CN114845319A - Network configuration optimization method and system based on primary and secondary cell change and user equipment - Google Patents
Network configuration optimization method and system based on primary and secondary cell change and user equipment Download PDFInfo
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Abstract
The disclosure provides a network configuration optimization method, a system and user equipment based on main and auxiliary cell change, and relates to the field of wireless communication. The method comprises the steps of receiving a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event and carries information and measurement data related to the main and auxiliary cell change, analyzing network abnormality reasons according to the successful main and auxiliary cell change report and historical network information triggered by the failure event of the main and auxiliary cell change of the plurality of user equipment, and adjusting Radio Resource Control (RRC) configuration of the network for triggering the main and auxiliary cell change according to the network abnormality reasons, so that the success rate of the main and auxiliary cell change is improved, and the robustness of the network is improved.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a network configuration optimization method, a network configuration optimization system, a base station system, and a user equipment based on changes in primary and secondary cells.
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, so that a UE (User Equipment) can simultaneously Access a cell of an MN (Master Node) and a cell of an SN (Secondary Node). The Cell of the MN is called Primary Cell (PCell). The SN Cell is called Primary secondary Cell (PSCell). The MR-DC technique is widely used in the 4G (fourth Generation) and 5G (5th Generation) coexistence scenarios.
However, the inventors have found that a failure occurs when the user equipment makes a primary and secondary cell change.
Disclosure of Invention
One technical problem to be solved by the embodiments of the present disclosure is: the success rate of the change of the primary and secondary cells is improved, and the robustness of the network is improved.
Some embodiments of the present disclosure provide a network configuration optimization method based on changes of a primary cell and a secondary cell, including:
receiving a successful primary and secondary cell change report which is sent by a plurality of user equipment when a primary and secondary cell change is close to a failure event, wherein the successful primary and secondary cell change report carries primary and secondary cell change related information and measurement data;
analyzing network abnormal reasons according to a successful main and auxiliary cell change report and historical network information triggered by a failure event of the main and auxiliary cell change of a plurality of user equipment;
and adjusting the Radio Resource Control (RRC) configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network.
In some embodiments, the primary-secondary cell change imminent failure event comprises:
when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running;
or, when receiving the RRC connection reconfiguration information, the ue triggers a beam failure recovery procedure to the source primary and secondary cells.
In some embodiments, successful primary and secondary cell change reporting comprises: one or more of a primary and secondary cell change type, radio link monitoring related information, beam failure detection related information, primary and secondary cell change related information.
In some embodiments, the radio link monitoring related information comprises: measurement data of RSRP, RSRQ, or SINR of a reference signal used by radio link monitoring, a radio link control retransmission counter, radio link monitoring-related timer;
the beam failure detection related information includes: an indicator and counter of beam failure detection, measurement data of RSRP, RSRQ, or SINR of reference signals used for beam failure detection;
the primary and secondary cell change related information includes: and when the primary and secondary cells are successfully changed, the measurement data of the configured reference signals, the timer related to the change of the primary and secondary cells and the measurement period indication are obtained.
In some embodiments, analyzing the network anomaly cause comprises:
when a successful primary and secondary cell change report triggered by a primary and secondary cell change approaching failure event exceeding a preset number is received from a certain area within a certain period, judging that the current RRC configuration level of the network triggering the primary and secondary cell change in the area is in a suboptimal state;
determining RRC configuration reference information of the region for triggering the change of the main and auxiliary cells according to the historical RRC configuration of the network in the region for triggering the change of the main and auxiliary cells, and determining that the reason of the network abnormality is that the current RRC configuration level of the network in the region for triggering the change of the main and auxiliary cells is higher or lower by comparing the current RRC configuration level of the network in the region for triggering the change of the main and auxiliary cells with the magnitude of the RRC configuration reference information.
In some embodiments, further comprising:
collecting failure information of a plurality of main and auxiliary cell groups reported in the region in the period,
according to the failure reason of the main and auxiliary cell groups corresponding to the failure information of each main and auxiliary cell group, counting and analyzing the failure reasons of the main and auxiliary cell groups in the region;
and if the network abnormal reason of the area is consistent with the failure reason of the main and auxiliary cell groups of the area, confirming the analyzed network abnormal reason.
In some embodiments, statistically analyzing the primary and secondary cell group failure reasons for the region comprises:
if the corresponding main and auxiliary cell group failure reason of the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the area in the period is that the RRC configuration triggering the change of the main and auxiliary cells is higher, determining the main and auxiliary cell group failure reason of the area as the current RRC configuration level of the network in the area triggering the change of the main and auxiliary cells is higher;
and if the main and auxiliary cell group failure reason corresponding to the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the area in the period is that the RRC configuration triggering the change of the main and auxiliary cells is low, determining the main and auxiliary cell group failure reason of the area as that the current RRC configuration level of the network triggering the change of the main and auxiliary cells in the area is low.
In some embodiments, adjusting the RRC configuration of the network that triggers the primary and secondary cell change comprises:
when the reason of the network abnormality is that the current RRC configuration level of the network is higher, the current RRC configuration of the network is reduced according to a certain step length;
and when the reason of the network abnormality is that the current RRC configuration level of the network is low, the current RRC configuration of the network is increased according to a certain step length.
