WO2018228378A1 - 一种通信方法及接入网设备 - Google Patents

一种通信方法及接入网设备 Download PDF

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Publication number
WO2018228378A1
WO2018228378A1 PCT/CN2018/090830 CN2018090830W WO2018228378A1 WO 2018228378 A1 WO2018228378 A1 WO 2018228378A1 CN 2018090830 W CN2018090830 W CN 2018090830W WO 2018228378 A1 WO2018228378 A1 WO 2018228378A1
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Prior art keywords
access network
network device
qfi
message
qos
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PCT/CN2018/090830
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English (en)
French (fr)
Inventor
韩锋
晋英豪
李宏
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18818256.2A priority Critical patent/EP3627889B1/en
Publication of WO2018228378A1 publication Critical patent/WO2018228378A1/zh
Priority to US16/714,270 priority patent/US11240700B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • 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
    • H04W28/0257—Traffic management, e.g. flow control or congestion control per individual bearer or channel the individual bearer or channel having a maximum bit rate or a bit rate guarantee
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a communication method and an access network device.
  • the 5th-generation (5th-generation, 5G) system will support various types of network deployment and application types, including: higher-rate experience and greater bandwidth access; lower latency and highly reliable information interaction Larger, lower cost machine-type communication (MTC) device access and management.
  • MTC machine-type communication
  • the 5G system defines a QoS flow-based quality of service (QoS) framework that will support QoS flows that guarantee flow rates and QoS flows that do not guarantee flow rates.
  • QoS quality of service
  • the introduction of the reflection QoS mechanism in the 5G system is a method for the terminal device to acquire the QoS rule of the uplink data transmission.
  • the basic idea is that the terminal device derives the QoS rule for the uplink data transmission according to the downlink data packet.
  • the technical problem to be solved by the embodiments of the present application is to provide a communication method and an access network device, so as to implement QoS control.
  • an embodiment of the present application provides a communication method, including:
  • Step 1 The first access network device sends a first message to the second access network device, where the first message carries the QoS parameters corresponding to the QFI and the QFI of the separated bearer corresponding to the first access network device.
  • Step 2 The first access network device receives the second message from the second access network device, and the second message is a response to the first message.
  • an embodiment of the present application provides a communication apparatus, including: a unit or a means for performing the foregoing steps of the first aspect.
  • an embodiment of the present application provides a communication apparatus, including at least one processing element and at least one storage element, wherein at least one storage element is used to store a program and data, and at least one processing element is used to execute the first embodiment of the present application.
  • the method provided in the aspect is not limited to:
  • an embodiment of the present application provides a communication apparatus, including at least one processing element (or chip) for performing the method of the above first aspect.
  • an embodiment of the present application provides a communication method program, which is used to execute the method of the above first aspect when executed by a processor.
  • an embodiment of the present application provides a program product, such as a computer readable storage medium, including the program of the fifth aspect.
  • the primary base station implements centralized control for the GBR QoS flow, and finally satisfies the performance requirements of the GBR QoS.
  • the primary base station implements effective QoS guarantee via the GBR QoS flow part transmitted between the primary base station and the UE; for the QoS flow part transmitted between the secondary base station and the UE, the secondary base station Achieve effective QoS guarantees.
  • the auxiliary base station can perform effective radio resource management at the secondary base station based on these GBR QoS parameters, and perform the scheduling of the air interface resources, the logical channel priority scheduling of the radio link layer, etc., to further ensure the performance of the GBR QoS parameters.
  • the QFI corresponding QoS parameter corresponding to the separated bearer of the first access network device includes a GBR QoS parameter
  • the GBR QoS parameter includes the second access network device.
  • the first message further carries a mapping relationship between the bearer corresponding to the first access network device and/or the separated bearer and the QoS parameter.
  • the first message further carries the QFI to be switched, and the QoS parameter corresponding to the QFI to be switched.
  • the secondary base station is different from the primary base station according to the QFI to be switched and its corresponding QoS parameter, and can independently determine whether to establish an SCG bearer or an SCG split bearer, and can independently determine whether to establish one or more bearers;
  • the mapping relationship between the QoS flow and the SCG bearer or the SCG bearer is determined, so that the secondary base station can satisfy the QoS parameter requirement as much as possible based on its load status, QoS parameters, channel conditions, etc., and improves the final experience of the user.
  • the secondary base station can preferentially adopt the same bearer configuration and configuration relationship of the QoS flow and the bearer as the primary base station, thereby avoiding out-of-order flow, and avoiding invalid TCP congestion avoidance for the TCP-based service.
  • Mechanism to improve user throughput
  • the second message carries the QFI and QFI corresponding QoS parameters of the separated bearer corresponding to the second access network device.
  • the first access network device receives the third message from the second access network device, and the third message carries the separated bearer corresponding to the second access network device.
  • the first access network device performs data transmission according to QFI and QFI corresponding QoS parameters of the separated bearer corresponding to the second access network device.
  • the QFI corresponding QoS parameter of the second access network device corresponding to the separated bearer includes a GBR QoS parameter
  • the GBR QoS parameter includes the first access network device.
  • the secondary base station implements centralized control for the GBR QoS flow, and finally meets the performance requirements of the GBR QoS.
  • the auxiliary base station implements effective QoS guarantee via the GBR QoS flow part transmitted between the secondary base station and the UE; for the QoS flow part transmitted between the primary base station UE, the primary base station implements Effective QoS guarantee.
  • the primary base station can perform effective radio resource management at the primary base station based on the GBR QoS parameters, and perform the scheduling of the air interface resources, the logical channel priority scheduling of the radio link layer, etc., to further ensure the performance of the GBR QoS parameters.
  • the embodiment of the present application provides a communication method, including:
  • Step 1 The first access network device obtains the reflected quality of service QoS capability information of the terminal device, where the reflected QoS capability information indicates that the terminal device has or does not have a reflective QoS capability;
  • Step 2 The first access network device sends a first message to the second access network device, where the first message carries the reflected QoS capability information of the terminal device.
  • an embodiment of the present application provides a communication apparatus, including: a unit or a means for performing the foregoing steps of the seventh aspect.
  • the embodiment of the present application provides a communication apparatus, including at least one processing element and at least one storage element, wherein at least one storage element is used to store a program and data, and at least one processing element is used to execute the seventh embodiment of the present application.
  • the method provided in the aspect is not limited to.
  • an embodiment of the present application provides a communication apparatus, including at least one processing element (or chip) for performing the method of the above seventh aspect.
  • the embodiment of the present application provides a communication method program, which is used to execute the method of the above seventh aspect when executed by a processor.
  • the embodiment of the present application provides a program product, such as a computer readable storage medium, including the program of the fifth aspect.
  • the first access network device may transmit the QoS parameters corresponding to the QFI and the QFI of the separated bearer corresponding to the first access network device to the second access network device, thereby implementing the primary base station to the secondary base station. Pass QoS parameters.
  • the second access network device performs data transmission according to the QFI and QFI corresponding QoS parameters of the separated bearer corresponding to the first access network device.
  • the QFI corresponding QoS parameter corresponding to the separated bearer of the first access network device includes a GBR QoS parameter
  • the GBR QoS parameter includes the second access network.
  • the first message further carries a mapping relationship between the bearer and/or the separated bearer corresponding to the first access network and the QoS parameter;
  • the second access The network device transmits the QoS flow received from the first access network device by using a mapping relationship between the bearer or the separated bearer corresponding to the first access network and the QoS parameter.
  • the first message further carries the QFI to be switched, and the QoS parameter corresponding to the QFI to be switched; and the second access network device according to the QFI to be switched
  • the QoS parameter corresponding to the QFI to be switched establishes a mapping relationship between the bearer corresponding to the second access network device and the QoS parameter corresponding to the QFI corresponding to the QFI to be switched.
  • the second access network device sends a second message to the first access network device, where the second message is a response to the first message, and the second The message includes QoS parameters corresponding to QFI and QFI under the separated bearer corresponding to the second access network device.
  • the second access network device determines to establish a separate bearer corresponding to the second access network device
  • the second access network device sends a third message to the first access network device, where the third message includes the QoS parameters corresponding to the QFI and the QFI of the separated bearer corresponding to the second access network device.
  • the QFI corresponding QoS parameter of the second access network device corresponding to the separated bearer includes a GBR QoS parameter
  • the GBR QoS parameter includes the first access network.
  • a thirteenth aspect of the embodiments of the present application further provides a communication method, including:
  • the first access network device obtains the reflected quality of service QoS capability information of the terminal device, and the reflected QoS capability information indicates that the terminal device has or does not have the reflective QoS capability;
  • the first access network device sends a first message to the second access network device, where the first message carries the reflected QoS capability information of the terminal device.
  • the method before the first access network device sends the first message to the second access network device, the method further includes:
  • the first access network device receives the first reflected QoS information from the core network device, where the first reflected QoS information is used to indicate that the terminal device performs the reflected QoS attribute QQ and the reflected QoS attribute RQA corresponding to the QFI.
  • the first message further carries second reflected QoS information, where the first reflected QoS information is used to indicate the RQA corresponding to the QFI and the QFI.
  • the first access network device receives the first notification control information from the second access network device, where the first notification control information indicates that the second access network device corresponds to the bearer or the separated bearer.
  • the guaranteed bit rate GBR QoS parameter does not satisfy the defect QFI of the preset GBR QoS parameter, and the GBR QoS parameter corresponding to the defect QFI that does not satisfy the preset GBR QoS parameter; wherein the GBR QoS parameter includes GFBR and MFBR.
  • the first access network device switches the GBR QoS flow corresponding to the defect QFI from the bearer or split bearer corresponding to the second access network device to the bearer or separate bearer corresponding to the first access network device.
  • the first access network device sends the second notification control information to the core network device, where the second notification control information indicates the defect QFI, and the GBR QoS parameter corresponding to the defect QFI that does not satisfy the preset GBR QoS parameter.
  • a fourteenth aspect of the embodiments of the present application further provides a communication method, including:
  • the second access network device receives the first message from the first access network device, where the first message carries the reflected QoS capability information of the terminal device, and the reflected QoS capability information indicates that the terminal device has or does not have the reflective QoS capability;
  • the second access network device sends the data packet carrying the QFI to the terminal device.
  • the first message further carries the reflected QoS information, where the reflected QoS information is used to indicate that the terminal device performs the QFI of the reflected QoS and the RQA corresponding to the QFI.
  • the first access network device when the second access network device determines that the GBR QoS parameter of the bearer or the separated bearer corresponding to the second access network device does not meet the preset GBR QoS parameter, the first access network device The network access device sends the first notification control information, where the first notification control information is used to indicate the defect QFI that does not satisfy the preset GBR QoS parameter, and the GBR QoS parameter that does not satisfy the preset GBR QoS parameter corresponding to the defect QFI.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applied;
  • FIG. 2 is a schematic diagram of a scenario in which an embodiment of the present application is applied
  • FIG. 2b is another schematic diagram of a scenario to which an embodiment of the present application is applied.
  • FIG. 3 is a schematic diagram of communication of a communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of communication of another communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of communication of still another communication method according to an embodiment of the present application.
  • Figure 6 is a schematic diagram 1 of the device provided by the embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by the present application.
  • Figure 8 is a second schematic diagram of the device provided by the embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the embodiment of the present application can be applied to the network architecture diagram shown in FIG. 1.
  • the network architecture shown in FIG. 1 is a network architecture of a wireless communication system, and generally includes a terminal device, an access network device, and a core network device, and the number of each device and The form does not constitute a limitation on the embodiments of the present application.
