CN111182565A - Method, device, equipment and storage medium for controlling base station switching - Google Patents
Method, device, equipment and storage medium for controlling base station switching Download PDFInfo
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- CN111182565A CN111182565A CN201911396728.XA CN201911396728A CN111182565A CN 111182565 A CN111182565 A CN 111182565A CN 201911396728 A CN201911396728 A CN 201911396728A CN 111182565 A CN111182565 A CN 111182565A
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- H04W36/00—Hand-off or reselection arrangements
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- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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Abstract
The invention discloses a method, a device, equipment and a storage medium for controlling base station switching, wherein the method comprises the following steps: and identifying a switching stage of the current base station switching, and controlling the resource allocation process of the network element to be executed in parallel after the network element receives a switching signaling in the switching stage. In the process of switching base stations, the resource allocation process inside the network element affects the docking between the base station switching signaling, and therefore the time length of the whole base station switching is also affected, and it is necessary to optimize the process. The method provided by the invention firstly identifies the switching stages of the current base station switching, the resource allocation process of each switching stage is different, and after the network element receives the switching signaling in the switching stage, the resource allocation process of the network element is controlled to be executed in parallel. The parallel execution of the resource allocation process can shorten the time length of the whole process, so that the switching efficiency of the base station is improved, and the parallel resource allocation plays a great role in the popularization of a 5G network requiring low time delay and high data rate in the future.
Description
Technical Field
The present invention relates to the field of wireless communications, and more particularly, to a method, apparatus, device, and storage medium for controlling handover of a base station.
Background
The 5G is an abbreviation of fifth generation mobile communication, and compared with 2G/3G/4G, the 5G is not an independent brand new standard, but an aggregate of further development of the current mobile communication technology, and besides the speed improvement, the 5G can meet the access requirements of people on large bandwidth, high speed, high density and high reliability at any time and any place. When the terminal switches the base station under the 4G core network, because the stability of the network needs to be ensured, the resource configuration process inside the base station is executed in series, the process of resource configuration is ensured to be stable, and the conditions of response failure or overtime and the like can be processed in time, but the cost of stable configuration process is longer time required for switching the base station. In three scenes, namely, an enhanced mobile broadband (eMBB), a large-scale Internet of things (mMTC) and a very high reliability ultra-low delay communication (uRLLC), which are suitable for a 5G network, the scene uRLLC provides a very high requirement for the delay of signal transmission, and not only does this result in that the performance target of the 5G network is high data rate, delay reduction, energy saving, cost reduction, system capacity improvement and large-scale equipment connection, so that base station switching performed under the 5G core network also needs to be optimized, and the switching process is completed at a higher speed under the condition of keeping a certain stability degree.
Disclosure of Invention
The present invention is directed to overcome at least one of the above-mentioned drawbacks of the prior art, and provides a method, an apparatus, a device and a storage medium for controlling a base station handover, so as to solve the problem that the execution duration of the serial resource configuration process in the base station is too long.
A method of controlling base station handover, the method comprising: and identifying a switching stage of the current base station switching, and controlling the resource allocation process of the network element to be executed in parallel after the network element receives a switching signaling in the switching stage.
In the process of switching the base station, the resource configuration process inside the network element affects the butt joint between the base station switching signals, so the time length of the whole base station switching is also affected, and the optimization of the resource configuration process inside the network element is necessary. The method provided by the invention firstly identifies the switching stage of the current base station switching, the resource allocation process of the network element in each switching stage is different, and the base station switching stage is divided into: a switching preparation stage, a switching execution stage and a switching completion stage; and after the network element receives the switching signaling in the switching stage, controlling the resource configuration process of the network element to be executed in parallel. The parallel execution of the resource allocation process can shorten the time of the whole process, thereby improving the switching efficiency of the base station, and the parallel resource allocation process plays a great role in the popularization of 5G networks requiring low time delay and high data rate in the future.
Further, controlling the resource configuration process of the network element to be executed in parallel, specifically: and controlling the network elements to build in parallel and sending resource configuration request information.
The resource allocation process is controlled to be executed in parallel in the network element, the specific control mode is that the network element is controlled to build resource allocation request information in parallel, the resource allocation request information is sent to a corresponding resource allocation module in the network element after the building is finished, the parallel resource allocation is realized, after the resource allocation request information is sent to the corresponding resource allocation module, the resource allocation module responds to corresponding resource allocation response information in the network element, the network element completes the resource allocation process after receiving all the resource allocation response information, and the parallel processing resource allocation process improves the overall efficiency of base station switching.
Further, after controlling the network elements to build in parallel and send the resource configuration request information, starting a timer: if the response time of at least one resource allocation response message exceeds the time of the timer, judging that the resource allocation process has an overtime abnormal condition, and executing response overtime processing; if the response time of all the resource allocation response messages does not exceed the time of the timer, closing the timer when the network element receives all the resource allocation response messages; wherein the resource allocation response message is a signaling responding to the resource allocation request message.
