CN116567752A - Method, device, equipment and storage medium for determining cause of RRC (radio resource control) reconstruction - Google Patents

Abstract

The application provides a method, a device, equipment and a storage medium for determining a cause of RRC reestablishment, which relate to the technical field of communication. The method comprises the following steps: the determining device determines a problem cell where RRC reestablishment occurs under the condition that the RRC reestablishment belongs to voice service; acquiring signaling data and voice system data of a problem cell; the signaling data is used for representing the signal quality when the user terminal uses voice service; the voice system data is used for representing network performance indexes of the user terminal; and determining the problem reason of the RRC reestablishment of the problem cell according to the signaling data or the voice system data. The method and the device can be used in the process of determining the cause of the RRC reestablishment, and can be used for automatically determining the cause of the problem of the RRC reestablishment so as to optimize the voice perception of the user according to the cause of the problem.

Description

Method, device, equipment and storage medium for determining cause of RRC (radio resource control) reconstruction

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for determining a cause of RRC reestablishment.

Background

With the continuous advancement of new air interface supported voice (voice over new radio, VONR) technology business, the attention of users to the voice quality of the fifth generation mobile communication technology (5th generation mobile communication technology,5G) is gradually improved, and the voice perception optimization of the VONR technology becomes an important attack work of the current operator. In combination with the optimization experience of the long term evolution voice bearer (voice over long term evolution, VOLTE) technology, the VONR technology is extremely sensitive to the influence of the radio resource control protocol (radio resource control, RRC) reestablishment in the user voice service process, and the RRC reestablishment aims at recovering the RRC signaling connection, reducing dropped calls and weakening the user dropped call perceptibility.

However, the delay of RRC reestablishment may cause abnormal perception of speech by the user, for example, in situations where the user swallows or breaks, and in severe situations even dropped calls. In the prior art, the RRC reestablishment process is directly optimized, the delay of the RRC reestablishment is reduced, the voice perception of the user is improved, and the RRC reestablishment process is optimized for the problem reason by determining the problem reason of the RRC. The problem cause of RRC reestablishment can be positioned to the step that the RRC reestablishment process needs to be optimized more quickly, so that the voice perception of the user can be improved more quickly. Therefore, how to determine the cause of the problem of RRC reestablishment is a problem that is currently in need of solution.

Disclosure of Invention

The application provides a method, a device, equipment and a storage medium for determining the cause of RRC reestablishment, which realize automatic determination of the cause of the RRC reestablishment of a problem cell.

In a first aspect, the present application provides a method for determining a cause of RRC reestablishment, which is applied to a reestablishment device, and the method includes: under the condition that the RRC reestablishment belongs to voice service, determining a problem cell where the RRC reestablishment occurs; acquiring signaling data and voice system data of a problem cell; the signaling data is used for representing the signal quality when the user terminal uses voice service; the voice system data is used for representing network performance indexes of the user terminal; and determining the problem reason of the RRC reestablishment of the problem cell according to the signaling data or the voice system data.

According to the method for determining the cause of the RRC reestablishment, the determining device determines the problem cell with the RRC reestablishment under the condition that the RRC reestablishment belongs to voice service, so that signaling data and voice system data of the problem cell are obtained, and the cause of the problem of the RRC reestablishment of the problem cell is determined according to the signaling data or the voice system data. The method and the device realize automatic determination of the cause of RRC reconstruction of the problem cell, and compared with the prior art, the method and the device can determine the problem cell and the cause of the problem more quickly and accurately, make up the defect that the real problem cell cannot be acquired in the prior art, facilitate management staff to optimize voice perception of a user according to the problem cell and the cause of the problem in a targeted manner, and improve efficiency of user perception improvement.

In one possible implementation, before determining the problem cell in which RRC reestablishment occurs, the method further includes: and determining the service type to which the RRC reestablishment belongs.

In another possible implementation manner, the RRC reestablishment process includes a target parameter, where the target parameter is used to characterize a duration of retries performed by the terminal accessing the cell; determining the service type to which the RRC reestablishment belongs comprises the following steps: reducing the value of the target parameter from the preset duration to the first duration, and acquiring a call drop index of a service quality class identifier (quality of service class identifier, QCI) level; the call drop index comprises a fifth generation mobile communication technology service quality identifier (5G quality of service identifier,5QI); and under the condition that 5QI is the target value, determining the service type to which the RRC reestablishment belongs as voice service.

Yet another possible implementation manner, determining a problem cell in which RRC reestablishment occurs includes: and reducing the value of the target parameter from the first time length to the second time length, and determining that the cell with the call drop index larger than the preset threshold value is a problem cell.

In another possible implementation manner, determining the service type to which the RRC reestablishment belongs includes: under the condition that RRC reestablishment is inter-station reestablishment, acquiring an RRC reconfiguration message; the RRC reconfiguration message includes radio link control (radio link control, RLC) information; and under the condition that the RLC information indicates a non-acknowledgement mode, determining the service type to which the RRC reestablishment belongs as voice service.

Yet another possible implementation manner, determining a problem cell in which RRC reestablishment occurs includes: acquiring an RRC reestablishment request; the RRC reestablishment request comprises peripheral interconnection standard (personal computer interface, PCI) information; and determining the cell corresponding to the PCI information as a problem cell in the signal coverage of the base station closest to the reconstruction device.

In yet another possible implementation, the signaling data includes at least one of the following parameters: reference signal received power (reference signal receiving power, RSRP) and signal-to-interference plus noise ratio (signal to interference plus noise ratio, SINR); according to the signaling data, determining the problem reason of the RRC reestablishment of the problem cell comprises the following steps: in the event that RSRP is less than the first threshold, determining that the problem is due to weak coverage; in the case where the SINR is less than the second threshold, it is determined that the cause of the problem is poor SINR quality.

