CN101170539A - Channel allocation method and device carrying VoIP service - Google Patents
Channel allocation method and device carrying VoIP service Download PDFInfo
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- CN101170539A CN101170539A CNA2007101788981A CN200710178898A CN101170539A CN 101170539 A CN101170539 A CN 101170539A CN A2007101788981 A CNA2007101788981 A CN A2007101788981A CN 200710178898 A CN200710178898 A CN 200710178898A CN 101170539 A CN101170539 A CN 101170539A
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Abstract
The invention discloses the channel distribution method loading VoIP business, which comprises the following steps: in the sub-channel used for loading business data, whether the sub-channel of which the interference is smaller than the interference of the prior sub-channel loaded with the VoIP business data is exist or not is judged, as well as whether the sub-channel meeting the need of the VoIP business data loaded band width is exist or not is judged. If the sub-channel is existed, one part of the sub-channel is selected and assigned to the VoIP business data which is to be transmitted; otherwise, the prior sub-channel loaded the VoIP business data is assigned to the VoIP business data which is to be transmitted. The invention also discloses a channel assigning device loaded VoIP business. With the method provided in the invention, the probability that AMC and ARQ are started because of the deterioration of channel environment is reduced; therefore, additional transmission delay is reduced, and QOS transmitting the VoIP business data is guaranteed.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to carrying VoIP (Voice over IP) professional method for channel allocation and device.
Background technology
VoIP (Voice over IP) is a kind of based on IP phone, and releases the technology of corresponding value-added service.Its basic principle is exactly: based on speech coding algorithm the analog voice signal of first speaker is carried out encoding compression processing, pack by the speech data of host-host protocol after then to encoding compression, VoP after the packing is transferred to the destination through IP network, the purpose receiving terminal unpacks and restores speech data with the IP packet of receiving, through the decoding decompression processing, revert to original voice signal.Adopt voip technology, can dwindle speech data greatly requirements for transmission.Under identical transmission bandwidth, the number of users that adopts voip technology to hold is 5～8 times of conventional telecommunications net.
On IP network, provide speech business, key will guarantee service quality exactly (QOS, Quality ofService).For voip phone, be exactly to require to guarantee end-to-end time delay less than 400ms, the data Packet Error Ratio is less than 8%.
Whole world inserting of microwave inter-operation system (WiMAX, Worldwide Interoperation forMicrowave Access) is a kind of wireless access wide band technology, and its technical standard is IEEE802.16d and 802.16e.802.16d/802.16e defined the standard of interface physical layer (PHY) and medium access control layer (MAC) in fixing/mobile wireless connecting system respectively.Along with the continuous popularization that Wireless VoIP is used, the demand of carrying VoIP service is also day by day urgent on the WiMAX network.The difficult point of carrying VoIP service is that system is to QOS assurance end to end in the VoIP service conversation on the WiMAX network.802.16 how not describe carrying VoIP service on the WiMAX network in the agreement.
WirelessMAN-OFDMA is a kind of WiMAX PHY of system mode of operation of 802.16 definition, and it comprises 2048 subcarriers, and wherein the available subcarrier down link is 1702, and up link is 1696.In WirelessMAN-OFDMA, a plurality of users use all subcarriers jointly, and the distribution of subcarrier is undertaken by the subchannel mode.System comprises 32 subchannels altogether.When the terminal to apply frequency resource, the base station is one or more subchannels of this terminal distribution, and data service is just transmitted on the subchannel that is distributed, and the transmission of VOIP business also is like this.
Usually the channel allocation mode of WiMAX system has two kinds: grouped channels distributes and the AFH channel allocation.It is the bandwidth application of base station according to the user that grouped channels distributes, and one or more subchannels are distributed to the user, and the user sends data on the subchannel of this distribution; The AFH channel allocation is that the user is issued with a kind of channel hopping rule in the base station, and the user sends data according to the saltus step rule of distributing at every turn on different subchannels.
