CN110753360B

CN110753360B - Time delay optimization method and device

Info

Publication number: CN110753360B
Application number: CN201910989150.2A
Authority: CN
Inventors: 刘喜卿; 李京辉
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2022-12-02
Anticipated expiration: 2039-10-17
Also published as: CN110753360A

Abstract

A time delay optimization method and a time delay optimization device relate to the field of communication and are used for optimizing time delay of first-class services. The method comprises the following steps: acquiring first information and second information in a preset time period; determining the time delay of a core network according to the first information; determining access network time delay according to the second information, and determining abnormal time delay in the core network time delay and the access network time delay when the sum of the core network time delay and the access network time delay is greater than a first preset time delay; the abnormal time delay is optimized, and the time delay of the first type of service is effectively reduced.

Description

Time delay optimization method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for optimizing a service delay.

Background

A Voice Over Long Term Evolution (VOLTE) service is a common voice service in a Long Term Evolution (LTE) system, and can provide a high-quality voice call experience for a user.

At present, the VOLTE voice service is optimized by obtaining the time delay of the call ticket of each user in different time periods. However, the existing optimization scheme has certain limitations, and cannot quickly and accurately perform unified optimization on the time delay of the VOLTE voice service.

Disclosure of Invention

The embodiment of the invention provides a method and a device for optimizing service time delay, which are used for solving the problem that the prior art cannot quickly and accurately perform unified optimization on the time delay of VOLTE voice service.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, a method for optimizing time delay is provided, including: firstly, acquiring time information of a signaling which corresponds to a first type of service and passes through core network equipment, namely first information, and time information of a signaling which corresponds to the first type of service and passes through access network equipment, namely second information, in a preset time period; determining the time delay of the first type of service in the core network equipment, namely the time delay of the core network according to the first information; determining the time delay of the first type of service in the access network equipment, namely the access network time delay according to the second information; and when the sum of the core network delay and the access network delay is greater than a first preset delay, determining abnormal delays in the core network delay and the access network delay, and optimizing the abnormal delays.

It can be seen that, in the embodiment of the present application, by acquiring time information of a signaling, corresponding to a first type of service, passing through a core network device, that is, first information, and time information of a signaling, corresponding to the first type of service, passing through an access network device, that is, second information, in a preset time period, an abnormal time delay in a core network time delay and an access network time delay is determined according to the first information and the second information, and the abnormal time delay is optimized. The time delay optimization server can acquire the core network time delay and the access network time delay aiming at each type of service, quickly find abnormal time delays in the core network time delay and the access network time delay and then optimize the abnormal time delays, so that the time delay optimization method can quickly and accurately uniformly optimize the time delay of the service.

In a second aspect, a delay optimization apparatus is provided, including: an acquisition unit, a determination unit and a processing unit; the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring first information and second information in a preset time period; the first information comprises time information of signaling which corresponds to the first type of service and passes through the core network equipment, and the second information comprises time information of signaling which corresponds to the first type of service and passes through the access network equipment; the determining unit is used for determining the time delay of the core network according to the first information acquired by the acquiring unit, wherein the time delay of the core network is the time delay of the first type of service in the core network equipment; the determining unit is further configured to determine an access network delay according to the second information acquired by the acquiring unit, where the access network delay is a delay of the first type of service in the access network device; the determining unit is further configured to determine an abnormal time delay of the core network time delay and the access network time delay when the sum of the core network time delay and the access network time delay is greater than a first preset time delay; and the processing unit is used for optimizing the abnormal time delay determined by the determining unit.

In a third aspect, a latency optimization apparatus is provided, which includes a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the latency optimization device is running, the processor executes computer executable instructions stored in the memory to cause the latency optimization device to perform the latency optimization method of the first aspect.

The delay optimization device may be a network device, or may be a part of a device in the network device, for example, a system on chip in the network device. The chip system is configured to support the network device to implement the functions involved in the first aspect and any one of the possible implementations thereof, for example, to receive, determine, and shunt data and/or information involved in the foregoing delay optimization method. The chip system includes a chip and may also include other discrete devices or circuit structures.

In a fourth aspect, a computer storage medium is provided, which comprises computer executable instructions, which when executed on a computer, cause the computer to perform the latency optimization method of the first aspect.

In a fifth aspect, there is also provided a computer program product comprising computer instructions which, when run on a latency optimization apparatus, cause the latency optimization apparatus to perform the latency optimization method as described in the first aspect above.

It should be noted that the computer instructions may be stored in whole or in part on the first computer storage medium. The first computer storage medium may be packaged together with the processor of the latency optimization apparatus, or may be packaged separately from the processor of the latency optimization apparatus, which is not limited in this embodiment of the application.

For the description of the third, fourth and fifth aspects in this application, reference may be made to the detailed description of the first aspect; in addition, for the beneficial effects of the third aspect, the fourth aspect and the fifth aspect, reference may be made to the beneficial effect analysis of the first aspect, and details are not repeated here.

In the embodiment of the present application, the names of the delay optimization devices do not limit the devices or the functional modules themselves, and in an actual implementation, the devices or the functional modules may appear by other names. As long as the functions of the respective devices or functional modules are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalents.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

Fig. 1 is a schematic structural diagram of a delay optimization system according to an embodiment of the present application;

fig. 2 is a schematic hardware structure diagram of a communication device according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of another hardware structure of a communication device according to an embodiment of the present disclosure;

fig. 4 is a schematic flowchart of a delay optimization method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a delay optimization apparatus according to an embodiment of the present application.

