CN113038546A - Cell switching method and device and computing equipment - Google Patents

Cell switching method and device and computing equipment Download PDF

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Publication number
CN113038546A
CN113038546A CN201911349641.7A CN201911349641A CN113038546A CN 113038546 A CN113038546 A CN 113038546A CN 201911349641 A CN201911349641 A CN 201911349641A CN 113038546 A CN113038546 A CN 113038546A
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China
Prior art keywords
user terminal
pilot frequency
cell
value
mos
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CN201911349641.7A
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Chinese (zh)
Inventor
田钢锋
蔡志勇
胡国峰
朱峰
钱能
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China Mobile Communications Group Co Ltd
China Mobile Group Zhejiang Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Zhejiang Co Ltd
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Priority to CN201911349641.7A priority Critical patent/CN113038546A/en
Publication of CN113038546A publication Critical patent/CN113038546A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0058Transmission of hand-off measurement information, e.g. measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention relates to the technical field of communication, and discloses a cell switching method, a cell switching device and computing equipment. The method comprises the following steps: acquiring an MOS value in real time when a user terminal carries out VoLTE voice call; if the MOS value is smaller than a preset threshold value, controlling a Mobility Management Entity (MME) to send a pilot frequency measurement control instruction to a base station connected with the user terminal so that the user terminal reports a pilot frequency measurement report; receiving the pilot frequency test report, and judging whether the cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time; and if so, performing pilot frequency cell switching on the user terminal. Through the mode, the embodiment of the invention can evaluate the actual voice perception of the user and switch the user at the voice perception edge to the pilot frequency cell, thereby improving the voice quality.

Description

Cell switching method and device and computing equipment
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell switching method, a cell switching device and computing equipment.
Background
Currently, a handover method of Long Term Evolution (LTE) includes: pilot frequency handover based on downlink coverage, pilot frequency handover based on load balancing, pilot frequency handover based on frequency priority, pilot frequency handover based on traffic, pilot frequency handover based on distance, pilot frequency handover based on uplink quality, pilot frequency handover based on voice quality, and the like.
The selection of the handover mode is mainly determined by parameters, and Voice services of Voice over Long-Term Evolution (VoLTE) in the current network are commonly switched by pilot frequency based on downlink coverage and pilot frequency based on Voice quality. In the pilot frequency switching mode based on downlink coverage, a user occupies an LTE cell, cell Signal measurement of pilot frequency points is started when signals are lower than a specific threshold value, and pilot frequency switching is initiated when the measured pilot Signal Receiving Power (Reference Signal Receiving Power, RSRP) and the RSRP of the cell meet the configured events of A3, A4 or A5; in pilot frequency switching based on voice quality, the air interface quality of a user is evaluated through the QCI1 packet loss rate, the higher the packet loss rate is, the worse the air interface quality is, the worse the user perception is, and at the moment, a user terminal is migrated to a cell of a pilot frequency point.
However, currently, in the pilot frequency handover based on downlink coverage and the pilot frequency handover based on voice quality, the actual voice perception of the user cannot be accurately evaluated by using the downlink coverage and the QCI1 uplink packet loss as the pilot frequency handover judgment basis.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present invention provide a cell handover method, apparatus, and computing device, which overcome the foregoing problems or at least partially solve the foregoing problems.
According to an aspect of the embodiments of the present invention, there is provided a cell handover method, including:
acquiring an MOS value in real time when a user terminal carries out VoLTE voice call;
if the MOS value is smaller than a preset threshold value, controlling a Mobility Management Entity (MME) to send a pilot frequency measurement control instruction to a base station connected with the user terminal so that the user terminal reports a pilot frequency measurement report;
receiving the pilot frequency test report, and judging whether the cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time;
and if so, performing pilot frequency cell switching on the user terminal.
In an optional manner, the obtaining the MOS value in real time further includes: and acquiring a voice data packet of the user terminal from an S1-U port of the gateway S/P-GW in real time, and calculating the MOS value according to the voice data packet.
In a selectable manner, the performing inter-frequency cell handover on the user equipment further includes: and triggering a pilot frequency switching process aiming at the user terminal so as to transfer the voice service of VoLTE voice uplink and downlink MOS diversity to a pilot frequency cell.
