CN102647733B - Dynamic adjusting method of PS (Packet Switch) permanent timer and RNC (Radio Network Controller) - Google Patents

Abstract

The invention provides a dynamic adjustment method of a PS permanent timer and an RNC. The method includes: the RNC monitors the established PS service of the user terminal; the RNC judges the type of the PS service before the built-in PS permanent timer starts timing; adjusts the PS permanent timing according to the judged type The delay parameter of the device. The present invention adaptively adjusts the delay parameter of the PS permanent timer by judging the type of the PS service, so that the RNC can release resources at a more reasonable time, thereby avoiding a large amount of signaling overhead caused by the frequent establishment and release of the PS service, Improved utilization of network resources.

Description

Dynamic adjustment method of PS permanent timer and RNC

technical field

The invention relates to a dynamic adjustment method of a PS permanent timer and an RNC, and belongs to the technical field of radio resource management.

Background technique

The limitation of wireless resources and the increasing demand make it necessary for the network side to adopt a reasonable wireless resource management strategy to ensure the on-demand and time-limited allocation of resources. On the one hand, there is no fixed link connection at the sending and receiving end of the data, and resource allocation and connection establishment are only performed when there is a business need; on the other hand, the network side monitors the user's activity status, through Network Controller (abbreviation: RNC) sets a packet switching (Packet Switch, abbreviation: PS) permanent timer to control the release of network resources. For user terminals that have no data transmission requirements for a period of time, the system will release redundant dedicated resources to avoid waste. .

For example, in a WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) network, the PS permanent timer at the RNC is set with a delay parameter T1, when the user terminal has no data transmission in the time period exceeding the T1 , then the PDCP (Packet Data Convergence Protocol, packet data convergence protocol) layer requests the RRC (Radio Resource Control, radio resource control layer) layer to release the PS service of the user terminal.

However, with the popularization of smart terminals, PS services such as Instant Message (IM for short), Social Networking Services (SNS for short), and Location Based Services (LBS for short) have put forward the "forever Online” requirements, that is, expecting to ensure long-term occupancy of network resources and user experience, which conflicts with the above-mentioned network-side resource release mechanism.

For example, assuming that two user terminals are using IM for network chatting, although the IM service occupies network resources, the two user terminals are not always performing session interaction, that is to say, the network resources occupied by the IM service are not always are delivering business data packets. However, according to the existing network-side resource release mechanism, when the RNC detects that the time interval for transmitting no service data packets exceeds the preset delay parameter T1, it will initiate a resource release process. If the IM service wants to maintain If it is always online, it needs to re-request to obtain network resources, which will eventually lead to considerable signaling overhead and waste of network resources.

Contents of the invention

The invention provides a dynamic adjustment method of a PS permanent timer and an RNC, which are used to reduce signaling overhead and improve the utilization rate of network resources.

A dynamic adjustment method of a PS permanent timer, comprising:

The RNC monitors the established PS service of the user terminal;

The RNC judges the type of the PS service before the built-in PS permanent timer starts counting;

Adjusting the delay parameter of the PS permanent timer according to the determined type.

Another aspect of the present invention provides a RNC, including:

A monitoring module, configured to monitor the established PS service of the user terminal;

A judging module, configured to judge the type of the PS service monitored by the monitoring module before the built-in PS permanent timer of the RNC starts counting;

An adjusting module, configured to adjust the delay parameter of the PS permanent timer according to the type judged by the judging module.

The present invention adaptively adjusts the delay parameter of the PS permanent timer by judging the type of the PS service, so that the RNC can release resources at a more reasonable time, thereby avoiding a large amount of signaling overhead caused by the frequent establishment and release of the PS service, Improved utilization of network resources.

Description of drawings

Fig. 1 is the flowchart of the dynamic adjustment method embodiment of PS permanent timer of the present invention;

FIG. 2 is a specific flowchart of step 200 shown in FIG. 1;

Fig. 3 is the structural representation of the RNC embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the judging module 20 shown in FIG. 3 .

Detailed ways

Fig. 1 is the flowchart of the embodiment of the dynamic adjustment method of PS permanent timer of the present invention, as shown in the figure, comprises the following steps:

Step 100, the RNC monitors the established PS service of the user terminal.

Specifically, the RNC can monitor the transmission process of the service data packets of the PS service.

Step 200, the RNC judges the type of the PS service before the built-in PS permanent timer starts timing.