  • the access network device may be a base station (BS), and the base station may provide communication services to multiple terminal devices, and multiple base stations may provide communication services to the same terminal device.
  • the base station includes a baseband unit (BBU) and a remote radio unit (RRU).
  • BBU baseband unit
  • RRU remote radio unit
  • the BBU and the RRU can be placed in different places, for example, the RRU is pulled away, placed in an open area from high traffic, and the BBU is placed in the central computer room. BBUs and RRUs can also be placed in the same room. The BBU and RRU can also be different parts under one rack.
  • the wireless communication system mentioned in the embodiments of the present application includes, but is not limited to, a narrow band-internet of things (NB-IoT), and a global system for mobile communications (GSM).
  • GSM global system for mobile communications
  • EDGE Enhanced data rate for GSM evolution
  • WCDMA wideband code division multiple access
  • CDMA2000 code division multiple access
  • TD-SCDMA Time division-synchronization code division multiple access
  • LTE long term evolution
  • 5th-generation, 5G fifth generation mobile communication system
  • future mobile communication system includes, but is not limited to, a narrow band-internet of things (NB-IoT), and a global system for mobile communications (GSM).
  • EDGE Enhanced data rate for GSM evolution
  • WCDMA wideband code division multiple access
  • CDMA2000 code division multiple access
  • TD-SCDMA Time division-synchronization code division multiple access
  • LTE long term evolution
  • 5G fifth generation mobile communication
  • the base station is a device deployed in a radio access network to provide a wireless communication function for the terminal device.
  • the base station may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, transmission receiver points (TRPs), and the like.
  • TRPs transmission receiver points
  • the names of devices with base station functions may vary, for example, in a 3rd-generation (3G) system, called Node B (NB).
  • NB 3rd-generation
  • eNB evolved NodeB
  • 5G 5G
  • the foregoing apparatus for providing a wireless communication function to a terminal device is collectively referred to as an access network device.
  • DC dual connectivity
  • a terminal device in dual connectivity mode has an S1-MME connection between only one base station and a mobility management entity (MME).
  • MME mobility management entity
  • a base station that provides an S1-MME connection may be referred to as a primary evolved node B (MeNB), and another base station is used to provide additional resources, which may be referred to as a secondary evolved node B (SeNB).
  • MeNB primary evolved node B
  • SeNB secondary evolved node B
  • Each base station is capable of independently managing radio resources in the terminal equipment and the respective cells. Resource coordination between the primary base station and the secondary base station is transmitted via signaling messages on the X2 interface.
  • the primary base station may be a MeNB (master eNB), or may be a MG (master gNB) or a MN (master Node B); the secondary base station may be a secondary eNB or a secondary gNB. It is SN (secondary Node B).
  • the terminal device involved in the embodiment of the present application may include various user equipments (UEs) having wireless communication functions, handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem. .
  • the terminal device may also be referred to as a mobile station (MS), a terminal, and may also include a subscriber unit, a cellular phone, a smart phone, a wireless data card, Personal digital assistant (PDA) computers, tablet computers, wireless modems, handsets, laptop computers, machine type communication (MTC) terminals, and the like.
  • MS mobile station
  • PDA Personal digital assistant
  • MTC machine type communication
  • the core network device involved in the embodiment of the present application may be a core network device in a 5G system, and may include a user plane function (UPF) device, a control plane function (CPF) device, and a device. Session management function (SMF) device, access and mobility management function (AMF) device, etc.
  • UPF user plane function
  • CPF control plane function
  • SMF Session management function
  • AMF access and mobility management function
  • 2a is a scenario of a new radio (NR)-NR dual connection, that is, two access network devices are NR base stations, and the scenario can support four bearer types, respectively, which are primary cell groups controlled by the primary base station. (master cell group, MCG) bearer, MCG split (bearer), secondary cell group (SCG) bearer controlled by the secondary base station, and SCG split bearer.
  • MCG master cell group
  • MCG split bearer
  • SCG secondary cell group
  • the MCG split bearer divides the QoS flow processed by the service data adaptation protocol (SDAP) and the packet data convergence protocol (PDCP) into two paths, and one transmits through the Xn interface.
  • SDAP service data adaptation protocol
  • PDCP packet data convergence protocol
  • the SgNB transmits to the terminal device through a radio link control (RLC) layer and a media access control (MAC) layer; and one is transmitted by the MgNB to the terminal device through the RLC layer and the MAC layer.
  • RLC radio link control
  • MAC media access control
  • the SCG split bearer divides the QoS flow processed by the PDCP into two paths, one is transmitted to the MgNB through the Xn interface, and the MNB is transmitted to the terminal device through the RLC layer and the MAC layer; one is passed by the SgNB through the RLC layer, the MAC The layer is transmitted to the terminal device.
  • 2b is a scenario of NR-LTE dual connectivity, that is, one access network device is an NR base station, and one access network device is an LTE base station.
  • the primary base station is an LTE base station and the secondary base station is an NR base station
  • the above four bearer types can be supported.
  • the primary base station is an NR base station and the secondary base station is an LTE base station
  • the other three types can be supported except that the SCG split bearer is not supported.
  • two base stations are dual-connected to the 5G core network.
  • FIG. 2a and FIG. 2b are both scenarios in which the primary base station and the secondary base station are dual-connected to the 5G core network.
  • certain QoS flows need to be transmitted via the secondary base station, and the secondary base station also needs to ensure the parameter requirements of the QoS flow.
  • Notification control is generally used to guarantee a guaranteed bit rate (GBR) QoS flow.
  • GBR guaranteed bit rate
  • the access network device When the access network device cannot meet the performance parameters of the GBR QoS flow, the access network device notifies the core network of the SMF, and further operations are performed by the core network (for example, notifying the application server to modify the coding rate, etc.).
  • Guaranteed flow bit rate for upstream and downstream GBR QoS flows, indicating the bit rate that should be guaranteed for a GBR stream.
  • MFBR Maximum bit rate
  • Session-AMBR Per session aggregate maximum bit rate for non-GBR QoS flows. It limits the bit aggregation value of all non-GBR QoS flows that can be provided by a protocol data unit (PDU) session of the terminal device.
  • PDU protocol data unit
  • Per user equipment aggregate maximum bit rate (UE-AMBR) for non-GBR QoS flows It limits the bit aggregation value of all non-GBR QoS flows that a terminal device can provide.
  • the first access network device is a base station connected to the core network device, which is a primary base station in a dual connectivity scenario
  • the second access network device is a secondary base station in a dual connectivity scenario. No connection is established with the core network device.
  • the embodiment of the present application further provides a communication method and an access network device, so as to implement QoS control in a 5G system, and further implement QoS information transmission between a primary base station and a secondary base station.
  • FIG. 3 is a schematic diagram of communication of a communication method according to an embodiment of the present disclosure.
  • the method is introduced from the perspective of interaction between a first access network device and a second access network device, and the method may include but not Limited to the following steps:
  • Step S301 The first access network device sends a first message to the second access network device.
  • the second access network device receives the first message from the first access network device.
  • the first message carries the QFI of the separated bearer corresponding to the first access network device and the QoS parameter corresponding to the QFI, that is, the QFI under the MCGsplit bearer and the QoS parameter corresponding to the QFI.
  • the QoS parameter may be a QoS flow parameter. All embodiments of the present application will be described by taking a QoS flow parameter as an example.
  • the first message When the first access network device corresponds to multiple separated bearers, the first message further carries the QFIs of the multiple separated bearers corresponding to the first access network device and the QoS parameters corresponding to the QFI.
  • the first message further includes other content, as shown in Table 1:
  • Non-standardised QoS Flow descriptor O GBR QoS Flow Information O
  • the GBR QoS Flow Information includes a GFBR (SN GFBR) to be satisfied by the second access network device and an MFBR (SN MFBR) to be satisfied by the second access network device, and the SN GFBR includes an uplink SN GFBR and a downlink SN.
  • GFBR, SN MFBR includes uplink SN MFBR and downlink SN MFBR, see Table 3:
  • the SN GFBR and the SN MFBR may be defined by the first access network device, or may be negotiated and determined by the first access network device and the second access network device.
  • the primary base station sends the first SN GFBR and the first SN MFBR to the secondary base station, and the secondary base station considers that the two values are inappropriate, and may update, and send the updated second SN GFBR and the second SN MFBR to the primary base station, so that Increase the initiative of the secondary base station. Improve the flexibility of the system.
  • Step S302 The second access network device performs data transmission according to the QFI under the separated bearer corresponding to the first access network device and the QoS parameter corresponding to the QFI.
  • the second access network device may determine a priority of the QFI according to the QFI under the separated bearer corresponding to the first access network device and the QoS flow parameter corresponding to the QFI, and perform media according to the priority order. Processing such as media access control (MAC) scheduling, resource allocation, etc., and then transmitting the processed data.
  • MAC media access control
  • Step S303 The second access network device sends a second message to the first access network device.
  • the first access network device receives the second message from the second access network device.
  • the second message includes a QFI under the separated bearer corresponding to the second access network device and a QoS parameter corresponding to the QFI.
  • the first access network device receives the QFI under the separated bearer corresponding to the second access network device of the second access network device, and the QoS parameter corresponding to the QFI.
  • the second message is for responding to the first message.
  • the first message When the first access network device corresponds to multiple separated bearers, the first message further carries the QFIs of the multiple separated bearers corresponding to the first access network device and the QoS parameters corresponding to the QFI.
  • the second message further includes other content, as shown in Table 4-1:
  • QoS flows parameters can be seen in Table 2.
  • the QoS parameters of the QFI and the QFI corresponding to the second access network device are similar to the QFIs of the separate bearers corresponding to the first access network device and the QoS parameters corresponding to the QFI.
  • the difference is that the GBR QoS parameters of the second access network device corresponding to the separated bearer include the GFBR (MN GFBR) of the first access network device and the MFBR (MN MFBR) of the first access network device.
  • MN GFBR GFBR
  • MN MFBR MFBR
  • the first access network device performs data transmission according to the QFI of the separated bearer corresponding to the second access network device and the QoS parameter corresponding to the QFI, and the second access network device according to the first
  • the QFI under the split bearer corresponding to the access network device and the QoS parameter corresponding to the QFI are similar for data transmission.
  • the first message may carry the QFI of the separated bearer corresponding to the second access network device and the QoS parameter corresponding to the QFI, or may not carry the corresponding corresponding to the second access network device.
  • the QFI under the bearer and the QoS parameters corresponding to the QFI are separated.
  • the first message may be an SGNB Addition Request or an SGNB Modification Request
  • the second message may be an SGNB Addition Acknowledge or an SGNB Modification Acknowledge.
  • the primary base station can transmit the QoS parameters of the MCG bearer to the secondary base station, so that the secondary base station performs data transmission according to the QoS parameters of the MCG bearer.
  • the first message further carries a mapping relationship between the bearer and/or the separated bearer corresponding to the first access network device and the QoS parameter.
  • the second access network device transmits the QoS flow received from the first access network device by referring to a mapping relationship between the bearer and/or the separated bearer corresponding to the first access network and the QoS parameter, to avoid The QoS flow out of order occurs when the QoS flow under the first access network device is not completed.
  • the first message further carries a QFI to be switched, and a QoS parameter corresponding to the QFI to be switched.
  • the QFI to be switched may be a QFI of the QoS flow that the first access network device is to switch to the second access network device.
  • the second access network device may establish, according to the QFI to be switched and the QoS parameter corresponding to the QFI to be switched, a bearer corresponding to the second access network device, and the second connection
  • the mapping relationship between the bearer corresponding to the networked device and the QoS parameter corresponding to the QFI to be switched avoids interruption of data transmission.