Existing WiMAX system adopts the scheduling of ErtPS (Extended real-time PollingService) and UGS (Unsolicited Grant Service) realization to the VoIP business at the VoIP business.For the UGS scheduling mode, the WiMAX system does not remake channel allocation and channel switching in a single day for the link both sides of VoIP business have distributed subchannel according to the packet allocation mode in the process of transmission VoIP business, such as, terminal U
1To WiMAX system request and terminal U
2Transmission VoIP business, the WiMAX system is terminal U
1With terminal U
2Distribute transmission subchannel, supposed terminal U
1With terminal U
2Need transmit 35 VoIP business packet in the professional transmission course of this VoIP, then 35 VoIP business packet take all the time and are initially terminal U
1With terminal U
2The subchannel that distributes, when the channel circumstance of carrying VoIP service worsens, system start-up (AMC, Adaptive Modulation and Code) and (ARQ, Hybrid Automation RepeatreQuest) mechanism, the startup of AMC and ARQ mechanism can be introduced the additional transmitted time delay, and then influences the QOS of VoIP business.For the ErtPS scheduling mode, the subchannel that transmits these 35 VoIP business packet may be different, because the channel allocation of base station under this scheduling mode is at random, that is to say terminal U
1With terminal U
2Between 1 VoIP business packet of every transmission, the base station is just distributed subchannel one time.As long as idle subchannel is arranged, the base station is with regard to response terminal U
1With terminal U
2The bandwidth application of sending, and allocated sub-channels resource.In this case, when the channel circumstance of carrying VoIP service worsened, system also started AMC and ARQ mechanism, and the startup of AMC and ARQ mechanism also can be introduced the additional transmitted time delay, and then influences the QOS of VoIP business.
At present, not only there are the problems referred to above in the WiMAX system, other adopt OFDM (OFDM, Orthogonal Frequency Division Multiplex), OFDM inserts in (OFDMA, Orthogonal Frequency Division Multiplex Access) broadband wireless data transmission system as physical-layer techniques and all has the problems referred to above.
Summary of the invention
The invention provides the method for channel allocation and the device of carrying VoIP service, when worsening, reduce the chance of system start-up AMC and ARQ mechanism, reduce propagation delay time, and then guarantee the QOS of VoIP business in order to channel circumstance at carrying VoIP service.
A kind of method for channel allocation of carrying VoIP service comprises:
At the subchannel that is used for the bearer service data, judge whether to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
If exist, disturb little and satisfy chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement at subchannel than current carrying VoIP service data, and
The subchannel of selecting is distributed to VoIP business datum waiting for transmission; Otherwise
The subchannel of current carrying VoIP service data is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Judging unit is used at the subchannel that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judgment unit judges result when existing, and disturbs little and satisfies chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement at the subchannel than current carrying VoIP service data;
First allocation units are used for the subchannel that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Judging unit is used in the idle sub-channels that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judged result of judging unit when existing, and disturbs little and satisfies in the idle sub-channels of VoIP business datum carrying bandwidth requirement and select idle sub-channels at the subchannel than current carrying VoIP service data;
First allocation units are used for the idle sub-channels that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
A kind of method for channel allocation of carrying VoIP service comprises:
At the subchannel that is used for the bearer service data, select to satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
In the subchannel of selecting, select to disturb minimum subchannel;
The subchannel of the interference minimum selected is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
First selected cell is used at the subchannel that is used for the bearer service data, selects to satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the subchannel selected at first selected cell, selects to disturb minimum subchannel;
Allocation units, the subchannel that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
First selected cell is used in the idle sub-channels that is used for the bearer service data, selects to satisfy the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the idle sub-channels selected at first selected cell, selects to disturb minimum idle sub-channels;
Allocation units, the idle sub-channels that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
A kind of method for channel allocation of carrying VoIP service comprises:
At the subchannel that is used for the bearer service data, sort according to the interference value of each subchannel;
According to each subchannel interference value order from small to large, first satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
The subchannel that described poll goes out is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from small to large, and first satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from small to large, and first satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
A kind of method for channel allocation of carrying VoIP service comprises:
At the subchannel that is used for the bearer service data, sort according to the interference value of each subchannel;
According to each subchannel interference value order from big to small, last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
The subchannel that described poll goes out is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from big to small, and last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
A kind of channel dividing arrangement of carrying VoIP service comprises:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from big to small, and last satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
The method for channel allocation of carrying VoIP service provided by the invention, disturb little than the subchannel of current carrying VoIP service data and when satisfying the subchannel of VoIP business datum carrying bandwidth requirement judging existence, disturbing little than the subchannel of current carrying VoIP service data and satisfying chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement, and it is being distributed to VoIP business datum waiting for transmission; Otherwise, still the subchannel of current carrying VoIP service data is distributed to VoIP business datum waiting for transmission.By this method, reduced because of channel circumstance worsens the probability that starts AMC and ARQ, thereby reduced because of starting the additional transmitted time delay that AMC and ARQ introduce, guaranteed the QOS of transmission VoIP business datum.
