CN113840340A

CN113840340A - Method, device and medium for acquiring, analyzing and indicating wireless link information

Info

Publication number: CN113840340A
Application number: CN202010588811.3A
Authority: CN
Inventors: 石小丽; 贾晓倩; 邹兰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-12-24
Anticipated expiration: 2040-06-24
Also published as: CN113840340B; WO2021259225A1

Abstract

The embodiment of the application discloses a method for acquiring wireless link information, which comprises the following steps: the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, and the working type is used for indicating first wireless link information when a terminal is successfully switched; the first access equipment acquires first wireless link information after receiving the working type; the first access device sends the first wireless link information to the second network management node, so that the second network management node forwards the first wireless link information to the third network management node. The embodiment of the application further provides a method, a device, equipment and a medium for analyzing the radio link information, so that the second network management node can acquire the first radio link information when the terminal successfully performs cell handover to the first access device through the indication of the work type to the first radio link information.

Description

Method, device and medium for acquiring, analyzing and indicating wireless link information

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, a device, and a medium for acquiring, analyzing, and indicating wireless link information.

Background

For example, when a terminal, such as User Equipment (UE), performs handover between cells, radio link failure caused by inappropriate handover parameters affects both user experience and network resources, and Mobility Robustness Optimization (MRO) is introduced to monitor, identify, and count inter-system handover, and then determine to adjust related inter-system handover parameters to change the difficulty of inter-system handover, so as to minimize the abnormality of inter-system handover and reduce the reduction of inter-system handover performance as much as possible.

Under a 5G New Radio (NR) system, MRO optimization is also introduced, and besides MRO optimization scenarios inheriting Long Term Evolution (LTE), such as three scenarios of too early handover, too late handover, and handover to an error cell, two new scenarios are introduced. A new MRO scenario is applied in a multi-radio-channel connectivity (MR-DC) architecture, where a secondary base station is replaced too early, too late, and to a wrong secondary base station, and the three scenarios are solved by collecting radio link failure reports of the secondary base station; another new MRO scenario is a scenario to resolve a "near-radio link failure (near-RLF)" that may occur on the premise of successful handover.

The MRO needs to acquire data on the acquisition network element, such as signaling of an interface between base stations, signaling of an interface between a base station and a core network, and the like, to determine to adjust the relevant inter-system handover parameters, and the acquisition of the network element data acquires the data on the network element according to subscription needs of a second network management node (such as a network management node, a core network) and the like through a radio link information tracking service (trace), and distributes the data to the second network management node.

In the prior art, trace cannot acquire related data of MR-DC and near-RLF, and therefore other second network management nodes cannot analyze related problems of the scene.

Therefore, the above problems in the prior art have yet to be improved.

Disclosure of Invention

The embodiment of the application provides a method, equipment and a medium for acquiring, analyzing and indicating wireless link information, which are used for solving the problem that a second network management node cannot acquire data of a specified type.

In view of this, a first aspect of the present application provides a method for acquiring radio link information, including: the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, and the working type is used for indicating first wireless link information when a terminal is switched successfully; optionally, the first access device may be a base station, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), the first message may be an activation message, such as a trace session activation message, or may also be a newly defined message, and the terminal may switch to a cell where the first access device is located, or may switch to a cell where other access devices are located; the first access device obtains the first wireless link information from the terminal after receiving the working type; the first access equipment sends the first wireless link information to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node. Alternatively, the second network management node may be a Trace Collection Entity (TCE), and the third network management node may be an MDAS Producer.

In this embodiment, the first access device knows that the type of information that the second network management node expects to acquire is the first radio link information when the terminal successfully switches by acquiring the working type sent by the first network management node, so that the second network management node can obtain data required for analyzing the near-RLF problem in the scenario where the terminal successfully switches to the base station.

With reference to the first aspect, in a first possible implementation manner, the indicating, by the working type, that a handover success report is reported, where the handover success report is used to record the first radio link information, and the obtaining, by the first access device, the first radio link information from the terminal after receiving the working type includes: the first access equipment acquires a switching success report from the terminal; the first access device sends the first radio link information to a second network management node, including: the first access device sends the handover success report to the second network management node.

In this embodiment, the handover success report is used to record the first radio link information, so that the second network management node can analyze the near-RLF problem in the scenario where the terminal successfully switches to the base station based on the handover success report.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the first message further includes a data phase, where the data phase is used to indicate at least one target phase of a handover triggering phase, a handover executing phase, or a handover executing completing phase of the terminal to the first access device; the obtaining, by the first access device, the first radio link information from the terminal after receiving the operation type includes: the first access device obtains first radio link information of the target phase, where the first radio link information includes at least one of the following information: the terminal comprises radio link monitoring information RLM, beam failure detection information BFD, reference signal receiving quality information RSRQ, cell or beam measurement information and corresponding time information and position information when the terminal acquires a switching success report. Optionally, timers T310 and T312 may be included in the RLM, the BFD includes Reference Signal Received Power (RSRP) detected at the time of BFD transmission, the time information may be absolute time or relative time, and the position information may be longitude, latitude, and altitude.

In this embodiment, the indication in the data phase enables the measurement information in the handover success report to have a finer data granularity, and can further distinguish the first radio link data in different data phases in the process of handover from the terminal to the first access device, so that the second network management node can analyze the near-RLF problem in different data phases.

With reference to the first aspect and any one of the foregoing possible implementation manners of the first aspect, in a third possible implementation manner, the first message is obtained by the first network management node from a fifth network management node, and the fifth network management node may be an NMS, an EMS, a management service (Mns) Producer (Mns Producer), Mns Consumer (Mns Consumer), or an MAE.

In this embodiment, the work type in the first message is generated by the fifth network management node, and if the first message includes a data phase, the data phase may also be generated by the fifth network management node, and the fifth network management node generates the first message and then sends the first message to the first network management node, so that the first network management node forwards the data to the first access device.

A second aspect of the present application provides a method for acquiring radio link information, including: the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, the working type is used for indicating second wireless link information when a terminal and second access equipment are failed to be connected, and the first access equipment and the second access equipment form multi-link data transmission for the terminal; optionally, the first access device may be a master base station, the second access device may be a secondary base station, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), and the first message may be an activation message, such as a trace session activation message, or may also be a newly defined message; the first access equipment acquires the second wireless link information from the terminal after receiving the working type; the first access device sends the second radio link information to a second network management node, so that the second network management node sends the second radio link information to a third network node. Alternatively, the second network management node may be a Trace Collection Entity (TCE), and the third network management node may be an MDAS Producer.

In this embodiment, in a multi-link scenario, the first access device obtains the working type sent by the first network management node, and knows that the type of information to be obtained is the second radio link information when the connection between the terminal and the secondary base station fails according to the indication of the working type, so that the type of information can be obtained, and data required for problem analysis in the scenario where the connection between the terminal and the secondary base station fails is obtained.

With reference to the second aspect, in a first possible implementation manner, the acquiring, by the first access device, the second radio link information from the terminal according to the indication of the operation type includes: the first access device acquires a secondary base station connection failure report from the terminal, wherein the secondary base station connection failure report is used for recording the second radio link information; the first access device sends the second radio link information to a second network management node, including: the first access device sends the secondary base station connection failure report to the second network management node.

In this embodiment, the secondary base station connection failure report is used to record the second radio link information, so that the second network management node can analyze the connection failure between the terminal and the secondary base station based on the secondary base station connection failure report.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the connection failure report of the secondary base station includes at least one of the following information: optionally, the failure type includes T310 failure, random access problem, maximum number of RLC retransmissions, SCG synchronization configuration failure, SCG reconfiguration failure, and SRB3(SRB3 is a signaling radio bearer for direct signaling transmission between the secondary base station and the terminal) integrity failure, and the like, and the measurement result of the second access device optionally may include cell information, frequency point information, and RSRP, RSRQ, and the like, and if the secondary base station is a 5G NR base station, the measurement result of a beam including an identifier of a beam, frequency point information, and RSRP, RSRQ, and the like, where the beam may be an SSB or a CSI-RS, and the terminal receives a second access device replacement command sent by the first access device to a time interval during which the second access device replacement failure occurs, and the terminal performs the replacement, And the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment which fails to be replaced.

In this embodiment, according to the content recorded in the connection failure report of the secondary base station, the second network management node may determine the reason for the connection failure between the terminal and the secondary base station, for example, determine whether the terminal is replaced too early or too late through a time interval, and determine whether the terminal is replaced with a correct secondary base station through the cell information, the frequency point information, and the identification information of the terminal, so as to analyze the specific reason for the connection failure between the terminal and the secondary base station.

With reference to the second aspect and any one of the possible implementation manners of the second aspect, in a third possible implementation manner, the first message is obtained by the first network management node from a fifth network management node, and the fifth network management node may be an NMS, an EMS, a Mns Producer (Mns Producer), an Mns Consumer (Mns Consumer), or an MAE.

In this embodiment, the work type in the first message is generated by the fifth network management node, and the fifth network management node generates the first message and then sends the first message to the first network management node, so that the first network management node forwards the data to the first access device.

A third aspect of the present application provides a method for analyzing radio link information, including: a third network management node acquires first wireless link information and/or second wireless link information from a second network management node, wherein the first wireless link information and the second wireless link information are respectively acquired by first access equipment according to a work type sent by the first network management node, and the first wireless link information is wireless link information when a terminal is successfully switched; the second wireless link information is wireless link information when the connection between the terminal and the second access device fails in a multi-link scene, and the first access device and the second access device form multi-link data transmission for the terminal in the multi-link scene; the third network management node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, wherein the analysis result comprises at least one of a coverage problem or a mobility problem; optionally, the first access device may be a base station, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), the job type may be carried in an activation message, the activation message may be a trace session activation message or may also be a newly defined message, the second network management node may be a Trace Collection Entity (TCE), and the third network management node may be an MDAS generator.

In this embodiment, after receiving the instruction of the first network management node, the first access device obtains the first radio link information and/or the second radio link message, and forwards the first radio link information and/or the second radio link message to the third network management node through the second network management node, so that the third network management node can analyze, according to the first radio link information, a near-RLF problem between the terminal and the first access device in a state where the cell handover is successfully performed, or, in a multi-link scenario, the third network management node can analyze a connection problem between the terminal and the second access device according to the second radio link information.

With reference to the third aspect, in a first possible implementation manner, the acquiring, by the third network management node, the first radio link information and/or the second radio link information from the second network management node includes: the third network management node acquires a handover success report from the second network management node, wherein the handover success report is used for recording the first radio link information; the third network node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, including: the third network management node analyzes the coverage problems of the first access device and the terminal according to the handover success report, wherein the coverage problems include at least one of weak coverage, coverage holes and handover coverage.

In this embodiment, the first access device sends the acquired first radio link information to the second network management node in a manner of a handover success report, and the second network management node sends the acquired first radio link information to the third network management node, so that the third network management node analyzes the near-RLF problem based on the handover success report.

With reference to the foregoing first possible implementation manner of the third aspect, in a second possible implementation manner, the measuring information includes radio link monitoring information RLM, and the third network node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, including: the third network management node obtains the switching time of the terminal handover recorded by a timer in the RLM, optionally, the timer is T310 expire; when the switching time is greater than a preset value, the third network management node judges that the first access device and the terminal have a failure of approaching a wireless link, and downlink coverage is abnormal.

In this embodiment, the state of the RLM timer is used to identify the downlink coverage problem, for example, the RLM timer is "T310 expire", that is, when the signal of the serving cell is degraded during the T310 timer, the terminal may need to switch, but because the signal of the serving cell is very poor, the terminal receives a switch command delay, so that the T310 is timed out, and then RLF occurs. The third network node may identify the downlink coverage problem by the timer expiring.

With reference to the first or second possible implementation manner of the third aspect, in a third possible implementation manner, the measuring information includes radio link control, RLC, retransmission times, and the third network node obtains an analysis result according to the first radio link information, where the obtaining includes: and when the RLC retransmission times are larger than a preset value, the third network management node judges that uplink coverage limitation occurs between the first access device and the terminal.

In this embodiment, the number of RLC retransmissions may be used to identify an uplink coverage problem, for example, when the downlink signal quality is good and the uplink coverage is limited, the terminal may have an uplink transmission problem, that is, the number of uplink RLC retransmissions is high, so that the third network management node determines whether a near-RLF problem occurs in the uplink coverage by analyzing the number of RLC retransmissions in the handover success report.

With reference to the third aspect and the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner, the acquiring, by the third network management node, the first radio link information and/or the second radio link information from the second network management node includes: the third network management node acquires an auxiliary base station connection failure report from the second network management node, wherein the auxiliary base station connection failure report is used for recording the second wireless link information; the third network node analyzes the first wireless link information and/or the second wireless link information to obtain an analysis result, including: and the third network management node analyzes the mobility problems of the terminal and the second access equipment according to the connection failure report of the secondary base station, wherein the mobility problems comprise any one of too early replacement, too late replacement or replacement to a wrong cell.