  • the first message carries the The QFI of the handover, the QoS parameter corresponding to the QFI to be switched, and the mapping relationship between the bearer or the separated bearer corresponding to the first access network device and the QoS parameter.
  • the embodiment shown in FIG. 3 also includes the dashed portion shown in FIG.
  • FIG. 4 is a schematic diagram of communication of another communication method according to an embodiment of the present disclosure.
  • the method is introduced from the perspective of interaction between a first access network device and a second access network device, and the method may include Not limited to the following steps:
  • Step S401 The second access network device determines to establish a separate bearer corresponding to the second access network device.
  • the second access network device autonomously determines to establish a separate bearer corresponding to the second access network device.
  • the second access network device autonomously determines to establish a bearer corresponding to the second access network device.
  • Step S402 The second access network device sends a first message to the first access network device.
  • the first access network device receives the first message from the second access network device.
  • the first message carries the QFI under the separated bearer corresponding to the second access network device and the QoS parameter corresponding to the QFI.
  • the first access network device performs data transmission according to the QFI of the separated bearer corresponding to the second access network device and the QoS parameter corresponding to the QFI, which may be referred to in the embodiment shown in FIG. description.
  • Step S403 The first access network device sends a second message to the second access network device.
  • the second access network device receives the second message from the first access network device.
  • the second message is used to respond to the first message.
  • the first message may be specifically SGLBModificationRequire
  • the second message may be specifically SSGNBModificationConfirm.
  • the secondary base station can establish the SCGsplit bearer autonomously, and deliver the QoS parameters of the SCGsplit bearer to the primary base station, so that the primary base station performs data transmission according to the QoS parameters of the SCGsplit bearer.
  • the introduction of the reflection QoS mechanism in the 5G system is a method for the terminal device to acquire the QoS rule of the uplink data transmission.
  • the basic idea is that the terminal device derives the QoS rule for the uplink data transmission according to the downlink data packet.
  • Each QoS rule includes a QoS flow identification (QFI), a packet filter, and a priority.
  • QFI QoS flow identification
  • the terminal device determines the mapping relationship between the uplink data packet and the QFI, so that the downlink data packet and the uplink data packet satisfying the condition adopt the same QFI.
  • the reflected QoS mechanism introduced in the 5G system carries the QFI in the downlink data packet sent to the terminal device, and adds the QFI on the air interface, so that the terminal device performs the reflection QoS.
  • the base station may determine whether to trigger the reflective QoS according to the indication information sent by the core network device. That is, in one case, the base station receives the data packet carrying the reflected QoS indication (RQI) indication of the core network device, and considers that the reflected QoS is triggered for the data packet; in another case, the base station receives the core network device.
  • RQI reflected QoS indication
  • RQA reflected QoS attributes
  • the secondary base station needs to support reflection QoS, but there is no existing solution.
  • the embodiments of the present application provide a communication method and an access network device, and the secondary base station can support reflection QoS.
  • the first access network device is a base station connected to the core network device, which is a primary base station in a dual connectivity scenario
  • the second access network device is a secondary base station in a dual connectivity scenario. No connection is established with the core network device.
  • FIG. 5 is a schematic diagram of communication of another communication method according to an embodiment of the present disclosure.
  • the method is introduced from the perspective of interaction between a first access network device, a second access network device, and a core network device.
  • Methods can include, but are not limited to, the following steps:
  • Step S501 The first access network device acquires the reflected QoS capability information of the terminal device, where the reflected QoS capability information indicates that the terminal device has or does not have the reflective QoS capability.
  • the terminal device is any one of the one or more terminal devices connected to the first access network device, that is, the terminal device is within the coverage of the first access network device.
  • the first access network device receives the reflected QoS capability indication information of the terminal device from the core network device, where the reflected QoS capability indication information indicates that the terminal device has or does not have a reflection.
  • QoS capabilities The reflected QoS capability indication information of the terminal device may be carried in the signaling sent by the core network device to the first access network device, and the specific signaling is not limited in the embodiment of the present application.
  • the signaling may indicate that the capability indication domain indicates the reflective QoS capability of the terminal device, for example, the capability indication field is “0” indicating that the terminal device does not have the reflective QoS capability, and the capability indication A domain of "1" indicates that the terminal device has a reflective QoS capability; or a capability indication field of "1" indicates that the terminal device does not have a reflective QoS capability, and a capability indication field of "0" indicates that the terminal device has a reflective QoS. ability.
  • the correspondence between the capability indication domain and the capability of the reflected QoS can be defined by a protocol between the access network device and the core network device, that is, the correspondence is known to both the access network device and the core network device.
  • the signaling indicates the reflected QoS capability of the terminal device in an octet string format.
  • the first access network device acquires the reflected QoS capability indication information of the terminal device from the terminal device.
  • the terminal device may send the reflected QoS capability indication information to the first access network device at a certain time, so that the first access network device acquires the reflected QoS capability indication information of the terminal device, And determining, according to the reflected QoS capability indication information, that the terminal device has or does not have a reflective QoS capability.
  • the reflected QoS capability indication information of the terminal device may be carried in the control information, where the control information may be a radio resource control (RRC) UECapabilityInformation message, or may be a 5G system or other control information in a future communication system. .
  • RRC radio resource control
  • the capability indication field may be used in the control information to indicate the reflective QoS capability of the terminal device.
  • the correspondence between the capability indication domain and the capability of the reflected QoS can be defined by a protocol between the access network device and the terminal device, that is, the correspondence is known to both the access network device and the terminal device.
  • Step S502 The first access network device sends a first message to the second access network device.
  • the second access network device receives the first message from the first access network device.
  • the first message carries the reflected QoS capability information of the terminal device.
  • the first access network device sends a first message to the second access network device by using a communication interface between the network devices, where the first message carries the reflected QoS capability information of the terminal device.
  • the first access network device sends the first access network device to the second access network device if it is determined to add the second access network device to the terminal device.
  • a message, the first message is an increase request message, which may be an SGLBAdditionRequest.
  • the first access network device determines, according to the measurement result fed back by the terminal device, whether to add the second access network device to the terminal device.
  • the added second access network device is used to serve the terminal device, and dual connectivity can be implemented.
  • the first access network device determines, according to the measurement result fed back by the terminal device, that the signal of the terminal device is stronger for the second access network device or the terminal device is at the first access If the cell to which the network device belongs and the cell to which the second access network device belongs are common coverage areas, the device may be determined to add the second access network device to the terminal device. The first access network device may further determine whether to add the second access network device to the terminal device according to other information, and the specific determining method is not limited in the embodiment of the present application.
  • the first access network device may select one access from a cell adjacent to a cell to which the first access network device belongs. As the second access network device, the network device may also select an access network device as the second access network device according to the measurement result fed back by the terminal device.
  • the first access network device sends the foregoing to the second access network device if it is determined that the second access network device has served the terminal device
  • the first message is that the first message is a modification request message, and may be an SGNB Modification Request.
  • the first access network device determines, according to the measurement result fed back by the terminal device, whether the second access network device has served the terminal device.
  • the first access network device may further determine, by other methods, whether the second access network device has served the terminal device.
  • the specific determining method is not limited in the embodiment of the present application.
  • the UE reflective QoS capability is the reflected QoS capability information of the terminal device.
  • the reflected QoS capability information of the terminal device may occupy 1 bit in the first message, where the bit is “0” to indicate that the terminal device does not have a reflective QoS capability, and the bit is “1” to indicate the terminal device. Having a reflective QoS capability; or, the bit being "1" indicates that the terminal device does not have a reflective QoS capability, and the bit being "0” indicates that the terminal device has a reflective QoS capability.
  • the correspondence between the bit and the ability to reflect QoS can be defined by a protocol between access network devices, that is, the correspondence is known to both access network devices that interact.
  • the reflected QoS capability information indicates the reflected QoS capability of the terminal device in the form of a character string (Octet String).
  • the first message in Table 5 indicates that the corresponding information is necessary. As can be seen from Table 5, the first message may also include other information. It can be understood that the first message in the embodiment of the present application includes the UE reflective capability.
  • the second access network device receives the first message from the first access network device.
  • the second access network device receives the first message from the first access network device by using a network device, where the first message carries the reflected QoS capability information of the terminal device.
  • Step S503 If the reflected QoS capability information indicates that the terminal device has a reflective QoS capability, the second access network device sends a data packet carrying the QFI to the terminal device.
  • the reflected QoS capability information indicates that the terminal device has a reflective QoS capability
  • the second access network device sends a data packet carrying the QFI to the terminal device by using a first reflective QoS mode.
  • the second access network device receives a data packet from the core network device, and carries a QFI and a reflective QoS indication (RQI) in the data packet, and sends the QoS indication (RQI) to the terminal device through an air interface. Carrying the data packet of the QFI.
  • the second access network device receives the data packet from the core network device, and transmits the data packet on the bearer and the separate bearer corresponding to the second access network device, that is, the SCG bearer and the SCGsplit bearer.
  • the RQI may be used by the second access network device to send the QoS to the terminal device, where the terminal device may carry the
  • the data radio bearer (DRB) may be used to indicate a DBR corresponding to the QoS flow corresponding to the QFI, and the DRB may be an SCG bearer and/or an SCGsplit bearer, and the terminal device may use the uplink data packet. Mapping to the DRB corresponding to the QoS flow corresponding to the QFI.
  • the reflected QoS capability information indicates that the terminal device has a reflective QoS capability
  • the second access network device sends a data packet carrying the QFI to the terminal device by using a second reflective QoS mode.
  • the second access network device receives the data packet from the core network device, and carries the QFI in the data packet, and sends the data packet carrying the QFI to the terminal device through an air interface.
  • the second access network device receives the data packet from the core network device and transmits the data on the bearer and the separated bearer corresponding to the second access network device, that is, the SCG bearer and the SCGsplit bearer.
  • the data packet sent by the second access network device to the terminal device may be used by the RQI to indicate that the terminal device performs reflection QoS, and the terminal device may carry the uplink data packet according to the RQI bit.
  • the QFI; the DBR may be used to indicate the DRB corresponding to the QoS flow corresponding to the QFI, and the DRB may be an SCG bearer and/or an SCGsplit bearer, and the terminal device may map the uplink data packet to the QFI corresponding to the QFI.
  • the DRB corresponding to the QoS flow may be used by the RQI to indicate that the terminal device performs reflection QoS, and the terminal device may carry the uplink data packet according to the RQI bit.
  • the QFI; the DBR may be used to indicate the DRB corresponding to the QoS flow corresponding to the QFI, and the DRB may be an SCG bearer and/or an SCGsplit bearer, and the terminal device may map the uplink data packet to the QFI
  • the second access network device sends a data packet to the terminal device that does not carry the QFI.
  • the first access network device when acquiring the reflected QoS capability indication information of the terminal device, sends the reflected QoS capability indication information of the terminal device to the second access network device, which can be implemented.
  • the primary base station indicates the reflective QoS capability of the terminal device, so that the secondary base station in the dual connectivity scenario supports the reflected QoS, so that the secondary base station can better perform data transmission.
  • the first message further carries second reflected QoS information
  • the embodiment shown in FIG. 5 further includes:
  • Step S504 The core network device sends the first reflected QoS information to the first access network device.
  • the first access network device receives the first reflected QoS information from a core network device;
  • the first reflected QoS information is used to indicate that the terminal device performs a QFI for reflecting QoS and an RQA corresponding to the QFI.
  • the number of QFIs is more than one, which is related to the number of QoS flows, that is, one QoS flow corresponds to one QFI, and QFI is used to identify different QoS flows.
