CN110839298B - Mobility management method and related equipment - Google Patents

Mobility management method and related equipment Download PDF

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Publication number
CN110839298B
CN110839298B CN201810941416.1A CN201810941416A CN110839298B CN 110839298 B CN110839298 B CN 110839298B CN 201810941416 A CN201810941416 A CN 201810941416A CN 110839298 B CN110839298 B CN 110839298B
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connection
configuration information
connection configuration
target node
terminal device
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CN110839298A (en
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吴昱民
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

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Abstract

The invention provides a mobility management method and related equipment, wherein the method comprises the following steps: receiving first connection configuration information and second connection configuration information; simultaneously establishing the connection between the terminal equipment and a source node and the connection between the terminal equipment and a target node respectively according to the first connection configuration information; and under the condition that a triggering condition is met, reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information. By the mobility management method provided by the invention, the capability of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node can be increased, so that the transmission rate of the connection between the terminal equipment and the target node is improved.

Description

Mobility management method and related equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a mobility management method and a related device.
Background
In a future mobile communication system (for example, a 5G (5 th-Generation) mobile communication system), since an interruption delay of a mobility procedure of 0ms is to be satisfied, it is necessary that a UE (User Equipment) (which may also be referred to as a terminal device) is connected to a source node and a target node simultaneously during a movement procedure to transmit and receive data. However, during the mobility management (e.g., handover, SCG (Secondary Cell Group) Change (i.e., Change), SCG Addition (i.e., SCG Addition), etc.), since the UE needs to maintain connection with the source node and the target node at the same time, the connection between the UE and the target node can only use part of the capability of the UE, which may cause the transmission rate of the connection between the UE and the target node to decrease.
In the prior art, no effective solution is proposed at present for the problem that the transmission rate of the connection between the UE and the target node is reduced because the UE needs to maintain the connection with the source node in the mobility management process.
Disclosure of Invention
Embodiments of the present invention provide a mobility management method and related devices, so as to solve a problem that a transmission rate of a connection between a UE and a target node is reduced because the UE needs to maintain a connection with a source node in a mobility management process.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a mobility management method. The method comprises the following steps:
receiving first connection configuration information and second connection configuration information;
simultaneously establishing the connection between the terminal equipment and a source node and the connection between the terminal equipment and a target node respectively according to the first connection configuration information;
and under the condition that a triggering condition is met, reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
In a second aspect, an embodiment of the present invention further provides a mobility management method. The method comprises the following steps:
and sending first connection configuration information and second connection configuration information to terminal equipment, wherein the first connection configuration information is used for the terminal equipment to simultaneously keep connection with a source node and a target node, and the second connection configuration information is used for reconfiguring the connection between the terminal equipment and the target node.
In a third aspect, an embodiment of the present invention further provides a terminal device. The terminal device includes:
a receiving module, configured to receive first connection configuration information and second connection configuration information;
the establishing module is used for simultaneously establishing the connection between the terminal equipment and the source node and the connection between the terminal equipment and the target node according to the first connection configuration information;
and the reconfiguration module is used for reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information under the condition that the triggering condition is met.
In a fourth aspect, an embodiment of the present invention further provides a network node. The network node comprises:
a first sending module, configured to send first connection configuration information and second connection configuration information to a terminal device, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node.
In a fifth aspect, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the mobility management method provided in the first aspect.
In a sixth aspect, an embodiment of the present invention further provides a network node, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program implements the steps of the mobility management method provided in the second aspect.
In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the mobility management method provided in the first aspect, or implements the steps of the mobility management method provided in the second aspect.
In the embodiment of the invention, the first connection configuration information and the second connection configuration information are received; simultaneously establishing the connection between the terminal equipment and a source node and the connection between the terminal equipment and a target node respectively according to the first connection configuration information; and under the condition that a triggering condition is met, reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information. The second connection configuration information is used for reconfiguring the connection between the terminal equipment and the target node, so that the capacity of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node can be increased, and the transmission rate of the connection between the terminal equipment and the target node is improved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram illustrating correspondence between protocol entities of an MCG bearer and an SCG bearer and a cell group, respectively, according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a correspondence relationship between a protocol entity and a cell group of a split bearer according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a correspondence relationship between a protocol entity of a duplicate bearer and a cell group according to an embodiment of the present invention;
fig. 4 is a block diagram of a network system to which an embodiment of the present invention is applicable;
fig. 5 is a flowchart of a mobility management method according to an embodiment of the present invention;
fig. 6 is a flowchart of another mobility management method provided in an embodiment of the present invention;
fig. 7 is a flowchart of another mobility management method provided in an embodiment of the present invention;
fig. 8 is a structural diagram of a terminal device according to an embodiment of the present invention;
fig. 9 is a structural diagram of a network node according to an embodiment of the present invention;
fig. 10 is a block diagram of another terminal device provided in the embodiment of the present invention;
fig. 11 is a block diagram of another network node according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented, for example, in a sequence other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B and/or C, means that 7 cases are included that include a alone, B alone, C alone, and both a and B, B and C, a and C, and A, B and C.
For ease of understanding, some terms referred to in the embodiments of the present invention are described below:
DC (Dual Connectivity) architecture
Two Cell groups, namely, MCG (Master Cell Group) and SCG (Secondary Cell Group), are arranged under the DC architecture. The MCG corresponds to a Master Node (MN) on the network side, and the SCG corresponds to a Secondary Node (SN) on the network side. In addition, the MCG may include one Primary Cell (PCell), and one or more Secondary cells (scells), and the Secondary Cell group may include one Primary Secondary Cell (PSCell), and one or more scells.
In future mobile communication systems (e.g., 5G (5 th-Generation) systems), since a DC architecture is adopted and a PDCP (Packet Data Convergence Protocol) replication function is supported, different types of Bearer types (i.e., Bearer types) are generated, wherein the Bearer types include:
MCG Bearer (i.e. MCG Bearer): the bearer corresponds to a PDCP (packet data convergence protocol), an RLC (Radio Link Control), and a MAC (Medium Access Control) entity MCG, as shown in fig. 1.