In yet another possible implementation, the session data includes at least one of the following parameters: uplink background noise, sounding reference signal (sounding reference signal, SRS) interference, last symbol interference, physical uplink shared channel (physical uplink shared channel, PUSCH) RSRP, and Tracking Area (TA) distance; according to the voice system data, determining the problem reason of the RRC reestablishment of the problem cell, including: under the condition that the uplink background noise is larger than a third threshold value, determining that the problem is caused by full-band interference; in the event that the SRS interference is greater than a third threshold, determining that the problem is due to SRS interference; in the case that the last symbol interference is greater than a third threshold, determining that the problem is due to far-end interference; in the case that PUSCH RSRP is greater than the fourth threshold, determining that the problem is due to uplink weak coverage; in the event that the TA distance is greater than the fifth threshold, it is determined that the problem is due to handoff coverage.

In a second aspect, the present application provides a cause determining apparatus for RRC reestablishment, applied to a reestablishment apparatus, the apparatus including: a determining module and an acquiring module.

The determining module is used for determining a problem cell where RRC reestablishment occurs under the condition that the RRC reestablishment belongs to voice service; the acquisition module is used for acquiring signaling data and voice system data of the problem cell; the signaling data is used for representing the signal quality when the user terminal uses voice service; the voice system data is used for representing network performance indexes of the user terminal; the determining module is further configured to determine, according to the signaling data or the voice system data, a cause of the problem that the RRC reestablishment occurs in the problem cell.

In one possible implementation manner, the determining module is further configured to determine a service type to which the RRC reestablishment belongs.

In another possible implementation manner, the RRC reestablishment process includes a target parameter, where the target parameter is used to characterize a duration of retries performed by the terminal for the access cell; the determining module is specifically configured to reduce the value of the target parameter from a preset duration to a first duration, and obtain a call drop indicator of the QCI level; the call drop index comprises 5QI; and under the condition that 5QI is the target value, determining the service type to which the RRC reestablishment belongs as voice service.

In another possible implementation manner, the determining module is specifically configured to reduce the value of the target parameter from the first duration to the second duration, and determine that the cell with the call drop indicator greater than the preset threshold is a problem cell.

In another possible implementation manner, the determining module is specifically configured to obtain an RRC reconfiguration message when the RRC reestablishment is an inter-station reestablishment; the RRC reconfiguration message includes RLC information; and under the condition that the RLC information indicates a non-acknowledgement mode, determining the service type to which the RRC reestablishment belongs as voice service.

In another possible implementation manner, the determining module is specifically configured to obtain an RRC reestablishment request; the RRC reestablishment request comprises PCI information; and determining the cell corresponding to the PCI information as a problem cell in the signal coverage of the base station closest to the reconstruction device.

In yet another possible implementation, the signaling data includes at least one of the following parameters: RSRP and SINR; the determining module is specifically configured to determine that the problem is due to weak coverage if RSRP is less than a first threshold; in the case where the SINR is less than the second threshold, it is determined that the cause of the problem is poor SINR quality.

In yet another possible implementation, the session data includes at least one of the following parameters: uplink background noise, SRS interference, last symbol interference, PUSCH RSRP and TA distance; the determining module is specifically configured to determine that the problem is due to full-band interference when the uplink background noise is greater than a third threshold; in the event that the SRS interference is greater than a third threshold, determining that the problem is due to SRS interference; in the case that the last symbol interference is greater than a third threshold, determining that the problem is due to far-end interference; in the case that PUSCH RSRP is greater than the fourth threshold, determining that the problem is due to uplink weak coverage; in the event that the TA distance is greater than the fifth threshold, it is determined that the problem is due to handoff coverage.

In a third aspect, the present application provides an electronic device, comprising: a processor and a memory; the memory stores instructions executable by the processor; the processor is configured to execute the instructions to cause the electronic device to implement the method of the first aspect described above.

In a fourth aspect, the present application provides a computer-readable storage medium comprising: computer software instructions; the computer software instructions, when run in an electronic device, cause the electronic device to implement the method of the first aspect described above.

In a fifth aspect, the present application provides a computer program product which, when run on a computer, causes the computer to perform the steps of the related method described in the first aspect above, to carry out the method of the first aspect above.

Advantageous effects of the second aspect to the fifth aspect described above refer to corresponding descriptions of the first aspect, and are not repeated.

Drawings

Fig. 1 is an application environment schematic diagram of a cause determining method for RRC reestablishment provided in the present application;

fig. 2 is a flow chart of a method for determining a cause of RRC reestablishment provided in the present application;

fig. 3 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

fig. 4 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

fig. 5 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

fig. 6 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

Fig. 7 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

fig. 8 is a flowchart of another method for determining a cause of RRC reestablishment provided in the present application;

fig. 9 is a schematic diagram of identifying RRC reestablishment service types provided in the present application;

fig. 10 is a schematic diagram of an RRC reestablishment determination problem cell provided in the present application;

fig. 11 is a schematic diagram of another RRC reestablishment determination problem cell provided in the present application;

fig. 12 is a schematic diagram of determining a cause of RRC reestablishment according to the present application;

fig. 13 is a schematic diagram of a cause determining device for RRC reestablishment provided in the present application;

fig. 14 is a schematic diagram of the composition of an electronic device provided in the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect, and those skilled in the art will understand that the terms "first", "second", and the like are not limited in number and execution order.

According to the third generation partnership project (3rd generation partnership project,3GPP) protocol, there are three ways to trigger RRC reestablishment: (1) handover triggered RRC reestablishment: starting a T304 timer in the process of executing signaling switching by User Equipment (UE), and triggering RRC reestablishment with a cause value of handover failure if the UE cannot complete random access in a target cell before T304 is overtime. (2) RRC reconfiguration triggered RRC reestablishment: in the state of the security mode activation, if the user equipment UE cannot be matched or compatible after receiving the reconfiguration message, the reestablishment of which the cause value is "reconfiguration failure (reconfiguration failure)" is triggered. (3) other type reconstruction: the other reconstruction reasons are generally three types: 1) Uplink RLC re-transmissions to the maximum number; 2) Failure of random access; 3) The user equipment UE step out T310 times out.

