CN102802209A

CN102802209A - Method and equipment for transmitting air interface data

Info

Publication number: CN102802209A
Application number: CN2012103158766A
Authority: CN
Inventors: 徐颖; 张静茹
Original assignee: Comba Telecom Systems China Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2012-08-30
Filing date: 2012-08-30
Publication date: 2012-11-28
Anticipated expiration: 2032-08-30
Also published as: CN102802209B

Abstract

The invention discloses a method and equipment for transmitting air interface data. The method comprises the following steps: an RRC (Radio Resource Control) layer determines and sends a submit period and a submit number to an RLC (Radio Link Control) layer and an MAC (Media Access Control) layer; the RLC layer stores protocol data units PDU obtained according to a service data unit SDU into a first buffer region; in each submit period, the submit number of PDUs in the first buffer region are sent to the MAC layer by a logic channel; in each submit period, the MAC layer receives the submit number of PDUs sent by the RLC layer; the received PDUs are stored in a second buffer region; and at each transmission time interval TTI, the PDUs are taken out of the second buffer region and are sent by a transmission channel. According to the invention, the PDUs are periodically sent to the MAC layer by the PLC layer, so that the primitive interaction between the MAC layer and the RLC layer is greatly reduced and the resource waste problem caused by massive primitive interaction is released.

Description

A kind of air interface data transmission method and equipment

Technical field

The present invention relates to communication technical field, relate in particular to a kind of air interface data transmission method and equipment.

Background technology

In cellular mobile communication networks, the interface between user equipment (UE) and the access network UTRAN is called air interface, and in TD-SCDMA and WCDMA network, air interface is called as the Uu interface.

Air interface protocols mainly is divided into three layers: physical layer, data link layer and network layer; Wherein physical layer is positioned at the bottom, and data link layer is divided into MAC (Media Access Control, medium access control) layer and RLC (Radio Link Control; Radio Link control) layer; Network layer is positioned at the superiors, mainly is meant RRC (Radio Resource Control, Radio Resource control) layer.According to air interface protocol; Physical layer provides corresponding service through transmission channel for the MAC layer; The MAC layer carries the business of rlc layer through logic channel; All have control interface between each entity of rrc layer and MAC layer and rlc layer, rrc layer through these control interfaces to the configuration of MAC layer and rlc layer with transmit some control commands.

The MAC layer is positioned on the physical layer, is mainly used between the logic channel that service is provided at transmission channel that physical layer provides with to rlc layer to carry out channel Mapping (hereinafter to be referred as channel Mapping); The MAC layer comprises following several kinds of entities:

The MAC-b entity is responsible for handling broadcast channel (BCH);

The MAC-c/sh/m entity is responsible for handling PCH (PCH), forward access channel (FACH), RACH (RACH), downlink sharied signal channel (DSCH), uplink shared channel (USCH) etc.;

The MAC-d entity is responsible for handling dedicated transmission channel (DCH);

The MAC-hs entity is responsible for handling high speed descending sharing channel (HS-DSCH).

Rlc layer is positioned on the MAC layer; Be mainly used in to user and control data provide segmentation and (be about to SDU (Service Data Unit from network side; Service Data Unit) section of presorting obtains a plurality of PDU (Protocol Data Unit, protocol Data Unit)) and retransmit professional.In the existing 3GPP agreement; Rlc layer is provided with retransmission buffer; The effect of this retransmission buffer mainly contains following two aspects: on the one hand, when rlc layer was AM (affirmation mode) in type of service, each PDU existed the possibility of re-transmission (in that peer-entities is unconfirmed when receiving this PDU; Rlc layer need resend this PDU); Also do not obtain the PDU copy that peer-entities is confirmed so in rlc layer, be necessary to preserve, the retransmission buffer of rlc layer just is used to preserve the PDU copy, retransmits professional needs to satisfy; On the other hand; The SDU that rlc layer is handled has life cycle, and when the life cycle of SDU finished, the PDU and this SDU itself that are produced by this SDU segmentation should be eliminated; No longer send via air interface; Otherwise can cause the waste of air interface resource, therefore, directly from retransmission buffer, remove this type PDU copy and get final product.

