WO2017177753A1 - 一种基于流的承载管理方法、数据传输方法及装置 - Google Patents

一种基于流的承载管理方法、数据传输方法及装置 Download PDF

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Publication number
WO2017177753A1
WO2017177753A1 PCT/CN2017/073162 CN2017073162W WO2017177753A1 WO 2017177753 A1 WO2017177753 A1 WO 2017177753A1 CN 2017073162 W CN2017073162 W CN 2017073162W WO 2017177753 A1 WO2017177753 A1 WO 2017177753A1
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Prior art keywords
information
radio bearer
description information
flow
packet
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PCT/CN2017/073162
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English (en)
French (fr)
Inventor
施小娟
黄河
梁爽
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中兴通讯股份有限公司
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Priority to EP17781729.3A priority Critical patent/EP3445081B1/en
Publication of WO2017177753A1 publication Critical patent/WO2017177753A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263—Traffic 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]
    • 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]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS

Definitions

  • the present application relates to, but is not limited to, mobile communication technologies, and more particularly to a flow-based bearer management method, a data transmission method, and an apparatus.
  • the 5G system will use all possible networks, so in terms of mobile communication technology itself, the 5G system is not a single system using only one wireless access technology, but can be used including existing wireless connections.
  • Incorporate technology and newly designed wireless access technology convergence systems such as the use of Long Term Evaluation (LTE) access technology in 4G, LTE (evolved LTE, eLTE) technology after 4G further evolution, wireless local area network Related technologies (Wireless Local Area Network (WLAN)), a newly designed radio access technology in 5G, and a radio access network (RAN) (referred to as an access network) using these different radio access technologies for flexible insertion
  • LTE Long Term Evaluation
  • LTE evolved LTE, eLTE
  • WLAN wireless Local Area Network
  • RAN radio access network
  • the dial-up mode is connected to the unified core network.
  • the 5G system needs to decouple the core network (Core Network, CN) and the access network, that is, the core network and the access network can evolve independently without being enhanced or changed by one side network.
  • the other side of the network needs to make synchronization enhancements or changes.
  • the design of the core network in the 5G system needs to be non-aware of different radio access networks.
  • QoS quality of service
  • FIG. 1 is a schematic structural diagram of performing QoS processing for data transmission at a bearer granularity in LTE.
  • FIG. 1 illustrates only a case where a PDN connection is established between a User Equipment (UE) and a Packet Data Network (PDN).
  • UE User Equipment
  • PDN Packet Data Network
  • the core network may A plurality of Evolved Packet System bearers (EPS bearers) are set up between the UE and the PDN gateway (P-GW), and each EPS bearer carries one or more traffic flows. One or more traffic flows on an EPS bearer will have the same QoS.
  • the EPS bearer is an end-to-end logical bearer between the UE and the P-GW.
  • the EPS bearer establishes three segments of bearers on the three network interfaces that pass through the LTE network architecture, including establishing the P-GW and the serving gateway ( S5/S8bearer on the Serving Gateway, S-GW) interface, S1-bearer established on the S-GW and base station (eNB) interface, and radio bearer (RB) established on the air interface between the eNB and the UE
  • S1-bearer and the RB are together defined as an E-UTRAN Radio Access Bearer (E-RAB) between the UE and the S-GW.
  • E-RAB E-UTRAN Radio Access Bearer
  • the core bearer When the core bearer establishes an EPS bearer, it notifies the eNB of the QoS parameters of each E-RAB (ie, a bearer of the EPS bearer on the E-URTAN side), and the eNB establishes an RB between the UE and the UE on the air interface, where the eNB receives the RB.
  • the QoS parameter of the E-RAB granularity is determined, and the parameter setting of the corresponding RB is determined, and the eNB and the UE perform data scheduling transmission according to the determined RB parameter setting, and ensure QoS of the RB level on the air interface.
  • the method in which the core network and the access network are coupled together in the 3GPP system to carry out QoS processing for carrying the granularity does not satisfy the goal of the decoupling design of the core network and the access network of the future 5G system.
  • This paper provides a flow-based bearer management method, data transmission method and device, which can be full
  • the core network and the access network are decoupled to design the target, and at the same time, flexible and dynamic differential data transmission between different service flows is realized on the access network wireless link.
  • the embodiment of the invention provides a flow-based bearer management method, including:
  • service quality description information includes one or a combination of the following information: service level information, flow description information;
  • the packet description information includes at least one of the following information: service level tag information, and flow routing information.
  • the service level information includes at least one of service level tag information and the following information: priority, data packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing Information, and bandwidth information.
  • the managing the radio bearer includes performing one or more of the following management operations: establishing a radio bearer, modifying a radio bearer, and deleting a radio bearer.
  • the step of obtaining the service quality description information obtaining the service level information, including: acquiring the service level information in a predefined manner, or acquiring the service level information from the core network CN; and obtaining the flow description information, including : Acquiring the flow description information from the CN.
  • the managing the radio bearer includes: establishing a radio bearer according to the service level information, obtaining a mapping relationship between the service level information and the radio bearer; or receiving a data packet, and according to the service level information Establishing a radio bearer with the packet description information in the data packet, and obtaining a mapping relationship between the service level information and the radio bearer, where the packet description information is service level tag information; or, according to the flow description information Establishing a radio bearer, obtaining a mapping relationship between the flow description information and the radio bearer; or receiving a data packet, and establishing a radio bearer according to the flow description information and the packet description information in the data packet, to obtain the flow Describe a mapping relationship between the information and the radio bearer, where the packet description information is flow routing information; wherein the data packet is from a CN or a UE.
  • the data packet transmitted by the UE is received on a default bearer.
  • the mapping relationship with the radio bearer identification information is represented by one or more of the following manners: mapping between the service level information and the radio bearer by a mapping relationship between the service level marking information and the radio bearer identification information
  • the mapping relationship between the flow description information and the radio bearer identification information indicates a mapping relationship between the flow description information and the radio bearer; and the mapping relationship between the flow routing information and the radio bearer identification information indicates the a mapping relationship between the flow description information and the radio bearer, where the service level tag information is used to identify the service level information, and the radio bearer identification information is used to identify the radio bearer, the flow identifier information And used to identify the flow description information, where the flow routing information is included in the flow description information.
  • the method further includes: notifying the UE of a mapping relationship between the quality of service description information and the radio bearer.
  • the method further includes: receiving a data packet from the CN, determining, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer. Transmitting, by the data packet, a radio bearer, and transmitting the data packet on the determined radio bearer, where the packet description information is service level tag information; or receiving a data packet from the CN, according to the data packet.
  • the method further includes: receiving a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer Transmitting, by the radio bearer corresponding to the packet description information in the data packet, the packet description information is service level tag information; or receiving a data transmission request from the UE, according to the radio bearer identification information in the data transmission request And the corresponding radio bearer is enabled, where the radio bearer identification information in the data transmission request is: a mapping relationship between the UE according to the service level information and the radio bearer, and a packet description information in the data packet. Determining, the package description information is service level tag information.
  • the method further includes: receiving a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the flow description information and the radio bearer Transmitting, by the data packet, the radio bearer corresponding to the packet description information, where the packet description information is flow routing information; or receiving a data transmission request from the UE, according to the The radio bearer identification information in the data transmission request, the corresponding radio bearer is enabled; wherein the radio bearer identification information in the data transmission request is: the mapping relationship between the UE and the radio bearer according to the flow description information And the packet description information in the data packet is determined, and the packet description information is flow routing information.
  • a data transmission request sent by the UE receiving on a signaling radio bearer; receiving on a designated radio bearer; receiving on a media access MAC layer control information; wherein the designated radio bearer Determined for pre-defined or after establishing a radio bearer; wherein the designated radio bearer is enabled.
  • the embodiment of the invention further provides a data transmission method, including:
  • the user equipment UE receives the mapping relationship between the QoS description information and the radio bearer from the access network AN, where the QoS description information includes one or two combinations of the following information: service level information and flow description information;
  • the UE transmits the data packet on the corresponding radio bearer according to the mapping relationship between the quality of service description information and the radio bearer.
  • the mapping relationship between the service level information and the radio bearer is mapped by the service level tag information and the radio bearer identification information by one or more of the following manners:
  • the mapping relationship between the flow description information and the radio bearer is represented by a mapping relationship between the flow identifier information and the radio bearer identification information; and the mapping relationship between the flow description information and the radio bearer And indicating, by the mapping relationship between the flow routing information and the wireless bearer identification information, where the service level marking information is used to identify the service level information, where the wireless bearer identification information is used to identify the wireless bearer, the flow The identification information is used to identify the flow description information, and the flow routing information is included in the flow description information.
  • the UE transmits the data packet on the corresponding radio bearer according to the mapping relationship between the service quality description information and the radio bearer, including: the UE according to the packet description information in the data packet and the service level. a mapping relationship between the information and the radio bearer, determining a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, where the packet description information is service level tag information; or Determining, by the UE, the radio corresponding to the data packet according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer Carrying, and transmitting, on the determined radio bearer, the packet description information is flow routing information.
  • the method further includes: determining, by the UE, the radio bearer identification information that needs to be enabled according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, and sending the The data transmission request of the radio bearer identification information, where the packet description information is service level tag information; or the UE determines the need according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer.
  • the enabled radio bearer identifies information, and sends a data transmission request including the radio bearer identification information to the AN, where the packet description information is flow routing information.
  • the UE sends the data transmission request to the AN by sending the data transmission request on the signaling radio bearer, transmitting on the designated radio bearer, and transmitting the MAC layer control information by using the medium access mode;
  • the radio bearer is predefined or known by the UE in the information sent by the AN to the UE; wherein the designated radio bearer is in an enabled state.
  • the method further includes: before the receiving, by the UE, the mapping relationship between the QoS description information and the radio bearer from the access network AN, the method further includes:
  • the UE sends a data packet to the AN on a default bearer.
  • the service level information includes at least one of service level tag information and the following information: priority, data packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing Information, and bandwidth information.
  • the embodiment of the invention further provides a flow-based bearer management device, including:
  • Obtaining a module configured to obtain service quality description information, where the service quality description information includes one or two combinations of the following information: service level information, flow description information;
  • a management module configured to manage a radio bearer according to the quality of service description information; or, according to the quality of service description information, and packet description information in the received data packet, the radio bearer is managed; At least one of the information: service level tag information, flow routing information.
  • the management module is configured to manage the radio bearer, and includes one or more of the following management operations: establishing a radio bearer, modifying a radio bearer, and deleting a radio bearer.
  • the acquiring module is configured to acquire the service level information in a predefined manner, or obtain the service level information from the CN, or set to obtain the flow description information, and acquire the location from the CN. Describe the flow description information.
  • the management module is set to:
  • a radio bearer according to the service level information, obtaining a mapping relationship between the service level information and the radio bearer; or receiving a data packet, and according to the service level information and packet description information in the data packet Establishing a radio bearer, and obtaining a mapping relationship between the service level information and the radio bearer, where the packet description information is service level tag information; or
  • the data packet is from a CN or a user equipment UE.
  • the mapping relationship with the radio bearer identification information is represented by one or more of the following manners: mapping between the service level information and the radio bearer by a mapping relationship between the service level marking information and the radio bearer identification information
  • the mapping relationship between the flow description information and the radio bearer identification information indicates a mapping relationship between the flow description information and the radio bearer; and the mapping relationship between the flow routing information and the radio bearer identification information indicates the a mapping relationship between the flow description information and the radio bearer, where the service level tag information is used to identify the service level information, and the radio bearer identification information is used to identify the radio bearer, the flow identifier information And used to identify the flow description information, where the flow routing information is included in the flow description information.
  • the management module is further configured to notify the UE of a mapping relationship between the quality of service description information and the radio bearer.
  • the device further includes: a first transmission module, configured to: receive a data packet from the CN, determine, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer, Transmitting, by the data packet, a radio bearer, and transmitting the data packet on the determined radio bearer, where the packet description information is service level tag information; or receiving a data packet from the CN, according to the data packet Package description information, and the flow description information and a mapping relationship between the radio bearers, determining a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, where the packet description information is flow routing information.
  • a first transmission module configured to: receive a data packet from the CN, determine, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer, Transmitting, by the data packet, a radio bearer, and transmitting the data packet on the determined radio bearer, where the packet description information is service level tag information; or
  • the device further includes: a first transmission module, configured to: receive a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer Transmitting, by the radio bearer corresponding to the packet description information in the data packet, the packet description information is service level tag information; or receiving a data transmission request from the UE, according to the radio bearer identification information in the data transmission request And the corresponding radio bearer is enabled, where the radio bearer identification information in the data transmission request is: a mapping relationship between the UE according to the service level information and the radio bearer, and a packet description information in the data packet. Determining, the package description information is service level tag information.
  • the device further includes: a first transmission module, configured to: receive a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the flow description information and the radio bearer And enabling the radio bearer corresponding to the packet description information in the data packet, where the packet description information is flow routing information; or receiving a data transmission request from the UE, and enabling according to the radio bearer identification information in the data transmission request.
  • a first transmission module configured to: receive a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the flow description information and the radio bearer And enabling the radio bearer corresponding to the packet description information in the data packet, where the packet description information is flow routing information; or receiving a data transmission request from the UE, and enabling according to the radio bearer identification information in the data transmission request.
  • Corresponding radio bearer wherein the radio bearer identification information in the data transmission request is determined by the UE according to the mapping relationship between the flow description information and the radio bearer
  • the service level information includes at least one of service level tag information and the following information: priority, data packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing Information, and bandwidth information.
  • the embodiment of the invention further provides a data transmission device, comprising:
  • the receiving module is configured to receive a mapping relationship between the quality of service description information from the access network AN and the radio bearer, where the quality of service description information includes one or two combinations of the following information: service level information, flow description information;
  • the second transmission module is configured to transmit the data packet on the corresponding radio bearer according to the mapping relationship between the quality of service description information and the radio bearer.
  • mapping with the radio bearer identification information is indicated by one or more of the following manners.