  • the QoS flow is a QoS flow transmitted by the core network device to the first access network device.
  • the first reflected QoS information includes an RQA corresponding to the QFI; In the case of the QoS flow characteristic, the first reflected QoS information does not include the RQA corresponding to the QFI. Similarly, the second reflection QoS information.
  • the first access network device may send a data packet carrying the QFI to the terminal device according to the two manners described in step S503.
  • step S504 is performed before step S502.
  • the 5QI is a 5G QoS indicator (5G QoS indicator), including QFI.
  • 5G QoS indicator 5G QoS indicator
  • M indicates that the corresponding information is necessary
  • O indicates that the corresponding information is optional.
  • the GBR QoS Flow Information includes GFBR and MFBR.
  • the foregoing optional embodiment 1 may implement that the first access network device delivers QoS parameters to the second access network device, including the QFI and the RQA corresponding to the QFI.
  • the embodiment shown in FIG. 5 further includes:
  • Step S505 The second access network device sends first notification control information to the first access network device.
  • the first access network device receives the first notification control information from the second access network device.
  • the first notification control information indicates that the defect QFI that does not satisfy the preset GBR QoS parameter in the GBR QoS parameter of the bearer or the separated bearer corresponding to the second access network device, and the defect QFI corresponding to the dissatisfaction The GBR QoS parameter of the preset GBR QoS parameter. There may be more than one number of defects QFI.
  • the notification control information can be notificationcontrol.
  • GBR QoS parameters include GFBR, MFBR, delay, and so on.
  • the preset GBR QoS parameters include a preset GFBR, a preset MFBR, a preset delay, and the like.
  • the preset GBR QoS parameters may be defined by a protocol, that is, for an access network device, a core network device, and a terminal device, and may also be defined by a core network device, which is not limited.
  • the specific value of the preset GBR QoS parameter is not limited in the embodiment of the present application.
  • the QFI is determined as the defect QFI, and the GBR QoS corresponding to the QFI is determined. Which parameter of the parameter does not satisfy the preset GBR QoS parameter.
  • the QFI may be determined to be the defect QFI.
  • the second access network device may autonomously determine the defect QFI, and the GBR QoS parameter corresponding to the defect QFI that does not satisfy the preset GBR QoS parameter.
  • the second access network device may determine, according to the defect result reported by the terminal device, the defect QFI, and the defect QFI corresponding to the preset GBR QoS parameter GBR QoS parameters. That is, the GBR QoS parameter of the SCG bearer or the SCGsplit bearer does not satisfy the preset GBR QoS parameter, and when the defect QFI is detected, the defect QFI is reported to the secondary base station, and which QoS parameter of the defect QFI corresponding QoS parameter The preset GBR QoS parameters are not met.
  • the reporting message may be an RRC message or layer 2 signaling.
  • step S502 is not necessarily required before step S505.
  • the QoS parameter in step S505 may be a QoS flow parameter.
  • Step S506a The first access network device switches the GBR QoS flow corresponding to the defect QFI from the bearer or the separated bearer corresponding to the second access network device to the bearer corresponding to the first access network device or Separate load bearing;
  • the primary base station switches the GBR QoS flow corresponding to the defect QFI from the SCG bearer or the SCGsplit bearer to the MCG bearer or the MCGsplit bearer switch, and the primary base station transmits the GBR QoS flow corresponding to the defect QFI.
  • Step S506b The first access network device sends second notification control information to the core network device.
  • the core network device receives the second notification control information.
  • the second notification control information indicates the defect QFI, and the GBR QoS parameter corresponding to the defect QFI that does not satisfy the preset GBR QoS parameter.
  • the first access network device may directly go to the core.
  • the network device sends notification control information indicating the defect QFI and the GBR QoS parameter corresponding to the defect QFI that does not satisfy the preset GBR QoS parameter.
  • Step S507b The core network device adjusts the GBR QoS parameter corresponding to the defect QFI.
  • the method for the core network device to the GBR QoS parameter corresponding to the defect QFI is not limited in the embodiment of the present application.
  • the foregoing optional embodiment facilitates the primary base station and the core network device to further analyze the cause of the defect by notifying the control information, and adjusts accordingly.
  • FIG. 6 is a schematic diagram 1 of the device provided by the embodiment of the present application.
  • the device may be a terminal device, or may be a chip or a circuit, such as a chip or a circuit that can be disposed on the terminal device.
  • the terminal device may correspond to the terminal device in the above method.
  • the device can include a processor 110 and a memory 120.
  • the memory 120 is configured to store instructions for executing the instructions stored in the memory 120 to implement the method corresponding to FIG.
  • the device may further include an input device 140 and an output device 150. Further, the device may further include a bus system 130, wherein the processor 110, the memory 120, the inputter 140, and the outputter 150 may be connected by a bus system 130.
  • the processor 110 is configured to execute the instructions stored by the memory 120 to control the input signal received by the input unit 140 and control the output of the output device 150 to complete the steps of the terminal device in the above method.
  • the input unit 140 and the output unit 150 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 120 may be integrated in the processor 110 or may be provided separately from the processor 110.
  • the functions of the input unit 140 and the output unit 150 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processor 110 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • the terminal device provided by the embodiment of the present application may be implemented by using a general-purpose computer.
  • Program code to implement processor 110, inputter 140 and outputter 150 functions is stored in a memory that implements the functions of processor 110, inputter 140 and outputter 150 by executing code in memory.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by the present application.
  • the terminal device can be adapted for use in the system shown in FIG.
  • FIG. 7 shows only the main components of the terminal device.
  • the terminal device includes a processor, a memory, a control circuit, an antenna, and an input/output device.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device to perform the actions described in the foregoing communication method embodiment.
  • Memory is primarily used to store software programs and data.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit and the antenna together can also be called an input/output port, and are mainly used for transmitting and receiving an RF signal in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 7 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control and execute the entire terminal device.
  • the processor in FIG. 7 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal device may include a plurality of baseband processors to accommodate different network standards, and the terminal device may include a plurality of central processors to enhance its processing capabilities, and various components of the terminal devices may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having the transceiving function can be regarded as the transceiving unit 101 of the terminal device, and the processor having the processing function can be regarded as the processing unit 102 of the terminal device.
  • the terminal device includes a transceiver unit 101 and a processing unit 102.
  • the transceiver unit can also be referred to as an input/output port, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 101 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 101 is regarded as a sending unit, that is, the transceiver unit 101 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, an input device, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • FIG. 8 is a schematic diagram 2 of the device provided by the embodiment of the present application.
  • the device may be a network device, or may be a chip or a circuit, such as a chip or a circuit that can be disposed in a network device.
  • the network device corresponds to the network device in the above method.
  • the device can include a processor 210 and a memory 220.
  • the memory 220 is configured to store instructions for executing the instructions stored by the memory 220 to cause the apparatus to implement the method corresponding to the foregoing FIG.
  • the network may also include an inputter 240 and an outputter 250. Still further, the network can also include a bus system 230.
  • the processor 210, the memory 220, the inputter 240 and the outputter 250 are connected by a bus system 230, and the processor 210 is configured to execute instructions stored in the memory 220 to control the input unit 240 to receive signals and control the output unit 250 to send signals.
  • the steps of the network device in the above method are completed.
  • the input unit 240 and the output unit 250 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 220 may be integrated in the processor 210 or may be provided separately from the processor 210.
  • the functions of the inputter 240 and the outputter 250 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processor 210 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • a network device provided by an embodiment of the present application may be implemented by using a general-purpose computer.
  • the program code that is to implement the functions of the processor 210, the inputter 240 and the outputter 250 is stored in a memory, and the general purpose processor implements the functions of the processor 210, the inputter 240, and the outputter 250 by executing the code in the memory.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application, which may be a schematic structural diagram of a base station.
  • the base station can be applied to the system as shown in FIG. 1.
  • the base station includes one or more radio frequency units, such as a remote radio unit (RRU) 201 and one or more baseband units (BBUs) (also referred to as digital units, DUs) 202.
  • RRU 201 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or an input/output port or the like, which may include at least one antenna 2011 and a radio frequency unit 2012.
  • the RRU 201 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting the signaling messages described in the foregoing embodiments to the terminal device.
  • the BBU 202 part is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 201 and the BBU 202 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 202 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing unit
  • the BBU can be used to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the BBU 202 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access Network.
  • the BBU 202 also includes a memory 2021 and a processor 2022.
  • the memory 2021 is used to store necessary instructions and data.
  • the memory 2021 stores preset information, a codebook, and the like in the above embodiment.
  • the processor 2022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the memory 2021 and the processor 2022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • the embodiment of the present application further provides a communication system including the foregoing network device and one or more terminal devices.