After controlling network elements to build and send resource allocation request information in parallel, monitoring whether the whole parallel resource allocation process is normal or not through setting of a timer, firstly starting the timer, and waiting for each resource allocation response information response network element, wherein the resource allocation response information is a signaling responding to the resource allocation request information; if at least one of the resource allocation response messages is not returned to the network element within the time specified by the timer, indicating that the response of the resource allocation response message is overtime or fails, judging that the overtime abnormal condition occurs in the resource allocation process, and executing response overtime processing to solve the problem of request response overtime or response failure in the current resource allocation; if all the resource allocation response messages return to the network element within the time specified by the timer, the resource allocation process is successfully completed, so that the timer is closed, and the resource allocation process of the network element is successfully completed and executed in parallel. By setting the timer in the process of executing the resource configuration in parallel, the conditions of response failure and response overtime of the resource configuration can be monitored, and overtime exception can be processed in time.
Further, starting a timer: if the response time of at least one resource allocation response message exceeds the time of the timer, determining that the resource allocation process has an overtime abnormal condition, and executing response overtime processing, specifically: after a timer is started, after the network element receives each resource allocation response message, setting a configured flag bit in the resource allocation response message and the resource allocation request message corresponding to the resource allocation response message; if the response time of at least one resource allocation response message exceeds the time of the timer, judging that the resource allocation process has an abnormal overtime condition, and controlling to release the resource allocation request message and the resource allocation response message with the allocated flag bit.
After the timer is started, waiting for the response information of the resource allocation to respond to the network element, and after the network element receives any resource allocation response information, setting a configured flag bit in the resource allocation request information corresponding to the resource allocation response information and the resource allocation response information to represent that the resource allocation corresponding to the resource allocation request information is completed. However, if the response time of at least one of the resource allocation response messages exceeds the time of the timer, it indicates that the resource allocation process is abnormal due to timeout, and the resource that has been allocated needs to be released, so that the resource that needs to be released is the resource allocation request message and the resource allocation response message with the allocated flag bit, and the unused resource is prevented from remaining in the network element.
Further, a terminal initiating the base station switching is identified, a context is distributed to the terminal, and the process and the state of the terminal in the base station switching are managed through the context of the terminal.
The method comprises the steps of identifying any terminal needing to be switched to the base station, and distributing context for each terminal, wherein the context comprises the state of each corresponding terminal in the switching process of the base station, and the context of each terminal is unique, so that the switching process and the switching state of each corresponding terminal can be managed through the context of the terminal, and the switching between different terminals is not interfered.
Further, identifying the terminal, allocating a context to the terminal, and managing a process and a state of the terminal in the base station handover through the context of the terminal, specifically: identifying the terminal through the identifier of the terminal, allocating context for the terminal, and uniquely identifying the terminal and the network element when any network element starts the resource allocation process of the terminal; and in each resource configuration process, determining the context of each terminal through the unique identifier, and managing the process and the state of the terminal in the base station switching process through the context of the terminal.
Each terminal is provided with an identifier of the terminal, the terminal can be more accurately identified through the identifier of the terminal, after the context is allocated to the terminal, when any network element starts the resource allocation process of the terminal, the terminal and the network element are uniquely identified, namely, the switching state of the terminal at the current base station is identified through the resource allocation process of the network element, and the context of the terminal is processed. Therefore, after the unique identifier, when the network element receives any switching instruction, the context of the terminal can be determined through the unique identifier set in the network element, and the base station switching processing is performed on the context of the terminal while resource allocation is performed, so that the base station switching of the terminal is better managed.
A device for controlling base station switching comprises a parallel control module, wherein the parallel control module is used for identifying the switching stage of the current base station switching, and controlling the resource configuration process of a network element to be executed in parallel after the network element receives a switching instruction in the switching stage.
The parallel control module firstly identifies the switching stage of the current base station switching, the resource configuration process of the network element in each switching stage is different, and after the network element receives the switching signaling in the switching stage, the parallel control module controls the resource configuration process of the network element to be executed in parallel. The parallel execution of the resource allocation process can shorten the time of the whole process, thereby improving the switching efficiency of the base station.
Further, the parallel processing module is configured to control the resource configuration process of the network element to be executed in parallel, and specifically includes: and the parallel processing module is used for controlling the network elements to be constructed in parallel and sending resource configuration request information.
The parallel control module controls the resource allocation process to be executed in parallel in the network element, the specific control mode is that the network element is controlled to parallelly establish resource allocation request information, the resource allocation request information is sent to a corresponding resource allocation module in the network element after the establishment is finished, the parallel resource allocation is realized, after the resource allocation request information is sent to the corresponding resource allocation module, the resource allocation module responds to corresponding resource allocation response information in the network element, and the network element completes the resource allocation process after receiving all the resource allocation response information.
