CN113840340B

CN113840340B - Wireless link information acquisition, analysis and indication method, equipment and medium

Info

Publication number: CN113840340B
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: 2023-11-03
Anticipated expiration: 2040-06-24
Also published as: CN113840340A; WO2021259225A1

Abstract

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

Description

Wireless link information acquisition, analysis and indication method, equipment and medium

Technical Field

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

Background

When a terminal, such as 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 (mobility robust optimization, MRO) is introduced for the purpose of monitoring, identifying and counting inter-system handover, and then determining that relevant inter-system handover parameters are adjusted to change the difficulty level of inter-system handover, so as to minimize inter-system handover anomalies and reduce the decrease of inter-system handover performance as much as possible.

In the 5G new radio, NR, MRO optimization was introduced, and two new scenarios were introduced in addition to MRO optimization scenarios inheriting long term evolution (long term evolution, LTE), such as handover too early, handover too late, and handover to a wrong cell. A new MRO scenario is applied under a multi-link data transmission (multi-radio dual connectivity, MR-DC) architecture, in which the secondary base station is replaced too early, too late, and to the wrong secondary base station, and the three scenarios are solved by collecting the radio link failure reports of the secondary base station; another new MRO scenario is one that addresses the possible occurrence of "near radio link failure (near-RLF)" on the premise of successful handover.

The MRO needs to acquire data on the acquired network elements, such as signaling of an interface between the base station and the core network, etc., so as to determine to adjust related inter-system handover parameters, and the acquisition of the network element data acquires the data on the network element according to subscription requirements 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 acquired data to the second network management node.

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

Accordingly, the above-mentioned problems in the prior art have yet to be improved.

Disclosure of Invention

The embodiment of the application provides a method, a device 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 the foregoing, a first aspect of the present application provides a radio link information acquisition method, 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 work type, and the work type is used for indicating first wireless link information when a terminal is successfully switched; alternatively, the first access device may be a base station, the first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), the first message may be an activation message, for example, trace session activation message, or may be a newly defined message, and the terminal may be handed over to a cell where the first access device is located, or may be handed over to a cell where other access devices are located; the first access equipment acquires the first wireless link information from the terminal after receiving the work type; the first access device sends the first wireless link information to a second network management node to cause the second network management node to forward the first wireless link information to a third network management node. Optionally, the second network management node may be a trace collection entity (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 expected to be acquired by the second network management node is the first wireless link information when the terminal successfully switches by acquiring the type of work sent by the first network management node, so that the second network management node can obtain data required by analysis of the near-RLF problem in the scene that the terminal successfully switches to the base station.

With reference to the first aspect, in a first possible implementation manner, the operation type is used to indicate a report of handover success, where the report of handover success is used to record the first wireless link information, and the first access device obtains the first wireless link information from the terminal after receiving the operation type, and includes: the first access equipment acquires a handover success report from the terminal; the first access device sending the first wireless link information to a second network management node, comprising: 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 of successful handover of the terminal 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 stage, where the data stage is used to instruct the terminal to at least one target stage of a handover trigger stage, a handover execution stage, or a handover execution completion stage of the first access device; the first access device obtaining the first wireless link information from the terminal after receiving the work type, including: the first access device obtains first wireless link information of the target phase, the first wireless link information including at least one of: radio link monitoring information RLM, beam failure detection information BFD, reference signal reception quality information RSRQ, cell or beam measurement information, and time information and location information corresponding to when the terminal acquires a handover success report. Optionally, timers T310, T312 may be included in the RLM, BFD includes reference signal received power (reference signal received power, RSRP) detected at the time of BFD transmission, time information may be absolute time or relative time, and location information may be longitude, latitude, and altitude.

In this embodiment, through the indication of the data stage, the measurement information in the handover success report has finer data granularity, and the first radio link data of different data stages in the process of switching the terminal to the first access device can be further distinguished, so that the second network management node can analyze the near-RLF problem of different data stages.

With reference to the first aspect and any one of the 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, where the fifth network management node may be an NMS, an EMS, a management service (management service, mns) Producer (Mns Producer), a Mns Consumer (Mns Consumer), or an MAE.

In this embodiment, the working type in the first message is generated by the fifth network management node, and if the first message includes a data stage, the data stage may also be generated by the fifth network management node, and the fifth network management node generates the first message and 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.

The second aspect of the present application provides a method for acquiring radio link information, including: the first access equipment acquires a first message from a first network management node, wherein the first message comprises a work type, the work 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; alternatively, the first access device may be a primary base station, the second access device may be a secondary base station, the first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), the first message may be an activation message, such as trace session activation message, or may be a newly defined message; the first access device acquires the second wireless link information from the terminal after receiving the work type; the first access device sends the second radio link information to a second network management node to cause the second network management node to send the second radio link information to a third network node. Optionally, the second network management node may be a trace collection entity (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 according to the indication of the working type, knows that the type of information to be obtained is the second wireless link information when the connection between the terminal and the auxiliary base station fails, so that the message of the type can be obtained, and the data required by problem analysis in the scenario of the connection failure between the terminal and the auxiliary base station is obtained.

With reference to the second aspect, in a first possible implementation manner, the obtaining, 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 equipment acquires an auxiliary base station connection failure report from the terminal, wherein the auxiliary base station connection failure report is used for recording the second wireless link information; the first access device sending the second radio link information to a second network management node, comprising: 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 condition of 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 secondary base station connection failure report includes at least one of the following information: the failure type of the connection failure between the terminal and the second access device may include T310 failure, random access problem, retransmission of radio link control RLC to the maximum number, failure of secondary base station (secondary cell group, SCG) synchronization configuration, failure of SCG reconfiguration, and failure of SRB3 (SRB 3 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 may include cell information, frequency point information, and information of 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, which may be SSB, or CSI-RS, and the measurement result of the second access device from receiving the second access device replacement command sent by the first access device to the second access device where the second access device replacement failure occurs, the cell identifier of the second access device where the replacement failure occurs, the frequency point information of the terminal, and the information of the terminal.

In this embodiment, according to the above content recorded in the auxiliary base station connection failure report, the second network management node may determine the reason of the connection failure between the terminal and the auxiliary base station, for example, determine whether the terminal is replaced with the auxiliary base station too early or too late through a time interval, and determine whether the terminal is replaced with the correct auxiliary base station through the cell information, the frequency point information and the identification information of the terminal of the second access device, so as to analyze the specific reason of the connection failure between the terminal and the auxiliary 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, where the fifth network management node may be a NMS, EMS, mns Producer (Mns Producer), a Mns Consumer (Mns Consumer), or an MAE.

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

A third aspect of the present application provides a radio link information analysis method, including: the third network management node acquires first wireless link information and/or second wireless link information from the second network management node, wherein the first wireless link information and the second wireless link information are information acquired by the first access equipment according to the work type sent by the first network management node, and the first wireless link information is wireless link information when the 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 wireless link information and/or the second wireless link information to obtain an analysis result, wherein the analysis result comprises at least one of coverage problems or mobility problems; alternatively, the first access device may be a base station, the first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), the type of operation 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 (trace collection entity, TCE), and the third network management node may be an MDAS Producer.

In this embodiment, after receiving the indication of the first network management node, the first access device obtains the first wireless link information and/or the second wireless link information, and forwards the first wireless link information and/or the second wireless 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 wireless link information, a near-RLF problem between the terminal and the first access device in a state of successfully executing cell handover, or, in a multi-link scenario, a connection problem between the terminal and the second access device by the third network management node can be analyzed according to the second wireless link information.

With reference to the third aspect, in a first possible implementation manner, the obtaining, 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 wireless link information; the third network node analyzing 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 problem of the first access device and the terminal according to the handover success report, wherein the coverage problem comprises at least one of weak coverage, coverage hole and handover coverage.

In this embodiment, the first access device sends the acquired first wireless link information to the second network management node in a manner of a handover success report, and the second network management node sends the first wireless 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 first possible implementation manner of the third aspect, in a second possible implementation manner, the measurement 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 switching 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 equipment and the terminal have close wireless link failure and downlink coverage is abnormal.