In the prior art, MAC layer (mainly referring to MAC-c/sh/m entity, MAC-d entity and MAC-hs entity) carries out channel Mapping between logic channel and transmission channel process is following:

Rrc layer is set up when professional, sends primitive through control interface and gives rlc layer and MAC layer, is the mapping relations of rlc layer and MAC layer configuration logic channel and transmission channel (be generally a plurality of logic channels be mapped to a transmission channel get on);

Rlc layer receives after the SDU from network side; The SDU section of presorting is obtained a plurality of PDU, and the PDU that segmentation is obtained stores in the retransmission buffer, sends PDU through logic channel then; Wherein, Rrc layer configures corresponding logic channel for SDU, and after RLC obtained PDU with the SDU section of presorting, these PDU can send through the logic channel corresponding with this SDU;

The MAC layer is confirmed a plurality of logic channels of corresponding same transmission channel according to the logic channel of rrc layer configuration and the mapping relations of transmission channel; The MAC layer through with rlc layer between carry out the PDU buffer memory PDU quantity of this a plurality of logic channels transmission (promptly through) that primitives interoperation obtains corresponding these a plurality of logic channels in the rlc layer retransmission buffer; Current according to this transmission channel then transmittability; Determine the PDU quantity Num that this transmission channel can send at this TTI (Transmission Time Interval, Transmission Time Interval); The MAC layer obtains the PDU that quantity is Num through these a plurality of logic channels from the retransmission buffer of rlc layer, then these PDU are mapped to the transmission of getting on of this transmission channel.

Visible by said process; The MAC layer all need carry out could accomplishing the channel Mapping process alternately at every turn through primitive and rlc layer, works as heavy traffic, when data amount transmitted is big; Between MAC layer and rlc layer, just have a large amount of primitives interoperations, cause the significant wastage of the communication resource.

For example; Fig. 1 and Fig. 2 are respectively the entity sketch map of MAC-d entity in UE side and UTRAN side; Can find out from Fig. 1 and Fig. 2, the MAC-d entity rlc layer in the PDU data map of sending on logic channel DCCH or the DTCH on transmission channel DCH or HS-DSCH or FACH.Whenever the MAC-d entity is carried out the channel Mapping task constantly; All need be through carrying out primitives interoperation with rlc layer; Obtain the corresponding PDU buffer memory of each logic channel; Calculate the PDU quantity that transmission channel can send at this TTI according to the current transmittability of this transmission channel then, obtain the PDU of respective numbers through logic channel from the retransmission buffer of rlc layer again, last MAC-d entity is mapped to DCH or HS-DSCH or FACH with these PDU and sends.When heavy traffic, between MAC-d entity and rlc layer, just have a large amount of primitives interoperations, cause the wasting of resources.

Summary of the invention

The present invention provides a kind of air interface data transmission method and equipment, in order to solve in the prior art MAC layer when carrying out the channel Mapping task and the wasting of resources problem that a large amount of primitives interoperation caused between the rlc layer.

The present invention includes:

A kind of air interface data transmission method comprises:

The radio resource control RRC layer is confirmed the submission cycle and is submitted quantity to; The information that will comprise said submission cycle and submission quantity sends to Radio Link control rlc layer and media access control MAC layer respectively;

Rlc layer receives the information that comprises submission cycle and submission quantity that rrc layer sends; To deposit in first buffering area according to the protocol Data Unit PDU that Service Data Unit SDU obtains; In each submission cycle, with submitting to a quantity PDU to send to the MAC layer described in first buffering area through logic channel;

The MAC layer receives the information that comprises submission cycle and submission quantity that rrc layer sends; In each submission cycle, receive the said submission quantity PDU that rlc layer sends; The PDU of said reception is deposited in second buffering area; At each Transmission Time Interval TTI, from said second buffering area, take out PDU and send through transmission channel.

A kind of air interface data transmission equipment comprises: radio resource control RRC module, Radio Link control RLC module and media access control MAC module; Wherein,

The RRC module is used for confirming the submission cycle and submits quantity to; The information that will comprise said submission cycle and submission quantity sends to RLC module and MAC module respectively;

The RLC module is used to receive the information that comprises submission cycle and submission quantity that the RRC module is sent; To deposit in first buffering area according to the protocol Data Unit PDU that Service Data Unit SDU obtains; In each submission cycle, with submitting to a quantity PDU to send to the MAC module described in first buffering area through logic channel;

The MAC module is used to receive the information that comprises submission cycle and submission quantity that the RRC module is sent; In each submission cycle, receive the said submission quantity PDU that the RLC module is sent; The PDU of said reception is deposited in second buffering area; At each Transmission Time Interval TTI, from said second buffering area, take out PDU and send through transmission channel.

