WO2016184342A1 - 用于重配置数据承载的方法和用户设备 - Google Patents

用于重配置数据承载的方法和用户设备 Download PDF

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Publication number
WO2016184342A1
WO2016184342A1 PCT/CN2016/081840 CN2016081840W WO2016184342A1 WO 2016184342 A1 WO2016184342 A1 WO 2016184342A1 CN 2016081840 W CN2016081840 W CN 2016081840W WO 2016184342 A1 WO2016184342 A1 WO 2016184342A1
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Prior art keywords
data bearer
drb
mcg
wln
entity
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PCT/CN2016/081840
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English (en)
French (fr)
Inventor
肖芳英
刘仁茂
Original Assignee
夏普株式会社
肖芳英
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 夏普株式会社, 肖芳英 filed Critical 夏普株式会社
Priority to JP2017559685A priority Critical patent/JP6661663B2/ja
Priority to US15/574,429 priority patent/US10433348B2/en
Priority to SG11201709386RA priority patent/SG11201709386RA/en
Priority to EP16795829.7A priority patent/EP3297388A4/en
Priority to CA2985869A priority patent/CA2985869A1/en
Publication of WO2016184342A1 publication Critical patent/WO2016184342A1/zh
Priority to US16/577,336 priority patent/US10999880B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • 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
    • 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
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to mobile communications, and in particular to a method for reconfiguring data bearers and corresponding user equipment.
  • LTE 3rd Generation Partnership Project
  • WLAN Wireless Local Area Network
  • a research proposal for enhancing the integration and interoperability of LTE-WLAN at the RAN level in 3GPP LTE Release 13 was adopted at the 3GPP TSG RAN #67 conference (see 3GPP Conference Proposal RP-150510).
  • Research on enhancing the integration and interoperability of LTE-WLAN at the RAN level includes: enhancing the integration of LTE-WLAN at the RAN level and enhancing the interoperability of LTE-WLAN at the RAN level.
  • the integration of the LTE-WLAN at the RAN level means that the user equipment in the RRC connected state is configured to utilize the radio resources provided by the LTE and the WLAN at the same time, and the integration does not affect the existing standards of the MAC layer of the WLAN.
  • the integration of the enhanced LTE-WLAN at the RAN level is based on the dual connectivity options 2C and 3C as defined by 3GPP LTE Release 12.
  • Options 2C and 3C shown in Figures 1 and 2 contain two logical nodes: a primary base station (MeNB) and a WLAN logical node (WLN).
  • the primary base station refers to a base station that supports LTE-WLN integration and interoperation. It is responsible for maintaining the radio resource management measurement configuration of the user equipment and requesting the WLN to provide additional resources to the user equipment based on the received measurement report or traffic status or bearer type. . After receiving the request from the primary base station, the WLN provides a data transmission service for the user equipment or rejects the request due to insufficient resources.
  • WLN refers to a logical node that has the function of receiving user data from the primary base station and forwarding the data to the user equipment using the wireless resources provided by the WLAN.
  • the option 2C shown in FIG. 1 has the following features: (1) the primary base station communicates with the service gateway through the S1-U interface; (2) the data bearer (DRB) is not separated in the primary base station; and (3) the packet data located at the primary base station
  • the convergence protocol PDCP entity encapsulates the PDCP SDU from the service gateway into a WLN
  • the format required by the receiving entity (referred to as the adaptation entity or WLN entity) is sent to the adaptation entity.
  • the adaptation entity encapsulates the data received from the PDCP entity of the MeNB as required, and then transmits the data to the user equipment (UE) through the WLAN radio resource.
  • the user equipment may be a user terminal, a user node, a mobile terminal, or a tablet.
  • a data bearer having the option 2C feature is referred to as a WLN inseparable data bearer (WLN inseparable DRB).
  • Option 3C shown in FIG. 2 has the following features: (1) the primary base station communicates with the service gateway through the S1-U interface; (2) the data bearer is separated in the primary base station; and (3) for the separate data bearer, there is Corresponding to the radio link control RLC entity.
  • the PDCP entity located in the primary base station encapsulates the PDCP SDU from the service gateway into a PDCP PDU, and sends the encapsulated partial PDCP PDU to the UE through the RLC entity, the MAC entity and the physical layer of the MeNB, and the remaining PDCP PDU is further encapsulated and sent as required.
  • the adaptation entity to the WLN is sent to the UE through the radio resources provided by the WLAN.
  • the data bearer having the Option 3C feature is referred to as a WLN split data bearer (WLN split DRB).
  • the Master Cell Group (MCG) mentioned in the present invention refers to a group of serving cells of a UE, which includes one primary cell (PCell) and zero or multiple secondary cells (SCell).
  • PCell primary cell
  • SCell secondary cells
  • MCG DRB primary cell group data bearer
  • the user data transmitted by the data bearer is simultaneously transmitted by using the radio resource of the primary cell group and the radio resource of the WLAN (that is, a part of the user data of the data bearer transmission is transmitted to the PDCP entity, the RLC entity, the MAC entity, and the physical layer PHY of the primary cell group to The UE, another part of the user data is transmitted to the UE via the PDCP entity of the primary cell group and the WLAN, and the data bearer is called a WLN split data bearer (WLN split DRB).
  • the data bearer is referred to as a WLN inseparable data bearer (WLN inseparable DRB).
  • the user data of the WLN inseparable DRB does not utilize the radio resource transmission provided by the LTE, but only the PDCP entity of the MCG encapsulates the data, sends it to the WLN, and transmits the data to the user equipment through the WLAN radio resource.
  • the WLN split DRB and the WLN inseparable DRB are collectively referred to as a WLN data bearer (WLN DRB). That is, the WLNDRB mentioned in the present invention can represent either a WLN separation DRB or a WLN inseparable DRB.
  • data bearer reconfiguration needs to be dynamically performed between the primary base station and the WLN.
  • the WLN may be requested to provide radio resources for the UE, that is, reconfigure the MCG DRB as a WLN split DRB or a WLN inseparable DRB.
  • the primary base station may Reconfiguring the data bearer to the primary base station, that is, reconfiguring the WLN split DRB to the MCG DRB; if the primary base station does not provide radio resources to the UE for a period of time, but the WLN can provide more radio resources for the UE, the primary base station can The data bearer is reconfigured to the WLN, ie, the WLN split DRB is reconfigured as a WLN inseparable DRB.
  • the primary base station When the WLN encapsulates the data by the PDCP entity of the primary base station and separately provides the user with wireless resources for data transmission (ie, based on the option 2C architecture), if the primary base station has more radio resources available to the UE or the WLN for a period of time When there is not enough resources available to the UE, the primary base station can reconfigure the data bearer to the primary base station, that is, reconfigure the WLN inseparable DRB to the MCG DRB; if the primary base station can provide part of the wireless resources for the UE in a period of time, The WLN inseparable DRB is reconfigured as a WLN split DRB.
  • a method performed by a user equipment comprising: receiving a radio resource control connection reconfiguration message; determining whether the received radio resource control connection reconfiguration message includes indication information, the indication information Instructing the user equipment to reconfigure the first type of data bearer to a second type of data bearer different from the first type; and if the received radio resource control connection reconfiguration message includes indication information, according to the radio resource control The connection reconfiguration message is used to reconfigure the user equipment.
  • the first type of data bearer includes a primary cell group MCG data bearer or a wireless local area network WLN split data bearer
  • the second type of data bearer includes an MCG data bearer, a WLN split data bearer, or WLN is inseparable from data bearers.
  • the first type of data bearer is an MCG data bearer
  • the second type of data bearer is a WLN split data bearer
  • reconfiguring the user equipment according to the radio resource control connection reconfiguration message includes: Determining, by the radio resource control connection reconfiguration message, the configuration information related to the adaptation entity, reconfiguring the adaptation entity; if the radio resource control connection reconfiguration message includes a configuration related to the packet data convergence protocol PDCP entity Information, reconfiguring the PDCP entity; if the RRC connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel, to the MCG RLC entity and the MCG DTCH logical channel Reconfigure.
  • the first type of data bearer is an MCG data bearer
  • the second type of data bearer is a WLN split data bearer
  • reconfiguring the user equipment according to the radio resource control connection reconfiguration message includes: Determining, by the radio resource control connection reconfiguration message, configuration information related to the adaptation entity, establishing an adaptation entity; if the radio resource control connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, The PDCP entity performs reconfiguration; if the RRC connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel, reconfiguring the MCG RLC entity and the MCG DTCH logical channel .
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is an MCG data bearer
  • reconfiguring the user equipment according to the radio resource control connection reconfiguration message includes:
  • the radio resource control connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, and reconfigures the PDCP entity; if the radio resource control connection reconfiguration message includes the radio link control RLC entity and the MCG
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is an MCG data bearer
  • reconfiguring the user equipment according to the radio resource control connection reconfiguration message includes:
  • the radio resource control connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, and the PDCP entity is entered.
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is a WLN inseparable data bearer
  • reconfiguring the user equipment according to the radio resource control connection reconfiguration message includes: Release the MCG RLC entity and the MCG DTCH logical channel; if the RRC connection reconfiguration message includes configuration information related to the Packet Data Convergence Protocol PDCP entity, reconfiguring the PDCP entity; if the RRC connection reconfiguration The message contains configuration information related to the adaptation entity, and the adaptation entity is reconfigured.
  • the method further comprises: reconstructing the PDCP entity.
