WO2013000221A1

WO2013000221A1 - Paging retransmission method and access network device

Info

Publication number: WO2013000221A1
Application number: PCT/CN2011/081265
Authority: WO
Inventors: 吴建平
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-06-30
Filing date: 2011-10-25
Publication date: 2013-01-03
Also published as: CN102395201A

Abstract

A paging retransmission method and an access network are applied in a CDMA 1X EVDO network. The method comprises: after a paging operation initiated for a terminal in order to carry out a service fails, an access network device paging the terminal again according to a paging control parameter pre-configured for a type to which the service belongs, the paging control parameter comprising the number of paging retransmissions; and if the terminal is not found through paging after paging with the number of paging retransmissions is completed, prohibiting initiation of the active paging process for the terminal within a paging lock duration pre-configured for the type to which the service belongs.

Description

Method for paging retransmission and access network device

Technical field

The present invention relates to a CDMA IX EVDO (Code Division Multiple Access System Enhanced Data Communication Evolution) network, and more particularly to a method for paging retransmission and an access network device.

Background technique

With the gradual popularization of wireless communication technologies, wireless communication networks have gradually covered every area where people live and work. CDMA IX EVDO technology has also entered the mainstream of wireless communication networks.

The original CDMA 1 X EVDO network mainly serves data communication, such as web browsing and data downloading. The end user actively initiates the service and leaves the network after the service is completed. As EVDO technology continues to evolve, more network applications 7 are carried on the EVDO network, and the scenes of paging terminals from the network side become more frequent.

As shown in Figure 1, the paging process in the EVDO network due to the data to be sent to the terminal includes:

a, PDSN (Packet Data Serving Node) notifies the PCF to send packet data to the terminal:

After receiving the notification, the PCF (Point Coordination Function) sends a service notification to the base station controller of the access network to notify that the data needs to be transmitted to the terminal;

c. After receiving the service notification, the access network replies to the PCF with a service response;

d. The base station controller in the access network calculates a base station that needs to send a paging message to the terminal and sends the paging message to the base stations. After receiving the message, all base stations that need to send the paging message send the message from the air interface. To page the terminal;

e. After the terminal is paged, the base station from which the paging message is received initiates an air interface request in reverse; f. After the air interface of the access network and the terminal is successfully established, the access network establishes the A port to communicate with the PDSN; After the establishment of the A port, the PDSN resumes communication with the terminal, and the network side data is transmitted to the terminal through the path. Due to the complex and diverse network environment and user behavior, there is no guarantee that every page will succeed. Different service types have different sensitivity to paging success rate, so paging failures have different experiences for users of different service types. Sensitive services have higher requirements on paging success rate. In order to ensure the user experience of different user types, the network system can formulate different paging retransmission strategies to improve user experience. And in the scenario where the user can never be paged, the paging of the user should be prohibited to save valuable network resources.

At present, there is basically no distinction between the paging retransmission mechanism of the user in the EVDO system, and the re-paging for the paging failure cannot be flexibly controlled according to the network conditions. Failure to perform page retransmission will make the user feel bad in an area or time when the call cannot be successfully found. A simple retransmission mechanism that does not distinguish between services and lack of paging retransmission control for services cannot distinguish the retransmission of sensitive services. Uniform use of low-security paging retransmission cannot satisfy the feelings of sensitive service users; The high-assurance paging policy provides high paging guarantee for a large number of paging-insensitive data services, which leads to a great waste of system resources, and the system resource consumption and user experience are relatively low in cost performance.

In addition, in the scenario where the user can never be paged (such as the user is turned off), when the network side receives the connection activation request, the user will not be paged regardless of the number of times of paging. Regardless of whether the service is sensitive, repeated network side paging retransmission or network side requested paging is a waste of network resources.

Summary of the invention

It is an object of the present invention to provide a method for paging retransmission and an access network device to improve system resource utilization.

