CN101686495A

CN101686495A - Method and device for assigning service grouping resources

Info

Publication number: CN101686495A
Application number: CN200810223243A
Authority: CN
Inventors: 钱韬; 童剑飞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2010-03-31
Anticipated expiration: 2028-09-28
Also published as: CN101686495B

Abstract

The invention discloses a method and a device for assigning service grouping resources, belonging to the communication field. The method for assigning the service grouping resources comprises the following steps: grouping the users according to the type of the service and determining the modulating and coding scheme (MCS) of the users in the groups; calculating subcarrier efficiency (SE) which corresponds to the MCS according to the determined MCS of the users; calculating the number of resource blocks (RB) of needed shared resources which correspond to the MCS according to the size of a service data packet, the size of the RB of the minimum assignment unit and the SE; indicating the number of the RB and the MCS which correspond to the users by using the corresponding bit of a bitmap to assign resources to the users in the groups. The device for assigning the service grouping resources comprises a fist acquiring module, a second acquiring module, a calculating module and an assigning module. The resources are assigned to the users in the groups according to the information on the quality of user channels, the size of the shared information and the number of the RB of needed sharedresources which correspond to the MCS, the limitation that the users in the groups must have similar channel conditions is lessened, and the expenditure on the assignment of the service grouping resources is reduced.

Description

A kind of method and apparatus of realizing the traffic packets resource assignation

Technical field

The present invention relates to the communications field, particularly a kind of method and apparatus of realizing the traffic packets resource assignation.

Background technology

Along with the develop rapidly of wireless communication technology, present wireless communication system can provide multimedia services such as voice, video and data.These wireless communication systems provide different multiple access techniques that resources shared is provided by a plurality of users to this system of access, and wherein, resources shared comprises time, frequency, power etc.And existing multiple access technique comprises TDMA (Time Division Multiple Access, the time division multiple access access technology), FDMA (Frequency Division MultipleAccess, the frequency division multiple access access technology), CDMA (Code Division Multiple Access, the code division multiple access access technology), OFDMA (Orthogonal Frequency Division Multiple Access, OFDM access technology) etc.OFDMA is widely used with the advantage of himself, normal structure 3GPP (the 3rd Generation PartnerProject for example, third generation partner program) (the Long Term Evolution of the LTE in, Long Term Evolution), normal structure 3GPP2 (the 3rd Generation Partner Project 2, third generation partner program 2) (the Ultra Mobile Broadband of the UMB in, the enhancement mode mobile broadband), and IEEE (The Institute of Electricaland Electronics Engineers, U.S. electric and electronic engineering association) 16 etc. is the OFDMA technology that adopts.

Wireless communication system mainly is made up of terminal SS (Subscriber Station, travelling carriage or user terminal), base station (BS, Base Station) and core net, and terminal refers generally to the equipment of network service, for example mobile phone or notebook and so on.Wherein, the Radio Resource (comprising running time-frequency resource and power etc.) of descending (by the communication of base station to terminal) and up (by communicating by letter of terminal to base station) is dispatched by the base station according to the mode of sharing.Each base station down direction can insert a plurality of terminals, the sharing base scheduled resources.Up general the base station that connects in the network of each terminal.

VoIP (Voice over Internet protocol, the voice-over-net business), it is a very important class business in the existing wireless communications system, multiple different speech coding form is arranged, as AMR (Adaptive multi-rate, adaptive multi-rate), EVRC (Enhanced variable Rate Coder, Enhanced Variable Rate Coder), different speech coding forms have different bandwidth demands, and the scheduling mode that designs at VoIP at present mainly contains two kinds:

Prior art 1:3GPP2 (UMB) has proposed the notion of VoIP group assignment, user SS is divided into different groups according to different channel conditions, QPSK (Quaternary Phase Shift Keying for example, Quaternary Phase Shift Keying) group, 16QAM (16Quadrature.Amplitude Modulation, 16 quadrature amplitude modulation) group and 64QAM (64Quadrature.Amplitude Modulation, 64 quadrature amplitude modulation) group, if the user is positioned at the QPSK group, illustrate that then its channel condition is poor.To each user in same group, the required running time-frequency resource size of its VoIP bag all is identical, and base station BS can be fixing its position in organizing of assignment of each user building when group, can come corresponding by in assignment message, issuing bitmap bitmap with the user in the group, the user passes through the clear and definite own affiliated bit state of bitmap, and determines the position of own affiliated resource according to the state of bitmap.Referring to Fig. 1, by 5 user SS1, the VoIP group that SS2, SS3, SS4, SS5 form, transverse axis is represented the time-domain resource in the wireless communication system among the figure, and the longitudinal axis is represented frequency domain resource; Time-domain resource represents that with OFDMA symbol OFDM A symbol frequency domain resource is represented with OFDMA subcarrier OFDMAsubcarrier in the OFDMA system in the OFDMA system; The minimum particle size unit of RB (Resource Block, Resource Block) representative carrying data.In the standard definition of existing 16m, define a RB and be 6 OFDMA symbols on the time domain, 18 subcarriers on the frequency domain, promptly the size of RB is 18 * 6.Defined 5 RB among Fig. 1 as this group shared resource of (comprising SS1, SS2, SS3, SS4, SS5), each user activates and need take 1 RB, and mourning in silence then need not to take RB.The User Status of supposing present frame is respectively the SS1 activation, and SS2 mourns in silence, and SS3 activates, and SS4 mourns in silence, SS5 activates, and then the bitmap that issues of BS is 10101, and all activated user takies resource according to the order of sequence, first of the corresponding bitmap of SS1 is designated as 1 and promptly activates, and then it takies first RB; Second of the corresponding bitmap of SS2 is designated as 0 and promptly mourns in silence, and do not take RB; The 3rd of the corresponding bitmap of SS3 is designated as 1 and promptly activates, and SS3 knows that by bitmap the front has only a user (SS1) to activate, and has taken a RB, so SS3 takies second RB; In like manner, SS4 also is in the state of mourning in silence, and does not take RB; SS5 is in state of activation, takies the 3rd RB, and remaining two resources can be given all the other users by temporary scheduling.

This scheme has very strong restriction for user grouping, in addition, the shared resource size of configuration is bad to be determined, if be provided with excessive, then can cause having many resources not made full use of, cause the wasting of resources, if be provided with too small by the voip user in the group, then can cause the user of some activation to be scheduled for, and influence user's quality of service.

Prior art 2 is improved at this group assignment: replace 1 bitmap in the prior art 1 with 2 bitmap.Wherein, first bitmap is used to refer to the state that the user mourns in silence or activates, and the implication of this bitmap is identical with bitmap implication in the prior art 1; Second bitmap indicates its corresponding voice packet size at the excited users among first bitmap.Below in conjunction with accompanying drawing 2, be that example is elaborated to prior art 2 with the cycle 20ms of the new packet generation of VoIP.

Referring to Fig. 2, a VoIP group that is formed by 20 user SS1～SS20 is divided into 4 5ms Interlace:Interlace0, Interlace1, Interlace2, Interlace3 at interval with the cycle 20ms of the new packet generation of VoIP; Wherein, the time interval that Interlace is provided with is the cycle of finishing a data transfer and feeding back the correct and wrong state and determining whether thus to retransmit, SS1～SS5 is in Interlace0, SS6～SS10 is in Interlace1, SS11～SS15 is in Interlace2, and SS16～SS20 is in Interlace3.Need two bitmap of broadcasting at interval constantly at each Interlace: the mourning in silence of respective user, activation and retransmission packet state in first bitmap indication group; Because SS1, SS2, SS3, SS4, SS5 are included among the Interlace0,, whether be to mourn in silence or state of activation (0 indication silent status, 1 indication state of activation) so corresponding bit position indicates that it is new bag transmission; Remaining bit position indicates other corresponding users whether retransmission packet (1 indication has re-transmission, and 0 indication does not have retransmission packet) is arranged.Second bitmap indicates corresponding excited users or the shared bag size (0 indication bag takies 1 RB, and 1 indication bag takies 2 RB) of retransmission packet user.