SCG Bearer (i.e. SCG Bearer): the bearer corresponds to PDCP, RLC and MAC entities SCG as shown in fig. 1.
Split Bearer (i.e. Split Bearer): the bearer has a PDCP entity in 1 cell group, and 2 RLC entities and 2 MAC entities in different cell groups, as shown in fig. 2.
Copy Bearer (i.e. Duplicate Bearer): the bearer has 1 PDCP entity, 2 RLC entities and 1 MAC entity in 1 cell group, as shown in fig. 3.
A source node: it may be a source cell or a source base station or a source MN or a source SN of the UE in a mobility management procedure.
The target node: it may be a target cell or a target base station or a target MN or a target SN of the UE in the mobility management procedure.
Referring to fig. 4, fig. 4 is a structural diagram of a network system to which an embodiment of the present invention is applicable, and as shown in fig. 4, includes a terminal device 11, a source node 12, and a destination node 13. The terminal Device 11 may also be referred to as a User Equipment (UE), and the terminal Device 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and it should be noted that a specific type of the terminal Device 11 is not limited in the embodiment of the present invention. The source node 12 may be one of the network nodes to which the terminal device 11 is currently connected, for example: the network node to which the terminal device 11 is currently connected includes MN and SN, and the source node 12 may be one of MN and SN. And the target node 13 may be a network node to which the terminal device 11 is currently connected.
In addition, in the embodiment of the present invention, the network node may be a base station of 5G and later versions (for example, a 5G NR NB), or a base station in other communication systems, or referred to as a node B, an evolved node B, or an MN, or an SN, or other vocabularies in the field, and the base station is not limited to a specific technical vocabulary as long as the same technical effect is achieved.
In Addition, the embodiment of the present invention may be applied to a handover process, that is, the source node 12 and the target node 13 may be a source base station and a target base station in the handover process, and may also be applied to a DC architecture (for example, an SCG Change (SCG Change) or an SCG Addition (SCG Addition) process), that is, the source node 12 and the target node 13 may be a source SN and a target SN in the DC architecture, or a source MN and a target SN in the DC architecture.
In this embodiment of the present invention, the source node 12 may send request information for mobility management to the target node 13, where the request information for mobility management includes first connection management request information, and the first connection management request information is used to request that the terminal device is simultaneously connected to the source node and the target node.
After receiving the mobility management request information, the target node 13 may send first connection configuration information and second connection configuration information to the source node 12, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with the source node and the target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node. Specifically, the first connection configuration information and the second connection configuration information may include configuration information of a cell, configuration information of a higher layer entity (e.g., an L2 entity) corresponding to the cell, and the like.
Optionally, the first connection configuration information and the second connection configuration information may be sent through the same signaling (for example, RRC (Radio Resource Control) signaling), or may be sent through different signaling.
The source node 12 transmits the received first connection configuration information and second connection configuration information to the terminal device 11. And the terminal equipment 11 simultaneously establishes the connections between the terminal equipment 11 and the source node 12 and the target node 13 respectively according to the first connection configuration information, and reconfigures the connection between the terminal equipment 11 and the target node 13 according to the second connection configuration information under the condition that a trigger condition is met.
In the embodiment of the present invention, because the connections between the terminal device 11 and the source node 12 and the target node 13 are simultaneously established based on the first connection configuration information, the interruption delay in the mobility process of the terminal device 11 can be reduced, and in addition, the connection between the terminal device 11 and the target node 13 can be reconfigured based on the second connection configuration information after the mobility process is finished, the capability of the terminal device that can be used by the target node 13 after the terminal device 11 is connected to the target node 13 can be increased, and thus the transmission rate of the connection between the terminal device 11 and the target node 13 is increased.
It should be noted that specific functions of the terminal device 11, the source node 12 and the destination node 13 in the embodiment of the present invention will be described in detail through a plurality of embodiments below.
The embodiment of the invention provides a mobility management method which is applied to terminal equipment. Referring to fig. 5, fig. 5 is a flowchart of a mobility management method according to an embodiment of the present invention, and as shown in fig. 5, the method includes the following steps:
step 501, receiving first connection configuration information and second connection configuration information.
In this embodiment of the present invention, the terminal device may receive the first connection configuration information and the second connection configuration information sent by the source node, or receive the first connection configuration information and the second connection configuration information sent by the target node via the source node, or receive the first connection configuration information sent by the target node via the source node before the terminal device establishes a connection with the target node, and receive the second connection configuration information sent by the target node after the terminal device establishes a connection with the target node.
Specifically, the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node. It should be noted that the terminal device is not limited to receive two pieces of connection configuration information, for example, the terminal device may also receive third connection configuration information, fourth connection configuration information, and the like according to actual requirements.
Each of the first connection configuration information and the second connection configuration information may include configuration information of a cell, configuration information of a higher layer entity (e.g., an L2 entity) corresponding to the cell, and the like. The first connection configuration information may include configuration information used for establishing a connection between the terminal device and the target node and configuration information used for reconfiguring a connection between the terminal device and the source node.
Optionally, the first connection configuration information and the second connection configuration information may be transmitted through the same signaling (e.g., the same RRC message). For example, for the handover procedure, the SCG Change (i.e., SCG Change) or the SCG Addition (i.e., SCG Addition) procedure, the first connection configuration information and the second connection configuration information may be carried by RRC reconfiguration (i.e., rrcreeconfiguration) information. Specifically, the first connection configuration information and the second connection configuration information are transmitted through the same signaling, which can reduce signaling loss and reduce switching delay.
Optionally, the first connection configuration information and the second connection configuration information may also be transmitted through different signaling (e.g., different RRC messages). Specifically, the first connection configuration information and the second connection configuration information are transmitted through different signaling, so that the flexibility of configuration information transmission can be improved.