In this embodiment, the first access device sends the acquired second radio link information to the second network management node in a secondary base station connection failure report manner, and the second network management node sends the second radio link information to the third network management node, so that the third network management node analyzes the connection failure problem between the terminal and the second access device based on the secondary base station connection failure report.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the secondary base station connection failure report includes: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when the second access equipment replacement fails; the third network node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, including: when the time interval is smaller than a first preset value, the third network management node judges that the terminal replaces the second access equipment too early; when the time interval is greater than a second preset value, the third network management node judges that the terminal is replaced too late for the second access device, and the second preset value is greater than the first preset value.

In this embodiment, the third network management node may analyze, by the terminal, a time interval from when the second access device replacement command sent by the first access device is acquired to when the second access device replacement failure occurs, where the reason for the connection failure between the terminal and the secondary base station is that the replacement is too early or too late.

With reference to the fourth or fifth possible implementation manner of the third aspect, in a sixth possible implementation manner, the secondary base station connection failure report includes: when the terminal fails to connect with the second device, the cell identifier, the frequency point information and the identifier information of the terminal of the second access device; the third network management node obtains an analysis result according to the second radio link information, including: and the third network management node judges whether the terminal is replaced to a correct cell according to the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment.

In this embodiment, through the identification information of the terminal, the cell identification of the second access device, and the frequency point information, the third network management node may determine whether the terminal has changed to the correct second access device, that is, whether the correct terminal has changed to the correct auxiliary base station, so as to analyze the reason for the connection failure between the terminal and the auxiliary base station.

With reference to the first or sixth possible implementation manner of the third aspect, in a seventh possible implementation manner, the method further includes: the third network management node sends the analysis result to a fourth network management node, so that the fourth network management node adjusts the network parameters according to the analysis result. Optionally, the fourth network management node is an MDAS provider.

In this embodiment, the third network management node is configured to perform analysis according to the information on the first radio link or the information on the second radio link to obtain an analysis result, and the third network management node sends the obtained analysis result to the fourth network management node, so that the fourth network management node adjusts the network parameter according to the analysis result.

With reference to the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner, the sending, by the third network management node, the analysis result to the fourth network management node includes: the third network management node acquires subscription information from the fourth network management node, wherein the subscription information is used for requesting to subscribe at least one of the following information: the handover success includes at least one of a connection failure report of the secondary base station or a target period and a target event; when the subscription message includes at least one of the handover success report or the connection failure report, the third network management node sends an analysis result of the handover success report and/or an analysis result of the connection failure report to the fourth network management node according to the subscription information; when the subscription message includes the target period, the third network management node sends the analysis result to the fourth network management node every interval of the target period; when the subscription message includes the target event, the third network management node sends the analysis result to the fourth network management node when the target event is triggered.

In this embodiment, the third network management node knows the analysis result that the fourth network management node expects to obtain through the message range in the subscription message, so that the third network management node may send at least one of a handover success report or the connection failure report of the secondary base station to the fourth network management node. Further, according to the target period and the target event, the third network management node knows the time for sending the analysis result, and can periodically send the analysis result to the fourth network management node only through one-time receiving and sending of the subscription message, so that signaling interaction is saved.

With reference to the seventh possible implementation manner of the third aspect, in a ninth possible implementation manner, the sending, by the third network management node, the analysis result to the fourth network management node includes: the third network management node acquires a request message from the fourth network management node, wherein the request message is used for requesting the analysis result; and the third network management node sends the analysis result to the fourth network management node according to the request message.

In this embodiment, the fourth network management node directly sends the request message to the third network management node when the analysis result needs to be obtained, that is, the analysis result of the third network management node can be obtained in real time.

With reference to the seventh to ninth possible implementation manners of the third aspect, in a tenth possible implementation manner, after the third network management node sends the analysis result to the fourth network management node, the method further includes: the third network management node obtains a feedback message from the fourth network management node, where the feedback message includes an adjustment condition of the fourth network management node for adjusting the network parameters of the terminal and the first access device.

In this embodiment, optionally, the feedback message may include an adjustment result, an indication of the adjustment result, performance statistics after adjustment, and the like, and the third network management node may know, through the feedback message, an adjustment condition of the fourth network management node for adjusting the network parameter.

A fourth aspect of the present application provides a method for indicating radio link information, including: a fifth network management node generates a first message, wherein the first message comprises a working type, the working type is used for indicating first wireless link information when a terminal is successfully switched, or, in a multi-link scene, the working type is used for indicating second wireless link information when the connection between the terminal and a second access device fails, and the first access device and the second access device form multi-link data transmission for the terminal; the fifth network management node sends the first message to the first network management node, so that the first network management node sends the first message to the first access device.

In this embodiment, the fifth network management node generates the first message and sends the first message to the first network management node, so that the fifth network management node indicates the operation type.

A fifth aspect of the present application provides a network access device, including: a first obtaining unit, configured to obtain a first message from a first network management node, where the first message includes a work type, and the work type is used to indicate first radio link information when a terminal successfully performs handover; a second obtaining unit, configured to obtain the first radio link information from the terminal after receiving the work type obtained by the first obtaining unit; a sending unit, configured to send the first wireless link information acquired by the second acquiring unit to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node. Optionally, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), the first message may be an activation message, such as a trace session activation message, or may also be a newly defined message, and the terminal may switch to a cell where the first access device is located, or may switch to a cell where other access devices are located.

With reference to the fifth aspect, in a first possible implementation manner, the work type is used to indicate a handover success report, where the handover success report is used to record the first radio link information, and the second obtaining unit is further configured to: obtaining a handover success report from the terminal; the sending unit is further configured to: and sending the handover success report acquired by the second acquisition unit to the second network management node.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the first message further includes a data phase, where the data phase is used to indicate at least one target phase of a handover triggering phase, a handover executing phase, or a handover executing completing phase of the terminal to the first access device; the second obtaining unit is further configured to: acquiring first wireless link information of the target phase, wherein the first wireless link information comprises at least one of the following information: the terminal comprises radio link monitoring information RLM, beam failure detection information BFD, reference signal receiving quality information RSRQ, cell or beam measurement information and corresponding time information and position information when the terminal acquires a switching success report. Optionally, timers T310 and T312 may be included in the RLM, the BFD includes Reference Signal Received Power (RSRP) detected at the time of BFD transmission, the time information may be absolute time or relative time, and the position information may be longitude, latitude, and altitude.

With reference to any one of the fifth aspect and the possible implementation manner of the fifth aspect, in a third possible implementation manner, the first message is obtained by the first network management node from a fifth network management node, and the fifth network management node may be an NMS, an EMS, an management service (Mns) Producer (Mns Producer), a Mns Consumer (Mns Consumer), or an MAE.

A sixth aspect of the present application provides a network access device, including: a first obtaining unit, configured to obtain a first message from a first network management node, where the first message includes a work type, the work type is used to indicate second radio link information when a connection between a terminal and a second access device fails, and the first access device and the second access device perform multi-link data transmission with respect to the terminal; optionally, the first access device may be a base station, the second access device may be a secondary base station, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), and the first message may be an activation message, such as a trace session activation message, or may also be a newly defined message; a second obtaining unit, configured to obtain the second radio link information from the terminal after receiving the working type obtained by the first obtaining unit; a sending unit, configured to send the second radio link information acquired by the second acquiring unit to a second network management node, so that the second network management node sends the second radio link information to a third network node. Alternatively, the second network management node may be a Trace Collection Entity (TCE), and the third network management node may be an MDAS Producer.

With reference to the sixth aspect, in a first possible implementation manner, the operation type is used to indicate a secondary base station connection failure report, where the secondary base station connection failure report is used to record the second radio link information, and the second obtaining unit is further configured to: acquiring a secondary base station connection failure report from the terminal, wherein the secondary base station connection failure report is used for recording the second wireless link information; the sending unit is further configured to: and sending the secondary base station connection failure report acquired by the second acquisition unit to the second network management node.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the connection failure report of the secondary base station includes at least one of the following information: a failure type of connection failure between the terminal and the second access device, optionally, the failure type includes T310 failure, random access problem, maximum number of RLC retransmissions, failure of synchronization configuration of secondary base Station (SCG), failure of SCG reconfiguration, failure of integrity of SRB3(SRB3 is a signaling radio bearer for direct signaling transmission between the secondary base station and the terminal), and the like, and the measurement result of the second access device optionally may include cell information, frequency point information, and information such as RSRP and RSRQ, and if the secondary base station is a 5G NR base station, the measurement result of a beam, including an identifier of the beam, frequency point information, and RSRP and RSRQ, and the like, the beam may be SSB or CSI-RS, and the terminal receives a second access device replacement command sent by the first access device to a time interval during which replacement failure of the second access device occurs, and the terminal performs replacement, And the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment which fails to be replaced.

With reference to the sixth aspect or any one of the possible implementation manners of the sixth aspect, in a third possible implementation manner, the first message is obtained by the first network management node from a fifth network management node, and the fifth network management node may be an NMS, an EMS, an management service (Mns) Producer (Mns Producer), Mns Consumer (Mns Consumer), or an MAE.

A seventh aspect of the present application provides a network device, including: an obtaining unit, configured to obtain first wireless link information and/or second wireless link information from a second network management node, where the first wireless link information and the second wireless link information are information obtained by a first access device according to a work type sent by a first network management node, and the first wireless link information is wireless link information when a terminal is successfully handed over; the second wireless link information is wireless link information when the connection between the terminal and the second access equipment fails in a multi-link scene, and the first access equipment and the second access equipment form multi-link data transmission for the terminal in the multi-link scene; optionally, the first access device may be a base station, the first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), or an Element Management System (EMS), the job type may be carried in an activation message, the activation message may be a trace session activation message or may also be a newly defined message, the second network management node may be a Trace Collection Entity (TCE), and the third network management node may be an MDAS generator. An analysis unit, configured to analyze the first radio link information and/or the second radio link information to obtain an analysis result, where the analysis result includes at least one of a coverage problem or a mobility problem.

In this embodiment, after receiving the instruction of the first network management node, the first access device obtains the first radio link information and/or the second radio link information, and forwards the first radio link information and/or the second radio link information to the third network management node through the second network management node, so that the third network management node can analyze, according to the first radio link information, a near-RLF problem between the terminal and the first access device in a state where the cell handover is successfully performed, or, in a multi-link scenario, the third network management node can analyze a connection problem between the terminal and the second access device according to the second radio link information.

With reference to the seventh aspect, in a first possible implementation manner, the obtaining unit is further configured to: acquiring a handover success report from the second network management node, wherein the handover success report is used for recording the first radio link information; the analysis unit is further configured to: and analyzing the coverage problems of the first access device and the terminal according to the handover success report acquired by the acquisition unit, wherein the coverage problems include at least one of weak coverage, coverage holes and handover coverage.

With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the measurement information includes radio link monitoring information RLM, and the analysis unit is further configured to: acquiring the switching time of the terminal to the first access device, which is recorded by a timer in the RLM, wherein optionally, the timer is T310 expire; and when the switching time is greater than a preset value, judging that the first access equipment and the terminal have a failure of approaching a wireless link, and judging that the downlink coverage is abnormal.

In this embodiment, the state of the RLM timer is used to identify the downlink coverage problem, for example, the RLM timer is "T310 expire", that is, when the signal of the serving cell is degraded during the T310 timer, the terminal may need to switch, but because the signal of the serving cell is very poor, the terminal receives a switch command delay, so that the T310 is timed out, and then RLF occurs. Downlink coverage problems can be identified by the timer expiring.

With reference to the first or second possible implementation manner of the seventh aspect, in a third possible implementation manner, the measurement information includes a number of radio link control RLC retransmissions, and the analysis unit is further configured to: and when the RLC retransmission times are larger than a preset value, judging that uplink coverage limitation occurs between the first access equipment and the terminal.

In this embodiment, the number of RLC retransmissions may be used to identify an uplink coverage problem, for example, when the downlink signal quality is good and the uplink coverage is limited, the terminal may have an uplink transmission problem, that is, the number of uplink RLC retransmissions may be high, so as to determine whether the uplink coverage has a near-RLF problem by analyzing the number of RLC retransmissions in the handover success report.

With reference to the seventh aspect and the first to third possible implementation manners of the seventh aspect, in a fourth possible implementation manner, the obtaining unit is further configured to: acquiring a secondary base station connection failure report from the second network management node, wherein the secondary base station connection failure report is used for recording the second wireless link information; the analysis unit is further configured to: and analyzing the mobility problems of the terminal and the second access equipment according to the secondary base station connection failure report, wherein the mobility problems comprise any one of too early replacement, too late replacement or replacement to a wrong cell.

With reference to the fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the secondary base station connection failure report includes: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when the second access equipment replacement fails; the analysis unit is further configured to: when the time interval is smaller than a first preset value, the terminal is judged to be replaced by the second access equipment too early; and when the time interval is greater than a second preset value, judging that the terminal is replaced too late for the second access equipment, wherein the second preset value is greater than the first preset value.

With reference to the fourth or fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the secondary base station connection failure report includes: when the terminal fails to connect with the second device, the cell identifier, the frequency point information and the identifier information of the terminal of the second access device; the analysis unit is further configured to: and judging whether the terminal is replaced to a correct cell or not according to the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment.

