CN109548172B - Method and device for changing auxiliary base station under dual connectivity, storage medium and base station - Google Patents
Method and device for changing auxiliary base station under dual connectivity, storage medium and base station Download PDFInfo
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- CN109548172B CN109548172B CN201710684984.3A CN201710684984A CN109548172B CN 109548172 B CN109548172 B CN 109548172B CN 201710684984 A CN201710684984 A CN 201710684984A CN 109548172 B CN109548172 B CN 109548172B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0866—Checking the configuration
- H04L41/0869—Validating the configuration within one network element
Abstract
A method and a device for changing an auxiliary base station under dual connectivity, a storage medium and a base station are provided, the method comprises the following steps: when a source auxiliary base station needs to be changed to a target auxiliary base station, sending query information to the source auxiliary base station so as to query source configuration parameters configured by the source auxiliary base station as a terminal; after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal; and after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station. The scheme of the invention can improve the accuracy of the incremental configuration parameters configured for the terminal by the target auxiliary base station.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for changing an auxiliary base station under dual connectivity, a storage medium, and a base station.
Background
With the development of wireless technology, New Radio access technology (NR) is introduced by 3GPP to cope with the demand for larger data volume and the demand for smaller transmission delay, which is also referred to as fifth generation mobile communication technology 5G.
A dual-connection technology is introduced from LTE Release 12, so that a terminal can simultaneously use resources of two base stations for data transmission, and not only can data throughput rate be improved, but also mobility performance can be improved.
In the existing dual connectivity system, a main base station (Master eNB or Master gbb, MN), a Source Secondary base station (Source Secondary eNB or Source Secondary gbb, Source SN), and a terminal (UE Equipment, UE) may be included.
In the process of changing from a source Secondary base station to a Target Secondary base station (Target Secondary eNB or Target Secondary gNB, Target SN), according to the latest agreed opinion of 3GPP, an incremental configuration parameter, also called incremental signaling (Delta signaling), should be configured from the Target Secondary base station to the terminal, that is, only a different part from the current latest configuration is configured to the terminal.
However, in the prior art, the accuracy of the incremental configuration parameters configured by the target secondary base station needs to be improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a device for changing an auxiliary base station under dual connectivity, a storage medium and a main base station, which can improve the accuracy of incremental configuration parameters configured for a terminal by a target auxiliary base station.
To solve the above technical problem, an embodiment of the present invention provides a method for changing an auxiliary base station under dual connectivity, including the following steps: when a source auxiliary base station needs to be changed to a target auxiliary base station, sending query information to the source auxiliary base station so as to query source configuration parameters configured by the source auxiliary base station as a terminal; after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal; and after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station.
Optionally, before sending the query information to the source secondary base station, the method for changing the secondary base station under dual connectivity further includes: comparing the protocol versions supported by the source auxiliary base station and the target auxiliary base station; determining that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station.
Optionally, the query information includes: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
Optionally, the preset time duration is set by the primary base station or set by the source secondary base station according to a time duration specified by a protocol.
Optionally, the method for changing the secondary base station under dual connectivity further includes: if the protocol version supported by the source auxiliary base station is higher than that of the target auxiliary base station, sending indication information to the target auxiliary base station, wherein the indication information comprises capability information of the terminal, so that the target auxiliary base station generates full configuration parameters for the terminal, the full configuration parameters comprise full configuration cells, and the full configuration cells are used for indicating the target auxiliary base station to generate complete configuration parameters for the terminal; and after receiving the full configuration parameters from the target auxiliary base station, sending the full configuration parameters to the terminal so that the terminal is accessed to the target auxiliary base station.
Optionally, the method for changing the secondary base station under dual connectivity further includes: and receiving configuration success information from the terminal, wherein the configuration success information is sent after the terminal receives the full configuration parameters, the configuration information of the source auxiliary base station is deleted firstly, and then the full configuration parameters are applied.
Optionally, the indication information further includes: and the full configuration identifier is used for indicating that the target auxiliary base station is required to generate complete configuration parameters for the terminal.
Optionally, the full configuration identifier is the same as or different from the full configuration information element.
Optionally, the primary base station and the secondary base station are LTE base stations or NR base stations.