The present invention is through setting up corresponding buffering area at rlc layer and MAC layer; In each submission cycle; Send a submission quantity PDU by rlc layer through logic channel and give the MAC layer, by the MAC layer PDU is mapped on the transmission channel and sends, the PDU that this method makes rlc layer periodically send some gives the MAC layer; And all carry out primitives interoperation needn't carry out the channel Mapping task time with the MAC layer at every turn, solved between MAC layer and the rlc layer and carried out the wasting of resources problem that a large amount of primitives interoperation caused.

Description of drawings

Fig. 1 be in the prior art MAC-d entity at the channel Mapping sketch map of UE side;

Fig. 2 be in the prior art MAC-d entity at the channel Mapping sketch map of UTRAN side;

Fig. 3 is a kind of air interface data transmission method flow chart provided by the invention;

Fig. 4 is a kind of air interface network diagram provided by the invention;

A kind of air interface data transmission method sketch map that Fig. 5 provides for the embodiment of the invention one;

Fig. 6 is a kind of air interface data transmission equipment structural representation provided by the invention.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, the embodiment of air interface data transmission method provided by the invention and equipment is described in further detail.

The present invention provides a kind of air interface data transmission method, and is as shown in Figure 3, and this method comprises:

Step 31, radio resource control RRC layer are confirmed the submission cycle and are submitted quantity to; The information that will comprise said submission cycle and submission quantity sends to Radio Link control rlc layer and media access control MAC layer respectively;

Concrete, rrc layer is promptly confirmed the corresponding submission cycle and is submitted quantity to, and pass through the mode that control interface sends primitive when foundation is professional, said definite submission cycle and submission quantity are sent to rlc layer and MAC layer;

Step 32, rlc layer receive the information that comprises submission cycle and submission quantity that rrc layer sends; To deposit in first buffering area according to the protocol Data Unit PDU that Service Data Unit SDU obtains; In each submission cycle, with submitting to a quantity PDU to send to the MAC layer described in first buffering area through logic channel;

Concrete, the present invention is provided with first buffering area in rlc layer, and this first buffering area is used to deposit the PDU that rlc layer obtains the SDU section of presorting; Rlc layer through and rrc layer between control interface receive and comprise submission cycle and the primitive of submitting quantity information to; In each submission cycle, rlc layer all takes out quantity and equals the PDU of said submission quantity and send to the MAC layer through logic channel from first buffering area; In this way, rlc layer can periodically send the PDU of some to the MAC layer, and needn't wait for and the MAC layer between carry out primitives interoperation, saved the ample resources that primitive signal post takies;

Step 33, MAC layer receive the information that comprises submission cycle and submission quantity that rrc layer sends; In each submission cycle, receive the said submission quantity PDU that rlc layer sends; The PDU of said reception is deposited in second buffering area; At each Transmission Time Interval TTI, from said second buffering area, take out PDU and send through transmission channel;

Concrete, the present invention is provided with second buffering area in the MAC layer, and this second buffering area is used to deposit the PDU that rlc layer sent in each submission cycle; The MAC layer through and rrc layer between control interface receive and comprise submission cycle and the primitive of submitting quantity information to; In each submission cycle, the quantity that the MAC layer all sends through logic channel reception rlc layer equals the PDU of said submission quantity, and deposits the PDU that receives in second buffering area; In each TTI, the MAC layer takes out some from said second buffering area PDU is mapped to transmission channel and sends; In this way, the MAC layer can periodically receive the PDU of the some of rlc layer transmission, and needn't when carrying out channel Mapping, all carry out primitives interoperation with rlc layer, has saved the ample resources that primitive signal post takies.

The inventive method is through all setting up corresponding buffering area at rlc layer and MAC layer; In each submission cycle; Send a submission quantity PDU by rlc layer through logic channel and give the MAC layer, by the MAC layer PDU is mapped on the transmission channel and sends, the PDU that this method makes rlc layer periodically send some gives the MAC layer; And all carry out primitives interoperation needn't carry out the channel Mapping task time with the MAC layer at every turn, solved between MAC layer and the rlc layer and carried out the wasting of resources problem that a large amount of primitives interoperation caused.