  • the processor may be a central processing unit (Central Processing Unit, "CPU"), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits ( ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory can include read only memory and random access memory and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the bus system may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • a power bus may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the various buses are labeled as bus systems in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state hard disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium eg, a solid state hard disk (SSD)

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Abstract

本申请实施例公开了一种通信方法及接入网设备，其中方法包括如下步骤：第一接入网设备向第二接入网设备发送第一消息，第一消息携带第一接入网设备对应的分离承载下的QFI和QFI对应的QoS参数；第二接入网设备接收来自第一接入网设备的第一消息，第一消息携带第一接入网设备对应的分离承载下的QFI和QFI对应的QoS参数；第二接入网设备向第一接入网设备发送第二消息，第二消息是对第一消息的响应。用本申请实施例，以期实现QoS控制。

Description

一种通信方法及接入网设备
本申请要求于2017年6月16日提交中国专利局、申请号为201710459520.2、申请名称为“一种通信方法及接入网设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及接入网设备。
背景技术
第五代移动通信(5th-generation，5G)系统将支持各种类型的网络部署和应用类型，包括：更高速率体验和更大带宽的接入能力；更低时延和高可靠的信息交互；更大规模，低成本的机器型(machine-type communication，MTC)设备的接入和管理。为了满足上述需求，5G系统定义了基于QoS流(flow)的服务质量(quality of service，QoS)框架，其将支持保障流速率的QoS flow和不保障流速率的QoSflow。
5G系统中引入反射QoS机制，是一种终端设备获取上行数据传输QoS规则的一种方法，其基本思想是终端设备根据下行数据包来推导出上行数据传输的QoS规则。
5G系统下，如何实现QoS控制，是一个值得考虑的问题。
发明内容
本申请实施例所要解决的技术问题在于，提供一种通信方法及接入网设备，以期实现QoS控制。
第一方面，本申请实施例提供了一种通信方法，包括：
步骤1：第一接入网设备向第二接入网设备发送第一消息，第一消息携带第一接入网设备对应的分离承载下的QFI和QFI对应的QoS参数；
步骤2：第一接入网设备接收来自第二接入网设备的第二消息，第二消息是对第一消息的响应。
第二方面，本申请实施例提供一种通信装置，包括：包括用于执行以上第一方面各个步骤的单元或手段(means)。
第三方面，本申请实施例提供一种通信装置，包括至少一个处理元件和至少一个存储元件，其中至少一个存储元件用于存储程序和数据，至少一个处理元件用于执行本申请实施例第一方面中提供的方法。
第四方面，本申请实施例提供一种通信装置，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
第五方面，本申请实施例提供一种通信方法程序，该程序在被处理器执行时用于执行以上第一方面的方法。
第六方面，本申请实施例提供一种程序产品，例如计算机可读存储介质，包括第五方面的程序。
可见，在以上各个方面，对于核心网和主基站间传递的GBR QoS流，由主基站对于 GBR QoS流实现了集中控制，最终满足GBR QoS的性能需求。具体的说，对于同一GBR QoS流，经由主基站和UE间传输的GBR QoS流部分，由主基站对其实现有效的QoS保障；对于经由辅基站和UE间传输的QoS流部分，由辅助基站实现有效的QoS保障。辅助基站可基于这些GBR QoS参数，在辅助基站进行有效的无线资源管理，通过空口资源调度，无线链路层的逻辑信道优先级调度等，进一步的保障GBR QoS参数的性能。
结合第一方面至第六方面，在一种可能实现的方式中，第一接入网设备对应的分离承载下的QFI对应的QoS参数包括GBR QoS参数，GBR QoS参数包括第二接入网设备需满足的保障流比特速率GFBR和第二接入网设备需满足的最大比特速率MFBR。
结合第一方面至第六方面，在一种可能实现的方式中，第一消息还携带第一接入网设备对应的承载和/或分离承载与QoS参数之间的映射关系。
结合第一方面至第六方面，在一种可能实现的方式中，第一消息还携带待切换的QFI，以及待切换的QFI对应的QoS参数。
辅助基站根据待切换的QFI和其对应的QoS参数，不同于主基站为其做最终决定，其可以自主决定建立SCG承载还是SCG分离承载，可以自主决定建立1个还是多个承载；同时可自主决定QoS流与SCG承载或者SCG承载的映射关系，从而辅助基站基于其负载状况、QoS参数、信道条件等，可最大可能的满足QoS参数需求，提升了用户最终体验。
另外，根据第一消息，辅助基站可优先采用与主基站相同的承载配置和QoS流与承载的配置关系，避免了流的乱序，对于基于TCP的业务而言，避免了无效的TCP拥塞避免机制，提升了用户吞吐量。
结合第一方面至第六方面，在一种可能实现的方式中，第二消息携带第二接入网设备对应的分离承载下的QFI和QFI对应的QoS参数。
结合第一方面至第六方面，在一种可能实现的方式中，第一接入网设备接收来自第二接入网设备第三消息，第三消息携带第二接入网设备对应的分离承载下的QFI和QFI对应的QoS参数。
结合第一方面至第六方面，在一种可能实现的方式中，第一接入网设备根据第二接入网设备对应的分离承载下的QFI和QFI对应的QoS参数进行数据传输。
结合第一方面至第六方面，在一种可能实现的方式中，第二接入网设备对应的分离承载下的QFI对应的QoS参数包括GBR QoS参数，GBR QoS参数包括第一接入网设备需满足的GFBR和第一接入网设备需满足的MFBR。
对于核心网和辅助基站间传递的GBR QoS流，由辅助基站对于GBR QoS流实现了集中控制，最终满足GBR QoS的性能需求。具体的说，对于同一GBR QoS流，经由辅助基站和UE间传输的GBR QoS流部分，由辅助基站对其实现有效的QoS保障；对于经由主基站UE间传输的QoS流部分，由主基站实现有效的QoS保障。另外，主基站可基于这些GBR QoS参数，在主基站进行有效的无线资源管理，通过空口资源调度，无线链路层的逻辑信道优先级调度等，进一步的保障GBR QoS参数的性能。
第七方面，本申请实施例提供了一种通信方法，包括：
步骤1：第一接入网设备获取终端设备的反射服务质量QoS能力信息，所述反射QoS能力信息指示所述终端设备具有或不具有反射QoS能力；
步骤2：所述第一接入网设备向第二接入网设备发送第一消息，所述第一消息携带所述终端设备的反射QoS能力信息。
第八方面，本申请实施例提供一种通信装置，包括：包括用于执行以上第七方面各个步骤的单元或手段(means)。
第九方面，本申请实施例提供一种通信装置，包括至少一个处理元件和至少一个存储元件，其中至少一个存储元件用于存储程序和数据，至少一个处理元件用于执行本申请实施例第七方面中提供的方法。
第十方面，本申请实施例提供一种通信装置，包括用于执行以上第七方面的方法的至少一个处理元件(或芯片)。
第十一方面，本申请实施例提供一种通信方法程序，该程序在被处理器执行时用于执行以上第七方面的方法。
第十二方面，本申请实施例提供一种程序产品，例如计算机可读存储介质，包括第五方面的程序。
可见，在以上各个方面，第一接入网设备可以将第一接入网设备对应的分离承载下的QFI和QFI对应的QoS参数传输至第二接入网设备，从而实现主基站向辅基站传递QoS参数。
结合第七方面至第十二方面，在一种可能实现的方式中，第二接入网设备根据第一接入网设备对应的分离承载下的QFI和QFI对应的QoS参数进行数据传输。
结合第七方面至第十二方面，在一种可能实现的方式中，第一接入网设备对应的分离承载下的QFI对应的QoS参数包括GBR QoS参数，GBR QoS参数包括第二接入网设备的需满足的GFBR和第二接入网设备需满足的MFBR。
结合第七方面至第十二方面，在一种可能实现的方式中，第一消息还携带第一接入网对应的承载和/或分离承载与QoS参数之间的映射关系；第二接入网设备通过第一接入网对应的承载或分离承载与QoS参数之间的映射关系传输从第一接入网设备接收的QoS流。
结合第七方面至第十二方面，在一种可能实现的方式中，第一消息还携带待切换的QFI，以及待切换的QFI对应的QoS参数；第二接入网设备根据待切换的QFI和待切换的QFI对应的QoS参数建立第二接入网设备对应的承载，以及第二接入网设备对应的承载与待切换的QFI对应的QoS参数之间的映射关系。
结合第七方面至第十二方面，在一种可能实现的方式中，第二接入网设备向第一接入网设备发送第二消息，第二消息是对第一消息的响应，第二消息包括第二接入网设备对应的分离承载下的QFI和QFI对应的QoS参数。
结合第七方面至第十二方面，在一种可能实现的方式中，第二接入网设备确定建立第二接入网设备对应的分离承载；
第二接入网设备向第一接入网设备发送第三消息，第三消息包括第二接入网设备对应的分离承载下的QFI和QFI对应的QoS参数。
结合第七方面至第十二方面，在一种可能实现的方式中，第二接入网设备对应的分离承载下的QFI对应的QoS参数包括GBR QoS参数，GBR QoS参数包括第一接入网设备需满足的GFBR和第一接入网设备需满足的MFBR。
本申请实施例第十三方面，还提供一种通信方法，包括：
第一接入网设备获取终端设备的反射服务质量QoS能力信息，反射QoS能力信息指示终端设备具有或不具有反射QoS能力；
第一接入网设备向第二接入网设备发送第一消息，第一消息携带终端设备的反射QoS能力信息。
在一种可能实现的方式中，第一接入网设备向第二接入网设备发送第一消息之前，还包括：
第一接入网设备从核心网设备接收第一反射QoS信息，第一反射QoS信息用于指示终端设备进行反射QoS的QFI和QFI对应的反射QoS属性RQA。
在一种可能实现的方式中，第一消息还携带第二反射QoS信息，第一反射QoS信息用于指示QFI和QFI对应的RQA。
在一种可能实现的方式中，第一接入网设备接收来自第二接入网设备的第一通知控制信息，第一通知控制信息指示第二接入网设备对应的承载或分离承载下的保障比特速率GBR QoS参数中不满足预设GBR QoS参数的缺陷QFI，以及缺陷QFI对应的不满足预设GBR QoS参数的GBR QoS参数；其中，GBR QoS参数包括GFBR和MFBR。
在一种可能实现的方式中，第一接入网设备将缺陷QFI对应的GBR QoS流从第二接入网设备对应的承载或分离承载切换至第一接入网设备对应的承载或分离承载；
或，第一接入网设备向核心网设备发送第二通知控制信息，第二通知控制信息指示缺陷QFI，以及缺陷QFI对应的不满足预设GBR QoS参数的GBR QoS参数。
本申请实施例第十四方面，还提供一种通信方法，包括：
第二接入网设备接收来自第一接入网设备的第一消息，第一消息携带终端设备的反射QoS能力信息，反射QoS能力信息指示终端设备具有或不具有反射QoS能力；
若反射QoS能力信息指示终端设备具有反射QoS能力，则第二接入网设备向终端设备发送携带QFI的数据包。
在一种可能实现的方式中，第一消息还携带反射QoS信息，反射QoS信息用于指示终端设备进行反射QoS的QFI和QFI对应的RQA。
在一种可能实现的方式中，第二接入网设备在确定出第二接入网设备对应的承载或分离承载下的GBR QoS参数不满足预设GBR QoS参数的情况下，向第一接入网设备发送第一通知控制信息，第一通知控制信息用于指示不满足预设GBR QoS参数的缺陷QFI，以及缺陷QFI对应的不满足预设GBR QoS参数的GBR QoS参数。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是应用本申请实施例的网络架构示意图；
图2a是应用本申请实施例的一种场景示意图；
图2b是应用本申请实施例的另一种场景示意图；
图3是本申请实施例提供的一种通信方法的通信示意图；
图4是本申请实施例提供的另一种通信方法的通信示意图；
图5是本申请实施例提供的又一种通信方法的通信示意图；
图6是本申请实施例提供的设备的示意图一；
图7是本申请提供的一种终端设备的结构示意图；
图8是本申请实施例提供的设备的示意图二；
图9是本申请实施例提供的一种网络设备的结构示意。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
本申请实施例可以应用于图1所示的网络架构示意图，图1所示的网络架构为无线通信系统的网络架构，通常包括终端设备、接入网设备、核心网设备组成，各个设备数量以及形态并不构成对本申请实施例的限定。其中，接入网设备可以是基站(Base Station，BS)，基站可以向多个终端设备提供通信服务，多个基站可以向同一个终端设备提供通信服务。在一个实施例中，基站包含基带单元(baseband unit，BBU)和远端射频单元(remote radio unit，RRU)。BBU和RRU可以放置在不同的地方，例如：RRU拉远，放置于离高话务量的开阔区域，BBU放置于中心机房。BBU和RRU也可以放置在同一机房。BBU和RRU也可以为一个机架下的不同部件。
需要说明的是，本申请实施例提及的无线通信系统包括但不限于：窄带物联网系统(narrow band-internet of things，NB-IoT)、全球移动通信系统(global system for mobile communications，GSM)、增强型数据速率GSM演进系统(enhanced data rate for GSM evolution，EDGE)、宽带码分多址系统(wideband code division multiple access，WCDMA)、码分多址2000系统(code division multiple access，CDMA2000)、时分同步码分多址系统(time division-synchronization code division multiple access，TD-SCDMA)，长期演进系统(long term evolution，LTE)、第五代移动通信(5th-generation，5G)系统以及未来移动通信系统。