In this embodiment, the state of the RLM timer is used to identify a downlink coverage problem, for example, the RLM timer is "T310expire", that is, when the signal of the serving cell is poor during the T310 timer, the terminal may need to switch, but the terminal receives a delay of the switching command due to the poor signal of the serving cell, so that T310 times out, and RLF occurs. The third network node may identify a downstream 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 measurement information includes a number of radio link control RLC retransmissions, and the third network node obtains an analysis result according to the first radio link information, including: and when the number of the RLC retransmission times is larger than a preset value, the third network management node judges that uplink coverage is limited between the first access equipment and the terminal.

In this embodiment, the RLC retransmission number may be used to identify an uplink coverage problem, for example, when downlink signal quality is good and uplink coverage is limited, the terminal may have an uplink transmission problem, that is, the uplink RLC retransmission number may be high, so that the third network management node determines whether the near-RLF problem occurs in uplink coverage by analyzing the RLC retransmission number 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 obtaining, 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 analyzing the first radio link information and/or the second radio link information to obtain an analysis result, including: the third network management node analyzes mobility problems of the terminal and the second access device according to the secondary base station connection failure report, wherein the mobility problems comprise any of early replacement, late replacement or replacement to an error cell.

In this embodiment, the first access device sends the acquired second radio link information to the second network management node in the manner of a secondary base station connection failure report, 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 obtains a time interval from a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure; the third network node analyzing 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 is replaced with the second access equipment too early; and when the time interval is larger than a second preset value, the third network management node judges that the terminal is too late to replace the second access equipment, and the second preset value is larger than the first preset value.

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

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 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 management node obtains the analysis result according to the second wireless link information, including: the third network management node judges whether the terminal is replaced to a correct cell according to the cell identification of the second access device, the frequency point information and the identification information of the terminal.

In this embodiment, the third network management node may determine, through the identification information of the terminal, the cell identification of the second access device, and the frequency point information, whether the terminal is replaced with the correct second access device, that is, whether the correct terminal is replaced with the correct secondary base station, so as to analyze the connection failure cause of the terminal and the secondary base station.

With reference to the first or sixth possible implementation manners 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 network parameters according to the analysis result. Optionally, the fourth network management node is an MDAS Consumer.

In this embodiment, the third network management node is configured to perform analysis according to the information on the first wireless link or the second wireless 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 obtains subscription information from the fourth network management node, the subscription information being for requesting subscription to at least one of: the successful handover includes or the secondary base station connection failure report at least one of, a target period and a target event; when the subscription message comprises 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 comprises 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 comprises 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 expected to be obtained by the fourth network management node through the message range in the subscription message, so that the third destination management node may send at least one of a handover success report or the secondary base station connection failure report 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 of 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 obtains 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, when the fourth network management node needs to obtain the analysis result, the fourth network management node directly sends a request message to the third network management node, so that 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 sending, by the third network management node, 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, wherein the feedback message comprises the adjustment condition of the fourth network management node for adjusting the network parameters of the terminal and the first access equipment.

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 radio link information indicating method, including: 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 a terminal is successfully switched, or in a multi-link scene, the working type is used for indicating second wireless link information when the 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 fifth network management node sends the first message to a first network management node to cause the first network management node to send 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 indication of the work type is implemented by the fifth network management node.

A fifth aspect of the present application provides a network access device, comprising: the first acquisition unit is used for acquiring a first message from the first network management node, wherein the first message comprises a work type which is used for indicating first wireless link information when the terminal is successfully switched; the second acquisition unit is used for acquiring the first wireless link information from the terminal after receiving the work type acquired by the first acquisition unit; and the sending unit is used for sending the first wireless link information acquired by the second acquisition 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. Alternatively, the first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), and the first message may be an activation message, for example, trace session activation message, or may be a newly defined message, and the terminal may be handed over to a cell where the first access device is located, or may be handed over to a cell where other access devices are located.

With reference to the fifth aspect, in a first possible implementation manner, the working type is used to indicate a report of handover success, where the report of handover success is used to record the first radio link information, and the second obtaining unit is further configured to: acquiring 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 stage, where the data stage is used to instruct the terminal to at least one target stage of a handover trigger stage, a handover execution stage, or a handover execution completion stage of the first access device; the second acquisition unit is further configured to: acquiring first wireless link information of the target stage, wherein the first wireless link information comprises at least one of the following information: radio link monitoring information RLM, beam failure detection information BFD, reference signal reception quality information RSRQ, cell or beam measurement information, and time information and location information corresponding to when the terminal acquires a handover success report. Optionally, timers T310, T312 may be included in the RLM, BFD includes reference signal received power (reference signal received power, RSRP) detected at the time of BFD transmission, time information may be absolute time or relative time, and location information may be longitude, latitude, and altitude.

With reference to the fifth aspect and any one of the possible implementation manners 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, where the fifth network management node may be an NMS, an EMS, a management service (management service, mns) Producer (Mns Producer), a Mns Consumer (Mns Consumer), or a MAE.

A sixth aspect of the present application provides a network access device, comprising: the first acquisition unit is used for acquiring a first message from the first network management node, wherein the first message comprises a work type, the work 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; alternatively, 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 (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), the first message may be an activation message, such as trace session activation message, or may be a newly defined message; the second acquisition unit is used for acquiring the second wireless link information from the terminal after receiving the work type acquired by the first acquisition unit; and the sending unit is used for sending the second wireless link information acquired by the second acquisition unit to a second network management node so that the second network management node sends the second wireless link information to a third network node. Optionally, the second network management node may be a trace collection entity (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 an auxiliary base station connection failure report from the terminal, wherein the auxiliary base station connection failure report is used for recording the second wireless link information; the transmitting 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.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the secondary base station connection failure report includes at least one of the following information: the failure type of the connection failure between the terminal and the second access device, optionally, the failure type includes T310 failure, random access problem, retransmission of radio link control RLC to the maximum number, failure of secondary base station (secondary cell group, SCG) synchronization configuration, failure of SCG reconfiguration, and failure of SRB3 (SRB 3 is a signaling radio bearer for signaling direct transmission between the secondary base station and the terminal), etc., the measurement result of the second access device may optionally include cell information, frequency point information, and information of RSRP, RSRQ, etc., 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, RSRQ, etc., the beam may be SSB, or CSI-RS, and the measurement result of the second access device from receiving the second access device replacement command sent by the first access device to the time interval when the second access device fails, the cell identifier of the second access device where the replacement failure occurs, the frequency point information of the terminal, etc.

With reference to the sixth aspect and 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, where the fifth network management node may be an NMS, an EMS, a management service (management service, mns) Producer (Mns Producer), a Mns Consumer (Mns Consumer), or a MAE.

A seventh aspect of the present application provides a network device, comprising: the system comprises an acquisition unit, a switching unit and a switching unit, wherein the acquisition unit is used for acquiring 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 information acquired by a first access device 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; alternatively, the first access device may be a base station, the first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), the type of operation 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 (trace collection entity, TCE), and the third network management node may be an MDAS Producer. And the analysis unit is used for analyzing the first wireless link information and/or the second wireless link information to obtain an analysis result, wherein the analysis result comprises at least one of coverage problems or mobility problems.

With reference to the seventh aspect, in a first possible implementation manner, the acquiring unit is further configured to: acquiring a handover success report from the second network management node, the handover success report being used to record the first wireless link information; the analysis unit is further configured to: and analyzing the coverage problem of the first access equipment and the terminal according to the handover success report acquired by the acquisition unit, wherein the coverage problem comprises at least one of weak coverage, coverage loopholes and cross-region 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 analyzing unit is further configured to: acquiring the switching time of the terminal to the first access device recorded by a timer in the RLM, optionally, the timer is T310 expire; when the switching time is greater than a preset value, judging that the first access equipment and the terminal have close wireless link failure and downlink coverage abnormality.

