WO2014177083A1 - 一种连接管理方法及接入网网元 - Google Patents

一种连接管理方法及接入网网元 Download PDF

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Publication number
WO2014177083A1
WO2014177083A1 PCT/CN2014/077703 CN2014077703W WO2014177083A1 WO 2014177083 A1 WO2014177083 A1 WO 2014177083A1 CN 2014077703 W CN2014077703 W CN 2014077703W WO 2014177083 A1 WO2014177083 A1 WO 2014177083A1
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WO
WIPO (PCT)
Prior art keywords
connection
connection node
resource
node
delete
Prior art date
Application number
PCT/CN2014/077703
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English (en)
French (fr)
Inventor
施小娟
黄亚达
杜忠达
Original Assignee
中兴通讯股份有限公司
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.)
Filing date
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 JP2016533788A priority Critical patent/JP6290413B2/ja
Priority to EP14792248.8A priority patent/EP3032912A4/en
Priority to KR1020167006574A priority patent/KR20160043048A/ko
Priority to US14/910,676 priority patent/US20160198517A1/en
Publication of WO2014177083A1 publication Critical patent/WO2014177083A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/22Manipulation of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release
    • H04W76/34Selective release of ongoing connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a connection management method and an access network element.
  • the network further develops and upgrades, including: expanding network capabilities, enhancing network coverage, enhancing collaboration between different cells in different networks, improving network deployment flexibility, and reducing network deployment costs.
  • LPN Low-power node
  • BS Base Station
  • the LPN may be a micro base station (Pico).
  • LPN home base station
  • Femto/Home (e)NB home base station
  • any other cellular nodes that may have lower transmit power than traditional macro nodes or BSs.
  • the deployment of LPN can effectively expand network capabilities, enhance network coverage, and ultimately improve the throughput of end users and improve the communication experience of end users.
  • due to the low transmission power of the LPN it can be plug and play, so the network
  • the network operator can flexibly and conveniently deploy the LPN as needed, and the network operator can even deploy it.
  • LPN's authority is open to enterprises, schools and other users and even individual users, thereby improving the flexibility of network deployment and reducing network deployment and operation and maintenance costs.
  • LPN User Equipment
  • the throughput of the UE user equipment
  • 3gpp the 3rd Generation Partner Project, the third generation cooperation
  • R12 the partner program
  • Multi-connection means that the user equipment can simultaneously use resources of at least two different access network elements, and the at least two different access network elements and their functions in multiple connections can be independent of the access network.
  • the functional features of the network element for example, the at least two different access network elements may be both traditional macro nodes or low power nodes, or may be partially macro nodes and low power nodes.
  • low-power nodes may be deployed in hotspot areas and indoor coverage areas with macro-node coverage
  • multi-connection schemes in which user equipment simultaneously uses macro-node and low-power node resources will greatly improve the user communication experience and satisfy New mobile needs.
  • the LTE system includes: a Mobility Management Entity (hereinafter referred to as “ ⁇ ”) and a Serving Gateway (SGW) for accessing a core network (Core Network, referred to as “CN) network element, and accessing Base stations (eNB1 and eNB2) of the Radio Access Network (RAN) network element, and UE.
  • Mobility Management Entity
  • SGW Serving Gateway
  • CN Core Network
  • eNB1 and eNB2 Base stations
  • RAN Radio Access Network
  • the UE communicates with the serving base station eNB1 through the air interface (Uu interface), and the serving base station eNB1 implements signaling transmission through the control plane S1 interface protocol S1-MME/S1-C and the MME, and implements the user plane through the user plane S1 interface protocol S1-U. data transmission.
  • the serving base station eNB1 can implement control plane signaling and user plane data transmission with the neighboring base station eNB2 through the X2 interface protocol between the base stations.
  • a UE in a long term evolution system, a UE is only connected to one base station, and only uses resources of the one base station; the one UE also establishes a connection with only one MME/SGW.
  • FIG. 2 is a schematic diagram of a system architecture in which a multi-connection is introduced in a long-term evolution system. Taking a dual connection as an example, the UE can be connected to the base station eNB1 and the base station eNB2 through the air interfaces Uul and Uu2, respectively, in comparison with the single-connection system architecture of FIG.
  • the UE can simultaneously use the resources of the eNB1 and the eNB2 to implement dual connectivity of the air interface resources.
  • the UE is connected to the MME only through the base station eNB1, thereby avoiding modification and signaling impact on the core network caused by the introduction of the air interface dual connection.
  • one of the purposes of the dual connection is to improve the throughput of the UE.
  • the UE accesses the SGW through the S1-U interface of the eNB1, and the UE can be further The SGW is accessed through the S1-U interface of eNB2.
  • an Xn interface is established between the eNB1 and the eNB2 to implement interaction of control plane information or interaction between control plane information and user plane information.
  • the types of two base stations in which the UE implements dual connectivity are not limited.
  • eNB1 and eNB2 may both be macro nodes, or may be low power nodes, or one macro node may be a low power node, or may be Any other possible access network node; the eNB1 and eNB2 are also unrestricted, and may be Time Division Duplexing (TDD) or Frequency Division Duplexing (FDD). Or one for TDD and the other for FDD.
  • TDD Time Division Duplexing
  • FDD Frequency Division Duplexing
  • the dual connectivity of FIG. 2 is only an example, and the UE may also implement a multi-connection scheme with more than three eNBs.
  • the user equipment can only use resources that can only use one access network element to the resources that can use two or more access network elements, or the user equipment can only connect from the current To an access network element extended to connect to two or more access network elements, it is bound to pose new challenges to connection management, and a new connection management solution needs to be sought.
  • the embodiments of the present invention provide a connection management method and an access network element to overcome the defect that the connection cannot be managed.
  • the embodiment of the present invention provides a connection management method, which is applied to a scenario in which a user equipment (UE) establishes a connection with at least two access network NEs at the same time, including:
  • the primary connection node When determining that at least part of the connection between the UE and a resource connection node needs to be deleted or moved, the primary connection node instructs the resource connection node to delete or move the at least part of the connection, and the resource is connected to the node or the node. Said primary connection node indicating that said UE is deleted or The user moves the at least part of the connection.
  • the primary connection node instructs the resource connection node to delete or move at least part of a radio access bearer (RAB) carried by the resource connection node for user plane data transmission.
  • RAB radio access bearer
  • the primary connection node After learning that the resource connection node has deleted or moved the at least part of the connection, the primary connection node instructs the UE to delete or move the at least part of the connection accordingly.
  • the resource connection node After receiving the indication of the primary connection node, the resource connection node instructs the UE to delete or move the at least part of the connection accordingly.
  • Instructing the UE to delete or move the at least part of the connection includes:
  • DRB user plane data radio bearer
  • SRB control plane signaling radio bearer
  • the primary connection node determines that at least part of the connection between the UE and the one resource connection node needs to be deleted or moved, including: Determining, by the primary connection node, whether to delete or move the UE to connect to a resource according to at least one of a received measurement report, a radio resource management (RRM) algorithm, a received load information of a resource node, and a service transmission situation. At least partial connection between nodes.
  • RRM radio resource management
  • the information of the connection includes at least the identification information of the connection.
  • the connected information further includes uplink and downlink users for performing data forwarding on the Xn interfaces of the resource connection node and the primary connection node by the deleted/removed connections provided by the primary connection node.
  • GPRS tunneling protocol tunnel identification information is included in the resource connection node and the primary connection node by the deleted/removed connections provided by the primary connection node.
  • the information of the connection further includes indication information about whether each of the deleted/removed connections performs data forwarding
  • the resource connection node forwards the data to the primary connection node when determining whether the value of the indication information for performing data forwarding indicates that data forwarding is required.
  • the method further includes:
  • the resource connection node completes the deletion of the connection according to the instruction of the primary connection node
  • the information of all the deleted/removed connections is sent to the primary connection node; wherein, at least the identification information of all the deleted/removed connections is included.
  • the information of all the deleted/removed connections also includes an indication of whether each deleted/removed connection performs data forwarding.
  • the information of all connections also includes the transmission of data transmission on each deleted/removed connection.
  • the sequence status of the input sequence including: a reception status indication of an uplink packet data protocol layer service data packet (PDCP SDU), a count number of the first lost uplink PDCP SDU, and a count number of the first lost downlink PDCP SDU or random combination.
  • PDCP SDU uplink packet data protocol layer service data packet
  • the resource connection node completes the deletion of the connection according to the instruction of the primary connection node
  • the transmission sequence status of the data transmission on each deleted/removed connection is sent to the primary connection node, including: a reception status indication of the uplink PDCP SDU, a count number of the first lost uplink PDCP SDU, and a first Any one or any combination of the count numbers of the lost downlink PDCP SDUs.
  • the resource connection node After receiving the indication sent by the primary connection node, the resource connection node deletes all connections between the UE and the resource connection node.
  • the method further includes:
  • the UE After the UE deletes or moves the at least part of the connection accordingly, the UE sends a response to the primary connection node.
  • the method further includes:
  • the resource connection node After receiving the response replied by the UE, the resource connection node is notified to delete or move successfully.
  • an embodiment of the present invention further provides an access network element, including:
  • a determining module configured to determine, when the access network element is used as a primary connection node, whether to delete or move at least part of a connection between the UE and a resource connection node;
  • the indication module is configured to: when the determining network module determines that the at least part of the connection between the UE and a resource connection node needs to be deleted or moved, when the determining network element is used as the primary connection node, indicating the resource The connecting node deletes or moves the at least part of the connection accordingly.
  • the indication module is further configured to: when the access network element is used as the primary connection node, When the determining module determines that at least part of the connection between the UE and the one resource connection node needs to be deleted or moved, the UE is instructed to delete or move the at least part of the connection, or is further configured to be in the When the network element is connected to the network as the resource connection node, after receiving the indication of deleting or moving at least part of the connection sent by the primary connection node, the UE is instructed to delete or move the at least part of the connection accordingly.
  • the indication module is configured to instruct the resource connection node to delete or move the at least part of the connection, including:
  • the indication module is configured to instruct the resource connection node to delete or move at least part of a radio access bearer (RAB) carried by the resource connection node for user plane data transmission.
  • RAB radio access bearer
  • the indication module is configured to: when the access network element is used as the primary connection node, instructing the UE to delete or move the at least part of the connection, including:
  • the indication module is configured to: when the access network element is used as the primary connection node, instructing the resource connection node to delete or move the at least part of the connection, instructing the UE to delete or move the corresponding Said at least partially connected; or
  • the indication module is configured to: when the access network element is used as the primary connection node, after learning that the resource connection node has deleted or moved the at least part of the connection, instructing the UE to delete or move the corresponding Said at least partially connected.
  • the indication module is configured to instruct the UE to delete or move the at least part of the connection, including:
  • the indication module is configured to instruct the UE to delete or move at least one user plane data radio bearer (DRB) between the UE and the resource connection node, or the at least one user plane DRB and the UE and the UE At least one control plane signaling radio bearer (SRB) between the resource connection nodes.
  • DRB user plane data radio bearer
  • SRB control plane signaling radio bearer
  • the determining module is configured to determine whether it is necessary to delete or move the UE and the one resource At least part of the connection between the source connection nodes, including:
  • the determining module is configured to determine, according to at least one of a received measurement report, a radio resource management (RRM) algorithm, a received resource information of a resource node, and a service transmission condition, whether to delete or move the UE and the A resource connects at least a partial connection between nodes.
  • RRM radio resource management
  • the indication module is configured to instruct the resource connection node to delete or move the at least part of the connection, including:
  • the indication module is configured to initiate a connection reconfiguration request to the resource connection node, where the information that the primary connection node decides to delete or decides to remove the connection from the resource connection node is carried; wherein the information of the connection includes at least Identification information of the connection.
