WO2012068856A1

WO2012068856A1 - Call processing method and terminal

Info

Publication number: WO2012068856A1
Application number: PCT/CN2011/075125
Authority: WO
Inventors: 孙莎; 钱威
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-25
Filing date: 2011-06-01
Publication date: 2012-05-31
Also published as: CN102006638B; CN102006638A

Abstract

A call processing method and a terminal are disclosed in the present invention, and the method includes: after receiving a feature notification message from Mobile Switching Subsystem (MSS), Base Station Subsystem (BSS) releases an established base channel or stops an operation for establishing a base channel, wherein, the feature notification message is used for marking disadvantage of ground circuit resource, the base channel is the channel established by BSS for wireless priority access call; BSS receives an assignment message from MSS; according to the assignment message, BSS reestablishes the base channel and performs the call processing. By the present invention, the utilization ratio of the wireless base channel is improved.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a call processing method and a terminal. BACKGROUND OF THE INVENTION Wireless priority access service is a service that can provide preferential access to a wireless network for legally authorized organizations and users, and is characterized in that when resources of the network (including wireless resources and terrestrial circuit resources) are insufficient. These legally authorized organizations and users initiate wireless priority access voice calls. The network side does not cause the call to fail due to insufficient resources. Instead, the call is queued according to priority. Once available resources are available. The resource is assigned to the call and a call is made to achieve the purpose of providing priority access to the service. In general, wireless priority access services are often used in the event of an emergency. The main features of the wireless priority access service are as follows: (1) The wireless priority access service is only provided to legally authorized organizations and users, and the user needs to sign a contract in advance to obtain a license; (2) the user passes before the dialed number Add a special prefix (for example, *272 to identify the wireless priority access service) to obtain the wireless priority access service, that is, the service is for a single call, not for the user; (3) the user uses wireless priority access When the service is in the service, if the system is congested, the system queues the call (does not preempt other users). The maximum queue time can be set according to the actual application scenario. FIG. 1 is a flowchart of a wireless priority access call when a ground circuit is congested in the related art. As shown in FIG. 1 , the method includes the following steps: Step 4: S 101: The terminal initiates a wireless priority access call, that is, before the called number Dial *272. Step S102: The base station subsystem (BSS) sends a service request message to the switch after receiving the start message, requesting to establish a call. Step S103: In synchronization with step S102, the BSS starts to establish a basic channel, and the basic channel is successfully established. Step S104: After receiving a service request message of the BSS, the switching subsystem (Mobile Switching Subsystem, MSS for short) performs a series of operations (for example, authentication, etc.), and finds that the call is a wireless priority access call, and Insufficient ground circuit resources were found, MSS structural feature notification The information is sent to the BSS to inform the BSS that the ground circuit resources are congested. At the same time, the MSS starts to queue the ground circuit resources for the call, wherein the queue duration can be flexibly set according to the application. Step S105: After receiving the feature notification message of the MSS, the BSS learns that the call is a wireless priority access call and the ground circuit resources are congested, and sends a feature notification message to the mobile station (MS) to notify the MS. Waiting, at the same time, the BSS sets the timer to wait for the MSS assignment request message, and the timer duration is set according to the MSS side queue duration. Step S106: Before the queuing timer expires, the MSS detects that there is available ground circuit resources. Step S107: The MSS configuration assignment request message is sent to the BSS, where the message carries the priority of the current call. Step S108: After receiving the assignment request message, the BSS performs a related operation, and constructs an extended channel assignment message to be sent to the terminal. Step S109: In synchronization with step S108, the BSS configuration assignment completion message is sent to the MSS. Step S110: The MS transits to the traffic channel. Step S111: Enter the subsequent call flow. It can be seen from the above process that when the terrestrial circuit is queued, the basic channel required for the call has been successfully established, that is, the basic channel occupied by the call is actually idle during the time of queuing on the ground. Then there will be two cases:

(1) If the ground circuit _ 失败 team fails, that is, there is no available ground circuit resources for more than 4 queue timers, the call will fail, then the wireless basic channel resources occupied during the queue are wasted. (2) The ground circuit is queued successfully. For the same reason, the wireless basic channel resources occupied during the queue are also wasted. In summary, the call processing method when the ground circuit is congested in the wireless priority access call in the related art causes the utilization of the wireless basic channel resource to be relatively low. SUMMARY OF THE INVENTION A main object of the present invention is to provide a call processing method and a terminal, which solve the problem that a call processing method when a ground circuit is congested in a wireless priority access call in the related art causes a low utilization rate of a wireless basic channel resource. . In order to achieve the above object, according to an aspect of the present invention, a call processing method is provided. The call processing method according to the present invention includes: a base station subsystem (BSS), after receiving a feature notification message from a switching subsystem (MSS), releasing an already established basic channel or stopping an operation of establishing a basic channel, wherein the feature notification The message is used to identify insufficient ground circuit resources, and the basic channel is a channel established by the BSS for the wireless priority access call; the BSS receives the assignment message from the MSS; and the BSS re-establishes the basic channel according to the assignment message for call processing. Preferably, the receiving, by the BSS, the assignment message from the MSS comprises: the BSS receiving the assignment message from the MSS in a predetermined first time interval, wherein the duration of the timer setting is set according to the MSS is the queuing time of the wireless priority access call. set. Preferably, the BSS re-establishes the basic channel according to the assignment message and performs call processing, including: the BSS re-establishes the basic channel according to the assignment message and performs call processing after the predetermined second time interval after releasing the basic channel. Preferably, after receiving the feature notification message from the MSS, the base station subsystem BSS further includes: the BSS forwarding the feature notification message to the mobile station MS to notify the MS to wait for access. Preferably, the BSS assignment message re-establishes the basic channel for call processing, including: the BSS generates an extended channel assignment message and sends the message to the MS, and generates an assignment completion message to be sent to the MSS for the MS to enter the traffic channel. In order to achieve the above object, according to an aspect of the present invention, a base station subsystem (BSS) is provided. The BSS according to the present invention includes: a release module, for the BSS in which the BSS is located, after receiving the feature notification message from the switching subsystem MSS, releasing the basic channel that has been successfully established or stopping the operation of establishing the basic channel, wherein the feature The notification message is used to identify that the ground circuit resources are insufficient, the basic channel is a channel established by the BSS for the wireless priority access call, the receiving module is configured to receive the assignment message from the MSS, and the processing module is configured to re-establish the basic assignment message. The channel performs call processing. Preferably, the receiving module comprises: a receiving submodule, configured to receive an assignment message from the MSS in a predetermined first time interval, wherein the predetermined first time interval is based on the MSS as a queuing time of the wireless priority access call To set. Preferably, the processing module is configured to re-establish the basic channel and perform call processing after the predetermined second time interval after the basic channel is released. Preferably, the BSS further includes: a forwarding module, configured to: the BSS forwards the feature notification message to the mobile station MS to notify the MS to wait for access. Preferably, the processing module includes: a first generating module, configured to generate an extended channel assignment message sent to the MS for the MS to enter the traffic channel; and a second generating module, configured to generate the assignment complete message and send the message to the MSS for the MS transfer Enter the traffic channel. With the present invention, after receiving the feature notification message from the MSS, the BSS releases the successful establishment of the basic channel or stops the operation of establishing the basic channel, and solves the call when the ground circuit is congested in the wireless priority access call in the related art. The processing method leads to a problem that the utilization of the wireless basic channel resources is relatively low, thereby improving the effect of the wireless basic channel utilization. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart of a wireless priority access call ground circuit congestion call setup according to the related art; FIG. 2 is a flow chart of call processing according to an embodiment of the present invention; FIG. 3 is a flowchart according to an embodiment of the present invention. FIG. 4 is a structural block diagram of a BSS according to an embodiment of the present invention; and FIG. 5 is a block diagram showing a preferred structure of a BSS according to an embodiment of the present invention. FIG. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. This embodiment provides a call processing method. FIG. 2 is a flowchart of call processing according to an embodiment of the present invention. As shown in FIG. 2, the method includes: Step S202: After receiving a feature notification message from an MSS, the BSS The operation of establishing a basic channel is completed or the operation of establishing a basic channel is stopped, wherein the feature notification message is used to identify that the ground circuit resources are insufficient, and the basic channel is a channel established by the BSS for the wireless priority access call. Step 4: S204: The BSS receives the assignment message from the MSS. Step S206: The BSS re-establishes the basic channel according to the assignment message to perform call processing. Through the above steps, after receiving the feature notification message from the MSS, the BSS releases the basic channel that is successfully established or stops the operation of establishing the basic channel, and the released resources can be allocated to the service that does not need the ground circuit resources, thereby avoiding related technologies. The call processing method when the terrestrial circuit is congested in the wireless priority access call causes a problem that the utilization of the wireless basic channel resources is relatively low, thereby improving the utilization of the wireless basic channel. Preferably, a preferred embodiment of step S204 is described below. The BSS receives the assignment message from the MS S within a predetermined first time interval, wherein the predetermined first time interval is set according to the MSS is the queuing time of the wireless priority