Description of drawings
The method for channel allocation flow chart of a kind of carrying VoIP service that Fig. 1 provides for the embodiment of the invention 1;
Fig. 2 is applied to the flow chart of VoIP business datum uplink for the method for channel allocation of the carrying VoIP service in the embodiment of the invention 1;
Fig. 3 is applied to the flow chart of VoIP business datum downlink transfer for the method for channel allocation of the carrying VoIP service in the embodiment of the invention 1;
The channel dividing arrangement structure chart of a kind of carrying VoIP service that Fig. 4 provides for the embodiment of the invention 1;
The method for channel allocation flow chart of a kind of carrying VoIP service that Fig. 5 provides for the embodiment of the invention 2;
The channel dividing arrangement structure chart of a kind of carrying VoIP service that Fig. 6 provides for the embodiment of the invention 2;
The method for channel allocation flow chart of a kind of carrying VoIP service that Fig. 7 provides for the embodiment of the invention 3;
The channel dividing arrangement structure chart of a kind of carrying VoIP service that Fig. 8 provides for the embodiment of the invention 3,4;
The method for channel allocation flow chart of a kind of carrying VoIP service that Fig. 9 provides for the embodiment of the invention 4;
Figure 10 is applied to the flow chart of VoIP business datum uplink for the method for channel allocation of the carrying VoIP service in the embodiment of the invention 2,3,4;
Figure 11 is applied to the flow chart of VoIP business datum downlink transfer for the method for channel allocation of the carrying VoIP service in the embodiment of the invention 2,3,4.
Embodiment
At the problem that the method for channel allocation of carrying VoIP service in the prior art exists, the embodiment of the invention has proposed the VoIP business datum is carried on method on the less subchannel of current interference all the time.
Be elaborated below in conjunction with the embodiment of accompanying drawing to the embodiment of the invention.
Embodiment 1
The embodiment of the invention 1 provides a kind of method for channel allocation of carrying VoIP service, its flow process as shown in Figure 1, concrete steps are as follows:
Wherein, deterministic process in the step 110 can judge whether to exist the subchannel than current carrying VoIP service data to disturb little subchannel earlier, if do not exist, then need not to judge whether again to exist the subchannel that satisfies VoIP business datum carrying bandwidth requirement, and directly judgement does not exist subchannel than current carrying VoIP service data to disturb little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement; Otherwise
Judgement is disturbed in the little subchannel at described subchannel than current carrying VoIP service data, whether the subchannel that the VoIP business datum is carried bandwidth requirement is satisfied in existence, if do not exist, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement; Otherwise, judge to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement.
In addition, deterministic process in the step 110 can also judge whether to exist the subchannel that satisfies VoIP business datum carrying bandwidth requirement earlier, if do not exist, then need not to judge whether to exist subchannel to disturb little subchannel, and directly judgement does not exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement than current carrying VoIP service data; Otherwise
Judgement is in the described subchannel that satisfies VoIP business datum carrying bandwidth requirement, whether exist subchannel to disturb little subchannel than current carrying VoIP service data, if do not exist, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement; Otherwise judge to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement.
Be example with WiMAX system transmissions VoIP business below, the specific implementation process of said method is described.
For the uplink of VoIP business datum, the flow process of its channel allocation as shown in Figure 2, concrete steps are as follows:
In this step, the disturbed condition that the base station can each subchannel of periodic measurement, and update stored in the disturbed condition of each subchannel in the database with most recent measurements.