Bitmap specifically is expressed as among Fig. 2:

SS1 is an excited users, and Qi Xinbao takies 1 RB;

SS2 is an excited users, and Qi Xinbao takies 1 RB;

SS3 is the user that mourns in silence, and it does not take RB;

SS4 is the user that mourns in silence, and it does not take RB;

SS5 is an excited users, and Qi Xinbao takies 2 RB;

SS6 is for retransmitting the user, and it does not have retransmission packet (the bag transmission promptly is correct);

SS7 is for retransmitting the user, and it does not have retransmission packet;

SS8 is for retransmitting the user, and it has retransmission packet, and retransmission packet takies 1 RB;

SS9 is for retransmitting the user, and it does not have retransmission packet;

SS10 is for retransmitting the user, and it has retransmission packet, and retransmission packet takies 1 RB;

SS11 is for retransmitting the user, and it does not have retransmission packet;

SS12 is for retransmitting the user, and it does not have retransmission packet;

SS13 is for retransmitting the user, and it does not have retransmission packet;

SS14 is for retransmitting the user, and it does not have retransmission packet;

SS15 is for retransmitting the user, and it has retransmission packet, and retransmission packet takies 2 RB;

SS16 is for retransmitting the user, and it does not have retransmission packet;

SS17 is for retransmitting the user, and it has retransmission packet, and retransmission packet takies 1 RB;

SS18 is for retransmitting the user, and it does not have retransmission packet;

SS19 is for retransmitting the user, and it does not have retransmission packet;

SS20 is for retransmitting the user, and it does not have retransmission packet.

Suppose in the group shared resource to each Interlace at interval the resource size of assignment be 10 RB, then the user in Interlace0, take resource according to above-mentioned bitmap situation as shown in Figure 3.

To sum up, the inventor finds that there is packet limit in prior art, the problem that resource allocation overhead is excessive.

Summary of the invention

In order to reduce the restriction that must have similar channel condition to user in organizing, reduce the expense of resource assignation, the embodiment of the invention provides a kind of method and apparatus of realizing the traffic packets resource assignation:

On the one hand, provide a kind of method that realizes the traffic packets resource assignation, described method comprises:

According to the channel quality status information of user in the group of same type of service, determine user's modulation coding mode MCS;

According to the user's who determines MCS, calculate the subcarrier efficient SE of described MCS correspondence;

According to the size of business data packet, the size of smallest allocation unit resource piece RB, and the subcarrier efficient SE of the MCS correspondence that calculates, the number of the Resource Block RB of the required shared resource of calculating MCS correspondence;

According to the number of shared resource size, the RB that calculates, utilize described group in the corresponding bits bit of bitmap bitmap indicate the required RB number and the MCS mode of described user's correspondence, be embodied as described user's assigned resources in the group.

On the other hand, the embodiment of the invention provides a kind of device of realizing the traffic packets resource assignation, and described device comprises:

First acquisition module is used for the channel quality status information according to user in the group of same type of service, determines user's modulation coding mode MCS;

Second acquisition module is used for the MCS according to the definite user of described first acquisition module, calculates the subcarrier efficient SE of described MCS correspondence;

Computing module is used for the size according to business data packet, the size of described smallest allocation unit resource piece RB, and the subcarrier efficient SE of the MCS correspondence that calculates, the number of the Resource Block RB of the required shared resource of calculating MCS correspondence;

Distribution modulator, the number of Resource Block RB that is used for the required shared resource of the MCS correspondence that calculates according to shared resource size, described computing module, the corresponding bits bit of bitmap bitmap indicates the required RB number and the MCS mode of described user's correspondence in utilizing described group, is embodied as described user's assigned resources in the group.

The beneficial effect of the technical scheme that the embodiment of the invention provides is:

Channel quality status information by the user, and the number of the Resource Block RB of the required shared resource of shared resource size, MCS correspondence, it is user's assigned resources in the corresponding group that realization utilizes bitmap, reduced restriction to user grouping, minimizing reduces the expense of resource assignation to organizing the restriction that interior user must have similar channel condition.

Description of drawings

Fig. 1 is the VoIP group assignment schematic diagram that prior art 1 provides;

Fig. 2 is the VoIP group assignment schematic diagram that prior art 2 provides;

Fig. 3 is user that prior art 2 provides takies resource according to bitmap a schematic diagram;

Fig. 4 is the method flow schematic diagram that the embodiment of the invention 1 provides;

Fig. 5 is the resource occupation schematic diagram under first realization mechanism that provides of the embodiment of the invention 1;

Fig. 6 is the resource occupation schematic diagram under second realization mechanism that provides of the embodiment of the invention 1;

Fig. 7 is the resource occupation schematic diagram that the embodiment of the invention 2 provides;

Fig. 8 is a HARQ retransmission packet transmission schematic diagram under the sufficient situation of the shared resource that provides of the embodiment of the invention 2;

Fig. 9 is a HARQ retransmission packet transmission schematic diagram under the not enough situation of the shared resource that provides of the embodiment of the invention 2;

Figure 10 is an order back resource occupation schematic diagram by turns under the not enough situation of the shared resource that provides of the embodiment of the invention 3;

Figure 11 is the device schematic diagram of the realization traffic packets resource assignation that provides of the embodiment of the invention 4.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.

In implementing process of the present invention, the inventor finds that the scheme that provides at prior art 1 has very strong restriction for user grouping, user in the not only requirement group will have identical modulation system (as QPSK, 16QAM, 64QAM etc.), must have identical coded system, could guarantee that like this all users take identical running time-frequency resource; In addition, the shared resource of configuration size is bad to be determined, if be provided with excessive, then can cause having many resources not made full use of, cause the wasting of resources, if be provided with too small by the voip user in the group, then can cause the user of some activation to be scheduled for, and influence user's quality of service.In implementing process of the present invention, the inventor finds that also prior art 2 need indicate all users' information in each Interlace, can increase more redundant digit, and, because user position information is relatively-stationary, when shared resource was sufficient, the priority of all users in group was equality, all can be scheduled for; If the shared resource deficiency can cause the user of the bitmap back bit indication shared resource in can't assigned group, cause the possible scheduler latency of these specific users.Therefore, in order to have reduced the restriction of grouping, promptly reduce the restriction that must have similar channel condition to user in organizing, reduce the expense of resource assignation, various embodiments of the present invention provide a kind of method that realizes the traffic packets resource assignation, and this method thes contents are as follows:

According to MCS, calculate the subcarrier efficient SE of MCS correspondence;

According to the size of business data packet, the size of smallest allocation unit resource piece RB, and subcarrier efficient SE, the number of the Resource Block RB of the required shared resource of calculating MCS correspondence;

According to the number of shared resource size, the RB that calculates, the required RB number and the MCS of the corresponding bit indication user correspondence of the bitmap bit bitmap in the utilization group.

Wherein, in channel quality status information, determine also to comprise: be used for before user's the step of modulation coding mode MCS according to type of service according to the user in the group of same type of service, business is divided into groups, make the user of same type of service be positioned at same group.

Further, when business datum is not continued the identical shared resource of assignment, the method that the embodiment of the invention provides also comprises:

The original position of a shared resource of indication on running time-frequency resource, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then in current time interval interlace,, user's dynamic dispatching retransmits the HARQ retransmission packet automatically for mixing.

Further, when business datum is continued the identical shared resource of assignment, method also comprises:

When the identical shared resource that continues assignment is sufficient,, then in current time interval interlace the identical shared resource in user's assignment position if when the error of transmission of user's data bag occurring in the previous time interval interlace;

When the identical shared resource that continues assignment is inadequate, if when occurring the error of transmission of user's data bag in the previous time interval interlace, judge whether error data packets occurs is the packet that is scheduled for shared resource in the previous time interval, if then be the identical shared resource in user's assignment position in current time interval interlace; Otherwise, in current time interval interlace, retransmit the HARQ retransmission packet automatically for user's dynamic dispatching mixes.When resource is inadequate in the solution group further, realize the transmission of HARQ retransmission packet by specific mechanism.

Further, when the identical shared resource that continues assignment is inadequate, the method that the embodiment of the invention provides also comprises: the cycle according to specific negotiation is rotated the sequence of positions of user in bitmap, as cycle, come the sequence of positions of user in bitmap by turns according to each business datum packet generation.Thereby, can rotate to reach all users' of equity dispatching purpose by the position of group being carried out between the user.

Below in conjunction with following each embodiment the technical scheme that the embodiment of the invention provides is described in detail.