本申请实施例中，所述基站是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。所述基站可以包括各种形式的宏基站，微基站(也称为小站)，中继站，接入点，传输接入点(transmission receiver point，TRP)等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如，在第三代(3rd-generation，3G)系统中，称为节点B(Node B，NB)；在LTE系统中，称为演进的节点B(evolved NodeB，eNB或者eNodeB)；在5G系统中，称为gNB等。为方便描述，本申请所有实施例中，上述为终端设备提供无线通信功能的装置统称为接入网设备。
随着用户对无线通信的需求越来越大，网络流量的快速增长，网络部署将会越来越密集，并且会同时兼顾宏基站和小基站发展演进。小蜂窝的广泛应用以及相应的非理想反向回程的需求催生了双连接(dual connectivity，DC)技术，即一个终端设备同时连接到一个宏基站和一个小蜂窝基站的载波聚合方式。
长期演进(long term evolution，LTE)系统中，处于双连接模式下的终端设备，只在一个基站与移动性管理实体(mobile management entity，MME)之间存在一个S1-MME连接。提供S1-MME连接的基站可以称为主基站(master evolved node B，MeNB)，另一个基站用于提供额外的资源，可以称为辅基站(secondary evolved node B，SeNB)。每个基站都能够 独立管理终端设备和各自的小区中的无线资源。主基站与辅基站之间的资源协调工作经由X2接口上的信令消息来传送。
主基站可以是MeNB(master eNB)，也可以是MgNB(master gNB)，还可以是MN(master Node B)；辅基站可以是SeNB(secondary eNB)，也可以是SgNB(secondary gNB)，还可以是为SN(secondary Node B)。
本申请实施例中所涉及到的终端设备可以包括各种具有无线通信功能的用户设备(user equipment，UE)、手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。所述终端设备也可以称为移动台(mobile station，MS)、终端(terminal)，还可以包括用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能手机(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端等。为方便描述，本申请所有实施例中，上面提到的设备统称为终端设备。
本申请实施例中所涉及的核心网设备可以为5G系统中的核心网设备，可以包括用户面控制功能(user plane function，UPF)设备、控制面控制功能(control plane function，CPF)设备、设备会话管理功能(session management function，SMF)设备、接入和移动性管理功能(access and mobility management function，AMF)设备等。
本申请实施例可以应用于图2a和图2b所示的场景示意图中。其中，图2a为新空口(new radio，NR)-NR双连接的场景，即两个接入网设备均为NR基站，该场景可支持4种承载类型，分别为主基站控制的主小区组(master cell group，MCG)承载(bearer)、MCG分离(split)承载、辅基站控制的辅小区组(secondary cell group，SCG)承载、SCG分离承载。其中，MCG split bearer在将经过业务数据适配协议(service data adaptation protocol，SDAP)、分组数据汇聚协议(packet data convergence protocol，PDCP)处理的QoS流分为两条路径传输，一条通过Xn接口传输至SgNB，由SgNB通过无线链路控制(radio link control，RLC)层、媒体访问控制(media access control，MAC)层传输至终端设备；一条由MgNB通过RLC层、MAC层传输至终端设备。同理，SCG split bearer在将PDCP处理后的QoS流分为两条路径传输，一条通过Xn接口传输至MgNB，由MgNB通过RLC层、MAC层传输至终端设备；一条由SgNB通过RLC层、MAC层传输至终端设备。
图2b为NR-LTE双连接的场景，即一个接入网设备为NR基站，一个接入网设备为LTE基站。在主基站为LTE基站，辅基站为NR基站的场景下，可支持上述4中承载类型。在主基站为NR基站，辅基站为LTE基站的场景下，除了不支持SCG split bearer外，其余三种类型都可支持。图2b所示的场景中，两个基站双连接至5G核心网。
需要说明的是，图2a和图2b所示的场景均为主基站和辅基站双连接至5G核心网的场景。当双连接的场景下，某些QoS流需要经由辅助基站传输，辅助基站也需要保障QoS流的参数需求。
下面将对5G系统下单连接基于QoS流的参数进行介绍：
通知控制(notification control)，一般用于保障比特速率(guaranteed bit rate，GBR)QoS流。当接入网设备无法满足GBR QoS flow的性能参数时，接入网设备告知核心网的 SMF，由核心网进一步进行操作(例如，通知应用服务器修改编码速率等)。
保障流比特速率(guaranteed flow bit rate，GFBR)，用于上行和下行GBR QoS流，指示对于一个GBR流应该保障的比特速率。
最大比特速率(maximum bit rate，MFBR)，用于与上行和下行GBR QoS流，指示对于一个GBR流，可用使用的最大的比特速率。超过最大比特速率部分将被滤除。
会话聚合比特速率(per session aggregate maximum bit rate，Session-AMBR)，用于非GBR QoS流。其限制了终端设备的协议数据单元(protocol data unit，PDU)会话所能提供的所有非GBR QoS流的比特聚合值。Session–AMBR由核心网设备告知接入网设备。
用户设备聚合比特速率(per user equipment aggregate maximum bit rate，UE-AMBR)，用于非GBR QoS流。其限制了一个终端设备所能提供的所有非GBR QoS流的比特聚合值。
需要说明的是，本申请实施例中第一接入网设备为与核心网设备相连接的基站，为双连接场景中的主基站，第二接入网设备为双连接场景中的辅基站，未与核心网设备建立连接。
目前，5G系统中也可以采用双连接技术，但是由于5G系统与LTE系统中的QoS框架存在差别，因此5G系统中如何传递QoS信息是亟待解决的问题。
鉴于此，本申请实施例还提供一种通信方法及接入网设备，以期实现5G系统下的QoS控制，进一步实现主基站与辅基站之间的QoS信息传递。
请参见图3，图3是本申请实施例提供的一种通信方法的通信示意图，该方法从第一接入网设备、第二接入网设备交互的角度进行介绍，该方法可以包括但不限于如下步骤：
步骤S301：第一接入网设备向第二接入网设备发送第一消息。相应地，所述第二接入网设备接收来自所述第一接入网设备的所述第一消息。
其中，所述第一消息携带所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数，即携带MCGsplit承载下的QFI和所述QFI对应的QoS参数。其中，QoS参数可以是QoS流参数，本申请所有实施例将以QoS流参数为例进行介绍。
当所述第一接入网设备对应多个分离承载时，所述第一消息还携带所述第一接入网设备对应的多个分离承载下的QFI和所述QFI对应的QoS参数。
可选地，所述第一消息还包括其他内容，可参见表1：
表1
>split bearer list  
>>PDU session ID  
>>MCG split bearer ID M
>>QoS flows parameters M
其中，QoS flows parameters可参见表2：
表2
IE/GroupName Presence
5QI M
Allocation and Retention Priority M
Non-standardised QoS Flow descriptor O
GBR QoS Flow Information O
其中，GBR QoS Flow Information包括所述第二接入网设备需满足的GFBR(SN GFBR)和所述第二接入网设备需满足的MFBR(SN MFBR)，SN GFBR包括上行SN GFBR和下行SN GFBR，SN MFBR包括上行SN MFBR和下行SN MFBR，可参见表3：
表3
SN Maximum Flow Bit Rate Downlink M
SN Maximum Flow Bit Rate Uplink M
SN Guaranteed Flow Bit Rate Downlink M
SN Guaranteed Flow Bit Rate Uplink M
其中，表1、表2和表3中的“M”表示该项对应的信息为必要的；“O”表示该项对应的信息为可选的。
可选地，SN GFBR和SN MFBR可由所述第一接入网设备定义，也可以由所述第一接入网设备与所述第二接入网设备进行协商确定。例如，主基站向辅基站发送第一SN GFBR和第一SN MFBR，辅基站认为这两个值不合适，可进行更新，向主基站发送更新的第二SN GFBR和第二SN MFBR，这样可以增加辅基站的主动性。提升系统的灵活性。
步骤S302：所述第二接入网设备根据所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输。
可选地，所述第二接入网设备可根据所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS流参数确定QFI的优先级，根据优先级顺序进行媒体访问控制(media access control，MAC)调度、资源分配等处理，然后将处理后的数据进行传输。
步骤S303：所述第二接入网设备向所述第一接入网设备发送第二消息。相应地，所述第一接入网设备从所述第二接入网设备接收第二消息。
可选地，所述第二消息包括所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
可选地，所述第一接入网设备接收来自所述第二接入网设备的所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。所述第二消息用于响应所述第一消息。
当所述第一接入网设备对应多个分离承载时，所述第一消息还携带所述第一接入网设备对应的多个分离承载下的QFI和所述QFI对应的QoS参数。
可选地，所述第二消息还包括其他内容，可参见表4-1：
表4-1
>split bearer list  
>>PDU session ID  
>>SCG split bearer ID M
>>QoS flows parameters M
其中，QoS flows parameters可参见表2。所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数与所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数类似。区别在于所述第二接入网设备对应的分离承载下的GBR QoS参数 包括所述第一接入网设备的GFBR(MN GFBR)和所述第一接入网设备的MFBR(MN MFBR)可参见表4-2：
表4-2
MN Maximum Flow Bit Rate Downlink M
MN Maximum Flow Bit Rate Uplink M
MN Guaranteed Flow Bit Rate Downlink M
MN Guaranteed Flow Bit Rate Uplink M
所述第一接入网设备根据所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输，与所述第二接入网设备根据所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输类似。
需要说明的是，所述第一消息可以携带所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数，也可以不携带所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
在图3所示的实施例中，所述第一消息具体可以是SGNB Addition Request或SGNB Modification Request，所述第二消息具体可以是SGNB Addition Acknowledge或SGNB Modification Acknowledge。
在图3所示的实施例中，可以实现主基站向辅基站传递MCG承载下的QoS参数，以便辅基站根据MCG承载下的QoS参数进行数据传输。
作为一个可选的实施例，所述第一消息还携带所述第一接入网设备对应的承载和/或分离承载与QoS参数之间的映射关系。所述第二接入网设备参考所述第一接入网对应的承载和/或分离承载与QoS参数之间的映射关系传输从所述第一接入网设备接收的QoS流，避免在所述第一接入网设备下的QoS流未完成传输的情况下发生QoS流的乱序。
所述第一消息还携带待切换的QFI，以及所述待切换的QFI对应的QoS参数。其中，所述待切换的QFI可以为所述第一接入网设备将要切换至所述第二接入网设备的QoS流的QFI。
可选地，所述第二接入网设备可以根据所述待切换的QFI和所述待切换的QFI对应的QoS参数建立所述第二接入网设备对应的承载，以及所述第二接入网设备对应的承载与所述待切换的QFI对应的QoS参数之间的映射关系，避免数据传输发生中断。
可选地，若所述第一接入网设备允许所述第一接入网设备对应的承载切换到所述第二接入网设备对应的分离承载，则所述第一消息携带所述待切换的QFI，所述待切换的QFI对应的QoS参数，以及所述第一接入网设备对应的承载或分离承载与QoS参数之间的映射关系。
作为一个可选的实施例，图3所示的实施例还包括图3所示虚线部分。
请参见图4，图4是本申请实施例提供的另一种通信方法的通信示意图，该方法从第一接入网设备、第二接入网设备交互的角度进行介绍，该方法可以包括但不限于如下步骤：
