CN107426720B - Cross-node mobile context transmission method, UE and network node - Google Patents
Cross-node mobile context transmission method, UE and network node Download PDFInfo
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- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The embodiment of the invention discloses a cross-node mobile context transmission method, user equipment and a network node, wherein the method comprises the following steps: when User Equipment (UE) in a service non-activated state moves to a target node, acquiring information of the target node through system information; the UE sends a mobile trigger message to a target node so that the target node acquires context information; and after receiving the confirmation message sent by the target node, the UE updates the access node.
Description
Technical Field
The present invention relates to a cross-node context information acquisition technology, and in particular, to a cross-node mobile context transmission method, UE, and network node.
Background
Most of the internet of things services are still deployed on the traditional mobile network, and the increase speed of the services is restricted by factors such as power consumption, connection number limitation, cost and the like. In the current Long Term Evolution (LTE) system, because the system is based on the S1/EPS architecture, in order to enable the UE to receive and send user plane data, connection needs to be established and removed, and for small packet transmission, a large amount of signaling load may exist at the air interface and the S1 interface.
Operators have attempted to provide low cost, low power consumption internet of things connectivity by improving existing networks in recent years. At present, a narrowband Internet Of Things (NB-IOT) function is introduced into the R13 version, one Of the most key technologies in the NB-IOT function is to connect and suspend wireless resources when no data is transmitted, and recover the wireless resources when data is transmitted, so that compared with the method that a terminal is converted from an idle state to a connected state, the signaling interaction is reduced.
Since the current suspension flow in the NB-IOT function needs to release all S1 bearers, it means to restore to a connected state, and it also needs to spend a certain amount of Core Network (CN) side signaling to restore S1 bearers, which still has a large signaling load overhead for packets with a small burst period.
For Enhanced Mobile broadband (EMBB), in 5G, it is proposed that connection establishment for switching from non-received data, such as idle state, to received data does not exceed 10ms, time consumption in each phase of current connection establishment is analyzed, time consumed for acquiring UE context is large, and meanwhile, for EMBB, there are applications in which a plurality of short or long burst data and an intermediate waiting period is long, and therefore, EMBB and internet of things both need a new state different from the current idle state and connection state, and both have mobility requirements.
Organizations that are studying future communication developments are then proposing a new state, called the traffic inactivity state. The service inactive state is characterized in that a node responsible for context management stores relevant context information, when data is transmitted, the data transmission is carried out according to the recovery of the stored relevant context information, and meanwhile, the terminal UE in the state has mobility. The UE switched into the service inactive state moves among a plurality of nodes responsible for context management, when service transmission occurs, recovery is needed, context information related to the UE is recovered, and a channel from a CN to a Radio Access Network (RAN) to the UE is connected. Since the UE moves to the management range of the new context management node, and the new node has no relevant context information, the UE cannot recover and cannot support data transmission.
At present, no definite method exists for transferring context information when a UE is in a service inactive state and moves between cross context management nodes.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a cross-node mobile context transmission method, a UE, and a network node.
In the cross-node mobile context transmission method provided by the embodiment of the present invention, when a user equipment UE in a service inactive state moves to a target node, a mobile trigger message is sent to the target node, so that the target node obtains context information;
the target node is used for sending a request message of context information to an intermediate node before the UE moves to the target node, so that the request message is forwarded to a source node through the intermediate node, and after receiving the context information which is forwarded by the intermediate node and is searched by the source node and acquired and is related to the UE, a confirmation message is sent to the UE; the source node and the target node are both context management nodes;
and after receiving the confirmation message, the UE switches to the management range of the target node.
In the embodiment of the invention, the UE acquires the information of the target node through the system message.
In the embodiment of the invention, the UE updates the access node after receiving the confirmation message sent by the target node.
In the embodiment of the present invention, the sending, by the UE, the mobile trigger message to the target node includes:
and when the UE determines that the target node and the source node of the UE do not have the adjacency relation, the UE sends a mobile trigger message to the target node.
In this embodiment of the present invention, the mobile trigger message includes: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
In this embodiment of the present invention, the system message includes at least one of the following information of the target node: node identification, neighbor node list.