In this embodiment, through the identification information of the terminal, the cell identification of the second access device, and the frequency point information, the third network management node may determine whether the terminal has changed to the correct second access device, that is, whether the correct terminal has changed to the correct cell where the secondary base station is located, so as to analyze the reason for the connection failure between the terminal and the secondary base station.

With reference to the seventh aspect and possible implementation manners of the first to sixth aspects of the seventh aspect, in a seventh possible implementation manner, the apparatus further includes a sending unit, where the sending unit is configured to send the analysis result obtained by the analysis unit to a fourth network management node, so that the fourth network management node adjusts network parameters of the terminal and the first access device according to the analysis result, and optionally, the fourth network management node is an MDAS provider.

With reference to the seventh possible implementation manner of the seventh aspect, in an eighth possible implementation manner, the sending unit is further configured to: the third network management node acquires subscription information from the fourth network management node, wherein the subscription information is used for requesting to subscribe at least one of the following information: the handover success includes at least one of a connection failure report of the secondary base station or a target period and a target event; when the subscription message includes at least one of the handover success report or the connection failure report, the third network management node sends an analysis result of the handover success report and/or an analysis result of the connection failure report to the fourth network management node according to the subscription information; when the subscription message includes the target period, the third network management node sends the analysis result to the fourth network management node every interval of the target period; when the subscription message includes the target event, the third network management node sends the analysis result to the fourth network management node when the target event is triggered.

With reference to the seventh possible implementation manner of the seventh aspect, in a ninth possible implementation manner, the sending unit is further configured to: obtaining a request message from the fourth network management node, the request message being used for requesting the analysis result; and sending the analysis result to the fourth network management node according to the request message.

In this embodiment, the fourth network management node directly sends the request message when the analysis result needs to be obtained, that is, the analysis result can be obtained in real time.

With reference to the seventh aspect and the seventh to ninth possible implementation manners of the seventh aspect, in a tenth possible implementation manner, the obtaining unit is further configured to: and obtaining a feedback message from the fourth network management node, where the feedback message includes an adjustment condition of the fourth network management node for adjusting the network parameters of the terminal and the first access device.

In this embodiment, optionally, the feedback message may include an adjustment result, an indication of the adjustment result, performance statistics after adjustment, and the like, and the adjustment condition of the network parameter by the fourth network management node may be known through the feedback message.

An eighth aspect of the present application provides a network device, including: a generating unit, configured to generate a first message, where the first message includes a work type, and the work type is used to indicate first radio link information when a terminal successfully performs handover, or, in a multi-link scenario, the work type is used to indicate second radio link information when a connection between the terminal and a second access device fails, and the first access device and the second access device perform multi-link data transmission on the terminal; a sending unit, configured to send the first message generated by the generating unit to a first network management node, so that the first network management node sends the first message to the first access device.

A ninth aspect of the present application provides a network access device, including: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein; the interaction device is used for acquiring an operation instruction input by a user; the processor is configured to execute program instructions stored in the memory to perform the method according to the first aspect and any one of the possible implementations of the first aspect.

A tenth aspect of the present application provides a network access device, including: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein; the interaction device is used for acquiring an operation instruction input by a user; the processor is configured to execute program instructions stored in the memory to perform the method according to the second aspect and any one of the possible implementations of the second aspect.

An eleventh aspect of the present application provides a network device, including: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein; the interaction device is used for acquiring an operation instruction input by a user; the processor is configured to execute program instructions stored in the memory to perform the method according to any one of the possible implementations of the third aspect and the third aspect.

A twelfth aspect of the present application provides a network device, including: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein; the interaction device is used for acquiring an operation instruction input by a user; the processor is configured to execute the program instructions stored in the memory to perform the method according to any one of the fourth aspect and the possible implementation manner of the fourth aspect.

A thirteenth aspect of the present application provides a computer-readable storage medium, comprising instructions, which, when executed on a computer device, cause the computer device to perform the method according to the first aspect and any one of the possible implementations of the first aspect.

A fourteenth aspect of the present application provides a computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method according to the second aspect and any one of the possible implementations of the second aspect.

A fifteenth aspect of the present application provides a computer-readable storage medium, comprising instructions that, when executed on a computer device, cause the computer device to perform the method according to any one of the possible implementations of the third aspect and the third aspect.

A sixteenth aspect of the present application provides a computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method according to any one of the possible implementations of the fourth aspect and the fourth aspect.

According to the technical scheme, the embodiment of the application has the following advantages:

the embodiment of the application provides a method for acquiring wireless link information, which comprises the following steps: the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, and the working type is used for indicating first wireless link information when a terminal is successfully switched; the first access device obtains the first wireless link information from the terminal after receiving the working type; the first access equipment sends the first wireless link information to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node. Therefore, through the indication of the working type to the first wireless link, the second network management node can acquire the first wireless link information when the terminal successfully performs cell switching to the first access device.

The embodiment of the application provides a method for acquiring wireless link information, which comprises the following steps: the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, the working type is used for indicating second wireless link information when a terminal and second access equipment are failed to be connected, and the first access equipment and the second access equipment form multi-link data transmission for the terminal; the first access equipment acquires the second wireless link information from the terminal after receiving the working type; the first access device sends the second radio link information to a second network management node, so that the second network management node sends the second radio link information to a third network node. Therefore, through the indication of the working type to the second wireless link, the second network management node can acquire the second wireless link information when the connection between the terminal and the second access device fails.

The embodiment of the application provides a wireless link information analysis method, which comprises the following steps: a third network management node acquires first wireless link information and/or second wireless link information from a second network management node, wherein the first wireless link information and the second wireless link information are respectively acquired by first access equipment according to a work type sent by the first network management node, and the first wireless link information is wireless link information when a terminal is successfully switched; the second wireless link information is wireless link information when the connection between the terminal and the second access device fails in a multi-link scene, and the first access device and the second access device form multi-link data transmission for the terminal in the multi-link scene; the third network management node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, wherein the analysis result comprises at least one of a coverage problem or a mobility problem. Therefore, the third network management node can analyze the near-RLF problem between the terminal and the first access equipment in the state of successfully executing the cell switching according to the first wireless link information, or can analyze the connection problem between the terminal and the second access equipment according to the second wireless link information in a multi-link scene.

The embodiment of the application provides a method for indicating wireless link information, which comprises the following steps: the fifth network management node generates a first message, wherein the first message comprises a working type, the working type is used for indicating first wireless link information when the terminal is successfully switched, or in a multi-link scene, the working type is used for indicating second wireless link information when the connection between the terminal and the second access equipment fails, and the first access equipment and the second access equipment form multi-link data transmission for the terminal; the fifth network management node sends the first message to the first network management node so that the first network management node sends the first message to the first access device. And generating a first message by the fifth network management node, and sending the first message to the first network management node, so that the indication of the work type is realized through the fifth network management node.

Drawings

Fig. 1 is a schematic diagram of a network management node in an embodiment of the present application;

FIG. 2 is a diagram illustrating a usage scenario architecture according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating an embodiment of a method for acquiring radio link information according to an embodiment of the present application;

fig. 4 is a schematic diagram of another embodiment of a method for acquiring radio link information according to an embodiment of the present application;

fig. 5 is a schematic diagram of another embodiment of a method for acquiring radio link information according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating an embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 7 is a schematic diagram of another embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating another embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 9 is a schematic diagram of another embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating another embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 11 is a schematic diagram illustrating another embodiment of a method for analyzing radio link information according to an embodiment of the present application;

fig. 12 is a schematic device diagram of a network device according to an embodiment of the present application;

fig. 13 is a schematic diagram of an embodiment of a network access device according to an embodiment of the present application;

fig. 14 is a schematic diagram of another embodiment of a network access device according to an embodiment of the present application;

fig. 15 is a schematic diagram of a network device according to an embodiment of the present application;

fig. 16 is a schematic diagram of another network device according to an embodiment of the present application.

Detailed Description

Embodiments of the present invention provide a method, an apparatus, and a medium for acquiring, analyzing, and indicating radio link information, which can solve a problem that a network management node cannot acquire data of a specified type by sending a work type cell.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For example, when a User Equipment (UE) performs inter-cell handover, radio link failure caused by inappropriate handover parameters affects both user experience and network resources, and Mobility Robustness Optimization (MRO) is introduced to monitor, identify, and count inter-system handover, and then determine to adjust related inter-system handover parameters to change the difficulty of inter-system handover, so as to minimize the abnormality of inter-system handover and reduce the reduction of inter-system handover performance as much as possible.

The MRO needs to acquire data on the acquisition network element, such as signaling of an interface between base stations, signaling of an interface between a base station and a core network, and the like, to determine to adjust the inter-system handover parameters, and the acquisition of the network element data acquires the data on the network element through a radio link information tracking service (trace) according to subscription requirements of a network management node (or the core network), and sends the data to the network management node.

Optionally, the network management node may be a Management Data Analysis Service (MDAS), as shown in fig. 1, the MDAS includes a data analysis module analysis 101, which is an MDAS product, i.e., a provider of MDA functions, and is configured to analyze a wireless link condition according to data collected by a trace; the MDAS Consumer is not shown in the diagram, is a Consumer with the MDAS function, is connected with analytics, and is used for adjusting the network parameters of the network element according to the analysis result of the MDAS Producer; the interference is a data decision unit 102, data is data 103, which may be any data, data collection is a functional entity 104 for data collection, such as a Trace Collection Entity (TCE), which is used to collect data reported by a base station, and the optimization & control is an execution unit 105, which is an entity finally responsible for performing optimization.

Currently, trace cannot acquire related data of MR-DC and near-RLF, and therefore a network management node cannot be provided to analyze related problems of the scene.

In order to solve the above problem, embodiments of the present application provide a method, a device, and a medium for acquiring, analyzing, and indicating radio link information, which may be used in a 5G radio access network (5G NG-RAN) and used to solve a problem that a network management node cannot acquire data of a specified type.

First, a system architecture scenario applied in the embodiment of the present application is described, and the method provided in the embodiment of the present application is applied to a 5G NG-RAN system, and may also be applied to a multi-link data transmission architecture, such as a multi-link data transmission architecture (MR-DC with EPC) of a 4G core network, i.e., an Intra-E-UTRA dual connectivity (EN-DC) architecture between evolved universal terrestrial radio accesses, and a multi-link data transmission architecture (MR-DC with 5GC) of a 5G core network, i.e., an E-UTRA-NR dual connectivity (NG-RAN E-UTRA-NR dual connectivity, NGEN-DC) architecture, an NR-E-UTRA dual connectivity (NG-RAN E-RAN-NR dual connectivity, NE-DC) architecture under an NG wireless network architecture, NR-NR dual connectivity (NR-DC) architecture, etc., and the embodiments of the present application are not limited thereto. As an example, referring to fig. 2, fig. 1 illustrates an application scenario of the method provided by the embodiment of the present application by taking EN-DC as an example.

As shown in fig. 2, a Mobility Management Entity (MME) or a serving gateway (S-GW) constitutes a core network (EPC) of the system, en-gbb is a 5G base station interfacing with the core network, eNB is a 4G base station, and the en-gbb and the eNB constitute an evolved universal terrestrial radio access (E-UTRA) of the system.

A first application scenario of the embodiment of the present application is that when a terminal is successfully handed over to a cell where a base station is located, a near radio link failure (near-RLF) may occur due to fluctuation of signal strength. For the near-RLF condition, the network management node also needs to acquire corresponding radio link data, so as to perform corresponding adjustment.

A second application scenario of the embodiment of the application is a multi-link scenario, where eNB is a main base station, en-gbb is a secondary base station, the main base station, the secondary base station, and the terminal form a multi-link data transmission (MR-DC), and when the terminal performs a cell handover, the terminal changes the secondary base station under an instruction of the main base station, and at this time, a connection failure may occur before the terminal and the secondary base station, for example, the secondary base station is switched too early or too late, or the terminal is switched to an incorrect secondary base station. For these error conditions, the network management node needs to acquire the wireless link data in the MR-DC scenario, so as to perform corresponding adjustment.

The method provided by the embodiment of the application is used for a tracking management architecture, the tracking management architecture is used for acquiring the measurement data of the terminal, the tracking management architecture comprises a tracking management entity (TCE) which is mainly used for acquiring the measurement data of the terminal, and the data acquisition can be triggered by a network management entity or a management service provider or a management service consumer.

The method provided by the embodiment of the application is used for a standard Service Management architecture, and the Management Service architecture comprises two main concepts of Management Service (MnS) and Management Function (MnF). Wherein the management service provides management capabilities. Management service consumers access these management capabilities through a standardized service interface consisting of individually specified management service components. The management function is a management entity whose externally visible behavior and interfaces are specified by the standard as management services. The users (e.g., operators) of the management service provide functions and content to the consumers of the management service so that the consumers of the management service decide how to use according to the scenario. The users of the management service may be referred to herein as MnS Producer and the consumers of the management service may be referred to herein as MnS Consumer.

The method provided by the embodiment of the application is used for a Management Data Analysis Service (MDAS) architecture, and the management data analysis service architecture is a closed management loop and comprises analysis (analysis), decision (decision), Execution (Execution) and Observation (Observation), wherein the closed management loop is executed through collected data. The closed management loop can provide analysis capability to the outside. Wherein the analysis capability may be understood as MDAS Producer, i.e. provider of MDA functionality, and the Consumer using the analysis result may be understood as MDAS Consumer.