In this step, determination methods when judging whether to exist when disturbing little idle sub-channels than current carrying with the subchannel of VoIP business datum, can compare according to the disturbed condition of each up-to-date subchannel of base station stored as mentioned above; Also can when receiving the voip bandwidth look signal of terminal initiation, again the disturbed condition of current each subchannel be measured.
The channel switching is initiated in step 240, base station, and the idle sub-channels that is about to select is distributed to the VoIP terminal of sending bandwidth application signal, and utilizes UL-MAP to notify this terminal that VoIP business datum waiting for transmission is sent on the subchannel after the switching;
For the downlink transfer of VoIP business datum, the flow process of its channel allocation as shown in Figure 3, concrete steps are as follows:
Terminal can be continuous to the interferometry of subchannel, also can be periodic.When adopting periodic measurement, can regularly initiate by timer, like this can electrical energy saving.
In this step, at first from the data designated storehouse, interference measurement results is read, and protocol packing in accordance with regulations, the result that will pack sends to physical layer to send to base station side by air-interface standard.Air interface is handled and is comprised encoding and decoding, CRC, symbol-modulated, IFFT, ADC, carrier modulation, RF amplification, antenna etc.
In this step, determination methods as mentioned above.
The channel switching is initiated in step 350, base station, and the idle sub-channels that is about to select is distributed to new VoIP business datum, and utilizes DL-MAP notice terminal to receive new VoIP business datum on the subchannel after the switching;
As seen, no matter be the uplink or the downlink transfer of VoIP business datum, subchannel distributes and switching is all determined by the base station, just when downlink transfer, is finished the interferometry of each subchannel by the terminal assistant base station.
Below only to disturb idle sub-channels little and that satisfy VoIP business datum carrying bandwidth requirement than the subchannel of current carrying VoIP service data be example to exist, method for channel allocation is described, said method still is suitable for busy subchannel, repeats no more herein.In addition, said method in being applied to the WiMAX system, can also be applied to other and adopt in OFDM, OFDMA the broadband wireless data transmission system as physical-layer techniques.
Correspondingly, the embodiment of the invention 1 provides a kind of channel dividing arrangement of carrying VoIP service, and its structure comprises as shown in Figure 4:
Judging unit is used at the subchannel that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judgment unit judges result when existing, and disturbs little and satisfies chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement at the subchannel than current carrying VoIP service data;
First allocation units are used for the subchannel that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
The embodiment of the invention 1 also provides a kind of channel dividing arrangement of carrying VoIP service, its structure still as shown in Figure 4, the function of each unit is as follows:
Judging unit is used in the idle sub-channels that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judged result of judging unit when existing, and disturbs little and satisfies in the idle sub-channels of VoIP business datum carrying bandwidth requirement and select idle sub-channels at the subchannel than current carrying VoIP service data;
First allocation units are used for the idle sub-channels that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
Embodiment 2
The method for channel allocation of the carrying VoIP service that the embodiment of the invention 2 provides, its flow process as shown in Figure 5, concrete steps are as follows:
The subchannel of step 530, the interference minimum that will select is distributed to VoIP business datum waiting for transmission.
Preferably, the subchannel in the said method is an idle sub-channels.
Correspondingly, the embodiment of the invention 2 provides a kind of channel dividing arrangement of carrying VoIP service, and its structure comprises as shown in Figure 6:
First selected cell is used at the subchannel that is used for the bearer service data, selects to satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the subchannel selected at first selected cell, selects to disturb minimum subchannel;
Allocation units, the subchannel that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
The embodiment of the invention 2 also provides a kind of channel dividing arrangement of carrying VoIP service, its structure still as shown in Figure 6, each Elementary Function is as follows:
First selected cell is used in the idle sub-channels that is used for the bearer service data, selects to satisfy the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the idle sub-channels selected at first selected cell, selects to disturb minimum idle sub-channels;
Allocation units, the idle sub-channels that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
Embodiment 3
The embodiment of the invention 3 provides a kind of method for channel allocation of carrying VoIP service, its flow process as shown in Figure 7, concrete steps are as follows:
Preferably, the subchannel in the said method is an idle sub-channels.
