CN1988499B - Channel distribution method - Google Patents
Channel distribution method Download PDFInfo
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- CN1988499B CN1988499B CN200510130170.2A CN200510130170A CN1988499B CN 1988499 B CN1988499 B CN 1988499B CN 200510130170 A CN200510130170 A CN 200510130170A CN 1988499 B CN1988499 B CN 1988499B
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- 238000010295 mobile communication Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
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Abstract
The invention discloses a channel distribution method, which includes the following steps: a. It carries out special channel access control decisions and shared channel access control decision for the application of VoIP operation, and executes step b if they allow access VoIP operation at the same time, otherwise accesses the allowing channel or refusing access. b. It compares channel condition parameters and threshold to determine the quality of channel conditions, If the channel conditions are good, VoIP business will be accessed to special channel, otherwise to the sharing channel. The method can distribute channel for the application of VoIP operation reasonably.
Description
Technical field
The present invention relates to the access technology of VoIP business in the mobile communication system, the method for channel allocation in particularly a kind of VoIP business.
Background technology
Using IP voice-over (VoIP, Voice over IP) is to utilize a transmission technology that realizes Speech Communication based on the IP packet switching network of router.One of evolution trend of mobile communication system is the network all-IPization, comprising professional IPization.On mobile communication system, use voip technology, can save bandwidth, improve spectrum efficiency, can also provide unified interface and platform for speech and data.If dedicated channel and shared channel are arranged in the mobile communication system, the VoIP business both can be by the dedicated channel support, also can be by the shared channel support.Described shared channel is meant the same channel of a plurality of CUs, can be that time-division or sign indicating number divide or time-division and sign indicating number divide and deposit.Such as, conventional wireless communication systems (UMTS, UniversalMobile Telecommunication System) VoIP in, be to realize speech IP transmission end to end by UMTS, UMTS can use dedicated channel (DCH, Dedicated Channel) support VoIP, also can use shared channel is that high speed downlink packet access (HSDPA, High SpeedDownlink Packet Access) channel is supported VoIP.Described DCH can support session, stream, background, miscellaneous service such as mutual, also can support VoIP; High speed downlink packet inserts (HSDPA, High Speed Downlink Packet Access) channel has higher spectrum efficiency with respect to dedicated channel, but the design original intention of HSDPA channel is to be used for non real-time or to the insensitive business of time delay, if the VoIP business of supporting that data rate is less, delay requirement is higher on the HSDPA channel, moving just needs to consider the combined influence of factors such as time delay, spectrum efficiency, the sign indicating number level of resources utilization, power consumption.Be dispensed to the VoIP business of HSDPA channel, still need to use a related DCH that control information is provided, though related DCH power is little, also consumption systems sign indicating number resource and base station transmitting power.If the VoIP traffic assignments that consumed power is less, may cause the complicated scheduling scheme that a yard wasting of resources, spectrum efficiency descend, high time delay is brought or the like problem to the HSDPA channel.
The shortcoming of prior art is: the channel width abundance, when promptly channel condition is good, support the VoIP business by dedicated channel, and power consumption is little, but supports the power of VoIP business to increase by dedicated channel when channel condition is bad, and power consumption can increase.When channel condition is bad, support the VoIP business by shared channel such as the HSDPA channel, because the gross power of HSDPA channel is constant, can power controlling consumption, but when channel condition is good, if the VoIP traffic assignments that power consumption is less is to the HSDPA channel, owing to be dispensed to the business of HSDPA channel, still need to use a related DCH that control information is provided,, also can increase the consumption and the base station transmitting power of systematic code resource though the power of related DCH is little; And,, may cause degradation problem under a yard wasting of resources, the spectrum efficiency if channel toos many or too much for use when using the HSDPA channel because the sign indicating number that the HSDPA channel can insert divides number of users limited.When the professional application of VoIP inserted, the neither one scheme can be according to the VoIP traffic assignments channel of different demands for applying for inserting in the prior art.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of channel allocation, effective and reasonablely the VoIP traffic assignments channel of inserting for application.