Further, the system also comprises an exception handling module; and the exception handling module is used for executing response overtime processing on the resource allocation process when the network element does not receive the resource allocation response information of all the resource allocation request information within the preset time.
After the parallel control module controls the network elements to be parallelly established and sends the resource allocation request information, the exception handling module monitors whether the whole parallel resource allocation process is normally carried out or not through the setting of the timer, firstly, the timer is started, the resource allocation response information of each resource allocation request information is waited for responding to the network element, if at least one resource allocation response information is not returned to the network element within the time specified by the timer, the response of the resource allocation response information is overtime or failed, the condition that the resource allocation process is overtime abnormal is judged, response overtime processing is required to be executed, and the problem that the request response is overtime or response failure in the current resource allocation is solved; and if all the resource configuration information returns to the network element within the time specified by the timer, the resource configuration process is successfully completed, and the timer is closed. The exception handling module can monitor the conditions of response failure and response overtime of resource allocation and timely handle overtime exceptions.
A computer device comprising a memory storing a computer program and a processor implementing the above-described method of controlling a handover of a base station when the processor executes the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the data processing method described above.
Compared with the prior art, the invention has the beneficial effects that:
(1) the specific information of the resource allocation is determined by identifying the stage of base station switching, and the resource allocation process in the base station is executed in parallel, so that the time for switching the base station by the user equipment can be shortened, and the success rate of base station switching is improved;
(2) by setting the timer in the process of executing the resource configuration in parallel, the conditions of response failure and response overtime of the resource configuration can be monitored, and overtime exception can be processed in time;
(3) the terminal and the base station network element are uniquely identified in the resource configuration process, the context of each terminal is managed, and the processing performance of the whole base station when the whole base station faces a plurality of terminals and requests the base station to switch is improved.
Drawings
Fig. 1 is a flowchart illustrating a method for controlling a base station handover according to embodiment 1 of the present invention.
Fig. 2 is a schematic flowchart illustrating additional steps of a method for controlling a base station handover according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of a specific operation flow of step S3 and step S4 in embodiment 1 of the present invention.
Fig. 4 is a schematic flowchart illustrating additional steps of a method for controlling a handover of a base station according to embodiment 1 of the present invention.
FIG. 5 is a schematic view of a detailed operation flow chart of step D11 and step D2 in embodiment 1 of the present invention.
Fig. 6 is a schematic diagram of a timing diagram of a resource allocation process of a network element CU of a target base station in embodiment 2 of the present invention.
Fig. 7 is a schematic diagram of a time sequence diagram of a resource configuration process of a network element DU of a target base station in embodiment 2 of the present invention.
Fig. 8 is a schematic diagram of a timing diagram of a resource allocation process of a network element CU of a source base station in embodiment 2 of the present invention.
Fig. 9 is a schematic structural diagram of a device for controlling base station switching according to embodiment 3 of the present invention.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, the present embodiment provides a method for controlling a base station handover, where the method includes:
s1: identifying a switching stage of current base station switching;
s2: and after the network element receives the switching signaling in the switching stage, controlling the resource configuration process of the network element to be executed in parallel.
The method for controlling the base station handover provided in embodiment 1 may be applied to any controller or other device to which the method is applied, and is hereinafter referred to as "controller" in embodiment 1, which is a party for controlling the handover; similarly, the method for controlling handover of a base station provided in embodiment 1 may also be used to handle any base station or other equipment to which the method is applied, and is hereinafter collectively referred to as "base station" in embodiment 1, and is the same as the "base station" mentioned in step S1, and is the party that is controlled to be handed over; the network element is a module or unit used for processing information transmission in the base station.
The controller executes step S1: identifying a switching stage of current base station switching, wherein the base station switching stage is divided into a switching preparation stage, a switching execution stage and a switching completion stage; because the resource allocation process of each switching stage network element is different, the controller firstly identifies the current base station switching stage; the controller executes step S2: when the network element receives the switching signaling in the switching stage, controlling the resource allocation process of the network element to be executed in parallel; the parallel execution of the resource allocation process can shorten the time of the whole process, thereby improving the switching efficiency of the base station and improving the experience of a user when switching the base station.
As a preferred scheme, in the operation of "controlling the resource configuration process of the network element to be executed in parallel" in step S2, the specific execution process of the controller is: and controlling the network elements to build in parallel and sending resource configuration request information.
The controller controls the resource allocation process to be executed in parallel in the network element, and the specific control mode is to control the network element to construct resource allocation request information in parallel and control the network element to send the resource allocation request information to a corresponding resource allocation module in the network element after the construction is finished, so that the parallel resource allocation in the network element is realized; after the resource allocation request message is sent to the corresponding resource allocation module, the resource allocation module responds to the corresponding resource allocation response message in the network element, and the network element completes the resource allocation process after receiving all the resource allocation response messages.