  • a mapping relationship between the service level information and the radio bearer for uplink transmission is represented by a mapping relationship between service level tag information and radio bearer identification information; and between the flow description information and the radio bearer
  • the mapping relationship is represented by a mapping relationship between the flow identification information and the radio bearer identification information;
  • the mapping relationship between the flow description information and the radio bearer is represented by a mapping relationship between the flow routing information and the radio bearer identification information.
  • the service level tag information is used to identify the service level information
  • the radio bearer identification information is used to identify the radio bearer
  • the flow identifier information is used to identify the flow description information
  • the flow route Information is included in the stream description information.
  • the second transmission module is configured to determine, according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, the radio bearer corresponding to the data packet, and determine the radio bearer Transmitting the data packet on the radio bearer, the packet description information is service level marking information; or determining the data according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer And corresponding to the radio bearer, and transmitting the data packet on the determined radio bearer, where the packet description information is flow routing information.
  • the second transmission module is further configured to: determine, according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, the radio bearer identification information that needs to be enabled, and Sending, by the AN, a data transmission request that includes the radio bearer identification information, where the packet description information is service level tag information; or, the UE according to the packet description information in the data packet and the flow description information and the radio bearer
  • the mapping relationship determines the radio bearer identification information that needs to be enabled, and sends a data transmission request including the radio bearer identification information to the AN, where the packet description information is flow routing information.
  • the second transmission module is further configured to: before receiving the mapping relationship between the QoS description information and the radio bearer from the access network AN, send a data packet to the AN on the default bearer.
  • the service level information includes at least one of service level tag information and the following information: priority, data packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing Information, and bandwidth information.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the stream-based bearer management method.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being implemented by the processor to implement the stream-based data transmission method.
  • the flow-based bearer management method, data transmission method and device provided by the embodiments of the present invention provide service quality description information to the access network based on the characteristics of the data flow itself, and the access network performs connection based on the received data flow level information.
  • the bearer management of the incoming network does not perform QoS processing in the bearer mode strongly related to the core network and the access network.
  • the core network does not need to consider the technology adopted by the access network, and can well meet the core network in the next generation communication system.
  • the access network decouples the designed design, and at the same time, implements flexible and dynamic differential data transmission between different service flows on the access network wireless link.
  • FIG. 1 is a schematic structural diagram of performing QoS processing on a bearer granularity to perform data transmission according to an embodiment of the present invention
  • FIG. 2 is a network structure diagram of an evolved packet system defined by the 3GPP according to an embodiment of the present invention
  • FIG. 3 is a network structure diagram of a next generation mobile communication system according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for a flow-based bearer management method according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of implementing bearer management according to Embodiment 2 of the present invention.
  • FIG. 8 is a flowchart of an implementation of a third bearer management according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of implementing a bearer management according to Embodiment 4 of the present invention.
  • FIG. 10 is a flow chart of establishing a PDN connection initiated by a UE
  • 11 is a flow chart of a network initiated setup/modify/delete data flow
  • FIG. 12 is a flowchart of a UE initiated setup/modify/delete data flow
  • FIG. 13 is a schematic structural diagram of a structure of a flow-based bearer management apparatus according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a structure of a data transmission apparatus according to an embodiment of the present invention.
  • EPS Evolved Packet System bearer
  • the EPS includes an access network and a core network.
  • the access network may be an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) or a unified Terrestrial Radio Access network according to different radio access technologies used. Network, UTRAN), or the Global System for Mobile Communications Enhanced LTE Radio Access Network (GERAN).
  • the core network includes network elements/entities that perform different functions, and may include: a Home Subscriber Server (HSS), a Mobility Management Entity (MME), and a Serving GPRS Support Node (SGSN). , Policy and Charging Rule Function (PCRF) entity, S-GW, P-GW, and PDN.
  • HSS Home Subscriber Server
  • MME Mobility Management Entity
  • SGSN Serving GPRS Support Node
  • PCRF Policy and Charging Rule Function
  • FIG. 3 is a network structure diagram of a simplified next-generation mobile communication system, and the next-generation mobile communication system also includes an access network and a core network.
  • the core network of the next-generation mobile communication system needs to support network function virtualization and software-defined network.
  • the core network is divided into control plane functions (Control Plane function, CP function) and user plane functions (User Plane function) according to large functions. , UP function).
  • the CP function may include functions performed by entities such as the MME, the S-GW control plane, the P-GW control plane, and the PCRF in the evolved packet system according to the actual functions performed, and the CP function It can be implemented on the same network element/entity or on more than one network element/entity as needed.
  • the UP function may include functions performed by an entity such as an S-GW user plane and a P-GW user plane in an evolved packet system according to the actual functions performed, and the UP function may be implemented on the same network element/entity, or Implemented on more than one network element/entity as needed. If the CP function is implemented on more than one network element/entity, it is possible that these network elements/entities have interfaces with the AN, and all of the network elements/entities may be uniquely connected to the AN through only one of the network elements/entities. interface. In order to make the access network of the next generation mobile communication system access to the unified core network as shown in FIG. 3 in a flexible and pluggable manner, the network structure shown in FIG.
  • the interface between the CN and the AN will include the interface between the CN and the adaptation layer and the interface between the adaptation layer and the AN.
  • the interfaces involved in the embodiments of the present invention are all logical interfaces, and the physical interface characteristics are not limited.
  • the access network here is a general term, and may be an access network using different radio access technologies, such as an access network using LTE/eLTE technology, and an access network adopting WLAN related technology, which is introduced in 5G.
  • New wireless technology New Radio, NR
  • the AN includes one or more network elements/entities that implement the functions of the associated radio access technology, such as an eNB, such as a Central Unit (CU), a Remote Unit (RU), and, for example, an adaptation unit.
  • the related radio access technology functions include LTE or eLTE as examples, including Radio Resource Control (RRC) function, Packet Data Convergence Protocol (PDCP) function, and radio link control (Radio Link Control).
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • Radio Link Control Radio Link Control
  • RLC Radio Link Control
  • MAC Media Access Contrl
  • Physical layer Physical, PHY
  • the radio access technology function may include some or all of the functions of RRC, PDCP, RLC, MAC, PHY, and even newly designed functions, which are implemented in the same network element/entity eNB, or distributed. It is implemented in the CU and the RU, or distributed on the CU, the RU, and the adaptation unit.
  • the distribution mode can be flexibly configured according to different scenarios and different requirements.
  • FIG. 4 is a flowchart of a method for a flow-based bearer management method according to an embodiment of the present invention. Includes:
  • the AN side network element performs radio bearer (RB) management according to the quality of service description information or according to the service quality description information and the packet description information in the received data packet.
  • the service quality description information includes one of the following information. Kind or two combinations: service level information, flow description information;
  • the AN side network element is one, two or more network elements/entities that implement the related radio access technology functions mentioned above.
  • it may be one or two or more of an eNB, a CU, an RU, an adaptation unit, and the like.
  • the service level information includes service level tag information, and at least one of the following information, a packet delay, a packet loss rate, and a maximum data rate.
  • the service level information may be identified by different service level tag information, and the service level information may exist in the form of a message list, the information list is identified by the service level tag information, and may include not limited to priorities, data packets. At least one of a delay, a packet loss rate, and a maximum data rate.
  • the service level marking information may be Differentiated Services Code Point (DSCP) information, or may be QoS classification identification information, or other coding information that represents a service level.
  • DSCP Differentiated Services Code Point
  • the flow description information includes at least flow identification information, flow routing information, and bandwidth information, and may also include Allocation and Retention Priority (ARP) information.
  • the flow routing information includes at least a source IP address/IP network prefix, a target IP address/IP network prefix, a source port number, a protocol identifier of an upper layer protocol of the target port number IP, and the like.
  • the flow description information is identified by different flow identification information, and the flow description information may be in the form of a list of information.
  • the information list is identified by the flow identification information, and includes at least flow routing information and bandwidth information, and may also include ARP information.
  • the packet description information includes at least one of the following information: service level tag information, and flow routing information;
  • the radio bearer management in step 401 includes radio bearer establishment, modification, deletion, and the like.
  • the service level information is predefined or obtained from the CN.
  • the flow description information is obtained from the CN, so the above method may further include one or two of steps 400(a) and 400(b): 400(a), the AN side network element obtains the service from the core network (CN) Level information; 400 (b), the AN side network element obtains flow description information from the CN.
  • the method of the embodiment of the present invention may further include: Step 402: The AN side network element notifies the mapping relationship between the UE quality of service description information and the radio bearer.
  • the radio bearer in the mapping relationship of the notification includes at least a radio bearer that can be used for uplink transmission.
  • the downlink transmission refers to a case where data is transmitted from the CN to the AN, and then transmitted by the AN to the UE;
  • the uplink transmission refers to a case where data is transmitted by the UE to the AN and then transmitted by the AN to the CN.
  • the service level information is identified by the service level tag information, and the flow description information is identified by the flow identification information and includes flow routing information, and the radio bearer uses the radio bearer identification information to identify, and the AN side network element can pass the service level.
  • the mapping relationship between the label information and the radio bearer identifier information is used to notify the UE of the mapping relationship between the service level information and the radio bearer; the AN side network element may notify the UE of the flow by using a mapping relationship between the flow identifier information and the radio bearer identifier information. Describe the mapping relationship between the information and the radio bearer.
  • the mapping between the flow identifier information and the radio bearer identifier information includes the flow routing information of the stream identified by each flow identifier information.
  • the AN side network element may further notify the mapping relationship between the flow description information and the radio bearer by using a mapping relationship between the flow routing information and the radio bearer identification information. That is, the AN-side network element may indicate the mapping relationship with the radio bearer identification information by one or more of the following manners: the AN-side network element may indicate the mapping relationship between the service level marking information and the radio bearer identification information.
  • mapping relationship between the service level information and the radio bearer may be used by the AN side network element to indicate a mapping relationship between the flow description information and the radio bearer;
  • the mapping between the flow description information and the radio bearer may be represented by the mapping between the flow description information and the radio bearer identification information.
  • the managing the radio bearer includes: establishing a radio bearer according to the service level information, obtaining a mapping relationship between the service level information and the radio bearer; or receiving a data packet, and according to the service level information Establishing a radio bearer with the packet description information in the data packet, and obtaining a mapping relationship between the service level information and the radio bearer, where the packet description information is service level tag information; or, the management radio bearer,
  • the method includes: establishing a radio bearer according to the flow description information, obtaining a mapping relationship between the flow description information and a radio bearer; or receiving a data packet, and according to the flow description information and packet description information in the data packet Establish a wireless bearer, Obtaining a mapping relationship between the flow description information and the radio bearer, where the packet description information is flow routing information.
  • the data packet is from a CN or a UE. Wherein, when the data packet is from the UE, the data packet transmitted by the UE is received on a default bearer.
  • the method further includes: receiving a data packet from the CN, determining, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer. a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, wherein the packet description information is service level tag information; or receiving a data packet from the CN, according to the data packet.
  • the method further includes: receiving a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer Transmitting, by the radio bearer corresponding to the packet description information in the data packet, the packet description information is service level tag information; or receiving a data transmission request from the UE, according to the radio bearer identification information in the data transmission request And the corresponding radio bearer is enabled, where the radio bearer identification information in the data transmission request is: a mapping relationship between the UE according to the service level information and the radio bearer, and a packet description information in the data packet. Determining, the package description information is service level tag information.
  • the radio bearer identification information may be determined according to the packet description information in the data packet from the upper protocol layer, where the upper layer protocol layer refers to a protocol layer in the UE that is responsible for processing and transmitting the data transmission request.
  • a protocol layer (such as an access layer protocol), such as an application layer.
  • the method further includes: receiving a data packet from the CN, according to the packet description information in the data packet, and a mapping relationship between the flow description information and the radio bearer And enabling the radio bearer corresponding to the packet description information in the data packet, where the packet description information is flow routing information; or receiving a data transmission request from the UE, and enabling according to the radio bearer identification information in the data transmission request.
  • the radio bearer identification information in the data transmission request is determined by the UE according to the mapping relationship between the flow description information and the radio bearer, and the packet description information in the data packet.
  • the packet description information is flow routing information.
  • the data transmission request sent by the UE is received by one of the following manners: 1) signaling Receiving on the radio bearer; 2) receiving on the designated radio bearer; 3) receiving on the medium access MAC layer control information; wherein the designated radio bearer is predefined or determined after establishing the radio bearer; Specifies that the radio bearer is enabled.
  • an embodiment of the present invention further provides a data transmission method, including:
  • Step 501 The UE receives a mapping relationship between the QoS description information and the radio bearer from the access network AN.
  • the QoS description information includes one or two combinations of the following information: service level information and flow description information. ;
  • Step 502 The UE transmits the data packet on the corresponding radio bearer according to the mapping relationship between the service quality description information and the radio bearer.
  • the UE transmits the data packet on the corresponding radio bearer according to the mapping relationship between the service quality description information and the radio bearer, and may include: the UE according to the packet description information in the data packet and the service a mapping relationship between the level information and the radio bearer, determining a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, where the packet description information is service level marking information; or Determining, by the UE, the radio bearer corresponding to the data packet according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer, and transmitting the data packet on the determined radio bearer.
  • the packet description information is flow routing information.
  • the method further includes: determining, by the UE, the radio bearer identification information that needs to be enabled according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, and sending the The data transmission request of the radio bearer identification information, where the packet description information is service level tag information; or the UE determines the need according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer.
  • the enabled radio bearer identifies information, and sends a data transmission request including the radio bearer identification information to the AN, where the packet description information is flow routing information.
  • the UE sends the data transmission request to the AN by one of: 1) transmitting on a signaling radio bearer; 2) transmitting on a designated radio bearer; 3) transmitting media layer MAC layer control information
  • the designated radio bearer is predefined or known by the UE in the information sent by the AN to the UE; wherein the designated radio bearer is in an enabled state.
  • the method further includes: the UE sending a data packet to the AN on the default bearer.
  • Embodiment 1 describes a method for performing RB management by an AN side network element according to service level information.
  • the method of Embodiment 1 is applicable to transmission of a service or a data stream without a specific bit rate requirement.
  • FIG. 6 is a flowchart of an implementation of bearer management in Embodiment 1, and includes:
  • Step 601 Establish a PDN connection, or establish a data flow
  • This step establishes a PDN connection between the UE and the PDN, or simultaneously establishes a data flow on the PDN connection in the process of establishing a PDN connection, or establishes a data flow on the PDN connection after establishing a PDN connection.