  • the information of the connection further includes uplink and downlink user plane GPRS tunnels for data forwarding on the Xn interface of the resource connection node and the primary connection node of each deleted/removed connection provided by the indication module. Protocol tunnel identification information.
  • the information of the connection further includes indication information about whether the deleted/removed connection performs data forwarding
  • the method further includes:
  • the sending module is configured to forward the data to the primary connection node when the value of the indication information indicating whether the data forwarding is performed indicates that data forwarding is required.
  • the access network element further includes:
  • a sending module configured to: when the access network element is used as a resource connection node, after the deletion/removal of the connection is completed according to the instruction of the primary connection node, sending, deleting, and deleting the connection to the primary connection node All connected information; wherein, at least the identification information of all the deleted/removed connections is included.
  • the information of all the deleted/removed connections sent by the sending module further includes each deletion. Whether the divided/removed connection is an indication of data forwarding.
  • the information about all the deleted/removed connections sent by the sending module further includes a transmission sequence status of the data transmission on each deleted/removed connection, including: an uplink packet data protocol layer service data packet (PDCP SDU) Any one or any combination of the reception status indication, the count number of the first lost uplink PDCP SDU, and the count number of the first lost downlink PDCP SDU.
  • PDCP SDU uplink packet data protocol layer service data packet
  • the sending module is further configured to: after the deletion/removal of the connection is completed according to the instruction of the primary connection node, send a transmission sequence status of the data transmission on each deleted/removed connection to the primary connection node, including : any one or any combination of the reception status indication of the uplink PDCP SDU, the count number of the first lost uplink PDCP SDU, and the count number of the first lost downlink PDCP SDU.
  • the embodiment of the present invention implements connection management between the UE and the resource connection node in the dual connectivity architecture, and in particular, when the resource connection node is no longer suitable for providing information transmission to the UE or is no longer suitable for providing the UE with all previously established connections. Connection management when information is transmitted.
  • FIG. 1 is a system architecture diagram of a long term evolution system in related art
  • FIG. 2 is a system architecture diagram of a dual connectivity after a long-term evolution system is introduced
  • FIG. 3 is a flowchart of a method for a connection management method according to an embodiment of the present invention.
  • FIG. 4 is a non-limiting schematic diagram of a scenario of a connection management method according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a dual-connection radio interface control plane architecture according to Embodiment 1 of the present invention
  • Connection management flow chart is a schematic diagram of a connection management flow chart according to Embodiment 1 of the present invention.
  • FIG. 7 is a flowchart of connection management according to Embodiment 2 of the present invention.
  • FIG. 8 is a flowchart of an optimized connection management according to Embodiment 1 of the present invention.
  • FIG. 9 is a flowchart of an optimized connection management according to Embodiment 2 of the present invention.
  • FIG. 10 is a flowchart of connection management according to Embodiment 3 of the present invention.
  • FIG. 11 is a flowchart of a method according to Embodiment 1 of the present invention.
  • FIG. 12 is a schematic diagram of a dual-connection wireless interface control plane architecture according to Embodiment 2 of the present invention
  • FIG. 13 is a flowchart of connection management according to Embodiment 1 of the second embodiment of the present invention.
  • FIG. 14 is a flowchart of connection management according to Embodiment 2 of Embodiment 2 of the present invention.
  • the UE on the air interface, the UE is connected to eNB1 and eNB2 through Uul and Uu2 at the same time.
  • the control plane UE is only connected to the MME through eNB1, that is, the eNB1 implements the UE and The control plane of the MME accesses the anchor point.
  • an access network element such as the base station eNB1 in FIG. 2 that implements an anchor function of the UE control plane to access the MME is referred to as a primary connection node, and other access network networks to which the UE is connected are connected.
  • a unit (such as base station eNB2 in FIG. 2) is referred to as a resource connection node.
  • the resource connection node may also provide information transmission for the UE, and information transmission between the UE and the primary connection node and the resource connection node may depend on the hardware capability of the UE and the configuration of the network. It is transmitted at the same time, or it can be coordinated in time division multiplexing.
  • the embodiment of the present invention provides a connection management method, in particular, a connection management method when a resource connection node is no longer suitable for providing information transmission for a UE, that is, a situation in which a connection between a UE and a resource connection node needs to be deleted, or The connection between the UE and the resource connection node needs to be moved to the primary connection node, after which the primary connection node can further move the connection to other resource connection nodes.
  • the connection between the UE and the resource connection node includes at least: a user plane data connection between the UE and the resource connection node, and may further include a control plane signaling connection between the UE and the resource connection node.
  • the UE originally establishes a connection with two or more access network elements, and a connection tube
  • the method is applied to the above multi-connection scenario, including:
  • the primary connection node determines that some or all of the connections between the UE and a resource connection node need to be deleted or moved.
  • the primary connection node may determine, according to the received measurement report, the RRM (Radio Resource Management) algorithm, the received load information of the resource connection node, and any one or any combination of the service transmission conditions. Delete or move some or all of the connections between the UE and a resource connection node.
  • RRM Radio Resource Management
  • the primary connection node initiates a delete or move operation, and the operations include:
  • the primary connection node instructs the resource connection node to delete or move the connection; wherein the connection that the primary connection node indicates that the resource connection node deletes or moves refers to that is carried by the resource connection node for the foregoing
  • RABs radio access bearers
  • the primary connection node instructs the UE to delete or move the connection; or, after receiving the indication sent by the primary connection node, the resource connection node instructs the UE to delete or move the connection.
  • the primary connection node or the resource connection node instructing the UE to delete or move the connection may be implemented by the primary connection node or the resource connection node reconfiguring the connection by using an air interface message, the air interface message
  • the operation of instructing the UE to reconfigure the connection is to delete the connection, or delete the connection and create the connection between the UE and the primary connection node, the latter is equivalent to moving the connection to the primary connection On the node.
  • connection in which the primary connection node or the resource connection node indicates that the UE deletes or moves refers to one or more user planes DRB between the UE and the resource connection node, or the one or more user planes DRB and UE and One or more control plane signaling radio bearers (referred to as SRBs) between the resource connection nodes.
  • SRBs control plane signaling radio bearers
  • the operation 302-1 and the operation 302-2 may be performed sequentially or concurrently; if the resource is connected to the node in 302-2 After receiving the indication of the primary connection node, instructing the UE to delete or move the connection Then, the operations 302-1 and 302-2 are sequentially performed in sequence.
  • the resource connection node and the UE stop receiving and transmitting information on the deleted part or all of the connections.
  • the primary connection node and the UE continue to receive and transmit information on the connection moved to the primary connection node, thereby It realizes the connection of data after the connection is deleted or moved.
  • the two or more access network elements that are connected to the UE may be, but are not limited to, a base station.
  • FIG. 4 is a non-limiting schematic diagram of the foregoing connection management method applied to a dual connectivity scenario.
  • the UE is in the common coverage area of the cell 1 deployed by the node 1 and the cell 2 deployed by the node 2 at the point A, so the UE is in the UE.
  • Point A establishes a connection with both node 1 and node 2, where node 1 is the primary connection node of the UE, and node 2 is the resource connection node of the UE.
  • the moving path of the UE is as shown by the solid line of the arrow in the figure.
  • the signal quality of the cell 2 deteriorates, which is no longer suitable for providing information transmission for the UE. Therefore, it is necessary to delete the relationship between the UE and the node 2. Connection, or need to move the connection between UE and node 2 to the primary connection node.
  • connection management scheme of the present invention will be described in detail below by way of non-limiting example and with the accompanying drawings.
  • the following non-limiting embodiments are exemplified by the dual connection between the UE and the two nodes in the LTE system, but the embodiment of the present invention is not limited to the example in which the UE is connected to three or more nodes, and the present invention is not limited. Embodiments can be applied to other wireless network systems.
  • FIG. 5 is a schematic diagram of a dual-connection wireless interface control plane architecture in the embodiment.
  • a radio resource control (RRC) entity is deployed on the primary connection node and the UE, and the RRC entity on the primary connection node and the UE implements all RRC functions in the related technology LTE system, including receiving and receiving system broadcast messages. All functions of RRC connection control.
  • the RRC entity can be deployed on the resource connection node (as shown by the gray dotted line in Figure 5), or the RRC entity may not be deployed. For the case where the RRC entity is not deployed on the resource connection node, the primary connection node is responsible for the UE.
  • the RRC message transmission between;
  • the RRC message may also be transmitted between the resource connection node and the UE.
  • all RRC messages are transmitted between the primary connection node and the UE regardless of whether the RRC entity is deployed on the resource connection node.
  • the embodiment is applicable to the scenario shown in FIG. 3.
  • the UE originally establishes a dual connection between the primary connection node and the resource connection node, and thereafter the UE detects that the signal quality of the cell (cell 2) covered by the resource connection node where the UE is located is deteriorated. It is no longer suitable for the UE to continue to maintain the connection on the resource connection node.
  • the primary connection node determines to move the connection between the UE and the resource connection node to the primary connection node.
  • the connection management method includes:
  • the UE reports a measurement report to the primary connection node.
  • the measurement report includes the measurement result of the cell 2;
  • the primary connection node After receiving the measurement report, the primary connection node decides to move the connection of the UE on the resource connection node to the primary connection node according to the measurement report and the RRM of the primary connection node;
  • the signal quality of the cell covered by the resource connection node where the UE is located is deteriorated, and the primary connection node determines to move the connection of the UE on the resource connection node to the primary connection node according to the measurement report and the RRM judgment, which is not limited to The signal quality of the cell covered by the resource connection node where the UE is located does not deteriorate. It is also suitable for the UE to continue providing the connection.
  • the primary connection node determines that the primary connection node resource is sufficient to provide services for all the UE connections
  • the primary connection node determines that the primary connection node resource is sufficient. , decide to move the UE's connection on the resource connection node to the primary connection node.
  • the primary connection node sends a connection reconfiguration request to the resource connection node
  • the connection reconfiguration request includes information that the primary connection node determines the connection that is removed from the resource connection node.
  • the information about the removed connection may include the identification information of the connection; and may further include uplink and downlink of data forwarding on the Xn interface of the resource connection node and the primary connection node by each of the removed connections provided by the primary connection node.
  • GTP-U GPRS Tunneling Protocol for the user plane
  • tunnel identification information may also include an indication of whether each of the removed connections performs data forwarding.
  • the signal quality of the cell 2 is deteriorated, and the primary connection node decides to move all the connections of the UE on the resource connection node to the primary connection node, and the connection reconfiguration request message may not include any
  • the definition of the connection reconfiguration message itself means that all connections between the UE and the resource connection node are removed.
  • connection reconfiguration request is just an exemplary message name of the present embodiment, and the message name is not limited to this example, and the present description is applicable to all message names in all the facts of the embodiment of the present invention.
  • the resource connection node returns a connection reconfiguration response to the primary connection node.
  • connection reconfiguration response includes information about all connections removed by the resource connection node, and the connection information may include identification information of the connection, and may also include an indication of whether each of the removed connections performs data forwarding.
  • connection reconfiguration response message may further include a transmission sequence status of the data transmission on each of the removed connections, for example, including: a reception status indication of an uplink PDCP SDU (Packet Data Protocol Protocol Service Data Unit) Any one or any combination of the count number of the first lost uplink PDCP SDU and the count number of the first lost downlink PDCP SDU.
  • the message of the reconfiguration response (604' in Figure 6) is sent to the primary connection node.
  • step 603 indicates that data forwarding is required, in synchronization with step 604, the resource connection node forwards the data to the primary connection node via 604-1.