Because the three methods for triggering the RRC reestablishment cannot directly distinguish the service types to which the RRC reestablishment belongs, and are influenced by the statistical rule, the existing network cannot directly distinguish the service types to which the RRC reestablishment belongs from the voice system data and the signaling data, so that accurate problem analysis and optimization cannot be implemented on voice perception of the VONR in a targeted manner, and the method specifically comprises the following steps: (1) The wireless manufacturer telephone system cannot distinguish the voice service or the data service from the RRC reestablishment attempt times, so that the voice service cannot be subjected to problem analysis in a targeted manner. (2) The RRC reestablishment attempt can only strike points to the RRC reestablishment target cell, and the source side cell information can not be directly acquired, so that the real problem cell can not be acquired, and the optimization guidance is insufficient. (3) According to the classification of the 3GPP protocol, in three modes of triggering RRC reconstruction, the other reconstruction accounts for more than 80% of the current network statistics, and the problem reason for generating the other cannot be directly judged from the reason value, so that the optimization accuracy is affected. As an example, three ways of triggering RRC reestablishment in the 3GPP protocol are shown in table 1.

TABLE 1

The table 1 includes the proportion of RRC reestablishment in the total voice service and the proportion of three types of trigger reestablishment in the RRC reestablishment in the total RRC reestablishment. As shown in table 1, the proportion of RRC reestablishment to the total traffic is 1.56%. The handover failure type accounts for 10.62% of the total RRC reestablishment, the reconfiguration failure accounts for 0.34% of the total RRC reestablishment, and the other type accounts for 89.04% of the total RRC reestablishment. Wherein, the proportion of the other reconstruction is highest.

Therefore, how to determine the specific reason why the other class triggers RRC reestablishment so as to optimize the user speech perception for the specific reason is a current urgent problem to be solved.

In view of the foregoing, there is a need for a method for determining a cause of a problem cell in which RRC reestablishment occurs, and based on this, embodiments of the present application provide a method for determining a cause of RRC reestablishment, where a determining device determines, when RRC reestablishment belongs to a voice service, a problem cell in which RRC reestablishment occurs, so as to obtain signaling data and voice system data of the problem cell, and determine, according to the signaling data or the voice system data, a cause of the problem cell in which RRC reestablishment occurs. The method and the device realize automatic determination of the cause of RRC reconstruction of the problem cell, and compared with the prior art, the method and the device can determine the problem cell and the cause of the problem more quickly and accurately, make up the defect that the real problem cell cannot be acquired in the prior art, facilitate management staff to optimize voice perception of a user according to the problem cell and the cause of the problem in a targeted manner, and improve efficiency of user perception improvement.

The method for determining the cause of RRC reconstruction can be applied to an application environment shown in fig. 1. As shown in fig. 1, the application environment includes: a cause determining means 101 for RRC reestablishment (which may be simply referred to as determining means), a base station device 102 and a user terminal 103, wherein the determining means 101 and the base station device 102 are connected to each other, the determining means 101 and the user terminal 103 are connected to each other, and the base station device 102 and the user terminal 103 are connected to each other.

In some embodiments, the determining device 101 may be a server cluster formed by a plurality of servers, or a single server, or a computer, or a processor or a processing chip in a server or a computer, or the like. The embodiment of the present application does not limit the specific apparatus configuration of the determination device 101. In fig. 1, a single server is shown as an example of the determination device 101.

In some embodiments, the base station device 102 may be an evolved node b (eNB), a next generation base station (gNB), a transceiver point (transmission receive point, TRP), a transmission point (transmission point, TP), and some other access node. Base stations can be further classified into Macro base stations for providing Macro cells (Macro cells), micro base stations for providing micro cells (Pico cells), and Femto base stations for providing Femto cells (Femto cells), according to the size of the service coverage area provided. As wireless communication technology continues to evolve, future base stations may also be referred to by other names.

In some embodiments, the user terminal 103 may be a device with a wireless transceiving function, such as a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (personal digital assistant, PDA), and the like. The embodiment of the present invention does not limit the specific type of the front-end device 102, and a mobile phone terminal is illustrated in fig. 1.

In some embodiments, when a cause of a problem of RRC reestablishment needs to be determined, the determining apparatus 101 may determine a problem cell in a process of RRC reestablishment between the user terminal 103 and the base station device 102, obtain signaling data and voice system data of the problem cell, and further determine the cause of the problem of RRC reestablishment according to the signaling data and the voice system data.

Fig. 2 is a flowchart of a method for determining a cause of RRC reestablishment according to an embodiment of the present application. As shown in fig. 2, the method for determining the cause of RRC reestablishment provided in the present application may be implemented by the determining device, and specifically includes the following steps:

s201, the determining device determines a problem cell where RRC reestablishment occurs under the condition that the RRC reestablishment belongs to voice service.

In some embodiments, the determining means further determines a problem cell in which the RRC reestablishment occurs in order to analyze a procedure of the RRC reestablishment in case that it is determined that the type of traffic of the RRC reestablishment is voice traffic.

For example, the determining device may shorten the target parameter in the RRC reestablishment process, so that the RRC reestablishment fails, and a call drop occurs, thereby determining the problem cell according to the call drop index. The determining device may further obtain PCI information in the RRC reestablishment request, and determine that, in the signal coverage area of the base station closest to the reestablishment device, a cell corresponding to the PCI information is a problem cell.

It should be understood that in the prior art, when RRC reestablishing, RRC connection is often reestablished between the ue and the target cell, so the determining device cannot directly obtain the source cell information based on the RRC reestablishment procedure, that is, cannot obtain the actual problem cell. In addition, the voice sensing problem caused by the time delay during the RRC reestablishment can be reflected on the target cell and cannot be directly reflected on the problem cell, so that the determining device needs to determine the problem cell of the RRC reestablishment so as to optimize the voice quality aiming at the problem cell, and the voice sensing problem caused by the RRC reestablishment can be fundamentally solved.