  • the CN notifies the AN service level information in the process of establishing a PDN connection or in the process of establishing a data flow.
  • the service level information includes service level tag information, and includes but is not limited to at least one of a priority, a packet delay, a packet loss rate, and a maximum data rate.
  • the service level information may be identified by different service level tag information, and the service level information may exist in the form of a message list, the information list is identified by the service level tag information, and may include not limited to priority, packet delay, data Packet loss rate, at least one of the maximum data rates.
  • Table 1 below is an example of a possible service level information list.
  • the service level marking information in Table 1 is DSCP, but the service level marking information is not limited to other information that is different from the DSCP naming and encoding. , such as QoS classification identification information. Embodiments of the present invention do not limit other forms of presence of service level information or service level information lists.
  • Step 602 The AN establishes an RB according to the service level information.
  • the service level information is predefined in the protocol, or is notified to the AN by the CN in 601 (ie, the AN is acquired from the CN).
  • the AN establishes an RB according to one or more factors in the load, the resource usage, the signal quality on the wireless communication link, and the management policy of the AN according to Table 1.
  • the AN establishes three RBs, which are assumed to be RB3, RB4, and RB5, wherein the DSCP is 101110, 011010, 101010, and 101100, and the service level is mapped to RB3, and the DSCP is 100010, and the service level is mapped to RB4.
  • the service level of the DSCP is 010010, 000000, and 001010 is mapped to the RB5.
  • this is only one implementation of the embodiment. It does not limit the number of RBs that the AN establishes based on the service level information and which DSCPs are mapped to. Which RBs are on.
  • the step further includes: the AN side network element notifying the mapping relationship between the UE service level information and the RBs that can be used for uplink transmission.
  • the AN side network element passes the service level marking information (such as DSCP) and the radio bearer identification information (for example, the radio bearer identification information of RB3, RB4, and RB5 is assumed to be 3, 4 respectively.
  • the mapping relationship between 5) represents the mapping relationship between the service level information and the RBs available for uplink transmission, and is notified to the UE.
  • the DSCPs with the values of 101110, 011010, 101010, and 101100 are mapped to the radio bearer identifier with the value of 3, and the DSCP with the value of 100010 is mapped to the radio bearer identifier with the value of 4.
  • the mapping relationship between the UE notification service level information and the RBs available for downlink transmission is not limited.
  • the AN receives the downlink data packet from the CN, and determines, according to the service level flag information in the data packet, which RB is transmitted to the data packet, where the service level flag information and the service level flag in 601
  • the service level marking information in 601 is DSCP in this embodiment
  • the DSCP is also used in this step, and the service level marking information may be included in the header of the data packet, for example, in the header of the IP data packet.
  • the service level identification information is other coding information, such as QoS classification identification information
  • the service level marking information in the data packet in this step is also QoS classification identification information.
  • the AN receives the data packet from the CN, and the DSCP in the data packet header is 101110 or 011010 or 010010, and the AN corresponds the data packet with the DSCP 101110 or 011010 to the transmission on the RB3, and the DSCP is 010010.
  • the data packet corresponds to the transmission on RB5.
  • the UE determines, according to the service level flag information in the data packet and the mapping relationship between the service level information notified by the AN and the RB available for uplink transmission, to which RB the data packet is transmitted.
  • the first embodiment further includes:
  • the AN receives the data packet, and enables the related RB according to the service level marking information in the data packet; or the AN receives the data transmission request from the UE, and enables the related RB according to the RB information in the data transmission request.
  • the AN receives the downlink data packet from the CN, and enables the relevant RB according to the service level flag information in the data packet.
  • the AN receives the data packet from the CN, and the DSCP in the data packet header is 101110 or 011010 or 010010, and the AN enables the RB3 and RB5 mapped by the DSCP.
  • the so-called enable RB means that the initialization operation of the RB related variable is performed.
  • the data received by the AN is processed by the relevant protocol entity of the RBs and then sent to the UE through the air interface.
  • the AN enables the relevant RB, and the AN also notifies the UE to enable the corresponding RB through the air interface. Similarly, after receiving the data from the air interface, the UE processes the related protocol entity of the corresponding RB.
  • the related protocol entity of the RB includes at least one of a PDCP entity, an RLC entity, and a MAC entity.
  • the UE For the uplink transmission, when the UE determines that the uplink data needs to be transmitted on the RB that is not enabled, the UE passes the signaling RB (defined in the related art, which is not described herein again) or the specific RB described in step 602, or the MAC layer control.
  • the information is sent to the AN, where the data transmission request includes the RB information that is requested to be enabled, and the AN enables the related RB according to the RB information, where the RB information may be the radio bearer identification information.
  • the UE determines, according to the mapping relationship between the service level information and the RBs that can be used for uplink transmission, uplink data that needs to be transmitted on the RB that is not enabled. For example, the UE receives the data packet from the application layer, and the data packet.
  • the DSCP in the packet header is 101110, and the UE determines, according to the mapping relationship between the service level marking information and the radio bearer identification information received in step 602, that the data packet needs to be transmitted on the RB3, and the data transmission sent by the UE to the AN is performed.
  • the request contains the identification information of RB3.
  • the first embodiment describes the RB establishment process in the RB management, and the AN deletes part or all of the RBs that have been established according to at least one of the following:
  • the AN determines to delete part or all of the RBs that have been established according to one or more factors in the load, the resource usage, the signal quality on the wireless communication link, and the management policy of the AN;
  • the AN informs the UE to delete the part or all of the RBs.
  • the AN modifies some or all of the RBs that have been established according to at least one of the following:
  • the service level information obtained by the AN from the CN is changed;
  • the AN is based on load, resource usage, signal quality on the wireless communication link, and management of the AN.
  • One or more factors in the policy modify some or all of the RBs that have been established;
  • the AN informs the UE to modify the part or all of the RBs.
  • modifying RB means at least one of the following:
  • the configuration parameters of the RB-related protocol entity are described in the 3GPP related protocol standard 36.331, and are not described herein again.
  • the second embodiment describes the method for performing RB management on the AN side network element according to the service level information and the packet description information in the data packet.
  • the packet description information is the service level marking information.
  • the package description information may be included in the data packet.
  • the method of the second embodiment is applicable to the transmission of traffic or data streams without specific bit rate requirements.
  • Figure 7 is a flowchart of implementation of bearer management in the second embodiment, including:
  • Step 701 Establish a PDN connection, or establish a data flow.
  • the implementation process is the same as the step 601 of the first embodiment, and details are not described herein again.
  • Step 702 The AN receives the data packet, and establishes an RB according to the service level information and the service level marking information in the data packet.
  • the service level information in this embodiment may also be predefined in the protocol, or the CN is notified to the AN in 701, and the service level information list shown in Table 1 is also taken as an example.
  • the AN receives the data packet from the CN, and establishes an RB according to the service level marking information and the service level information in the data packet.
  • the AN receives the data packet from the CN, and the DSCP in the data packet header is 101110 or 011010 or 010010.
  • the AN establishes 2 RBs, which are RB3 and RB4 respectively, and the data packet with the DSCP of 101110 or 011010 is transmitted to the RB3.
  • the data packet with the DSCP of 010010 is correspondingly transmitted to the RB5.
  • one or more factors in the load, the resource usage, the signal quality on the wireless communication link, and the management strategy of the AN may also be considered.
  • the embodiment further includes step 702-1 before the step 702, and the AN is at least built.
  • Establishing a default bearer RBx when the UE has an uplink transmission, the UE transmits the at least one data packet on the RBx, and after receiving the data packet, the AN establishes the service level marking information and the service level information according to the data packet.
  • RB can also consider one or more factors in the load, resource usage, signal quality on the wireless communication link, and the management strategy of the AN in this process. For example, the UE receives a data packet from the application layer, the DSCP in the data packet header is 101110, and the UE transmits the at least one data packet with the DSCP being 101110 on the RBx.
  • the AN After receiving the data packet, the AN receives the data packet according to the data packet.
  • the DSCP and the service level information described in step 701 establish RB3, and notify the UE of the mapping relationship between the service level information and the RB3.
  • the UE After receiving the message, the UE transmits the data packet with the DSCP 101110 corresponding to the RB3.
  • the UE has an uplink transmission. If the RB that is available for uplink transmission has been established except for the RBx, the UE performs the service level marking information and the AN notification according to the data packet. The mapping between the service level information and the already established RBs available for uplink transmission, determining that the data packet is not mapped to any one of the established RBs, the UE transmits the RBx At least one packet.
  • the RB establishment process in the RB management is described in the above steps, and the AN deletes some or all of the RBs that have been established according to at least one of the following:
  • the AN determines to delete part or all of the RBs that have been established according to one or more factors in the load, the resource usage, the signal quality on the wireless communication link, and the management policy of the AN;
  • the AN informs the UE to delete the part or all of the RBs.
  • the AN modifies some or all of the RBs that have been established according to at least one of the following:
  • the service level information obtained by the AN from the CN is changed;
  • the AN modifies some or all of the RBs that have been established according to one or more factors of load, resource usage, signal quality on the wireless communication link, and the management strategy of the AN;
  • the AN informs the UE to modify the part or all of the RBs.
  • FIG. 8 is a flowchart of an implementation of bearer management in this embodiment, including:
  • Step 801 Establish a data stream.
  • the data flow may be established on the PDN connection simultaneously during the establishment of the PDN connection, or may be established on the PDN connection after the PDN connection is established.
  • the CN in the process of establishing a data flow, notifies the flow description information of the AN data stream, where the flow description information includes at least the flow identification information, the flow routing information, and the bandwidth information; and the flow description information may further include the ARP information.
  • the flow description information is identified by different flow identification information, and the flow description information may be in the form of a list of information.
  • the information list is identified by the flow identification information, and includes at least flow routing information and bandwidth information, and may also include ARP information.
  • the CN can also notify the AN service level information, and the implementation process is the same as that in Embodiment 1, and will not be described again.
  • Step 802 The AN establishes an RB according to the flow description information, or establishes an RB according to the flow description information and the service level information.
  • the service level information in this embodiment may also be predefined in the protocol, or the CN is notified to the AN in step 801, and the service level information list shown in Table 1 is also taken as an example.
  • Data stream 1 stream identification information 1, flow routing information 1, bandwidth information 1 (takes the value of X), ARP1;
  • Data stream 2 stream identification information 2, flow routing information 2, bandwidth information 2 (takes the value Y), ARP2;
  • Data stream 3 stream identification information 3, flow routing information 3, bandwidth information 3 (takes the value X), ARP3;
  • Data stream 4 stream identification information 4, flow routing information 4, bandwidth information 4 (takes the value Y), ARP4;
  • the AN establishes two RBs according to the flow description information, namely RB6 and RB7, and the AN maps the data stream 1 and the data stream 3 to the RB6, and maps the data stream 2 and the data stream 4 to the RB7.
  • the AN maps data streams with the same or similar bandwidth to the same RB, only It is an embodiment, and does not limit the AN synthesis based on other information in the flow description information, and can comprehensively consider the flow description information, the service level information, the load, the resource usage, the signal quality on the wireless communication link, and the AN.
  • One or more factors in the management policy establish RBs and map the data flows to different RBs.
  • one or more other RBs may be established according to the service level information list, such as RB3 to RB5 as described in Embodiment 1, and similarly DSCP is 101110, 011010, The service levels of 101010 and 101100 are mapped to RB3, the service level of DSCP is 100010 is mapped to RB4, and the service level of DSCP is 010010, 000000, and 001010 is mapped to RB5.
  • the step further includes: the AN notifying the UE of the mapping relationship between the flow description information and the radio bearer, or establishing only the service level information.
  • the mapping relationship between the service level information and the radio bearer is also notified to the UE.
  • the flow description information may be identified by the flow identification information. For example, when the foregoing RB6-RB7 (which can be used for uplink transmission) is established in the embodiment, the AN maps the data flow 1 and the data flow 3 to the RB6, and the data flow 2 And the data flow label 4 is mapped to the RB7.
  • the AN can establish the mapping relationship between the flow identification information 1 and the flow identification information 3 to RB6, and the mapping relationship between the flow identification information 2 and the flow identification information 4 to RB7 and notify the UE of the flow identification information and The mapping relationship between radio bearers (identified by radio bearer identification information).
  • the AN may establish a mapping relationship between the flow routing information and the RB and notify the mapping relationship between the flow routing information of the UE and the radio bearer (identified by the radio bearer identification information).
  • the notification manner of the mapping relationship between the service level information and the radio bearer is the same as that of the first embodiment, and details are not described herein again.
  • the AN receives the data packet from the CN, determines, according to the flow routing information or the service level flag in the data packet, which RB is transmitted on the data packet, and applies the situation determined according to the service level flag.
  • RB3 to RB5 the implementation process of the uplink and the downlink is as described in the first embodiment, and will not be described again.
  • This embodiment only describes the conditions (including uplink and downlink) determined according to the flow routing information.
  • Each data stream has flow routing information that is different from other data flows. According to the flow routing information in the data packet, it can be determined which data stream the data packet comes from. For example, in the data packet received by the AN, the flow routing information included in the packet header is the flow routing information 1 and the flow routing information 3.
  • the AN transmits the data stream 1 and the data stream 3 to the RB6.
  • the AN may Root The flow identification information is determined according to the flow routing information in the data packet and the flow description information obtained in step 801, and the corresponding RB is determined according to the flow identification information, or the AN may use the flow routing information in the data packet and the flow obtained in step 801.
  • the description information directly determines the corresponding RB.
  • the UE determines, according to the flow routing information in the data packet and the mapping relationship between the flow description information notified by the AN and the radio bearer, which RB is transmitted to the RB, and in actual implementation, the UE may use the data according to the data.
  • the flow routing information in the packet and the mapping relationship between the flow description information of the AN notification and the radio bearer determine the flow identification information, and then determine the corresponding RB according to the flow identification information, or the UE may notify the flow according to the flow routing information and the AN in the data packet.
  • the mapping relationship between the flow description information and the radio bearer directly determines the corresponding RB, where the mapping relationship between the flow description information and the radio bearer includes flow routing information of each flow.