  • the primary connection node sends an RRC connection reconfiguration message to the UE, instructing the UE to reconfigure the connection between the UE and the resource connection node to the primary connection node;
  • the primary connection node notifies the resource connection node that the connection reconfiguration succeeds, that is, the connection is successfully moved.
  • the primary connection node and the UE may continue to connect on the connection to the primary connection node. Receive and send information, enabling connection movement and data connection.
  • steps 801, 802, 807 is the same as steps 601, 602, and 607; step 803, step 804, 804', and 804-1 are respectively described as steps 603, 604, and 604'; and steps 803-x and 804-x are respectively the same as steps 605 and 606. That is, it is equivalent to the above procedure: the primary connection node instructs the resource connection node to move the connection between the UE and the resource connection node (step 803, steps 804, 804, 804-1) and the primary connection node instructs the UE to move the present The operation of the connection between the UE and the resource connection node (step 803-x, step 804-x) can be performed in parallel.
  • connection management method includes:
  • the primary connection node determines that the traffic is degraded. When the data transmission between the UE and the resource connection node ends, the primary connection node decides to delete the connection of the UE on the resource connection node.
  • the primary connection node sends a connection reconfiguration request to the resource connection node, where the connection reconfiguration request includes information of the connection that the primary connection node decides to delete. Or in this embodiment, the data transmission between the UE and the resource connection node is ended, and the connection reconfiguration request message may not include any connection information, and the connection reconfiguration message itself is defined to delete the UE and the resource connection. All connections between nodes;
  • the resource connection node returns a connection reconfiguration response to the primary connection node, where the connection reconfiguration response includes information about all connections deleted by the resource connection node, or the data transmission between the UE and the resource connection node has ended in this embodiment.
  • the connection reconfiguration response message may not include any connection information, that is, the resource connection node may delete all connections between the resource connection node and the UE;
  • the primary connection node sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message instructs the UE to delete all connections with the resource connection node.
  • This step is optional, and the primary connection node notifies the resource connection node that the connection reconfiguration succeeds, that is, The deletion was successful.
  • connection management process in this embodiment may be optimized as shown in FIG. 9.
  • Steps 901 and 906 are respectively the same as steps 701 and 706; steps 902 and 903 are respectively the same as steps 702 and 703; and steps 902-x and 903-x are explained.
  • the same steps 704, 705 are respectively performed. That is, it is equivalent to the above procedure: the primary connection node instructs the resource connection node to delete the connection between the UE and the resource connection node (steps 902, 903) and the primary connection node instructs the UE to delete the UE and the resource connection node
  • the operation of the connection (step 902-x, step 903-x) can be performed in parallel.
  • the resource connection node and the UE stop receiving and transmitting information on the deleted part or all of the connection.
  • This embodiment is applicable to the fact that the UE originally establishes a dual connection between the primary connection node and the resource connection node. Thereafter, because the resource connection node is too loaded, some or all connections between the UE and the resource connection node need to be moved to the primary connection node. Scene.
  • the primary connection node decides and initiates moving some or all of the connections between the UE and the resource connection node to the primary connection node.
  • the connection management method in this embodiment includes:
  • the resource connection node notifies the primary connection node of its own load information.
  • the load information may include: any one or any combination of hardware load, transport layer load, radio resource load, and interference load;
  • the primary connection node decides to move some or all of the connections on the resource connection node to the primary connection node according to the received load information and the RRM algorithm.
  • the primary connection node may also choose to delete some or all of the connections on the resource connection node.
  • connection management process shown in FIG. 10 may be optimized, that is, the operation in which the primary connection node instructs the resource connection node to move the connection between the UE and the resource connection node (steps 1003, 1003', 1003-1, 1004) may And the primary connection node indicates the connection between the UE mobile UE and the resource connection node
  • the operations are performed concurrently.
  • the primary connection node and the UE may continue to receive and transmit on the connection to the primary connection node.
  • Send information which enables connection movement and data connection.
  • FIG. 11 is a flowchart of a method according to Embodiment 1. 4
  • a connection management method includes:
  • the primary connection node determines that some or all of the connections between the UE and a resource connection node need to be deleted or moved.
  • the primary connection node determines, according to the received measurement report, the RRM algorithm, the received load information of the resource node, or one of the service transmission conditions, whether to delete or move the part between the UE and a resource connection node. Or all connected;
  • the primary connection node initiates the deleting or moving operation, where the operations include:
  • the primary connection node instructs the resource connection node to delete or move the connection; 1102-2.
  • the primary connection node instructs the UE to delete or move the connection.
  • the above operations 1102-1 and 1102-2 may be performed sequentially or concurrently.
  • the method of the first embodiment for deleting a part or all of the connection between the UE and the resource connection node, the resource connection node and the UE stop receiving and transmitting information on the deleted part or all of the connection;
  • the primary connection node and the UE can continue to receive and transmit information on the connection to the primary connection node, thereby realizing
  • the deletion of the connection or the connection of the connection and the connection of the data realizes the connection management between the UE and the resource connection node under the multi-connection architecture.
  • FIG. 12 is a schematic diagram of a dual-connection wireless interface control plane architecture in the embodiment.
  • the RRC entity is deployed on the primary connection node and the UE, and the RRC entity on the primary connection node and the UE implements all RRC functions in the LTE system, including system broadcast message transmission and reception and RRC connection control.
  • An RRC entity is also deployed on the resource connection node, except at the primary connection node.
  • the RRC message may also be transmitted between the resource connection node and the UE.
  • FIG. 13 is a flowchart of connection management according to Embodiment 1 of Embodiment 2, including:
  • the resource connection node returns a connection reconfiguration response to the primary connection node, which is the same as Embodiment 1 of the first embodiment.
  • steps 1034', 1034-1 are also the same as those of the first embodiment of the first embodiment 604', 604-1;
  • the resource connection node sends an RRC connection reconfiguration message to the UE, that is, the resource connection node instructs the UE to reconfigure the connection between the UE and the resource connection node to the primary connection node;
  • Embodiment 2 of Embodiment 2 is a connection management flow diagram of Embodiment 2 of Embodiment 2, including:
  • the resource connection node returns a connection reconfiguration response to the primary connection node, where the connection reconfiguration response includes information about all connections deleted by the resource connection node, or the UE in this embodiment
  • the data transmission between the resource connection nodes has ended, and the connection reconfiguration response message may not include any connection information
  • the resource connection node sends an RRC connection reconfiguration message to the UE, instructing the UE to delete all user plane data connections with the resource connection node; this step and step 1403 may be performed concurrently;
  • step 1403-x all user plane data connections between the UE and the resource connection node are deleted, but the control plane signaling connection between the UE and the resource connection node is reserved. Therefore, in this embodiment, the UE feeds back RRC. The connection reconfiguration response message is sent to the resource connection node.
  • FIG. 15 is a flowchart of connection management in Embodiment 3 of Embodiment 2, including:
  • steps 604, 604, and 604-1 are the same as the first embodiment.
  • 1504-x This step is performed synchronously with 1504, and the resource connection node sends an RRC connection reconfiguration message to the UE, instructing the UE to delete all user plane data connections with the resource connection node;
  • step 1403-x all user plane data connections between the UE and the resource connection node are deleted, but the control plane signaling connection between the UE and the resource connection node is reserved. Therefore, in this embodiment, the UE feeds back the RRC connection. Reconfigure the response message to the resource connection node.
  • the step 1504-x may also delete all the user plane data connection and the control plane signaling connection between the UE and the resource connection node, so in this step, the UE feeds back the RRC connection reconfiguration response message to the primary connection node. .
  • connection management method of the second embodiment the application
  • the UE originally established a connection with more than two connected nodes including:
  • the primary connection node determines that some or all connections between the UE and a resource connection node need to be deleted or moved;
  • the primary connection node determines, according to the received measurement report, the RRM algorithm, the received load information of the resource node, or one of the service transmission conditions, whether to delete or move the part between the UE and a resource connection node. Or all connected;
  • the primary connection node initiates the deleting or moving operation, where the operations include:
  • the primary connection node instructs the resource connection node to delete or move the connection
  • the resource connection node After receiving the indication of the primary connection node, the resource connection node instructs the UE to delete or move the connection.
  • the resource connection node and the UE stop receiving and transmitting information on the deleted part or all of the connection.
  • the primary connection node and the UE may continue to receive and transmit on the connection to the primary connection node.
  • the information thereby realizing the deletion of the connection or the connection of the connection and the connection of the data, realizes the connection management of the UE between the resource connection nodes under the multi-connection architecture.
  • an access network element including:
  • a determining module configured to determine, when the access network element is used as a primary connection node, whether to delete or move at least part of a connection between the UE and a resource connection node;
  • the indication module is configured to: when the determining network module determines that the at least part of the connection between the UE and a resource connection node needs to be deleted or moved, when the determining network element is used as the primary connection node, indicating the resource The connecting node deletes or moves the at least part of the connection accordingly.
  • the indication module is further configured to: when the access network element is used as the primary connection node, When the determining module determines that at least part of the connection between the UE and a resource connection node needs to be deleted or moved, the UE is instructed to delete or move the at least part of the connection, or is further configured to be in the access network.
  • the network element is a resource connection node, after receiving the indication sent by the primary connection node to delete or move at least part of the connection, the UE is instructed to delete or move the at least part of the connection accordingly.
  • the indication module is configured to instruct the resource connection node to delete or move the at least part of the connection, including:
  • the indication module is configured to instruct the resource connection node to delete or move at least part of a radio access bearer (RAB) carried by the resource connection node for user plane data transmission.
  • RAB radio access bearer
  • the indication module is configured to: when the access network element is used as the primary connection node, instructing the UE to delete or move the at least part of the connection, including:
  • the indication module is configured to: when the access network element is used as the primary connection node, instructing the resource connection node to delete or move the at least part of the connection, instructing the UE to delete or move the corresponding Said at least partially connected; or
  • the indication module is configured to: when the access network element is used as the primary connection node, after learning that the resource connection node has deleted or moved the at least part of the connection, instructing the UE to delete or move the corresponding Said at least partially connected.
  • the indication module is configured to instruct the UE to delete or move the at least part of the connection, including:
  • the indication module is configured to instruct the UE to delete or move at least one user plane data radio bearer (DRB) between the UE and the resource connection node, or the at least one user plane DRB and the UE and the UE At least one control plane signaling radio bearer (SRB) between the resource connection nodes.
  • DRB user plane data radio bearer
  • SRB control plane signaling radio bearer
  • the determining module is configured to determine whether it is necessary to delete or move the UE to connect to a resource At least part of the connection between the nodes, including:
  • the determining module is configured to determine, according to at least one of a received measurement report, a radio resource management (RRM) algorithm, a received resource information of a resource node, and a service transmission condition, whether to delete or move the UE and a resource. Connect at least part of the connection between the nodes.
  • RRM radio resource management
  • the indication module is configured to instruct the resource connection node to delete or move the at least part of the connection, including:
  • the indication module is configured to initiate a connection reconfiguration request to the resource connection node, where the information that the primary connection node decides to delete or decides to remove the connection from the resource connection node is carried; wherein the information of the connection includes at least Identification information of the connection.
  • the information of the connection further includes an uplink and downlink user plane GPRS tunneling protocol tunnel for data forwarding on the Xn interface of the resource connection node and the primary connection node of each deleted/removed connection provided by the indication module. Identification information.
  • the information of the connection further includes indication information about whether the deleted/removed connection performs data forwarding
  • the method further includes:
  • the sending module is configured to forward the data to the primary connection node when the value of the indication information indicating whether the data forwarding is performed indicates that data forwarding is required.