Technical scheme of the present invention is achieved in that
A kind of method of channel allocation, described method comprises following steps:
A, the VoIP business that application is inserted are carried out dedicated channel access control judgement and shared channel access control judgement, if dedicated channel access control judgement and shared channel access control judgement allow to insert described VoIP business, then execution in step b simultaneously; Otherwise insert the channel or the refusal that allow to insert and insert process ends;
B, comparison channel condition parameter and channel condition thresholding are to determine the quality of channel condition; If channel condition is good, then with described VoIP service access dedicated channel; If channel condition is bad, then with described VoIP service access shared channel.
The described channel condition parameter of step b is the initial downlink transmitting power, and the channel condition thresholding is the minimum down transmitting power thresholding of VoIP;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial downlink transmitting power when estimating described VoIP service access dedicated channel according to pilot frequency intensity; The minimum down transmitting power thresholding of VoIP is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: whether judge the initial downlink transmitting power more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good.
The described channel condition parameter of step b is the initial channel quality indication, and the channel condition thresholding is a VoIP maximum channel quality indication thresholding;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial channel quality indication when estimating described VoIP service access shared channel according to pilot frequency intensity; VoIP maximum channel quality indication thresholding is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good.
The described channel condition parameter of step b is initial downlink transmitting power and initial channel quality indication, and the channel condition thresholding is minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality indication thresholding;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial downlink transmitting power when estimating described VoIP service access dedicated channel according to pilot frequency intensity; The minimum down transmitting power thresholding of VoIP is set; Obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial channel quality indication when estimating described VoIP service access shared channel according to pilot frequency intensity; VoIP maximum channel quality indication thresholding is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: judge whether the initial downlink transmitting power is set up less than VoIP maximum channel quality indication thresholding simultaneously more than or equal to minimum down transmitting power thresholding of VoIP and initial channel quality indication, if set up simultaneously, then channel condition is bad; If be false simultaneously, then channel condition is good; If have only an establishment, then the accuracy of two kinds of judgements thinking according to system determines that channel condition is good or bad.
Comprise before the step b: judge the initial downlink transmitting power is still indicated initial channel quality as the channel condition parameter as the channel condition parameter; If with the initial downlink transmitting power as the channel condition parameter, then with the minimum down transmitting power thresholding of VoIP as the channel condition thresholding; If as the channel condition parameter, then indicate thresholding as the channel condition thresholding VoIP maximum channel quality initial channel quality indication;
Correspondingly, with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that whether the initial downlink transmitting power is more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good;
Initial channel quality is indicated as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good.
Comprise before the step b: judge and only adopt the judgement of initial downlink transmitting power still only to adopt initial channel quality indication judgement still to adopt judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously; If only adopt initial downlink transmitting power judgement, then with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP as the channel condition thresholding; If only adopt initial channel quality indication judgement, then initial channel quality is indicated as the channel condition parameter, indicate thresholding as the channel condition thresholding VoIP maximum channel quality; If adopt judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously, then initial downlink transmitting power and initial channel quality are indicated respectively as the channel condition parameter, indicate thresholding as the channel condition thresholding minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality;
Correspondingly, with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that whether the initial downlink transmitting power is more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good;
Initial channel quality is indicated as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good;
Initial downlink transmitting power and initial channel quality are indicated respectively as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality indication thresholding during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge whether the initial downlink transmitting power is set up less than VoIP maximum channel quality indication thresholding simultaneously more than or equal to minimum down transmitting power thresholding of VoIP and initial channel quality indication, if set up simultaneously, then channel condition is bad; If be false simultaneously, then channel condition is good; If have only an establishment, then the accuracy of two kinds of judgements thinking according to system determines that channel condition is good or bad.
The initial downlink transmitting power as the channel condition parameter, during as the channel condition thresholding, is comprised the minimum down transmitting power thresholding of VoIP before the described step b:
Initial downlink transmitting power when the pilot frequency intensity of the VoIP business that inserts according to described application estimates described VoIP service access dedicated channel; The minimum down transmitting power thresholding of VoIP is set.
The initial channel quality indication as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, is comprised before the described step b:
Initial channel quality indication when the pilot frequency intensity of the VoIP business that inserts according to described application estimates described VoIP service access shared channel; VoIP maximum channel quality indication thresholding is set.