  • the embodiment may further include:
  • Step 803 The AN receives the data packet, enables the relevant RB according to the flow routing information or the service level flag in the data packet, or receives the data transmission request from the UE, and enables the related RB according to the information in the data transmission request.
  • the method for enabling the related RB according to the service level flag is the same as that of the first embodiment, and is not described here.
  • the following describes only the implementation process for enabling related RBs based on flow routing information.
  • the AN receives the downlink data packet from the CN, and enables the relevant RB according to the flow routing information in the data packet.
  • the flow routing information included in the packet header is the flow routing information 1 and the flow routing information 3
  • AN enables RB6 mapped by data stream 1 and data stream 3.
  • the AN enables RB6, and the AN also notifies the UE to enable RB6 through the air interface.
  • the UE determines that the uplink data needs to be transmitted on the RB that is not enabled.
  • the UE maps the flow routing information in the data packet and the flow description information received from the AN to the radio bearer.
  • the relationship determines that the uplink data needs to be transmitted on the RB that is not enabled, and sends a data transmission request to the AN, where the data transmission request includes the RB information that is requested to be enabled, and the AN enables the relevant RB according to the RB information.
  • the behavior of deleting an RB and modifying an RB by the AN is the same as that of the second embodiment, and details are not described herein again.
  • This embodiment details the method for the RN to perform RB management according to the QoS description information and the packet description information in the data packet.
  • the packet description information includes at least one of the following information: flow routing information, service level marking information, and the like.
  • the implementation time packet description information can be included in the packet header.
  • the method of the fourth embodiment is applicable to the transmission of services or data streams without specific bit rate requirements, and also to the transmission of services or data streams with specific bit rate requirements.
  • FIG. 9 is a flowchart of an implementation of bearer management in this embodiment, including:
  • Step 901 Establish a data stream.
  • step 901 the actual implementation process of step 901 is the same as that of the third embodiment, and details are not described herein again.
  • Step 902 The AN receives the data packet, establishes an RB according to the flow description information and the flow routing information in the data packet, or establishes an RB according to the flow description information, the service level information, and the flow description information in the data packet; or according to the service.
  • the RB is established by the level information and the service level tag information in the data packet.
  • the method for establishing an RB according to the service level information and the service level marking information in the data packet in the embodiment is the same as that in the second embodiment, and is not described in detail in this embodiment.
  • This embodiment only exemplifies the other two cases described above.
  • four data streams are created.
  • the AN receives the data packet from the CN, and the flow routing information included in the data packet header is the flow routing information 1 and the flow routing information 3.
  • the AN may further integrate according to the flow description information received in step 901. Considering one or more factors in the service level information, the load, the resource usage, the signal quality on the wireless communication link, and the management policy of the AN, the RB6 is established, and the flow routing information is the data of the flow routing information 1 and the flow routing information 3.
  • the packet corresponds to the transmission on RB6.
  • the embodiment further includes step 902-1 before the step 902: the AN establishes at least one default bearer RBx, and when the UE has uplink transmission, the UE transmits at least one uplink data packet on the RBx, the AN.
  • the RB is established according to the flow routing information in the data packet and the flow description information received in step 901.
  • the service level information, the load, and the resource usage may be comprehensively considered in the process.
  • the UE receives the data packet from the application layer, and the flow routing information in the data packet header is the flow routing information 2.
  • the UE transmits the flow routing information to the at least one data packet of the flow routing information 2 on the RBx, and the AN receives the The at least one data packet Then, the RB7 is established, and the mapping relationship between the flow description information (data flow 2) and the RB7 is notified to the UE. After receiving the message, the data packet whose flow routing information is the flow routing information 2 is correspondingly transmitted on the RB7.
  • the behavior of deleting an RB and modifying an RB by the AN is the same as that of the second embodiment, and details are not described herein again.
  • QoS processing is no longer performed in a bearer manner in which the core network and the access network are strongly related.
  • the core network does not need to consider the technology adopted by the access network, and is connected based on the characteristics of the data stream itself.
  • the access network provides service quality description information, and the access network performs bearer management of the access network based on the received data flow level information, which can well meet the goal of decoupling design of the core network and the access network in the next generation communication system.
  • flexible and dynamic differential data transmission between different service flows is realized on the access network wireless link.
  • FIG. 10 is a flowchart of establishing a PDN connection initiated by a UE, including:
  • Step 1001 The UE initiates a PDN connection request.
  • the process may be a separate PDN connection establishment request, or may be requested to establish a data flow simultaneously in the PDN connection establishment request;
  • the PDN connection request includes a UE identifier, and the PDN connection request may further include data flow establishment request description information for the case that the data flow needs to be established.
  • the data flow setup request description information includes at least flow identification information and flow routing information, and may also include requested bandwidth information.
  • Step 1002 Implementing a core network element/entity of the CP function
  • a core network element/entity of the CP function for convenience of description, the following core network element/entity that implements the CP function is referred to as a CP functional entity, but does not limit its existence form, for example, may be one or more
  • the network element/entity of the application function Application Funciton, AF
  • Step 1003 The CP function entity may also go to the user database to obtain the subscription information of the UE. If the CP function entity has acquired or obtained the information from other functional entities in the process, This step may not be performed.
  • Step 1004 The CP functional entity generates service quality description information.
  • the service quality description information is the corresponding information mentioned in the foregoing embodiment of the present invention.
  • This step is an optional step. If the service level information is predefined information and the data flow is not established in this process, this step does not need to be performed.
  • Step 1005 The CP function entity sends the generated QoS description information to the core network element/entity that implements the UP function.
  • the core network element/entity that implements the UP function is called the UP function entity. However, it does not limit its form of existence, such as one or more core network elements/entities, for use by UP functional entities.
  • This step is an optional step. If the service level information is predefined information and the data flow is not established in this process, this step does not need to be performed.
  • Step 1006 The CP function entity sends the generated service quality description information to the AN.
  • the flow description information sent by the CP functional entity to the AN in this step includes the flow description information of the data flow successfully established by the CP functional entity. If the service level information is the predefined information, the information sent by the CP functional entity to the AN in this step does not need to include the service level information.
  • the AN After receiving the quality of service description information, the AN uses the quality of service description information as described in the above embodiments when performing the above embodiments of the present invention.
  • Step 1007 The CP function entity sends a setup PDN connection accept message to the UE.
  • the PDN connection accept message contains flow description information of the successfully established data flow.
  • Step 1008 The UE sends a PDN connection complete message to the CP function entity.
  • Figure 11 is a flowchart of a network initiated setup/modify/delete data flow.
  • the network initiated process of establishing/modifying/deleting a data flow may include:
  • Steps 1101a/1101b may be triggered by the application layer to establish a new data stream on the current PDN connection, modify (eg, change the bandwidth of the data stream, etc.) or delete the already established data stream. It may also be triggered by a change in subscription data or a change in carrier policy configured by the CP functional entity.
  • Step 1102 The CP function entity determines, according to the trigger condition described above, that an operation of establishing/modifying/deleting the step data stream needs to be performed, and the CP function entity generates flow description information of the data stream that needs to be established/modified.
  • Step 1103 The CP function entity sends the information of the data flow that is created/modified/deleted to the UP function entity, and the information that is delivered includes the flow description information.
  • Step 1104 The CP function entity sends information about the data flow of the established/modified/deleted to the AN, and the information sent includes the flow description information.
  • the AN After receiving the stream description information, the AN uses the stream description information as described in the above embodiments when performing the above embodiments of the present invention.
  • Step 1105 The AN notifies the UE of the data flow established/modified/deleted, where the notification includes flow description information.
  • Step 1106 The UE sends an establishment/modification/delete acceptance message to the CP functional entity through the AN.
  • the flow of establishing/modifying/deleting data flows initiated by the UE in the embodiment of the present invention may include:
  • Step 1201 The application layer of the UE may trigger to establish a new data flow on the current PDN connection, modify (for example, change the bandwidth of the data flow, etc.) or delete the established data flow.
  • This step may be triggered by the AF, and the AF notifies the application layer of the UE, and then the application layer of the UE triggers the UE to send the resource request of step 1202 to request a subsequent process of the process.
  • This step may also be triggered by the UE according to the operation of the user, and the UE is triggered to send the resource request of step 1202 to request a subsequent process of the process.
  • Step 1202 The UE sends a resource request, where the request includes data flow establishment/modification/deletion request description information of the data flow that needs to be established/modified/deleted, and the data flow establishment/modification/deletion request description information includes at least flow identification information and flow routing.
  • the information may also include the requested bandwidth information.
  • Step 1203 After receiving the resource request, the CP function entity may go to the AF to obtain or verify the “data flow establishment/modification/deletion request description information”.
  • the CP functional entity may also be integrated or authenticated based on the subscription information of the UE that has been obtained.
  • the subsequent CP function entity determines that the operation of creating/modifying/deleting the data stream needs to be performed. Steps 1204 to 1208 are completely the same as steps 1002 to 1006, and are not described again.
  • the embodiment of the present invention further provides a flow-based bearer management apparatus, including:
  • the obtaining module 1301 is configured to obtain the quality of service description information, where the quality of service description information includes one or two combinations of the following information: service level information and flow description information;
  • the management module 1302 is configured to manage the radio bearer according to the quality of service description information or according to the quality of service description information and the packet description information in the received data packet; the package description information includes at least one of the following information : Service level tag information, flow routing information.
  • the management module 1302 is configured to manage the radio bearer, including performing one or more of the following management operations: establishing a radio bearer, modifying a radio bearer, and deleting a radio bearer.
  • the obtaining module 1301 is configured to acquire the service level information in a predefined manner, or obtain the service level information from the core network CN, or set to obtain the flow description information,
  • the CN acquires the flow description information.
  • the management module 1302 is configured to: establish a radio bearer according to the service level information, obtain a mapping relationship between the service level information and the radio bearer; or receive a data packet, and according to the service level information,
  • the packet description information in the data packet establishes a radio bearer, and obtains a mapping relationship between the service level information and the radio bearer, where the packet description information is service level tag information; or, according to the flow description information, And performing a mapping relationship between the flow description information and the radio bearer; or receiving a data packet, and establishing a radio bearer according to the flow description information and the packet description information in the data packet, to obtain the flow description a mapping relationship between the information and the radio bearer, where the packet description information is flow routing information; wherein the data packet is from a CN or a UE.
  • mapping relationship with the radio bearer identification information is represented by one or more of the following manners: mapping between the service level information and the radio bearer by a mapping relationship between the service level marking information and the radio bearer identification information
  • the mapping relationship between the flow description information and the radio bearer identification information indicates a mapping relationship between the flow description information and the radio bearer; and the mapping relationship between the flow routing information and the radio bearer identification information indicates the a mapping relationship between the flow description information and the radio bearer, where the service level tag information is used to identify the service level information, and the radio bearer identification information is used to identify the radio bearer, the flow identifier information And used to identify the flow description information, where the flow routing information is included in the flow description information.
  • the management module 1302 is further configured to: notify the UE of a mapping relationship between the quality of service description information and the radio bearer.
  • the device may further include: a first transmission module 1303, configured to: receive a data packet from the CN, according to packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer Determining a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, where the packet description information is service level tag information; or receiving a data packet from the CN, according to the data a packet description information in the packet, and a mapping relationship between the flow description information and the radio bearer, determining a radio bearer corresponding to the data packet, and transmitting the data packet on the determined radio bearer, the packet
  • the description information is flow routing information.
  • the first transmission module 1303 is configured to: receive a data packet from the CN, enable the data according to the packet description information in the data packet, and a mapping relationship between the service level information and the radio bearer.
  • the packet description information in the packet is a radio bearer corresponding to the information, and the packet description information is service level tag information; or receiving a data transmission request from the UE, and enabling the corresponding wireless according to the radio bearer identification information in the data transmission request.
  • a bearer where the radio bearer identification information in the data transmission request is determined by the UE according to a mapping relationship between the service level information and the radio bearer, and packet description information in a data packet, where The package description information is service level tag information.
  • the radio bearer identification information may be determined according to the packet description information in the data packet from the upper protocol layer, where the upper layer protocol layer refers to a protocol layer in the UE that is responsible for processing and transmitting the data transmission request.
  • a protocol layer (such as an access layer protocol), such as an application layer.
  • the first transmission module 1303 is further configured to: receive a data packet from the CN, enable the foregoing according to the packet description information in the data packet, and the mapping relationship between the flow description information and the radio bearer.
  • the packet description information is a radio bearer
  • the packet description information is flow routing information; or receiving a data transmission request from the UE, and enabling the corresponding radio bearer according to the radio bearer identification information in the data transmission request.
  • the radio bearer identification information in the data transmission request is determined by the UE according to the mapping relationship between the flow description information and the radio bearer, and the packet description information in the data packet, where the packet is The description information is flow routing information.
  • the service level information includes service level tag information and at least one of the following information One: priority, packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing information, and bandwidth information.
  • an embodiment of the present invention further provides a data transmission apparatus, including: a receiving module 1401, configured to receive a mapping relationship between quality of service description information from an access network AN and a radio bearer;
  • the service quality description information includes one or two combinations of the following information: service level information and flow description information; and the second transmission module 1402 is configured to set the data according to the mapping relationship between the service quality description information and the radio bearer.
  • the packet is transmitted on the corresponding radio bearer.
  • the mapping relationship with the radio bearer identification information is represented by one or more of the following: the mapping relationship between the service level information and the radio bearer for uplink transmission passes the service level marking information and the radio bearer And a mapping relationship between the flow description information and the radio bearer is represented by a mapping relationship between the flow identifier information and the radio bearer identification information; the flow description information and the radio bearer The mapping relationship between the traffic routing information and the radio bearer identification information is used to indicate the service level information, where the radio bearer identification information is used to identify the wireless The bearer, the flow identifier information is used to identify the flow description information, and the flow routing information is included in the flow description information.
  • the second transmission module 1402 is configured to: determine, according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, the radio bearer corresponding to the data packet, and determine the radio bearer Transmitting the data packet on the radio bearer, where the packet description information is service level marking information; or determining the data packet according to the packet description information in the data packet and the mapping relationship between the flow description information and the radio bearer. Corresponding radio bearers, and transmitting the data packet on the determined radio bearer, where the packet description information is flow routing information.