Embodiment 1

The embodiment of the invention provides a kind of method that realizes the traffic packets resource assignation, the method that the embodiment of the invention provides has reduced the restriction of grouping, promptly reduced the restriction that must have similar channel condition to user in organizing, for convenience of explanation, present embodiment is that example describes with the VoIP business specifically, referring to Fig. 4, particular content is as follows:

101:, determine user's modulation coding mode MCS according to user's channel quality status information.See for details as follows:

Wherein, because present embodiment is to be the explanation that example is carried out with the VoIP business, it should be noted that especially, before carrying out this step 101, base station BS can be according to type of service, the user is divided into groups, make the user be under the jurisdiction of same type of service be in the group, present embodiment all is that the user of VoIP type of service is that example describes with user in organizing.

In wireless communication system, during data downstream, the channel quality status that base station BS records according to the user is determined MCS (the Modulation And Coding Scheme that the respective user data will adopt, modulation coding mode): user's channel condition is good more, and the modulating-coding exponent number that it adopted is high more.In existing communication system, common several modulation systems have: QPSK, 16QAM, 64QAM etc., encoding rate can be adjusted flexibly according to the coded system that adopts, be that example is introduced the relation of concrete modulation coding mode MCS and resource RB in detail and the user's corresponding informance by 2bit among the bitmap is determined its RB number that takies and MCS with IEEE 16m below, can reduce the restriction of grouping like this.

Resource Block RB (Resource Block) is the minimum particle size unit of resource assignation, the RB size definition of IEEE 16m is 18 * 6, be that a RB comprises 6 OFDMA symbols (symbols) on the time domain, a RB then comprises 18 subcarriers (subcarriers) on frequency domain, so 1 RB includes 18 * 6=108 subcarrier (subcarriers) altogether.Wherein,

If adopt the modulation system of QPSK, then a subcarrier (subcarriers) can carry 2bits;

If adopt the modulation system of 16QAM, then a subcarrier (subcarriers) can carry 4bits;

If adopt the modulation system of 64QAM, then a subcarrier (subcarriers) can carry 6bits.

Encoding rate is meant (the information bit size before the coding)/(the information bit size after the coding), and wherein, encoding rate one is decided to be the value less than 1, for example, if the information bit before the coding is: 101, the information bit after the coding is 110011, then its encoding rate is 3/6=1/2; For another example, if the information bit after the coding is 111000111, then its encoding rate is 3/9=1/3.

To sum up, with modulation system (QPSK, 16QAM, 64QAM) with encoding rate (1/2,1/3,1/4,2/3 ...) combine and obtain the MCS that understands on our ordinary meaning.

102:, calculate the subcarrier efficient SE of this MCS correspondence according to user's MCS.See for details as follows:

Wherein, with WiMAX (World Interoperability for Microwave Access, World Interoperability for Microwave Access, WiMax) system is an example, has provided the common MCS:QPSK of several classes 1/8, QPSK 1/4, QPSK 1/2, QPSK 3/4,16QAM 1/2,16QAM 3/4,64QAM 2/3,64QAM 3/4,64QAM 5/6.At the unique SE (Subcarrier Efficiency, subcarrier efficient) of every class MCS definition, SE has expressed the real information bit number that each carrier wave of corresponding MCS can carry.Referring to table 1, the SE value by above-mentioned a few class MCS correspondences as can be seen: user's channel condition is good more, and the modulating-coding exponent number that it adopted is high more, but loaded information bit is many more on its each subcarrier, and its required RB number is just few more.On the contrary, poor more when user's channel condition, the modulating-coding exponent number that it adopted is low more, but loaded information bit is just few more on its each subcarrier, and its required RB number is just many more.

Table 1

??MCS	??QPSK ??1/8	??QPSK ??1/4	??QPSK ??1/2	??QPSK ??3/4	??16QAM ??1/2	??16QAM ??3/4	??64QAM ??2/3	??64QAM ??3/4	??64QAM ??5/6
??MCS	??QPSK ??1/8	??QPSK ??1/4	??QPSK ??1/2	??QPSK ??3/4	??16QAM ??1/2	??16QAM ??3/4	??64QAM ??2/3	??64QAM ??3/4	??64QAM ??5/6	??SE	??2×1/ ??8 ??＝0.25	??2×1/ ??4 ??＝0.5	??2×1/ ??2 ??＝1	??2×3/ ??4 ??＝1.5	??4×1/ ??2 ??＝2	??4×3/ ??4 ??＝3	??6×2/ ??3 ??＝4	??6×3/ ??4 ??＝4.5	??6×5/6 ??＝5

103:, calculate the number of Resource Block RB of the required shared resource of MCS correspondence according to the size of business data packet, the size of smallest allocation unit resource piece RB and the subcarrier efficient SE of MCS correspondence.See for details as follows:

Wherein, to be specially the VoIP VoP be example to packet in the present embodiment, press IEEE 16m EMD (EvaluationMethodology Document, the appraisal procedure document) the VoIP voice packet size that provides, be not used for HARQ (Hybrid Automatic Repeat Request adding physical layer, the automatic re-transmission of mixing) CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)) before, it wraps big or small packet size is 288bits, wherein, HARQ is meant if a packet error of transmission for the first time for the second time can adopt the mode of HARQ to retransmit; CRC is used to judge whether current bag passes mistake, whether needs to carry out HARQ, and its data carried by data size is 16bits; The size of data of then having added the VoIP bag needs behind the CRC is: VoIP size+CRC=304bits.Wherein, because the implementation of employing group assignment, can omit the MAC header (Media access control header, medium access control head) that is used for user ID, promptly to wrap needed size of data be VoIP size+CRC=304bits to VoIP; If do not omit MAC header, MAC header data carried by data size is 24bit, and then the size of data of VoIP bag needs is: VoIP size+CRC+MACheader=304+24=328bit.For convenience of explanation, present embodiment is that example is carried out the example explanation with the situation of omitting MAC header, and promptly the big or small packet size of VoIP packet is 304bits.Present embodiment is that 8 * 6=108 is an example with the sizes values of the Resource Block RB of shared resource still.Relation below in conjunction with table 2 couple VoIP bag transmission data SE and required RB number and modulation coding mode is described in detail.

Table 2

(VoIP?packet?size：304bits????RB?size：18×6＝108)

??MCS	??QPSK ??1/8	??QPSK ??1/4	??QPSK ??1/2	??QPSK ??3/4	??16QAM ??1/2	??16QAM ??3/4	??64QAM ??2/3	??64QAM ??3/4	??64QAM ??5/6
??MCS	??QPSK ??1/8	??QPSK ??1/4	??QPSK ??1/2	??QPSK ??3/4	??16QAM ??1/2	??16QAM ??3/4	??64QAM ??2/3	??64QAM ??3/4	??64QAM ??5/6	??SE	??2×1/ ??8 ??＝0.25	??2×1/ ??4 ??＝0.5	??2×1/ ??2 ??＝1	??2×3/ ??4 ??＝1.5	??4×1/ ??2 ??＝2	??4×3/ ??4 ??＝3	??6×2/ ??3 ??＝4	??6×3/ ??4 ??＝4.5	??6×5/6 ??＝5
??RB?num	??12	??6	??3	??2	??2	??1	??1	??1	??1	??SE	??2×1/ ??8 ??＝0.25	??2×1/ ??4 ??＝0.5	??2×1/ ??2 ??＝1	??2×3/ ??4 ??＝1.5	??4×1/ ??2 ??＝2	??4×3/ ??4 ??＝3	??6×2/ ??3 ??＝4	??6×3/ ??4 ??＝4.5	??6×5/6 ??＝5

As shown in table 2, with QPSK 1/8 is example, its corresponding SE is 0.25, because VoIP packet size=304bits, RB size=18 * 6=108 and since the number of needed RB be greater than VoIP packet size/ (SE * RB size) and with the adjacent integer value of this VoIP packet size/ (SE * RB size), therefore, when utilizing this QPSK 1/8 to transmit data, the number of the RB that it is required is:

At first, behind calculating subcarrier efficient and the resource block size product, obtain the quotient of packet sizes values and above-mentioned product value, as,

304/(0.25×108)＝11.259，

Then, obtain the number of the required RB of user according to above-mentioned quotient.Specific as follows:

When above-mentioned quotient was integer value, then this integer value was the number of the required RB of user;

When above-mentioned quotient is non integer value, then this non-integer quotient is rounded and add 1 value, this numerical value is the number of the required RB of the user that obtains.For example:

At above-mentioned quotient 11.259, because this value is for non integer value, then this 11.259 rounded and obtain 11, add again and will obtain the number of integer value 12 after 1 as selected RB.