In an embodiment of the present invention, the context information at least includes one of the following information: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
A method of context transfer across node mobility, the method comprising:
after receiving a mobile trigger message sent by User Equipment (UE), a target node acquires context information related to the UE based on node information contained in the mobile trigger message;
the obtaining context information related to the UE based on the node information included in the mobility trigger message includes: the target node acquires information of an intermediate node before the UE moves to the target node, wherein the information is contained in the mobile trigger message, and sends a request message of context information to the intermediate node; receiving context information related to the UE, which is acquired by the intermediate node from a source node; sending a confirmation message to the UE to trigger the UE to switch to the management range of the target node; wherein the source node and the target node are both context management nodes.
In the embodiment of the invention, the node sends a confirmation message to the UE to trigger the UE to update the node.
In this embodiment of the present invention, the obtaining context information related to the UE based on the node information included in the mobile trigger message includes:
the target node acquires information of an intermediate node before the UE moves to the target node, wherein the information is contained in the mobile trigger message, and sends a request message of context information to the intermediate node; the request message comprises source node information;
and receiving the context information which is acquired by the intermediate node from a source node and is related to the UE.
In this embodiment of the present invention, after the target node acquires the context information related to the UE, the method further includes:
after the source node sends the context information related to the UE, deleting the local context information related to the UE;
or after the source node sends the context information related to the UE, deleting the local context information related to the UE after a set time length is reached.
In this embodiment of the present invention, the context information related to the UE at least includes one of the following information:
context information of the UE, and context information of a bearer between a Radio Access Network (RAN) and a core network.
A user equipment, UE, the UE being in a traffic inactive state, the UE comprising: a sending unit, configured to send a mobility trigger message to a target node when the user equipment moves to the target node, so that the target node obtains context information; the target node is configured to send a request message for context information to an intermediate node before the UE moves to the target node, so as to forward the request message to a source node through the intermediate node, and send a confirmation message to the UE after receiving context information related to the UE, which is forwarded by the intermediate node and is obtained by searching by the source node, to trigger the UE to switch to a management range of the target node; the source node and the target node are both context management nodes.
In this embodiment of the present invention, the ue further includes:
and the learning unit is used for learning the information of the target node through the system message.
In this embodiment of the present invention, the user equipment further includes:
and the updating unit is used for updating the access node after receiving the confirmation message sent by the target node.
In this embodiment of the present invention, the user equipment further includes:
a determining unit, configured to determine whether the target node of the UE and the source node of the UE have an adjacency relationship, and trigger the sending unit to send a mobile trigger message to the target node when the target node and the source node of the UE do not have an adjacency relationship.
In this embodiment of the present invention, the mobile trigger message includes: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
In this embodiment of the present invention, the system message includes at least one of the following information of the target node: node identification, neighbor node list.
In this embodiment of the present invention, the context information at least includes one of the following information: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
A network node, the network node comprising: receiving unit, acquisition unit, sending unit, wherein:
a receiving unit, configured to receive a mobile trigger message of a user equipment UE;
an obtaining unit, configured to obtain context information related to the UE based on node information included in the mobility trigger message;
the acquiring unit comprises an acquiring subunit, a sending subunit and a receiving subunit, wherein:
an acquiring subunit, configured to acquire information of an intermediate node before the UE moves to the target node, where the information is included in the mobile trigger message; a sending subunit, configured to send a request message for context information to the intermediate node; the request message comprises source node information; a receiving subunit, configured to receive context information related to the UE, acquired by the intermediate node from a source node; the source node and the target node are both context management nodes;
the sending unit is configured to send a confirmation message to the UE to trigger the UE to switch to the management range of the target node.
In this embodiment of the present invention, the network node further includes:
a sending unit, configured to send an acknowledgement message to the UE to trigger the UE to update the node.
In an embodiment of the present invention, the obtaining unit includes: an acquisition subunit, a sending subunit, and a receiving subunit, wherein:
an obtaining subunit, configured to obtain information, which is included in the mobile trigger message, of an intermediate node before the UE moves to the target node;
a sending subunit, configured to send a request message for context information to the intermediate node; the request message contains source node information;
a receiving subunit, configured to receive context information related to the UE, which is acquired by the intermediate node from a source node.