Therefore, the embodiment of the present application provides a method for acquiring radio link information, where a network management node specifies a type of acquired data by sending a work type, so as to solve a problem that the network management node cannot acquire data of the specified type, and the method is specifically applied to the following two scenarios: firstly, a near-RLF problem under the scene that the terminal is successfully switched to the base station. And secondly, the connection between the terminal and the auxiliary base station fails under the MR-DC scene. For the sake of understanding, the method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Firstly, a near-RLF problem under the scene that the terminal is successfully switched to the base station.

In this embodiment, after the terminal is successfully switched to the base station, because the signal strength is fluctuated, a near radio link failure near-RLF problem may occur, and the current network management node cannot acquire radio link data of a network element in this scenario, for this reason, the following technical solution provided in this embodiment of the present application please refer to fig. 3, as shown in fig. 3, an embodiment of the method for acquiring radio link information provided in this embodiment of the present application includes the following steps.

301. The first access device obtains a first message from a first network management node.

In this embodiment, the first access device is a device that provides an access service to a terminal, for example, a base station, or a terminal that provides an access service to another terminal in a device-to-device (device-to-device) scenario, and for convenience of understanding, the first access device is uniformly used as the base station in the embodiments of the present application for description.

The first network management node may be a wireless automation engine (mbe), a Network Management System (NMS), an Element Management System (EMS), a management service (Mns), a Producer (Mns Producer), a Mns Consumer (Mns Consumer), an MDAS Producer (MDAS Producer), or an MDAS Consumer (MDAS Consumer), and embodiments of the present application are not limited thereto. Alternatively, the management service producer may also be referred to as a management service Provider (MnS Provider), and the following is similar.

The first message includes a job type jobtype, where the job type is a handover success report, that is, the job type is used to indicate the report of the handover success report, that is, the report of the measurement information when the terminal successfully performs handover. For example, the jobtype is success hand reporting or success hand reporting only. It should be noted that the report of the successful Job type handover report may also be defined as other names, which are intended to indicate the reporting of the measurement information when the terminal successfully performs handover, and the present invention is not limited herein.

The first message is a message sent by the first network management node to the first access device, and is used to activate the first access device to perform a specific work task, where the first message may reuse an existing activation message, such as a trace session activation message, or may also be a newly defined message, which is not limited in this embodiment of the present application.

Optionally, one or more of the following information may also be included in the first message.

A trace reference parameter (trace reference), which is globally unique and is composed of a Mobile Country Code (MCC), a Mobile Network Code (MNC), and a trace identification trace ID, where the MCC and MNC identify a public land mobile network (public land mobile network PLMN) including a management system through a trace activation request of the management system, and optionally, the trace ID is a 3-byte character string.

And the second network management node is a node responsible for data collection, and the IP address is used for informing the first access device that the first wireless link information needs to be sent to the IP address where the second network management node is located after the first wireless link information is acquired.

A region scope (area scope), which may be one or more of: a list of cells, such as cell identities including Physical Cell Identity (PCI) or global cell identity (CGI); tracking Area Code (TAC).

And a report amount (report amount) which exists when a report trigger exists and is used for indicating the base station or the terminal to measure the maximum amount reported.

Reporting Trigger (Reporting Trigger) for indicating the base station or the terminal to measure the triggered event, such as an a1 or an a2 event.

A report interval (report interval) used to indicate an interval of reporting the measurement data by the base station or the terminal.

A measurement period (measurement period) for indicating a period in which the base station or the terminal measures data.

The positioning method is used for indicating a method adopted by the base station or the terminal for positioning, for example, a method such as E-Cell ID, GNSS positioning and the like is adopted.

And (4) data acquisition period.

Optionally, the first message sent by the first network management node may be obtained by the first network management node from a fifth network management node, that is, the content (for example, the work type) included in the first message is configured by the fifth network management node, where the fifth network management node may configure all the information in the first message; alternatively, the fifth network management node may also configure part of the information in the first message, and the rest of the information is determined by the first network management node, which is not limited in this embodiment of the present application.

The fifth network management node may be an NMS, EMS, Mns Producer (Mns Producer), Mns Consumer (Mns Consumer), or MAE.

In this embodiment, all or part of the content in the first message is generated by the fifth network management node and sent to the first network management node, so that the first network management node can acquire the first message and send to the first access device.

As an exemplary embodiment, to activate a Trace task (Trace Job), the MnS consumer creates an object for Trace joba on the MnS producer. The trace jobtype can indicate one or more of RLF report, SCG failure report and success HO report. The object for creating Trace Job may be executed through an existing createMOI creation operation or a newly defined operation, for example, the fifth network management node sends create Trace Job to the first network management node, and an operation message carries a related configuration of Trace Job, such as Job type, which may be defined in a resource model (NRM). The invention is not limited herein, and accordingly, the invention is not limited herein, and the viewing, modifying, deleting the Trace Job object or part of the attributes in part of the object can be performed by the existing getMOIAttributes, modifymoittributes, deletemeOI operations, or by newly defined operations.

As another exemplary embodiment, the trace task (trace jobe) is defined in the resource model NRM of the fifth network management node, wherein a jobtype may indicate one or more of RLF report reporting, SCG failure report reporting, and success HO report reporting. Optionally, one or more of the other information included in the first message may also be defined in the NRM, and the present invention is not limited herein.

302. And the first access equipment acquires the first wireless link information after receiving the working type.

In this embodiment, the working type is a handover success report, and the first access device obtains the handover success report according to the working type, that is, obtains the first radio link information.

The first radio link information is measurement information when the terminal successfully performs handover, that is, a handover success report (successful handover report).

It should be noted that the first radio link information is a handover success report, or optionally, the first radio link information is included in the handover success report, or optionally, the handover success report is included in the first radio link information, which is not limited herein.

Illustratively, the first radio link information includes at least one of the following messages.

1. Radio Link Monitoring (RLM) information, such as timers T310, T312.

2. Beam failure detection information (BFD), such as Reference Signal Received Power (RSRP) detected at the time of BFD transmission.

3. Reference Signal Received Quality (RSRQ) and Qin, Qout messages in the synchronization protocol. Where Qin and Qout are thresholds for downlink out-of-step detection.

4. And the measurement instruction comprises a switching trigger, a switching execution or a measurement instruction performed after the switching execution is finished.

5. Cell or beam measurement information, the beam measurement information includes RSRP and RSRQ measured by a Synchronization Signal Block (SSB) or a channel state information reference signal (CSI-RS), and the measurement information of the cell includes RSRP and RSRQ of the cell. Reference may be made in particular to the TS 38.331 protocol for measuring content.

6. The terminal measures time information and position information corresponding to the information, where the time information may be absolute time or relative time, and the position information may be longitude, latitude, altitude, and the like, and the embodiment of the present application is not limited thereto.

In this embodiment, the first access device receives a first message sent by a first network management node, where the work type included in the first message is a handover success report, and the work type is used to indicate reporting of the handover success report. And the first access equipment acquires a switching success report according to the working type.

Optionally, the specific working manner of the first access device acquiring the handover success report may include the following steps, it should be noted that the following steps are only used as examples, and the acquiring manner may also adopt other methods, which is not limited herein.

1. And the first access equipment starts a tracking session (trace session) after acquiring the activation message.

2. The first access equipment activates connection (active connection) with the terminal.

3. And the terminal executes the switching and successfully switches to the cell where the first access equipment is located.

4. And the terminal sends a switching completion message to the first access equipment, wherein the switching completion message carries a switching success report available indication.

5. The first access equipment initiates a terminal information request message (UE information request) to the terminal, wherein the request message carries a switching success report indication.

6. And the terminal sends a response message to the first access equipment after receiving the switching success report instruction, wherein the response message carries a switching success report.

Optionally, the terminal may also directly carry the handover success report in the handover completion message, so that the handover success report is sent without the request of the first access device, and the embodiment of the present application is not limited.

303. The first access device sends the first radio link information to the second network management node.

In this embodiment, the second network management node and the first network management node may be different nodes, for example, the second network management node may be a Trace Collection Entity (TCE), and the first network management node is an MAE, where the TCE is configured to collect and summarize first radio link information sent by the first access device. The first access device may send the first radio link information to the TCE through an existing message, for example, a trace received reporting message, or may also define a new message, which is not limited herein. Optionally, the first network management node and the second network management node may also be the same node, which is not limited in this embodiment of the present application.

Optionally, the second network management node may also be a wireless automation engine (mbe), a Network Management System (NMS), an Element Management System (EMS), an Mns Producer (Mns Producer), a Mns Consumer (Mns Consumer), an MDAS Producer (MDAS Producer), or an MDAS Consumer (MDAS Consumer), which is not limited in this embodiment.

304. The second network management node forwards the first wireless link information to a third network management node.

In this embodiment, after acquiring the first wireless link information, the second network management node forwards the first wireless link information to the third network management node.

The third network management node may be a wireless automation engine (MAE), a Network Management System (NMS), an Element Management System (EMS), Mns producers (Mns Producer), Mns consumers (Mns Consumer), MDAS producers (MDAS Producer), or MDAS consumers (MDAS Consumer). For convenience of understanding, in the embodiment of the present application, the third network management node is described as an MDAS product, but the present application is not limited to this solution.

Therefore, the second network management node acquires the first radio link information in the scene that the terminal is successfully switched to the first access device, and the third network management node can analyze the problem of near-RLF in which position/area according to the first radio link information, or determine the problem of near-RLF in which time or time period according to the time information of the terminal, and further, the analysis result output by the third network management node can be further applied to other entities. The analysis results may be specific to mobility issues or coverage issues, and may also be a recommendation for specifically adjusted parameters.

It should be noted that the second network management node and the third network management node may be the same node, or may also be different nodes, and the present invention is not limited herein.

In this embodiment, the first network management node sends a working type to the first access device, where the working type is used to indicate reporting of a handover success report, so that the first access device sends the first radio link information to the second network management node. In this way, the first access device sends the acquired first radio link information to the second network management node, and the second network management node forwards the acquired first radio link information to the third network management node, so that the third network management node can acquire the radio link information when the terminal successfully performs cell handover.

It should be noted that, when the terminal successfully performs the handover, the handover success report may include measurement data of different handover stages, for example, a handover trigger stage, a handover execution stage, and a handover execution completion stage, where the handover trigger stage may be data collected after the terminal receives the handover command, the handover execution stage may be related data generated by the terminal initiating a random access process to the first access device, and the handover execution completion stage may be related data generated after the terminal sends a handover completion message to the first access device, which is not limited in this embodiment of the present invention.

Although the handover is successful, the terminal may have an imminent radio link failure (e.g., near-RLF) in any of the above stages. Therefore, the third network management node needs to analyze the first radio link information of the above stage so as to determine near-RLF problems of different stages. In order to further refine the location of the cause of near-RLF, the third network management node needs to obtain a finer-grained handover success report. In this regard, the embodiments of the present application provide a more preferable implementation manner to solve this problem. For the purpose of understanding, the following detailed description is to be read in connection with the accompanying drawings.

Referring to fig. 4, as shown in fig. 4, an embodiment of a method for acquiring radio link information according to the embodiment of the present application includes the following steps.

It should be noted that the following embodiments describe the first radio link information as an example of a handover success report.

401. The first access device obtains a first message from a first network management node.

In this embodiment, the detailed working manner of step 401 may refer to the description of step 301, and is not described herein again. The first message carries a data phase indication besides the work type, where the data phase indication is used to indicate one or more target phases in a handover trigger phase, a handover execution phase, or a handover execution completion phase. Alternatively, the data phase indication may be configured by a fifth network management node.

402. And the first access equipment acquires a switching success report of the target stage.

In this embodiment, the handover success report is measurement information in a target phase, and in different target phases, the first access device may obtain different measurement information from the terminal.

1. Radio Link Monitoring (RLM) information, such as timers T310, T312.

403. And the first access equipment sends a switching success report to the second network management node.

In this embodiment, the handover success report is a handover success report of the target phase, that is, the handover success report includes measurement information corresponding to at least one data phase in the terminal successful handover process.

404. The second network management node forwards the handover success report to the third network management node.

In this embodiment, after obtaining the handover success report, the second network management node forwards the handover success report to the third network management node, so that the second network management node obtains measurement information of different data stages in a process of successfully handover from the terminal to the first access device, and the third network management node may analyze near-RLF problems of different data stages according to the measurement information.

It should be noted that, in the embodiment of the present invention, the first network management node and the second network management node may be the same node, or may be different nodes. The second network management node and the third network management node may be the same node, or may be different nodes, and the present invention is not limited herein.

In this embodiment, the first network management node not only sends the report of the work type indication handover success report to the first access device, but also sends the data phase indication to the first access device, so as to indicate the target phase of the handover success report. Therefore, the first access equipment can acquire the switching success report of the target phase according to the working type and the indication of the data phase. And then the information is sent to a second network management node, and the second network management node forwards the information to a third network management node for further accurately positioning the generation stage of the near-RLF problem.