S202, the determining device acquires signaling data and voice system data of the problem cell.

The signaling data is used for representing the signal quality when the user terminal uses voice service, and the voice system data is used for representing the network performance index of the user terminal.

In some embodiments, after the determining means determines the problem cell in which RRC reestablishment occurs, the determining means may acquire signaling data and voice system data of the problem cell so as to analyze a cause of the problem according to the signaling data or the voice system data.

It should be understood that the signaling data is a signaling set during RRC reestablishment between the ue and the target cell of the base station, and the session data is statistical data of network performance indexes collected by the network management system during RRC reestablishment.

The determining device may obtain signaling data for RRC reestablishment from a database of the user terminal, and may also obtain session data for RRC reestablishment from a network management system of the base station device.

S203, the determining device determines the cause of the RRC reestablishment of the problem cell according to the signaling data or the voice system data.

In some embodiments, after the determining device obtains the signaling data and the voice system data, the determining device may determine, according to the signaling data or the voice system data, a cause of the problem that the RRC reestablishment occurs in the problem cell.

For example, since the proportion of the RRC reestablishment of the other class is up to 89.04%, the determining device needs to locate the cause of the problem for the RRC reestablishment of the other class, where the primary reason for triggering the RRC reestablishment of the other class is: RLC retransmission maximum, random access failure, and UE out-of-step. These three reasons are due to the fact that weak coverage, poor SINR quality, background noise interference, uplink weak coverage, and handover coverage are exhibited on the air interface side. The determining device may perform multi-dimensional data cause association classification processing on the signaling data, and determine whether the cause of the RRC reestablishment problem is weak coverage and/or SINR quality difference. The determining device may further perform a multi-dimensional data reason association classification process on the unified data to determine whether the problem cause of RRC reconstruction is background noise interference and/or uplink weak coverage and/or handover coverage, where the multi-dimensional data reason association classification is one of multi-dimensional data reason association classification algorithms in the prior art, which is not limited in this embodiment of the present application.

The technical solution provided in the foregoing embodiments brings at least the following beneficial effects, and the method for determining a cause of RRC reestablishment provided in the embodiments of the present application determines, when RRC reestablishment belongs to a voice service, a problem cell in which RRC reestablishment occurs, so as to obtain signaling data and voice system data of the problem cell, and determines, according to the signaling data or the voice system data, a cause of the problem cell in which RRC reestablishment occurs. The method and the device realize automatic determination of the cause of RRC reconstruction of the problem cell, and compared with the prior art, the method and the device can determine the problem cell and the cause of the problem more quickly and accurately, make up the defect that the real problem cell cannot be acquired in the prior art, facilitate management staff to optimize voice perception of a user according to the problem cell and the cause of the problem in a targeted manner, and improve efficiency of user perception improvement.

The following describes in detail the method for determining the cause of RRC reestablishment according to the embodiments of the present application with reference to specific embodiments and attached drawings.

As shown in fig. 3, the method for determining the cause of RRC reestablishment provided in the present application may specifically include the following steps:

s301, the determining device determines the service type to which the RRC reestablishment belongs.

In some embodiments, the determining means may further determine a service type to which the RRC reestablishment belongs before determining the problematic cell in which the RRC reestablishment occurs. S301 specifically includes the following two possible implementations.

In a possible implementation manner, the RRC reestablishment process includes a target parameter, where the target parameter is used to characterize the duration of the retry performed by the terminal in the cell, as shown in fig. 4, S301 may be specifically implemented as the following S401-S402:

s401, the determining device reduces the target parameter from the preset duration to the first duration, and a call drop index of the QCI level is obtained.

Wherein, the call drop index comprises 5QI.

In some embodiments, the determining device reduces the target parameter in the RRC reestablishment process from the preset duration to the first duration, so that the RRC reestablishment failure occurs with call drop, and thus a call drop index of the QCI level is obtained. The preset duration is a duration required for normal RRC reestablishment, the first duration is a duration for RRC reestablishment failure and call drop occurrence, and the preset duration and the first duration are both set by a manager according to actual conditions, which is not limited in the embodiment of the present application.

It should be appreciated that the target parameters include a T311 timer and a T301 timer, wherein when the duration of the T311 timer ends, if the RRC reestablishment procedure is initiated due to a radio link failure or handover failure, a cell (non-susbtablecellfound) not found in a radio link failure Report (VarRLF-Report) is set to true; the user equipment goes into rrc_idle (IDLE mode) state and releases for the "RRC connection failure (RRC connection failure)". When the duration of the T301 timer expires, the UE considers that the target cell currently performing RRC reestablishment is not available, and will switch to rrc_idle state, and release the rrc_idle state because of "RRC connection failure (RRC connection failure)".

As an example, after the determining device reduces the target parameter from the preset duration to the first duration, the change of the dropped proportion of the voice service and the data service of the target cell is as shown in table 2:

TABLE 2

Table 2 includes two types of voice drop and data drop, the drop ratio of the voice service and the data service before and after adjustment, and the difference of the drop ratio of the voice service and the data service before and after adjustment. Before the adjustment, the voice disconnection ratio is 0.82%, the data disconnection ratio is 1.21%, the adjusted voice disconnection ratio is 1.56%, and the data disconnection ratio is 2.48%. The difference in the proportion of voice loss before and after adjustment was 0.74% rise, and the difference in the proportion of data loss was 1.27% rise.

And S402, determining that the service type to which the RRC reestablishment belongs is voice service under the condition that the 5QI is the target value.

In some embodiments, after the determining device obtains the call drop indicator, the service type of RRC reestablishment may be determined according to the value of 5QI in the call drop indicator, and in the case that 5QI is the target value, the service type to which the RRC reestablishment belongs is determined to be a voice service.