In this embodiment of the present invention, the context information related to the UE at least includes one of the following information:
context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
According to the cross-node mobile context transmission method, the UE and the network node, when the UE in a service non-activated state moves to a target node, the information of the target node is obtained through system information, so that a mobile trigger message is sent to the target node, the target node obtains context information related to the UE based on the mobile trigger message, and sends a confirmation message to the UE; and the UE accesses the target node after receiving the confirmation message sent by the target node. By the technical scheme of the embodiment of the invention, the defect that the UE accessed node can not acquire the context information related to the UE when the UE moves across the context management node can be avoided, and the context information can be accurately transmitted because the related information comprises the information of the related node, thereby effectively reducing unnecessary information interaction, greatly reducing the system load and meeting the mobility requirement of the UE in a service non-activated state.
Drawings
Fig. 1 is a flowchart of a cross-node mobile context transfer method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a cross-node mobile context transfer method according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a UE cross-node mobility procedure in a service inactive state according to an embodiment of the present invention;
FIG. 4 is a flow diagram of context transfer between nodes according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network node according to an embodiment of the present invention.
Detailed Description
So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
Fig. 1 is a flowchart of a cross-node mobile context transfer method according to a first embodiment of the present invention, and as shown in fig. 1, the cross-node mobile context transfer method according to the present invention includes the following processing steps:
and step 101, when the UE moves to a target node, acquiring the information of the target node through system information.
In the embodiment of the invention, the UE is in a service non-activated state. The system message includes at least one of the following information of the target node: node identification, neighbor node list.
102, UE sends a mobile trigger message to a target node to enable the target node to acquire context information.
In this embodiment of the present invention, the mobile trigger message includes: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
The purpose of the UE sending the mobile trigger message to the target node is to trigger the target node to obtain the context information from the source node accessed by the UE.
The context information includes at least one of: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
Specifically, when the UE in the service inactive state moves to the target node, the UE obtains information of the target node by reading the system message, and decides whether to send a mobile trigger message to the target node. And if the target node and the source node accessed by the UE before are determined not to have the adjacency relation, sending a mobile trigger message to the target node, otherwise, not sending the mobile trigger message to the target node.
The target node acquires the context information related to the UE through the source node and sends a confirmation message to the UE so that the UE updates the source node.
And 103, after receiving the confirmation message sent by the target node, the UE updates the access node.
In the embodiment of the invention, after the UE receives the confirmation message sent by the target node, the UE is switched from the source node to the target node.
In the embodiment of the invention, the source node and the target node are both nodes responsible for context information management. The source node and the target node are for the UE, the source node is a node that maintains the UE context information, and the target node is a home node to which the UE moves to manage the scope.
Fig. 2 is a flowchart of a cross-node mobile context transfer method according to a second embodiment of the present invention, and as shown in fig. 2, the cross-node mobile context transfer method according to the second embodiment of the present invention includes the following processing steps:
In the embodiment of the invention, the UE is in a service non-activated state.
The mobile trigger message comprises: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
The purpose of the UE sending the mobile trigger message to the target node is to trigger the target node to obtain the context information from the source node accessed by the UE.
The context information related to the UE includes at least one of: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
Specifically, when the UE in the service inactive state moves to the target node, the UE obtains information of the target node by reading the system message, and decides whether to send a mobile trigger message to the target node. And if the target node and the source node accessed by the UE before are determined not to have the adjacency relation, sending a mobile trigger message to the target node, otherwise, not sending the mobile trigger message to the target node.
The target node acquires the context information related to the UE through the source node and sends a confirmation message to the UE so that the UE updates the source node. Specifically, the target node acquires information of an intermediate node before the UE moves to the target node, which is included in the movement trigger message, and sends a request message of context information to the intermediate node; the request message contains source node information; and receiving the context information which is acquired by the intermediate node from a source node and is related to the UE.
After the source node sends the context information related to the UE, deleting the local context information related to the UE; or after the source node sends the context information related to the UE, deleting the local context information related to the UE after a set time length is reached.
The essence of the technical solution of the cross-node mobile context transfer method according to the embodiment of the present invention is further elaborated by specific examples below.