Correspondingly, the embodiment of the invention 3 provides a kind of channel dividing arrangement of carrying VoIP service, and its structure comprises as shown in Figure 8:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from small to large, and first satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that the poll units poll goes out is distributed to VoIP business datum waiting for transmission.
The embodiment of the invention 3 also provides a kind of channel dividing arrangement of carrying VoIP service, its structure still as shown in Figure 8, each Elementary Function is as follows:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from small to large, and first satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that the poll units poll goes out is distributed to VoIP business datum waiting for transmission.
Embodiment 4
The embodiment of the invention 4 provides a kind of method for channel allocation of carrying VoIP service, its flow process as shown in Figure 9, concrete steps are as follows:
Step 920, according to each subchannel interference value order from big to small, last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Preferably, the subchannel in the said method is an idle sub-channels.
Correspondingly, the embodiment of the invention 4 provides a kind of channel dividing arrangement of carrying VoIP service, and its structure comprises still as shown in Figure 8:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from big to small, and last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that the poll units poll goes out is distributed to VoIP business datum waiting for transmission.
The embodiment of the invention 4 also provides a kind of channel dividing arrangement of carrying VoIP service, its structure still as shown in Figure 8, each Elementary Function is as follows:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from big to small, and last satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that the poll units poll goes out is distributed to VoIP business datum waiting for transmission.
Be example with WiMAX system transmissions VoIP business below, the specific implementation process of the method for the foregoing description 2,3 and 4 is described.
For the uplink of VoIP business datum, the flow process of its channel allocation as shown in figure 10, concrete steps are as follows:
In this step, the subchannel of measurement can comprise the subchannel and the idle sub-channels of bearer service data.And the measurement result in the database can periodically be upgraded.
Whether the bandwidth application signal that step 1030, judgement receive is sent by the VoIP terminal, if, execution in step 1040; Otherwise the base station is this terminal distribution up channel;
In this step, determination methods realizes based on agreement, such as, user terminal UE1 desires to send the VoIP business to user terminal UE2, at first to send the message signaling to the base station, the base station judge the message signaling receive whether be belong to H.323, the VoIP agreement in the agreements such as SIP, MGCP, if be the VoIP agreement, judge that then the bandwidth application signal that receives is to be sent by the VoIP terminal, promptly the base station perceives the VoIP business.
In this step, can whether be the 1st the VoIP business packet that user terminal UE1 sends to UE2 according to the VoIP business that perceives in the agreement determining step 1030.
In this step, also can be according to each idle sub-channels interference value from small to large or order from big to small according to interference measurement results, the idle sub-channels that the bandwidth application of selecting first or last to satisfy the VoIP terminal from each idle sub-channels requires, and it is distributed to this terminal.Certainly, in actual applications, if described first or last can't realize distributing, then also can select second or penult, the rest may be inferred, just will will disturb less subchannel distribute to the VoIP business datum as far as possible.
If do not satisfy the idle sub-channels of above-mentioned condition, can not accept this VoIP business.
In this step, also can be according to the interference value of the subchannel of each idle sub-channels and current carrying VoIP service data from small to large or order from big to small according to interference measurement results, the idle sub-channels that the bandwidth application of selecting first or last to satisfy the VoIP terminal from each idle sub-channels requires, and it is distributed to this terminal.
In addition, this step can also adopt the method for channel allocation that provides in the embodiment of the invention 1 to carry out channel allocation.
For the downlink transfer of VoIP business datum, the flow process of its channel allocation as shown in figure 11, concrete steps are as follows:
In this step, the subchannel of measurement can comprise the subchannel and the idle sub-channels of bearer service data.And the measurement result in the database can periodically be upgraded.
Step 1120, the interference value that will deposit each subchannel of specified database in send to the base station;
The current VoIP business that whether exists is judged in step 1130, base station, if, execution in step 1140; Otherwise, return step 1110;
In this step, determination methods is identical with up transmission, repeats no more herein.
In this step, determination methods is identical during with uplink, repeats no more.
