  • the foregoing ACK for the data packet may be an ACK of a Radio Link Control (RLC), and specifically, may be an automatic retransmission request of the RLC layer (Automatic Repeat request, ARQ) is used to feed back the ACK information correctly received by this data.
  • RLC Radio Link Control
  • ARQ Automatic Repeat request
  • the terminal device indicates to the network device that the stop carrying QFI may be other indication information different from the ACK information, which is not limited in this embodiment of the present application.
  • the terminal device may, according to the QFI, associate the DRB that carries the downlink data packet with the QoS flow of the downlink data packet. That is to say, the terminal device can store a correspondence table between the DRB and the QoS flow, and each time a corresponding relationship is added, the corresponding relationship is stored in the correspondence table.
  • the method further includes: the terminal device sending an uplink data packet to the network device according to the mapping relationship.
  • mapping relationship between the QoS flow and the DRB corresponding to the same QoS flow may be the same. That is, after the terminal device obtains the mapping relationship between the QoS flow and the DRB, the terminal device can also know the DRB. What is the required QoS information, and when selecting a DRB to carry the uplink data packet, the QoS information corresponding to the DRB is selected to transmit the uplink data to the network device or the terminal device selects a DRB to carry the uplink data packet, You can know what its corresponding QoS flow is.
  • FIG. 4 shows a schematic block diagram of a method 200 for transmitting data in an embodiment of the present application. As shown in FIG. 4, the method 200 includes:
  • the network device sends, to the terminal device, N downlink data packets that belong to the first quality of service data stream that are carried by the first data radio bearer DRB, and each downlink data of the M downlink data packets in the N downlink data packets.
  • the packet does not carry an identifier QFI for identifying the first quality of service data stream, N and M are both positive integers and M is less than N.
  • the network device may only carry the QFI in some downlink data packets. For example, the network device may only use the first few downlink data packets.
  • the QFI is carried in, and the default terminal device can obtain the mapping relationship between the DRB and the QoS flow from the first few downlink data packets.
  • the method for transmitting data in the embodiment of the present application only carries the QFI in part of the downlink data packets belonging to the same QoS flow, which is beneficial to reducing network overhead.
  • the M downlink data packets are the last M downlink data packets of the N downlink data packets sent by the network device.
  • the network device sends the N times to the terminal device.
  • the method further includes: stopping, by the network device, carrying the QFI in the M downlink data packets according to the indication of the terminal device.
  • the network device may receive the indication information that is sent by the terminal device and stops carrying the QFI in the downlink data packet that belongs to the QoS flow after the downlink data packet that belongs to the same QoS flow is sent to the terminal device.
  • the network device stops carrying the QFI in the M downlink data packets according to the indication of the terminal device, where the network device determines, according to the indication of the terminal device, the terminal device A mapping relationship between the first DRB and the first quality of service data stream is stored; the network device stops carrying the QFI in the M downlink data packets.
  • the network device may first determine that the terminal device has stored the mapping relationship between the corresponding DRB and the QoS flow according to the indication of the terminal device, and then the network device stops carrying the QFI in the downlink data packet that belongs to the QoS flow.
  • the network device receives, by the terminal device, ACK information corresponding to each downlink data packet in the (NM) downlink data packet, where the ACK information is used to indicate corresponding downlink data. The package was received correctly.
  • the network device determines, according to the indication of the terminal device, that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data flow, including: receiving, by the network device according to the receiving The last one of the ACK information is determined to determine that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data stream.
  • the network device may consider that the terminal device has stored the mapping relationship between the DRB and the QoS flow, and then stops belonging to the QoS.
  • the downstream packet of flow carries QFI.
  • the network device may also consider that the terminal device has stored the mapping relationship between the DRB and the QoS flow, and then stops the downlink data packet belonging to the QoS flow. Carry QFI, where N is a positive integer.
  • the ACK information is an ACK of the radio link control RLC layer.
  • the method further includes: the network device receiving an uplink data packet sent by the terminal device according to the mapping relationship.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and A and B exist separately. There are three cases of B.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 5 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 300 includes:
  • the receiving unit 310 is configured to successfully receive, by the network device, at least one downlink data packet that belongs to the first quality of service data stream that is carried in the first data radio bearer DRB, and each downlink data packet in the at least one downlink data packet Carrying an identifier QFI for identifying the first quality of service data stream;
  • the indicating unit 320 is configured to, according to the at least one downlink data packet, instruct the network device to stop subsequently carrying the QFI in a downlink data packet that belongs to the first quality of service data stream.
  • the terminal device for transmitting data in the embodiment of the present application indicates to the network device to stop carrying the QFI in the downlink data packet of the subsequent QoS flow after successfully receiving the downlink data packet belonging to the same QoS flow. Helps reduce network overhead.
  • the at least one downlink data packet is a downlink data packet.
