CN101175039A - Multi-stream service transmission method and its device and system - Google Patents
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Abstract
The present invention discloses a method, a device and a system for transmitting multi-flow service; the method comprises the steps that the emitting end of the multi-flow service maps a plurality of multi-flow services into at least one QoS-grade service according to the type of the multi-flow services and the correspondence of the QoS grade; the emitting end of the multi-flow service implements the resource requirement according to the QoS grade corresponding to the QoS grade service and emits the data of the QoS grade service according to the required resource. By adopting the present invention, resources can be distributed for the service flows of different QoS grades according to the QoS grades corresponding to the multi-flow services in the process of transmitting the multi-flow services; in this way, the resource utilization rate is increased.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of transmission method and device and system of multi-stream service.
Background technology
The 3G mobile communication technology is ripe gradually commercial at present, and 3GPP2 CDMA2000 1XEV-DO can further provide competitive wireless access system in the coming years.But want to keep following 10 years or the competitiveness in decades, need to introduce new wireless access technology.At present industry is reached preliminary unanimity with regard to the technology of the eating dishes without rice or wine evolution of 3GPP2, promptly is divided into two stages to carry out, and the phase I is adopted multi-carrier EV-DO (only supporting the evolution of Packet data service) technology, more consider compatible, the evolution items of short-term just; Second stage then is to introduce more advanced technology, such as OFDM (OrthogonalFrequency Division Multiplexing, OFDM) technology, MIMO (Multi-InputMulti-Output, multiple-input and multiple-output) technology etc., can greatly improve the spectrum efficiency and the peak rate of wireless access system, be the evolution plan of 3GPP2 standard long-term.
The ever-increasing application demand of user is had higher requirement to the bandwidthization and the customization of communication system.Broadbandly be exactly for the user provides wideer bandwidth and the data throughout of Geng Gao, customization is exactly that demand according to the user provides miscellaneous service flexibly.Voice and packet data concurrent service just becomes in conjunction with broadband and customized a kind of inevitable choice, promptly allows the user to use multiple business simultaneously in system, fully satisfies flexible and changeable user's request.For example, the voice and packet data concurrent service application demand has: while make a phone call from the network download film perhaps command transmitting etc. in the process of making a phone call.
Traditional multicarrier modulation system is that high-speed data-flow is formed the data flow of a plurality of low speed by serial to parallel conversion, modulates corresponding carrier wave more respectively, thereby constitutes the parallel transmission system that sends of a plurality of low-rate datas.Wherein a plurality of carrier waves that are used to modulate show as a plurality of nonoverlapping subcarriers on frequency band.The OFDM technology is a kind of special multi-carrier modulation technology, have between each subcarrier 1/2 overlapping, but keep mutually orthogonal, receiving terminal can by the correlation demodulation technical point from, constitute data transmission system more efficiently.In addition, ofdm system can also reduce intersymbol interference, makes full use of frequency selectivity.Because the plurality of advantages of OFDM technology is so the OFDM technology is widely used at present.
OFDMA (OFDM access) system utilizes the OFDM technology to do multiplex technique, promptly by distributing different data subcarriers to distinguish different users for different user.Because transfer of data is used different mutually orthogonal subcarriers between the user, so transfer of data can the phase mutual interference between the user.And when subcarrier is distributed, can take into full account this user's wireless environment situation, make full use of frequency selectivity, the data subcarrier to the user distributes the most suitable transmission by the allocation schedule optimization Algorithm, makes power system capacity improve.In general OFDMA system, the orthogonality in order to ensure each user uses sub-carrier resources all is to be concentrated by AN (Access Net, access network) to carry out resource allocation, and gives AT (Access Terminal accesses terminal) with the resource assignation that distributes.
Up-to-date AIE (air interface evolution in the 3GPP2 proposition, the evolution of eating dishes without rice or wine) LBC (loosely back-compatible, loose backward compatibility) in the framework, OFDMA is all adopted in preceding reverse data transmission, and the user is in the enterprising line data transmission of the sub-carrier resources of distributing.When transmitting terminal transmits a plurality of Business Stream, on the upper strata that a plurality of line data that flow to are multiplexing, unified to physical layer through processing such as coded modulation, at last data symbol is sent on sub-carrier resources.And, after the grouping bag reception with whole physical layer, carry out demultiplexing on the upper strata at receiving terminal, and the data that will belong to various flows send to different application, and the grouping bag that promptly transmits on physical layer is that a plurality of Business Streams are through merging later grouping bags.
By the multiplexing and demultiplexing of this flow data that on physical layer, carries out, simplified the processing of physical layer, but do not considered the professional different demands of multiple stream.Different business is to the HARQ number of retransmissions difference of (Hybrid ARQ mixes automatic request retransmission).For example when VoIP business (IP-based voice call service) and ftp business (file transfer protocol (FTP) business) were concurrent, VoIP, required as far as possible at transfer of data HARQ premature termination when eating dishes without rice or wine to transmit delay sensitive; It is then insensitive to time delay that FTP downloads, and belongs to BE (doing one's best) business, can be in the transmitted over resources of distributing when eating dishes without rice or wine resource, and not high to the requirement of HARQ yet.For example, VoIP requires 3 HARQ to retransmit just can satisfy the transfer of data requirement, and FTP then needs 8 HARQ to retransmit.