Fig. 3 is a flowchart of a cross-node UE mobility procedure in a service-inactive state according to an embodiment of the present invention, and as shown in fig. 3, the cross-node UE mobility procedure in the service-inactive state includes the following steps:
s302, the UE moves to the management range of the target node, receives the system message through the target node, and obtains the target node information through the node information in the system message and the like, wherein the target node information comprises a target node identifier and adjacent node information.
S304, the UE judges whether a mobile trigger message needs to be sent to the target node, if the target node and the source node have no adjacency relation, the mobile trigger message needs to be sent to the target node;
s306, the UE sends a mobile trigger message to the target node, wherein the mobile trigger message contains source node information (such as a source node identifier), and optionally, the mobile trigger message also contains previous node information of the target node or an information list of passed nodes;
s308, the target node acquires the context information through the source node accessed by the UE.
S310, the target node sends a confirmation message to the UE.
S312, the UE updates the source node and updates the target node into new node information.
Fig. 3 is a flow chart of context transfer between nodes according to an embodiment of the present invention.
S302, a target node acquires information of a node before UE enters the node, and sends a context information request to the intermediate node, wherein the request information comprises source node information and UE information (such as UE identification);
s304, the intermediate node sends the context request message to the source node;
s306, the source node searches the context information through the UE identification and sends the context information to the intermediate node;
s308, the intermediate node forwards the context information to the target node.
S310, after the target node acquires the context information related to the UE through the intermediate node, the target node sends a confirmation message to the UE.
S312, after receiving the confirmation message sent by the target node, the UE updates the source node, that is, switches from the source node to the target node.
Fig. 4 is a flowchart of context transfer between nodes according to an embodiment of the present invention, as shown in fig. 4.
S402, after receiving the mobile trigger message sent by the UE, the target node sends a request message of context information to the intermediate node through the source node information carried in the mobile trigger message or the node list information passed by the UE. The request message carries the information of the active node, the identification information of the UE and other related information.
S404, the intermediate node forwards the request message of the context information to the source node.
S406, the source node receives the context request message and sends the context information to the intermediate node through the context information response message;
s406, the intermediate node forwards the context information response message to the target node.
And the source node deletes the context information related to the UE. If the source node and the core network have the previous load bearing, the deletion is also carried out. Specifically, after the source node sends the context information related to the UE, the local context information related to the UE is directly deleted; or after the source node sends the context information related to the UE, the local context information related to the UE is deleted after a set time length is reached.
Fig. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, and as shown in fig. 5, the user equipment according to the embodiment of the present invention is in a service inactive state, where the user equipment includes:
a sending unit 51, configured to send a mobility trigger message to a target node when the ue moves to the target node, so that the target node obtains context information;
the user equipment further comprises:
and a learning unit 50, configured to learn information of the target node through a system message.
The user equipment further comprises:
a receiving unit 52, configured to receive a confirmation message sent by the target node, and trigger the updating unit;
an updating unit 53, configured to perform an update of the access node.
Based on the user equipment shown in fig. 5, the user equipment according to the embodiment of the present invention may further include:
a determining unit (not shown in fig. 5), configured to determine whether the target node of the UE and the source node of the UE have an adjacency relationship, and trigger the sending unit to send a mobility trigger message to the target node when the target node and the source node of the UE do not have an adjacency relationship.
In this embodiment of the present invention, the mobile trigger message includes: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
In the embodiment of the present invention, the system message includes at least one of the following information of the target node: node identification, neighbor node list.
In this embodiment of the present invention, the context information at least includes one of the following information: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
Those skilled in the art will appreciate that the functions implemented by the units in the user equipment shown in fig. 5 can be understood by referring to the related description of the embodiments of the cross-node mobile context transfer method. The receiving unit and the transmitting unit may be implemented by corresponding antenna systems. The learning unit and the updating unit can be formed by a microprocessor, a large programmable array FPGA or corresponding chips.
Fig. 6 is a schematic structural diagram of a network node according to an embodiment of the present invention, and as shown in fig. 6, the network node according to the embodiment of the present invention includes: a receiving unit 60, an obtaining unit 61 and a sending unit 62, wherein:
a receiving unit 60, configured to receive a mobility trigger message of a user equipment UE;
an obtaining unit 61, configured to obtain context information related to the UE based on node information included in the mobility trigger message;
a sending unit 62, configured to send an acknowledgement message to the UE to trigger the UE to update the node.
