CN114845320A - Processing method, processing system and base station system for changing failure of conditional primary and secondary cells - Google Patents
Processing method, processing system and base station system for changing failure of conditional primary and secondary cells Download PDFInfo
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Abstract
The disclosure provides a processing method, a processing system and a base station system for conditional primary and secondary cell change failure, and relates to the field of wireless communication. When the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information; analyzing a failure type based on the primary and secondary cell group failure information containing the conditional primary and secondary cell change failure indication information and combining with historical network information of the user equipment; and adjusting network configuration parameters according to the failure type. Thereby improving the success rate of changing the conditional primary and secondary cells.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a method, a system, and a base station system for processing a failure in changing a conditional primary cell and a conditional secondary cell.
Background
The technical field of wireless communication introduces a dual-connection technology, so that different base stations can be shunted through an X2/Xn interface, and the coverage capacity and the spectrum utilization rate of a network are improved. MR-DC (Multi-Radio Access Technology Dual Connectivity) Technology enables a UE (User Equipment) to simultaneously Access a MN (Master Node) and an SN (Secondary Node), and this Technology is widely applied in a 4G (4th Generation, fourth Generation) and 5G (5th Generation, fifth Generation) coexistence scenario.
An MR-DC related Conditional Primary and secondary Cell (PSCell) Change (Conditional PSCell Change) technique: and the MN configures the UE to perform a Conditional PSCell Change process, and the UE initiates an access and synchronization process with the SN according to the reference signal receiving quality of surrounding candidate SN cells and when a certain candidate SN cell meets a configuration threshold, without reporting a measurement report to the MN.
However, the inventors have found that a failure occurs when the user equipment makes a conditional primary and secondary cell change.
Disclosure of Invention
One technical problem to be solved by the embodiments of the present disclosure is: and the success rate of changing the conditional primary and secondary cells is improved.
Some embodiments of the present disclosure provide a method for processing a conditional primary and secondary cell change failure, including:
when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
analyzing a failure type based on the primary and secondary cell group failure information containing the conditional primary and secondary cell change failure indication information and combining with historical network information of the user equipment;
and adjusting network configuration parameters according to the failure type.
In some embodiments, for a primary node initiated conditional primary and secondary cell change procedure:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
the master node analyzes the failure type based on the master and auxiliary cell group failure information containing the conditional master and auxiliary cell change failure indication information and by combining the historical network information of the user equipment;
and the main node adjusts the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
the main node analyzes the failure type based on the main and auxiliary cell group failure information containing the conditional main and auxiliary cell change failure indication information and combined with the historical network information of the user equipment, and sends the failure type to the source auxiliary node;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sends the primary and secondary cell group failure information to the candidate secondary node;
the candidate auxiliary nodes analyze failure types based on the failure information of the main and auxiliary cell groups containing the condition main and auxiliary cell change failure indication information and by combining the historical network information of the user equipment, and directly send the failure types to the source auxiliary node or forward the failure types to the source auxiliary node through the main node;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sends the primary and secondary cell group failure information to a source secondary node;
the source auxiliary node analyzes the failure type based on the failure information of the main and auxiliary cell groups containing the condition main and auxiliary cell change failure indication information and by combining the historical network information of the user equipment;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
In some embodiments, the analysis failure types include:
when the main and auxiliary cell group failure information reported by the user equipment shows that the user equipment is not switched to any candidate target main and auxiliary cell beyond a first time threshold and the user equipment and the main and auxiliary cells of the source auxiliary node have wireless link connection failure, determining that the failure type is the failure caused by the condition that the change trigger time of the main and auxiliary cells is too late;
or when the reported failure information of the main and auxiliary cell groups of the user equipment shows that the user equipment is successfully switched to the target main and auxiliary cell and when the failure information is less than a second time threshold value, the user equipment and the target main and auxiliary cell have radio link connection failure, and the failure type is determined to be the failure caused by the condition that the change trigger time of the main and auxiliary cell is too early;
or when the main and auxiliary cell group failure information reported by the user equipment shows that the main and auxiliary cell in which the radio link connection failure occurs in the user equipment does not belong to the candidate target main and auxiliary cell configured for the user equipment by the network, determining that the failure type is the trigger condition and changing the main and auxiliary cell into the error condition main and auxiliary cell.
In some embodiments, adjusting the network configuration parameter according to the failure type comprises:
when the failure type is failure caused by too late triggering time change of the main and auxiliary cells, the signal quality threshold value for triggering the change of the main and auxiliary cells is reduced, wherein when the user equipment measures that the received signal strength of the candidate auxiliary node meets the signal quality threshold value, the user equipment is disconnected with the main and auxiliary cells of the source auxiliary node, and the candidate auxiliary node is used as a target auxiliary node to initiate access to the main and auxiliary cells of the target auxiliary node;
when the failure type is the failure caused by the fact that the change triggering time of the main and auxiliary cells is too early, the signal quality threshold value for triggering the change of the main and auxiliary cells is increased;
and when the failure type is that the primary and secondary cells are changed to the primary and secondary cells with the error condition, reconfiguring the candidate target primary and secondary cells.