Inserting the channel or the refusal access that allow to insert described in the step a is specially:
If dedicated channel access control judgement allows to insert described VoIP business, and shared channel access control judgement refusal inserts described VoIP business, then inserts described VoIP business in dedicated channel; If dedicated channel access control judgement refusal inserts described VoIP business, and shared channel access control judgement allows to insert described VoIP business, then inserts described VoIP business at shared channel; If dedicated channel access control judgement and shared channel access control judgement refusal simultaneously insert described VoIP business, then refusal inserts described VoIP operation system.
Described shared channel is a high-speed downlink packet access channel.
The present invention is when having the professional application of VoIP to insert in the system, carry out the access control judgement of dedicated channel and two kinds of channels of shared channel earlier, if dedicated channel and shared channel all allow to insert this business, again the channel condition parameter that estimates and the channel condition threshold value of setting are compared, judge the quality of channel condition, if the result who judges is that channel condition is good, then with this VoIP service access dedicated channel, if the result who judges is that channel condition is bad, then with this VoIP service access shared channel.The present invention has following beneficial effect:
1) by taking all factors into consideration conditions such as a yard resource, power resource, spectrum efficiency, to dedicated channel or shared channel, the system that makes can more effectively support the VoIP business to improve spectrum efficiency, improve power system capacity with the professional reasonable distribution of the VoIP of application access.
2) utilize the method for channel allocation among the present invention, when channel condition was good, the VoIP service access dedicated channel that application can be inserted reach the effect that power is little, spectrum efficiency is high; When channel condition is bad, the VoIP service access shared channel that application can be inserted is such as the HSDPA channel, so that make full use of the advantage of Channel Sharing, specifically: send because VoIP is grouping, when using shared channel to be channel shared by multiple users, spectrum efficiency can be improved, and, power consumption can also be saved because the gross power of shared channel is constant.
Description of drawings
Fig. 1 is for using the process schematic diagram of initial downlink transmitting power judgement in the channel allocation among the present invention;
Fig. 2 is for using the process schematic diagram of initial channel quality indication judgement in the channel allocation among the present invention;
Fig. 3 is for using the process schematic diagram of judgement of initial downlink transmitting power or channel quality indication judgement in the channel allocation among the present invention.
Embodiment
Among the present invention, when having the professional application of VoIP to insert in the system, at first carry out the access control judgement of dedicated channel and two kinds of channels of shared channel, all refuse to insert if the result who judges is two kinds of channels, then refusal inserts this business; If have only a kind of channel to allow to insert, then this service access is allowed to insert this professional channel; If dedicated channel and shared channel all allow to insert this business, then the channel condition parameter that estimates and the channel condition threshold value of setting are compared, and the quality of judgement channel condition, if the result who judges is that channel condition is good, then with this VoIP service access dedicated channel, if the result who judges is that channel condition is bad, then with this VoIP service access shared channel.
Here, the quality of described judgement channel condition, can determine by the size that compares channel condition parameter and channel condition thresholding, such as: when using the judgement of initial downlink transmitting power, the channel condition parameter is the initial downlink transmitting power, and the channel condition thresholding is the minimum down transmitting power thresholding of VoIP; Also can use initial channel quality indication judgement, this moment, the channel condition parameter was the initial channel quality indication, and the channel condition thresholding is a VoIP maximum channel quality indication thresholding; Can also use initial downlink transmitting power or channel quality indication judgement, this moment, the channel condition parameter was initial downlink transmitting power or initial channel quality indication, and the channel condition thresholding is minimum down transmitting power thresholding of VoIP or VoIP maximum channel quality indication thresholding; Can also use initial downlink transmitting power and channel quality indication judgement simultaneously, this moment, the channel condition parameter was initial downlink transmitting power and initial channel quality indication, and the channel condition thresholding is minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality indication thresholding.
Following with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Embodiment 1: use the judgement of initial downlink transmitting power, present embodiment is applicable to UMTS.
Fig. 1 is the process schematic diagram that uses the judgement of initial downlink transmitting power in the channel allocation, and process shown in Figure 1 comprises following steps:
The professional j application of step 101:VoIP inserts.
