CN113316200B - Condition synchronous reconfiguration method and device - Google Patents

Condition synchronous reconfiguration method and device Download PDF

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Publication number
CN113316200B
CN113316200B CN202010121448.4A CN202010121448A CN113316200B CN 113316200 B CN113316200 B CN 113316200B CN 202010121448 A CN202010121448 A CN 202010121448A CN 113316200 B CN113316200 B CN 113316200B
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base station
message
target terminal
reconfiguration
modification
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CN113316200A (en
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王睿炜
张大钧
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Abstract

The application provides a condition synchronization reconfiguration method and device. The method comprises the following steps: the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station; after receiving a handover request success response message sent by the second base station according to the handover request message, the first base station sends a Radio Resource Control (RRC) connection reconfiguration message to the target terminal; if the first base station fails to successfully notify the target terminal to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, sending a synchronization reconfiguration modification failure notification message to the second base station to enable the second base station to recover to use the condition synchronization reconfiguration information of the target terminal before modification, otherwise, sending a synchronization reconfiguration modification success notification message to the second base station to enable the second base station to use the modified condition synchronization reconfiguration information of the target terminal.

Description

Condition synchronous reconfiguration method and device
Technical Field
The application relates to the field of Internet of things, in particular to a condition synchronization reconfiguration method and device.
Background
The New radio (New Ratio, NR) R16 protocol introduces a conditional synchronization reconfiguration mechanism, which allows the network side to configure resources of multiple target cells to the terminal in one conditional synchronization reconfiguration process, and the terminal saves the configuration in the conditional synchronization reconfiguration command, and initiates a synchronization reconfiguration procedure in the target cell until the condition configured in the synchronization reconfiguration command is satisfied. In the process of configuring the conditional synchronous reconfiguration of the terminal by the network until the conditional synchronous reconfiguration trigger condition is met, the network can modify the conditional synchronous reconfiguration information of the terminal according to the actual situation, including adding/deleting candidate cells, modifying the configuration of the candidate cells, and the like.
When a source cell sends a switching request for requesting to modify the content of the conditional synchronous reconfiguration to a target cell, the target cell replies a switching request response, and if the source cell cannot inform the terminal of modifying the content of the conditional synchronous reconfiguration for some reason at the moment, the source cell cannot inform the target cell of the failure of the parameter modification. At this time, the target cell may have applied a new configuration, the terminal does not receive the parameter modification notification, and the old configuration is still used, which may result in abnormal communication failure due to inconsistency between the terminal and the target cell configuration.
Disclosure of Invention
The embodiment of the application provides a method and a device for conditional synchronous reconfiguration, so as to keep the conditional synchronous reconfiguration information of a terminal and a network side consistent.
In a first aspect, an embodiment of the present application provides a conditional synchronization reconfiguration method, including:
the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station;
after receiving a handover request success response message sent by the second base station according to the handover request message, the first base station sends a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the handover request success response message, wherein the handover request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
and if the first base station fails to successfully inform the target terminal of modifying the conditional synchronous reconfiguration information according to the RRC connection reconfiguration message, sending a synchronous reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronous reconfiguration information of the target terminal before modification, wherein before sending the synchronous reconfiguration modification failure notification message to the second base station, a switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal is not sent again.
Optionally, the method further comprises: if the first base station successfully informs the target terminal of modifying the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, after receiving the RRC connection reconfiguration completion message sent by the target terminal, sending a synchronization reconfiguration modification success notification message to the second base station, so that the second base station uses the modified condition synchronization reconfiguration information of the target terminal; and the RRC connection reconfiguration complete message is sent by the target terminal after the modification of the conditional synchronization reconfiguration information is completed according to the RRC connection reconfiguration message, and the switching request message for requesting the modification of the conditional synchronization reconfiguration information of the target terminal is not sent again before the synchronization reconfiguration modification success notification message is sent to the second base station.
Optionally, after receiving the handover request success response message sent by the second base station according to the handover request message, the first base station sends an RRC connection reconfiguration message to the target terminal according to the handover request success response message, where the method includes:
after receiving a switching request success response message sent by the second base station according to the switching request message, the first base station sends an RRC connection reconfiguration message to the target terminal according to the switching request success response message;
if the RRC connection reconfiguration completion message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, sending the RRC connection reconfiguration message to the target terminal again until the RRC connection reconfiguration completion message sent by the target terminal is received or the maximum sending times is reached;
if the first base station does not receive the RRC connection reconfiguration complete message sent by the target terminal, sending a synchronization reconfiguration modification failure notification message to the second base station, wherein the synchronization reconfiguration modification failure notification message comprises:
and if the first base station does not receive the RRC connection reconfiguration completion message sent by the target terminal after sending the RRC connection reconfiguration message for the maximum sending times, sending a synchronization reconfiguration modification failure notification message to the second base station.
Optionally, the first base station sends a notification message of failed synchronization reconfiguration modification to the second base station, or the first base station sends a notification message of successful synchronization reconfiguration modification to the second base station, where the involved interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
In a second aspect, an embodiment of the present application provides a conditional synchronization reconfiguration information method, including:
the second base station receives a switching request message which is sent by the first base station and used for requesting to modify the conditional synchronization reconfiguration information of the target terminal;
after the second base station sends a switching request success response message to the first base station according to the switching request message, the first base station sends a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the switching request success response message, wherein the switching request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
if the second base station receives the synchronous reconfiguration modification failure notification message sent by the first base station, recovering to use the conditional synchronous reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when the first base station determines that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same switching request message for requesting to modify the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, cannot be received.