Preferably, as shown in fig. 2, after step S2 is completed, the controller performs the following operation steps:
s3: starting a timer, and if the response time of at least one resource allocation response message exceeds the time of the timer, executing step S4; if the response time of all the resource allocation response messages does not exceed the time of the timer, go to step S5;
s4: judging that the resource allocation process has an overtime abnormal condition, and executing response overtime processing;
s5: when the network element receives all the resource allocation response information, closing the timer;
after the controller performs step S2, the controller monitors whether the whole parallel resource allocation process is normally performed through the setting of the timer, and the controller performs step S3: starting a timer, wherein the time set by the timer is the time for which all the resource allocation response information is calculated in advance and responded under the normal condition; if at least one of the resource allocation response messages is not returned to the network element within the time specified by the timer, indicating that the response of the resource allocation response message is overtime or failed, the controller executes step S4: judging that the resource configuration process has an overtime abnormal condition, and executing response overtime processing to solve the problem of request response overtime or response failure in the current resource configuration; if all the resource allocation response messages are returned to the network element within the time specified by the timer, it indicates that the resource allocation process is successfully completed, so the controller executes step S5, and when the network element receives all the resource allocation response messages, the timer is closed, and the controller successfully controls the network element to complete the parallel execution of the resource allocation process. The controller can monitor the conditions of response failure and response overtime of the resource configuration by setting the timer in the process of executing the resource configuration in parallel, and timely process overtime exception.
Preferably, as shown in fig. 3, the specific execution process of the controller in step S3 is as follows:
s31: starting a timer;
s32: after the network element receives each resource allocation response message, setting a configured flag bit in the resource allocation response message and the resource allocation request message corresponding to the resource allocation response message;
in the operation of "executing response timeout processing" in step S4, the specific execution process of the controller is: according to the configured flag in step S32, the controller releases the resource allocation request information and the resource allocation response information with the configured flag.
After the timer is started, when the network element receives the resource allocation response information, the controller sets the configured flag bits in both the resource allocation response information and the resource allocation request information corresponding to the resource allocation response information, which represents that the resource allocation corresponding to the resource allocation request information is completed. If the response time of at least one of the resource allocation response messages exceeds the time of the timer, indicating that the resource allocation process is abnormal due to timeout, the controller needs to locate all allocated resources according to the allocated flag in step S32, and execute step S4: and releasing all the resource allocation request information and the resource allocation response information with the allocated zone bits, so as to avoid the residual unused resources in the network element.
Preferably, as shown in fig. 4, the controller further performs the following operation steps in the process of controlling the base station handover:
d1: identifying a terminal initiating the base station switching, and distributing a context for the terminal;
d2: and managing the process and the state of the terminal in the base station switching through the context of the terminal.
When a terminal initiates base station switching, a controller identifies the terminal and allocates contexts to the terminal, each context uniquely corresponds to the state of the terminal, so that the process and the state of the terminal in the base station switching can be managed through the context of the terminal, and the step D1 is executed before the step S1, so that the controller can perform identification management on each terminal, and the terminals are not interfered with each other in the base station switching process; the above step D2 can be performed at any stage of the base station handover after the completion of step D1.
Preferably, the specific implementation procedure of the controller in step D1 is as follows: identifying the terminal through the identifier of the terminal, and distributing a context for the terminal; when any network element that is not uniquely identified with the terminal receives any handover command for the terminal, as shown in fig. 5, the controller performs step D11:
d11: and when any network element starts the resource configuration process of the terminal, uniquely identifying the terminal and the network element.
The specific implementation procedure of the controller in step D2 is as follows: and in each resource configuration process, determining the context of each terminal through the unique identifier, and further managing the process and the state of the terminal in the base station switching process through the context of the terminal.
Step D1 is still required to be executed before step S1, and the controller is able to execute step D11 when any network element that does not have the unique identifier with the terminal receives any handover command for the terminal at any stage of the base station handover after step S1, because step D2 involves the unique identifier in step D11, the controller only executes step D2 for the network element and the terminal with the unique identifier, that is, for the same network element and terminal, the controller is required to execute step D11 before executing step D2.
Each terminal is provided with an identifier of the terminal, the controller can more accurately identify the terminal through the identifier of the terminal, after the context is allocated to the terminal, when any network element starts the resource allocation process of the terminal, the controller uniquely identifies the terminal and the network element, namely, the state of the terminal switched at the current base station is identified through the resource allocation process of the network element, and the context of the terminal is processed. Therefore, after the unique identifier, when the network element receives any switching instruction, the controller can determine the context of the terminal through the unique identifier set in the network element, and perform base station switching processing on the context of the terminal while resource configuration, so as to better manage the base station switching of the terminal.