In some embodiments, further comprising:
monitoring an adjustment effect after adjusting RRC configuration of a network triggering change of a primary cell and a secondary cell;
and if the forward adjustment effect is not monitored, adjusting the RRC configuration triggering the change of the main and auxiliary cells of the network according to the direction opposite to the previous adjustment.
In some embodiments, for a primary and secondary cell change procedure initiated by a primary node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a failure event when the main and auxiliary cells of the plurality of user equipment change;
and the main node adjusts the RRC configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network.
In some embodiments, for a source-secondary node-initiated primary-secondary cell change procedure:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node sends a successful main and auxiliary cell change report triggered by the main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
the source auxiliary node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a main and auxiliary cell change approaching failure event of a plurality of user equipment;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
In some embodiments, for a source-secondary node-initiated primary-secondary cell change procedure:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a failure event when the main and auxiliary cells of the plurality of user equipment change;
the main node sends a successful main and auxiliary cell change report and a network abnormal reason triggered by a main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
Some embodiments of the present disclosure provide a network configuration optimization method based on changes of a primary cell and a secondary cell, including:
the user equipment detects the occurrence of a failure event that the change of the primary cell and the secondary cell is close to;
the user equipment sends a successful primary and secondary cell change report triggered by a primary and secondary cell change imminent failure event to the network, wherein the successful primary and secondary cell change report carries information and measurement data related to the primary and secondary cell change, so that the network analyzes the network anomaly reason and adjusts RRC configuration of the network triggering the primary and secondary cell change.
In some embodiments, the primary-secondary cell change imminent failure event includes:
when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running;
or, when receiving the RRC connection reconfiguration information, the ue triggers a beam failure recovery procedure to the source primary and secondary cells.
In some embodiments, successful primary and secondary cell change reporting comprises: one or more of a primary and secondary cell change type, radio link monitoring related information, beam failure detection related information, and primary and secondary cell change related information.
In some embodiments, the RRC configuration triggering the primary-secondary cell change includes a first threshold and a second threshold for conditional primary-secondary cell changes, a third threshold for legacy primary-secondary cell changes;
in the conditional primary and secondary cell change process, if the received signal strength of the secondary node meets a first threshold value according to a measurement report reported by a user, the primary node sends a secondary node addition request to the secondary node meeting the first threshold value; if the received signal strength of the candidate auxiliary node measured by the user equipment meets a second 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; in a conventional primary and secondary cell change process, if the received signal strength of the secondary node meets a third threshold according to a measurement report reported by a user, the primary node sends a secondary node addition request to a target secondary node meeting the third threshold.
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 a network configuration optimization method based on primary and secondary cell changes based on instructions stored in the memory.
Some embodiments of the present disclosure provide a user equipment, including: a memory; and a processor coupled to the memory, the processor configured to perform a network configuration optimization method based on primary and secondary cell changes based on instructions stored in the memory.
Some embodiments of the present disclosure provide a network configuration optimization system based on changes of a primary cell and a secondary cell, including: the base station system comprises a main node and a source auxiliary node; and a user equipment.
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 for network configuration optimization based on primary and secondary cell changes.
The embodiment of the disclosure analyzes the cause of network abnormality by receiving a successful primary and secondary cell change report which is sent by a plurality of user equipment when a primary and secondary cell change is close to a failure event and carries information and measurement data related to the primary and secondary cell change, and according to the successful primary and secondary cell change report and historical network information triggered by the failure event of the primary and secondary cell change of the plurality of user equipment, and according to the cause of network abnormality, adjusts the Radio Resource Control (RRC) configuration of the network triggering the primary and secondary cell change, and improves the success rate of the primary and secondary cell change, thereby improving the robustness of the network.
Drawings
The drawings that will be used in the description of the embodiments or the related art 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 network configuration optimization method based on a change in primary and secondary cells according to some embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a network configuration optimization method based on a change of a primary cell and a secondary cell according to another embodiment of the present disclosure, where the change of the primary cell and the secondary cell is initiated by an MN.
Fig. 4 is a flowchart illustrating a network configuration optimization method based on changes in a primary cell and a secondary cell according to other embodiments of the present disclosure, where a primary cell and secondary cell change process source SN initiates the method.
Fig. 5 is a flowchart illustrating a network configuration optimization method based on changes in a primary cell and a secondary cell according to other embodiments of the present disclosure, where a primary cell and secondary cell change process source SN initiates the method.
Fig. 6 illustrates a schematic diagram of a network configuration optimization system based on primary and secondary cell changes in some embodiments of the present disclosure.
Fig. 7 shows a schematic diagram of a base station system of some embodiments of the present disclosure.
Fig. 8 shows a schematic diagram of a user equipment 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 (multiple-Radio Access Technology Dual Connectivity), 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 NR (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 network configuration optimization method based on a change in primary and secondary cells 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. 3-5.
As shown in fig. 2, the method of this embodiment includes: step 210 — 230.