To solve the foregoing technical problem, an embodiment of the present invention provides a changing apparatus for a dual-connectivity lower secondary base station, including: the query information sending module is suitable for sending query information to a source auxiliary base station to query source configuration parameters configured by the source auxiliary base station as a terminal when the source auxiliary base station needs to be changed to a target auxiliary base station; a source configuration parameter sending module, adapted to send the source configuration parameter and the capability information of the terminal to the target secondary base station after receiving the source configuration parameter from the source secondary base station, so that the target secondary base station generates an incremental configuration parameter for the terminal; and the increment configuration parameter sending module is suitable for sending the increment configuration parameter to the terminal after receiving the increment configuration parameter from the target auxiliary base station so that the terminal is accessed to the target auxiliary base station.
Optionally, the apparatus for changing the dual-connectivity lower secondary base station further includes: the comparison module is suitable for comparing the protocol versions supported by the source auxiliary base station and the target auxiliary base station before sending the query information to the source auxiliary base station; a determining module adapted to determine that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station.
Optionally, the query information includes: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
Optionally, the preset time duration is set by the primary base station or set by the source secondary base station according to a time duration specified by a protocol.
Optionally, the apparatus for changing the dual-connectivity lower secondary base station further includes: a terminal capability sending module, adapted to send, when a protocol version supported by the source secondary base station is higher than that of the target secondary base station, indication information to the target secondary base station, where the indication information includes capability information of the terminal, so that the target secondary base station generates a full configuration parameter for the terminal, where the full configuration parameter includes a full configuration cell, and the full configuration cell is used to indicate the target secondary base station to generate a complete configuration parameter for the terminal; and the full configuration parameter sending module is suitable for sending the full configuration parameters to the terminal after receiving the full configuration parameters from the target auxiliary base station so that the terminal is accessed to the target auxiliary base station.
Optionally, the apparatus for changing the dual-connectivity lower secondary base station further includes: and the configuration success information receiving module is suitable for receiving configuration success information from the terminal, wherein the configuration success information is sent after the terminal receives the full configuration parameters, the configuration information of the source auxiliary base station is deleted firstly, and then the configuration parameters are applied.
Optionally, the indication information further includes: and the full configuration identifier is used for indicating that the target auxiliary base station is required to generate complete configuration parameters for the terminal.
Optionally, the full configuration identifier is the same as or different from the full configuration information element.
Optionally, the primary base station and the secondary base station are LTE base stations or NR base stations.
In order to solve the above technical problem, an embodiment of the present invention provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the method for changing a dual connectivity lower secondary base station are executed.
In order to solve the above technical problem, an embodiment of the present invention provides a base station, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the base station executes the steps of the method for changing a dual-connectivity lower auxiliary base station when the processor executes the computer instructions.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, when a source auxiliary base station needs to be changed to a target auxiliary base station, query information is sent to the source auxiliary base station so as to query a source configuration parameter configured by the source auxiliary base station as a terminal; after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal; and after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station. By adopting the scheme, the main base station can obtain the latest source configuration parameters configured for the terminal by the source auxiliary base station by inquiring the source auxiliary base station when the source auxiliary base station needs to be changed to the target auxiliary base station, so that the target auxiliary base station generates the incremental configuration parameters for the terminal according to the latest source configuration parameters, and the accuracy of the incremental configuration parameters generated by the target auxiliary base station is improved.
Further, in the embodiment of the present invention, if the protocol version supported by the source auxiliary base station is higher than that of the target auxiliary base station, the target auxiliary base station generates the full configuration parameter for the terminal, and the terminal accesses the target auxiliary base station according to the full configuration parameter. The problem that the incremental configuration parameters cannot be directly applied due to the fact that the low-version base station cannot understand the configuration of the high version can be solved.
Drawings
Fig. 1 is a flowchart of a first method for changing a dual-connectivity lower secondary base station according to an embodiment of the present invention;
fig. 2 is a partial flowchart of a second method for changing a dual-connectivity lower secondary base station according to an embodiment of the present invention;
fig. 3 is a data flow diagram of a second method for changing a dual connectivity lower secondary base station according to an embodiment of the present invention;
fig. 4 is a partial flowchart of a third method for changing a secondary base station under dual connectivity according to an embodiment of the present invention;
fig. 5 is a data flow diagram of a third method for changing an auxiliary base station under dual connectivity in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for changing a dual-connectivity lower secondary base station according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a specific application scenario in the embodiment of the present invention.