In an optional manner, before the obtaining the MOS value in real time when the user terminal performs the VoLTE voice call, the method further includes: and judging whether the user terminal establishes the VoLTE voice call.
In an optional manner, the determining whether the ue establishes a VoLTE voice call further includes: and if the gateway S/P-GW sends or receives the first SIP signaling, determining that the user terminal establishes the VoLTE voice call.
In an optional manner, it is determined whether the ue stops the VoLTE voice call, and if so, the MOS value is stopped being obtained.
In an optional manner, the user terminal is: and the user terminal establishes a bearer link with the base station, registers to the IMS domain, establishes the bearer of the QCI5 and simultaneously establishes the dedicated bearer of the QCI 1.
According to another aspect of the embodiments of the present invention, there is provided a cell switching apparatus, including:
the real-time acquisition module is used for acquiring an MOS value in real time when the VoLTE voice call is carried out by the user terminal;
a control module, configured to control a mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected to the user terminal, so that the user terminal reports a pilot frequency measurement report, if the MOS value is smaller than a preset threshold;
the judging module is used for receiving the pilot frequency test report and judging whether the cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time;
and the switching module is used for switching the pilot frequency cell to the user terminal if the pilot frequency cell is the pilot frequency cell.
According to still another aspect of an embodiment of the present invention, there is provided a computing device including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the cell handover method as described above.
According to another aspect of the embodiments of the present invention, there is provided a computer storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to execute the cell handover method as described above.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram illustrating an application environment of a cell handover method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a cell handover method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a cell handover method according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computing device provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The cell switching method and the cell switching device provided by the embodiment of the invention can be applied to various computing devices or analysis processing devices. The following description will be made specifically taking a computing device as an example.
Fig. 1 is a schematic diagram illustrating an application environment of a cell handover method according to an embodiment of the present invention. As shown in fig. 1, the application environment includes: a gateway S/P-GW, a mobility management entity MME, an access network E-UTRAN and a user terminal UE.
The number of the MME is two or more, the number of the access network E-UTRAN is two or more, each MME is correspondingly connected with one access network E-UTRAN, and the MME are connected through an S10 interface. The gateway S/P-GW is respectively connected with a mobility management entity MME and an access network E-UTRAN. The user terminal UE is in communication connection with the access network E-UTRAN.
The Access Network E-UTRAN (E-UTRAN) comprises a plurality of evolution nodes NodeBs (eNodeBs). The eNodeB is interconnected with the user terminal UE through an LTE-Uu interface, is in communication connection with a gateway S/P-GW through an S1-U interface and is in communication connection with a mobile management entity MME through an S1-MME interface. The access network E-UTRAN is used to provide radio resources for the access of user terminals UE.
The Mobility Management Entity MME (Mobility Management Entity, MME) is a control plane functional Entity, that is, a server for temporarily storing user data, and is mainly used for: mobility management, bearer management, authentication of the user, selection of a gateway, etc.
Wherein, the gateway S/P-GW includes: a Serving gateway (S-Way) and a Packet Data Network gateway (PDN-GW). The S-GW and the PDN-GW may be set separately or in combination, and in fig. 1, in view of saving signaling overhead and reducing data roundabout, the S-GW and the PDN-GW are set in the same physical node. The gateway S/P-GW is in communication connection with the mobile management entity MME through an S11 interface or a Gn interface. The S-GW is terminated at an E-UTRAN interface, is mainly responsible for user plane processing, routing and forwarding functions of data packets and the like, supports switching of different access technologies of a third Generation Partnership Project (3 GPP), and serves as an anchor point of a user plane when switching occurs; the P-GW is in charge of a gateway of a Packet Data Network (PDN) accessed by User Equipment (UE), is also used for allocating a user IP address, and is a mobility anchor point of a 3GPP access system and a non-3 GPP access system.
The User Equipment UE (User Equipment, UE) can perform Voice over Long-Term Evolution (VoLTE) Voice service. In this embodiment, before performing VoLTE voice service, the UE first establishes a bearer link with the base station and registers to the IMS domain, establishes a bearer of QCI5, and simultaneously establishes a dedicated bearer of QCI 1.
In this embodiment, the application environment further includes: a computing device. The computing device is respectively in communication connection with the gateway S/P-GW and the mobility management entity MME. The computing device is in communication connection with the gateway S/P-GW through the Gm interface, and can send a control instruction to the mobility management entity MME to realize cell handover of the user terminal UE.