And secondly, the connection between the terminal and the auxiliary base station fails under the MR-DC scene.

In this embodiment, in an MR-DC scenario, a main base station and an auxiliary base station jointly provide data services for a terminal in each cell, and when the terminal performs cell handover and then changes to a new main base station, the main base station may instruct the terminal to change the auxiliary base station, and at this time, the terminal may have failure in changing the auxiliary base station, for example, the auxiliary base station is switched too early or too late, or the terminal is switched to an incorrect auxiliary base station. In order to acquire radio link information of connection failure between a terminal and a secondary base station in an MR-DC scene, the following method is provided in an embodiment of the present application. Referring to fig. 5, as shown in fig. 5, a third embodiment of the method for acquiring radio link information according to the embodiment of the present application includes the following steps.

501. The first access device obtains a first message from a first network management node.

In this embodiment, as described above, the first access device is a device that provides an access service to a terminal, for example, a base station, or a terminal that provides an access service to another terminal in a device-to-device (device-to-device) scenario.

The first network management node may be a wireless automation engine (MAE), a Network Management System (NMS), or an Element Management System (EMS), Mns Producer (Mns Producer), Mns Consumer (Mns Consumer), MDAS Producer (MDAS Producer), or MDAS Consumer (MDAS Consumer), which is not limited in the embodiments.

The first message includes a job type jobtype, the job type is secondary base station connection failure report reporting, and the job type is used for indicating the reporting of the secondary base station connection failure report, that is, the reporting of the measurement information when the connection between the terminal and the secondary base station fails. For example, the jobtype is SCG (secondary cell group) failure reporting or SCG failure reporting only, and optionally, the working type may also be secondary cell connection failure report reporting, which is used to indicate the reporting of the secondary cell group connection failure report. It should be noted that the report of the connection failure of the secondary base station or the report of the connection failure of the secondary cell of the jobtype may also be defined as other names, which are intended to indicate the report of the measurement information when the connection between the terminal and the secondary base station (or the secondary cell) fails, and the present invention is not limited herein. For convenience of understanding, in this embodiment, a scheme for reporting a connection failure report by using a working type as a secondary base station is described.

It should be noted that, in an MR-DC scenario, a first access device and a second access device form multi-link data transmission to a terminal, for example, the first access device is a primary base station, and the second access device is a secondary base station.

Optionally, the first message may further include one or more of the following information:

And (4) data acquisition period.

Optionally, the first message sent by the first network management node may be obtained by the first network management node from a fifth network management node, that is, the content (for example, the work type) included in the first message is determined by the fifth network management node, where the fifth network management node may configure all of the above information in the first message; alternatively, the fifth network management node may also configure part of the information in the first message, and the rest of the information is determined by the first network management node, which is not limited in this embodiment of the present application.

502. And the first access equipment acquires the second wireless link information from the terminal after receiving the working type.

In this embodiment, the working type is the secondary base station connection failure report, and the first access device obtains the secondary base station connection failure report according to the working type, that is, obtains the second radio link information.

The second radio link information is measurement information when the connection between the terminal and the secondary base station fails, that is, an auxiliary base station connection failure report (SCG failure reporting).

It should be noted that the second radio link information is the secondary base station connection failure report, or optionally, the second radio link information is included in the secondary base station connection failure report, or optionally, the secondary base station connection failure report is included in the second radio link information, which is not limited herein.

Illustratively, the second radio link information includes at least one of the following messages.

1. The failure types include T310 failure, random access problem, maximum number of RLC retransmissions, secondary base Station (SCG) synchronization configuration failure, SCG reconfiguration failure, and SRB3(SRB3 is a signaling radio bearer for directly transmitting signaling between the secondary base station and the terminal) integrity failure.

2. The measurement result of the first access device includes cell information, frequency point information, and information such as RSRP, RSRQ, etc.

3. The measurement result of the second access device includes cell information, frequency point information, and information such as RSRP, RSRQ, etc., and if the second access device is a 5G NR base station, the measurement result also includes measurement results of beams, which include identifications of beams, frequency point information, and RSRP, RSRQ, etc., where the beams may be SSBs or CSI-RSs.

4. And the time length from the reception of the second access equipment replacement command to the occurrence of the second access equipment switching failure of the terminal.

5. And the cell identification, the frequency point and other information of the failed second access equipment occur.

6. Identification information of the terminal.

In this embodiment, the first access device receives a first message sent by a first network management node, where the work type included in the first message is a secondary base station connection failure report, and the work type is used for reporting a secondary base station connection failure report. And the first access equipment acquires the auxiliary base station connection failure report according to the working type.

Optionally, the specific working manner of the first access device acquiring the connection failure report of the secondary base station may include the following steps, it should be noted that the following steps are only used as examples, and the acquiring manner may also adopt other methods, which is not limited herein.

3. And when the terminal generates a radio link failure on the second access equipment, the first access equipment acquires a connection failure report of the secondary base station from the terminal.

503. The first access device sends the second wireless link information to the second network management node.

In this embodiment, the second network management node and the first network management node may be different nodes, for example, the second network management node may be a Trace Collection Entity (TCE), and the first network management node is an MAE, where the TCE is configured to collect and summarize second radio link information sent by the base station. The sending of the second radio link information to the TCE by the base station may be through an existing message, for example, a trace received reporting message, or may also be through defining a new message, which is not limited herein. Optionally, the first network management node and the second network management node may also be the same node, which is not limited in this embodiment of the present application.

504. The second network management node forwards the second radio link information to a third network management node.

In this embodiment, after acquiring the second wireless link information, the second network management node forwards the second wireless link information to the third network management node.

The third network management node may be a wireless automation engine (mbe), a Network Management System (NMS), an Element Management System (EMS), an Mns Producer (Mns Producer), a Mns Consumer (Mns Consumer), an MDAS Producer (MDAS Producer), or an MDAS Consumer (MDAS Consumer), which is not limited in the embodiments of the present application. For convenience of understanding, in the embodiment of the present application, the third network management node is described as an MDAS product, but the present application is not limited to this solution.

Therefore, the third network management node acquires the second wireless link information when the connection between the terminal and the second access device fails. The third network management node (MDAS Producer) may analyze the mobility problem of the terminal at the second access device and the coverage problem of the second access device according to the second radio link information, and further, an analysis result output by the third network management node may be further applied to other entities. The analysis results may be specific to mobility issues or coverage issues, and may also be a recommendation for specifically adjusted parameters.

In this embodiment, the first network management node sends a working type to the first access device, where the working type is used to indicate reporting of a connection failure report of the secondary base station, so that the first access device sends the second radio link information to the second network management node. In this way, the first access device sends the acquired second radio link information to the second network management node, and the second network management node forwards the second radio link information to the third network management node, so that the third network management node can acquire the radio link information when the connection between the terminal and the auxiliary base station fails.

Further, after the third network management node acquires the radio link data according to the method, the acquired data needs to be analyzed, specifically, a near-RLF problem between the terminal and the base station is analyzed in the first application scenario, and a connection failure problem between the terminal and the second access device is analyzed in the second application scenario. The analysis result obtained by the third network node can be further sent to the fourth network node, so that the fourth network management node can adjust the network parameters according to the analysis result, and the communication system can work normally. In view of the above, an embodiment of the present application provides a method for analyzing radio link information, which respectively aims at the first application scenario: the near-RLF problem in the scenario where the terminal is successfully switched to the base station, and the second application scenario: and the connection between the terminal and the auxiliary base station fails in the MR-DC scene. For the convenience of understanding, the following description will be made in detail with reference to the accompanying drawings.

Firstly, a near-RLF problem analysis method under the scene that a terminal is successfully switched to a base station.

In this embodiment, when a near-RLF problem occurs in a scenario where a terminal is successfully switched to a base station, according to the method described above, a third network management node acquires first radio link information, analyzes the first radio link information, sends an obtained analysis result to a fourth network management node, and further, the fourth network management node adjusts network parameters of the terminal and the base station. For understanding, the following detailed description is provided with reference to fig. 6, and as shown in fig. 6, the fourth embodiment of the present application includes the following steps.

601. The third network management node acquires the first wireless link information from the second network management node.

In this embodiment, the third network management node obtains a handover success report from the second network management node, where the handover success report includes the first radio link information, or the handover success report is the first radio link information. The first radio link information is information when cell handover is successfully performed. The specific information of the first radio link information can refer to the related description in step 302, and is not described herein again. The specific implementation manner of the third network management node acquiring the first radio link information may refer to any one of the first embodiment or the second embodiment, which is not described herein again.

602. And the third network management node acquires an analysis result according to the first wireless link information.

In this embodiment, for example, the third network management node may be an MDAS Producer, and the third network management node analyzes the acquired first radio link information, so as to know a coverage problem and/or a mobility problem of the first access device to the terminal.

Optionally, the first radio link information is recorded in a handover success report, and the third network management node obtains the handover success report sent by the second network management node and analyzes the handover success report to obtain an analysis result.

Optionally, at least one measurement information is recorded in the handover success report, and the measurement information is used for recording a connection situation between the terminal and the first access device, where the measurement information may include at least one of radio link monitoring information (RLM) and Radio Link Control (RLC) retransmission times. The specific analysis methods for these two data are described in detail below.

1. The handover success report includes RLM information.

The third network management node analyzes the RLM information recorded in the handover success report, and includes the following steps.

1) And the third network management node acquires the switching time of the terminal recorded by the timer in the RLM to the first access equipment.

2) And the third network management node determines whether the switching time is greater than a preset value, where the preset value may be preset by a person skilled in the art according to an actual situation, and the embodiment of the present application is not limited thereto.

3) And when the switching time is equal to a preset value, the third network management node judges that the radio link failure near-RLF occurs between the first access equipment and the terminal, and the downlink coverage is abnormal.

In this embodiment, the state of the RLM timer is used to identify the downlink coverage problem, for example, the RLM timer is "T310 expire", that is, when the signal of the serving cell is degraded during the T310 timer, the terminal may need to switch, but because the signal of the serving cell is very poor, the terminal receives a switch command delay, so that the T310 is timed out, and then RLF occurs. The timer timeout can be used to identify downlink coverage problems.

2. The handover success report includes the number of RLC retransmissions.

The third network management node analyzes the RLC retransmission times recorded in the handover success report, and includes the following steps.

1) And the third network management node acquires the RLC retransmission times from the switching success report.

2) And the third network management node determines whether the RLC retransmission number is greater than a preset value, where the RLC retransmission number may be preset by a person skilled in the art according to an actual situation, and the embodiment of the present application is not limited.

3) And when the RLC retransmission times are larger than a preset value, the third network management node judges that uplink coverage limitation occurs between the first access equipment and the terminal.

Further, the measurement information in the handover success report may further include at least one of beam failure detection information BFD, reference signal received quality information RSRQ, cell or beam measurement information, and time information and location information corresponding to when the terminal acquires the handover success report, and a method for the third network management node to analyze the near-RLF problem according to these data belongs to the prior art, which is not described in detail in this embodiment of the present application.

Further, as described in the second embodiment, the handover success report may further include target phases, where the target phases are at least one data phase of a handover triggering phase, a handover executing phase or a handover executing completion phase of the terminal to the first access device, and in this case, the measurement information is measurement information acquired in the target phases. The third network management node may analyze the near-RLF problem in different data phases more finely, for example, the third network management node analyzes whether the near-RLF problem occurs in the downlink coverage of the handover trigger phase according to the RLM information of the handover trigger phase from the terminal to the first access device, or the third network management node analyzes whether the near-RLF problem occurs in the uplink coverage of the handover execution phase according to the number of RLC retransmissions of the handover execution phase from the terminal to the first access device, so as to refine the granularity of problem analysis and accurately determine which data phase the near-RLF problem occurs in.

Optionally, the target stages included in the data stage may be further differentiated according to actual needs, for example, different granularities or finer granularities, and this embodiment of the present application is not limited thereto.

In this embodiment, since the first radio link information is obtained by the method provided in the first embodiment or the second embodiment of the present application, the third network management node can analyze a near-RLF problem between the terminal and the access device according to the obtained first radio link information, so that the second network management node can determine whether the near-RLF problem occurs between the terminal and the first access device.

603. And the third network management node sends the analysis result to the fourth network management node.

In this embodiment, the fourth network management node may be a wireless automation engine (mbe), a Network Management System (NMS), an Element Management System (EMS), an Mns Producer (Mns Producer), a Mns Consumer (Mns Consumer), an MDAS Producer (MDAS Producer), or an MDAS Consumer (MDAS Consumer), which is not limited in this embodiment. For convenience of understanding, in the present embodiment, the fourth network management node is used as an MDAS provider to describe the scheme, but the scheme is not limited to the embodiment of the present application, and as described above, the third network management node is an MDAS Producer, and the MDAS provider is configured to adjust a network parameter according to an analysis result of the MDAS Producer, so as to repair a near-RLF problem between the terminal and the first access device.

Optionally, the manner in which the third network management node sends the analysis result to the fourth network management node may be divided into two different manners, and 1, the third network management node actively sends the analysis result to the fourth network management node according to the subscription information sent by the fourth network management node. 2. And the third network management node sends the analysis result to the fourth network management node according to the request message sent by the fourth network management node. For the sake of understanding, the two cases will be described in detail below with reference to the accompanying drawings.