The VoIP business that application inserts can be a lot, and the professional j of VoIP described in the step 101 is meant one of them, are called the professional j of VoIP herein.
Step 102: the initial downlink transmitting power P when estimating VoIP business j access
Ini, j
In the step 102, can utilize several different methods of the prior art, estimate P
Ini, j, the pilot frequency intensity when normally the professional j of elder generation's acquisition VoIP applies for inserting, and suppose to have only DCH can insert VoIP business j, the P when estimating the professional j access of VoIP DCH according to pilot frequency intensity again
Ini, j
Step 103: the professional j of VoIP is carried out DCH access control judgement and HSDPA channel access control judgement; If DCH access control judgement and HSDPA channel access control judgement refusal simultaneously insert the professional j of VoIP, then refusal inserts the professional j of VoIP, process ends; If DCH access control judgement allows to insert the professional j of VoIP, and HSDPA channel access control judgement refusal inserts the professional j of VoIP, then inserts the professional j of VoIP, process ends at DCH; If DCH access control judgement refusal inserts the professional j of VoIP, and HSDPA channel access control judgement allows to insert the professional j of VoIP, then inserts the professional j of VoIP, process ends at the HSDPA channel; If DCH and HSDPA channel access control judgement allow to insert the professional j of VoIP simultaneously, then execution in step 104.
In the step 103, DCH access control decision algorithm and HSDPA channel access control decision algorithm can utilize several different methods of the prior art, such as according to number of users or according to power etc., normally use the access solicited message of the professional j of VoIP to carry out the access control judgement, comprising DCH access control judgement and HSDPA channel access control judgement by the access control module of network side.
Step 104: the minimum down transmitting power thresholding of VoIP P is set
DL, MinTh
In the step 104, P
DL, MinThCan be provided with according to the principle that guarantees the whole system resources optimization, be provided with such as principle according to throughput and spectrum efficiency maximization or minimum power or throughput and power trade-offs selection.
Step 105: judge P
Ini, jWhether more than or equal to the P that is provided with in the step 104
DL, MinThIf, P
Ini, j〉=P
DL, MinTh, then insert the professional j of VoIP at the HSDPA channel; If P
Ini, j＜P
DL, MinTh, then insert the professional j of VoIP at DCH.
Less P
Ini, jExpression, the professional j of this VoIP is near base station location or channel condition good.If this traffic assignments to the HSDPA channel, is considered the delay requirement restriction of voice service, the HSDPA channel may not fully use its good transmission conditions, thereby causes lower spectrum efficiency.In addition, the VoIP traffic assignments that descending DCH possibility consumed power is less still needs may can consume more sign indicating number resource and power thus on the contrary for it uses a related DCH to the HSDPA channel.Therefore in the step 105, if P
Ini, j〉=P
DL, MinTh, think that then channel condition is bad, and with P
Ini, jMore than or equal to P
DL, MinThThe professional j of VoIP be dispensed to the HSDPA channel; If instead P
Ini, j＜P
DL, MinTh, think that then channel condition is good, and with P
Ini, jLess than P
DL, MinThThe professional j of VoIP be dispensed to DCH.
In the present embodiment, P
Ini, jValue can be used for DCH access control judgement.During practical application, P
Ini, jValue also can be not used in the DCH access control judgement, work as P
Ini, jValue when being not used in the DCH access control judgement, step 102 can be carried out on the optional position between step 101 and the step 105.
Embodiment 2: use initial channel quality indication judgement, present embodiment is applicable to UMTS.
Fig. 2 is the process schematic diagram that uses initial channel quality indication judgement in the channel allocation, and process shown in Figure 2 comprises following steps:
The professional j application of step 201:VoIP inserts.
