WO2018082602A1 - 切换方法及装置 - Google Patents

切换方法及装置 Download PDF

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Publication number
WO2018082602A1
WO2018082602A1 PCT/CN2017/109081 CN2017109081W WO2018082602A1 WO 2018082602 A1 WO2018082602 A1 WO 2018082602A1 CN 2017109081 W CN2017109081 W CN 2017109081W WO 2018082602 A1 WO2018082602 A1 WO 2018082602A1
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Prior art keywords
drb
base station
information
configuration information
target base
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PCT/CN2017/109081
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English (en)
French (fr)
Inventor
方建民
施小娟
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中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to KR1020197015780A priority Critical patent/KR102221747B1/ko
Priority to JP2019522886A priority patent/JP7123920B2/ja
Priority to EP23197249.8A priority patent/EP4287701A3/en
Priority to AU2017352948A priority patent/AU2017352948B2/en
Priority to EP17868268.8A priority patent/EP3537765A4/en
Publication of WO2018082602A1 publication Critical patent/WO2018082602A1/zh
Priority to US16/402,142 priority patent/US10805849B2/en
Priority to US17/068,589 priority patent/US11463928B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0044—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of quality context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—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
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point

Definitions

  • the present disclosure relates to the field of communications, for example, to a handover method and apparatus.
  • FIG. 1 is a schematic structural diagram of a 4G system, which will have the same data of Quality of Service (QoS) requirements.
  • the traffic is aggregated into bearers, and the processing of QoS by the AN (Access Network) and the Core Network (CN) is performed by bearer.
  • the access network includes an evolved Node B (eNB) and a User Equipment (UE).
  • eNB evolved Node B
  • UE User Equipment
  • a radio bearer on the air interface between the eNB and the UE, that is, the network side bearer and the radio bearer are 1:1.
  • QoS parameters include: QoS Class Identifier (QCI) and Allocation and Retention Priority (ARP).
  • QCI includes: bearer type (Guaranteed Bit Rate (GBR) or non-guaranteed bit rate (non-GBR)), priority, packet delay budget, and packet error rate (Packet Error) Rate).
  • GRR Guard Bit Rate
  • non-GBR non-guaranteed bit rate
  • Packet Error Packet Error Rate
  • the QoS parameters include: Aggregate Maximum Bit Rate (AMBR).
  • the AMBR includes: a non-GBR bearer aggregation maximum bit rate (UE-AMBR) of the UE and a non-GBR bearer aggregation maximum bit rate (APN-AMBR) corresponding to an Access Point Name (APN).
  • UE-AMBR non-GBR bearer aggregation maximum bit rate
  • API-AMBR non-GBR bearer aggregation maximum bit rate
  • the QoS parameters include: Maximum Bit Rate (MBR) and GBR.
  • the QoS policy is controlled by the core network.
  • the base station passively accepts or rejects the QoS parameters.
  • the base station cannot adjust the QoS parameters according to the real-time wireless load, and the core network cannot know the current wireless load in real time. Therefore, the core network is difficult to make reasonable.
  • the Policy and Charging Rule Function (PCRF) in the core network ensures that the UE is in a packet data network. (Packet Data Network, PDN) link does not appear in the same QoS bearer.
  • PDN Packet Data Network
  • the bearer of the same QoS in the first PDN link it may happen that one UE has two network side bearers with the same QoS. Since the radio bearer and the network side bearer are 1:1 corresponding, there are multiple radio bearers, resulting in waste of radio resources.
  • FIG. 2 is a schematic diagram of the structure of the 5G system.
  • 5G mobile communication will have 1000 times of network throughput, 100 times of device connection number and 10
  • the demand for double low latency is increasing. This requires the 5G system to have a new and better QoS mechanism to a certain extent.
  • the 5G system will adopt a unified structure to support enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and Ultra Reliable and Low Latency Communication (URLLC). ) and other services.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC Ultra Reliable and Low Latency Communication
  • the core network, base station and UE will all undergo a big evolution.
  • the air interface of this type of base station is closer to the air interface of the base station (ie, eNB) in the 4G system, and the type of base station can successfully connect to the 5G core through its air interface.
  • the network may be referred to as an evolved eNB.
  • a 5G base station may also have a direct interface, which is called an Xn interface, and an Xn interface may also exist between the evolved eNBs or between the evolved eNBs and the 5G base stations.
  • an NG interface Similar to the S1 interface between the eNB and the core network in the 4G system, in the 5G system, the interface between the 5G base station and the 5G core network is called an NG interface, and the interface between the evolved eNB and the 5G core network is also an NG interface.
  • the evolved eNB can also successfully connect to the 5G core network, since the evolved eNB is closer to the base station (eNB) in the 4G system on the air interface, the radio resource control (RRC) protocol of the evolved eNB is closer to the eNB.
  • the RRC will have a significant difference from the RRC of the 5G base station. Therefore, the evolved eNB and the 5G base station will not be able to identify the RRC protocol of the other party.
  • a handover method and device can solve the problem that the QoS mechanism adopted by the core network and the access network is not uniform when the base station switches.
  • a switching method includes:
  • the source base station When the serving base station of the user equipment UE switches from the source base station to the target base station, the source base station sends a handover request message to the target base station, where the handover request message carries one of the source base station configured for the UE or Multiple data radio bearers DRB information, and one or more stream service quality information configured by the core network side for the UE;
  • the source base station receives the handover request acknowledgement message sent by the target base station, where the handover request acknowledgement message carries the first DRB configuration information generated by the target base station according to the handover request message for the UE;
  • the source base station sends a radio resource control RRC connection reconfiguration message carrying the first DRB configuration information to the UE, where the first DRB configuration information is used by the UE to configure a radio resource.
  • the flow service quality information includes: identifier information used to indicate the flow service quality information and a quality of service QoS rule, where the identifier information includes a flow identifier ID or a quality of service identifier QoS ID.
  • the QoS rule includes at least one of the following: a packet delay budget PDB, a packet error rate PER, a priority, a guaranteed stream bit rate, a maximum stream bit rate, an allocation and a reservation priority, and a maximum bit of each UE. Rate, admission control, flow priority level FPL, packet priority indication PPI, packet drop priority indication PDPI, quality of experience QoE level, and reflected QoS indication.
  • each DRB information includes: an ID ID of the DRB,
  • Each of the DRB information further includes: one of a DRB associated with the DRB ID and one of the DRB-associated QoS IDs of the DRB ID, and the second DRB configured by the source base station for the DRB.
  • the configuration information where the second DRB configuration information includes a configuration parameter of a packet data convergence protocol PDCP, a radio link control RLC, and a logical channel configured by the source base station for the DRB.
  • the source base station when the first DRB configuration information received by the source base station includes a flow ID or a QoS ID that is not associated with any one of the DRB information, the source base station sends the location to the UE.
  • the method further includes:
  • the source base station sends the flow ID or QoS ID to which the DRB is not associated with any of the DRB information to the core network.
  • a switching method includes:
  • the target base station When the serving base station of the user equipment UE switches from the source base station to the target base station, the target base station receives the handover request message sent by the source base station, where the handover request message carries the source base station configured for the UE.
  • the target base station sends a handover request acknowledgement message carrying the first DRB configuration information to the source base station.
  • the generating, by the target base station, the first DRB configuration information for the UE according to the handover request message includes:
  • the target base station puts the DRB configuration information corresponding to the first DRB that is agreed to be established in the DRB information into the DRB addition modification list, and puts the DRB identification ID corresponding to the second DRB that is not agreed to in the DRB information into the DRB release list;
  • the target base station determines the DRB addition modification list and the DRB release list as the first DRB configuration information.
  • each DRB configuration information in the DRB addition modification list includes a first DRB ID, and one or more of the following: one or more flow IDs associated with the first DRB corresponding to the first DRB ID.
  • QoS ID QoS ID Packet Data Convergence Protocol PDCP Configuration Information
  • Radio Link RLC Configuration Information and Logical Channel Configuration Information.
  • the one or more flow IDs or QoS IDs associated with the first DRB corresponding to the first DRB ID include: the target base station changes an association between the first DRB and one or more flow IDs or QoS IDs After the relationship, the first DRB is re-associated with one or more flow IDs or QoS IDs.
  • the target base station when the first DRB configuration information includes a flow ID or a QoS ID that is not associated with any one of the DRB information, the target base station, after the UE successfully accesses the target base station, The method further includes:
  • a switching method includes:
  • the UE When the serving base station of the user equipment UE is handed over from the source base station to the target base station, the UE receives the radio resource control RRC connection reconfiguration message that is sent by the source base station and carries the DRB configuration information, where the DRB configuration information is
  • the target base station is generated by the UE according to the handover request message, and the handover request message is sent by the source base station to the target base station, and the handover request message carries one of the source base station configured for the UE or Multiple data radio bearers DRB information, and one or more stream quality of service information configured by the core network side for the UE;
  • the UE configures a radio resource according to the DRB configuration information in the RRC connection reconfiguration message.
  • the DRB configuration information includes: a DRB add modification list and a DRB release list.
  • Each tuple in the DRB addition modification list includes a first DRB identification ID, and one or more of the following: one or more flow identification IDs or quality of service identification QoS associated with the first DRB corresponding to the first DRB ID ID, packet data convergence protocol PDCP configuration information, radio link RLC configuration information, and logical channel configuration information, wherein the first DRB is a DRB that the target base station agrees to establish in the DRB information;
  • Each of the tuples in the DRB release list includes a second DRB ID, where the second DRB corresponding to the second DRB ID is a DRB that the target base station does not agree to establish in the DRB information.
  • configuring, by the UE, the radio resource according to the DRB configuration information in the RRC connection reconfiguration message includes:
  • the UE performs radio resource configuration on the first DRB according to each tuple information in the DRB addition modification list;
  • the performing radio resource configuration on the first DRB includes one or more of the following:
  • a switching device applied to a source base station, includes:
  • a first sending module configured to: when the serving base station of the user equipment UE switches from the source base station to the target base station, send a handover request message to the target base station, where the handover request message carries the source base station to configure the UE One or more data radio bearers DRB information, and one or more stream quality of service information configured by the core network side for the UE;
  • a receiving module configured to receive a handover request acknowledgement message sent by the target base station, where the handover request acknowledgement message carries first DRB configuration information generated by the target base station according to the handover request message for the UE;
  • the second sending module is configured to send, to the UE, a radio resource control RRC connection reconfiguration message that carries the first DRB configuration information, where the first DRB configuration information is used by the UE to configure a radio resource.