  • determining whether to reestablish the PDCP entity is by transmitting RRC signaling to the user equipment.
  • the indication information includes a drb-TypeChangWLN cell carried in a drb-ToAddModList cell and a drb-TypeWLN cell carried in a drb-ToAddModListWLN cell, where the drb-ToAddModList cell is a set of needs An increased or modified data bearer, the drb-TypeChangWLN cell is used to indicate whether to reconfigure a WLN split data bearer or a WLN inseparable data bearer into an MCG data bearer, the drb-ToAddModListWLN cell is a group that needs to be added or modified WLN data bearer, the drb-Type WLN cell indicates the type of corresponding data bearer.
  • determining whether to reconfigure the MCG data bearer into WLN separated data according to whether the value of the drb-Type WLN cell and the data bearer corresponding to the drb-Type WLN cell are included in the drb-ToAddModList cell and the drb-ToAddModListWLN cell.
  • the WLN split data bearer is carried or reconfigured as an MCG data bearer or the WLN split data bearer is reconfigured as a WLN inseparable data bearer.
  • a user equipment comprising: a receiving unit configured to receive a RRC connection reconfiguration message; and a determining unit configured to determine whether the received RRC connection reconfiguration message is received Including indication information indicating that the user equipment reconfigures the first type of data bearer to a second type of data bearer different from the first type; and the reconfiguration unit is configured to: if the received radio resource control Connection The reconfiguration message includes the indication information, and the user equipment is reconfigured according to the radio resource control connection reconfiguration message; wherein the first type of data bearer includes a primary cell group MCG data bearer or a wireless local area network WLN split data bearer, The two types of data bearers include MCG data bearers, WLN split data bearers, or WLN inseparable data bearers.
  • the first type of data bearer is an MCG data bearer
  • the second type of data bearer is a WLN split data bearer
  • the reconfiguration unit is configured to: according to the radio resource control connection reconfiguration message included The configuration information related to the adaptation entity, reconfiguring the adaptation entity; if the RRC connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, reconfiguring the PDCP entity;
  • the RRC connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel, and reconfigures the MCG RLC entity and the MCG DTCH logical channel.
  • the first type of data bearer is an MCG data bearer
  • the second type of data bearer is a WLN split data bearer
  • the reconfiguration unit is configured to: according to the radio resource control connection reconfiguration message included And the configuration information related to the adaptation entity, establishing an adaptation entity; if the RRC connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, reconfiguring the PDCP entity; if the wireless The resource control connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel, and reconfigures the MCG RLC entity and the MCG DTCH logical channel.
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is an MCG data bearer
  • the reconfiguration unit is configured to: if the radio resource control connection reconfiguration message is included
  • the configuration information related to the packet data convergence protocol PDCP entity is reconfigured to the PDCP entity; if the RRC connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel Reconfiguring the MCG RLC entity and the MCG DTCH logical channel; reconfiguring the adapted entity according to the configuration information related to the adaptation entity included in the RRC connection reconfiguration message.
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is an MCG data bearer
  • the reconfiguration unit is configured to: if the radio resource control connection reconfiguration message is included
  • the configuration information related to the packet data convergence protocol PDCP entity is reconfigured to the PDCP entity; if the RRC connection reconfiguration message includes configuration information related to the radio link control RLC entity and the MCG dedicated traffic channel DTCH logical channel Reconfiguring the MCG RLC entity and the MCG DTCH logical channel; releasing the adaptation entity.
  • the first type of data bearer is a WLN split data bearer
  • the second type of data bearer is a WLN inseparable data bearer
  • the reconfiguration unit is configured to: release the MCG RLC entity and the MCG DTCH logical channel; And if the radio resource control connection reconfiguration message includes configuration information related to the packet data convergence protocol PDCP entity, reconfiguring the PDCP entity; if the radio resource control connection reconfiguration message includes configuration related to the adaptation entity Information, reconfiguring the adapted entity.
  • the user equipment further comprises: a reconstruction unit configured to reconstruct the PDCP entity.
  • determining whether to reestablish the PDCP entity is by transmitting RRC signaling to the user equipment.
  • the indication information includes a drb-TypeChangWLN cell carried in a drb-ToAddModList cell and a drb-TypeWLN cell carried in a drb-ToAddModListWLN cell, where the drb-ToAddModList cell is a set of needs An increased or modified data bearer, the drb-TypeChangWLN cell is used to indicate whether to reconfigure a WLN split data bearer or a WLN inseparable data bearer into an MCG data bearer, the drb-ToAddModListWLN cell is a group that needs to be added or modified WLN data bearer, the drb-Type WLN cell indicates the type of corresponding data bearer.
  • determining whether to reconfigure the MCG data bearer into WLN separated data according to whether the value of the drb-Type WLN cell and the data bearer corresponding to the drb-Type WLN cell are included in the drb-ToAddModList cell and the drb-ToAddModListWLN cell.
  • the WLN split data bearer is carried or reconfigured as an MCG data bearer or the WLN split data bearer is reconfigured as a WLN inseparable data bearer.
  • 1 is a schematic diagram of an LTE-WLN integration and interoperability deployment option 2C;
  • FIG. 2 is a schematic diagram of an LTE-WLN integration and interoperability deployment option 3C;
  • FIG. 3 is a schematic flowchart of a method for reconfiguring an MCG DRB into a WLN split DRB according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for reconfiguring an MCG DRB into a WLN inseparable DRB according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for reconfiguring a WLN split DRB into an MCG DRB according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a method for reconfiguring a WLN split DRB into a WLN inseparable DRB according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a method for reconfiguring a WLN inseparable DRB into an MCG DRB according to an embodiment of the present invention
  • FIG. 8 is a flowchart of a method for reconfiguring a WLN inseparable DRB into a WLN split DRB according to an embodiment of the present invention
  • FIG. 9 is a flowchart of a method for carrying, in an RRC connection reconfiguration message, an indication information indicating that a user equipment reconfigures one type of data bearer to another type of data bearer.
  • FIG. 10 is a flowchart of another method for carrying, in an RRC connection reconfiguration message, an indication information indicating that a user equipment reconfigures one type of data bearer to another type of data bearer.
  • FIG. 11 is a block diagram showing a user equipment according to an embodiment of the present invention.
  • the embodiments of the present invention are specifically described below with the LTE Rel-13 mobile communication system and its subsequent evolved versions as example application environments.
  • the present invention is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as future 5G cellular communication systems.
  • the implementation example of the technical solution of the present invention is described herein only for the case where the primary base station and one WLN cooperate to provide communication services for the user equipment, those skilled in the art will appreciate that the technical solution of the present invention is equally applicable to the primary base station and one.
  • the above WLN cooperates to provide a communication service for the user equipment.
  • the user equipment performs an increase (establishment) and reconfiguration process of the data bearer according to the received RRC Connection Reconfiguration (RRCConnectionReconfiguration) message.
  • the RRCConnectionReconfiguration message is mainly used to establish/modify/release bearers (RBs), perform handover, establish/modify/release measurements, and the like.
  • the bearer includes a signaling bearer (SRB) and a data bearer (DRB).
  • the data bearer includes MCG DRB, split DRB (bearer of dual connectivity option 3C described in 3GPP Release 12), SCG DRB (bearer of dual connectivity option 1A described in 3GPP Release 12), WLN split DRB and WLN inseparable DRB A bearer for transmitting user data.
  • drb-ToAddModListWLN cell a set of WLN DRBs that need to be added or modified;
  • drb-ToAddModList cell A set of DRBs that need to be added or modified
  • Adaptation-Config cell includes configurable parameters for configuring an adaptation entity corresponding to the WLN DRB;
  • pdcp-Config cell Configurable PDCP parameter containing DRB
  • drb-Identity cell data bearer identifier
  • rlc-Config cell includes configuration information of an RLC entity corresponding to the SRB and the DRB;
  • logicalChannelIdentity cell logical channel identifier
  • logicalChannelConfig cell Contains parameters used to configure the logical channel.
  • Figure 3 shows a flow diagram of a method of reconfiguring an MCG DRB to a WLN split DRB.
  • the method shown in Figure 3 includes the following steps:
  • Step 301 The user equipment receives the RRCConnectionReconfiguration message, and determines whether the message carries indication information indicating that the user equipment reconfigures the MCG DRB to the WLN separated DRB. If yes, performs the correspondence between the WLN DRB and the adaptation entity. Step 302a or step 302b; otherwise, end.
  • step 302a If there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, step 302a is performed; if there is a one-to-one mapping relationship between the WLN DRB and the adaptation entity, step 302b is performed.
  • Step 302a The user reconfigures the adaptation entity according to the Adaptation-Config cell carried in the drb-ToAddModListWLN.
  • the adaptation entity is established.
  • Step 302b The user establishes an adaptation entity according to the Adaptation-Config cell carried in the drb-ToAddModListWLN.
  • Step 303 If the pdcp-Config cell carried in the drb-ToAddModList, reconfigure the PDCP entity according to the pdcp-Config cell.
  • Step 304 If the drc-ToAddModList carries the rlc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell, reconfigure the MCG RLC entity and the MCG DTCH logical channel according to the rlc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell. .
  • step 302a (or 302b), step 303, and step 304 can be arbitrarily changed.
  • the user equipment when the user equipment reconfigures the MCG DRB to the WLN split DRB, re-establish the PDCP entity and the RLC entity, and send a PDCP status report.
  • whether the PDG entity and the RLC entity are re-established and the PDCP status report is sent when the user equipment reconfigures the MCG DRB to the WLN split DRB by using the RRC signaling.