In this embodiment, the state of the RLM timer is used to identify a downlink coverage problem, for example, the RLM timer is "T310expire", that is, when the signal of the serving cell is poor during the T310 timer, the terminal may need to switch, but the terminal receives a delay of the switching command due to the poor signal of the serving cell, so that T310 times out, and RLF occurs. So that downstream coverage problems can be identified by the timer expiration.

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

In this embodiment, RLC retransmission times may be used to identify uplink coverage problems, for example, when downlink signal quality is good and uplink coverage is limited, a terminal may have uplink transmission problems, that is, uplink RLC retransmission times may be high, so as to determine whether a near-RLF problem occurs in uplink coverage by analyzing RLC retransmission times in a 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 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 analysis unit is further configured to: and analyzing mobility problems of the terminal and the second access equipment according to the connection failure report of the auxiliary base station, wherein the mobility problems comprise any of early replacement, 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 obtains a time interval from a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure; the analysis unit is further configured to: when the time interval is smaller than a first preset value, the terminal is judged to be too early to replace the second access equipment; and when the time interval is larger than a second preset value, judging that the terminal is too late to replace the second access equipment, wherein the second preset value is larger 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 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: and judging whether the terminal is replaced to a correct cell or not according to the cell identification of the second access equipment, the frequency point information and the identification information of the terminal.

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

With reference to the seventh aspect and the first to sixth possible implementation manners of the seventh aspect, in a seventh possible implementation manner, the device 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 Consumer.

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 obtains subscription information from the fourth network management node, the subscription information being for requesting subscription to at least one of: the successful handover includes or the secondary base station connection failure report at least one of, a target period and a target event; when the subscription message comprises 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 comprises 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 comprises 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: acquiring 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, so that 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 acquiring unit is further configured to: and acquiring 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 of the terminal and the first access equipment.

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 fourth network management node for adjusting the network parameter may be known through the feedback message.

An eighth aspect of the present application provides a network device, comprising: the generating unit is used for generating a first message, wherein the first message comprises a work type, the work type is used for indicating first wireless link information when the terminal is successfully switched, or in a multi-link scene, the work type is used for indicating second wireless link information when the terminal is failed to be connected with second access equipment, and the first access equipment and the second access equipment form multi-link data transmission for the terminal; and the sending unit is used for sending 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 equipment.

A ninth aspect of the present application provides a network access device, the network device comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory, the 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 and to perform a method as described in 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, comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory, the 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 and to perform a method as described in 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 comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory, the 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 and to perform a method as described in 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 comprising: an interaction device, an input/output (I/O) interface, a processor, and a memory, the 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 and to perform a method as described in any one of the possible implementations of the fourth aspect and the fourth aspect.

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

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

A fifteenth aspect of the present application provides a computer readable storage medium comprising instructions which, when run on a computer device, cause the computer device to perform the method of 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 which, when run on a computer device, cause the computer device to perform the method according to any one of the possible implementations of the fourth and fourth aspects.

From the above technical solutions, the embodiment of the present application has the following advantages:

the embodiment of the application provides a wireless link information acquisition method, 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 work type, and the work 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 from the terminal after receiving the work type; the first access device sends the first wireless link information to a second network management node to cause the second network management node to forward the first wireless link information to a third network management node. The second network management node can acquire the information of the first wireless link when the terminal successfully performs cell switching to the first access equipment through the indication of the working type to the first wireless link.

The embodiment of the application provides a wireless link information acquisition method, which comprises the following steps: the first access equipment acquires a first message from a first network management node, wherein the first message comprises a work type, the work 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 first access device acquires the second wireless link information from the terminal after receiving the work type; the first access device sends the second radio link information to a second network management node to cause the second network management node to send the second radio link information to a third network node. The second network management node can acquire the second wireless link information when the connection between the terminal and the second access equipment fails through the indication of the working type to the second wireless link.

The embodiment of the application provides a wireless link information analysis method, which comprises the following steps: the third network management node acquires first wireless link information and/or second wireless link information from the second network management node, wherein the first wireless link information and the second wireless link information are information acquired by the first access equipment according to the work type sent by the first network management node, and the first wireless link information is wireless link information when the 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, the analysis result comprising 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 under the condition that the cell switching is successfully executed 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 under the multi-link scene.

The embodiment of the application provides a wireless link information indication method, 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 terminal is failed to be connected with second access equipment, 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 to cause the first network management node to send the first message to the first access device. The fifth network management node generates a first message and sends 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 according to an embodiment of the present application;

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

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

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

fig. 12 is a schematic diagram of an apparatus 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

The embodiment of the application provides a method, a device and a medium for acquiring, analyzing and indicating wireless link information, which can solve the problem that a network management node cannot acquire specified type data by sending a working type cell.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise 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.

When a terminal, such as 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 (mobility robust optimization, MRO) is introduced for the purpose of monitoring, identifying and counting inter-system handover, and then determining to adjust relevant inter-system handover parameters to change the difficulty level of inter-system handover, so as to minimize inter-system handover anomalies and reduce the decrease of inter-system handover performance as much as possible.

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

Optionally, the network management node may be a service (management data analytics service, MDAS) for managing data analysis, as shown in fig. 1, where the MDAS for managing data analysis includes a data analysis module analysis 101, which is an MDAS Producer, i.e. a provider of MDA functions, for analyzing the wireless link condition according to the data collected by trace; the MDAS Consumer is not shown in the MDAS Consumer diagram, is a Consumer with an MDAS function, is connected with analysis and is used for adjusting network parameters of the network element according to an analysis result of the MDAS Producer; the intelligence is a data decision unit 102, the data is data 103, and may be any data, the data collection is a functional entity 104 for collecting data, such as a trace collection entity (trace collection entity, TCE), for collecting data reported by a base station, and the organization & control is an execution unit 105, i.e. an entity that is finally responsible for executing optimization.

Currently, trace cannot acquire relevant data of MR-DC and near-RLF, and thus cannot supply a network management node to analyze relevant problems of the scene.

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

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

As shown in fig. 2, a mobility management entity (mobility management entity, MME) or a serving gateway (S-GW) forms a core network (evolved packet core, EPC) of the system, an en-gNB is a 5G base station interfacing with the core network, an eNB is a 4G base station, and en-gNB and eNB form an evolved universal terrestrial radio access (evolved universal terrestrial radio access, E-UTRA) of the system.

The first application scenario of the embodiment of the present application is that when the terminal successfully switches to the cell where the base station is located, the signal strength is fluctuating, and therefore, a near-radio link failure (near radio link failure, near-RLF) may occur. For this near-RLF case, the network management node also needs to acquire corresponding radio link data, so as to make corresponding adjustments.

The second application scenario of the embodiment of the application is a multi-link scenario, in which the eNB is a main base station, the en-gNB is an auxiliary base station, the main base station and the auxiliary base station form multi-link data transmission (multi-radio dual connectivity, MR-DC) with the terminal, when the terminal performs cell switching, the terminal replaces the auxiliary base station under the instruction of the main base station, and at this time, the terminal and the auxiliary base station may possibly have connection failure before, for example, the auxiliary base station is switched too early or too late, or the terminal is switched to the wrong auxiliary base station. For these error conditions, the network management node needs to acquire the radio link data in the MR-DC scenario, so as to make corresponding adjustments.

The method provided by the embodiment of the application is used for a tracking management framework, wherein the tracking management framework is used for collecting the measurement data of the terminal, the tracking management framework comprises tracking management entities (TCE, trace collection entity) which are mainly used for collecting the measurement data of the terminal, and the data collection can be triggered by a network management entity or by 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 (Management Service, mnS) and management function (Management Function, mnF). Wherein the management service provides management capabilities. The management service consumer accesses 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 user of the management service (e.g., an operator) provides functions and contents to the consumer of the management service so that the consumer of the management service decides how to use according to the scenario. The user of the management service may be referred to herein as MnS Producer and the Consumer of the management service may be referred to herein as MnS Consumer.