Step 502, according to the first connection configuration information, simultaneously establishing the connection between the terminal device and the source node and the connection between the terminal device and the target node.
In this embodiment of the present invention, the terminal device may execute the step 502 based on an implicit or explicit indication at the network side. For example, the terminal device may simultaneously establish the connection between the terminal device and the source node and the connection between the terminal device and the target node according to the first connection configuration information when the received connection configuration information is analyzed to include the first connection configuration information and the second connection configuration information, or may simultaneously establish the connection between the terminal device and the source node and the connection between the terminal device and the target node according to the first connection configuration information when the terminal device receives indication information (for example, indication information of DC handover) of mobility management sent by the network side.
It should be noted that, the establishing of the connection between the terminal device and the source node according to the first connection configuration information may include reconfiguring the connection between the terminal device and the source node according to the first connection configuration information.
It should be noted that, after the step 502 is executed, the terminal device maintains connection with the source node and the target node at the same time.
Step 503, under the condition that the triggering condition is met, reconfiguring the connection between the terminal device and the target node according to the second connection configuration information.
Optionally, the trigger condition may include at least one of:
the terminal equipment completes the random access process to the target node;
the terminal equipment receives the indication information sent by the source node;
the terminal equipment receives the indication information sent by the target node;
the terminal equipment sends indication information to the source node after establishing connection with the target node based on the first connection configuration information;
and the terminal equipment sends indication information to the target node after establishing connection with the target node based on the first connection configuration information.
In the embodiment of the present invention, the completion of the random access process to the target node by the terminal device may be a completion of a random access process for establishing a connection between the terminal device and the target node.
The indication information sent by the source node or the indication information sent by the target node is used for indicating the terminal device to reconfigure the connection between the terminal device and the target node based on the second connection configuration information.
In an embodiment, the terminal device may reconfigure the connection between the terminal device and the target node according to the second connection configuration information, when receiving the indication information sent by the source node or the target node.
In another embodiment, the terminal device may send indication information to the source node or the target node after establishing a connection with the target node based on the first connection configuration information, and reconfigure the connection between the terminal device and the target node according to the second connection configuration information.
In practical application, before the terminal device is not connected with the target node, the capabilities of the terminal devices which can be used by the terminal device are reasonably allocated between the source node and the target node, so as to reduce data loss in the mobility process.
It should be noted that, in the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information, the terminal device may trigger a random access procedure, or may not trigger the random access procedure.
It should be noted that, in the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information, the terminal device may perform reset or reestablishment of the L2 entity, or may not perform reset or reestablishment of the L2 entity.
It should be noted that, after the terminal device reconfigures the connection between the terminal device and the target node according to the second connection configuration information, the terminal device may disconnect the connection between the terminal device and the source node and maintain the connection between the terminal device and the target node, or simultaneously maintain the connection between the terminal device and the target node and the connection between the terminal device and the source node.
In the mobility management method of the embodiment of the present invention, the connection between the terminal device and the source node and the connection between the terminal device and the target node are simultaneously established based on the first connection configuration information, so that the interruption delay in the mobility process of the terminal device can be reduced, and in addition, the connection between the terminal device and the target node can be reconfigured based on the second connection configuration information after the mobility process is finished (for example, the switching is finished, the SCG change is finished, or the SCG addition is finished), so that the capability of the terminal device that can be used by the target node after the terminal device is connected to the target node can be increased, and the transmission rate of the connection between the terminal device and the target node can be increased.
Optionally, the method further includes: and prohibiting triggering a random access process in the process of reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
In the embodiment of the present invention, in the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information, the random access process is prohibited from being triggered, so that the reconfiguration efficiency can be improved, and system resources can be saved.
Optionally, the method further includes: and prohibiting an L2 entity from resetting or reestablishing in the process of reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
In this embodiment of the present invention, the L2(Layer 2, second Layer) entity may include at least one of a MAC (Medium Access Control) entity, a RLC (Radio Link Control) entity, a PDCP (Packet Data Convergence Protocol) entity, and an SDAP (Service Data Adaptation Protocol) entity. The L2 entity reset may include L2 entity initialization, and the L2 entity re-establishment may include re-configuration of the L2 entity.
Specifically, in the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information, the L2 entity is prohibited from being reset or reestablished, so that the probability of packet loss can be reduced.
Optionally, after the connection between the terminal device and the target node is reconfigured according to the second connection configuration information, the method further includes:
and disconnecting the terminal equipment from the source node.
In the embodiment of the present invention, after the connection between the terminal device and the target node is reconfigured by using the second connection configuration information, the connection between the terminal device and the source node may be disconnected, which may reduce packet loss caused by poor quality of source connection signals, may also enable the connection between the terminal device and the target node to use more capabilities of the terminal device, and may save power consumption of the terminal device.
The embodiment of the invention also provides a mobility management method which is applied to the network node, wherein the network node is a source node or a target node. Referring to fig. 6, fig. 6 is a flowchart of another mobility management method provided in the embodiment of the present invention, and as shown in fig. 6, the method includes the following steps:
step 601, sending first connection configuration information and second connection configuration information to a terminal device, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node.
In this embodiment of the present invention, the first connection configuration information and the second connection configuration information may both include configuration information of a cell, configuration information of a higher layer entity (e.g., an L2 entity) corresponding to the cell, and the like. The first connection configuration information may include configuration information used for establishing a connection between the terminal device and the target node and configuration information used for reconfiguring a connection between the terminal device and the source node.
Optionally, the first connection configuration information and the second connection configuration information may be transmitted through the same signaling (e.g., the same RRC message). For example, for the handover procedure, the SCG Change (i.e., SCG Change) or the SCG Addition (i.e., SCG Addition) procedure, the first connection configuration information and the second connection configuration information may be carried by RRC reconfiguration (i.e., rrcreeconfiguration) information. Specifically, the first connection configuration information and the second connection configuration information are transmitted through the same signaling, so that the signaling loss can be reduced.