  • FIG. 4 is a flow chart showing a method of reconfiguring an MCG DRB into a WLN inseparable DRB. The method shown in Figure 4 includes the following steps:
  • Step 401 The user equipment receives the RRCConnectionReconfiguration message, and determines the location. Whether the message carries the indication information for instructing the user equipment to reconfigure the MCG DRB as the WLN inseparable DRB; if yes, step 402a or step 402b is performed according to the correspondence between the WLN DRB and the adaptation entity; otherwise, the process ends.
  • step 402a If there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, step 402a is performed. If there is a one-to-one mapping relationship between the WLN DRB and the adaptation entity, step 402b is performed.
  • Step 402a The user reconfigures the adaptation entity according to the Adaptation-Config cell carried in the drb-ToAddModListWLN.
  • an adaptation entity is established.
  • Step 402b The user establishes an adaptation entity according to the Adaptation-Config cell carried in the drb-ToAddModListWLN.
  • Step 403 If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • Step 404 Release the MCG RLC entity and the MCG DTCH logical channel.
  • step 402a (or 402b), step 403, and step 404 can be arbitrarily changed.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDG entity is re-established and the PDCP status report is sent when the user equipment reconfigures the MCG DRB to the WLN split DRB by using RRC signaling.
  • FIG. 5 is a flow chart showing a method of reconfiguring a WLN split DRB into an MCG DRB. The method shown in Figure 5 includes the following steps:
  • Step 501 The user equipment receives the RRCConnectionReconfiguration message, and determines whether the message carries the indication information for instructing the user equipment to reconfigure the WLN separated DRB as the MCG DRB. If yes, the user equipment performs the correspondence between the WLN DRB and the adaptation entity. Step 502a or step 502b; otherwise, end.
  • step 502a If there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, step 502a is performed; if there is a one-to-one mapping relationship between the WLN DRB and the adaptation entity, step 502b is performed.
  • Step 502a If the drb-ToAddModListWLN carries an Adaptation-Config letter The element reconfigures the adaptation entity according to the Adaptation-Config cell.
  • the adaptation entity is released.
  • Step 502b Release the adaptation entity, that is, release related information of the WLN separation DRB reconfigured as MCG DRB in the WLN.
  • Step 503 If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • Step 504 If the drc-ToAddModList carries the rlc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell, reconfigure the MCG RLC entity and the MCG DTCH logical channel according to the rlc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell. . .
  • step 502a (or 502b), step 503, and step 504 can be arbitrarily changed.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDG entity is re-established and the PDCP status report is sent when the user equipment reconfigures the MCG DRB to the WLN split DRB by using RRC signaling.
  • FIG. 6 is a flow chart showing a method of reconfiguring a WLN split DRB into a WLN inseparable DRB. The method shown in Figure 6 includes the following steps:
  • Step 601 The user equipment receives the RRCConnectionReconfiguration message, and determines whether the message carries indication information indicating that the user equipment reconfigures the WLN split DRB as a WLN inseparable DRB. If yes, step 602 is performed; otherwise, the process ends.
  • Step 602 If the Adaptation-Config cell is carried in the drb-ToAddModListWLN, the adaptation entity is reconfigured according to the Adaptation-Config cell.
  • Step 603 If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • Step 604 Release the MCG RLC entity and the MCG DTCH logical channel.
  • step 602, step 603, and step 604 can be arbitrarily changed.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the user equipment reconfigures the MCG DRB to the WLN and the DRB is reconfigured by the RRC signaling.
  • the entity sends a PDCP status report.
  • FIG. 7 is a flow chart showing a method of reconfiguring a WLN inseparable DRB into an MCG DRB. The method shown in Figure 7 includes the following steps:
  • Step 701 The user equipment receives the RRCConnectionReconfiguration message, and determines whether the message carries the indication information for instructing the user equipment to reconfigure the WLN inseparable DRB as the MCG DRB. If yes, according to the correspondence between the WLN DRB and the adaptation entity. Step 702a or step 702b is performed; otherwise, it ends.
  • step 702a If there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, step 702a is performed; if there is a one-to-one mapping relationship between the WLN DRB and the adaptation entity, step 702b is performed.
  • Step 702a If the Adaptation-Config cell is carried in the drb-ToAddModListWLN, the adaptation entity is reconfigured according to the Adaptation-Config cell.
  • the adaptation entity is released.
  • Step 702b Release the adaptation entity, that is, release related information of the WLN inseparable DRB reconfigured in the WLN as the MCG DRB.
  • Step 703 If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • Step 704 Establish an MCG RLC entity and an MCG DTCH logical channel according to the rrc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell in the drb-ToAddModList.
  • step 702a (or 702b), step 703, and step 704 can be arbitrarily changed.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDG entity is re-established and the PDCP status report is sent when the user equipment reconfigures the MCG DRB to the WLN split DRB by using RRC signaling.
  • Figure 8 shows a flow diagram of a method for reconfiguring a WLN inseparable DRB to a WLN split DRB.
  • the method shown in Figure 8 includes the following steps:
  • Step 801 The user equipment receives the RRCConnectionReconfiguration message, and determines whether the message carries the information indicating that the user equipment reconfigures the WLN inseparable DRB as The WLN separates the indication information of the DRB; if yes, step 802 is performed; otherwise, it ends.
  • Step 802 If the Adaptation-Config cell is carried in the drb-ToAddModListWLN, the adaptation entity is reconfigured according to the Adaptation-Config cell.
  • Step 803 If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • Step 804 Establish an MCG RLC entity and an MCG DTCH logical channel according to the rrc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell in the drb-ToAddModList.
  • step 802a (or 802b), step 803, and step 804 can be arbitrarily changed.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDG entity is re-established and the PDCP status report is sent when the user equipment reconfigures the MCG DRB to the WLN split DRB by using RRC signaling.
  • the data bearer includes at least: a WLN split DRB, a WLN splittable DRB, and an MCG DRB.
  • the user equipment determines whether to reconfigure a certain type according to the drb-TypeChangWLN cell carried in the drb-ToAddModList cell and the drb-TypeWLN cell carried in the drb-ToAddModListWLN cell.
  • the data is hosted for other types of data.
  • the drb-TypeChangWLN cell is used to indicate whether the WLN DRB (including the WLN split DRB, the WLN inseparable DRB) is reconfigured with the MCG DRB.
  • the drb-Type WLN cell indicates a type of the corresponding DRB; the user equipment according to the value of the drb-Type WLN cell and whether the DRB corresponding to the drb-Type WLN cell is included in the drb-ToAddModList cell and the drb-ToAddModListWLN cell To determine whether to reconfigure the MCG DRB as a WLN DRB or reconfigure the WLN inseparable DRB as a WLN split DRB or reconfigure the WLN split DRB as a WLN inseparable DRB.
  • the value of the drb-TypeChangWLN cell is represented as: toMCG (WLN DRB reconfiguration is MCG DRB); the value of the drb-TypeWLN cell is represented as: WLNsplit (indicating that the corresponding DRB is a WLN separated DRB) ), WLNnonsplit (indicating that the corresponding DRB is WLN inseparable DRB).
  • WLNsplit indicating that the corresponding DRB is a WLN separated DRB
  • WLNnonsplit indicating that the corresponding DRB is WLN inseparable DRB.
  • the drb-TypeChangWLN letter The value of the meta and drb-Type WLN cells includes, but is not limited to, the value.
  • the method shown in Figure 9 includes the following steps (performed by the user equipment):
  • Step 9001 The user equipment UE receives the RRCConnectionReconfiguration message.
  • Step 9002 Determine, according to the configured DRB in the UE, the ID of the DRB is drb-Identity, determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModList cell, and the drb-Identity is included in the drb-ToAddModList cell. ? If yes, go to step 9003; otherwise, go to step 9016;
  • Step 9003 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModListWLN cell and the drb-Identity is included in the drb-ToAddModListWLN cell? If yes, go to step 9004; otherwise, go to step 9010;
  • Step 9004 Determine whether the DRB of the configured ID of the drb-Identity in the UE is an MCG DRB? If yes, go to step 9005; otherwise, go to step 9007;
  • Step 9005 Determine whether the drb-ToAddModListWLN cell contains a drb-TypeWLN cell associated with the drb-Identity and the drb-TypeWLN value is WLNsplit? If yes, go to step 9006;
  • Step 9006 Reconfiguring the MCG DRB as a WLN separation DRB
  • Step 9007 Determine whether the configured DRB of the drb-Identity in the UE is a WLN inseparable DRB. If yes, step 9008 is performed;
  • Step 9008 Determine whether the drb-ToAddModListWLN cell contains a drb-TypeWLN cell associated with the drb-Identity and the drb-TypeWLN value is WLNsplit? If yes, go to step 9009;
  • Step 9009 Reconfigure the WLN inseparable DRB to be a WLN split DRB
  • Step 9010 Determine whether the configured DRB of the drb-Identity in the UE is a WLN split DRB. If yes, go to step 9011; otherwise, go to step 9013;
  • Step 9011 Determine whether the drb-ToAddModList cell includes a drb-TypeChangeWLN cell associated with the drb-Identity and the drb-TypeChangeWLN value is toMCG? If yes, go to step 9012;
  • Step 9012 Reconfigure the WLN to separate the DRB and reconfigure the MCG DRB.