In like manner, the number of the RB that QPSK 1/4 is required adds 1 for 304/ (0.5 * 108)=5.63 are rounded, and promptly 6;

In like manner, can get the number of the pairing required RB of each MCS, as shown in table 2.

What pay particular attention to is, the size of the described business data packet of present embodiment is generally fixed size, also nisi size is constant and be somebody's turn to do " fixing ", those skilled in the art can be known because the VoIP business data packet includes the full rate bag, 1/2 rate packets, 1/4 rate packets and so on, still can think this business data packet be fixed size and equal the full rate bag, because the probability that 1/2 or 1/4 rate packets occurs is less, but the appearance of different rates bag does not influence the realization of the method that the embodiment of the invention provides.

104: according to the number of the Resource Block RB of the required shared resource of shared resource size, MCS correspondence, utilize the corresponding bit of bitmap bitmap to indicate the required RB number and the MCS mode of described user's correspondence, be embodied as described user's assigned resources in the group.

Wherein, the form of bitmap designator can be adopted in the base station, express the information state (mourn in silence, activate) of each user in the group, and the individual numerical value of the shared shared resource piece RB of each user, from table 2, can draw: if the exponent number of MCS is more than or equal to QPSK 1/2, then required RB only has three class situations: required 1 RB, required 2 RB, required 3 RB; When if user's exponent number is higher than 16QAM 3/4, any class MCS transmits VoIP (304bits) all only needs 1 RB, under the constant prerequisite of the number of required RB, can adopting more, the MCS of low order guarantees transmission performance, all can adopt 16QAM 3/4 as its MCS, can distinguish voip user's state this moment with 2bits:

00: the user mourns in silence, and does not have corresponding VoIP packet, does not take RB;

01: the user activates and corresponding MCS is chosen as 16QAM 3/4, takies 1 RB;

10: the user activates and corresponding MCS is chosen as QPSK 3/4, takies 2 RB;

11: the user activates and corresponding MCS is chosen as QPSK 1/2, takies 3 RB;

The inventor is when enforcement is of the present invention, by adopting the designator (00,01,10,11) of 2bit among the bitmap, realization is determined the RB number and the MCS of CU according to bitmap, reduced restriction to user grouping, promptly all users in the not necessarily requirement group have similar channel condition, so long as the voip user just can be divided into one group.

It should be noted that especially, under the relatively poor situation of certain user's channel condition, described user is adopted the lower MCS mode of above-mentioned exponent number,, following two kinds of realization mechanisms can be arranged the transmission of such user's data bag as the situation of QPSK 1/8 and QPSK 1/4:

One, QPSK 1/8 and QPSK 1/4 are classified as QPSK 1/2, and (this QPSK 1/2 can be defined as with reference to modulation coding mode MCS, this is the maximum modulation coding mode MCS of RB number that needs when carrying out the user resources scheduling with reference to modulation coding mode MCS), the transmission performance of QPSK 1/8 and QPSK 1/4 realizes by HARQ mechanism;

Two, according to channel condition with reference to modulation coding mode MCS, the user is divided, this is with reference to the normative reference of modulation coding mode MCS for the division user grouping, all voip users are divided into center of housing estate group and cell edge group, wherein, the user of center of housing estate group is for being higher than QPSK 1/2; The user of cell edge group is for being lower than QPSK 1/2, and soon QPSK 1/2, QPSK 1/4, QPSK 1/8 are classified as one group; Still (00 mourns in silence Cell Center User by above realization mechanism; 01 activates and takies 1 RB; 10 activate and take 2 RB; 11 activate and take 3 RB), and the Cell Edge User state can be according to following realization mechanism (still distinguishing the Cell Edge User state of VoIP) with 2bit:

01: the user activates and corresponding MCS is chosen as QPSK 1/2, takies 3 RB;

10: the user activates and corresponding MCS is chosen as QPSK 1/4, takies 6 RB;

11: the user activates and corresponding MCS is chosen as QPSK 1/8, takies 12 RB;

With reference to the accompanying drawings above-mentioned two kinds of realization mechanisms are specifically described.

Suppose that certain frame has 20 user SS1～SS20, the user that corresponding state is respectively odd-numbered frame mourns in silence, and the corresponding respectively state of the user of even frame is:

SS2：QPSK?1/8????SS4：QPSK?1/2????SS6：16QAM?3/4???SS8：QPSK?3/4

SS10：QPSK?1/2???SS12：64QAM?5/6??SS14：16QAM?1/2??SS16：64QAM?2/3

SS18：16QAM?3/4??SS20：64QAM?3/4

At above-mentioned first kind of realization mechanism: all voip users are placed in the identical group; Wherein, also can suitably divide into groups, but grouping is without any restrictive condition according to capacity; State according to user SS1～SS20 correspondence in group, the bitmap of its broadcasting is: 00 11 00 11 00 01 00 10 00 11 00 01 00 10 00 01 00 01 00 01, one has 20 users, the corresponding 2bits of each user, then bitmap is the fixed length of 20 * 2=40bits, and its occupation condition is referring to Fig. 5.

At above-mentioned second kind of realization mechanism: the group that the user is divided into center of housing estate group and cell edge according to its MCS.According to the state of user SS1～SS20 correspondence in group, user SS1～SS20 is divided into following two groups, wherein, QPSK 1/2 can be included in any one group.

Center of housing estate (group 1): SS5, SS6, SS7, SS8, SS11, SS12, SS13, SS14, SS15, SS16, SS17, SS18, SS19, SS20.

Cell edge (group 2): SS1, SS2, SS3, SS4, SS9, SS10.

Wherein, the MCS the when user that mourns in silence activates according to it divides group, and for example, if odd number user in the above-mentioned example then corresponds to the user who mourns in silence, can there be the such state of transactivation in the user that mourns in silence.

The bitmap that then organizes 1 broadcasting is: 00 01 00 10 00 01 00 10 00 01 00 01 00 01, and the bitmap of group 2 broadcasting is: 00 11 00 01 00 01, its occupation condition is referring to Fig. 6.

By above-mentioned two kinds of realization mechanisms, realized transmission for the relatively poor user's data bag of those channel conditions, better realized the reasonable disposition of voip user's grouping resources assignment.

The embodiment of the invention is the explanation that example is carried out with the VoIP business only, and those skilled in the art can know that method that the embodiment of the invention provides also is applicable to the business of all fixed packet sizes.

In sum, the method that the embodiment of the invention provides is introduced the relation of concrete modulation coding mode MCS and resource RB in detail, thus the restriction that the user's corresponding informance by 2bit among the bitmap has determined to have reduced grouping with the RB number and the MCS of CU.In addition,, proposed two kinds of concrete realization mechanisms, better realized the reasonable disposition of voip user's grouping resources assignment for the situation of QPSK 1/8 and QPSK 1/4.

To sum up, the method that embodiment 1 provides has realized the number according to the Resource Block RB of the required shared resource of shared resource size, MCS correspondence, is user's assigned resources.Wherein, the base station is when the assignment shared resource, existence does not continue the situation of the identical shared resource of assignment and the situation that the VoIP group is continued the identical shared resource of assignment to the VoIP group, especially, VoIP group is being continued under the situation of the identical shared resource of assignment, also having the whether sufficient problem of identical common resource of this assignment, therefore, at foregoing description, the inventor has solved the problems referred to above by the following method, sees the hereinafter description of embodiment 2 for details:

Embodiment 2

The embodiment of the invention provides a kind of method that realizes the traffic packets resource assignation, solved the problem of transmission of the packet of VoIP group, particularly, solved scheduling problem under the inadequate resource condition by HARQ realization mechanism and relevant treatment mechanism, particular content is as follows:

One, the VoIP group is not continued the situation of the identical shared resource of assignment

When the VoIP group is not continued the identical shared resource of assignment, only by continuing the starting point of a shared resource of assignment, the order of CU resource realizes according to the indication of this starting point and bitmap in the group.