In some embodiments, the failure type is added in a secondary cell change failure report, and the secondary cell change failure report further adds conditional primary and secondary cell change failure indication information to indicate that the report is a conditional primary and secondary cell change failure report.
In some embodiments, the primary node adds primary and secondary cell group failure information containing conditional primary and secondary cell change failure indication information in radio link connection failure indication signaling to the secondary node which last provided service for the user to indicate that the radio link connection failure is caused by the conditional primary and secondary cell change.
Some embodiments of the present disclosure provide a base station system, including: a memory; and a processor coupled to the memory, the processor configured to perform the method of handling conditional primary and secondary cell change failures of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a system for processing a conditional primary and secondary cell change failure, including: the base station system and the user equipment are configured to send secondary cell group failure information to a primary node in the base station system when the condition primary and secondary cell change fails, wherein the condition primary and secondary cell change failure indication information is added.
In some embodiments, for a primary node initiated conditional primary and secondary cell change procedure of a base station system:
a master node of a base station system configured to:
when the user equipment fails to change the conditional primary and secondary cells, receiving indication information of the failure of changing the conditional primary and secondary cells sent by the user equipment;
changing failure indication information based on the condition primary and secondary cells, and analyzing a failure type by combining historical network information of the user equipment;
and adjusting network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure of a base station system:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information; changing failure indication information based on the condition primary and secondary cells, analyzing failure types by combining historical network information of the user equipment, and sending the failure indication information to a source secondary node;
the source secondary node of the base station system is configured to: and adjusting network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure of a base station system:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the primary and secondary cell group failure information to a candidate secondary node;
the candidate secondary nodes of the base station system are configured to: based on the condition, the primary and secondary cells change failure indication information, and the failure type is analyzed by combining the historical network information of the user equipment, and the failure type is directly sent to a source secondary node or forwarded to the source secondary node through a primary node;
the source secondary node of the base station system is configured to: and adjusting network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the primary and secondary cell group failure information to a source secondary node;
the source secondary node of the base station system is configured to: changing failure indication information based on the condition primary and secondary cells, and analyzing a failure type by combining historical network information of the user equipment; and adjusting network configuration parameters according to the failure type.
Some embodiments of the present disclosure provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the method for handling conditional primary and secondary cell change failures of various embodiments.
The embodiment of the disclosure improves the success rate of changing the conditional primary and secondary cells by receiving the primary and secondary cell group failure information containing the conditional primary and secondary cell change failure indication information sent by the user equipment, analyzing the failure type by combining the historical network information of the user equipment, and adjusting the network configuration parameters according to the failure type.
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The drawings that are required to be used in the embodiments or the related art description will be briefly described below. The present disclosure can be understood more clearly from the following detailed description, which proceeds with reference to the accompanying drawings.
It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
FIG. 1 is a schematic diagram of MR-DC of some embodiments of the present disclosure.
Fig. 2 is a flowchart illustrating a method for handling conditional primary and secondary cell change failure according to some embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a primary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure.
Fig. 4 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure.
Fig. 5 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure.
Fig. 6 illustrates a flowchart of a method for handling a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure.
Fig. 7 illustrates a schematic diagram of a system for handling conditional primary and secondary cell change failures in some embodiments of the present disclosure.
Fig. 8 shows a schematic diagram of a base station system of some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Unless otherwise specified, "first", "second", and the like in the present disclosure are described to distinguish different objects, and are not intended to mean size, timing, or the like.
FIG. 1 is a schematic diagram of MR-DC of some embodiments of the present disclosure.
In MR-DC, DC is an operation mode in which a UE and two base stations are connected, and MR refers to multiple RATs (Radio Access Technology). For example, in one MR-DC technique, a UE is connected with one eNB (4G base station) and one gNB (5G base station), respectively.
In the MR-DC, a base station Node whose control plane is directly connected to the core network is called MN (Master Node), and a base station Node whose control plane is not directly connected to the core network is called SN (Secondary Node). As in fig. 1, an eNB directly connected to an EPC (Evolved Packet Core) is an MN, and a gNB not directly connected to the EPC is an SN.
The MR-DC includes various specific modes such as EN-DC, NE-DC, NR-DC, etc., according to different situations of two base stations to which the UE is connected. An EN-DC, LTE-NR DC, LTE (Long Term Evolution ) base station is a primary node and a 5G NG (New Radio, New air interface) base station is a secondary node. NE-DC, NR-LTE DC, NR base station is the primary node and LTE base station is the secondary node. The NR-DC, i.e. NR-NR DC, primary and secondary nodes are all NR base stations. SgNB represents an auxiliary node in EN-DC, and SN represents an auxiliary node in NE-DC or NR-DC.