The method provided by the embodiment of the application is used for managing a data analysis service (MDAS, management data analytics management service) architecture, which is a management closed loop comprising analysis, decision, execution and Observation (observion), wherein the management closed loop is executed through collected data. The management closed loop can provide analysis capability to the outside. Where the analysis capability may be understood as MDAS Producer, i.e. the provider of the MDA function, and the Consumer using the analysis result may be understood as MDAS Consumer.

Therefore, the embodiment of the application provides a wireless link information acquisition method, which is used for solving the problem that a network management node cannot acquire the data of a specified type by sending the data of the specified type by a network management node, and is particularly applied to the following two scenes: 1. and the terminal switches the near-RLF problem under the successful scene to the base station. 2. And the connection between the terminal and the auxiliary base station fails in the MR-DC scene. In order to facilitate understanding, the method provided by the embodiment of the application is described in detail below with reference to the drawings.

1. And the terminal switches the near-RLF problem under the successful scene to the base station.

In this embodiment, after the terminal successfully switches to the base station, the problem of near radio link failure near-RLF may occur because the signal strength is fluctuant, and the current network management node cannot acquire the radio link data of the network element in this scenario.

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 other terminals in a device-to-device (device-to-device) scenario, which is not limited to this embodiment of the present application, and for convenience of understanding, the first access device is taken as a base station in all embodiments of the present application.

The first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS), a network element management system (element management system, EMS), a management service (management service, mns) Producer (Mns Producer), mns Consumer (Mns Consumer), MDAS Producer (MDAS Producer), or MDAS Consumer (MDAS Consumer), which embodiments of the present application are not limited in this respect. 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, where the job type is reporting of a handover success report, that is, reporting of measurement information when the terminal successfully performs handover. For example job type successful handover reporting or successful handover reporting only. It should be noted that, the reporting of the Job type handover success report may be defined as other names, and is intended to indicate reporting of measurement information when the terminal successfully performs handover.

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

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

Tracking reference parameters (trace reference) which are globally unique and consist of a mobile country code (mobile country code, MCC), an operator mobile network code (mobile network code, MNC) and a trace identification trace ID, wherein the MCC and MNC identify a public land mobile network (public land mobile network PLMN) containing the management system by a trace activation request of the management system, optionally the trace ID is a 3 byte string.

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.

An area scope (area scope) which may be one or more of the following: a list of cells, such as an identification of a cell, including a physical cell identification (physical cell identifier, PCI) or a global cell identity (cell global identification, CGI); tracking area codes (tracking area code, TAC).

Reporting amount (report amount) exists when reporting trigger exists, and is used for indicating the maximum amount of reporting measured by the base station or the terminal.

Reporting trigger (Reporting Trigger) is used to instruct the base station or the terminal to measure the event triggered, such as the event A1 or A2.

Reporting interval (report interval) for indicating interval of reporting base station or terminal measurement data.

A measurement period (measurement period) for indicating the period of the base station or terminal measurement data.

And the positioning method is used for indicating the method adopted by the positioning of the base station or the terminal, for example, adopting the methods of E-Cell ID, GNSS positioning and the like.

And (5) a data acquisition period.

Alternatively, the first message sent by the first network management node may be obtained by the first network management node from the fifth network management node, that is, the content (for example, the working 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 above information in the first message; alternatively, the fifth network management node may also configure a part of the information in the above 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 a 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 the first message to the first access device.

As an exemplary embodiment, to activate a Trace Job (Trace Job), the MnS consumer creates the object of Trace Job on the MnS producer. One or more of RLF report, SCG failure report, and success ful HO report may be indicated in trace job type. The object for creating Trace Job may be performed by an existing createMOI creation operation or a newly defined operation, for example, the fifth network management node sends a create Trace Job to the first network management node, and the operation message carries relevant configuration of the Trace Job, such as Job type, etc., where the configuration may be defined in a resource model (network resource model, NRM). The application is not limited herein, and accordingly, the application is not limited herein as to viewing, modifying, deleting Trace Job objects or portions of properties in such objects may be performed by existing getMOIAttributes, modifyMOIAttributes, deleteMOI operations, or by newly defined operations.

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

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

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

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

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

The first radio link information includes at least one of the following messages, for example.

1. Radio link monitoring information (radio link monitoring, RLM), such as timers T310, T312.

2. Beam failure detection information (beam failure detect, BFD), e.g., reference signal received power (reference signal received power, RSRP) detected at the time of BFD transmission.

3. Reference signal received quality (reference signal received quality, RSRQ) and Qin, qout messages in the synchronization protocol. Wherein Qin and Qout are thresholds for downlink out-of-sync detection.

4. The measurement indication comprises a handover trigger, a handover execution or a measurement indication performed after the handover execution is completed.

5. Cell or beam measurement information including RSRP, RSRQ measured by a synchronization signal block (synchronization signal block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS), and measurement information of a cell including RSRP, RSRQ, etc. of a cell. Reference may be made in particular to the measurement content in the TS 38.331 protocol.

6. The time information and the position information corresponding to the terminal when measuring the information, wherein the time information may be absolute time or relative time, and the position information may be longitude, latitude, altitude, etc., which are not limited in the embodiment of the present application.

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

Optionally, a specific working manner of the first access device to obtain the handover success report may include the following steps, which are only examples, and other methods may be adopted for obtaining the handover success report, which is not limited herein.

1. The first access device initiates a tracking session (trace session) after acquiring the activation message.

2. The first access device activates a 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 an available indication of a switching success report.

5. The first access device initiates a terminal information request message (UE information request) to the terminal, the request message carrying a handover success report indication.

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

Optionally, the terminal may also directly carry the handover success report in the handover complete message, so that the first access device is not required to request and then send the handover success report.

303. The first access device sends first 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 (trace collection entity, TCE), and the first network management node is an MAE, and the TCE is configured to collect and aggregate the first wireless 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, trace record reporting message, or may define a new message, which is not limited herein in this embodiment of the present application. Alternatively, the first network management node and the second network management node may 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 (MBB automation engine, MAE), a network management system (network management system, NMS), a network element management system (element management system, EMS), a 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 of the present application.

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

In this embodiment, after the second network management node obtains the first wireless link information, the second wireless link information is forwarded to the third network management node.

The third network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS), a network element management system (element management system, EMS), mns Producer (Mns Producer), mns Consumer (Mns Consumer), MDAS Producer (MDAS Producer), or MDAS Consumer (MDAS Consumer). For ease of understanding, the embodiment of the present application uses the third network management node as the MDAS Producer, but the embodiment is not limited to this scheme.

Therefore, the second network management node acquires the first wireless link information under the scene that the terminal is successfully switched to the first access device, the third network management node can analyze which positions/areas have the problem of near-RLF according to the first wireless link information, or determine which time or time period has the problem of near-RLF 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 problems or coverage problems, or suggestions of parameters for specific adjustments.

It should be noted that the second network management node and the third network management node may be the same node, or may be different nodes, which 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 first wireless link information to the second network management node. In this way, the first access device sends the acquired first wireless link information to the second network management node, and the second network management node forwards the acquired first wireless link information to the third network management node, so that the third network management node can acquire the wireless link information when the terminal successfully performs cell switching.

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 a handover command, the handover execution stage may be related data generated when the terminal initiates a random access procedure to the first access device, and the handover execution completion stage may be related data generated when the terminal sends a handover completion message to the first access device.

It should be noted that, although the handover is successful, in the above-mentioned stages, the problem of the imminent radio link failure (e.g., near-RLF) may occur. Therefore, the third network management node needs to analyze the first radio link information in the above stage, so as to determine the near-RLF problem in different stages. The third network management node needs to obtain a handover success report with finer granularity in order to locate the cause of near-RLF with further refinement. In this regard, the present embodiment provides a more preferred implementation to address this problem. For ease of understanding, the following detailed description is provided 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 an embodiment of the present application includes the following steps.