Under this situation, retransmission information HARQ needs dynamic dispatching to realize, promptly carries out the user of retransmission data packet may for needs, and the mode of employing dynamic dispatching realizes the transmission of its retransmission data packet may.It is that example describes that the following embodiment of the invention includes 10 user SS1～SS10 with a VoIP group, cycle 20ms with the new packet generation of VoIP during realization uniformly-spaced is divided into Interlace, present embodiment is an example to be divided into 2 Interlace (Interlace0 and Interlace1), wherein, in Interlace0, to include SS1～SS5, including SS6～SS10 in Interlace1 is that example is described in detail this situation, wherein, on running time-frequency resource, indicate the start position of a shared resource.

Referring to Fig. 7, suppose that the state of 10 user SS1～SS10 correspondences of this VoIP group is respectively: QPSK 1/2, and SS2 mourns in silence, and SS3 is 16QAM 3/4, SS4 mourns in silence, and SS5 is QPSK 3/4, and SS6 is 64QAM 3/4, and SS7 mourns in silence, SS8 is 16QAM3/4, and SS9 mourns in silence, and SS10 is QPSK 1/2

Because, the method that provides according to embodiment 1, wherein,

Therefore, then the bitmap in Interlace0 broadcasting is SS1～SS5:11 00 01 00 10, is SS6～SS10:01 00 01 00 11 at the bitmap of Interlace1 broadcasting.

Suppose, if in the transmission course of Interlace0, the SS1 error of transmission, then base station BS is SS1 dynamic dispatching HARQ retransmission packet in the position of Interlace1, at this moment, the StartPoint that SS1 is used for sending out the position of retransmission packet and defining this VoIP group is without any getting in touch, and the position of SS1 transmission retransmission packet is dynamic.

Two, the VoIP group is continued the situation of the zone of the identical size of assignment as shared resource

When the zone that VoIP group is continued the identical size of assignment during, the change of state of activation and the variation of MCS because the user mourns in silence as shared resource, be difficult to reasonably set the size of respective regions, there is the whether sufficient problem of the shared resource that is provided with:

If the 1 shared resource abundance that is provided with, the user takies shared resource in proper order, continue assignment identical shared resource at user HARQ retransmission packet this moment, and (so-called identical shared resource is meant, retransmission packet is identical with the position that Xin Bao takies the shared resource piece), and the residual resource that shared resource is used to transmit outside this HARQ retransmission packet can be dispatched dynamically to other users' uses.

If the 2 shared resource deficiencies that are provided with, the user who then is not dispatched to can the dynamic assignment resource, also can take the resource after this group in proper order, and this moment, there were following two kinds of situations in the re-transmission at user HARQ retransmission packet:

If this user HARQ retransmission packet is scheduled for shared resource at a last transmission period such as interlace0, then continue as the lasting identical shared resource of assignment of this user at current transmission period such as interlace1, promptly this user's HARQ bag still also takies shared resource;

If this user's HARQ retransmission packet is not scheduled for shared resource at a last transmission period such as interlace0, be this user's HARQ retransmission packet execution dynamic dispatching resource then at current transmission period such as interlace1.Further, also the mode that all users' HARQ retransmission packet is all adopted the dynamic dispatching resource can be set.

Be described with regard to the specific implementation of HARQ retransmission packet transmission under above-mentioned shared resource abundance and two kinds of situations of shared resource less than respectively referring to Fig. 8 and Fig. 9.

1, shared resource abundance: the shared resource size of supposing assignment is 8 running time-frequency resources (i.e. 8 RB), the VoIP group includes 10 user SS1～SS10, structure according to Interlace, wherein SS1～SS5 takies Interlace0, SS6～SS10 takies Interlace1, VoIP bag state and corresponding MCS is set is respectively:

SS1 is that QPSK 1/2, SS2 mourn in silence, SS3 is that 16QAM 3/4, SS4 mourn in silence, SS5 is that QPSK 3/4, SS6 are that 64QAM3/4, SS7 mourn in silence, SS8 is that 16QAM 3/4, SS9 mourn in silence, SS10 is QPSK 1/2, then the bitmap structure in Interlace0 broadcasting is: 00000000 (indicates in Interlace0, all resources are all available, no retransmission packet)+11 00 0,100 10 (bag state and the MCS states of respective user SS1～SS5 respectively).

Referring to Fig. 8, suppose if SS3 error of transmission in Interlace0, so in Interlace1, the bitmap structure of broadcasting is: 00010000 (the original corresponding new package location of indication SS3 is because error of transmission needs the transmitting HARQ retransmission packet)+01 00 0,100 11 (bag state and the MCS state of respective user SS6～SS10 respectively), whether first bitmap00010000 indication previous I nterlace0 of the situation of CU resource: current I nterlace1 exists user's (having taken the user of shared resource) error of transmission, if there is user's error of transmission in Interlace0, then in current Interlace1, take identical shared resource transmitting HARQ retransmission packet.User among the current I nterlace1 determines that from first bitmap which resource can take, and which resource can not take, thereby takies corresponding available resources in proper order according to second bitmap of current I nterlace1 again.If being arranged, vacant intact resource (as remaining two resources among Fig. 8) can give other users (comprising voip user and BE user) by the BS dynamic dispatching.For example, referring to Fig. 8, present embodiment is an example with SS3 error of transmission in Interlace0, and SS3 occupies the 4th RB among the Interlace0, then in Interlace1, retransmit this packet, promptly still utilize the 4th RB of Interlace1 to retransmit the packet that this is used for SS3 in identical position.

To sum up, discussed under the situation of shared resource abundance, bitmap by utilizing first broadcasting (is whether available bitmap of resource, if corresponding resource is used for continuing assignment transmission retransmission packet, then corresponding bit be set to 1 be designated as unavailable) and the bitmap of second broadcasting (current I nterlace state of user of living in (mourn in silence/activates, and corresponding M CS)) realize organizing in user's assignment transmit.

2, shared resource deficiency: remain with VoIP group and include 10 user SS1～SS10, structure according to Interlace, wherein SS1-SS5 takies Interlace0, it is example that SS6～SS10 takies Interlace1, suppose only to be provided with 4 resource RB as shared resource, the bitmap of its Interlace0 broadcasting is: 0000 (all resources are all available)+11 0,001 00 10.

Referring to Fig. 9, in Interlace0, the situation of CU resource: because the shared resource that is provided with is 4 RB, in Interlace0, because user SS1 has taken 3 RB, SS3 has taken 1 RB, and then obviously user SS5 can't share to this shared resource, at this moment, the resource that can give tacit consent to SS5 is immediately following after the shared resource of sharing at Interlace0, wherein, when under the prerequisite of Interlace0 resource abundance, but the temporary scheduling resource; Under the insufficient prerequisite of Interlace0 resource (for example the resource after the SS3 does not have any surplus resources by other CU and Interlace0), also the metadata cache of SS5 can be dispatched in follow-up frame.

Suppose at Interlace0 in the transmission course of Interlace1, SS3 and SS5 error of transmission, because SS3 has taken shared resource in Interlace0, then the HARQ retransmission packet of SS3 can continue the shared resource that assignment takies the Interlace1 same position, and because SS5 does not take shared resource in Interlace0, be the dynamic dispatching of carrying out, then the HARQ retransmission packet of this SS5 also needs dynamic dispatching in Interlace1.Because SS3 and SS5 error of transmission among the Interlace0, then the bitmap of Interlace1 broadcasting is: 0,001,+01 00 01 00 11, and in Interlace1, the situation of CU resource is referring to Fig. 9.Wherein, owing to only be provided with 4 shared resources, and preceding 2 have been accounted for two by SS6 and SS8, the shared resource of same position comes the transmitting HARQ retransmission packet among the Interlace1 because SS3 need take, so the 3rd HARQ retransmission packet by SS3 takies, so 3 resources that need at SS10 have two kinds of processing methods: a kind of method is that first SS10 takies a remaining shared resource, and two remaining SS10 follow in proper order need dynamic dispatching after SS3, as shown in Figure 9; Another kind method is 3 all dynamic dispatchings of resource that SS10 needs, and of shared resource is empty, can dispatch to other users, but not used by SS10.

In sum, the method that the embodiment of the invention provides, guaranteeing under the unrestricted situation of grouping, respectively at shared resource abundance and not enough situation, defined transmission mechanism separately, when shared resource is not enough, realized the transmission of HARQ retransmission packet, the treatment mechanism of the situation that the resource that needing for the user also to have realized disconnects by specific mechanism, reduce the expense of resource assignation, better realized the reasonable disposition of voip user's grouping resources assignment.