  • the terminal device further includes: a feedback unit, configured to feed back ACK information, the ACK, to the network device after successfully receiving one downlink data packet in the at least one downlink data packet The information is used to indicate that the corresponding downstream data packet was received correctly.
  • a feedback unit configured to feed back ACK information, the ACK, to the network device after successfully receiving one downlink data packet in the at least one downlink data packet The information is used to indicate that the corresponding downstream data packet was received correctly.
  • the indicating unit is specifically configured to: indicate, by the ACK information corresponding to the last one of the received at least one downlink data packet, that the network device stops subsequently belonging to the first The QFI is carried in the downlink data packet of the QoS data stream.
  • the ACK information is an ACK of the radio link control RLC layer.
  • the terminal device further includes: a storage unit, configured to store a mapping relationship between the first DRB and the first quality of service data stream.
  • the terminal device further includes: a sending unit, configured to send an uplink data packet to the network device according to the mapping relationship.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 300 respectively implement the terminal in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • FIG. 6 shows a schematic block diagram of a network device 400 of an embodiment of the present application.
  • the network device 400 includes:
  • the generating unit 410 is configured to generate N downlink data packets that belong to the first quality of service data flow, and each of the M downlink data packets in the N downlink data packets is not carried to identify the first service
  • the identification of the quality data stream QFI, N and M are positive integers and M is less than N;
  • the sending unit 420 is configured to send the N downlink data packets to the terminal device by using the first data radio bearer DRB.
  • the network device for transmitting data in the embodiment of the present application only carries the QFI in part of the downlink data packets belonging to the same QoS flow, which is beneficial to reducing network overhead.
  • the M downlink data packets are the last M downlink data packets of the N downlink data packets sent by the network device.
  • the network device further includes: a stopping unit, configured to send, after the sending unit sends the first (NM) downlink data packets of the N downlink data packets to the terminal device, according to The indication of the terminal device stops carrying the QFI in the M downlink data packets.
  • a stopping unit configured to send, after the sending unit sends the first (NM) downlink data packets of the N downlink data packets to the terminal device, according to The indication of the terminal device stops carrying the QFI in the M downlink data packets.
  • the stopping unit is specifically configured to: determine, according to the indication of the terminal device, that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data flow;
  • the QFI is carried in the M downlink data packets.
  • the network device further includes: a first receiving unit, configured to receive, by the terminal device, ACK information corresponding to each downlink data packet in the (NM) downlink data packet, where The ACK information is used to indicate that the corresponding downlink data packet is correctly received.
  • the stopping unit is specifically configured to: determine, according to the last received ACK information, that the terminal device has stored a mapping relationship between the first DRB and the first quality of service data stream.
  • the ACK information is an ACK of the radio link control RLC layer.
  • the network device further includes: a second receiving unit, configured to receive an uplink data packet that is sent by the terminal device according to the mapping relationship.
  • (N-M) is 1.
  • the network device 400 may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 400 respectively implement the network in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • the embodiment of the present application further provides a terminal device 500, which may be the terminal device 300 in FIG. 5, which can be used to execute the content of the terminal device corresponding to the method 100 of FIG.
  • the terminal device 500 includes an input interface 510, an output interface 520, a processor 530, and a memory 540.
  • the input interface 510, the output interface 520, the processor 530, and the memory 540 can be connected by a bus system.
  • the memory 540 is for storing programs, instructions or code.
  • the processor 530 is configured to execute a program, an instruction or a code in the memory 540 to control the input interface 510 to receive a signal, control the output interface 520 to send a signal, and complete the operations in the foregoing method embodiments.
  • the terminal device in the embodiment of the present application by successfully receiving the downlink data packet belonging to the same QoS flow, and indicating to the network device to stop carrying the QFI in the downlink data packet of the subsequent QoS flow, is beneficial to reducing network overhead.
  • the processor 530 may be a central processing unit (CPU), and the processor 530 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 540 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 540 may also include a non-volatile random access memory. For example, the memory 540 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the content of the method disclosed in the embodiment of the present application is combined. It can be directly implemented as a hardware processor or completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the indication unit, the feedback unit, and the transmission unit of the terminal device 300 may be implemented by the output interface 520 in FIG. 7, and the receiving unit of the terminal device 300 may be implemented by the input interface 510 in FIG.
  • the storage unit of the terminal device 300 can be implemented by the processor 530 in FIG.
  • the embodiment of the present application further provides a network device 600, which may be the network device 400 in FIG. 6, which can be used to execute the content of the network device corresponding to the method 200 in FIG. .
  • the network device 600 includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected by a bus system.
  • the memory 640 is used to store programs, instructions or code.
  • the processor 630 is configured to execute a program, an instruction or a code in the memory 640 to control the input interface 610 to receive a signal, control the output interface 620 to send a signal, and complete the operations in the foregoing method embodiments.