The following embodiments will be described taking 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 specific working manner of step 401 may refer to the description of step 301, and will not be repeated here. The first message carries, in addition to the above-mentioned work types, a data phase indication for indicating one or more target phases of a handover trigger phase, a handover execution phase or a handover execution completion phase. Optionally, the data phase indication may be configured by a fifth network management node.

402. The first access device obtains a handover success report for the target phase.

In this embodiment, the handover success report is measurement information of a target stage, and in different target stages, the first access device may acquire different measurement information from the terminal, and for example, the handover success report of different target stages includes at least one of the following information.

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

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

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

In this embodiment, after the second network management node obtains the handover success report, the report is forwarded to the third network management node, so that the second network management node obtains measurement information of different data stages in the process that the terminal is successfully handed over to the first access device, and the third network management node can analyze the near-RLF problem of different data stages according to the measurement information.

It should be noted that, in the embodiment of the present application, 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 application is not limited herein.

In this embodiment, the first network management node not only sends a report of successful handover reporting of the working type to the first access device, but also sends a data stage indication to the first access device, where the data stage indication is used to indicate a target stage of reporting of successful handover reporting. The first access device can acquire a handover success report of the target stage according to the work type and the indication of the data stage. And then sent to the second network management node, and forwarded by the second network management node to the third network management node for further accurately locating the occurrence stage of the near-RLF problem.

2. And the connection between the terminal and the auxiliary base station fails in the MR-DC scene.

In this embodiment, in the MR-DC scenario, each cell is provided with a data service for a terminal by the main base station and the auxiliary base station together, when the terminal performs cell switching, the terminal is replaced with a new main base station, and at this time, the main base station instructs the terminal to replace the auxiliary base station, and at this time, the terminal may fail to replace the auxiliary base station, for example, the auxiliary base station is switched too early or too late, or the terminal is switched to the wrong auxiliary base station. In order to obtain wireless link information of connection failure between a terminal and an auxiliary base station in an MR-DC scene, the embodiment of the application provides the following method. Referring to fig. 5, as shown in fig. 5, a third embodiment of a radio link information acquisition method according to an 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 other terminals in a device-to-device (device-to-device) scenario, and in this embodiment, the first access device is described taking a primary base station in an MR-DC scenario as an example.

The first network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS) or a network element management system (element management system, EMS), mns Producer (Mns Producer), mns Consumer (Mns Consumer), MDAS Producer (MDAS Producer) or MDAS Consumer (MDAS Consumer), which embodiments of the present application are not limited.

The first message includes a job type, where the job type is reporting of an auxiliary base station connection failure report, and is used to indicate reporting of the auxiliary base station connection failure report, that is, reporting of measurement information when the terminal fails to connect with the auxiliary base station. For example, the job type is SCG (secondary cell group) failure reporting or SCG failure reporting only, and optionally, the job type may also be a secondary cell connection failure report reporting, which is used to indicate reporting of a secondary cell group connection failure report. It should be noted that, the reporting of the secondary base station connection failure report or the secondary cell connection failure report of the job type may be defined as other names, which are intended to indicate reporting of measurement information when the terminal fails to connect with the secondary base station (or the secondary cell), which is not limited in this application. For easy understanding, in this embodiment, a description is given of a report reporting scheme of connection failure of a base station with a working type as an auxiliary base station.

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

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

And (5) a data acquisition period.

Alternatively, the first message sent by the first network management node may be obtained by the first network management node from the fifth network management node, that is, the content (for example, the working type) included in the first message is determined by the fifth network management node, where the fifth network management node may configure all the information in the above information in the first message; alternatively, the fifth network management node may also configure a part of the information in the above 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.

As an exemplary embodiment, to activate a Trace Job (Trace Job), the MnS consumer creates the object of Trace Job on the MnS producer. One or more of RLF report, SCG failure report, and success ful HO report may be indicated in trace job type. The object for creating Trace Job may be performed by an existing createMOI creation operation or a newly defined operation, for example, the fifth network management node sends a create Trace Job to the first network management node, and the operation message carries relevant configuration of the Trace Job, such as Job type, etc., where the configuration may be defined in a resource model (network resource model, NRM). The invention is not limited herein, and accordingly, the invention is not limited herein as to viewing, modifying, deleting Trace Job objects or portions of properties in such objects may be performed by existing getMOIAttributes, modifyMOIAttributes, deleteMOI operations, or by newly defined operations.

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

In this embodiment, the working type is reporting 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 terminal fails to connect with the secondary base station, that is, a secondary base station connection failure report (SCG failure reporting).

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

The second radio link information includes, for example, at least one of the following messages.

1. Failure types including T310 failure, random access problem, radio link control RLC re-transmission to maximum number, secondary base station (secondary cell group, SCG) synchronization configuration failure, SCG reconfiguration failure, and SRB3 (SRB 3 is a signaling radio bearer for direct signaling transmission between the secondary base station and the terminal) integrity failure, etc.

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

3. The measurement result of the second access device includes cell information, frequency point information, and information such as RSRP, RSRQ, and if the second access device is a 5G NR base station, the measurement result of the beam includes the identification of the beam, the frequency point information, and the RSRP, RSRQ, and the like, where the beam may be SSB or CSI-RS.

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

5. And the information such as cell identification, frequency point and the like of the failed second access equipment.

6. Identification information of the terminal.

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

Optionally, the specific working manner of the first access device to obtain the connection failure report of the secondary base station may include the following steps, which are only examples, and the obtaining manner may also be other methods, which are not limited herein.

3. When the terminal fails in the radio link on the second access device, the first access device acquires a connection failure report of the auxiliary base station from the terminal.

503. The first access device sends second radio link information to a 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 (trace collection entity, TCE), and the first network management node is an MAE, and the TCE is configured to collect and aggregate second radio link information sent by the base station. The base station may send the second radio link information to the TCE through an existing message, for example, trace record reporting message, or may define a new message, which is not limited herein. Alternatively, the first network management node and the second network management node may 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 the third network management node.

In this embodiment, after the second network management node obtains the second wireless link information, the second wireless link information is forwarded to the third network management node.

The third network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS), a network element management system (element management system, EMS), mns Producer (Mns Producer), mns Consumer (Mns Consumer), MDAS Producer (MDAS Producer), or MDAS Consumer (MDAS Consumer), which embodiments of the present application are not limited. For ease of understanding, the embodiment of the present application uses the third network management node as the MDAS Producer, but the embodiment is not limited to this scheme.

And the third network management node acquires the second wireless link information when the connection between the terminal and the second access equipment fails. The third network management node (MDAS Producer) may analyze the mobility problem of the terminal in the second access device and the coverage problem of the second access device according to the second radio link information, and further, the analysis result output by the third network management node may be further applied to other entities. The analysis results may be specific to mobility problems or coverage problems, or suggestions of parameters for specific adjustments.

In this embodiment, the first network management node sends a working type to the first access device, where the working type is used to instruct reporting of the connection failure report of the auxiliary base station, so that the first access device sends second radio link information to the second network management node. In this way, the first access device sends the acquired second wireless link information to the second network management node, and the second network management node forwards the second wireless link information to the third network management node, so that the third network management node can acquire the wireless 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. And 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 network parameters according to the analysis result, and the communication system can work normally. In this regard, the embodiment of the present application provides a method for analyzing radio link information, which is respectively aimed at the first application scenario: the near-RLF problem in the scene of successful handover of the terminal to the base station, and the second application scene: and the connection between the terminal and the auxiliary base station fails in the MR-DC scene. For easy understanding, the following describes the analysis methods in the two application scenarios in detail with reference to the drawings.

1. A near-RLF problem analysis method under a scene that a terminal is successfully switched to a base station.

In this embodiment, when the near-RLF problem occurs in the scenario where the terminal switches to the base station successfully, according to the method described above, the third network management node obtains the first wireless link information, analyzes the first wireless link information, and sends the obtained analysis result to the fourth network management node, and further, the fourth network management node adjusts the network parameters of the terminal and the base station. For easy understanding, referring to fig. 6, a fourth embodiment of the present application includes the following steps.