Optionally, the method further comprises: and if the second base station receives the synchronous reconfiguration modification success notification message sent by the first base station or does not receive the synchronous reconfiguration modification failure notification message sent by the first base station within the set time length, using the modified conditional synchronous reconfiguration information of the target terminal, wherein the same switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal, sent by the first base station, cannot be received before the synchronous reconfiguration modification success notification message sent by the first base station is received.
Optionally, the second base station receives the notification message of the failure of the reconfiguration modification from the first base station, or the second base station receives the notification message of the success of the reconfiguration modification from the first base station, where the related interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
In a third aspect, an embodiment of the present application provides a base station, including:
a sending module, configured to send a handover request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal to the second base station;
a receiving module, configured to receive a handover request success response message sent by the second base station according to the handover request message, where the handover request success response message carries modified conditional synchronization reconfiguration information of the target terminal;
the sending module is further configured to send an infinite resource RRC connection reconfiguration message to the target terminal according to the handover request success response message, where the RRC connection reconfiguration message carries the modified conditional synchronization reconfiguration information of the target terminal;
and the processing module is used for sending a synchronous reconfiguration modification failure notification message to the second base station if the sending module fails to successfully notify the target terminal to modify the conditional synchronous reconfiguration information according to the RRC connection reconfiguration message, so that the second base station recovers to use the conditional synchronous reconfiguration information of the target terminal before modification, wherein before sending the synchronous reconfiguration modification failure notification message to the second base station, the switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal is not sent again.
In a fourth aspect, an embodiment of the present application provides a base station, including:
a receiving module, configured to receive a handover request message sent by a first base station, where the handover request message is used to request modification of conditional synchronization reconfiguration information of a target terminal;
a sending module, configured to send a handover request successful response message to the first base station according to the handover request message, so that the first base station sends a radio resource control, RRC, connection reconfiguration message to the target terminal according to the handover request successful response message, where the handover request successful response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
the processing module is used for recovering the conditional synchronization reconfiguration information of the target terminal before modification if the receiving module receives the synchronization reconfiguration modification failure notification message sent by the first base station; the synchronization reconfiguration modification failure notification message is sent by the first base station when the first base station determines that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same switching request message for requesting to modify the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, cannot be received.
In a fifth aspect, an embodiment of the present application provides a base station, including: a processor, memory, transceiver;
the transceiver receives and transmits data under the control of the processor;
a memory storing computer instructions;
a processor for reading computer instructions to perform a method as in any one of the first aspect.
In a sixth aspect, an embodiment of the present application provides a base station, including: a processor, memory, transceiver;
the transceiver receives and transmits data under the control of the processor;
a memory storing computer instructions;
a processor for reading computer instructions to perform a method as in any one of the second aspects.
In a seventh aspect, an embodiment of the present application provides a storage medium, where a computer-readable storage medium stores computer-executable instructions for causing a computer to perform the method according to any one of the first aspect.
In an eighth aspect, embodiments of the present application provide a storage medium, where a computer-readable storage medium stores computer-executable instructions for causing a computer to perform a method as in any one of the second aspects.
In the embodiment of the application, a first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of a target terminal to a second base station, after receiving a switching request success response message sent by the second base station according to the switching request message, the first base station sends an RRC connection reconfiguration message to the target terminal, and if the first base station does not receive an RRC connection reconfiguration completion message sent by the target terminal, the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification, thereby keeping the synchronization reconfiguration information of the terminal side and the network side consistent, and further improving the network communication quality.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 schematically illustrates a flow chart of a conditional synchronization reconfiguration provided by an embodiment of the present application;
fig. 2 is a flowchart illustrating a conditional synchronization reconfiguration information modification method provided by an embodiment of the present application;
fig. 3 is a signaling interaction diagram illustrating a failure of modifying conditional synchronization reconfiguration information according to an embodiment of the present application;
fig. 4 exemplarily shows a signaling interaction diagram of successful modification of conditional synchronization reconfiguration information provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram illustrating a first base station in the embodiment of the present application;
fig. 6 is a schematic structural diagram illustrating a second base station in the embodiment of the present application;
fig. 7 is a schematic structural diagram illustrating a first base station in the embodiment of the present application;
fig. 8 illustrates a schematic structural diagram of a second base station in the embodiment of the present application.
Detailed Description
The embodiment of the application provides a method and a device for synchronously reconfiguring conditions, which can enable a terminal side and a network side to use the same condition synchronous reconfiguration information, thereby improving the network quality.
In this embodiment, a "terminal," also referred to as User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user, for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
The "base station" in this embodiment may be a wireless access network (RAN) node or a base station. The RAN is the part of the network that accesses the terminal to the wireless network. A RAN node (or device) is a node (or device) in a radio access network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In addition, in one network configuration, the RAN may include a Centralized Unit (CU) node and a Distributed Unit (DU) node.