Detailed Description
In the existing dual connectivity technology, a terminal can simultaneously utilize resources of two base stations for data transmission. Specifically, for a terminal configured with dual connectivity, a main base station connected to the terminal is responsible for transmission of RRC signaling, a Secondary base station is responsible for configuration of a Secondary Cell Group (SCG), and the Secondary base station only transmits data, and the Secondary Cell Group needs to be sent to the terminal by the main base station through RRC signaling. The main base station and the secondary base station can both configure a plurality of serving cells for the terminal.
In 5G, since an operator has widely deployed an LTE network, in order to fully utilize an existing LTE network, in an initial NR deployment stage, an NR base station cannot be deployed independently, and a Tight cooperation (light Interworking) between the NR and the LTE network needs to be configured.
With the development of the technology, NR base stations can be deployed independently, and at this time, dual connectivity between NR and LTE can be configured, where NR is a main base station of a terminal and LTE base stations are auxiliary base stations of the terminal; double connections can be constructed between NR base stations or between LTE base stations to provide services for the terminal.
In the existing dual connectivity system, in the process of changing from the source secondary base station to the target secondary base station, the target secondary base station configures incremental configuration parameters to the terminal.
However, in the prior art, the accuracy of the incremental configuration parameters configured by the target secondary base station needs to be improved.
The inventor of the present invention has found through research that, in the prior art, when a source secondary base station changes its internal parameters, for example, the configuration of a secondary base station cell group, the source secondary base station does not need to notify a main base station, so when a target secondary base station generates incremental configuration parameters according to the configuration parameters provided by the main base station, the problem of inaccurate incremental configuration parameters occurs because the configuration parameters provided by the main base station are not the latest configuration parameters.
In the embodiment of the invention, when a source auxiliary base station needs to be changed to a target auxiliary base station, query information is sent to the source auxiliary base station so as to query a source configuration parameter configured by the source auxiliary base station as a terminal; after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal; and after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station. By adopting the scheme, the main base station can obtain the latest source configuration parameters configured for the terminal by the source auxiliary base station by inquiring the source auxiliary base station when the source auxiliary base station needs to be changed to the target auxiliary base station, so that the target auxiliary base station generates the incremental configuration parameters for the terminal according to the latest source configuration parameters, and the accuracy of the incremental configuration parameters generated by the target auxiliary base station is improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, fig. 1 is a flowchart of a first method for changing a dual-connectivity lower secondary base station in an embodiment of the present invention. The first method for changing the secondary base station under dual connectivity may be applied to a primary base station, and may include steps S11 to S13:
step S11: when a source auxiliary base station needs to be changed to a target auxiliary base station, sending query information to the source auxiliary base station so as to query source configuration parameters configured by the source auxiliary base station as a terminal;
step S12: after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal;
step S13: and after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station.
In a specific implementation of step S11, for a terminal configured with dual connectivity, when the secondary base station changes (i.e., the primary base station is not changed but the secondary base station changes), the primary base station first sends query information to the source secondary base station to query the source configuration parameters configured by the source secondary base station for the terminal, so as to obtain the latest configuration of the terminal at the source secondary base station.
Further, the query information may include: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
Specifically, the source configuration parameter configured by the terminal may be modified by the source secondary base station during the generation of the configuration parameter of the terminal by the target secondary base station, so that the incremental configuration parameter configured by the target secondary base station for the terminal is inaccurate or even fails. In order to avoid the above situation, when the primary base station acquires the configuration parameters of the terminal from the source secondary base station, it may be set that the source secondary base station does not modify the source configuration parameters within a preset time length when receiving the request for acquiring the configuration parameters of the terminal. And the forbidding change notification is the timer value of the preset duration.
Specifically, a timer may be started when the source secondary base station receives a request for acquiring the configuration parameters of the terminal, and the source configuration parameters are not modified until the timer expires. It will be appreciated by those skilled in the art that after the timer expires, it typically means that a secondary base station change is no longer triggered, i.e. the source secondary base station may modify the source configuration parameters.