  • Step 9013 Determine whether the configured DRB of the ID of the drb-Identity in the UE is a WLN inseparable DRB. If yes, go to step 9014;
  • Step 9014 Determine whether the drb-ToAddModList cell contains a drb-TypeChangeWLN cell associated with the drb-Identity and the drb-TypeChangeWLN value is toMCG? If yes, go to step 9015;
  • Step 9015 Reconfigure the WLN inseparable DRB as MCG DRB;
  • Step 9016 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModListWLN cell and the drb-Identity is included in the drb-ToAddModListWLN cell. If yes, go to step 9017; Step 9017: Determine whether the configured DRB of the ID of the drb-Identity in the UE is MCG DRB? If yes, go to step 9018; otherwise, go to step 9020;
  • Step 9018 Determine whether the drb-ToAddModListWLN cell includes a drb-TypeWLN cell corresponding to the drb-Identity and the drb-TypeWLN value is WLNnonsplit? If yes, go to step 9019;
  • Step 9019 Reconfiguring the MCG DRB to the WLN inseparable DRB;
  • Step 9020 Determine whether the configured DRB of the ID of the drb-Identity in the UE is a WLN split DRB. If yes, step 9021 is performed; step 9021: determining whether the drb-ToAddModListWLN cell includes a drb-TypeWLN cell corresponding to the drb-Identity and the drb-TypeWLN value is WLNnonsplit? If yes, go to step 9022;
  • Step 9022 Reconfigure the WLN split DRB as a WLN inseparable DRB
  • the method shown in Figure 10 includes the following steps (performed by the user equipment UE):
  • Step 1001 The UE receives an RRCConnectionReconfiguration message.
  • Step 1002 Determine whether the DRB is a WLN split DRB for the DRB whose ID is drb-Identity configured in the UE. If yes, go to step 1003; otherwise, go to step 1008;
  • Step 1003 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModList cell, and the drb-ToAddModList cell includes the drb-Identity and the drb-ToAddModList cell further includes a drb corresponding to the drb-Identity -TypeChangeWLN cell and the value of the drb-TypeChangeWLN is toMCG? If yes, go to step 1004; otherwise, go to step 1005;
  • Step 1004 Reconfigure the WLN split DRB to MCG DRB.
  • Step 1005 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModListWLN cell and the drb-ToAddModListWLN cell includes the drb-Identity and the drb-ToAddModListWLN cell further includes a drb- corresponding to the drb-Identity TypeWLN cell and the value of the drb-TypeWLN is WLNnonsplit? If yes, go to step 1006; otherwise, go to step 1007;
  • Step 1006 Reconfigure the WLN split DRB as a WLN inseparable DRB
  • Step 1007 Reconfigure the WLN to separate the DRB.
  • Step 1008 Determine whether the DRB whose ID is drb-Identity configured in the UE is a WLN inseparable DRB. If yes, go to step 1009; otherwise, go to step 1014;
  • Step 1009 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModList cell, and the drb-ToAddModList cell includes the drb-Identity and the drb-ToAddModList cell further includes a drb- corresponding to the drb-Identity.
  • TypeChangeWLN cell and the value of the drb-TypeChangeWLN is toMCG? If yes, go to step 1010; otherwise, go to step 1011;
  • Step 1010 Reconfigure the WLN inseparable DRB to be an MCG DRB.
  • Step 1011 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModListWLN cell and the drb-ToAddModListWLN cell includes the drb-Identity and the drb-ToAddModListWLN cell further includes a drb-TypeWLN corresponding to the drb-Identity The cell and the value of the drb-TypeWLN is WLNsplit? If yes, go to step 1012; otherwise, go to step 1013;
  • Step 1012 Reconfigure the WLN inseparable DRB as a WLN split DRB
  • Step 1013 Reconfigure the WLN inseparable DRB
  • Step 1014 Determine whether the DRB whose ID is drb-Identity configured in the UE is an MCG DRB. If yes, go to step 1015;
  • Step 1015 Determine whether the RRCConnectionReconfiguration message includes a drb-ToAddModListWLN cell and the drb-ToAddModListWLN cell includes the drb-Identity and the drb-ToAddModListWLN cell further includes a drb-TypeWLN corresponding to the drb-Identity The cell and the value of the drb-TypeWLN is WLNnonsplit? If yes, go to step 1016; otherwise, go to step 1017;
  • Step 1016 Reconfigure the MCG DRB as a WLN inseparable DRB.
  • Step 1017 Determine whether the RRCConnectionReconfiguration message is included a drb-ToAddModListWLN cell and the drb-ToAddModListWLN cell includes the drb-Identity and the drb-ToAddModListWLN cell further includes a drb-Type WLN cell corresponding to the drb-Identity and the value of the drb-TypeWLN For WLNsplit? If yes, go to step 9018;
  • Step 1018 Reconfigure the MCG DRB to reconfigure the WLN to separate the DRB.
  • step 9012 and step 1004 the process of reconfiguring the WLN to separate the DRB into the MCG DRB may adopt the process shown in FIG. 5.
  • step 9022 and step 1006 the process of reconfiguring the WLN separation DRB to the WLN inseparable DRB may employ the process shown in FIG. 6.
  • step 9015 and step 1010 the process of reconfiguring the WLN inseparable DRB to be the MCG DRB process may be performed.
  • step 9009 and step 1012 the process of reconfiguring the WLN inseparable DRB to the WLN separation DRB may employ the process shown in FIG.
  • step 9006 and step 1018 the process of reconfiguring the MCG DRB to the WLN separation DRB may adopt the process shown in FIG.
  • the process of reconfiguring the MCG DRB to the WLN inseparable DRB in steps 9019 and 1016 may employ the process shown in FIG.
  • the user equipment establishing the WLN separation DRB includes the following process: if there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, the adaptation entity is reconfigured according to the Adaptation-Config cell carried in the drb-ToAddModListWLN. .
  • the adaptation entity is established. If there is a one-to-one mapping relationship between the WLN DRB and the adaptation entity, the adaptation entity is established according to the Adaptation-Config cell carried in the drb-ToAddModListWLN.
  • the PDCP entity is established according to the pdcp-Config cell carried in the drb-ToAddModList, and the PDCP entity is configured by using the MCG security configuration information.
  • the MCG RLC entity and the MCG DTCH logical channel are established according to the rrc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell carried in the drb-ToAddModList.
  • the user equipment establishing the WLN inseparable DRB includes the following process: if there is a many-to-one mapping relationship between the WLN DRB and the adaptation entity, the adaptation is adapted according to the Adaptation-Config cell carried in the drb-ToAddModListWLN. entity.
  • the adaptation entity is established. If there is a one-to-one mapping between the WLN DRB and the adaptation entity, according to the information carried in drb-ToAddModListWLN
  • the Adaptation-Config cell establishes an adaptation entity.
  • the PDCP entity is established according to the pdcp-Config cell carried in the drb-ToAddModList, and the PDCP entity is configured by using the MCG security configuration information.
  • the PDCP entity is established according to the pdcp-Config cell carried in the drb-ToAddModListWLN, and the PDCP entity is configured by using the MCG security configuration information.
  • the user equipment reconfiguring the WLN split DRB includes the following process: if the Adaptation-Config cell is carried in the drb-ToAddModListWLN, the adaptation entity is reconfigured according to the Adaptation-Config cell. If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell. Optionally, if the drd-ToAddModListWLN carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • the MCG RLC entity and the MCG DTCH logical channel are reconfigured according to the rlc-Config cell, the logicalChannelIdentity cell, and the logicalChannelConfig cell.
  • the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDCP entity is re-established and the PDCP status report is sent when the user equipment reconfigures the WLN to separate the DRB is configured by using RRC signaling.
  • the user equipment reconfiguring the WLN split DRB includes the following process: if the Adaptation-Config cell is carried in the drb-ToAddModListWLN, the adaptation entity is reconfigured according to the Adaptation-Config cell. If the drb-ToAddModList carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell. Optionally, if the drd-ToAddModListWLN carries the pdcp-Config cell, the PDCP entity is reconfigured according to the pdcp-Config cell.
  • the PDCP entity when the user equipment reconfigures the WLN inseparable DRB, the PDCP entity is re-established, and the PDCP status report is sent.
  • whether the PDCP entity is re-established and the PDCP status report is sent when the user equipment reconfigures the WLN non-separable DRB is configured by using RRC signaling.
  • FIG. 11 is a block diagram showing a user equipment according to an embodiment of the present invention.
  • the user equipment 1100 includes a receiving unit 1101, a determining unit 1102, and a reconfiguration unit 1103.
  • user equipment 1100 may also include a reconstruction unit 1104.
  • the receiving unit 1101 may be configured to receive a radio resource control connection reconfiguration message.
  • the determining unit 1102 may be configured to determine whether the received RRC connection reconfiguration message includes indication information, the indication information indicating that the user equipment reconfigures the first type of data bearer to a second type different from the first type Data hosting.
  • the reconfiguration unit 1103 may be configured to: if the received radio resource control connection reconfiguration message includes indication information, reconfigure the user equipment according to the radio resource control connection reconfiguration message.
  • Reconstruction unit 1104 can be configured to reconstruct the PDCP entity.
  • the first type of data bearer may comprise a primary cell group MCG data bearer, a wireless local area network WLN split data bearer or a wireless local area network WLN inseparable data bearer.
  • the second type of data bearer includes an MCG data bearer, a WLN split data bearer, or a WLN inseparable data bearer.