  • the flow service quality information includes: identifier information used to indicate the flow service quality information and a quality of service QoS rule, where the identifier information includes a flow identifier ID or a quality of service identifier QoS ID.
  • a switching device applied to a target base station, comprising:
  • a receiving module configured to receive a handover request message sent by the source base station when the serving base station of the user equipment UE switches from the source base station to the target base station, where the handover request message carries the source base station configured for the UE One or more data radio bearers DRB information, and one or more stream quality of service information configured by the core network side for the UE;
  • Generating a module configured to generate first DRB configuration information for the UE according to the handover request message
  • the sending module is configured to send, to the source base station, a handover request acknowledgement message carrying the first DRB configuration information.
  • the generating module includes:
  • the configuration unit is configured to put the DRB configuration information corresponding to the first DRB that is agreed to be established in the DRB information into the DRB addition modification list, and put the DRB identification ID corresponding to the second DRB that is not agreed to in the DRB information into the DRB release list;
  • a determining unit configured to determine the DRB addition modification list and the DRB release list as the first DRB configuration information.
  • a switching device applied to a user equipment UE, includes:
  • the receiving module is configured to receive, when the serving base station of the UE switches from the source base station to the target base station, the radio resource control RRC connection reconfiguration message that is sent by the source base station and carries the DRB configuration information, where the DRB configuration information is
  • the target base station is generated by the UE according to the handover request message, and the handover request message is sent by the source base station to the target base station, and the handover request message carries the source base station configured for the UE.
  • a configuration module configured to configure the radio resource according to the DRB configuration information in the RRC connection reconfiguration message.
  • the DRB configuration information includes: a DRB add modification list and a DRB release list.
  • Each tuple in the DRB addition modification list includes a first DRB identification ID, and one or more of the following: one or more flow identification IDs or quality of service identification QoS associated with the first DRB corresponding to the first DRB ID ID, packet data convergence protocol PDCP configuration information, radio link RLC configuration information, and logical channel configuration information, wherein the first DRB is a DRB that the target base station agrees to establish in the DRB information;
  • Each of the tuples in the DRB release list includes a second DRB ID, where the second DRB corresponding to the second DRB ID is a DRB that the target base station does not agree to establish in the DRB information.
  • a computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above.
  • a source base station includes:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being At least one processor is operative to cause the at least one processor to perform the method performed by the source base station described above.
  • a target base station comprising:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method performed by the target base station.
  • a user equipment comprising:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method performed by the user equipment described above.
  • Figure 1 is a schematic structural view of a 4G system
  • FIG. 2 is a schematic structural view of a 5G system
  • FIG. 3 is a flow chart of a handover method, in accordance with an embodiment
  • FIG. 5 is a flowchart of still another switching method according to an embodiment
  • FIG. 6 is a structural block diagram of a switching device according to an embodiment
  • FIG. 7 is a structural block diagram of another switching device according to an embodiment.
  • FIG. 8 is a structural block diagram of still another switching device according to an embodiment
  • FIG. 9 is a flow chart of a handover method of an embodiment
  • FIG. 10 is a schematic structural diagram of hardware of a source base station according to an embodiment
  • FIG. 11 is a schematic diagram showing the hardware structure of a target base station according to an embodiment
  • FIG. 12 is a schematic diagram showing the hardware structure of a user equipment according to an embodiment.
  • FIG. 3 is a flowchart of a handover method according to an embodiment.
  • the method provided in this embodiment may be implemented in the network structure shown in FIG. 1 or FIG. 2 above.
  • the execution body of the method in this embodiment may be a base station, such as a source base station.
  • the method includes the following steps.
  • step 302 when the serving base station of the user equipment UE switches from the source base station to the target base station, the source base station sends a handover request message to the target base station, where the handover request message carries one or more data radio bearers configured by the source base station for the UE ( Data Radio Bearer (DRB) information, and one or more Flow Quality of Service (Flow QoS) information configured by the core network side for the UE.
  • DRB Data Radio Bearer
  • Flow QoS Flow Quality of Service
  • the source base station receives the handover request acknowledgement message sent by the target base station, where the handover request acknowledgement message carries the first DRB configuration information generated by the target base station for the UE according to the handover request message.
  • the source base station sends an RRC connection reconfiguration message carrying the first DRB configuration information to the UE, where the first DRB configuration information is used by the UE to configure the radio resource.
  • the foregoing method can solve the problem that the QoS mechanism adopted by the core network and the access network is not uniform when the base station is switched.
  • the foregoing method can implement guaranteed QoS on the Xn interface between the evolved eNB and the 5G base station (eg, guarantee Switching of QoS without dropping packets and not sending packets repeatedly.
  • the flow QoS information includes: identifier information for indicating flow service quality information and a QoS rule, where the identifier information includes a flow identifier (Identifier, ID) or a QoS ID.
  • identifier information includes a flow identifier (Identifier, ID) or a QoS ID.
  • the QoS rule includes at least one of the following: a Packet Delay Budget (PDB), a Packet Error Rate (PER), a priority, and a Guaranteed Flow Bit Rate. , Maximum Flow Bit Rate, Allocation and Retention Priority (ARP), Per UE Maximum Bit Rate, Admission Control, Flow Priority Flow Priority Level (FPL), Packet Priority Instruction (PPI), Packet Discard Priority Indicator (PDPI), Quality of Experience (QoE) Level (QoE Level) And reflection QoS indication (Reflective QoS Indication).
  • PDB Packet Delay Budget
  • PER Packet Error Rate
  • ARP Average Power
  • PPI Packet Priority Instruction
  • PDPI Packet Discard Priority Indicator
  • QoE Quality of Experience
  • QoE Level Quality of Experience
  • reflection QoS indication Reflective QoS Indication
  • the reflected QoS indicator is used to indicate that the uplink QoS information is determined according to the downlink QoS information.
  • the QoS rule may not include the upstream QoS information.
  • each DRB information includes: a DRB ID
  • each DRB information further includes: one of a DRB associated flow (Flow) ID corresponding to the DRB ID and a DRB associated QoS ID corresponding to the DRB ID, and a source
  • the second DRB configuration information configured by the base station for the DRB.
  • the second DRB configuration information includes configuration parameters configured by the source base station for the DRB: Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and logical channel configuration parameters.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • the source base station when the first DRB configuration information received by the source base station includes a flow ID or a QoS ID that is not associated with any of the DRBs corresponding to all the DRB IDs in all the DRB information, the source base station sends the RRC to the UE.
  • the method further includes: the source base station transmitting, to the core network, a flow ID or a QoS ID that is not associated with any of the DRBs corresponding to all DRB IDs in all the DRB information.
  • FIG. 4 is a flowchart of a handover method according to an embodiment. As shown in FIG. 4, the flow includes the following steps.
  • step 402 when the serving base station of the user equipment UE switches from the source base station to the target base station, the target base station receives the handover request message sent by the source base station, where the handover request message carries one or more data radio bearers configured by the source base station for the UE.
  • the DRB information and one or more stream quality of service information configured by the core network side for the UE.
  • step 404 the target base station generates first DRB configuration information for the UE according to the handover request message.
  • step 406 the target base station sends a handover request acknowledgement message carrying the first DRB configuration information to the source base station.
  • the generating, by the target base station, the first DRB configuration information for the UE according to the handover request message includes:
  • the target base station puts the DRB configuration information corresponding to the first DRB in the established DRB information into the DRB addition modification list, and puts the DRB ID corresponding to the second DRB in the DRB information that is not agreed to be established into the DRB release list;
  • the target base station determines the DRB addition modification list and the DRB release list as the first DRB configuration letter. interest.
  • each DRB configuration information in the DRB addition modification list includes a first DRB ID, and one or more of the following: one or more flow IDs or QoS IDs, packet data associated with the DRB corresponding to the first DRB ID.
  • the one or more flow IDs and QoS IDs associated with the first DRB corresponding to the first DRB ID include: changing, by the target base station, the first DRB corresponding to the first DRB ID and one or more flow IDs or QoS IDs. After the association, the first DRB corresponding to the first DRB ID is re-associated with one or more flow IDs or QoS IDs.
  • the method when the DRB configuration information has a flow ID or a QoS ID that is not associated with any of the DRBs, the target base station after the UE successfully accesses the target base station, the method further includes: The flow ID or QoS ID information that is not associated with any of the DRB information is sent to the core network.
  • FIG. 5 is a flowchart of a handover method according to an embodiment. As shown in FIG. 5, the flow includes the following steps.
  • step 502 when the serving base station of the user equipment UE switches from the source base station to the target base station, the UE receives an RRC connection reconfiguration message that is sent by the source base station and carries the DRB configuration information, where the DRB configuration information is the target base station according to the handover request.
  • the message is generated by the UE, and the handover request message is sent by the source base station to the target base station, and the handover request message carries one or more data radio bearers DRB configured by the source base station for the UE.
  • Information, and one or more stream quality of service information configured by the core network side for the UE.
  • step 504 the UE configures the radio resource configuration according to the DRB configuration information in the RRC connection reconfiguration message.
  • the DRB configuration information includes: a DRB add modification list and a DRB release list, where each tuple in the DRB add modification list includes a first DRB ID, and one or more of the following: the first corresponding to the first DRB ID One or more flow IDs or QoS IDs, PDCP configuration information, RLC configuration information, and logical channel configuration information associated with the DRB, wherein the first DRB is a DRB agreed to by the target base station in the DRB information, and each of the DRB release lists
  • the tuple includes a second DRB ID, where the second DRB corresponding to the second DRB ID is a DRB that the target base station does not agree to establish in the DRB information.
  • the performing radio resource configuration by the UE according to the DRB configuration information in the RRC connection reconfiguration message includes: the UE performing radio resource configuration on the first DRB according to each tuple information in the DRB addition modification list, according to the DRB release list.