In addition, different business also has different demands to resource, needs higher power resource as the VoIP business than ftp business.In existing AIE LBC framework, all stream all is multiplexing through the upper strata, become a physical layer packet bag in the physical layer unified fusion, so considering resource allocation, especially during power setting, transmitting terminal can only preferentially guarantee the business that priority is high, and for the low business of priority, use the resource as the high traffic assignments of priority, especially too high power resource will cause the wasting of resources.
Summary of the invention
Embodiments of the invention have disclosed the transmitting terminal device and the receiving end device of the network side apparatus of transmission method, multi-stream service transmission of multi-stream service and end side device, multi-stream service, and the transmission system of multi-stream service, in order to solve the problem of the wasting of resources in the multi-stream service transmission course that exists in the prior art.
The multi-stream service transmission method that the embodiment of the invention discloses comprises step:
The transmitting terminal of multi-stream service is mapped as at least one QoS grade business according to the corresponding relation of the type and the quality of service QoS grade of multi-stream service with a plurality of stream business;
The transmitting terminal of described multi-stream service carries out resource request according to the professional corresponding QoS grade of described QoS grade and sends according to the data of the resource of asking to described QoS grade business.
The another kind of multi-stream service transmission method that the embodiment of the invention discloses comprises step:
The receiving terminal of multi-stream service obtains resource assignment information respectively, carries the identification information of a QoS grade in each resource assignment information;
The receiving terminal of described multi-stream service obtains corresponding multi-stream service data according to the data of the described resource assignment information reception QoS grade business corresponding with the identification information of described QoS grade; Described QoS grade business is by the transmitting terminal of the described multi-stream service corresponding relation according to the type and the QoS grade of multi-stream service, and described multi-stream service is mapped as corresponding QoS grade business.
The transmitting terminal device of the multi-stream service transmission that the embodiment of the invention discloses comprises:
Mapping block is used for the corresponding relation according to the type and the QoS grade of multi-stream service, and a plurality of stream business are mapped as at least one QoS grade business;
The resource request module is used for carrying out resource request according to the professional corresponding QoS grade of described QoS grade;
Sending module is used for sending according to the data of the resource of asking to described QoS grade business.
The receiving end device of the multi-stream service transmission that the embodiment of the invention discloses comprises:
Resource information obtains module, is used for obtaining respectively resource assignment information, carries the identification information of a QoS grade in each resource assignment information;
Receiver module is used for the data according to the resource assignment information reception that the acquires QoS grade business corresponding with the identification information of described QoS grade, obtains corresponding multi-stream service data; Described QoS grade business is by the transmitting terminal of the described multi-stream service corresponding relation according to the type and the QoS grade of multi-stream service, and described multi-stream service is mapped as corresponding QoS grade business.
The transmission system of the multi-stream service that the embodiment of the invention discloses comprises: transmitting terminal device and receiving end device, wherein
The transmitting terminal device, be used for corresponding relation according to the type and the QoS grade of multi-stream service, a plurality of stream business are mapped as at least one QoS grade business, and carry out resource request and send according to the data of the resource of asking to described QoS grade business according to the professional corresponding QoS grade of described QoS grade;
Receiving end device, be used for obtaining respectively resource assignment information, carry the identification information of a QoS grade in each resource assignment information, and receive the data of the QoS grade business corresponding with the identification information of described QoS grade according to described resource assignment information, obtain the multi-stream service data of the correspondence of described transmitting terminal device transmission.
The above embodiment of the present invention, corresponding relation according to stream type of service and QoS grade, multi-stream service is mapped as a plurality of QoS grade business, when being the multi-stream service allocation of transmission resources, the QoS grade of the QoS grade business that mapping obtains according to multi-stream service is corresponding QoS grade traffic assignments resource, make when the transmission multi-stream service, data according to the QoS grade business of the resource transmission multi-stream service correspondence of distributing, thereby the business that makes the different QoS grade uses the resource corresponding with this QoS grade to send, and has compared with prior art improved the resource utilization of multi-stream service transmission.By the foregoing description, can make the business of different priorities use the different resource transmission by reasonable mapping to multi-stream service and QoS grade, improved the flexibility and the resource utilization of multi-stream service transmission.