Detailed Description

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

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

For the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first" and "second" are used to distinguish the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the terms "first" and "second" are not used to limit the quantity and execution order.

The VOLTE voice service is a common voice service in an LTE system, and can provide high-quality voice call experience for users. However, due to network environment problems or other reasons, the VOLTE voice service is usually affected by time delay, which results in a problem of poor experience. The existing scheme for optimizing VOLTE voice service time delay is as follows: and optimizing the VOLTE voice service by acquiring the time delay of the ticket of each user in different time periods. However, the existing optimization scheme has certain limitations, and cannot quickly and accurately perform unified optimization on the time delay of the VOLTE voice service.

In view of the above problems, an embodiment of the present application provides a time delay optimization method, where a time delay optimization device determines a core network time delay and an access network time delay of a first type of service in a preset time period, and then determines an abnormal time delay according to the core network time delay and the access network time delay, so as to optimize the abnormal time delay. The first type of service is any type of service, so that for each type of service, the delay optimization server can acquire not only the core network delay but also the access network delay, quickly discover the core network delay and the abnormal delay in the access network delay, and then optimize the abnormal delay. Therefore, the method and the device can quickly and accurately carry out unified optimization on the time delay of the service.

The time delay optimization method is suitable for a time delay optimization system. Fig. 1 shows one configuration of the latency optimization system 100. As shown in fig. 1, the delay optimization system 100 includes: a terminal 101, a terminal 102, an access network device 103, a core network device 104 and a delay optimization server 105. The access network device 103 is in communication connection with the terminal 101, the terminal 102, the core network device 104 and the delay optimization server 105, and the core network device 104 is in communication connection with the delay optimization server 105.

In practical applications, the access network device 103 may be connected to a plurality of terminals, and the delay optimization server 105 may be connected to a plurality of access network devices. Fig. 1 illustrates an example in which the delay optimization server 105 is connected to one access network device 103, and the access network device 103 is connected to two

terminals

101 or 102.

The terminal 101, the terminal 102 and the access network device 103 may establish a connection through a network of any system. Such as: a fifth generation (5th generation, 5G) network, a fourth generation (4th generation, 5G) network, and the like.

The

terminals

101 and 102 in fig. 1 are used to provide voice and/or data connectivity services to a user. The terminals may have different names, for example: user Equipment (UE), access terminal, terminal unit, terminal station, mobile station, remote terminal, mobile device, wireless communication device, vehicular user equipment, terminal agent, or terminal device, etc. Optionally, the terminal may be various handheld devices, vehicle-mounted devices, wearable devices, and computers with communication functions, which is not limited in this embodiment of the present application. For example, the handheld device may be a smartphone. The in-vehicle device may be an in-vehicle navigation system. The wearable device may be a smart bracelet. The computer may be a Personal Digital Assistant (PDA) computer, a tablet computer, and a laptop computer.

In the embodiment of the present application, the terminal 101 is taken as an example of a calling terminal, and the terminal 102 is taken as an example of a called terminal, so that the embodiment of the present application is described.

The access network equipment 103 in fig. 1 may be a base station or base station controller or the like for wireless communications. In this embodiment, the base station may be a base station (BTS) in a global system for mobile communication (GSM), a base station (BTS) in Code Division Multiple Access (CDMA), a base station (node B) in Wideband Code Division Multiple Access (WCDMA), an evolved base station (evolved node B, eNB or e-NodeB) in LTE, an internet of things (IoT) or an internet of narrow-band (NB-IoT) network, a future 5G mobile communication network or a base station in a future evolved Public Land Mobile Network (PLMN), which is not limited in this embodiment.

The delay optimization server 105 in fig. 1 may be one server in a server cluster (composed of a plurality of servers), a chip in the server, a system on chip in the server, or a Virtual Machine (VM) deployed on a physical machine, which is not limited in this embodiment of the present invention.

The basic hardware structures of the terminal 101, the terminal 102, the access network device 103, the core network device 104, and the delay optimization server 105 in the delay optimization system 100 are similar and all include elements included in the communication apparatus shown in fig. 2 or fig. 3. The hardware structures of the terminal 101, the terminal 102, the access network device 103, the core network device 104, and the delay optimization server 105 will be described below by taking the communication apparatus shown in fig. 2 and 3 as an example.

Fig. 2 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present disclosure. The communication device comprises a processor 21, a memory 22, a communication interface 23, a bus 24. The processor 21, the memory 22 and the communication interface 23 may be connected by a bus 24.

The processor 21 is a control center of the communication apparatus, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 21 may be a Central Processing Unit (CPU), other general-purpose processors, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 21 may include one or more CPUs, such as CPU 0 and CPU 1 shown in FIG. 2.

The memory 22 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In a possible implementation, the memory 22 may exist separately from the processor 21, and the memory 22 may be connected to the processor 21 via a bus 24 for storing instructions or program code. The processor 21, when calling and executing instructions or program code stored in the memory 22, is able to implement the latency optimization method provided by the following embodiments of the present invention.

In the embodiment of the present application, the terminal 101, the terminal 102, the access network device 103, the core network device 104, and the delay optimization server 105 are different in software programs stored in the memory 22, so that the functions implemented by the terminal 101, the terminal 102, the access network device 103, the core network device 104, and the delay optimization server 105 are different. The functions performed by the devices will be described in conjunction with the following flow charts.

In another possible implementation, the memory 22 may also be integrated with the processor 21.