Fig. 2 is a flowchart illustrating a method for handling conditional primary and secondary cell change failure according to some embodiments of the present disclosure. The method is performed by the base station system, e.g. by the MN, or by the SN, or by the MN and the SN. This will be described in more detail later in connection with the embodiments shown in fig. 3-6.
As shown in fig. 2, the method of this embodiment includes: step 210 — 230.
In step 210, when the ue fails to change the conditional primary and secondary cells, primary and secondary cell group failure information including indication information of the conditional primary and secondary cell change sent by the ue is received.
A Conditional primary and secondary cell Change (CPC) failure indication information (CPC failure indicator) is used to indicate that the Conditional primary and secondary cell Change failed.
The conditional primary and Secondary Cell change failure indication information is added to Secondary Cell Group (SCG) failure information (SCG failure information) to indicate that the conditional primary and Secondary Cell change failed.
In step 220, the failure type is analyzed based on the primary and secondary cell group failure information including the conditional primary and secondary cell change failure indication information in combination with the historical network information of the user equipment.
The primary and secondary cell group failure information reported by the ue includes, for example, the following information in addition to the CPC failure indicator.
CPC indicator (CPC indication) indicating that it is currently a Conditional PScell Change.
previoussccellid (source PSCell identification) indicates the source PSCell ID of the last PSCell change.
The failed PSCell ID (PSCell identity where RLF occurs) indicates a PSCell where RLF (radio link Failure) is detected or a PSCell ID where PSCell change Failure occurs.
timesonsource, the time the UE stays in the source PSCell.
timecondnaiure, the time elapsed from the last SN change initialization to the connection failure.
connectionFailureType, which indicates the current failure type, such as a radio link failure or PScell change failure, informs the MN what type of failure the current UE has occurred on the SN side.
The historical network information of the ue includes, for example, historical network information of the ue reported by the ue and historical network information of the ue stored in the network side. The historical network information of the user equipment includes, for example, information such as a Primary Cell ID, a source PSCell ID, and a target PSCell ID that the user equipment accesses.
In addition, the historical network information of the user equipment stored at the network side also comprises the context information of the user equipment. The context information of the ue stored at the network side includes, for example, two thresholds (threshold 1 and threshold 2) set by the Conditional PSCell Change, a time threshold (a first time threshold and a second time threshold) for analyzing the failure type, and information such as a candidate target primary and secondary cell configured by the network for the ue.
Threshold 1: the method is used for a base station side and is configured in advance by a network or set by the MN, the MN configures UE (user equipment) to measure cell reference signals and report a measurement report, the MN judges based on a threshold value 1 after receiving the measurement report, the MN sends a SgNB/SN Addition Request signaling to an SN meeting the threshold value 1, and a Conditional PScell change flow is started.
Threshold 2: the method is used for the UE side, the MN is configured to the UE through RRC information, the UE continuously monitors the reference signal receiving strength of the candidate SN, when the receiving signal strength of a certain candidate SN is larger than a threshold value 2, the candidate SN is taken as a target SN, the UE breaks the connection with a source SN, and an access and synchronization process is initiated to the target SN.
The failure types of the analysis according to the failure information of the main and auxiliary cell groups containing the condition main and auxiliary cell change failure indication information and the historical network information reported by the user equipment comprise the following conditions.
The network configures a first time threshold in advance for distinguishing the toilate PScell Change (i.e. the failure type is a failure caused by the time of the primary and secondary cell Change being Too late). When a PScell Change failure event occurs, if timetonsource information shows that the time of the UE residing in a source cell (a source cell, i.e., the primary and secondary cells of a source and secondary node) is greater than a first time threshold, and by judging whether the facedpscellld is equal to the source ID, it is determined whether the cell in which the connection of the UE fails is the source cell, and if the cell is the source cell, it is determined that the failure type is the toollate PScell Change. Therefore, when the historical network information of the user equipment shows that the user equipment is not switched to the target main and auxiliary cells beyond the first time threshold value and the wireless link connection failure occurs between the user equipment and the main and auxiliary cells of the source auxiliary node, the failure type is determined to be the failure caused by the fact that the change trigger time of the main and auxiliary cells is too late.
The network pre-configures a second time threshold for distinguishing the Too early type of the to early PScell Change (i.e., the failure type is a failure caused by Too early triggering time for changing the primary and secondary cells). When a PScell Change failure event occurs, if timeconenfailaire information shows that the time of the UE residing in the current cell is less than a second time threshold, and by judging whether the failed PScell ID is equal to the source ID, it is determined whether the cell in which the connection of the UE fails is a target cell (a target cell, i.e., a target primary and secondary cell), and if the cell is the target cell, it may be determined that the failure type is a topoearly PScell Change. Therefore, when the historical network information of the user equipment shows that the user equipment is successfully switched to the target main and auxiliary cells and the radio link connection failure occurs between the user equipment and the target main and auxiliary cells when the historical network information of the user equipment is smaller than the second time threshold, the failure type is determined to be the failure caused by the fact that the change trigger time of the main and auxiliary cells is too early.