To solve the above problems, the present invention provides a method for paging retransmission, which is applied to a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, including:

After the paging operation initiated by the service to the terminal fails, the access network device re-pages the terminal according to the paging control parameter pre-configured for the type of the service; wherein, the paging control parameter includes Number of page retransmissions;

If the terminal is still not paged after the paging of the paging retransmission times is completed, the active paging procedure for the terminal is prohibited from being initiated during the paging locking duration preconfigured for the type of the service. Optionally, the method further includes:

If the terminal actively communicates with the access network device or the paging lock duration has elapsed during the paging lock duration, the access network device receives the core network to perform the service initiation. After paging the request of the terminal, the paging procedure for the terminal is re-initiated.

Optional,

When paging the terminal again, the range of each page is not less than the range of the previous page.

Optionally, the method further includes:

If the core network receives the request for paging the terminal initiated by the service within the paging lock duration, the access network device returns a normal paging response to the core network. The present invention also provides a method for paging retransmission, which is applied to a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, including:

After the paging operation initiated by the service to the terminal fails, the access network device re-pages the terminal;

If the number of consecutive failures of the access network device to be consecutively queried by the terminal is equal to a threshold of consecutive failures pre-configured for the type of the service, the device is prohibited from initiating the session for the pre-configured paging lock duration of the type to which the service belongs. The active paging process of the terminal.

Optionally, the method further includes:

If the terminal actively communicates with the access network device or the paging lock duration has elapsed during the paging lock duration, the access network device receives the core network to perform the service initiation. After paging the request of the terminal, re-initiating a paging procedure for re-sending the terminal according to the number of re-configurations pre-configured for the type of the service.

Optionally, the method further includes: if the core network receives the request for paging the terminal initiated by the service, and the access network device sends the core to the core, The network replies to a normal page response.

Correspondingly, the present invention also provides an access network device, which is applied to a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, and includes: a first module, configured to: after the paging operation initiated by the service to the terminal fails, re-paging the terminal according to a paging control parameter pre-configured for the type of the service; wherein, the paging The control parameters include: the number of paging retransmissions;

a second module, configured to: after the first module still does not page to the terminal after completing the page number of paging retransmissions, the paging lock duration pre-configured for the type of the service It is forbidden to initiate an active paging procedure for the terminal.

Optionally, the device further includes:

a third module, configured to: the terminal actively communicates with the access network device during the paging lock duration, or the paging lock duration is obsolete, and the core network is configured to perform the service initiation. After paging the request of the terminal, the paging procedure for the terminal is re-initiated.

Optionally, the device further includes:

And a fourth module, configured to: when the request for paging the terminal initiated by the core network is performed within the paging lock duration, returning a normal paging response to the core network.

The present invention also provides an access network device for use in a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, including:

a first module, configured to: re-pick the terminal after failing to perform a paging operation initiated by the service to the terminal;

a second module, configured to: when the number of consecutive failures of the first module to page the terminal is equal to a threshold of consecutive failure times pre-configured for the type of the service, the paging lock pre-configured for the type of the service It is forbidden to initiate an active paging procedure for the terminal within the duration.

Optionally, the device further includes:

a third module, configured to: the terminal actively communicates with the access network device during the paging lock duration, or the paging lock duration is obsolete, and the core network is configured to perform the service initiation. After paging the request of the terminal, re-initiating a paging procedure for re-sending the terminal according to the number of re-configurations pre-configured for the type of the service.

Optionally, the device further includes:

And a fourth module, configured to: when the request for paging the terminal initiated by the core network is received within the paging lock duration, returning a normal paging response to the core network. Compared with the prior art, the present invention provides a method for flexibly configuring a paging retransmission policy according to a service model change supported by the network during network operation, and prohibiting continuous paging and lifting the ban for users who cannot continuously page. The control method of paging retransmission can adjust the paging retransmission interval and the number of times in real time according to the sensitivity of the new service to the paging during the network operation, and ensure the protection of the users of the paging sensitive user and the non-page sensitive user. And the cost performance of the system load performance.