The general idea of the conditional synchronization reconfiguration is that a network side issues a synchronization reconfiguration command to a terminal in advance, the terminal does not initiate a synchronization reconfiguration process in a synchronization reconfiguration target cell as soon as a traditional synchronization reconfiguration process is received, but stores conditional synchronization reconfiguration information in the synchronization reconfiguration command, the synchronization reconfiguration process is not initiated in the target cell until a condition configured in the synchronization reconfiguration command is met, and one conditional synchronization reconfiguration command allows configuration of the conditional synchronization reconfiguration information of one or more target cells.
The conditional synchronous reconfiguration technology solves the problem of terminal movement robustness, the traditional synchronous reconfiguration process is triggered by a network side, but the network side does not know the accurate moving direction of the terminal, wrong judgment happens occasionally, although the conditional synchronous reconfiguration process is also triggered by the network side, the terminal can judge which target cell is accessed according to a signal monitored by the terminal, and the success rate and the accuracy of synchronous reconfiguration can be increased because the terminal judges that a synchronous reconfiguration target can better reflect the actual condition of the terminal compared with the network side. On the other hand, for a terminal moving at a high speed, the conventional synchronous reconfiguration process is too slow, the terminal measures the time interval between the report and the receipt of the synchronous reconfiguration of the network side, so that the terminal is likely to fail to receive the synchronous reconfiguration command or receive the synchronous reconfiguration command which is not timely, and the conditional synchronous reconfiguration allows the network side to issue the synchronous reconfiguration command to the terminal in advance, so that the problem that the terminal cannot receive the synchronous reconfiguration command at a high speed is alleviated to a certain extent.
Fig. 1 schematically illustrates a flow chart of a conditional synchronization reconfiguration provided by an embodiment of the present application. As shown, the process includes the following steps:
s101: and the base station of the source cell of a certain terminal determines to perform the switching from the source cell to the target cell of the terminal according to the reconfiguration of the using condition of the terminal based on the realization.
S102: and the source cell base station of the terminal informs the condition synchronization reconfiguration information of the replacement source cell generated by the network side of the terminal through the reconfiguration message.
S103: after the conditional synchronization reconfiguration condition of the target cell of the terminal is triggered, the terminal initiates a synchronization process in the target cell.
However, in the parameter modification process of the conditionally synchronized reconfiguration, when the source cell sends a handover request for requesting to modify the content of the conditionally synchronized reconfiguration to the target cell and the target cell replies a handover request response, if the source cell cannot notify the terminal to modify the content of the conditionally synchronized reconfiguration for some reason, the target cell may already apply new conditionally synchronized reconfiguration information, the terminal does not receive the notification of the parameter modification, and the problem that the conditionally synchronized reconfiguration information of the terminal side and the network side is inconsistent when the old conditionally synchronized reconfiguration information is used is caused.
In order to solve the foregoing problem, an embodiment of the present application provides a conditional synchronization reconfiguration method, where a first base station is capable of sending an RRC connection reconfiguration message to a second base station according to an RRC connection reconfiguration complete message sent by a target terminal, where the RRC connection reconfiguration message includes a synchronization reconfiguration modification failure notification message or a synchronization reconfiguration modification success notification message, so that conditional synchronization reconfiguration information used by the second base station is consistent with the target terminal. The first base station is a base station corresponding to a source cell, and the second base station is a base station corresponding to a target cell.
It should be noted that the conditional synchronization reconfiguration allows the network side to reserve resources of one or more target cells to the terminal in advance, but the terminal will only select one target cell that meets the trigger condition to complete the synchronization reconfiguration process, so that, for the network side, it is necessary to comprehensively consider whether the conditional synchronization reconfiguration or the conventional synchronization reconfiguration process is used at all, so as to save the occupied overhead of the network side resources.
The base station may determine whether to use conditional synchronization reconfiguration as needed. And if the condition synchronous reconfiguration is needed, carrying out synchronous reconfiguration according to the following flow of the embodiment of the application, otherwise, carrying out synchronous reconfiguration according to the traditional synchronous reconfiguration flow.
Specifically, it may be determined whether to use the conditional synchronous reconfiguration according to the communication interface detection condition (for example, it is determined to use the conditional synchronous reconfiguration when the communication interface quality is detected to be poor). The above list is only an example of one possibility of using the conditional synchronization reconfiguration, and the embodiments of the present application do not limit the manner or policy for determining whether to use the conditional synchronization reconfiguration.
Fig. 2 is a flowchart illustrating a conditional synchronization reconfiguration information modification method provided by an embodiment of the present application. The target terminal and the network side are already configured with the condition synchronization reconfiguration information of the target terminal. For a certain target terminal or some target terminals, the first base station is a source cell base station of the target terminal, and the second base station is a candidate target cell base station of the target terminal.
In the process, a synchronous reconfiguration information modification result message intercommunication mechanism is added between the base stations, so that the base stations can determine whether to use the synchronous reconfiguration information before the current modification or the modified synchronous reconfiguration information for the target terminal according to whether the synchronous reconfiguration information modification operation of the target terminal is successful or not.
As shown, the process includes the following steps:
s201: the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station.
In this step, if the first base station needs to modify the conditional synchronization reconfiguration information of the target terminal, a handover request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal is sent to the second base station.