Further, the preset time duration may be set by the primary base station or by the source secondary base station according to a protocol-specified time duration. The preset time duration may be related to a configuration time duration of the target secondary base station, a signaling interaction time duration between the primary base station/the secondary base station/the terminal, and a signaling delay of two nodes of the network, and specifically may be set to 150ms to 1000ms, for example, 500 ms.
In the specific implementation of step S12, after receiving the source configuration parameter from the source-secondary base station, the primary base station sends the source configuration parameter and the capability information of the terminal to the target-secondary base station, and the target-secondary base station generates an incremental configuration parameter for the terminal, that is, only configures a parameter that is different from the source configuration parameter, so as to save signaling overhead.
The capability Information of the terminal may include, for example, a Radio Frequency (RF) band and a band combination, a corresponding Multiple-Input Multiple-Output (MIMO) capability, a Channel State Information (CSI) process number capability, a layer2buffer (layer2buffer) capability, and the like.
In a specific implementation of step S13, after the target secondary base station configures the incremental configuration parameters, the incremental configuration parameters need to be sent to the terminal through the primary base station. And the terminal accesses the target auxiliary base station according to the received increment configuration parameters, thereby finishing the change of the auxiliary base station.
The incremental configuration parameter may include information indicating that the terminal accesses the target secondary base station, and may be sent through Radio Resource Control (RRC) signaling.
In the embodiment of the invention, when the main base station needs to be changed from the source auxiliary base station to the target auxiliary base station, the main base station can obtain the latest source configuration parameters configured for the terminal by the source auxiliary base station through inquiring the source auxiliary base station, so that the target auxiliary base station generates the incremental configuration parameters for the terminal according to the latest source configuration parameters, and the accuracy of the incremental configuration parameters generated by the target auxiliary base station is improved.
Referring to fig. 2, fig. 2 is a partial flowchart of a second method for changing a dual-connectivity lower secondary base station according to an embodiment of the present invention. The second method for changing the secondary base station under dual connectivity may be applied to a primary base station, and may include steps S11 to S13 shown in fig. 1, and may further include steps S21 to S22 before sending query information to the source secondary base station:
step S21: comparing the protocol versions supported by the source auxiliary base station and the target auxiliary base station;
step S22: determining that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station.
Specifically, when the source secondary base station belongs to a high-version base station (e.g., Release 16) and the target secondary base station belongs to a low-version base station (e.g., Release 15), since it is difficult for the low-version base station to fully understand the source configuration parameters configured by the source secondary base station for the terminal, the incremental configuration method may cause an error.
In the embodiment of the present invention, before sending the query information to the source and secondary base stations, the primary base station may ensure that the method for changing the secondary base station under dual connectivity can be effectively implemented by determining that the protocol version supported by the source and secondary base stations is lower than or equal to that of the target secondary base station.
Fig. 3 is a data flow diagram of a second method for changing a dual-connectivity lower auxiliary base station according to an embodiment of the present invention, where the second method for changing a dual-connectivity lower auxiliary base station may include steps S31 to S310, and each step is described below.
In step S31, when a change from the source secondary base station 32 to the target secondary base station 33 is required, the master base station 31 compares the protocol versions supported by the source secondary base station 32 and the target secondary base station 33.
In step S32, the master base station 31 determines that the protocol version supported by the source secondary base station 32 is equal to or lower than the target secondary base station 33.
In step S33, the main base station 31 transmits inquiry information to the source secondary base station 32.
In step S34, the main base station 31 receives the source configuration parameters from the source secondary base station 32.
In step S35, the master base station 31 transmits the source configuration parameters and the terminal capability information to the target secondary base station 33.
In step S36, the target secondary base station 33 generates incremental configuration parameters for the terminal 34.
In step S37, the main base station 31 receives the incremental configuration parameters from the target secondary base station 33.
In step S38, the main base station 31 transmits the incremental configuration parameters to the terminal 34.
In step S39, the terminal 34 accesses the target secondary base station 33.
In step S310, the main base station 31 receives the configuration success information from the terminal 34.
It should be noted that, in the embodiment of the present invention, the execution order of step S39 and step S310 is not limited.