601. The third network management node obtains 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 wireless link information may be referred to the related description in step 302, and will not be described herein. The specific implementation manner of the third network management node to obtain the first wireless link information may refer to any one of the foregoing 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 wireless link information, so as to learn about the coverage problem and/or the mobility problem of the terminal by the first access device.

Optionally, the first radio link information is recorded in a handover success report, and the third network management node acquires 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, where the measurement information is used to record a connection condition between the terminal and the first access device, and the measurement information may include at least one of radio link monitoring information (radio link monitoring, RLM) and a number of radio link control (radio link control, RLC) retransmissions. The specific analysis method of these two data is 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, including the following steps.

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

2) 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 actual situations, and the embodiment of the present application is not limited.

3) When the switching time is relative to a preset value, the third network management node judges that near 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 a downlink coverage problem, for example, the RLM timer is "T310expire", that is, when the signal of the serving cell is poor during the T310 timer, the terminal may need to switch, but the terminal receives a delay of the switching command due to the poor signal of the serving cell, so that T310 times out, and RLF occurs. The timer timeout can be used to identify downstream coverage problems.

2. The handover success report includes RLC retransmission times.

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

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

2) 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 actual situations, which is not limited in the embodiment of the present application.

3) And when the number of the RLC retransmission times is larger than a preset value, the third network management node judges that uplink coverage is limited 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, and meanwhile, the handover success report may further include other types of radio link information, which is not limited 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 trigger phase, a handover execution phase or a handover execution completion phase of the terminal to the first access device, and at this time, the measurement information is the measurement information acquired in the target phases. The third network management node may analyze more finely the near-RLF problem in different data phases, for example, the third network management node may analyze whether the near-RLF problem occurs in the downlink coverage of the handover triggering phase according to the RLM information of the handover triggering phase from the terminal to the first access device, or the third network management node may analyze whether the near-RLF problem occurs in the uplink coverage of the handover performing phase according to the RLC retransmission times of the terminal to the first access device, so as to refine the granularity of the problem analysis, and accurately determine in which data phase the near-RLF problem occurs.

Optionally, the target phases included in the data phase may be further differentiated according to actual needs, for example, different granularity or finer granularity, which is not limited by the embodiment of the present application.

In this embodiment, since the first wireless 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 the near-RLF problem between the terminal and the access device according to the obtained first wireless 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. The third network management node transmits the analysis result to the fourth network management node.

In this embodiment, the fourth network management node may be a wireless automation engine (MBB automation engine, MAE), a network management system (network management system, NMS), a network element management system (element management system, EMS), a 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 of the present application. For easy understanding, in this embodiment, the fourth network management node is taken as an MDAS Consumer, but the embodiment of the present application is not limited thereto, and as described above, the third network management node is an MDAS Producer, and the MDAS Consumer is used for adjusting network parameters according to the analysis result of the MDAS Producer, so as to repair the 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, 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 easy understanding, these two cases will be described in detail below with reference to the drawings, respectively.

1. And the third network management node sends the 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 subscore operation message or a newly defined operation message, which is not limited herein. The subscription message may include: 1), a message range, 2), a target period, and 3), such that the third network management node sends all or part of the first wireless link information subscribed to by the third network management node to the fourth network management node every interval of the target period and/or when the target event triggers. These three cases are described in detail below with reference to the drawings, respectively.

1) The subscription message includes a message scope.

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

a. In the case of successful handover of the terminal, the analysis result of the near-RLF problem (analysis result of the handover success report) is analyzed. 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 of the near-RLF problem in one or more of the data phases.

b. In the case of multiple links, the analysis result when the terminal fails to connect with the second access device (for example, the secondary base station) (analysis result for the secondary base station connection failure report).

c. The analysis result at the time of the radio link failure (the analysis result of the radio link failure report RLF report, it should be noted that RLF report is a report type in the prior art, and is used for recording the connection state between the terminal and the first access device, for example, for identifying the scenario of early, late, or wrong cell handover of the terminal, and identifying the coverage situation, weak coverage, coverage hole, and handover coverage of the base station.

It should be noted that, the above case b is applicable to the connection failure report SCG failure report between the terminal and the secondary base station (or secondary cell group secondary cellgroup, SCG) in the multi-link scenario; the above-mentioned case c is a general scenario for a connection failure report RLF report of a radio link failure (radio link failure, RLF) between a terminal and a base station, and thus the two connection failure reports are not identical. In the solution in the prior art, the second network management node can obtain the RLF report of the connection failure report, and the second network management node must rely on the radio link information obtaining method provided by the embodiment of the present application to obtain the connection failure report SCG failure report of the secondary base station.

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

701. 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 analysis results or all analysis results of the third network management node, where the part of analysis results are analysis results of a designated part of the first subscription information, and may be at least one of the analysis results described in the foregoing a, b, and c.

702. And the third network management node sends 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 information desired by the third network management node 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 analysis results expected by itself.

2) The subscription information includes 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. 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, which is not limited in this embodiment of the present application. The third network management node may know the period of sending the analysis result to the fourth network management node through the target period carried in the second subscription information.

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, alternatively, the analysis result sent by the third network management node may be all the analysis results in the third network management node, or may send part of the analysis results according to the steps shown in fig. 7, which is not limited in this embodiment of the present application, and the specific steps of the fourth network management node indicating part of the analysis results to the third network management node may refer to the steps shown in fig. 7, which are not repeated herein.

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 movement condition in real time, and then periodically sends the 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 through sending and receiving 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 can be repeated to update the target period.

3) The subscription information includes the 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. The fourth network management node sends 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, when the analysis result coverage problem exceeds 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, and the application 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 the target event sent 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, alternatively, the analysis result sent by the third network management node may be all analysis results in the third network management node, or may send a part of analysis results according to the steps shown in fig. 7, which is not limited in this embodiment of the present application, and the specific steps of the fourth network management node indicating a part of analysis results to the third network management node may refer to the steps shown in fig. 7, and are not repeated herein.

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

Optionally, after the fourth network management node subscribes to the analysis result with the third network management node through the subscription message, the fourth network management node may further send an unsubscribe message to the third network management node, so as to cancel the message subscription of the fourth network management node to 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 the analysis result from the third network management node, a 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 ease of understanding, this will be described in detail below with reference to the accompanying 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 the analysis result of the third network management node, optionally, the request message may also carry indication information, to indicate a part of analysis results in the third network management node, for example, a handover success report in a near-RLF scenario, a secondary base station connection failure report in a multi-link scenario, and a radio link failure report, which are 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 the manner of subscribing the analysis result through the subscription message, the fourth network management node directly sends the 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 mobility parameter (such as cell paranoid CIO, etc.), coverage radio frequency parameter (such as antenna downtilt angle, azimuth angle, etc.), and coverage beam parameter (such as downlink signal strength threshold ssbrsrPThreshold, etc.), which is not limited herein.

In this embodiment, the fourth network management node obtains the analysis result from the third network management node through the above step, where the analysis result includes analysis of the near-RLF problem in the state that the terminal is successfully handed over to the base station, and optionally, the analysis result may further include an adjustment suggestion for adjusting the network parameter. Based on the analysis results, the fourth network management node adjusts network parameters of network elements such as the terminal and the base station, so as to solve the near-RLF problem in the successful state of switching the terminal to the base station, and it should be noted that a specific adjustment method for adjusting the network parameters by the fourth network management node based on the analysis results is the prior art, and a person skilled in the art can select a method for adjusting the network parameters according to actual working requirements based on the analysis results, which is not described in detail in the embodiments of the present application.

605. 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 network parameters of the terminal and the base station, and optionally, the feedback message may include the following.

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

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

Adjusted performance statistics, etc., wherein the performance statistics may be obtained from the wireless network (radio access network, RAN).