1. And the third network management node sends an analysis result to the fourth network management node according to the subscription message sent by the fourth network management node.

In this embodiment, the fourth network management node sends the subscription message to the third network management node, for example, through an existing subscribe operation message or a newly defined operation message, which is not limited herein. The subscription message may include: 1) message range, 2), target period and 3), target event, so that the third network management node sends all or part of the first wireless link information subscribed by the third network management node to the fourth network management node every time the target period and/or the target event is triggered. The three cases are described in detail below with reference to the drawings.

1) And the subscription message comprises a message range.

In this embodiment, the message range of the subscription information is used to specify a message that the fourth network management node desires to obtain, for example, the subscription information is used to subscribe to one or more of the following messages.

a. And under the scene that the terminal is successfully switched, analyzing results of near-RLF problems (analyzing results reported by successful switching). Optionally, when a plurality of different data phases are included in the handover success report, the subscription message may also request to subscribe to the analysis result for the near-RLF problem in one or more of the data phases.

b. In a multi-link scenario, an analysis result (an analysis result for a secondary base station connection failure report) when the terminal fails to connect with a second access device (e.g., a secondary base station).

c. The analysis result when the radio link fails (the analysis result of reporting RLF report for radio link failure, it should be noted that RLF report is a report type in the prior art and is used to record the connection state between the terminal and the first access device, for example, to identify scenarios such as early handover, late handover, and handover to a wrong cell of the terminal, and to identify the coverage condition of the base station, weak coverage, coverage hole, and handover coverage, etc.).

It should be noted that the condition b is applicable to a multi-link scenario, where a connection failure report SCG failure report is sent between a terminal and an auxiliary base station (or an auxiliary cell group, SCG); the above-mentioned condition c is used for a Radio Link Failure (RLF) report RLF report between the terminal and the base station, and is a common scenario, so that two types of RLF reports are different. In the scheme in the prior art, the second network management node can acquire the RLF report, and the second network management node must rely on the radio link information acquisition method provided in the embodiment of the present application to acquire the SCG failure report of the auxiliary base station.

Referring to fig. 7, as shown in fig. 7, this case specifically includes the following steps.

701. And the fourth network management node sends the first subscription information to the third network management node.

In this embodiment, the first subscription information is used to request to subscribe to a part of or all of the analysis results of the third network management node, where the part of the analysis results is the analysis results of the specified part of the first subscription information, and may be at least one of the analysis results a, b, and c.

702. And the third network management node sends a part of analysis results or all analysis results to the fourth network management node according to the first subscription information.

In this embodiment, the third network management node sends the desired information to the fourth network management node according to the indication of the first subscription information.

In this embodiment, the fourth network management node makes the third network management node know which analysis results need to be sent through the first subscription message, so that the fourth network management node can obtain the desired analysis results.

2) And the subscription information comprises a target period.

In this embodiment, optionally, the fourth network management node sends the target period to the third network management node, so that the third network management node sends the analysis result to the fourth network management node according to the target period. Referring to fig. 8, as shown in fig. 8, the method specifically includes the following steps.

801. And the fourth network management node sends the second subscription information to the third network management node.

In this embodiment, the second subscription information includes a target period, where the target period may be defined by a standard, or may be specified by the fourth network management node, and this is not limited in this embodiment of the application. Through the target period carried in the second subscription information, the third network management node can know the period of sending the analysis result to the fourth network management node.

802. And the third network management node sends the analysis result to the fourth network management node every interval target period.

In this embodiment, the third network management node sends the analysis result to the fourth network management node according to the target period subscribed by the fourth network management node, optionally, the analysis result sent by the third network management node may be all analysis results in the third network management node, or a part of the analysis result may be sent according to the step shown in fig. 7, which is not limited in this embodiment of the application, and the specific step of the fourth network management node indicating the part of the analysis result to the third network management node may refer to the step shown in fig. 7, which is not described herein again.

In this embodiment, since the connection condition between the terminal and the base station is dynamically changed, the third network management node needs to analyze the coverage condition and the mobility condition in real time, and then periodically send an analysis result to the fourth network management node according to the target period indicated by the fourth network management node, and the third network management node can periodically send the analysis result to the fourth network management node only by receiving and sending the subscription message once, so that signaling interaction is saved, and when the third network management node needs to adjust the target period, the steps shown in fig. 8 may be repeated to update the target period.

3) And the subscription information comprises a target event.

In this embodiment, the third network management node sends the target event to the fourth network management node when the target event is triggered according to the target event subscribed by the fourth network management node. Referring to fig. 9, as shown in fig. 9, this case includes the following steps.

901. And the fourth network management node sends the third subscription information to the third network management node.

In this embodiment, the third subscription information includes a target event, so that the third network management node sends the analysis result to the fourth network management node when the target event is satisfied, where the target event may be implemented by setting a threshold, for example, if the analysis result covers more than X percent, the analysis result needs to be reported, and X may be set by a person skilled in the art according to actual needs, which is not limited herein.

902. And when the target event is triggered, the third network management node sends an analysis result to the fourth network management node.

In this embodiment, according to a target event sent by a fourth network management node, when the target event is triggered, a third network management node sends an analysis result to the fourth network management node, optionally, the analysis result sent by the third network management node may be all analysis results in the third network management node, or a partial analysis result may be sent according to the steps shown in fig. 7, which is not limited in this embodiment of the present application, and a specific step of indicating the partial analysis result to the third network management node by the fourth network management node may refer to the step shown in fig. 7, which is not described herein again.

In this embodiment, according to a target event subscribed by the fourth network management node, when the target event is triggered, the third network management node sends an analysis result to the fourth network management node. Therefore, signaling interaction between the two network management nodes is further reduced, and the sending efficiency of the analysis result is improved.

Optionally, after the fourth network management node subscribes the analysis result to the third network management node through the subscription message, the fourth network management node may further send a unsubscribe message to the third network management node, so as to unsubscribe the fourth network management node from the message subscription of the third network management node.

2. And the third network management node sends the analysis result to the fourth network management node according to the request message sent by the fourth network management node.

In this embodiment, when the fourth network management node needs to obtain an analysis result from the third network management node, the request message is sent to the third network management node, so that the third network management node sends the analysis result to the fourth network management node according to the request message. For the sake of understanding, this is explained in detail below with reference to the drawings.

Referring to fig. 10, as shown in fig. 10, this case includes the following steps.

1001. The fourth network management node sends a request message to the third network management node.

In this embodiment, the request message is used to request an analysis result of the third network management node, and optionally, the request message may also carry indication information indicating a part of the analysis result in the third network management node, for example, a handover success report in a near-RLF scenario, a connection failure report of the secondary base station in a multi-link scenario, and a radio link failure report, which is not limited in this embodiment of the present application.

1002. And the third network management node sends the analysis result to the fourth network management node according to the request message.

In this embodiment, the third network management node sends the analysis result to the fourth network management node according to the request of the request message, thereby implementing the sending based on the request message.

In this embodiment, compared with a mode of subscribing to an analysis result through a subscription message, the fourth network management node directly sends a request message to the third network management node when the analysis result needs to be obtained, so that the analysis result of the third network management node can be obtained in real time.

604. The fourth network management node adjusts the network parameters based on the analysis result.

The network parameter may be one or more of a mobility parameter (e.g., cell bias angle CIO, etc.), an overlay radio frequency parameter (e.g., antenna downtilt angle, azimuth angle, etc.), and an overlay beam parameter (e.g., downlink signal strength threshold SSBRSRPThreshold of a beam, etc.), which is not limited herein.

In this embodiment, the fourth network management node obtains an analysis result from the third network management node through the above steps, where the analysis result includes analysis of a near-RLF problem in a state where the terminal successfully switches to the base station, and optionally, the analysis result may further include an adjustment suggestion for adjusting a network parameter. Based on these analysis results, the fourth network management node adjusts the network parameters of the network elements such as the terminal and the base station, so as to solve the near-RLF problem in the state where the terminal is successfully switched to the base station.

605. And the fourth network management node sends a feedback message to the third network management node.

In this embodiment, the feedback message includes an adjustment condition that the fourth network management node adjusts the network parameters of the terminal and the base station, and optionally, the feedback message may include the following contents.

And (3) adjusting the result: the adjustment result comprises one or more of the result of the mobility parameter adjustment in the wireless link information, the result of the coverage radio frequency parameter adjustment and the result of the coverage beam parameter adjustment by the fourth network management node.

Indication of the adjustment result: for example, the parameter adjustment result may be an indication of a mobility parameter adjustment result, or an indication of a coverage parameter adjustment result, and the present embodiment is not limited thereto.

Adjusted performance statistics, and the like, wherein performance statistics may be obtained from a Radio Access Network (RAN).

By the above manner, the third network management node can know the adjustment condition of the fourth network management node for adjusting the network parameters through the feedback message.

In this embodiment, according to the method for acquiring radio link information provided in this embodiment, a third network management node acquires, from a second network management node, first radio link information, where the first radio link information is sent to the second network management node by a first access device according to an instruction of a work type sent by the first network management node, and the first radio link information includes radio link information when a terminal successfully performs cell handover; and then the third network management node acquires an analysis result according to the first wireless link information, the third network management node sends the analysis result to a fourth network management node, and the fourth network management node adjusts the network parameters according to the analysis result and then sends a feedback message to the third network management node so that the third network management node knows the result of network parameter adjustment.

And secondly, analyzing the problem of connection failure between the terminal and the auxiliary base station in the MR-DC scene.

In this embodiment, in a multi-link scenario, when a connection failure occurs between the terminal and the secondary base station, according to the foregoing method, the third network management node acquires the second wireless link information, analyzes the second wireless link information, sends an obtained analysis result to the fourth network management node, and adjusts the network parameter by the fourth network management node. For understanding, this is described in detail below with reference to the accompanying drawings, referring to fig. 11, and as shown in fig. 11, a fifth embodiment of the present application includes the following steps.

1101. The third network management node acquires the second radio link information from the second network management node.

In this embodiment, the second radio link information is acquired by the first access device according to the work type sent by the first network management node, the second radio link information includes radio link information when the connection between the terminal and the second access device fails, and the first access device and the second access device form multilink data transmission for the terminal. The third network management node may refer to the third embodiment, and details thereof are not described herein.

1102. And the third network management node acquires the analysis result according to the second wireless link information.

In this embodiment, the analysis result includes a connection problem between the second access device and the terminal, the third network management node may be an MDAS Producer, and the third network management node analyzes the acquired second radio link information, so as to analyze a connection failure problem between the terminal and the secondary base station under the multi-link condition according to the second radio link data, and specifically, the handover failure problem of the secondary base station includes a condition that the terminal is handed over to the secondary base station too early, too late, or is handed over to a wrong cell.

Optionally, the second radio link information is recorded in the secondary base station connection failure report, and the third network management node obtains the secondary base station connection failure report sent by the second network management node and analyzes the secondary base station connection failure report to obtain an analysis result.

Optionally, the information recorded in the secondary base station connection failure report includes: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when the second access equipment replacement fails; and when the connection between the terminal and the second access device fails, the cell identifier, the frequency point information and the identifier information of the terminal of the second access device. The specific analysis methods for these two data are described in detail below.

1. The auxiliary base station connection failure report comprises a time interval from the time when the terminal acquires a second access equipment replacement command sent by the first access equipment to the time when the second access equipment replacement failure occurs.

In this embodiment, in a multi-link scenario, the first access device is a primary base station, the second access device is a secondary base station, and the primary base station and the secondary base station need to be replaced when the terminal performs cell handover. When the terminal is switched to a cell where a new main base station is located, the main base station can instruct the terminal to execute replacement of the auxiliary base station, at the moment, the main base station can send a replacement command to the terminal, so that the terminal can execute replacement of the auxiliary base station based on the replacement command, and the third network management device can analyze the connection failure condition between the base station and the auxiliary base station based on the time interval from the time when the terminal acquires the replacement command to the time when the replacement failure of the auxiliary base station occurs. The method specifically comprises the following steps.

1) And the third network management node acquires the time interval from the acquisition of the second access equipment replacement command sent by the first access equipment to the occurrence of the second access equipment replacement failure by the terminal from the secondary base station connection failure report.

2) And when the time interval is smaller than the first preset value, the third network management node judges that the terminal replaces the second access equipment too early.

3) And when the time interval is greater than a second preset value, the third network management node judges that the terminal replaces the second access equipment too late, and the second preset value is greater than the first preset value.

In this embodiment, the first preset value and the second preset value may be set by a person skilled in the art according to actual needs, and the embodiment of the present application is not limited thereto.

2. The auxiliary base station connection failure report comprises a cell identifier, frequency point information and identifier information of the terminal of the second access device when the terminal fails to connect with the second access device.

In this embodiment, when the connection between the terminal and the second access device fails, the terminal may replace the second access device with an error in addition to the situations of too early and too late, that is, the terminal may replace the auxiliary base station with an error in a multi-link scenario, and analyzing the situation includes the following steps.