  • the second transmission module 1402 is further configured to: determine, by the UE, the radio bearer identification information that needs to be enabled according to the packet description information in the data packet and the mapping relationship between the service level information and the radio bearer, and Transmitting, to the AN, a data transmission request including the radio bearer identification information, where the packet description information is service level tag information; or, the UE is configured according to packet description information in the data packet and the flow description information and the radio bearer
  • the mapping relationship determines the radio bearer identification information that needs to be enabled, and sends a data transmission request including the radio bearer identification information to the AN, where the packet description information is flow routing information.
  • the second transmission module 1402 is further configured to: before receiving the mapping relationship between the QoS description information and the radio bearer from the access network AN, send a data packet to the AN on the default bearer.
  • the service level information includes at least one of service level tag information and the following information: priority, data packet delay, packet loss rate, maximum data rate; the flow description information includes flow identification information, flow routing Information and bandwidth information.
  • the flow-based bearer management device and the data transmission device provided in this embodiment may be used to implement the technical solution of the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the stream-based bearer management method.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being implemented by the processor to implement the stream-based data transmission method.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • Embodiments of the invention are not limited to any specific form of combination of hardware and software.
  • Flow-based bearer management method, data transmission method and device provided by embodiments of the present invention, Providing the quality of service description information to the access network according to the characteristics of the data stream itself, and the access network performs bearer management of the access network based on the received information of the data flow level, and no longer carries the bearer related to the core network and the access network.
  • the method performs QoS processing, and the core network does not need to consider the technology adopted by the access network, and can well meet the target of decoupling design of the core network and the access network in the next generation communication system, and at the same time, on the wireless link of the access network. Achieve flexible, dynamic, and differentiated data transfers between different traffic flows.

Abstract

本文公布一种基于流的承载管理方法、数据传输方法及装置，其中，基于流的承载管理方法，包括：获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；根据所述服务质量描述信息，或者根据所述服务质量描述信息、以及接收到的数据包中的包描述信息，管理无线承载。

Description

一种基于流的承载管理方法、数据传输方法及装置 技术领域
本申请涉及但不限于移动通信技术，尤指一种基于流的承载管理方法、数据传输方法及装置。
背景技术
在过去的几十年间，移动通信网络经历了持续的发展，从2G、3G一直发展到4G，在此过程中新型通信设备，比如智能终端，手持式平板电脑等不断涌现，而新型通信设备的出现又催生了大量新型应用、新型通信场景的产生，从而使得下一代/5G移动通信系统，将从目前以人为中心的通信发展到既包括人际间通信也包括物体间通信的万物互联系统。
为实现万物互联，5G系统将使用一切有可能使用的网络，因此就移动通信技术本身而言，5G系统不是单一的仅使用一种无线接入技术的系统，而是可以使用包括已有无线接入技术以及新设计的无线接入技术的融合系统，比如融合使用4G中的长期演进(Long Term Evaluation，LTE)接入技术，4G进一步演进之后的LTE(evolved LTE，eLTE)技术，无线本地局域网相关技术(Wireless Local Area Network，WLAN)，5G中新设计的无线接入技术，采用这些不同无线接入技术的无线接入网(Radio Access Network，RAN)(简称接入网)以灵活可插拔的方式接入到统一的核心网中。
为确保网络的可扩展性，5G系统需要去耦合设计核心网(Core Network，CN)和接入网，也即核心网和接入网可以独立演进，不会因为一侧网络的增强或改变而导致另一侧网络需要做出同步增强或改变，换句话说，5G系统中核心网的设计需要做到对不同的无线接入网无感知。
无论是支持人际间通信还是支持物体间通信，不同的应用服务、不同的应用场景都对通信过程中的服务质量(Quality of Service，QoS)有相应的要求，保证一致的QoS是5G系统中需要考虑的一个重要因素。
目前第三代合作伙伴项目(3GPP，the 3rd Generation Partnership Project) 定义的系统中，核心网对业务QoS的保证是和接入网所采用的无线接入技术相关的，接入网根据核心网通知的QoS参数进行数据调度传输。以LTE的QoS机制为例，数据传输时以承载(bearer)作为最小QoS处理单位，如图1为LTE中以承载粒度执行QoS处理进行数据传输的结构示意图。图1只示例用户设备(UE)和分组数据网络(Public Data Network，PDN)之间建立一个PDN连接(PDN connection)的情况，为服务于该PDN连接上具有不同QoS需求的业务，核心网可以在UE和PDN网关(PDN gateway，P-GW)之间建立多个演进分组系统承载(Evolved Packet System bearer，EPS bearer)，每个EPS bearer上承载一个或多个业务流(traffic flow)，承载在一个EPS bearer上的一个或者多个业务流将具有相同的QoS。EPS bearer是UE和P-GW之间的端到端逻辑承载，EPS bearer在LTE网络架构中在所经过的三个网络接口上对应建立了三段承载，包括建立在P-GW与服务网关(Serving Gateway，S-GW)接口上的S5/S8bearer，建立在S-GW与基站(eNB)接口上的S1-bearer以及建立在eNB和UE之间空中接口上的无线承载(Radio Bearer，RB)，其中S1-bearer和RB一起又被定义为UE与S-GW之间的演进统一陆地无线接入网承载(E-UTRAN Radio Access Bearer，E-RAB)。核心网建立EPS bearer时，会通知eNB每个E-RAB(即EPS bearer在E-URTAN侧的一段承载)的QoS参数，eNB对应在空中接口上建立和UE之间的RB，其中eNB根据收到的E-RAB粒度的QoS参数，确定对应RB的参数设置，eNB和UE根据所确定的RB参数设置，进行数据调度传输，保证空中接口上RB级别的QoS。
3GPP系统中这种核心网和接入网耦合在一起的以承载为粒度执行QoS处理进行传输的方法，并不满足未来5G系统核心网和接入网去耦合设计的目标。
发明概述
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供了一种基于流的承载管理方法、数据传输方法及装置，能够满 足下一代通信系统中核心网和接入网去耦合设计的目标，同时在接入网无线链路上实现不同业务流之间的灵活、动态的差异化数据传输。
本发明实施例提供了一种基于流的承载管理方法，包括：
获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
根据所述服务质量描述信息，管理无线承载；或者，
根据所述服务质量描述信息、以及接收到的数据包中的包描述信息，管理无线承载；所述包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息、和带宽信息。
其中，所述管理无线承载包括执行如下管理操作中的一种或多种：建立无线承载、修改无线承载、删除无线承载。
其中，所述获取服务质量描述信息的步骤中：获取服务等级信息，包括：通过预定义的方式获取所述服务等级信息，或者从核心网CN获取所述服务等级信息；获取流描述信息，包括：从CN获取所述流描述信息。
其中，所述管理无线承载，包括：根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中的包描述信息建立无线承载，得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息；其中，所述数据包来自CN或UE。
其中，所述数据包来自UE时，在默认承载上接收所述UE传输的所述数据包。
其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
其中，在管理无线承载之后，所述方法还包括：通知UE所述服务质量描述信息与所述无线承载之间的映射关系。
其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或者，接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。
其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，接收来自UE的数据传输请求，根据所述 数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
其中，通过以下方式之一接收所述UE发送的数据传输请求：在信令无线承载上接收；在指定无线承载上接收；在媒体接入MAC层控制信息上接收；其中，所述指定无线承载为预定义或者在建立无线承载后确定的；其中，所述指定无线承载处于启用状态。
本发明实施例还提供了一种数据传输方法，包括：
用户设备UE接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：所述服务等级信息与所述无线承载之间的映射关系通过服务等级标记信息与无线承载标识信息的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流标识信息与所述无线承载标识信息之间的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流路由信息与无线承载标识信息之间的映射关系表示；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
其中，所述UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输，包括：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或者，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线 承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，所述方法还包括：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信息；或者，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
其中，所述UE通过以下方式之一向所述AN发送所述数据传输请求：在信令无线承载上发送；在指定无线承载上发送；以媒体接入MAC层控制信息发送；其中，所述指定无线承载为预定义的或者UE在AN发送给UE的信息中获知的；其中，所述指定无线承载处于启用状态。
其中，所述UE在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，所述方法还包括：
所述UE在默认承载上向所述AN发送数据包。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息、和带宽信息。
本发明实施例还提供了一种基于流的承载管理装置，包括：
获取模块，设置为获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
管理模块，设置为根据所述服务质量描述信息，管理无线承载；或者，根据所述服务质量描述信息、以及接收到的数据包中的包描述信息，管理无线承载；所述包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息。
其中，所述管理模块，设置为管理无线承载，包括执行如下管理操作中的一种或多种：建立无线承载、修改无线承载、删除无线承载。
其中，所述获取模块，设置为获取服务等级信息时，通过预定义的方式获取所述服务等级信息，或者从CN获取所述服务等级信息；或者设置为获取流描述信息时，从CN获取所述流描述信息。
其中，所述管理模块，设置为：
根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，
根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中的包描述信息建立无线承载，得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息；
其中，所述数据包来自CN或用户设备UE。
其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
其中，所述管理模块，还设置为通知UE所述服务质量描述信息与所述无线承载之间的映射关系。
其中，所述装置还包括：第一传输模块，设置为：接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或者，接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与 无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，所述装置还包括：第一传输模块，设置为：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。
其中，所述装置还包括，第一传输模块，设置为：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息、和带宽信息。
本发明实施例还提供了一种数据传输装置，包括：
接收模块，设置为接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
第二传输模块，设置为根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关 系：所述服务等级信息与用于上行传输的所述无线承载之间的映射关系通过服务等级标记信息与无线承载标识信息的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流标识信息与所述无线承载标识信息之间的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流路由信息与无线承载标识信息之间的映射关系表示；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