Optionally, the first connection configuration information and the second connection configuration information may also be transmitted through different signaling (e.g., different RRC messages). Specifically, the first connection configuration information and the second connection configuration information are transmitted through different signaling, so that the flexibility of configuration information transmission can be improved.
It should be noted that, in a case that the first connection configuration information and the second connection configuration information are transmitted through the same transmission, when the network node is a source node, the source node may directly send the first connection configuration information and the second connection configuration information to the terminal device; when the network node is a target node, the target node may send the first connection configuration information and the second connection configuration information to the terminal device via the source node. In a case that the first connection configuration information and the second connection configuration information may be transmitted through different signaling, when the network node is a target node, the target node may send the first connection configuration information to the terminal device via the source node, and after the terminal device establishes a connection with the target node, the target node may directly send the second connection configuration information to the terminal device.
The mobility management method provided by the embodiment of the invention sends the first connection configuration information and the second connection configuration information to the terminal equipment, the first connection configuration information is used for the terminal equipment to simultaneously keep connection with a source node and a target node, the second connection configuration information is used for reconfiguring the connection of the terminal device and the target node, so that the terminal device can simultaneously establish a connection of the terminal device with the source node and the target node respectively based on the first connection configuration information, thereby, the interruption delay in the mobility process of the terminal equipment can be reduced, and the connection between the terminal equipment and the target node can be reconfigured based on the second connection configuration information, therefore, the capacity of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node can be increased, and the transmission rate of the connection between the terminal equipment and the target node is improved.
Optionally, the network node is a source node;
before the sending the first connection configuration information and the second connection configuration information to the terminal device, the method further includes:
sending request information of mobility management to a target node, wherein the request information of mobility management comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of terminal equipment with a source node and the target node;
the sending the first connection configuration information and the second connection configuration information to the terminal device includes:
and sending the first connection configuration information and the second connection configuration information from the target node to the terminal equipment.
In this embodiment of the present invention, a source node sends a Request message for mobility management, for example, a Handover Request (i.e., Handover Request) shown in fig. 7, where the Handover Request may carry MCG configuration (i.e., mcgConfiguration) and source node configuration (i.e., sourceConfiguration). The mobility management request information includes first connection management request information for requesting to simultaneously maintain the connection of the terminal device with the source node and the target node.
Optionally, the mobility management request information may include at least one of the following:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
In this embodiment of the present invention, the connection configuration information between the terminal device and the source node is used to establish or maintain a connection between the terminal device and the source node, for example, a source configuration (i.e., a sourceConfiguration). The capability information of the terminal device may include a frequency band combination, for example, the frequency band combination usable by the first connection includes band _1 and band _2, and the frequency band combination usable by the second connection includes band _3 and band _ 4. The current air interface connection configuration information of the terminal device may be, for example, source node configuration (i.e., sourceConfiguration).
Specifically, the source node may receive the first connection configuration information and the second connection configuration information sent by the target node, and may send the received first connection configuration information and second connection configuration information to the terminal device.
Optionally, after the sending the first connection configuration information and the second connection configuration information from the target node to the terminal device, the method further includes:
and reconfiguring the connection between the source node and the terminal equipment according to the first connection configuration information.
In the embodiment of the invention, the source node reconfigures the connection between the source node and the terminal equipment according to the first connection configuration information, and can keep the connection with the terminal equipment, thereby reducing the interruption delay in the mobility process of the terminal equipment.
Optionally, the method further includes:
and under the condition that the terminal equipment reconfigures the connection between the terminal equipment and the target node according to the second connection configuration information, disconnecting the source node from the terminal equipment.
In the embodiment of the present invention, the source node may disconnect the connection between the source node and the terminal device when the terminal device reconfigures the connection between the terminal device and the target node according to the second connection configuration information, so that packet loss caused by an excessive quality difference of a wireless link may be reduced.
Optionally, the network node is a target node;
before the sending the first connection configuration information and the second connection configuration information to the terminal device, the method further includes:
receiving mobility management request information sent by a source node, wherein the mobility management request information comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of terminal equipment with the source node and a target node;
the sending the first connection configuration information and the second connection configuration information to the terminal device includes:
and sending the first connection configuration information and the second connection configuration information to the terminal equipment through the source node.
In this embodiment of the present invention, a source node sends a Request message for mobility management, for example, a Handover Request (i.e., Handover Request) shown in fig. 7, where the Handover Request may carry MCG configuration (i.e., mcgConfiguration) and source node configuration (i.e., sourceConfiguration). The mobility management request information includes first connection management request information for requesting to simultaneously maintain the connection of the terminal device with the source node and the target node.
Specifically, after receiving the mobility management request information, the target node may generate first connection configuration information and second connection configuration information, and send the first connection configuration information and the second connection configuration information to the terminal device via the source node.
It is to be understood that, after sending the first connection configuration information and the second connection configuration information to the terminal device via the source node, the target node may establish a connection with the terminal device according to the first connection configuration information, and after establishing a connection with the terminal device, may reconfigure a connection between the target node and the terminal device according to the second connection configuration information.
Optionally, the first connection management request information includes at least one of the following:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
In this embodiment of the present invention, the connection configuration information between the terminal device and the source node is used to establish or maintain a connection between the terminal device and the source node, for example, a source configuration (i.e., a sourceConfiguration). The capability information of the terminal device may include a frequency band combination, for example, the frequency band combination usable by the first connection includes band _1 and band _2, and the frequency band combination usable by the second connection includes band _3 and band _ 4. The current air interface connection configuration information of the terminal device may be, for example, source node configuration (i.e., sourceConfiguration).
Optionally, the method further includes:
sending indication information to the terminal equipment; or
Receiving indication information sent by the terminal equipment;
the indication information is used for indicating that the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information.
