WO2019157631A1 - 一种QoS流的重映射方法及装置、计算机存储介质 - Google Patents

一种QoS流的重映射方法及装置、计算机存储介质 Download PDF

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Publication number
WO2019157631A1
WO2019157631A1 PCT/CN2018/076655 CN2018076655W WO2019157631A1 WO 2019157631 A1 WO2019157631 A1 WO 2019157631A1 CN 2018076655 W CN2018076655 W CN 2018076655W WO 2019157631 A1 WO2019157631 A1 WO 2019157631A1
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Prior art keywords
drb
data packet
qos flow
qos
sdap entity
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PCT/CN2018/076655
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English (en)
French (fr)
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尤心
石聪
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Oppo广东移动通信有限公司
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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 SG11202006598SA priority Critical patent/SG11202006598SA/en
Priority to MX2020008389A priority patent/MX2020008389A/es
Priority to CN202010342594.XA priority patent/CN111526542A/zh
Priority to AU2018409070A priority patent/AU2018409070A1/en
Priority to KR1020207020191A priority patent/KR20200118415A/ko
Priority to JP2020538928A priority patent/JP2021517750A/ja
Priority to EP18906172.4A priority patent/EP3720178A4/en
Priority to CN201880055495.4A priority patent/CN111095980A/zh
Priority to PCT/CN2018/076655 priority patent/WO2019157631A1/zh
Publication of WO2019157631A1 publication Critical patent/WO2019157631A1/zh
Priority to US16/901,273 priority patent/US11252610B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/568Storing data temporarily at an intermediate stage, e.g. caching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0268Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a QoS (Quality of Service) flow remapping method and apparatus, and a computer storage medium.
  • QoS Quality of Service
  • a QoS mapping consists of two parts: a mapping (NAS Mapping) non-access stratum and access layer mapping (AS Mapping), in particular, It includes the following two parts of mapping: mapping from IP flow to QoS flow, and mapping from QoS flow to Data Radio Bearer (DRB).
  • NAS Mapping mapping
  • AS Mapping access layer mapping
  • QoS flow re-mapping may also occur in a handover or dual-connection scenario. How to ensure that QoS flow data is transmitted without interruption during remapping, no packet loss and timely delivery at the receiving end is a problem to be solved. .
  • an embodiment of the present invention provides a QoS flow re-mapping method and apparatus, and a computer storage medium.
  • the Service Data Adaptation Protocol (SDAP) entity of the first device determines the first data packet, where a data packet is the last data packet sent by the first QoS flow on the first DRB;
  • SDAP Service Data Adaptation Protocol
  • mapping the first QoS flow to the second DRB Transmitting, after the first data packet in the first QoS flow, a data packet on the second DRB.
  • the SDAP entity of the first device determines that the first QoS flow completes the transmission of the first data packet on the first DRB, and includes:
  • the SDAP entity of the first device Transmitting, by the SDAP entity of the first device, the first indication information to a Packet Data Convergence Protocol (PDCP) entity corresponding to the first DRB, where the first indication information is used to indicate the first QoS flow
  • PDCP Packet Data Convergence Protocol
  • the second indication information is sent to the SDAP entity of the first device, where the second indication information is used to indicate the The first QoS flow completes transmission of the first data packet on the first DRB.
  • the first QoS flow is mapped to the second DRB, and the data packet after the first data packet in the first QoS flow is transmitted on the second DRB, include:
  • the SDAP entity of the first device maps the data packet of the first data packet to the second DRB, and sends the first packet by the PDCP entity corresponding to the second DRB.
  • the data packet after the first data packet in the QoS flow.
  • the method further includes:
  • the SDAP entity of the first device After the first device determines that the first QoS flow needs to be remapped from the first DRB to the second DRB, the SDAP entity of the first device performs the data packet after the first data packet in the first QoS flow. Cache.
  • the first QoS flow is mapped to the second DRB, and the data packet after the first data packet in the first QoS flow is transmitted on the second DRB, include:
  • the first device determines that the first QoS flow needs to be remapped from the first DRB to the second DRB, and includes:
  • the first device determines, according to the obtained mapping relationship between the first QoS flow and the second DRB, that the first QoS flow needs to be remapped from the first DRB to the second DRB.