其中，所述第二传输模块，设置为：根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或者，根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，所述第二传输模块，还设置为：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信息；或者，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
其中，所述第二传输模块，还设置为：在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，在默认承载上向所述AN发送数据包。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息、和带宽信息。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述基于流的承载管理方法。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述基于流的数据传输方法。
本发明实施例提供的基于流的承载管理方法、数据传输方法及装置，基于数据流本身的特性向接入网提供服务质量描述信息，接入网基于所接收到的数据流级别的信息进行接入网的承载管理，不再以核心网和接入网强相关的承载方式进行QoS处理，核心网不需要考虑接入网所采用的技术，能很好的满足下一代通信系统中核心网和接入网去耦合设计的目标，同时，在接入网无线链路上实现不同业务流之间的灵活、动态的差异化数据传输。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
附图用来提供对本申请技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本申请的技术方案，并不构成对本申请技术方案的限制。
图1为本发明实施例LTE中以承载粒度执行QoS处理进行数据传输的结构示意图；
图2为本发明实施例3GPP定义的演进分组系统的网络结构图；
图3为本发明实施例下一代移动通信系统的网络结构图；
图4为本发明实施例基于流的承载管理方法的方法流程图；
图5为本发明实施例数据传输方法的流程图；
图6为本发明实施例一承载管理的实施流程图；
图7为本发明实施例二承载管理的实施流程图；
图8为本发明实施例三承载管理的实施流程图；
图9为本发明实施例四承载管理的实施流程图；
图10为UE发起的建立PDN连接的流程图；
图11为网络发起的建立/修改/删除数据流的流程图；
图12为UE发起的建立/修改/删除数据流的流程图；
图13为本发明实施例基于流的承载管理装置的组成结构示意图；
图14为本发明实施例数据传输装置的组成结构示意图。
详述
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
在展开对发明方案的详细阐述前，本申请先简单介绍当前3GPP定义的演进分组系统(Evolved Packet System bearer，EPS)和业界认可的下一代移动通信系统的网络结构。
如图2所示，为3GPP定义的EPS网络结构图，EPS包括接入网和核心网。其中，接入网根据所采用的无线接入技术的不同，可以是演进统一陆地无线接入网(Evolved Universal Terrestrial Radio Access Network，E-UTRAN)，或者统一陆地无线接入网(Universal Terrestrial Radio Access Network，UTRAN)，或者全球移动通信系统增强数据率演进无线接入网(GSM EDGE Radio Access Network，GERAN)。核心网包含完成不同功能的网元/实体，可以包括：归属用户服务器(Home Subscriber Server，HSS)、移动性管理实体(Mobility Management Entity，MME)、服务GPRS支持节点(Serving GPRS Support Node，SGSN)、策略计费规则功能(Policy and Charging Rule Function，PCRF)实体、S-GW、P-GW和PDN。
如图3为简化示意的下一代移动通信系统的网络结构图，下一代移动通信系统同样包括接入网和核心网。下一代移动通信系统的核心网需要支持网络功能虚拟化和软件定义网络，在图3中，将核心网按大功能分成控制面功能(Control Plane function，CP功能)和用户面功能(User Plane function，UP功能)。CP功能根据所完成的实际功能，可以包含类似演进分组系统中MME、S-GW控制面、P-GW控制面、PCRF等实体所完成的功能，且CP功 能可以在同一个网元/实体上实现，或者根据需要在超过一个网元/实体上实现。UP功能根据所完成的实际功能，可以包含类似演进分组系统中的S-GW用户面、P-GW用户面等实体所完成的功能，同样UP功能可以在同一个网元/实体上实现，或者根据需要在超过一个网元/实体上实现。如果CP功能在超过一个网元/实体上实现，则有可能这些网元/实体均与AN有接口，也可能所有这些网元/实体仅通过其中一个网元/实体实现与AN之间的唯一接口。为使得下一代移动通信系统不同的接入网以灵活可插拔的方式接入到如图3所示的统一的核心网中，图3所示的网络结构也不排除AN和CN之间会存在适配不同AN接入到统一CN的适配层，如果存在适配层，则CN和AN之间的接口将包括CN和适配层之间的接口和适配层与AN之间的接口，本发明实施例所涉及的接口均是逻辑接口，并不限定其物理接口特性。
这里的接入网(AN)是一个统称，可以是采用不同无线接入技术的接入网，比如采用LTE/eLTE技术接入网，采用WLAN相关技术的接入网，采用5G中的引入的新无线技术(New Radio，NR)的接入网等。AN包括实现相关无线接入技术功能的一个或多个网元/实体，比如eNB，再比如中央单元(Central Unit，CU)，远端单元(Remote Unit，RU)，再比如适配单元等。其中相关无线接入技术功能，以LTE或eLTE为例，包括无线资源控制(Radio Resource Control，RRC)功能，分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)功能、无线链路控制(Radio Link Control，RLC)功能、媒体接入(Media Access Contrl，MAC)功能，物理层(Physical，PHY)功能等，这些功能在eNB中实现，而eNB在实际物理实现时还可以分为基带处理单元(BaseBand Unit，BBU)和远端射频单元(Remote Radio Unit，RRU)等。而在NR中，无线接入技术功能可能包括RRC、PDCP、RLC、MAC、PHY中部分或全部功能，甚至还包括新设计的功能，这些功能在同一个网元/实体eNB中实现，或者分布在CU和RU中实现，或者分布在CU、RU和适配单元上实现，分布方式可以根据不同的场景，不同的需求灵活配置。
基于图3所示的下一代移动通信系统的网络结构图，本发明实施例提出一种基于流的无线承载管理方法，如图4为本发明实施例基于流的承载管理方法的方法流程图，包括：
步骤401.AN侧网元根据服务质量描述信息或者根据服务质量描述信息以及接收到的数据包中的包描述信息进行无线承载(RB)管理；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
这里，所述AN侧网元即为上文提到的实现相关无线接入技术功能的一个、两个或多个网元/实体。例如，可以是eNB、CU、RU、适配单元等中的一个或两个或多个。
其中，服务等级信息包括服务等级标记信息，以及如下信息中的至少一个优先级、数据包延时、数据包丢包率、最大数据速率。实际应用中，服务等级信息可以是以不同的服务等级标记信息标识的，服务等级信息可以以信息列表的形式存在，该信息列表以服务等级标记信息标识，并且可以包括不限于优先级、数据包延时、数据包丢包率、最大数据速率中的至少一个。例如，所述服务等级标记信息可以是差分服务代码点(Differentiated Services Code Point，DSCP)信息，也可以是QoS分类标识信息，也可以是表征服务等级的其他编码信息。
其中，流描述信息至少包括流标识信息、流路由信息、和带宽信息；还可以包括分配与抢占优先级(Allocation and Retention Priority，ARP)信息。这里，所述流路由信息至少包括源IP地址/IP网络前缀，目标IP地址/IP网络前缀，源端口号，目标端口号IP的上层协议的协议标识等。所述流描述信息是以不同的流标识信息标识的，流描述信息可以以信息列表的形式存在，该信息列表以流标识信息标识，至少包括流路由信息和带宽信息，还可以包括ARP信息。
其中，包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息；
其中，步骤401中的无线承载管理包括无线承载建立、修改、删除等。
其中，服务等级信息是预定义的或者是从CN获取到的。流描述信息是从CN获取到的，故上述方法还可以包括步骤400(a)和400(b)中的一个或两个：400(a)、AN侧网元从核心网(CN)获取服务等级信息；400(b)、AN侧网元从CN获取流描述信息。
如图4所示，对于无线承载可用于上行传输的情况下，本发明实施例的方法还可以包括：步骤402、AN侧网元通知UE服务质量描述信息与无线承载之间的映射关系。其中，所述通知的映射关系中的无线承载至少包括可用于上行传输的无线承载。
本发明实施例中，下行传输是指数据由CN传输给AN，再由AN传输给UE的情况；上行传输是指数据由UE传输给AN，再由AN传输给CN的情况。
其中，所述服务等级信息用服务等级标记信息标识，所述流描述信息用流标识信息标识且包含流路由信息，所述无线承载用无线承载标识信息标识，则AN侧网元可以通过服务等级标记信息与无线承载标识信息的映射关系通知UE所述服务等级信息与无线承载之间的映射关系；AN侧网元可以通过流标识信息与无线承载标识信息之间的映射关系通知UE所述流描述信息与无线承载之间的映射关系，流标识信息与无线承载标识信息之间的映射关系中包括每个流标识信息所标识的流的流路由信息。或者对于流描述信息的情况，AN侧网元还可以通过流路由信息与无线承载标识信息之间的映射关系通知UE所述流描述信息与无线承载之间的映射关系。也就是说，AN侧网元可以通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：AN侧网元可以通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；AN侧网元可以通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；AN侧网元可以通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系。
其中，所述管理无线承载，包括：根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，所述管理无线承载，包括：根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中的包描述信息建立无线承载， 得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息。这里，所述数据包来自CN或UE。其中，所述数据包来自UE时，在默认承载上接收所述UE传输的所述数据包。
其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或，接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。这里，UE发出数据传输请求时可以根据来自上层协议层的数据包中的包描述信息确定其中的无线承载标识信息，这里的上层协议层指UE内负责处理和发送所述数据传输请求的协议层(比如接入层协议)之上的协议层，比如应用层。其中，在所述管理无线承载之后，所述方法还包括：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
其中，通过以下方式之一接收所述UE发送的数据传输请求：1)在信令 无线承载上接收；2)在指定无线承载上接收；3)在媒体接入MAC层控制信息上接收；其中，所述指定无线承载为预定义或者在建立无线承载后确定的；其中，所述指定无线承载处于启用状态。
如图5所示，本发明实施例还提供了一种数据传输方法，包括：
步骤501：UE接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
步骤502：UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
其中，所述UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输，可以包括：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，所述方法还包括：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信息；或，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
其中，所述UE通过以下方式之一向所述AN发送所述数据传输请求：1)在信令无线承载上发送；2)在指定无线承载上发送；3)以媒体接入MAC层控制信息发送；其中，所述指定无线承载为预定义的或者UE在AN发送给UE的信息中获知的；其中，所述指定无线承载处于启用状态。
其中，所述UE在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，所述方法还包括：所述UE在默认承载上向所述AN发送数据包。
以下就AN侧网元进行无线承载管理所依据的不同信息，针对不同的应用场景详细说明本发明实施例方法的实现过程。
实施例一
实施例一详细说明AN侧网元根据服务等级信息进行RB管理的方法，实施例一的方法适用于没有特定比特速率要求的业务或数据流的传输。如图6为实施例一承载管理的实施流程图，包括：
步骤601、建立PDN连接，或者建立数据流；
本步骤在UE和PDN之间建立PDN连接，或者在建立PDN连接的过程中同时在该PDN连接上建立数据流，或者在建立PDN连接之后在该PDN连接上建立数据流。
本步骤中，在一实施方式中，在建立PDN连接的过程中或者在建立数据流的过程中，CN通知AN服务等级信息。
服务等级信息包括服务等级标记信息，还包括但不限于优先级、数据包延时、数据包丢包率、最大数据速率中的至少一个。服务等级信息可以是以不同的服务等级标记信息标识的，服务等级信息可以以信息列表的形式存在，该信息列表以服务等级标记信息标识，并且可以包括不限于优先级、数据包延时、数据包丢包率，最大数据速率中的至少一个。如下表1，为一种可能的服务等级信息列表示例，表1中的服务等级标记信息为DSCP，但并不限定服务等级标记信息可以是其他表征服务等级的不同于DSCP的命名和编码的信息，比如QoS分类标识信息。本发明实施例并不限定服务等级信息或服务等级信息列表的其他存在形式。
Figure PCTCN2017073162-appb-000001
Figure PCTCN2017073162-appb-000002
表1
步骤602、AN根据服务等级信息建立RB；
这里，所述服务等级信息是在协议中预定义的，或者是在601中CN通知给AN的(也即AN从CN获取的)。以表1所示的服务等级信息列表为例，AN根据表1，AN同时根据负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素建立RB。比如本实施例中，AN建立了3个RB，假设为RB3、RB4和RB5，其中DSCP为101110、011010、101010、101100的服务等级映射到RB3上，DSCP为100010的服务等级映射到RB4上，DSCP为010010、000000、001010的服务等级映射到RB5上，当然这只是本实施例的一种实施方式而已，并不限定AN根据服务等级信息建立的RB的数量及将哪些取值的DSCP映射到哪些RB上。
本实施例中，如果建立了可用于上行传输的RB的情况下，本步骤还包括，AN侧网元通知UE服务等级信息与可用于上行传输的RB之间的映射关系。本实施例中假设RB3和RB4可用于上行传输，则AN侧网元通过服务等级标记信息(比如DSCP)与无线承载标识信息(比如假设RB3，RB4，RB5的无线承载标识信息分别为3,4,5)之间的映射关系表示服务等级信息与可用于上行传输的RB之间的映射关系，并通知给UE。本实施例中，将取值为101110、011010、101010、101100的DSCP映射到取值为3的无线承载标识，取值为100010的DSCP映射到取值为4的无线承载标识。本实施例中以及后 续的相关实施例中，并不限定AN通知UE服务等级信息与可用于下行传输的RB之间的映射关系。
本步骤之后，对于下行传输，AN接收来自CN的下行数据包，根据数据包中的服务等级标记信息确定将数据包对应到哪个RB上传输，这里，服务等级标记信息和601中的服务等级标记信息对应，比如本实施例中601中的服务等级标记信息为DSCP，则本步骤中也为DSCP，服务等级标记信息可以包含在数据包的包头中，比如包含在IP数据包的包头中。如果服务等级标识信息为其他编码信息，比如为QoS分类标识信息，则本步骤中数据包中的服务等级标记信息也为QoS分类标识信息。本实施例中，例如，AN接收到了来自CN的数据包，数据包包头中的DSCP为101110或011010或010010，则AN将DSCP为101110或011010的数据包对应到RB3上传输，将DSCP为010010的数据包对应到RB5上传输。
同样的，对于上行传输，UE根据数据包中的服务等级标记信息以及AN通知的服务等级信息与可用于上行传输的RB之间的映射关系确定将数据包对应到哪个RB上传输。
或者本实施例中，根据服务等级信息建立RB后，所有RB处于非开启状态，或者只有其中一个可用于上行传输的特定RB处于开启状态，其他RB处于非开启状态。这里的特定RB可以是预定义的RB或者AN在建立RB后确定的，对于AN在建立RB后确定一个特定RB处于开启状态的情况，AN在通知UE服务等级信息与可用于上行传输的RB之间的映射关系的同时，还通知UE哪个RB为特定RB，比如本实施例中为RB4。则根据此方法，实施例一还包括：
603、AN接收数据包，根据数据包中的服务等级标记信息启用相关RB；或者AN接收来自UE的数据传输请求，根据数据传输请求中的RB信息启用相关RB。
对于下行传输，AN接收来自CN的下行数据包，根据数据包中的服务等级标记信息启用相关RB。本实施例中，例如，AN接收到了来自CN的数据包，数据包包头中的DSCP为101110或011010或010010，则AN启用这些DSCP所映射的RB3、RB5。
本发明实施例中，所谓启用RB，其含义为进行RB相关变量的初始化操作。相关RB被启用后，AN所接收到的数据经过这些RB的相关协议实体的处理后，通过空中接口发送给UE。
本实施例中，AN启用相关RB，AN还通过空中接口通知UE启用相应RB，同样的，UE从空中接口接收到数据后，在相应RB的相关协议实体进行处理。这里RB的相关协议实体包括PDCP实体、RLC实体、MAC实体中的至少一个。
对于上行传输，UE判断有需要在未开启的RB上传输上行数据时，UE通过信令RB(相关技术中定义，本文中不再赘述)或者步骤602中所述的特定RB，或者MAC层控制信息，向AN发送数据传输请求，数据传输请求中包含请求启用的RB信息，AN根据RB信息启用相关RB，其中RB信息可以为无线承载标识信息。
