CN101465808A - Method, device and system for controlling network PRI - Google Patents

Method, device and system for controlling network PRI Download PDF

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Publication number
CN101465808A
CN101465808A CNA2008102475851A CN200810247585A CN101465808A CN 101465808 A CN101465808 A CN 101465808A CN A2008102475851 A CNA2008102475851 A CN A2008102475851A CN 200810247585 A CN200810247585 A CN 200810247585A CN 101465808 A CN101465808 A CN 101465808A
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China
Prior art keywords
user terminal
priority
session
precedence information
request
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CNA2008102475851A
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Chinese (zh)
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CN101465808B (en
Inventor
谢潜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2008102475851A priority Critical patent/CN101465808B/en
Publication of CN101465808A publication Critical patent/CN101465808A/en
Priority to PCT/CN2009/074569 priority patent/WO2010081339A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/805—QOS or priority aware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Abstract

The embodiment of the invention relates to a network priority control method, a device and a system thereof; wherein the method includes the following steps: acquiring the priority information of a user terminal from a home subscriber server(HSS)after receiving a registration request from the user terminal; binding the priority information and the terminal information of the user terminal; searching for the bound priority information according to the terminal information of the user terminal, and setting aside bandwidth resource for the user terminal which has the highest priority according to the priority information. The PCSCF(Proxy Call Session Control Function)entity device comprises an acquisition module, a binding module and a resource management module. An IP multimedia subsystem comprises the PCSCF entity device and the HSS. The method, the device and the system can give priority to the requirements of the users with special needs to establish conversations and avoid that the conversation requests are rejected due to flux control, resource deficiency and other reasons, thus improving connection success ratio of the users with high priority and correspondingly improving the emergency response handling capability.

Description

Network priority control method, Apparatus and system
Technical field
The present invention relates to a kind of network priority control method, Apparatus and system, belong to the network communications technology.
Background technology
At existing IP Multimedia System (IP Multimedia Subsystem, IMS) in the network, control for priority mainly is by resource prioritization header field (Resource-Priority Header, be called for short: RPH) with resource prioritization header field (the Accept-Resource-Priority Header that accepts, be called for short: ARPH) define the high-priority service in the IMS network, trust terminal by core net and carry predefined resource prioritization, to realize processed corresponding service.
But adopting this method only is to carry out at the priority of different business, and can not carry out priority management at the user; And above-mentioned RPH and ARPH information lack higher confidence level all by the terminal appointment; And priority policy is only at Session initiation Protocol (Session Initial Protocol, be called for short: SIP) handle at terminal and sip server two ends, Proxy Call Session Control Function in the IMS network (Proxy-Call Session Control Function, be called for short: PCSCF) entity apparatus and service call conversation control function (Serving-Call Session Control Function, be called for short: SCSCF) entity apparatus is not all handled above-mentioned RPH and ARPH information, therefore, intermediate path is handled the behavior of this information and is not determined that the behavior that load bearing equipment is reserved enough resources and bandwidth according to priority also can't be determined.Although PCSCF and SCSCF are called entity apparatus, can be used as a part of logic in the equipment in the time of specific implementation.
Because in the PCSCF entity apparatus is first entity apparatus that faces flow attack in the IMS network, and does not wherein comprise user data, therefore, when emergency takes place, can not guarantee the preferential access of high-priority users.For example, in disaster scenes such as earthquake or fire, a large amount of call attempt request meetings can occur, thereby cause the core net flow control, when the high capacity Flow Control occurring, can't ensure special personnel, as combat a natural disaster the jointing-success-rate of headquarter.
If user's priority data is set at PCSCF by force, priority definition according to access network type or IP address range configuration device level, then need the PCSCF entity apparatus to learn that in advance the IP address of which kind of network or which network segment need define high priority, therefore, the feasibility of enforcement is not high.
Summary of the invention
The invention provides a kind of network priority control method, can be in the IMS system clear and definite user's priority, thereby can preferentially guarantee the conversation switching of high-priority users.