Example 2
The method for controlling base station handover provided in embodiment 1 may be specifically applied to handover between 5G base stations in embodiment 2, where the 5G base station executing the method for controlling base station handover provided in embodiment 1 is divided into a source base station and a target base station, the source base station is a base station to which a terminal is initially connected, and after the terminal initiates a base station handover signaling, the terminal starts to handover from the source base station to the target base station, and the method for controlling base station handover provided in embodiment 1 is applicable to the source base station and the target base station. The source base station and the target base station are parties controlled to be switched, and will be respectively and collectively referred to as a "source base station" and a "target base station" in embodiment 2; any controller or device applicable to the method is a party for controlling handover, and will be collectively referred to as "controller" in embodiment 2, and when the method is specifically applied to handover between 5G base stations, the controller performs the following procedures:
s1: identifying a switching stage of current base station switching;
s2: and after the network element receives the switching signaling in the switching stage, controlling the network element to build in parallel and sending resource configuration request information.
As shown in fig. 6, currently, for the preparation phase of handover, the network element CU of the target base station receives a handover request at the l3 layer, and then the controller executes step S1: identifying a switching stage of current base station switching as a switching preparation stage; the controller executes step S2: controlling the target base station network element CU to execute a resource allocation process in parallel; in a handover preparation phase, the target base station network element CU configures resources of a data link layer of a terminal initiating the base station handover, including resources configured with f1, pdcp, ngu, and f1u, and the controller controls the target base station network element CU to concurrently configure f1 resource configuration request information, pdcp resource configuration request information, ngu resource configuration request information, and f1u resource configuration request information, and after completing configuration, the distributor inside the target base station network element CU sends the resource configuration request information (arrows 3, 4, 5, and 7 in the figure represent four resource configuration request information) to a corresponding resource configuration module, and waits for a response of resource configuration response information of each resource configuration request information (arrows 6, 8, 9, and 10 in the figure represent four resource configuration response information); the arrow 7 in the figure represents f1u resource allocation request message, which must be sent after responding to the resource allocation response message of the f1 resource allocation request message, and therefore cannot be sent in parallel with the resource allocation request messages represented by the arrows 3, 4, and 5 in the figure.
As shown in fig. 7, currently for the handover preparation phase, the network element DU of the target base station receives F1UeContextSetupRequest at the l3 layer, and then the controller executes step S1: identifying a switching stage of current base station switching as a switching preparation stage; the controller executes step S2: controlling the inside of the target base station network element DU to execute the resource configuration process in parallel; in a handover preparation phase, the target base station network element DU is configured with resources of a data link layer and a physical layer of a terminal initiating the base station handover, including resources configured with cmac, l2, and f1u, and the controller controls the target base station network element DU to concurrently construct cmac resource configuration request information, l2 resource configuration request information, and f1u resource configuration request information, and sends the resource configuration request information ( arrows 3, 4, 5 in the figure represent three resource configuration request information) to a corresponding resource configuration module after the construction is completed through a distributor inside the target base station network element DU, and waits for a response of resource configuration response information ( arrows 6, 7, 8 in the figure represent three resource configuration response information) of each resource configuration request information.
As shown in fig. 8, currently, in the handover execution phase, the network element CU of the source base station receives a handover command at the layer l3, and then the controller executes step S1: identifying a switching stage of current base station switching as a switching execution stage; the controller executes step S2: controlling the source base station network element CU to execute a resource configuration process in parallel; in the handover execution phase, the source base station network element CU configures the data link layer resources of the terminal initiating the base station handover, including resources configured with f1, pdcp, and ngu, and the controller controls the source base station network element CU to concurrently configure f1 resource configuration request information, pdcp resource configuration request information, and ngu resource configuration request information, and sends the resource configuration request information ( arrows 3, 4, and 5 in the figure represent three resource configuration request information) to the corresponding resource configuration module after the configuration is completed by the distributor inside the source base station network element CU, and waits for the response of the resource configuration response information ( arrows 6, 7, and 8 in the figure represent three resource configuration response information) of each resource configuration request information.