Wherein, the flow of the service data packet includes both uplink flow and downlink flow, and when the RNC monitors that the flow of the service data packet of the PS service drops to a preset flow threshold value, it indicates that the flow is interrupted Possibly, according to the existing network-side resource release mechanism, once the flow is interrupted, the built-in PS permanent timer in the RNC will be triggered to start counting, and the present invention will start to determine the type of PS service before the PS permanent timer starts counting. Therefore, the flow threshold is preset, and the preset flow threshold will not trigger the PS permanent timer to start counting.

Specifically, in this step, the time when the type of the PS service starts to be judged is recorded as the current time, and the specific judgment process will be described in detail later.

Step 300, adjust the delay parameter of the PS permanent timer according to the determined type.

Specifically, the RNC may set different delay parameters T1 for different types of PS services. For example, for the FTP service, due to the large number of service data packets in a single session of this service, the service flow is uninterrupted and lasts for a long time, and the time interval between two sessions initiated by the user is long, and the initiation time is relatively long. If it is fixed, it can be predicted that there is a high probability of no service flow for a long time after the current service flow is interrupted, so T1 can be set to 0, so that resources are released immediately after the service flow is interrupted to reduce resource occupation.

For another example, for QQ ^TM , as mentioned above, the number of service data packets in a single session of this service is small, the service flow duration is short, the time interval between two sessions initiated by the user terminal is short, and the session initiation time is relatively short. If the frequency is higher, it can be predicted that the probability of a new service flow will appear soon after the current service flow is interrupted. Therefore, T1>10s can be set to allow users enough reading time, reaction time and thinking time.

As shown in Figure 2, the above step 200 specifically includes the following steps:

Step 210, the RNC collects statistics on the current service flow characteristics and current user behavior characteristics of the PS service within the statistics period from the establishment time of the PS service to the current time.

Wherein, the current service flow characteristics may include, for example: service flow duration, the number of service data packets, and time distribution information when the service data packets arrive at the RNC; the user current behavior characteristics include: the user terminal uses The time period and geographic location of the PS service.

For example, when a user terminal uses the IM service of a mobile phone, each time a message containing a service data packet is sent, it is called a session, forming a service flow, and the cumulative time for sending all messages within the statistical period is called the service flow duration. Time: RNC will record the moment of receiving the service data packet to obtain the time distribution information; the RNC can use the time period and geographical location of the PS service by the base station of the cell where the user terminal accesses.

In step 220, the RNC matches the current service flow characteristics to obtain a first candidate type according to the pre-stored first mapping relationship information between reference service flow characteristics and service types.

Wherein, the first mapping relationship information in this step may be stored in the RNC, or stored in an additional reference information database for the RNC to query. The business types may include, for example:

Interactive services, such as: web browsing, online games, etc.;

Background business, such as: FTP (File Transfer Protocol, file transfer protocol) download, etc.;

Audio and video streaming services, such as online video, etc.

Conversational services, such as: QQ ^TM , MSN ^TM , Woyou ^TM , WeChat ^TM , etc.

Different service types correspond to different reference service flow characteristics, and the first mapping relationship information is used to record the corresponding relationship between service types and reference service flow characteristics. The first mapping relationship information can be initially created based on industry experience data, and then With the development of PS business, it is constantly updated.

Wherein, the first candidate type refers to a possible service type judged based on the matching result in this step. For example, assume that the statistics of the current service flow characteristics are: the number of service data packets in a single session is small, the service flow duration is short, the time interval between two sessions initiated by the user terminal is short, and the frequency of initiating sessions higher; then the first candidate type obtained after matching according to the first mapping relationship information may be: conversational services such as QQ ^TM and MSN ^TM .

Step 230, the RNC matches the user's current behavior characteristics to obtain a second candidate type according to the pre-stored second mapping relationship information between the user's historical behavior characteristics and service types.

Wherein, the user historical behavior characteristics refer to the user behavior characteristics obtained by statistics when the same user terminal uses the PS service multiple times before the PS service is established, so as to reflect the user's preference and usage habits; the second The mapping relationship information can be stored in the RNC, or stored in an additional reference information database for the RNC to query.

For example, assume that the user historical behavior characteristics indicate that the user terminal frequently uses QQ ^TM in area A during the time period from 12:00 am to 1:00 am; At 12:30 in the morning and the to-be-determined PS service is used in area A, the second candidate type may be obtained after matching according to the second mapping relationship information: QQ ^TM .