  • the network device in the embodiment of the present invention only carries the QFI in part of the downlink data packets belonging to the same QoS flow, which is beneficial to reducing network overhead.
  • the processor 630 may be a central processing unit (CPU), and the processor 630 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiment of the present application is combined. It can be directly implemented as a hardware processor or completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the transmitting unit in the network device 400 can be implemented by the output interface 620 in FIG. 8, and the first receiving unit and the second receiving unit in the network device 400 can be implemented by the input interface 610 in FIG.
  • the generating unit and the stopping unit in the network device 400 can be implemented by the processor 630 in FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

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Abstract

本申请实施例公开了一种用于传输数据的方法、终端设备和网络设备，该方法包括：终端设备成功接收到网络设备发送的承载于第一数据无线承载DRB中的属于第一服务质量数据流的至少一个下行数据包，该至少一个下行数据包中的每个下行数据包携带用于标识该第一服务质量数据流的标识QFI；该终端设备根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。本申请实施例的方法、终端设备和网络设备，有利于降低网络开销。

Description

用于传输数据的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种用于传输数据的方法、终端设备和网络设备。
背景技术
在5G系统中，无线接入网(Radio Access Network，RAN)侧新增加了服务数据适应协议(Service Data Adaptation Protocol，SDAP)，用于完成服务质量(Quality of Service，QoS)数据流(flow)到数据无线承载(Data Radio Bearer，DRB)的映射。具体地，对于上行数据而言，其QoS flow到DRB的映射是根据下行数据映射规则而定的。也就是说每个下行数据包都会携带QoS flow的标识(Identity，ID)来使得终端记录QoS flow到DRB的映射，终端设备就可以基于保存的映射关系来进行上行数据包的发送，由于现有的方案中属于同一QoS flow的下行数据包都要携带该QoS flow的标识，从而导致网络开销比较大。
发明内容
有鉴于此，本申请实施例提供了一种用于传输数据的方法、终端设备和网络设备，有利于降低网络开销。
第一方面，提供了一种用于传输数据的方法，该方法包括：终端设备成功接收到网络设备发送的承载于第一数据无线承载DRB中的属于第一服务质量数据流的至少一个下行数据包，该至少一个下行数据包中的每个下行数据包携带用于标识该第一服务质量数据流的标识QFI；该终端设备根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
通过在成功接收到属于同一个QoS flow的下行数据包之后向网络设备指示停止在后续同一个QoS flow的下行数据包中携带QFI，有利于降低网络开销。
在一种可能的实现方式中，该至少一个下行数据包为一个下行数据包。
可选地，该至少一个下行数据包为多个下行数据包。
在一种可能的实现方式中，该方法还包括：该终端设备每成功接收到该至少一个下行数据包中的一个下行数据包后，向该网络设备反馈ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
终端设备也可以在接收到多个下行数据包后，一次向网络设备反馈该多个下行数据包的ACK信息。
在一种可能的实现方式中，该终端设备根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI，包括：该终端设备通过与接收到的该至少一个下行数据包中的最后一个数据包对应的ACK信息指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
可选地，终端设备向网络设备指示停止携带QFI可以是不同于ACK信息的其他指示信息。
在一种可能的实现方式中，该ACK信息为无线链路控制RLC层的ACK。
在一种可能的实现方式中，该方法还包括：该终端设备存储该第一DRB与该第一服务质量数据流的映射关系。
在一种可能的实现方式中，该方法还包括：该终端设备根据该映射关系，向该网络设备发送上行数据包。
第二方面，提供了一种用于传输数据的方法，该方法包括：网络设备向终端设备发送承载于第一数据无线承载DRB的属于第一服务质量数据流的N个下行数据包，该N个下行数据包中的M个下行数据包中的每个下行数据包不携带用于标识该第一服务质量数据流的标识QFI，N和M均为正整数且M小于N。
只在属于同一QoS flow的部分下行数据包中携带QFI，有利于降低网络开销。