By comparing whether the failed pscellid is equal to one of candidate target cells (candidate target cells, i.e., candidate target primary and secondary cells) configured for the UE in the UE context stored on the network side, if not, it is determined that the failure type is PScell Change to a wrong cell (i.e., the failure type is a trigger condition that the primary and secondary cells Change to an error condition primary and secondary cell). Therefore, when the historical network information of the user equipment shows that the main and auxiliary cells in which the wireless link connection failure occurs in the user equipment do not belong to the candidate target main and auxiliary cells configured for the user equipment by the network, the main and auxiliary cells with the failure type as the triggering condition are changed into the main and auxiliary cells with the error condition.
At step 230, network configuration parameters are adjusted according to the failure type.
Adjusting the network configuration parameters according to the failure type includes the following several cases.
When the failure type is a failure caused by the condition that the primary and secondary cell change trigger time is too late, the signal quality threshold (i.e., threshold 2) that triggers the primary and secondary cell change is adjusted down.
When the failure type is a failure caused by the condition that the change trigger time of the primary and secondary cells is too early, the signal quality threshold (i.e., threshold 2) for triggering the change of the primary and secondary cells is adjusted to be high.
And when the failure type is that the primary and secondary cells are changed to the primary and secondary cells with the error condition, reconfiguring the candidate target primary and secondary cells.
In the embodiment, the failure information of the main and auxiliary cell groups, which is sent by the user equipment and contains the indication information of the failure of the change of the conditional main and auxiliary cells, is received, the failure type is analyzed by combining the historical network information of the user equipment, and the network configuration parameters are adjusted according to the failure type, so that the success rate of the change of the conditional main and auxiliary cells is improved.
Fig. 3 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a primary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure. Also, the method is applicable to the above-described three types of failure processing.
As shown in fig. 3, the method of this embodiment includes: steps 31-312.
Step 31: and the MN configures the UE for measurement, and the UE measures surrounding cells and reports a measurement report to the MN.
Step 32: the MN determines whether to use a Conditional PScell Addition procedure for the UE according to the measurement report and an RRM (Radio Resource Management) state.
For the requirement of the current service of the UE on the reliability, if the requirement of the current service reliability of the UE is high, the Conditional PScell Addition process is selected to be used, otherwise, the Conditional PScell Addition process is not selected to be used.
Further, from the measurement report, it can be determined whether there is a candidate SN whose reference signal reception quality satisfies the condition. And if the measurement report reported by the UE indicates that the signal reception strength of the SN is greater than a certain threshold, the SN is a candidate SN. There may be one or more candidate SNs.
Step 33: and if the MN decides to use the Conditional PScell Addition flow, sending an auxiliary node Addition Request SgNB/SN Addition Request to each candidate SN with the reference signal receiving quality meeting the condition according to the measurement report.
There may be one or more candidate SNs satisfying the condition, and if there are a plurality of candidate SNs, such as candidate SN1 and candidate SN2 shown in the figure, SgNB/SN Addition Request may be sent to each of the plurality of candidate SNs.
Step 34: and the candidate SN performs access control and judges whether to accept the current auxiliary node adding Request SgNB/SN Addition Request.
As described above, the candidate SN may decide whether to accept the current secondary node addition request according to its own load or the like.
Step 35: and if the candidate SN receives the current auxiliary node adding Request SgNB/SN Addition Request, reserving corresponding resources, and feeding back an auxiliary node adding Request response SgNB/SN Addition Request acknowledgement to the MN.
Step 36: the MN issues configuration information of the Conditional PSCell Addition to the UE through an RRC Reconfiguration message, where the configuration information includes a Conditional PSCell Addition execution condition of the candidate SN cell and a configuration parameter of the candidate SN cell.
Step 37-38: the UE measures the candidate SN cells. When a certain candidate SN cell meets the Conditional PSCell Addition execution condition, taking the candidate SN cell as a target SN cell (namely a main and auxiliary cell of a target SN), and directly initiating random access and SN state synchronization to the target SN cell according to the configuration parameters of the target SN cell.
Step 39: RLF occurs, i.e., a conditional primary and secondary cell change failure event occurs for some reason (e.g., the reasons for the three failure types described above).
Step 310: the UE sends SCG failure information to the MN, wherein a CPC failure indicator is added to indicate that the change of the conditional primary and secondary cells fails.
Step 311: and the MN analyzes the failure type according to the failure information of the main and auxiliary cell groups containing the conditional main and auxiliary cell change failure indication information and the historical network information of the user equipment. See the description of the previous examples for specific analytical methods.
Step 312: and the MN adjusts the network configuration parameters according to the failure type. The specific adjustment method is described in the foregoing embodiment.
In the embodiment, the MN receives the primary and secondary cell group failure information including the conditional primary and secondary cell change failure indication information sent by the user equipment, analyzes the failure type in combination with the historical network information of the user equipment, and adjusts the network configuration parameters according to the failure type, thereby improving the success rate of the conditional primary and secondary cell change.
Fig. 4 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure. Also, the method is applicable to the above-described three types of failure processing.