Preferably, after each of the network elements completes step S2, the controller continues to perform the following operation steps:
s3: starting a timer and waiting for the response information of the resource allocation of all the resource allocation request information to respond to the network element; if the response time of at least one of the resource allocation response messages exceeds the time of the timer, go to step S4; if the response time of all the resource allocation response messages does not exceed the time of the timer, go to step S5;
s4: judging that the resource allocation process has an overtime abnormal condition, and executing response overtime processing;
s5: when the network element receives all the resource allocation response information, closing the timer;
as shown in fig. 7, for example, with the resource configuration of the network element DU of the target base station in the handover preparation phase, after the controller in the network element DU of the target base station performs step S2, the controller monitors whether the whole parallel resource configuration process is normally performed through the setting of the timer, and after the distributor in the network element DU of the target base station sends three resource configuration response messages represented by arrows 3, 4, and 5 in the figure, the controller performs step S3: starting a timer, and waiting for the resource configuration response information (three resource configuration response information, 6, 7, and 8 in the figure) of each resource configuration request information to respond to the network element DU of the target base station; the time set by the timer is the time for pre-calculating the response time of the resource allocation response information of all the resource allocation request information under the normal condition; if at least one of the resource allocation response messages is not returned to the network element DU of the target base station within the time specified by the timer, indicating that the response of the resource allocation response message is overtime or failed, the controller executes step S4: judging that the resource configuration process has an overtime abnormal condition, and executing response overtime processing to solve the problem of request response overtime or response failure in the current resource configuration; if all the resource allocation information is returned to the network element DU of the target base station within the time specified by the timer, it indicates that the resource allocation process is successfully completed, so the controller executes step S5, and when the network element DU of the target base station receives all the resource allocation response information, the timer is closed, and the controller successfully controls the network element DU of the target base station to complete the parallel execution of the resource allocation process. The controller can monitor the conditions of response failure and response overtime of the resource configuration by setting the timer in the process of executing the resource configuration in parallel, and timely process overtime exception.
Preferably, the specific execution process of the controller in step S3 is as follows:
s31: starting a timer;
s32: after each resource allocation request message receives the corresponding resource allocation response message, setting a configured flag bit in the resource allocation request message and the resource allocation response message of the resource allocation request message;
in the operation of "executing response timeout processing" in step S4, the specific execution process of the controller is: according to the configured flag in step S32, the controller releases the resource allocation request information and the resource allocation response information with the configured flag.
As shown in fig. 7, still taking the resource configuration example of the network element DU of the target base station in the handover preparation phase, after the controller starts the timer, when the controller receives the corresponding resource configuration response message in the process of waiting for the resource configuration response message of the resource configuration request message, the controller sets the configured flag bit in both the resource configuration request message and the corresponding resource configuration response message, which represents that the resource configuration corresponding to the resource configuration request message is completed, for example, when the cmac resource configuration response message represented by the arrow 6 is responded, the configured flag bit is set in the cmac resource configuration request message represented by the arrow 3 and the cmac resource configuration response message represented by the arrow 6. If the response time of at least one of the resource allocation response messages exceeds the time of the timer, indicating that the resource allocation process is abnormal due to timeout, the controller needs to locate all allocated resources according to the allocated flag in step S32, and execute step S4: and releasing all the resource allocation request information and the resource allocation response information with the allocated zone bits, so as to avoid the residual unused resources in the network element.
Preferably, the controller further performs the following operation steps in the process of controlling the handover between the source base station and the target base station:
d1: identifying a terminal initiating the base station switching, and distributing a context for the terminal;
d2: and managing the process and the state of the terminal in the base station switching through the context of the terminal.
When a terminal initiates a base station handover, a controller identifies the terminal and allocates contexts to the terminal, each context uniquely corresponds to a state of the terminal, so that the process and the state of the terminal in the base station handover can be managed through the context of the terminal, step D1 is executed before step S1, the controller is ensured to perform identification management on each terminal, and the terminals do not interfere with each other in the base station handover process; the above step D2 can be performed at any stage of the base station handover after the completion of step D1.
Preferably, the specific implementation procedure of the controller in step D1 is as follows: identifying the terminal through the identifier of the terminal, and distributing a context for the terminal; when any network element which does not uniquely identify the terminal receives any handover command for the terminal, the controller performs step D11:
d11: and when any network element starts the resource configuration process of the terminal, uniquely identifying the terminal and the network element.
The specific implementation procedure of the controller in step D2 is as follows: and in each resource configuration process, determining the context of each terminal through the unique identifier, and further managing the process and the state of the terminal in the base station switching process through the context of the terminal.
Step D1 is still required to be executed before step S1, and the controller is able to execute step D11 when any network element that does not have the unique identifier with the terminal receives any handover command for the terminal at any stage of the base station handover after step S1, because step D2 involves the unique identifier in step D11, the controller only executes step D2 for the network element and the terminal with the unique identifier, that is, for the same network element and terminal, the controller is required to execute step D11 before executing step D2.
Example 3
The method for controlling base station handover provided in embodiment 1 can be applied to the apparatus for controlling base station handover provided in embodiment 3, and the apparatuses for controlling base station handover, which execute the method for controlling base station handover provided in embodiment 1, are all referred to as "apparatuses" in embodiment 3, and as shown in fig. 9, the apparatuses include: a parallel control module M10 and an exception handling module M20. The parallel control module M10 is configured to identify a handover stage of a current base station handover, and after receiving a handover instruction at the handover stage, control the network element to establish in parallel and send a resource configuration request message; the exception handling module M20 is configured to, when the network element does not receive the resource allocation response information of all the resource allocation request information within a preset time, perform response timeout processing on the resource allocation process.