To sum up, the method that the embodiment of the invention 2 provides has been discussed under the unrestricted situation that guarantees grouping, respectively sufficient the and not enough situation at shared resource, defined transmission mechanism separately, when shared resource is not enough, realized the transmission of HARQ retransmission packet by specific mechanism.The inventor also finds when realization is of the present invention, because the position between the user is fixed relative to one another, cause the dispatching priority of the user after some position is leaned on itself to reduce, particularly under the prerequisite of inadequate resource, all need to carry out dynamic deferred scheduling at every turn, for the business higher (as VoIP business etc.) to delay requirement, because each service-user in the group is the differentiation of not carrying out priority, therefore, QoS (the Quality of Service that can cause organizing the user after interior position is leaned on owing to the reason of above-mentioned fixed-site, service quality) relatively poor, Given this, referring to following embodiment, the inventor has proposed a kind of method that realizes the traffic packets resource assignation, has realized guaranteeing to dispatch fairness in proper order by rotating customer location.See for details as follows:

Embodiment 3

The embodiment of the invention provides a kind of method that realizes the traffic packets resource assignation, guarantees scheduling fairness by rotating the sequence of positions of user in bitmap according to the cycle of specific negotiation, is example with the VoIP business still, and particular content is as follows:

Because each other fixed-site between the user in VoIP group, cause the user who is in back location to have lower dispatching priority, under the insufficient situation of shared resource, the user of back needs dynamic deferred scheduling, and VoIP itself is the business of delay sensitive, the voip user does not distinguish under the prerequisite of priority in group, such processing mode can cause the user communication quality that is positioned at the group back poor, communication quality can not get guaranteeing, at this defective and deficiency, the inventor is when realization is of the present invention, find order by user in the suitable group of VoIP by turns, user's scheduling fairness in guaranteeing to organize can be divided on one's body interior all users of group by the communication quality that the certain user is poor, is a kind of comparatively mode of fair scheduling.

For convenience of explanation, remain with the VoIP group and include 10 user SS1～SS10, structure according to Interlace, wherein SS1～SS5 takies Interlace0, it is example that SS6～SS10 takies Interlace1, suppose when current period 20ms, user among last cycle Interlace0 order is rotated to SS2, SS3, SS4, SS5, SS1 from SS1, SS2, SS3, SS4, SS5, the order of the user among the Interlace1 is rotated to SS7, SS8, SS9, SS10, SS6 from SS6, SS7, SS8, SS9, SS10.Bitmap in the Interlace0 of current period broadcasting is SS2, SS3, SS4, SS5, SS1:00000+00 01 00 10 11, correspondingly, the situation of each CU resource in the group: SS3 takies the 1st shared resource, SS5 takies the 2nd and the 3rd shared resource, owing to only be provided with 4 shared resources, and SS1 needs 3 resources, so 3 resources that this SS1 is needed have two kinds of processing methods:

1, a kind of method is the remaining shared resource of needed first resource occupation of SS1, and then two orders are followed and need to carry out dynamic dispatching after first SS1, as shown in figure 10;

2, another kind of method is 3 all dynamic dispatchings of resource that SS1 needs, and of shared resource is empty, can dispatch to other users, but not used by SS1.

For convenience of explanation, present embodiment is an example SS1 is carried out dynamic dispatching, be that SS3 occupies promptly at the 1st RB of Interlace1, the the 2nd and the 3rd RB is that SS5 occupies, and owing to the user among the Interlace1 also rotates, so its bitmap is SS7, SS8, SS9, SS10, SS6:00 01 00 11 01; Then the 4th RB in the shared resource is that SS8 takies.

Referring to Figure 10, suppose at current period Interlace0 in the transmission course of Interlace1, SS3 and SS5 error of transmission, then the bitmap in Interlace1 broadcasting is 1,110,+00 01 00 11 01 (SS7, SS8, SS9, SS10, SS6), owing to only be provided with 4 shared resources, the SS3 retransmission packet takies the 1st shared resource, and the SS5 retransmission packet takies the 2nd and the 3rd shared resource, and SS8 takies the 4th shared resource.1 resource that 3 resources that SS10 needs and SS6 need needs dynamic dispatching.

Can draw from Figure 10: the HARQ bag of original SS5 is to need scheduling, send and make the HARQ of SS5 can take shared resource by the mode of rotating now, guaranteed this user's time delay, its time delay is divided on one's body the user SS6, be that SS6 needs its new bag of dynamic dispatching, by rotating of above-mentioned user, guaranteed all users' scheduling fairness.

The embodiment of the invention provides is that the mode that changes SS2, SS3, SS4, SS5, SS1 into SS1, SS2, SS3, SS4, SS5 wheel is the explanation that example is carried out by turns; but do not limit concrete alternating mode and method; for example can also adopt SS1, SS2, SS3, SS4, SS5 wheel to change mode of SS5, SS4, SS3, SS2, SS1 or the like into; as long as the user in organizing has been carried out locational conversion successively, thereby the method by turns of purpose that reaches the scheduling fairness is all in the scope of embodiment of the invention protection.

In sum, the method that the embodiment of the invention provides, rotate by the position that user in the VoIP group is carried out between the user, under the situation of shared resource deficiency, the communication quality that the certain user is poor is divided on one's body interior all users of group, has solved the poor problem of user communication quality that is positioned at the group back, reaches all users' of equity dispatching purpose, having alleviated the sensitivity of VoIP to time delay, is a kind of scheduling of fairness for scheduling itself.

Embodiment 4

Referring to Figure 11, the embodiment of the invention provides a kind of device of realizing the traffic packets resource assignation, and device comprises:

Second acquisition module is used for the MCS according to the definite user of first acquisition module, calculates the subcarrier efficient SE of MCS correspondence;

Computing module is used for the size of the Resource Block RB of size, shared resource according to business data packet, and the subcarrier efficient SE of the MCS correspondence that calculates, and calculates the number of Resource Block RB of the required shared resource of MCS correspondence;

Distribution modulator, the number of Resource Block RB that is used for the required shared resource of the MCS correspondence that calculates according to shared resource size, computing module, utilize the required RB number and the MCS mode of corresponding bit indication user correspondence of the bitmap bitmap of this group, be embodied as user's assigned resources in the group.

Wherein, computing module specifically comprises:

First computing unit is used to calculate the product of the size of the subcarrier efficient SE of MCS correspondence and smallest allocation unit resource piece RB;

Second computing unit is used for the size of computing service packet and the quotient of the product that first computing unit obtains;

The 3rd computing unit is used for the quotient that obtains according to second computing unit, calculates the number of Resource Block RB of the required shared resource of MCS correspondence, and when quotient was integer value, then integer value was the number of Resource Block RB of the required shared resource of MCS correspondence; When quotient is non integer value, then non integer value is rounded and add the number of Resource Block RB that 1 back institute value is the required shared resource of MCS correspondence.

Further, device also comprises:

Select module, be used for number as the Resource Block RB of the required shared resource of a plurality of modulation coding mode MCS correspondences when identical, adopt the modulation coding mode MCS of low order to carry out modulating-coding the user.

Further, device also comprises:

Incorporate module into, be used for the user of bad channel conditions is adopted the modulation coding mode MCS of low order; According to the modulation coding mode MCS of low order, the user of bad channel conditions is incorporated into to reference modulation coding mode MCS, according to the number of the shared resource piece RB of reference modulation coding mode MCS correspondence, to user's assigned resources of bad channel conditions;

Grouping module is used for the channel condition according to the user, obtains user's modulation coding mode MCS; According to user's modulation coding mode with reference to modulation coding mode MCS, the user is divided into groups; According to different grouping bitmap bitmap separately, utilize the required RB number and the MCS mode of the interior user's correspondence of corresponding bit indication described grouping back group of bitmap bitmap separately, realize the user is carried out the assignment of resource.

(1) when business datum not being continued the identical shared resource of assignment, device also comprises:

Indicating module, the original position that is used for a shared resource of indication on running time-frequency resource, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then in current time interval interlace,, user's dynamic dispatching retransmits the HARQ retransmission packet automatically for mixing.

