CN1909718A - Method for urgent call handling method in WCDMA system - Google Patents
Method for urgent call handling method in WCDMA system Download PDFInfo
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- CN1909718A CN1909718A CNA2005100413857A CN200510041385A CN1909718A CN 1909718 A CN1909718 A CN 1909718A CN A2005100413857 A CNA2005100413857 A CN A2005100413857A CN 200510041385 A CN200510041385 A CN 200510041385A CN 1909718 A CN1909718 A CN 1909718A
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- 238000003672 processing method Methods 0.000 claims description 26
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Abstract
The invention relates to a method for processing emerge call in WCDMA system, for processing the emerge call of parallel service of WCDMA, wherein the corn network sets highest priority for the wireless access load of emerge call, and it comprises following steps: 1, wireless network controller processes the RRC connection request of said emerge call; 2, the corn network sets the priority of emerge call as highest priority; 3, the wireless network controller distributes resource for emerge call. The invention sets the priority of emerge call at the network side as highest one, to improve the connection rate of emerge rate and improve the service quality of operator.
Description
Technical field
The present invention relates to emergent call processing method, particularly a kind of emergent call processing method that is used for the WCDMA system.
Background technology
Urgent call comprises fire alarm, robber and police, medical rescue, disaster event etc., public's communication system must provide emergency call service, and it is high that the priority of the priority ratio general calling of urgent call is wanted, so that can in time obtain assistance and processing when emergency takes place.
The method that different communication systems is handled urgent call is different.In the WCDMA system, general call flow comprises the steps: as shown in Figure 1
Step S100, UE (User Equipment, user's set) prepare to make a call, to RNC (Radio Network Controller, radio network controller) sends RRC (Radio ResourceControl, Radio Resource control) and connect the request of foundation, have in the request message and set up reason;
Step S101, RNC is the UE distributing radio resource, sets up RRC and connects;
Step S102, UE sends CM SERVICE REQUEST message to CN (Core Network, core net), shows that COS is a voice call;
Step S103, CN sends CM SERVICE ACCEPT message to UE;
Step S104, UE sends CALL SETUP message to CN;
Step S105, CN sends RAB (Radio Access Bearer, RAB) to RNC and sets up request message, has precedence information in the request message;
Step S106, RNC are this call distribution Radio Resource;
Step S107 sets up radio bearer between RNC and the UE;
Step S108, RNC sends RAB to CN and sets up response message, and RAB sets up and finishes;
Step S109, UE and CN finish other call signalling flow.
In above-mentioned call flow, RNC will carry out the allocation of radio resources process twice, once is when RRC connects foundation, once is when RAB sets up.When RAB set up, RNC was according to the priority assignment resource of calling out.Set up the precedence information that has calling in the request message at RAB, 3GPP agreement regulation one has 1 to 15 totally 15 priority, and wherein 1 priority is the highest, and 15 priority is minimum.When carrying out resource allocation, the calling of high priority can priority allocation to Radio Resource, when resource congestion, the calling of high priority can be seized the resource that the calling of low priority takies.
For urgent call, network side comprises that RNC and CN should be preferably its Resources allocation, and network side comprises RNC and CN.In order to reach this purpose, whether network side at first will identify a calling is urgent call: if first calling that urgent call is UE sets up, setting up in RRC connection request message is former in urgent call.After RNC receives, check and set up reason that if urgent call, RNC can determine to its priority allocation resource or seize the resource of other ordinary call.After the RRC connection was set up and finished, UE sent CM SERVICE REQUEST to CN, carries the requested service type in the message, and CN can learn urgent call or general calling according to COS.
A main feature of WCDMA and other 3G system provides voice and packet data concurrent service, and promptly a UE can initiate a plurality of business or calling simultaneously.If the urgent call of UE is first calling of this UE, RNC can identify urgent call according to RRC establishment of connection reason, for RRC connects and subsequently RAB sets up the priority allocation resource, guarantees the success of urgent call.If but first calling of UE is a general calling or data service, and then initiation urgent call, in this case, CN can identify urgent call by the COS in the CMSERVICE REQUEST message, but because CMSERVICE REQUEST message is transparent transmission for RNC, RNC does not know the content of CM SERVICEREQUEST message, so RNC can't identify urgent call.At this moment, RNC is to set up priority assignment resource in the request message according to RAB carrying out when RAB sets up, and that RAB sets up priority is relevant with user signing contract information, the priority ratio of might the user contracting is lower, so under the situation of system congestion, RNC will can not be the urgent call preempting resources, urgent call will be failed, and this is the treatment principle that does not meet urgent call.