  • the second DRB ID in each tuple information releases the radio resource of the second DRB corresponding to the second DRB ID.
  • performing radio resource configuration on the first DRB includes one or more of the following:
  • the association relationship between the first DRB and the flow ID or QoS ID is reconfigured according to the flow ID or QoS ID associated with the first DRB.
  • the method of the foregoing embodiment may be implemented by means of software plus a general hardware platform, or may be implemented by hardware.
  • the technical solution in the above embodiments may be embodied in the form of a software product stored in a non-transitory storage medium (such as read-only memory (ROM), random access memory (Random-Access). Memory, RAM, or CD-ROM, including one or more instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method in the above embodiment, the computer software Products can also be stored on transitory storage media.
  • ROM read-only memory
  • RAM random access memory
  • CD-ROM compact disc read-only memory
  • a terminal device which may be a mobile phone, a computer, a server, or a network device, etc.
  • module can implement at least one of software and hardware for a predetermined function.
  • FIG. 6 is a structural block diagram of a switching apparatus according to an embodiment.
  • the switching apparatus may be applied to a source base station.
  • the apparatus includes: a first sending module 60, a receiving module 62, and a second sending module 64. .
  • the first sending module 60 is configured to send a handover request message to the target base station when the serving base station of the user equipment UE switches from the source base station to the target base station, where the handover request message carries one or more data radio bearers configured by the source base station for the UE.
  • the DRB information and one or more stream quality of service information configured by the core network side for the UE.
  • the receiving module 62 is configured to receive a handover request acknowledgement message sent by the target base station, where the handover request acknowledgement message carries the first DRB configuration information generated by the target base station for the UE according to the handover request message.
  • the second sending module 64 is configured to send a radio resource control RRC connection reconfiguration message carrying the first DRB configuration information to the UE, where the first DRB configuration information is used by the UE to configure the radio resource.
  • the flow service quality information includes: identifier information used to indicate flow service quality information and a quality of service QoS rule, where the identifier information includes a flow ID or a QoS ID.
  • FIG. 7 is a structural block diagram of a switching apparatus applicable to a target base station. As shown in FIG. 7, the apparatus includes: a receiving module 70, a generating module 72, and a returning module 74, according to an embodiment.
  • the receiving module 70 is configured to: when the serving base station of the user equipment UE switches from the source base station to the target base station, the receiving target base station sends a handover request message, where the handover request message carries one or more data radio bearer DRB information configured by the source base station for the UE. And one or more stream service quality information configured by the core network side for the UE.
  • the generating module 72 is configured to generate first DRB configuration information for the UE according to the handover request message.
  • the sending module 74 is configured to send a handover request acknowledgement message carrying the first DRB configuration information to the source base station.
  • the generating module 72 includes: a configuration unit and a determining unit.
  • the configuration unit is configured to put the DRB configuration information corresponding to the first DRB that is agreed to be established in the DRB information into the DRB addition modification list, and put the DRB identification ID corresponding to the second DRB that is not agreed to in the DRB information into the DRB release list.
  • the determining unit is configured to determine the DRB addition modification list and the DRB release list as the first DRB configuration information.
  • FIG. 8 is a structural block diagram of a switching apparatus applicable to a UE. As shown in FIG. 8, the apparatus includes: a receiving module 80 and a configuration module 82, according to an embodiment.
  • the receiving module 80 is configured to: when the serving base station of the UE switches from the source base station to the target base station, receive the radio resource control RRC connection reconfiguration message that is sent by the source base station and carries the DRB configuration information, where the DRB configuration information is the target base station according to the handover request message. Generated for the UE, and the handover request message is sent by the source base station to the target base station, and the handover request message carries one of the source base station configured for the UE or The plurality of data radio bears the DRB information and one or more stream quality of service information configured by the core network side for the UE.
  • the configuration module 82 is configured to configure the radio resource according to the DRB configuration information in the RRC Connection Reconfiguration message.
  • the DRB configuration information of the UE in the target base station includes: a DRB add modification list and a DRB release list, where each tuple in the DRB add modification list includes a first DRB identifier ID, and one or more of the following: One or more flow IDs or QoS IDs associated with the first DRB corresponding to the DRB ID, packet data convergence protocol PDCP configuration information, radio link RLC configuration information, and logical channel configuration information, where the first DRB is in the DRB information The target base station agrees to the established DRB.
  • Each of the tuples in the DRB release list includes a second DRB ID, where the second DRB corresponding to the second DRB ID is a DRB that the target base station does not agree to establish in the DRB information.
  • multiple modules may be implemented by software or hardware.
  • multiple modules are all located in the same processor, or multiple modules are respectively located in multiple processors in any combination.
  • An embodiment provides a method for guaranteeing Xn interface switching of QoS, the method comprising:
  • the source base station sends a handover request message to the target base station, where the handover request message carries the DRB information of the one or more access network side source base stations (that is, the DRB information configured by the source base station for the UE in the foregoing embodiment), and the core network side. Configuring one or more flow service quality information for the UE;
  • the target base station sends a handover request acknowledgement message to the source base station, where the handover request acknowledgement message carries the first DRB configuration information; the source base station receives the handover request acknowledgement message, and sends an RRC connection reconfiguration message to the UE, where the RRC connection
  • the reconfiguration message carries the DRB configuration information of the target base station; and the UE receives the RRC connection reconfiguration message, and performs a configuration operation according to the first DRB configuration information.
  • FIG. 9 is a flowchart of a handover method in an embodiment.
  • the target base station agrees to establish a DRB in all DRB information, and the method includes the following steps.
  • step 1 the source base station sends a handover request message to the target base station, where the handover request message carries One or more DRB information with access network side source base stations, and one or more stream quality of service information on the core network side.
  • the target base station receives the handover request message, agrees to the handover request, and agrees to establish a DRB in all DRB information, and generates DRB configuration information of the target base station according to the information carried in the handover request message, where the target base station
  • the DRB configuration information includes a DRB add modification list.
  • Each item in the DRB addition modification list includes a DRB ID, one or more flow IDs or QoS IDs associated with the DRB corresponding to the DRB ID, and one or more of the following: PDCP configuration information, RLC configuration information, and logical channels. Configuration information.
  • step 3 the target base station sends a handover request acknowledgement message to the source base station, where the handover request acknowledgement message carries the DRB configuration information of the target base station and the DRB add modification list (each of the DRB add modification list includes the DRB ID, the DRB One or more Flow IDs or QoS IDs associated with the DRB corresponding to the ID).
  • step 4 the source base station receives the handover request acknowledgement message, and sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message carries the DRB configuration information generated by the target base station for the UE.
  • step 5 the UE receives the RRC connection reconfiguration message, and performs at least one of the following according to the DRB corresponding to each item in the DRB addition modification list in the DRB configuration information: re-establishing the PDCP, re-establishing the RLC, and according to the The PDCP configuration information reconfigures the PDCP, reconfigures the RLC according to the RLC configuration information, and reconfigures the logical channel according to the logical channel configuration information.
  • An embodiment provides a handover method.
  • the target base station agrees to establish a part of the DRBs in the multiple DRB information.
  • the method in this embodiment includes the following steps.
  • step 1 the source base station sends a handover request message to the target base station, where the handover request message carries multiple DRB information of the source base station of the access network side and one or more stream service quality information of the core network side.
  • the target base station receives the handover request message, agrees to the handover request, and agrees to establish a part of the DRBs in the multiple DRB information, and generates first DRB configuration information according to the information carried in the handover request message, where the A configuration information includes a DRB add modification list and a DRB release list.
  • the target base station puts the DRB configuration information corresponding to the first DRB that is agreed to be established in the DRB information into the DRB addition modification list, and puts the DRB identification ID corresponding to the second DRB that is not agreed to in the DRB information into the DRB release list.
  • the DRB addition modification list includes DRB configuration information corresponding to the first DRB that the target base station agrees to establish in the multiple DRB information, and each DRB configuration information includes a first DRB ID and a first DRB association corresponding to the first DRB ID. Or multiple flow IDs or QoS IDs, and one or more of the following: PDCP configuration information, RLC configuration information, and logical channel configuration information.
  • the target base station sends a handover request acknowledgement message to the source base station, where the handover request acknowledgement message carries the first DRB configuration information, and the first list of DRBs agreed to be established, that is, the DRB addition modification list (each of which includes the first The DRB ID, one or more Flow IDs or QoS IDs associated with the DRB corresponding to the first DRB ID, and a second list of DRBs that have not agreed to be established, that is, a DRB release list (each of which includes a second DRB ID).
  • the DRB addition modification list each of which includes the first The DRB ID, one or more Flow IDs or QoS IDs associated with the DRB corresponding to the first DRB ID
  • a second list of DRBs that have not agreed to be established, that is, a DRB release list (each of which includes a second DRB ID).
  • step 4 the source base station receives the handover request acknowledgement message, and sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message carries the first DRB configuration information.
  • step 5 the UE receives the RRC connection reconfiguration message, and performs at least one of the following operations according to the DRB corresponding to each item in the DRB adding modification list in the first DRB configuration information: re-establishing the PDCP, Re-establishing the RLC, reconfiguring the PDCP according to the PDCP configuration information, reconfiguring the RLC according to the RLC configuration information, and reconfiguring the logical channel according to the logical channel configuration information, and the UE releases each DRB ID in the list according to the DRB, Release the DRB corresponding to each DRB ID in the DRB release list.
  • An embodiment provides a handover method.
  • the target base station in this embodiment agrees to establish all DRBs in all DBR information, and changes the association between the DRB and the QoS ID.
  • the method includes the following steps.
  • step 1 the source base station sends a handover request message to the target base station, where the handover request message carries one or more DRB information of the source base station of the access network side and one or more stream service quality information of the core network side.