The conditional synchronization reconfiguration information may include an identifier (such as a cell number) of the candidate target cell, configuration information of the candidate target cell, the number of candidate target cells, and other parameters.
S202: and after receiving the switching request message of the conditional synchronization reconfiguration information sent by the first base station, the second base station modifies the conditional synchronization reconfiguration information of the target terminal stored in the second base station according to the message, and sends a switching request success response message to the first base station, wherein the switching request success response message carries the modified conditional synchronization reconfiguration information of the target terminal.
S203: and after receiving the response message of successful switching request sent by the second base station, the first base station sends RRC connection reconfiguration message to the target terminal.
In this step, the RRC connection reconfiguration message carries the modified conditional synchronization reconfiguration information of the target terminal, so that the target terminal modifies the conditional synchronization reconfiguration information stored in the terminal.
According to the protocol, after receiving the reconfiguration modification notification message sent by the first base station, the target terminal modifies the condition synchronization reconfiguration information and sends an RRC connection reconfiguration completion message to the first base station. However, for some reasons (such as poor quality of the communication interface between the first base station and the target terminal, or failure of sending the RRC connection reconfiguration message sent by the first base station to the target terminal), the RRC connection reconfiguration message sent by the first base station may not be received by the terminal.
S204: if the first base station fails to successfully notify the target terminal to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, the process proceeds to S205, and if the first base station successfully notifies the target terminal to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, the process proceeds to S206.
In this step, after the first base station sends the RRC connection reconfiguration message to the target terminal, if the RRC connection reconfiguration complete message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, it may be determined that the target terminal fails to modify the current condition synchronization reconfiguration message, and then the process goes to S205.
S205: and the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification.
In this step, before the first base station sends the synchronization reconfiguration modification failure notification message to the second base station, the handover request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal is not sent again.
Wherein, the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, and the involved interfaces include at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
S206: after receiving the RRC connection reconfiguration complete message sent by the target terminal, the first base station sends a synchronization reconfiguration modification success notification message to the second base station, so that the second base station uses the modified conditional synchronization reconfiguration information of the target terminal after receiving the synchronization reconfiguration modification success notification message.
In this step, the RRC connection reconfiguration complete message is sent by the target terminal after the target terminal completes modifying the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, and the handover request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal is not sent again before the first base station sends the synchronization reconfiguration modification success notification message to the second base station.
Wherein, the first base station sends a synchronization reconfiguration modification success notification message to the second base station, and the involved interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
In this embodiment, before the second base station modifies the conditional synchronization reconfiguration information of the target terminal, the conditional synchronization reconfiguration information may be cached. After receiving the synchronization reconfiguration modification success notification message sent by the first base station, the second base station may delete the cached conditional synchronization reconfiguration information before modification, and retain the modified conditional synchronization reconfiguration information. And after receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the second base station can restore the conditional synchronization reconfiguration information before modification.
In some embodiments, if the first base station receives the RRC connection reconfiguration complete message sent by the target terminal, it may not send the synchronization reconfiguration modification success notification message to the second base station, and the second base station determines that the current conditional reconfiguration modification operation of the target terminal is successful by default when the second base station does not receive the synchronization reconfiguration modification failure notification message for the current conditional reconfiguration modification operation within the set time length.
In some embodiments, after the first base station sends the RRC connection reconfiguration message to the target terminal, if the RRC connection reconfiguration complete message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, the first base station may send the RRC connection reconfiguration message to the target terminal again until the RRC connection reconfiguration complete message sent by the target terminal is received, or the maximum sending number is reached. The set duration and the maximum sending times can be set according to network performance or actual needs.
Optionally, if the first base station does not receive the RRC connection reconfiguration complete message sent by the target terminal after sending the RRC connection reconfiguration message for the maximum number of times, the first base station sends a synchronization reconfiguration modification failure notification message to the second base station.
Based on the flow shown in fig. 2, fig. 3 and fig. 4 describe the interaction process between the base station and the terminal, respectively taking the case that the first base station determines that the operation of modifying the conditional reconfiguration information of the target terminal fails and succeeds.
Fig. 3 exemplarily shows a signaling interaction diagram of a failed modification of conditional synchronization reconfiguration information provided by an embodiment of the present application. As shown, the interaction flow includes:
s301: the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station.
S302: and after receiving the switching request message, the second base station modifies and stores the conditional synchronization reconfiguration information according to the message, and sends a switching request success response message to the first base station, wherein the switching request success response message carries the modified conditional synchronization reconfiguration information.
S303: and after receiving the response message of successful switching request, the first base station sends RRC connection reconfiguration message to the target terminal, wherein the RRC connection reconfiguration message carries the modified conditional synchronization reconfiguration information of the target terminal, so that the target terminal modifies the conditional synchronization reconfiguration information stored in the terminal.
S304: the first base station does not receive the RRC connection reconfiguration finishing message sent by the target terminal within the set time length, further determines that the current condition synchronization reconfiguration modification operation of the target terminal fails, and sends a synchronization reconfiguration modification failure notification message to the second base station.
S305: and after receiving the synchronization reconfiguration modification failure notification message, the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification.