In step 210, a Successful primary and secondary cell Change report (Successful PSCell Change report) sent by multiple user equipments when a primary and secondary cell Change is imminent to fail is received, wherein the Successful primary and secondary cell Change report carries information and measurement data related to the primary and secondary cell Change.
Although the change of the primary and secondary cells of the user equipment has been successful, if the user equipment detects the occurrence of a primary and secondary cell change imminent failure event in the primary and secondary cell change process, which indicates that the user equipment is in a primary and secondary cell change imminent failure scenario (i.e., the primary and secondary cell change failure is about to occur but the radio link connection failure has not yet been caused), the user equipment sends a successful primary and secondary cell change report to the MN of the base station system.
The primary and secondary cell change imminent failure event includes, for example: when RRC (Radio Resource Control) connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running (When T310 in the source PScell wave running high receiving the RRCConnectionReconfiguration); or, When receiving the RRC connection reconfiguration information, the UE triggers a Beam Failure Recovery (BFR) procedure (When BFR procedure waves triggered by the UE over the resources of the source PScell where the RRC connection reconfiguration received) to the source primary and secondary cells.
Successful primary and secondary cell change reporting includes, for example: one or more of a primary and secondary cell change type, radio link monitoring related information, beam failure detection related information, and primary and secondary cell change related information. So that the base station system knows the quality or state of the radio link in the scenario that the primary and secondary cell change is about to fail according to the successful primary and secondary cell change report.
The primary and secondary cell Change type (PScell Change type) includes, for example, a conventional primary and secondary cell Change (normal PScell Change), a Conditional primary and secondary cell Change (Conditional PScell Change), a primary and secondary cell Change initiated by the MN (MN-initiated PScell Change), a primary and secondary cell Change initiated by the SN (SN-initiated PScell Change), and the like.
Radio Link Monitor (RLM) related information (RLM related information) includes: a timer (T310, T312) related to the Radio Link monitoring, a Radio Link Control retransmission counter (Radio Link Control retransmission counter), RSRP (Reference Signal Receiving Power) of a Reference Signal used for the Radio Link monitoring, RSRQ (Reference Signal Receiving Quality), or measurement data (measured quantities of Reference Signal used for RLM in terms of RSRP, SINR) of a Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio).
The Beam Failure Detection (BFD) related information (BFD format) includes: indicators and counters for beam failure detection (e.g., Qin and Qout indications), RSRP, RSRQ, or SINR Measurements of reference signals used for beam failure detection (Measurements of reference signals used in BFD in metrics of RSRP, RSRQ, SINR).
The primary and secondary cell change related information (PScell change related information) includes: measurement data (such as SSB beam measurement data and CSI-RS measurement data) for the configured reference signals when the primary and secondary cells are successfully changed, a timer related to the primary and secondary cell change (such as T304), and a measurement period indication (i.e., when the PScell change is triggered, or the PScell change execution is finished, or the PScell change execution is followed by collecting the measurement values immediately).
The timer T310 will be described. When the UE performs radio link detection, when the number of continuously received downlink out-of-sync indications (out of sync) is equal to the counter N310, the start of the timer T310 is triggered. If the number of the continuously received downlink synchronization indicators (in sync) is equal to N311 in the process of the duration of T310, the timer of T310 is stopped to indicate that the link synchronization is recovered. If the timer T310 times out, it is considered that a radio link failure is detected, and the RRC connection reestablishment procedure will be triggered. The larger the timer value of T310, the longer the down-going out-of-step time.
The timer T312 will be explained. The timer T312 is the time to wait for the synchronization indication after the dedicated physical channel DPCH is established. If N312 synchronization indications are received before the expiration of T312, the dedicated channel is considered to be successfully established. If the dedicated physical channel is not successfully established after T312 times out, the dedicated channel is considered to be failed to be established. The larger the timing value of T312 is, the longer the time for waiting for the synchronization indication after the dedicated physical channel DPCH is established becomes.
The timer T304 will be explained. The ue starts a timer T304 when receiving an RRC connection reconfiguration message with mobility control info, and stops the timer T304 after completing random access of a new cell. The larger the timer value of T304, the longer the time for RRC connection reconfiguration will be described.
Description about beam failure recovery. When the base station and the terminal communicate with each other by using the beamforming technology, the better the beam alignment between the base station and the terminal is, the greater the signal gain provided by the beam is. Due to the influence of factors such as sudden fluctuation of a channel, unexpected obstacle interruption, terminal rotation and the like, beam misalignment between a terminal and a base station may be caused, and beam failure occurs. The terminal needs to monitor the quality of the beam signals, and when the quality of the beam signals is poor, the beam failure is determined. When a beam failure occurs in a terminal, a physical layer of the terminal indicates the beam failure to a Media Access Control (MAC) layer, the MAC layer triggers a beam failure recovery, and after the terminal executes a beam failure recovery process, a base station configures a new beam for the terminal, wherein the beam failure recovery process is executed based on a random Access process.
At step 220, the network anomaly cause is analyzed according to the successful primary and secondary cell change report triggered by the near failure event and the historical network information of the primary and secondary cells of the plurality of user equipments.