在一种可能的实现方式中，该M个下行数据包为该网络设备发送的该N个下行数据包中的后M个下行数据包。
在一种可能的实现方式中，在该网络设备向该终端设备发送该N个下行数据包中的前(N-M)个下行数据包之后，该方法还包括：该网络设备根据该终端设备的指示，停止在该M个下行数据包中携带该QFI。
在一种可能的实现方式中，该网络设备根据该终端设备的指示，停止在该M个下行数据包中携带该QFI，包括：该网络设备根据该终端设备的指 示，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系；该网络设备停止在该M个下行数据包中携带该QFI。
在一种可能的实现方式中，该方法还包括：该网络设备接收该终端设备发送的与该(N-M)个下行数据包中每个下行数据包对应的ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
在一种可能的实现方式中，该该网络设备根据该终端设备的指示，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系，包括：该网络设备根据接收到的最后一个该ACK信息，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系。
在一种可能的实现方式中，该ACK信息为无线链路控制RLC层的ACK。
在一种可能的实现方式中，该方法还包括：该网络设备接收该终端设备基于该映射关系发送的上行数据包。
在一种可能的实现方式中，(N-M)为1。
第三方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，提供了一种网络设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第八方面，提供了一种包括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第一方面的任一可选的实现方式中的方法，或者上述第二方面或第二方面的任一可选的实现方式中的方法。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了本申请实施例中的QoS flow映射到DRB的过程。
图3示出了本申请实施例的用于传输数据的方法的示意性框图。
图4示出了本申请实施例的用于传输数据的方法的另一示意性框图。
图5示出了本申请实施例的终端设备的示意性框图。
图6示出了本申请实施例的网络设备的示意性框图。
图7示出了本申请实施例的终端设备的另一示意性框图。
图8示出了本申请实施例的网络设备的另一示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、LTE系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、新无线(New Radio，NR)或未来的5G系统等。
特别地，本申请实施例的技术方案可以应用于各种基于非正交多址接入技术的通信系统，例如稀疏码多址接入(Sparse Code Multiple Access，SCMA)系统、低密度签名(Low Density Signature，LDS)系统等，当然SCMA系统和LDS系统在通信领域也可以被称为其他名称；进一步地，本申请实施 例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统，例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)、滤波器组多载波(Filter Bank Multi-Carrier，FBMC)、通用频分复用(Generalized Frequency Division Multiplexing，GFDM)、滤波正交频分复用(Filtered-OFDM，F-OFDM)系统等。
本申请实施例中的终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是本申请实施例一个应用场景的示意图。图1中的通信系统可以包括终端设备10和网络设备20。网络设备20用于为终端设备10提供通信服务并接入核心网，终端设备10通过搜索网络设备20发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备10与网络设备20之间的蜂窝链路进行的上/下行传输。
下面将结合图2简单描述一下本申请实施例中的QoS flow映射到DRB的过程。在5G系统中，RAN侧在分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层的上层新增加了SDAP层，用于完成QoS flow到DRB的映射，具体地，如图2所示，网络协议(Internet Protocol，IP)层将数据包从 IP flow映射到QoS flow，再由SDAP将数据包从QoS flow映射到无线承载上，具体地为DRB，对于不同的QoS flow可以映射到同一个DRB上，并将数据包通过映射的DRB交给PDCP层进行处理。对于上行数据包来说，QoS flow到DRB的映射可以通过无线资源控制(Radio Resource Control，RRC)直接指示给终端。还可以是通过反射的QoS映射来获得，具体地，网络设备可以在属于同一个QoS flow的下行数据包中都携带该QoS flow的标识ID，终端设备在成功获取到每个下行数据包之后，都可以记录该QoS flow到DRB的映射，当有上行数据包需要发送时，直接根据记录的这种映射关系发送上行数据包。由于现有的方案中属于同于QoS flow的下行数据包都要携带该QoS flow的标识，从而导致网络开销比较大。
图3示出了本申请实施例的用于传输数据的方法100的示意性框图。如图3所示，该方法100包括以下部分或全部内容：
S110，终端设备成功接收到网络设备发送的承载于第一数据无线承载DRB中的属于第一服务质量数据流的至少一个下行数据包，该至少一个下行数据包中的每个下行数据包携带用于标识该第一服务质量数据流的标识QFI。
S 120，该终端设备根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