Step 202: the initial channel quality indication CQI when estimating VoIP business j access
Ini, j
In the step 202, can utilize several different methods of the prior art, estimate CQI
Ini, j, the pilot frequency intensity when normally the professional j of elder generation's acquisition VoIP applies for inserting, and suppose to have only the HSDPA channel can insert VoIP business j, the CQI when estimating the professional j access of VoIP HSDPA channel according to pilot frequency intensity again
Ini, j
Step 203: the professional j of VoIP is carried out DCH access control judgement and HSDPA channel access control judgement; If DCH access control judgement and HSDPA channel access control judgement refusal simultaneously insert the professional j of VoIP, then refusal inserts the professional j of VoIP, process ends; If DCH access control judgement allows to insert the professional j of VoIP, and HSDPA channel access control judgement refusal inserts the professional j of VoIP, then inserts the professional j of VoIP, process ends at DCH; If DCH access control judgement refusal inserts the professional j of VoIP, and HSDPA channel access control judgement allows to insert the professional j of VoIP, then inserts the professional j of VoIP, process ends at the HSDPA channel; If DCH and HSDPA channel access control judgement allow to insert the professional j of VoIP simultaneously, then execution in step 204.
In the step 203, DCH access control decision algorithm and HSDPA channel access control decision algorithm can utilize several different methods of the prior art, such as according to number of users or according to power etc., normally use the access solicited message of the professional j of VoIP to carry out the access control judgement, comprising DCH access control judgement and HSDPA channel access control judgement by the access control module of network side.
Step 204: VoIP maximum channel quality indication thresholding CQI is set
J, MaxTh
In the step 204, CQI
J, MaxThCan be provided with according to the principle that guarantees the whole system resources optimization, be provided with such as principle according to throughput and spectrum efficiency maximization or minimum power or throughput and power trade-offs selection.
Step 205: judge CQI
Ini, jWhether indicate thresholding CQI less than the VoIP maximum channel quality that is provided with
J, MaxThIf, CQI
Ini, j＜CQI
J, MaxTh, then insert the professional j of VoIP at the HSDPA channel; If CQI
Ini, j〉=CQI
J, MaxTh, then insert the professional j of VoIP at DCH.
Bigger CQI
Ini, jExpression, this VoIP service-user are near base station location or channel condition good.Therefore in the step 205, if CQI
Ini, j＜CQI
J, MaxTh, think that then channel condition is bad, and with CQI
Ini, jLess than CQI
J, MaxThThe professional j of VoIP be dispensed to the HSDPA channel; If instead CQI
Ini, j〉=CQI
J, MaxTh, think that then channel condition is good, and with CQI
Ini, jMore than or equal to CQI
J, MaxThThe professional j of VoIP be dispensed to DCH.
In the present embodiment, CQI
Ini, jValue can be used for HSDPA channel access control judgement.During practical application, CQI
Ini, jValue also can be not used in the HSDPA channel access control judgement, work as CQI
Ini, jValue when being not used in the HSDPA channel access control judgement, step 202 can be carried out on the optional position between step 201 and the step 205.
Step 204 also can be carried out the optional position before step 203 except as shown in Figure 2 between step 203 and step 205.
Embodiment 3: use the indication of initial downlink transmitting power or channel quality, present embodiment is applicable to UMTS.
Fig. 3 is the process schematic diagram that uses judgement of initial downlink transmitting power or channel quality indication judgement in the channel allocation, and process shown in Figure 3 comprises following steps:
The professional j application of step 301:VoIP inserts.
Step 302: the initial downlink transmitting power P when estimating VoIP business j access
Ini, jWith initial channel quality indication CQI
Ini, j
In the step 302, can utilize several different methods of the prior art, estimate P
Ini, jAnd CQI
Ini, j, the pilot frequency intensity when normally obtaining earlier the professional j application of VoIP and inserting, and hypothesis has only DCH can insert behind the professional j of VoIP according to pilot frequency intensity to estimate the P of the professional j of VoIP when inserting DCH
Ini, j, suppose to have only the HSDPA channel can insert behind the professional j of VoIP and estimate the CQI of the professional j of VoIP when inserting the HSDPA channel according to pilot frequency intensity
Ini, j
Step 303: the professional j of VoIP is carried out DCH access control judgement and HSDPA channel access control judgement; If DCH access control judgement and HSDPA channel access control judgement refusal simultaneously insert the professional j of VoIP, then refusal inserts the professional j of VoIP, process ends; If DCH access control judgement allows to insert the professional j of VoIP, and HSDPA channel access control judgement refusal inserts the professional j of VoIP, then inserts the professional j of VoIP, process ends at DCH; If DCH access control judgement refusal inserts the professional j of VoIP, and HSDPA channel access control judgement allows to insert the professional j of VoIP, then inserts the professional j of VoIP, process ends at the HSDPA channel; If DCH and HSDPA channel access control judgement allow to insert the professional j of VoIP simultaneously, then execution in step 304.