Description of drawings
Fig. 1 is the negotiations process schematic diagram of Business Stream of the present invention and the mapping of QoS grade;
Fig. 2 is the reverse transfer process schematic diagram of the multi-stream service of the embodiment of the invention one;
Fig. 3 carries out code modulated schematic diagram at different Business Streams respectively for AT of the present invention;
Fig. 4 is the fl transmission process schematic diagram of the multi-stream service of the embodiment of the invention two;
Fig. 5 is the structural representation of the network side apparatus of multi-stream service transmission of the present invention;
Fig. 6 is the structural representation of the end side device of multi-stream service transmission of the present invention;
Fig. 7 is the structural representation of multi-stream service transmission system of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
In embodiments of the present invention, before the transmission multi-stream service, at first to set up the mapping relations of multi-stream service and QoS grade, multi-stream service is mapped as the business of different QoS grade.Stream is professional because system generally can support several data, such as reach 32 kinds of not homogeneous turbulence business in the upper layer application support of AIE LBC system, if system need distinguish these 32 kinds of stream business, needs 5bit at least when eating dishes without rice or wine to carry out transfer of data.In order to save empty overhead, but be unlikely to influence influence again to various flows QoS, upper-layer service stream that can the QoS demand is similar is mapped to a class QoS grade, be unified in and processing such as eat dishes without rice or wine to dispatch, the quantity of QoS grade can be reduced like this, thereby reduce the expense of interface-free resources assignment and transmission.
The QoS grade can be as being a parameter that is used to carry out the underlying resource scheduling between AT and the AN, and the data of different brackets QoS characteristic have different transmission requirements when physical link transmits.For example, terminal can report by reverse REQ request channel, or carries in in-band signalling (being InBand message).The QoS grade is represented by 2bits, can represent 4 kinds of grades.The Business Stream that upper strata (MAC layer) transmission is supported can have 32 types (this value is determined according to upper-layer protocol), the type of service difference of every kind of Business Stream, demand to resource is also different, but can be mapped as a class QoS grade by the Business Stream that the QoS demand is similar, perhaps, adjust the mapping relations of Business Stream and QoS grade flexibly according to business demand.
The embodiment of the invention is mapped as 3 kinds of QoS grades according to the different demands of different business stream to resource with a plurality of Business Streams.For example, regulation QoS grade is 0 o'clock, and priority is the highest, Business Streams such as signaling, urgent call can be mapped to QoS grade 0; The QoS grade is 1 o'clock, and priority is taken second place, and delay sensitive business such as VoIP can be mapped to QoS grade 1; The QoS grade is 2 o'clock, and priority is minimum, the BE business can be mapped to QoS grade 2, and is as shown in table 1.
Table 1
| The QoS grade | The stream service identification | Explanation |
| QoS?level?0 | ?Stream?0，... | The business of high priority (as urgent call) |
| QoS?level?1 | ?Stream?5，... | The business of medium priority (signaling of reliable transmission is as VoIP) |
| QoS?level?2 | ?Stream?10，... | The business of low priority (signaling of the transmission of doing the best is as FTP) |
| QoS?level?3 | Temporarily stored default value |
One of example of just mapping method shown in the table 1 can also shine upon according to professional real needs, as, when certain BE business is very important for the user, also this Business Stream can be mapped on the higher QoS grade of another priority.
The foundation of the mapping relations of Business Stream and QoS grade can be finished by the negotiations process of AN and AT.Set up or initial session when setting up in that the calling of AN and AT is initial since before do not have negotiations process, then AT need call out access by default QoS grade point.After calling out access, the user uses default QoS grade point to carry out REQ and reports, and request obtains scheduling, carries out heavily negotiations process this moment.AN and AT carry out the foundation of the mapping of Business Stream and QoS grade in heavy negotiations process.In calling procedure, also can be by heavily consulting the more mapping of new service flow and QoS grade.
AN and AT carry out the negotiations process of the mapping of Business Stream and QoS grade and can use existing Reservation to consult flow process, increase the process of Business Stream and QoS grade mapping in this flow process newly.As shown in Figure 1, be the flow process of AN and AT consultation business service stream with the mapping of QoS grade.AN sends attribute update request (AttributeUpdateRequest) message to AT, carries and consults attribute (AssociatedQosLevel) value.After AT receives message, upgrade affirmation (AttributeUpdateAccept) message to the AN return attribute, the negotiations process of Business Stream and the mapping of QoS grade is finished.
Wherein, the AssociatedQosLevelNN attribute in the AttributeUpdateRequest message is the attribute that increases newly, is used to carry the mapping relations information of Business Stream and QoS grade.The structure of AssociatedQosLevelNN attribute is as shown in table 2, and wherein the NN among the AssociatedQosLevelNN represents QoS level, span 0～3.Maximum 32 the Business Stream Stream (this value need be determined according to upper-layer protocol) that support.
Table 2
| Field | Field length (bits) | Default value |
| Length | ||
| AttributeID |
One or many appears in following property value record:
{
| ?ValueID | ||
| ?StreamCount | ?5 |
The number of times that following field occurs is specified by the StreamCount value:
{
| Stream | ?5 | ?0～31 |
}
| Reserved |
}
Describe by multi-stream service being mapped as different QoS grade business below by two embodiment, carry out the forward direction and the reverse data transmission course of multi-stream service.
Embodiment one
Present embodiment has been described the reverse transfer process of multi-stream service.