  • the mapping relationship between the first QoS flow and the second DRB is determined based on a QoS determination of the first QoS flow or based on radio resource control RRC signaling.
  • the first device is a base station or a terminal.
  • the remapping device of the QoS flow provided by the embodiment of the present invention is applied to a first device, where the device includes:
  • a first determining unit configured to determine that the first QoS flow needs to be remapped from the first data radio bearer DRB to the second DRB;
  • a second determining unit configured to determine, by using a SDAP entity of the first device, a first data packet, where the first data packet is a last data packet sent by the first QoS flow on the first DRB;
  • a third determining unit configured to determine, by using a SDAP entity of the first device, that the first QoS flow completes transmission of the first data packet on the first DRB;
  • a transmitting unit configured to map the first QoS flow to the second DRB, and transmit, on the second DRB, a data packet after the first data packet in the first QoS flow.
  • the third determining unit is configured to: send, by using a SDAP entity of the first device, first indication information to a PDCP entity corresponding to the first DRB, where the first indication information is used to indicate The last data packet sent by the first QoS flow on the first DRB is the first data packet; and the PDCP entity corresponding to the first DRB confirms that the first data packet is successfully received by the second device. And sending, to the SDAP entity of the first device, second indication information, where the second indication information is used to indicate that the first QoS flow completes transmission of the first data packet on the first DRB.
  • the transmitting unit is configured to map, by using a SDAP entity of the first device, a data packet subsequent to the first data packet in the first QoS flow to the second DRB, and The PDCP entity corresponding to the second DRB sends the data packet after the first data packet in the first QoS flow.
  • the device further includes:
  • a buffering unit configured to cache, by the SDAP entity of the first device, a data packet subsequent to the first data packet in the first QoS flow.
  • the transmitting unit is configured to transmit, on the second DRB, the data packet after the first data packet in the cached first QoS flow.
  • the first determining unit is configured to determine that the first QoS flow needs to be heavier from the first DRB, based on the obtained mapping relationship between the first QoS flow and the second DRB. Mapping to the second DRB.
  • the mapping relationship between the first QoS flow and the second DRB is determined based on a QoS determination of the first QoS flow or based on RRC signaling.
  • the first device is a base station or a terminal.
  • the computer storage medium provided by the embodiment of the present invention has stored thereon computer executable instructions, and the computer executable instructions are implemented by the processor to implement the remapping method of the QoS flow.
  • the SDAP entity of the first device determines the first data packet, where the first a data packet is the last data packet sent by the first QoS flow on the first DRB; the SDAP entity of the first device determines that the first QoS flow completes on the first DRB After the transmission of the first data packet, the first QoS flow is mapped to the second DRB, and the data packet after the first data packet in the first QoS flow is transmitted on the second DRB.
  • the technical solution of the embodiment of the present invention can ensure that the data of the QoS flow is not interrupted during the remapping, and the packet is not lost, and the in-situ delivery can be implemented at the receiving end.
  • Figure 1 is a schematic diagram of remapping
  • FIG. 2 is a schematic diagram of a protocol layer between a UE and a base station
  • FIG. 3 is a schematic diagram of a SDAP layer and a PDCP layer
  • FIG. 4 is a schematic flowchart of a remapping method of a QoS flow according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a QoS flow remapping apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
  • an AS layer that is, an SDAP layer
  • UE terminal
  • gNB base station
  • an AS layer is added to the terminal (UE) and the base station (gNB) side to complete the mapping of the QoS flow to the DRB through the SDAP layer.
  • one PDU session corresponds to one SDAP entity
  • one PDU session includes multiple QoS flows.
  • the QoS flow can be mapped to the DRB through a SDAP entity
  • one DRB corresponds to one PDCP entity.
  • FIG. 4 is a schematic flowchart of a remapping method of a QoS flow according to an embodiment of the present invention. As shown in FIG. 4, the remapping method of the QoS flow includes the following steps:
  • Step 401 After the first device determines that the first QoS flow needs to be remapped from the first data DRB to the second DRB, the SDAP entity of the first device determines a first data packet, where the first data packet is the first The last packet sent by the QoS flow on the first DRB.