In this embodiment of the present invention, the obtaining unit 61 includes: an acquisition subunit (not shown in fig. 6), a transmission subunit (not shown in fig. 6), and a reception subunit (not shown in fig. 6), wherein:
an obtaining subunit, configured to obtain information, which is included in the mobile trigger message, of an intermediate node before the UE moves to the target node;
a sending subunit, configured to send a request message for context information to the intermediate node; the request message comprises source node information;
a receiving subunit, configured to receive context information related to the UE, which is acquired by the intermediate node from a source node.
In this embodiment of the present invention, the context information related to the UE at least includes one of the following information:
context information of the UE, and context information of a bearer between a Radio Access Network (RAN) and a core network.
On the basis of the network node shown in fig. 6, the network node according to the embodiment of the present invention may further include a deleting unit, configured to delete the local context information related to the UE after sending the context information related to the UE to another network node; or after sending the context information related to the UE, deleting the local context information related to the UE after a set time length is reached.
Those skilled in the art will appreciate that the functions performed by the elements of the network node shown in fig. 6 may be understood by reference to the foregoing description of various embodiments of the cross-node mobile context transfer method. The receiving unit and the transmitting unit may be implemented by corresponding antenna systems. The acquisition unit can be composed of a microprocessor, a large programmable array FPGA or a corresponding chip.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the several embodiments provided in the present invention, it should be understood that the disclosed method and intelligent UE may be implemented in other manners. The above-described UE embodiments are only illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the UE or the unit may be electrical, mechanical or other.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (23)
1. A method for context transfer across node mobility, the method comprising:
when User Equipment (UE) in a service non-activated state moves to a target node, sending a movement trigger message to the target node so as to enable the target node to acquire context information;
the target node is used for sending a request message of context information to an intermediate node before the UE moves to the target node, so that the request message is forwarded to a source node through the intermediate node, and after receiving context information which is forwarded by the intermediate node and is searched and acquired by the source node and is related to the UE, a confirmation message is sent to the UE; the source node and the target node are both context management nodes;
and after receiving the confirmation message, the UE switches to the management range of the target node.
2. The context transfer method of claim 1, wherein the UE learns the information of the target node through a system message.
3. The context transfer method of claim 1, wherein the UE updates the access node after receiving the acknowledgement message sent by the target node.
4. The method of claim 1, wherein the UE sends a mobility trigger message to the target node, and wherein the method comprises:
and when the UE determines that the target node and the source node of the UE do not have the adjacency relation, the UE sends a mobile trigger message to the target node.
5. The method of claim 4, wherein the mobility trigger message comprises: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
6. The method of claim 2, wherein the system message includes at least one of the following information of the target node: node identification, neighbor node list.
7. The method of claim 1, wherein the context information comprises at least one of the following information: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
8. A method for context transfer across node mobility, the method comprising:
after receiving a mobile trigger message sent by User Equipment (UE), a target node acquires context information related to the UE based on node information contained in the mobile trigger message;
the obtaining context information related to the UE based on the node information included in the mobility trigger message includes: the target node acquires information of an intermediate node before the UE moves to the target node, wherein the information is contained in the mobile trigger message, and sends a request message of context information to the intermediate node; receiving context information related to the UE, which is acquired by the intermediate node from a source node; sending a confirmation message to the UE to trigger the UE to switch to the management range of the target node; wherein the source node and the target node are both context management nodes.
9. The context transfer method of claim 8, wherein the acknowledgement message is further used to trigger node update by the UE.
10. The method of claim 8, wherein the request message includes source node information.
11. The method for context transfer across node mobility according to any of claims 8 to 9, wherein after the target node acquires the context information related to the UE, the method further comprises:
after the source node sends the context information related to the UE, deleting the local context information related to the UE;
or after the source node sends the context information related to the UE, deleting the local context information related to the UE after a set time length is reached.