In this step, also can be according to each idle sub-channels interference value from small to large or order from big to small according to interference measurement results, from each idle sub-channels, select first or last to satisfy the idle sub-channels of VoIP business datum bandwidth requirement, and it is distributed to this VoIP business datum.Certainly, in actual applications, if described first or last can't realize distributing, then also can select second or penult, the rest may be inferred, just will will disturb less subchannel distribute to the VoIP business datum as far as possible.
If do not satisfy the idle sub-channels of above-mentioned condition, can not accept this VoIP business.
In this step, also can be according to the interference value of the subchannel of each idle sub-channels and current carrying VoIP service data from small to large or order from big to small according to interference measurement results, from each idle sub-channels, select first or last to satisfy the idle sub-channels of VoIP business datum bandwidth requirement, and it is distributed to this VoIP business datum.
In addition, this step can also adopt the method for channel allocation that provides in the embodiment of the invention 1 to carry out channel allocation.
Above-mentioned only is that example describes with the idle sub-channels, and for busy subchannel, said method still is suitable for, and repeats no more herein.In addition, said method in being applied to the WiMAX system, can also be applied to other and adopt in OFDM, OFDMA the broadband wireless data transmission system as physical-layer techniques.
The embodiment of the invention is based on the disturbed condition and the bandwidth capacity of each subchannel, when being VoIP business datum allocated channel, to satisfy as far as possible and disturb minimum subchannel to distribute to terminal in the subchannel of VoIP business datum bandwidth requirement, carry out the transmission of VoIP business datum, reduced probability because of channel circumstance deterioration startup AMC and ARQ, thereby reduce because of starting the additional transmitted time delay that AMC and ARQ introduce, guaranteed the QOS of transmission VoIP business datum.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (18)
1. the method for channel allocation of a carrying VoIP service is characterized in that, comprising:
At the subchannel that is used for the bearer service data, judge whether to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
If exist, disturb little and satisfy chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement at subchannel than current carrying VoIP service data, and
The subchannel of selecting is distributed to VoIP business datum waiting for transmission; Otherwise
The subchannel of current carrying VoIP service data is distributed to VoIP business datum waiting for transmission.
2. the method for claim 1 is characterized in that, described deterministic process specifically comprises:
Judge whether to exist subchannel to disturb little subchannel,, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement if do not exist than current carrying VoIP service data; Otherwise
Judgement is disturbed in the little subchannel at described subchannel than current carrying VoIP service data, whether the subchannel that the VoIP business datum is carried bandwidth requirement is satisfied in existence, if do not exist, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement; Otherwise
Judge to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement.
3. the method for claim 1 is characterized in that, described deterministic process specifically comprises:
Judge whether to exist the subchannel that satisfies VoIP business datum carrying bandwidth requirement,, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement if do not exist; Otherwise
Judgement is in the described subchannel that satisfies VoIP business datum carrying bandwidth requirement, whether exist subchannel to disturb little subchannel than current carrying VoIP service data, if do not exist, judge that then the subchannel that does not exist than current carrying VoIP service data disturbs little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement; Otherwise
Judge to exist subchannel than current carrying VoIP service data to disturb little and satisfy the subchannel of VoIP business datum carrying bandwidth requirement.
4. as claim 1,2 or 3 described methods, it is characterized in that described subchannel is an idle sub-channels.
5. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Judging unit is used at the subchannel that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the subchannel of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judgment unit judges result when existing, and disturbs little and satisfies chooser channel in the subchannel of VoIP business datum carrying bandwidth requirement at the subchannel than current carrying VoIP service data;
First allocation units are used for the subchannel that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
6. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Judging unit is used in the idle sub-channels that is used for the bearer service data, judges whether to exist subchannel than current carrying VoIP service data to disturb little and satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Selected cell is used in the judged result of judging unit when existing, and disturbs little and satisfies in the idle sub-channels of VoIP business datum carrying bandwidth requirement and select idle sub-channels at the subchannel than current carrying VoIP service data;
First allocation units are used for the idle sub-channels that selected cell is selected is distributed to VoIP business datum waiting for transmission;
Second allocation units are used in the judged result of judging unit the subchannel of current carrying VoIP service data being distributed to VoIP business datum waiting for transmission when not existing.