  • the first device is a base station or a terminal.
  • the first device determines, according to the obtained mapping relationship between the first QoS flow and the second DRB, that the first QoS flow needs to be remapped from the first DRB to the Second DRB.
  • the mapping relationship between the first QoS flow and the second DRB is determined based on a QoS determination of the first QoS flow or based on RRC signaling.
  • Step 402 The SDAP entity of the first device determines that the first QoS flow completes the transmission of the first data packet on the first DRB, and maps the first QoS flow to the second And transmitting, on the DRB, the data packet after the first data packet in the first QoS flow on the second DRB.
  • the SDAP entity of the first device determines that the first QoS flow completes the transmission of the first data packet on the first DRB, and is implemented by the following process:
  • the SDAP entity of the first device sends first indication information to a packet data convergence protocol PDCP entity corresponding to the first DRB, where the first indication information is used to indicate that the first QoS flow is in the first
  • the last data packet sent on the DRB is the first data packet
  • the second indication information is sent to the SDAP entity of the first device, where the second indication information is used to indicate The first QoS flow completes transmission of the first data packet on the first DRB.
  • the first QoS flow is mapped to the second DRB, and the data packet after the first data packet in the first QoS flow is transmitted on the second DRB, include:
  • the SDAP entity of the first device maps the data packet of the first data packet to the second DRB, and sends the first packet by the PDCP entity corresponding to the second DRB.
  • the data packet after the first data packet in the QoS flow.
  • the SDAP entity of the first device pairs the first data in the first QoS flow. Packets after the packet are cached.
  • the mapping the first QoS flow to the second DRB and transmitting the data packet after the first data packet in the first QoS flow on the second DRB includes: And transmitting, by the second DRB, the data packet after the first data packet in the first QoS flow buffered.
  • FIG. 5 is a schematic structural diagram of a QoS flow re-mapping apparatus according to an embodiment of the present disclosure, which is applied to a first device. As shown in FIG. 5, the QoS flow re-mapping apparatus includes:
  • a first determining unit 501 configured to determine that the first QoS flow needs to be remapped from the first data radio bearer DRB to the second DRB;
  • a second determining unit 502 configured to determine, by using a SDAP entity of the first device, a first data packet, where the first data packet is a last data packet sent by the first QoS flow on the first DRB;
  • a third determining unit 503, configured to determine, by using a SDAP entity of the first device, that the first QoS flow completes transmission of the first data packet on the first DRB;
  • the transmitting unit 504 is configured to map the first QoS flow to the second DRB and transmit, on the second DRB, a data packet after the first data packet in the first QoS flow.
  • the third determining unit 503 is configured to: send, by using a SDAP entity of the first device, first indication information to a PDCP entity corresponding to the first DRB, where the first indication information is used by And indicating that the last data packet sent by the first QoS flow on the first DRB is the first data packet; and the PDCP entity corresponding to the first DRB confirms that the first data packet is succeeded by the second device After receiving, the second indication information is sent to the SDAP entity of the first device, where the second indication information is used to indicate that the first QoS flow completes transmission of the first data packet on the first DRB.
  • the transmitting unit 504 is configured to map, by using a SDAP entity of the first device, a data packet subsequent to the first data packet in the first QoS flow to the second DRB, Transmitting, by the PDCP entity corresponding to the second DRB, the data packet after the first data packet in the first QoS flow.
  • the device further includes:
  • the buffering unit 505 is configured to buffer, by the SDAP entity of the first device, the data packet after the first data packet in the first QoS flow.
  • the transmitting unit 504 is configured to transmit, on the second DRB, the data packet after the first data packet in the cached first QoS flow.
  • the first determining unit 501 is configured to determine, according to the obtained mapping relationship between the first QoS flow and the second DRB, that the first QoS flow needs to be from the first DRB. Remap to the second DRB.
  • the mapping relationship between the first QoS flow and the second DRB is determined based on a QoS determination of the first QoS flow or based on RRC signaling.
  • the first device is a base station or a terminal.
  • each unit in the remapping apparatus of the QOS stream shown in FIG. 6 can be realized by a program running on a processor, or can be realized by a specific logic circuit.