  • the access network element further includes:
  • a sending module configured to: when the access network element is used as a resource connection node, after the deletion/removal of the connection is completed according to the instruction of the primary connection node, sending, deleting, and deleting the connection to the primary connection node All connected information; wherein, at least the identification information of all the deleted/removed connections is included.
  • the information of all the deleted/removed connections sent by the sending module further includes an indication of whether each deleted/removed connection performs data forwarding.
  • an indication of whether each deleted/removed connection performs data forwarding Preferably,
  • the information about all the deleted/removed connections sent by the sending module further includes a transmission sequence status of the data transmission on each deleted/removed connection, including: an uplink packet data protocol layer service data packet (PDCP SDU) Any one or any combination of the reception status indication, the count number of the first lost uplink PDCP SDU, and the count number of the first lost downlink PDCP SDU.
  • PDCP SDU uplink packet data protocol layer service data packet
  • the sending module is further configured to: after the deletion/removal of the connection is completed according to the instruction of the primary connection node, send a transmission sequence status of the data transmission on each deleted/removed connection to the primary connection node, including The combination of the reception status indication of the uplink PDCP SDU, the count number of the first lost uplink PDCP SDU, and the count number of the first lost downlink PDCP SDU.
  • a program instructing the associated hardware such as a read-only memory, a magnetic disk, or an optical disk.
  • all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits.
  • each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. Embodiments of the invention are not limited to any particular form of combination of hardware and software.
  • the embodiment of the present invention implements connection management between the UE and the resource connection node in the dual connectivity architecture, and in particular, when the resource connection node is no longer suitable for providing information transmission to the UE or is no longer suitable for providing the UE with all previously established connections. Connection management when information is transmitted.

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Abstract

本发明实施例公开了一种连接管理方法及接入网网元,所述方法应用于用户设备(UE)同时与至少两个接入网网元建立连接的场景,包括:主连接节点在确定需要删除或者移动所述UE与一个资源连接节点之间的至少部分连接时,指示所述资源连接节点相应地删除或者移动所述至少部分连接,由所述资源连接节点或所述主连接节点指示所述UE相应地删除或者移动所述至少部分连接。本发明实施例实现了在双连接架构下对UE与资源连接节点之间的连接管理,尤其实现了当资源连接节点不再适合为UE提供信息传输或者不再适合为UE提供此前建立的全部连接的信息传输时的连接管理。

Description

一种连接管理方法及接入网网元
技术领域
本发明涉及移动通信领域, 尤其涉及一种连接管理方法及接入网网元。
背景技术
从 20世纪 80年代第一代移动通信系统发展至今, 移动通信技术已经步 入 4G (第 4代移动通信技术)时代, 用户的移动通信需求也经历了从单一的 语音业务、 到语音和基础数据业务、 再到数据业务爆发增长的过程, 移动通 信已经逐渐上升到目前的移动互联网时代。 在移动互联网时代, 新的移动应 用需求, 尤其是那些高质量、 高速率、 低延时的移动应用需求出现了爆发式 的增长, 才艮据国际电信同盟 ( International Telecommunications Union, 简称为 ITU ) 的预测, 2010年到 2015年间, 移动通信业务相对于此前将出现 15~30 倍的增长, 到 2020年, 移动通信业务更是有可能出现超过 500倍的增长。
移动通信业务的爆发式增长和用户对移动通信体验的更高期望, 比如更 高的吞吐量、 更低的延迟、 更快的速率、 更廉价的费用, 都驱使现有移动通 信技术和移动通信网络进一步向前发展升级, 包括: 扩容网络能力、 增强网 络覆盖、 增强不同网络不同小区之间的协作、 提高网络部署的灵活性、 降低 网络部署的费用等。
通过对用户通信行为和习惯的统计可以发现, 大部分高数据流量的通信 集中出现在室内环境和热点地区, 比如: 商场、 学校、 用户家里、 大型演出、 集会场所等, 考虑室内环境和热点地区区域分布广而散、 单区域范围小、 用 户集中等特点, 一种低功率节点 ( Lower Power Node, 简称为 LPN )应运而 生。从概念上讲, LPN是指发射功率比传统宏网络中的宏节点( Macro Node ) 或基站(Base Station, 简称为 BS )的发射功率低的无线接入网节点, LPN可 以是微基站 ( Pico Node ) 、 家庭基站( Femto/Home (e)NB ) 以及其他可能出 现的任何发射功率低于传统 macro node或 BS的蜂窝节点。 LPN的部署可以 有效扩容网络能力、 增强网络覆盖, 最终提高终端用户的吞吐量, 提高终端 用户的通信体验。 此外由于 LPN的发射功率低, 可以做到即插即用, 因此网 络运营商可以灵活方便的根据需要部署 LPN, 网络运营商甚至可以把部署
LPN的权限开放给企业、 学校等用户甚至个人用户, 从而提高网络部署的灵 活性, 同时降低网络部署和运维费用。
为实现对网络而言扩容网络能力、 增强网络覆盖、 提高网络部署的灵活 性, 降低网络部署的费用, 对用户而言提高用户的通信体验的目标, 包括提 高用户终端设备(User Equipment, 简称为 UE ) 的吞吐量, 提高用户终端设 备的移动性能等, LPN有望被大量部署, 比如对于 4G LTE ( Long Term Evolution, 长期演进 ) 系统而言, 在 3gpp ( the 3rd Generation Partner Project, 第三代合作伙伴计划 )版本 12 ( Released, 简称为 R12 )及 R12+之后, 在 传统宏网络基础上有望部署大量 LPN, 既包括室内环境也包括室外环境。
提高用户的通信体验, 尤其对于提高用户设备的吞吐量和移动性能, 目 前很多运营商和设备商都倾向于寻求一种新的技术方案, 多连接就是其中之 一。 多连接是指用户设备可以同时使用至少两个不同的接入网网元的资源, 这至少两个不同的接入网网元及其在多连接中所发挥的功能可以不依赖于接 入网网元的功能特征, 比如这至少两个不同的接入网网元可以均为传统宏节 点或者均为低功率节点, 也可以是部分为宏节点另一部分为低功率节点。 考 虑低功率节点可能会较多部署在有宏节点覆盖的热点地区和室内覆盖区域的 特征, 可以预见用户设备同时使用宏节点和低功率节点的资源的多连接方案 会大力提高用户通信体验, 满足新的移动需求。
如图 1所示, LTE系统中包括: 核心网 (Core Network, 简称为 CN ) 网 元的移动管理实体 ( Mobility Management Entity , 简称为 ΜΜΕ )和服务网关 ( Serving Gateway, 简称为 SGW ) 、 接入网 ( Radio Access Network, RAN ) 网元的基站(eNBl和 eNB2 ) 、 以及 UE。 UE通过空中接口 (Uu接口)与 服务基站 eNBl通信,服务基站 eNBl通过控制面 S1接口协议 S1-MME/S1-C 与 MME实现信令传输, 而通过用户面 S1接口协议 S1-U实现用户面数据传 输。而服务基站 eNBl可以通过基站之间的 X2接口协议实现与相邻基站 eNB2 之间的控制面信令和用户面数据的传输。 从图 1可见, 长期演进系统中, 一 个 UE只与一个基站实现连接,只使用该一个基站的资源; 该一个 UE也只与 一个 MME/SGW建立连接。 图 2示出了长期演进系统中引入多连接后的系统架构图,以双连接为例, 对比图 1的单连接系统架构, UE可以通过空中接口 Uul和 Uu2分别与基站 eNBl和基站 eNB2连接, 即 UE可以同时使用 eNBl和 eNB2的资源 , 实现 空口资源的双连接。 而对核心网控制面的 MME而言, UE只通过基站 eNBl 连接到 MME,从而避免了因引入空口双连接后导致对核心网的修改和信令冲 击。 在核心网用户面, 因双连接的目的之一在于提高 UE的吞吐量, 根据不 同的网络架构设计需要, UE在通过 eNBl的 S1-U接口接入 SGW之外, 额 外的, UE也可以再通过 eNB2的 S1-U接口接入 SGW。 此外, eNBl与 eNB2 之间建立有 Xn接口,实现控制面信息的交互或者同时实现控制面信息和用户 面信息的交互。 图 2中 UE实现双连接的两个基站的类别不受限制, eNBl和 eNB2可以都是宏节点,也可以都是低功率节点,也可以是一个为宏节点一个 为低功率节点, 或者可以是其他任意可能的接入网节点; eNBl及 eNB2的制 式也不受限制, 可以均为时分双工 ( Time Division Duplexing, 简称为 TDD ) 或者频分双工(Frequency Division Duplexing, 简称为 FDD )制式, 或者一个 为 TDD另一个为 FDD制式。 此外, 图 2的双连接只是一个示例, UE还可以 实现与 3个以上 eNB的多连接方案。