In the step 303, DCH access control decision algorithm and HSDPA channel access control decision algorithm can utilize several different methods of the prior art, such as according to number of users or according to power etc., normally use the access solicited message of the professional j of VoIP to carry out the access control judgement, comprising DCH access control judgement and HSDPA channel access control judgement by the access control module of network side.
Step 304: judge and use still initial channel quality indication judgement of initial downlink transmitting power judgement, if use the judgement of initial downlink transmitting power, execution in step 305; If use initial channel quality indication judgement, execution in step 307.
During practical application, judge and use still initial channel quality indication judgement of initial downlink transmitting power judgement, can select according to prior being provided with of system, such as: when system is provided with in advance and uses the judgement of initial downlink transmitting power, use the judgement of initial downlink transmitting power, system is provided with when using initial channel quality indication judgement in advance, uses initial channel quality indication judgement.
Step 305: the minimum down transmitting power thresholding of VoIP P is set
DL, MinTh
In the step 305, P
DL, MinThCan be provided with according to the principle that guarantees the whole system resources optimization, be provided with such as principle according to throughput and spectrum efficiency maximization or minimum power or throughput and power trade-offs selection.
Step 306: judge P
Ini, jWhether more than or equal to the P that is provided with
DL, MinThIf, P
Ini, j〉=P
DL, MinTh, then insert the professional j of VoIP, process ends at the HSDPA channel; If P
Ini, j＜P
DL, MinTh, then insert the professional j of VoIP, process ends at DCH.
In the step 306, if P
Ini, j〉=P
DL, MinTh, think that then channel condition is bad, and with P
Ini, jMore than or equal to P
DL, MinThThe professional j of VoIP be dispensed to the HSDPA channel; If instead P
Ini, j＜P
DL, MinTh, think that then channel condition is good, and with P
Ini, jLess than P
DL, MinThThe professional j of VoIP be dispensed to DCH.
Step 307: VoIP maximum channel quality indication thresholding CQI is set
J, MaxTh
In the step 307, CQI
J, MaxThCan be provided with according to the principle that guarantees the whole system resources optimization, be provided with such as principle according to throughput and spectrum efficiency maximization or minimum power or throughput and power trade-offs selection.
Step 308: judge CQI
Ini, jWhether indicate thresholding CQI less than the VoIP maximum channel quality that is provided with
J, MaxThIf, CQI
Ini, j＜CQI
J, MaxTh, then insert the professional j of VoIP at the HSDPA channel; If CQI
Ini, j〉=CQI
J, MaxTh, then insert the professional j of VoIP at DCH.
In the step 308, if CQI
Ini, j＜CQI
J, MaxTh, think that then channel condition is bad, and with CQI
Ini, jLess than CQI
J, MaxThThe professional j of VoIP be dispensed to the HSDPA channel; If instead CQI
Ini, j〉=CQI
J, MaxTh, think that then channel condition is good, and with CQI
Ini, jMore than or equal to CQI
J, MaxThThe professional j of VoIP be dispensed to DCH.
In the present embodiment, P
Ini, jValue can be used for DCH access control judgement, CQI
Ini, jValue can be used for HSDPA channel access control judgement.During practical application, P
Ini, jValue also can be not used in the DCH access control judgement CQI
Ini, jValue also can be not used in the HSDPA channel access control judgement, in this case, the step 302 among Fig. 3 can be carried out on the optional position between step 301 and the step 306; In the step 302, estimate CQI
Ini, jStep can also be between step 306 and the step 307 or between step 307 and step 308.