As shown in fig. 4, the method of this embodiment includes: steps 41-413.
Step 41: and the source SN configures the UE for measurement, and the UE measures surrounding cells and reports a measurement report to the source SN. The source SN may determine whether there is a candidate SN whose reference signal reception strength satisfies a condition according to a measurement report of the UE. If the measurement report reported by the UE shows that the signal reception strength of the SN is greater than a certain threshold, the SN may be a candidate SN. There may be one or more candidate SNs.
Step 42: and if the source SN decides to use the conditional PScell Change for the UE, sending the candidate SN to the MN through the secondary node Change request SgNB/SN Change Required.
For the requirement of the current service of the UE on the reliability, if the requirement of the current service of the UE on the reliability is higher, the Conditional PScell Change process is selected to be used, otherwise, the Conditional PScell Change process can be selected not to be used.
Step 43: and the MN sends an auxiliary node Addition Request SgNB/SN Addition Request to the candidate SN through a Conditional PScell Addition flow.
Step 44: and the candidate SN performs access control and judges whether to accept the current auxiliary node adding Request SgNB/SN Addition Request.
As described above, the candidate SN may decide whether to accept the current secondary node addition request according to its own load or the like.
Step 45: and if the candidate SN receives the current auxiliary node adding Request SgNB/SN Addition Request, reserving corresponding resources, and feeding back an auxiliary node adding Request response SgNB/SN Addition Request acknowledgement to the MN.
Step 47-48: the UE measures the candidate SN cells. When a certain candidate SN cell meets the Conditional PSCell Addition execution condition, taking the candidate SN cell as a target SN cell (namely a main and auxiliary cell of a target SN), and directly initiating random access and SN state synchronization to the target SN cell according to the configuration parameters of the target SN cell.
Step 49: RLF occurs, i.e., a conditional primary and secondary cell change failure event occurs for some reason (e.g., the reasons for the three failure types described above).
Step 410: the UE sends SCG failure information to the MN, wherein a CPC failure indicator is added to indicate that the change of the conditional primary and secondary cells fails.
Step 411: and the MN analyzes the failure type according to the failure information of the main and auxiliary cell groups containing the conditional main and auxiliary cell change failure indication information and the historical network information of the user equipment. See the previous examples for specific analytical methods.
Step 412: the MN adds the failure type in a secondary cell change failure report and sends the failure type to the source SN, and a CPC failure indicator is also added in the secondary cell change failure report to indicate that the report is a report of conditional primary and secondary cell change failure.
Step 413: the source SN adjusts the network configuration parameters according to the failure type. See the previous examples for specific adjustment methods.
In the embodiment, the MN receives the primary and secondary cell group failure information including the conditional primary and secondary cell change failure indication information sent by the user equipment, analyzes the failure type in combination with the historical network information of the user equipment, and notifies the source SN, and the source SN adjusts the network configuration parameters according to the failure type, thereby improving the success rate of conditional primary and secondary cell change.
Fig. 5 is a flowchart illustrating a method for processing a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure. And the method is suitable for the failure caused by the fact that the failure type is that the change triggering time of the primary and secondary cells is too early and the change of the primary and secondary cells to the error condition primary and secondary cells is carried out under the condition that the failure type is triggering.
As shown in fig. 5, the method of this embodiment includes: steps 41-49 and 510-514.
Steps 41-49 are described in detail above.
Step 510: the UE sends SCG failure information to the MN, wherein a CPC failure indicator is added to indicate that the change of the conditional primary and secondary cells fails.
Step 511: the MN receives the SCG Failure information, and if the last secondary node serving the UE is the candidate SN1, the MN adds a CPC Failure indicator in a Radio Link Failure indication (Radio Link Failure) signaling to send to the candidate SN1, so as to indicate that the Radio Link Failure is caused by a conditional primary and secondary cell change.
Step 512: the candidate SN1 analyzes the failure type according to the primary-secondary cell group failure information including the conditional primary-secondary cell change failure indication information and the historical network information of the user equipment. See the previous examples for specific analytical methods.
Step 513: the candidate SN1 sends the failure type to the source SN in a secondary cell change failure report, which also adds a CPC failure indicator to indicate that it is a report of conditional primary and secondary cell change failure.
When no X2 or Xn interface is intercommunicated between the candidate SN1 and the source SN, the candidate SN1 sends the information to the MN, and the MN forwards the information to the source SN.
Step 514: the source SN adjusts the network configuration parameters according to the failure type. See the previous examples for specific adjustment methods.
In the above embodiment, when the auxiliary node of the previous serving UE is SN1, the MN analyzes the failure type by receiving the primary and secondary cell group failure information including the conditional primary and secondary cell change failure indication information sent by the user equipment and forwarding to SN1, the SN1 analyzes the failure type in combination with the historical network information of the user equipment and notifies the source SN, and the source SN adjusts the network configuration parameters according to the failure type, thereby improving the success rate of conditional primary and secondary cell change.