步骤S401：第二接入网设备确定建立所述第二接入网设备对应的分离承载；
具体地，所述第二接入网设备自主确定建立所述第二接入网设备对应的分离承载。可 选地，所述第二接入网设备自主确定建立所述第二接入网设备对应的承载。
步骤S402：所述第二接入网设备向第一接入网设备发送第一消息。相应地，所述第一接入网设备接收来自所述第二接入网设备的所述第一消息。
其中，所述第一消息携带所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
可选地，所述第一接入网设备根据所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输，可参见图3所示实施例中的描述。
步骤S403：所述第一接入网设备向所述第二接入网设备发送第二消息。相应地，所述第二接入网设备接收来自所述第一接入网设备的所述第二消息。
其中，所述第二消息用于响应所述第一消息。
在图4所示的实施例中，所述第一消息具体可以是SGNBModificationRequire，所述第二消息具体可以是SSGNBModificationConfirm。
在图4所示的实施例中，可以实现辅基站自主建立SCGsplit承载，并向主基站传递SCGsplit承载下的QoS参数，以便主基站根据SCGsplit承载下的QoS参数进行数据传输。
5G系统中引入反射QoS机制，是一种终端设备获取上行数据传输QoS规则的一种方法，其基本思想是终端设备根据下行数据包来推导出上行数据传输的QoS规则。每个QoS规则包括QoS流标识(qualityofserviceflowidentification，QFI)、包过滤器和优先权。基于反射QoS方法，终端设备将决定上行数据包与QFI之间的映射关系，从而使得满足条件的下行数据包和上行数据包采用相同的QFI。
目前，5G系统中引入的反射QoS机制，在发送至终端设备的下行数据包中携带QFI，在空口上添加QFI，以便终端设备进行反射QoS。基站可根据核心网设备发送的指示信息来确定是否触发反射QoS。即在一种情况下，基站接收到核心网设备的携带反射QoS指示(reflectiveQoSindication，RQI)指示的数据包，认为针对该数据包触发反射QoS；在另一种情况下，基站接收到核心网设备针对某些QoS流的反射QoS属性(reflectiveQoS attribute，RQA)的信令，则认为针对这些QoS流触发反射QoS。但上述都是单基站场景，在双连接的场景下，辅基站有需要支持反射QoS，但目前没有现有方案。
鉴于此，本申请实施例提供一种通信方法及接入网设备，辅基站可支持反射QoS。
需要说明的是，本申请实施例中第一接入网设备为与核心网设备相连接的基站，为双连接场景中的主基站，第二接入网设备为双连接场景中的辅基站，未与核心网设备建立连接。
请参见图5，图5是本申请实施例提供的又一种通信方法的通信示意图，该方法从第一接入网设备、第二接入网设备、核心网设备交互的角度进行介绍，该方法可以包括但不限于如下步骤：
步骤S501：第一接入网设备获取终端设备的反射QoS能力信息，所述反射QoS能力信息指示所述终端设备具有或不具有反射QoS能力。
其中，所述终端设备为连接至所述第一接入网设备的一个或多个终端设备中的任意一个，即所述终端设备在所述第一接入网设备的覆盖范围内。
在一种可能实现的方式中，所述第一接入网设备从核心网设备接收所述终端设备的反射QoS能力指示信息，所述反射QoS能力指示信息指示所述终端设备具有或不具有反射QoS能力。所述终端设备的反射QoS能力指示信息可承载在所述核心网设备向所述第一接入网设备发送的信令中，具体是哪种信令在本申请实施例中不作限定。在一种实现方式中，所述信令可采用能力指示域对所述终端设备的反射QoS能力进行指示，例如，能力指示域为“0”指示所述终端设备不具有反射QoS能力，能力指示域为“1”指示所述终端设备具有反射QoS能力；或者，能力指示域为“1”指示所述终端设备不具有反射QoS能力，能力指示域为“0”指示所述终端设备具有反射QoS能力。能力指示域与是否具有反射QoS能力的对应关系可由接入网设备与核心网设备之间的协议定义，即该对应关系针对接入网设备和核心网设备都是可知的。在另一种实现方式中，所述信令以字符串(octetstring)形式对所述终端设备的反射QoS能力进行指示。
在一种可能实现的方式中，所述第一接入网设备从所述终端设备获取所述终端设备的反射QoS能力指示信息。可选地，所述终端设备可在某个时刻向所述第一接入网络设备发送反射QoS能力指示信息，以便所述第一接入网设备获取所述终端设备的反射QoS能力指示信息，并根据所述反射QoS能力指示信息确定所述终端设备具有或不具有反射QoS能力。其中，所述终端设备的反射QoS能力指示信息可承载在控制信息中，所述控制信息可以是无线资源控制(radioresourcecontrol，RRC)UECapabilityInformation消息，还可以是5G系统或未来通信系统中的其他控制信息。同理，所述控制信息中可采用能力指示域对所述终端设备的反射QoS能力进行指示。能力指示域与是否具有反射QoS能力的对应关系可由接入网设备与终端设备之间的协议定义，即该对应关系针对接入网设备和终端设备都是可知的。
步骤S502：所述第一接入网设备向第二接入网设备发送第一消息。相应地，所述第二接入网设备接收来自所述第一接入网设备的所述第一消息。
其中，所述第一消息携带所述终端设备的反射QoS能力信息。
可选地，所述第一接入网设备通过网络设备之间的通信接口向第二接入网设备发送第一消息，所述第一消息携带所述终端设备的反射QoS能力信息。
在一种可能实现的方式中，所述第一接入网设备在确定为所述终端设备增加所述第二接入网设备的情况下，向所述第二接入网设备发送所述第一消息，此时所述第一消息为增加请求消息，具体可以为SGNBAdditionRequest。
可选地，所述第一接入网设备根据所述终端设备反馈的测量结果确定是否为所述终端设备增加所述第二接入网设备。增加的所述第二接入网设备用于为所述终端设备服务，可以实现双连接。
例如，所述第一接入网设备根据所述终端设备反馈的测量结果确定出所述终端设备的信号针对所述第二接入网设备较强或所述终端设备在所述第一接入网设备所属小区和第二接入网设备所属小区共同覆盖区域，则可以确定为所述终端设备增加所述第二接入网设备。所述第一接入网设备还可以根据其他信息确定是否为所述终端设备增加所述第二接入网设备，具体确定方法在本申请实施例中不作限定。
若确定出需要为所述终端设备增加所述第二接入网设备，则所述第一接入网设备可从 与所述第一接入网设备所属小区相邻的小区中选择一个接入网设备作为所述第二接入网设备，也可根据所述终端设备反馈的测量结果选择一个接入网设备作为所述第二接入网设备。
在一种可能实现的方式中，所述第一接入网设备在确定所述第二接入网设备已为所述终端设备服务的情况下，向所述第二接入网设备发送所述第一消息，此时所述第一消息为修改请求消息，具体可以为SGNB Modification Request。
可选地，所述第一接入网设备根据所述终端设备反馈的测量结果确定所述第二接入网设备是否已经为所述终端设备服务。所述第一接入网设备还可以其他方法确定是所述第二接入网设备是否已经为所述终端设备服务，具体确定方法在本申请实施例中不作限定。
携带所述终端设备的反射QoS能力信息的所述第一消息可参见表5，其中UE reflective QoS capability即为所述终端设备的反射QoS能力信息。所述终端设备的反射QoS能力信息可在所述第一消息中占用1个比特，该比特为“0”指示所述终端设备不具有反射QoS能力，该比特为“1”指示所述终端设备具有反射QoS能力；或者，该比特为“1”指示所述终端设备不具有反射QoS能力，该比特为“0”指示所述终端设备具有反射QoS能力。该比特与是否具有反射QoS能力的对应关系可由接入网设备之间的协议定义，即该对应关系针对交互的两个接入网设备都是可知的。在另一种实现方式中，所述反射QoS能力信息以字符串(Octet String)形式对所述终端设备的反射QoS能力进行指示。
表5
Figure PCTCN2018090830-appb-000001
表5中“M”表示对应的信息为必要的。由表5可知，所述第一消息还可以包括其他信息。可以理解的是，本申请实施例中所述第一消息中包括UE reflective capability。
相应地，所述第二接入网设备从所述第一接入网设备接收所述第一消息。
可选地，所述第二接入网设备通过网络设备之间从所述第一接入网设备接收所述第一消息，所述第一消息携带所述终端设备的反射QoS能力信息。
步骤S503：若所述反射QoS能力信息指示所述终端设备具有反射QoS能力，则所述第二接入网设备向所述终端设备发送携带QFI的数据包。
在一种可能实现的方式中，所述反射QoS能力信息指示所述终端设备具有反射QoS能力，所述第二接入网设备采用第一反射QoS方式向所述终端设备发送携带QFI的数据包。具体地，所述第二接入网设备从所述核心网设备接收数据包，并在所述数据包中携带QFI和反射QoS指示(reflective QoS indication，RQI)，通过空口向所述终端设备发送携带所述QFI的所述数据包。所述第二接入网设备从所述核心网设备接收数据包在所述第二接入网 设备对应的承载和分离承载上传输，即SCG承载和SCGsplit承载。
其中，所述第二接入网设备向所述终端设备发送的所述数据包中，可以用RQI指示所述终端设备进行反射QoS，所述终端设备可根据RQI在上行数据包中携带所述QFI；可以用数据无线承载(dataradiobearer，DRB)标识用于指示所述QFI对应的QoS流所对应的DBR，DRB可以是SCG承载和/或SCGsplit承载，所述终端设备可将所述上行数据包映射到所述QFI对应的QoS流所对应的DRB上。
在一种可能实现的方式中，所述反射QoS能力信息指示所述终端设备具有反射QoS能力，所述第二接入网设备采用第二反射QoS方式向所述终端设备发送携带QFI的数据包。具体地，所述第二接入网设备从所述核心网设备接收数据包，并在所述数据包中携带QFI，通过空口向所述终端设备发送携带所述QFI的所述数据包。所述第二接入网设备从所述核心网设备接收数据包在所述第二接入网设备对应的承载和分离承载上传输，即SCG承载和SCGsplit承载。
其中，所述第二接入网设备向所述终端设备发送的所述数据包中，可以用RQI指示所述终端设备进行反射QoS，所述终端设备可根据该RQI比特在上行数据包中携带所述QFI；可以用DBR标识指示所述QFI对应的QoS流所对应的DRB，DRB可以是SCG承载和/或SCGsplit承载，所述终端设备可将所述上行数据包映射到所述QFI对应的QoS流所对应的DRB上。
可选地，若所述反射QoS能力信息指示所述终端设备不具有反射QoS能力，则所述第二接入网设备向所述终端设备发送数据包不携带所述QFI。
在图5所示的实施例中，由第一接入网设备在获取终端设备的反射QoS能力指示信息的情况下，向第二接入网设备发送终端设备的反射QoS能力指示信息，可以实现主基站指示终端设备的反射QoS能力，使得双连接场景下的辅基站支持反射QoS，以便辅基站更好地进行数据传输。
作为一个可选的实施例，所述第一消息还携带第二反射QoS信息，图5所示的实施例还包括：
步骤S504：核心网设备向所述第一接入网设备发送第一反射QoS信息。相应地，所述第一接入网设备从核心网设备接收所述第一反射QoS信息；
其中，所述第一反射QoS信息用于指示所述终端设备进行反射QoS的QFI和所述QFI对应的RQA。
需要说明的是，所述QFI的数量不止一个，与QoS流的数量相关，即一个QoS流对应一个QFI，QFI用于标识不同的QoS流。所述QoS流为所述核心网设备传输至所述第一接入网设备的QoS流。
需要说明的是，在所述核心网设备传输至所述第一接入网设备的数据流具有QoS流特性的情况下，所述第一反射QoS信息包括所述QFI对应的RQA；在不具有QoS流特性的情况下，所述第一反射QoS信息不包括所述QFI对应的RQA。同理，所述第二反射QoS信息。
所述第一接入网设备在接收到所述第一反射QoS信息时，可按照步骤S503中所述的 两种方式向所述终端设备发送携带QFI的数据包。
需要说明的是，在所述第一消息还携带所述第二反射QoS信息的情况下，步骤S504在步骤S502之前执行。
上述可选的实施例对应的第一消息下某个QoS流的参数信息可参见表6：
表6
Figure PCTCN2018090830-appb-000002
其中，5QI为5GQoS指示(5GQoSindicator)，包括QFI。表2中“M”表示对应的信息为必要的，“O”表示对应的信息为可选的。其中，GBR QoS流信息(GBR QoSFlow Information)包括GFBR和MFBR。
上述可选的实施例1可以实现第一接入网设备向第二接入网设备传递QoS参数，包括QFI以及QFI对应的RQA。
作为一个可选的实施例，图5所示的实施例还包括：
步骤S505：所述第二接入网设备向所述第一接入网设备发送第一通知控制信息。相应地，所述第一接入网设备从所述第二接入网设备接收所述第一通知控制信息。
其中，所述第一通知控制信息指示所述第二接入网设备对应的承载或分离承载下的GBR QoS参数中不满足预设GBR QoS参数的缺陷QFI，以及所述缺陷QFI对应的不满足所述预设GBR QoS参数的GBR QoS参数。所述缺陷QFI的数量可能不止一个。通知控制信息可以是notificationcontrol。
其中，GBR QoS参数包括GFBR、MFBR、时延等等。对应地，所述预设GBR QoS参数包括预设GFBR、预设MFBR、预设时延等等。所述预设GBR QoS参数可由协议定义，即对于接入网设备、核心网设备、终端设备均是可知的；也可核心网设备定义，不作限定。所述预设GBR QoS参数的具体数值在本申请实施例中不作限定。
可以理解的是，辅基站在SCG承载或SCGsplit承载下的某个QFI对应的GBR QoS参数不满足所述预设GBR QoS参数时，将该QFI确定为缺陷QFI，并确定该QFI对应的GBR QoS参数中哪个参数不满足所述预设GBR QoS参数。某个QFI对应的GBR QoS参数中至 少一个参数不满足对应的预设参数时，可确定该QFI为缺陷QFI。
在一种可能实现的方式中，所述第二接入网设备可自主确定所述缺陷QFI，以及所述缺陷QFI对应的不满足所述预设GBR QoS参数的GBR QoS参数。
在一种可能实现的方式中，所述第二接入网设备可根据所述终端设备上报的缺陷结果确定所述缺陷QFI，以及所述缺陷QFI对应的不满足所述预设GBR QoS参数的GBR QoS参数。即由UE检测SCG承载或SCGsplit承载下的GBR QoS参数不满足所述预设GBR QoS参数，并在检测出缺陷QFI时，向辅基站上报缺陷QFI，以及缺陷QFI对应的QoS参数中哪个QoS参数不满足所述预设GBR QoS参数。所述上报消息可以为RRC消息，或者层二信令。