To achieve these goals, one embodiment of the present of invention provide a kind of network priority control method, comprising:
After receiving the register requirement that comes from user terminal, (HomeSubscriber Server is called for short: the precedence information that HSS) obtains this user terminal from home subscriber server;
This precedence information is bound mutually with the end message of described user terminal;
Search mutually the precedence information of binding according to the end message of described user terminal, and be user terminal bandwidth resource with high priority according to this precedence information.
To achieve these goals, an alternative embodiment of the invention provides a kind of PCSCF entity apparatus, comprising:
Acquisition module, be used to receive the register requirement that comes from user terminal after, obtain the precedence information of this user terminal from HSS;
Binding module, the precedence information that is used for acquisition module is obtained is bound mutually with the end message of described user terminal;
Resource management module is used for searching the described precedence information of being bound by binding module according to described end message, for having the user terminal bandwidth resource of high priority.
To achieve these goals, another embodiment of the present invention provides a kind of IP Multimedia System, comprising:
The PCSCF entity apparatus is used for obtaining the precedence information of this user terminal from HSS after receiving the register requirement that comes from user terminal; This precedence information is bound mutually with the end message of described user terminal; Search mutually the precedence information of binding according to the end message of described user terminal, and be user terminal bandwidth resource with high priority according to this precedence information;
HSS is used for the request according to described PCSCF entity apparatus, and the precedence information of searching relevant user terminals sends to described PCSCF entity apparatus.
Pass through embodiments of the invention, the PCSCF entity apparatus can obtain the precedence information of user terminal, therefore, when bandwidth resources are taken in a large number and can't be inserted called network, the PCSCF entity apparatus can be according to the precedence information of its acquisition, make user terminal preferentially insert called network with higher priority, set up session, thereby can be in emergency circumstances at earthquake or fire etc., preferentially satisfy some user that specific demand is arranged and set up the demand of session, avoided being rejected, improved the jointing-success-rate of these high-priority users, the also corresponding ability that improves emergency processing because of reasons such as flow control or inadequate resource cause conversation request.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the flow chart of the inventive method embodiment one described network priority control method;
Fig. 2 is the flow chart of the inventive method embodiment two described network priority control methods;
Fig. 3 is the signaling process figure of registration process in the inventive method embodiment two described network priority control methods;
Fig. 4 is the data structure schematic diagram of the user model after the inventive method embodiment two described expansions;
Fig. 5 is the signaling process figure of resource race to control process in the inventive method embodiment two described network priority control methods;
Fig. 6 is the flow chart of the inventive method embodiment three described network priority control methods;
Fig. 7 is the signaling process figure of resource reservation process in the inventive method embodiment three described network priority control methods;
Fig. 8 is the structural representation of apparatus of the present invention and system embodiment one described IP Multimedia System;
Fig. 9 is the structural representation of resource management module 13 in apparatus of the present invention and the system embodiment two described IP Multimedia System;
Figure 10 is the structural representation of resource management module 13 in apparatus of the present invention and the system embodiment three described IP Multimedia System.
Embodiment
Method embodiment one
Present embodiment provides a kind of network priority control method, as shown in Figure 1, comprises the steps:
Step 101, receive the register requirement that comes from user terminal after, obtain the precedence information of this user terminal from HSS;
Particularly, can (Access GatewayControl Function, be called for short: AGCF) entity apparatus obtains the precedence information of this user terminal from HSS by the SCSCF entity apparatus by PCSCF entity apparatus or AGCF.PCSCF entity apparatus or AGCF entity apparatus are referred to as the PCSCF entity apparatus among the application.
Step 102 is bound this precedence information mutually with the end message of described user terminal; Wherein, end message can be the identification information or the access information of user terminal, identification information can for IP multimedia public identify (IP Multimedia Public Identity, be called for short: IMPU), used IP address when access information can insert for this user;
Step 103 is searched mutually the precedence information of binding according to the end message of described user terminal, and is the user terminal bandwidth resource with high priority according to this precedence information.