The communication interface 23 is used for connecting the communication device with other devices through a communication network, which may be an ethernet, a radio access network, a Wireless Local Area Network (WLAN), or the like. The communication interface 23 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

The bus 24 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but that does not indicate only one bus or one type of bus.

It is noted that the configuration shown in fig. 2 does not constitute a limitation of the communication device, which may comprise more or less components than shown in fig. 2, or a combination of certain components, or a different arrangement of components, in addition to the components shown in fig. 2.

Fig. 3 shows another hardware configuration of the communication apparatus in the embodiment of the present invention. As shown in fig. 3, the communication device may include a processor 31 and a communication interface 32. The processor 31 is coupled to a communication interface 32.

The function of the processor 31 can refer to the description of the processor 21 above. The processor 31 also has a memory function and can function as the memory 22.

The communication interface 32 is used to provide data to the processor 31. The communication interface 32 may be an internal interface of the communication device, or may be an external interface (corresponding to the communication interface 23) of the communication device.

It is noted that the configuration shown in fig. 2 (or fig. 3) does not constitute a limitation of the communication apparatus, which may include more or less components than those shown in fig. 2 (or fig. 3), or combine some components, or a different arrangement of components, in addition to the components shown in fig. 2 (or fig. 3).

The delay optimization server 105 shown in fig. 1 may optimize the delay of a certain type of traffic between the

terminals

101 and 102. The service may be a VOLTE voice service, a video service, or other types of services, which is not limited in this embodiment of the present application.

The following describes the delay optimization method provided in the embodiments of the present application in detail with reference to the accompanying drawings.

For convenience of description, in the embodiment of the present application, a VOLTE voice service is executed between the terminal 101 and the terminal 102 in fig. 1, and the delay optimization server 105 detects whether the VOLTE voice service has an abnormal delay, and performs optimization processing on the abnormal delay.

Fig. 4 is a schematic flowchart of a delay optimization method according to an embodiment of the present application. As shown in fig. 4, a method for optimizing a delay provided in the embodiment of the present application includes: S401-S407.

S401, the time delay optimization server 105 obtains the first information and the second information in the preset time period.

Radio environment problems or other reasons may increase the latency of VOLTE voice traffic. In order to reduce the impact of the delay on the VOLTE voice service, it needs to first determine: when the terminal 101 and the terminal 102 are performing VOLTE voice service, whether an abnormal time delay occurs or not is determined.

Specifically, when detecting whether an abnormality occurs in the VOLTE voice service, the delay optimization server 105 first obtains the first information and the second information within a preset time period.

Wherein the first information includes time information of signaling via the core network device 104 corresponding to the VOLTE voice service. The second information includes time information of signaling via the access network device 103 corresponding to the VOLTE voice service.

When performing VOLTE voice service communication between the terminal 101 and the terminal 102, the delay optimization server 105 may obtain first information, such as information of an internet protocol multimedia subsystem (IMS) domain structured event, in the core network device 104 corresponding to the communication network. The delay optimization server 105 may further obtain second information, such as information of a wireless side call, in the access network device 103 corresponding to the communication network.

The information of the IMS domain structured event is composed of time information of signaling of multiple interfaces, such as the Mw interface, the Mj interface, the ISC interface, the Cx interface, and the Rx interface, in the core network device 104, and is relatively original information capable of comprehensively and objectively reflecting the experience of the terminal 101 and the terminal 102 in the VOLTE voice service process. The time delay optimization server 105 obtains the time information of the signaling of the plurality of interfaces at the core network device 104, so as to determine the information of the IMS domain structured event.

The information of the wireless side call is composed of the time information of the LTE-Uu interface signaling on the access network equipment 103. The LTE-Uu interface, also referred to as an air interface or radio interface, is an interface between the terminal 101 or the terminal 102 and an evolved terrestrial radio access network (E-UTRA), or an interface of a New Radio (NR) radio access between the terminal 101 or the terminal 102 and an evolved base station (eNB or E-NodeB) in LTE. The time delay optimization server 105 determines the information of the wireless side call by acquiring the time information of the LTE-Uu interface signaling at the access network device 103.

The delay optimization server 105 may obtain the first information and the second information at the core network device 104 and the access network device 103 at the same time, or first obtain the first information in the core network device 104, then obtain the second information in the access network device 103, or first obtain the second information in the access network device 103, and then obtain the first information in the core network device 104, which is not limited in this embodiment of the present application.

It should be noted that, in the embodiment of the present application, it is considered that "the delay optimization server 105 acquires the first information" and "the core network device 104 acquires the signaling" are performed synchronously, and there is no delay between the two. Similarly, in the embodiment of the present application, the "obtaining of the second information by the delay optimization server 105" and the "obtaining of the signaling by the access network device 103" are considered to be performed synchronously, and no delay exists between the two.

Optionally, after obtaining the time information of the signaling through the core network device 104, the delay optimization server 105 may further filter and eliminate invalid data (e.g., data with incomplete fields and data with a problem in logic), only retain the remaining valid data, and use the valid data as the first information.

Optionally, after obtaining the time information of the signaling via the access network device 103, the delay optimization server 105 may further screen and remove invalid data (e.g., data with incomplete fields and data with a problem in logic), only retain the remaining valid data, and use the valid data as the second information.

Optionally, the delay optimization server 105 may optimize VOLTE voice traffic between the terminal 101 and the terminal 102 in a certain city or a certain area in the city.

S402, the time delay optimization server 105 determines the time delay of the core network according to the first information.

The core network delay is a delay of the VOLTE voice service in the core network device 104.