  • the target base station receives the handover request message, agrees to the handover request, and agrees to establish the DRB in all the DBR information, and changes the association between the DRB and the QoS ID (for example, there are two DRBs in the handover request message, DRB1) And DRB2, DRB1 is associated with QoS ID 1, QoS ID 2, DRB2 is associated with QoS ID 3, QoS ID 4, DRB1 is associated with QoS ID 2 after change, and DRB2 is associated with QoS ID 1, QoS ID 3, and QoS ID 4) Generating the first DRB configuration information according to the information carried in the handover request message and the relationship between the changed DRB and the QoS ID, and the target base station will agree
  • the DRB configuration information corresponding to the DRB in the established DRB information is placed in the DRB addition modification list, where the first DRB configuration information includes a DRB addition modification list, and each DRB configuration information in the list includes a DRB ID, a change, and a Q
  • the target base station sends a handover request acknowledgement message to the source base station, where the handover request acknowledgement message carries the first DRB configuration information and the DRB add modification list agreed to be established (the DRB add modification list includes a DRB ID, One or more QoS IDs associated with the DRB corresponding to the DRB ID).
  • step 4 the source base station receives the handover request acknowledgement message, and sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message carries the DRB configuration information of the target base station.
  • step 5 the UE receives the RRC connection reconfiguration message, and performs one or more of the following operations according to the DRB corresponding to each item in the DRB adding modification list in the first DRB configuration information: Reestablishing the PDCP, reestablishing the RLC, reconfiguring the PDCP according to the PDCP configuration information, reconfiguring the RLC according to the RLC configuration information, and reconfiguring the logical channel according to the logical channel configuration information, and reconfiguring the DRB according to the first DRB configuration by the UE Relationship with QoS ID.
  • An embodiment provides a handover method.
  • the target base station in this embodiment agrees to establish a part of DRBs in multiple DRB information, and changes the association between DRB and QoS.
  • the method includes the following steps.
  • step 1 the source base station sends a handover request message to the target base station, where the handover request message carries multiple DRB information of the source base station of the access network side and one or more stream service quality information of the core network side.
  • the target base station receives the handover request message, agrees to the handover request, and agrees to establish a part of the DRBs of the multiple DRB information, and changes the association between the DRB and the QoS ID (for example, there are three DRBs in the handover request message, DRB1, DRB2 and DRB3, DRB1 is associated with QoS ID 1, QoS ID 2, DRB2 is associated with QoS ID 3, DRB3 is associated with QoS ID 4, QoS ID 5, and the target base station only agrees to establish DRB1 and DRB2, and the changed DRB1 and QoS ID 1.
  • the first DRB configuration information includes a DRB add modification list and a DRB release list.
  • the target base station puts the DRB configuration information corresponding to the first DRB that is agreed to be established in the DRB information into the DRB addition modification list, and puts the DRB identification ID corresponding to the second DRB that is not agreed to in the DRB information into the DRB release list.
  • the DRB addition modification list includes the DRB configuration information corresponding to the first DRB that the target base station agrees to establish in the multiple DRB information, and each DRB configuration information includes the first DRB ID and the DRB change association relationship corresponding to the first DRB ID.
  • the DRB release list includes all DRB IDs corresponding to DRBs that have not agreed to be established.
  • step 3 the target base station sends a handover request acknowledgement message to the source base station, where the handover request acknowledgement message carries the first DRB configuration information, and the DRB addition modification list of the DRB that is agreed to be established (each item of the DRB addition modification list includes the first a DRB ID, one or more QoS IDs associated with the DRB corresponding to the first DRB ID, a DRB release list of the DRB that does not agree to be established (each item in the DRB release list includes a second DRB ID), and includes not included A list of QoS IDs of QoS IDs to which any of the DRBs are associated.
  • step 4 the source base station receives the handover request acknowledgement message, and sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message carries the DRB configuration information of the target base station.
  • the source base station sends the QoS ID list to the core network (the source base station may also send the QoS ID list to the core network after the UE successfully accesses the target base station), so that the core network performs relevant response. Measures.
  • step 5 the UE receives the RRC connection reconfiguration message, and performs one or more of the following operations according to the DRB corresponding to each item in the DRB adding modification list in the first DRB configuration information: Establishing a PDCP, reestablishing the RLC, reconfiguring the PDCP according to the PDCP configuration information, reconfiguring the RLC according to the RLC configuration information, and reconfiguring the logical channel according to the logical channel configuration information, and reconfiguring the DRB according to the first DRB configuration information by the UE Relationship with QoS ID. The UE releases the DRB corresponding to the DRB ID according to each DRB ID in the DRB release list.
  • the core network and the access network adopt different QoS mechanisms, and in the case that the evolved eNB and the 5G base station cannot identify the RRC protocol of the opposite party, the Xn interface between the evolved eNB and the 5G base station can be performed. Guarantee QoS switching.
  • An embodiment provides a storage medium that can be configured to be stored for performing the following Step code:
  • the handover request message carries one or more data radio bearer DRB information configured by the source base station for the UE, and one or more stream service quality information configured by the core network side for the UE;
  • the foregoing storage medium may include a plurality of media that can store program codes, such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.
  • the processor in the source base station executes according to the stored program code in the storage medium:
  • the handover request message carries one or more data radio bearer DRB information configured by the source base station for the UE, and one or more stream service quality information configured by the core network side for the UE;
  • the UE sends an RRC connection reconfiguration message carrying the first DRB configuration information, where the first DRB configuration information is used by the UE to configure the radio resource.
  • One or more of the above modules or one or more steps may be implemented by a general purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices, optionally
  • the program code executable by the computing device can be implemented, such that they can be stored in a storage device for execution by the computing device, and in some cases, the steps shown or described can be performed in an order different than the ones described herein. Or make them into multiple integrated circuit modules, or make each of these modules or steps into a single integrated circuit module.
  • the source base station includes:
  • At least one processor 1000 one processor 1000 is taken as an example in FIG. 10; a memory 1001; and a communication interface 1002 and a bus 1003.
  • the processor 1000, the memory 1001, and the communication interface 1002 can complete communication with each other through the bus 1003.
  • the processor 1000 can call the logic instructions in the memory 1001 to The method performed by the source base station in the above embodiment is performed.
  • logic instructions in the memory 1001 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the memory 1001 is a computer readable storage medium, and can be used to store a software program, a computer executable program, such as a program instruction or a module corresponding to a method executed by a source base station in the above embodiment.
  • the processor 1000 performs a function application and data processing by executing a software program, an instruction or a module stored in the memory 1001, that is, a method performed by the source base station in the above embodiment.
  • the memory 1001 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 1001 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the target base station includes:
  • At least one processor 110 is exemplified by a processor 110 in FIG. 11; a memory 111; and a communication interface 112 and a bus 113.
  • the processor 110, the memory 111, and the communication interface 112 can complete communication with each other through the bus 113.
  • the processor 110 can invoke logic instructions in the memory 111 to perform the method performed by the target base station in the above embodiments.
  • logic instructions in the memory 111 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the memory 111 is a computer readable storage medium and can be used to store a software program, a computer executable program, such as a program instruction or a module corresponding to a method executed by a target base station in the above embodiment.
  • the processor 110 performs a function application and data processing by executing a software program, an instruction or a module stored in the memory 111, that is, a method performed by the target base station in the above embodiment.
  • the memory 111 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the terminal device, and the like. Further, the memory 111 may include a high speed random access memory, and may also include a nonvolatile memory.
  • An embodiment provides a hardware structure diagram of a user equipment.
  • the user equipment includes:
  • At least one processor 120 is exemplified by a processor 120 in FIG. 12; a memory 121; and a communication interface 122 and a bus 123.
  • the processor 120, the memory 121, and the communication interface 122 can complete communication with each other through the bus 123.
  • the processor 120 can call the logic instructions in the memory 121 to perform the method performed by the user equipment in the above embodiments.
  • logic instructions in the memory 121 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the memory 121 is a computer readable storage medium and can be used to store a software program, a computer executable program, such as a program instruction or a module corresponding to a method executed by a user equipment in the above embodiment.
  • the processor 120 executes the function application and the data processing by executing a software program, an instruction or a module stored in the memory 121, that is, the method performed by the user equipment in the above embodiment.
  • the memory 121 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 121 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the handover method and device can solve the problem that the QoS mechanism adopted by the core network and the access network is not uniform when the base station is switched.