Fig. 6 illustrates a flowchart of a method for handling a conditional primary and secondary cell change failure for a secondary node-initiated conditional primary and secondary cell change procedure according to some embodiments of the present disclosure. And the method is suitable for processing the failure with the failure type of too late triggering time of the change of the primary and secondary cells.
As shown in fig. 6, the method of this embodiment includes: steps 41-49 and 610-614.
Steps 41-49 are described in detail above.
Step 610: the UE sends SCG failure information to the MN, wherein a CPC failure indicator is added to indicate that the change of the conditional primary and secondary cells fails.
Step 611: the MN receives the SCG Failure information, and when the auxiliary node of the last service UE is the source SN, the MN adds a CPC Failure indicator in a Radio Link Failure indication (Radio Link Failure) signaling and sends the CPC Failure indicator to the source SN so as to indicate that the Radio Link Failure is caused by the change of the conditional primary and auxiliary cells.
Step 612: the source SN analyzes the failure type according to the historical network information of the user equipment. See the previous examples for specific analytical methods.
Step 613: the source SN adjusts the network configuration parameters according to the failure type. See the previous examples for specific adjustment methods.
In the embodiment, when the auxiliary node of the last service UE is the source SN, the MN receives the primary and secondary cell group failure information including the conditional primary and secondary cell change failure indication information sent by the user equipment and forwards the primary and secondary cell group failure information to the source SN, and the source SN analyzes the failure type in combination with the historical network information of the user equipment and adjusts the network configuration parameters according to the failure type, thereby improving the success rate of changing the conditional primary and secondary cells.
Fig. 7 illustrates a schematic diagram of a system for handling conditional primary and secondary cell change failures in some embodiments of the present disclosure.
As shown in fig. 7, the processing system 700 of this embodiment includes a user equipment 710 and a base station system 720.
The user equipment 710 is configured to send secondary cell group failure information to the primary node in the base station system 710 when a conditional primary and secondary cell change fails, wherein conditional primary and secondary cell change failure indication information is added.
The base station system 720 is configured to execute the processing method for the conditional primary and secondary cell change failure in the embodiments.
In some embodiments, for a primary node initiated conditional primary and secondary cell change procedure of a base station system:
the master node 721 of the base station system 720 is configured to:
when the user equipment fails to change the conditional primary and secondary cells, receiving secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
analyzing a failure type by combining historical network information of the user equipment based on secondary cell group failure information containing conditional primary and secondary cell change failure indication information;
and adjusting the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure of a base station system:
the master node 721 of the base station system 720 is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information; analyzing failure types by combining historical network information of the user equipment based on secondary cell group failure information containing conditional primary and secondary cell change failure indication information, and sending the failure types to a source secondary node;
the source secondary node 722 of the base station system 720 is configured to: and adjusting the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure of a base station system:
the master node 721 of the base station system 720 is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the secondary cell group failure information to a candidate secondary node;
the candidate secondary nodes 723 of the base station system are configured to: analyzing the failure type by combining the historical network information of the user equipment based on the failure information of the auxiliary cell group including the conditional main and auxiliary cell change failure indication information, and directly sending the failure type to the source auxiliary node or forwarding the failure type to the source auxiliary node through the main node;
the source secondary node 722 of the base station system is configured to: and adjusting the network configuration parameters according to the failure type.
In some embodiments, for a source secondary node initiated conditional primary-secondary cell change procedure:
the master node 721 of the base station system 720 is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the secondary cell group failure information to a source secondary node;
the source secondary node 722 of the base station system 720 is configured to: analyzing a failure type by combining historical network information of the user equipment based on secondary cell group failure information containing conditional primary and secondary cell change failure indication information; and adjusting the network configuration parameters according to the failure type.
The conditional primary and secondary cell change failure indication information is added to the secondary cell group failure information to indicate that the conditional primary and secondary cell change failed.
The failure type is added in a secondary cell change failure report, and conditional primary and secondary cell change failure indication information is also added in the secondary cell change failure report to indicate that the report is a conditional primary and secondary cell change failure report.
The primary node adds the conditional primary and secondary cell change failure indication information in a radio link connection failure indication signaling and sends the information to the secondary node (such as a candidate secondary node or a source secondary node) which provides service for the user last time, so as to indicate that the radio link connection failure is caused by the conditional primary and secondary cell change.
Fig. 8 shows a schematic diagram of a base station system of some embodiments of the present disclosure.
As shown in fig. 8, the base station system 720 of this embodiment includes: a memory 821; and a processor 822 coupled to the memory, the processor 822 configured to execute the processing method for conditional primary and secondary cell change failure of the foregoing embodiments based on the instructions stored in the memory.
The memory 821 may include, for example, a system memory, a fixed non-volatile storage medium, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs.
Some embodiments of the present disclosure provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, performs the steps of a method of handling conditional primary and secondary cell change failures.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (16)
1. A method for processing conditional primary and secondary cell change failure is characterized by comprising the following steps:
when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
analyzing a failure type based on the primary and secondary cell group failure information containing the conditional primary and secondary cell change failure indication information and combining with historical network information of the user equipment;
and adjusting network configuration parameters according to the failure type.