The specific execution process of the parallel control module M10 when implementing its function is:
s1: identifying a switching stage of current base station switching;
s2: when the network element receives the switching signaling in the switching stage, controlling the network element to build in parallel and sending resource configuration request information;
the parallel control module M10 performs step S1: identifying a switching stage of current base station switching, wherein the base station switching stage is divided into a switching preparation stage, a switching execution stage and a switching completion stage; because the resource allocation process of each switching stage network element is different, the controller firstly identifies the current base station switching stage; the parallel control module M10 performs step S2: when the network element receives the switching signaling in the switching stage, controlling the resource allocation process of the network element to be executed in parallel; the parallel execution of the resource allocation process can shorten the time of the whole process, thereby improving the switching efficiency of the base station and improving the experience of a user when switching the base station.
After the parallel control module M10 completes step S2, the exception handling module starts a process of resource allocation, and the specific execution process is as follows:
s3: starting a timer, and if the response time of at least one resource allocation response message exceeds the time of the timer, executing step S4; if the response time of all the resource allocation response messages does not exceed the time of the timer, go to step S5; wherein, the resource allocation response message is a signaling responding to the resource allocation request message;
s4: judging that the resource allocation process has an overtime abnormal condition, and executing response overtime processing;
s5: when the network element receives all the resource allocation response information, closing the timer;
after the parallel control module M10 executes step S2, the exception handling module M20 monitors whether the whole parallel resource allocation process is normally performed through the setting of a timer, and the exception handling module M20 executes step S3: starting a timer, and waiting for the resource allocation response information of each resource allocation request information to respond to the network element; the time set by the timer is the time for which all the resource allocation response information is calculated in advance and responded under the normal condition; if at least one of the resource allocation response messages is not returned to the network element within the time specified by the timer, indicating that the response of the resource allocation response message is overtime or failed, the exception handling module M20 executes step S4: judging that the resource configuration process has an overtime abnormal condition, and executing response overtime processing to solve the problem of request response overtime or response failure in the current resource configuration; if all the resource allocation response messages are returned to the network element within the time specified by the timer, it indicates that the resource allocation process is successfully completed, so the exception handling module M20 executes step S5, and when the network element receives all the resource allocation response messages, the timer is turned off, and the parallel control module M10 and the exception handling module M20 successfully control the network element to complete the parallel execution of the resource allocation process. The exception handling module M20 may monitor the failure of resource configuration response and the condition of response timeout by setting a timer during the process of executing resource configuration in parallel, and handle the timeout exception in time.
Preferably, the specific execution process of the exception handling module M20 in step S3 is as follows:
s31: starting a timer;
s32: after the network element receives the resource allocation response information, setting configured flag bits in the resource allocation response information and the resource allocation request information of the resource allocation response information;
in the operation of "executing response timeout processing" in step S4, the specific execution process of the exception handling module M20 is: according to the configured flag in step S32, the exception handling module M20 releases the resource allocation request information and the resource allocation response information with the configured flag.
The exception handling module M20 starts a timer, and when the network element receives the resource allocation response message, the exception handling module M20 sets a configured flag bit in both the resource allocation response message and the resource allocation request message corresponding to the resource allocation response message, which represents that the resource allocation corresponding to the resource allocation request message is completed. If the response time of at least one of the resource allocation response messages exceeds the time of the timer, indicating that the resource allocation process has a timeout exception, the exception handling module M20 needs to locate all the allocated resources according to the allocated flag in step S32, and execute step S4: and releasing all the resource allocation request information and the resource allocation response information with the allocated zone bits, so as to avoid the residual unused resources in the network element.
Preferably, the parallel control module M10 further performs the following operation steps in the process of controlling the base station handover:
d1: identifying a terminal initiating the base station switching, and distributing a context for the terminal;
d2: and managing the process and the state of the terminal in the base station switching through the context of the terminal.
When a terminal initiates a base station handover, the parallel control module M10 identifies the terminal and allocates contexts to the terminal, each context uniquely corresponds to the state of the terminal, so that the process and the state of the terminal during the base station handover can be managed through the context of the terminal, and the step D1 is executed before step S1, so as to ensure that the parallel control module M10 performs identification management on each terminal, and thus the terminals do not interfere with each other during the base station handover; the above step D2 can be performed at any stage of the base station handover after the completion of step D1.
Preferably, the specific implementation process of the parallel control module M10 in step D1 is as follows: identifying the terminal through the identifier of the terminal, and distributing a context for the terminal; when any network element that is not uniquely identified with the terminal receives any handover instruction with respect to the terminal, the concurrency control module M10 performs step D11:
d11: and when any network element starts the resource configuration process of the terminal, uniquely identifying the terminal and the network element.