Optionally, as shown in table 1, the delay optimization server 105 may use a data analysis tool to analyze the start signaling and the end signaling in the first information, and determine the core network delay. Among other things, the latency optimization server 105 may analyze the first information using the following data analysis tools, for example: structured Query Language (SQL), statistical Analysis System (SAS), or Statistical Product and Service Solutions (SPSS), among others.

The core network delay determined by the delay optimization server 105 includes: at least one of a caller bearer setup delay, a callee radio setup delay, a caller call control delay, an IMS addressing delay, a callee call control delay, a 183 message forwarding delay, a ring alert message forwarding delay, a caller receive update (update) message delay, an update (update) message forwarding delay, or a callee delivery update (update) message delay. The 183 message is a session progress message, and the ringing prompt message may specifically be: 180ring message.

The calling bearer setup delay is a difference value between the time information of the first start signaling and the time information of the first termination signaling. The first start signaling is: the invite message is signaled by a Session Border Controller (SBC). The first terminating signaling is as follows: the invite message is received by a serving-call session control function (S-CSCF).

The calling call control time delay is the difference value of the time information of the second starting signaling and the time information of the second ending signaling. The second start signaling is: and the calling S-CSCF receives the signaling of the invite message. The second terminating signaling is: the calling S-CSCF receives the invite message from the last Telephony Application Server (TAS).

For the specific start signaling and end signaling of other core network delays, reference may be made to the contents in table 1.

TABLE 1

For a VOLTE voice service, the delay optimization server 105 may determine the core network delay according to the first information in the VOLTE voice service by using a data analysis tool. And within a preset time period, a plurality of VOLTE voice services may exist. Therefore, in this case, the delay optimization server 105 first obtains the number of VOLTE voice services within a preset time period; then, acquiring first information of each VOLTE voice service in a preset time period; then, according to the number of the VOLTE voice services and the sum of the first information of each VOLTE voice service, the average delay of the VOLTE voice services in the core network device 104 is determined, and the average delay is the core network delay.

Illustratively, the delay optimization server 105 acquires 5 VOLTE voice services within 1 minute, and the first information of each VOLTE voice service is: 8 seconds, 10 seconds, 12 seconds, 14 seconds, 16 seconds; then the delay optimization server 105 calculates (8 +10+14+ 16)/5 =12, and determines that the core network delay is 12 seconds.

And S403, the time delay optimization server 105 determines the access network time delay according to the second information.

The access network delay is a delay of the VOLTE voice service in the access network device 103.

Optionally, the determining, by the delay optimization server 105, the access network delay according to the second information includes: an initial Radio Resource Control (RRC) establishes a time delay. The access network delay and the core network delay acquisition mode are consistent, and are not described herein again.

S404, the delay optimization server 105 determines whether the sum of the core network delay and the access network delay is greater than a first preset delay.

The delay optimization server 105 determines the overall delay between the terminal 101 and the terminal 102 according to the sum of the core network delay and the access network delay, and determines whether the overall delay is greater than a first preset delay.

In practical application, the normal time delay of the overall time delay of the VOLTE voice service between the terminal 101 and the terminal 102 is 3.5 seconds. If the overall delay is greater than the first predetermined delay, for example: if the normal delay is 1.5 times, that is, the overall delay is greater than 5.25 seconds, the delay optimization server 105 determines that the overall delay of the VOLTE voice service between the terminal 101 and the terminal 102 is abnormal.

If the delay optimization server 105 determines that the sum of the core network delay and the access network delay is greater than the first preset delay, S405 and S406 are executed; if the delay optimization server 105 determines that the sum of the core network delay and the access network delay is less than or equal to the first preset delay, the delay optimization server 105 obtains the first information and the second information of the next preset time period, and re-executes S402-S407.

S405, the delay optimization server 105 determines whether the core network delay is greater than a second preset delay.

As can be seen from the above description, the embodiments of the present application include multiple core network latencies. Each of the plurality of core network delays corresponds to a second preset delay. The delay optimization server 105 determines whether each of the plurality of core network delays is greater than a second preset delay corresponding to the core network delay.

Illustratively, table 2 shows second preset delays corresponding to the core network delays in table 1.

TABLE 2

If the delay optimization server 105 determines that at least one of the plurality of core network delays is greater than a second preset delay corresponding to the core network delay, determining that the abnormal delay includes the core network delay, and executing S407; if the delay optimization server 105 determines that the core network delay is less than or equal to the second preset delay, it is determined that the abnormal delay does not include the core network delay, and S404 is executed.

S406, the delay optimization server 105 determines whether the access network delay is greater than a third preset delay.

The access network delay is the initial wireless side RRC establishment delay, and in practical application, the normal delay of the initial wireless side RRC establishment delay is 100 milliseconds, and the third preset delay is 1.5 times of the normal delay, that is, the third preset delay is 150 milliseconds.

If the delay optimization server 105 determines that the access network delay is greater than the third preset delay, determining that the abnormal delay includes the access network delay, and executing S407; if the delay optimization server 105 determines that the access network delay is less than or equal to the third preset delay, it is determined that the abnormal delay does not include the access network delay, and S404 is executed.

S407, the time delay optimization server 105 sends an optimization strategy to the target device according to the abnormal time delay.

The target device includes at least one of the core network device 104 and the access network device 103, and the target device is a device including an abnormal time delay.

In practical application, referring to the core network delay in table 1, as shown in table 3, an optimization strategy for performing optimization processing on the abnormal delay including the core network delay is provided. The delay optimization server 105 prestores an abnormal delay and an optimization strategy for optimizing the abnormal delay, and the delay optimization server 105 may send the optimization strategy to the target device according to the abnormal delay, so that the target device is optimized according to the optimization strategy.