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 history network information of the user equipment includes information such as a PCell (Primary Cell) ID, a source PSCell ID, and a target PSCell ID that the user equipment accesses, for example. 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 user equipment stored at the network side includes, for example, RRC configuration that triggers the change of the primary and secondary cells.
The RRC configuration triggering the change of the primary and secondary cells comprises a first threshold value and a second threshold value for the condition of the change of the primary and secondary cells and a third threshold value for the change of the traditional primary and secondary cells. In the conditional primary and secondary cell change process, if the received signal strength of the secondary node meets a first threshold value according to a measurement report reported by a user, the primary node sends a secondary node addition request to the secondary node meeting the first threshold value; if the received signal strength of the candidate auxiliary node measured by the user equipment meets a second 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; in a conventional primary and secondary cell change process, if the received signal strength of the secondary node meets a third threshold according to a measurement report reported by a user, the primary node sends a secondary node addition request to a target secondary node meeting the third threshold.
In some embodiments, analyzing the network anomaly cause according to the successful primary and secondary cell change report and the historical network information triggered by the primary and secondary cell change imminent failure event of the plurality of user equipments comprises:
when a successful primary and secondary cell change report triggered by a primary and secondary cell change approaching failure event exceeding a preset number is received from a certain area within a certain period, judging that the current RRC configuration level of the network triggering the primary and secondary cell change in the area is in a suboptimal state;
determining RRC configuration reference information of the area for triggering the change of the main and auxiliary cells according to the historical RRC configuration of the network in the area for triggering the change of the main and auxiliary cells, and determining that the reason of the network abnormality is that the current RRC configuration level of the network in the area for triggering the change of the main and auxiliary cells is higher or lower by comparing the current RRC configuration level of the network in the area for triggering the change of the main and auxiliary cells with the magnitude of the RRC configuration reference information.
The average information of the historical RRC configuration of the network in the area triggering the change of the primary and secondary cells may be used as the RRC configuration reference information of the area triggering the change of the primary and secondary cells. The RRC configuration reference information may also employ, for example, manually set success experience information. In addition, the network anomaly reason can be determined by combining the technologies of artificial intelligence, machine learning and the like.
If the current RRC configuration level of the network in the area triggering the change of the main and auxiliary cells is greater than the RRC configuration reference information and exceeds a certain range, determining that the reason of the network abnormality is that the current RRC configuration level of the network in the area triggering the change of the main and auxiliary cells is higher; and if the current RRC configuration level of the network in the area triggering the change of the primary and secondary cells is less than the RRC configuration reference information and exceeds a certain range, determining that the reason of the network abnormality is that the current RRC configuration level of the network in the area triggering the change of the primary and secondary cells is low.
In addition, the analyzed network abnormal reason can be confirmed by combining the failure information of the main cell group and the auxiliary cell group, so that the accuracy of the analyzed network abnormal reason is further improved.
The network abnormal reasons combined with the primary and secondary cell group failure information confirmation analysis comprise: collecting failure information of a plurality of main and auxiliary cell groups reported in a region in a period, and counting the failure reasons of the main and auxiliary cell groups in an analysis region according to the failure reasons of the main and auxiliary cell groups corresponding to the failure information of each main and auxiliary cell group; and if the network abnormal reason of the area is consistent with the failure reason of the main and auxiliary cell groups of the area, confirming the analyzed network abnormal reason.
The reasons for failure of the primary and secondary cell groups in the statistical analysis area include: if the main and auxiliary cell group failure reason corresponding to the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the region in the period is that the RRC configuration triggering the change of the main and auxiliary cells is higher, determining the main and auxiliary cell group failure reason of the region as the current RRC configuration level triggering the change of the main and auxiliary cells of the network in the region is higher; and if the main and auxiliary cell group failure reason corresponding to the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the region in the period is that the RRC configuration triggering the change of the main and auxiliary cells is low, determining the main and auxiliary cell group failure reason of the region as the current RRC configuration level triggering the change of the main and auxiliary cells of the network in the region is low.
Determining the corresponding primary and secondary cell group failure reason according to the primary and secondary cell group failure information includes, for example: when the failure information of the main and auxiliary cell group 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 wireless link connection failure occurs between the user equipment and the main and auxiliary cell of the source auxiliary node, determining that the failure type is the failure caused by the fact that the change trigger time of the main and auxiliary cell is too late, and determining that the reason of the failure of the main and auxiliary cell group is that the RRC configuration (such as a second threshold) for triggering the change of the main and auxiliary cell is higher. And when the reported primary and secondary cell group failure information of the user equipment shows that the user equipment is successfully switched to the target primary and secondary cells and the radio link connection failure occurs between the user equipment and the target primary and secondary cells when the reported primary and secondary cell group failure information is smaller than a second time threshold, determining that the failure type is the failure caused by too early triggering time for changing the primary and secondary cells, and determining that the reason for the primary and secondary cell group failure is that the RRC configuration (such as the second threshold) for triggering the change of the primary and secondary cells is lower.
In step 230, the RRC configuration of the network triggering the change of the primary and secondary cells is adjusted according to the cause of the network anomaly.