Referring to Fig. 2, be the reverse transfer process schematic diagram of the multi-stream service of the embodiment of the invention one, concrete steps comprise:
AN collects the attribute of the Business Stream of each AT that need serve, comprise Business Stream QoS grade, metadata cache amount, the information such as requirement of time delay are unified to dispatch.In existing LBC framework, AT can carry these information to AN by reverse REQ channel or InBand message.
For example, the current AT0 of having need upload uplink business data: VoIP stream and ftp flow.AN got access to VoIP stream from the mapping relations table (as table 1) of Business Stream and QoS grade and was mapped as QoS Level1 business this moment, and ftp flow is mapped as QoS Level 2 business.AT can report resource situation that QoS Level1 and QoS Level2 two class business may need or professional metadata cache situation etc. respectively, and AN is QoS Level 1 professional and QoS Level 2 traffic assignments ascending resources according to the relevant information that QoS Level1 and QoS Level 2 and AT report respectively.
After the AN Resources allocation, the assembling assignment message.Comprise in the assignment message that AT sign, AT are assigned information such as QoS class letter, channel resource sign, packet format.Table 3 has wherein only comprised the part field for the example of an assignment message of AN transmission.
Table 3
| Field | Field value | Explanation of field |
| Block?type | ?3 | Block identification |
| MAC?ID | ?9-11 | Be used to identify AT |
| FlowID | ?2 | AT is assigned the QoS class letter |
| Persistent | ?1 | The assignment type |
| ChanID | ?6-8 | The channel resource sign |
| PF | ?4-6 | The transmitted in packets packet format |
| Duration | ?2 | The assignment cycle |
| Ext.TX | ?1 | Whether expand the frame indication |
FlowID field in the table 3 is a new field, the QoS class letter that sign AT is assigned.AN is assigned the resource of distributing by the forward shared channel notice AT.
For example, AN sends 2 assignment messages, other ascending resource parameters of carrying FlowID respectively and distributing to AT at the uplink service of above-mentioned AT0:
Assignment message 1:MAC ID=AT0, FlowID=1, ChanID=5, PF=5, Persistent=1, expression assignment AT0 with QoS Level 1 pairing Business Stream be at ChanID on 5 the sub-carrier resources with the form transmission of PF5, this message is for continuing assignment message;
Assignment message 2:MAC ID=AT0, FlowID=2, ChanID=10, PF=8, Persistent=0, expression assignment AT0 with QoS Level 2 pairing Business Streams be at ChanID on 10 the sub-carrier resources with the form transmission of PF8, this message is non-lasting assignment message.
After step 204, AT received assignment message, the multiple QoS grade business datum that needs are uploaded was carried out coded modulation respectively and is sent according to the resource of distributing.
As shown in Figure 3, AT carries out coded modulation at different Business Streams respectively.AT encodes, modulates, is provided with power to the Business Stream of Flow 1 to Flow n respectively in physical layer among the figure, and finally forms the data symbol transmission.
For example, after above-mentioned AT0 receives assignment message 1 and 2, get access to its VoIP that will upload from the Business Stream and the mapping relations (table 1) of QoS grade and flow corresponding QoS Level1, the corresponding QoS Level2 of ftp flow, then on physical layer, carry out coded modulation for the coded format PF5 of QoS Level1 business VoIP stream according to assignment, according to QoS Level 1 professional corresponding power parameter distributing signal transmitting power, then data symbol is mapped to ChanID 5 on the sub-carrier resources.Equally, AT0 carries out coded modulation for the coded format PF8 of QoS Level 2 business according to assignment on physical layer ftp flow, according to the professional corresponding power parameter distributing signal transmitting powers of QoS Level 2, then data symbol is mapped to ChanID 10 on the sub-carrier resources of assignment.At last, the unified IFFT that carries out of AT0 modulates, and VoIP data and FTP data are sent on an OFDM symbol.If the assignment of one of assignment message was lost efficacy, do not influence the validity of another resource assignation therebetween.
LBC oppositely also exists power control in order to the transmitting power of distributing to QoS grade business is adjusted.In the inversed business channel power control procedure of LBC, guaranteeing that the own service channel power satisfies under the prerequisite of performance, also will reduce the interference to adjacent sectors as far as possible.So when different Business Streams is provided with power, also need to consider the not disturbing factor of the external sector of homogeneous turbulence.Closed-loop power control may be as the criterion with certain reference channel, be as the criterion such as Reverse Pilot Channel, and the power of Traffic Channel is exactly the certain biasing on the basis of Reverse Pilot Channel power.The power bias that homogeneous turbulence not can be able to be provided with or claim power gain (FlowGain) to bind is respectively accomplished relevant with service attribute.For example, in the process of above-mentioned distributing signal transmitting power, FlowGainMax (maximum power biasing)=12dB is set, FlowGainMin (minimum power biasing)=8dB for QoS Level 1 business (VoIP stream); For QoS Level 2 business (ftp flow) FlowGainMax (maximum power biasing)=12dB is set, FlowGainMin (minimum power biasing)=2dB.This be because, VoIP requires the more stable transmission ability guaranteed performance of power, so the shake of the variable power of VoIP can not be too big, FTP is then lower to delay requirement, when so sector interference is big outside, ftp flow should reduce transmitting power as much as possible, and when the interference reduction of outer sector, ftp flow then should increase transmitted power as much as possible.In order to guarantee the orthogonality of subcarrier transmission in the sector, the gain between the various flows of transmission (Gain) can not differ too big simultaneously.