For example, the values of 5QI may be 1, 6, 7, 8, and 9, and when the value of 5QI is 1, the RRC reestablished traffic type is voice traffic, and when the value of 5QI is 6, 7, 8, or 9, the RRC reestablished traffic type is data traffic.

In another possible implementation manner, as shown in fig. 5, S301 may be specifically implemented as the following S501-S502:

s501, the determining device acquires an RRC reconfiguration message when RRC reestablishment is inter-station reestablishment.

Wherein the RRC reconfiguration message includes RLC information.

In some embodiments, after the determining device detects that RRC reestablishment is inter-station reestablishment, an RRC reconfiguration message sent by the base station to the user terminal in the RRC reestablishment process may be acquired.

It should be appreciated that RRC reestablishment falls into two categories: and under the condition that the RRC reestablishment is the intra-station reestablishment, the determining device can confirm the service type based on the time corresponding relation of the signaling during the RRC reestablishment. However, when RRC reestablishment is inter-station reestablishment, after inter-station reestablishment, cell id is changed, and there are too many users in the cell, so that association between the upper and lower time points cannot be confirmed, and voice service cannot be identified.

S502, determining that the service type to which the RRC reestablishment belongs is voice service under the condition that the RLC information indicates a non-acknowledgement mode.

In some embodiments, after the determining device obtains the RRC reconfiguration message, the determining device may determine, according to RLC information in the RRC reconfiguration message, a service type to which the RRC reestablishment belongs, and in case that the RLC information is in the unacknowledged mode, determine that the service type to which the RRC reestablishment belongs is a voice service.

Illustratively, RLC information includes two modes: a non-acknowledged mode (UM mode) and an acknowledged mode (AM mode), wherein the voice traffic is UM mode and the data traffic is AM mode, and therefore, the determining means can distinguish between voice traffic and data traffic based on RLC messages based on the same cell identity cellID. As an example, the service type is determined according to RLC information as shown in fig. 9, wherein RLC information (u 1-UM-RLC), i.e., voice service, is included in the signaling of uuap_rrc_recfg on the left side. The signalling of uuap_rrc_recfg on the right contains another RLC information (u 1-AM-RLC), i.e. data traffic.

It should be understood that in the prior art, the service type to which the RRC reestablishment belongs cannot be determined, so that the voice service of the user cannot be targeted for voice perception optimization. Therefore, the determining device determines the service type to which the RRC reestablishment belongs, and can analyze the problem reason of the RRC reestablishment of the voice service more pertinently so as to more accurately optimize the voice perception of the user.

S302, the determining device determines a problem cell where RRC reestablishment occurs under the condition that the RRC reestablishment belongs to voice service.

In some embodiments, the determining means may determine that the problem cell in which the RRC reestablishment occurs in case the RRC reestablishment belongs to the voice service after determining the service type of the RRC reestablishment. S302 specifically includes the following two possible implementations.

In one possible implementation manner, the determining device reduces the target parameter in the step S401 from the first time period to the second time period, and determines that the cell with the call drop index greater than the preset threshold is the problem cell. The second duration is a duration that the RRC reestablishment cannot reach the target cell, and when the user terminal sends the RRC reestablishment signaling to the target cell, the preset threshold is used to indicate a degree of dropped call of the voice service of the user, and the second duration and the preset threshold are set by a manager according to actual conditions, which is not limited in the embodiment of the present application.

It should be understood that, because the duration of modifying the target parameter may cause serious call drop of the user service, and the data service has little influence on the voice service due to insensitive perception, after determining that the device determines the problem cell with RRC reestablishment, the target parameter needs to be modified from the second duration to the preset duration as soon as possible, so as to ensure normal use of the user voice service, and avoid serious perception damage of the user.

As an example, the determining device reduces the target parameter from the first time length to the second time length, and determines the problem cell as shown in fig. 10, where when the timer T311 and the timer T301 are the preset time lengths (i.e. normal configuration), the RRC reestablishment process is performed normally, not statistically the call drop, and when the timer T311 and the timer T301 are the second time lengths (i.e. shortened), the RRC reestablishment fails, and the call drop is clicked on the source side, so that the problem cell can be determined.

In another possible implementation, as shown in fig. 6, S302 may be specifically implemented as the following S601-S602:

s601, the determining device acquires an RRC reestablishment request.

The RRC reestablishment request includes PCI information.

In some embodiments, after the determining device confirms that the service type to which the RRC reestablishment belongs is a voice service, the RRC reestablishment request sent by the user terminal to the target cell of the base station may be obtained.

S602, the determining device determines that the cell corresponding to the PCI information is a problem cell in the signal coverage of the base station closest to the reconstructing device.

In some embodiments, after the determining device obtains the RRC reestablishment request, the determining device determines, according to the PCI information in the RRC reestablishment request, that, in the signal coverage area of the base station closest to the reestablishment device, a cell having the same PCI information as that in the RRC reestablishment request is a problem cell.

For example, the determining device determines the problem cell according to the PCI information, as shown in fig. 11, where the RRC reestablishment request carries the PCI information (physCellId: 0x88 (136)) of the source cell (i.e., the problem cell), as shown in fig. 11, in the signal coverage of the base station near the reestablishment device, the PCI information of two cells is 136, and the 5G base station (gndeb) and the cell identification code (cellID) of the cell nearest to the reestablishment device are obtained, and the problem cell is determined according to the gndeb and the cellID.

S303, the determining device acquires signaling data and voice system data of the problem cell.

The signaling data is used for representing the signal quality when the user terminal uses voice service, and the voice system data is used for representing the network performance index of the user terminal.

The description of S303 may be referred to the description of S202, and the detailed description is not repeated here.

S304, the determining device determines the cause of the RRC reestablishment of the problem cell according to the signaling data or the voice system data.