(2) when business datum is continued the identical shared resource of assignment, device also comprises:

First processing module, be used for when the identical shared resource that continues assignment is sufficient, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then in current time interval interlace the identical shared resource in user's assignment position;

Second processing module, be used for when the identical shared resource that continues assignment is inadequate, if when occurring the error of transmission of user's data bag in the previous time interval interlace, judge whether error data packets occurs is the packet that is scheduled for shared resource in the previous time interval, if then be the identical shared resource in user's assignment position in current time interval interlace; Otherwise, in current time interval interlace, retransmit the HARQ retransmission packet automatically for user's dynamic dispatching mixes.

Wherein, first processing module specifically comprises:

First processing unit is used for the bitmap bitmap indication by first broadcasting, knows to occur the error of transmission of user's data bag in the previous time interval interlace;

Second processing unit, be used for bitmap bitmap indication according to second broadcasting, according to the same position of the packet of error of transmission in previous time interval interlace, in current time interval interlace is the identical shared resource in user's assignment position of the appearance data packet transmission mistake known of first processing unit;

The 3rd processing unit is used for when second processing unit is the identical shared resource in user's assignment position in current time interval interlace after, and the residue shared resource dynamic dispatching in the current time interval interlace uses for other users.

Wherein, second processing module specifically comprises:

Judging unit, be used for bitmap bitmap indication according to first broadcasting, know whether occur occurring the error of transmission of user's data bag in the previous time interval interlace, and whether error data packets occurs be the packet that is scheduled for shared resource in the previous time interval;

Manages the unit everywhere, be used for when the result of judgment unit judges be the packet that is scheduled for shared resource in the previous time interval for the error of transmission of user's data bag occurring and error data packets occurs in the previous time interval interlace, then be the identical shared resource in user's assignment position in current time interval interlace;

The 5th processing unit, the result who is used for when judgment unit judges is not the packet that is scheduled for shared resource in the previous time interval for the error of transmission of user's data bag occurring and error data packets occurs in the previous time interval interlace, then mixes re-transmission HARQ retransmission packet automatically for user's dynamic dispatching in current time interval interlace.

Wherein, manages the unit everywhere also be used for the identical shared resource in current time interval interlace assignment position after, in the current time interval interlace in the not enough current time interval interlace of remaining shared resource during all the other CUs, then all the other user's data are carried out dynamic dispatching, or, remaining shared resource in all the other CU current time interval interlace carries out dynamic dispatching to the remaining data behind all the other CU residue shared resources.

It should be noted that especially second processing module also comprises when the identical shared resource that continues assignment is inadequate:

Toggle unit is used for cycle of specific negotiation, the sequence of positions of user in bitmap by turns, the cycle that produces as each packet according to business, user's sequence of positions by turns.

Wherein, toggle unit specifically comprises:

Divide subelement, be used for the cycle that each packet produces uniformly-spaced is divided into time interval interlace, with the user who has among each time interval interlace in one-period separately;

Subelement by turns is used for cycle of producing according to each packet, carries out independently the position by turns to dividing user among each time interval interlace in each cycle that subelement divides.

Further, the device that the embodiment of the invention provides also comprises: the type packet module, be used for business being divided into groups according to type of service, and make the user of same type of service be positioned at same group.

In sum, the device that the embodiment of the invention provides, according to the shared resource size, the number of the Resource Block RB of the required shared resource of MCS correspondence, be user's assigned resources, guarantee the unrestricted of grouping, and respectively at shared resource abundance and not enough situation, defined transmission mechanism separately, when shared resource is not enough, realize the transmission of HARQ retransmission packet by specific mechanism, the treatment mechanism of the situation that the resource that needing for the user also to have realized disconnects, reduce the expense of resource assignation, better realized the reasonable disposition of user grouping resource assignation.And further, also rotate by the position that user in organizing is carried out between the user, under the situation of shared resource deficiency, the communication quality that the certain user is poor is divided on one's body interior all users of group, solved the poor problem of user communication quality that is positioned at the group back, reaching all users' of equity dispatching purpose, alleviated professional sensitivity to time delay, is a kind of scheduling of fairness for scheduling itself.

Each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of method that realizes the traffic packets resource assignation is characterized in that, described method comprises:

According to described MCS, calculate the subcarrier efficient SE of described MCS correspondence;

According to the size of business data packet, the size of smallest allocation unit resource piece RB, and described subcarrier efficient SE, calculate the number of Resource Block RB of the required shared resource of described MCS correspondence;

According to the number of shared resource size, the RB that calculates, the corresponding bits bit of the bitmap bitmap in utilizing described group indicates the required RB number and the MCS of described user's correspondence.

2, the method for claim 1, it is characterized in that, the size of described size, smallest allocation unit resource piece RB according to business data packet, and the subcarrier efficient SE of the MCS correspondence that calculates, the step of the number of the Resource Block RB of the required shared resource of calculating MCS correspondence specifically comprises:

Calculate the product of the size of the described subcarrier efficient SE of described MCS correspondence and described smallest allocation unit resource piece RB;

Calculate the size of described business data packet and the quotient of described product;

According to described quotient, calculate the number of Resource Block RB of the required shared resource of described MCS correspondence.

3, method as claimed in claim 2 is characterized in that, and is described according to described quotient, calculates the step of number of Resource Block RB of the required shared resource of described MCS correspondence, specifically comprises:

When described quotient is integer value, the number of the Resource Block RB of the required shared resource that then described integer value is described MCS correspondence;

When described quotient is non integer value, then described non integer value is rounded and add the number of Resource Block RB that 1 back institute value is the required shared resource of described MCS correspondence.

4, the method for claim 1 is characterized in that, before described definite user's the modulation coding mode MCS step, also comprises:

When the number of the Resource Block RB of the required shared resource of a plurality of modulation coding mode MCS correspondences is identical, adopt the modulation coding mode MCS of low order to carry out modulating-coding.

5, the method for claim 1 is characterized in that, the step of described definite user's modulation coding mode MCS also comprises:

The user of channel quality states difference is adopted the modulation coding mode MCS of low order; According to the modulation coding mode MCS of described low order, the user of described bad channel conditions is incorporated into to reference modulation coding mode MCS;

Correspondingly, described number according to shared resource size, the RB that calculates, the corresponding bit of the bitmap bitmap in utilizing described group indicates the required RB number of described user's correspondence and the step of MCS, specifically comprises:

Number according to the Resource Block RB of described shared resource size, described required shared resource with reference to modulation coding mode MCS correspondence, the corresponding bit of bitmap bitmap in utilizing described group indicates the required RB number and the MCS of user's correspondence of described channel status difference, realizes the user's assigned resources to described channel status difference.

6, the method for claim 1 is characterized in that, after the step of described definite user's modulation coding mode MCS, also comprises::

According to described user's modulation coding mode with reference to modulation coding mode MCS, described user is divided into groups;

Number according to shared resource size, the RB that calculates, according to the different grouping bitmap bitmap separately after the grouping, the required RB number and the MCS mode of the described grouping of the corresponding bit indication back user's correspondence of the bitmap of bitmap separately in the utilization group after the grouping realize described user's assigned resources.

7, the method for claim 1, it is characterized in that, when business datum is not continued the identical shared resource of assignment, described number according to shared resource size, the RB that calculates, the corresponding bit of bitmap bitmap in utilizing described group indicates the required RB number of described user's correspondence and the step of MCS, comprising:

The original position of a shared resource of indication on running time-frequency resource, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then be that described user's dynamic dispatching mixes re-transmission HARQ retransmission packet automatically in current time interval interlace.

8, the method for claim 1, it is characterized in that, when business datum is continued the identical shared resource of assignment, described number according to shared resource size, the RR that calculates, the corresponding bit of bitmap bitmap in utilizing described group indicates the required RB number of described user's correspondence and the step of MCS, comprising:

When the identical shared resource of described lasting assignment is sufficient,, then in current time interval interlace the identical shared resource in described user's assignment position if when the error of transmission of user's data bag occurring in the previous time interval interlace;

When the identical shared resource of described lasting assignment is inadequate, if when occurring the error of transmission of user's data bag in the previous time interval interlace, judge whether the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval, if then be the identical shared resource in described user's assignment position in current time interval interlace; Otherwise, be that described user's dynamic dispatching mixes re-transmission HARQ retransmission packet automatically in current time interval interlace.