TABLE 3

Optionally, when the abnormal delay is a delay for establishing a calling bearer or a delay for establishing a bearer by a called, the delay for establishing a bearer is optimized.

Specifically, when performing VOLTE voice service, the state of the terminal 101 or the terminal 102 is divided into an active state and an idle state. The idle state is used to indicate that the terminal 101 or the terminal 102 establishes only the RRC bearer. The active state is used to indicate that the terminal 101 or the terminal 102 not only establishes the RRC bearer but also has traffic transmission on the core network device 104. When the terminal 101 in the active state initiates the VOLTE voice Service, it is described that the VOLTE voice Service bearer combination (SRB 1+ SRB2+2 xAM) of the terminal 101 has been established in advance, and only the dedicated bearer of the Quality of Service Identifier (Quality of Service Class Identifier 1, QCI) 1 needs to be established, that is, 1 QCI2 dedicated bearer is established for the VOLTE video Service, so that the time delay for establishing radio resource bearers (SRBs) and default bearers (QCI 6 and QCI 5) is omitted, and the paging process of the called party is omitted. Therefore, the delay optimization server 105 may issue a policy for performing optimization processing on the bearer establishment delay to the core network device 104, so that the core network device 104 appropriately increases the duration of the terminal 101 or the terminal 102 in the active state by reasonably setting the terminal 101 or the terminal 102 in the active state timer, so as to shorten the bearer establishment delay.

Optionally, when the abnormal delay is at least one of a calling call control delay, an IMS addressing delay, a called call control delay, a 183 forwarding delay, or a Ring forwarding delay, the SIP signaling interaction delay is optimized.

Specifically, in the core network device 104, there are many IMS network element modules. If the SIP signaling interaction delay is abnormal in the VOLTE voice service establishing process, the signaling needs to be captured and analyzed in an IMS network element, and an IMS abnormal network element module is positioned. If the Domain Name System (DNS) caching capability configured by the IMS network element is not configured sufficiently, the network element addressing efficiency of an Application Server (AS) is affected, the DNS query delay is increased, and the SIP signaling interaction delay is lengthened. In order to solve the above problem, the delay optimization server 105 issues a policy for optimizing the SIP signaling interaction delay to the core network device 104. The core network device 104 may perform link caching for a preset time (e.g., 100 ms) on a small packet message smaller than a preset byte (e.g., 1500 bytes) according to a policy for optimizing the SIP signaling interaction delay, and then uniformly package and send the small packet message, thereby reducing the number of interaction messages and reducing the SIP signaling interaction delay. The core network device 104 may also reduce the preset time for link caching (for example, to 10 ms) according to a policy for optimizing the SIP signaling interaction delay, so as to reduce the SIP signaling interaction delay.

Optionally, when the abnormal delay is a delay when the called party is established wirelessly, the call establishment delay and the paging delay are optimized simultaneously.

Call setup delay may be caused by radio environment problems. The wireless environment problem may be caused by two reasons:

in the first aspect, the wireless signal strength of the terminal 101 or the terminal 102 in the area is poor.

In a second aspect, the terminal 101 or the terminal 102 is highly interfered by radio signals of other access network devices 103 in the area.

For the above reasons, the delay optimization server 105 may issue a policy for optimizing the call setup delay to the access network device 103, and the access network device 103 performs optimization processing according to the policy for optimizing the call setup delay, thereby reducing the call setup delay. The method specifically comprises the following steps:

the access network device 103 can reduce the probability that the network cannot normally receive the preamble information of the terminal 101 or the terminal 102 by adjusting the initial power, and prevent the call setup delay from being lengthened.

The access network device 103 may also set a timer T300 to optimize the call setup delay. Specifically, after the terminal 101 sends the RRC request setup message, the terminal 101 starts a timer T300, and if the RRC setup connection message of the Radio Network Controller (RNC) is not received, so that the timer T300 is overtime, the terminal 101 retransmits the RRC request setup message. Therefore, the access network device 103 sets the timer T300 to prevent the terminal 101 from waiting for the RRC connection setup message of the RNC for a long time, and thus, the call setup delay is lengthened.

The access network device 103 may also adjust a load balancing policy between carriers to optimize call setup delay. Specifically, the access network device 103 first checks the load balancing policy among the carriers, and if the load policy among the carriers is improperly set, the access network device 103 may repeatedly perform load balancing, thereby causing a delay in call setup to be lengthened. Therefore, the access network device 103 may adjust the load balancing policy among the carriers to optimize the call setup delay.

The access network device 103 may also open the pre-scheduling of QCI5 to accelerate signaling scheduling of air interfaces, so as to optimize call setup delay. QCI5 is a signaling bearer used in voice over VOLTE services. The access network device 103 may adjust the QCI5 Discontinuous Reception (DRX) sleep period time, so as to avoid that the scheduling delay of the SIP message is lengthened due to the longer QCI5 DRX sleep period time, thereby lengthening the call setup delay.

The paging delay is time information when the core network device 104 initiates paging to the terminal 102 when the terminal 102 is in an idle state. Paging policy setting of a Mobility Management Entity (MME) network element in the core network device 104 and paging parameters of the access network device 103 may affect the paging delay. Therefore, the delay optimization server 105 may send a policy for optimizing the paging delay to the access network device 103 and the core network device 104, so that the access network device 103 and the core network device 104 perform optimization processing according to the policy for optimizing the paging delay sent by the delay optimization server 105.