  • the remapping apparatus of the above QOS stream in the embodiment of the present invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a separate product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or first device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, wherein computer executable instructions are stored, and when the computer executable instructions are executed by the processor, the remapping method of the QOS stream of the embodiment of the present invention is implemented.
  • FIG. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
  • the computer device may be a second device or a first device.
  • computer device 100 may include one or more (only one shown) processor 1002 (processor 1002 may include, but is not limited to, a Micro Controller Unit (MCU) or a programmable logic device.
  • a processing device such as an FPGA (Field Programmable Gate Array), a memory 1004 for storing data, and a transmission device 1006 for a communication function.
  • FPGA Field Programmable Gate Array
  • FIG. 6 is merely illustrative and does not limit the structure of the above electronic device.
  • computer device 100 may also include more or fewer components than shown in FIG. 6, or have a different configuration than that shown in FIG.
  • the memory 1004 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the method in the embodiment of the present invention, and the processor 1002 executes various functional applications by running software programs and modules stored in the memory 1004. And data processing, that is, to achieve the above method.
  • Memory 1004 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 1004 can further include memory remotely located relative to processor 1002, which can be connected to computer device 100 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 1006 is for receiving or transmitting data via a network.
  • the network specific examples described above may include a wireless network provided by a communication provider of computer device 100.
  • the transmission device 1006 includes a Network Interface Controller (NIC) that can be connected to other first devices via a base station to communicate with the Internet.
  • the transmission device 1006 can be a radio frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF radio frequency
  • the disclosed method and smart device 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 such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or 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 invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

Abstract

本发明公开了一种QOS流的重映射方法及装置、计算机存储介质,所述方法包括:第一设备确定第一QoS流需要从第一DRB重映射到第二DRB后,所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输后,将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。

Description

一种QoS流的重映射方法及装置、计算机存储介质 技术领域
本发明涉及无线通信技术领域,尤其涉及一种服务质量(QoS,Quality of Service)流的重映射方法及装置、计算机存储介质。
背景技术
第五代(5G,5 th Generation)新无线(NR,New Radio)的QoS映射主要包括两部分:非接入层的映射(NAS Mapping)和接入层的映射(AS Mapping),具体地,包括以下两部分的映射:从IP流(IP flow)到QoS流(QoS flow)的映射,以及从QoS流到数据无线承载(DRB,Data Radio Bearer)的映射。
在无线资源控制(RRC,Radio Resource Control)连接初始建立时,无线接入网(RAN,Radio Access Network)侧只建立了默认承载(default DRB),那么,来自不同QoS flow的数据都会映射在default DRB上。当后期对应某个QoS flow的DRB建立之后,该QoS flow的数据需要重映射(remapping)到新的DRB上面去。如图1所示,RRC连接初始建立时,QoS flow1和QoS flow2都映射到DRB1,当具有更高优先级的DRB2建立后(更符合QoS flow2的需求),QoS flow 2的数据需要remap到DRB2上。