  • various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • DSP digital signal processing
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, generation, for generation or encoding on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • Codes and/or other data structures, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images, shared databases, etc. in one or more modules.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

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Abstract

提供了一种由用户设备执行的方法，包括：接收无线资源控制连接重配置消息；确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载；以及如果所接收的无线资源控制连接重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置；其中，第一类型的数据承载包括主小区群MCG数据承载或无线局域网WLN分离数据承载，第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。还提供了一种相应的用户设备。

Description

用于重配置数据承载的方法和用户设备 技术领域
本发明涉及移动通信，具体地涉及一种重配置数据承载的方法和相应的用户设备。
背景技术
第三代伙伴计划(3GPP)长期演进(LTE)系统与无线局域网(Wireless Local Area Network，WLAN)在核心网层面的互操作和集成已经在3GPP标准化文档中定义。3GPP LTE版本12对LTE与WLAN在RAN层面的互操作和集成进行了研究(可参见3GPP TR37.834)。
在3GPP TSG RAN#67次会议上通过了在3GPP LTE版本13中进行增强LTE-WLAN在RAN层面的集成和互操作的研究提议(参见3GPP会议提案RP-150510)。增强LTE-WLAN在RAN层面的集成和互操作的研究包括：增强LTE-WLAN在RAN层面的集成和增强LTE-WLAN在RAN层面的互操作。LTE-WLAN在RAN层面的集成是指处于RRC连接状态的用户设备被配置成同时利用LTE和WLAN所提供的无线资源，并且所述集成不对WLAN的MAC层已有标准造成影响。增强LTE-WLAN在RAN层面的集成是基于3GPP LTE版本12所定义的双连接选项2C和3C。
图1和图2示出的选项2C和3C包含两个逻辑节点：主基站(MeNB)和WLAN逻辑节点(WLN)。主基站是指支持LTE-WLN集成和互操作的基站，它负责维护用户设备的无线资源管理测量配置并且基于接收到的测量报告或流量状况或承载类型等向WLN请求为用户设备提供额外的资源。WLN接收到主基站的请求后为用户设备提供数据传输服务或因没有足够的资源而拒绝所述请求。WLN是指具有从主基站中接收用户数据，并利用WLAN所提供的无线资源将数据转发给用户设备功能的逻辑节点。
图1示出的选项2C具有如下特征：(1)主基站通过S1-U接口与业务网关通信；(2)数据承载(DRB)在主基站中不分离；(3)位于主基站的分组数据汇聚协议PDCP实体将来自业务网关的PDCP SDU封装成WLN 的接收实体(称为适配实体或WLN实体)所要求的格式，并发送给所述适配实体。所述适配实体按要求封装从MeNB的PDCP实体接收的数据，然后通过WLAN无线资源传输给用户设备(UE)。这里，用户设备可以是用户终端、用户节点、移动终端或平板电脑。在以下描述中，将具有选项2C特征的数据承载称为WLN不可分离数据承载(WLN不可分离DRB)。
图2示出的选项3C具有如下特征：(1)主基站通过S1-U接口与业务网关通信；(2)数据承载在主基站中分离；(3)对于分离数据承载，在主基站中有对应无线链路控制RLC实体。位于主基站的PDCP实体将来自业务网关的PDCP SDU封装为PDCP PDU，并将封装后的部分PDCP PDU通过MeNB的RLC实体、MAC实体和物理层发送给UE，剩余PDCP PDU按要求进一步封装后发送给WLN的适配实体，并通过WLAN提供的无线资源发送给UE。在本发明的后续描述中，将具有选项3C特征的数据承载称为WLN分离数据承载(WLN分离DRB)。
本发明中提及的主小区群(Master Cell Group，MCG)是指UE的一组服务小区，这组服务小区包含一个主小区(PCell)和0个或多个辅小区(SCell)。基于选项2C和3C的架构，在LTE-WLAN集成和互操作系统中，如果数据承载传输的用户数据仅利用主小区群进行传输(即数据承载传输的用户数据经由主小区群的PDCP实体、RLC实体、MAC实体及物理层PHY传输给UE)，则此数据承载称为主小区群数据承载(MCG DRB)。如果数据承载传输的用户数据同时利用主小区群的无线资源和WLAN的无线资源进行传输(即数据承载传输的一部分用户数据经由主小区群的PDCP实体、RLC实体、MAC实体及物理层PHY传输给UE，另一部分用户数据经由主小区群的PDCP实体和WLAN传输给UE)，则此数据承载称为WLN分离数据承载(WLN分离DRB)。如果数据承载传输的用户数据借助主小区群的PDCP实体对数据进行封装并利用WLAN所提供的无线资源进行传输，则此数据承载称为WLN不可分离数据承载(WLN不可分离DRB)。换言之，WLN不可分离DRB的用户数据不利用LTE提供的无线资源传输，而仅利用MCG的PDCP实体对数据进行封装后发送给WLN并通过WLAN无线资源传输给用户设备。在本发明中，将WLN分离DRB和WLN不可分离DRB统称为WLN数据承载(WLN DRB)。即本发明中提及的WLNDRB既可以表示WLN分离DRB，也可以表示WLN不可分离DRB。
在LTE-WLAN集成系统中，基于主基站和WLN具有的可用无线资源的情况，需要在主基站和WLN间动态的进行数据承载重配置。例如，当主基站不能为UE提供足够的无线资源时，可以请求WLN为UE提供无线资源，即将MCG DRB重配置为WLN分离DRB或WLN不可分离DRB。当主基站和WLN同时为UE服务时(即基于选项3C的架构)，如果在一段时间内主基站有更多的无线资源可以提供给UE而WLN没有足够的无线资源提供给UE时，主基站可以将数据承载重配置到主基站，即将WLN分离DRB重配置为MCG DRB；如果在一段时间内，主基站没有无线资源可以提供给UE但WLN可以为UE提供更多的无线资源时，主基站可以将数据承载重配置到WLN，即将WLN分离DRB重配置为WLN不可分离DRB。当WLN借助主基站的PDCP实体对数据封装后单独为用户提供无线资源进行数据传输时(即基于选项2C的架构)，如果在一段时间内主基站有更多的无线资源可以提供给UE或WLN没有足够的资源提供给UE时，主基站可以将数据承载重配置到主基站，即将WLN不可分离DRB重配置为MCG DRB；如果在一段时间内主基站可以为UE提供部分无线资源，此时可将WLN不可分离DRB重配置为WLN分离DRB。
发明内容
本发明的目的在于解决主基站和WLN之间的无线承载重配置的问题。
根据本发明的一个方面，提供了一种由用户设备执行的方法，包括：接收无线资源控制连接重配置消息；确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载；以及如果所接收的无线资源控制连接重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置；其中，第一类型的数据承载包括主小区群MCG数据承载或无线局域网WLN分离数据承载，第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。
在一个实施例中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重配置包括：根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
在一个实施例中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重配置包括：根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，建立适配实体；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进 行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；释放适配实体。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是WLN不可分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：释放MCG RLC实体和MCG DTCH逻辑信道；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与适配实体有关的配置信息，对适配实体进行重配置。
在一个实施例中，该方法还包括：重建PDCP实体。
在一个实施例中，通过向用户设备发送RRC信令来确定是否重建PDCP实体。
在一个实施例中，所述指示信息包括drb-ToAddModList信元中携带的drb-TypeChangWLN信元以及drb-ToAddModListWLN信元中携带的drb-TypeWLN信元，所述drb-ToAddModList信元是一组需要增加或修改的数据承载，所述drb-TypeChangWLN信元用于指示是否将WLN分离数据承载或WLN不可分离数据承载重配置为MCG数据承载，所述drb-ToAddModListWLN信元是一组需要增加或修改的WLN数据承载，所述drb-TypeWLN信元表示对应的数据承载的类型。优选地，根据drb-TypeWLN信元的取值以及drb-TypeWLN信元对应的数据承载是否包含在drb-ToAddModList信元和drb-ToAddModListWLN信元中，确定是否将MCG数据承载重配置为WLN分离数据承载或将WLN分离数据承载重配置为MCG数据承载或将WLN分离数据承载重配置为WLN不可分离数据承载。
根据本发明的一个方面，提供了一种用户设备，包括：接收单元，被配置为接收无线资源控制连接重配置消息；确定单元，被配置为确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载；以及重配置单元，被配置为：如果所接收的无线资源控制连接 重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置；其中，第一类型的数据承载包括主小区群MCG数据承载或无线局域网WLN分离数据承载，第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。
在一个实施例中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，所述重配置单元被配置为：根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
在一个实施例中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，所述重配置单元被配置为：根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，建立适配实体；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，所述重配置单元被配置为：如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，所述重配置单元被配置为：如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；释放适配实体。
在一个实施例中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是WLN不可分离数据承载，所述重配置单元被配置为：释放MCG RLC实体和MCG DTCH逻辑信道；如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；如果所述无线资源控制连接重配置消息中包含与适配实体有关的配置信息，对适配实体进行重配置。
在一个实施例中，该用户设备还包括：重建单元，被配置为重建PDCP实体。