本实施例中，UE根据服务等级信息与可用于上行传输的RB之间的映射关系判断有需要在未开启的RB上传输的上行数据，例如，UE收到来自应用层的数据包，数据包包头中的DSCP为101110，则UE根据步骤602所收到的服务等级标记信息与无线承载标识信息之间的映射关系，确定需要在RB3上传输所述数据包，则UE向AN发送的数据传输请求中包含RB3的标识信息。
实施例一以上步骤中说明的是RB管理中的RB建立过程，AN根据以下至少之一删除已经建立的部分或全部RB：
UE和PDN之间的PDN连接被删除；
PDN连接上的部分或所有数据流被删除；
AN根据负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素决定删除已经建立的部分或全部RB；
相应的，AN通知UE删除所述部分或全部RB。
AN根据以下至少之一修改已经建立的部分或全部RB：
AN从CN获取的服务等级信息改变；
AN根据负荷、资源使用情况、无线通信链路上的信号质量、AN的管理 策略中的一个或多个因素修改已经建立的部分或全部RB；
相应的，AN通知UE修改所述部分或全部RB。
这里，修改RB指以下至少之一：
修改RB的相关协议实体的配置参数；
修改服务等级信息与无线承载之间的映射关系；
RB相关的协议实体的配置参数，在3GPP相关协议标准36.331中已经有描述，本文不再赘述。
实施例二
实施例二详细说明AN侧网元根据服务等级信息以及数据包中的包描述信息进行RB管理的方法，这里的包描述信息为服务等级标记信息，实际实现时，包描述信息可以包含在数据包的包头中。实施例二的方法适用于没有特定比特速率要求的业务或数据流的传输。如图7为实施例二承载管理的实施流程图，包括：
步骤701、建立PDN连接，或者建立数据流；
这里，实现过程与实施例一步骤601相同，不再赘述。
步骤702、AN接收数据包，根据服务等级信息和数据包中的服务等级标记信息建立RB。
本实施例中的服务等级信息同样可以是在协议中预定义的，或者是在701中CN通知给AN的，同样以表1所示的服务等级信息列表为例。
对于下行传输，AN接收来自CN的数据包，根据数据包中的服务等级标记信息和服务等级信息建立RB。例如，AN接收到了来自CN的数据包，数据包包头中的DSCP为101110或011010或010010，AN建立2个RB，分别是RB3和RB4，将DSCP为101110或011010的数据包对应到RB3上传输，将DSCP为010010的数据包对应到RB5上传输。本步骤中，AN建立RB时还可以考虑负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素。
对于上行传输，本实施例在步骤702之前还包括步骤702-1，AN至少建 立一个默认承载RBx，当UE有上行传输时，UE在RBx上传输所述至少一个数据包，AN接收到所述数据包后，根据所述数据包中的服务等级标记信息和服务等级信息建立RB，当然在此过程中还可以综合考虑负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素。例如，UE收到来自应用层的数据包，所述数据包包头中的DSCP为101110，UE在RBx上传输所述DSCP为101110的至少一个数据包，AN接收到数据包后，根据该数据包的DSCP和步骤701中所述的服务等级信息建立RB3，并通知UE服务等级信息与RB3的映射关系，UE收到后，将DSCP为101110的数据包对应在RB3上传输。
需要说明的是，本实施例以上所述UE有上行传输，如果对于除了RBx之外已经建立有其他可用于上行传输的RB的情况，UE根据所述数据包中的服务等级标记信息以及AN通知的服务等级信息与已经建立的可用于上行传输的RB之间的映射关系，确定所述数据包没有映射到所述已经建立的RB中的任意一个时，所述UE才在RBx上传输所述至少一个数据包。
以上步骤中说明的是RB管理中的RB建立过程，AN根据以下至少之一删除已经建立的部分或全部RB：
UE和PDN之间的PDN连接被删除；
PDN连接上的部分或所有数据流被删除；
AN根据负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素决定删除已经建立的部分或全部RB；
RB上一段时间T内没有数据传输；
相应的，AN通知UE删除所述部分或全部RB。
AN根据以下至少之一修改已经建立的部分或全部RB：
AN从CN获取的服务等级信息改变；
AN根据负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素修改已经建立的部分或全部RB；
RB上一段时间T内没有数据传输；
相应的，AN通知UE修改所述部分或全部RB。
实施例三
本实施例详细说明AN根据流描述信息进行RB管理或者根据流描述信息和服务等级信息进行RB管理的方法，本实施例的方法既适用于没有特定比特速率要求的业务或数据流的传输，也适用于有特定比特速率要求的业务或数据流的传输。如图8为本实施例承载管理的实施流程图，包括：
步骤801、建立数据流；
可以是建立PDN连接的过程中同时在该PDN连接上建立数据流，或者在建立PDN连接之后，在该PDN连接上建立数据流。
本步骤中，建立数据流过程中，CN通知AN数据流的流描述信息，所述流描述信息至少包括流标识信息、流路由信息、和带宽信息；所述流描述信息还可以包括ARP信息。
所述流描述信息是以不同的流标识信息标识的，流描述信息可以以信息列表的形式存在，该信息列表以流标识信息标识，至少包括流路由信息和带宽信息，还可以包括ARP信息。
CN还可以通知AN服务等级信息，实现过程与实施例一相同，不再赘述。
步骤802、AN根据所述流描述信息建立RB，或者根据所述流描述信息和服务等级信息建立RB。
本实施例中的服务等级信息同样可以是在协议中预定义的，或者是在步骤801中CN通知给AN的，同样以表1所示的服务等级信息列表为例。
本实施例中，假设建立了4个数据流：
数据流1：流标识信息1，流路由信息1，带宽信息1(取值为X)，ARP1；
数据流2：流标识信息2，流路由信息2，带宽信息2(取值为Y)，ARP2；
数据流3：流标识信息3，流路由信息3，带宽信息3(取值为X)，ARP3；
数据流4：流标识信息4，流路由信息4，带宽信息4(取值为Y)，ARP4；
假设，AN根据所述流描述信息建立了2个RB，分别为RB6和RB7，AN将数据流1和数据流3映射到RB6上，将数据流2和数据流4映射到RB7上。这里，AN将具有相同或者相近带宽的数据流映射到同一个RB上，仅仅 是一种实施例而已，并不限定AN综合根据流描述信息中的其他信息，以及可以综合考虑流描述信息、服务等级信息、负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素建立RB，并将数据流映射到不同的RB上。
本实施例在建立RB6和RB7的同时，还可以根据服务等级信息列表建立一个或多个其他RB，比如建立如实施例一中所述的RB3～RB5，也类似的将DSCP为101110、011010、101010、101100的服务等级映射到RB3上，DSCP为100010的服务等级映射到RB4上，DSCP为010010、000000、001010的服务等级映射到RB5上。
同样的，本实施例中，如果建立了可用于上行传输的RB的情况下，本步骤还包括，AN通知UE所述流描述信息与无线承载之间的映射关系，或者仅根据服务等级信息建立的可用于上行传输RB的情况下，还通知UE所述服务等级信息与无线承载之间的映射关系。通知时，所述流描述信息可以用流标识信息标识，比如本实施例中以上建立RB6～RB7(可用于上行传输)时，AN将数据流1和数据流3映射到RB6、将数据流2和数据流标4映射到RB7，实际实现时，AN可以建立流标识信息1&流标识信息3到RB6的映射关系、以及流标识信息2&流标识信息4到RB7的映射关系并通知UE流标识信息与无线承载(用无线承载标识信息标识)之间的映射关系。或者，AN可以建立流路由信息与RB的映射关系并通知UE流路由信息与无线承载(用无线承载标识信息标识)之间的映射关系。服务等级信息与无线承载之间的映射关系的通知方式同实施例一相同，不再赘述。
本步骤之后，对于下行传输，AN接收来自CN的数据包，根据所述数据包中流路由信息或服务等级标记确定所述数据包对应哪个RB上传输，根据所述服务等级标记确定的情况应用于RB3～RB5，上行和下行的实现过程如实施例一的说明，不再赘述。本实施例后续仅说明根据所述流路由信息确定的情况(包括上行和下行)。每个数据流都有区别于其他数据流的流路由信息，根据数据包中的流路由信息可以确定数据包来自于哪个数据流。例如，AN接收到的数据包中，包头中包含的流路由信息为流路由信息1和流路由信息3，则AN将数据流1和数据流3对应到RB6上传输，实际实现时，AN可以根 据数据包中的流路由信息和步骤801中获得的流描述信息确定流标识信息，再根据流标识信息确定对应的RB，或者AN可以根据数据包中的流路由信息和步骤801中获得的流描述信息直接确定对应的RB。同样的，对于上行传输，UE根据数据包中的流路由信息以及AN通知的流描述信息与无线承载之间的映射关系确定将数据包对应到哪个RB上传输，实际实现时，UE可以根据数据包中的流路由信息和AN通知的流描述信息与无线承载之间的映射关系确定流标识信息，再根据流标识信息确定对应的RB，或者UE可以根据数据包中的流路由信息和AN通知的流描述信息与无线承载之间的映射关系直接确定对应的RB，其中流描述信息与无线承载之间的映射关系中包含每个流的流路由信息。
本实施例中，建立RB后，所有RB处于非开启状态，或者只有其中一个可用于上行传输的特定RB处于开启状态，其他RB处于非开启状态。此情况下本实施例还可以包括：
步骤803、AN接收数据包，根据数据包中流路由信息或服务等级标记启用相关RB；或者接收来自UE的数据传输请求，根据所述数据传输请求中的信息启用相关RB。
根据服务等级标记启用相关RB的方法同实施例一，这里不再举例描述。以下仅以针对根据流路由信息启用相关RB的实现过程进行说明。
对于下行传输，AN接收来自CN的下行数据包，根据数据包中流路由信息启用相关RB，例如，AN接收到的数据包中，包头中包含的流路由信息为流路由信息1和流路由信息3，则AN启用数据流1和数据流3所映射的RB6。同实施例一，AN启用RB6，AN还通过空中接口通知UE启用RB6。
对于上行传输，同实施例一，UE判断有需要在未开启的RB上传输上行数据，这里，UE根据数据包中的流路由信息和从AN收到的流描述信息与无线承载之间的映射关系，确定需要在未开启的RB上传输上行数据，则向AN发送数据传输请求，所述数据传输请求中包含请求启用的RB信息，AN根据RB信息启用相关RB。
本实施例中，AN删除RB和修改RB的行为同实施例二，不再赘述。
实施例四
本实施例详细说明AN根据服务质量描述信息、以及数据包中的包描述信息进行RB管理的方法，这里的包描述信息包括如下信息中的至少一个：流路由信息、服务等级标记信息，同样实际实现时包描述信息可以包含在数据包包头中。实施例四的方法既适用于没有特定比特速率要求的业务或数据流的传输，也适用于有特定比特速率要求的业务或数据流的传输。如图9为本实施例承载管理的实施流程图，包括：
步骤901、建立数据流；
这里，步骤901的实际实现过程同实施例三的相关说明，不再赘述。
步骤902、AN接收数据包，根据流描述信息和所述数据包中的流路由信息建立RB；或者根据所述流描述信息、服务等级信息和数据包中的流描述信息建立RB；或者根据服务等级信息和数据包中的服务等级标记信息建立RB。
本实施例中根据服务等级信息和数据包中的服务等级标记信息建立RB的方法同实施例二的描述，本实施例不再赘述，本实施例仅举例说明上述其他两种情况，这里同实施例三所示建立了4个数据流。
对于下行传输，AN接收来自CN的数据包，所述数据包包头中包含的流路由信息为流路由信息1和流路由信息3，则AN根据步骤901中收到的流描述信息，还可以综合考虑服务等级信息、负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素建立RB6，将流路由信息为流路由信息1和流路由信息3的数据包对应到RB6上传输。
对于上行传输，类似实施例二，本实施例在步骤902之前还包括步骤902-1：AN至少建立一个默认承载RBx，当UE有上行传输时，UE在RBx上传输至少一个上行数据包，AN接收到所述上行数据包后，根据所述数据包中的流路由信息和步骤901中收到的流描述信息建立RB，当然在此过程中还可以综合考虑服务等级信息、负荷、资源使用情况、无线通信链路上的信号质量、AN的管理策略中的一个或多个因素。例如，UE收到来自应用层的数据包，数据包包头中的流路由信息为流路由信息2，UE在RBx上传输所述流路由信息为流路由信息2的至少一个数据包，AN接收到所述至少一个数据包 后，建立RB7，并通知UE流描述信息(数据流2)与RB7的映射关系，UE收到后，将流路由信息为流路由信息2的数据包对应在RB7上传输。
本实施例中，AN删除RB和修改RB的行为同实施例二，不再赘述。
采用本发明上述实施例所述的方法，不再以核心网和接入网强相关的承载方式进行QoS处理，核心网不需要考虑接入网所采用的技术，基于数据流本身的特性向接入网提供服务质量描述信息，接入网基于所接收到的数据流级别的信息进行接入网的承载管理，能很好的满足下一代通信系统中核心网和接入网去耦合设计的目标，同时在接入网无线链路上实现不同业务流之间的灵活、动态的差异化数据传输。
以下基于图3所示的下一代移动通信系统网络架构，就本发明上述实施例中涉及的建立PDN连接、建立/删除/修改数据流的流程进行举例说明，需要说明的是以下仅仅是本发明实施例的流程示例而已，本发明实施例并不限于其他可能的变化流程。
如图10为UE发起的建立PDN连接的流程图，包括：
步骤1001、UE发起建立PDN连接请求；
本过程可以是单独的PDN连接建立请求，也可以是在PDN连接建立请求中同时请求建立数据流；
其中，所述PDN连接请求中包含UE标识，对于需要建立数据流的情况，所述PDN连接请求还可以包括数据流建立请求描述信息。所述数据流建立请求描述信息至少包括流标识信息和流路由信息，还可以包括请求的带宽信息。
步骤1002、实现CP功能的核心网网元/实体(为描述方便，以下将实现CP功能的核心网网元/实体称为CP功能实体，但并不限定其存在形式，比如可以是一个或者多个核心网网元/实体)收到了所述PDN连接请求后，如果PDN连接请求中同时请求建立数据流，则可以去实现应用功能(Application Funciton，AF)的网元/实体获取或者验证所述请求建立的数据流的“数据流建立请求描述信息”，比如验证其中请求的带宽信息。
步骤1003、CP功能实体还可以去用户数据库获取UE的签约信息，如果在该过程中CP功能实体已经获取了或者从其他功能实体中获取了这一信息， 本步骤可以不执行。
步骤1004、CP功能实体生成服务质量描述信息。
其中，所述服务质量描述信息即为本发明上文实施例中提到的对应信息。
本步骤为可选步骤，如果服务等级信息为预定义的信息，并且本过程中未建立数据流，则本步骤不需要执行。
步骤1005、CP功能实体将生成的服务质量描述信息下发给实现UP功能的核心网网元/实体(同样为描述方便，以下将实现UP功能的核心网网元/实体称为UP功能实体，但并不限定其存在形式，比如可以是一个或者多个核心网网元/实体)，以供UP功能实体使用。
本步骤为可选步骤，如果服务等级信息为预定义的信息，并且本过程中未建立数据流，则本步骤不需要执行。
步骤1006、CP功能实体将生成的服务质量描述信息下发给AN。
对于PDN连接建立过程中同时建立数据流的情况，本步骤中CP功能实体下发给AN的流描述信息包括CP功能实体成功建立的数据流的流描述信息。如果服务等级信息为预定义的信息，本步骤中CP功能实体下发给AN的信息中不需要包含服务等级信息。
AN接收到所述服务质量描述信息后，在执行本发明上文各实施例时按上文各实施例的描述使用服务质量描述信息。
步骤1007、CP功能实体向UE发送建立PDN连接接受消息。
如果步骤1001中UE发起建立PDN连接请求的同时请求建立数据流，则所述PDN连接接受消息中包含成功建立的数据流的流描述信息。
步骤1008、UE向CP功能实体发送建立PDN连接完成消息。
如图11为网络发起的建立/修改/删除数据流的流程图，网络发起的建立/修改/删除数据流的流程可以包括：
步骤1101a/1101b、可以由应用层触发在当前的PDN连接上建立新的数据流，修改(例如数据流的带宽发生改变等)或者删除已经建立的数据流。也可能由签约数据的变化或由于CP功能实体配置的运营商策略变化等触发 建立/修改/删除数据流的过程。因此步骤1101a和步骤1101b都是可选过程。
步骤1102、CP功能实体根据上述描述的触发条件，判断需要执行建立/修改/删除步骤数据流的操作，CP功能实体生成所述需要建立/修改的数据流的流描述信息。
步骤1103、CP功能实体向UP功能实体下发建立/修改/删除的数据流的信息，下发的信息中包含流描述信息；
步骤1104、CP功能实体向AN下发建立/修改/删除的数据流的信息，下发的信息中包含流描述信息；
AN接收到所述流描述信息后，在执行本发明上文各实施例时按上文各实施例的描述使用所述流描述信息。
步骤1105、AN通知UE建立/修改/删除的数据流，该通知中包含流描述信息；
步骤1106、UE通过AN向CP功能实体发送建立/修改/删除接受消息。
如图12为本发明实施例中UE发起的建立/修改/删除数据流的流程图，UE发起的建立/修改/删除数据流的流程可以包括：
步骤1201、可以由UE的应用层触发在当前的PDN连接上建立新的数据流，修改(例如数据流的带宽发生改变等)或者删除已经建立的数据流。本步骤可以由AF触发，AF通知UE的应用层，然后UE的应用层触发UE发送步骤1202的资源请求，请求本流程的后续过程。本步骤也可以由UE根据用户的操作触发，触发UE发送步骤1202的资源请求，请求本流程的后续过程。
步骤1202、UE发送资源请求，请求中包含需要建立/修改/删除的数据流的数据流建立/修改/删除请求描述信息，数据流建立/修改/删除请求描述信息至少包括流标识信息和流路由信息，还可以包括请求的带宽信息。
步骤1203、CP功能实体收到所述资源请求后，可以去AF获取或者验证所述“数据流建立/修改/删除请求描述信息”。
CP功能实体也可以综合根据已经获得的UE的签约信息获取或者验证。
后续CP功能实体判断需要执行建立/修改/删除数据流的操作，步骤1204～1208与步骤1002～1006完全相同，不再赘述。
如图13所示，本发明实施例还提供了一种基于流的承载管理装置，包括：
获取模块1301，设置为获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
管理模块1302，设置为根据所述服务质量描述信息，或者根据所述服务质量描述信息以及接收到的数据包中的包描述信息，管理无线承载；所述包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息。
其中，所述管理模块1302，设置为管理无线承载，包括执行如下管理操作中的一种或多种：建立无线承载、修改无线承载、删除无线承载。
其中，所述获取模块1301，设置为获取服务等级信息时，通过预定义的方式获取所述服务等级信息，或者从核心网CN获取所述服务等级信息；或者设置为获取流描述信息时，从CN获取所述流描述信息。
所述管理模块1302，设置为：根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中的包描述信息建立无线承载，得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息；其中，所述数据包来自CN或UE。