Particularly, can be before receiving the conversation request that this user terminal with high priority initiates bandwidth resource; Also can after the conversation request that receives this initiation of user terminal with high priority,, keep for the user terminal of this high priority from setting up the user terminal bandwidth-hogging resource of session.
By the described method of present embodiment, PCSCF entity apparatus or AGCF entity apparatus can obtain the precedence information of user terminal, therefore, when bandwidth resources are taken in a large number and can't be inserted called network, can be according to the precedence information of its acquisition, make user terminal preferentially insert called network with higher priority, set up session, thereby can be in emergency circumstances at earthquake or fire etc., preferentially satisfy some user that specific demand is arranged and set up the demand of session, avoided being rejected, improved the jointing-success-rate of these high-priority users, the also corresponding ability that improves emergency processing because of reasons such as flow control or inadequate resource cause conversation request.
Need to prove in addition, when described user terminal is nullified successfully on network, be the PCSCF entity apparatus receive network side and send cancellation success response (REGISTER 200OK) message the time, the local user data of preserving of deletion wherein comprises the precedence information of described user terminal.Receive the register requirement of user terminal once more with box lunch after, obtain the precedence information of this user terminal again from HSS.
Method embodiment two
Present embodiment provides another kind of network priority control method, in the present embodiment, exist first user terminal in network, to have set up session, and the PCSCF entity apparatus has obtained the precedence information of first user terminal that first user terminal obtains from HSS in registration process.As shown in Figure 2, comprise the steps:
Step 201 after the PCSCF entity apparatus receives the register requirement that comes from second user terminal, is obtained the precedence information of this user terminal from HSS;
Further, the PCSCF entity apparatus can obtain the precedence information of this user terminal by the SCSCF entity apparatus from HSS.
Step 202 is bound this precedence information mutually with the end message of described second user terminal;
After step 203, PCSCF entity apparatus receive the conversation request of being initiated by second user terminal,, search the precedence information of second user terminal of binding mutually according to the end message of second user terminal that carries in this conversation request;
Step 204 compares the priority of second user terminal and the priority of described first user terminal, when the priority of second user terminal is higher, is this second user terminal bandwidth resource to the load bearing equipment request;
Step 205 if the bandwidth resources deficiency then selects the session of first user terminal to remove, discharges bandwidth resources;
Step 206 for described second user terminal distributes bandwidth resources, is set up session.
Below describe by concrete signaling process, as shown in Figure 3:
(1-1) a certain user terminal is to load bearing equipment, and (Gateway GPRSSupporting Node, be called for short: (Packet Data Protocol is called for short: PDP) context activation GGSN) to carry out packet data protocol as the gateway GPRS support node.
(1-2) above-mentioned user terminal is initiated register requirement (REGISTER) to the PCSCF entity apparatus.
(1-3) the PCSCF entity apparatus is initiated register requirement to the SCSCF entity apparatus.
(1-4) the SCSCF entity apparatus is initiated multimedia authentication request (Multimedia-Auth-Request, abbreviation: MAR) to HSS.
(1-5) HSS searches the corresponding subscription data of this user, and returns multimedia authentication to the SCSCF entity apparatus and reply (Multimedia-Auth-Answer, abbreviation: MAA), wherein carry the precedence information of this user terminal.
Particularly, can expand, as shown in Figure 4, be the user model after the expansion, wherein increase the data item of " priority (UserPriority): numeric type ", be used to show this user's priority original user model.The span of this priority can adopt mode as shown in table 1 to preestablish.
Table 1
Type name: User Priority (tUserPriority) Priority Numeric type Optional value: 0 (low priority) 1 (medium priority) 2 (high priority)
Need to prove herein, the span of listed priority in actual applications, also can be selected other numeric representation corresponding priority level for use in the present embodiment only as an example in the table 1, as long as can satisfy the needs that priority is divided, be not to limit herein.