AT can be according to the power resource information of carrying in the resource allocating message that receives, for corresponding QoS grade business data flow is provided with transmitting power, and also can be by terminal pins to QoS grade business setting transmitting power.
AN can be by estimating, perhaps resource allocating message (wherein carrying the power information of distribution) by receiving, and the perhaps power setting of obtaining AT by AN and the mode of AT negotiation, and, resolve different flow datas respectively according to the power settings that gets access to.
AN can also receive the InBand message that AT reports, and as PowerControl Block message, obtains and is used for resolution data with professional relevant power parameter and flows.The QoS information of newly-increased 2bits in the PowerControl Block message that AT reports is used for carrying and professional relevant power parameter.
AN can increase the QoS information of 2bits newly in in-band message InBandPFSwitch message, be used for to the professional pairing exchange packet transmission format of AT indication QoS grade.
AN needs to return ACK message after receiving data.In the present embodiment, because resource assignation is based on the QoS grade, so AN returns ACK message according to the QoS grade.For example, when AT transmits 2 kinds of QoS grades business simultaneously, then AN need carry out the ACK affirmation respectively at 2 kinds of QoS grade Business Streams, be that AN needs extra power to send the ACK message at 2 kinds of QoS grade Business Streams respectively, and the receiving terminal AT0 of ACK message need obtain AN to the power settings of 2 kinds of QoS grade business to resolve ACK message (obtain manner can be by estimating or being held consultation by AN and AT).
In the present embodiment, in going assignment process, AN carries the QoS class letter in removing assignment message, and notice AT discharges the resource that pairing all Business Streams of this QoS class letter take simultaneously.
When carrying out assignment with a kind of Business Stream, the assignment logic still adopts the logic in the existing LBC framework constant.
Embodiment two
Present embodiment has been described the fl transmission process of multi-stream service.
Referring to Fig. 4, be the fl transmission process schematic diagram of the multi-stream service of the embodiment of the invention two, concrete steps comprise:
This step is with the step 201 of embodiment one.
The multi-stream service that step 402, AN issue for target AT as required obtains the QoS grade of multi-stream service correspondence, and according to the QoS grade of information that reports and multi-stream service correspondence, adopts dispatching algorithm, is the corresponding resource of each QoS grade traffic assignments.The resource information that AN distributes can comprise time resource, frequency resource, power resource and space antenna resource.
For example, AN need be AT0 issuing service data: VoIP stream and ftp flow.AN got access to VoIP stream from the mapping relations table (as table 1) of Business Stream and QoS grade and was mapped as QoS Level1 business this moment, and ftp flow is mapped as QoS Level 2 business.AN is QoS Level 1 professional and QoS Level 2 traffic assignments ascending resources according to QoS Level 1 and QoS Level2 respectively.
After step 403, the AN Resources allocation, the assembling assignment message.Comprise in the assignment message that AT sign, AT are assigned information such as QoS class letter, channel resource sign, packet format.AN is assigned the resource of distributing by the forward shared channel notice AT.
For example, AN sends 2 assignment messages, other downlink resource parameters of carrying FlowID respectively and distributing to AT at the downlink business of above-mentioned AT0:
Assignment message 1:MAC ID=AT0, FlowID=1, ChanID=5, PF=5, Persistent=1, expression assignment AT0 are that to receive the QoS grade with the form of PF5 on 5 the sub-carrier resources be 1 pairing Business Stream at ChanID, and this message is for continuing assignment message;
Assignment message 2:MAC ID=AT0, FlowID=2, ChanID=10, PF=8, Persistent=0, expression assignment AT0 are that to receive the QoS grade with the form of PF8 on 10 the sub-carrier resources be 2 pairing Business Streams at ChanID, and this message is non-lasting assignment message.
After step 404, AN sent assignment message, a plurality of QoS grade business datums that needs are issued were carried out coded modulation respectively and are sent according to the resource of distributing.
For example, AN gets access to its VoIP that will issue from the Business Stream and the mapping relations (table 1) of QoS grade and flows corresponding QoS Level 1, the corresponding QoS Level 2 of ftp flow, then VoIP stream is carried out coded modulation according to the coded format PF5 that distributes to QoS Level 1 business on physical layer, according to QoS Level 1 professional corresponding power parameter distributing signal transmitting power, then data symbol is mapped to ChanID5 on the sub-carrier resources.Equally, AN carries out coded modulation according to the coded format PF8 that distributes to QoS Level 2 business on physical layer, according to the professional corresponding power parameter distributing signal transmitting powers of QoS Level 2, then data symbol is mapped to ChanID 10 on the sub-carrier resources of assignment.At last, the unified IFFT that carries out of AN modulates, and VoIP data and FTP data are sent on an OFDM symbol.If one of resource allocation of QoS grade business was lost efficacy, do not influence the validity of another QoS grade therebetween, with the resource allocation of weapon.