The method specifically comprises the following steps:

the access network device 103 may modify its paging cycle (e.g., modify the original 1280ms paging cycle to 640ms paging cycle) to reduce the paging delay.

The core network device 104 may modify the paging latency in the MME network element (e.g., modify the original paging latency of 4s to the paging latency of 2 s) to reduce the paging latency.

The core network device 104 may also increase the first paging range in the MME network element to improve the success rate of the first paging, and prevent the paging delay from being lengthened due to the paging failure.

The core network device 104 may also query whether all network systems are pre-stored in a Home Subscriber Server (HSS) network element, so as to prevent the HSS network element from not storing a current network where a called party is located, and performing called domain selection (T-ADS) for each call, thereby prolonging the paging delay. Specifically, when the core network device 104 does not know which network system the terminal 102 is in, the core network device may select to send query messages to the core networks in various network systems through the T-ADS domain to query the network conditions where the terminal 102 is currently located, so that the called paging delay is correspondingly increased. Therefore, all network types are pre-stored by the HSS network element, and the paging time delay can be effectively reduced.

The core network device 104 may also control a Serving GateWay (SGW) network element to start a data caching function, so as to reduce paging delay. When the terminal 102 is in an idle state, if the SGW network element does not cache the message, the terminal 102 cannot send the SIP request even when paging is successful, and the SGW network element needs to wait for the IMS retransmission request (interval 0.5s/1s/2 s), and then sends the request to the access network device 103, so that the paging delay is lengthened. Therefore, the core network device 104 may control the SGW network element to start a data caching function, thereby reducing the paging delay.

Optionally, when the abnormal time delay is the time delay when the calling party is wirelessly established, the call establishment time delay is optimized. Call setup delay is specifically referred to above.

Optionally, when the abnormal delay is at least one of a calling UPDATE delay, an UPDATE forwarding delay, or a called UPDATE delay, the negotiation delay of the coding and decoding rate and the interaction delay of the SIP signaling are optimized simultaneously. The SIP signaling interaction delay is specifically referred to the above description.

Specifically, in order to optimize the codec rate negotiation delay, the delay optimization server 105 may issue a policy for optimizing the codec rate negotiation delay to the core network device 104, so that the core network device 104 performs optimization processing according to the policy for optimizing the paging delay issued by the delay optimization server 105. The method specifically comprises the following steps: the core network device 104 may set a codec set in a unified manner for each network element related to negotiation, so as to reduce the codec rate negotiation delay. The core network device 104 may also increase the bandwidth on the SBC, accelerate negotiation of the codec rate, and reduce the codec rate negotiation delay.

Optionally, when the abnormal delay is the initial wireless-side RRC setup delay, the call setup delay is optimized. Call setup delay is described with particular reference to the above description.

In the embodiment of the present application, the delay optimization server 105 determines an abnormal delay in the core network delay and the access network delay according to the first information and the second information by acquiring time information of a signaling, which corresponds to the first type of service and passes through the core network device 104, that is, first information, and time information of a signaling, which corresponds to the first type of service and passes through the access network device 103, that is, second information, within a preset time period, and performs optimization processing on the abnormal delay. For each type of service, the delay optimization server 105 can acquire not only the core network delay but also the access network delay, quickly find the abnormal delays in the core network delay and the access network delay, and then optimize the abnormal delays, so that the service delay can be quickly and accurately optimized in a unified manner.

The scheme provided by the embodiment of the application is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the delay optimization server 105 may be divided into functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and another division manner may be provided in actual implementation.

Fig. 5 is a schematic structural diagram of a delay optimization apparatus provided in an embodiment of the present application. The delay optimization apparatus may be configured to perform the delay optimization method shown in fig. 4. The delay optimization apparatus shown in fig. 5 includes: an acquisition unit 501, a determination unit 502 and a processing unit 503;

an obtaining unit 501, configured to obtain first information and second information within a preset time period; the first information comprises time information of signaling which corresponds to the first type of service and passes through the core network equipment, and the second information comprises time information of signaling which corresponds to the first type of service and passes through the access network equipment;

a determining unit 502, configured to determine a core network delay according to the first information acquired by the acquiring unit 501, where the core network delay is a delay of the first type of service in a core network device;

the determining unit 502 is further configured to determine an access network delay according to the second information acquired by the acquiring unit 501, where the access network delay is a delay of the first type of service in the access network device;

the determining unit 502 is further configured to determine an abnormal time delay of the core network time delay and the access network time delay when a sum of the core network time delay and the access network time delay is greater than a first preset time delay;

the processing unit 503 is configured to perform optimization processing on the abnormal time delay determined by the determining unit 502.

Optionally, the determining unit 502 is specifically configured to:

judging whether the time delay of the core network is greater than a second preset time delay or not and whether the time delay of the access network is greater than a third preset time delay or not;

if the core network time delay is greater than the second preset time delay, determining that the abnormal time delay comprises the core network time delay;

and if the access network delay is greater than the third preset delay, determining that the abnormal delay comprises the access network delay.