Correspondingly, in user model, increased the data item of expression priority after, (eXtensible Markup Language, be called for short: XML) respective change also can take place to the concrete extend markup language when HSS returns MAA in code.For example, as follows:
<？xml?version＝＂1.0＂encoding＝＂UTF-8＂？>
<IMSSubscription>
<PrivateID>impi001@home1.com</PrivateID>
<ServiceProfile>
<PublicIdentity>
<BarringIndication>0</BarringIndication>
<UserPriority>2</UserPriority>
<Identity>sip：impu001@home1.com</Identity>
</PublicIdentity>
</ServiceProfile>
</IMSSubscription>
Wherein, the extend information of line part shows that promptly the priority of carrying among the MAA that HSS returns is " 2 ", represents that promptly this user is high-priority users.
(1-6) the SCSCF entity apparatus obtains precedence information from MAA, and this precedence information is carried in the registration reply (REGISTER 200) sends to the PCSCF entity apparatus; For example, can in registration reply, represent that with expansion header field " P-UserPriority=Hi " this user has the high priority of network authorization.
(1-7) the PCSCF entity apparatus obtains precedence information from registration reply, and this precedence information is bound mutually with the end message of this user terminal.
(1-8) the PCSCF entity apparatus is replied accreditation verification (REGISTER 200) to the priority users terminal, shows to register to finish.
Suppose had first user terminal to set up session, taken bandwidth resources with called network.At this moment, at some in particular cases, for example, when disaster such as fire or earthquake took place, emergency command personnel etc. also asked to insert called network as high-priority users by second user terminal, wherein first user terminal and second user terminal are registered by the signaling procedure of aforementioned (1-1)～(1-8), its corresponding priority level information has been stored in the PCSCF entity apparatus in advance, as shown in Figure 5, and the following signaling procedure of concrete execution this moment:
(1-9) second user terminal is to PCSCF entity apparatus initiate a session request (INVITE).
(1-10) the PCSCF entity apparatus is according to the access information or the identification information of second user terminal that carries in this conversation request, search the precedence information of second user terminal, the priority of second user terminal and the priority of first user terminal are compared, when the priority of second user terminal is higher, precedence information with second user terminal searched, for example " P-UserPriority=Hi ", be carried in the above-mentioned conversation request, before be given to the SCSCF entity apparatus, want priority treatment to show this conversation request.
Otherwise, if the priority of second user terminal unlike the priority height of first user terminal, and has not currently had enough bandwidth resources then to refuse the conversation request of second user terminal for dividing a timing.
(1-11) the SCSCF entity apparatus conversation request that will carry the precedence information of second user terminal is given to called network before further.
(1-12) called network to the SCSCF entity apparatus reply Session Description Protocol (SessionDescription Protocol, be called for short: SDP) message, as response message.
(1-13) the SCSCF entity apparatus is given the PCSCF entity apparatus with above-mentioned SDP message forwarding.
(1-14) result of the media capability negotiation of the terminal of being finished according to above-mentioned (1-11) to (1-12), the PCSCF entity apparatus is to load bearing equipment request bandwidth resource, and the response that GGSN replys shows load bearing equipment bandwidth deficiency.
(1-15) select the session of first user terminal to remove, discharge bandwidth resources by the PCSCF entity apparatus.