除了上述场景,QoS flow重映射也可能发生在切换、双连接的场景下,如何保证QoS flow的数据在remapping的时候传输不中断,不丢包而且在接收端可以按序递交是有待解决的问题。
发明内容
为解决上述技术问题,本发明实施例提供了一种QoS流的重映射方法 及装置、计算机存储介质。
本发明实施例提供的QoS流的重映射方法,包括:
第一设备确定第一QoS流需要从第一DRB重映射到第二DRB后,所述第一设备的业务数据适配协议(SDAP,Service Data Adaptation Protocol)实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;
所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输后,将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输,包括:
所述第一设备的SDAP实体向所述第一DRB对应的分组数据汇聚协议(PDCP,Packet Data Convergence Protocol)实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据包;
所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
本发明实施例中,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:
所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP实体 发送所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述方法还包括:
所述第一设备确定第一QoS流需要从第一DRB重映射到第二DRB后,所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。
本发明实施例中,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:
在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述第一设备确定第一QoS流需要从第一DRB重映射到第二DRB,包括:
所述第一设备基于获取到的所述第一QoS流与所述第二DRB的映射关系,确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。
本发明实施例中,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于无线资源控制RRC信令确定。
本发明实施例中,所述第一设备为基站或终端。
本发明实施例提供的QoS流的重映射装置,应用于第一设备,所述装置包括:
第一确定单元,用于确定第一QoS流需要从第一数据无线承载DRB重映射到第二DRB;
第二确定单元,用于通过所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;
第三确定单元,用于通过所述第一设备的SDAP实体确定出所述第一 QoS流在所述第一DRB上完成所述第一数据包的传输;
传输单元,用于将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述第三确定单元,用于:通过所述第一设备的SDAP实体向所述第一DRB对应的PDCP实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据包;通过所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
本发明实施例中,所述传输单元,用于通过所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP实体发送所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述装置还包括:
缓存单元,用于通过所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。
本发明实施例中,所述传输单元,用于在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述第一确定单元,用于基于获取到的所述第一QoS流与所述第二DRB的映射关系,确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。
本发明实施例中,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于RRC信令确定。
本发明实施例中,所述第一设备为基站或终端。
本发明实施例提供的计算机存储介质,其上存储有计算机可执行指令,该计算机可执行指令被处理器执行时实现上述的QoS流的重映射方法。
本发明实施例的技术方案中,第一设备确定第一QoS流需要从第一数据无线承载DRB重映射到第二DRB后,所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输后,将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。采用本发明实施例的技术方案,能够保证QoS流的数据在重映射的时候传输不中断,且不丢包,此外可以在接收端实现按序递交。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本发明的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为重映射的示意图;
图2为UE和基站之间的协议层示意图;
图3为SDAP层和PDCP层的示意图;
图4为本发明实施例的QoS流的重映射方法的流程示意图;
图5为本发明实施例的QoS流的重映射装置的结构组成示意图;
图6为本发明实施例的计算机设备的结构组成示意图。
具体实施方式
为便于理解本发明实施例的技术方案,以下对本发明实施例相关的概 念进行说明。
参照图2,终端(UE)和基站(gNB)侧均新增了一个AS层,即SDAP层,通过SDAP层完成QoS流到DRB的映射。参照图3,一个PDU会话(PDU Session)对应一个SDAP实体,一个PDU会话包括多个QoS流,通过SDAP实体可以将QoS流映射到DRB上,一个DRB对应一个PDCP实体。
图4为本发明实施例的QoS流的重映射方法的流程示意图,如图4所示,所述QoS流的重映射方法包括以下步骤:
步骤401:第一设备确定第一QoS流需要从第一数据DRB重映射到第二DRB后,所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包。
本发明实施例中,所述第一设备为基站或终端。
在一实施方式中,所述第一设备基于获取到的所述第一QoS流与所述第二DRB的映射关系,确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。这里,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于RRC信令确定。
步骤402:所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输后,将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