Adjusting the RRC configuration of the network that triggers the primary and secondary cell change includes:
when the reason of the network abnormality is that the current RRC configuration level of the network is higher, the current RRC configuration of the network is reduced according to a certain step length;
and when the reason of the network abnormality is that the current RRC configuration level of the network is low, the current RRC configuration of the network is increased according to a certain step length.
In addition, after the RRC configuration of the network triggering the change of the primary and secondary cells is adjusted, the adjusting effect is monitored; and if the forward adjustment effect is not monitored, adjusting the RRC configuration triggering the change of the main and auxiliary cells of the network according to the direction opposite to the previous adjustment. The positive adjustment effect includes, for example, that the number of successful primary and secondary cell change reports triggered by the failure event is reduced. If the previous adjustment direction was to turn the RRC configuration down, the opposite direction to the previous adjustment is to turn the RRC configuration up.
The method comprises the steps of receiving a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event and carries information and measurement data related to the main and auxiliary cell change, analyzing network abnormality reasons according to the successful main and auxiliary cell change report and historical network information triggered by the failure event of the main and auxiliary cell change of the plurality of user equipment, and adjusting Radio Resource Control (RRC) configuration of the network for triggering the main and auxiliary cell change according to the network abnormality reasons, so that the success rate of the main and auxiliary cell change is improved, and the robustness of the network is improved.
The signaling transmitted between base stations and between CU/DU in the base station is designed as follows:
Xn/X2 interface: and carrying a subsequent PScell Change report by using an Access And Mobility Indication (Access And Mobility Indication) message, wherein the delivered report content is consistent with the report content reported by the UE.
F1 interface: and using the Access And Mobility Indication message to carry the subsequent PScell Change report, wherein the transmitted report content is consistent with the report content reported by the UE.
Fig. 3 is a flowchart illustrating a network configuration optimization method based on a change of a primary cell and a secondary cell according to another embodiment of the present disclosure, where the change of the primary cell and the secondary cell is initiated by an MN.
As shown in fig. 3, the method of this embodiment includes: steps 31-34.
Step 31: the UE detects failure signs in a successful PScell change procedure, for example, the UE detects the following two primary and secondary cell change imminent failure events: 1) when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running; 2) when receiving the RRC connection reconfiguration information, the user equipment triggers a BFR program to the source main and auxiliary cells.
Step 32: the UE reports Successful primary and secondary cell Change report success serving PSCell Change report to the MN, where the report carries information and measurement data related to the primary and secondary cell Change, which is specifically referred to above.
Step 33: and the MN analyzes the network abnormal reason according to the successful main and auxiliary cell change report and the historical network information triggered by the adjacent failure event of the main and auxiliary cell change of the plurality of UEs. The analytical methods were as described above.
Step 34: and the MN adjusts the RRC configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network. The adjustment method is as described above.
The MN receives a successful main and auxiliary cell change report sent by a plurality of user equipment when a main and auxiliary cell change proximity failure event occurs, analyzes the network abnormity reason according to the successful main and auxiliary cell change report triggered by the main and auxiliary cell change proximity failure event of the plurality of user equipment and historical network information, and adjusts the RRC configuration of the network triggering the main and auxiliary cell change according to the network abnormity reason, so that the success rate of the main and auxiliary cell change is improved, and the robustness of the network is improved.
Fig. 4 is a flowchart illustrating a network configuration optimization method based on changes in a primary cell and a secondary cell according to other embodiments of the present disclosure, where a primary cell and secondary cell change process source SN initiates the method.
As shown in fig. 4, the method of this embodiment includes: steps 41-45.
Step 41: the UE detects failure signs in a successful PScell change procedure, for example, the UE detects the following two primary and secondary cell change imminent failure events: 1) when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running; 2) when receiving the RRC connection reconfiguration information, the user equipment triggers a BFR program to the source main and auxiliary cells.
Step 42: the UE reports a Successful primary and secondary cell Change report serving PSCell Change report to the MN, where the report carries information and measurement data related to the Change of the primary and secondary cells, which is specifically referred to above.
Step 43: and the MN sends a successful primary And secondary cell change report triggered by the primary And secondary cell change imminent failure event to the source SN through an Access And Mobility Indication message Access And Mobility Indication.
Step 44: and the source SN analyzes the network abnormity reason according to the successful main and auxiliary cell change report and the historical network information triggered by the failure event of the main and auxiliary cell change of the plurality of user equipment. The analytical methods were as described above.
Step 45: and the source SN adjusts the RRC configuration of the network triggering the change of the primary and secondary cells according to the abnormal reason of the network. The adjustment method is as described above.
MN receives successful main and auxiliary cell change reports sent by a plurality of user equipment when the main and auxiliary cell change is close to the occurrence of a failure event, and sends the successful main and auxiliary cell change reports and historical network information to the source SN, wherein the source SN analyzes the reasons for network abnormality according to the successful main and auxiliary cell change reports and historical network information triggered by the main and auxiliary cell change close to the failure event of the plurality of user equipment, and adjusts RRC configuration of the network for triggering the main and auxiliary cell change according to the reasons for network abnormality, so that the success rate of the main and auxiliary cell change is improved, and the robustness of the network is improved.