It needs to be noted herein, first user terminal described in the present embodiment might not have only a user terminal, also may be a plurality of user terminals, when session is removed, can be in the already present session in this locality by the PCSCF entity apparatus, according to default selection strategy, the session of selecting priority to be lower than the priority of second user terminal is removed.When the strategy of selecting can be considered to satisfy the second high user terminal of priority and sets up session, to the demand of bandwidth resources, specific strategy can be with reference to following information:
(a) priority
For example, in priority be " in " session and priority in the session of " low ", preferentially selecting priority is the session of " low ";
(b) duration of call
For example, preferentially select the air time to surpass 3 minutes session;
(c) occupied bandwidth
For example, preferentially select the bigger session of shared bandwidth, thereby help removing less session, reclaim more bandwidth resources;
(d) Tong Hua opposite end feature
For example, the preferential session of selecting to relate to hotline;
In addition, in order to reduce as far as possible to setting up the influence of session, rise to the success rate of high-priority users terminal distribution bandwidth resources, in this step, the PCSCF entity apparatus can also be replied to second user terminal and be retransmitted Indication message, as No. 488 message, adopt littler bandwidth to initiate a session request again to indicate second user terminal, return then and carry out above-mentioned steps (1-10).
(1-16) the PCSCF entity apparatus sends session teardown message (BYE) to the SCSCF entity apparatus, is removed to show its selected session.
In addition, the PCSCF entity apparatus can also send the playback Indication message to the SCSCF entity apparatus, carry reason (Reason) header field, be used to indicate SCSCF entity apparatus or relevant application server (Application Server, be called for short: AS), tear the words reason open with prompting to being removed the pairing first user terminal playback of session.
(1-17) the PCSCF entity apparatus sends session teardown message (BYE) to corresponding first user terminal of selected session, to remove the session of this user terminal well afoot.
Be that second user terminal distributes bandwidth resources (1-18), set up session.
Before the session of second user terminal was not set up as yet, the PCSCF entity apparatus can be refused the conversation request of other low priority user terminals temporarily, is resumed with the resource of avoiding having discharged.After session is set up, the Calling Side user terminal carries out interactive communication with the callee side user terminal that is positioned at called network, in order to guarantee that the session data of callee side user terminal is successfully handled, can be this callee side user terminal bandwidth resource also according to said method.
(Quality of Service is called for short: QoS) authentication (Authorise) (1-19) to carry out quality of service between GGSN and the PCSCF entity apparatus.
(1-20) the PCSCF entity apparatus sends to second user terminal and carries 183 response messages of SDP message, shows that session sets up.
By the described method of present embodiment, when bandwidth resources are taken in a large number and can't be inserted called network, user terminal with higher priority can be from setting up the low priority user end of session, the bandwidth-hogging resource, insert called network by force, set up session, thereby can be in emergency circumstances at earthquake or fire etc., preferentially satisfy some user that specific demand is arranged and set up the demand of session, avoided being rejected because of reasons such as flow control or inadequate resource cause conversation request, improved the jointing-success-rate of these high-priority users, the also corresponding ability that improves emergency processing.
Method embodiment three
Present embodiment provides another kind of network priority control method, and in the present embodiment, the user terminal with high priority does not initiate a session request as yet, as shown in Figure 6, comprises the steps:
Step 301 after the PCSCF entity apparatus receives the register requirement that comes from user terminal, is obtained the precedence information of this user terminal from HSS; Further, the PCSCF entity apparatus can obtain the precedence information of this user terminal by the SCSCF entity apparatus from HSS.
Step 302 is bound this precedence information mutually with the end message of described user terminal;
Step 303, before receiving the conversation request of being initiated by described user terminal with high priority, described PCSCF entity apparatus has the user terminal bandwidth resource of high priority to the load bearing equipment request for this.
Step 304 if the bandwidth resources deficiency of described load bearing equipment then selects the session of the user terminal set up to remove, discharges bandwidth resources.
Step 305 is after having discharged enough bandwidth resources, for described user terminal with high priority distributes bandwidth resources.
Below describe by concrete signaling process, registration process wherein is identical with (1-1)～(1-8) among the said method embodiment two, repeats no more herein.In addition, height before initiating a session request, as shown in Figure 7, can also comprise following signaling process after preferentially finishing registration with a level family terminal:
(2-9) the PCSCF entity apparatus is to load bearing equipment request bandwidth resource, if the bandwidth resources of this moment can satisfy the session demand of above-mentioned high-priority users terminal, then load bearing equipment directly is this high-priority users terminal bandwidth resource; Otherwise, if the bandwidth resources deficiency of load bearing equipment; Then continue execution in step (2-10).