Simultaneously, in order to guarantee that the own service channel power satisfies the demand of performance and reduces interference to adjacent sectors as far as possible, different power bias (or claiming power gain) also can be set to different Business Streams in order to the transmitting power of distributing to QoS grade business is adjusted.The power bias that present embodiment adopts homogeneous turbulence not to be provided with is bound respectively, accomplishes relevant with service attribute.For example, in the process of above-mentioned distributing signal transmitting power, FlowGainMax=12dB, FlowGainMin=8dB are set for QoS Level 1 business (VoIP stream); For QoS Level 2 business (ftp flow) FlowGainMax=12dB, FlowGainMin=2dB are set.In order to guarantee the orthogonality of subcarrier transmission in the sector, it is too big that the power bias between the various flows of transmission can not differ simultaneously.
AT can be by estimation or the mode of being consulted by AT and AN, the power setting of obtaining AN, and, resolve different flow datas respectively according to the power settings that gets access to.
AT needs to return ACK message after receiving data.In the present embodiment, because resource assignation is based on the QoS grade, so the ACK message returned according to the QoS grade of AT.For example, when transmitting 2 kinds of QoS grades business simultaneously for AN, then AT need carry out the ACK affirmation respectively at 2 kinds of QoS grade Business Streams, be that AT needs extra power to send the ACK message at 2 kinds of QoS grade Business Streams respectively, and the receiving terminal AN of ACK message need obtain AT to the power settings of 2 kinds of QoS grade business to resolve ACK message (obtain manner can be by estimating or being held consultation by AN and AT0).
In the present embodiment, in going assignment process, AN carries the QoS class letter in removing assignment message, and after AT received that this removes assignment message, the resource that pairing all Business Streams of this QoS class letter are taken discharged.
When carrying out assignment with a kind of Business Stream, the assignment logic still adopts the logic in the existing LBC framework constant.
The above embodiment of the present invention and embodiment two are applicable to multi-address communication system, as fdma system, time-division multiple address system or code division multiple access system.Fdma system such as orthogonal frequency division multiple access system.In fdma system, AN is that different QoS grade business datum is distributed different frequency resource transmission; In time-division multiple address system, AN is that different QoS grade business datum is distributed different time resource transmission; In code division multiple access system, AN is that different QoS grade business datum is distributed different sign indicating number resource transmission.
The embodiment of the invention also provides the transmission system of transmitting terminal device, receiving end device and the corresponding multi-stream service of multi-stream service transmission.
The transmitting terminal device of the multi-stream service that the embodiment of the invention provides comprises: mapping block, resource request module and sending module, also can comprise power regulation module, wherein:
Mapping block is used for the corresponding relation according to the type and the QoS grade of multi-stream service, and a plurality of stream business are mapped as at least one QoS grade business;
The resource request module is used for carrying out resource request according to the professional corresponding QoS grade of QoS grade, the request of resource request module to resource comprise: time resource, frequency resource, power resource and space antenna resource;
Sending module is used for sending according to the data of the resource of asking to QoS grade business.
Power regulation module, the power bias that is used for according to QoS grade correspondence is that the professional transmitted power of being asked of corresponding QoS grade is adjusted.
Above-mentioned transmitting terminal device can be integrated in network equipment or user terminal side apparatus.
The receiving end device of the multi-stream service transmission that the embodiment of the invention provides, comprising: resource information obtains module and receiver module, wherein:
Resource information obtains module, be used for obtaining respectively resource assignment information, carry the identification information of a QoS grade in each resource assignment information, also comprise in the resource assignment information: time resource information, frequency resource information, power resource information and space antenna resource information.If this receiving end device is integrated in terminal side equipment, then this resource information obtains the resource allocating message that module is used to receive the network side transmission;
Receiver module is used for the data according to the resource assignment information reception that the acquires QoS grade business corresponding with the identification information of described QoS grade, obtains corresponding multi-stream service data; Above-mentioned QoS grade business is by the transmitting terminal of the multi-stream service corresponding relation according to the type and the QoS grade of multi-stream service, and multi-stream service is mapped as corresponding QoS grade business.
Above-mentioned receiving end device can be integrated in user terminal side apparatus and network equipment.