Preferably, said rrc layer is confirmed the submission cycle and is submitted quantity to, specifically comprises:

Based on the TTI of each transmission channel, confirm to submit to the cycle one to one with each transmission channel;

Based on each transmission channel sends protocol Data Unit PDU in self TTI ability, confirm to submit quantity one to one to each transmission channel.

Concrete; Based on rlc layer in the prior art is according to the channel Mapping relation (being the mapping relations of logic channel to transmission channel) that rrc layer has configured PDU to be sent to the MAC layer; And; The MAC layer also is the channel Mapping relation that has configured according to rrc layer, the PDU that sends on the logic channel is mapped on the corresponding transmission channel send;

Carry out the process of channel Mapping in order to control the MAC layer preferably; Rrc layer is confirmed to submit to the cycle one to one with each transmission channel among the present invention; Because all corresponding one or more logic channels of each transmission channel, therefore, the submission cycle that is provided with to each transmission channel is also corresponding with corresponding each logic channel of this transmission channel; In like manner; Rrc layer is confirmed to submit quantity one to one to each transmission channel among the present invention, because all corresponding one or more logic channels of each transmission channel, therefore; All logic channels that the submission quantity that is provided with to each transmission channel and this transmission channel are corresponding are corresponding, and promptly the PDU sum in a submission cycle, submitted to of all logic channels of a corresponding transmission channel equals to be directed against the submission quantity of this transmission channel setting.

In the prior art, it is following that the MAC layer is mapped to the process of sending on the transmission channel with PDU: in each corresponding TTI of transmission channel, according to the PDU transmitting capacity of current this transmission channel, confirm that the PDU of some sends; And the TTI that each transmission channel is corresponding is separate, can be the same or different, and each transmission channel also is uncertain in different TTI sends PDU in the cycle ability, can change along with the residing various states of transmission channel; Carry out the process of channel Mapping in order to control the MAC layer preferably; Rrc layer is confirmed the corresponding submission cycle according to the TTI of each transmission channel among the present invention; And rrc layer is confirmed the corresponding quantity of submitting to according to each transmission channel sends PDU in self TTI ability among the present invention.

Shown in Figure 4 for transmission channel among the present invention and logic channel, submission cycle, submit the corresponding relation of quantity to, as shown in Figure 4, have 5 logic channels, numbering is respectively L1, L2, L3, L4 and L5, two transmission channels are numbered and are respectively C1 and C2; Wherein, the channel Mapping relation of RRC configuration is: transmission channel C1 counterlogic channel L1, L2 and L3, transmission channel C2 counterlogic channel L4 and L5; The submission cycle of RRC configuration is following with submission quantity: transmission channel C1 is corresponding to be submitted cycle T 1 to and submits quantity pduNum1 to, and transmission channel C2 correspondence is submitted cycle T 2 to and submitted quantity pduNum2 to.

Preferably, said rrc layer is confirmed to submit to the cycle one to one with each transmission channel according to the TTI of each transmission channel, specifically comprises: to each transmission channel, confirm submission cycle N times for this transmission channel self TTI, wherein, N is a positive integer; Said rrc layer sends the ability of PDU in self TTI according to each transmission channel; Confirm to submit quantity one to one to each transmission channel; Specifically comprise: to each transmission channel, to confirm to submit to quantity be this transmission channel sends N times of PDU maximum quantity in self TTI.

Concrete, to a transmission channel, the submission cycle is made as T, will submit quantity to be made as pduNum, the quantity of this transmission channel being sent PDU in self TTI is made as tbNum, and then submission cycle and the submission quantity confirmed of rrc layer has following formula:

T=N * TTI, pduNum=N * MAX (tbNum), N=1 wherein, 2,3

The MAC layer can confirm that this transmission channel sends the maximum quantity MAX (tbNum) of PDU in self TTI according to the corresponding TFS (Transport Format Set, TFS Transport Format Set) of transmission channel among the present invention.