本发明实施例中,所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输,通过以下过程实现:
1)所述第一设备的SDAP实体向所述第一DRB对应的分组数据汇聚协议PDCP实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据 包;
2)所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
本发明实施例中,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:
所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP实体发送所述第一QoS流中所述第一数据包以后的数据包。
在一实施方式中,所述第一设备确定第一QoS流需要从第一DRB重映射到第二DRB后,所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。相应地,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
图5为本发明实施例的QoS流的重映射装置的结构组成示意图,应用于第一设备,如图5所示,所述QoS流的重映射装置包括:
第一确定单元501,用于确定第一QoS流需要从第一数据无线承载DRB重映射到第二DRB;
第二确定单元502,用于通过所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;
第三确定单元503,用于通过所述第一设备的SDAP实体确定出所述第 一QoS流在所述第一DRB上完成所述第一数据包的传输;
传输单元504,用于将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
在一实施方式中,所述第三确定单元503,用于:通过所述第一设备的SDAP实体向所述第一DRB对应的PDCP实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据包;通过所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
在一实施方式中,所述传输单元504,用于通过所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP实体发送所述第一QoS流中所述第一数据包以后的数据包。
在一实施方式中,所述装置还包括:
缓存单元505,用于通过所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。
在一实施方式中,所述传输单元504,用于在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
在一实施方式中,所述第一确定单元501,用于基于获取到的所述第一QoS流与所述第二DRB的映射关系,确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。
在一实施方式中,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于RRC信令确定。
在一实施方式中,所述第一设备为基站或终端。
本领域技术人员应当理解,图5所示的QOS流的重映射装置中的各单元的实现功能可参照前述QOS流的重映射方法的相关描述而理解。图6所示的QOS流的重映射装置中的各单元的功能可通过运行于处理器上的程序而实现,也可通过具体的逻辑电路而实现。
本发明实施例上述QOS流的重映射装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时,也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,本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分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、或者第一设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样,本发明实施例不限制于任何特定的硬件和软件结合。
相应地,本发明实施例还提供一种计算机存储介质,其中存储有计算机可执行指令,该计算机可执行指令被处理器执行时实现本发明实施例的上述QOS流的重映射方法。
图6为本发明实施例的计算机设备的结构组成示意图,该计算机设备可以是第二设备,也可以是第一设备。如图6所示,计算机设备100可以包括一个或多个(图中仅示出一个)处理器1002(处理器1002可以包括但不限于微处理器(MCU,Micro Controller Unit)或可编程逻辑器件(FPGA,Field Programmable Gate Array)等的处理装置)、用于存储数据的存储器1004、以及用于通信功能的传输装置1006。本领域普通技术人员可以理解,图6所示的结构仅为示意,其并不对上述电子装置的结构造成限定。例如,计算机设备100还可包括比图6中所示更多或者更少的组件,或者具有与图6所示不同的配置。
存储器1004可用于存储应用软件的软件程序以及模块,如本发明实施例中的方法对应的程序指令/模块,处理器1002通过运行存储在存储器1004内的软件程序以及模块,从而执行各种功能应用以及数据处理,即实现上述的方法。存储器1004可包括高速随机存储器,还可包括非易失性存储器,如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中,存储器1004可进一步包括相对于处理器1002远程设置的存储器,这些远程存储器可以通过网络连接至计算机设备100。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置1006用于经由一个网络接收或者发送数据。上述的网络具体实例可包括计算机设备100的通信供应商提供的无线网络。在一个实例中,传输装置1006包括一个网络适配器(NIC,Network Interface Controller),其可通过基站与其他第一设备相连从而可与互联网进行通讯。在一个实例中,传输装置1006可以为射频(RF,Radio Frequency)模块,其用于通过无线方式与互联网进行通讯。
本发明实施例所记载的技术方案之间,在不冲突的情况下,可以任意组合。
在本发明所提供的几个实施例中,应该理解到,所揭露的方法和智能设备,可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的,例如,所述单元的划分,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,如:多个单元或组件可以结合,或可以集成到另一个系统,或一些特征可以忽略,或不执行。另外,所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口,设备或单元的间接耦合或通信连接,可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的,作为单元显示的部件可以是、或也可以不是物理单元,即可以位于一个地 方,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全部单元来实现本实施例方案的目的。
另外,在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中,也可以是各单元分别单独作为一个单元,也可以两个或两个以上单元集成在一个单元中;上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。