Optionally, the first type of service is a voice service, and the core network delay includes: at least one of bearer establishment delay, called wireless establishment delay, calling wireless establishment delay, first delay or second delay, wherein the first delay comprises: at least one of a calling call control delay, an internet protocol multimedia subsystem (IMS) addressing delay, a called call control delay, a session progress message forwarding delay or a ringing prompt message forwarding delay, wherein the second delay comprises: at least one of the time delay of the successful message of the resource reservation received by the calling party, the time delay of the forwarding of the successful message of the resource reservation or the time delay of the successful message of the resource reservation issued by the called party; the access network delay comprises the following steps: the method comprises the steps that time delay is established in the RRC (radio resource control) of an initial wireless side;

the processing unit 503 is specifically configured to:

when the abnormal time delay is the time delay when the load is established, optimizing the time delay when the load is established;

when the abnormal time delay is the time delay of called wireless establishment, optimizing the call establishment time delay and the paging time delay simultaneously;

when the abnormal time delay is calling wireless establishment time delay or initial wireless side RRC establishment time delay, optimizing the call establishment time delay;

when the abnormal time delay is the first time delay, optimizing the interactive time delay of the SIP signaling;

and when the abnormal time delay is the second time delay, optimizing the encoding and decoding rate negotiation time delay and the SIP signaling interaction time delay at the same time.

Optionally, the determining unit 502 is specifically configured to:

determining the number of first-class services in a preset time period;

acquiring first information of each service in a first type of service in a preset time period;

determining the average time delay of the first type of service in the core network equipment according to the number of the first type of service and the first information of each service in the first type of service; the average time delay of the first type of service in the core network device is the core network time delay.

Optionally, the determining unit 502 is specifically configured to:

determining the number of first type services in a preset time period;

acquiring second information of each service in the first type of service within a preset time period;

determining the average time delay of the first type of service in the access network equipment according to the number of the first type of service and the second information of each service in the first type of service; the average time delay of the first type of service in the access network equipment is the access network time delay.

Embodiments of the present application further provide a computer storage medium, where the computer storage medium includes computer execution instructions, and when the computer execution instructions run on a computer, the computer is enabled to execute the time delay optimization method provided in the foregoing embodiments.

The embodiment of the present application further provides a computer program, where the computer program may be directly loaded into the memory and contains a software code, and the computer program is loaded and executed by a computer, so as to implement the time delay optimization method provided by the foregoing embodiment.

Those skilled in the art will recognize that the functionality described in this disclosure may be implemented in hardware, software, firmware, or any combination thereof, in one or more of the examples described above. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated into one processing unit 503, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented as a software functional unit and sold or used as a separate product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media capable of storing program codes.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for optimizing time delay, comprising:

acquiring first information and second information in a preset time period; the first information comprises time information of signaling which corresponds to the first type of service and passes through core network equipment, and the second information comprises time information of signaling which corresponds to the first type of service and passes through access network equipment;

determining a core network time delay according to the first information, wherein the core network time delay is the time delay of the first type of service in the core network equipment;

determining access network time delay according to the second information, wherein the access network time delay is the time delay of the first type of service in the access network equipment;

when the sum of the core network delay and the access network delay is greater than a first preset delay, determining an abnormal delay in the core network delay and the access network delay;

optimizing the abnormal time delay;

the first type of service is a voice service, and the core network delay includes: at least one of a bearer establishment delay, a called wireless establishment delay, a calling wireless establishment delay, a first delay or a second delay, wherein the first delay comprises: at least one of a calling call control delay, an internet protocol multimedia subsystem (IMS) addressing delay, a called call control delay, a session progress message forwarding delay or a ringing prompt message forwarding delay, wherein the second delay comprises: at least one of the time delay of the successful message of the resource reservation received by the calling party, the time delay of the forwarding of the successful message of the resource reservation or the time delay of the successful message of the resource reservation issued by the called party; the access network delay comprises: the method comprises the steps that initial wireless side Radio Resource Control (RRC) is established for time delay;

the optimizing the abnormal time delay includes:

the optimization processing of the bearer establishment delay comprises the following steps: sending a policy for optimizing the bearer establishment delay to the core network device, so that the core network device increases the time length of the calling terminal or the called terminal in an activated state by setting an activated state timer of the calling terminal or the called terminal;

when the abnormal time delay is the time delay of the called party during wireless establishment, optimizing the call establishment time delay and the paging time delay simultaneously;

the optimizing the call setup delay comprises: sending a strategy for optimizing the call setup delay to the access network equipment, so that the access network equipment reduces the probability that the access network equipment cannot receive the leading information of the calling terminal or the called terminal by adjusting the initial power; or, sending a policy for performing optimization processing on the call setup delay to the access network device, so that the access network device reduces the receiving duration of the calling terminal receiving the RRC connection setup message of the radio network controller by setting a timer T300; or, sending a policy for performing optimization processing on the call setup delay to the access network device, so that the access network device adjusts load balancing between carriers; or, sending a policy for optimizing the call setup delay to the access network device, so that the access network device opens pre-scheduling of QCI5, and reduces the time of the QCI5 in the discontinuous reception sleep period;

the optimizing the paging delay comprises: sending a strategy for optimizing the paging delay to the access network equipment so that the access network equipment reduces the paging cycle of the access network equipment; or, sending a policy for optimizing the paging delay to the core network device, so that the core network device reduces the paging waiting delay of the core network device; or sending a strategy for optimizing the paging delay to the core network equipment, so that the core network equipment increases the first paging range in a mobile management node (MME) network element; or, sending a policy for optimizing the paging delay to the core network device, so that a home subscriber server HSS in the core network device obtains multiple network systems in advance; or, sending a policy for optimizing the paging delay to the core network device, so that the core network device controls a serving gateway SGW to start a data caching function;

when the abnormal time delay is the calling wireless establishment time delay or the initial wireless side RRC establishment time delay, optimizing the call establishment time delay;