In this step, the interface involved by the second base station receiving the synchronization reconfiguration modification failure notification message includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
Fig. 4 exemplarily shows a signaling interaction diagram of successful modification of conditional synchronization reconfiguration information provided by an embodiment of the present application. As shown, the interaction flow includes:
s401: the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station.
S402: and after receiving the switching request message, the second base station modifies and stores the conditional synchronization reconfiguration information according to the message, and sends a switching request success response message to the first base station, wherein the switching request success response message carries the modified conditional synchronization reconfiguration information.
S403: and after receiving the response message of successful switching request, the first base station sends RRC connection reconfiguration message to the target terminal, wherein the RRC connection reconfiguration message carries the modified conditional synchronization reconfiguration information of the target terminal, so that the target terminal modifies the conditional synchronization reconfiguration information stored in the terminal.
S404: and after receiving the RRC connection reconfiguration message, the target terminal modifies the condition synchronization reconfiguration information and sends an RRC connection reconfiguration completion message to the first base station.
S405: after receiving the RRC connection reconfiguration complete message sent by the target terminal, the first base station determines that the current condition synchronization reconfiguration modification operation of the target terminal is successful, and sends a synchronization reconfiguration modification success notification message to the second base station.
S406: and after receiving the synchronous reconfiguration modification success notification message, the second base station confirms that the current conditional synchronous reconfiguration modification operation of the target terminal is successful, and uses the stored modified conditional synchronous reconfiguration information.
In this step, the interface involved by the second base station receiving the synchronization reconfiguration modification success notification message includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
In the above embodiment, a synchronization reconfiguration information modification result message interworking mechanism is added to the first base station and the second base station, so that after the first base station sends the RRC connection reconfiguration message to the target terminal, if the RRC connection reconfiguration complete message sent by the target terminal for the current condition synchronization reconfiguration information modification operation is not received, the current modification operation of the target terminal is considered to be failed, and thus a synchronization reconfiguration modification failure notification message is sent to the second base station based on the interworking mechanism, so that the second base station resumes using the condition synchronization reconfiguration information before the current modification for the target terminal, thereby ensuring the consistency of the synchronization reconfiguration information of the network side and the target terminal side, and further improving the network quality.
Based on the same technical concept, the embodiment of the present application provides a base station, and the base station can implement the method on the first base station side in the above embodiments.
Referring to fig. 5, the base station includes: a sending module 501, a receiving module 502 and a processing module 503.
A sending module 501, configured to send a handover request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station;
a receiving module 502, configured to receive a handover request success response message sent by the second base station according to the handover request message, where the handover request success response message carries the modified conditional synchronization reconfiguration information of the target terminal;
the sending module 501 is further configured to send an RRC connection reconfiguration message to the target terminal, where the RRC connection reconfiguration message carries the modified conditional synchronization reconfiguration information of the target terminal;
a processing module 503, configured to send a synchronization reconfiguration modification failure notification message to the second base station if the sending module 501 fails to successfully notify the target terminal to modify the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification, where before sending the synchronization reconfiguration modification failure notification message to the second base station, a handover request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal is not sent again.
Optionally, the processing module 503 is further configured to, if the sending module 501 successfully notifies the target terminal to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, send a synchronization reconfiguration modification success notification message to the second base station when the receiving module 502 receives the RRC connection reconfiguration complete message sent by the target terminal, so that the second base station uses the modified condition synchronization reconfiguration information of the target terminal; and the RRC connection reconfiguration complete message is sent by the target terminal after the modification of the conditional synchronization reconfiguration information is completed according to the RRC connection reconfiguration message, and the switching request message for requesting the modification of the conditional synchronization reconfiguration information of the target terminal is not sent again before the synchronization reconfiguration modification success notification message is sent to the second base station.
Optionally, the processing module 503 is further configured to, if the RRC connection reconfiguration complete message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, send the RRC connection reconfiguration message to the target terminal again by the sending module 501 until the receiving module 502 receives the RRC connection reconfiguration complete message sent by the target terminal, or the maximum sending frequency is reached;
optionally, the processing module 503 is further configured to, if the receiving module 502 does not receive the RRC connection reconfiguration complete message sent by the target terminal after the RRC connection reconfiguration message is sent for the maximum sending times, send the synchronization reconfiguration modification failure notification message to the second base station by the sending module 501.
Optionally, the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, or the first base station sends a synchronization reconfiguration modification success notification message to the second base station, where the involved interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
It should be noted that, the base station provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.
Based on the same technical concept, the embodiment of the present application provides a base station, and the base station can implement the method on the second base station side in the above embodiments.
Referring to fig. 6, the base station includes: a receiving module 601, a processing module 602, and a sending module 603.
A receiving module 601, configured to receive a handover request message sent by a first base station and used to request to modify conditional synchronization reconfiguration information of a target terminal;
a sending module 602, configured to send a handover request successful response message to the first base station according to the handover request message, so that the first base station sends a radio resource control, RRC, connection reconfiguration message to the target terminal according to the handover request successful response message, where the handover request successful response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
a processing module 603, configured to, if the receiving module 801 receives the synchronization reconfiguration modification failure notification message sent by the first base station, resume using the conditional synchronization reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when the first base station determines that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same switching request message for requesting to modify the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, cannot be received.