12. The method of any of claims 8 to 9, wherein the context information related to the UE comprises at least one of the following information:
context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
13. A user equipment UE, the UE being in a service inactive state, the UE comprising:
a sending unit, configured to send a mobility trigger message to a target node when the user equipment moves to the target node, so that the target node obtains context information; the target node is configured to send a request message of context information to an intermediate node before the UE moves to the target node, so as to forward the request message to a source node through the intermediate node, and send a confirmation message to the UE after receiving context information related to the UE, which is forwarded by the intermediate node and is obtained by the source node through a search, so as to trigger the UE to switch to a management range of the target node; the source node and the target node are both context management nodes.
14. The user equipment of claim 13, wherein the user equipment further comprises:
and the learning unit is used for learning the information of the target node through the system message.
15. The UE of claim 13, further comprising:
and the updating unit is used for updating the access node after receiving the confirmation message sent by the target node.
16. The user equipment of claim 13, wherein the user equipment further comprises:
a determining unit, configured to determine whether the target node of the UE and the source node of the UE have an adjacency relationship, and trigger the sending unit to send a mobile trigger message to the target node when the target node and the source node of the UE do not have an adjacency relationship.
17. The UE of claim 16, wherein the mobility trigger message comprises: source node information; or,
source node information and node information of a previous time when the UE moved to the target node; or,
source node information and a list of information that the UE passes through the node.
18. The UE of claim 14, wherein the system message includes at least one of the following information for the target node: node identification, neighbor node list.
19. The UE of claim 13, wherein the context information comprises at least one of: context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
20. A network node, characterized in that the network node comprises: receiving unit, acquisition unit, sending unit, wherein:
a receiving unit, configured to receive a mobile trigger message of a user equipment UE;
an obtaining unit, configured to obtain context information related to the UE based on node information included in the mobility trigger message; the acquiring unit comprises an acquiring subunit, a sending subunit and a receiving subunit, wherein:
an obtaining subunit, configured to obtain information of an intermediate node before the UE moves to the target node, where the information is included in the mobile trigger message; a sending subunit, configured to send a request message for context information to the intermediate node; the request message contains source node information; a receiving subunit, configured to receive context information related to the UE, acquired by the intermediate node from a source node; the source node and the target node are both context management nodes;
the sending unit is configured to send a confirmation message to the UE to trigger the UE to switch to the management range of the target node.
21. The network node of claim 20, wherein the acknowledgement message is further configured to trigger node update by the UE.
22. The network node of claim 21, wherein the request message includes source node information.
23. The network node according to any of claims 20 to 22, wherein the context information related to the UE comprises at least one of:
context information of the UE, context information of a bearer between a Radio Access Network (RAN) and a core network.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043711A (en) * | 2006-03-22 | 2007-09-26 | 华为技术有限公司 | Method and system for realizing resource consistency process in wireless communication system |
| CN101043714A (en) * | 2006-03-21 | 2007-09-26 | 华为技术有限公司 | Method and system for realizing mobility management of user equipment |
| CN102143539A (en) * | 2010-02-02 | 2011-08-03 | 中兴通讯股份有限公司 | Method and system for acquiring context of terminal |
| CN102348191A (en) * | 2010-08-06 | 2012-02-08 | 中国移动通信集团公司 | Context acquisition method and equipment for user equipment (UE) |
| CN102802220A (en) * | 2011-05-25 | 2012-11-28 | 华为技术有限公司 | Handover method and base station |
-
2016
- 2016-05-23 CN CN201610343907.7A patent/CN107426720B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043714A (en) * | 2006-03-21 | 2007-09-26 | 华为技术有限公司 | Method and system for realizing mobility management of user equipment |
| CN101043711A (en) * | 2006-03-22 | 2007-09-26 | 华为技术有限公司 | Method and system for realizing resource consistency process in wireless communication system |
| CN102143539A (en) * | 2010-02-02 | 2011-08-03 | 中兴通讯股份有限公司 | Method and system for acquiring context of terminal |
| CN102348191A (en) * | 2010-08-06 | 2012-02-08 | 中国移动通信集团公司 | Context acquisition method and equipment for user equipment (UE) |
| CN102802220A (en) * | 2011-05-25 | 2012-11-28 | 华为技术有限公司 | Handover method and base station |
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