CN100420318C - Method for releasing transmission resource of base station - Google Patents
Method for releasing transmission resource of base station Download PDFInfo
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- CN100420318C CN100420318C CNB2005100330712A CN200510033071A CN100420318C CN 100420318 C CN100420318 C CN 100420318C CN B2005100330712 A CNB2005100330712 A CN B2005100330712A CN 200510033071 A CN200510033071 A CN 200510033071A CN 100420318 C CN100420318 C CN 100420318C
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- transmission resource
- management module
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Abstract
The present invention discloses a method for releasing the transmission resource of a base station. The present invention is characterized in that message alternation is established between a radio resource management module of the base station and a transmission resource management module. A message relative to a radio resource busy condition is transmitted toward the transmission resource management module by the radio resource management module. The transmission resource management module is used for receiving the message. Transmission resources are correspondingly processed according to the message. By adopting the method of the present invention, transmission resource death phenomenon occurs after the long period operation of the base station can be effectively prevented. Possible resource inconsistency discovered by real-time detection in an operational process can be effectively and immediately solved. Under the condition of not increasing other resources or costs, limited transmission resources are effectively utilized.
Description
Technical field
The present invention relates to Wideband Code Division Multiple Access (WCDMA) (Wide Code Division MultipleAddressing is hereinafter to be referred as WCDMA) mobile communication system, particularly relate to a kind of method of the WCDMA of release base stations in mobile communication system transfer resource.
Background technology
Universal land radio access web among the WCDMA (Universal Terrestrial RadioAccess Network is hereinafter to be referred as UTRAN) protocol architecture mainly comprises two-layer: wireless network layer and transport network layer.All agreements relevant with land radio access web are included in wireless network layer, and transport network layer is meant by the transmission technology of the selected standard of UTRAN, and is irrelevant with the specific function of UTRAN.The basic structure of each unit interface of UTRAN as shown in Figure 1.This basic structure is clearly pointed out separating of UTRAN wireless network layer and transport layer, and promptly wireless network layer does not rely on specific transmission technology.Base station (hereinafter to be referred as NodeB) belongs to the node of UTRAN, follows structure shown in Figure 1.
Among the NodeB, the RRM module receives from radio network controller (RadioNetwork Controller, hereinafter to be referred as RNC) message, these message all meet the node B application part standard agreement (Node B Application Part is hereinafter to be referred as the NBAP agreement) of IUB interface.The RRM module is in charge of the user in the wireless network layer resource needed according to the message indication of RNC, such as coding unit, and demodulating unit and decoding unit or the like.And the transmission resource management module also receives the message from RNC, and these message all meet Access Link Control Application Protocol (Access Link Control Application Protocol is hereinafter to be referred as the ALCAP agreement).The transmission resource management module is in charge of the user in the transport network layer resource needed according to the message indication of RNC, such as transmission channel, and bandwidth or the like.And RRM and transmission resource management module be all according to the indication work of RNC, and it doesn't matter each other.Shown in Figure 2 is that typical user's link setup is deleted in the chain process message interaction process figure of RNC and NodeB.
According to the 3G agreement.During link setup, RNC at first initiates Radio Link and sets up request, RRM module assignment corresponding radio resource and packing identification (Binding Identity is hereinafter to be referred as Binding ID), return Radio Link and set up success response, band Binding ID to RNC.RNC initiates to set up ATM Adaptation Layer type 2 (ATM Adaptation Layer Type 2 then, hereinafter to be referred as AAL2) the carrying request, band Binding ID, the transfer resource of transmission resource management module assignment correspondence, and it is corresponding with Binding ID, return response.When tearing chain open, RNC at first initiates the Radio Link removal request, and the RRM module discharges corresponding radio resource, returns Radio Link deletion success response and gives RNC.RNC initiates to discharge AAL2 carrying request then, returns response.
Pay close attention to the user once more and delete chain.RNC uses the NBAP agreement to initiate the Radio Link removal request to discharge Radio Resource, and NodeB is by the RRM resume module.RNC uses the ALCAP agreement to initiate AAL2 release request to discharge transfer resource then, and NodeB is by the transmission resource management resume module.Thereby the wireless and transfer resource that guarantees CU has all obtained correct release.
Along with base station ability among the WCDMA from strength to strength, the number of users of support is more and more, RNC and NodeB's is mutual more and more.Under some special situation, reasons such as, transmission abnormality excessive owing to flow may cause that the base station has received the Radio Link removal request that RNC initiates, and do not discharge request but receive the AAL2 that RNC initiates.Perhaps the both does not receive.Even without receiving that the Radio Link removal request also has no relations, because when the user withdraws from, Radio Link does not have deleted words, link is certain to step-out, when step-out is overtime, NodeB will initiate the radio link failure process according to the NBAP agreement, discharges Radio Link, and Radio Resource has obtained release.Do not discharge request and receive AAL2, can cause the Radio Resource of CU to discharge, but transfer resource is not released.
Based on above-mentioned situation, may cause user's transfer resource to be taken for a long time and can not get discharging, if do not take suitable measure, may cause the part resource can't continue to use, reduced the actual capacity of system, also may cause system crash in the time of serious.
Prior art is to search to cause that transfer resource and Radio Resource take inconsistent reason to the solution of this problem, and takes measures to eliminate the reason that has problems.For example: improve the reliability of bottom data transmission, the length that increases message queue and prevent that message queue overflows under the excessive situation of flow and cause information drop-out or the like, make the inconsistent phenomenon of resource no longer occur.But there is following shortcoming in this solution: the first, institute might be caused transfer resource and Radio Resource to take inconsistent reason and all find out and be not an easy thing, it almost is inevitable omitting; The second, each reason possibly can't thoroughly solve, as the impossible unconfined raising of reliability of bottom data transmission; The impossible unconfined increase of the length of message queue; Take place in case the 3rd Radio Resource and transfer resource take inconsistent phenomenon, system can't recover.
Summary of the invention
Technical problem to be solved by this invention is to use smaller cost, in time, correctly discharges transfer resource in the scope that operational indicator allows, and guarantees that Radio Resource takies consistent with transfer resource.
Technical scheme of the present invention provides a kind of method of releasing transmission resource of base station.This method is to set up interacting message between the RRM module of base station and transmission resource management module, send the message of relevant Radio Resource seizure condition to the transmission resource management module by the RRM module, the transmission resource management module receives this message, according to this message transfer resource is handled accordingly.
As a kind of embodiment, the method of a kind of releasing transmission resource of base station provided by the present invention comprises: receiving the Radio Link removal request of RNC when the RRM module after, sending the AAL2 carrying to the transmission resource management module releases order, the Binding id information that comprises the link of deleting during described AAL2 releases order, the transmission resource management module is handled transfer resource accordingly according to this packing identifying information.
In the said method, described processing comprises that the transmission resource management module discharges corresponding AAL2 according to described Binding id information.
In addition, after the transmission resource management module discharges corresponding AAL2 carrying according to described Binding id information,, directly return success response to RNC when receiving the AAL2 carrying of not setting up or having discharged from RNC when discharging request.
As another embodiment, the method of another kind of releasing transmission resource of base station provided by the present invention comprises: the RRM module sends the internal auditing request to the transmission resource management module, comprise the Binding id information that has distributed in the Radio Resource in the described internal auditing request, the transmission resource management module is handled transfer resource accordingly according to this Binding id information; Wherein, the transmission resource management module is handled this audit request like this: described Binding id information and the AAL2 resource that oneself takies are compared, when inconsistent situation occurring, if the AAL2 resource that takies is arranged, then delete immediately more; If the AAL2 inadequate resource that takies then returns internal auditing response to the RRM module, but described internal auditing response comprises that transmission has discharged the Binding id information that the RRM module is also being used.
As selection, above-mentioned RRM module is to carry out in the cycle to the described internal auditing request that the transmission resource management module sends, as carrying out morning every day.In addition, this cycle is adjustable; This audit request can also be by artificial initiation.
Adopt method of the present invention, can prevent from effectively after the long-time running of base station the phenomenon that transfer resource is hung to take place; The possible resource of finding is inconsistent also effectively to be solved immediately for detecting in real time in the running; Do not increasing under other resources or the condition of cost, effectively utilizing limited transfer resource.
, the method for releasing transmission resource of base station of the present invention is described further by embodiment below in conjunction with accompanying drawing.
Description of drawings
Figure 1 shows that the basic structure of each unit interface of UTRAN;
Figure 2 shows that RNC and NodeB Signalling exchange flow chart in the prior art;
Fig. 3 A and 3B are depicted as the RNC and the NodeB Signalling exchange flow chart of the embodiment of the invention;
Figure 4 shows that the RRM module and the transmission resource management inside modules audit flow chart of the embodiment of the invention.
Embodiment
The present invention is by setting up interacting message between the RRM module of inside of base station and transmission resource management module, it is consistent to guarantee that Radio Resource and transfer resource take situation.
Deleting chain process with typical user's link setup is example, on the basis of the Signalling exchange flow process (see figure 2) of prior art RNC and NodeB, the present invention has increased AAL2 and has discharged the NodeB inside story of indicating, shown in Fig. 3 A or 3B, the sender that this AAL2 discharges indication is the RRM module, and the recipient is the transmission resource management module.Message structure is as shown in table 1.
Table 1 AAL2 discharges indication
| The IE/ group name | Type and scope | Length (Bytes) | Describe |
| Type of message | ID_AAL2_ release _ indication | 2 | Message identifier |
| Pid | U32 | 4 | Process PID fills out 0xFFFFFFFF |
| Binding ID | U32 | 4 | Binding ID, with define in the NBAP agreement consistent |
In the flow chart of Fig. 3 A illustrated embodiment, NodeB RRM module is after receiving the Radio Link removal request, according to the Binding id information notification transmission resource management module release immediately user face transmission bearer of this link, promptly corresponding AAL2.The transmission resource management module is handled according to indication, discharges corresponding AAL2 immediately, guarantees that transfer resource in time, correctly discharge, makes high-rise channel resource seizure condition with bottom be consistent.And in following step,, directly return success response to RNC when the transmission resource management module receives not the AAL2 carrying of setting up or having discharged when discharging request from RNC.
Fig. 3 B is depicted as another embodiment that AAL2 discharges indication, the difference of itself and Fig. 3 A is: the RRM module is after receiving the Radio Link removal request, the deletion Radio Link returns Radio Link deletion response to RNC earlier, reinforms the transmission resource management module and discharges the AAL2 transmission bearer.
As another measure, the present invention also sets up internal auditing between the RRM module of base station and transmission resource management module, and the flow process of this internal auditing as shown in Figure 4.Regularly initiate audit by the RRM module, and handle, guarantee that transfer resource and Radio Resource take situation and be consistent according to auditing result to the transmission resource management module.The message structure of internal auditing request and response is shown in table 2 and table 3.
Table 2 internal auditing request
| The IE/ group name | Type and scope | Length (Bytes) | Describe |
| Type of message | ID_SIG_TRAN_ audit _ request | 2 | Message identifier |
| PId | U32 | 4 | CPU software process PID |
| Binding ID Num | Integer (1..MAXBinding) | 2 | Already used Binging number, the transfer resource passage number that just takies |
| Binding ID[Binding ID Num] | U32 | 4 | Binding ID, with define in the NBAP agreement consistent |
Table 3 internal auditing response
| The IE/ group name | Type and scope | Length (Bytes) | Describe |
| Type of message | ID_SIG_TRAN_ audit _ response | 2 | Message identifier |
| PId | U32 | 4 | Process PID, directly backfill |
| Binding ID Num | Integer (1..MAXBinding) | 2 | Transmission discharged but the RRM module also in the Binging number of using, the transfer resource passage number that just takies |
| Binding ID[Binding ID Num] | U32 | 4 | Binding ID, with define in the NBAP agreement consistent |
The RRM module is carried the Binding id information resource of having distributed in the audit message of initiating, the transmission resource management module compares these Binding id informations and the AAL2 resource that oneself takies, discovery has inconsistent the time, if the AAL2 resource that accounts for is arranged more then deletion immediately, keep consistent with the RRM module, if discovery has not enough, then respond by internal auditing, in response message, feed back to the RRM module, by the RRM resume module.Internal auditing response comprise that transmission has discharged but the RRM module also at the Binding id information that uses, the RRM module is gone into daily record with this situation as exception record after receiving the internal auditing response.This transmission has discharged but the RRM module is moment in the existence of the Binding ID that uses also.Because after transmission bearer AAL2 discharged, Radio Link did not have deleted, link will step-out, in case step-out is overtime, NodeB will initiate the radio link failure process according to the NBAP agreement, discharges Radio Link, thereby makes Radio Resource obtain discharging.
Like this, take with transfer resource and take inconsistent situation, also can detect and make timely corrections even Radio Resource occurred.
The aforementioned audit of being initiated by the RRM module can be carried out in the cycle, as, can initiate once morning every day, and the cycle can manual adjustment.Certainly this audit also can manually be initiated.
Claims (7)
1. the method for a releasing transmission resource of base station, it is characterized in that, comprise: receiving the Radio Link removal request of radio network controller transmission when the RRM module after, sending the ATM Adaptation Layer type 2 carrying to the transmission resource management module releases order, comprise the packing identifying information of the link of deleting during described ATM Adaptation Layer type 2 carrying is released order, the transmission resource management module is handled transfer resource accordingly according to this packing identifying information.
2. the method for releasing transmission resource of base station according to claim 1, it is characterized in that: described transmission resource management module is handled accordingly transfer resource according to this packing identifying information and comprised: the transmission resource management module discharges corresponding ATM Adaptation Layer type 2 carrying according to described packing identifying information.
3. as the method for releasing transmission resource of base station as described in the claim 2, it is characterized in that: after the transmission resource management module discharges corresponding ATM Adaptation Layer type 2 carrying according to described packing identifying information, when receiving the ATM Adaptation Layer type 2 carrying of not setting up or having discharged from radio network controller when discharging request, directly return success response to radio network controller.
4. the method for a releasing transmission resource of base station, it is characterized in that, comprise: the RRM module sends the internal auditing request to the transmission resource management module, comprise the packing identifying information that has distributed in the Radio Resource in the described internal auditing request, the transmission resource management module is handled transfer resource accordingly according to this packing identifying information; Wherein, the transmission resource management module is handled this audit request like this: described packing identifying information and the ATM Adaptation Layer type 2 bearing resource that oneself takies are compared, when inconsistent situation occurring, if the ATM Adaptation Layer type 2 bearing resource that takies is arranged more, then deletion immediately; If the ATM Adaptation Layer type 2 bearing resource deficiency that takies is then returned internal auditing response to the RRM module, but described internal auditing response comprises that transmission has discharged the packing identifying information that the RRM module is also being used.
5. method as claimed in claim 4 is characterized in that: described RRM module is to carry out in the cycle to the described internal auditing request that the transmission resource management module sends, and this cycle can be adjusted.
6. method as claimed in claim 5 is characterized in that: described RRM module is carried out in morning every day to the internal auditing request that the transmission resource management module sends.
7. method as claimed in claim 4 is characterized in that: the internal auditing request that described RRM module sends to the transmission resource management module is by artificial initiation.
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| CNB2005100330712A CN100420318C (en) | 2005-01-28 | 2005-01-28 | Method for releasing transmission resource of base station |
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| CNB2005100330712A CN100420318C (en) | 2005-01-28 | 2005-01-28 | Method for releasing transmission resource of base station |
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| CN1812605A CN1812605A (en) | 2006-08-02 |
| CN100420318C true CN100420318C (en) | 2008-09-17 |
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| CN101170786B (en) * | 2007-11-02 | 2010-09-29 | 中兴通讯股份有限公司 | A method for preventing Iub interface carried resource from suspending |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003047281A1 (en) * | 2001-11-26 | 2003-06-05 | Nokia Corporation | Mac layer inverse multiplexing in a third generation ran |
| WO2004028181A1 (en) * | 2002-09-18 | 2004-04-01 | Nokia Corporation | Method for managing radio resources and radio system |
| US20040136403A1 (en) * | 2001-07-11 | 2004-07-15 | Nokia Corporation | Method for managing connection resources |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136403A1 (en) * | 2001-07-11 | 2004-07-15 | Nokia Corporation | Method for managing connection resources |
| WO2003047281A1 (en) * | 2001-11-26 | 2003-06-05 | Nokia Corporation | Mac layer inverse multiplexing in a third generation ran |
| WO2004028181A1 (en) * | 2002-09-18 | 2004-04-01 | Nokia Corporation | Method for managing radio resources and radio system |
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