The transmission system of the multi-stream service that the embodiment of the invention provides comprises above-mentioned transmitting terminal device and receiving end device, wherein:
The transmitting terminal device, be used for corresponding relation according to the type and the QoS grade of multi-stream service, a plurality of stream business are mapped as at least one QoS grade business, and carry out resource request and send according to the data of the resource of asking to QoS grade business according to the professional corresponding QoS grade of QoS grade;
Receiving end device, be used for obtaining respectively resource assignment information, carry the identification information of a QoS grade in each resource assignment information, and receive the data of the QoS grade business corresponding with the identification information of QoS grade according to resource assignment information, obtain the multi-stream service data of the correspondence of transmitting terminal device transmission.
The function of the transmitting terminal device of above-mentioned multi-stream service transmission and the function of receiving end device can be integrated in network side simultaneously or be integrated in end side.Fig. 5 has provided a kind of transmitting terminal function and receiving terminal function with the multi-stream service transmission and has been integrated in network side, form the example of the network side apparatus of multi-stream service transmission, transmitting terminal function and receiving terminal function that Fig. 6 has provided the multi-stream service transmission are integrated in end side, form the example of the end side device of multi-stream service transmission, Fig. 7 has provided the example of corresponding multi-stream service transmission system.
Referring to Fig. 5, be the structural representation of the network side apparatus of the multi-stream service of embodiment of the invention transmission, this device comprises: mapping block, resource distribution module, forward direction sending module, reverse receiver module.
Mapping block is used for according to the type of the multi-stream service of storage and the mapping relations information of QoS grade multi-stream service being mapped as a plurality of QoS grade business.This mapping block also is used for carrying out with end side the negotiation of map information.
Resource distribution module is used for obtaining the QoS grade that the multi-stream service mapping obtains from mapping block, is respectively the corresponding resource of QoS grade traffic assignments according to this QoS grade.When carrying out the transmission of forward direction multi-stream service, this module also will send to terminal by assignment message with the resource information of distributing.
The forward direction sending module is used for respectively QoS grade business being carried out coded modulation in physical layer, and sends the multi-stream service data to terminal according to resource and the professional corresponding power of each QoS grade that resource distribution module distributes.Wherein, comprise also in the forward direction sending module that power bias is provided with submodule, be used for the performance number of the data flow (this data flow is the data flow of QoS grade business) after encoding being adjusted according to the professional corresponding power bias of QoS grade.
Oppositely receiver module is used for the reverse multi-stream service data according to the resource receiving terminal transmission of resource distribution module distribution.
Referring to Fig. 6, be the structural representation of the end side device of the multi-stream service of embodiment of the invention transmission, this device comprises: mapping block, oppositely sending module, forward direction receiver module.
Mapping block is used for according to the type of the multi-stream service of storage and the mapping relations information of QoS grade multi-stream service being mapped as a plurality of QoS grade business.This mapping block also is used for carrying out with network side the negotiation of map information.
Oppositely sending module is used for respectively multi-stream service being carried out coded modulation in physical layer, and sends QoS grade business datum to network side according to resource allocation information that receives from network side and the professional corresponding power of each QoS grade.Wherein, oppositely comprise that also power bias is provided with submodule in the sending module, be used for the performance number of the traffic data (this data flow is the data flow of QoS grade business) after encoding being adjusted according to the professional corresponding power bias of QoS grade.
The resource information that the forward direction receiver module is used for distributing according to network side receives the forward direction multi-stream service data that network side sends.
Referring to Fig. 7, be the structural representation of the multi-stream service transmission system of the embodiment of the invention, this system comprises network side apparatus shown in Figure 5 and end side device shown in Figure 6.
Mapping block in the network side apparatus is connected with mapping block in the end side device, is used for carrying out map information between the two and consults;
Resource distribution module in the network side apparatus respectively with the end side device in reverse sending module be connected with the forward direction receiver module, the resource information that provides network side to distribute to reverse sending module and forward direction receiver module is provided;
Reverse receiver module in the network side apparatus is connected with reverse sending module in the end side device, is used to receive the reverse multi-stream service data that the latter sends;
Forward direction receiver module in the end side device is connected with forward direction sending module in the network side apparatus, is used to receive the forward direction multi-stream service data that the latter sends.
By above description as can be known, the embodiment of the invention makes the business of different priorities use different resources by the reasonable mapping to multi-stream service and QoS grade, and transmitting power in the time of has especially improved the resource utilization of multi-stream service transmission.And pass through to each traffic data in the multi-stream service is provided with the professional corresponding power bias of the QoS grade corresponding with this Business Stream, thereby satisfy under the prerequisite of performance at assurance own service channel power, reduce interference to adjacent sectors.
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 (16)
1. the transmission method of a multi-stream service is characterized in that, may further comprise the steps:
The transmitting terminal of multi-stream service is mapped as at least one QoS grade business according to the corresponding relation of the type and the quality of service QoS grade of multi-stream service with a plurality of stream business;
The transmitting terminal of described multi-stream service carries out resource request according to the professional corresponding QoS grade of described QoS grade and sends according to the data of the resource of asking to described QoS grade business.
2. the method for claim 1 is characterized in that, the corresponding relation of described stream type of service and QoS grade is by determining through consultation between the transmitting terminal of described multi-stream service and the receiving terminal.