(2-10) select the session of the user terminal set up to remove, discharge bandwidth resources.Concrete selection strategy can reference method embodiment two content, repeat no more herein.
(2-11) the PCSCF entity apparatus sends session teardown message (BYE) to the SCSCF entity apparatus, to remove its selected session.
By the described method of present embodiment, before initiating a session request, user terminal just directly reserved the required bandwidth of session for the high-priority users terminal, even the low priority user terminal is set up session prior to the high-priority users terminal request, also can not take the bandwidth resources of reservation, therefore, need not the bandwidth-hogging resource, can guarantee effectively that promptly the high-priority users terminal of specific demand sets up the demand of session, further improved the ability of emergency processing.
System and device embodiment one
Present embodiment provides a kind of IP Multimedia System, as shown in Figure 8, comprises PCSCF entity apparatus 10 and HSS20.Its operation principle is specific as follows:
PCSCF entity apparatus 10 obtains the precedence information of this user terminal from HSS20 after receiving the register requirement that comes from user terminal; HSS20 is according to the request of described PCSCF entity apparatus, and the precedence information of searching relevant user terminals sends to described PCSCF entity apparatus 10; PCSCF entity apparatus 10 is bound this precedence information mutually with the end message of described user terminal; Search the precedence information of binding mutually according to the end message of user terminal, and according to this precedence information, for having the user terminal bandwidth resource of high priority.Further, PCSCF entity apparatus 10 can obtain the precedence information of this user terminal by the SCSCF entity apparatus from HSS20.
Wherein, PCSCF entity apparatus 10 specifically comprises acquisition module 11, binding module 12 and resource management module 13.Its operation principle is as follows:
Acquisition module 11 in the PCSCF entity apparatus 10 receives the register requirement that comes from user terminal, obtains the precedence information of this user terminal from HSS20; HSS20 is according to the request of PCSCF entity apparatus 10, and the precedence information of searching relevant user terminals sends to this PCSCF entity apparatus 10; The binding module 12 of PCSCF entity apparatus 10 is bound the precedence information that acquisition module 11 obtains mutually with the end message of described user terminal; Resource management module 13 is searched the described precedence information by binding module 12 bindings according to described end message, and for having the user terminal bandwidth resource of high priority.
Need to prove: after acquisition module 11 receives and comes from the register requirement of user terminal, can obtain the precedence information of this user terminal from HSS20 by the SCSCF entity apparatus herein.
By the described Apparatus and system of present embodiment, the PCSCF entity apparatus can obtain the precedence information of user terminal, therefore, when bandwidth resources are taken in a large number and can't be inserted called network, the PCSCF entity apparatus can be according to the precedence information of its preservation, make user terminal preferentially insert called network with higher priority, set up session, thereby can be in emergency circumstances at earthquake or fire etc., preferentially satisfy some user that specific demand is arranged and set up the demand of session, avoided being rejected, improved the jointing-success-rate of these high-priority users, the also corresponding ability that improves emergency processing because of reasons such as flow control or inadequate resource cause conversation request.
System and device embodiment two
Present embodiment provides another kind of IP Multimedia System, and its basic structure and system shown in Figure 8 are roughly the same.But in the present embodiment, exist first user terminal in network, to set up session, therefore correspondingly, as shown in Figure 9, resource management module 13 specifically comprises and searches unit 1311, comparing unit 1312, first request unit 1313, the first session teardown unit 1314 and first resource allocation unit 1315.The operation principle of resource management module 13 is as follows:
After receiving the conversation request of initiating by second user terminal when PCSCF entity apparatus 10, by searching the end message of unit 1311, search precedence information by second user terminal of binding module 12 bindings according to second user terminal that carries in this conversation request; Comparing unit 1312 compares the priority of second user terminal and the priority of first user terminal according to searching the described precedence information that unit 1311 finds; First request unit 1313 is according to the comparative result of comparing unit 1312, when the priority of second user terminal is higher, is this second user terminal bandwidth resource to the load bearing equipment request, and load bearing equipment wherein is specifically as follows GGSN; The first session teardown unit 1314 is when first request unit, 1313 request bandwidth resource, if the bandwidth resources deficiency then selects the session of first user terminal to remove, discharge bandwidth resources, concrete selection strategy can repeat no more referring to aforementioned approaches method embodiment herein; First resource allocation unit 1315 for described second user terminal distributes bandwidth resources, is set up session after the first session teardown unit 1314 discharges bandwidth resources.