具体地，上述提及网络设备会在每个下行数据包中携带所属服务质量数据流的标识(QoS flow ID，QFI)，在本申请实施例中，网络设备在属于同一QoS flow的下行数据包中携带该QoS flow的QFI直到终端设备向网络设备发送指示信息为止，网络设备才停止在下行数据包中携带QFI。终端设备可以在成功接收到一个或者多个下行数据包之后，再向网络设备发送信息。
因此，本申请实施例的用于传输数据的方法，通过在成功接收到属于同一个QoS flow的下行数据包之后向网络设备指示停止在后续同一个QoS flow的下行数据包中携带QFI，有利于降低网络开销。
可选地，在本申请实施例中，该至少一个下行数据包为一个下行数据包。具体地，终端设备可以在成功接收到网络设备下发的某一个QoS flow的第一个下行数据包，就向网络设备指示后续属于该QoS flow的下行数据包中可以停止携带QFI。
可选地，在本申请实施例中，该至少一个下行数据包为多个下行数据包。 具体地，终端设备可以在成功接收到网络设备下发的某一个QoS flow的前几个下行数据包，就向网络设备指示后续属于该QoS flow的下行数据包中可以停止携带QFI。终端设备到底是在成功接收到前几个下行数据包后向网络设备指示，可以由终端设备自行决定。
可选地，在本申请实施例中，该方法还包括：该终端设备每成功接收到该至少一个下行数据包中的一个下行数据包后，向该网络设备反馈ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
本领域技术人员理解，终端设备在成功接收到下行数据包后，会向网络设备反馈ACK信息，终端设备可以每收到一个下行数据包就向网络设备反馈一个ACK信息，终端设备也可以在接收到多个下行数据包，一次向网络设备反馈该多个下行数据包的ACK信息，网络设备在接收到相应的ACK之后就知道相应的下行数据包被终端设备正确接收了，进一步地，网络设备就可以在后续的下行数据包中不携带QFI。网络设备也可以是只要接收到终端设备一次发送的多个下行数据包的ACK信息，就可以停止在后续的下行数据包中不携带QFI。
可选地，在本申请实施例中，该终端设备根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI，包括：该终端设备通过与接收到的该至少一个下行数据包中的最后一个数据包对应的ACK信息指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
若终端设备在收到属于某一个QoS flow的第一个下行数据包之后就向网络设备反馈ACK信息，并且该ACK信息可以用来指示网络设备停止后续在属于同一个QoS flow的下行数据包中携带该QoS flow的QFI。例如，若终端设备决定在收到属于某一个QoS flow的前5个下行数据包，通过与第5个下行数据包的ACK来指示网络设备停止后续在属于同一个QoS flow的下行数据包中携带该QoS flow的QFI，也就是说，前4个下行数据包的ACK不用来指示网络设备停止后续在属于同一个QoS flow的下行数据包中携带该QoS flow的QFI。那么网络设备接收到第5个ACK就可以停止在之后的下行数据包中携带QFI。
应理解，上述对于数据包的ACK可以是无线链路控制(Radio Link Control，RLC)的ACK，具体地，可以是RLC层自动重传请求(Automatic  Repeat request，ARQ)用于反馈该数据正确收到的ACK信息。
还应理解，终端设备向网络设备指示停止携带QFI可以是不同于ACK信息的其他指示信息，本申请实施例对此不构成限定。
可选地，在本申请实施例中，终端设备在接收到某一个携带QFI的下行数据包之后，终端设备可以根据该QFI将承载该下行数据包的DRB与该下行数据包的QoS flow对应起来，也就是说，终端设备可以存储一张DRB与QoS flow的对应表，每增加一种对应关系，就将该对应关系存储在该对应表中。
可选地，在本申请实施例中，该方法还包括：该终端设备根据该映射关系，向该网络设备发送上行数据包。
应理解，同一个QoS flow所对应的QoS flow到DRB的映射关系信息可以是相同的，也就是说，终端设备在获取到QoS flow与DRB的映射关系之后，终端设备也就能够知道DRB上所需要的QoS信息是什么，进而可以在选择某一个DRB承载上行数据包时，就选择与该DRB对应的QoS信息向网络设备传输上行数据或者终端设备在选择某一个DRB承载上行数据包时，就可以知道其对应的QoS flow是什么。
图4示出了本申请实施例的用于传输数据的方法200的示意性框图。如图4所示，该方法200包括：
S210，网络设备向终端设备发送承载于第一数据无线承载DRB的属于第一服务质量数据流的N个下行数据包，该N个下行数据包中的M个下行数据包中的每个下行数据包不携带用于标识该第一服务质量数据流的标识QFI，N和M均为正整数且M小于N。
具体地，网络设备在使用某一DRB向终端设备发送属于同一QoS flow的下行数据包时，网络设备可以只在部分下行数据包中携带QFI，例如，网络设备可以只在前几个下行数据包中携带QFI，默认终端设备能够从该前几个下行数据包中获取到DRB与QoS flow的映射关系。
因此，本申请实施例的用于传输数据的方法，只在属于同一QoS flow的部分下行数据包中携带QFI，有利于降低网络开销。
可选地，在本申请实施例中，该M个下行数据包为该网络设备发送的该N个下行数据包中的后M个下行数据包。
可选地，在本申请实施例中，在该网络设备向该终端设备发送该N个下 行数据包中的前(N-M)个下行数据包之后，该方法还包括：该网络设备根据该终端设备的指示，停止在该M个下行数据包中携带该QFI。
具体地，网络设备可以在向终端设备发送了多个属于同一QoS flow的下行数据包之后接收到终端设备发送的停止在后续属于该QoS flow的下行数据包中携带QFI的指示信息。
可选地，在本申请实施例中，该网络设备根据该终端设备的指示，停止在该M个下行数据包中携带该QFI，包括：该网络设备根据该终端设备的指示，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系；该网络设备停止在该M个下行数据包中携带该QFI。