Claims (17)

  1. 一种服务质量QoS流的重映射方法,所述方法包括:
    第一设备确定第一QoS流需要从第一数据无线承载DRB重映射到第二DRB后,所述第一设备的业务数据适配协议SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一个数据包;
    所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输后,将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
  2. 根据权利要求1所述的方法,其中,所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输,包括:
    所述第一设备的SDAP实体向所述第一DRB对应的分组数据汇聚协议PDCP实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据包;
    所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
  3. 根据权利要求1或2所述的方法,其中,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:
    所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP 实体发送所述第一QoS流中所述第一数据包以后的数据包。
  4. 根据权利要求1至3任一项所述的方法,其中,所述方法还包括:
    所述第一设备确定第一QoS流需要从第一DRB重映射到第二DRB后,所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。
  5. 根据权利要求4所述的方法,其中,所述将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包,包括:
    在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
  6. 根据权利要求1至5任一项所述的方法,其中,所述第一设备确定第一QoS流需要从第一DRB重映射到第二DRB,包括:
    所述第一设备基于获取到的所述第一QoS流与所述第二DRB的映射关系,确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。
  7. 根据权利要求6所述的方法,其中,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于无线资源控制RRC信令确定。
  8. 根据权利要求1至7任一项所述的方法,其中,所述第一设备为基站或终端。
  9. 一种QoS流的重映射装置,应用于第一设备,所述装置包括:
    第一确定单元,用于确定第一QoS流需要从第一数据无线承载DRB重映射到第二DRB;
    第二确定单元,用于通过所述第一设备的SDAP实体确定第一数据包,所述第一数据包为所述第一QoS流在所述第一DRB上发送的最后一 个数据包;
    第三确定单元,用于通过所述第一设备的SDAP实体确定出所述第一QoS流在所述第一DRB上完成所述第一数据包的传输;
    传输单元,用于将所述第一QoS流映射到所述第二DRB上并在所述第二DRB上传输所述第一QoS流中所述第一数据包以后的数据包。
  10. 根据权利要求9所述的装置,其中,所述第三确定单元,用于:通过所述第一设备的SDAP实体向所述第一DRB对应的PDCP实体发送第一指示信息,所述第一指示信息用于指示所述第一QoS流在所述第一DRB上发送的最后一个数据包为所述第一数据包;通过所述第一DRB对应的PDCP实体确认所述第一数据包被第二设备成功接收后,向所述第一设备的SDAP实体发送第二指示信息,所述第二指示信息用于指示所述第一QoS流在所述第一DRB上完成所述第一数据包的传输。
  11. 根据权利要求9或10所述的装置,其中,所述传输单元,用于通过所述第一设备的SDAP实体将所述第一QoS流中所述第一数据包以后的数据包映射到所述第二DRB上,通过所述第二DRB对应的PDCP实体发送所述第一QoS流中所述第一数据包以后的数据包。
  12. 根据权利要求9至11任一项所述的装置,其中,所述装置还包括:
    缓存单元,用于通过所述第一设备的SDAP实体对所述第一QoS流中所述第一数据包以后的数据包进行缓存。
  13. 根据权利要求12所述的装置,其中,所述传输单元,用于在所述第二DRB上传输缓存的所述第一QoS流中所述第一数据包以后的数据包。
  14. 根据权利要求9至13任一项所述的装置,其中,所述第一确定单元,用于基于获取到的所述第一QoS流与所述第二DRB的映射关系, 确定所述第一QoS流需要从所述第一DRB重映射到所述第二DRB。
  15. 根据权利要求14所述的装置,其中,所述第一QoS流与所述第二DRB的映射关系基于所述第一QoS流的QoS确定、或者基于RRC信令确定。
  16. 根据权利要求9至15任一项所述的装置,其中,所述第一设备为基站或终端。
  17. 一种计算机存储介质,其上存储有计算机可执行指令,该计算机可执行指令被处理器执行时实现权利要求1至8任一项所述的方法步骤。
PCT/CN2018/076655 2018-02-13 2018-02-13 一种QoS流的重映射方法及装置、计算机存储介质 WO2019157631A1 (zh)

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MX2020008389A MX2020008389A (es) 2018-02-13 2018-02-13 Metodo y aparato para re-mapear el flujo de calidad de servicio (qos), y un medio de almacenamiento informatico.
CN202010342594.XA CN111526542A (zh) 2018-02-13 2018-02-13 一种QoS流的重映射方法及装置、计算机存储介质
AU2018409070A AU2018409070A1 (en) 2018-02-13 2018-02-13 Method and apparatus for remapping QoS flow, and computer storage medium
KR1020207020191A KR20200118415A (ko) 2018-02-13 2018-02-13 QoS 플로우의 리맵핑 방법 및 장치, 컴퓨터 저장 매체
JP2020538928A JP2021517750A (ja) 2018-02-13 2018-02-13 QoSフローの再マッピング方法および装置、コンピュータ記憶媒体
EP18906172.4A EP3720178A4 (en) 2018-02-13 2018-02-13 QOS FLOW REMAPPING PROCESS AND APPARATUS, AND COMPUTER STORAGE MEDIA
CN201880055495.4A CN111095980A (zh) 2018-02-13 2018-02-13 一种QoS流的重映射方法及装置、计算机存储介质
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