Optionally, the processing module 603 is further configured to use the modified conditional synchronization reconfiguration information of the target terminal if the receiving module 601 receives the synchronization reconfiguration modification success notification message sent by the first base station, or does not receive the synchronization reconfiguration modification failure notification message sent by the first base station within the set time length, where the same handover request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal, sent by the first base station, is not received before the synchronization reconfiguration modification success failure notification message sent by the first base station is received.
Optionally, the second base station receives the notification message of the failure of the reconfiguration modification from the first base station, or the second base station receives the notification message of the success of the reconfiguration modification from the first base station, where the related interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
It should be noted that, the base station provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.
Based on the same technical concept, the embodiment of the present application further provides a base station, and the base station can implement the function of the first base station side in the above embodiments.
Fig. 7 schematically shows a structure of the first base station in the embodiment of the present application. As shown, the first base station may include: a processor 701, a memory 702, a transceiver 703, and a bus interface 704.
The memory 702 may store computer instructions used by the processor 701 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 701. The processor 701 is used to read the computer instructions stored by the memory 702, and is responsible for managing the bus architecture and general processing, and performs the following operations:
sending a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to a second base station;
after receiving a handover request success response message sent by the second base station according to the handover request message, sending an RRC connection reconfiguration message to the target terminal, wherein the handover request success response message carries the modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries the modified condition synchronization reconfiguration information of the target terminal;
and if the target terminal is not successfully notified to modify the conditional synchronization reconfiguration information according to the RRC connection reconfiguration, sending a synchronization reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification, wherein before the synchronization reconfiguration modification failure notification message is sent to the second base station, a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal is not sent again.
Optionally, the executed operations further include: if the target terminal is successfully notified to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, and the RRC connection reconfiguration completion message sent by the target terminal is received, the synchronization reconfiguration modification success notification message is sent to the second base station, so that the second base station uses the modified condition synchronization reconfiguration information of the target terminal; and the RRC connection reconfiguration complete message is sent by the target terminal after the modification of the conditional synchronization reconfiguration information is completed according to the RRC connection reconfiguration message, and the switching request message for requesting the modification of the conditional synchronization reconfiguration information of the target terminal is not sent again before the synchronization reconfiguration modification success notification message is sent to the second base station.
Optionally, after receiving a handover request success response message sent by the second base station according to the handover request message, sending an RRC connection reconfiguration message to the target terminal according to the handover request success response message, where the method includes:
after receiving a switching request success response message sent by the second base station according to the switching request message, sending an RRC connection reconfiguration message to the target terminal according to the switching request success response message;
if the RRC connection reconfiguration completion message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, sending the RRC connection reconfiguration message to the target terminal again until the RRC connection reconfiguration completion message sent by the target terminal is received or the maximum sending times is reached;
if the RRC connection reconfiguration completion message sent by the target terminal is not received, sending a synchronization reconfiguration modification failure notification message to the second base station, wherein the synchronization reconfiguration modification failure notification message comprises:
and if the RRC connection reconfiguration completion message sent by the target terminal is not received after the RRC connection reconfiguration message is sent for the maximum sending times, sending a synchronization reconfiguration modification failure notification message to the second base station.
Optionally, the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, or the first base station sends a synchronization reconfiguration modification success notification message to the second base station, where the involved interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 702, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.
The processes disclosed in the embodiments of the present application may be applied to the processor 701, or implemented by the processor 701. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and completes the steps of the signal processing flow in combination with the hardware thereof. Specifically, the processor 701 is configured to read the computer instructions in the memory 702 and execute the functions implemented on the base station side in the above embodiments.
It should be noted that, the base station provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.
Based on the same technical concept, the embodiment of the present application further provides a base station, and the base station can implement the function of the second base station side in the above embodiments.
Fig. 8 illustrates a schematic structural diagram of a second base station in the embodiment of the present application. As shown, the second base station may include: a processor 801, a memory 802, a transceiver 803, and a bus interface 804.
The memory 802 may store computer instructions used by the processor 801 in performing operations. The transceiver 803 is used for receiving and transmitting data under the control of the processor 801. The processor 801 is used to read the computer instructions stored by the memory 802, and is responsible for managing the bus architecture and general processing, and performs the following operations:
receiving a switching request message which is sent by a first base station and used for requesting to modify the conditional synchronization reconfiguration information of a target terminal;
after a switching request success response message is sent to the first base station according to the switching request message, the first base station sends a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the switching request success response message, wherein the switching request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
if receiving a synchronization reconfiguration modification failure notification message sent by the first base station, recovering to use the conditional synchronization reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when the first base station determines that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same switching request message for requesting to modify the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, cannot be received.
Optionally, if the second base station receives the notification message of successful reconfiguration modification sent by the first base station, or does not receive the notification message of failed reconfiguration modification sent by the first base station within the set duration, the modified conditional synchronization reconfiguration information of the target terminal is used, wherein the same handover request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal, sent by the first base station, is not received before the notification message of successful reconfiguration modification sent by the first base station is received.
Optionally, the second base station receives the notification message of the failure of the reconfiguration modification from the first base station, or the second base station receives the notification message of the success of the reconfiguration modification from the first base station, where the related interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 802, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 may store data used by the processor 801 in performing operations.