The 3GPP agreement does not stipulate how 15 priority that RAB assigns are used at present, in disclosed patent and the document, does not have the processing method about urgent call under the voice and packet data concurrent service situation yet.
Summary of the invention
A kind of method of handling urgent call in the WCDMA system that The present invention be directed to above-mentioned situation and propose can in time be handled the urgent call in the WCDMA system, guarantees the success rate of urgent call.
To achieve these goals, the invention provides the emergent call processing method in a kind of WCDMA system, the urgent call that is used to handle the voice and packet data concurrent service of WCDMA is handled, and wherein, core net is the priority that the RAB of described urgent call is provided with highest level.
Emergent call processing method in the above-mentioned WCDMA system wherein, specifically may further comprise the steps:
Step 1, radio network controller are handled the RRC connection request of described urgent call;
The priority that step 2, core net dispose described urgent call is highest level;
Step 3, radio network controller are described urgent call Resources allocation.
Emergent call processing method in the above-mentioned WCDMA system, wherein, described step 1 specifically may further comprise the steps:
Step 11, described radio network controller receives the Radio Resource control connection of user's set and sets up request message;
Step 12, described radio network controller are that described Radio Resource control connection is set up request application downgoing channelized codes resource and set up the Radio Resource control connection;
Wherein, when the downgoing channelized codes resource had the free time, described radio network controller directly was described urgent call allocation of downlink channelization code resource, and sets up the Radio Resource control connection; During the downgoing channelized codes resource congestion, described radio network controller discharges a priority and is lower than the calling of the priority of described urgent call, and is described urgent call allocation of downlink channelization code resource, sets up the Radio Resource control connection.
Emergent call processing method in the above-mentioned WCDMA system, wherein, during the downgoing channelized codes resource congestion, described radio network controller discharges the calling that the existing call medium priority is minimum, and be described urgent call allocation of downlink channelization code resource, set up the Radio Resource control connection.
Emergent call processing method in the above-mentioned WCDMA system, wherein, described step 3 specifically may further comprise the steps:
Step 31, described radio network controller receives from the RAB of the described urgent call of described core net and sets up request message;
Step 32, described radio network controller are that described RAB is set up request application downgoing channelized codes resource and set up radio bearer;
Wherein, when the downgoing channelized codes resource had the free time, described radio network controller directly was described urgent call allocation of downlink channelization code resource, and sets up radio bearer; During the downgoing channelized codes resource congestion, described radio network controller discharges the calling that at least one priority is lower than the priority of described urgent call, and is described urgent call allocation of downlink channelization code resource, sets up radio bearer.
Emergent call processing method in the above-mentioned WCDMA system, wherein, during the downgoing channelized codes resource congestion, described radio network controller discharges the minimum calling of at least one existing call medium priority, and be described urgent call allocation of downlink channelization code resource, set up radio bearer.
Emergent call processing method in the above-mentioned WCDMA system, wherein, described highest level priority is 1 grade, minimum level priorities is 15 grades.
Use the emergent call processing method in the WCDMA of the present invention system, priority in the network side urgent call is set to the highest, can be implemented under the situation of voice and packet data concurrent service in the WCDMA system the processing of urgent call, improved the call completion ratio of urgent call, improved operator's service quality.
Description of drawings
Fig. 1 is a general calling flow chart in the WCDMA system;
Fig. 2 handles the flow chart that urgent call RRC connects for RNC in the emergent call processing method in the WCDMA of the present invention system;
Fig. 3 handles the flow chart of urgent call priority configuration for CN in the emergent call processing method in the WCDMA of the present invention system;
Fig. 4 is the process chart of urgent call Resources allocation for RNC in the emergent call processing method in the realization WCDMA of the present invention system.
Embodiment
Emergent call processing method in the WCDMA of the present invention system keeps in the priority (being priority 1 in an embodiment of the present invention) of CN side with highest level, be used for urgent call of the present invention, other 14 grades of priority (being priority 2～priority 15 in an embodiment of the present invention) are used for contracted user's general calling.