The embodiments of the present invention will be further explained with reference to the drawings.
Fig. 2 shows a flowchart of a cell handover method according to an embodiment of the present invention. The method is applied in a computing device, such as a server in a communication network. As shown in fig. 1, the method comprises the steps of:
and step 110, acquiring an MOS value in real time when the user terminal carries out VoLTE voice call.
In the international standard, the quality of compressed voice received by a system is evaluated by uniformly using a Mean Opinion Score (MOS) value. In step 110, obtaining the MOS value in real time, further includes: and acquiring a voice data packet of the user terminal from an S1-U port of the gateway S/P-GW in real time, and calculating an MOS value according to the voice data packet. The calculation of the MOS value according to the voice data packet belongs to the prior art, and is not described herein again.
And step 120, if the MOS value is smaller than the preset threshold, controlling the mobility management entity MME to send a pilot frequency measurement control instruction to the base station connected to the user terminal, so that the user terminal reports a pilot frequency measurement report.
And judging whether the current voice quality influences the user perception by judging whether the MOS value is smaller than a preset threshold value or not.
When the MOS value is smaller than the preset threshold, controlling the mobility management entity MME to send a pilot frequency measurement control instruction to the base station connected to the user terminal, so that the user terminal reports a pilot frequency measurement report, which may be specifically performed as follows: sending a control instruction to a mobility management entity MME, sending a pilot frequency measurement control instruction to a base station eNodeB connected with a user terminal by the mobility management entity MME according to the control instruction, receiving the pilot frequency measurement control instruction by the base station eNodeB, controlling the user terminal to report a pilot frequency measurement report by the base station eNodeB according to the control instruction, transmitting the pilot frequency measurement report to the mobility management entity MME by the base station eNodeB through an S1-MME interface after the user terminal reports the pilot frequency measurement report to the base station eNodeB, and returning the pilot frequency measurement report to computing equipment by the mobility management entity MME.
Step 130, receiving the pilot frequency test report, and determining whether the cell level value in the pilot frequency test report in the preset time is greater than or equal to a preset threshold value.
The pilot frequency test report comprises the handover candidate pilot frequency cells and the level values of the pilot frequency cells.
And step 140, if yes, performing inter-frequency cell switching on the user terminal.
In this step, if the cell level value in the pilot frequency test report is greater than or equal to the preset threshold value within the preset time, the pilot frequency cell switching is performed on the user terminal. Wherein the preset threshold is an a4 threshold.
Wherein, the inter-frequency cell handover to the user terminal further comprises: and triggering a pilot frequency switching process aiming at the user terminal so as to transfer the voice service of VoLTE voice uplink and downlink MOS diversity to a pilot frequency cell. For example, a Session Border Controller (SBC) is instructed to send a dual-mode Single-standby Voice Call Continuity (SRVCC) handover request, an SRVCC handover procedure is initiated to a ue, and the ue switches an originally connected E-UTRAN to another E-UTRAN, thereby transferring a Voice service of a Voice uplink and downlink MOS diversity of the VoLTE to an inter-frequency cell.
Wherein, the method also comprises: if the cell level value in the pilot frequency test report is smaller than the preset threshold value within the preset time, the step 110 is returned.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
In some embodiments, as shown in fig. 3, prior to step 110, the method further comprises:
and 150, judging whether the user terminal establishes the VoLTE voice call.
Wherein, judge whether user terminal sets up VoLTE voice call, further include: and if the gateway S/P-GW sends or receives the first SIP signaling, determining that the user terminal establishes the VoLTE voice call.
The first SIP signaling is a response SIP signaling of a Session Initiation Protocol (SIP) for Acknowledgement Characters (ACK), and if the gateway S-GW sends or receives the response SIP signaling of the ACK, it is determined that the user terminal establishes the VoLTE voice call.
In step 150, if the gateway S/P-GW does not send or receive the first SIP signaling, it is determined that the user terminal does not establish the VoLTE voice call, and then the acquiring of the MOS value is stopped; if the gateway S/P-GW sends or receives the first SIP signaling, it is determined that the user terminal establishes the VoLTE voice call, and step 110 is executed.
And step 160, judging whether the user terminal stops VoLTE voice communication.
