CN1538767A - Method and device for realizing resource seizing based on priority of radio link - Google Patents

Abstract

The method includes such step as mobile user through RNC sends out request for building wireless link or reconfiguration; receiving the request, base station (NODE B) determines whether there is available resources of wireless link; if yes, building or reconfiguring wireless link; if no, determining whether there is preempted wireless link used by user with low priority; if yes, deleting wireless link used by user with low priority at side of base station; then, assigning the released resources of preempted wireless link to the side wireless link; if no, not triggering preempting procedure. the invention saves time of logging on network for users with high priority, making treatment of signaling flow become simple and easy.

Description

Realize the method and apparatus of resource race to control according to the priority of Radio Link

Technical field

The present invention relates to mobile communication, relate in particular to the apparatus and method that realize resource race to control according to the priority of Radio Link.

Background technology

RL (Radio Link) preemption processes be for the user of the user of urgent call or high priority under any circumstance can access network and a kind of strategy of realizing.3GPP provides a kind of strategy of selecting for the user, and the user who makes urgent call no matter when can access network, if network busy the time, and just can be by seizing the resource access network of other low priority user.In order to obtain Radio Link priority, need obtain Radio Link priority according to transmission channel priority, though and simply introduced the mapping of transmission channel priority on the present 3GPP agreement to Radio Link priority, but still have following technical deficiency:

1. inadequate resource may trigger RL and seizes under the situation that RL sets up or revises, but the deficiency of what resource of not saying so and the RL that triggers seizes.

2. if trigger the RL preemption processes in Node B side, then what the reason of Chu Faing is why.

3. do not have whole this RL of elaboration will satisfy what condition simultaneously and just can go to seize other RL resources of using (3GPP (third generation collaborative project) agreement is just simply introduced the information element of seizing).

4. the overall flow of how to go to seize many RL resources does not have detailed introduction.

5. timer Tpreempt does not specifically have clear and definite indication where setting with how to use of signaling process.

According to known to the inventor and the retrieval done of inventor, do not see the technical scheme of this function of disclosed realization as yet.Therefore, wish have a kind of apparatus and method to realize RL (Radio Link) preemption processes according to priority.

Summary of the invention

The objective of the invention is shortcoming, a kind of method and apparatus of realizing resource race to control according to the priority of Radio Link is provided at above-mentioned prior art.

Method of the present invention comprises step:

The mobile subscriber sends Radio Link by RNC and sets up or reconfiguration request;

Base station (NODE B) obtains described request, judges whether available air-link resources;

If have, set up or reconfiguring radio link;

If no, judge whether to have the Radio Link that preemptible is used by low priority user;

If have, delete the user's of described low priority Radio Link in described base station side;

The resource allocation that the Radio Link that will be seized discharges uses for described Radio Link;

If no, do not trigger the Radio Link preemption processes.

Alternatively, the described step that judges whether to have the Radio Link that preemptible uses by low priority user comprises at least and judges whether to satisfy one of three conditions: (1) judges whether this mobile subscriber's RL has the user that the ability of seizing (2) judges that described base station needs are seized and whether judge than described mobile subscriber's priority low (3) whether its Radio Link of user that described base station needs are seized can be seized;

The step of the user's of the described low priority of described deletion Radio Link also comprises: seize the Radio Link of indicating notice RNC to be seized by Radio Link and delete.

Preferably, described air-link resources comprises local atm link and Radio Resource

Alternatively, described atm link resource comprises local AAL2 (ATM Adaptation Layer type 2) link circuit resource.

Preferably, whether have the low and step low priority user that its Radio Link can be seized of priority than described mobile subscriber to comprise among the described user who judges described base station services:

Obtain these users and pairing all dedicated transmission channels of these users (DCH) information that described base station services has taken required resource;

Go out user's priority and whether can be seized according to the information mapping of described dedicated transmission channel.

Alternatively, the described step of obtaining the information of dedicated transmission channel comprises: obtain one of following information of described channel at least:

Priority Level (priority level);

Pre-emption Capability (seizing ability); With

Pre-emption Vulnerability (being seized ability).