BRIEF abstract

1 is a flow chart of a paging terminal in the related art;

2 is a schematic diagram of a method for paging retransmission in an embodiment of the present invention;

3 is a structural diagram of an access network device in an embodiment of the present invention;

4 is a schematic diagram of a method of paging retransmission in an application example of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

In this embodiment, a method for paging retransmission is applied to a CDMA IX EVDO network, as shown in FIG. 2, including:

Step 20: After failing to perform the paging operation initiated by the service to the terminal, the access network device re-pages the terminal according to the paging control parameter pre-configured for the type of the service; wherein, the paging control parameter includes The number of paging retransmissions may also include a paging interval;

The access network device is a base station controller;

Step 21: If the terminal is still not paged after completing the page number of paging retransmissions, the active paging process for the terminal is prohibited from being initiated during the paging lock duration preconfigured for the type of the service.

Or, if the number of times the access network device fails to page the terminal consecutively is equal to the number of consecutive failure times pre-configured for the type of the service, the paging pre-configured for the type of the service The active paging process for the terminal is prohibited from being initiated within the lock duration.

If the terminal actively communicates with the access network device during the paging lock duration, or the pre-configured paging lock duration has elapsed, the access network device releases the paging lock for the terminal, and receives the network side After the request for paging the terminal (such as the connection activation request) initiated by the foregoing service, the paging process for the terminal is re-initiated, that is, according to the number of paging retransmissions and the pre-configured for the type of the service. The call interval re-paging the terminal.

In implementation, when paging the terminal again, the range of each paging is not less than the range of the previous paging.

The paging control parameters pre-configured for each service type (including: number of paging retransmissions, paging interval, paging locking duration, continuous failure threshold, etc.) may be determined according to the current network model. For example, when the paging success rate of the entire network is high, it is not necessary to set paging retransmission for the normal data service, and the number of paging retransmissions of the type to which the service belongs can be configured as 0. If the current network contains many users who use a certain service, such as QChat (Tianyi Intercom) service, the paging interval for users using QChat service should be as short as possible, and the number of page retransmissions can be configured more. Generally, the configured number of paging retransmissions is less than the value of the consecutive failure threshold. The number of paging retransmissions refers to: the total number of times the designated terminal is paged before the paging is locked in one paging process; the number of consecutive paging times is the total number of times the paging initiated by a certain service to the designated terminal.

Regarding the expansion of the paging range, the paging of the general CDMA IX EVDO network has different paging ranges depending on the system implementation. For paging retransmission, the paging range can be expanded in turn when retransmitting. Generally, paging is preferentially performed in a small area. If the user has a long time to leave the network, the user may not be able to determine the area where the user is located.

If the CDMA IX EVDO system has more users mixed with the CDMA IX system, there may be a large number of users switching between the CDMA IX and CDMA IX EVDO systems. The continuous paging terminal of the CDMA IX EVDO system is not responding because the user is accessing voice communication under the CDMA IX system. Therefore, the paging lock duration can be set to the average duration of CDMA IX network voice communication. When the time is exceeded, the paging prohibition for the terminal is released to ensure that the user can return to the CDMA IX EVDO system and be paged after the end of the voice communication from CDMA 1 X.

In summary, in this embodiment, the paging retransmission method includes the following steps: Step A. Configure paging retransmission control parameters for each service type on the base station controller, including: paging retransmission times, paging intervals, and paging locking durations;

Step B: After receiving the connection activation request sent by the network side, searching for the corresponding paging retransmission control parameter according to the service type carried therein;

Step C. Set and start the timer according to the found paging interval configured for the foregoing service type, and then send a paging message, and set the number of paging transmissions to 1;

Step D. If the paging controller has not received the paging response when the paging interval timer expires, the current paging fails, and it is determined according to the value of the number of paging retransmissions configured for the current service type. Need to re-send the page (ie, determine whether the value of the number of page retransmissions is greater than 0), if necessary, that is, the value of the number of page retransmissions is greater than 0, then step E;