具体地，网络设备可以根据终端设备的指示，首先确定终端设备已经存储了相应的DRB与QoS flow的映射关系，进而网络设备在后续属于该QoS flow的下行数据包中停止携带QFI。
可选地，在本申请实施例中，该网络设备接收该终端设备发送的与该(N-M)个下行数据包中每个下行数据包对应的ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
可选地，在本申请实施例中，该网络设备根据该终端设备的指示，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系，包括：该网络设备根据接收到的最后一个该ACK信息，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系。
具体地，网络设备可以在收到第一个属于某一QoS flow的下行数据包的ACK信息之后，网络设备可以认为终端设备已存储DRB与该QoS flow的映射关系，进而停止在后续属于该QoS flow的下行数据包中携带QFI。网络设备也可以在收到第N个属于某一QoS flow的下行数据包的ACK信息之后，认为终端设备已存储DRB与该QoS flow的映射关系，进而停止在后续属于该QoS flow的下行数据包中携带QFI，N为正整数。
应理解，该ACK信息为无线链路控制RLC层的ACK。
可选地，在本申请实施例中，该方法还包括：该网络设备接收该终端设备基于该映射关系发送的上行数据包。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独 存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，网络设备描述的网络设备与终端设备之间的交互及相关特性、功能等与终端设备的相关特性、功能相应。并且相关内容在上述方法100中已经作了详尽描述，为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的用于传输数据的方法，下面将结合图5至图8，描述根据本申请实施例的用于传输数据的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图5示出了本申请实施例的终端设备300的示意性框图。如图5所示，该终端设备300包括：
接收单元310，用于成功接收到网络设备发送的承载于第一数据无线承载DRB中的属于第一服务质量数据流的至少一个下行数据包，该至少一个下行数据包中的每个下行数据包携带用于标识该第一服务质量数据流的标识QFI；
指示单元320，用于根据该至少一个下行数据包，指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
因此，本申请实施例的用于传输数据的终端设备，通过在成功接收到属于同一个QoS flow的下行数据包之后向网络设备指示停止在后续同一个QoS flow的下行数据包中携带QFI，有利于降低网络开销。
可选地，在本申请实施例中，该至少一个下行数据包为一个下行数据包。
可选地，在本申请实施例中，该终端设备还包括：反馈单元，用于每成功接收到该至少一个下行数据包中的一个下行数据包后，向该网络设备反馈ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
可选地，在本申请实施例中，该指示单元具体用于：通过与接收到的该至少一个下行数据包中的最后一个数据包对应的ACK信息指示该网络设备停止后续在属于该第一服务质量数据流的下行数据包中携带该QFI。
可选地，在本申请实施例中，该ACK信息为无线链路控制RLC层的ACK。
可选地，在本申请实施例中，该终端设备还包括：存储单元，用于存储该第一DRB与该第一服务质量数据流的映射关系。
可选地，在本申请实施例中，该终端设备还包括：发送单元，用于根据该映射关系，向该网络设备发送上行数据包。
应理解，根据本申请实施例的终端设备300可对应于本申请方法实施例中的终端设备，并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图3方法中终端设备的相应流程，为了简洁，在此不再赘述。
图6示出了本申请实施例的网络设备400的示意性框图。如图6所示，该网络设备400包括：
生成单元410，用于生成属于第一服务质量数据流的N个下行数据包，该N个下行数据包中的M个下行数据包中的每个下行数据包不携带用于标识该第一服务质量数据流的标识QFI，N和M均为正整数且M小于N；
发送单元420，用于通过第一数据无线承载DRB向终端设备发送该N个下行数据包。
因此，本申请实施例的用于传输数据的网络设备，只在属于同一QoS flow的部分下行数据包中携带QFI，有利于降低网络开销。
可选地，在本申请实施例中，该M个下行数据包为该网络设备发送的该N个下行数据包中的后M个下行数据包。
可选地，在本申请实施例中，该网络设备还包括：停止单元，用于在该发送单元向该终端设备发送该N个下行数据包中的前(N-M)个下行数据包之后，根据该终端设备的指示，停止在该M个下行数据包中携带该QFI。
可选地，在本申请实施例中，该停止单元具体用于：根据该终端设备的指示，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系；停止在该M个下行数据包中携带该QFI。
可选地，在本申请实施例中，该网络设备还包括：第一接收单元，用于接收该终端设备发送的与该(N-M)个下行数据包中每个下行数据包对应的ACK信息，该ACK信息用于指示相应的下行数据包被正确接收。
可选地，在本申请实施例中，该停止单元具体用于：根据接收到的最后一个该ACK信息，确定该终端设备已存储该第一DRB与该第一服务质量数据流的映射关系。
可选地，在本申请实施例中，该ACK信息为无线链路控制RLC层的ACK。
可选地，在本申请实施例中，该网络设备还包括：第二接收单元，用于接收该终端设备基于该映射关系发送的上行数据包。
可选地，在本申请实施例中，(N-M)为1。
应理解，根据本申请实施例的网络设备400可对应于本申请方法实施例中的网络设备，并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图4方法中网络设备的相应流程，为了简洁，在此不再赘述。