In some embodiments, after the determining device obtains the signaling data and the voice system data, the determining device may determine, according to the signaling data or the voice system data, a cause of the problem that the RRC reestablishment occurs in the problem cell. S304 specifically includes the following two possible implementations.

In one possible implementation, the determining means determines whether the cause of the problem of the RRC reestablishment of the problem cell is related to signal quality according to signaling data, the signaling data comprising at least one of the following parameters: RSRP and SINR, as shown in fig. 7, S304 may be specifically implemented as follows S701-S702:

s701, the determining device determines that the problem is due to weak coverage when RSRP is smaller than a first threshold.

In some embodiments, the determining means determines that the problem of the RRC reestablishment of the problem cell is due to weak coverage in case RSRP in the signaling data is smaller than a first threshold. The first threshold is-110 dBm, which can be adjusted by a manager according to practical situations, and the embodiment of the application is not limited to this.

S702, the determining device determines that the problem cause is SINR quality difference when SINR is smaller than a second threshold value.

In some embodiments, the determining means determines that the problem of RRC reestablishment of the problem cell occurs because of poor SINR quality if the SINR in the signaling data is less than the second threshold. The second threshold is-3 dB, which can be adjusted by a manager according to practical situations, which is not limited in the embodiment of the present application.

Illustratively, the determining means determines the cause of the problem according to RSRP and SINR as shown in fig. 12, wherein RSRP is 0x41 (65) (greater than the first threshold) and SINR is 0x49 (73) (greater than the second threshold) in uuap_rrc_meas_rprt, and therefore the determining means determines the cause of the problem of the cell irrespective of weak coverage and SINR quality difference.

In another possible implementation manner, the determining device determines whether the cause of the problem of RRC reestablishment of the problem cell is related to a network indicator according to session data, where the session data includes at least one of the following parameters: uplink background noise, SRS interference, last symbol interference, PUSCH RSRP, and TA distance, as shown in fig. 8, S304 may be specifically implemented as the following S801-S805:

s801, determining that the problem is caused by full-band interference under the condition that the uplink background noise is larger than a third threshold value by the determining device.

In some embodiments, the determining device determines that the problem of RRC reestablishment of the problem cell is due to full band interference in a case where uplink background noise in the speech system data is greater than a third threshold. The third threshold is-100 dBm, which can be adjusted by a manager according to practical situations, and the embodiment of the application is not limited to this.

S802, the determining device determines that the problem is caused by SRS interference when the SRS interference is larger than a third threshold.

In some embodiments, the determining means determines that the problem of RRC reestablishment of the problem cell is due to SRS interference if SRS interference in the speech system data is greater than a third threshold.

S803, the determining device determines that the problem is caused by far-end interference when the last symbol interference is greater than a third threshold.

In some embodiments, the determining means determines that the problem of RRC reestablishment of the problem cell is due to remote interference if the last symbol interference in the speech data is greater than a third threshold.

It should be appreciated that the full band interference, SRS interference, and far end interference described above are all background noise interference.

S804, the determining device determines that the problem is due to uplink weak coverage when PUSCH RSRP is greater than a fourth threshold.

In some embodiments, the determining means determines that the problem of the RRC reestablishment of the problem cell is due to uplink weak coverage in case PUSCH RSRP in the session data is greater than a fourth threshold. The fourth threshold is 40%, that is, the duty ratio of PUSCH RSRP is lower than-130 dBm is greater than 40%, and may be adjusted by a manager according to practical situations, which is not limited in the embodiment of the present application.

S805, determining means determines that the problem is due to the handover coverage if the TA distance is greater than the fifth threshold.

In some embodiments, the determining means determines that the problem of RRC reestablishment of the problem cell is due to handover coverage if the TA distance in the session data is greater than a fifth threshold. The fifth threshold is 2km, and may be adjusted by a manager according to practical situations, which is not limited in the embodiment of the present application.

Illustratively, the determining means determines the corresponding cause of the problem based on the phone system data as shown in table 3.

TABLE 3 Table 3

Table 3 includes, the reasons classified as: background interference, uplink weak coverage, and handoff coverage. The phenomenon association identification based on the telephone system comprises that uplink background noise is more than-100 dBm and is full-band interference, SRS interference is more than-100 dBm and is SRS interference, and finally symbol interference is more than-100 dBm and is far-end interference, the occupation ratio of PUSCH RSRP lower than-130 dBm is more than 40% and is uplink coverage difference, namely uplink weak coverage, and TA distance is more than 2km and is too far coverage, namely cross-zone coverage. Wherein, the full band interference, SRS interference and far-end interference all belong to the bottom noise interference.

It should be understood that, according to the above method, the determining device may determine the cause of the problem cell that sends the RRC reestablishment, and the determining device may determine the duty ratio of each cause of the problem in the problem cell based on multiple voice services of multiple users in the problem cell over a period of time. As an example, the problem cause duty ratio of cell a and cell B over a period of time is shown in table 4.

TABLE 4 Table 4

Table 4 includes the number of other RRC reconstructions of the problem cells a and B, and the cause classification duty cycle of the RRC reconstruction. Wherein, the reason classification includes: weak coverage, uplink coverage problems (i.e., uplink weak coverage as described above), poor SINR quality, handoff problems (i.e., handoff as described above), and background noise interference. The number of other RRC reestablishment of the problem cell A is 21, the weak coverage ratio is 68.20%, the uplink coverage problem is 10.91%, the SINR quality difference is 11.26%, the cross-zone coverage ratio is 7.94%, and the background noise interference ratio is 1.69%. The number of other RRC reestablishment of the problem cell B is 17, the weak coverage ratio is 47.35%, the uplink coverage problem is 11.25%, the SINR quality difference is 29.76%, the cross-zone coverage ratio is 10.73%, and the background noise interference ratio is 0.91%.

In addition, after the determining device determines the problem reason of the RRC reestablishment of the problem cell, the manager can optimize the voice perception of the user in the problem cell according to the problem reason so as to improve the voice perception quality of the user.