Abstract

切换方法包括：在用户设备UE的服务基站从源基站向目标基站切换时，源基站向目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息；源基站接收目标基站发送的切换请求确认消息，其中，切换请求确认消息携带目标基站为UE生成的第一DRB配置信息；以及源基站向UE发送携带第一DRB配置信息的RRC连接重配置消息。还公开了一种切换装置。

Description

切换方法及装置 技术领域
本公开涉及通信领域，例如，涉及一种切换方法及装置。
背景技术
在第四代(4th Generation，4G)或称长期演进(Long Term Evolution，LTE)移动通信系统中，图1是4G系统的结构示意图，将具有相同服务质量(Quality of Service，QoS)要求的数据流聚合成承载，AN(Access Network，接入网)与核心网(Core Network，CN)对QoS的处理都是按承载进行的。4G系统中，接入网包括演进基站(evolved Node B，eNB)与用户设备(User Equipment，UE)。有一个eNB与核心网间S1接口上的网络侧承载，相应地，就有一个eNB与UE间空口上的无线承载，即所述网络侧承载和所述无线承载是1∶1对应的。
4G系统中，QoS参数包括：QoS类别标识(QoS Class Identifier，QCI)和分配和保留优先级(Allocation and Retention Priority，ARP)。QCI包括：承载类型(保证比特率(Guaranteed Bit Rate，GBR)或者非保证比特率(non-GBR))、优先级(priority)、包时延预算(Packet Delay Budget)以及错包率(Packet Error Rate)。当过载的时候，ARP用于指示本承载被删除或保留的优先级。
如果承载类型为non-GBR承载，QoS参数还包括：聚合最大比特率(Aggregate Maximum Bit Rate，AMBR)。AMBR包括：UE的所有non-GBR承载聚合最大比特率(UE-AMBR)和接入点名字(Access Point Name，APN)对应的non-GBR承载聚合最大比特率(APN-AMBR)。
如果承载类型为GBR承载，QoS参数还包括：最大比特率(Maximum Bit Rate，MBR)和GBR。
4G系统中，QoS策略由核心网控制，基站被动地接受或拒绝QoS参数，基站无法根据实时的无线负荷调整QoS参数，而核心网又无法实时获知当前无线负荷，因此，核心网难以做出合理的QoS决策。核心网中的策略与计费规则功能(Policy and Charging Rule Function，PCRF)保证了UE在一个分组数据网络 (Packet Data Network，PDN)链接中不会出现两个相同QoS的承载，当UE请求了第一个PDN链接后，当UE请求第二个PDN链接时，可能因不同的PCRF决策而建立一个和第一个PDN链接中相同QoS的承载，可能出现一个UE有两个相同QoS的网络侧承载。由于无线承载和网络侧承载是1∶1对应的，存在多个无线承载，导致无线资源浪费。
第五代(5th Generation，5G)移动通信技术中，图2是5G系统的结构示意图，相比于4G移动通信，5G移动通信将有1000倍级网络吞吐量、100倍级设备连接数以及10倍级低时延的需求提升。这在一定程度上要求5G系统具有新的更好的QoS机制。
5G系统将采用一个统一的结构来支持增强移动宽带(enhanced Mobile Broadband，eMBB)、巨量机器类型通讯(massive Machine Type Communication，mMTC)以及高可靠低时延通讯(Ultra Reliable and Low Latency Communication，URLLC)等业务。5G系统中，核心网、基站和UE都会做大演进。其中，可能出现介于4G移动通信技术向5G移动通信技术过渡的基站，该类型基站的空口更接近4G系统中的基站(即eNB)的空口，该类型基站通过其空口可以成功连接到5G核心网，可称该类型基站为演进eNB。类似于4G系统中eNB之间的X2接口，5G系统中，5G基站之间也可以有直接接口，称为Xn接口，演进eNB之间或演进eNB与5G基站间也可以有Xn接口。类似于4G系统中eNB与核心网间的S1接口，5G系统中，对于5G基站与5G核心网间的接口，称为NG接口，演进eNB与5G核心网间的接口亦为NG接口。
虽然演进eNB也可以成功连接到5G核心网，但由于演进eNB在空口上更接近于4G系统中的基站(eNB)，演进eNB的无线资源控制(Radio Resource Control，RRC)协议也更接近于eNB的RRC，与5G基站的RRC将有着重大差别，因而，演进eNB与5G基站将不能识别对方的RRC协议。
发明内容
一种切换方法及装置，能够解决在基站切换时核心网与接入网采用的QoS机制不统一的问题。
一种切换方法，包括：
在用户设备UE的服务基站从源基站向目标基站切换时，所述源基站向所述目标基站发送切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
所述源基站接收所述目标基站发送的切换请求确认消息，其中，所述切换请求确认消息携带所述目标基站根据所述切换请求消息为所述UE生成的第一DRB配置信息；以及
所述源基站向所述UE发送携带所述第一DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述第一DRB配置信息用于所述UE配置无线资源。
可选的，所述流服务质量信息包括：用于指示所述流服务质量信息的标识信息以及服务质量QoS规则，其中，所述标识信息包括流标识ID或服务质量标识QoS ID。
可选的，所述QoS规则包括以下至少之一：分组延迟预算PDB、分组误码率PER、优先级、保证流比特率、最大流比特率、分配和保留优先权、每个UE的最大比特率、许可控制、流优先权级别FPL、分组优先权指示PPI、分组丢弃优先权指示PDPI、体验质量QoE水平以及反射QoS指示。
可选的，每个DRB信息包括：DRB的标识ID，
所述每个DRB信息还包括：所述DRB ID对应的DRB关联的流ID和所述DRB ID对应的DRB关联的QoS ID中之一、以及所述源基站为所述DRB配置的第二DRB配置信息，其中，所述第二DRB配置信息包括所述源基站为所述DRB配置的分组数据汇聚协议PDCP、无线链路控制RLC以及逻辑信道的配置参数。
可选的，当所述源基站收到的所述第一DRB配置信息包含未被所有DRB信息中任一DRB关联到的流ID或QoS ID时，在所述源基站向所述UE发送所述RRC连接重配置消息后，所述方法还包括：
所述源基站将所述未被所有DRB信息中任一DRB关联到的流ID或QoS ID发送给核心网。
一种切换方法，包括：
在用户设备UE的服务基站从源基站向目标基站发生切换时，所述目标基站接收所述源基站发送的切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
所述目标基站根据所述切换请求消息为所述UE生成第一DRB配置信息；以及
所述目标基站向所述源基站发送携带所述第一DRB配置信息的切换请求确认消息。
可选的，所述目标基站根据所述切换请求消息为所述UE生成第一DRB配置信息包括：
所述目标基站将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表；以及
所述目标基站将所述DRB添加修改列表和所述DRB释放列表确定为所述第一DRB配置信息。
可选的，所述DRB添加修改列表中的每一个DRB配置信息包括第一DRB ID、以及以下一项或多项：所述第一DRB ID对应的第一DRB关联的一个或多个流ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息。
可选的，所述第一DRB ID对应的第一DRB关联的一个或多个流ID或QoS ID包括：所述目标基站变更所述第一DRB与一个或多个流ID或QoS ID的关联关系后，所述第一DRB重新关联的一个或多个流ID或QoS ID。
可选的，当所述第一DRB配置信息包括未被所有DRB信息中任一DRB关联到的流ID或QoS ID时，所述目标基站在所述UE成功接入到所述目标基站后，所述方法还包括：
将所述未被所有DRB信息中任一DRB关联到的流ID或QoS ID发送给核心网。
一种切换方法，包括：
在用户设备UE的服务基站从源基站向目标基站发生切换时，所述UE接收所述源基站发送的携带DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述DRB配置信息是所述目标基站根据切换请求消息为所述UE生成的，以及所述切换请求消息为所述源基站发送给目标基站的，以及所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；以及
所述UE根据所述RRC连接重配置消息中的所述DRB配置信息配置无线资源。
可选的，所述DRB配置信息包括：DRB添加修改列表和DRB释放列表，
所述DRB添加修改列表中的每一个元组包括第一DRB标识ID、以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流标识ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息，其中，所述第一DRB为DRB信息中所述目标基站同意建立的DRB；以及
所述DRB释放列表中的每一个元组包括第二DRB ID，其中，所述第二DRB ID对应的第二DRB为DRB信息中所述目标基站不同意建立的DRB。
可选的，所述UE根据所述RRC连接重配置消息中的DRB配置信息配置无线资源包括：
所述UE根据所述DRB添加修改列表中的每一个元组信息对所述第一DRB进行无线资源配置；以及
根据所述DRB释放列表中的每一个元组信息中的第二DRB ID，释放所述第二DRB ID相应的第二DRB的无线资源。
可选的，所述对第一DRB进行无线资源配置包括以下一项或多项：
重建立PDCP；
重建立RLC；
根据所述PDCP配置信息重配置PDCP；
根据所述RLC配置信息重配置RLC；
根据所述逻辑信道配置信息重配置逻辑信道；以及
根据所述第一DRB关联的流ID或QoS ID重配置所述第一DRB与流ID或QoS ID的关联关系。
一种切换装置，应用在源基站，包括：
第一发送模块，设置为在用户设备UE的服务基站从源基站向目标基站切换时，向所述目标基站发送切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
接收模块，设置为接收所述目标基站发送的切换请求确认消息，其中，所述切换请求确认消息携带所述目标基站根据所述切换请求消息为所述UE生成的第一DRB配置信息；以及
第二发送模块，设置为向所述UE发送携带所述第一DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述第一DRB配置信息用于所述UE配置无线资源。
可选的，所述流服务质量信息包括：用于指示所述流服务质量信息的标识信息以及服务质量QoS规则，其中，所述标识信息包括流标识ID或服务质量标识QoS ID。
一种切换装置，应用在目标基站，包括：
接收模块，设置为在用户设备UE的服务基站从源基站向目标基站切换时，接收所述源基站发送的切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
生成模块，设置为根据所述切换请求消息为所述UE生成第一DRB配置信息；以及
发送模块，设置为向所述源基站发送携带所述第一DRB配置信息的切换请求确认消息。
可选的，所述生成模块包括：
配置单元，设置为将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表；以及
确定单元，设置为将所述DRB添加修改列表和所述DRB释放列表确定为所述第一DRB配置信息。
一种切换装置，应用在用户设备UE，包括：
接收模块，设置为在UE的服务基站从源基站向目标基站发生切换时，接收所述源基站发送的携带DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述DRB配置信息是所述目标基站根据切换请求消息为所述UE生成的，以及所述切换请求消息为所述源基站发送给所述目标基站的，以及所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；以及
配置模块，设置为根据所述RRC连接重配置消息中的所述DRB配置信息配置无线资源。