Fig. 5 is a flowchart illustrating a network configuration optimization method based on changes in a primary cell and a secondary cell according to other embodiments of the present disclosure, where a primary cell and secondary cell change process source SN initiates the method.
As shown in fig. 5, the method of this embodiment includes: steps 51-55.
Step 51: the UE detects failure signs in a successful PScell change procedure, for example, the UE detects the following two primary and secondary cell change imminent failure events: 1) when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running; 2) when receiving the RRC connection reconfiguration information, the user equipment triggers a BFR program to the source main and auxiliary cells.
Step 52: the UE reports Successful primary and secondary cell Change report success serving PSCell Change report to the MN, where the report carries information and measurement data related to the primary and secondary cell Change, which is specifically referred to above.
Step 53: and the MN analyzes the network abnormal reason according to the successful main and auxiliary cell change report and the historical network information triggered by the failure event of the main and auxiliary cell change of the plurality of user equipment. The analytical methods were as described above.
Step 54: and the MN sends a successful primary and secondary cell change report and a network abnormal reason triggered by the primary and secondary cell change impending failure event to the source SN through an access and mobility indication message.
Step 55: and the source SN analyzes the network abnormity reason according to the successful main and auxiliary cell change report and the historical network information triggered by the failure event of the main and auxiliary cell change of the plurality of user equipment. The analytical methods were as described above.
It should be noted that, either or both of the MN analysis of the cause of the network anomaly and the source SN analysis of the cause of the network anomaly may be performed.
Step 56: and the source SN adjusts the RRC configuration of the network triggering the change of the primary and secondary cells according to the abnormal reason of the network. The adjustment method is as described above.
MN receives a successful main and auxiliary cell change report sent by a plurality of user equipment when a main and auxiliary cell change proximity failure event occurs, analyzes the network abnormal reason according to the successful main and auxiliary cell change report triggered by the main and auxiliary cell change proximity failure event of the plurality of user equipment and historical network information, sends the successful main and auxiliary cell change report together with the network abnormal reason to a source SN, and the source SN adjusts RRC configuration of the network triggering the main and auxiliary cell change according to the network abnormal reason, improves the success rate of the main and auxiliary cell change, and accordingly improves the robustness of the network.
Fig. 6 illustrates a schematic diagram of a network configuration optimization system based on primary and secondary cell changes in some embodiments of the present disclosure.
As shown in fig. 6, the optimization system 600 of this embodiment includes a user equipment 610 and a base station system 620.
The ue 610 is configured to detect occurrence of a primary and secondary cell change imminent failure event, and send a successful primary and secondary cell change report triggered by the primary and secondary cell change imminent failure event to the network, where the successful primary and secondary cell change report carries information and measurement data related to the primary and secondary cell change, so that the network analyzes a cause of a network anomaly, and adjusts RRC configuration of the network that triggers the primary and secondary cell change.
And a base station system 620 configured to perform the network configuration optimization method based on the change of the primary and secondary cells according to the embodiments. The base station system comprises a main node and a source auxiliary node.
Aiming at a main and auxiliary cell change process initiated by a main node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to the successful main and auxiliary cell change report and the historical network information which are triggered by the near failure event of the main and auxiliary cell change of the plurality of user equipment;
and the main node adjusts the RRC configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network.
Aiming at a main and auxiliary cell change process initiated by a source auxiliary node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node sends a successful main and auxiliary cell change report triggered by the main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
the source auxiliary node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a main and auxiliary cell change approaching failure event of a plurality of user equipment;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
Aiming at a main and auxiliary cell change process initiated by a source auxiliary node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a failure event when the main and auxiliary cells of the plurality of user equipment change;
the main node sends a successful main and auxiliary cell change report and a network abnormal reason triggered by a main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
Fig. 7 shows a schematic diagram of a base station system of some embodiments of the present disclosure.
As shown in fig. 7, the base station system 620 of this embodiment includes: a memory 621; and a processor 622 coupled to the memory, the processor 622 configured to execute a network configuration optimization method based on the primary and secondary cell changes based on instructions stored in the memory.
For example, a successful primary and secondary cell change report sent by multiple user equipments when a primary and secondary cell change is near to a failure event is received, where the successful primary and secondary cell change report carries information and measurement data related to the primary and secondary cell change; analyzing network abnormal reasons according to a successful main and auxiliary cell change report and historical network information triggered by a failure event of the main and auxiliary cell change of a plurality of user equipment; and adjusting the RRC configuration of the network triggering the change of the primary and secondary cells according to the abnormal reason of the network.
The memory 621 may include, for example, a system memory, a fixed nonvolatile 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.
Fig. 8 shows a schematic diagram of a user equipment of some embodiments of the present disclosure.
As shown in fig. 8, the user equipment 610 of this embodiment includes: a memory 611; and a processor 612 coupled to the memory, the processor 612 configured to perform a network configuration optimization method based on the primary and secondary cell change based on the instructions stored in the memory.