The processes disclosed in the embodiments of the present application can be applied to the processor 801 or implemented by the processor 801. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The processor 801 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the signal processing flow in combination with the hardware thereof. Specifically, the processor 801 is configured to read computer instructions in the memory 802 and execute functions implemented on the terminal side.
It should be noted that, the base station provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.
An embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are used to enable a computer to execute the method performed by the first base station in the foregoing embodiment.
An embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are used to enable a computer to execute the method performed by the second base station in the foregoing embodiment.
The embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are used to enable a computer to execute the method executed by the terminal in the foregoing embodiment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (18)

1. A method for conditional synchronous reconfiguration, comprising:
the first base station sends a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to the second base station;
after receiving a handover request success response message sent by the second base station according to the handover request message, the first base station sends a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the handover request success response message, wherein the handover request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
and if the first base station fails to successfully notify the target terminal to modify the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, sending a synchronization reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification, wherein before sending the synchronization reconfiguration modification failure notification message to the second base station, a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal is not sent again.
2. The method of claim 1, further comprising:
if the first base station successfully notifies the target terminal to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, after receiving the RRC connection reconfiguration completion message sent by the target terminal, sending a synchronization reconfiguration modification success notification message to the second base station, so that the second base station uses the modified condition synchronization reconfiguration information of the target terminal; and the RRC connection reconfiguration complete message is sent by the target terminal after the target terminal completes modification of the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, and the switching request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal is not sent again before the synchronous reconfiguration modification success notification message is sent to the second base station.
3. The method of claim 1, wherein after receiving a handover request success response message sent by the second base station according to the handover request message, the first base station sends an RRC connection reconfiguration message to the target terminal according to the handover request success response message, including:
after receiving a handover request success response message sent by a second base station according to the handover request message, the first base station sends an RRC connection reconfiguration message to the target terminal according to the handover request success response message;
if the RRC connection reconfiguration completion message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, sending the RRC connection reconfiguration message to the target terminal again until the RRC connection reconfiguration completion message sent by the target terminal is received or the maximum sending times is reached;
if the first base station does not receive the RRC connection reconfiguration complete message sent by the target terminal, sending a synchronization reconfiguration modification failure notification message to the second base station, including:
and if the first base station does not receive the RRC connection reconfiguration completion message sent by the target terminal after sending the RRC connection reconfiguration message for the maximum sending times, sending a synchronization reconfiguration modification failure notification message to the second base station.
4. The method according to any of claims 1-3, wherein the first base station sends a synchronization reconfiguration modification failure notification message to the second base station, or the first base station sends a synchronization reconfiguration modification success notification message to the second base station, and the involved interfaces include at least one of: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
5. A method for conditional synchronous reconfiguration, comprising:
the second base station receives a switching request message which is sent by the first base station and used for requesting to modify the conditional synchronization reconfiguration information of the target terminal;
after the second base station sends a handover request successful response message to the first base station according to the handover request message, enabling the first base station to send a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the handover request successful response message, wherein the handover request successful response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
if the second base station receives the synchronous reconfiguration modification failure notification message sent by the first base station, recovering to use the conditional synchronous reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when determining that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same handover request message for requesting modification of the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, is not received.
6. The method of claim 5, further comprising: and if the second base station receives the notification message of successful modification of synchronous reconfiguration sent by the first base station, or does not receive the notification message of failed modification of synchronous reconfiguration sent by the first base station within a set time length, using the modified conditional synchronous reconfiguration information of the target terminal, wherein the same switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal, sent by the first base station, cannot be received before the notification message of successful modification of synchronous reconfiguration sent by the first base station is received.
7. The method according to any of claims 5-6, wherein the second base station receives the notification message of the failure of the synchronization reconfiguration modification sent by the first base station, or the second base station receives the notification message of the success of the synchronization reconfiguration modification sent by the first base station, and the involved interface includes at least one of: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
8. A base station, comprising:
a sending module, configured to send a handover request message for requesting modification of the conditional synchronization reconfiguration information of the target terminal to the second base station;
a receiving module, configured to receive a handover request success response message sent by the second base station according to the handover request message, where the handover request success response message carries modified conditional synchronization reconfiguration information of the target terminal;
the sending module is further configured to send an RRC connection reconfiguration message of an unlimited resource to the target terminal according to the handover request success response message, where the RRC connection reconfiguration message carries modified conditional synchronization reconfiguration information of the target terminal;
and a processing module, configured to send a synchronization reconfiguration modification failure notification message to the second base station if the sending module fails to successfully notify the target terminal to modify the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, so that the second base station recovers to use the conditional synchronization reconfiguration information of the target terminal before modification, where before sending the synchronization reconfiguration modification failure notification message to the second base station, a handover request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal is not sent again.
9. A base station, comprising:
a receiving module, configured to receive a handover request message sent by a first base station, where the handover request message is used to request modification of conditional synchronization reconfiguration information of a target terminal;
a sending module, configured to send a handover request successful response message to a first base station according to the handover request message, so that the first base station sends a radio resource control, RRC, connection reconfiguration message to the target terminal according to the handover request successful response message, where the handover request successful response message carries modified condition-synchronized reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition-synchronized reconfiguration information of the target terminal;
a processing module, configured to, if the receiving module receives the synchronization reconfiguration modification failure notification message sent by the first base station, resume using the conditional synchronization reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when determining that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same handover request message for requesting modification of the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, is not received.