如图7所示，本申请实施例还提供了一种终端设备500，该终端设备500可以是图5中的终端设备300，其能够用于执行与图3方法100对应的终端设备的内容。该终端设备500包括：输入接口510、输出接口520、处理器530以及存储器540，该输入接口510、输出接口520、处理器530和存储器540可以通过总线系统相连。该存储器540用于存储包括程序、指令或代码。该处理器530，用于执行该存储器540中的程序、指令或代码，以控制输入接口510接收信号、控制输出接口520发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的终端设备，通过在成功接收到属于同一个QoS flow的下行数据包之后向网络设备指示停止在后续同一个QoS flow的下行数据包中携带QFI，有利于降低网络开销。
应理解，在本申请实施例中，该处理器530可以是中央处理单元(Central Processing Unit，CPU)，该处理器530还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器540可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。存储器540的一部分还可以包括非易失性随机存取存储器。例如，存储器540还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器530中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容 可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器540，处理器530读取存储器540中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，终端设备300的指示单元、反馈单元和发送单元可以由图7中的输出接口520实现，终端设备300的接收单元可以由图7中的输入接口510实现。终端设备300的存储单元可以由图7中的处理器530实现。
如图8所示，本申请实施例还提供了一种网络设备600，该网络设备600可以是图6中的网络设备400，其能够用于执行与图4中方法200对应的网络设备的内容。该网络设备600包括：输入接口610、输出接口620、处理器630以及存储器640，该输入接口610、输出接口620、处理器630和存储器640可以通过总线系统相连。该存储器640用于存储包括程序、指令或代码。该处理器630，用于执行该存储器640中的程序、指令或代码，以控制输入接口610接收信号、控制输出接口620发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的网络设备，只在属于同一QoS flow的部分下行数据包中携带QFI，有利于降低网络开销。
应理解，在本申请实施例中，该处理器630可以是中央处理单元(Central Processing Unit，CPU)，该处理器630还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器640可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。存储器640的一部分还可以包括非易失性随机存取存储器。例如，存储器640还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器630中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容 可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器640，处理器630读取存储器640中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，网络设备400中的发送单元可以由图8中的输出接口620实现，网络设备400中的第一接收单元和第二接收单元可以由图8中的输入接口610实现。网络设备400中的生成单元和停止单元可以由图8中的处理器630实现。本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(RandomAccess Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应该以权利要求的保护范围为准。

Claims (32)

  1. 一种用于传输数据的方法，其特征在于，包括：
    终端设备成功接收到网络设备发送的承载于第一数据无线承载DRB中的属于第一服务质量数据流的至少一个下行数据包，所述至少一个下行数据包中的每个下行数据包携带用于标识所述第一服务质量数据流的标识QFI；
    所述终端设备根据所述至少一个下行数据包，指示所述网络设备停止后续在属于所述第一服务质量数据流的下行数据包中携带所述QFI。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个下行数据包为一个下行数据包。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备每成功接收到所述至少一个下行数据包中的一个下行数据包后，向所述网络设备反馈ACK信息，所述ACK信息用于指示相应的下行数据包被正确接收。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备根据所述至少一个下行数据包，指示所述网络设备停止后续在属于所述第一服务质量数据流的下行数据包中携带所述QFI，包括：
    所述终端设备通过与接收到的所述至少一个下行数据包中的最后一个数据包对应的ACK信息指示所述网络设备停止后续在属于所述第一服务质量数据流的下行数据包中携带所述QFI。
  5. 根据权利要求3或4所述的方法，其特征在于，所述ACK信息为无线链路控制RLC层的ACK。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备存储所述第一DRB与所述第一服务质量数据流的映射关系。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述映射关系，向所述网络设备发送上行数据包。