In the present embodiment, step 304 also can be: judge and only use the judgement of initial downlink transmitting power, still only use initial channel quality indication judgement, still use judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously.Wherein, if use judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously, then need to judge simultaneously P
Ini, j〉=P
DL, MinThAnd CQI
Ini, j＜CQI
J, MaxThWhether set up,, then insert the professional j of VoIP at the HSDPA channel if set up simultaneously; If be false simultaneously, then insert the professional j of VoIP at DCH; If have only an establishment, the factors such as accuracy of two kinds of judgements can thinking according to system then, insert the professional j of VoIP or insert the professional j of VoIP at the HSDPA channel at DCH, wherein will be judged as the professional j of the bad VoIP of channel condition and insert the HSDPA channel, insert DCH being judged as the professional j of the good VoIP of channel condition.
In the present embodiment, also can not use the judgement of initial downlink transmitting power still is the judgement of initial channel quality indication judgement, but directly uses judgement of initial downlink transmitting power and initial channel quality indication judgement also can simultaneously.When using judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously, need judge P simultaneously
Ini, j〉=P
DL, MinThAnd CQI
Ini, j＜CQI
J, MaxThWhether set up,, then insert the VoIP business at the HSDPA channel if set up simultaneously; If be false simultaneously, then insert the VoIP business at DCH; If have only an establishment, the factors such as accuracy of two kinds of judgements can thinking according to system then, insert the professional j of VoIP or insert the professional j of VoIP at the HSDPA channel at DCH, the professional j of bad VoIP that wherein will be judged as channel condition inserts the HSDPA channel, inserts DCH with being judged as the professional j of the good VoIP of channel condition.
Among the present invention, different initial downlink transmitting power algorithm for estimating, the different initial channel qualities indication value of reporting algorithm for estimating, different DCH access control decision algorithms, different HSDPA channel access control decision algorithms, the different values of the minimum down transmitting power thresholding of VoIP, the different values of VoIP maximum channel quality indication thresholding all do not influence the use of method for channel allocation among the present invention.
Except in the UMTS system, the present invention can also be applicable to similar UMTS, while and deposit dedicated channel and other wireless communication systems of shared channel in.
The above is preferred embodiment of the present invention only, is not to be used to limit the scope of application of the present invention.
Claims (10)
1. the method for a channel allocation is characterized in that, described method comprises following steps:
A, the VoIP business that application is inserted are carried out dedicated channel access control judgement and shared channel access control judgement, if dedicated channel access control judgement and shared channel access control judgement allow to insert described VoIP business, then execution in step b simultaneously; Otherwise insert the channel or the refusal that allow to insert and insert process ends;
B, comparison channel condition parameter and channel condition thresholding are to determine the quality of channel condition; If channel condition is good, then with described VoIP service access dedicated channel; If channel condition is bad, then with described VoIP service access shared channel.
2. method according to claim 1 is characterized in that, the described channel condition parameter of step b is the initial downlink transmitting power, and the channel condition thresholding is the minimum down transmitting power thresholding of VoIP;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial downlink transmitting power when estimating described VoIP service access dedicated channel according to pilot frequency intensity; The minimum down transmitting power thresholding of VoIP is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: whether judge the initial downlink transmitting power more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good.
3. method according to claim 1 is characterized in that, the described channel condition parameter of step b is the initial channel quality indication, and the channel condition thresholding is a VoIP maximum channel quality indication thresholding;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial channel quality indication when estimating described VoIP service access shared channel according to pilot frequency intensity; VoIP maximum channel quality indication thresholding is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good.
4. method according to claim 1, it is characterized in that, the described channel condition parameter of step b is initial downlink transmitting power and initial channel quality indication, and the channel condition thresholding is minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality indication thresholding;
Comprise before the described step b: obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial downlink transmitting power when estimating described VoIP service access dedicated channel according to pilot frequency intensity; The minimum down transmitting power thresholding of VoIP is set; Obtain the pilot frequency intensity of the VoIP business that described application inserts, and the initial channel quality indication when estimating described VoIP service access shared channel according to pilot frequency intensity; VoIP maximum channel quality indication thresholding is set;
Correspondingly, the quality of the described definite channel condition of step b is specially: judge whether the initial downlink transmitting power is set up less than VoIP maximum channel quality indication thresholding simultaneously more than or equal to minimum down transmitting power thresholding of VoIP and initial channel quality indication, if set up simultaneously, then channel condition is bad; If be false simultaneously, then channel condition is good; If have only an establishment, then the accuracy of two kinds of judgements thinking according to system determines that channel condition is good or bad.