By the described Apparatus and system of present embodiment, when bandwidth resources are taken in a large number and can't be inserted called network, user terminal with higher priority can be from setting up the low priority user end of session, the bandwidth-hogging resource, insert called network by force, set up session, thereby can be in emergency circumstances at earthquake or fire etc., preferentially satisfy some user that specific demand is arranged and set up the demand of session, avoided being rejected because of reasons such as flow control or inadequate resource cause conversation request, improved the jointing-success-rate of these high-priority users, the also corresponding ability that improves emergency processing.
System and device embodiment three
Present embodiment provides another kind of IP Multimedia System, and its basic structure is identical with system shown in Figure 8.But in the present embodiment, user terminal with high priority does not initiate a session request as yet, therefore correspondingly, as shown in figure 10, resource management module 13 specifically comprises: second request unit 1321, the second session teardown unit 1322 and second resource allocation unit 1323.The operation principle of resource management module 13 is as follows:
In binding module 12 with precedence information with after the end message of user terminal is bound mutually, receive before the conversation request of initiating by user terminal at PCSCF entity apparatus 10, have the user terminal bandwidth resource of high priority to the load bearing equipment request for this by second request unit 1321 with high priority; When second request unit, 1321 request bandwidth resource, if the bandwidth resources deficiency, then the session of the user terminal of having been set up by 1322 selections in the second session teardown unit is removed, and discharges bandwidth resources, concrete selection strategy can repeat no more referring to above-mentioned each method embodiment herein; Second resource allocation unit 1323 is after the second session teardown unit 1322 discharges bandwidth resources, for described user terminal with high priority distributes bandwidth resources.
By described device of present embodiment and system, before initiating a session request, user terminal just directly reserved the required bandwidth of session for the high-priority users terminal, even the low priority user terminal is set up session prior to the high-priority users terminal request, also can not take the bandwidth resources of reservation, therefore, need not the bandwidth-hogging resource, can guarantee effectively that promptly the high-priority users terminal of specific demand sets up the demand of session, further improved the ability of emergency processing.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (12)

1, a kind of network priority control method is characterized in that comprising:
After receiving the register requirement that comes from user terminal, obtain the precedence information of this user terminal from home subscriber server HSS;
This precedence information is bound mutually with the end message of described user terminal;
Search mutually the precedence information of binding according to the end message of described user terminal, and be user terminal bandwidth resource with high priority according to this precedence information.
2, network priority control method according to claim 1 is characterized in that first user terminal set up session in described network, and described is that the user terminal bandwidth resource with high priority comprises according to this precedence information:
After receiving the conversation request of initiating by second user terminal,, search the precedence information of second user terminal of binding mutually according to the end message of second user terminal that carries in this conversation request;
According to described precedence information, the priority of second user terminal and the priority of described first user terminal are compared, when the priority of second user terminal is higher, be this second user terminal bandwidth resource to the load bearing equipment request;
If described bandwidth resources deficiency then selects the session of first user terminal to remove, discharge bandwidth resources;
For described second user terminal distributes bandwidth resources, set up session.
3, network priority control method according to claim 2 is characterized in that described first user terminal is a plurality of user terminals, and the session of described selection first user terminal is removed and comprised:
Session according to the opposite end feature selecting relative users terminal of priority, the duration of call, occupied bandwidth or the conversation of described first user terminal is removed.