2. The method of claim 1, comprising:
aiming at the condition primary and secondary cell change process initiated by the master node:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
the master node analyzes the failure type based on the master and auxiliary cell group failure information containing the conditional master and auxiliary cell change failure indication information and by combining the historical network information of the user equipment;
and the main node adjusts the network configuration parameters according to the failure type.
3. The method of claim 1, comprising:
and (3) changing the process aiming at the condition primary and secondary cells initiated by the source and secondary nodes:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information;
the main node analyzes the failure type based on the main and auxiliary cell group failure information containing the conditional main and auxiliary cell change failure indication information and combined with the historical network information of the user equipment, and sends the failure type to the source auxiliary node;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
4. The method of claim 1, comprising:
and (3) changing the process aiming at the condition primary and secondary cells initiated by the source and secondary nodes:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sends the primary and secondary cell group failure information to the candidate secondary node;
the candidate auxiliary nodes analyze failure types based on the failure information of the main and auxiliary cell groups containing the condition main and auxiliary cell change failure indication information and by combining the historical network information of the user equipment, and directly send the failure types to the source auxiliary node or forward the failure types to the source auxiliary node through the main node;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
5. The method of claim 1, comprising:
and (3) changing the process aiming at the condition primary and secondary cells initiated by the source and secondary nodes:
when the user equipment fails to change the conditional primary and secondary cells, the primary node receives primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sends the primary and secondary cell group failure information to a source secondary node;
the source auxiliary node analyzes the failure type based on the failure information of the main and auxiliary cell groups containing the condition main and auxiliary cell change failure indication information and by combining the historical network information of the user equipment;
and the source auxiliary node adjusts the network configuration parameters according to the failure type.
6. The method of any of claims 1-5, analyzing the failure type comprising:
when the main and auxiliary cell group failure information reported by the user equipment shows that the user equipment is not switched to any candidate target main and auxiliary cell beyond a first time threshold and the user equipment and the main and auxiliary cells of the source auxiliary node have wireless link connection failure, determining that the failure type is the failure caused by the condition that the change trigger time of the main and auxiliary cells is too late;
or when the reported failure information of the main and auxiliary cell groups of the user equipment shows that the user equipment is successfully switched to the target main and auxiliary cell and when the failure information is less than a second time threshold value, the user equipment and the target main and auxiliary cell have radio link connection failure, and the failure type is determined to be the failure caused by the condition that the change trigger time of the main and auxiliary cell is too early;
or when the main and auxiliary cell group failure information reported by the user equipment shows that the main and auxiliary cell in which the radio link connection failure occurs in the user equipment does not belong to the candidate target main and auxiliary cell configured for the user equipment by the network, determining that the failure type is the trigger condition and changing the main and auxiliary cell into the error condition main and auxiliary cell.
7. The method of any of claims 1-5, adjusting network configuration parameters according to the failure type comprising:
when the failure type is failure caused by too late triggering time change of the main and auxiliary cells, the signal quality threshold value for triggering the change of the main and auxiliary cells is reduced, wherein when the user equipment measures that the received signal strength of the candidate auxiliary node meets the signal quality threshold value, the user equipment is disconnected with the main and auxiliary cells of the source auxiliary node, and the candidate auxiliary node is used as a target auxiliary node to initiate access to the main and auxiliary cells of the target auxiliary node;
when the failure type is the failure caused by the fact that the change triggering time of the main and auxiliary cells is too early, the signal quality threshold value for triggering the change of the main and auxiliary cells is increased;
and when the failure type is that the primary and secondary cells are changed to the primary and secondary cells with the error condition, reconfiguring the candidate target primary and secondary cells.
8. The method according to any one of claims 3 to 4,
the failure type is added in a secondary cell change failure report, and conditional primary and secondary cell change failure indication information is also added in the secondary cell change failure report to indicate that the report is a conditional primary and secondary cell change failure report.
9. The method according to claim 4 or 5,
the master node adds the master and auxiliary cell group failure information containing the conditional master and auxiliary cell change failure indication information in a wireless link connection failure indication signaling and sends the information to the auxiliary node which provides service for the user last time so as to indicate that the wireless link connection failure is caused by the conditional master and auxiliary cell change.
10. A base station system, comprising:
a memory; and a processor coupled to the memory, the processor configured to perform the method of handling conditional primary and secondary cell change failure of any of claims 1-9 based on instructions stored in the memory.
11. A system for handling conditional primary and secondary cell change failure, comprising:
the base station system of claim 10, wherein the base station system,
and
and the user equipment is configured to send secondary cell group failure information to the primary node in the base station system when the condition primary and secondary cell change fails, wherein the condition primary and secondary cell change failure indication information is added.