在一个实施例中，通过向用户设备发送RRC信令来确定是否重建PDCP实体。
在一个实施例中，所述指示信息包括drb-ToAddModList信元中携带的drb-TypeChangWLN信元以及drb-ToAddModListWLN信元中携带的drb-TypeWLN信元，所述drb-ToAddModList信元是一组需要增加或修改的数据承载，所述drb-TypeChangWLN信元用于指示是否将WLN分离数据承载或WLN不可分离数据承载重配置为MCG数据承载，所述drb-ToAddModListWLN信元是一组需要增加或修改的WLN数据承载，所述drb-TypeWLN信元表示对应的数据承载的类型。优选地，根据drb-TypeWLN信元的取值以及drb-TypeWLN信元对应的数据承载是否包含在drb-ToAddModList信元和drb-ToAddModListWLN信元中，确定是否将MCG数据承载重配置为WLN分离数据承载或将WLN分离数据承载重配置为MCG数据承载或将WLN分离数据承载重配置为WLN不可分离数据承载。
附图说明
通过下文结合附图的详细描述，本发明的上述和其它特征将会变得更加明显，其中：
图1为LTE-WLN集成和互操作部署选项2C的示意图；
图2为LTE-WLN集成和互操作部署选项3C的示意图；
图3为本发明实施例提供的将MCG DRB重配置为WLN分离DRB方法的流程示意图；
图4为本发明实施例提供的将MCG DRB重配置为WLN不可分离DRB方法的流程图；
图5为本发明实施例提供的将WLN分离DRB重配置为MCG DRB方法的流程图；
图6为本发明实施例提供的将WLN分离DRB重配置为WLN不可分离DRB方法的流程图；
图7为本发明实施例提供的将WLN不可分离DRB重配置为MCG DRB方法的流程图；
图8为本发明实施例提供的将WLN不可分离DRB重配置为WLN分离DRB方法的流程图；
图9为本发明实施例提供的在RRC连接重配置消息中携带用于指示用户设备将一种类型的数据承载重配置为另一类型的数据承载的指示信息的方法流程图。
图10为本发明实施例提供的另一在RRC连接重配置消息中携带用于指示用户设备将一种类型的数据承载重配置为另一类型的数据承载的指示信息的方法流程图。
图11是示出了根据本发明实施例的用户设备的框图。
具体实施方式
下面，通过结合附图对本发明的具体实施例的描述，本发明的原理和实现将会变得明显。应当注意的是，本发明不应局限于下文所述的具体实施例。另外，为了简便起见，省略了对于本发明没有直接关联的公知技术 的详细描述，以防止对本发明的理解造成混淆。
下文以LTE Rel-13移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施例。然而，需要指出的是，本发明不限于以下实施例，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统。另外，虽然此处仅针对主基站和一个WLN协同为用户设备提供通信服务的情形描述了本发明技术方案的实现示例，本领域技术人员将意识到本发明的技术方案同样适用于主基站和一个以上的WLN协同为用户设备提供通信服务的情形。
在LTE系统中，用户设备根据接收到的RRC连接重配置(RRCConnectionReconfiguration)消息进行数据承载的增加(建立)和重配置过程。所述RRCConnectionReconfiguration消息主要用来建立/修改/释放承载(RB)、执行切换、建立/修改/释放测量等。所述承载包括信令承载(SRB)和数据承载(DRB)。所述数据承载包括MCG DRB、分离DRB(3GPP版本12中描述的双连接选项3C的承载)、SCG DRB(3GPP版本12中描述的双连接选项1A的承载)、WLN分离DRB和WLN不可分离DRB等用于传输用户数据的承载。
下面，对本文中涉及的包含在RRCConnectionReconfiguration消息中的参数含义统一进行说明。此外，本文中提及的参数如果命名与3GPP TS36.331中的相同，则其表示的含义和信元间的包含关系也与3GPP TS36.331中的相同。
drb-ToAddModListWLN信元：一组需要增加或修改的WLN DRB；
drb-ToAddModList信元：一组需要增加或修改的DRB；
Adaptation-Config信元：包含用于配置WLN DRB所对应的适配实体的可配置参数；
pdcp-Config信元：包含DRB的可配置的PDCP参数；
drb-Identity信元：数据承载标识；
rlc-Config信元：包含SRB和DRB对应的RLC实体的配置信息；
logicalChannelIdentity信元：逻辑信道标识；
logicalChannelConfig信元：包含用于配置逻辑信道的参数。
图3示出的是将MCG DRB重配置为WLN分离DRB方法的流程图。图3所示的方法包含如下步骤：
步骤301：用户设备接收RRCConnectionReconfiguration消息，判断所述消息中是否携带用于指示用户设备将MCG DRB重配置为WLN分离DRB的指示信息；如果是，则根据WLN DRB与适配实体间的对应关系执行步骤302a或步骤302b；否则，结束。
如果WLN DRB与适配实体间存在多对一的映射关系，则执行步骤302a；如果WLN DRB与适配实体间存在一对一的映射关系，则执行步骤302b。
步骤302a：用户根据drb-ToAddModListWLN中携带的Adaptation-Config信元重配置适配实体。
可选的，如果所述WLN中没有适配实体，即由MCG DRB重配置的WLN分离DRB是适配实体的第一个WLN DRB，则建立适配实体。
步骤302b：用户根据drb-ToAddModListWLN中携带的Adaptation-Config信元建立适配实体。
步骤303：如果drb-ToAddModList中携带的pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤304：如果drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元，则根据所述rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元重配置MCG RLC实体和MCG DTCH逻辑信道。
需要说明的是，步骤302a(或302b)、步骤303、步骤304的执行顺序可任意改变。
可选的，用户设备将MCG DRB重配置为WLN分离DRB时，重建(re-establish)PDCP实体和RLC实体，并发送PDCP状态报告(PDCP status report)。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP实体和RLC实体并发送PDCP状态报告。
图4示出的是将MCG DRB重配置为WLN不可分离DRB方法的流程示意图。图4所示的方法包含如下步骤：
步骤401：用户设备接收RRCConnectionReconfiguration消息，判断所 述消息中是否携带用于指示用户设备将MCG DRB重配置为WLN不可分离DRB的指示信息；如果是，则根据WLN DRB与适配实体间的对应关系执行步骤402a或步骤402b；否则，结束。
如果WLN DRB与适配实体间存在多对一的映射关系，则执行步骤402a；如果WLN DRB与适配实体间存在一对一的映射关系，则执行步骤402b。
步骤402a：用户根据drb-ToAddModListWLN中携带的Adaptation-Config信元重配置适配实体。
可选的，如果所述WLN中没有适配实体，即由MCG DRB重配置的WLN不可分离DRB是适配实体的第一个WLN DRB，则建立适配实体。
步骤402b：用户根据drb-ToAddModListWLN中携带的Adaptation-Config信元建立适配实体。
步骤403：如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤404：释放MCG RLC实体和MCG DTCH逻辑信道。
需要说明的是，步骤402a(或402b)、步骤403、步骤404的执行顺序可任意改变。
可选的，用户设备将MCG DRB重配置为WLN不可分离DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP实体并发送PDCP状态报告。
图5示出的是将WLN分离DRB重配置为MCG DRB方法的流程示意图。图5所示的方法包含如下步骤：
步骤501：用户设备接收RRCConnectionReconfiguration消息，判断所述消息中是否携带用于指示用户设备将WLN分离DRB重配置为MCG DRB的指示信息；如果是，则根据WLN DRB与适配实体间的对应关系执行步骤502a或步骤502b；否则，结束。
如果WLN DRB与适配实体间存在多对一的映射关系，则执行步骤502a；如果WLN DRB与适配实体间存在一对一的映射关系，则执行步骤502b。
步骤502a：如果drb-ToAddModListWLN中携带Adaptation-Config信 元，则根据所述Adaptation-Config信元重配置适配实体。
可选的，如果将WLN分离DRB重配置为MCG DRB后，适配实体中没有其他WLN DRB，则释放适配实体。
步骤502b：释放适配实体，即释放WLN中重配置为MCG DRB的WLN分离DRB的相关信息。
步骤503：如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤504：如果drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元，则根据所述rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元重配置MCG RLC实体和MCG DTCH逻辑信道。。
需要说明的是，步骤502a(或502b)、步骤503、步骤504的执行顺序可任意改变。
可选的，用户设备将WLN分离DRB重配置为MCG DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP实体并发送PDCP状态报告。
图6示出的是将WLN分离DRB重配置为WLN不可分离DRB方法的流程示意图。图6所示的方法包含如下步骤：
步骤601：用户设备接收RRCConnectionReconfiguration消息，判断所述消息中是否携带用于指示用户设备将WLN分离DRB重配置为WLN不可分离DRB的指示信息；如果是，则执行步骤602；否则，结束。
步骤602：如果drb-ToAddModListWLN中携带Adaptation-Config信元，则根据所述Adaptation-Config信元重配置适配实体。
步骤603：如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤604：释放MCG RLC实体和MCG DTCH逻辑信道。
需要说明的是，步骤602、步骤603、步骤604的执行顺序可任意改变。
可选的，用户设备将WLN分离DRB重配置为WLN不可分离DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP 实体并发送PDCP状态报告。
图7示出的是将WLN不可分离DRB重配置为MCG DRB方法的流程示意图。图7所示的方法包含如下步骤：
步骤701：用户设备接收RRCConnectionReconfiguration消息，判断所述消息中是否携带用于指示用户设备将WLN不可分离DRB重配置为MCG DRB的指示信息；如果是，则根据WLN DRB与适配实体间的对应关系执行步骤702a或步骤702b；否则，结束。
如果WLN DRB与适配实体间存在多对一的映射关系，则执行步骤702a；如果WLN DRB与适配实体间存在一对一的映射关系，则执行步骤702b。
步骤702a：如果drb-ToAddModListWLN中携带Adaptation-Config信元，则根据所述Adaptation-Config信元重配置适配实体。
可选的，如果将WLN不可分离DRB重配置为MCG DRB后，适配实体中没有其他WLN DRB，则释放适配实体。
步骤702b：释放适配实体，即释放WLN中重配置为MCG DRB的WLN不可分离DRB的相关信息。
步骤703：如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤704：根据drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元建立MCG RLC实体和MCG DTCH逻辑信道。
需要说明的是，步骤702a(或702b)、步骤703、步骤704的执行顺序可任意改变。