可选的，所述DRB配置信息包括：DRB添加修改列表和DRB释放列表，
所述DRB添加修改列表中的每一个元组包括第一DRB标识ID、以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流标识ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息，其中，所述第一DRB为DRB信息中所述目标基站同意建立的DRB；以及
所述DRB释放列表中的每一个元组包括第二DRB ID，其中，所述第二DRB ID对应的第二DRB为DRB信息中所述目标基站不同意建立的DRB。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述任一项的方法。一种源基站，包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述 至少一个处理器执行，以使所述至少一个处理器执行上述源基站执行的方法。
一种目标基站，包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器执行上述目标基站执行的方法。
一种用户设备，包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器执行上述用户设备执行的方法。
附图说明
图1是4G系统的结构示意图；
图2是5G系统的结构示意图；
图3是根据一实施例的一种切换方法的流程图；
图4是根据一实施例的另一种切换方法的流程图；
图5是根据一实施例的又一种切换方法的流程图；
图6是根据一实施例的一种切换装置的结构框图；
图7是根据一实施例的另一种切换装置的结构框图；
图8是根据一实施例的又一种切换装置的结构框图；
图9是一实施例的切换方法的流程图；
图10是一实施例的源基站的硬件结构示意图；
图11是一实施例的目标基站的硬件结构示意图；以及
图12是一实施例的用户设备的硬件结构示意图。
具体实施方式
说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。图3是一实施例的切换方法的流程图，一本实施例提供的方法可运行于上述图1或图2所示的网络结构中。本实施例的方法的执行主体可以为基站，如，源基站。如图3所示，该方法包括如下步骤。
步骤302中，在用户设备UE的服务基站从源基站向目标基站切换时，源基站向目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载(Data Radio Bearer，DRB)信息、以及核心网侧为UE配置的一个或多个流服务质量(Flow QoS)信息。
步骤304中，源基站接收目标基站发送的切换请求确认消息，其中，切换请求确认消息携带目标基站根据切换请求消息为UE生成的第一DRB配置信息。
步骤306中，源基站向UE发送携带第一DRB配置信息的RRC连接重配置消息，其中，第一DRB配置信息用于UE配置无线资源。
上述方法可以解决基站切换时核心网与接入网采用的QoS机制不统一的问题。在核心网与接入网采用不同的QoS机制，以及演进eNB与5G基站不能识别对方的RRC协议的情况下，上述方法能够实现在演进eNB与5G基站间Xn接口上进行保证QoS(如，保证不丢数据包以及不重复发送数据包的Qos)的切换。
可选的，流服务质量(Flow QoS)信息包括：用于指示流服务质量信息的标识信息以及QoS规则，其中，所述标识信息包括流(Flow)标识(Identifier，ID)或QoS ID。
在一实施例中，QoS规则包括以下至少之一：分组延迟预算(Packet Delay Budget，PDB)、分组误码率(Packet Error Rate，PER)、优先级、保证流比特率(Guaranteed Flow Bit Rate)、最大流比特率(Maximum Flow Bit Rate)、分配和保留优先权(Allocation and Retention Priority，ARP)、每个UE的最大比特率(Per UE Maximum Bit Rate)、许可控制(Admission Control)、流优先权级别(Flow Priority Level，FPL)、分组优先权指示(Packet Priority Instruction，PPI)、分组丢弃优先权指示(Packet Discard Priority Indicator，PDPI)、体验质量(Quality of Experience，QoE)水平(QoE Level)以及反射QoS指示(Reflective  QoS Indication)。
其中，反射QoS指示用于指示根据下行流QoS信息来确定上行流QoS信息，在QoS规则包括反射QoS指示时，QoS规则可以不包括上行流QoS信息。
可选的，每个DRB信息包括：DRB ID，每个DRB信息还包括：该DRB ID对应的DRB关联的流(Flow)ID和该DRB ID对应的DRB关联的QoS ID中之一、以及源基站为该DRB配置的第二DRB配置信息。其中，第二DRB配置信息包括源基站为该DRB配置的：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)、无线链路控制(Radio Link Control，RLC)以及逻辑信道的配置参数。
可选的，当源基站收到的第一DRB配置信息包含未被所有DRB信息中所有DRB ID对应的所有DRB中任一DRB关联到的流ID或QoS ID时，在源基站向UE发送RRC连接重配置消息后，所述方法还包括：源基站将未被所有DRB信息中所有DRB ID对应的所有DRB中任一DRB关联到的流ID或QoS ID发送给核心网。
图4是根据一实施例的一种切换方法的流程图，如图4所示，该流程包括如下步骤。
步骤402中，在用户设备UE的服务基站从源基站向目标基站切换时，目标基站接收源基站发送的切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息。
步骤404中，目标基站根据切换请求消息为UE生成第一DRB配置信息。
步骤406中，目标基站向源基站发送携带第一DRB配置信息的切换请求确认消息。
可选的，目标基站根据切换请求消息为UE生成第一DRB配置信息包括：
目标基站将同意建立的DRB信息中的第一DRB对应的DRB配置信息放入DRB添加修改列表，将不同意建立的DRB信息中的第二DRB对应的DRB ID放入DRB释放列表；以及
目标基站将DRB添加修改列表和DRB释放列表确定为第一DRB配置信 息。
可选的，DRB添加修改列表中的每一个DRB配置信息包括第一DRB ID、以及以下一项或多项：第一DRB ID对应的DRB关联的一个或多个流ID或QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息。
可选的，第一DRB ID对应的第一DRB关联的一个或多个流ID和或QoS ID包括：目标基站变更第一DRB ID对应的第一DRB与一个或多个流ID或QoS ID的关联关系后，第一DRB ID对应的第一DRB重新关联的一个或多个流ID或QoS ID。
在可选的方案中，当DRB配置信息存在未被所有DRB信息中任一DRB关联到的流ID或QoS ID时，目标基站在UE成功接入到目标基站后，所述方法还包括：将未被所有DRB信息中任一DRB关联到的流ID或QoS ID信息发送给核心网。
图5是根据一实施例的一种切换方法的流程图，如图5所示，该流程包括如下步骤。
步骤502中，在用户设备UE的服务基站从源基站向目标基站切换时，UE接收源基站发送的携带DRB配置信息的RRC连接重配置消息，其中，所述DRB配置信息是目标基站根据切换请求消息为所述UE生成的，以及所述切换请求消息为所述源基站发送给目标基站的，以及所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息。
步骤504中，UE根据RRC连接重配置消息中的DRB配置信息配置无线资源配置。
可选的，DRB配置信息包括：DRB添加修改列表和DRB释放列表，DRB添加修改列表中的每一个元组包括第一DRB ID，以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流ID或QoS ID、PDCP配置信息、RLC配置信息以及逻辑信道配置信息，其中，第一DRB为DRB信息中目标基站同意建立的DRB，以及DRB释放列表中的每一个元组包括第二DRB ID，其中，第二DRB ID对应的第二DRB为DRB信息中目标基站不同意建立的DRB。
可选的，UE根据RRC连接重配置消息中的DRB配置信息进行无线资源配置包括：UE根据DRB添加修改列表中的每一个元组信息对第一DRB进行无线资源配置，根据DRB释放列表中的每一个元组信息中的第二DRB ID，释放第二DRB ID相应的第二DRB的无线资源。
可选的，对第一DRB进行无线资源配置包括以下一项或多项：
重建立PDCP；
重建立RLC；
根据PDCP配置信息重配置PDCP；
根据RLC配置信息重配置RLC；
根据逻辑信道配置信息重配置逻辑信道；以及
根据第一DRB关联的流ID或QoS ID重配置第一DRB与流ID或QoS ID的关联关系。
上述实施例的方法可借助软件加通用硬件平台的方式来实现，也可以通过硬件实现。上述实施例中的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个非暂态存储介质(如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random-Access Memory，RAM)、磁碟或者光盘)中，包括一个或多个指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行上述实施例中的方法，该计算机软件产品也可以存储在暂态存储介质。
以下实施例提供了切换装置，该装置可以实现上述实施例。术语“模块”可以实现预定功能的软件和硬件中至少之一。
图6是根据以实施例的一种切换装置的结构框图，该切换装置可以应用在源基站，如图6所示，该装置包括：第一发送模块60、接收模块62和第二发送模块64。
第一发送模块60设置为在用户设备UE的服务基站从源基站向目标基站切换时，向目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息。
接收模块62设置为接收目标基站发送的切换请求确认消息，其中，切换请求确认消息携带所述目标基站根据切换请求消息为UE生成的第一DRB配置信息。
第二发送模块64设置为向UE发送携带所述第一DRB配置信息的无线资源控制RRC连接重配置消息，其中，第一DRB配置信息用于UE配置无线资源。
可选的，流服务质量信息包括：用于指示流服务质量信息的标识信息以及服务质量QoS规则，其中，标识信息包括流ID或QoS ID。
图7是根据一实施例的一种切换装置的结构框图，该切换装置可应用在目标基站，如图7所示，该装置包括：接收模块70、生成模块72以及返回模块74。
接收模块70设置为在用户设备UE的服务基站从源基站向目标基站切换时，接收目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息。
生成模块72设置为根据切换请求消息为UE生成第一DRB配置信息。
发送模块74设置为向源基站发送携带第一DRB配置信息的切换请求确认消息。
可选的，生成模块72包括：配置单元和确定单元。配置单元设置为将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表。确定单元设置为将DRB添加修改列表和DRB释放列表确定为第一DRB配置信息。
图8是根据一实施例的一种切换装置的结构框图，该切换装置可应用在UE，如图8所示，该装置包括：接收模块80和配置模块82。
接收模块80设置为在UE的服务基站从源基站向目标基站切换时，接收源基站发送的携带DRB配置信息的无线资源控制RRC连接重配置消息，其中，DRB配置信息是目标基站根据切换请求消息为UE生成的，以及切换请求消息为源基站发送给目标基站的，以及切换请求消息携带源基站为UE配置的一个或 多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息。
配置模块82设置为根据RRC连接重配置消息中的DRB配置信息配置无线资源。
可选的，UE在目标基站的DRB配置信息包括：DRB添加修改列表和DRB释放列表，DRB添加修改列表中的每一个元组包括第一DRB标识ID、以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流ID或QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息，其中，所述第一DRB为DRB信息中所述目标基站同意建立的DRB。