7. the method for channel allocation of a carrying VoIP service is characterized in that, comprising:
At the subchannel that is used for the bearer service data, select to satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
In the subchannel of selecting, select to disturb minimum subchannel;
The subchannel of the interference minimum selected is distributed to VoIP business datum waiting for transmission.
8. method as claimed in claim 7 is characterized in that, described subchannel is an idle sub-channels.
9. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
First selected cell is used at the subchannel that is used for the bearer service data, selects to satisfy the subchannel of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the subchannel selected at first selected cell, selects to disturb minimum subchannel;
Allocation units, the subchannel that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
10. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
First selected cell is used in the idle sub-channels that is used for the bearer service data, selects to satisfy the idle sub-channels of VoIP business datum carrying bandwidth requirement;
Second selected cell is used for the idle sub-channels selected at first selected cell, selects to disturb minimum idle sub-channels;
Allocation units, the idle sub-channels that is used for interference minimum that second selected cell is selected is distributed to VoIP business datum waiting for transmission.
11. the method for channel allocation of a carrying VoIP service is characterized in that, comprising:
At the subchannel that is used for the bearer service data, sort according to the interference value of each subchannel;
According to each subchannel interference value order from small to large, first satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
The subchannel that described poll goes out is distributed to VoIP business datum waiting for transmission.
12. method as claimed in claim 11 is characterized in that, described subchannel is an idle sub-channels.
13. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from small to large, and first satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
14. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from small to large, and first satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
15. the method for channel allocation of a carrying VoIP service is characterized in that, comprising:
At the subchannel that is used for the bearer service data, sort according to the interference value of each subchannel;
According to each subchannel interference value order from big to small, last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
The subchannel that described poll goes out is distributed to VoIP business datum waiting for transmission.
16. method as claimed in claim 15 is characterized in that, described subchannel is an idle sub-channels.
17. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Sequencing unit is used at the subchannel that is used for the bearer service data, sorts according to the interference value of each subchannel;
Poll units is used for according to each subchannel interference value order from big to small, and last satisfies the subchannel of VoIP business datum carrying bandwidth requirement in each subchannel of poll;
Allocation units are used for the subchannel that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
18. the channel dividing arrangement of a carrying VoIP service is characterized in that, comprising:
Sequencing unit is used in the idle sub-channels that is used for the bearer service data, sorts according to the interference value of each idle sub-channels;
Poll units is used for according to each idle sub-channels interference value order from big to small, and last satisfies the idle sub-channels of VoIP business datum carrying bandwidth requirement in each idle sub-channels of poll;
Allocation units are used for the idle sub-channels that described poll units poll goes out is distributed to VoIP business datum waiting for transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101788981A CN101170539A (en) | 2007-12-06 | 2007-12-06 | Channel allocation method and device carrying VoIP service |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101788981A CN101170539A (en) | 2007-12-06 | 2007-12-06 | Channel allocation method and device carrying VoIP service |
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| CN101170539A true CN101170539A (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101788981A Pending CN101170539A (en) | 2007-12-06 | 2007-12-06 | Channel allocation method and device carrying VoIP service |
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| CN (1) | CN101170539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457866A (en) * | 2010-10-29 | 2012-05-16 | 中兴通讯股份有限公司 | Method and device for establishing network in wireless network |
| US9160780B2 (en) | 2011-12-30 | 2015-10-13 | International Business Machines Corporation | System and method for establishing a voice over IP session |
-
2007
- 2007-12-06 CN CNA2007101788981A patent/CN101170539A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457866A (en) * | 2010-10-29 | 2012-05-16 | 中兴通讯股份有限公司 | Method and device for establishing network in wireless network |
| US9025555B2 (en) | 2010-10-29 | 2015-05-05 | Zte Corporation | Method and apparatus for establishing network in wireless network |
| CN102457866B (en) * | 2010-10-29 | 2015-05-20 | 中兴通讯股份有限公司 | Method and device for establishing network in wireless network |
| US9160780B2 (en) | 2011-12-30 | 2015-10-13 | International Business Machines Corporation | System and method for establishing a voice over IP session |
| US9167019B2 (en) | 2011-12-30 | 2015-10-20 | International Business Machines Corporation | System and method for establishing a voice over IP session |
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