Step E. Expand the paging range and resend the paging message, and increase the value of the current paging transmission number by one;

Step F. When the paging fails again, if it is determined that the current number of paging transmission times reaches the continuous failure threshold set for the service type or the number of times of resending the paging message reaches the preset number of paging retransmissions The paging message is not resent, and the timer is started, the duration of the timer is the paging lock duration value set for the service type; otherwise, step E is performed;

Step G. During the paging lock, if the connection activation request sent by the network side is received again, the paging is not sent to the user;

Step H. During the paging lock, if the terminal actively communicates with the base station controller, the paging lock is released, and step I is performed;

Step H. If the above timer expires, the paging lock to the user is released;

Step I. After the paging lock is released, after receiving the above connection activation request from the network side again, step 8 is performed.

In this embodiment, an access network device is applied to a CDMA IX EVDO network, as shown in FIG. 3, including:

a first module, configured to: after the paging operation initiated by the service to the terminal fails, re-paging the terminal according to a paging control parameter pre-configured for the type of the service; wherein, the paging control parameter includes Number of page retransmissions; a second module, configured to disable the paging lock duration pre-configured for the type of the service after the first module still does not page to the terminal after completing the page number of paging retransmissions Initiating an active paging procedure for the terminal.

Preferably, the device further includes:

a third module, configured to: when the terminal actively communicates with the access network device, or the paging lock duration is outdated during the paging lock duration, the core network is configured to perform the service initiation After the request of the terminal is called, the paging process for the terminal is re-initiated.

Preferably, the device further includes:

And a fourth module, configured to: when the request for paging the terminal initiated by the core network is received within the paging lock duration, returning a normal paging response to the core network.

a first module, configured to re-paste the terminal after failing to perform a paging operation initiated by the service to the terminal;

a second module, configured to: when the number of consecutive failures of the first module to page the terminal is equal to a threshold of consecutive failure times pre-configured for the type of the service, in a paging lock duration pre-configured for the type of the service It is forbidden to initiate an active paging procedure for the terminal.

Preferably, the device further includes:

a third module, configured to: when the terminal actively communicates with the access network device, or the paging lock duration is outdated during the paging lock duration, the core network is configured to perform the service initiation After the request of the terminal is called, the paging process for re-initiating the re-sending of the terminal according to the number of re-configurations pre-configured for the type of the service is re-initiated.

Preferably, the device further includes:

The embodiments of the present invention will be further described below using an application example. As shown in FIG. 4, the flow of the paging retransmission method is as follows:

Step 1: After the network side data arrives, the PDSN notifies the PCF to receive the data;

Step 2: After receiving the notification, the PCF sends a connection activation request (A9_BSServiceRequest) to the base station controller, requesting the base station controller to activate the link with the terminal;

Step 3: After receiving the connection activation request of the PCF, the base station controller first determines whether the current base station controller is paging the terminal, and if yes, returns a normal paging terminal response (A9_BSServiceResponse) to the PCF, otherwise proceeds to step 4;

Step 4: The base station controller first determines the service type of the terminal, and if it is a normal paging, obtains a paging retransmission control parameter pre-configured for the service type to control paging retransmission, and if it is a high-level service, obtains a high-level service. Pre-configured paging retransmission control parameters to control paging retransmission;

Step 5: The base station controller sets a paging retransmission timer according to the found paging retransmission control parameter of the current service, and sends a paging message, and records the current paging number;

Step 6: If the paging response replied by the terminal is received before the paging retransmission timer expires, the paging retransmission timer is turned off, and all the counters are cleared; otherwise, the process proceeds to step 7;

Step 7: If the paging response of the terminal reply is not received when the paging retransmission timer expires, the paging fails, and the base station controller retransmits the threshold of consecutive failures in the control parameter according to the found current service paging retransmission control parameter. And the value of the current paging number determines whether the paging terminal needs to be disabled, if yes, the process proceeds to step IX; otherwise, the process proceeds to step 8; that is, if the value of the current paging number reaches the continuous failure threshold, the paging terminal needs to be disabled; Otherwise, there is no need to prohibit it;