然而随着多连接方案的出现, 用户设备从目前只能使用一个接入网网元 的资源扩展到可以使用两个甚至更多接入网网元的资源, 或者说用户设备从 目前只能连接至一个接入网网元扩展到可以连接两个甚至 3个以上的接入网 网元, 势必会对连接管理提出新的挑战, 需要寻求新的连接管理方案。
发明内容
本发明实施例提供了一种连接管理方法及接入网网元, 以克服相关无法 对多连接进行管理的缺陷。
为解决上述问题, 本发明实施例提供了一种连接管理方法, 应用于用户 设备(UE ) 同时与至少两个接入网网元建立连接的场景, 包括:
主连接节点在确定需要删除或者移动所述 UE与一个资源连接节点之间 的至少部分连接时, 指示所述资源连接节点相应地删除或者移动所述至少部 分连接, 由所述资源连接节点或所述主连接节点指示所述 UE相应地删除或 者移动所述至少部分连接。
优选地 ,
所述指示所述资源连接节点相应地删除或者移动所述至少部分连接, 包 括:
所述主连接节点指示所述资源连接节点相应地删除或者移动所述资源连 接节点所承载的用于用户面数据传输的至少部分无线接入承载(RAB ) 。
优选地 ,
所述由所述主连接节点指示所述 UE相应地删除或者移动所述至少部分 连接, 包括:
所述主连接节点在指示所述资源连接节点相应地删除或者移动所述至少 部分连接的同时, 指示所述 UE相应地删除或者移动所述至少部分连接; 或 者,
所述主连接节点在获知所述资源连接节点已相应地删除或者移动所述至 少部分连接后, 指示所述 UE相应地删除或者移动所述至少部分连接。
优选地,
所述由所述资源连接节点指示所述 UE相应地删除或者移动所述至少部 分连接, 包括:
所述资源连接节点在收到所述主连接节点的指示后, 指示所述 UE相应 地删除或者移动所述至少部分连接。
优选地,
所述指示所述 UE删除或者移动所述至少部分连接, 包括:
指示所述 UE删除或者移动所述 UE与所述资源连接节点之间的至少一个 用户面数据无线承载( DRB )、 或者所述至少一个用户面 DRB和所述 UE与 所述资源连接节点之间的至少一个控制面信令无线承载(SRB ) 。
优选地,
所述主连接节点确定需要删除或者移动所述 UE与所述一个资源连接节 点之间的至少部分连接, 包括: 所述主连接节点根据接收到的测量报告、 无线资源管理(RRM )算法、 接收到的资源节点的负荷信息及业务传输情况中的至少一个因素判断是否需 要删除或者移动所述 UE与一个资源连接节点之间的至少部分连接。
优选地 ,
所述指示所述资源连接节点相应地删除或者移动所述至少部分连接, 包 括:
向所述资源连接节点发起连接重配置请求, 其中携带所述主连接节点决 定删除的、 或者决定从资源连接节点移出的连接的信息;
其中, 所述连接的信息至少包括所述连接的标识信息。
优选地,
所述连接的信息中还包括所述主连接节点所提供的各删除的 /移出的连 接在所述资源连接节点与主连接节点的 Xn接口上进行数据前转 ( data forwarding ) 的上行和下行用户面 GPRS隧道协议隧道标识信息。
优选地 ,
所述连接的信息中还包括所述每个删除的 /移出的连接是否进行数据前 转的指示信息;
所述资源连接节点在判断出所述是否进行数据前转的指示信息的值表示 需要进行数据前转时, 将数据前转给所述主连接节点。
优选地, 所述方法还包括:
所述资源连接节点在根据所述主连接节点的指示相应地完成连接的删除
/移出后, 向所述主连接节点发送删除的 /移出的所有连接的信息; 其中, 至少 包括所述删除的 /移出的所有连接的标识信息。
优选地 ,
所述删除的 /移出的所有连接的信息中还包括每个删除的 /移出的连接是 否进行数据前转的指示。
优选地 ,
所述所有连接的信息中还包含每个删除的 /移出的连接上数据传输的传 输序列状态, 其中包括: 上行分组数据协议层服务数据包(PDCP SDU ) 的 接收状态指示、首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意组合。
优选地 ,
所述资源连接节点在根据所述主连接节点的指示相应地完成连接的删除
/移出后,向所述主连接节点发送每个删除的 /移出的连接上数据传输的传输序 列状态,其中包括:上行 PDCP SDU的接收状态指示、首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意组 合。
优选地,
在接收到所述主连接节点发来的指示后,所述资源连接节点删除所述 UE 与所述资源连接节点之间的所有连接。
优选地, 所述方法还包括:
所述 UE在相应地删除或者移动所述至少部分连接后, 向所述主连接节 点发送响应。
优选地, 所述方法还包括:
在收到所述 UE回复的所述响应后, 通知所述资源连接节点删除或者移 动成功。
相应地, 本发明实施例还提供了一种接入网网元, 包括:
确定模块, 设置为在所述接入网网元作为主连接节点时, 确定是否需要 删除或者移动所述 UE与一个资源连接节点之间的至少部分连接;
指示模块, 设置为在所述接入网网元作为主连接节点时, 在所述确定模 块确定出需要删除或者移动所述 UE与一个资源连接节点之间的至少部分连 接时, 指示所述资源连接节点相应地删除或者移动所述至少部分连接。
优选地 ,
所述指示模块还设置为在所述接入网网元作为主连接节点时, 在所述确 定模块确定出需要删除或者移动所述 UE与所述一个资源连接节点之间的至 少部分连接时, 指示所述 UE相应地删除或者移动所述至少部分连接, 或者, 还设置为在所述接入网网元作为资源连接节点时, 在接收到主连接节点发来 的删除或者移动至少部分连接的指示后, 指示所述 UE相应地删除或者移动 所述至少部分连接。
优选地 ,
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述资 源连接节点所承载的用于用户面数据传输的至少部分无线接入承载( RAB ) 。
优选地 ,
所述指示模块, 设置为在所述接入网网元作为主连接节点时, 指示所述 UE相应地删除或者移动所述至少部分连接, 包括:
所述指示模块设置为在所述接入网网元作为主连接节点时, 在指示所述 资源连接节点相应地删除或者移动所述至少部分连接的同时, 指示所述 UE 相应地删除或者移动所述至少部分连接; 或者,
所述指示模块设置为在所述接入网网元作为主连接节点时, 在获知所述 资源连接节点已相应地删除或者移动所述至少部分连接后, 指示所述 UE相 应地删除或者移动所述至少部分连接。
优选地,
所述指示模块设置为指示所述 UE删除或者移动所述至少部分连接, 包 括:
所述指示模块设置为指示所述 UE删除或者移动所述 UE与所述资源连接 节点之间的至少一个用户面数据无线承载(DRB ) 、 或者所述至少一个用户 面 DRB和所述 UE与所述资源连接节点之间的至少一个控制面信令无线承载 ( SRB ) 。
优选地 ,
所述确定模块设置为确定是否需要删除或者移动所述 UE与所述一个资 源连接节点之间的至少部分连接, 包括:
所述确定模块设置为根据接收到的测量报告、 无线资源管理(RRM )算 法、 接收到的资源节点的负荷信息及业务传输情况中的至少一个因素判断是 否需要删除或者移动所述 UE与所述一个资源连接节点之间的至少部分连接。
优选地 ,
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为向所述资源连接节点发起连接重配置请求, 其中携 带所述主连接节点决定删除的、或者决定从资源连接节点移出的连接的信息; 其中, 所述连接的信息至少包括所述连接的标识信息。
优选地 ,
所述连接的信息中还包括所述指示模块所提供的各删除的 /移出的连接 在所述资源连接节点与所述主连接节点的 Xn接口上进行数据前转的上行和 下行用户面 GPRS隧道协议隧道标识信息。
优选地,
所述连接的信息中还包括所述各删除的 /移出的连接是否进行数据前转 的指示信息;
所述接入网网元在作为资源连接节点时, 还包括:
发送模块, 设置为在判断出所述是否进行数据前转的指示信息的值表示 需要进行数据前转时, 将数据前转给所述主连接节点。
优选地, 所述接入网网元中还包括:
发送模块, 设置为在所述接入网网元作为资源连接节点时, 在根据所述 主连接节点的指示相应地完成连接的删除 /移出后, 向所述主连接节点发送删 除的 /移出的所有连接的信息; 其中, 至少包括所述删除的 /移出的所有连接的 标识信息。
优选地 ,
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包括各删 除的 /移出的连接是否进行数据前转的指示。
优选地 ,
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包含各删 除的 /移出的连接上数据传输的传输序列状态, 其中包括: 上行分组数据协议 层服务数据包(PDCP SDU ) 的接收状态指示、 首个丟失的上行 PDCP SDU 的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意组合。
优选地 ,
所述发送模块还设置为在根据所述主连接节点的指示相应地完成连接的 删除 /移出后,向所述主连接节点发送各删除的 /移出的连接上数据传输的传输 序列状态,其中包括:上行 PDCP SDU的接收状态指示、首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意组 合。
本发明实施例实现了在双连接架构下对 UE与资源连接节点之间的连接 管理, 尤其实现了当资源连接节点不再适合为 UE提供信息传输或者不再适 合为 UE提供此前建立的全部连接的信息传输时的连接管理。
附图概述
图 1为相关技术中长期演进系统的系统架构图;
图 2为长期演进系统中引入双连接后的系统架构图;
图 3为本发明实施例连接管理方法的方法流程图;
图 4为本发明实施例连接管理方法适用场景的一种非限制性示意图; 图 5为本发明实施方式一的双连接无线接口控制面架构示意图; 图 6为本发明实施方式一实施例一的连接管理流程图;
图 7为本发明实施方式一实施例二的连接管理流程图;
图 8为本发明实施方式一实施例一的优化连接管理流程图;
图 9为本发明实施方式一实施例二的优化连接管理流程图; 图 10为本发明实施方式一实施例三的连接管理流程图;
图 11为本发明实施方式一的方法流程图;
图 12为本发明实施方式二的双连接无线接口控制面架构示意图; 图 13为本发明实施方式二实施例一的连接管理流程图;
图 14 为本发明实施方式二实施例二的连接管理流程图;
图 15 为本发明实施方式二实施例三的连接管理流程图;
图 16为本发明实施方式二的方法流程图。
本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
在图 2中, 在空中接口上 UE通过 Uul和 Uu2同时与 eNBl和 eNB2连 接,但为了减少对核心网的修改和信令冲击,控制面 UE只通过 eNBl连接到 MME, 即 eNBl实现了 UE与 MME的控制面接入锚点。 在本实施例中, 将 实现 UE控制面接入到 MME的锚点功能的接入网网元(比如图 2中的基站 eNBl )称为主连接节点, 而将 UE所连接的其他接入网网元(比如图 2中的 基站 eNB2 )称为资源连接节点。 在主连接节点为 UE提供信息传输之外, 资 源连接节点也可以为 UE提供信息传输, UE与主连接节点和资源连接节点之 间的信息传输, 视 UE的硬件能力和网络的配置情况, 可以是同时传输, 也 可以是以时分复用的方式协同传输。
本发明实施例提出一种连接管理方法, 尤其是针对资源连接节点不再适 合为 UE提供信息传输时的连接管理方法,也即: 针对需要删除 UE与资源连 接节点之间的连接的情况, 或者需要将 UE与资源连接节点之间的连接移动 到主连接节点, 此后主连接节点可以进一步的将所述连接移动到其他资源连 接节点的情况。 上述 UE与资源连接节点之间的连接至少包括: UE与资源连 接节点之间的用户面数据连接, 还可以包括 UE与资源连接节点之间的控制 面信令连接。
如图 3所示, UE原本与 2个以上的接入网网元建立了连接, 一种连接管 理方法, 应用于上述多连接场景下, 包括:
301. 主连接节点判断出需要删除或者移动 UE与一个资源连接节点之间 的部分或全部连接。
其中: 主连接节点可根据接收到的测量报告、 RRM ( Radio Resource Management, 无线资源管理)算法、 接收到的资源连接节点的负荷信息及业 务传输情况中的任意一个或任意组合的因素判断是否需要删除或者移动 UE 与一个资源连接节点之间的部分或全部连接。
302. 主连接节点发起删除或者移动操作, 所述操作包括:
302-1. 主连接节点指示所述资源连接节点删除或者移动所述连接; 其中主连接节点指示所述资源连接节点删除或者移动的所述连接是指所 述资源连接节点所承载的用于上述 UE的用户面数据传输的一个以上的无线 接入承载( Radio Access Bearer, 简称为 RAB ) , 所述无线接入承载在空中接 口上即指所述资源连接节点与所述 UE之间的用户面数据无线承载 (Data Radio Bear, 简称为 DRB ) 。
302-2. 主连接节点指示 UE删除或者移动所述连接; 或者, 资源连接节 点收到主连接节点发来的指示后, 指示所述 UE删除或者移动所述连接。