The technical solution provided in the foregoing embodiments brings at least the following beneficial effects, and the method for determining a cause of RRC reestablishment provided in the embodiments of the present application determines, when RRC reestablishment belongs to a voice service, a problem cell in which RRC reestablishment occurs, so as to obtain signaling data and voice system data of the problem cell, and determines, according to the signaling data or the voice system data, a cause of the problem cell in which RRC reestablishment occurs. The method and the device realize automatic determination of the cause of RRC reconstruction of the problem cell, and compared with the prior art, the method and the device can determine the problem cell and the cause of the problem more quickly and accurately, make up the defect that the real problem cell cannot be acquired in the prior art, facilitate management staff to optimize voice perception of a user according to the problem cell and the cause of the problem in a targeted manner, and improve efficiency of user perception improvement.

Furthermore, the determining device may further determine, in advance, a service type to which the RRC reestablishment belongs, and further analyze a cause of a problem of the RRC reestablishment when the service type is a voice service, so that positioning of the cause of the problem is directly related to the voice service of the user, so as to improve voice perception quality of the user more specifically.

In an exemplary embodiment, the present application further provides a cause determining apparatus for RRC reestablishment. The cause determining device for RRC reestablishment may include one or more functional modules, configured to implement the cause determining method for RRC reestablishment in the above method embodiment.

For example, fig. 13 is a schematic diagram of a cause determining apparatus for RRC reconstruction according to an embodiment of the present application. As shown in fig. 13, the cause determining apparatus for RRC reestablishment includes: a determination module 1301 and an acquisition module 1302.

The determining module 1301 is configured to determine that the RRC reestablishment occurs in a problem cell in a case where the RRC reestablishment belongs to the voice service. The obtaining module 1302 is configured to obtain signaling data of the problematic cell and session data, where the signaling data is used to characterize signal quality when the user terminal uses voice service, and the session data is used to characterize a network performance index of the user terminal. The determining module 1301 is further configured to determine, according to the signaling data or the voice system data, a cause of the problem that the RRC reestablishment occurs in the problem cell.

In some embodiments, the determining module 1301 is further configured to determine a service type to which the RRC reestablishment belongs.

In other embodiments, the RRC reestablishment procedure includes a target parameter, where the target parameter is used to characterize the duration of the retry performed by the terminal for the access cell. The determining module 1301 is specifically configured to reduce the target parameter from the preset duration to the first duration, obtain a call drop indicator of the QCI level, where the call drop indicator includes 5QI, and determine that the service type to which the RRC reestablishment belongs is a voice service under the condition that the 5QI is the target value.

In still other embodiments, the determining module 1301 is specifically configured to reduce the target parameter from the first time period to the second time period, and determine that the cell whose call drop indicator is greater than the preset threshold is a problem cell.

In still other embodiments, the determining module 1301 is specifically configured to obtain an RRC reconfiguration message when the RRC reestablishment is an inter-station reestablishment, where the RRC reconfiguration message includes RLC information, and determine that the service type to which the RRC reestablishment belongs is voice service when the RLC information indicates a non-acknowledged mode.

In still other embodiments, the determining module 1301 is specifically configured to obtain an RRC reestablishment request, where the RRC reestablishment request includes PCI information, and determine, in a signal coverage area of a base station closest to the reestablishment device, a cell corresponding to the PCI information as a problem cell.

In still other embodiments, the signaling data includes at least one of the following parameters: RSRP and SINR. The determining module 1301 is specifically configured to determine that the problem is due to weak coverage in a case where RSRP is less than a first threshold; in the case where the SINR is less than the second threshold, it is determined that the cause of the problem is poor SINR quality.

In still other embodiments, the voice system data includes at least one of the following parameters: uplink background noise, SRS interference, last symbol interference, PUSCH RSRP, and TA distance. The determining module 1301 is specifically configured to determine that the problem cause is full-band interference when the uplink background noise is greater than the third threshold, determine that the problem cause is SRS interference when the SRS interference is greater than the third threshold, determine that the problem cause is far-end interference when the last symbol interference is greater than the third threshold, determine that the problem cause is uplink weak coverage when the PUSCH RSRP is greater than the fourth threshold, and determine that the problem cause is handover coverage when the TA distance is greater than the fifth threshold.

In an exemplary embodiment, the embodiment of the present application further provides an electronic device, which may be the apparatus for determining the cause of RRC reestablishment in the foregoing method embodiment. Fig. 14 is a schematic diagram of an electronic device according to an embodiment of the present application. As shown in fig. 14, the electronic device may include: a processor 1401 and a memory 1402; memory 1402 stores instructions executable by processor 1401; the processor 1401 is configured to execute instructions that, when executed, cause an electronic device or network device or manager to implement a method as described in the foregoing method embodiments.

In an exemplary embodiment, the present application also provides a computer-readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a computer, cause the computer to implement the method as described in the previous embodiments. The computer readable storage medium may be a non-transitory computer readable storage medium, for example, a ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

In an exemplary embodiment, the present application further provides a computer program product, which when run on a computer, causes the computer to perform the above-mentioned related method steps to implement the cause determining method of RRC reestablishment in the above-mentioned embodiments.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (18)

1. A cause determining method for radio resource control RRC reestablishment, applied to a reestablishing device, the method comprising:

under the condition that RRC reestablishment belongs to voice service, determining a problem cell where the RRC reestablishment occurs;

acquiring signaling data and voice system data of the problem cell; the signaling data is used for representing the signal quality when the user terminal uses the voice service; the voice system data is used for representing network performance indexes of the user terminal;

and determining the problem reason of the RRC reestablishment of the problem cell according to the signaling data or the voice system data.

2. The method of claim 1, wherein prior to the determining that the RRC reestablishment problem cell occurs, the method further comprises:

and determining the service type to which the RRC reestablishment belongs.