For example, the ue detects that a primary-secondary cell change is imminent to a failure event, and sends a successful primary-secondary cell change report triggered by the primary-secondary cell change imminent failure event to the network, where the successful primary-secondary cell change report carries information and measurement data related to the primary-secondary cell change, so that the network analyzes a cause of a network anomaly, and adjusts RRC configuration of the network that triggers the primary-secondary cell change.
The memory 611 may include, for example, a system memory, a fixed nonvolatile 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 also 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 for network configuration optimization based on primary and secondary cell changes.
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 meant to be illustrative of the preferred embodiments of the present disclosure and not to be taken as limiting the disclosure, and any modifications, equivalents, improvements and the like that are within the spirit and scope of the present disclosure are intended to be included therein.
Claims (20)
1. A network configuration optimization method based on primary and secondary cell change is characterized by comprising the following steps:
receiving a successful primary and secondary cell change report which is sent by a plurality of user equipment when a primary and secondary cell change is close to a failure event, wherein the successful primary and secondary cell change report carries primary and secondary cell change related information and measurement data;
analyzing network abnormal reasons according to a successful main and auxiliary cell change report and historical network information triggered by a failure event of the main and auxiliary cell change of a plurality of user equipment;
and adjusting the Radio Resource Control (RRC) configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network.
2. The method of claim 1, wherein the primary and secondary cell change imminent failure event comprises:
when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running;
or, when receiving the RRC connection reconfiguration information, the ue triggers a beam failure recovery procedure to the source primary and secondary cells.
3. The method of claim 1, wherein successful primary and secondary cell change reporting comprises: one or more of a primary and secondary cell change type, radio link monitoring related information, beam failure detection related information, and primary and secondary cell change related information.
4. The method of claim 3,
the radio link monitoring related information comprises: measurement data of RSRP, RSRQ, or SINR of a reference signal used by radio link monitoring, a radio link control retransmission counter, radio link monitoring-related timer;
the beam failure detection related information includes: an indicator and counter of beam failure detection, measurement data of RSRP, RSRQ, or SINR of reference signals used for beam failure detection;
the primary and secondary cell change related information includes: and when the primary and secondary cells are successfully changed, the measurement data of the configured reference signals, the timer related to the change of the primary and secondary cells and the measurement period indication are obtained.
5. The method of claim 1, wherein analyzing network anomaly causes comprises:
when a successful primary and secondary cell change report triggered by a primary and secondary cell change approaching failure event exceeding a preset number is received from a certain area within a certain period, judging that the current RRC configuration level of the network triggering the primary and secondary cell change in the area is in a suboptimal state;
determining RRC configuration reference information of the region for triggering the change of the main and auxiliary cells according to the historical RRC configuration of the network in the region for triggering the change of the main and auxiliary cells, and determining that the reason of the network abnormality is that the current RRC configuration level of the network in the region for triggering the change of the main and auxiliary cells is higher or lower by comparing the current RRC configuration level of the network in the region for triggering the change of the main and auxiliary cells with the magnitude of the RRC configuration reference information.
6. The method of claim 5, further comprising:
collecting failure information of a plurality of main and auxiliary cell groups reported in the region in the period,
according to the failure reason of the main and auxiliary cell groups corresponding to the failure information of each main and auxiliary cell group, counting and analyzing the failure reasons of the main and auxiliary cell groups in the region;
and if the network abnormal reason of the area is consistent with the failure reason of the main and auxiliary cell groups of the area, confirming the analyzed network abnormal reason.
7. The method of claim 6, wherein statistically analyzing the cause of failure in the primary and secondary cell groups of the region comprises:
if the corresponding main and auxiliary cell group failure reason of the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the area in the period is that the RRC configuration triggering the change of the main and auxiliary cells is higher, determining the main and auxiliary cell group failure reason of the area as the current RRC configuration level of the network in the area triggering the change of the main and auxiliary cells is higher;
and if the main and auxiliary cell group failure reason corresponding to the main and auxiliary cell group failure information exceeding the preset number or the preset proportion in the area in the period is that the RRC configuration triggering the change of the main and auxiliary cells is low, determining the main and auxiliary cell group failure reason of the area as that the current RRC configuration level of the network triggering the change of the main and auxiliary cells in the area is low.
8. The method of any of claims 1-7, wherein adjusting the RRC configuration of the network that triggers the primary-secondary cell change comprises:
when the reason of the network abnormality is that the current RRC configuration level of the network is higher, the current RRC configuration of the network is reduced according to a certain step length;
and when the reason of the network abnormality is that the current RRC configuration level of the network is low, the current RRC configuration of the network is increased according to a certain step length.
9. The method of any one of claims 1-7, further comprising:
monitoring an adjustment effect after adjusting RRC configuration of a network triggering change of a primary cell and a secondary cell;
and if the forward adjustment effect is not monitored, adjusting the RRC configuration triggering the change of the main and auxiliary cells of the network according to the direction opposite to the previous adjustment.
10. The method according to any one of claims 1-7, comprising:
aiming at a main and auxiliary cell change process initiated by a main node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a failure event when the main and auxiliary cells of the plurality of user equipment change;
and the main node adjusts the RRC configuration of the network triggering the change of the main cell and the auxiliary cell according to the abnormal reason of the network.