access call. With the preferred embodiment, the BSS receives the assignment message within a preset length of time of the scheduler, which improves the accuracy and efficiency of the BSS to obtain the assignment message. Preferably, a preferred embodiment of step S206 is described below. The BSS re-establishes the basic channel and performs call processing according to the assignment message after a predetermined second time interval after releasing the basic channel. With the preferred embodiment, the BSS re-establishes the basic channel after a predetermined time interval after the release, thereby avoiding system turbulence, for example: while the BSS releases the basic channel, the MSS immediately allocates available terrestrial circuit resources, causing one side to release the basic channel. While requesting to establish a basic channel. Preferably, after the base station subsystem BSS receives the feature notification message from the mobile station subsystem MSS, the BSS forwards the feature notification message to the mobile station MS to inform the MS to wait for access. Pass this In a preferred embodiment, the MS receives the feature notification message from the MSS through the BSS to wait for access, thereby ensuring the reliability of the communication. Preferably, a preferred embodiment of step S206 is described below. The BSS generates an extended channel assignment message and sends it to the MS, and generates an assignment completion message to be sent to the MSS for the MS to enter the traffic channel. Through the preferred embodiment, the BSS generates an extended channel assignment message and an assignment complete message for completing the MS transfer to the traffic channel, and using the existing process to implement the call, reducing the development cost. The preferred embodiment of the present invention provides a call method. The present embodiment combines the foregoing embodiments and preferred embodiments thereof. FIG. 3 is a call setup procedure for special handling of a wireless basic channel when a ground circuit is congested according to an embodiment of the present invention. As shown in FIG. 3, the method includes: Step S301: The terminal initiates a wireless priority access call, that is, dials *272 before the called number. Step S302: After receiving the start message, the BSS sends a service request message to the switch to request to establish a call. Step S303: Synchronize with S302, the BSS starts to establish a basic channel, and the basic channel is successfully established. Step S304: After receiving the service request message of the BSS, the MSS performs a series of operations (authentication, etc.), and finds that the call is a wireless priority access call, and finds that the ground circuit resources are insufficient, and the MSS structural feature notification message is sent to the BSS. The BSS ground circuit resource is notified to be congested; at the same time, the MS S starts to queue the ground circuit resources for the call, and the queue duration can be flexibly set according to the application. Step S305: After receiving the feature notification message of the MSS, the BSS learns that the call is a wireless priority access call and the ground circuit resources are congested, and sends a feature notification message to the MS to notify the MS to wait, and the BSS sets a timer to wait for the MSS finger. With the request message, the timer duration is set according to the MSS side queue duration. Step S306: Synchronize with step S305, the BSS releases the successfully established wireless basic channel, and stops establishing the basic channel that has not been successfully established. Set Timer 1 at the same time. Through this step, the MSS is prevented from releasing the wireless basic channel, and the MSS immediately allocates available terrestrial circuit resources, thereby causing one side to release the wireless basic channel, and requesting to establish a wireless basic channel, causing disorder to the system. Step S307: Before the queuing timer expires, the MSS detects that there is available ground circuit resources. Step S308: The MSS configuration assignment request message is sent to the BSS, where the message carries the priority of the current call. Step S309: After receiving the assignment request message, the BSS performs basic channel establishment after the timer t expires, and the basic channel is successfully established. Step S310: The BSS constructs an extended channel assignment message and sends the message to the MS. Step S311: Synchronization with step S310, the BSS configuration assignment completion message is sent to the MSS. Step S312: The MS transits to the traffic channel. Step S313: Enter a subsequent call flow. The present embodiment provides a BSS. FIG. 4 is a structural block diagram of a BSS according to an embodiment of the present invention. As shown in FIG. 4, the BSS includes: a release module 42, a receiving module 44, and a processing module 46. For detailed description, the release module 42 is configured to release, after receiving the feature notification message from the MSS, the basic channel that has been successfully established or stop the operation of establishing the basic channel, where the feature notification message is used to identify the ground circuit. The resource is insufficient, the basic channel is a channel established by the BSS for the wireless priority access call, the receiving module 44 is configured to receive the assignment message from the MSS, and the processing module 46 is configured to re-establish the basic channel according to the assignment message for call processing. 5 is a block diagram of a preferred structure of a BSS according to an embodiment of the present invention. As shown in FIG. 5, the BSS further includes: a forwarding module 52. The receiving module 44 includes: a setting submodule 442 and a receiving submodule 444; The detailed description is as follows: The receiving module 44 includes: a receiving submodule 444, configured to receive an assignment message from the MSS in a predetermined first time interval, where the first time interval is based on the queuing time of the wireless priority access call by the MSS. set up. The forwarding module is configured to: the BSS forwards the feature notification message to the mobile station MS to notify the MS to wait for access. Preferably, the processing module 44 is configured to re-establish the basic channel and perform call processing according to the assignment message after a predetermined second time interval after releasing the basic channel. The processing module 46 includes: a first generating module 462, configured to generate an extended channel assignment message sent to the MS for the MS to enter the traffic channel; and a second generating module 464, configured to generate the assignment complete message and send the message to the MSS for the MS transfer Enter the traffic channel. With the foregoing embodiment, a call processing method and a base station subsystem are provided. After receiving a feature notification message from an MSS, the BSS releases a basic channel that is successfully established or stops performing an operation of establishing a basic channel, and the released resources may be allocated to The service usage of terrestrial circuit resources is not required, thereby improving the utilization of the wireless basic channel. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A call processing method, comprising:

After receiving the feature notification message from the switching subsystem MSS, the base station subsystem BSS releases the basic channel that has been successfully established or stops the operation of establishing the basic channel, where the feature notification message is used to identify that the ground circuit resources are insufficient. The basic channel is a channel established by the BSS for a wireless priority access call;

The BSS receives an assignment message from the MSS;

The BSS re-establishes the basic channel according to the assignment message to perform call processing.

2. The method according to claim 1, wherein the receiving, by the BSS, the assignment message from the MSS comprises:

The BSS receives the assignment message from the MSS within a predetermined first time interval, wherein the duration of the timer setting is set according to the MSS is the queuing time of the wireless priority access call.

The method according to claim 1, wherein the BSS re-establishes the basic channel according to the assignment message and performs call processing, including:

The BSS re-establishes the basic channel and performs call processing according to the assignment message after a predetermined second time interval after releasing the basic channel.

The method according to claim 1, wherein after receiving the feature notification message from the MSS, the base station subsystem BSS further includes:

The BSS forwards the feature notification message to the mobile station MS to notify the MS to wait for access.

The method according to claim 1, wherein the BSS re-establishes the basic channel according to the assignment message to perform call processing, including:

The BSS generates an extended channel assignment message and sends the message to the MS, and generates an assignment completion message to be sent to the MSS for the MS to enter the traffic channel.

6. A base station subsystem BSS comprising: a release module, configured to: after receiving the feature notification message from the switching subsystem MSS, release the basic channel that has been successfully established or stop performing the operation of establishing a basic channel, where the feature notification message is used to identify the ground circuit The resource is insufficient, and the basic channel is a channel established by the BSS as a wireless priority access call;

a receiving module, configured to receive an assignment message from the MSS;

And a processing module, configured to re-establish the basic channel according to the assignment message to perform call processing.

The BSS according to claim 6, wherein the receiving module comprises:

a receiving submodule, configured to receive an assignment message from the MSS in a predetermined first time interval, where the predetermined first time interval is used to queue the wireless priority access call according to the MSS Time to set.

The BSS according to claim 6, wherein the processing module is configured to re-establish the basic channel and perform call processing after the predetermined second time interval after releasing the basic channel. .

The BSS according to claim 6, wherein the BSS further comprises: a forwarding module, configured to forward the feature notification message to the mobile station MS to notify the MS to wait for access.

10. The BSS according to claim 6, wherein the processing module comprises:

a first generating module, configured to send an extended channel assignment message to the MS for the MS to enter a traffic channel;

And a second generating module, configured to generate an assignment complete message sent to the MSS for the MS to enter a traffic channel.