In an embodiment, the network node (i.e., the source node or the target node) may send indication information to the terminal device, so as to instruct the terminal device to reconfigure the connection between the terminal device and the target node according to the second connection configuration information.
In another embodiment, the network node (i.e., the source node or the target node) may receive the indication information sent by the terminal device. For example, the terminal device sends a first connection configuration information (e.g., dcConfiguration configuration) completion message to the source node, instructing the terminal device to execute the second connection configuration information.
The following describes a mobility management method according to an embodiment of the present invention with reference to an example:
step a1, the source node sends the request information of mobility management to the target node.
In this step, the mobility management request information includes connection management information for simultaneously maintaining connection between the UE (i.e., the terminal device) and the source node and the target node, i.e., the first connection management request information.
For example, referring to fig. 7, the source node sends a Handover Request (i.e., Handover Request) to the target node, and the Handover Request may carry an MCG configuration (i.e., mcgConfiguration) and a source node configuration (i.e., sourceConfiguration).
Optionally, the first connection management request information may include at least one of the following:
connection Configuration information of the UE and the source node, for example, MCG Configuration (MCG Configuration), is used to establish or maintain a connection between the UE and the source node;
capability information of the UE that the connection of the UE at the source node can use, for example, a band combination (e.g., band _1 and band _ 2);
capability information of the UE that the UE's connection at the target node can use, for example, band combinations (e.g., band _3 and band _ 4);
the current air interface connection configuration information of the UE, for example, the source node configuration (i.e., sourceConfiguration).
Step a2, the target node generates configuration information of mobility management of the UE according to the request information of mobility management in step a1, and transmits the configuration information to the source node.
In this step, the configuration information of the mobility management of the UE may be RRC reconfiguration (RRCReconfiguration) information. The configuration information of the mobility management may include the first connection configuration information (e.g., DC configuration (i.e., dcConfiguration)) and the second connection configuration information (e.g., target node configuration (targetConfiguration)), where the first connection configuration information is only temporarily used for the UE to simultaneously maintain the connection between the source node and the target node during the mobility procedure, and the second connection configuration information is used for the connection between the UE and the target node after the mobility procedure is completed, that is, the connection between the UE and the target node is reconfigured by using the second connection configuration information after the mobility procedure is completed.
For example, referring to fig. 7, the target node sends a handover request response to the source node, where the handover request response carries RRC reconfiguration (RRCReconfiguration) information, and the RRC reconfiguration (RRCReconfiguration) information includes dcConfiguration and targetConfiguration.
Step a3, the source node transmits the configuration information of the mobility management of the UE received in step a2 to the UE.
Step a4, after receiving the configuration information of the mobility management of the UE, according to the indication information (for example, the indication information to perform DC handover, such as dcConfiguration indication information) in the configuration information of the mobility management of the UE, the UE executes the connection configuration information (that is, the first connection configuration information) used when the source node and the target node are simultaneously maintained to be connected in the configuration information of the mobility management of the UE, so as to simultaneously establish the connection between the UE and the source node and the target node.
Step a5, the UE executes connection configuration information for the target node connection in the configuration information of the mobility management of the UE (i.e. the second connection configuration information, for example, the targetConfiguration, which is used for the connection between the UE and the target node after the mobility procedure is finished).
Optionally, after the UE performs the connection configuration information for the target node connection in the configuration information of the mobility management of the UE, the UE disconnects the connection with the source node and maintains the connection with the target node.
Optionally, the UE does not trigger the random access procedure when performing connection configuration information for target node connection in configuration information of mobility management of the UE.
Optionally, the L2 entity (e.g., MAC, RLC, PDCP, or SDAP, etc.) of the UE is not reset or re-established when the UE performs connection configuration information for target node connection in the configuration information of mobility management of the UE.
The mobility management method provided by the embodiment of the invention can carry out 2 times of configuration on the switching or SCG changing (namely SCG Change) process of the UE through 2 pieces of configuration information of 1 RRC message, thereby realizing that the UE can use all the capabilities of the UE after being converted to the target node. Meanwhile, only 1 RRC message can be used, so that the signaling loss generated by sending a plurality of RRC messages for mobile process configuration is saved.
Referring to fig. 8, fig. 8 is a structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 8, the terminal apparatus 800 includes:
a receiving module 801, configured to receive first connection configuration information and second connection configuration information;
an establishing module 802, configured to establish connections between the terminal device and a source node and between the terminal device and a target node according to the first connection configuration information;
a reconfiguring module 803, configured to reconfigure, according to the second connection configuration information, the connection between the terminal device and the target node when the triggering condition is met.
Optionally, the trigger condition includes at least one of:
the terminal equipment completes the random access process to the target node;
the terminal equipment receives the indication information sent by the source node;
the terminal equipment receives the indication information sent by the target node;
the terminal equipment sends indication information to the source node after establishing connection with the target node based on the first connection configuration information;
and the terminal equipment sends indication information to the target node after establishing connection with the target node based on the first connection configuration information.
Optionally, the terminal device further includes:
and a first prohibiting module, configured to prohibit triggering of a random access procedure in a process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information.
Optionally, the terminal device further includes:
a second prohibiting module, configured to prohibit the L2 entity from being reset or reestablished during the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information.
Optionally, the terminal device further includes:
a disconnecting module, configured to disconnect the connection between the terminal device and the source node after the connection between the terminal device and the target node is reconfigured according to the second connection configuration information.
Optionally, the first connection configuration information and the second connection configuration information are transmitted through the same signaling.
The terminal device 800 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiments of fig. 5 and fig. 7, and is not described here again to avoid repetition.
The terminal device 800 of the embodiment of the present invention includes a receiving module 801, configured to receive first connection configuration information and second connection configuration information; an establishing module 802, configured to establish connections between the terminal device and a source node and between the terminal device and a target node according to the first connection configuration information; a reconfiguring module 803, configured to reconfigure, according to the second connection configuration information, the connection between the terminal device and the target node when the triggering condition is met. The second connection configuration information is used for reconfiguring the connection between the terminal equipment and the target node, so that the capacity of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node can be increased, and the transmission rate of the connection between the terminal equipment and the target node is improved.