所述主连接节点或者所述资源连接节点指示 UE删除或者移动所述连接 的操作, 可以是由主连接节点或者该资源连接节点通过空中接口消息对该连 接进行重配置实现, 所述空中接口消息中指示 UE对所述连接进行重配置的 操作是删除所述连接, 还是删除所述连接并新建所述连接到 UE与主连接节 点之间, 后者即相当于将所述连接移动到主连接节点上。
其中主连接节点或者资源连接节点指示 UE删除或者移动的所述连接是 指所述 UE与所述资源连接节点之间的一个以上的用户面 DRB, 或者所述一 个以上的用户面 DRB和 UE与所述资源连接节点之间的一个以上的控制面信 令无线承载( Signaling Radio Bear, 简称为 SRB ) 。
其中, 302-2中若由主连接节点指示所述 UE删除或者移动所述连接, 则 操作 302-1和操作 302-2可以依次先后执行也可以并发执行; 若 302-2中由资 源连接节点在收到主连接节点的指示后, 指示所述 UE删除或者移动所述连 接, 则操作 302-1和操作 302-2依次先后执行。
通过上述方法, 对于删除 UE与资源连接节点之间的部分或者全部连接 的情况, 资源连接节点和 UE停止在所述删除的部分或者全部连接上接收和 发送信息。 对于将 UE与资源连接节点之间的部分或者全部连接移动到主连 接节点上的情况, 在移动成功后, 主连接节点和 UE继续在移动到主连接节 点上的连接上接收和发送信息, 从而实现了在连接发生删除或者移动后数据 的接续。
在实施时, 上述与 UE建立了连接的 2个以上的接入网网元可以但不限 于为基站。
图 4为上述连接管理方法应用于双连接场景下的一种非限制性示意图, UE在 A点处于节点 1所部署的小区 1和节点 2所部署的小区 2的共同覆盖区 域内, 因此 UE在 A点同时与节点 1和节点 2建立了连接, 其中节点 1为 UE 的主连接节点, 节点 2为 UE的资源连接节点。 UE的移动路径如图中箭头实 线所示, 当 UE从 A点移动到 B点时, 小区 2的信号质量变差, 不再适合为 UE提供信息传输, 因此需要删除 UE与节点 2之间的连接, 或者需要将 UE 与节点 2之间的连接移动到主连接节点。
以下以非限制性实施例为例并配以附图, 详细说明本发明的连接管理方 案。 虽然以下各非限制性实施方式均以 LTE系统下 UE与两个节点的双连接 为实例, 但并不限制本发明实施例可以应用到 UE与三个以上节点连接的实 例, 也不限制本发明实施例可以应用到其他无线网络系统。
实施方式一
图 5为本实施方式下, 双连接无线接口控制面架构的示意图。 其中主连 接节点和 UE上均部署无线资源控制 ( Radio Resource Control, 简称为 RRC ) 实体,主连接节点和 UE上的 RRC实体实现相关技术 LTE系统中所有的 RRC 功能, 包括系统广播消息的收发以及 RRC连接控制的所有功能。 资源连接节 点上可以部署 RRC实体(如图 5灰色虚线框所示) , 也可以不部署 RRC实 体。 对于资源连接节点上不部署 RRC实体的情况, 由主连接节点负责与 UE 之间的 RRC消息传输; 对于资源连接节点上部署 RRC实体的情况, 除可以 在主连接节点和 UE之间传输 RRC消息之外, 也可以在资源连接节点和 UE 之间传输 RRC消息。 在实施方式一中, 不论资源连接节点上是否部署 RRC 实体, 所有 RRC消息均在主连接节点和 UE之间传输。
实施例一
本实施例适用图 3所示场景, UE原来在主连接节点和资源连接节点之间 建立了双连接,此后 UE检测发现 UE所在的资源连接节点覆盖的小区(小区 2 )的信号质量变差, 不再适合 UE继续在所述资源连接节点上保持连接, 本 实施例中主连接节点确定将 UE与所述资源连接节点之间的连接移动到主连 接节点上。 如图 6所示, 连接管理方法包括:
601. UE向主连接节点上报测量报告。所述测量报告中包含小区 2的测量 结果;
602. 主连接节点接收到测量报告后, 根据测量报告和主连接节点的 RRM, 决定将 UE在资源连接节点上的连接移动到主连接节点上;
本实施例中 UE所在的资源连接节点覆盖的小区信号质量变差, 主连接 节点是根据测量报告和 RRM判断决定将 UE在资源连接节点上的连接移动到 主连接节点上, 这并不限制对于 UE所在的资源连接节点覆盖的小区信号质 量没有变差, 还适合为 UE继续提供连接时, 主连接节点根据自身的 RRM, 比如主连接节点判断主连接节点资源足够为 UE的所有连接提供服务时, 决 定将 UE在资源连接节点上的连接移动到主连接节点上。
603. 主连接节点向资源连接节点发送连接重配置请求;
其中, 连接重配置请求中包含主连接节点决定从所述资源连接节点移出 的连接的信息。 所述移出的连接的信息可以包括所述连接的标识信息; 还可 以包含主连接节点所提供的各移出的连接在该资源连接节点与主连接节点的 Xn接口上进行数据前转的上行和下行 GTP-U ( GPRS Tunnelling Protocol for the user plane, 用户面 GPRS隧道协议 )隧道标识信息; 还可以包含各移出的 连接是否进行数据前转的指示。 或者, 在本实施例中, 小区 2 的信号质量变差, 主连接节点决定将 UE 在资源连接节点上的所有连接移动到主连接节点上, 则所述连接重配置请求 消息中可以不包含任何连接的信息, 定义所述连接重配置消息本身即表示移 出 UE与资源连接节点之间的所有连接。
"连接重配置请求"只是本实施例的示例性消息名称, 消息名称不限于 本示例, 本说明适用于本发明实施例所有事实例中的所有消息名称。
604. 资源连接节点向主连接节点返回连接重配置响应。
连接重配置响应中包含资源连接节点移出的所有连接的信息, 所述连接 的信息可以包含连接的标识信息, 还可以包含每个移出的连接是否进行数据 前转的指示。 此外, 连接重配置响应消息中还可以包含各移出的连接上数据 传输的传输序列状态, 比如包括: 上行 PDCP SDU ( Packet Data Convergence Protocol Service Data Unit, 分组数据协议层服务数据包) 的接收状态指示、 首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号 中的任意一个或任意组合。 接重配置响应的消息 (图 6中的 604' )发送给主连接节点。
如果步骤 603指示需要进行数据前转, 与步骤 604同步的, 资源连接节 点通过 604-1前转数据给主连接节点。
605. 主连接节点发送 RRC连接重配置消息给 UE, 指示 UE将 UE与上 述资源连接节点之间的连接重配置到主连接节点上;
606. UE反馈 RRC连接重配置响应;
607. 本步骤可选, 主连接节点通知资源连接节点连接重配置成功, 即连 接移动成功。
根据本实施例的以上操作, 将 UE与资源连接节点之间的部分或者全部 连接移动到主连接节点上移动成功后, 主连接节点和 UE 可以继续在所述移 动到主连接节点上的连接上接收和发送信息, 从而实现了连接移动和数据的 接续。
优化的, 本实施例一中的连接管理流程可以优化为图 8 , 步骤 801、 802、 807分别同步骤 601、 602、 607; 步骤 803 , 步骤 804, 804' , 804-1说明分别 同步骤 603 , 步骤 604, 604' ; 步骤 803-x, 804-x说明分别同步骤 605 , 606。 即相当于, 与上述流程不同的是: 主连接节点指示资源连接节点移动 UE与 资源连接节点之间的连接的操作 (步骤 803 , 步骤 804,804,, 804-1 )和主连 接节点指示 UE移动本 UE与资源连接节点之间的连接的操作 (步骤 803-x, 步骤 804-x )可以并行执行。
实施例二
本实施例适用于 UE原来在主连接节点和资源连接节点之间建立了双连 接, 此后因业务流量下降, 为降低 UE和网络开销, 需要拆除 UE与资源连接 节点之间的连接, 退回到单连接状态的场景。 本实施例中主连接节点确定需 要删除 UE与资源连接节点之间的连接。 如图 7所示, 连接管理方法包括:
701. 主连接节点判断出业务流量下降, 当 UE与资源连接节点之间的数 据传输结束, 主连接节点决定删除 UE在资源连接节点上的连接;
702. 主连接节点向资源连接节点发送连接重配置请求, 所述连接重配置 请求中包含主连接节点决定删除的连接的信息。或者本实施例中, UE与资源 连接节点之间的数据传输已经结束, 所述连接重配置请求消息中可以不包含 任何连接的信息, 定义所述连接重配置消息本身即表示删除 UE与资源连接 节点之间的所有连接;
703.资源连接节点向主连接节点返回连接重配置响应, 所述连接重配置 响应中包含资源连接节点删除的所有连接的信息, 或者本实施例中 UE与资 源连接节点之间的数据传输已经结束, 所述连接重配置响应消息中可以不包 含任何连接的信息, 即可以表示资源连接节点已删除本资源连接节点与 UE 间的所有连接;
704. 主连接节点发送 RRC连接重配置消息给 UE, 该 RRC连接重配置 消息指示 UE删除与上述资源连接节点之间的所有连接;
705. UE反馈 RRC连接重配置响应;
706. 本步骤可选, 主连接节点通知资源连接节点连接重配置成功, 即连 接删除成功。
优选的, 本实施例中的连接管理流程可以优化为图 9 , 步骤 901、 906说 明分别同步骤 701、 706;步骤 902、 903说明分别同步骤 702、 703;步骤 902-x、 903-x说明分别同步骤 704、 705。 即相当于, 与上述流程不同的是: 主连接 节点指示资源连接节点删除 UE与资源连接节点之间的连接的操作(步骤 902、 903 )和主连接节点指示 UE删除 UE与资源连接节点之间的连接的操作 (步 骤 902-x, 步骤 903-x )可以并行执行。
根据本实施例的以上操作, 删除 UE与资源连接节点之间的部分或者全 部连接后, 资源连接节点和 UE停止在所述删除的部分或者全部连接上接收 和发送信息。
实施例三
本实施例适用于 UE原来在主连接节点和资源连接节点之间建立了双连 接, 此后因资源连接节点负荷太大, 需要将 UE与资源连接节点之间的部分 或者全部连接移动到主连接节点的情景。 本实施例中主连接节点决定并发起 将 UE与资源连接节点之间的部分或者全部连接移动到主连接节点。 如图 10 所示, 本实施例的连接管理方法包括:
1001. 资源连接节点将自身的负荷信息通知给主连接节点。 所述负荷信 息可以包括: 硬件负荷、 传输层负荷、 无线资源负荷及干扰负荷等信息中的 任意一种或任意几种组合;
1002. 主连接节点根据接收到的负荷信息和 RRM算法,决定将资源连接 节点上的部分或全部连接移动到主连接节点。 当然根据主连接节点的负荷和 RRM算法结果,主连接节点也可以选择将资源连接节点上的部分或者全部连 接删除。
1003-1007. 同实施例一步骤 603~607的说明, 不再进行赞述。
优选的, 可以对图 10所示的连接管理流程进行优化, 即主连接节点指示 资源连接节点移动 UE与资源连接节点之间的连接的操作 (步骤 1003,1003' , 1003-1,1004 )可以和主连接节点指示 UE移动 UE与资源连接节点之间的连 接的操作 (步骤 1005,1006 )并发执行。
根据本实施例的以上操作, 将 UE与资源连接节点之间的部分或者全部 连接移动到主连接节点成功后, 主连接节点和 UE可以继续在所述移动到主 连接节点上的连接上接收和发送信息, 从而实现了连接移动和数据的接续。
综合以上三个实施例, 图 11为实施方式一的方法流程图。 4叚设 UE原本 与 2个以上的连接节点建立了连接, 如图 11所示, 一种连接管理方法包括:
1101. 主连接节点判断需要删除或者移动 UE与一个资源连接节点之间 的部分或全部连接。
其中主连接节点根据接收到的测量报告、 RRM算法、接收到的资源节点 的负荷信息、 业务传输情况中的一个或任意多个因素判断是否需要删除或者 移动 UE与一个资源连接节点之间的部分或全部连接;
1102. 主连接节点发起所述删除或者移动操作, 所述操作包括:
1102-1. 主连接节点指示所述资源连接节点删除或者移动所述连接; 1102-2. 主连接节点指示所述 UE删除或者移动所述连接。
其中以上操作 1102-1和操作 1102-2可以依次先后执行也可以并发执行。 釆用实施方式一的方法, 对于删除 UE与资源连接节点之间的部分或者 全部连接的情况, 资源连接节点和 UE停止在所述删除的部分或者全部连接 上接收和发送信息; 对于将 UE与资源连接节点之间的部分或者全部连接移 动到主连接节点上的情况, 移动成功后, 主连接节点和 UE可以继续在所述 移动到主连接节点上的连接上接收和发送信息, 从而实现了连接的删除或者 连接的移动和数据的接续, 实现了在多连接架构下对 UE与资源连接节点之 间的连接管理。
实施方式二
图 12为本实施方式下, 双连接无线接口控制面架构的示意图。 其中主连 接节点和 UE上均部署 RRC实体,主连接节点和 UE上的 RRC实体实现相关 技术 LTE系统中所有的 RRC功能, 包括系统广播消息的收发以及 RRC连接 控制的所有功能。 资源连接节点上也部署有 RRC实体, 除可以在主连接节点 和 UE之间传输 RRC消息之外 ,也可以在资源连接节点和 UE之间传输 RRC 消息。