1) And the third network management node acquires the cell identifier, the frequency point information and the identifier information of the terminal of the second access device from the connection failure report of the auxiliary base station.

2) And the third network management node judges whether the terminal is replaced to the correct second access equipment or not according to the cell identifier, the frequency point information and the identifier information of the second access equipment.

Further, after the third network management node obtains the analysis result, an adjustment suggestion for adjustment may be added to the analysis result, so that the fourth network management node adjusts the network parameter based on the adjustment suggestion in the subsequent step.

1103. And the third network management node sends the analysis result to the fourth network management node.

In this embodiment, the third network management node sends the analysis result to the fourth network management node, so that the fourth network management node adjusts the network parameters of the terminal and the second access device according to the analysis result.

Optionally, the third network management node may send the analysis result to the fourth network management node based on a subscription message or a request message sent by the fourth network management node, where the subscription message may be used to subscribe to one or more of a message range, a target period, or a target event. The specific implementation manner can refer to the records of fig. 7 to fig. 10, and is not described herein again.

1104. And the fourth network management node adjusts the network parameters based on the analysis result.

In this embodiment, the fourth network management node obtains an analysis result from the third network management node through the above steps, where the analysis result includes analysis of a connection failure problem between the terminal and the secondary base station, and optionally, the analysis result may further include an adjustment suggestion for adjusting a network parameter. Based on the analysis results, the fourth network management node adjusts the network parameters of the network elements such as the terminal and the auxiliary base station, so as to solve the problem of connection failure between the terminal and the auxiliary base station.

1105. And the fourth network management node sends a feedback message to the third network management node.

Indication of the adjustment result: for example, the parameter adjustment result may be an indication of a mobility parameter adjustment result, or an indication of a coverage parameter adjustment result, which is not limited in the embodiment of the present application;

In this embodiment, according to the method for acquiring radio link information provided in this embodiment, a third network management node acquires, from a second network management node, second radio link information that is acquired by a first access device according to a work type sent by the first network management node, where the second radio link information includes radio link information when connection between a terminal and the second access device fails, and the first access device and the second access device form multilink data transmission with respect to the terminal; the third network management node acquires an analysis result according to the second wireless link information, wherein the analysis result comprises the connection problem of the second access equipment and the terminal; and the third network management node sends the analysis result to a fourth network management node, so that the fourth network management node adjusts the network parameters of the terminal and the second access equipment according to the analysis result. Therefore, the wireless link information is adjusted, and the problem of connection failure of the terminal and the auxiliary base station in a multi-link scene is solved.

Described in terms of hardware structures, the radio link information obtaining method and the radio link information adjusting method may be implemented by one entity device, may also be implemented by multiple entity devices together, and may also be a logic function module in one entity device, which is not specifically limited in this embodiment of the present application.

For example, the information transmission method described above may be implemented by the network device in fig. 12. Fig. 12 is a schematic hardware structure diagram of a network device according to an embodiment of the present application; the network device may be the network device in the embodiment of the present invention, or may be a terminal device. The network device includes at least one processor 1201, communication lines 1202, memory 1203 and at least one communication interface 1204.

The processor 1201 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (server IC), or one or more ICs for controlling the execution of programs in accordance with the present invention.

The communication link 1202 may include a path for communicating information between the aforementioned components.

Communication interface 1204 may employ any transceiver or the like for communicating with other devices or communication networks, such as an ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

The memory 1203 may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory may be separate and coupled to the processor via communication link 1202. The memory may also be integral to the processor.

The memory 1203 is used for storing computer execution instructions for executing the scheme of the present application, and the processor 1201 controls the execution of the computer execution instructions. The processor 1201 is configured to execute computer-executable instructions stored in the memory 1203, thereby implementing the method for billing management provided by the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In particular implementations, processor 1201 may include one or more CPUs such as CPU0 and CPU1 in fig. 12, for example, as an example.

In particular implementations, the network device may include multiple processors, such as processor 1201 and processor 1207 in fig. 12, for example, as an embodiment. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

In particular implementations, the network device may also include an output device 1205 and an input device 1206, as an example. An output device 1205, in communication with the processor 1201, may display information in a variety of ways. For example, the output device 1205 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 1206 is in communication with the processor 1201 and may receive user input in a variety of ways. For example, the input device 1206 may be a mouse, keyboard, touch screen device, or sensing device, among others.

The network device may be a general-purpose device or a special-purpose device. In particular implementations, the network device may be a server, a wireless terminal device, an embedded device, or a device having a similar structure as in fig. 12. The embodiment of the application does not limit the type of the network equipment.

In the embodiment of the present application, the network device may be divided into the functional units according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

For example, in a case where each functional unit is divided in an integrated manner, fig. 13 shows a schematic structural diagram of a network access device.

As shown in fig. 13, a network access device provided in an embodiment of the present application includes.

A first obtaining unit 1301, where the first obtaining unit 1301 is configured to obtain a first message from a first network management node, where the first message includes a work type, and the work type is used to indicate a first radio link information when a terminal successfully performs cell handover to the first access device;

a second obtaining unit 1302, where the second obtaining unit 1302 is configured to obtain the first radio link information from the terminal after receiving the work type obtained by the first obtaining unit 1301;

a sending unit 1303, where the sending unit 1303 is configured to send the first wireless link information acquired by the second acquiring unit 1302 to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node.

Optionally, the work type is configured to indicate a handover success report, where the handover success report is used to record the first radio link information, and the second obtaining unit 1302 is further configured to:

obtaining a handover success report from the terminal;

the sending unit 1303 is further configured to:

the handover success report acquired by the second acquiring unit 1302 is sent to the second network management node.

Optionally, the first message further includes a data phase, where the data phase is used to indicate at least one target phase of a handover triggering phase, a handover executing phase, or a handover executing completing phase of the terminal to the first access device;

the second obtaining unit 1302 is further configured to:

acquiring first wireless link information of the target phase according to the indication of the data phase, wherein the first wireless link information comprises at least one of the following information: the terminal comprises radio link monitoring information RLM, beam failure detection information BFD, reference signal receiving quality information RSRQ, cell or beam measurement information and corresponding time information and position information when the terminal acquires a switching success report.

Optionally, the first message is obtained by the first network management node from a fifth network management node.

As shown in fig. 14, an embodiment of the present application further provides another network access device, including.

A first obtaining unit 1401, configured to obtain a first message from a first network management node, where the first message includes a work type, where the work type is used to indicate second radio link information when a connection between a terminal and a second access device fails, and the first access device and the second access device form a multi-link data transmission for the terminal;

a second obtaining unit 1402, where the second obtaining unit 1402 is configured to obtain the second radio link information from the terminal after receiving the operation type obtained by the first obtaining unit 1401;

a sending unit 1403, where the sending unit 1403 is configured to send the second radio link information acquired by the second acquiring unit 1402 to a second network management node, so that the second network management node sends the second radio link information to a third network node.

Optionally, the operation type is used to indicate a secondary base station connection failure report, where the secondary base station connection failure report is used to record the second radio link information, and the second obtaining unit 1402 is further configured to:

acquiring a connection failure report of the secondary base station from the terminal;

the sending unit 1403 is further configured to:

the secondary base station connection failure report acquired by the second acquisition unit 1402 is sent to the second network management node.

Optionally, the secondary base station connection failure report includes at least one of the following information: the type of failure of connection failure between the terminal and the second access device, the measurement result of the second access device, a time interval from the time when the terminal receives a second access device replacement command sent by the first access device to the time when the second access device replacement failure occurs, a cell identifier of the second access device in which the replacement failure occurs, frequency point information and identifier information of the terminal.

As shown in fig. 15, an embodiment of the present application further provides another network device, including:

an obtaining unit 1501, where the obtaining unit 1501 is configured to obtain first wireless link information and/or second wireless link information from a second network management node, where the first wireless link information and the second wireless link information are respectively obtained by a first access device according to a work type sent by a first network management node, and the first wireless link information is wireless link information when a terminal successfully performs handover; the second wireless link information is wireless link information when the connection between the terminal and the second access device fails in a multi-link scene, and the first access device and the second access device form multi-link data transmission for the terminal in the multi-link scene;

an analysis unit 1502, the analysis unit 1502 configured to analyze the first radio link information and/or the second radio link information acquired by the acquisition unit 1501 to obtain an analysis result, the analysis result including at least one of a coverage problem or a mobility problem.

Optionally, the acquiring unit 1501 is further configured to:

acquiring a handover success report from the second network management node, wherein the handover success report is used for recording the first radio link information;

the analysis unit 1502 is further configured to:

analyzing the coverage problem of the first access device and the terminal according to the handover success report acquired by the acquisition unit 1501, where the coverage problem includes at least one of weak coverage, coverage hole, and handover coverage.

Optionally, the handover success report includes radio link monitoring information RLM, and the analysis unit 1502 is further configured to:

acquiring the switching time of the terminal switching recorded by a timer in the RLM;

and when the switching time is greater than a preset value, judging that the first access equipment and the terminal have a failure of approaching a wireless link, and judging that the downlink coverage is abnormal.

Optionally, the handover success report includes a number of radio link control, RLC, retransmissions, and the analyzing unit 1502 is further configured to:

and when the RLC retransmission times are larger than a preset value, judging that uplink coverage limitation occurs between the first access equipment and the terminal.

Optionally, the acquiring unit 1501 is further configured to:

acquiring a secondary base station connection failure report from the second network management node, wherein the secondary base station connection failure report is used for recording the second wireless link information;

the analysis unit 1502 is further configured to:

and analyzing the mobility problems of the terminal and the second access equipment according to the secondary base station connection failure report, wherein the mobility problems comprise any one of too early replacement, too late replacement or replacement to a wrong cell.

Optionally, the secondary base station connection failure report includes: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when the second access equipment replacement fails; the analysis unit 1502 is further configured to:

when the time interval is smaller than a first preset value, the third network management node judges that the terminal replaces the second access equipment too early;

and when the time interval is greater than a second preset value, judging that the terminal is replaced too late for the second access equipment, wherein the second preset value is greater than the first preset value.

Optionally, the secondary base station connection failure report includes: when the terminal fails to connect with the second device, the cell identifier, the frequency point information and the identifier information of the terminal of the second access device; the analysis unit 1502 is further configured to:

and judging whether the terminal is replaced to a correct cell or not according to the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment.

Optionally, the network device further includes a sending unit 1503: the sending unit 1503 is configured to send the analysis result to a fourth network management node, so that the fourth network management node adjusts a network parameter according to the analysis result.

Optionally, the sending unit 1503 is further configured to:

obtaining subscription information from the fourth network management node, the subscription information being used to request a subscription to at least one of the following information: the handover success includes at least one of a connection failure report of the secondary base station or a target event, a target period, and a target period;

when the subscription message includes at least one of the handover success report or the connection failure report, the sending unit 1503 sends, to the fourth network management node, an analysis result of the handover success report and/or an analysis result of the connection failure report according to the subscription information;

when the subscription message includes the target period, the sending unit 1503 sends the analysis result to the fourth network management node every other target period;

when the subscription message includes the target event, the sending unit 1503 sends the analysis result to the fourth network management node when the target event is triggered.

Optionally, the sending unit 1503 is further configured to:

the third network management node acquires a request message from the fourth network management node, wherein the request message is used for requesting the analysis result;

and the third network management node sends the analysis result to the fourth network management node according to the request message.

Optionally, the acquiring unit 1501 is further configured to:

and obtaining a feedback message from the fourth network management node, wherein the feedback message includes an adjustment condition of the fourth network management node for adjusting the network parameters.

As shown in fig. 16, an embodiment of the present application further provides another network device, including:

a generating unit 1601, where the generating unit 1601 is configured to generate a first message, where the first message includes a work type, where the work type is used to indicate first radio link information when the terminal successfully performs handover, or, in a multi-link scenario, the work type is used to indicate second radio link information when the terminal fails to connect with a second access device, and the first access device and the second access device perform multi-link data transmission on the terminal;

a sending unit 1602, where the sending unit 1602 is configured to send the first message generated by the generating unit 1601 to the first network management node, so that the first network management node sends the first message to the first access device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed communication method, relay device, host base station, and computer storage medium may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A method for acquiring radio link information, comprising:

the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, and the working type is used for indicating first wireless link information when a terminal is successfully switched;

the first access equipment acquires the first wireless link information after receiving the working type;

the first access equipment sends the first wireless link information to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node.

2. The method of claim 1, wherein the working type is used to indicate a handover success report, the handover success report is used to record the first radio link information, and the first access device obtains the first radio link information from the terminal after receiving the working type, and the method includes:

the first access equipment acquires the switching success report from the terminal;

the first access device sends the first radio link information to a second network management node, including:

the first access device sends the handover success report to the second network management node.

3. The method of claim 2, wherein the first message further includes a data phase, and the data phase is used to indicate at least one target phase of a handover triggering phase, a handover executing phase, or a handover executing completion phase of the terminal to the first access device;

the obtaining, by the first access device, the first radio link information from the terminal after receiving the operation type includes:

the first access device obtains first radio link information of the target phase, where the first radio link information includes at least one of the following information: the terminal comprises radio link monitoring information RLM, beam failure detection information BFD, reference signal receiving quality information RSRQ, cell or beam measurement information and corresponding time information and position information when the terminal acquires a switching success report.