Wherein, judge whether user terminal stops VoLTE voice call, further include: and if the gateway S/P-GW sends or receives the second SIP signaling, determining that the user terminal stops the VoLTE voice call.
The second SIP signaling is on-hook SIP signaling, and the on-hook SIP signaling comprises a BYE message and a cancel message. When the gateway S-GW sends or receives an on-hook SIP signaling, the user terminal is determined to cancel or interrupt the VoLTE voice call successfully, namely the user terminal is determined to stop the VoLTE voice call, and at the moment, the actual call perception of the user is stopped to be evaluated when the user terminal is on-hook normally or is released abnormally.
In step 160, if it is determined that the user terminal stops the VoLTE voice call, the MOS value stops being acquired; if it is determined that the user equipment does not stop the VoLTE voice call, step 110 is executed.
In some embodiments, as shown in fig. 3, the method further comprises:
step 170, if the MOS value is greater than or equal to the preset threshold, controlling the mobility management entity MME to send a pilot frequency measurement stop control instruction to the base station connected to the user terminal, so that the user terminal stops reporting the pilot frequency measurement report, and returning to step 150.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
Fig. 4 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention. As shown in fig. 4, the apparatus 400 includes: a real-time acquisition module 410, a control module 420, a judgment module 430 and a switching module 440.
The real-time obtaining module 410 is configured to obtain an MOS value in real time when the user terminal performs a VoLTE voice call; the control module 420 is configured to control the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected to the user terminal if the MOS value is smaller than a preset threshold, so that the user terminal reports a pilot frequency measurement report; the determining module 430 is configured to receive the pilot frequency test report, and determine whether a cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time; the switching module 440 is configured to perform inter-frequency cell switching on the ue if the ue is in the inter-frequency cell switching state.
In an optional manner, the real-time obtaining module 410 is specifically configured to: and acquiring a voice data packet of the user terminal from an S1-U port of the gateway S/P-GW in real time, and calculating the MOS value according to the voice data packet.
In an optional manner, the switching module 440 is specifically configured to: and triggering a pilot frequency switching process aiming at the user terminal so as to transfer the voice service of VoLTE voice uplink and downlink MOS diversity to a pilot frequency cell.
In an optional manner, before the real-time obtaining module 410, the apparatus 400 further includes: and a call judgment module. The call judging module is used for judging whether the user terminal establishes the VoLTE voice call.
In an optional manner, the call determination module is specifically configured to determine that the user terminal establishes a VoLTE voice call if the gateway S/P-GW sends or receives the first SIP signaling.
In an optional manner, the apparatus 400 further comprises: and stopping the call judgment module. The call stopping judgment module is used for: and judging whether the user terminal stops VoLTE voice communication, if so, stopping acquiring the MOS value.
In an optional manner, the user terminal is: and the user terminal establishes a bearer link with the base station, registers to the IMS domain, establishes the bearer of the QCI5 and simultaneously establishes the dedicated bearer of the QCI 1.
In this embodiment, please refer to fig. 1 together, the cell switching apparatus 400 is installed between the gateway S/P-GW and the mobility management entity MME, and is connected to the gateway S/P-GW and the mobility management entity MME respectively. Specifically, after the user terminal establishes a bearer link with the base station and registers to the ISM domain, establishes a bearer of QCI5, and simultaneously establishes a dedicated bearer of QCI1, whether the user terminal establishes a VoLTE voice call is determined based on the gateway S/P-GW, when it is determined that the user terminal establishes the VoLTE voice call, the real-time acquisition module 410 acquires a MOS value at the Gm port of the gateway S/P-GW in real time when the VoLTE voice call is performed at the user terminal, if the MOS value is smaller than a preset threshold, the control module 420 controls the mobility management entity MME to send an inter-frequency measurement control instruction to the base station connected to the user terminal, so that the user terminal reports an inter-frequency measurement report, the determination module 430 receives the inter-frequency test report, determines whether a cell level value in the inter-frequency test report within a preset time is greater than or equal to the preset threshold, and when the cell level value in the inter-frequency test report within the preset time is greater than or equal to the preset threshold, the switching module 440 performs inter-frequency cell switching on the user terminal, so as to transfer the voice service of the uplink and downlink MOS diversity of the VoLTE voice of the user terminal to the inter-frequency cell.