5. method according to claim 1 is characterized in that,
Comprise before the step b: judge the initial downlink transmitting power is still indicated initial channel quality as the channel condition parameter as the channel condition parameter; If with the initial downlink transmitting power as the channel condition parameter, then with the minimum down transmitting power thresholding of VoIP as the channel condition thresholding; If as the channel condition parameter, then indicate thresholding as the channel condition thresholding VoIP maximum channel quality initial channel quality indication;
Correspondingly, with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that whether the initial downlink transmitting power is more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good;
Initial channel quality is indicated as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good.
6. method according to claim 1 is characterized in that,
Comprise before the step b: judge and only adopt the judgement of initial downlink transmitting power still only to adopt initial channel quality indication judgement still to adopt judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously; If only adopt initial downlink transmitting power judgement, then with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP as the channel condition thresholding; If only adopt initial channel quality indication judgement, then initial channel quality is indicated as the channel condition parameter, indicate thresholding as the channel condition thresholding VoIP maximum channel quality; If adopt judgement of initial downlink transmitting power and initial channel quality indication judgement simultaneously, then initial downlink transmitting power and initial channel quality are indicated respectively as the channel condition parameter, indicate thresholding as the channel condition thresholding minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality;
Correspondingly, with the initial downlink transmitting power as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that whether the initial downlink transmitting power is more than or equal to the minimum down transmitting power thresholding of VoIP, if more than or equal to, then channel condition is bad; If less than, then channel condition is good;
Initial channel quality is indicated as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge that initial channel quality indicates whether less than VoIP maximum channel quality indication thresholding, if less than, then channel condition is bad; If be not less than, then channel condition is good;
Initial downlink transmitting power and initial channel quality are indicated respectively as the channel condition parameter, with the minimum down transmitting power thresholding of VoIP and VoIP maximum channel quality indication thresholding during as the channel condition thresholding, the quality of the described definite channel condition of step b is specially: judge whether the initial downlink transmitting power is set up less than VoIP maximum channel quality indication thresholding simultaneously more than or equal to minimum down transmitting power thresholding of VoIP and initial channel quality indication, if set up simultaneously, then channel condition is bad; If be false simultaneously, then channel condition is good; If have only an establishment, then the accuracy of two kinds of judgements thinking according to system determines that channel condition is good or bad.
7. according to claim 5 or 6 described methods, it is characterized in that, the initial downlink transmitting power as the channel condition parameter, during as the channel condition thresholding, is comprised the minimum down transmitting power thresholding of VoIP before the described step b:
Initial downlink transmitting power when the pilot frequency intensity of the VoIP business that inserts according to described application estimates described VoIP service access dedicated channel; The minimum down transmitting power thresholding of VoIP is set.
8. according to claim 5 or 6 described methods, it is characterized in that, the initial channel quality indication as the channel condition parameter, when VoIP maximum channel quality is indicated thresholding as the channel condition thresholding, comprised before the described step b:
Initial channel quality indication when the pilot frequency intensity of the VoIP business that inserts according to described application estimates described VoIP service access shared channel; VoIP maximum channel quality indication thresholding is set.
9. according to each described method in the claim 1 to 6, it is characterized in that, insert the channel or the refusal access that allow to insert described in the step a and be specially:
If dedicated channel access control judgement allows to insert described VoIP business, and shared channel access control judgement refusal inserts described VoIP business, then inserts described VoIP business in dedicated channel; If dedicated channel access control judgement refusal inserts described VoIP business, and shared channel access control judgement allows to insert described VoIP business, then inserts described VoIP business at shared channel; If dedicated channel access control judgement and shared channel access control judgement refusal simultaneously insert described VoIP business, then refusal inserts described VoIP operation system.
10. according to each described method in the claim 1 to 6, it is characterized in that described shared channel is a high-speed downlink packet access channel.
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