Referring to fig. 9, fig. 9 is a structural diagram of a network node according to an embodiment of the present invention. The network node is a source node or a target node. As shown in fig. 9, network node 900 includes:
a first sending module 901, configured to send, to a terminal device, first connection configuration information and second connection configuration information, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node.
Optionally, the network node is a source node;
the network node further comprises:
a second sending module, configured to send mobility management request information to a target node, where the mobility management request information includes first connection management request information, and the first connection management request information is used to request that a terminal device is connected to a source node and the target node at the same time;
the first sending module is specifically configured to:
and sending the first connection configuration information and the second connection configuration information from the target node to the terminal equipment.
Optionally, the network node further includes:
a reconfiguration module, configured to reconfigure, after sending the first connection configuration information and the second connection configuration information from the target node to the terminal device, the connection between the source node and the terminal device according to the first connection configuration information.
Optionally, the network node further includes:
a disconnecting module, configured to disconnect the connection between the source node and the terminal device when the terminal device reconfigures the connection between the terminal device and the target node according to the second connection configuration information.
Optionally, the network node is a target node;
the network node further comprises:
a first receiving module, configured to receive mobility management request information sent by a source node, where the mobility management request information includes first connection management request information, and the first connection management request information is used to request that a terminal device is connected to the source node and a target node at the same time;
the first sending module is specifically configured to:
and sending the first connection configuration information and the second connection configuration information to the terminal equipment through the source node.
Optionally, the first connection management request information includes at least one of the following:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
Optionally, the network node further includes:
a third sending module, configured to send instruction information to the terminal device; or
The second receiving module is used for receiving the indication information sent by the terminal equipment;
the indication information is used for indicating that the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information.
Optionally, the first connection configuration information and the second connection configuration information are transmitted through the same signaling.
The network node 900 provided in the embodiment of the present invention can implement each process implemented by the network node in the method embodiments of fig. 6 and fig. 7, and is not described here again to avoid repetition.
The network node 900 of the embodiment of the present invention, the first sending module 901 is configured to send, to a terminal device, first connection configuration information and second connection configuration information, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node. Therefore, the terminal equipment can simultaneously establish the connection between the terminal equipment and the source node and the connection between the terminal equipment and the target node respectively based on the first connection configuration information, so that the interruption delay in the mobility process of the terminal equipment can be reduced, and the connection between the terminal equipment and the target node can be reconfigured based on the second connection configuration information, so that the capability of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node can be increased, and the transmission rate of the connection between the terminal equipment and the target node can be increased.
Fig. 10 is a block diagram of another terminal device according to an embodiment of the present invention. Referring to fig. 10, the terminal device 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 10 is not intended to be limiting, and that terminal devices may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The radio frequency unit 1001 is configured to receive first connection configuration information and second connection configuration information;
a processor 1010, configured to establish connections between the terminal device and a source node and between the terminal device and a target node according to the first connection configuration information; and under the condition that a triggering condition is met, reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
The embodiment of the invention can increase the capability of the terminal equipment which can be used by the target node after the terminal equipment is connected with the target node because the second connection configuration information is used for reconfiguring the connection between the terminal equipment and the target node, thereby improving the transmission rate of the connection between the terminal equipment and the target node.
Optionally, the trigger condition includes at least one of:
the terminal equipment completes the random access process to the target node;
the terminal equipment receives the indication information sent by the source node;
the terminal equipment receives the indication information sent by the target node;
the terminal equipment sends indication information to the source node after establishing connection with the target node based on the first connection configuration information;
and the terminal equipment sends indication information to the target node after establishing connection with the target node based on the first connection configuration information.
Optionally, the processor 1010 is further configured to:
and prohibiting triggering a random access process in the process of reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
Optionally, the processor 1010 is further configured to:
and prohibiting an L2 entity from resetting or reestablishing in the process of reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information.
Optionally, the processor 1010 is further configured to:
and after the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information, disconnecting the terminal equipment from the source node.
Optionally, the first connection configuration information and the second connection configuration information are transmitted through the same signaling.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 1001 may be used for receiving and sending signals during a message transmission or a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1010; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 1001 may also communicate with a network and other devices through a wireless communication system.
The terminal device provides the user with wireless broadband internet access through the network module 1002, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 1003 may convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output as sound. Also, the audio output unit 1003 can also provide audio output related to a specific function performed by the terminal apparatus 1000 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.
The input unit 1004 is used to receive an audio or video signal. The input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, the Graphics processor 10041 Processing image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1006. The image frames processed by the graphic processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. The microphone 10042 can receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1001 in case of a phone call mode.
Terminal device 1000 can also include at least one sensor 1005, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 10061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 10061 and/or backlight when the terminal device 1000 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.
The display unit 1006 is used to display information input by the user or information provided to the user. The Display unit 1006 may include a Display panel 10061, and the Display panel 10061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 1007 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 10071 (e.g., operations by a user on or near the touch panel 10071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 10071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 10071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 can include other input devices 10072. Specifically, the other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 10071 can be overlaid on the display panel 10061, and when the touch panel 10071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 10061 according to the type of the touch event. Although in fig. 10, the touch panel 10071 and the display panel 10061 are two independent components for implementing the input and output functions of the terminal device, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated to implement the input and output functions of the terminal device, and the implementation is not limited herein.
The interface unit 1008 is an interface for connecting an external device to the terminal apparatus 1000. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1008 can be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within terminal apparatus 1000 or can be used to transmit data between terminal apparatus 1000 and external devices.