需要说明的是，步骤S505之前不一定需要进行步骤S502。步骤S505中的QoS参数可以是QoS流参数。
步骤S506a：所述第一接入网设备将所述缺陷QFI对应的GBR QoS流从所述第二接入网设备对应的承载或分离承载切换至所述第一接入网设备对应的承载或分离承载；
可以理解的是，主基站将所述缺陷QFI对应的GBR QoS流从SCG承载或SCGsplit承载切换至MCG承载或MCGsplit承载切换，由主基站对所述缺陷QFI对应的GBR QoS流进行传输。
步骤S506b：所述第一接入网设备向所述核心网设备发送第二通知控制信息。相应地，所述核心网设备接收所述第二通知控制信息。
其中，所述第二通知控制信息指示所述缺陷QFI，以及所述缺陷QFI对应的不满足所述预设GBR QoS参数的GBR QoS参数。
需要说明的是，若所述第一接入网设备对应的承载或分离承载下的GBR QoS参数不满足所述预设GBR QoS参数，则所述第一接入网设备可直接向所述核心网设备发送通知控制信息，指示缺陷QFI，以及缺陷QFI对应的不满足所述预设GBR QoS参数的GBR QoS参数。
步骤S507b：所述核心网设备对所述缺陷QFI对应的GBR QoS参数进行调整。
所述核心网设备对所述缺陷QFI对应的GBR QoS参数的方法在本申请实施例中不作限定。
上述可选的实施例，通过通知控制信息便于主基站和核心网设备进一步分析导致缺陷的原因，并进行相应调整。
根据前述方法，图6是本申请实施例提供的设备的示意图一，如图6所示，该设备可以为终端设备，也可以为芯片或电路，比如可设置于终端设备的芯片或电路。该终端设备可以对应上述方法中的终端设备。
该设备可以包括处理器110和存储器120。该存储器120用于存储指令，该处理器110用于执行该存储器120存储的指令，以实现图3对应的方法。
进一步的，该设备还可以包括、输入器140和输出器150。进一步的，该设备还可以进一步包括总线系统130，其中，处理器110、存储器120、输入器140和输出器150可以通过总线系统130相连。
处理器110用于执行该存储器120存储的指令，以控制输入器140接收信号，并控制输出器150发送信号，完成上述方法中终端设备的步骤。其中，输入器140和输出器150可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。
存储器120可以集成在处理器110中，也可以与所述处理器110分开设置。
作为一种实现方式，输入器140和输出器150的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器110可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的终端设备。即将实现处理器110，输入器140和输出器150功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器110，输入器140和输出器150的功能。
该设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
图7是本申请提供的一种终端设备的结构示意图。该终端设备可适用于图1所示出的系统中。为了便于说明，图7仅示出了终端设备的主要部件。如图7所示，终端设备包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行上述通信方法实施例中所描述的动作。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做输入输出口，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图7仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图7中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中， 由处理器执行软件程序以实现基带处理功能。
示例性的，在申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备的收发单元101，将具有处理功能的处理器视为终端设备的处理单元102。如图7所示，终端设备包括收发单元101和处理单元102。收发单元也可以称为输入输出口、收发机、收发装置等。可选的，可以将收发单元101中用于实现接收功能的器件视为接收单元，将收发单元101中用于实现发送功能的器件视为发送单元，即收发单元101包括接收单元和发送单元示例性的，接收单元也可以称为接收机、输入器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
根据前述方法，图8是本申请实施例提供的设备的示意图二，如图8所示，该设备可以为网络设备，也可以为芯片或电路，如可设置于网络设备内的芯片或电路。该网络设备对应上述方法中的网络设备。该设备可以包括处理器210和存储器220。该存储器220用于存储指令，该处理器210用于执行该存储器220存储的指令，以使所述设备实现前述图3对应的方法。
进一步的，该网络还可以包括输入器240和输出器250。再进一步的，该网络还可以包括总线系统230。
其中，处理器210、存储器220、输入器240和输出器250通过总线系统230相连，处理器210用于执行该存储器220存储的指令，以控制输入器240接收信号，并控制输出器250发送信号，完成上述方法中网络设备的步骤。其中，输入器240和输出器250可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器220可以集成在所述处理器210中，也可以与所述处理器210分开设置。
作为一种实现方式，输入器240和输出器250的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器210可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的网络设备。即将实现处理器210，输入器240和输出器250功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器210，输入器240和输出器250的功能。
所述设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
根据前述方法，图9是本申请实施例提供的一种网络设备的结构示意图，如可以为基站的结构示意图。如图9所示，该基站可应用于如图1所示的系统中。基站包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)201和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)202。所述RRU201可以称为收发单元、收发机、收发电路、或者输入输出口等等，其可以包括至少一个天线2011和射频单元2012。所述RRU201部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送上述实施例中所述的信令消息。所述BBU202部分主要用于进行基带处理，对基站进行控制等。所述RRU201与BBU202可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU202为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能， 如信道编码，复用，调制，扩频等等。例如所述BBU(处理单元)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程。
在一个示例中，所述BBU202可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网。所述BBU202还包括存储器2021和处理器2022。所述存储器2021用以存储必要的指令和数据。例如存储器2021存储上述实施例中的预设信息、码本等。所述处理器2022用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器2021和处理器2022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
根据本申请实施例提供的方法，本申请实施例还提供一种通信系统，其包括前述的网络设备和一个或多于一个终端设备。
应理解，在本申请实施例中，处理器可以是中央处理单元(CentralProcessingUnit，简称为“CPU”)，该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。
该总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
还应理解，本文中涉及的第一、第二、第三、第四以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(illustrativelogicalblock)和步骤(step)，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用 和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘SolidStateDisk(SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种通信方法，其特征在于，包括：
    第一接入网设备向第二接入网设备发送第一消息，所述第一消息携带所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数；
    所述第一接入网设备接收来自所述第二接入网设备的第二消息，所述第二消息是对所述第一消息的响应。
  2. 如权利要求1所述的方法，其特征在于，所述第一接入网设备对应的分离承载下的所述QFI对应的QoS参数包括GBR QoS参数，所述GBR QoS参数包括所述第二接入网设备需满足的保障流比特速率GFBR和所述第二接入网设备需满足的最大比特速率MFBR。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一消息还携带所述第一接入网设备对应的承载和/或分离承载与QoS参数之间的映射关系。
  4. 如权利要求3所述的方法，其特征在于，所述第一消息还携带待切换的QFI，以及所述待切换的QFI对应的QoS参数。
  5. 如权利要求1-4任一项所述的方法，其特征在于，所述第二消息携带所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
  6. 如权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入网设备接收来自所述第二接入网设备第三消息，所述第三消息携带所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
  7. 如权利要求5或6任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入网设备根据所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输。
  8. 如权利要求5或6所述的方法，其特征在于，所述第二接入网设备对应的分离承载下的所述QFI对应的QoS参数包括GBR QoS参数，所述GBR QoS参数包括所述第一接入网设备需满足的GFBR和所述第一接入网设备需满足的MFBR。
  9. 一种通信方法，其特征在于，包括：
    第二接入网设备接收来自第一接入网设备的第一消息，所述第一消息携带所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数；
    所述第二接入网设备向所述第一接入网设备发送第二消息，所述第二消息是对所述第一消息的响应。
  10. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    所述第二接入网设备根据所述第一接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数进行数据传输。
  11. 如权利要求9或10所述的方法，其特征在于，所述第一接入网设备对应的分离承载下的所述QFI对应的QoS参数包括GBR QoS参数，所述GBR QoS参数包括所述第二接入网设备的需满足的GFBR和所述第二接入网设备需满足的MFBR。
  12. 如权利要求9-11任一项所述的方法，其特征在于，所述第一消息还携带所述第一接入网对应的承载和/或分离承载与QoS参数之间的映射关系；
    所述方法还包括：
    所述第二接入网设备通过所述第一接入网对应的承载或分离承载与QoS参数之间的映射关系传输从所述第一接入网设备接收的QoS流。
  13. 如权利要求12所述的方法，其特征在于，所述第一消息还携带待切换的QFI，以及所述待切换的QFI对应的QoS参数；
    所述方法还包括：
    所述第二接入网设备根据所述待切换的QFI和所述待切换的QFI对应的QoS参数建立所述第二接入网设备对应的承载，以及所述第二接入网设备对应的承载与所述待切换的QFI对应的QoS参数之间的映射关系。
  14. 如权利要求9-13任一项所述的方法，其特征在于，所述方法还包括：
    所述第二接入网设备向所述第一接入网设备发送第二消息，所述第二消息是对所述第一消息的响应，所述第二消息包括所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
  15. 如权利要求9-13任一项所述的方法，其特征在于，所述方法还包括：
    所述第二接入网设备确定建立所述第二接入网设备对应的分离承载；
    所述第二接入网设备向所述第一接入网设备发送第三消息，所述第三消息包括所述第二接入网设备对应的分离承载下的QFI和所述QFI对应的QoS参数。
  16. 如权利要求14或15所述的方法，其特征在于，所述第二接入网设备对应的分离承载下的所述QFI对应的QoS参数包括GBR QoS参数，所述GBR QoS参数包括所述第一接入网设备需满足的GFBR和所述第一接入网设备需满足的MFBR。
  17. 一种装置，其特征在于，包括处理器和存储器，
    所述存储器用于存储指令，
    所述处理器用于执行所述存储器中的指令，使得如权利要求1-16任意一项所述的方法被实现。
  18. 一种计算机可读存储介质，其特征在于，包括计算机程序，当其在计算机上运行时，使得如权利要求1-16任意一项所述的方法被实现。
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