when the abnormal time delay is the first time delay, optimizing the interactive time delay of the Session Initiation Protocol (SIP) signaling;

the optimizing the SIP signaling interaction time delay comprises the following steps: sending a strategy for optimizing the SIP signaling interaction delay to the core network equipment, so that the core network equipment performs link caching for a preset time on packet messages smaller than a preset byte, and uniformly packaging and sending the packet messages;

when the abnormal time delay is the second time delay, optimizing the negotiation time delay of the coding and decoding rate and the interaction time delay of the SIP signaling at the same time;

the optimization processing of the coding and decoding rate negotiation time delay comprises the following steps: sending a strategy for optimizing the codec rate negotiation delay to the core network device, so that the core network device uniformly sets a codec set for each network element involved in negotiation of the core network device; or, sending a policy for performing optimization processing on the codec rate negotiation delay to the core network device, so that the core network device increases the bandwidth on the calling party session border controller SBC.

2. The method of claim 1, wherein the determining the abnormal delay between the core network delay and the access network delay comprises:

3. The method according to claim 1, wherein the determining a core network delay according to the first information comprises:

determining the number of the first type of services in the preset time period;

acquiring first information of each service in the first type of service in the preset time period;

determining the average time delay of the first type of service in the core network equipment according to the number of the first type of service and the first information of each service in the first type of service; and the average time delay of the first type of service in the core network equipment is the time delay of the core network.

4. The method of claim 1, wherein the determining the access network delay according to the second information comprises:

determining the number of the first type of services in the preset time period;

acquiring second information of each service in the first type of service in the preset time period;

determining the average time delay of the first type of service in the access network equipment according to the number of the first type of service and the second information of each service in the first type of service; and the average time delay of the first type of service in the access network equipment is the access network time delay.

5. A delay optimization apparatus, comprising: an acquisition unit, a determination unit and a processing unit;

the acquisition unit is used for acquiring first information and second information within a preset time period; the first information comprises time information of signaling which corresponds to the first type of service and passes through core network equipment, and the second information comprises time information of signaling which corresponds to the first type of service and passes through access network equipment;

the determining unit is configured to determine a core network delay according to the first information acquired by the acquiring unit, where the core network delay is a delay of the first type of service in the core network device;

the determining unit is further configured to determine an access network delay according to the second information acquired by the acquiring unit, where the access network delay is a delay of the first type of service in the access network device;

the determining unit is further configured to determine an abnormal time delay between the core network time delay and the access network time delay when a sum of the core network time delay and the access network time delay is greater than a first preset time delay;

the processing unit is configured to perform optimization processing on the abnormal time delay determined by the determining unit;

the first type of service is a voice service, and the core network delay includes: at least one of a bearer establishment delay, a called wireless establishment delay, a calling wireless establishment delay, a first delay or a second delay, wherein the first delay comprises: at least one of a calling call control delay, an internet protocol multimedia subsystem (IMS) addressing delay, a called call control delay, a session progress message forwarding delay or a ringing prompt message forwarding delay, wherein the second delay comprises: at least one of the time delay of the successful message of the resource reservation received by the calling party, the time delay of the successful message forwarding of the resource reservation or the time delay of the successful message of the resource reservation issued by the called party; the access network delay comprises: the method comprises the steps that initial wireless side Radio Resource Control (RRC) is established for time delay;

the processing unit is specifically configured to:

the optimizing the call setup delay comprises: sending a strategy for optimizing the call setup delay to the access network equipment, so that the access network equipment reduces the probability that the access network equipment cannot receive the leading information of the calling terminal or the called terminal by adjusting the initial power; or, sending a policy for optimizing the call setup delay to the access network device, so that the access network device reduces the receiving duration of the RRC connection setup message of the radio network controller received by the calling terminal by setting a timer T300; or, sending a policy for optimizing the call setup delay to the access network device, so that the access network device adjusts load balancing among carriers; or, sending a policy for optimizing the call setup delay to the access network device, so that the access network device opens pre-scheduling of QCI5, and reduces the time of a discontinuous reception sleep period of QCI 5;

when the abnormal time delay is the second time delay, optimizing the encoding and decoding rate negotiation time delay and the SIP signaling interaction time delay simultaneously;

the optimizing the codec rate negotiation delay comprises: sending a policy for optimizing the codec rate negotiation delay to the core network device, so that the core network device uniformly sets a codec set for each network element related to negotiation of the core network device; or, sending a policy for performing optimization processing on the codec rate negotiation delay to the core network device, so that the core network device increases the bandwidth on the calling session border controller SBC.

6. The latency optimization apparatus of claim 5, wherein the determining unit is specifically configured to:

judging whether the core network time delay is greater than a second preset time delay or not and whether the access network time delay is greater than a third preset time delay or not;

and if the access network time delay is greater than the third preset time delay, determining that the abnormal time delay comprises the access network time delay.

7. The latency optimization device of claim 5, wherein the determining unit is specifically configured to:

determining the number of the first type of service in the preset time period;

8. The latency optimization apparatus of claim 5, wherein the determining unit is specifically configured to:

determining the number of the first type of service in the preset time period;

9. A latency optimization apparatus comprising a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; the computer-executable instructions stored by the memory are executable by the processor when the latency optimization apparatus is running to cause the latency optimization apparatus to perform the latency optimization method of any one of claims 1-4.

10. A computer storage medium comprising computer executable instructions which, when executed on a computer, cause the computer to perform the latency optimization method of any one of claims 1 to 4.