Step 240, the RNC judges the intersection of the first candidate type and the second candidate type as the type of the PS service.

For example, as in the above example, according to the matching result of step 220, it is known that the first candidate type may be: conversational services such as ^QQTM , ^MSNTM ; according to the matching result of step 230, it is known that the second candidate type may be: QQ ^TM ; the intersection of the first candidate type and the second candidate type is QQ ^TM ; therefore, the judgment result of this step is: the type of the PS service is QQ ^TM .

In addition, if the second candidate type may be: QQ ^TM and MSN ^TM , then the intersection of the first candidate type and the second candidate type is QQ ^TM and MSN ^TM , and it is still impossible to judge the PS service at this time. type, for this purpose, when the intersection still contains multiple types, the following steps can be continued:

Step 250, the RNC extracts the current key field value of the service data packet.

Wherein, the current key field value may be, for example, a value such as a port number carried in a service data packet.

Step 260, the RNC matches the current key field value to obtain a third candidate type according to the pre-stored third mapping relationship information between the reference key field value and the service type.

Wherein, the reference key field value is a key field value pre-extracted from various known service data packets; the corresponding relationship between the reference key field value and the business type is recorded in the third mapping relationship information , the third mapping relationship information in this step may be stored in the RNC, or stored in an additional reference information database for the RNC to query.

For example, when the port number extracted as the current key field value is 4000 or 5000, the third candidate type obtained after matching according to the third mapping relationship information may be: QQ ^TM .

Step 270, the RNC judges the intersection among the first candidate type, the second candidate type and the third candidate type as the type of the PS service.

For example, in the above example, the intersection among the first candidate type, the second candidate type and the third candidate type is QQ ^TM ; therefore, the judgment result of this step is: the type of the PS service is QQ ^TM .

The method described in this embodiment adaptively adjusts the delay parameter of the PS permanent timer by judging the type of the PS service, so that the RNC can release resources at a more reasonable time, thus avoiding a large number of delays caused by the frequent establishment and release of the PS service. Signaling overhead improves the utilization of network resources.

Fig. 3 is the schematic structural diagram of the RNC embodiment of the present invention, in order to realize above-mentioned method, as shown in the figure, this RNC comprises at least: monitoring module 10, judging module 20 and adjusting module 30, and its working principle is as follows:

The monitoring module 10 monitors the PS service established by the user terminal, and before the PS permanent timer built in the RNC starts timing, the judging module 20 judges the type of the PS service monitored by the monitoring module 10 .

Specifically, the monitoring module 10 can monitor the flow of the service data packets of the PS service, and when the monitoring module monitors that the flow of the service data packets of the PS service drops to a preset flow threshold, it indicates that the flow has The possibility of interruption, and according to the existing network-side resource release mechanism, once the flow is interrupted, the PS permanent timer built in the RNC will be triggered to start timing, and the judgment module 20 in this embodiment will start timing at the PS permanent timer The PS service type has been judged before, so the traffic threshold is preset, and the preset traffic threshold will not trigger the PS permanent timer to start counting.

Specifically, the time when the judging module 20 starts judging the type of the PS service is recorded as the current time, as shown in FIG. In the statistical period between the current moments, the current service flow characteristics and the current user behavior characteristics of the PS service are counted. Wherein, the current service flow characteristics include: service flow duration, the number of service data packets, and the time distribution information when the service data packets arrive at the RNC; the user current behavior characteristics include: the user terminal uses the The time period and geographic location of the PS service. For specific examples, refer to the foregoing method embodiments.

Then, the first matching unit 22 matches the current service flow characteristics to obtain the first candidate type according to the prestored reference service flow characteristics and the first mapping relationship information of the service type; and the second matching unit 23 according to the prestored The second mapping relationship information between the user's historical behavior characteristics and the service type is matched to the user's current behavior characteristics to obtain the second candidate type.

Then the judging unit 24 judges the intersection of the first candidate type and the second candidate type as the type of the PS service. In addition, when multiple types are included in the intersection, the judging module can also extract the current key field value of the service data packet through the extraction unit 25; then the third matching unit 26 can value and the third mapping relationship information of the business type, and the current key field value is matched to obtain the third alternative type; after that, the judgment unit 24 compares the first alternative type and the second alternative type and the third alternative type are determined to be the type of the PS service.