In another specific application of the embodiment of the present invention, after receiving the incremental configuration parameter from the primary base station, the terminal may first send a signaling to the primary base station to indicate that the information is successfully received, and then access the target secondary base station. That is, the step of accessing the target secondary base station by the terminal and the step of sending the signaling to the main base station by the terminal can be executed in parallel.
In the specific implementation, more details about step S31 to step S310 are described with reference to fig. 1 to fig. 2 for implementation, and are not described herein again.
Further, if the protocol version supported by the source secondary base station is higher than that of the target secondary base station, the target secondary base station may generate complete configuration parameters for the terminal. Specifically, when the source secondary base station belongs to a high-version base station and the target secondary base station belongs to a low-version base station, the method of incremental configuration may cause an error.
Specifically, referring to fig. 4, a third method for changing a secondary base station under dual connectivity in the embodiment of the present invention, where the third method for changing a secondary base station under dual connectivity may be used for a primary base station, and may include the steps shown in fig. 1 to fig. 2, and may further include steps S41 to S43:
step S41: if the protocol version supported by the source auxiliary base station is higher than that of the target auxiliary base station, sending indication information to the target auxiliary base station, wherein the indication information comprises capability information of the terminal, so that the target auxiliary base station generates full configuration parameters for the terminal, the full configuration parameters comprise full configuration cells, and the full configuration cells are used for indicating the target auxiliary base station to generate complete configuration parameters for the terminal;
step S42: after receiving the full configuration parameters from the target auxiliary base station, sending the full configuration parameters to the terminal so that the terminal can access the target auxiliary base station;
step S43: and receiving configuration success information from the terminal, wherein the configuration success information is sent after the terminal receives the full configuration parameters, the configuration information of the source auxiliary base station is deleted firstly, and then the full configuration parameters are applied.
In a specific implementation of step S41, when it is necessary to change from the source secondary base station to the target secondary base station, the main base station may send capability information of the terminal to the target secondary base station, so that the target secondary base station generates a complete Configuration parameter, which is also called a Full Configuration (Full Configuration) parameter, for the terminal.
In a specific application of the embodiment of the present invention, the indication information may include capability information of the terminal, and may further include a full configuration identifier, where the full configuration identifier is used to indicate that the target secondary base station is required to generate a full configuration parameter for the terminal.
Specifically, the primary base station may send the capability information and the full configuration identifier of the terminal to the target secondary base station, and the target secondary base station may determine that the full configuration parameter needs to be generated for the terminal according to the received full configuration identifier.
In another specific application of the embodiment of the present invention, the indication information may only include capability information of the terminal, that is, the primary base station may only send the capability information of the terminal to the target secondary base station, and the target secondary base station may automatically determine that a full configuration parameter needs to be generated for the terminal according to the received capability information of the terminal and the unreceived source configuration parameter.
The full configuration parameter comprises a full configuration cell, and the full configuration cell is used for indicating the target auxiliary base station to generate a full configuration parameter for the terminal, so that the main base station and the terminal know that the configuration parameter generated by the target auxiliary base station for the terminal is the full configuration parameter, but not an incremental configuration parameter.
Further, the full-configuration identifier and the full-configuration cell may be the same, for example, both use a cell to indicate full configuration, and the full-configuration identifier and the full-configuration cell may also be different.
In a specific implementation of step S42, after the target secondary base station configures the full configuration parameter, the full configuration parameter needs to be sent to the terminal through the primary base station. And the terminal accesses the target auxiliary base station according to the received signaling, thereby finishing the change of the auxiliary base station.
In the specific implementation of step S43, since the parameter configured by the target secondary base station for the terminal is the full configuration parameter, it is necessary that the terminal deletes the configuration information of the source secondary base station and then applies the full configuration information, in addition to receiving the full configuration parameter, to avoid that there is inconsistent information between the configuration parameters of the source secondary base station and the target secondary base station, which results in an error.
In a specific application of the embodiment of the present invention, after receiving the full configuration parameter, the terminal may delete the configuration information of the source-secondary base station and then apply the full configuration parameter, and then send the configuration success information to the primary base station.
In another specific application of the embodiment of the present invention, after receiving the full configuration parameter from the primary base station, the terminal may first send a signaling to the primary base station to indicate that the information is successfully received, then receive the full configuration parameter, delete the configuration information of the source secondary base station, and then apply the full configuration parameter. That is, the step of accessing the target secondary base station by the terminal and the step of sending the signaling to the main base station by the terminal can be executed in parallel.