  8. 一种用于传输数据的方法，其特征在于，包括：
    网络设备向终端设备发送承载于第一数据无线承载DRB的属于第一服务质量数据流的N个下行数据包，所述N个下行数据包中的M个下行数据包中的每个下行数据包不携带用于标识所述第一服务质量数据流的标识 QFI，N和M均为正整数且M小于N。
  9. 根据权利要求8所述的方法，其特征在于，所述M个下行数据包为所述网络设备发送的所述N个下行数据包中的后M个下行数据包。
  10. 根据权利要求9所述的方法，其特征在于，在所述网络设备向所述终端设备发送所述N个下行数据包中的前(N-M)个下行数据包之后，所述方法还包括：
    所述网络设备根据所述终端设备的指示，停止在所述M个下行数据包中携带所述QFI。
  11. 根据权利要求10所述的方法，其特征在于，所述网络设备根据所述终端设备的指示，停止在所述M个下行数据包中携带所述QFI，包括：
    所述网络设备根据所述终端设备的指示，确定所述终端设备已存储所述第一DRB与所述第一服务质量数据流的映射关系；
    所述网络设备停止在所述M个下行数据包中携带所述QFI。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端设备发送的与所述(N-M)个下行数据包中每个下行数据包对应的ACK信息，所述ACK信息用于指示相应的下行数据包被正确接收。
  13. 根据权利要求12所述的方法，其特征在于，所述网络设备根据所述终端设备的指示，确定所述终端设备已存储所述第一DRB与所述第一服务质量数据流的映射关系，包括：
    所述网络设备根据接收到的最后一个所述ACK信息，确定所述终端设备已存储所述第一DRB与所述第一服务质量数据流的映射关系。
  14. 根据权利要求12或13所述的方法，其特征在于，所述ACK信息为无线链路控制RLC层的ACK。
  15. 根据权利要求11至14中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端设备基于所述映射关系发送的上行数据包。
  16. 根据权利要求8至15中任一项所述的方法，其特征在于，(N-M)为1。
  17. 一种终端设备，其特征在于，所述终端设备包括：
    接收单元，用于成功接收到网络设备发送的承载于第一数据无线承载 DRB中的属于第一服务质量数据流的至少一个下行数据包，所述至少一个下行数据包中的每个下行数据包携带用于标识所述第一服务质量数据流的标识QFI；
    指示单元，用于根据所述至少一个下行数据包，指示所述网络设备停止后续在属于所述第一服务质量数据流的下行数据包中携带所述QFI。
  18. 根据权利要求17所述的终端设备，其特征在于，所述至少一个下行数据包为一个下行数据包。
  19. 根据权利要求17或18所述的终端设备，其特征在于，所述终端设备还包括：
    反馈单元，用于每成功接收到所述至少一个下行数据包中的一个下行数据包后，向所述网络设备反馈ACK信息，所述ACK信息用于指示相应的下行数据包被正确接收。
  20. 根据权利要求19所述的终端设备，其特征在于，所述指示单元具体用于：
    通过与接收到的所述至少一个下行数据包中的最后一个数据包对应的ACK信息指示所述网络设备停止后续在属于所述第一服务质量数据流的下行数据包中携带所述QFI。
  21. 根据权利要求19或20所述的终端设备，其特征在于，所述ACK信息为无线链路控制RLC层的ACK。
  22. 根据权利要求17至21中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    存储单元，用于存储所述第一DRB与所述第一服务质量数据流的映射关系。
  23. 根据权利要求22所述的终端设备，其特征在于，所述终端设备还包括：
    发送单元，用于根据所述映射关系，向所述网络设备发送上行数据包。
  24. 一种网络设备，其特征在于，所述网络设备包括：
    生成单元，用于生成属于第一服务质量数据流的N个下行数据包，所述N个下行数据包中的M个下行数据包中的每个下行数据包不携带用于标识所述第一服务质量数据流的标识QFI，N和M均为正整数且M小于N；
    发送单元，用于通过第一数据无线承载DRB向终端设备发送所述N个下行数据包。
  25. 根据权利要求24所述的网络设备，其特征在于，所述M个下行数据包为所述网络设备发送的所述N个下行数据包中的后M个下行数据包。
  26. 根据权利要求25所述的网络设备，其特征在于，所述网络设备还包括：
    停止单元，用于在所述发送单元向所述终端设备发送所述N个下行数据包中的前(N-M)个下行数据包之后，根据所述终端设备的指示，停止在所述M个下行数据包中携带所述QFI。
  27. 根据权利要求26所述的网络设备，其特征在于，所述停止单元具体用于：
    根据所述终端设备的指示，确定所述终端设备已存储所述第一DRB与所述第一服务质量数据流的映射关系；
    停止在所述M个下行数据包中携带所述QFI。
  28. 根据权利要求27所述的网络设备，其特征在于，所述网络设备还包括：
    第一接收单元，用于接收所述终端设备发送的与所述(N-M)个下行数据包中每个下行数据包对应的ACK信息，所述ACK信息用于指示相应的下行数据包被正确接收。
  29. 根据权利要求28所述的网络设备，其特征在于，所述停止单元具体用于：
    根据接收到的最后一个所述ACK信息，确定所述终端设备已存储所述第一DRB与所述第一服务质量数据流的映射关系。
  30. 根据权利要求28或29所述的网络设备，其特征在于，所述ACK信息为无线链路控制RLC层的ACK。
  31. 根据权利要求27至30中任一项所述的网络设备，其特征在于，所述网络设备还包括：
    第二接收单元，用于接收所述终端设备基于所述映射关系发送的上行数据包。
  32. 根据权利要求24至31中任一项所述的网络设备，其特征在于，(N-M)为1。
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