The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, and the like), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1009 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 1010 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by operating or executing software programs and/or modules stored in the memory 1009 and calling data stored in the memory 1009, thereby performing overall monitoring of the terminal device. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
Terminal device 1000 can also include a power source 1011 (e.g., a battery) for powering the various components, and preferably, power source 1011 can be logically coupled to processor 1010 through a power management system that provides management of charging, discharging, and power consumption.
In addition, the terminal device 1000 includes some functional modules that are not shown, and are not described herein again.
Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor 1010, a memory 1009, and a computer program stored in the memory 1009 and capable of running on the processor 1010, where the computer program is executed by the processor 1010 to implement each process of the foregoing mobility management method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing mobility management method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Referring to fig. 11, fig. 11 is a structural diagram of another network node provided in an embodiment of the present invention, where the network node may be a source node or a target node. As shown in fig. 11, the network node 1100 includes: a processor 1101, a memory 1102, a bus interface 1103, and a transceiver 1104, wherein the processor 1101, the memory 1102, and the transceiver 1104 are all connected to the bus interface 1103.
In this embodiment of the present invention, the network node 1100 further includes: a computer program stored on the memory 1102 and executable on the processor 1101, the computer program when executed by the processor 1101 performing the steps of:
and sending first connection configuration information and second connection configuration information to terminal equipment, wherein the first connection configuration information is used for the terminal equipment to simultaneously keep connection with a source node and a target node, and the second connection configuration information is used for reconfiguring the connection between the terminal equipment and the target node.
Optionally, the network node is a source node;
the computer program, when executed by the processor 1101, is further adapted to:
before sending first connection configuration information and second connection configuration information to the terminal equipment, sending mobile management request information to a target node, wherein the mobile management request information comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of the terminal equipment with a source node and the target node;
accordingly, the computer program, when executed by the processor 1101, is further configured to:
and sending the first connection configuration information and the second connection configuration information from the target node to the terminal equipment.
Optionally, the computer program, when executed by the processor 1101, is further configured to:
after the first connection configuration information and the second connection configuration information from the target node are sent to the terminal equipment, the connection between the source node and the terminal equipment is reconfigured according to the first connection configuration information.
Optionally, the computer program, when executed by the processor 1101, is further configured to:
and under the condition that the terminal equipment reconfigures the connection between the terminal equipment and the target node according to the second connection configuration information, disconnecting the source node from the terminal equipment.
Optionally, the network node is a target node;
the computer program, when executed by the processor 1101, is further adapted to:
before sending first connection configuration information and second connection configuration information to a terminal device, receiving mobility management request information sent by a source node, wherein the mobility management request information comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of the terminal device with the source node and a target node;
accordingly, the computer program, when executed by the processor 1101, is further configured to:
and sending the first connection configuration information and the second connection configuration information to the terminal equipment through the source node.
Optionally, the first connection management request information includes at least one of the following:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
Optionally, the computer program, when executed by the processor 1101, is further configured to:
sending indication information to the terminal equipment; or
Receiving indication information sent by the terminal equipment;
the indication information is used for indicating that the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information.
Optionally, the first connection configuration information and the second connection configuration information are transmitted through the same signaling.
The embodiment of the present invention further provides a network node, which includes a processor 1101, a memory 1102, and a computer program stored in the memory 1102 and capable of running on the processor 1101, where the computer program is executed by the processor 1101 to implement each process of the foregoing mobility management method embodiment, and can achieve the same technical effect, and for avoiding repetition, details are not repeated here.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing mobility management method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (27)

1. A mobility management method is applied to a terminal device, and comprises the following steps:
receiving first connection configuration information and second connection configuration information;
simultaneously establishing the connection between the terminal equipment and a source node and the connection between the terminal equipment and a target node respectively according to the first connection configuration information;
under the condition that a triggering condition is met, reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information;
forbidding triggering a random access process in the process of reconfiguring the connection between the terminal equipment and the target node according to the second connection configuration information; and/or
Prohibiting an L2 entity from resetting or rebuilding in the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information;
and the second connection configuration information is sent to the terminal equipment by the target node after the terminal equipment establishes connection with the target node.
2. The method of claim 1, wherein the trigger condition comprises at least one of:
the terminal equipment completes the random access process to the target node;
the terminal equipment receives the indication information sent by the source node;
the terminal equipment receives the indication information sent by the target node;
the terminal equipment sends indication information to the source node after establishing connection with the target node based on the first connection configuration information;
and the terminal equipment sends indication information to the target node after establishing connection with the target node based on the first connection configuration information.
3. The method according to claim 1, wherein after the reconfiguring the connection between the terminal device and the target node according to the second connection configuration information, the method further comprises:
and disconnecting the terminal equipment from the source node.
4. The method of claim 1, wherein the first connection configuration information and the second connection configuration information are transmitted through a same signaling.
5. A mobility management method is applied to a network node, wherein the network node is a source node or a target node, and the method comprises the following steps:
sending first connection configuration information and second connection configuration information to a terminal device, wherein the first connection configuration information is used for the terminal device to simultaneously keep connection with a source node and a target node, and the second connection configuration information is used for reconfiguring the connection between the terminal device and the target node;
wherein, the second connection configuration information is used for prohibiting triggering a random access process by the terminal device in a process of reconfiguring the connection between the terminal device and the target node;
and/or
The second connection configuration information is used for prohibiting, by the terminal device, an L2 entity from being reset or reestablished in a process of reconfiguring the connection between the terminal device and the target node;
and the second connection configuration information is sent to the terminal equipment by the target node after the terminal equipment establishes connection with the target node.
6. The method of claim 5, wherein the network node is a source node;
before the sending the first connection configuration information and the second connection configuration information to the terminal device, the method further includes:
sending request information of mobility management to a target node, wherein the request information of mobility management comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of terminal equipment with a source node and the target node;
the sending the first connection configuration information and the second connection configuration information to the terminal device includes:
and sending the first connection configuration information and the second connection configuration information from the target node to the terminal equipment.
