CN1984465A - Method and system for controlling switch process - Google Patents
Method and system for controlling switch process Download PDFInfo
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- CN1984465A CN1984465A CNA2006100744799A CN200610074479A CN1984465A CN 1984465 A CN1984465 A CN 1984465A CN A2006100744799 A CNA2006100744799 A CN A2006100744799A CN 200610074479 A CN200610074479 A CN 200610074479A CN 1984465 A CN1984465 A CN 1984465A
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- 238000012545 processing Methods 0.000 claims description 55
- 238000013461 design Methods 0.000 claims description 29
- 230000011664 signaling Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 10
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Abstract
In the invention, according to the network performance, the time length (TP) that should be occupied at pre-configuring stage is determined; in switch process, according to the determined TP, the switch decision-making entity decides if the pre-configuring stage satisfies the requirement; if yes, allowing to execute the switch process. The invention can control the switch process, and ensures the harmful effects to the network side will not be generated in switch process.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method and system that handoff procedure is controlled.
Background technology
For in 10 years futures or longer time, the wireless access technology of 3GPP all has very strong competitiveness, just needs to consider the Long Term Evolution (LTE) of 3GPP wireless access technology.The target of LTE is that one of exploitation has high data rate, the framework of the wireless access technology of features such as low-response time and optimum grouping access.Therefore, the pith of LTE comprises the response time of minimizing, higher user data rate, and the power system capacity of raising and coverage, and reduce expending of operator.
Fig. 1 realizes the flow chart that switches in the prior art.Referring to Fig. 1, in LTE, when terminal (UE) need switch to other sub-district from the sub-district at current place, realize that the process of this switching may further comprise the steps:
Step 101:UE measures the required radio condition that switches to the base station (Node B) in the sub-district.
For ease of describing, below abbreviate the Node B in the required sub-district that switches to of UE as target BS (TeNB).
Step 102:UE is sent to measurement report the handover decisions entity of network side.
At network side, the Node B in sub-district, the current place of UE abbreviates source base station (SeNB) as, and when having interface between the target BS, described handover decisions entity is a source base station; When not having interface between source base station and the target BS, described handover decisions entity is IAD (aGW).
For ease of describing, in this flow process, be example as described handover decisions entity with source base station.
Step 103: source base station is made handover decisions according to measurement report.
Step 104: source base station is sent to target BS with handover preparation request.
Step 105: after target BS receives handover preparation request, carry out pre-configured processing, such as processing such as resource reservation and record UE relevant parameter information.
Step 106: target BS will switch the preparation acknowledge message and be sent to source base station.
Step 107: source base station is sent to UE with switching command.
Step 108:UE carry out to switch relevant treatment, such as disconnecting and being connected of source base station, and carries out the L1 layer and disposes and be synchronized to processing such as target BS.
Step 109:UE is sent to target BS with switch acknowledgment message.
Step 110: target BS is sent to source base station with handoff completion message.
From flow process shown in Figure 1 as can be seen, comprise in the handoff procedure of LTE pre-configured the processing stage that promptly above-mentioned steps 104 is to step 106, the processing stage that this is pre-configured in, target BS is carried out operations such as resource reservation and record UE relevant parameter information according to the handover preparation request that receives.This pre-configured processing is a very important stage in handoff procedure, can reduce the time of handoff procedure, thereby reduces the time of communication disruption.
Yet in the handoff procedure of LTE, the influence that the time span that prior art is not considered to take pre-configured the processing stage produces whole handoff procedure is carried out by UE after just simply pre-configured the processing stage and is switched.But in the business realizing of reality, the time span that takies the processing stage of pre-configured has very big influence to whole handoff procedure.This be because, the processing stage of pre-configured the resource of target BS has been carried out in advance keeping, if the overlong time that takies pre-configured the processing stage, then can make handoff procedure too much take Internet resources, thereby cause waste of network resources, and influence other UE access target BS.If the time that takies the processing stage of pre-configured is too short, can't guarantee that then target BS finishes pre-configured processing, also just can't guarantee carrying out smoothly of handoff procedure, thereby reduce the QoS of network side.
This shows that in the handoff procedure of LTE, how the time span that takies according to pre-configured the processing stage is controlled handoff procedure, thereby guarantees the performance requirement of network, has become a problem demanding prompt solution.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of controlling handoff procedure, another object of the present invention is to provide a kind of system that controls handoff procedure, so that guarantee the performance requirement of network.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method of controlling handoff procedure comprises: the time span T that the pre-configured stage should take
PIn handoff procedure, the handover decisions entity is according to determined T
PJudge whether the pre-configured stage meet the requirements, if then allow to carry out handoff procedure.
Describedly determine the time span T that the pre-configured stage should take according to performance index requirements
PStep comprise:
A01, resulting during according to network design, handover decisions entity determine to switch the accurately signaling delay time D of request to the signaling delay time of target BS
1Resulting when determining network design, target BS receives handover preparation request to D time of delay that carries out between the pre-configured processing
XPre-configured time T is determined in operation according to the pre-configured processing resulting when the network design, that target BS should be carried out
rResulting during according to network design, target BS determines to switch the signaling delay time D of accurate acknowledge message to the signaling delay time of handover decisions entity
2
A02, according to D
1, D
X, T
rAnd D
2Value determine the time span TP that the pre-configured stage should take.
When target BS was carried out user's face and set up process in the pre-configured stage, described steps A 01 further comprised: resulting when determining network design, target BS and handover decisions entity are carried out the time T that user's face is set up process
UP
Described steps A 02 further comprises: according to T
UPValue determine the time span T that the pre-configured stage should take
P
When being operating as resource and keeping of the performed pre-configured processing of target BS, describedly determine pre-configured time T
rStep comprise: the obstruction possibility that obtains during according to network design and force and stop possibility and determine pre-configured time T
r
When being operating as of the performed pre-configured processing of target BS write down the terminal relevant parameter, described definite pre-configured time T
rStep comprise: the time that the target BS that obtains during according to network design record terminal relevant parameter information takies is determined pre-configured time T
r
Being operating as that resource keeps and during record terminal relevant parameter, describedly determining pre-configured time T when the performed pre-configured processing of target BS
rStep comprise: the obstruction possibility that obtains during according to network design and forcing stops the time that possibility and target BS record terminal relevant parameter information takies and determines pre-configured time T
r
Described handover decisions entity is according to determined T
PJudge the pre-configured stage, whether satisfactory step comprised: the handover decisions entity is picking up counting when target BS sends handover preparation request, and judgement arrives determined T in timing
PBefore the value, whether receive the switching preparation acknowledge message that target BS is sent, if determine that then the pre-configured stage meets the requirements.
Described handover decisions entity is according to determined T
PJudge the pre-configured stage, whether satisfactory step comprised:
A, in handoff procedure, the handover decisions entity obtains the actual time span T that takies of pre-configured stage
P';
The time span T that B, handover decisions entity should take according to the pre-configured stage
PJudge the T that is obtained
P' whether meet the requirements, if determine that then the pre-configured stage meets the requirements.
In steps A, described handover decisions entity obtains the actual time span T that takies of pre-configured stage
P' step comprise: in handoff procedure, when the handover decisions entity is sent to target BS with handover preparation request, the handover decisions entity starts the timing device that sets in advance, when the handover decisions entity received switching preparation acknowledge message, the handover decisions entity obtained the duration that timing device writes down; The handover decisions entity with the duration that obtained as the actual time span T that takies of pre-configured stage
P'.
This method further comprises: the step-up error scope;
In step B, the time span T that described handover decisions entity should take according to the pre-configured stage
PJudge the T that is obtained
P' whether satisfactory step comprises: the handover decisions entity is judged the T that is obtained
P' the time span T that should take with the pre-configured stage
PBetween difference whether in set error range, if then determine to meet the requirements.
In step B, the step that described handover decisions entity allows to carry out handoff procedure comprises: the handover decisions entity is sent to terminal with switching command.
In step B, in definite pre-configured stage undesirable after, further comprise: the handover decisions entity carry out to switch abnormality processing.
In step B, described handover decisions entity is carried out the step of switching abnormality processing and comprised: the handover decisions entity is sent to target BS with switch failure information; Target BS is released in reserved resource in the pre-configured processing.
When the source base station in the sub-district, terminal place and need switch to when not having interface between the target BS in the sub-district, described handover decisions entity is an IAD;
When having interface between source base station and the target BS, described handover decisions entity is a source base station.
A kind of system that handoff procedure is controlled, this system comprises: terminal, handover decisions entity and target BS, wherein,
Terminal is used for the measurement report to the target BS radio condition is sent to the handover decisions entity, and carries out the switching relevant treatment when receiving switching command;
The handover decisions entity is used to preserve the time span T that should take according to determined, the pre-configured stage of performance index requirements
PValue, in handoff procedure, according to the T that is preserved
PValue judge whether the pre-configured stage meet the requirements, after determining to meet the requirements, switching command is sent to terminal, determine undesirable after, switch failure information is sent to target BS;
Target BS is used for after receiving handover preparation request, carries out pre-configured processing, and when receiving switch failure information, is released in pre-configured processing time institute reserved resource.
Described handover decisions entity is used for picking up counting when target BS sends handover preparation request, and judges the T that is preserved in timing arrival
PValue before, whether receive the switching that target BS sends and prepare acknowledge message, if receive, then switching command is sent to terminal, if do not receive, switch failure information is sent to target BS.
Described handover decisions entity is used for obtaining the actual time span T that takies of pre-configured stage after receiving switching preparation affirmation
P', according to T
PJudge this T
P' whether meet the requirements, after determining to meet the requirements, switching command is sent to terminal, determine undesirable after, switch failure information is sent to target BS.
Described handover decisions entity side comprises timing device;
Described target BS is further used for after executing pre-configured processing, will switch the preparation acknowledge message and be sent to the handover decisions entity;
Described handover decisions entity, be used at handoff procedure, start described timing device when accurately request is sent to target BS will switching, and when receiving switching preparation acknowledge message, obtain the duration of described timing device record, with the duration that obtained as the actual time span T that takies of pre-configured stage
P'.
Described handover decisions entity is used to preserve a set error range, judges T
PWith T
P' between difference whether in described error range, if then determine T
P' meet the requirements, otherwise, determine T
p' undesirable.
When the source base station in the sub-district, terminal place and need switch to when not having interface between the target BS in the sub-district, described handover decisions entity is an IAD;
When having interface between source base station and the target BS, described handover decisions entity is a source base station.
This shows, in the present invention, determined the time span T that the pre-configured stage should take according to the various performance requirements of network side
P, like this, according to this T
PJudge the actual time span T that takies of pre-configured stage in the handoff procedure
P' whether meet the requirements after, then can determine to carry out current handoff procedure and whether can cause harmful effect the performance of network side, thus control handoff procedure success or failure.Therefore, the control that the present invention carries out handoff procedure can guarantee that handoff procedure can not produce harmful effect to network side, thereby guarantees the various performance requirements of network side, such as, at definite T
P' undesirable after, control handoff procedure failure then can be avoided waste of network resources and the increase of avoiding the network congestion possibility that handoff procedure causes.
Description of drawings
Fig. 1 realizes the flow chart that switches in the prior art.
Fig. 2 is the basic structure schematic diagram of system of the present invention.
Fig. 3 is the structural representation of system of the present invention when the handover decisions entity is IAD.
Fig. 4 is the structural representation of system of the present invention when the handover decisions entity is source base station.
Fig. 5 is the flow chart of the embodiment of the invention 1.
Fig. 6 is the flow chart of the embodiment of the invention 2.
Embodiment
The present invention proposes a kind of method of controlling handoff procedure, its core concept is: determine the time span T that the pre-configured stage should take according to performance index requirements
PIn handoff procedure, the handover decisions entity obtains the actual time span T that takies of pre-configured stage
P'; The time span T that the handover decisions entity should take according to the pre-configured stage
PJudge the T that is obtained
P' whether meet the requirements, if, then allow to carry out to switch, otherwise, forbid carrying out and switch.
Accordingly, the invention allows for a kind of system that controls handoff procedure.Fig. 2 is the basic structure schematic diagram of system of the present invention.Referring to Fig. 2, system of the present invention mainly comprises: terminal, handover decisions entity and target BS, wherein,
Terminal is used for the measurement report to the target BS radio condition is sent to the handover decisions entity, and carries out the switching relevant treatment when receiving switching command;
The handover decisions entity is used to preserve the time span T that should take according to determined, the pre-configured stage of performance index requirements
PValue, after receiving measurement report and making handover decisions, handover preparation request is sent to target BS, and receive switch to prepare confirm after, obtain the actual time span T that takies of pre-configured stage
P', according to T
PJudge this T
P' whether meet the requirements, if, then switching command is sent to terminal, otherwise, switch failure information is sent to target BS;
Target BS is used for after receiving handover preparation request, carries out pre-configured processing, and when receiving switch failure information, is released in pre-configured processing time institute reserved resource.
Fig. 3 is the structural representation of system of the present invention when the handover decisions entity is IAD.Referring to Fig. 3, when not having interface between source base station and the target BS, the handover decisions entity in the system of the present invention is an IAD.Fig. 4 is the structural representation of system of the present invention when the handover decisions entity is source base station.Referring to Fig. 4, when having interface between source base station and the target BS, the handover decisions entity in the system of the present invention is a source base station.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
For whether the execution of determining handoff procedure can influence the performance of network side, in the present invention, at first determine the time span T that the pre-configured stage should take according to performance index requirements
P, and with this T
PValue be kept in the handover decisions entity.
Here, according to existing handoff procedure as can be seen, the shared time in whole pre-configured stage should comprise as the lower part: the switching that the handover decisions entity is sent is the signaling delay time of request accurately, is designated as D
1Target BS receives the processing delay of switching after accurately asking, and is designated as D
XTarget BS is carried out the time that pre-configured processing takies, and is designated as T
rThe signaling delay time of the accurate acknowledge message of switching that target BS sent, be designated as D
2Therefore, T
P=D
1+ D
X+ T
r+ D
2
Wherein, D
1Value can determine to the signaling delay time of target BS according to resulting when the network design, handover decisions entity.Referring to Fig. 3, when the handover decisions entity is IAD, D
1Value specifically be when network design resulting IAD to the signaling delay time of target BS; Referring to Fig. 4, when the handover decisions entity is source base station, D
1Value specifically be when network design resulting source base station to the signaling delay time of target BS.
And, D
XValue can receive handover preparation request according to resulting when the network design, target BS and determine to the time of delay of carrying out between the pre-configured processing.
And, T
rValue can determine according to the time that resulting when the network design, target BS are carried out pre-configured processing operation, need to consider the following aspects:
A, when comprising in the pre-configured processing operation that target BS is carried out that resource keeps when not comprising record terminal relevant parameter information,
This T
rThe obstruction possibility that obtains during according to network design of value and force and stop possibility and determine, such as, according to the network design requirement, stop obtaining T by system emulation under possibility and the condition satisfying specific obstruction possibility and forcing
rValue.
B, when not comprising in the pre-configured processing operation that target BS is carried out that resource keeps when comprising record terminal relevant parameter information,
This T
rTime of taking of the target BS record terminal relevant parameter information that obtains during according to network design of value determine.
C, when comprising in the pre-configured processing operation that target BS is carried out that resource keeps and during record terminal relevant parameter information,
This T
rThe obstruction possibility that obtains during according to network design of value and forcing stop the time that possibility and target BS record terminal relevant parameter information takies and determine.
And, D
2Value can determine to the signaling delay time of handover decisions entity according to resulting when the network design, target BS, and, referring to Fig. 3, when the handover decisions entity is IAD, D
2Value specifically be when network design resulting target BS to the signaling delay time of IAD; Referring to Fig. 4, when the handover decisions entity is source base station, D
2Value specifically be when network design resulting target BS to the signaling delay time of source base station.
Need to prove, in the pre-configured stage,, therefore, determining the time span T that the pre-configured stage should take according to performance index requirements because target BS can also further be carried out the process that user's face is set up with the handover decisions entity
PThe time can also further consider that resulting when network design, target BS and handover decisions entity carry out the time that user's face is set up process, be designated as T
UP, that is to say T
P=D
1+ D
X+ T
r+ D
2+ T
UP
Fig. 5 is the flow chart of the embodiment of the invention 1.Referring to Fig. 3 and Fig. 5, when the handover decisions entity described in the present invention is IAD, utilize the T that sets in advance
PThe process that realization is controlled handoff procedure may further comprise the steps:
Step 501:UE measures the radio condition of target BS.
Step 502:UE will be sent to IAD to the measurement report of target BS radio condition.
Step 503: IAD is made handover decisions according to measurement report.
Step 504: IAD sends to target BS with handover preparation request.
Step 505: after target BS receives handover preparation request, carry out pre-configured processing after through one section processing delay, keep and pre-set processing such as resource.
Step 506: target BS will switch the preparation acknowledge message and be sent to IAD.
Step 507: after IAD receives and switches the preparation acknowledge message, according to the T that is kept in advance in self
PValue, judge the actual time span T that takies of pre-configured stage in this handoff procedure
P' value whether meet the requirements, if then execution in step 510, otherwise, execution in step 508.
Here, the present invention can set in advance an error range, and in this step, the specific implementation process of described judgement can be judged T for: IAD
P' and T
PBetween difference whether in the error range that sets in advance, if then determine T
P' value meet the requirements, otherwise, determine T
P' value undesirable.
And, by judging T
P' value whether meet the requirements, can determine then whether this handoff procedure can cause harmful effect to the performance of network side, thereby take corresponding control measures.Such as, if T
P' value meet the requirements, can determine that then this handoff procedure can not influence the access of other terminal, can continue this handoff procedure; If T
P' value undesirable, can determine that then this handoff procedure can increase the obstruction possibility of network side or force the termination possibility, influence the access of other terminal, should forbid this handoff procedure.
In addition, in above-mentioned steps 504, IAD can also start in advance timing device set in self, such as timer or counter etc. when handover preparation request is sent to target BS.Like this, in this step, when IAD received switching preparation acknowledge message, this IAD obtained the actual time span T that takies of pre-configured stage in this handoff procedure according to the duration information that timing device write down
P' value.
Step 508: IAD is sent to target BS with switch failure information.
Step 509: target BS is released in the various resources of reserving for terminal in the pre-configured stage according to the switch failure information that receives, and finishes current flow process.
Step 510: IAD is sent to UE by source base station with switching command.
Step 511:UE carry out to switch relevant treatment, such as disconnecting and being connected of source base station, and carries out the L1 layer and disposes and be synchronized to processing such as target BS.
Step 512:UE is sent to IAD with switch acknowledgment message.
Step 513: IAD is sent to source base station with handoff completion message.
Fig. 6 is the flow chart of the embodiment of the invention 2.Referring to Fig. 4 and Fig. 6, when the handover decisions entity described in the present invention is source base station, utilize the T that sets in advance
PThe process that realization is controlled handoff procedure may further comprise the steps:
Step 601:UE measures the radio condition of target BS.
Step 602:UE will be sent to source base station to the measurement report of target BS radio condition.
Step 603: source base station is made handover decisions according to measurement report.
Step 604: source base station sends to target BS with handover preparation request.
Step 605: after target BS receives handover preparation request, carry out pre-configured processing after through one section processing delay, keep and pre-set processing such as resource.
Step 606: target BS will switch the preparation acknowledge message and be sent to source base station.
Step 607: after source base station receives and switches the preparation acknowledge message, according to the T that is kept in advance in self
PValue, judge the actual time span T that takies of pre-configured stage in this handoff procedure
P' value whether meet the requirements, if then execution in step 610, otherwise, execution in step 608.
Here, the present invention can set in advance an error range, and in this step, the specific implementation process of described judgement can be judged T for: source base station
P' and T
PBetween difference whether in the error range that sets in advance, if then determine T
P' value meet the requirements, otherwise, determine T
P' value undesirable.
In addition, in above-mentioned steps 604, source base station can also start in advance timing device set in self, such as timer or counter etc. when handover preparation request is sent to target BS.Like this, in this step, when source base station received switching preparation acknowledge message, this source base station obtained the actual time span T that takies of pre-configured stage in this handoff procedure according to the duration information that timing device write down
P' value.
Step 608: source base station is sent to target BS with switch failure information.
Step 609: target BS is released in the various resources of reserving for terminal in the pre-configured stage according to the switch failure information that receives, and finishes current flow process.
Step 610: source base station is sent to UE with switching command.
Step 611:UE carry out to switch relevant treatment, such as disconnecting and being connected of source base station, and carries out the L1 layer and disposes and be synchronized to processing such as target BS.
Step 612:UE is sent to target BS with switch acknowledgment message.
Step 613: target BS is sent to source base station with handoff completion message.
In above-mentioned Fig. 5 and process shown in Figure 6, the handover decisions entity can also adopt other mode to judge whether the pre-configured stage of target BS meet the requirements, thereby takes the processing of success of control corresponding handoff procedure or failure.Such as, the handover decisions entity is picking up counting when target BS sends described handover preparation request, and judgement arrives determined T in timing
PBefore the value, whether receive the switching preparation acknowledge message that target BS is sent, if, determine that then the pre-configured stage meets the requirements, thereby carry out the above-mentioned process that switching command is sent to UE, otherwise, determine that then the pre-configured stage is undesirable, thereby carry out the above-mentioned switching abnormality processing that switch failure information is sent to target BS.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1, a kind of method that handoff procedure is controlled is characterized in that, determines the time span T that the pre-configured stage should take according to performance index requirements
P, this method also comprises: in handoff procedure, the handover decisions entity is according to determined T
PJudge whether the pre-configured stage meet the requirements, if then allow to carry out handoff procedure.
2, method according to claim 1 is characterized in that, describedly determines the time span T that the pre-configured stage should take according to performance index requirements
PStep comprise:
A01, resulting during according to network design, handover decisions entity determine to switch the accurately signaling delay time D of request to the signaling delay time of target BS
1Resulting when determining network design, target BS receives handover preparation request to D time of delay that carries out between the pre-configured processing
XPre-configured time T is determined in operation according to the pre-configured processing resulting when the network design, that target BS should be carried out
rResulting during according to network design, target BS determines to switch the signaling delay time D of accurate acknowledge message to the signaling delay time of handover decisions entity
2
A02, according to D
1, D
X, T
rAnd D
2Value determine the time span T that the pre-configured stage should take
P
3, method according to claim 2, it is characterized in that, when target BS was carried out user's face and set up process in the pre-configured stage, described steps A 01 further comprised: resulting when determining network design, target BS and handover decisions entity are carried out the time T that user's face is set up process
UP
Described steps A 02 further comprises: according to T
UPValue determine the time span T that the pre-configured stage should take
P
4, method according to claim 2 is characterized in that, when being operating as resource and keeping of the performed pre-configured processing of target BS, describedly determines pre-configured time T
rStep comprise: the obstruction possibility that obtains during according to network design and force and stop possibility and determine pre-configured time T
r
When being operating as of the performed pre-configured processing of target BS write down the terminal relevant parameter, described definite pre-configured time T
rStep comprise: the time that the target BS that obtains during according to network design record terminal relevant parameter information takies is determined pre-configured time T
r
Being operating as that resource keeps and during record terminal relevant parameter, describedly determining pre-configured time T when the performed pre-configured processing of target BS
rStep comprise: the obstruction possibility that obtains during according to network design and forcing stops the time that possibility and target BS record terminal relevant parameter information takies and determines pre-configured time T
r
5, method according to claim 1 is characterized in that, described handover decisions entity is according to determined T
PJudge the pre-configured stage, whether satisfactory step comprised: the handover decisions entity is picking up counting when target BS sends handover preparation request, and judgement arrives determined T in timing
PBefore the value, whether receive the switching preparation acknowledge message that target BS is sent, if determine that then the pre-configured stage meets the requirements.
6, method according to claim 1 is characterized in that, described handover decisions entity is according to determined T
PJudge the pre-configured stage, whether satisfactory step comprised:
A, in handoff procedure, the handover decisions entity obtains the actual time span T that takies of pre-configured stage
P';
The time span T that B, handover decisions entity should take according to the pre-configured stage
PJudge the T that is obtained
P' whether meet the requirements, if determine that then the pre-configured stage meets the requirements.
7, method according to claim 6 is characterized in that, in steps A, described handover decisions entity obtains the actual time span T that takies of pre-configured stage
P' step comprise: in handoff procedure, when the handover decisions entity is sent to target BS with handover preparation request, the handover decisions entity starts the timing device that sets in advance, when the handover decisions entity received switching preparation acknowledge message, the handover decisions entity obtained the duration that timing device writes down; The handover decisions entity with the duration that obtained as the actual time span T that takies of pre-configured stage
P'.
8, method according to claim 6 is characterized in that, this method further comprises: the step-up error scope;
In step B, the time span T that described handover decisions entity should take according to the pre-configured stage
PJudge the T that is obtained
P ,Whether satisfactory step comprises: the handover decisions entity is judged the T that is obtained
P' the time span T that should take with the pre-configured stage
PBetween difference whether in set error range, if then determine to meet the requirements.
According to any described method in the claim 1 to 8, it is characterized in that 9, in step B, the step that described handover decisions entity allows to carry out handoff procedure comprises: the handover decisions entity is sent to terminal with switching command.
10, according to any described method in the claim 1 to 8, it is characterized in that, in step B, in definite pre-configured stage undesirable after, further comprise: the handover decisions entity carry out to switch abnormality processing.
11, method according to claim 10 is characterized in that, described handover decisions entity is carried out the step of switching abnormality processing and comprised: the handover decisions entity is sent to target BS with switch failure information; Target BS is released in reserved resource in the pre-configured processing.
According to any described method in the claim 1 to 8, it is characterized in that 12, when the source base station in the sub-district, terminal place and need switch to when not having interface between the target BS in the sub-district, described handover decisions entity is an IAD;
When having interface between source base station and the target BS, described handover decisions entity is a source base station.
13, a kind of system that handoff procedure is controlled is characterized in that, this system comprises: terminal, and handover decisions entity and target BS, wherein,
Terminal is used for the measurement report to the target BS radio condition is sent to the handover decisions entity, and carries out the switching relevant treatment when receiving switching command;
The handover decisions entity is used to preserve the time span T that should take according to determined, the pre-configured stage of performance index requirements
PValue, in handoff procedure, according to the T that is preserved
PValue judge whether the pre-configured stage meet the requirements, after determining to meet the requirements, switching command is sent to terminal, determine undesirable after, switch failure information is sent to target BS;
Target BS is used for after receiving handover preparation request, carries out pre-configured processing, and when receiving switch failure information, is released in pre-configured processing time institute reserved resource.
14, system according to claim 13 is characterized in that, described handover decisions entity is used for picking up counting when target BS sends handover preparation request, and judges the T that is preserved in timing arrival
PValue before, whether receive the switching that target BS sends and prepare acknowledge message, if receive, then switching command is sent to terminal, if do not receive, switch failure information is sent to target BS.
15, system according to claim 13 is characterized in that, described handover decisions entity is used for obtaining the actual time span T that takies of pre-configured stage after receiving switching preparation affirmation
P', according to T
PJudge this T
P' whether meet the requirements, after determining to meet the requirements, switching command is sent to terminal, determine undesirable after, switch failure information is sent to target BS.
16, system according to claim 15 is characterized in that, described handover decisions entity side comprises timing device;
Described target BS is further used for after executing pre-configured processing, will switch the preparation acknowledge message and be sent to the handover decisions entity;
Described handover decisions entity, be used at handoff procedure, start described timing device when accurately request is sent to target BS will switching, and when receiving switching preparation acknowledge message, obtain the duration of described timing device record, with the duration that obtained as the actual time span T that takies of pre-configured stage
P'.
17, system according to claim 15 is characterized in that, described handover decisions entity is used to preserve a set error range, judges T
PWith T
P' between difference whether in described error range, if then determine T
P' meet the requirements, otherwise, determine T
P' undesirable.
18, system according to claim 13 is characterized in that, when the source base station in the sub-district, terminal place and need switch to when not having interface between the target BS in the sub-district, described handover decisions entity is an IAD;
When having interface between source base station and the target BS, described handover decisions entity is a source base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610074479A CN1984465B (en) | 2006-04-21 | 2006-04-21 | Method and system for controlling switch process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610074479A CN1984465B (en) | 2006-04-21 | 2006-04-21 | Method and system for controlling switch process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1984465A true CN1984465A (en) | 2007-06-20 |
| CN1984465B CN1984465B (en) | 2010-05-12 |
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ID=38166593
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610074479A Expired - Fee Related CN1984465B (en) | 2006-04-21 | 2006-04-21 | Method and system for controlling switch process |
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| CN (1) | CN1984465B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3093800A (en) * | 1998-12-18 | 2000-07-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for resource reservation in a mobile radio communications system |
| CN100399859C (en) * | 2004-10-11 | 2008-07-02 | 大唐移动通信设备有限公司 | Implementation method for switching arranged resources in mobile communication system |
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