11. The method according to any one of claims 1-5, comprising:
aiming at a main and auxiliary cell change process initiated by a source auxiliary node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node sends a successful main and auxiliary cell change report triggered by the main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
the source auxiliary node analyzes the network abnormity reasons according to the successful main and auxiliary cell change report and the historical network information which are triggered by the near failure event of the main and auxiliary cell change of the plurality of user equipment;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
12. The method according to any one of claims 1-5, comprising:
aiming at a main and auxiliary cell change process initiated by a source auxiliary node:
the method comprises the steps that a main node receives a successful main and auxiliary cell change report which is sent by a plurality of user equipment when a main and auxiliary cell change is close to a failure event, wherein the successful main and auxiliary cell change report carries information and measurement data related to the main and auxiliary cell change;
the main node analyzes the network abnormal reason according to a successful main and auxiliary cell change report and historical network information triggered by a failure event when the main and auxiliary cells of the plurality of user equipment change;
the main node sends a successful main and auxiliary cell change report and a network abnormal reason triggered by a main and auxiliary cell change approaching failure event to the source auxiliary node through an access and mobility indication message;
and the source auxiliary node adjusts the RRC configuration of the network triggering the change of the main and auxiliary cells according to the abnormal reason of the network.
13. A network configuration optimization method based on primary and secondary cell change is characterized by comprising the following steps:
the user equipment detects the occurrence of a failure event that the change of the primary cell and the secondary cell is close to;
the user equipment sends a successful primary and secondary cell change report triggered by a primary and secondary cell change imminent failure event to the network, wherein the successful primary and secondary cell change report carries information and measurement data related to the primary and secondary cell change, so that the network analyzes the network anomaly reason and adjusts RRC configuration of the network triggering the primary and secondary cell change.
14. The method of claim 13, wherein the primary and secondary cell change imminent failure event comprises:
when RRC connection reconfiguration information is received, a timer T310 in the source primary and secondary cell is running;
or, when receiving the RRC connection reconfiguration information, the ue triggers a beam failure recovery procedure to the source primary and secondary cells.
15. The method of claim 13, wherein successful primary and secondary cell change reporting comprises: one or more of a primary and secondary cell change type, radio link monitoring related information, beam failure detection related information, and primary and secondary cell change related information.
16. The method according to any of claims 1-15, wherein the RRC configuration triggering the primary and secondary cell change comprises a first threshold and a second threshold for conditional primary and secondary cell change, a third threshold for legacy primary and secondary cell change;
in the conditional primary and secondary cell change process, if the received signal strength of the secondary node meets a first threshold value according to a measurement report reported by a user, the primary node sends a secondary node addition request to the secondary node meeting the first threshold value; if the received signal strength of the candidate auxiliary node measured by the user equipment meets a second 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; in a conventional primary and secondary cell change process, if the received signal strength of the secondary node meets a third threshold according to a measurement report reported by a user, the primary node sends a secondary node addition request to a target secondary node meeting the third threshold.
17. A base station system, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the primary and secondary cell change based network configuration optimization method of any of claims 1-12 based on instructions stored in the memory.
18. A user equipment, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the primary and secondary cell change based network configuration optimization method of any of claims 13-16 based on instructions stored in the memory.
19. A network configuration optimization system based on primary and secondary cell changes, comprising:
the base station system of claim 17, the base station system comprising a primary node, a source secondary node;
and
the user equipment of claim 18.
20. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the primary and secondary cell change based network configuration optimization method of any of claims 1-16.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024035650A1 (en) * | 2022-08-08 | 2024-02-15 | Qualcomm Incorporated | Network handling of primary secondary cell group cell (pscell) change |
| WO2024031270A1 (en) * | 2022-08-08 | 2024-02-15 | Zte Corporation | Systems and methods for optimizing successful primary cells in secondary cell groups change processes |
| CN117580062A (en) * | 2022-09-08 | 2024-02-20 | 中国电信股份有限公司 | Method, device, equipment and medium for optimizing primary and secondary cell change |
| WO2024065172A1 (en) * | 2022-09-27 | 2024-04-04 | Lenovo (Beijing) Limited | Methods and apparatuses of a mro mechanism for a pcell change with pscell change procedure |
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2021
- 2021-02-02 CN CN202110142259.XA patent/CN114845319A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024035650A1 (en) * | 2022-08-08 | 2024-02-15 | Qualcomm Incorporated | Network handling of primary secondary cell group cell (pscell) change |
| WO2024031270A1 (en) * | 2022-08-08 | 2024-02-15 | Zte Corporation | Systems and methods for optimizing successful primary cells in secondary cell groups change processes |
| CN117580062A (en) * | 2022-09-08 | 2024-02-20 | 中国电信股份有限公司 | Method, device, equipment and medium for optimizing primary and secondary cell change |
| 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 |
| WO2024065172A1 (en) * | 2022-09-27 | 2024-04-04 | Lenovo (Beijing) Limited | Methods and apparatuses of a mro mechanism for a pcell change with pscell change procedure |
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