The specific implementation process of the parallel control module M10 in step D2 is: and in each resource configuration process, determining the context of each terminal through the unique identifier, and further managing the process and the state of the terminal in the base station switching process through the context of the terminal.
Step D1 still needs to be executed before step S1, and when any network element that does not have a unique identifier with the terminal receives any handover command for the terminal at any stage of the base station handover after step S1 is completed by the parallel control module M10, the parallel control module M10 may execute step D11, and since step D2 involves the unique identifier in step D11, the parallel control module M10 executes step D2 only for the network element and the terminal that have the unique identifier, that is, for the same network element and terminal, the parallel control module 10 needs to execute step D11 before executing step D2.
Each terminal has an identifier of the terminal, the parallel control module M10 can identify the terminal more accurately through the identifier of the terminal, after the context is allocated to the terminal, when any one of the network elements starts the resource configuration process of the terminal, the parallel control module M10 uniquely identifies the terminal and the network element, that is, the state of the terminal switched at the current base station is identified through the resource configuration process of the network element, and the context of the terminal is processed. Therefore, after the unique identifier, when the network element receives any handover instruction, the parallel control module M10 may determine the context of the terminal through the unique identifier already set in the network element, perform the base station handover process on the context of the terminal while configuring the resource, and better manage the base station handover of the terminal.
Example 4
The method for controlling base station handover provided in embodiment 1 may also be applied to the computer device provided in embodiment 4, where the computer device provided in embodiment 4 includes a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the method for controlling base station handover provided in embodiment 1.
Example 5
The method for controlling base station handover provided in embodiment 1 may also be applied to the computer-readable storage medium provided in embodiment 5, where the computer-readable storage medium provided in embodiment 5 stores thereon a computer program, and the computer program, when executed by a processor, may implement the method for controlling base station handover provided in embodiment 1.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (11)
1. A method for controlling base station handover, the method comprising: and identifying a switching stage of the current base station switching, and controlling the resource allocation process of the network element to be executed in parallel after the network element receives a switching signaling in the switching stage.
2. The method for controlling base station handover according to claim 1, wherein the controlling of the resource allocation process of the network element is performed in parallel, specifically: and controlling the network elements to build in parallel and sending resource configuration request information.
3. The method of claim 2, wherein after controlling the network elements to concurrently establish and send the resource allocation request message, starting a timer:
if the response time of at least one resource allocation response message exceeds the time of the timer, judging that the resource allocation process has an overtime abnormal condition, and executing response overtime processing;
if the response time of all the resource allocation response messages does not exceed the time of the timer, closing the timer when the network element receives all the resource allocation response messages;
wherein the resource allocation response message is a signaling responding to the resource allocation request message.
4. The method of claim 3, wherein starting a timer: if the response time of at least one resource allocation response message exceeds the time of the timer, determining that the resource allocation process has an overtime abnormal condition, and executing response overtime processing, specifically:
after a timer is started, after the network element receives each resource allocation response message, setting a configured flag bit in the resource allocation response message and the resource allocation request message corresponding to the resource allocation response message;
if the response time of at least one resource allocation response message exceeds the time of the timer, judging that the resource allocation process has an abnormal overtime condition, and controlling to release the resource allocation request message and the resource allocation response message with the allocated flag bit.
5. The method of claim 1, further comprising: and identifying a terminal initiating the base station switching, distributing context for the terminal, and managing the process and the state of the terminal in the base station switching through the context of the terminal.
6. The method according to claim 5, wherein the terminal is identified, a context is allocated to the terminal, and a process and a state of the terminal during the base station handover are managed through the context of the terminal, specifically: identifying the terminal through the identifier of the terminal, allocating context for the terminal, and uniquely identifying the terminal and the network element when any network element starts the resource allocation process of the terminal;
and in each resource configuration process, determining the context of each terminal through the unique identifier, and managing the process and the state of the terminal in the base station switching process through the context of the terminal.
7. A device for controlling base station switching is characterized by comprising a parallel control module, wherein the parallel control module is used for identifying a switching stage of current base station switching, and controlling a resource configuration process of a network element to be executed in parallel after the network element receives a switching instruction in the switching stage.
8. The apparatus for controlling base station handover according to claim 7, wherein the parallel processing module is configured to control the resource configuration process of the network element to be executed in parallel, and specifically:
and the parallel processing module is used for controlling the network elements to be constructed in parallel and sending resource configuration request information.
9. The apparatus for controlling handover of base station according to claim 8, further comprising an exception handling module;
and the exception handling module is used for executing response overtime processing on the resource allocation process when the network element does not receive the resource allocation response information of all the resource allocation request information within the preset time.
10. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor, when executing the computer program, implements the method of controlling a handover of a base station of any of claims 1 to 6.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the data processing method of any one of claims 1 to 6.
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