7. The method of claim 6, wherein after sending the first connection configuration information and the second connection configuration information from the target node to the terminal device, the method further comprises:
and reconfiguring the connection between the source node and the terminal equipment according to the first connection configuration information.
8. The method of claim 6, further comprising:
and under the condition that the terminal equipment reconfigures the connection between the terminal equipment and the target node according to the second connection configuration information, disconnecting the source node from the terminal equipment.
9. The method of claim 5, wherein the network node is a target node;
before the sending the first connection configuration information and the second connection configuration information to the terminal device, the method further includes:
receiving mobility management request information sent by a source node, wherein the mobility management request information comprises first connection management request information, and the first connection management request information is used for requesting to simultaneously maintain the connection of terminal equipment with the source node and a target node;
the sending the first connection configuration information and the second connection configuration information to the terminal device includes:
and sending the first connection configuration information and the second connection configuration information to the terminal equipment through the source node.
10. The method according to claim 6 or 9, wherein the first connection management request information comprises at least one of:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
11. The method of claim 5, further comprising:
sending indication information to the terminal equipment; or
Receiving indication information sent by the terminal equipment;
the indication information is used for indicating that the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information.
12. The method of claim 5, wherein the first connection configuration information and the second connection configuration information are transmitted through a same signaling.
13. A terminal device, comprising:
a receiving module, configured to receive first connection configuration information and second connection configuration information;
the establishing module is used for simultaneously establishing the connection between the terminal equipment and the source node and the connection between the terminal equipment and the target node according to the first connection configuration information;
a reconfiguration module, configured to reconfigure, according to the second connection configuration information, the connection between the terminal device and the target node when a trigger condition is met;
the terminal device further includes:
a first prohibiting module, configured to prohibit triggering of a random access procedure in a process of reconfiguring a connection between the terminal device and the target node according to the second connection configuration information; and/or
A second prohibiting module, configured to prohibit the L2 entity from being reset or reestablished during the process of reconfiguring the connection between the terminal device and the target node according to the second connection configuration information;
and the second connection configuration information is sent to the terminal equipment by the target node after the terminal equipment establishes connection with the target node.
14. The terminal device of claim 13, wherein the trigger condition comprises at least one of:
the terminal equipment completes the random access process to the target node;
the terminal equipment receives the indication information sent by the source node;
the terminal equipment receives the indication information sent by the target node;
the terminal equipment sends indication information to the source node after establishing connection with the target node based on the first connection configuration information;
and the terminal equipment sends indication information to the target node after establishing connection with the target node based on the first connection configuration information.
15. The terminal device according to claim 13, wherein the terminal device further comprises:
a disconnecting module, configured to disconnect the connection between the terminal device and the source node after the connection between the terminal device and the target node is reconfigured according to the second connection configuration information.
16. The terminal device according to claim 13, wherein the first connection configuration information and the second connection configuration information are transmitted by the same signaling.
17. A network node, wherein the network node is a source node or a target node, comprising:
a first sending module, configured to send first connection configuration information and second connection configuration information to a terminal device, where the first connection configuration information is used for the terminal device to simultaneously maintain connection with a source node and a target node, and the second connection configuration information is used for reconfiguring connection between the terminal device and the target node;
wherein, the second connection configuration information is used for prohibiting triggering a random access process by the terminal device in a process of reconfiguring the connection between the terminal device and the target node;
and/or
The second connection configuration information is used for prohibiting, by the terminal device, an L2 entity from being reset or reestablished in a process of reconfiguring the connection between the terminal device and the target node;
and the second connection configuration information is sent to the terminal equipment by the target node after the terminal equipment establishes connection with the target node.
18. The network node of claim 17, wherein the network node is a source node;
the network node further comprises:
a second sending module, configured to send mobility management request information to a target node, where the mobility management request information includes first connection management request information, and the first connection management request information is used to request that a terminal device is connected to a source node and the target node at the same time;
the first sending module is specifically configured to:
and sending the first connection configuration information and the second connection configuration information from the target node to the terminal equipment.
19. The network node of claim 18, wherein the network node further comprises:
a reconfiguration module, configured to reconfigure, after sending the first connection configuration information and the second connection configuration information from the target node to the terminal device, the connection between the source node and the terminal device according to the first connection configuration information.
20. The network node of claim 18, wherein the network node further comprises:
a disconnecting module, configured to disconnect the connection between the source node and the terminal device when the terminal device reconfigures the connection between the terminal device and the target node according to the second connection configuration information.
21. The network node of claim 17, wherein the network node is a target node;
the network node further comprises:
a first receiving module, configured to receive mobility management request information sent by a source node, where the mobility management request information includes first connection management request information, and the first connection management request information is used to request that a terminal device is connected to the source node and a target node at the same time;
the first sending module is specifically configured to:
and sending the first connection configuration information and the second connection configuration information to the terminal equipment through the source node.
22. The network node according to claim 18 or 21, wherein the first connection management request information comprises at least one of:
connection configuration information of the terminal device and the source node;
the capability information of the terminal equipment can be used by a first connection, wherein the first connection is the connection between the terminal equipment and the source node;
the capability information of the terminal equipment can be used by a second connection, wherein the second connection is the connection between the terminal equipment and the target node;
and the current air interface connection configuration information of the terminal equipment.
23. The network node of claim 17, wherein the network node further comprises:
a third sending module, configured to send instruction information to the terminal device; or
The second receiving module is used for receiving the indication information sent by the terminal equipment;
the indication information is used for indicating that the connection between the terminal equipment and the target node is reconfigured according to the second connection configuration information.
24. The network node according to claim 17, wherein the first connection configuration information and the second connection configuration information are transmitted by the same signaling.
25. A terminal device, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the mobility management method according to any one of claims 1 to 4.
26. A network node, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the mobility management method according to any of claims 5 to 12.
27. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the mobility management method according to one of the claims 1 to 4, or carries out the steps of the mobility management method according to one of the claims 5 to 12.
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