这里，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
其中，所述管理模块1302，还设置为：通知UE所述服务质量描述信息与所述无线承载之间的映射关系。
其中，所述装置还可包括：第一传输模块1303，设置为：接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或者，接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
或者，第一传输模块1303，设置为：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。这里，UE发出数据传输请求时可以根据来自上层协议层的数据包中的包描述信息确定其中的无线承载标识信息，这里的上层协议层指UE内负责处理和发送所述数据传输请求的协议层(比如接入层协议)之上的协议层，比如应用层。
或者，第一传输模块1303，还设置为：接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少 一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息和带宽信息。
如图14所示，本发明实施例还提供了一种数据传输装置，包括：接收模块1401，设置为接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；第二传输模块1402，设置为根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
这里，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：所述服务等级信息与用于上行传输的所述无线承载之间的映射关系通过服务等级标记信息与无线承载标识信息的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流标识信息与所述无线承载标识信息之间的映射关系表示；所述流描述信息与所述无线承载之间的映射关系通过流路由信息与无线承载标识信息之间的映射关系表示；其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
所述第二传输模块1402，设置为：根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或者，根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
其中，所述第二传输模块1402，还设置为：所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信息；或者，所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
其中，所述第二传输模块1402，还设置为：在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，在默认承载上向所述AN发送数据包。
其中，所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；所述流描述信息包括流标识信息、流路由信息和带宽信息。
本实施例提供的基于流的承载管理装置以及数据传输装置，可用于执行上述方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述基于流的承载管理方法。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述基于流的数据传输方法。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，例如通过集成电路来实现其相应功能，也可以采用软件功能模块的形式实现，例如通过处理器执行存储于存储器中的程序/指令来实现其相应功能。本发明实施例不限制于任何特定形式的硬件和软件的结合。
虽然本发明所揭露的实施方式如上，但所述的内容仅为便于理解本申请而采用的实施方式，并非用以限定本申请。任何本申请所属领域内的技术人员，在不脱离本申请所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本申请的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
本发明实施例提供的基于流的承载管理方法、数据传输方法及装置，基 于数据流本身的特性向接入网提供服务质量描述信息，接入网基于所接收到的数据流级别的信息进行接入网的承载管理，不再以核心网和接入网强相关的承载方式进行QoS处理，核心网不需要考虑接入网所采用的技术，能很好的满足下一代通信系统中核心网和接入网去耦合设计的目标，同时，在接入网无线链路上实现不同业务流之间的灵活、动态的差异化数据传输。

Claims (35)

  1. 一种基于流的承载管理方法，包括：
    获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
    根据所述服务质量描述信息，管理无线承载；或者，
    根据所述服务质量描述信息、以及接收到的数据包中的包描述信息，管理无线承载；所述包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息。
  2. 根据权利要求1所述的方法，其中，
    所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；
    所述流描述信息包括流标识信息、流路由信息、和带宽信息。
  3. 根据权利要求1所述的方法，其中，所述管理无线承载包括执行如下管理操作中的一种或多种：建立无线承载、修改无线承载、删除无线承载。
  4. 根据权利要求1所述的方法，其中，所述获取服务质量描述信息的步骤中：
    获取服务等级信息，包括：通过预定义的方式获取所述服务等级信息，或者从核心网CN获取所述服务等级信息；
    获取流描述信息，包括：从CN获取所述流描述信息。
  5. 根据权利要求1所述的方法，其中，所述管理无线承载，包括：
    根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，
    根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中 的包描述信息建立无线承载，得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息；
    其中，所述数据包来自核心网CN或用户设备UE。
  6. 根据权利要求5所述的方法，其中，所述数据包来自UE时，在默认承载上接收所述UE传输的所述数据包。
  7. 根据权利要求5所述的方法，其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：
    通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；
    通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；
    通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；
    其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
  8. 根据权利要求1至7任一项所述的方法，其中，在管理无线承载之后，所述方法还包括：通知UE所述服务质量描述信息与所述无线承载之间的映射关系。
  9. 根据权利要求5所述的方法，其中，在所述管理无线承载之后，所述方法还包括：
    接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或者，
    接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
  10. 根据权利要求5所述的方法，其中，在所述管理无线承载之后，所述方法还包括：
    接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，
    接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。
  11. 根据权利要求5所述的方法，其中，在所述管理无线承载之后，所述方法还包括：
    接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，
    接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
  12. 根据权利要求10或11所述的方法，其中，通过以下方式之一接收所述UE发送的数据传输请求：
    在信令无线承载上接收；
    在指定无线承载上接收；
    在媒体接入MAC层控制信息上接收；
    其中，所述指定无线承载为预定义或者在建立无线承载后确定的；
    其中，所述指定无线承载处于启用状态。
  13. 一种数据传输方法，包括：
    用户设备UE接收来自接入网AN的服务质量描述信息与无线承载之间 的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
    UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
  14. 根据权利要求15所述的方法，其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：
    所述服务等级信息与所述无线承载之间的映射关系通过服务等级标记信息与无线承载标识信息的映射关系表示；
    所述流描述信息与所述无线承载之间的映射关系通过流标识信息与所述无线承载标识信息之间的映射关系表示；
    所述流描述信息与所述无线承载之间的映射关系通过流路由信息与无线承载标识信息之间的映射关系表示；
    其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
  15. 根据权利要求13所述的方法，其中，所述UE根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输，包括：
    所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或者，
    所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
  16. 根据权利要求13所述的方法，所述方法还包括：
    所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信 息；或者，
    所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
  17. 根据权利要求16所述的方法，其中，
    所述UE通过以下方式之一向所述AN发送所述数据传输请求：
    在信令无线承载上发送；
    在指定无线承载上发送；
    以媒体接入MAC层控制信息发送；
    其中，所述指定无线承载为预定义的或者UE在AN发送给UE的信息中获知的；
    其中，所述指定无线承载处于启用状态。
  18. 根据权利要求13所述的方法，其中，
    所述UE在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，所述方法还包括：
    所述UE在默认承载上向所述AN发送数据包。
  19. 根据权利要求13至18任一项所述的方法，其中，
    所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；
    所述流描述信息包括流标识信息、流路由信息、和带宽信息。
  20. 一种基于流的承载管理装置，包括：
    获取模块，设置为获取服务质量描述信息，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
    管理模块，设置为根据所述服务质量描述信息，管理无线承载；或者，根据所述服务质量描述信息、以及接收到的数据包中的包描述信息，管理无线承载；所述包描述信息包括如下信息中的至少一个：服务等级标记信息、流路由信息。
  21. 根据权利要求20所述的装置，其中，所述管理模块，设置为管理无线承载，包括执行如下管理操作中的一种或多种：建立无线承载、修改无线承载、删除无线承载。
  22. 根据权利要求20所述的装置，其中，所述获取模块，设置为获取服务等级信息时，通过预定义的方式获取所述服务等级信息，或者从CN获取所述服务等级信息；或者设置为获取流描述信息时，从CN获取所述流描述信息。
  23. 根据权利要求20所述的装置，其中，所述管理模块，设置为：
    根据所述服务等级信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系；或者，接收数据包，并根据所述服务等级信息和所述数据包中的包描述信息建立无线承载，得到所述服务等级信息与所述无线承载之间的映射关系，所述包描述信息为服务等级标记信息；或者，
    根据所述流描述信息建立无线承载，得到所述流描述信息与无线承载之间的映射关系；或者，接收数据包，并根据所述流描述信息和所述数据包中的包描述信息建立无线承载，得到所述流描述信息与所述无线承载之间的映射关系，所述包描述信息为流路由信息；
    其中，所述数据包来自CN或UE。
  24. 根据权利要求20所述的装置，其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：
    通过服务等级标记信息与无线承载标识信息的映射关系表示所述服务等级信息与所述无线承载之间的映射关系；
    通过流标识信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；
    通过流路由信息与无线承载标识信息之间的映射关系表示所述流描述信息与所述无线承载之间的映射关系；
    其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
  25. 根据权利要求20至24任一项所述的装置，其中，所述管理模块，还设置为：通知UE所述服务质量描述信息与所述无线承载之间的映射关系。
  26. 根据权利要求20所述的装置，其中，
    所述装置还包括：第一传输模块，设置为：
    接收来自CN的数据包，根据数据包中的包描述信息，以及所述服务等级信息与所述无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，其中，所述包描述信息为服务等级标记信息；或者，
    接收来自CN的数据包，根据数据包中的包描述信息，以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
  27. 根据权利要求20所述的装置，其中，
    所述装置还包括：第一传输模块，设置为：
    接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述服务等级信息与所述无线承载之间的映射关系，启用所述数据包中的包描述信息所对应的无线承载，所述包描述信息为服务等级标记信息；或者，
    接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述服务等级信息与所述无线承载之间的映射关系、以及数据包中的包描述信息确定的，所述包描述信息为服务等级标记信息。
  28. 根据权利要求20所述的装置，其中，
    所述装置还包括，第一传输模块，设置为：
    接收来自CN的数据包，根据所述数据包中的包描述信息、以及所述流描述信息与所述无线承载之间的映射关系，启用所述数据包中包描述信息所对应的无线承载，所述包描述信息为流路由信息；或者，
    接收来自UE的数据传输请求，根据所述数据传输请求中的无线承载标识信息，启用对应的无线承载；其中，所述数据传输请求中的无线承载标识信息是：所述UE根据所述流描述信息与所述无线承载之间的映射关系、以 及数据包中的包描述信息确定的，所述包描述信息为流路由信息。
  29. 根据权利要求20所述的装置，其中，
    所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；
    所述流描述信息包括流标识信息、流路由信息、和带宽信息。
  30. 一种数据传输装置，包括：
    接收模块，设置为接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系；其中，所述服务质量描述信息包括如下信息的一种或两种组合：服务等级信息、流描述信息；
    第二传输模块，设置为根据所述服务质量描述信息与无线承载之间的映射关系，将数据包在相应的无线承载上传输。
  31. 根据权利要求30所述的装置，其中，通过如下方式中的一种或多种表示与无线承载标识信息的映射关系：
    所述服务等级信息与用于上行传输的所述无线承载之间的映射关系通过服务等级标记信息与无线承载标识信息的映射关系表示；
    所述流描述信息与所述无线承载之间的映射关系通过流标识信息与所述无线承载标识信息之间的映射关系表示；
    所述流描述信息与所述无线承载之间的映射关系通过流路由信息与无线承载标识信息之间的映射关系表示；
    其中，所述服务等级标记信息用于标识所述服务等级信息，所述无线承载标识信息用于标识所述无线承载，所述流标识信息用于标识所述流描述信息，所述流路由信息包含在所述流描述信息中。
  32. 根据权利要求30所述的装置，其中，
    所述第二传输模块，设置为：
    根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为服务等级标记信息；或者，
    根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定所述数据包对应的无线承载，并在所述确定的无线承载上传输所述数据包，所述包描述信息为流路由信息。
  33. 根据权利要求29所述的装置，其中，所述第二传输模块，还设置为：
    所述UE根据数据包中的包描述信息以及所述服务等级信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为服务等级标记信息；或者，
    所述UE根据数据包中的包描述信息以及所述流描述信息与无线承载之间的映射关系，确定需要启用的无线承载标识信息，并向AN发送包含所述无线承载标识信息的数据传输请求，所述包描述信息为流路由信息。
  34. 根据权利要求29所述的装置，其中，所述第二传输模块，还设置为：在接收来自接入网AN的服务质量描述信息与无线承载之间的映射关系之前，在默认承载上向所述AN发送数据包。
  35. 根据权利要求29至34任一项所述的装置，其中，
    所述服务等级信息包括服务等级标记信息以及如下信息中的至少一个：优先级、数据包延时、数据包丢包率、最大数据速率；
    所述流描述信息包括流标识信息、流路由信息、和带宽信息。
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