实施例一
本实施例适用图 3所示场景, UE原来在主连接节点和资源连接节点之间 建立了双连接,此后 UE检测发现 UE所在的资源连接节点覆盖的小区(小区 2 )的信号质量变差, 不再适合 UE继续在所述资源连接节点上保持连接, 本 实施例中主连接节点决策确定将 UE与该资源连接节点之间的连接移动到主 连接节点上。 图 13为实施方式二实施例一的连接管理流程图, 包括:
1301-1303. 同实施方式一实施例一步骤 601 603的描述, 在此不再进行 赘述;
1304. 资源连接节点向主连接节点返回连接重配置响应, 同实施方式一 实施例一步骤 604的描述;
步骤 1034' , 1034-1的操作也同实施方式一实施例一步骤 604' , 604-1的 描述;
1304-x. 本步骤与步骤 1304可以并发执行。资源连接节点发送 RRC连接 重配置消息给 UE, 即由资源连接节点指示 UE将 UE与资源连接节点之间的 连接重配置到主连接节点上;
1035-1036. 同实施方式一实施例一步骤 606~607的描述。
实施例二
本实施例适用于 UE原来在主连接节点和资源连接节点之间建立了双连 接, 此后因业务流量下降, 为降低 UE和网络开销, 需要删除 UE与资源连接 节点之间的连接, 退回到单连接状态。 本实施例中主连接节点确定需要删除 UE与资源连接节点之间的连接。 图 14为实施方式二实施例二的连接管理流 程图, 包括:
1401-1402. 同实施方式一实施例二步骤 701 702的描述, 在此不再进行 赘述;
1403. 资源连接节点向主连接节点返回连接重配置响应, 所述连接重配 置响应中包含资源连接节点删除的所有连接的信息, 或者本实施例中 UE与 资源连接节点之间的数据传输已经结束, 所述连接重配置响应消息中可以不 包含任何连接的信息;
1403-x.资源连接节点发送 RRC连接重配置消息给 UE, 指示 UE删除与 资源连接节点之间的所有用户面数据连接; 本步骤与步骤 1403 可以并发执 行;
1404. 步骤 1403-x中删除了 UE与资源连接节点之间的所有用户面数据 连接, 但是保留了 UE与资源连接节点之间的控制面信令连接, 因此在本实 施例中, UE反馈 RRC连接重配置响应消息给资源连接节点。
实施例三
本实施例适用于 UE原来在主连接节点和资源连接节点之间建立了双连 接, 此后因资源连接节点负荷太大, 需要将 UE与资源连接节点之间的部分 或者全部连接移动到主连接节点。 本实施例中主连接节点决定并发起将 UE 与资源连接节点之间的部分或者全部连接移动到主连接节点。图 15为实施方 式二实施例三的连接管理流程图, 包括:
1501-1503. 同实施方式一实施例三步骤 1001~1003描述, 在此不再进行 赘述;
1504、 1504,、 1504-1. 同实施方式一实施例一步骤 604、 604,、 604-1描 述。
1504-x. 本步骤和 1504同步执行,资源连接节点发送 RRC连接重配置消 息给 UE, 指示 UE删除与资源连接节点之间的所有用户面数据连接;
1505. 步骤 1403-x中删除了 UE与资源连接节点之间的所有用户面数据 连接, 但是保留了 UE与资源连接节点之间的控制面信令连接, 因此本实施 例中, UE反馈 RRC连接重配置响应消息给资源连接节点。 当然, 本实施例 中, 步骤 1504-x也可以删除 UE与资源连接节点之间的所有用户面数据连接 和控制面信令连接, 这样则本步骤 UE反馈 RRC连接重配置响应消息给主连 接节点。
综合以上三个实施例, 如图 16所示, 实施方式二的连接管理方法, 应用 于 UE原本与 2个以上的连接节点建立了连接的情形, 包括:
1601. 主连接节点判断需要删除或者移动 UE与一个资源连接节点之间 的部分或全部连接;
其中主连接节点根据接收到的测量报告、 RRM算法、接收到的资源节点 的负荷信息、 业务传输情况中的一个或任意多个因素判断是否需要删除或者 移动 UE与一个资源连接节点之间的部分或全部连接;
1602. 主连接节点发起所述删除或者移动操作, 所述操作包括:
1602-1. 主连接节点指示所述资源连接节点删除或者移动所述连接;
1602-2. 资源连接节点收到主连接节点的指示后,指示所述 UE删除或者 移动所述连接。
其中以上操作 1602-1和操作 1602-2依次先后执行。
釆用实施方式二的方法, 对于删除 UE与资源连接节点之间的部分或者 全部连接的情况, 资源连接节点和 UE停止在所述删除的部分或者全部连接 上接收和发送信息。 对于将 UE与资源连接节点之间的部分或者全部连接移 动到主连接节点上的情况, 在移动成功后, 主连接节点和 UE可以继续在所 述移动到主连接节点上的连接上接收和发送信息, 从而实现了连接的删除或 者连接的移动和数据的接续, 实现了在多连接架构下对 UE于资源连接节点 之间的连接管理。
此外, 在本实施例中, 还提供了一种接入网网元, 包括:
确定模块, 设置为在所述接入网网元作为主连接节点时, 确定是否需要 删除或者移动所述 UE与一个资源连接节点之间的至少部分连接;
指示模块, 设置为在所述接入网网元作为主连接节点时, 在所述确定模 块确定出需要删除或者移动所述 UE与一个资源连接节点之间的至少部分连 接时, 指示所述资源连接节点相应地删除或者移动所述至少部分连接。
较佳地,
所述指示模块还设置为在所述接入网网元作为主连接节点时, 在所述确 定模块确定出需要删除或者移动所述 UE与一个资源连接节点之间的至少部 分连接时, 指示所述 UE相应地删除或者移动所述至少部分连接, 或者, 还 设置为在所述接入网网元作为资源连接节点时, 在接收到主连接节点发来的 删除或者移动至少部分连接的指示后, 指示所述 UE相应地删除或者移动所 述至少部分连接。
较佳地,
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述资 源连接节点所承载的用于用户面数据传输的至少部分无线接入承载( RAB ) 。
较佳地,
所述指示模块, 设置为在所述接入网网元作为主连接节点时, 指示所述 UE相应地删除或者移动所述至少部分连接, 包括:
所述指示模块设置为在所述接入网网元作为主连接节点时, 在指示所述 资源连接节点相应地删除或者移动所述至少部分连接的同时, 指示所述 UE 相应地删除或者移动所述至少部分连接; 或者,
所述指示模块设置为在所述接入网网元作为主连接节点时, 在获知所述 资源连接节点已相应地删除或者移动所述至少部分连接后, 指示所述 UE相 应地删除或者移动所述至少部分连接。
较佳地,
所述指示模块设置为指示所述 UE删除或者移动所述至少部分连接, 包 括:
所述指示模块设置为指示所述 UE删除或者移动所述 UE与所述资源连接 节点之间的至少一个用户面数据无线承载(DRB ) 、 或者所述至少一个用户 面 DRB和所述 UE与所述资源连接节点之间的至少一个控制面信令无线承载 ( SRB ) 。
较佳地,
所述确定模块设置为确定是否需要删除或者移动所述 UE与一个资源连 接节点之间的至少部分连接, 包括:
所述确定模块设置为根据接收到的测量报告、 无线资源管理(RRM )算 法、 接收到的资源节点的负荷信息及业务传输情况中的至少一个因素判断是 否需要删除或者移动所述 UE与一个资源连接节点之间的至少部分连接。
较佳地,
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为向所述资源连接节点发起连接重配置请求, 其中携 带所述主连接节点决定删除的、或者决定从资源连接节点移出的连接的信息; 其中, 所述连接的信息至少包括所述连接的标识信息。
较佳地,
所述连接的信息中还包括所述指示模块所提供的各删除的 /移出的连接 在所述资源连接节点与主连接节点的 Xn接口上进行数据前转的上行和下行 用户面 GPRS隧道协议隧道标识信息。
较佳地,
所述连接的信息中还包括所述各删除的 /移出的连接是否进行数据前转 的指示信息;
所述接入网网元在作为资源连接节点时, 还包括:
发送模块, 设置为在判断出所述是否进行数据前转的指示信息的值表示 需要进行数据前转时, 将数据前转给所述主连接节点。
较佳地, 所述接入网网元中还包括:
发送模块, 设置为在所述接入网网元作为资源连接节点时, 在根据所述 主连接节点的指示相应地完成连接的删除 /移出后, 向所述主连接节点发送删 除的 /移出的所有连接的信息; 其中, 至少包括所述删除的 /移出的所有连接的 标识信息。
较佳地,
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包括各删 除的 /移出的连接是否进行数据前转的指示。 较佳地,
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包含每个 删除的 /移出的连接上数据传输的传输序列状态, 其中包括: 上行分组数据协 议层服务数据包(PDCP SDU )的接收状态指示、首个丟失的上行 PDCP SDU 的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几个的 组合。
较佳地,
所述发送模块还设置为在根据所述主连接节点的指示相应地完成连接的 删除 /移出后,向所述主连接节点发送各删除的 /移出的连接上数据传输的传输 序列状态,其中包括:上行 PDCP SDU的接收状态指示、首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几 个的组合。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的每个模块 /单元可以釆 用硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明实施例不 限制于任何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已, 并非用于限定本发明实施例的 保护范围。 根据本发明实施例的发明内容, 还可有其他多种实施例, 在不背 离本发明实施例精神及其实质的情况下, 熟悉本领域的技术人员当可根据本 发明实施例作出各种相应的改变和变形, 凡在本发明实施例的精神和原则之 内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明实施例的保护 范围之内。
工业实用性
本发明实施例实现了在双连接架构下对 UE与资源连接节点之间的连接 管理, 尤其实现了当资源连接节点不再适合为 UE提供信息传输或者不再适 合为 UE提供此前建立的全部连接的信息传输时的连接管理。

Claims

权 利 要 求 书
1、 一种连接管理方法, 其特征在于, 应用于用户设备(UE ) 同时与至 少两个接入网网元建立连接的场景, 包括:
主连接节点在确定需要删除或者移动所述 UE与一个资源连接节点之间 的至少部分连接时, 指示所述资源连接节点相应地删除或者移动所述至少部 分连接, 由所述资源连接节点或所述主连接节点指示所述 UE相应地删除或 者移动所述至少部分连接。
2、 如权利要求 1所述的方法, 其中:
所述指示所述资源连接节点相应地删除或者移动所述至少部分连接, 包 括:
所述主连接节点指示所述资源连接节点相应地删除或者移动所述资源连 接节点所承载的用于用户面数据传输的至少部分无线接入承载(RAB ) 。
3、 如权利要求 1所述的方法, 其中:
所述由所述主连接节点指示所述 UE相应地删除或者移动所述至少部分 连接, 包括:
所述主连接节点在指示所述资源连接节点相应地删除或者移动所述至少 部分连接的同时, 指示所述 UE相应地删除或者移动所述至少部分连接; 或 者,
所述主连接节点在获知所述资源连接节点已相应地删除或者移动所述至 少部分连接后, 指示所述 UE相应地删除或者移动所述至少部分连接。
4、 如权利要求 1所述的方法, 其中:
所述由所述资源连接节点指示所述 UE相应地删除或者移动所述至少部 分连接, 包括:
所述资源连接节点在收到所述主连接节点的指示后, 指示所述 UE相应 地删除或者移动所述至少部分连接。
5、 如权利要求 1、 3或 4所述的方法, 其中:
所述指示所述 UE删除或者移动所述至少部分连接, 包括: 指示所述 UE删除或者移动所述 UE与所述资源连接节点之间的至少一个 用户面数据无线承载( DRB )、 或者所述至少一个用户面 DRB和所述 UE与 所述资源连接节点之间的至少一个控制面信令无线承载(SRB ) 。
6、 如权利要求 1所述的方法, 其中:
所述主连接节点确定需要删除或者移动所述 UE与一个资源连接节点之 间的至少部分连接, 包括:
所述主连接节点根据接收到的测量报告、 无线资源管理(RRM )算法、 接收到的资源节点的负荷信息及业务传输情况中的至少一个因素判断是否需 要删除或者移动所述 UE与一个资源连接节点之间的至少部分连接。
7、 如权利要求 1所述的方法, 其中:
所述指示所述资源连接节点相应地删除或者移动所述至少部分连接, 包 括:
向所述资源连接节点发起连接重配置请求, 其中携带所述主连接节点决 定删除的、 或者决定从资源连接节点移出的连接的信息;