Through the mode, 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, by using the method for acquiring wireless link information provided in the embodiment of the present application, a third network management node acquires first wireless link information from a second network management node, where the first wireless link information is sent by a first access device to the second network management node according to an indication of a working type sent by the first network management node, and the first wireless link information includes wireless 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 the fourth network management node, and the fourth network management node sends a feedback message to the third network management node after adjusting the network parameters according to the analysis result, so that the third network management node knows the result of adjusting the network parameters, thereby realizing the adjustment of the wireless link information and overcoming the near-RLF problem under the condition that the terminal is successfully switched to the base station.

2. An analysis method for the connection failure problem of a terminal and an auxiliary base station in an MR-DC scene.

In this embodiment, when the connection between the terminal and the auxiliary base station fails in the multi-link scenario, according to the foregoing method, the third network management node obtains the second wireless link information, analyzes the second wireless link information, sends the obtained analysis result to the fourth network management node, and adjusts the network parameter by the fourth network management node. For easy understanding, referring to fig. 11, a fifth embodiment of the present application includes the following steps.

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

In this embodiment, the second wireless link information is obtained by the first access device according to the working type sent by the first network management node, where the second wireless link information includes wireless 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 a multi-link data transmission for the terminal. The specific implementation manner of the third network management node to obtain the first wireless link information may refer to the third embodiment, which is not described herein again.

1102. And the third network management node acquires an 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, and the third network management node may be an MDAS Producer, and analyzes the acquired second wireless link information, so as to analyze, according to the second wireless link data, a problem that the connection between the terminal and the secondary base station fails in the case of multiple links, where specifically, the problem of switching failure of the secondary base station includes a situation that the terminal switches to the secondary base station too early, too late, or switches to an error cell.

Optionally, the second radio link information is recorded in a 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 obtains a time interval from a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure; and when the connection between the terminal and the second access equipment fails, the cell identification, the frequency point information and the identification information of the terminal of the second access equipment. The specific analysis method of these two data is described in detail below.

1. The secondary base station connection failure report includes a time interval from the acquisition of the second access device replacement command sent by the first access device to the occurrence of the second access device replacement failure by the terminal.

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

1) And the third network management node acquires a time interval from acquiring a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure from the auxiliary 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 is replaced with the second access equipment too early.

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

In this embodiment, the first preset value and the second preset value may be set by those 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 the cell identification, the frequency point information and the identification information of the terminal of the second access equipment when the terminal and the second access equipment are in connection failure.

In this embodiment, when the connection between the terminal and the second access device fails, the situation that the terminal is replaced to the wrong second access device, i.e. the situation that the terminal is replaced to the wrong auxiliary base station in the multi-link scenario is included except for the situation that the terminal is replaced too early and too late, and the analysis of the situation includes the following steps.

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

2) And the third network management node judges whether the terminal is replaced to the correct second access equipment according to the cell identification, the frequency point information and the identification information of the terminal of the second access equipment.

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

1103. The third network management node transmits 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 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 for one or more of a subscription message range, a target period, or a target event. The specific implementation may be referred to the descriptions of fig. 7 to 10, and will not be repeated here.

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 the analysis result from the third network management node through the above step, where the analysis result includes analysis of the connection failure problem between the terminal and the secondary base station, and optionally, the analysis result may further include an adjustment suggestion for adjusting the network parameter. Based on the analysis results, the fourth network management node adjusts network parameters of 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, and it is to be noted that a specific adjustment method for adjusting the network parameters by the fourth network management node based on the analysis results is the prior art, and a person skilled in the art can select a method for adjusting the network parameters according to actual working requirements based on the analysis results, which is not described in detail in the embodiment of the application.

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

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

In this embodiment, by using the wireless link information obtaining method provided by the embodiment of the present application, the third network management node obtains second wireless link information from the second network management node, where the second wireless link information is obtained by the first access device according to the work type sent by the first network management node, and the second wireless link information includes wireless link information when the connection between the terminal and the second access device fails, where the first access device and the second access device form a multi-link data transmission for the terminal; the third network management node obtains 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 the fourth network management node so that the fourth network management node adjusts network parameters of the terminal and the second access equipment according to the analysis result. Therefore, the adjustment of the wireless link information is realized, and the problem of connection failure of the terminal and the auxiliary base station in the multi-link scene is solved.

The above-mentioned radio link information obtaining method and radio link information adjusting method may be implemented by one entity device, or may be implemented by a plurality of entity devices together, or may be a logic function module in one entity device, which is not limited in particular by the embodiment of the present application.

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

The processor 1201 may be a general purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (server IC), or one or more integrated circuits for controlling the execution of the program of the present application.

Communication line 1202 may include a pathway to transfer information between the aforementioned components.

The communication interface 1204, using any transceiver-like means for communicating with other devices or communication networks, such as ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), etc.

The memory 1203 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disc storage, a compact disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, 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. The memory may be separate and coupled to the processor via communication line 1202. The memory may also be integrated with the processor.

The memory 1203 is used for storing computer-executable instructions for executing the present application, and is controlled by the processor 1201. The processor 1201 is configured to execute computer-executable instructions stored in the memory 1203 to implement a method for billing management according to the following embodiments of the present application.

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

In a particular implementation, the processor 1201 may include one or more CPUs, such as CPU0 and CPU1 in fig. 12, as one embodiment.

In a specific implementation, as an embodiment, the network device may include a plurality of processors, such as processor 1201 and processor 1207 in fig. 12. Each of these processors may be a single-core (single-CPU) processor or may be 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 a particular implementation, the network devices may also include, as one embodiment, an output device 1205 and an input device 1206. The output device 1205 is in communication with the processor 1201 and may display information in a variety of ways. For example, the output device 1205 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like. The input device 1206 is in communication with the processor 1201 and may receive input from a user 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 is not limited to the type of the network equipment.

The embodiment of the application can divide the functional units of the network device according to the method example, for example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated in one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

For example, fig. 13 shows a schematic diagram of a network access device in the case where the respective functional units are divided in an integrated manner.

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, where the work type is used to instruct a terminal to successfully perform cell handover to the first access device;

A second acquiring unit 1302, where the second acquiring unit 1302 is configured to acquire the first wireless link information from the terminal after receiving the work type acquired by the first acquiring 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 working type is used to indicate a report of handover success, where the report of handover success is used to record the first radio link information, and the second obtaining unit 1302 is further configured to:

acquiring a handover success report from the terminal;

the sending unit 1303 is further configured to:

the handover success report acquired by the second acquisition unit 1302 is transmitted to the second network management node.

Optionally, the first message further includes a data stage, where the data stage is used to instruct the terminal to at least one target stage of a handover trigger stage, a handover execution stage, or a handover execution completion stage of 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: radio link monitoring information RLM, beam failure detection information BFD, reference signal reception quality information RSRQ, cell or beam measurement information, and time information and location information corresponding to when the terminal acquires a handover 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, the 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 working type, where the working type is used to indicate second wireless link information when a terminal fails to connect with a second access device, and the first access device and the second access device form a multi-link data transmission for the terminal;

a second acquiring unit 1402, where the second acquiring unit 1402 is configured to acquire the second radio link information from the terminal after receiving the work type acquired by the first acquiring unit 1401;

a transmitting unit 1403, where the transmitting unit 1403 is configured to transmit 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 transmits 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 used to:

Acquiring a connection failure report of an auxiliary base station from the terminal;

the transmitting unit 1403 is also configured to:

and sending the connection failure report of the auxiliary base station acquired by the second acquisition unit 1402 to the second network management node.

Optionally, the secondary base station connection failure report includes at least one of the following information: the method comprises the steps of determining the failure type of connection failure between the terminal and the second access equipment, measuring results of the second access equipment, time interval from receiving a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure, cell identification of the second access equipment which is failed to be replaced, frequency point information and identification 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 information obtained by a first access device 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 successfully performs handover; 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 1502, where the analysis unit 1502 is 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, where the analysis result includes at least one of a coverage problem or a mobility problem.