Step 8: judging whether paging retransmission is required according to the number of paging retransmissions of the paging retransmission control parameter of the current service, if not, the paging retransmission count counter is cleared, and the paging retransmission is ended; otherwise, the step is entered. 5: That is: if the number of times of resending the paging message reaches the preset number of paging retransmissions, no retransmission of the paging is required; otherwise, the paging needs to be resent;

Step 9: Stop paging the terminal, and set a paging prohibition timer according to the paging lock duration in the paging retransmission control parameter of the current service;

Step 10: During the paging prohibition period, if the PCF sends a connection activation request to the base station controller, requesting the base station controller to activate the link with the terminal, the base station controller sends a normal paging response to the PCF, and does not page the terminal; Step 11: During the paging prohibition period, if the terminal actively communicates with the base station controller, the paging prohibition of the terminal is cancelled; otherwise, the process proceeds to step 12;

Step 12: The paging prohibit timer expires, the paging prohibition processing for the terminal is released, and then step 3 is performed.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program instructing the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. In view of the present invention, various other modifications, equivalents, improvements, etc., should be made without departing from the spirit and scope of the invention. It is included in the scope of protection of the present invention.

Industrial applicability

The foregoing implementation manner can adjust the paging retransmission interval and the number of times in real time according to the sensitivity of the new service to the paging during the network operation, and ensure the user experience of the paging sensitive user and the non-paging sensitive user and the system load performance. .

Claims

Claim

A method for paging retransmission, applied to a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, comprising:

After the paging operation initiated by the service to the terminal fails, the access network device re-pages the terminal according to the paging control parameter pre-configured for the type of the service; wherein, the paging control parameter includes : number of page retransmissions;

If the terminal is still not paged after the paging of the number of page retransmissions is completed, the active paging process for the terminal is prohibited from being initiated within the pre-configured paging lock duration for the type to which the service belongs.

2. The method of claim 1 further comprising:

3. The method of claim 1 wherein:

4. The method of claim 1 further comprising:

If the core network receives the request for paging the terminal initiated by the service within the paging lock duration, the access network device returns a normal paging response to the core network.

5. A method for paging retransmission, applied to an enhanced data communication evolution of a code division multiple access system

(CDMA IX EVDO) network, including:

If the number of consecutive failures of the access network device to ping the terminal is equal to the number of consecutive failure times pre-configured for the service of the type, the device is prohibited from initiating the session for the pre-configured paging lock duration for the type of the service. The active paging process of the terminal.

6. The method of claim 5 further comprising: If the terminal actively communicates with the access network device or the paging lock duration has elapsed during the paging lock duration, the access network device receives the core network to perform the service initiation. After paging the request of the terminal, re-initiating a paging procedure for re-sending the terminal according to the number of re-configurations pre-configured for the type of the service.

7. The method of claim 5 or 6, further comprising:

8. An access network device, applied to a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, comprising:

a first module, configured to: after the paging operation initiated by the service to the terminal fails, re-paging the terminal according to a paging control parameter pre-configured for the type of the service; wherein, the paging Control parameters include: number of page retransmissions;

9. The device of claim 8 further comprising:

10. The device of claim 8 further comprising:

11. An access network device for use in a code division multiple access system enhanced data communication evolution (CDMA IX EVDO) network, comprising:

a first module, configured to: re-paste the terminal after failing to perform a paging operation initiated by the service to the terminal;

a second module, configured to: when the number of consecutive failures of the first module to page the terminal is equal to a threshold of consecutive failures pre-configured for the type of the service, The active paging procedure for the terminal is prohibited from being initiated within the configured paging lock duration.

12. The device of claim 11 further comprising:

13. The device of claim 11 or 12, further comprising: