CN1956588A - Method of VoIP service channel switching control - Google Patents

Method of VoIP service channel switching control Download PDF

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Publication number
CN1956588A
CN1956588A CNA2005101095673A CN200510109567A CN1956588A CN 1956588 A CN1956588 A CN 1956588A CN A2005101095673 A CNA2005101095673 A CN A2005101095673A CN 200510109567 A CN200510109567 A CN 200510109567A CN 1956588 A CN1956588 A CN 1956588A
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voip
professional
channel
transmitting power
span
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CN100442929C (en
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张建伟
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XFusion Digital Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

This invention discloses a method for controlling the switch of VoIP service channels, which monitors and gets the down emission power on a specific channel of the VoIP service, when its down emission power is greater than the threshold of the greatest down emission power, it switch the VoIP service to a high speed down packet access channel from a special channel. The invention utilizes the share character of the high speed down packet access channels to use the system resource effectively and increase spectrum efficiency by shared code resource and power resource and the use of high stage modulation, besides, it keeps the VoIP service of users on a special channel to reduce unnecessary channel switch.

Description

A kind of method of VoIP Traffic Channel switching controls
Technical field
The present invention relates to voip technology, refer to a kind of method of VoIP Traffic Channel switching controls especially.
Background technology
Because traditional voice transmission convenient, voice service will be a business of main and the heavy maximum of the accounting third generation (3G) mobile communication system in the following a very long time.One of evolution trend of 3G system is that network all-IP (Internet Protocol) is changed, and VoIP (Voice over IP) business is exactly a transmission technology that realizes Speech Communication based on router IP packet switching network.At conventional wireless communication systems (UMTS, Universal Mobile Telecommunication System) can use dedicated channel (DCH in, Dedicated Channel) or high speed downlink packet insert (HSDPA, High Speed Downlink Packet Access) channel and support the VoIP business.
When supporting that by the DCH channel VoIP is professional, the DCH channel can satisfy the qos requirement of VoIP business, but sends for dividing into groups, being interrupted because of VoIP is professional, if therefore by the omnidistance carrying VoIP service of DCH, entire wireless communication system can show lower spectrum efficiency.As the user who uses the VoIP business during gradually away from the base station, path loss between base station and the user increases gradually, thereby causing the required descending DCH channel emission power of this business to increase gradually, the poor efficiency that is shown by the omnidistance carrying VoIP service of DCH channel also can be obvious further.
And when supporting that by the HSDPA channel VoIP is professional, because the HSDPA channel itself has sharing characteristic, based on the sharing characteristic of HSDPA channel, just can be by sharing the spectrum efficiency that is used for improving whole system that makes of sign indicating number resource and power resource and high-order modulating.
But, do not provide any scheme that the VoIP business can be switched at DCH channel and HSDPA interchannel in the prior art, that is to say, behind the VoIP service access DCH channel that the user uses, even, current VoIP business can not switched on the HSDPA channel from the DCH channel because the user need strengthen transmitting power away from the base station yet.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of VoIP Traffic Channel switching controls, and the switching of control VoIP business from the DCH channel to the HSDPA channel, thereby the spectrum efficiency of raising whole system make the spectrum efficiency maximization.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of VoIP Traffic Channel switching controls is the VoIP traffic set DH channel switching timer of current access dedicated channel, sets maximum downstream transmitting power thresholding, may further comprise the steps:
A, monitoring also obtain the down transmitting power of VoIP business on dedicated channel;
Whether B, the professional down transmitting power of the VoIP that judge to obtain more than or equal to maximum downstream transmitting power thresholding, if, execution in step C then; Otherwise, reset after the DH channel switching timer, return steps A;
C, judge whether DH channel switching timer starts, if, execution in step D then; Otherwise, after the startup DH channel switching timer, return steps A;
D, judge whether DH channel switching timer is overtime, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
In addition, set the down transmitting power hysteresis, in step D, after the judgement DH channel switch overtime, this method further comprises step e 1:
E1, judge that whether the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
In addition, set the professional life-span cumulative distribution function curve of VoIP and the professional life-span thresholding of VoIP of the professional traffic model of current VoIP, in step D, after the judgement DH channel switch overtime, this method further comprises step e 2:
E2, the professional current duration of call of acquisition VoIP, on the professional life-span cumulative distribution function curve of VoIP, find the professional life-span cumulative distribution function value of corresponding VoIP according to the duration of call, judge whether the professional life-span cumulative distribution function value of VoIP is less than or equal to the professional life-span thresholding of VoIP, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
In addition, in step D, after the judgement DH channel switch overtime, this method further comprises step e 3:
E3, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
In addition, set the professional life-span cumulative distribution function curve of VoIP and the professional life-span thresholding of VoIP of the professional traffic model of current VoIP, in step e 1, after judging that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, this method further comprises step F 11:
F11, the professional current duration of call of acquisition VoIP, on the professional life-span cumulative distribution function curve of VoIP, find the professional life-span cumulative distribution function value of corresponding VoIP according to the duration of call, judge whether the professional life-span cumulative distribution function value of VoIP is less than or equal to the professional life-span thresholding of VoIP, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
In addition, in step e 1, judge that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum after, this method further comprises step F 12:
F12, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
In addition, set the down transmitting power hysteresis, in step e 2, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step F 21:
F21, judge that whether the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
In addition, in step e 2, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step F 22:
F22, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
In addition, in step F 11, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step G11:
G11, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
In addition, in step F 21, judge that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum after, this method further comprises step G21:
G21, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
Wherein, in the steps A, the professional down transmitting power of described acquisition VoIP is:
The professional down transmitting power of VoIP by the base station regularly reports obtains the professional down transmitting power of VoIP.
The method of a kind of VoIP Traffic Channel switching controls provided by the present invention, the user during gradually away from the base station, the VoIP business that the user is used switches to the HSDPA channel from the DCH channel, utilize the sharing characteristic of HSDPA channel, by sharing sign indicating number resource and power resource, and the use of high-order modulating, effectively utilized system resource, improved spectrum efficiency.In addition, the present invention is before switching to the HSDPA channel with the VoIP business from the DCH channel, situation when also taking into full account the user and using VoIP professional, will near cell edge and close to an end the conversation the user and under HSDPA channel resource condition of limited, the VoIP business that the user is used is retained on the DCH channel, do not carry out the VoIP business switches to the HSDPA channel from the DCH channel operation, so further increased the channel handover success rate, having reduced unnecessary channel switches, save system resource, improved spectrum efficiency.
Description of drawings
Fig. 1 is the flow chart of embodiment 1 of the present invention;
Fig. 2 is the flow chart of embodiment 2 of the present invention;
Fig. 3 is the flow chart of embodiment 3 of the present invention;
Fig. 4 is the flow chart of embodiment 4 of the present invention;
Fig. 5 is the flow chart of embodiment 5 of the present invention.
Embodiment
The professional situation that inserts the DCH channel at first of VoIP that the present invention only uses at the user.Behind the VoIP service access DCH channel that the user uses, when the direction away from the base station moved, then the professional required down transmitting power of this VoIP can increase the user who uses this VoIP business gradually gradually.If the professional required down transmitting power of this VoIP increases to a certain degree and keeps a period of time, network side then switches to the HSDPA channel with this VoIP business from the DCH channel.
When the VoIP business satisfies above-mentioned channel switching condition, it is also conceivable that simultaneously and use this VoIP service-user other factors in network, further control the VoIP business and switch to the HSDPA channel from the DCH channel.These factors comprise following some:
The first, the professional required down transmitting power of VoIP that uses as the user increases to a certain degree and after keeping a period of time, and is preferable, it is also conceivable that whether the user of this VoIP business is in the edge of sub-district.If this user is in the edge of sub-district, then the VoIP business that the user uses can be retained on the DCH channel, this is because because this user is in the edge of sub-district, therefore this user probably leaves the sub-district at any time, if the VoIP business of carrying out when switch the sub-district user being used the user switches to the HSDPA channel from the DCH channel, be very easy to cause the mistake in the channel switching, be unfavorable for effectively utilizing system resource, even can reduce the spectrum efficiency of whole system; If this user is not in the edge of sub-district, then can not consider the influence that this factor is switched channel.
The second, the professional required down transmitting power of VoIP that uses as the user increases to a certain degree and after keeping a period of time, preferable, it is also conceivable that whether the VoIP business that this user uses closes to an end, if close to an end, then preferably the VoIP business that this user uses is retained on the DCH channel this moment, this is because the VoIP business that closes to an end can not cause too much influence to system again, therefore should not carry out the switching from the DCH channel to the HSDPA channel; If the VoIP business is not to close to an end, then can not consider the influence that this factor is switched channel.
Three, prepare before channel switches when VoIP is professional, preferable, can prejudge whether the HSDPA channel of this moment has enough resources, if enough resources are arranged, then carry out channel and switch; If no, then do not carry out channel and switch, this is because under the situation of HSDPA channel resource deficiency, and the VoIP business is switched on the HSDPA channel, can increase the burden of system on the contrary, and the spectrum efficiency of system is descended.
Take all factors into consideration above factor, below method of the present invention is described in more detail by five preferred embodiments.Embodiment 1 described situation is, the professional required down transmitting power of VoIP that uses the user increases to a certain degree and after keeping a period of time, carries out the switching from the DCH channel to the HSDPA channel.Embodiment 2 described situations are, the professional required down transmitting power of VoIP that uses the user increases to a certain degree and after keeping a period of time, and the judgement that whether is in cell edge according to the user determines whether carrying out with the VoIP business switching from the DCH channel to the HSDPA channel again.Embodiment 3 described situations are, the professional required down transmitting power of VoIP that uses the user increases to a certain degree and after keeping a period of time, determines whether carrying out with the VoIP business switching from the DCH channel to the HSDPA channel according to whether the close to an end judgement of conversation of user again.Embodiment 4 described situations are, the professional required down transmitting power of VoIP that uses the user increases to a certain degree and after keeping a period of time, whether be in whether the close to an end judgement of conversation of cell edge and user according to the user again, determine whether carrying out with the VoIP business switching from the DCH channel to the HSDPA channel.Embodiment 5 described situations are, the professional required down transmitting power of VoIP that uses the user increases to a certain degree and after keeping a period of time, whether be in whether close to an end conversation and HSDPA channel of cell edge, user according to the user again and whether allow the judgement that inserts, determine whether carrying out with the VoIP business switching from the DCH channel to the HSDPA channel.
In these five preferred embodiments, only the situation of carrying out the channel switching controls at a VoIP business is described, and uses the user ID of this VoIP service-user to be j in this hypothesis, also can represent the VoIP business that user j uses with the professional j of VoIP simultaneously.
Fig. 1 is the flow chart of the embodiment of the invention 1.Before the flow process of carrying out as shown in Figure 1, need to preestablish maximum downstream transmitting power thresholding P at network side DL, MaxThAnd timer duration τ DHWherein, maximum downstream transmitting power thresholding P DL, MaxThBe that network side is used for weighing the value whether user j has set away from the base station, the method for measurement is with maximum downstream transmitting power thresholding P DL, MaxThWith the professional required down transmitting power P of the VoIP of user's use DL, jCompare, if P DL, j〉=P DL, MaxTh, then think the user j that uses the VoIP business away from the base station, otherwise, think that then the user j that uses the VoIP business is not also away from the base station; Timer duration τ DHBe to be used for weighing the professional required down transmitting power of VoIP that user j uses under situation about arriving to a certain degree, whether kept a period of time, if T DH〉=τ DH, the professional required down transmitting power of VoIP that user j use then is described has kept a period of time under situation about arriving to a certain degree, be presented as timer expiry, otherwise then timer is not overtime, wherein T DHBe timer time, whether overtime expression pick up counting the current timer a period of time of judging from timer.
Here, P DL, MaxThSetting can be according to the communication environments in the sub-district, the number of users in the sub-district and some other factor are set P making under the maximized prerequisite of resource utilization ratio DL, MaxThTimer duration then can be set according to the standard practice that the measured value shake is removed.The idiographic flow of embodiment 1 is as follows:
Step 101: when user j uses VoIP professional, the VoIP service access DCH channel that network side uses user j, and at the professional j setting of VoIP DH channel switching timer.
Step 102: the down transmitting power P of the professional j of the VoIP that network side regularly reports by base station node B DL, jThe down transmitting power of the professional j of monitoring VoIP is when network side is received the P that NodeB reports DL, jThe time, execution in step 103.
Step 103: judge the current P that reports DL, jWhether more than or equal to P DL, MaxTh, if then execution in step 105; Otherwise, execution in step 104.
Step 104: the DH channel switching timer that resets and set at the professional j of VoIP, and return step 102, wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.Wherein, even the DH channel switching timer of setting at the professional j of VoIP is not activated,, also carry out the operation of the DH channel switching timer that resets for the unification of flow process.
Step 105: judge whether the DH channel switching timer at the professional j of VoIP starts, if start then execution in step 107; Otherwise, execution in step 106.
Step 106: start the DH channel switching timer of setting at the professional j of VoIP, timer picks up counting.Then, return step 102 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Step 107: judge whether DH channel timer is overtime, if T DH〉=τ DH, the DH channel timer expiry of the professional j of VoIP then, execution in step 108; Otherwise, return step 102 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.T wherein DHBe timer time, whether overtime expression pick up counting the current timer a period of time of judging from timer.
Step 108: network side switches to the HSDPA channel with the professional j of VoIP from the DCH channel.
So far, the flow process of the embodiment of the invention 1 finishes.
Fig. 2 is the flow chart of the embodiment of the invention 2.Before the flow process of carrying out as shown in Figure 2, except needs preestablish maximum downstream transmitting power thresholding P DL, MaxThAnd timer duration τ DH, also need to set down transmitting power hysteresis Δ P DHDown transmitting power hysteresis Δ P DHBe used for weighing the edge whether user who uses the VoIP business is in the sub-district, if P DL, j＜P DL, MaxTh+ Δ P DH, then user j is not the edge that is in the sub-district, otherwise user j is in the edge of sub-district.Down transmitting power hysteresis Δ P DHCan set according to the trend that cell size, user shift out the sub-district.The idiographic flow of embodiment 2 is as follows:
Step 201～207: identical with the described method in step 101～107 among the embodiment 1, be not described in detail in this.
Step 208: judge whether P DL, j＜P DL, MaxTh+ Δ P DH, if then execution in step 209; Otherwise, return step 202 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Step 209: network side switches to the HSDPA channel with the professional j of VoIP from the DCH channel.
So far, the flow process of the embodiment of the invention 2 finishes.
In the flow process of embodiment 2, the present invention can also be when execution in step 208, whether does not carry out P DL, j＜P DL, MaxTh+ Δ P DHJudgement, and judge whether current HSDPA channel allows the professional j of VoIP to insert, if allow, then execution in step 209; Otherwise, return step 202 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.Perhaps, the present invention can also before the execution in step 209, judge further whether current HSDPA channel allows the professional j of VoIP to insert, if allow, then execution in step 209 after execution in step 208; Otherwise, return step 202 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.Wherein, judge that the method whether current HSDPA channel allows the professional j of VoIP to insert is, can judge according to the maximum combination property of number of users, HSDPA channel maximum bandwidth and system of supporting of HSDPA channel.
Fig. 3 is the flow chart of the embodiment of the invention 3.Before the flow process of carrying out as shown in Figure 3, except needs preestablish maximum downstream transmitting power thresholding P DL, MaxThAnd timer duration τ DH, also need to determine cumulative distribution function (CDF, the Cumulative Distribution Function) curve of the professional traffic model of VoIP, and set the professional life-span thresholding CDF of VoIP ThThe professional life-span thresholding CDF of VoIP ThBe that network side is used for weighing whether close to an end this VoIP business of user j, if CDF j〉=CDF Th, then think the user j VoIP business that closes to an end, otherwise, then think user j do not close to an end VoIP business, wherein CDF jBe the value of the duration of call on the professional life-span CDF curve of VoIP, the duration of call T here DCHWhether close to an end a period of time between the VoIP business to the current user of judgement j for insert the DCH channel as the professional j of VoIP.The professional life-span CDF curve of VoIP is the different different CDF curve that traffic model showed.Traffic model needs to determine according to the concrete condition of network.The professional life-span thresholding CDF of VoIP ThCan set according to analysis-by-synthesis traffic model.The idiographic flow of embodiment 3 is as follows:
Step 301～307: be with the difference of step 101 among the embodiment 1～107 described methods, in step 301, when VoIP service access DCH channel that network side uses user j, then begin to add up the duration of call T of user j DCH, the described step in step 101～107 is identical with method among other step and method and the embodiment 1, is not described in detail in this.
Step 308～309: the duration of call T current according to user j DCH, on the professional life-span CDF curve of VoIP, search and obtain corresponding C DF value CDF jAccording to searching the CDF that obtains j, judge whether CDF j≤ CDF Th, if then execution in step 310; Otherwise, return step 302 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Step 310: network side switches to the HSDPA channel with the professional j of VoIP from the DCH channel.
So far, the flow process of the embodiment of the invention 3 finishes.
In the flow process of embodiment 3, the present invention can also before the execution in step 310, judge further whether current HSDPA channel allows the professional j of VoIP to insert, if allow, then execution in step 310 after execution in step 309; Otherwise, return step 302 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Fig. 4 is the flow chart of the embodiment of the invention 4.Before the flow process of carrying out as shown in Figure 4, except needs preestablish maximum downstream transmitting power thresholding P DL, MaxThAnd timer duration τ DH, also need to set down transmitting power hysteresis Δ P DH, determine the professional traffic model CDF of VoIP curve, set the professional life-span thresholding CDF of VoIP ThMaximum downstream transmitting power thresholding P DL, MaxTh, timer duration τ DHWith down transmitting power hysteresis Δ P DH, the professional life-span thresholding CDF of VoIP ThMeaning and the concrete grammar of setting with to implement meaning and the method described in 1,2,3 identical, be not described in detail in this.The idiographic flow of embodiment 4 is as follows:
Step 401～407: identical with the described method in step 301～307 among the embodiment 3, be not described in detail in this.
Step 408: judge whether P DL, j＜P DL, MaxTh+ Δ P DH, if then execution in step 409; Otherwise, return step 402 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Step 409～410: the duration of call T current according to user j DCH, on the professional life-span CDF curve of VoIP, search and obtain corresponding C DF value CDF jAccording to searching the CDF that obtains j, judge whether CDF j≤ CDF Th, if then execution in step 411; Otherwise, return step 402 and wait for the NodeB professional j down transmitting power of VoIP P next time DL, jReport.
Step 411: network side switches to the HSDPA channel with the professional j of VoIP from the DCH channel.
So far, the flow process of the embodiment of the invention 4 finishes.
In embodiment 4 described flow processs, also can whether close to an end to converse to user j earlier and judge, again whether user j is judged at cell edge, and then whether carry out the switching from the DCH channel to the HSDPA channel with the VoIP business according to result's decision of judging, being about to step 409～410 is placed on before the step 408, carries out after the step 407, the concrete grammar of other steps is identical with the method described in the former step, is not described in detail in this.
Fig. 5 is the flow chart of the embodiment of the invention 5.Before the flow process of carrying out as shown in Figure 5, except needs preestablish maximum downstream transmitting power thresholding P DL, MaxThAnd timer duration τ DH, also need to set down transmitting power hysteresis Δ P DH, determine the professional traffic model CDF of VoIP curve, set the professional life-span thresholding CDF of VoIP ThMaximum downstream transmitting power thresholding P DL, MaxTh, timer duration τ DHWith down transmitting power hysteresis Δ P DH, the professional life-span thresholding CDF of VoIP ThMeaning and the concrete grammar of setting all with to implement meaning and the method described in 1,2,3 identical, be not described in detail in this.The idiographic flow of embodiment 5 is as follows:
Step 501～510: identical with the described method in step 401～410 among the embodiment 4, be not described in detail in this.
Step 511: network side judges whether current HSDPA channel allows the professional j of VoIP to insert, if allow, then execution in step 512; Otherwise, return step 502 and wait for NodeB P next time DL, jReport.
Step 512: network side switches to the HSDPA channel with the professional j of VoIP from the DCH channel.
So far, the flow process of the embodiment of the invention 5 finishes.
In embodiment 5 described flow processs, also can whether close to an end to converse to user j earlier and judge, again whether user j is judged at cell edge, and then whether carry out the switching from the DCH channel to the HSDPA channel with the VoIP business according to result's decision of judging, being about to step 509～510 is placed on before the step 508, carries out after the step 507, the concrete grammar of other steps is identical with the method described in the former step, is not described in detail in this.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (11)

1, a kind of method of VoIP Traffic Channel switching controls is characterized in that, is the VoIP traffic set DH channel switching timer of current access dedicated channel, sets maximum downstream transmitting power thresholding, may further comprise the steps:
A, monitoring also obtain the down transmitting power of VoIP business on dedicated channel;
Whether B, the professional down transmitting power of the VoIP that judge to obtain more than or equal to maximum downstream transmitting power thresholding, if, execution in step C then; Otherwise, reset after the DH channel switching timer, return steps A;
C, judge whether DH channel switching timer starts, if, execution in step D then; Otherwise, after the startup DH channel switching timer, return steps A;
D, judge whether DH channel switching timer is overtime, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
2, method according to claim 1 is characterized in that, sets the down transmitting power hysteresis, and in step D, after the judgement DH channel switch overtime, this method further comprises step e 1:
E1, judge that whether the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
3, method according to claim 1, it is characterized in that, set the professional life-span cumulative distribution function curve of VoIP and the professional life-span thresholding of VoIP of the professional traffic model of current VoIP, in step D, after judging DH channel switch overtime, this method further comprises step e 2:
E2, the professional current duration of call of acquisition VoIP, on the professional life-span cumulative distribution function curve of VoIP, find the professional life-span cumulative distribution function value of corresponding VoIP according to the duration of call, judge whether the professional life-span cumulative distribution function value of VoIP is less than or equal to the professional life-span thresholding of VoIP, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
4, method according to claim 1 is characterized in that, in step D, after the judgement DH channel switch overtime, this method further comprises step e 3:
E3, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
5, method according to claim 2, it is characterized in that, set the professional life-span cumulative distribution function curve of VoIP and the professional life-span thresholding of VoIP of the professional traffic model of current VoIP, in step e 1, after judging that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, this method further comprises step F 11:
F11, the professional current duration of call of acquisition VoIP, on the professional life-span cumulative distribution function curve of VoIP, find the professional life-span cumulative distribution function value of corresponding VoIP according to the duration of call, judge whether the professional life-span cumulative distribution function value of VoIP is less than or equal to the professional life-span thresholding of VoIP, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
6, method according to claim 2 is characterized in that, in step e 1, judge that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum after, this method further comprises step F 12:
F12, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
7, method according to claim 3 is characterized in that, sets the down transmitting power hysteresis, and in step e 2, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step F 21:
F21, judge that whether the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum, if then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel; Otherwise, return steps A.
8, method according to claim 3 is characterized in that, in step e 2, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step F 22:
F22, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
9, method according to claim 5 is characterized in that, in step F 11, after the professional life-span cumulative distribution function value of judgement VoIP was less than or equal to the professional life-span thresholding of VoIP, this method further comprised step G11:
G11, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
10, method according to claim 7 is characterized in that, in step F 21, judge that the professional down transmitting power of VoIP is less than maximum downstream transmitting power thresholding and down transmitting power hysteresis sum after, this method further comprises step G21:
G21, judge whether high-speed downlink packet access channel allows the VoIP service access,, then the VoIP business is switched to high-speed downlink packet access channel from dedicated channel if allow; Otherwise, return steps A.
According to the described method of arbitrary claim in the claim 1 to 10, it is characterized in that 11, in the steps A, the professional down transmitting power of described acquisition VoIP is:
The professional down transmitting power of VoIP by the base station regularly reports obtains the professional down transmitting power of VoIP.
CNB2005101095673A 2005-10-25 2005-10-25 Method of VoIP service channel switching control Active CN100442929C (en)

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