3. The method according to claim 2, wherein the RRC reestablishment procedure includes a target parameter, where the target parameter is used to characterize a duration of retries performed by the terminal for the access cell; the determining the service type to which the RRC reestablishment belongs includes:

Reducing the value of the target parameter from a preset duration to a first duration, and acquiring a call drop index of a QCI (quality of service) level identifier; the call drop index comprises a fifth generation mobile communication technology service quality identifier (5 QI);

and under the condition that the 5QI is the target value, determining the service type to which the RRC reestablishment belongs as voice service.

4. A method according to claim 3, wherein said determining a problem cell in which said RRC re-establishment occurs comprises:

and reducing the value of the target parameter from the first time length to a second time length, and determining that the cell with the call drop index larger than the preset threshold is the problem cell.

5. The method according to claim 2, wherein said determining the service type to which the RRC re-establishment belongs comprises:

acquiring an RRC reconfiguration message under the condition that the RRC reestablishment is inter-station reestablishment; the RRC reconfiguration message includes radio link control, RLC, information;

and under the condition that the RLC information indicates a non-acknowledgement mode, determining the service type to which the RRC reestablishment belongs as voice service.

6. The method of claim 1, wherein the determining the problem cell in which the RRC reestablishment occurred comprises:

Acquiring an RRC reestablishment request; the RRC reestablishment request comprises Peripheral Component Interconnect (PCI) information;

and determining the cell corresponding to the PCI information as the problem cell in the signal coverage area of the base station closest to the reconstruction device.

7. The method of claim 1, wherein the signaling data comprises at least one of the following parameters: reference signal received power RSRP and signal to interference plus noise ratio SINR; according to the signaling data, determining a problem reason for the RRC reestablishment of the problem cell, including:

determining that the problem is due to weak coverage if the RSRP is less than a first threshold;

in the event that the SINR is less than a second threshold, it is determined that the problem is due to poor SINR quality.

8. The method of claim 1, wherein the voice system data comprises at least one of the following parameters: uplink background noise, sounding reference signal SRS interference, last symbol interference, physical uplink shared channel PUSCH RSRP and tracking area TA distance; determining, according to the session data, a cause of the problem of the RRC reestablishment of the problem cell, including:

determining that the problem is due to full-band interference if the uplink background noise is greater than a third threshold;

Determining that the problem is due to SRS interference if the SRS interference is greater than the third threshold;

determining that the problem is due to far-end interference if the last symbol interference is greater than the third threshold;

determining that the problem is due to uplink weak coverage in the case that the PUSCH RSRP is greater than a fourth threshold;

in the event that the TA distance is greater than a fifth threshold, it is determined that the problem is due to handoff coverage.

9. A cause determining apparatus for RRC reestablishment, applied to a reestablishing apparatus, the apparatus comprising: a determining module and an acquiring module;

the determining module is used for determining a problem cell where the RRC reestablishment occurs under the condition that the RRC reestablishment belongs to voice service;

the acquisition module is used for acquiring signaling data and voice system data of the problem cell; the signaling data is used for representing the signal quality when the user terminal uses the voice service; the voice system data is used for representing network performance indexes of the user terminal;

the determining module is further configured to determine, according to the signaling data or the voice system data, a cause of the problem that the RRC reestablishment occurs in the problem cell.

10. The apparatus of claim 9, wherein the means for determining is further configured to determine a type of service to which the RRC reestablishment belongs.

11. The apparatus of claim 10, wherein the RRC reestablishment procedure includes a target parameter, where the target parameter is used to characterize a duration of retries performed by the terminal for the access cell; the determining module is specifically configured to reduce the value of the target parameter from a preset duration to a first duration, and obtain a call drop indicator of the QCI level; the call drop index comprises 5QI; and under the condition that the 5QI is the target value, determining the service type to which the RRC reestablishment belongs as voice service.

12. The apparatus of claim 11, wherein the determining module is specifically configured to reduce the value of the target parameter from the first time period to a second time period, and determine that the cell with the call drop indicator greater than the preset threshold is the problem cell.

13. The apparatus according to claim 10, wherein the determining module is specifically configured to obtain an RRC reconfiguration message if the RRC reestablishment is an inter-station reestablishment; the RRC reconfiguration message includes RLC information; and under the condition that the RLC information indicates a non-acknowledgement mode, determining the service type to which the RRC reestablishment belongs as voice service.

14. The apparatus of claim 9, wherein the determining module is specifically configured to obtain an RRC reestablishment request; the RRC reestablishment request comprises PCI information; and determining the cell corresponding to the PCI information as the problem cell in the signal coverage area of the base station closest to the reconstruction device.

15. The apparatus of claim 9, wherein the signaling data comprises at least one of the following parameters: RSRP and SINR; the determining module is specifically configured to determine that the problem is due to weak coverage if the RSRP is less than a first threshold; in the event that the SINR is less than a second threshold, it is determined that the problem is due to poor SINR quality.

16. The apparatus of claim 9, wherein the voice system data comprises at least one of the following parameters: uplink background noise, SRS interference, last symbol interference, PUSCH RSRP and TA distance; the determining module is specifically configured to determine that the problem is due to full-band interference when the uplink noise floor is greater than a third threshold; determining that the problem is due to SRS interference if the SRS interference is greater than the third threshold; determining that the problem is due to far-end interference if the last symbol interference is greater than the third threshold; determining that the problem is due to uplink weak coverage in the case that the PUSCH RSRP is greater than a fourth threshold; in the event that the TA distance is greater than a fifth threshold, it is determined that the problem is due to handoff coverage.

17. An electronic device, the electronic device comprising: a processor and a memory;

the memory stores instructions executable by the processor;

the processor is configured to, when executing the instructions, cause the electronic device to implement the method of any one of claims 1-8.

18. A computer-readable storage medium, the computer-readable storage medium comprising: computer software instructions;

when run in an electronic device of computer software instructions, cause the electronic device to implement the method of any one of claims 1-8.