It should be noted that the cell handover apparatus provided in the embodiments of the present invention is an apparatus capable of performing the cell handover method, and all embodiments of the cell handover method are applicable to the apparatus and can achieve the same or similar beneficial effects.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
An embodiment of the present invention provides a computer storage medium, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to execute a cell handover method in any of the above method embodiments.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
Embodiments of the present invention provide, by way of embodiments of the present invention, a computer program product comprising a computer program stored on a computer storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform a cell handover method in any of the above-described method embodiments.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
Fig. 5 is a schematic structural diagram of a computing device according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computing device.
As shown in fig. 5, the computing device may include: a processor (processor)502, a Communications Interface 504, a memory 506, and a communication bus 508.
Wherein: the processor 502, communication interface 504, and memory 506 communicate with one another via a communication bus 508. A communication interface 504 for communicating with network elements of other devices, such as clients or other servers. The processor 502 is configured to execute the program 510, and may specifically execute the cell handover method in any of the above-described method embodiments.
In particular, program 510 may include program code that includes computer operating instructions.
The processor 502 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 506 for storing a program 510. The memory 506 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The embodiment of the invention acquires the MOS value in real time when the user terminal carries out VoLTE voice call, controls the mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected with the user terminal if the MOS value is smaller than a preset threshold value, so that the user terminal reports a pilot frequency measurement report, receives the pilot frequency test report, judges whether a cell level value in the pilot frequency test report is larger than or equal to the preset threshold value within preset time, and carries out pilot frequency cell switching on the user terminal if the cell level value in the pilot frequency test report is larger than or equal to the preset threshold value, so that the actual voice perception of the user can be evaluated, and the user at the voice perception edge is switched to the pilot frequency cell, thereby improving the voice quality.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.

Claims (10)

1. A method of cell handover, the method comprising:
acquiring an MOS value in real time when a user terminal carries out VoLTE voice call;
if the MOS value is smaller than a preset threshold value, controlling a Mobility Management Entity (MME) to send a pilot frequency measurement control instruction to a base station connected with the user terminal so that the user terminal reports a pilot frequency measurement report;
receiving the pilot frequency test report, and judging whether the cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time;
and if so, performing pilot frequency cell switching on the user terminal.
2. The method of claim 1, wherein the obtaining the MOS values in real-time further comprises:
and acquiring a voice data packet of the user terminal from an S1-U port of the gateway S/P-GW in real time, and calculating the MOS value according to the voice data packet.
3. The method of claim 2, wherein the inter-frequency cell handover is performed for the ue, and further comprising:
and triggering a pilot frequency switching process aiming at the user terminal so as to transfer the voice service of VoLTE voice uplink and downlink MOS diversity to a pilot frequency cell.
4. The method of claim 1, wherein before the obtaining the MOS value in real time when the user terminal performs VoLTE voice call, the method further comprises:
and judging whether the user terminal establishes the VoLTE voice call.
5. The method of claim 4, wherein the determining whether the user terminal establishes a VoLTE voice call further comprises:
and if the gateway S/P-GW sends or receives the first SIP signaling, determining that the user terminal establishes the VoLTE voice call.
6. The method of claim 4, further comprising:
and judging whether the user terminal stops VoLTE voice communication, if so, stopping acquiring the MOS value.
7. The method according to any of claims 1-6, wherein the user terminal is: and the user terminal establishes a bearer link with the base station, registers to the IMS domain, establishes the bearer of the QCI5 and simultaneously establishes the dedicated bearer of the QCI 1.
8. An apparatus for cell switching, the apparatus comprising:
the real-time acquisition module is used for acquiring an MOS value in real time when the VoLTE voice call is carried out by the user terminal;
a control module, configured to control a mobility management entity MME to send a pilot frequency measurement control instruction to a base station connected to the user terminal, so that the user terminal reports a pilot frequency measurement report, if the MOS value is smaller than a preset threshold;
the judging module is used for receiving the pilot frequency test report and judging whether the cell level value in the pilot frequency test report is greater than or equal to a preset threshold value within a preset time;
and the switching module is used for switching the pilot frequency cell to the user terminal if the pilot frequency cell is the pilot frequency cell.
9. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the cell handover method according to any one of claims 1 to 7.
10. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform a method for cell handover as claimed in any one of claims 1 to 7.
CN201911349641.7A 2019-12-24 2019-12-24 Cell switching method and device and computing equipment Pending CN113038546A (en)

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