Preferably, described information mapping according to described dedicated transmission channel (DCH) goes out user's priority and the step that whether can be seized comprises:

As long as there is a DCH to be set to and can to seize, described RL just has preemption function;

Can not be seized as long as there is a DCH to be provided with, this RL just can not be seized;

Select the priority level of the priority of a DCH that priority is the highest as described RL.

Alternatively, described to set up described Radio Link be that described mobile subscriber's step also comprises: RNC (radio network controller) is that described Radio Link is set up corresponding AAL2 (ATM Adaptation Layer type 2) link according to the response message of setting up of described Radio Link by ALCAP (Access Link Control Application Protocol) agreement.

Preferably, the step of the resource seized of described release comprises: give RNC the deleted Radio Link that falls by RLPREEMPTION REQUIRED INDICATION (Radio Link is seized the request indication) message report; RNC receives this message, obtains corresponding user ID, discharges the resource of these users at the Iu interface, sends RABRELEASE REQUEST (RAB discharges request) message and carries out a series of resource dispose procedure to CN (core net).

Alternatively, also comprise step: judgement waits for whether the d/d timer of resource (Tpreempt) is overtime, if overtime, sends RL SETUPFAILURE (Radio Link is set up failure) message to RNC, reports described Radio Link foundation or reconfiguration failure; If not overtime, proceed dispose procedure, if before timer expiry, the resource of being seized can be released, RL sets up or reconfiguration course just will be proceeded.

A kind of priority according to Radio Link of the present invention realizes the device of resource race to control, and wherein, mobile subscriber's machine comprises R-T unit, is used for sending Radio Link to the base station and sets up request and receive signal of base station, and described device comprises:

Base station transmitting/receiving device is used to obtain described Radio Link and sets up request message,

Judgment means: be used to judge whether this mobile subscriber's resource needed of described base station all is idle resource,

Described judgment means also comprises the priority judgment means, be used to judge take these users of the required resource of this mobile subscriber in described base station all whether the priority than described mobile subscriber is low, and its Radio Link can be seized,

The link releasing device is used to cut off the user's that described low priority and its Radio Link can be seized Radio Link,

The link establishment device is used for setting up Radio Link when having available resources;

Wherein, described judgment means also comprises:

Deriving means is used to obtain described base station services and has taken these users of the required resource of this mobile subscriber and the information and the physic channel information of pairing all dedicated transmission channels of these users;

Whether mapping device is used for information mapping according to described dedicated transmission channel and goes out user's priority and can be seized.

Utilize the present invention, directly discharge the RL and the related resource thereof of occupied resource in Node B side, save the time of high-priority users access network, and made the processing of signaling process become simple and realization easily, really reached the implementation of seizing a plurality of user resources.

Description of drawings

Fig. 1 is that the RL of embodiments of the invention sets up the realization flow figure that seizes that process triggers;

Fig. 2 has described the flow chart of the dedicated process of seizing of the triggering resource of embodiments of the invention;

Fig. 3 has described the d/d flow chart of RL resource that the quilt of embodiments of the invention is seized;

Fig. 4 has described the flow chart of the later processing of the timer expiry of embodiments of the invention.

Embodiment

Implement and understand the present invention for the ease of persons skilled in the art, describe method and apparatus of the present invention with reference to accompanying drawing by embodiment respectively below.

Can at first will solve three problems: where this function of seizing realize in order to realize realizing according to the priority of Radio Link the apparatus and method of resource race to control? do you how to determine this user's priority level? cannot and the resource that can seize which user's resource and which user be seized?

At first, this function of seizing realizes at base station node B in the present invention, this be because:

1, determining that the needed information of this wireless links priority is all preserved in Node B maybe can obtain, can determine the priority level of this RL (Radio Link) fully according to these information Node B, and Node B has write down the information of all Radio Resources of this base station and wire transmission resource, so whether Node B can determine whether and need seize can seize.

2, alleviate the load that RNC handles, increased the flexibility of handling, make preemptive policy become simple.

Secondly, how to determine this user the priority level of corresponding RL? Radio Link Determination of priority method is to be determined to the mapping of Radio Link priority by the priority of transmission channel.A user has one or more dedicated transmission channel (DCH), and information (Allocation/Retention Priority) (priority of distribution/reservation) of following these relevant priority are all arranged below each DCH: their precedence information all comprises three IE (information element):

Priority Level (priority level): it is an integer type, and the scope of value is 0-15.

Pre-emption Capability (seizing ability): be enumeration type, two values are arranged: shall not trigger pre-emption (can not trigger and seize), maytrigger pre-emption (can trigger and seize), whether the sign link can trigger preemption processes is just said that also this link is to have the ability of seizing other users is not arranged.

Pre-emption Vulnerability (being seized ability): enumeration type has two values: not pre-emptable (can not be seized), pre-emptable (can be seized), whether the sign link can be seized by other user.

Three top IE are characteristics that each DCH (dedicated transmission channel) has, and are mapped to the regular as follows of RL priority:

As long as there is a DCH to be set to and can to seize, this RL just has preemption function, just will be set to may triggerpre-emption by IE Pre-emption Capability.Can not be seized as long as there is a DCH to be provided with, this RL just can not be seized, and just will be set to notpre-emptable by IE Pre-emption Vulnerability.In the present invention, select the priority level of the Priority Level IE of a DCH that priority is the highest as this RL.

Article one, RL has one or more of DCH, these DCH may carry a kind of or multiple business is arranged, the RL priority of calculating according to above-mentioned rule just can reflect the importance of this business or this user's authority, if this business is extremely important, network side just can be provided with this RL (mapping back) and can not be seized, even if there be the user higher than this RL priority can not seize this user's resource.If this business is not very important, network side just can be provided with this RL (mapping back) and can be seized.So just can make network configuration more flexible, the chance that the user selects is more.

Embodiments of the invention have been described in base station side and have been realized that whole RL seizes the method for flow process.At first will solve two problems: RNC (radio network controller) just must this judge whether resource is idle when giving the RL Resources allocation, can deliberately distribute occupied resource? why not RNC initiatively requires to discharge the resource of desiring to seize earlier, will seize indication? and wait Node B to send because RNC grasps the operating position of relevant radio channel resource among each NODE B, if in the user resource allocation wireless resource conflict is being arranged, RNC can not distribute generally speaking.When resource was nervous, RNC can determine the RAB (RAB) of high priority will seize the Radio Link that low priority RAB takies, and RNC can discharge the Radio Link that low priority RAB uses earlier, and then distributed to the RAB of high priority.So think that in present stage the deficiency of Radio Resource can initiate to seize in the RNC side.Because at the emphasis that flow process is not a this patent of seizing of RNC realization, so introduce no longer in detail.

In an embodiment of the present invention, when has Node B initiated preemption processes? because local ATM (asynchronous transfer mode) link distributes in Node B, in foundation or reprovision RL, need be that the DCH among the RL that sets up distributes atm link.When the dedicated transmission channel to RL is configured, need the NBAP signaling processing module to distribute to unique ATM hyphen in home cell of transmission channel.And need notify FP (Frame Protocol) module with the corresponding relation of ATM hyphen and transmission channel and the configuration parameter of transmission channel, so that FP carries out descending frame and the up framing separated.The atm link of dedicated transmission channel correspondence needs the NBAP signaling processing module to carry out dynamic assignment.RL delete procedure in NBAP (the Node B applying portion) process, asynchronous RL reprovision process, synchronous RL reprovision submit to process can discharge atm link, and the RL that the atm link that discharges can continue as other users uses.

The atm link that distributes is exactly local transfer resource, each the bar atm link that distributes for these DCH all has an ATM hyphen, these ATM hyphens (hyphen of AAL5) and Binding ID (binding logo) corresponding one by one (corresponding relation of these ATM hyphens and Binding ID has just been determined in Node B system initialization).When having enough atm links to distribute, just tell RNC the BindingID of these atm link correspondences, according to the Binding ID of DCH correspondence, RNC just can distribute the AAL2 (ATM Adaptation Layer type 2) of respective rate to connect.So RNC uses the data of AAL2 carrying DCH to arrive after the Node B, according to Binding ID, Node B will set up AAL2 and connect the corresponding relation that is connected with AAL5 (ATM Adaption Layer Type 5), because the FP of Node B has stored the hyphen of the pairing AAL5 of each bar DCH, so FP just knows that it is the data of which bar DCH that this AAL5 connects institute's data carried by data, like this FP of Node B just can normal process RNC by DCH data that AAL2 carried.Do not have suitable idle ATM resource if Node B distributes at the RL for foundation when local ATM connects, just might trigger the RL preemption processes, its reason is: 1. the local AAL5 connection that distributes for DCH is distributed by Node B.2.Node the corresponding relation RNC of local AAL5 hyphen of B and Binding ID is ignorant.

The dedicated process of the signaling process that can seize by triggering, as: RL sets up, and RL increases and the RL reconfiguration course, and the resource of seizing has local transfer resource (atm link), or the Radio Resource (RU) of this locality.The RL that sends over for RNC sets up or reconfiguration message now, judges through Node B and finds needed Radio Resource deficiency, and Node B has two kinds of processing schemes usually:

1. set up the code channel conflict is arranged in the request message really if detect RL that RNC sends at Node B, present stage can be thought a kind of unusual, does not trigger to seize flow process and directly return to RL of RNC and set up failed message.Because think that now RL that RNC sends over sets up and reconfiguration message can not hint that Node B carries out seizing of RL, because RNC RNC in Resources allocation thinks that resource enough distributes.

2.RNC RNC thinks that resource enough distributes in Resources allocation, and when Node B judges, find the Radio Resource deficiency, this moment, Node B may trigger the Radio Link preemption processes, triggered " Radio Link is seized " process in Node B side, and this can be used as RNC and seizes replenishing of scheme.

In an embodiment of the present invention, Node B side is found to lay particular emphasis on the employing first method when Radio Resource is not enough, but second method also can be considered when being necessary.

Embodiments of the invention can trigger the resource of seizing many RL.This will introduce in detail at the lower part of this paper.In an embodiment of the present invention, be the example whole flow process introducing RL and seize (because the RL that RL increases and the RL reconfiguration course triggers seizes realization flow similar, so just do not introduced one by one) with RL seizing of setting up that process triggers.

Fig. 1 is that the RL of embodiments of the invention sets up the realization flow figure that seizes that process triggers.This flow chart has been described the flow process that UE2 (subscriber equipment 2) seizes the resource of UE1, and wherein, UE2 has the priority that is higher than UE1.Because UE2 will carry out the switching between RRC (Radio Resource control) connection foundation or base station, RNC initiates RL to Node B and sets up request message, if this RL that sets up does not have local resource (RL is occupied fully) and satisfies the ability of seizing, seize the RL of low priority on the one hand at Node B, by the resource seized Node B be released finish after, RL sets up process and proceeds at Node B, and RL reports to RNC after setting up and finishing.RNC receives that RL sets up after the response message, just can set up corresponding AAL2 link for this RL by the ALCAP agreement.On the other hand owing to deleted in Node B side, give RNC the deleted RL that falls by RL PREEMPTIONREQUIRED INDICATION (Radio Link is seized the request indication) message report by the RL that seized.RNC receives after this message, find the pairing user ID of these RL, RNC will initiate RAB RELEASE REQUEST (RAB discharges request) message or IU RELEASE REQUEST (Iu discharges request) message (reason of release is: " RAB seizes ") to core net.Core net receive this message will carry out Iu dispose procedure (CN discharges Iu and connects and discharge Iu and be connected relevant all UTRAN (Universal Terrestrial Radio Access Network) resource).After the Iu connection discharges and finishes, RNC will discharge UE and be connected (just will carry out RRC and connect release, the UE of release connection and the RL that will seize are one to one) with the signaling of RNC.The RRC that meanwhile finishes high-priority users connects the process of setting up.In general, when UE2 needs the RL resource, send request, if NODE B finds not have operable RL, NODE B will judge that present which user's of user in use RL can be seized according to priority, in an embodiment of the present invention, UE1 is the user that the low and resource its use of priority satisfies the requirement of UE2, therefore, NODE B will provide the resource of former UE1 use to UE2, in application, two kinds of methods can be arranged, the one, directly disconnect UE1 and without previous notice UE1, in the present invention, for the requirement of specific UE2, as fire alarm etc., or the priority of UE2 just takes this way when being higher than the predetermined magnitude of UE1, and the advantage of doing like this makes the access network that the user of high priority can be as early as possible.The 2nd, notify UE1 earlier, short then opening, this can make UE1 feel that user interface is friendly, as notifies user 1: because there is the urgency communication requirement in system, will interrupt your communication.

In this embodiment, at Node B is that UE2 carries out finding the local resource deficiency when RL sets up, judge whether to trigger and seize, if can just at first discharge the RL resource of the UE1 correspondence of being seized in Node B side, report to RNC then by the RL that Node B deletes, receive that RL seizes the later RNC of request Indication message and just can remove the AAL2 link of this RL correspondence by ALCAP (Access Link Control Application Protocol) agreement.The RAB resource of this RL correspondence is after the release of Iu interface is finished, since UE1 do not had RL (when the RL of UE1 after the deletion of Node B side is finished, this UE1 has not just had dedicated transmission channel), so can only passing through the corresponding Common transport channel of CCCH (Common Control Channel), RNC sends the RRC connection release message to UE1.

When setting up high priority RL, if there is not local resource, directly seize the RL of low priority at Node B, by the resource seized Node B be released finish after, RL sets up process and proceeds, report RNC after RL sets up and finishes, RNC receives that RL sets up after the response message, just can set up corresponding AAL2 link for this RL by the ALCAP agreement.

Be presented in Node B side processing RL below and seize flow process: Node B is mapped as the precedence information of DCH (dedicated channel) by the mapping ruler of RL priority the priority of this RL after receiving that RL sets up request message.Next judge whether the ATM connection that will distribute is taken by other user's RL, if occupied just user ID and the RL ID that takies these resources that in the NBAP resource management module, search, if the RL that these RL that find can be seized and priority ratio is set up is low, just begin the processing of preemption processes this time.

Set up process by RL the d/d timer of wait resource is set, then call and seize function and wait for being released of resource.After seizing function and being called, seize function according to transmitting the RL ID that needs are seized, search some necessary informations of needing deletion RL (time slot at Shan Chu RL place for example in the resource management module, CCTrCH ID etc.), after weaving, these information sets send to each subsystem of physical layer and FP module finding.If each subsystem of physical layer and the success of FP module these RL are deleted discharges the atm link that these RL take then in the NBAP resource management module, delete the resource of these RL corresponding physical channel occupancies and the information such as DCHs of these RL of deletion.Seize function these resources all discharge finish after, call on the one hand RL and set up and wait for the d/d function of resource, set up process by RL and come termination timing device and RL to set up flow process to proceed.Seizing function on the other hand organizes RL PREEMPTION REQUIRED INDICATION message to send to RNC.RNC receives after this message, according to RLID that indicates in this message and user ID, will delete these users' relevant information in the RNC side.At first delete the RL resource that need be seized in Node B side, and then tell these resources of RNC to be released in Node B side, RNC discharges these resources with regard to not needing to send RL deletion message.

Fig. 2 has described the flow chart of the dedicated process of seizing of the triggering resource of embodiments of the invention.Wherein, the resource management module of NBAP is positioned on the NBAP signalling module of Node B, and storage and the management of being responsible for the NBAP resource have functions such as configuration and inquiry.In this process, what need know is: physical channel resources and the ATM transfer resource stored on this sub-district are shared by which user's RL, and the pairing precedence information of these RL.Just can obtain these information by the query resource administration module, we also know and will set up shared code channel of RL and precedence information certainly, if initiate the RL preemption processes, so needed information has just all had.

Whether the reason that the precedence information of DCH is mapped to this RL precedence information: at last can initiate to seize is that precedence information according to this RL judges that the precedence information of DCH is not at that time just re-using if being.What judge whether to initiate to seize must satisfy following three conditions:

1) priority (Priority Level) that will set up RL is higher than the priority that takies this physical channel RL

2) RL that will set up has the ability of seizing other user, after just shining upon

The numerical value of RLIE:Pre-emption Capability is may triggerpre-emption

3) RL that takies this physical channel has the ability of being seized, just after the mapping

The numerical value of RLIE:Pre-emption Vulnerability is pre-emptable

Whether this that set up RL can trigger to seize just see whether these three conditions can satisfy simultaneously (note: the resource of public physic channel can not be seized), and this also becomes the key that can the RL preemption processes be initiated.If can not possess this three conditions simultaneously, will return RL and set up failure, failure cause can be an inadequate resource.

1. when the priority mapping of the DCHs of this RL became the precedence information of RL, the mapping scheme of these several dedicated process was slightly different:

1) to set up process be exactly that the DCHs information that RNC sends in the message is directly shone upon to RL.

2) RL increases process owing to do not have DCHs information in the message that RNC sends, so this RL that increases need obtain the DCHs information of the other RL that this user existed in the NBAP resource management module, shines upon as the DCHs information of this RL that increases.

3) asynchronous RL reshuffles and includes in the RL reconfiguration prepare message synchronously the DCHs of increase, the DCHs that revises and the DCHs of deletion, more complicated when carrying out the RL priority mapping, at first reconfiguration course is obtained this RL all DCHs information before reshuffling from the NBAP resource management module.If the DCHs of deletion is arranged in the reconfiguration message, just in these DCHs that obtain, deduct the DCHs of deletion, deleted DCHs no longer considers when shining upon; If the DCHs of modification and the change that these DCHs have precedence information are arranged in the reconfiguration message, just use the precedence information of revising later DCHs; If the DCHs of increase is arranged in the reconfiguration message, just directly use the precedence information of the DCHs that increases.So the precedence information of the DCHs that uses when carrying out the RL priority mapping at last is made up of three parts: the DCHs of increase, revised the DCHs precedence information DCHs, do not revise the former DCHs that pre-exists of DCHs precedence information, this three part is made up carries out the mapping of RL precedence information at last.It should be noted that the DCHs of the DCHs that deletes in the reconfiguration message and modification has necessarily preserved these DCHs in the NBAP module information, will return to the RNC failed message if in the NBAP module, can not find these DCH ID.If the DCH ID that increases in the reconfiguration message has existed these DCH ID also will return to the RNC failed message in the NBAP module.

2.RL setting up the invocation of procedure seizes just will delete before the function and timer Tpreempt is set before the RL that is seized waits for and seize the release of function to resource.Set up process termination timing device by RL when seizing function call RL and set up waiting for the d/d function of resource.The setting of rational position and termination timing device are key points of preemption processes.

Fig. 3 has described the d/d flow chart of RL resource that the quilt of embodiments of the invention is seized.Wherein, Node B will discharge shared ATM (AAL5) link of this RL when carrying out RL deletion Message Processing.RNC is after receiving the RLPREEMPTION REQUIRED INDICATION message that Node B sends over, and RNC just removes the AAL2 link of this CU.So far, all free out to the AAL2 link on the Iub interface, so just can use for other RL from the AAL5 link of Node B inside.

The RL that need be seized the user need delete at each subsystem of physical layer and FP module, and these RL are after physical layer and FP module are deleted successfully.Also need delete accordingly, the shared resource of these RL is deleted, so just guarantee the consistency of whole Node B resource at the NBAP resource management module.

After Node B has deleted success to the RL resource that need be seized, need tell RNC that the resource of these RL correspondences is deleted in the RNC side.RNC receives after the RL PREEMPTION REQUIRED INDICATION message that Node B sends over, and just knows the information that needs which user of deletion, needs the user number of deletion and the RL identification number of its correspondence because has indicated this message the inside.Need what users' of deletion RL, how much bar RL PREEMPTION REQUIREDINDICATION message Node B will send to RNC, because this message can only be indicated a RL under the user.

Fig. 4 has described the flow chart of the later processing of the timer expiry of embodiments of the invention.Wherein, if wait for that the d/d timer Tpreempt of resource is overtime, illustrate that the process of initiating to seize (RL sets up process) can not get enough resources in official hour, so can only send RL SETUP FAILURE message to RNC.

Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.

Claims (11)

1. realize the method for resource race to control comprising step according to the priority of Radio Link for one kind:

The mobile subscriber sends Radio Link by RNC and sets up or reconfiguration request;

Base station (NODE B) obtains described request, judges whether available air-link resources;

If have, set up or reconfiguring radio link;

If no, judge whether to have the Radio Link that preemptible is used by low priority user;

If have, delete the user's of described low priority Radio Link in described base station side;

The resource allocation that the Radio Link that will be seized discharges uses for described Radio Link;

If no, do not trigger the Radio Link preemption processes.