Finally, the adjustment module 30 adjusts the delay parameter of the PS permanent timer according to the type judged by the judging module 20 . For specific examples, refer to the foregoing method embodiments.

The RNC in this embodiment adjusts the delay parameter of the PS permanent timer adaptively by judging the type of the PS service, so that the RNC can release resources at a more reasonable time, thereby avoiding a large number of delays caused by the frequent establishment and release of the PS service. Signaling overhead improves the utilization of network resources.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (8)

1. a dynamic adjusting method for PS permanent timer, is characterized in that, comprising:

RNC monitors the PS business that user terminal has been set up;

Described RNC judged the type of described PS business before built-in PS permanent timer starts timing;

The delay parameter of described PS permanent timer is adjusted according to the described type judged;

The moment starting the type judging described PS business is designated as current time, and the type of the described PS business of described judgement comprises:

From in the statistical time range setting up the moment to described current time of described PS business, add up the current business flow characteristic sum user current behavior feature of described PS business;

According to the first mapping relation information of the reference Business Stream feature prestored and type of service, coupling is carried out to described current business flow feature and obtains the first alternative types;

According to the second mapping relation information of the user's historical behavior feature prestored and type of service, coupling is carried out to described user's current behavior feature and obtains the second alternative types;

The common factor of described first alternative types and described second alternative types is judged as the type of described PS business.

2. method according to claim 1, is characterized in that, when comprising multiple type in described common factor, described method also comprises:

Extract the current key field value of the business data packet of described PS business;

According to the 3rd mapping relation information of the reference primary key value prestored and type of service, coupling is carried out to described current key field value and obtains the 3rd alternative types;

Common factor between described first alternative types, the second alternative types and the 3rd alternative types is judged as the type of described PS business.

3. method according to claim 1, is characterized in that, described current business flow feature comprises: the quantity of Business Stream duration, business data packet and described business data packet arrive the Annual distribution information of described RNC; Described user's current behavior feature comprises: described user terminal uses time period and the geographical position of described PS business.

4. method according to claim 1, it is characterized in that, described RNC judged that before built-in PS permanent timer starts timing the type of described PS business comprises: when the flow that described RNC monitors the business data packet of described PS business is reduced to preset flow threshold value, judge the type of described PS business, wherein, described preset flow threshold value can not trigger described PS permanent timer and starts timing.

5. a RNC, is characterized in that, comprising:

Monitoring module, monitors for the PS business set up user terminal;

Judge module, judges the type of the described PS business monitored by monitoring module for the PS permanent timer built-in at described RNC before starting timing;

Adjusting module, for adjusting the delay parameter of described PS permanent timer according to the described type judged by judge module;

The moment starting the type judging described PS business is designated as current time, and described judge module comprises:

Statistic unit, for from the statistical time range setting up the moment to described current time of described PS business, adds up the current business flow characteristic sum user current behavior feature of described PS business;

First matching unit, for the first mapping relation information according to the reference Business Stream feature prestored and type of service, carries out coupling to described current business flow feature and obtains the first alternative types;

Second matching unit, for the second mapping relation information according to the user's historical behavior feature prestored and type of service, carries out coupling to described user's current behavior feature and obtains the second alternative types;

Decision unit, for being judged as the type of described PS business by the common factor of described first alternative types and described second alternative types.

6. RNC according to claim 5, is characterized in that, when comprising multiple type in described common factor, described judge module also comprises:

Extraction unit, for extracting the current key field value of the business data packet of described PS business;

3rd matching unit, for the 3rd mapping relation information according to the reference primary key value prestored and type of service, carries out coupling to described current key field value and obtains the 3rd alternative types;

Described decision unit is used for the type common factor between described first alternative types, the second alternative types and the 3rd alternative types being judged as described PS business.

7. RNC according to claim 5, is characterized in that, described current business flow feature comprises: the quantity of Business Stream duration, business data packet and described business data packet arrive the Annual distribution information of described RNC; Described user's current behavior feature comprises: described user terminal uses time period and the geographical position of described PS business.

8. RNC according to claim 5, is characterized in that:

Described monitoring module is for monitoring the flow of the business data packet of described PS business;

Described judge module is used for when the flow that monitoring module monitors the business data packet of described PS business is reduced to preset flow threshold value, judge the type of described PS business, wherein, described preset flow threshold value can not trigger described PS permanent timer and starts timing.