DRB释放列表中的每一个元组包括第二DRB ID，其中，所述第二DRB ID对应的第二DRB为DRB信息中所述目标基站不同意建立的DRB。
上述多个模块是可以通过软件或硬件来实现的，在硬件实现中，多个模块均位于同一处理器中，或者，多个个模块以任意组合的形式分别位于多个处理器中。
一实施例提供了一种保证QoS的Xn接口切换的方法，所述方法包括：
源基站向目标基站发送切换请求消息，其中，切换请求消息携带一个或多个接入网侧源基站的DRB信息(即，上述实施例中源基站为UE配置的DRB信息)、以及核心网侧为UE配置一个或多个流服务质量信息；
目标基站收到所述切换请求消息，同意该切换请求，根据所述切换请求消息中携带的信息生成第一DRB配置信息；
目标基站向源基站发送切换请求确认消息，其中，切换请求确认消息携带所述第一DRB配置信息；源基站收到所述切换请求确认消息，向UE发送RRC连接重配置消息，其中，RRC连接重配置消息携带所述目标基站的DRB配置信息；以及UE接收所述RRC连接重配置消息，根据第一DRB配置信息进行配置操作。
图9是一实施例中切换方法的流程图，本实施例中，目标基站同意建立所有DRB信息中的DRB，所述方法包括以下步骤。
步骤1中，源基站向目标基站发送切换请求消息，其中，切换请求消息携 带接入网侧源基站的一个或多个DRB信息、以及核心网侧的一个或多个流服务质量信息。
步骤2中，目标基站收到所述切换请求消息，同意该切换请求且同意建立所有DRB信息中的DRB，根据所述切换请求消息中携带的信息生成目标基站的DRB配置信息，所述目标基站的DRB配置信息包括DRB添加修改列表。DRB添加修改列表包括中的每一项包括DRB ID、该DRB ID对应的DRB关联的一个或多个流ID或QoS ID，以及以下一项或多项：PDCP配置信息、RLC配置信息以及逻辑信道配置信息。
步骤3中，目标基站向源基站发送切换请求确认消息，其中，切换请求确认消息携带所述目标基站的DRB配置信息及DRB添加修改列表(DRB添加修改列表中每一项包括DRB ID、该DRB ID对应的DRB关联的一个或多个Flow ID或QoS ID)。
步骤4中，源基站收到所述切换请求确认消息，向UE发送RRC连接重配置消息，RRC连接重配置消息携带目标基站的为UE生成的DRB配置信息。
步骤5中，UE收到所述RRC连接重配置消息，根据DRB配置信息中的DRB添加修改列表中的每一项所对应的DRB进行以下至少之一：重建立PDCP、重建立RLC、根据所述PDCP配置信息重配置PDCP、根据所述RLC配置信息重配置RLC以及根据所述逻辑信道配置信息重配置逻辑信道。
一实施例提供了一种切换方法，本实施例中，目标基站同意建立多个DRB信息中的部分DRB，本实施例中的方法包括以下步骤。
步骤1中，源基站向目标基站发送切换请求消息，切换请求消息携带接入网侧源基站的多个DRB信息、以及核心网侧的一个或多个流服务质量信息。
步骤2中，目标基站收到所述切换请求消息，同意切换请求且同意建立多个DRB信息中的部分的DRB，根据所述切换请求消息中携带的信息生成第一DRB配置信息，所述第一配置信息包括DRB添加修改列表和DRB释放列表。
所述目标基站将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表。
所述DRB添加修改列表包括多个DRB信息中目标基站同意建立的第一DRB对应的DRB配置信息，每个DRB配置信息包括第一DRB ID、该第一DRB ID对应的第一DRB关联的一个或多个流ID或QoS ID，以及以下一项或多项：PDCP配置信息、RLC配置信息以及逻辑信道配置信息。
步骤3中，目标基站向源基站发送切换请求确认消息，其中，切换请求确认消息携带第一DRB配置信息、同意建立的DRB的第一列表，即DRB添加修改列表(其每一项包括第一DRB ID、第一DRB ID对应的DRB关联的一个或多个Flow ID或QoS ID)和未同意建立的DRB的第二列表，即DRB释放列表(其每一项包括第二DRB ID)。
步骤4中，源基站收到所述切换请求确认消息，向UE发送RRC连接重配置消息，RRC连接重配置消息携带所述第一DRB配置信息。
步骤5中，UE收到所述RRC连接重配置消息，根据所述第一DRB配置信息中的DRB添加修改列表中的每一项所对应的DRB进行以下至少之一的操作：重建立PDCP、重建立RLC、根据所述PDCP配置信息重配置PDCP、根据所述RLC配置信息重配置RLC以及根据所述逻辑信道配置信息重配置逻辑信道，UE根据所述DRB释放列表中的每个DRB ID，释放所述DRB释放列表中的每个DRB ID对应的DRB。
一实施例提供了一种切换方法，本实施例中的目标基站同意建立所有DBR信息中的所有的DRB，并变更了DRB与QoS ID的关联关系，所述方法包括以下步骤。
步骤1中，源基站向目标基站发送切换请求消息，切换请求消息携带接入网侧源基站的一个或多个DRB信息、以及核心网侧的一个或多个流服务质量信息。
步骤2中，目标基站收到所述切换请求消息，同意切换请求且同意建立所有所有DBR信息中的DRB，并变更了DRB与QoS ID的关联关系(例如切换请求消息中有2个DRB，DRB1和DRB2，DRB1与QoS ID 1、QoS ID 2关联，DRB2与QoS ID 3、QoS ID 4关联，变更后DRB1与QoS ID 2关联，DRB2与QoS ID 1、QoS ID 3、QoS ID 4关联)，根据所述切换请求消息中携带的信息及变更后的DRB与QoS ID的关联关系生成第一DRB配置信息，目标基站将同意 建立的DRB信息中的DRB对应的DRB配置信息放入DRB添加修改列表，所述第一DRB配置信息包括DRB添加修改列表，该列表中的每一项DRB配置信息包括DRB ID、变更与Qos ID关联关系后的DRB关联的一个或多个QoS ID，以及以下一项或多项：PDCP配置信息、RLC配置信息以及逻辑信道配置信息。
步骤3中，目标基站向源基站发送切换请求确认消息，其中，切换请求确认消息携带所述第一DRB配置信息、及同意建立的DRB添加修改列表(DRB添加修改列表每一项包括DRB ID、该DRB ID对应的DRB关联的一个或多个QoS ID)。
步骤4中，源基站收到所述切换请求确认消息，向UE发送RRC连接重配置消息，其中，RRC连接重配置消息携带所述目标基站的DRB配置信息。
步骤5中，UE收到所述RRC连接重配置消息，根据所述第一DRB配置信息中的所述DRB添加修改列表中的每一项所对应的DRB进行以下一项或多项的操作：重建立PDCP、重建立RLC、根据所述PDCP配置信息重配置PDCP、根据所述RLC配置信息重配置RLC以及根据所述逻辑信道配置信息重配置逻辑信道，以及UE根据第一DRB配置重新配置DRB与QoS ID的关联关系。
一实施例提供了一种切换方法，本实施例中的目标基站同意建立多个DRB信息中的部分DRB，并变更了DRB与QoS的关联关系，所述方法包括以下步骤。
步骤1中，源基站向目标基站发送切换请求消息，切换请求消息携带接入网侧源基站的多个DRB信息、以及核心网侧的一个或多个流服务质量信息。
步骤2中，目标基站收到所述切换请求消息，同意切换请求且同意建立多个DRB信息中部分的DRB，并变更了DRB与QoS ID的关联关系(例如切换请求消息中有3个DRB，DRB1、DRB2和DRB3，DRB1与QoS ID 1、QoS ID 2关联，DRB2与QoS ID 3关联，DRB3与QoS ID 4、QoS ID 5关联，目标基站只同意建立DRB1和DRB2，变更后DRB1与QoS ID 1、QoS ID 2关联，DRB2与QoS ID 3、QoS ID 5关联，DRB3将被释放，QoS ID 4没有被关联到)，根据所述切换请求消息中携带的信息生成第一DRB配置信息，所述第一DRB配置信息包括DRB添加修改列表和DRB释放列表。
所述目标基站将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表。
所述DRB添加修改列表包括多个DRB信息中目标基站同意建立的第一DRB所对应的DRB配置信息，每个DRB配置信息包括第一DRB ID、该第一DRB ID对应的DRB变更关联关系后关联的一个或多个QoS ID，以及以下一项或多项：PDCP配置信息、RLC配置信息以及逻辑信道配置信息。所述DRB释放列表包括所有未同意建立的DRB所对应的DRB ID。
步骤3中，目标基站向源基站发送切换请求确认消息，其中，切换请求确认消息携带所述第一DRB配置信息、同意建立的DRB的DRB添加修改列表(DRB添加修改列表的每一项包括第一DRB ID、该第一DRB ID对应的DRB关联的一个或多个QoS ID)、未同意建立的DRB的DRB释放列表(DRB释放列表中每一项包括第二DRB ID)和包括没有被多个DRB信息中任一DRB关联到的QoS ID的QoS ID列表。
步骤4中，源基站收到所述切换请求确认消息，向UE发送RRC连接重配置消息，RRC连接重配置消息携带所述目标基站的DRB配置信息。
步骤4a中，源基站将所述QoS ID列表发送给核心网(源基站也可以在UE成功接入到目标基站后由目标基站发送所述QoS ID列表给核心网)，以便核心网进行相关应对措施。
步骤5中，UE收到所述RRC连接重配置消息，根据所述第一DRB配置信息中的所述DRB添加修改列表中的每一项所对应的DRB进行以下一项或多项操作：重建立PDCP、重建立RLC、根据所述PDCP配置信息重配置PDCP、根据所述RLC配置信息重配置RLC以及根据所述逻辑信道配置信息重配置逻辑信道，以及UE根据第一DRB配置信息重配置DRB与QoS ID的关联关系。UE根据所述DRB释放列表中的每个DRB ID，释放该DRB ID对应的DRB。
上述实施例中，在5G系统中核心网与接入网采用不同的QoS机制，以及演进eNB与5G基站不能识别对方的RRC协议的情况下，能够在演进eNB与5G基站间的Xn接口上进行保证QoS的切换。
一实施例提供了一种存储介质，存储介质可以被设置为存储用于执行以下 步骤的程序代码：
向目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息；
接收目标基站发送的切换请求确认消息，其中，切换请求确认消息携带目标基站根据切换请求消息为UE生成的第一DRB配置信息；以及
向UE发送携带第一DRB配置信息的RRC连接重配置消息，其中，第一DRB配置信息用于UE配置无线资源。
可选地，在本实施例中，上述存储介质可以包括U盘、ROM、RAM、移动硬盘、磁碟或者光盘等多种可以存储程序代码的介质。可选地，源基站中的处理器根据存储介质中已存储的程序代码执行：
向目标基站发送切换请求消息，其中，切换请求消息携带源基站为UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为UE配置的一个或多个流服务质量信息；
接收目标基站发送的切换请求确认消息，其中，切换请求确认消息携带目标基站根据切换请求消息为UE生成的第一DRB配置信息；
UE发送携带第一DRB配置信息的RRC连接重配置消息，其中，第一DRB配置信息用于UE配置无线资源。
上述的一个或多个模块或一个或多个步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在一些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们制作成多个集成电路模块，或者将它们中的每个模块或步骤制作成单个集成电路模块来。
一实施例提供了一种源基站的硬件结构示意图。参见图10，该源基站包括：
至少一个处理器(processor)1000，图10中以一个处理器1000为例；存储器(memory)1001；还可以包括通信接口(Communications Interface)1002和总线1003。其中，处理器1000、存储器1001以及通信接口1002可以通过总线1003完成相互间的通信。处理器1000可以调用存储器1001中的逻辑指令，以 执行上述实施例中源基站执行的方法。
此外，上述的存储器1001中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器1001作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如上述实施例中源基站执行的方法对应的程序指令或模块。处理器1000通过运行存储在存储器1001中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述实施例中源基站执行的方法。