其中, 所述连接的信息至少包括所述连接的标识信息。
8、 如权利要求 7所述的方法, 其中:
所述连接的信息中还包括所述主连接节点所提供的各删除的 /移出的连 接在所述资源连接节点与主连接节点的 Xn接口上进行数据前转的上行和下 行用户面 GPRS隧道协议隧道标识信息。
9、 如权利要求 7或 8所述的方法, 其中:
所述连接的信息中还包括所述各删除的 /移出的连接是否进行数据前转 的指示信息;
所述资源连接节点在判断出所述是否进行数据前转的指示信息的值表示 需要进行数据前转时, 将数据前转给所述主连接节点。
10、 如权利要求 1、 7或 8所述的方法, 还包括:
所述资源连接节点在根据所述主连接节点的指示相应地完成连接的删除 /移出后, 向所述主连接节点发送删除的 /移出的所有连接的信息; 其中, 至少 包括所述删除的 /移出的所有连接的标识信息。
11、 如权利要求 10所述的方法, 其中:
所述删除的 /移出的所有连接的信息中还包括各删除的 /移出的连接是否 进行数据前转的指示。
12、 如权利要求 10所述的方法, 其中:
所述所有连接的信息中还包含各删除的 /移出的连接上数据传输的传输 序列状态, 其中包括: 上行分组数据协议层服务数据包(PDCP SDU ) 的接 收状态指示、 首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几个的组合。
13、 如权利要求 10所述的方法, 其中:
所述资源连接节点在根据所述主连接节点的指示相应地完成连接的删除 /移出后,向所述主连接节点发送各删除的 /移出的连接上数据传输的传输序列 状态, 其中包括: 上行 PDCP SDU的接收状态指示、 首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几 个的组合。
14、 如权利要求 1所述的方法, 还包括:
在接收到所述主连接节点发来的指示后,所述资源连接节点删除所述 UE 与所述资源连接节点之间的所有连接。
15、 如权利要求 1、 3或 5所述的方法, 还包括:
所述 UE在相应地删除或者移动所述至少部分连接后, 向所述主连接节 点发送口向应。
16、 如权利要求 15所述的方法, 还包括:
在收到所述 UE回复的所述响应后, 通知所述资源连接节点删除或者移 动成功。
17、 一种接入网网元, 包括:
确定模块, 设置为在所述接入网网元作为主连接节点时, 确定是否需要 删除或者移动所述 UE与一个资源连接节点之间的至少部分连接; 指示模块, 设置为在所述接入网网元作为主连接节点时, 在所述确定模 块确定出需要删除或者移动所述 UE与一个资源连接节点之间的至少部分连 接时, 指示所述资源连接节点相应地删除或者移动所述至少部分连接。
18、 如权利要求 17所述的接入网网元, 其中:
所述指示模块还设置为在所述接入网网元作为主连接节点时, 在所述确 定模块确定出需要删除或者移动所述 UE与一个资源连接节点之间的至少部 分连接时, 指示所述 UE相应地删除或者移动所述至少部分连接, 或者, 还 设置为在所述接入网网元作为资源连接节点时, 在接收到主连接节点发来的 删除或者移动至少部分连接的指示后, 指示所述 UE相应地删除或者移动所 述至少部分连接。
19、 如权利要求 17所述的接入网网元, 其中:
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述资 源连接节点所承载的用于用户面数据传输的至少部分无线接入承载( RAB ) 。
20、 如权利要求 18所述的接入网网元, 其中:
所述指示模块, 设置为在所述接入网网元作为主连接节点时, 指示所述 UE相应地删除或者移动所述至少部分连接, 包括:
所述指示模块设置为在所述接入网网元作为主连接节点时, 在指示所述 资源连接节点相应地删除或者移动所述至少部分连接的同时, 指示所述 UE 相应地删除或者移动所述至少部分连接; 或者,
所述指示模块设置为在所述接入网网元作为主连接节点时, 在获知所述 资源连接节点已相应地删除或者移动所述至少部分连接后, 指示所述 UE相 应地删除或者移动所述至少部分连接。
21、 如权利要求 17或 20所述的接入网网元, 其中:
所述指示模块用于指示所述 UE删除或者移动所述至少部分连接, 包括: 所述指示模块设置为指示所述 UE删除或者移动所述 UE与所述资源连接 节点之间的至少一个用户面数据无线承载(DRB ) 、 或者所述至少一个用户 面 DRB和所述 UE与所述资源连接节点之间的至少一个控制面信令无线承载 ( SRB ) 。
22、 如权利要求 17所述的接入网网元, 其中:
所述确定模块设置为确定是否需要删除或者移动所述 UE与一个资源连 接节点之间的至少部分连接, 包括:
所述确定模块设置为根据接收到的测量报告、 无线资源管理(RRM )算 法、 接收到的资源节点的负荷信息及业务传输情况中的至少一个因素判断是 否需要删除或者移动所述 UE与一个资源连接节点之间的至少部分连接。
23、 如权利要求 17所述的接入网网元, 其中:
所述指示模块设置为指示所述资源连接节点相应地删除或者移动所述至 少部分连接, 包括:
所述指示模块设置为向所述资源连接节点发起连接重配置请求, 其中携 带所述主连接节点决定删除的、或者决定从资源连接节点移出的连接的信息; 其中, 所述连接的信息至少包括所述连接的标识信息。
24、 如权利要求 23所述的接入网网元, 其中:
所述连接的信息中还包括所述指示模块所提供的各删除的 /移出的连接 在所述资源连接节点与主连接节点的 Xn接口上进行数据前转的上行和下行 用户面 GPRS隧道协议隧道标识信息。
25、 如权利要求 23或 24所述的接入网网元, 其中:
所述连接的信息中还包括所述各删除的 /移出的连接是否进行数据前转 的指示信息;
所述接入网网元在作为资源连接节点时, 还包括:
发送模块, 设置为在判断出所述是否进行数据前转的指示信息的值表示 需要进行数据前转时, 将数据前转给所述主连接节点。
26、 如权利要求 17、 23或 24所述的接入网网元, 还包括:
发送模块, 设置为在所述接入网网元作为资源连接节点时, 在根据所述 主连接节点的指示相应地完成连接的删除 /移出后, 向所述主连接节点发送删 除的 /移出的所有连接的信息; 其中, 至少包括所述删除的 /移出的所有连接的 标识信息。
27、 如权利要求 26所述的接入网网元, 其中:
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包括各删 除的 /移出的连接是否进行数据前转的指示。
28、 如权利要求 26所述的接入网网元, 其中:
所述发送模块发送的所述删除的 /移出的所有连接的信息中还包含各删 除的 /移出的连接上数据传输的传输序列状态, 其中包括: 上行分组数据协议 层服务数据包(PDCP SDU ) 的接收状态指示、 首个丟失的上行 PDCP SDU 的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几个的 组合。
29、 如权利要求 26所述的接入网网元, 其中:
所述发送模块还设置为在根据所述主连接节点的指示相应地完成连接的 删除 /移出后,向所述主连接节点发送各删除的 /移出的连接上数据传输的传输 序列状态,其中包括:上行 PDCP SDU的接收状态指示、首个丟失的上行 PDCP SDU的计数号及首个丟失的下行 PDCP SDU的计数号中的任意一个或任意几 个的组合。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714330B (zh) * 2015-11-12 2022-01-28 中兴通讯股份有限公司 一种数据无线承载类型获取方法和装置
WO2018018621A1 (zh) 2016-07-29 2018-02-01 广东欧珀移动通信有限公司 建立辅连接的方法和装置
WO2018103009A1 (zh) * 2016-12-07 2018-06-14 华为技术有限公司 删除数据无线承载的方法、用户设备以及接入网功能实体
WO2018153487A1 (en) * 2017-02-27 2018-08-30 Huawei Technologies Duesseldorf Gmbh User equipment and network entity for a wireless communication network
CN109391362B (zh) 2017-08-11 2022-07-29 中兴通讯股份有限公司 一种信令传输方法及装置
CN111757397B (zh) * 2019-03-28 2021-11-16 大唐移动通信设备有限公司 一种进行数据前转的方法及设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101502019A (zh) * 2006-07-14 2009-08-05 高通股份有限公司 支持多个连接的方法和装置
CN103155687A (zh) * 2010-10-01 2013-06-12 交互数字专利控股公司 用于协调不连续接收drx的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8644797B2 (en) * 2001-12-26 2014-02-04 Apple Inc. Content-based billing service for wireless prepaid subscribers
US9025536B2 (en) * 2009-03-26 2015-05-05 Qualcomm Incorporated Apparatus and methods of whitespace communication
JP6429396B2 (ja) * 2012-06-08 2018-11-28 ▲ホア▼▲ウェイ▼技術有限公司Huawei Technologies Co.,Ltd. 基地局、ユーザ機器、および通信方法
CN103945559B (zh) * 2013-01-18 2019-02-15 中兴通讯股份有限公司 网络接入系统及方法
US9173147B2 (en) * 2013-01-18 2015-10-27 Blackberry Limited Communicating data using a local wireless access network node
US9578671B2 (en) * 2013-03-15 2017-02-21 Blackberry Limited Establishing multiple connections between a user equipment and wireless access network nodes
WO2014179933A1 (en) * 2013-05-07 2014-11-13 Nokia Corporation Method and apparatus for dynamic charging over multiple network nodes
CN104185209B (zh) * 2013-05-24 2019-11-19 中兴通讯股份有限公司 一种小蜂窝基站接入系统及其实现网络接入的方法
US9497682B2 (en) * 2013-06-07 2016-11-15 Intel Corporation Central processing unit and methods for supporting coordinated multipoint transmission in an LTE network
US9648514B2 (en) * 2013-08-09 2017-05-09 Blackberry Limited Method and system for protocol layer enhancements in data offload over small cells

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101502019A (zh) * 2006-07-14 2009-08-05 高通股份有限公司 支持多个连接的方法和装置
CN103155687A (zh) * 2010-10-01 2013-06-12 交互数字专利控股公司 用于协调不连续接收drx的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3032912A4 *

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CN104378842A (zh) 2015-02-25
EP3032912A4 (en) 2016-09-07
JP6290413B2 (ja) 2018-03-07
JP2016530809A (ja) 2016-09-29
US20160198517A1 (en) 2016-07-07

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