9, method as claimed in claim 8, it is characterized in that, when described identical shared resource when described lasting assignment is sufficient, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then be the step of the identical shared resource in described user's assignment position in current time interval interlace, specifically comprise:

By the bitmap bitmap indication of first broadcasting, know to occur the error of transmission of user's data bag in the previous time interval interlace;

According to the bitmap bitmap indication of second broadcasting,, in current time interval interlace the identical shared resource in described user's assignment position according to the same position of the packet of described error of transmission in described previous time interval interlace.

10, method as claimed in claim 8, it is characterized in that, when described identical shared resource when described lasting assignment is inadequate, if when occurring the error of transmission of user's data bag in the previous time interval interlace, judge whether the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval, if then be the identical shared resource in described user's assignment position in current time interval interlace; Otherwise, be that described user's dynamic dispatching mixes the step that retransmits the HARQ retransmission packet automatically in current time interval interlace, specifically comprise:

Bitmap bitmap indication according to first broadcasting, know whether occur the error of transmission of user's data bag in the previous time interval interlace, and whether the described packet that error of transmission occurs is the packet that is scheduled for shared resource in the described previous time interval;

If occur the error of transmission of user's data bag in the previous time interval interlace and the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval, it then in current time interval interlace the identical shared resource in described user's assignment position, in described current time interval interlace behind the identical shared resource in assignment position, when in the not enough current time interval interlace of remaining shared resource in the described current time interval interlace during all the other CUs, then described all the other user's data are carried out dynamic dispatching, or, remaining shared resource in the described current time interval interlace of described all the other CUs carries out dynamic dispatching to the remaining data behind the described residue shared resource of all the other CUs;

If occur the error of transmission of user's data bag in the previous time interval interlace and the described error data packets that occurs is not the packet that is scheduled for shared resource in the described previous time interval, then be that described user's dynamic dispatching mixes and retransmits the HARQ retransmission packet automatically in current time interval interlace.

11, method as claimed in claim 8 is characterized in that, when the identical shared resource of described lasting assignment was inadequate, described was the step of the identical shared resource in described user's assignment position in current time interval interlace, also comprises:

Cycle wheel is used the sequence of positions of family in bitmap instead.

12, method as claimed in claim 11 is characterized in that, in the described cycle according to specific negotiation, the step of the sequence of positions of user in bitmap by turns specifically comprises:

The cycle that described each packet is produced uniformly-spaced is divided into time interval interlace, with the user who has among each time interval interlace in one-period separately;

According to the cycle that each packet produces, the user among each time interval interlace carries out independently the position by turns.

13, the method for claim 1 is characterized in that, described channel quality status information according to the user in the same type of service group is determined also to comprise before user's the step of modulation coding mode MCS:

According to type of service, business is divided into groups, make the user of same type of service be positioned at same group.

14, a kind of device of realizing the traffic packets resource assignation is characterized in that, described device comprises:

Distribution modulator, the number of Resource Block RB that is used for the required shared resource of the MCS correspondence that calculates according to shared resource size, described computing module, the corresponding bits bit of bitmap bitmap in utilizing described group indicates the required RB number and the MCS mode of described user's correspondence, is embodied as described user's assigned resources in the group.

15, device as claimed in claim 14 is characterized in that, described computing module specifically comprises:

First computing unit is used to calculate the product of the size of the subcarrier efficient SE of MCS correspondence and described smallest allocation unit resource piece RB;

Second computing unit is used to calculate the size of described business data packet and the quotient of the product that described first computing unit obtains;

The 3rd computing unit, be used for the quotient that obtains according to described second computing unit, calculate the number of Resource Block RB of the required shared resource of described MCS correspondence, when described quotient is integer value, the number of the Resource Block RB of the required shared resource that then described integer value is described MCS correspondence; When described quotient is non integer value, then described non integer value is rounded and add the number of Resource Block RB that 1 back institute value is the required shared resource of described MCS correspondence.

16, device as claimed in claim 14 is characterized in that, described device also comprises:

17, device as claimed in claim 14 is characterized in that, described device also comprises:

Incorporate module into, be used for the user of bad channel conditions is adopted the modulation coding mode MCS of low order; Modulation coding mode MCS according to described low order, the user of described bad channel conditions is incorporated into to reference modulation coding mode MCS, according to the number of described shared resource piece RB with reference to modulation coding mode MCS correspondence, to user's assigned resources of described bad channel conditions;

Grouping module is used for the channel condition according to the user, obtains user's modulation coding mode MCS; According to described user's modulation coding mode with reference to modulation coding mode MCS, described user is divided into groups; According to different grouping bitmap bitmap separately, utilize the required RB number and the MCS mode of the interior user's correspondence of corresponding bit indication described grouping back group of bitmap bitmap separately, realize described user is carried out the assignment of resource.

18, device as claimed in claim 14 is characterized in that, when business datum not being continued the identical shared resource of assignment, described device also comprises:

Indicating module, the original position that is used for a shared resource of indication on running time-frequency resource, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then be that described user's dynamic dispatching mixes re-transmission HARQ retransmission packet automatically in current time interval interlace.

19, device as claimed in claim 14 is characterized in that, when business datum is continued the identical shared resource of assignment, described device also comprises:

First processing module, be used for identical shared resource when described lasting assignment when sufficient, if when occurring the error of transmission of user's data bag in the previous time interval interlace, then in current time interval interlace the identical shared resource in described user's assignment position;

Second processing module, be used for when the identical shared resource of described lasting assignment is inadequate, if when occurring the error of transmission of user's data bag in the previous time interval interlace, judge whether the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval, if then be the identical shared resource in described user's assignment position in current time interval interlace; Otherwise, be that described user's dynamic dispatching mixes re-transmission HARQ retransmission packet automatically in current time interval interlace.

20, device as claimed in claim 19 is characterized in that, described first processing module specifically comprises:

Second processing unit, be used for bitmap bitmap indication according to second broadcasting, according to the same position of the packet of described error of transmission in described previous time interval interlace, the identical shared resource in user's assignment position of the appearance data packet transmission mistake of knowing for described first processing unit in current time interval interlace;

The 3rd processing unit, be used for when described second processing unit is the identical shared resource in described user's assignment position in described current time interval interlace after, the residue shared resource dynamic dispatching in the described current time interval interlace uses for other users.

21, device as claimed in claim 19 is characterized in that, described second processing module specifically comprises:

Judging unit, be used for bitmap bitmap indication according to first broadcasting, know whether occur occurring the error of transmission of user's data bag in the previous time interval interlace, and whether the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval;

Manages the unit everywhere, be used for when the result of described judgment unit judges for the error of transmission of user's data bag occurring in the previous time interval interlace and the described error data packets that occurs is the packet that is scheduled for shared resource in the described previous time interval, then be the identical shared resource in described user's assignment position in current time interval interlace;

The 5th processing unit, be used for when the result of described judgment unit judges for the error of transmission of user's data bag occurring in the previous time interval interlace and the described error data packets that occurs is not the packet that is scheduled for shared resource in the described previous time interval, then be that described user's dynamic dispatching mixes re-transmission HARQ retransmission packet automatically in current time interval interlace.

22, device as claimed in claim 20, it is characterized in that, described manages the unit everywhere also be used for the identical shared resource in described current time interval interlace assignment position after, when in the not enough current time interval interlace of remaining shared resource in the described current time interval interlace during all the other CUs, then described all the other user's data are carried out dynamic dispatching, or, remaining shared resource in the described current time interval interlace of described all the other CUs carries out dynamic dispatching to the remaining data behind the described residue shared resource of all the other CUs.

23, device as claimed in claim 19 is characterized in that, when the identical shared resource of described lasting assignment was inadequate, described second processing module also comprised:

Toggle unit is used for the cycle according to specific negotiation, by turns the sequence of positions of user in bitmap.

24, device as claimed in claim 19 is characterized in that, described toggle unit specifically comprises:

Divide subelement, be used for the cycle that described each packet produces uniformly-spaced is divided into time interval interlace, with the user who has among each time interval interlace in one-period separately;

Subelement by turns is used for cycle of producing according to each packet, and the user among each time interval interlace in each cycle that described division subelement is divided carries out independently the position by turns.

25, device as claimed in claim 14 is characterized in that, described device also comprises:

The type packet module is used for according to type of service business being divided into groups, and makes the user of same type of service be positioned at same group.