可选的，用户设备将WLN不可分离DRB重配置为MCG DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP实体并发送PDCP状态报告。
图8示出的是用于将WLN不可分离DRB重配置为WLN分离DRB的方法的流程示意图。图8所示的方法包含如下步骤：
步骤801：用户设备接收RRCConnectionReconfiguration消息，判断所述消息中是否携带用于指示用户设备将WLN不可分离DRB重配置为 WLN分离DRB的指示信息；如果是，则执行步骤802；否则，结束。
步骤802：如果drb-ToAddModListWLN中携带Adaptation-Config信元，则根据所述Adaptation-Config信元重配置适配实体。
步骤803：如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
步骤804：根据drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元建立MCG RLC实体和MCG DTCH逻辑信道。
需要说明的是，步骤802a(或802b)、步骤803、步骤804的执行顺序可任意改变。
可选的，用户设备将WLN不可分离DRB重配置为WLN分离DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备将MCG DRB重配置为WLN分离DRB时是否重建PDCP实体并发送PDCP状态报告。
图9和图10分别示出了两种在RRC连接重配置消息中携带用于指示用户设备将一种类型的数据承载重配置为另一类型的数据承载的指示信息的方法流程图。所述数据承载至少包括：WLN分离DRB、WLN不可分离DRB、MCG DRB。在图9和图10示出的方法中，用户设备根据drb-ToAddModList信元中携带的drb-TypeChangWLN信元和drb-ToAddModListWLN信元中携带的drb-TypeWLN信元来确定是否重配置某一类型的数据承载为其他类型的数据承载。所述drb-TypeChangWLN信元用于指示是否将WLN DRB(包括WLN分离DRB、WLN不可分离DRB)重配置MCG DRB。所述drb-TypeWLN信元表示对应DRB的类型；用户设备根据drb-TypeWLN信元的取值以及所述drb-TypeWLN信元对应的DRB是否包含在drb-ToAddModList信元和drb-ToAddModListWLN信元中，来确定是否将MCG DRB重配置为WLN DRB或将WLN不可分离DRB重配置为WLN分离DRB或将WLN分离DRB重配置为WLN不可分离DRB。在本发明实施例中，drb-TypeChangWLN信元的取值表示为：toMCG(WLN DRB重配置为MCG DRB)；drb-TypeWLN信元的取值表示为：WLNsplit(表示对应的DRB为WLN分离DRB)、WLNnonsplit(表示对应的DRB为WLN不可分离DRB)。需要说明的是，drb-TypeChangWLN信 元和drb-TypeWLN信元取值包括但不限于所述取值方式。
图9所示的方法包含如下步骤(由用户设备执行)：
步骤9001：用户设备UE接收RRCConnectionReconfiguration消息；
步骤9002：对UE中已配置的DRB(所述DRB的标识为drb-Identity)，判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModList信元且所述drb-Identity包含在所述drb-ToAddModList信元中？如果是，则执行步骤9003；否则，执行步骤9016；
步骤9003：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModListWLN信元且所述drb-Identity包含在所述drb-ToAddModListWLN信元中？如果是，则执行步骤9004；否则执行步骤9010；
步骤9004：判断UE中所述已配置的标识为drb-Identity的DRB是否为MCG DRB？如果是，则执行步骤9005；否则执行步骤9007；
步骤9005：判断所述drb-ToAddModListWLN信元是否包含与所述drb-Identity关联的drb-TypeWLN信元且所述drb-TypeWLN值为WLNsplit？如果是，则执行步骤9006；
步骤9006：将MCG DRB重配置为WLN分离DRB；
步骤9007：判断UE中所述已配置的标识为drb-Identity的DRB是否为WLN不可分离DRB？如果是，则执行步骤9008；
步骤9008：判断所述drb-ToAddModListWLN信元是否包含与所述drb-Identity关联的drb-TypeWLN信元且所述drb-TypeWLN值为WLNsplit？如果是，则执行步骤9009；
步骤9009：重配置WLN不可分离DRB为WLN分离DRB；
步骤9010：判断UE中所述已配置的标识为drb-Identity的DRB是否为WLN分离DRB？如果是，则执行步骤9011；否则，执行步骤9013；
步骤9011：判断所述drb-ToAddModList信元是否包含与所述drb-Identity关联的drb-TypeChangeWLN信元且所述drb-TypeChangeWLN值为toMCG？如果是，则执行步骤9012；
步骤9012：将WLN分离DRB重配置MCG DRB；
步骤9013：判断UE中所述已配置的标识为drb-Identity的DRB是否为WLN不可分离DRB？如果是，则执行步骤9014；
步骤9014：判断drb-ToAddModList信元是否包含与所述drb-Identity关联的drb-TypeChangeWLN信元且所述drb-TypeChangeWLN值为toMCG？如果是，则执行步骤9015；
步骤9015：将WLN不可分离DRB重配置为MCG DRB；
步骤9016：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModListWLN信元且所述drb-Identity包含在所述drb-ToAddModListWLN信元中？如果是，则执行步骤9017；步骤9017：判断UE中所述已配置的标识为drb-Identity的DRB是否为MCG DRB？如果是，则执行步骤9018；否则，执行步骤9020；
步骤9018：判断所述drb-ToAddModListWLN信元中是否包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN值为WLNnonsplit？如果是，则执行步骤9019；
步骤9019：将MCG DRB重配置WLN不可分离DRB；
步骤9020：判断UE中所述已配置的标识为drb-Identity的DRB是否为WLN分离DRB？如果是，则执行步骤9021；步骤9021：判断所述drb-ToAddModListWLN信元中是否包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN值为WLNnonsplit？如果是，则执行步骤9022；
步骤9022：将WLN分离DRB重配置为WLN不可分离DRB；
图10所示的方法包含如下步骤(由用户设备UE执行)：
步骤1001：UE接收RRCConnectionReconfiguration消息；
步骤1002：对UE中已配置的标识为drb-Identity的DRB，判断所述DRB是否为WLN分离DRB？如果是，则执行步骤1003；否则，执行步骤1008；
步骤1003：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModList信元且所述drb-ToAddModList信元中包含所述drb-Identity且所述drb-ToAddModList信元中还包含与所述drb-Identity对应的drb-TypeChangeWLN信元且所述drb-TypeChangeWLN的值为toMCG？如果是，则执行步骤1004；否则，执行步骤1005；
步骤1004：将WLN分离DRB重配置为MCG DRB；
步骤1005：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModListWLN信元且所述drb-ToAddModListWLN信元中包含所述drb-Identity且所述drb-ToAddModListWLN信元还包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN的值为WLNnonsplit？如果是，则执行步骤1006；否则，执行步骤1007；
步骤1006：将WLN分离DRB重配置为WLN不可分离DRB；
步骤1007：重配置WLN分离DRB；
步骤1008：判断UE中已配置的所述标识为drb-Identity的DRB是否为WLN不可分离DRB？如果是，则执行步骤1009；否则，执行步骤1014；
步骤1009：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModList信元且所述drb-ToAddModList信元中包含所述drb-Identity且所述drb-ToAddModList信元还包含与所述drb-Identity对应的drb-TypeChangeWLN信元且所述drb-TypeChangeWLN的值为toMCG？如果是，则执行步骤1010；否则，执行步骤1011；
步骤1010：重配置WLN不可分离DRB为MCG DRB；
步骤1011：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModListWLN信元且所述drb-ToAddModListWLN信元包含所述drb-Identity且所述drb-ToAddModListWLN信元还包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN的值为WLNsplit？如果是，则执行步骤1012；否则，执行步骤1013；
步骤1012：将WLN不可分离DRB重配置为WLN分离DRB；
步骤1013：重配置WLN不可分离DRB；
步骤1014：判断UE中已配置的所述标识为drb-Identity的DRB是否为MCG DRB？如果是，则执行步骤1015；
步骤1015：判断所述RRCConnectionReconfiguration消息是否包含drb-ToAddModListWLN信元且所述drb-ToAddModListWLN信元包含所述drb-Identity且所述drb-ToAddModListWLN信元还包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN的值为WLNnonsplit？如果是，则执行步骤1016；否则，执行步骤1017；
步骤1016：将MCG DRB重配置为WLN不可分离DRB；
步骤1017：判断所述RRCConnectionReconfiguration消息是否包含 drb-ToAddModListWLN信元且所述drb-ToAddModListWLN信元包含所述drb-Identity且所述drb-ToAddModListWLN信元还包含与所述drb-Identity对应的drb-TypeWLN信元且所述drb-TypeWLN的值为WLNsplit？如果是，则执行步骤9018；
步骤1018：将MCG DRB重配置WLN分离DRB。
需要说明的是，步骤9012和步骤1004中重配置WLN分离DRB为MCG DRB过程可以采用图5所示流程。步骤9022和步骤1006中重配置WLN分离DRB为WLN不可分离DRB过程可以采用图6所示流程。步骤9015和步骤1010中重配置WLN不可分离DRB为MCG DRB过程可以采用图7所示流程。步骤9009和步骤1012中重配置WLN不可分离DRB为WLN分离DRB过程可以采用图8所示流程。步骤9006和步骤1018中重配置MCG DRB为WLN分离DRB过程可以采用图3所示流程。步骤9019和步骤1016中重配置MCG DRB为WLN不可分离DRB过程可以采用图4所示流程。
根据本发明的实施例，用户设备建立WLN分离DRB包含如下过程：如果WLN DRB与适配实体间存在多对一的映射关系，根据drb-ToAddModListWLN中携带的Adaptation-Config信元重配置适配实体。可选的，如果所述WLN中没有适配实体，即需要建立的WLN分离DRB是适配实体的第一个WLN DRB，则建立适配实体。如果WLN DRB与适配实体间存在一对一的映射关系，根据drb-ToAddModListWLN中携带的Adaptation-Config信元建立适配实体。根据drb-ToAddModList中携带的pdcp-Config信元建立PDCP实体，并利用MCG安全配置信息配置PDCP实体。根据drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元建立MCG RLC实体和MCG DTCH逻辑信道。