Further, the primary base station and the secondary base station may be LTE base stations or NR base stations, where the secondary base station includes a source secondary base station and a target secondary base station. That is, in the embodiment of the present invention, there is no limitation on whether the primary base station and the secondary base station are LTE base stations or NR base stations, and the types of the source secondary base station and the target secondary base station may be the same, for example, the source secondary base station and the target secondary base station are both LTE base stations or both NR base stations.
In the embodiment of the invention, if the protocol version supported by the source auxiliary base station is higher than that of the target auxiliary base station, the target auxiliary base station generates the full configuration parameters for the terminal, and the terminal is accessed to the target auxiliary base station according to the full configuration parameters. The problem that the incremental configuration parameters cannot be directly applied due to the fact that the low-version base station cannot understand the configuration of the high version can be solved.
In the specific implementation, please refer to the description of steps S1 to 3 for further details regarding steps S41 to S43, which are not repeated herein.
Fig. 5 is a data flow diagram of a third method for changing a dual connectivity lower secondary base station in an embodiment of the present invention, where the third method for changing a dual connectivity lower secondary base station may include steps S51 to S58, and the steps are described below.
In step S51, when a change from the source secondary base station 52 to the target secondary base station 53 is required, the main base station 51 compares the protocol versions supported by the source secondary base station 52 and the target secondary base station 53.
In step S52, the master base station 51 determines that the protocol version supported by the source secondary base station 52 is higher than the target secondary base station 53.
In step S53, the main base station 51 transmits instruction information to the target secondary base station 53.
In step S54, the target secondary base station 53 generates full configuration parameters for the terminal 54.
In step S53, the master base station 51 receives the full configuration parameters from the target secondary base station 53.
In step S56, the main base station 51 transmits the full configuration parameters to the terminal 54.
In step S57, after receiving the full configuration parameters, the terminal 54 deletes the configuration information of the source secondary base station 52 and then applies the full configuration parameters.
In step S58, the main base station 51 receives the configuration success information from the terminal 54.
It should be noted that, between step S57 to step S58, or after step S58, a step of accessing the target secondary base station 53 by the terminal 54 may be further included, that is, the step of accessing the target secondary base station by the terminal and the step of sending signaling to the main base station by the terminal may be performed in parallel.
In the specific implementation, please refer to the description of step S41 to step S43 in fig. 4 for further details regarding step S51 to step S58, which are not described herein again.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an apparatus for changing a dual connectivity lower secondary base station according to an embodiment of the present invention. The changing device of the secondary base station under dual connectivity may be used for a primary base station, and may include an inquiry information sending module 61, a source configuration parameter sending module 62, an incremental configuration parameter sending module 63, a comparing module 64, a determining module 65, a terminal capability sending module 66, a full configuration parameter sending module 67, and a configuration success information receiving module 68.
The query information sending module 61 is adapted to send query information to a source secondary base station to query source configuration parameters configured by the source secondary base station as a terminal when a change from the source secondary base station to a target secondary base station is required;
the source configuration parameter sending module 62 is adapted to send the source configuration parameter and the capability information of the terminal to the target secondary base station after receiving the source configuration parameter from the source secondary base station, so that the target secondary base station generates an incremental configuration parameter for the terminal;
the incremental configuration parameter sending module 63 is adapted to send the incremental configuration parameter to the terminal after receiving the incremental configuration parameter from the target secondary base station, so that the terminal accesses the target secondary base station.
The comparing module 64 is adapted to compare the protocol versions supported by the source secondary base station and the target secondary base station before sending the query information to the source secondary base station;
the determining module 65 is adapted to determine that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station.
The terminal capability sending module 66 is adapted to send, when the protocol version supported by the source secondary base station is higher than that of the target secondary base station, indication information to the target secondary base station, where the indication information includes capability information of the terminal, so that the target secondary base station generates a full configuration parameter for the terminal, where the full configuration parameter includes a full configuration cell, and the full configuration cell is used to indicate the target secondary base station to generate a complete configuration parameter for the terminal;
the full configuration parameter sending module 67 is adapted to send the full configuration parameter to the terminal after receiving the full configuration parameter from the target secondary base station, so that the terminal accesses the target secondary base station.