12. The processing system of claim 11,
the method comprises the following steps of changing the process aiming at a condition primary cell and a condition secondary cell initiated by a master node of a base station system:
a master node of a base station system configured to:
when the user equipment fails to change the conditional primary and secondary cells, receiving indication information of the failure of changing the conditional primary and secondary cells sent by the user equipment;
changing failure indication information based on the condition primary and secondary cells, and analyzing a failure type by combining historical network information of the user equipment;
and adjusting network configuration parameters according to the failure type.
13. The processing system of claim 11,
aiming at a conditional primary and secondary cell change process initiated by a source and secondary node of a base station system:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information; changing failure indication information based on the condition primary and secondary cells, analyzing failure types by combining historical network information of the user equipment, and sending the failure indication information to a source secondary node;
the source secondary node of the base station system is configured to: and adjusting network configuration parameters according to the failure type.
14. The processing system of claim 11,
aiming at a conditional primary and secondary cell change process initiated by a source and secondary node of a base station system:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the primary and secondary cell group failure information to a candidate secondary node;
the candidate secondary nodes of the base station system are configured to: based on the condition, the primary and secondary cells change failure indication information, and the failure type is analyzed by combining the historical network information of the user equipment, and the failure type is directly sent to a source secondary node or forwarded to the source secondary node through a primary node;
the source secondary node of the base station system is configured to: and adjusting network configuration parameters according to the failure type.
15. The processing system of claim 11,
and (3) changing the process aiming at the condition primary and secondary cells initiated by the source and secondary nodes:
the master node of the base station system is configured to: when the user equipment fails to change the conditional primary and secondary cells, receiving primary and secondary cell group failure information which is sent by the user equipment and contains conditional primary and secondary cell change failure indication information, and sending the primary and secondary cell group failure information to a source secondary node;
the source secondary node of the base station system is configured to: changing failure indication information based on the condition primary and secondary cells, and analyzing a failure type by combining historical network information of the user equipment; and adjusting network configuration parameters according to the failure type.
16. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of handling conditional primary and secondary cell change failures of any of claims 1-9.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024031269A1 (en) * | 2022-08-08 | 2024-02-15 | Zte Corporation | Systems and methods for optimizing processes for changing primary cells in secondary cell groups |
| WO2024051375A1 (en) * | 2022-09-08 | 2024-03-14 | 中国电信股份有限公司 | Method and apparatus for optimizing primary-secondary-cell change, and device, medium and program product |
| WO2024093927A1 (en) * | 2022-11-03 | 2024-05-10 | 华为技术有限公司 | Information transmission method and apparatus |
| WO2024169517A1 (en) * | 2023-02-16 | 2024-08-22 | 华为技术有限公司 | Communication method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107690162A (en) * | 2016-08-03 | 2018-02-13 | 中兴通讯股份有限公司 | The processing method and processing device of cell connection failure |
| CN110366198A (en) * | 2018-03-26 | 2019-10-22 | 维沃移动通信有限公司 | A kind of detection method and terminal of secondary cell group change result |
| CN111866966A (en) * | 2019-04-29 | 2020-10-30 | 华为技术有限公司 | Communication method and communication device |
-
2021
- 2021-02-02 CN CN202110142464.6A patent/CN114845320A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107690162A (en) * | 2016-08-03 | 2018-02-13 | 中兴通讯股份有限公司 | The processing method and processing device of cell connection failure |
| CN110366198A (en) * | 2018-03-26 | 2019-10-22 | 维沃移动通信有限公司 | A kind of detection method and terminal of secondary cell group change result |
| CN111866966A (en) * | 2019-04-29 | 2020-10-30 | 华为技术有限公司 | Communication method and communication device |
Non-Patent Citations (3)
| Title |
|---|
| CHINA TELECOMMUNICATION: "R2-2100292 "Considerations on failure handling for CPAC"", 3GPP TSG_RAN\\WG2_RL2, no. 2, 14 January 2021 (2021-01-14), pages 1 - 3 * |
| NTT DOCOMO, INC.: "R2-2100779 "Discussion on conditional PSCell addition/change failure report"", 3GPP TSG_RAN\\WG2_RL2, no. 2, 15 January 2021 (2021-01-15), pages 2 - 3 * |
| OPPO: "R2-1915153 "Failure handling for conditional PScell change and addition"", 3GPP TSG_RAN\\WG2_RL2, no. 2, 8 November 2019 (2019-11-08), pages 1 - 3 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024031269A1 (en) * | 2022-08-08 | 2024-02-15 | Zte Corporation | Systems and methods for optimizing processes for changing primary cells in secondary cell groups |
| WO2024051375A1 (en) * | 2022-09-08 | 2024-03-14 | 中国电信股份有限公司 | Method and apparatus for optimizing primary-secondary-cell change, and device, medium and program product |
| WO2024093927A1 (en) * | 2022-11-03 | 2024-05-10 | 华为技术有限公司 | Information transmission method and apparatus |
| WO2024169517A1 (en) * | 2023-02-16 | 2024-08-22 | 华为技术有限公司 | Communication method and device |
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