根据本发明的实施例，用户设备建立WLN不可分离DRB包含如下过程：如果WLN DRB与适配实体间存在多对一的映射关系，根据drb-ToAddModListWLN中携带的Adaptation-Config信元重配置适配实体。可选的，如果所述WLN中没有适配实体，即的WLN分离DRB是适配实体的第一个WLN DRB，则建立适配实体。如果WLN DRB与适配实体间存在一对一的映射关系，根据drb-ToAddModListWLN中携带的 Adaptation-Config信元建立适配实体。根据drb-ToAddModList中携带的pdcp-Config信元建立PDCP实体，并利用MCG安全配置信息配置PDCP实体。可选的，根据drb-ToAddModListWLN中携带的pdcp-Config信元建立PDCP实体，并利用MCG安全配置信息配置PDCP实体。
根据本发明的实施例，用户设备重配置WLN分离DRB包含如下过程：如果drb-ToAddModListWLN中携带Adaptation-Config信元，则根据所述Adaptation-Config信元重配置适配实体。如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。可选的，如果drb-ToAddModListWLN中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。如果drb-ToAddModList中携带rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元，则根据所述rlc-Config信元、logicalChannelIdentity信元和logicalChannelConfig信元重配置MCG RLC实体和MCG DTCH逻辑信道。可选的，用户设备重配置WLN分离DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备重配置WLN分离DRB时是否重建PDCP实体并发送PDCP状态报告。
根据本发明的实施例，用户设备重配置WLN分离DRB包含如下过程：如果drb-ToAddModListWLN中携带Adaptation-Config信元，则根据所述Adaptation-Config信元重配置适配实体。如果drb-ToAddModList中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。可选的，如果drb-ToAddModListWLN中携带pdcp-Config信元，则根据所述pdcp-Config信元重配置PDCP实体。
可选的，用户设备重配置WLN不可分离DRB时，重建PDCP实体，并发送PDCP状态报告。可选的，可通过RRC信令配置用户设备重配置WLN不可分离DRB时是否重建PDCP实体并发送PDCP状态报告。
图11是示出了根据本发明实施例的用户设备的框图。如图11所示，用户设备1100包括接收单元1101、确定单元1102、重配置单元1103。备选地，用户设备1100还可以包括重建单元1104。
接收单元1101可以被配置为接收无线资源控制连接重配置消息。
确定单元1102可以被配置为确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载。
重配置单元1103可以被配置为：如果所接收的无线资源控制连接重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置。
重建单元1104可以被配置为重建PDCP实体。
根据本发明的实施例，第一类型的数据承载可以包括主小区群MCG数据承载、无线局域网WLN分离数据承载或无线局域网WLN不可分离数据承载。第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。
本领域技术人员可以理解，可以采用图11所示的用户设备1100来执行上文针对图3-图10所描述的各个方法。为了简明起见，这里不再重复描述。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代 码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (20)

  1. 一种由用户设备执行的方法，包括：
    接收无线资源控制连接重配置消息；
    确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载；以及
    如果所接收的无线资源控制连接重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置；
    其中，第一类型的数据承载包括主小区群MCG数据承载或无线局域网逻辑节点WLN分离数据承载，第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。
  2. 根据权利要求1所述的方法，其中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重配置包括：
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
  3. 根据权利要求1所述的方法，其中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重配置包括：
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，建立适配实体；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
  4. 根据权利要求1所述的方法，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置。
  5. 根据权利要求1所述的方法，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；
    释放适配实体。
  6. 根据权利要求1所述的方法，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是WLN不可分离数据承载，而且根据所述无线资源控制连接重配置消息对用户设备进行重新配置包括：
    释放MCG RLC实体和MCG DTCH逻辑信道；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与适配实体有关的配置信息，对适配实体进行重配置。
  7. 根据权利要求1-6中任意一项所述的方法，还包括：
    重建PDCP实体。
  8. 根据权利要求7所述的方法，其中，通过向用户设备发送RRC信令来确定是否重建PDCP实体。
  9. 根据权利要求1所述的方法，其中，所述指示信息包括drb-ToAddModList信元中携带的drb-TypeChangWLN信元以及drb-ToAddModListWLN信元中携带的drb-TypeWLN信元，所述drb-ToAddModList信元是一组需要增加或修改的数据承载，所述drb-TypeChangWLN信元用于指示是否将WLN分离数据承载或WLN不可分离数据承载重配置为MCG数据承载，所述drb-ToAddModListWLN信元是一组需要增加或修改的WLN数据承载，所述drb-TypeWLN信元表示对应的数据承载的类型。
  10. 根据权利要求9所述的方法，其中，
    根据drb-TypeWLN信元的取值以及drb-TypeWLN信元对应的数据承载是否包含在drb-ToAddModList信元和drb-ToAddModListWLN信元中，确定是否将MCG数据承载重配置为WLN分离数据承载或将WLN分离数据承载重配置为MCG数据承载或将WLN分离数据承载重配置为WLN不可分离数据承载。
  11. 一种用户设备，包括：
    接收单元，被配置为接收无线资源控制连接重配置消息；
    确定单元，被配置为确定所接收的无线资源控制连接重配置消息中是否包含指示信息，所述指示信息指示用户设备将第一类型的数据承载重配置为与第一类型不同的第二类型的数据承载；以及
    重配置单元，被配置为：如果所接收的无线资源控制连接重配置消息中包含指示信息，则根据所述无线资源控制连接重配置消息对用户设备进行重配置；
    其中，第一类型的数据承载包括主小区群MCG数据承载或无线局域网逻辑节点WLN分离数据承载，第二类型的数据承载包括MCG数据承载、WLN分离数据承载或WLN不可分离数据承载。
  12. 根据权利要求11所述的用户设备，其中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，所述重配置单元被配置为：
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
  13. 根据权利要求11所述的用户设备，其中，第一类型的数据承载是MCG数据承载，第二类型的数据承载是WLN分离数据承载，所述重配置单元被配置为：
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，建立适配实体；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置。
  14. 根据权利要求11所述的用户设备，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，所述重配置单元被配置为：
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；
    根据所述无线资源控制连接重配置消息中包含的与适配实体有关的配置信息，对适配实体进行重配置。
  15. 根据权利要求11所述的用户设备，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是MCG数据承载，所述重配置单元被配置为：
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与无线链路控制RLC实体和MCG专用业务信道DTCH逻辑信道有关的配置信息，对MCG RLC实体和MCG DTCH逻辑信道进行重配置；
    释放适配实体。
  16. 根据权利要求11所述的用户设备，其中，第一类型的数据承载是WLN分离数据承载，第二类型的数据承载是WLN不可分离数据承载，所述重配置单元被配置为：
    释放MCG RLC实体和MCG DTCH逻辑信道；
    如果所述无线资源控制连接重配置消息中包含与分组数据汇聚协议PDCP实体有关的配置信息，对PDCP实体进行重配置；
    如果所述无线资源控制连接重配置消息中包含与适配实体有关的配置信息，对适配实体进行重配置。
  17. 根据权利要求11-16中任意一项所述的用户设备，还包括：
    重建单元，被配置为重建PDCP实体。
  18. 根据权利要求17所述的用户设备，其中，通过向用户设备发送RRC信令来确定是否重建PDCP实体。
  19. 根据权利要求11所述的用户设备，其中，所述指示信息包括drb-ToAddModList信元中携带的drb-TypeChangWLN信元以及drb-ToAddModListWLN信元中携带的drb-TypeWLN信元，所述drb-ToAddModList信元是一组需要增加或修改的数据承载，所述drb-TypeChangWLN信元用于指示是否将WLN分离数据承载或WLN不可分离数据承载重配置为MCG数据承载，所述drb-ToAddModListWLN信元是一组需要增加或修改的WLN数据承载，所述drb-TypeWLN信元表示对应的数据承载的类型。
  20. 根据权利要求19所述的用户设备，其中，
    根据drb-TypeWLN信元的取值以及drb-TypeWLN信元对应的数据承载是否包含在drb-ToAddModList信元和drb-ToAddModListWLN信元中，确定是否将MCG数据承载重配置为WLN分离数据承载或将WLN分离数据承载重配置为MCG数据承载或将WLN分离数据承载重配置为WLN不可分离数据承载。
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US20200022191A1 (en) 2020-01-16
CA2985869A1 (en) 2016-11-24
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US10433348B2 (en) 2019-10-01
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