RNC receives the RRC request of connect setting up, and according to setting up reason and judge whether it is urgent call in the message, if urgent call, under the situation of system congestion, the resource race to control with initiating general calling is the urgent call Resources allocation; If general calling is not then initiated resource race to control.
CN receives CM SERVICE REQUEST message, judge whether it is urgent call according to the requested service type: if urgent call, set up at RAB that priority is set to limit priority (priority 1) in the request message, and no matter user's signatory priority situation; If general calling is then set up the priority that the priority of contracting according to the user in the message disposes RAB at RAB.
RNC receives that RAB sets up message, according to the priority assignment resource in the message.When system congestion, the calling of high priority can be seized the resource that the calling of low priority takies, and priority is that 1 calling can be seized other all priority and is lower than the resource that 1 calling takies.Simultaneously, priority is that 1 calling can not be carried out resource race to control by other calling, has so just guaranteed the priority treatment of urgent call.
Below in conjunction with a concrete example technical scheme of the present invention is described further.
Fig. 2 comprises the steps: for RNC in the emergent call processing method in the realization WCDMA of the present invention system handles the flow process that urgent call RRC connects
Step S201, RNC receive the RRC connection of UE and set up request message;
Step S202, RNC connect according to RRC and set up setting up reason and judge whether it is urgent call in the request message, if execution in step S203, otherwise execution in step S206;
Step S203, RNC has judged whether idle downgoing channelized codes resource for this RRC connects application downgoing channelized codes resource, if there is not execution in step S204, otherwise execution in step S205;
Step S204, RNC selects a calling that it is discharged from all priority are lower than the calling of priority of urgent call; At this, the present invention selects to discharge the minimum calling of priority in the existing call;
Step S205, RNC are urgent call allocation of downlink channelization code resource, set up RRC and connect;
Step S206, the RRC connection building process of execution general calling, distributing radio resource are also set up RRC and are connected.
Fig. 3 comprises the steps: for the handling process that CN in the emergent call processing method in the realization WCDMA of the present invention system carries out the priority configuration to urgent call
Step S301, CN receive the call management service request message of UE;
Step S302, CN judges whether it is urgent call according to the COS in the request message, if execution in step S303, otherwise execution in step S304;
Step S303, CN are the highest priority 1 of RAB configuration of this urgent call, and initiate RAB to RNC and set up request message;
Step S304, CN initiates RAB to RNC and sets up request message according to the priority of user's CAMEL-Subscription-Information configuration RAB.
Fig. 4 comprises the steps: for RNC in the emergent call processing method in the realization WCDMA of the present invention system is the handling process of urgent call Resources allocation
Step S401, the RAB that RNC receives CN sets up request message;
Step S402, RNC judge whether the priority of RAB is 1, if execution in step S403, otherwise execution in step S406;
Step S403, RNC are this RAB connection request application downgoing channelized codes resource, have judged whether idle downgoing channelized codes resource, if there is not execution in step S404, otherwise execution in step S405;
Step S404, several call out its release RNC greater than selection 1 the calling from all priority; At this, the present invention selects the minimum calling of Release priority power, when to have priority be 15 calling, discharges this calling; Simultaneously can not satisfy the urgent call resource needed, may need to discharge a plurality of because might discharge the resource that a calling obtains;
Step S405, RNC are urgent call allocation of downlink channelization code resource, set up radio bearer;
Step S406, the RAB that carries out general calling sets up flow process, and distributing radio resource is also set up radio bearer.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1, the emergent call processing method in a kind of WCDMA system, the urgent call that is used to handle the voice and packet data concurrent service of WCDMA is handled, and it is characterized in that core net is the priority that the RAB of described urgent call is provided with highest level.
2, the emergent call processing method in the WCDMA according to claim 1 system is characterized in that, specifically may further comprise the steps:
Step 1, radio network controller are handled the wireless resource control connection request of described urgent call;
The priority that step 2, described core net dispose the RAB of described urgent call is highest level;
Step 3, radio network controller are described urgent call Resources allocation, set up radio bearer.
3, the emergent call processing method in the WCDMA according to claim 2 system is characterized in that described step 1 specifically may further comprise the steps:
Step 11, described radio network controller receive the Radio Resource control connection of described urgent call and set up request message;
Step 12, described radio network controller are that the described Radio Resource control connection of described urgent call is set up request application downgoing channelized codes resource and set up the Radio Resource control connection;
Wherein, when the downgoing channelized codes resource had the free time, described radio network controller directly was described urgent call allocation of downlink channelization code resource, and sets up the Radio Resource control connection; During the downgoing channelized codes resource congestion, described radio network controller discharges a priority and is lower than the calling of the priority of described urgent call, and is described urgent call allocation of downlink channelization code resource, sets up the Radio Resource control connection.