The configuration success information receiving module 68 is adapted to receive configuration success information from the terminal, where the configuration success information is sent after the terminal receives the full configuration parameters, deletes the configuration information of the source secondary base station, and then applies the full configuration parameters.
Further, the query information may include: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
The preset time duration may be set by the primary base station or by or the source secondary base station according to a protocol specified time duration.
The indication information may include: and the full configuration identifier is used for indicating that the target auxiliary base station is required to generate complete configuration parameters for the terminal.
The full configuration identity may be the same as or different from the full configuration information element.
The primary base station and the secondary base station may be LTE base stations or NR base stations.
For the principle, specific implementation and beneficial effects of the apparatus for changing a dual connectivity lower secondary base station, please refer to the description related to the method for changing a dual connectivity lower secondary base station shown in the foregoing and fig. 1 to 5, which is not repeated herein.
The embodiment of the invention also provides a storage medium, wherein a computer instruction is stored on the storage medium, and the computer instruction executes the steps of the method for changing the auxiliary base station under the dual connectivity when running. The storage medium may be a computer readable storage medium, such as an optical disc, a mechanical hard disk, a solid state hard disk, and the like.
The embodiment of the invention also provides a base station, which comprises a memory and a processor, wherein the memory is stored with a computer instruction capable of running on the processor, and the processor executes the step of the changing method of the double-connection lower auxiliary base station when running the computer instruction.
Referring to a specific application scenario shown in fig. 7 in the embodiment of the present invention, when a change from a source secondary base station 72 to a target secondary base station 73 is required, a primary base station 71 sends query information to the source secondary base station 72, then receives a source configuration parameter from the source secondary base station 72 and sends the source configuration parameter and capability information of a terminal to the target secondary base station 73, and then receives an incremental configuration parameter from the target secondary base station 73 and sends the incremental configuration parameter to the terminal 74.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A method for changing a secondary base station under dual connectivity is characterized by comprising the following steps:
when a source auxiliary base station needs to be changed to a target auxiliary base station, sending query information to the source auxiliary base station so as to query source configuration parameters configured by the source auxiliary base station as a terminal;
after receiving the source configuration parameters from the source auxiliary base station, sending the source configuration parameters and the capability information of the terminal to the target auxiliary base station so that the target auxiliary base station generates increment configuration parameters for the terminal;
after receiving the increment configuration parameters from the target auxiliary base station, sending the increment configuration parameters to the terminal so that the terminal accesses the target auxiliary base station;
wherein, before sending query information to the source secondary base station, the method further comprises:
comparing the protocol versions supported by the source auxiliary base station and the target auxiliary base station;
determining that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station;
the method further comprises the following steps:
if the protocol version supported by the source auxiliary base station is higher than that of the target auxiliary base station, sending indication information to the target auxiliary base station, wherein the indication information comprises capability information of the terminal, so that the target auxiliary base station generates full configuration parameters for the terminal, the full configuration parameters comprise full configuration cells, and the full configuration cells are used for indicating that the target auxiliary base station generates complete configuration parameters for the terminal;
and after receiving the full configuration parameters from the target auxiliary base station, sending the full configuration parameters to the terminal so that the terminal is accessed to the target auxiliary base station.
2. The method of claim 1, wherein the query information comprises: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
3. The method of claim 2, wherein the preset duration is set by the primary base station or set by the source secondary base station according to a protocol-specified duration.
4. The method of claim 1, further comprising:
and receiving configuration success information from the terminal, wherein the configuration success information is sent after the terminal receives the full configuration parameters, the configuration information of the source auxiliary base station is deleted firstly, and then the full configuration parameters are applied.
5. The method of claim 1, wherein the indication information further comprises: and the full configuration identifier is used for indicating that the target auxiliary base station is required to generate complete configuration parameters for the terminal.
6. The method of claim 5, wherein the full configuration flag is the same as or different from the full configuration cell.
7. The method of any of claims 1 to 6, wherein the primary base station and the secondary base station are LTE base stations or NR base stations.