4. The method according to any one of claims 1 to 3, wherein the first message is obtained by the first network management node from a fifth network management node.

5. A method for acquiring radio link information, comprising:

the method comprises the steps that first access equipment acquires a first message from a first network management node, wherein the first message comprises a working type, the working type is used for indicating second wireless link information when a terminal and second access equipment are failed to be connected, and the first access equipment and the second access equipment form multi-link data transmission for the terminal;

the first access equipment acquires the second wireless link information from the terminal after receiving the working type;

the first access device sends the second wireless link information to a second network management node, so that the second network management node sends the second wireless link information to a third network node.

6. The method of claim 5, wherein the operation type is used to indicate a secondary base station connection failure report, the secondary base station connection failure report is used to record the second radio link information, and the obtaining, by the first access device, the second radio link information from the terminal according to the operation type indication comprises:

the first access equipment acquires a connection failure report of an auxiliary base station from the terminal;

the first access device sends the second radio link information to a second network management node, including:

and the first access equipment sends the connection failure report of the secondary base station to the second network management node.

7. The method of claim 6, wherein the secondary base station connection failure report comprises at least one of the following information: the method comprises the following steps of determining the connection failure type of the terminal and the second access equipment, the measurement result of the second access equipment, the time interval from the time when the terminal receives a second access equipment replacement command sent by the first access equipment to the time when the second access equipment replacement failure occurs, the cell identification of the second access equipment with the replacement failure, frequency point information and the identification information of the terminal.

8. The method according to any of claims 5 to 7, wherein the first message is obtained by the first network management node from a fifth network management node.

9. A method for analyzing radio link information, comprising:

a third network management node acquires first wireless link information and/or second wireless link information from a second network management node, wherein the first wireless link information and the second wireless link information are respectively acquired by first access equipment according to a work type sent by the first network management node, and the first wireless link information is wireless link information when a terminal is successfully switched; the second wireless link information is wireless link information when the connection between the terminal and the second access equipment fails in a multi-link scene, and the first access equipment and the second access equipment form multi-link data transmission for the terminal in the multi-link scene;

the third network management node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, wherein the analysis result comprises at least one of a coverage problem or a mobility problem.

10. The method according to claim 9, wherein the third network management node obtaining the first radio link information and/or the second radio link information from the second network management node comprises:

the third network management node acquires a handover success report from the second network management node, wherein the handover success report is used for recording the first radio link information;

the third network node analyzes the first wireless link information and/or the second wireless link information to obtain an analysis result, including:

and the third network management node analyzes the coverage problems of the first access equipment and the terminal according to the switching success report, wherein the coverage problems comprise at least one of weak coverage, coverage holes and cross-area coverage.

11. The method of claim 10, wherein the handover success report includes radio link monitoring information (RLM), and wherein the third network node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, comprising:

the third network management node acquires the switching time of the terminal switching recorded by a timer in the RLM;

and when the switching time is greater than a preset value, the third network management node judges that the radio link approaching failure occurs between the first access device and the terminal, and the downlink coverage is abnormal.

12. The method according to claim 10 or 11, wherein the handover success report comprises a number of radio link control, RLC, retransmissions, and wherein the third network node analyzes the first radio link information and/or the second radio link information to obtain an analysis result, comprising:

and when the RLC retransmission times are larger than a preset value, the third network management node judges that uplink coverage limitation occurs between the first access device and the terminal.

13. The method according to any of claims 9 to 12, wherein the third network management node obtaining the first radio link information or the second radio link information from the second network management node comprises:

a third network management node acquires an auxiliary base station connection failure report from the second network management node, wherein the auxiliary base station connection failure report is used for recording the second wireless link information;

and the third network management node analyzes the mobility problems of the terminal and the second access equipment according to the secondary base station connection failure report, wherein the mobility problems comprise any one of too early replacement, too late replacement or replacement to a wrong cell.

14. The method of claim 13, wherein the secondary base station connection failure report comprises: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when a second access equipment replacement failure occurs; the third network node analyzes the first wireless link information and/or the second wireless link information to obtain an analysis result, including:

and when the time interval is greater than a second preset value, the third network management node judges that the terminal is replaced too late for the second access device, and the second preset value is greater than the first preset value.

15. The method of claim 13 or 14, wherein the secondary base station connection failure report comprises: when the connection between the terminal and the second equipment fails, the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment; the third network node analyzes the first wireless link information and/or the second wireless link information to obtain an analysis result, including:

and the third network management node judges whether the terminal is changed to a correct cell or not according to the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment.

16. The method of any of claims 9 to 15, further comprising: and the third network management node sends the analysis result to a fourth network management node, so that the fourth network management node adjusts the network parameters according to the analysis result.

17. The method of claim 16, wherein the third network management node sends the analysis result to a fourth network management node, comprising:

the third network management node acquires subscription information from the fourth network management node, wherein the subscription information is used for requesting to subscribe at least one of the following information: a target period and a target event, at least one of the handover success report or the secondary base station connection failure report;

when the subscription message includes at least one of the handover success report or the connection failure report, the third network management node sends an analysis result of the handover success report and/or an analysis result of the connection failure report to the fourth network management node according to the subscription information;

when the subscription message includes the target period, the third network management node sends the analysis result to the fourth network management node every interval of the target period;

when the subscription message includes the target event, the third network management node sends the analysis result to the fourth network management node when the target event is triggered.

18. The method of claim 16, wherein the third network management node sends the analysis result to a fourth network management node, comprising:

19. The method according to any one of claims 16 to 18, wherein after the third network management node sends the analysis result to the fourth network management node, the method further comprises:

and the third network management node acquires a feedback message from the fourth network management node, wherein the feedback message comprises the adjustment condition of the fourth network management node for adjusting the network parameters.

20. A method for indicating radio link information, comprising:

a fifth network management node generates a first message, wherein the first message comprises a working type, the working type is used for indicating first wireless link information when a terminal is successfully switched, or in a multi-link scene, the working type is used for indicating second wireless link information when the connection between the terminal and second access equipment fails, and the first access equipment and the second access equipment form multi-link data transmission for the terminal;

the fifth network management node sends the first message to a first network management node, so that the first network management node sends the first message to the first access device.

21. A network access device, comprising:

a first obtaining unit, configured to obtain a first message from a first network management node, where the first message includes a work type, and the work type is used to indicate first radio link information when a terminal successfully performs handover;

a second obtaining unit, configured to obtain the first radio link information from the terminal after receiving the work type obtained by the first obtaining unit;

a sending unit, configured to send the first wireless link information acquired by the second acquiring unit to a second network management node, so that the second network management node forwards the first wireless link information to a third network management node.

22. The network access device of claim 21, wherein the operation type is configured to indicate a handover success report, the handover success report is configured to record the first radio link information, and the second obtaining unit is further configured to:

obtaining the handover success report from the terminal;

the sending unit is further configured to:

and sending the switching success report acquired by the second acquisition unit to the second network management node.

23. The network access equipment of claim 22, wherein the first message further includes a data phase, and the data phase is used to indicate at least one target phase of a handover triggering phase, a handover executing phase, or a handover executing completing phase of the terminal to the first access equipment;

the second obtaining unit is further configured to:

acquiring first wireless link information of the target phase, wherein the first wireless link information comprises at least one of the following information: the terminal comprises radio link monitoring information RLM, beam failure detection information BFD, reference signal receiving quality information RSRQ, cell or beam measurement information and corresponding time information and position information when the terminal acquires a switching success report.

24. The network access equipment according to any one of claims 21 to 23, wherein the first message is obtained by the first network management node from a fifth network management node.

25. A network access device, comprising:

a first obtaining unit, configured to obtain a first message from a first network management node, where the first message includes a work type, the work type is used to indicate second radio link information when a connection between a terminal and a second access device fails, and the first access device and the second access device perform multi-link data transmission on the terminal;

a second obtaining unit, configured to obtain the second radio link information from the terminal after receiving the work type obtained by the first obtaining unit;

a sending unit, configured to send the second radio link information acquired by the second acquiring unit to a second network management node, so that the second network management node sends the second radio link information to a third network node.

26. The network access equipment of claim 25, wherein the operation type is used to indicate a secondary base station connection failure report, wherein the secondary base station connection failure report is used to record the second radio link information, and wherein the second obtaining unit is further configured to:

acquiring the connection failure report of the auxiliary base station from the terminal;

the sending unit is further configured to:

and sending the auxiliary base station connection failure report acquired by the second acquisition unit to the second network management node.

27. The network access device of claim 26, wherein the secondary base station connection failure report includes at least one of the following information: the method comprises the following steps of determining the connection failure type of the terminal and the second access equipment, the measurement result of the second access equipment, the time interval from the time when the terminal receives a second access equipment replacement command sent by the first access equipment to the time when the second access equipment replacement failure occurs, the cell identification of the second access equipment with the replacement failure, frequency point information and the identification information of the terminal.

28. The network access equipment according to any one of claims 25 to 27, wherein the first message is obtained by the first network management node from a fifth network management node.

29. A network device, comprising:

an obtaining unit, configured to obtain first wireless link information and/or second wireless link information from a second network management node, where the first wireless link information and the second wireless link information are information obtained by a first access device according to a work type sent by a first network management node, and the first wireless link information is wireless link information when a terminal is successfully handed over; the second wireless link information is wireless link information when the connection between the terminal and the second access equipment fails in a multi-link scene, and the first access equipment and the second access equipment form multi-link data transmission for the terminal in the multi-link scene;

an analysis unit, configured to analyze the first radio link information and/or the second radio link information acquired by the acquisition unit to obtain an analysis result, where the analysis result includes at least one of a coverage problem or a mobility problem.

30. The network device of claim 29, wherein the obtaining unit is further configured to:

the analysis unit is further configured to:

and analyzing the coverage problems of the first access device and the terminal according to the switching success report acquired by the acquisition unit, wherein the coverage problems include at least one of weak coverage, coverage holes and handover coverage.

31. The network device of claim 30, wherein the handover success report includes radio link monitoring information (RLM), and wherein the analysis unit is further configured to:

32. The network device according to claim 30 or 31, wherein the handover success report comprises a number of radio link control, RLC, retransmissions, and wherein the analysis unit is further configured to:

33. The network device according to any of claims 29 to 32, wherein the obtaining unit is further configured to:

acquiring a secondary base station connection failure report from the second network management node, wherein the secondary base station connection failure report is used for recording the second radio link information;

the analysis unit is further configured to:

34. The network device of claim 33, wherein the secondary base station connection failure report comprises: the terminal acquires a time interval from the time when a second access equipment replacement command sent by the first access equipment is acquired to the time when a second access equipment replacement failure occurs; the analysis unit is further configured to:

and when the time interval is greater than a second preset value, judging that the terminal replaces the second access equipment too late, wherein the second preset value is greater than the first preset value.

35. The network device of claim 33 or 34, wherein the secondary base station connection failure report comprises: when the connection between the terminal and the second equipment fails, the cell identifier, the frequency point information and the identifier information of the terminal of the second access equipment; the analysis unit is further configured to:

36. The network device according to any of claims 29 to 35, wherein the network device further comprises a sending unit: the sending unit is configured to send the analysis result to a fourth network management node, so that the fourth network management node adjusts a network parameter according to the analysis result.

37. The network device of claim 36, wherein the sending unit is further configured to:

when the subscription message includes at least one of the handover success report or the connection failure report, the sending unit sends, to the fourth network management node, an analysis result of the handover success report and/or an analysis result of the connection failure report according to the subscription information;

when the subscription message includes the target period, the sending unit sends the analysis result to the fourth network management node at intervals of the target period;

when the subscription message includes the target event, the sending unit sends the analysis result to the fourth network management node when the target event is triggered.

38. The network device of claim 36, wherein the sending unit is further configured to:

39. The network device according to any of claims 36 to 38, wherein the obtaining unit is further configured to:

40. A network device, comprising:

a generating unit, configured to generate a first message, where the first message includes a work type, where the work type is used to indicate first radio link information when a terminal successfully performs handover, or, in a multi-link scenario, the work type is used to indicate second radio link information when a connection between the terminal and a second access device fails, and the first access device and the second access device perform multi-link data transmission on the terminal;

a sending unit, configured to send the first message generated by the generating unit to a first network management node, so that the first network management node sends the first message to the first access device.

41. A network access device, the network device comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein;

the interaction device is used for acquiring an operation instruction input by a user;

the processor is configured to execute program instructions stored in the memory to perform the method of any of claims 1-4.

42. A network access device, the network device comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein;

the processor is configured to execute program instructions stored in the memory to perform the method of any of claims 5-8.

43. A network device, characterized in that the network device comprises: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein;

the processor is configured to execute program instructions stored in the memory to perform the method of any of claims 9-19.

44. A network device, characterized in that the network device comprises: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein;

the processor is configured to execute program instructions stored in the memory to perform the method of claim 20.

45. A computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method of any of claims 1-4.

46. A computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method of any of claims 5-8.

47. A computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method of any of claims 9-19.

48. A computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method of claim 20.