4, the emergent call processing method in the WCDMA according to claim 3 system, it is characterized in that, during the downgoing channelized codes resource congestion, described radio network controller discharges the calling that the existing call medium priority is minimum, and be described urgent call allocation of downlink channelization code resource, set up the Radio Resource control connection.
5, according to the emergent call processing method in claim 2 or the 3 described WCDMA systems, it is characterized in that described step 3 specifically may further comprise the steps:
Step 31, described radio network controller receives from the RAB of the described urgent call of described core net and sets up request message;
Step 32, described radio network controller are that the described RAB of described urgent call is set up request application downgoing channelized codes resource and set up radio bearer;
Wherein, when the downgoing channelized codes resource had the free time, described radio network controller directly was described urgent call allocation of downlink channelization code resource, and sets up radio bearer; During the downgoing channelized codes resource congestion, described radio network controller discharges the calling that at least one priority is lower than the priority of described urgent call, and is described urgent call allocation of downlink channelization code resource, sets up radio bearer.
6, the emergent call processing method in the WCDMA according to claim 5 system, it is characterized in that, during the downgoing channelized codes resource congestion, described radio network controller discharges the minimum calling of at least one existing call medium priority, and be described urgent call allocation of downlink channelization code resource, set up radio bearer.
7, the emergent call processing method in the WCDMA according to claim 6 system is characterized in that described highest level priority is 1 grade, and minimum level priorities is 15 grades.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2005100413857A CN1909718B (en) | 2005-08-03 | 2005-08-03 | Method for urgent call handling in WCDMA system |
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| CN2005100413857A CN1909718B (en) | 2005-08-03 | 2005-08-03 | Method for urgent call handling in WCDMA system |
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| CN1909718A true CN1909718A (en) | 2007-02-07 |
| CN1909718B CN1909718B (en) | 2010-08-18 |
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| WO2009097818A1 (en) * | 2008-02-03 | 2009-08-13 | Huawei Technologies Co., Ltd. | Method, device and system for providing emergency access for user device |
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| CN102333297A (en) * | 2011-09-22 | 2012-01-25 | 中兴通讯股份有限公司 | Concurrent service processing method and mobile terminal |
| WO2012009896A1 (en) * | 2010-07-23 | 2012-01-26 | 中兴通讯股份有限公司 | Method for implementing priority based call access |
| CN101583111B (en) * | 2008-05-14 | 2012-11-14 | 中兴通讯股份有限公司 | Method and system for realizing network initiated urgent business |
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| JP4026118B2 (en) * | 2002-02-20 | 2007-12-26 | 日本電気株式会社 | Mobile terminal, emergency call management device, emergency call management system, and emergency call management method |
| FR2854756B1 (en) * | 2003-05-07 | 2005-08-12 | Evolium Sas | METHOD FOR ESTABLISHING CONNECTION IN A MOBILE RADIOCOMMUNICATION SYSTEM |
| US7565160B2 (en) * | 2003-11-07 | 2009-07-21 | Alcatel-Lucent Usa Inc. | System and method of handling prioritized wireless calls for mobile devices operating in an analog or TDMA mode |
| FR2863442B1 (en) * | 2003-12-04 | 2006-03-24 | Evolium Sas | METHOD OF PREDICTING RESOURCES OF A MOBILE COMMUNICATIONS NETWORK FOR A SERVICE BASED ON A MAXIMUM RATE OF PREEMPTION ASSOCIATED WITH |
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- 2005-08-03 CN CN2005100413857A patent/CN1909718B/en not_active Expired - Fee Related
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| CN101583111B (en) * | 2008-05-14 | 2012-11-14 | 中兴通讯股份有限公司 | Method and system for realizing network initiated urgent business |
| CN102026113A (en) * | 2009-09-22 | 2011-04-20 | 宏达国际电子股份有限公司 | Method of handling paging |
| CN102340753B (en) * | 2010-07-23 | 2016-03-30 | 中兴通讯股份有限公司 | A kind of method and system realizing call priority access |
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