8. An apparatus for changing a dual connectivity secondary base station, comprising:
the query information sending module is suitable for sending query information to a source auxiliary base station to query source configuration parameters configured by the source auxiliary base station as a terminal when the source auxiliary base station needs to be changed to a target auxiliary base station;
a source configuration parameter sending module, adapted to send the source configuration parameter and the capability information of the terminal to the target secondary base station after receiving the source configuration parameter from the source secondary base station, so that the target secondary base station generates an incremental configuration parameter for the terminal;
an increment configuration parameter sending module, adapted to send the increment configuration parameter to the terminal after receiving the increment configuration parameter from the target secondary base station, so that the terminal accesses the target secondary base station; wherein the apparatus further comprises:
the comparison module is suitable for comparing the protocol versions supported by the source auxiliary base station and the target auxiliary base station before sending the query information to the source auxiliary base station;
a determining module adapted to determine that the protocol version supported by the source secondary base station is lower than or equal to the target secondary base station;
the device further comprises:
a terminal capability sending module, adapted to send, when a protocol version supported by the source secondary base station is higher than that of the target secondary base station, indication information to the target secondary base station, where the indication information includes capability information of the terminal, so that the target secondary base station generates a full configuration parameter for the terminal, where the full configuration parameter includes a full configuration cell, and the full configuration cell is used to indicate that the target secondary base station generates a complete configuration parameter for the terminal;
and the full configuration parameter sending module is suitable for sending the full configuration parameters to the terminal after receiving the full configuration parameters from the target auxiliary base station so that the terminal is accessed to the target auxiliary base station.
9. The apparatus of claim 8, wherein the query information comprises: and a change prohibition notification, where the change prohibition notification is used to notify the source-secondary base station that the source configuration parameters are prohibited to be changed within a preset time period.
10. The apparatus of claim 9, wherein the preset duration is set by the primary base station or set by the source secondary base station according to a protocol specified duration.
11. The apparatus for changing a dual-connectivity secondary base station as claimed in claim 8, further comprising:
and the configuration success information receiving module is suitable for receiving configuration success information from the terminal, wherein the configuration success information is sent after the terminal receives the full configuration parameters, the configuration information of the source auxiliary base station is deleted firstly, and then the full configuration parameters are applied.
12. The apparatus for changing a dual connectivity secondary base station as claimed in claim 8, wherein the indication information further includes: and the full configuration identifier is used for indicating that the target auxiliary base station is required to generate complete configuration parameters for the terminal.
13. The apparatus of claim 12, wherein the fully configured flag is the same as or different from the fully configured cell.
14. The apparatus for changing a dual-connectivity lower secondary base station as claimed in any one of claims 8 to 13, wherein the primary base station and the secondary base station are LTE base stations or NR base stations.
15. A storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, performs the steps of the method for changing a dual-connectivity lower secondary base station of any one of claims 1 to 7.
16. A base station comprising a memory and a processor, said memory having stored thereon a computer program operable on said processor, wherein said processor, when executing said computer program, performs the steps of the method of changing of a dual-connectivity-lower-secondary base station of any of claims 1 to 7.
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| WO2021030984A1 (en) * | 2019-08-16 | 2021-02-25 | 华为技术有限公司 | Configuration method and apparatus, and computer readable storage medium and system |
| CN112788713A (en) * | 2019-11-07 | 2021-05-11 | Oppo（重庆）智能科技有限公司 | Network connection method, terminal and computer storage medium |
| WO2021232327A1 (en) * | 2020-05-21 | 2021-11-25 | Qualcomm Incorporated | Uplink management for uplink split data radio bearer configuration |
| EP4171085A4 (en) * | 2020-07-03 | 2023-08-02 | Huawei Technologies Co., Ltd. | Communication method and apparatus |
| WO2022193293A1 (en) * | 2021-03-19 | 2022-09-22 | Zte Corporation | Methods for configuration in wireless communication |
| CN115209488A (en) * | 2021-04-09 | 2022-10-18 | ***通信有限公司研究院 | Dual-connection auxiliary node recovery method and device |
| CN115460718A (en) * | 2021-06-09 | 2022-12-09 | 中兴通讯股份有限公司 | Communication connection recovery method, base station, and computer-readable storage medium |
| CN116567757A (en) * | 2022-01-28 | 2023-08-08 | 展讯通信（上海）有限公司 | Auxiliary cell group configuration method, device, chip and module equipment |
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