10. A base station, comprising: a processor, memory, transceiver;
the transceiver receives and transmits data under the control of the processor;
the memory storing computer instructions;
the processor is used for reading the computer instructions and executing the following operations:
sending a switching request message for requesting to modify the conditional synchronization reconfiguration information of the target terminal to a second base station;
after receiving a handover request success response message sent by the second base station according to the handover request message, sending a Radio Resource Control (RRC) connection reconfiguration message to the target terminal, wherein the handover request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
and if the target terminal is not successfully notified to modify the conditional synchronous reconfiguration information according to the RRC connection reconfiguration message, sending a synchronous reconfiguration modification failure notification message to the second base station, so that the second base station recovers to use the conditional synchronous reconfiguration information of the target terminal before modification, wherein before the synchronous reconfiguration modification failure notification message is sent to the second base station, a switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal is not sent again.
11. The base station of claim 10, wherein the operations further comprise:
if the target terminal is successfully notified to modify the condition synchronization reconfiguration information according to the RRC connection reconfiguration message, after receiving an RRC connection reconfiguration completion message sent by the target terminal, sending a synchronization reconfiguration modification success notification message to the second base station, so that the second base station uses the modified condition synchronization reconfiguration information of the target terminal; the RRC connection reconfiguration complete message is sent by the target terminal after completing modifying the conditional synchronization reconfiguration information according to the RRC connection reconfiguration message, and the RRC connection reconfiguration complete message is not sent again to the handover request message requesting to modify the conditional synchronization reconfiguration information of the target terminal before sending the synchronization reconfiguration modification success notification message to the second base station.
12. The base station of claim 10, wherein after receiving a handover request success response message sent by the second base station according to the handover request message, sending an RRC connection reconfiguration message to the target terminal according to the handover request success response message comprises:
after receiving a handover request success response message sent by the second base station according to the handover request message, sending an RRC connection reconfiguration message to the target terminal according to the handover request success response message;
if the RRC connection reconfiguration completion message sent by the target terminal according to the RRC connection reconfiguration message is not received within the set duration, sending the RRC connection reconfiguration message to the target terminal again until the RRC connection reconfiguration completion message sent by the target terminal is received or the maximum sending times is reached;
if the RRC connection reconfiguration complete message sent by the target terminal is not received, sending a synchronization reconfiguration modification failure notification message to the second base station, where the notification message includes:
and if the RRC connection reconfiguration completion message sent by the target terminal is not received after the RRC connection reconfiguration message is sent for the maximum sending times, sending a synchronization reconfiguration modification failure notification message to the second base station.
13. The base station according to any of claims 10-12, wherein a first base station sends a synchronization reconfiguration modification failure notification message to the second base station, or the first base station sends a synchronization reconfiguration modification success notification message to the second base station, and the involved interfaces include at least one of: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
14. A base station, comprising: a processor, memory, transceiver;
the transceiver receives and transmits data under the control of the processor;
the memory storing computer instructions;
the processor is used for reading the computer instructions and executing the following operations:
receiving a switching request message which is sent by a first base station and used for requesting to modify the conditional synchronization reconfiguration information of a target terminal;
after a handover request success response message is sent to a first base station according to the handover request message, enabling the first base station to send a Radio Resource Control (RRC) connection reconfiguration message to the target terminal according to the handover request success response message, wherein the handover request success response message carries modified condition synchronization reconfiguration information of the target terminal, and the RRC connection reconfiguration message carries modified condition synchronization reconfiguration information of the target terminal;
if the second base station receives the synchronous reconfiguration modification failure notification message sent by the first base station, recovering to use the conditional synchronous reconfiguration information of the target terminal before modification; the synchronization reconfiguration modification failure notification message is sent by the first base station when determining that the current condition synchronization reconfiguration information modification of the target terminal fails, and before receiving the synchronization reconfiguration modification failure notification message sent by the first base station, the same handover request message for requesting modification of the condition synchronization reconfiguration information of the target terminal, which is sent by the first base station, is not received.
15. The base station of claim 14, wherein the operations performed further comprise:
and if the second base station receives the notification message of successful modification of synchronous reconfiguration sent by the first base station, or does not receive the notification message of failed modification of synchronous reconfiguration sent by the first base station within a set time length, using the modified conditional synchronous reconfiguration information of the target terminal, wherein the same switching request message for requesting to modify the conditional synchronous reconfiguration information of the target terminal, sent by the first base station, cannot be received before the notification message of successful modification of synchronous reconfiguration sent by the first base station is received.
16. The base station according to any of claims 14-15, wherein the second base station receives the notification message of the failure of the synchronization reconfiguration modification sent by the first base station, or the second base station receives the notification message of the success of the synchronization reconfiguration modification sent by the first base station, and the involved interface includes at least one of the following: XN interface, NG interface, S1 interface, X2 interface, F1 interface and E1 interface.
17. A storage medium storing computer-executable instructions for causing a computer to perform the method of any one of claims 1-4.
18. A storage medium storing computer-executable instructions for causing a computer to perform the method of any one of claims 5-7.
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