Consider that SDU has the characteristics of life cycle, according to prior art, when the life cycle of SDU finishes; The PDU that this SDU is corresponding just should be eliminated, and no longer sends via air interface, to avoid causing the waste of air interface resource; Should the N value be provided with too much among the present invention; Submit to excessive cycle excessive otherwise can cause, promptly cause the too much PDU of rlc layer quantity forwarded in a long time to give the MAC layer, when the life cycle of SDU finishes with the value of submitting quantity to; The PDU that is not processed in second buffering area still remains a lot, causes the MAC layer must spend great amount of time and removes to delete PDU out of date; Preferable, it is 1 or 2 that the N value can be set.

Preferably, said first buffering area is corresponding one by one with each logic channel; Then

Said rlc layer will deposit in first buffering area according to the PDU that SDU obtains; In each submission cycle,, specifically comprise submitting to a quantity PDU to send to the MAC layer described in first buffering area through logic channel:

Confirm the logic channel that SDU is corresponding, will deposit in the first corresponding buffering area of this logic channel according to the PDU that said SDU obtains;

Confirm the corresponding logic channel group of each transmission channel, submission cycle and submit quantity to, said logic channel group comprises each logic channel that this transmission channel is corresponding;

To each transmission channel,, choose a said submission quantity PDU in first buffering area that each logic channel is corresponding from said logic channel group, and send to the MAC layer through each logic channel in the said logic channel group in each submission cycle.

Concrete, the present invention first buffering area of rlc layer setting be with each logic channel one to one; After rlc layer receives SDU, can confirm the logic channel that this SDU is corresponding to the configuration of this SDU, and will deposit in the first corresponding buffering area of this logic channel a plurality of PDU that this SDU section of presorting obtains according to rrc layer;

The channel mapping relations that rlc layer has disposed based on rrc layer; Can determine the one or more logic channels corresponding with each transmission channel; Set with these one or more logic channels among the present invention is called the logic channel group, and promptly rlc layer is determined the logic channel group corresponding with each transmission channel;

To each transmission channel; Rlc layer is in each submission cycle of this transmission channel; Choose PDU in first buffering area that each logic channel is corresponding from logic channel group (the logic channel group that this transmission channel is corresponding) of capital and send to the MAC layer; Wherein, the said PDU sum of choosing equals the corresponding submission quantity of this transmission channel.

In the air interface network as shown in Figure 4, the logic channel group that transmission channel C1 is corresponding comprises logic channel L1, L2 and L3, and the logic channel group that transmission channel C2 is corresponding comprises logic channel L4 and L5; Each logic channel all has the first corresponding buffering area; Each SDU that rlc layer receives is corresponding to a logic channel, and a plurality of PDU that each SDU section of presorting is obtained just are stored in the first corresponding buffering area of this logic channel; To transmission channel C1, rlc layer is submitted cycle T 1 at each, from each corresponding respectively first buffering area of logic channel L1, L2 and L3, chooses the PDU that sum equals to submit to quantity pduNum1, sends to the MAC layer through logic channel L1, L2 and L3; To transmission channel C2, rlc layer is submitted cycle T 2 at each, from logic channel L4 and L5 corresponding respectively respectively choose the PDU that sum equals to submit to quantity pduNum2 first buffering area, send to the MAC layer through logic channel L4 and L5.

Preferably, choose a said submission quantity PDU in said rlc layer first buffering area that each logic channel is corresponding from said logic channel group, and send to the MAC layer, specifically comprise through each logic channel in the said logic channel group:

According to the priority orders of each logic channel in the said logic channel group, from the first corresponding buffering area of each logic channel, choose PDU successively, the said PDU sum of choosing equals said submission quantity;

The logic channel of the said PDU that chooses through correspondence sent to the MAC layer.

Concrete; In the actual conditions, the submission quantity that the PDU sum in first buffering area that each logic channel is corresponding in the logic channel group is corresponding with transmission channel is often unequal, to this situation; Rlc layer is through each logic channel in the said logic channel group of traversal among the present invention; According to the priority orders of each logic channel, from the first corresponding buffering area of each logic channel, choose PDU successively, the PDU sum of choosing equals the corresponding submission quantity of transmission channel; And rlc layer sends to the MAC layer with the logic channel of the PDU that chooses through correspondence.