3. the method for claim 1 is characterized in that, described request to resource comprise: time resource, frequency resource, power resource and space antenna resource.
4. the method for claim 1 is characterized in that, the transmitting terminal of described multi-stream service sends according to the data of the resource of asking to described QoS grade business, comprising:
Respectively the data of described QoS grade business are carried out coded modulation, and respectively according to for described QoS grade service request to resource will send through the data after the coded modulation.
5. the method for claim 1 is characterized in that, the transmitting terminal of described multi-stream service is user terminal or network side;
When the transmitting terminal of described multi-stream service is user terminal, describedly send according to the data of the resource of asking to described QoS grade business, comprising:
Described user terminal receives the resource allocating message that network side sends, and carries the identification information of QoS grade in the described assignment message; Described resource allocating message is the resource allocating message that is sent according to the resource request of different QoS grade correspondence respectively by network side;
Described user terminal will be corresponding with the identification information of described QoS grade the data of QoS grade business send.
6. method as claimed in claim 5, it is characterized in that, network side also comprises step after sending resource allocating message: send to described user terminal and remove assignment message, the described identification information that goes to carry in the assignment message QoS grade, indicating user terminal go the assignment multi-stream service shared resource corresponding with the identification information of described QoS grade.
7. the method for claim 1 is characterized in that, before the data of described QoS grade business are sent, also comprises:
Power bias according to QoS grade correspondence is adjusted for the professional power resource of being asked of corresponding QoS grade.
8. the transmission method of a multi-stream service is characterized in that, may further comprise the steps:
The receiving terminal of multi-stream service obtains resource assignment information respectively, carries the identification information of a QoS grade in each resource assignment information;
The receiving terminal of described multi-stream service obtains corresponding multi-stream service data according to the data of the described resource assignment information reception QoS grade business corresponding with the identification information of described QoS grade; Described QoS grade business is by the transmitting terminal of the described multi-stream service corresponding relation according to the type and the QoS grade of multi-stream service, and described multi-stream service is mapped as corresponding QoS grade business.
9. method as claimed in claim 8 is characterized in that, also comprises in the described resource assignment information: time resource information, frequency resource information, power resource information and space antenna resource information.
10. method as claimed in claim 8, it is characterized in that, the receiving terminal of described multi-stream service also comprises step after receiving the data of described QoS grade business: according to the identification information of described QoS grade, the data to the QoS grade business that receives send acknowledge message respectively.
11. the transmitting terminal device of a multi-stream service transmission is characterized in that, comprising:
Mapping block is used for the corresponding relation according to the type and the QoS grade of multi-stream service, and a plurality of stream business are mapped as at least one QoS grade business;
The resource request module is used for carrying out resource request according to the professional corresponding QoS grade of described QoS grade;
Sending module is used for sending according to the data of the resource of asking to described QoS grade business.
12. transmitting terminal device as claimed in claim 11 is characterized in that, the request of described resource request module to resource comprise: time resource, frequency resource, power resource and space antenna resource.
13. transmitting terminal device as claimed in claim 11 is characterized in that, also comprises:
Power regulation module, the power bias that is used for according to QoS grade correspondence is that the professional transmitted power of being asked of corresponding QoS grade is adjusted.
14. the receiving end device of a multi-stream service transmission is characterized in that, comprising:
Resource information obtains module, is used for obtaining respectively resource assignment information, carries the identification information of a QoS grade in each resource assignment information;
Receiver module is used for the data according to the resource assignment information reception that the acquires QoS grade business corresponding with the identification information of described QoS grade, obtains corresponding multi-stream service data; Described QoS grade business is by the transmitting terminal of the described multi-stream service corresponding relation according to the type and the QoS grade of multi-stream service, and described multi-stream service is mapped as corresponding QoS grade business.
15. receiving end device as claimed in claim 14 is characterized in that, also comprises in the described resource assignment information: time resource information, frequency resource information, power resource information and space antenna resource information.
16. the transmission system of a multi-stream service is characterized in that, comprises transmitting terminal device and receiving end device, wherein
The transmitting terminal device, be used for corresponding relation according to the type and the QoS grade of multi-stream service, a plurality of stream business are mapped as at least one QoS grade business, and carry out resource request and send according to the data of the resource of asking to described QoS grade business according to the professional corresponding QoS grade of described QoS grade;
Receiving end device, be used for obtaining respectively resource assignment information, carry the identification information of a QoS grade in each resource assignment information, and receive the data of the QoS grade business corresponding with the identification information of described QoS grade according to described resource assignment information, obtain the multi-stream service data of the correspondence of described transmitting terminal device transmission.
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| CN2007101631970A CN101175039B (en) | 2006-10-25 | 2007-10-16 | Multi-stream service transmission method and its device and system |
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| CN200610150420 | 2006-10-25 | ||
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| CN2007101631970A CN101175039B (en) | 2006-10-25 | 2007-10-16 | Multi-stream service transmission method and its device and system |
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