4, network priority control method according to claim 2 also comprises after it is characterized in that receiving the conversation request of being initiated by second user terminal:
Reply the repeating transmission Indication message to described second user terminal, be used to indicate described second user terminal to adopt littler bandwidth to initiate a session request again.
5, network priority control method according to claim 2, the session that it is characterized in that described selection first user terminal also comprises after removing:
Send the playback Indication message that carries the reason header field to service call conversation control function SCSCF entity apparatus, be used to indicate described SCSCF entity apparatus, tear the words reason open with prompting to being removed the pairing first user terminal playback of session.
6, network priority control method according to claim 1 is characterized in that described is that the user terminal bandwidth resource with high priority comprises according to this precedence information:
Before receiving the conversation request of initiating by described user terminal, has the user terminal bandwidth resource of high priority for this to the load bearing equipment request with high priority.
7, network priority control method according to claim 6 is characterized in that comprising for the user terminal bandwidth resource that this has high priority to the load bearing equipment request:
If the bandwidth resources deficiency of described load bearing equipment then selects the session of the user terminal set up to remove, discharge bandwidth resources;
For described user terminal with high priority distributes bandwidth resources.
8, according to arbitrary described network priority control method in the claim 1～7, it is characterized in that described end message comprises: the identification information of described user terminal or access information.
9, a kind of Proxy Call Session Control Function PCSCF entity apparatus is characterized in that comprising:
Acquisition module, be used to receive the register requirement that comes from user terminal after, obtain the precedence information of this user terminal from home subscriber server HSS;
Binding module, the precedence information that is used for acquisition module is obtained is bound mutually with the end message of described user terminal;
Resource management module is used for searching the described precedence information of being bound by binding module according to described end message, for having the user terminal bandwidth resource of high priority.
10, PCSCF entity apparatus according to claim 9 is characterized in that when first user terminal had established session, described resource management module comprised:
Search the unit, be used for after the PCSCF entity apparatus receives the conversation request of being initiated by second user terminal,, search precedence information by second user terminal of binding module binding according to the end message of second user terminal that carries in this conversation request;
Comparing unit is used for according to searching the described precedence information that the unit finds the priority of second user terminal and the priority of first user terminal being compared;
First request unit is used for the comparative result according to comparing unit, when the priority of second user terminal is higher, is this second user terminal bandwidth resource to the load bearing equipment request;
The first session teardown unit is used for when the first request unit request bandwidth resource, if the bandwidth resources deficiency then selects the session of first user terminal to remove, discharges bandwidth resources;
First resource allocation unit is used for for described second user terminal distributes bandwidth resources, setting up session after the first session teardown unit discharges bandwidth resources.
11, PCSCF entity apparatus according to claim 10 is characterized in that described resource management module comprises:
Second request unit, be used in binding module precedence information with after the end message of user terminal is bound mutually, before receiving the conversation request of initiating by user terminal, has the user terminal bandwidth resource of high priority for this to the load bearing equipment request with high priority;
The second session teardown unit is used for when the second request unit request bandwidth resource, if the bandwidth resources deficiency then selects the session of the user terminal set up to remove, discharges bandwidth resources;
Second resource allocation unit is used for after the second session teardown unit discharges bandwidth resources, for described user terminal with high priority distributes bandwidth resources.
12, a kind of IP Multimedia System is characterized in that comprising:
Proxy Call Session Control Function PCSCF entity apparatus is used for obtaining the precedence information of this user terminal from home subscriber server HSS after receiving the register requirement that comes from user terminal; This precedence information is bound mutually with the end message of described user terminal; Search mutually the precedence information of binding according to the end message of described user terminal, and be user terminal bandwidth resource with high priority according to this precedence information;
Home subscriber server HSS is used for the request according to described PCSCF entity apparatus, and the precedence information of searching relevant user terminals sends to described PCSCF entity apparatus.
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