Optionally, the obtaining unit 1501 is further configured to:

acquiring a handover success report from the second network management node, the handover success report being used to record the first wireless link information;

the analysis unit 1502 is further configured to:

and analyzing a coverage problem of the first access device and the terminal according to the handover success report acquired by the acquiring unit 1501, wherein 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 analyzing unit 1502 is further configured to:

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

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

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

And when the number of the RLC retransmission times is larger than a preset value, judging that uplink coverage is limited between the first access equipment and the terminal.

Optionally, the obtaining unit 1501 is further configured to:

acquiring 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 analysis unit 1502 is further configured to:

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

Optionally, the secondary base station connection failure report includes: the terminal obtains a time interval from a second access equipment replacement command sent by the first access equipment to the occurrence of second access equipment replacement failure; 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 is replaced with the second access equipment too early;

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

Optionally, the secondary base station connection failure report includes: 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 1502 is further configured to:

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

Optionally, the network device further includes a transmitting 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 subscription to at least one of the following information: the successful switching comprises at least one of the connection failure reports of the auxiliary base station, 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 transmitting unit 1503 transmits 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 transmitting unit 1503 transmits the analysis result to the fourth network management node every interval of the target period;

When the subscription message includes the target event, the transmitting unit 1503 transmits 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 obtains 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 obtaining unit 1501 is further configured to:

and acquiring 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.

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

the generating unit 1601 is configured to generate a first message, where the first message includes a working type, where the working type is used to indicate first radio link information when the terminal successfully performs handover, or in a multi-link scenario, the working type is used to indicate second radio link information when the terminal fails to connect with the second access device, where the first access device and the second access device form multi-link data transmission for 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, it may be implemented in whole or in part 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, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, data center, etc. that contains an integration of 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)), etc.

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

In the 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 apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

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

Claims

1. A wireless link information acquisition method, 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 work type, and the work type is used for indicating first wireless link information when a terminal is successfully switched;

the first access device acquires the first wireless link information after receiving the work type;

the first access device 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 according to claim 1, wherein the working type is used for indicating a report of successful handover, the report of successful handover is used for recording the first wireless link information, and the first access device obtains the first wireless link information from the terminal after receiving the working type, including:

The first access equipment acquires the handover success report from the terminal;

the first access device sending the first wireless 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 according to claim 2, wherein the first message further comprises a data stage, the data stage being configured to instruct the terminal to at least one target stage of a handover trigger stage, a handover execution stage or a handover execution completion stage of the first access device;

the first access device obtaining the first wireless link information from the terminal after receiving the work type, including:

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

4. A method according to any 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 analyzing radio link information, comprising:

the third network management node acquires first wireless link information from the second network management node, wherein the first wireless link information is information acquired by the first access equipment according to the work type sent by the first network management node, and the first wireless link information is wireless link information when the terminal is successfully switched;

the third network management node analyzes the first wireless link information to obtain an analysis result, wherein the analysis result comprises at least one of coverage problems or mobility problems.

6. The method of claim 5, wherein the third network management node obtaining the first wireless link information from the second network management node, comprising:

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 wireless link information;

the third network management node analyzes the first wireless link information to obtain an analysis result, including:

and the third network management node analyzes the coverage problem of the first access equipment and the terminal according to the handover success report, wherein the coverage problem comprises at least one of weak coverage, coverage loopholes and cross-region coverage.

7. The method of claim 6, wherein the handover success report includes radio link monitoring information RLM, and wherein the third network management node analyzes the first radio link information to obtain an analysis result, comprising:

the third network management node obtains 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 first access equipment and the terminal have a failure of approaching a wireless link, and the downlink coverage is abnormal.

8. The method according to claim 6 or 7, wherein the handover success report includes a number of radio link control, RLC, retransmissions, and wherein the third network management node analyzing the first radio link information to obtain an analysis result comprises:

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

9. The method according to any one of claims 5 to 8, 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 network parameters according to the analysis result.

10. The method of claim 9, wherein the third network management node sending the analysis result to a fourth network management node, comprising:

the third network management node obtains subscription information from the fourth network management node, the subscription information being used to request subscription to at least one of the following information: a handover success report, a target period, and a target event;

when the subscription information comprises the handover success report, the third network management node sends an analysis result of the handover success report to the fourth network management node according to the subscription information;

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

and when the subscription information comprises the target event, the third network management node sends the analysis result to the fourth network management node when the target event is triggered.

11. The method of claim 9, wherein the third network management node sending the analysis result to a fourth network management node, comprising:

12. The method according to any one of claims 9 to 11, wherein after the third network management node sends the analysis result to a fourth network management node, further comprising:

the third network management node obtains 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.

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

the fifth network management node generates a first message, wherein the first message comprises a work type, and the work type is used for indicating first wireless link information when the terminal is successfully switched;

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 a first access device.

14. A network access device, comprising:

the first acquisition unit is used for acquiring a first message from the first network management node, wherein the first message comprises a work type which is used for indicating first wireless link information when the terminal is successfully switched;

the second acquisition unit is used for acquiring the first wireless link information from the terminal after receiving the work type acquired by the first acquisition unit;

and the sending unit is used for sending the first wireless link information acquired by the second acquisition 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.

15. The network access device of claim 14, wherein the working type is configured to indicate a handover success report, the handover success report being configured to record the first radio link information, and the second obtaining unit is further configured to:

acquiring the 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.

16. The network access device of claim 15, wherein the first message further includes a data stage, the data stage being configured to instruct the terminal to at least one target stage of a handover trigger stage, a handover execution stage, or a handover execution completion stage of the first access device;

the second acquisition unit is further configured to:

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

17. The network access device of any of claims 14 to 16, wherein the first message is obtained by the first network management node from a fifth network management node.

18. A network device, comprising:

the system comprises an acquisition unit, a first network management node and a second network management node, wherein the acquisition unit is used for acquiring first wireless link information from the second network management node, the first wireless link information is acquired by a first access device 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;

And the analysis unit is used for analyzing the first wireless link information acquired by the acquisition unit to obtain an analysis result, wherein the analysis result comprises at least one of coverage problems or mobility problems.

19. The network device of claim 18, wherein the acquisition 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 wireless link information;

the analysis unit is further configured to:

and analyzing the coverage problem of the first access equipment and the terminal according to the handover success report acquired by the acquisition unit, wherein the coverage problem comprises at least one of weak coverage, coverage loopholes and handover coverage.

20. The network device of claim 19, wherein the handover success report includes radio link monitoring information, RLM, the analysis unit further configured to:

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

21. The network device according to claim 19 or 20, wherein the handover success report comprises a number of radio link control, RLC, retransmissions, the analysis unit being further configured to:

22. The network device according to any one of claims 18 to 21, wherein the network device further comprises a transmitting unit: the sending unit is used for sending the analysis result to a fourth network management node so that the fourth network management node adjusts network parameters according to the analysis result.

23. The network device of claim 22, wherein the transmitting unit is further configured to:

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

when the subscription information comprises the handover success report, the sending unit sends an analysis result of the handover success report to the fourth network management node according to the subscription information;

When the subscription information includes the target period, the transmitting unit transmits the analysis result to the fourth network management node every interval of the target period;

when the subscription information includes the target event, the transmitting unit transmits the analysis result to the fourth network management node when the target event is triggered.

24. The network device of claim 22, wherein the transmitting unit is further configured to:

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

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

25. The network device according to any of the claims 22 to 24, wherein the acquisition unit is further configured to:

26. A network device, comprising:

the generating unit is used for generating a first message, wherein the first message comprises a work type, and the work type is used for indicating first wireless link information when the terminal is successfully switched;

And the sending unit is used for sending 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 a first access device.

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

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

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

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

the processor is configured to execute program instructions stored in the memory and to perform the method according to any of claims 5-12.

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

the processor is configured to execute program instructions stored in the memory to perform the method of claim 13.

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

31. A computer readable storage medium comprising instructions which, when run on a computer device, cause the computer device to perform the method of any of claims 5-12.

32. A computer readable storage medium comprising instructions which, when run on a computer device, cause the computer device to perform the method of claim 13.