存储器1001可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器1001可以包括高速随机存取存储器，还可以包括非易失性存储器。
一实施例提供了一种目标基站的硬件结构示意图。参见图11，该目标基站包括：
至少一个处理器(processor)110，图11中以一个处理器110为例；存储器(memory)111；还可以包括通信接口(Communications Interface)112和总线113。其中，处理器110、存储器111以及通信接口112可以通过总线113完成相互间的通信。处理器110可以调用存储器111中的逻辑指令，以执行上述实施例中目标基站执行的方法。
此外，上述的存储器111中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器111作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如上述实施例中目标基站执行的方法对应的程序指令或模块。处理器110通过运行存储在存储器111中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述实施例中目标基站执行的方法。
存储器111可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器111可以包括高速随机存取存储器，还可以包括非易失性存储器。
一实施例提供了一种用户设备的硬件结构示意图。参见图12，该用户设备包括：
至少一个处理器(processor)120，图12中以一个处理器120为例；存储器(memory)121；还可以包括通信接口(Communications Interface)122和总线123。其中，处理器120、存储器121以及通信接口122可以通过总线123完成相互间的通信。处理器120可以调用存储器121中的逻辑指令，以执行上述实施例中用户设备执行的方法。
此外，上述的存储器121中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器121作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如上述实施例中用户设备执行的方法对应的程序指令或模块。处理器120通过运行存储在存储器121中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述实施例中用户设备执行的方法。
存储器121可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器121可以包括高速随机存取存储器，还可以包括非易失性存储器。
工业实用性
切换方法及装置能够解决基站切换时核心网与接入网采用的QoS机制不统一的问题。

Claims (21)

  1. 一种切换方法，包括：
    在用户设备UE的服务基站从源基站向目标基站切换时，所述源基站向所述目标基站发送切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
    所述源基站接收所述目标基站发送的切换请求确认消息，其中，所述切换请求确认消息携带所述目标基站根据所述切换请求消息为所述UE生成的第一DRB配置信息；以及
    所述源基站向所述UE发送携带所述第一DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述第一DRB配置信息用于所述UE配置无线资源。
  2. 根据权利要求1所述的方法，其中，所述流服务质量信息包括：用于指示所述流服务质量信息的标识信息以及服务质量QoS规则，其中，所述标识信息包括流标识ID或服务质量标识QoS ID。
  3. 根据权利要求2所述的方法，其中，所述QoS规则包括以下至少之一：分组延迟预算PDB、分组误码率PER、优先级、保证流比特率、最大流比特率、分配和保留优先权、每个UE的最大比特率、许可控制、流优先权级别FPL、分组优先权指示PPI、分组丢弃优先权指示PDPI、体验质量QoE水平以及反射QoS指示。
  4. 根据权利要求2所述的方法，其中，每个DRB信息包括：DRB的标识ID，
    所述每个DRB信息还包括：所述DRB ID对应的DRB关联的流ID和所述DRB ID对应的DRB关联的QoS ID中之一、以及所述源基站为所述DRB配置 的第二DRB配置信息，其中，所述第二DRB配置信息包括所述源基站为所述DRB配置的分组数据汇聚协议PDCP、无线链路控制RLC以及逻辑信道的配置参数。
  5. 根据权利要求4所述的方法，当所述源基站收到的所述第一DRB配置信息包含未被所有DRB信息中任一DRB关联到的流ID或QoS ID时，在所述源基站向所述UE发送所述RRC连接重配置消息后，所述方法还包括：
    所述源基站将所述未被所有DRB信息中任一DRB关联到的流ID或QoS ID发送给核心网。
  6. 一种切换方法，包括：
    在用户设备UE的服务基站从源基站向目标基站发生切换时，所述目标基站接收所述源基站发送的切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
    所述目标基站根据所述切换请求消息为所述UE生成第一DRB配置信息；以及
    所述目标基站向所述源基站发送携带所述第一DRB配置信息的切换请求确认消息。
  7. 根据权利要求6所述的方法，其中，所述目标基站根据所述切换请求消息为所述UE生成第一DRB配置信息包括：
    所述目标基站将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表；以及
    所述目标基站将所述DRB添加修改列表和所述DRB释放列表确定为所述第一DRB配置信息。
  8. 根据权利要求7所述的方法，其中，所述DRB添加修改列表中的每一个DRB配置信息包括第一DRB ID、以及以下一项或多项：所述第一DRB ID对应的第一DRB关联的一个或多个流ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息。
  9. 根据权利要求8所述的方法，其中，所述第一DRB ID对应的第一DRB关联的一个或多个流ID或QoS ID包括：所述目标基站变更所述第一DRB与一个或多个流ID或QoS ID的关联关系后，所述第一DRB重新关联的一个或多个流ID或QoS ID。
  10. 根据权利要求9所述的方法，当所述第一DRB配置信息包括未被所有DRB信息中任一DRB关联到的流ID或QoS ID时，所述目标基站在所述UE成功接入到所述目标基站后，所述方法还包括：
    将所述未被所有DRB信息中任一DRB关联到的流ID或QoS ID发送给核心网。
  11. 一种切换方法，包括：
    在用户设备UE的服务基站从源基站向目标基站发生切换时，所述UE接收所述源基站发送的携带DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述DRB配置信息是所述目标基站根据切换请求消息为所述UE生成的，以及所述切换请求消息为所述源基站发送给目标基站的，以及所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；以及
    所述UE根据所述RRC连接重配置消息中的所述DRB配置信息配置无线资源。
  12. 根据权利要求11所述的方法，其中，所述DRB配置信息包括：DRB添加修改列表和DRB释放列表，
    所述DRB添加修改列表中的每一个元组包括第一DRB标识ID、以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流标识ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息，其中，所述第一DRB为DRB信息中所述目标基站同意建立的DRB；以及
    所述DRB释放列表中的每一个元组包括第二DRB ID，其中，所述第二DRB ID对应的第二DRB为DRB信息中所述目标基站不同意建立的DRB。
  13. 根据权利要求12所述的方法，其中，所述UE根据所述RRC连接重配置消息中的DRB配置信息配置无线资源包括：
    所述UE根据所述DRB添加修改列表中的每一个元组信息对所述第一DRB进行无线资源配置；以及
    根据所述DRB释放列表中的每一个元组信息中的第二DRB ID，释放所述第二DRB ID相应的第二DRB的无线资源。
  14. 根据权利要求13所述的方法，其中，所述对第一DRB进行无线资源配置包括以下一项或多项：
    重建立PDCP；
    重建立RLC；
    根据所述PDCP配置信息重配置PDCP；
    根据所述RLC配置信息重配置RLC；
    根据所述逻辑信道配置信息重配置逻辑信道；以及
    根据所述第一DRB关联的流ID或QoS ID重配置所述第一DRB与流ID或QoS ID的关联关系。
  15. 一种切换装置，应用在源基站，包括：
    第一发送模块，设置为在用户设备UE的服务基站从源基站向目标基站切换时，向所述目标基站发送切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；
    接收模块，设置为接收所述目标基站发送的切换请求确认消息，其中，所述切换请求确认消息携带所述目标基站根据所述切换请求消息为所述UE生成的第一DRB配置信息；以及
    第二发送模块，设置为向所述UE发送携带所述第一DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述第一DRB配置信息用于所述UE配置无线资源。
  16. 根据权利要求15所述的装置，其中，所述流服务质量信息包括：用于指示所述流服务质量信息的标识信息以及服务质量QoS规则，其中，所述标识信息包括流标识ID或服务质量标识QoS ID。
  17. 一种切换装置，应用在目标基站，包括：
    接收模块，设置为在用户设备UE的服务基站从源基站向目标基站切换时，接收所述源基站发送的切换请求消息，其中，所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述 UE配置的一个或多个流服务质量信息；
    生成模块，设置为根据所述切换请求消息为所述UE生成第一DRB配置信息；以及
    发送模块，设置为向所述源基站发送携带所述第一DRB配置信息的切换请求确认消息。
  18. 根据权利要求17所述的装置，其中，所述生成模块包括：
    配置单元，设置为将DRB信息中同意建立的第一DRB对应的DRB配置信息放入DRB添加修改列表，将DRB信息中不同意建立的第二DRB对应的DRB标识ID放入DRB释放列表；以及
    确定单元，设置为将所述DRB添加修改列表和所述DRB释放列表确定为所述第一DRB配置信息。
  19. 一种切换装置，应用在用户设备UE，包括：
    接收模块，设置为在UE的服务基站从源基站向目标基站发生切换时，接收所述源基站发送的携带DRB配置信息的无线资源控制RRC连接重配置消息，其中，所述DRB配置信息是所述目标基站根据切换请求消息为所述UE生成的，以及所述切换请求消息为所述源基站发送给所述目标基站的，以及所述切换请求消息携带所述源基站为所述UE配置的一个或多个数据无线承载DRB信息、以及核心网侧为所述UE配置的一个或多个流服务质量信息；以及
    配置模块，设置为根据所述RRC连接重配置消息中的所述DRB配置信息配置无线资源。
  20. 根据权利要求19所述的装置，其中，所述DRB配置信息包括：DRB添加修改列表和DRB释放列表，
    所述DRB添加修改列表中的每一个元组包括第一DRB标识ID、以及以下一项或多项：第一DRB ID对应的第一DRB关联的一个或多个流标识ID或服务质量标识QoS ID、分组数据汇聚协议PDCP配置信息、无线链路RLC配置信息以及逻辑信道配置信息，其中，所述第一DRB为DRB信息中所述目标基站同意建立的DRB；以及
    所述DRB释放列表中的每一个元组包括第二DRB ID，其中，所述第二DRB ID对应的第二DRB为DRB信息中所述目标基站不同意建立的DRB。
  21. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-14中任一项的方法。
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