2. the method for claim 1, wherein, the described step that judges whether to have the Radio Link that preemptible uses by low priority user comprises: judge whether to satisfy one of three conditions at least: (1) judges whether this mobile subscriber's RL has the user that the ability of seizing (2) judges that described base station needs are seized and whether judge than described mobile subscriber's priority low (3) whether its Radio Link of user that described base station needs are seized can be seized;

The step of the user's of the described low priority of described deletion Radio Link also comprises: seize the Radio Link of indicating notice RNC to be seized by Radio Link and delete.

3, method as claimed in claim 1 or 2, wherein, described air-link resources comprises local atm link and Radio Resource

4, method as claimed in claim 3, wherein, described atm link resource comprises local AAL2 (ATM Adaptation Layer type 2) link circuit resource.

Whether 5, method as claimed in claim 1 or 2 wherein, has the low and step low priority user that its Radio Link can be seized of priority than described mobile subscriber to comprise among the described user who judges described base station services:

Obtain these users and pairing all dedicated transmission channels of these users (DCH) information that described base station services has taken required resource;

Go out user's priority and whether can be seized according to the information mapping of described dedicated transmission channel.

6, method as claimed in claim 5, wherein, the described step of obtaining the information of dedicated transmission channel comprises: obtain one of following information of described channel at least:

Priority Level (priority level);

Pre-emption Capability (seizing ability); With

Pre-emption Vulnerability (being seized ability).

7, method as claimed in claim 6, wherein, described information mapping according to described dedicated transmission channel (DCH) goes out user's priority and the step that whether can be seized comprises:

As long as there is a DCH to be set to and can to seize, described RL just has preemption function;

Can not be seized as long as there is a DCH to be provided with, this RL just can not be seized;

Select the priority level of the priority of a DCH that priority is the highest as described RL.

8, the method for claim 1, wherein

Described to set up described Radio Link be that described mobile subscriber's step also comprises: RNC (radio network controller) is that described Radio Link is set up corresponding AAL2 (ATM Adaptation Layer type 2) link according to the response message of setting up of described Radio Link by ALCAP (Access Link Control Application Protocol) agreement.

9, the step of the resource seized of the method for claim 1, wherein described release comprises: give RNC the deleted Radio Link that falls by RL PREEMPTION REQUIRED INDICATION (Radio Link is seized the request indication) message report; RNC receives this message, obtains corresponding user ID, discharges the resource of these users at the Iu interface, sends RAB RELEASE REQUEST (RAB discharges request) message and carries out a series of resource dispose procedure to CN (core net).

10, method as claimed in claim 8 or 9, wherein, also comprise step: judge and wait for whether the d/d timer of resource (Tpreempt) is overtime, if it is overtime, send RL SETUP FAILURE (Radio Link is set up failure) message to RNC, report described Radio Link foundation or reconfiguration failure; If not overtime, proceed dispose procedure, if before timer expiry, the resource of being seized can be released, RL sets up or reconfiguration course just will be proceeded.

11, a kind of priority according to Radio Link realizes the device of resource race to control, and wherein, mobile subscriber's machine comprises R-T unit, is used for sending Radio Link to the base station and sets up request and receive signal of base station, and described device comprises:

Base station transmitting/receiving device is used to obtain described Radio Link and sets up request message,

Judgment means: be used to judge whether this mobile subscriber's resource needed of described base station all is idle resource,

Described judgment means also comprises the priority judgment means, be used to judge take these users of the required resource of this mobile subscriber in described base station all whether the priority than described mobile subscriber is low, and its Radio Link can be seized,

The link releasing device is used to cut off the user's that described low priority and its Radio Link can be seized Radio Link,

The link establishment device is used for setting up Radio Link when having available resources;

Wherein, described judgment means also comprises:

Deriving means is used to obtain described base station services and has taken these users of the required resource of this mobile subscriber and the information and the physic channel information of pairing all dedicated transmission channels of these users;

Whether mapping device is used for information mapping according to described dedicated transmission channel and goes out user's priority and can be seized.

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