For example, the submission quantity pduNum1=10 that transmission channel C1 shown in Figure 4 is corresponding, the priority orders of logic channel L1, L2 and L3 is: L1 is higher than L2, and L2 is higher than L3; In a certain submission cycle T 1; The quantity of PDU is respectively 7,5 and 3 in first buffering area of logic channel L1, L2 and L3 correspondence; PDU adds up to 15, and then rlc layer is at first got 7 PDU and sent to the MAC layer through logic channel L1 from the first corresponding buffering area of logic channel L1 according to priority orders; From the first corresponding buffering area of logic channel L2, get 3 PDU and send to the MAC layer again through logic channel L2; And owing to reached the submission quantity of this transmission channel, so no longer from the first corresponding buffering area of logic channel L3, get PDU, remaining PDU is left to next TTI continuation processing among logic channel L2 and the L3.

Preferably, said second buffering area is corresponding one by one with each transmission channel; Then

Said MAC layer receives the said submission quantity PDU that rlc layer sends in each submission cycle; The PDU of said reception is deposited in second buffering area; At each TTI, from said second buffering area, take out PDU and send through transmission channel, specifically comprise:

To each transmission channel,, receive a said submission quantity PDU through each logic channel in the said logic channel group in each submission cycle; A said submission quantity PDU who receives is deposited in the second corresponding buffering area of this transmission channel; In each TTI of this transmission channel, calculate this transmission channel in the PDU of this TTI quantity forwarded, from the second corresponding buffering area of this transmission channel, take out a said quantity forwarded PDU, send through this transmission channel.

Concrete, the present invention second buffering area of MAC layer setting be with each transmission channel one to one; To each transmission channel; The MAC layer is in each corresponding submission cycle of this transmission channel; Each logic channel through in the corresponding logic channel group of this transmission channel receives the submission quantity PDU that rlc layer sends, and a submission quantity PDU of said reception is deposited in the second corresponding buffering area of this transmission channel; The MAC layer is confirmed the PDU quantity that this TTI can send according to the transmittability of current this transmission channel in each TTI of this transmission channel, the PDU that from the second corresponding buffering area of this transmission channel, takes out this quantity then sends; Wherein, The MAC layer can be according to packet scheduling and TFC (Transport Format Combination among the present invention; Transformat combination) mode of selection decision confirms that transmission channel sends the ability of PDU (i.e. the quantity of transmission PDU in each TTI) in each TTI.

Preferably, corresponding all logic channels of said first buffering area; Then

To deposit in based on the PDU that SDU obtains in first buffering area, and confirm the corresponding relation of PDU in each logic channel and first buffering area;

To each transmission channel,, from first buffering area with in the said logic channel group, choose a said submission quantity PDU among the corresponding PDU of each logic channel, and send to the MAC layer through each logic channel in the said logic channel group in each submission cycle.

Preferably, said rlc layer is chosen a said submission quantity PDU among the corresponding PDU of each logic channel from first buffering area with in the said logic channel group, and sends to the MAC layer through each logic channel in the said logic channel group, specifically comprises:

According to the priority orders of each logic channel in the said logic channel group, choose the corresponding PDU of each logic channel in first buffering area successively, the said PDU sum of choosing equals said submission quantity;

Preferably, corresponding all transmission channels of said second buffering area; Then

To each transmission channel,, receive a said submission quantity PDU through each logic channel in the said logic channel group in each submission cycle; A said submission quantity PDU who receives is deposited in second buffering area; Confirm the corresponding relation of each PDU and transmission channel in second buffering area; In each TTI of this transmission channel, calculate this transmission channel in the PDU of this TTI quantity forwarded, from second buffering area, take out a said quantity forwarded PDU among the PDU corresponding with this transmission channel, send through this transmission channel.

Concrete; The present invention also can be provided with one first buffering area of corresponding all logic channels in rlc layer, in this case, can preserve the PDU corresponding with each logic channel in first buffering area; When the periodic PDU of transmission gives the MAC layer; Rlc layer can be distinguished PDU corresponding with each logic channel in first buffering area through PDU is discerned, and can reach equally to each transmission channel; In each submission cycle, choose among the PDU that each logic channel is corresponding from the logic channel group and submit to a quantity PDU to send to the purpose of MAC layer; Similarly, the present invention also can be provided with one second buffering area of corresponding all transmission channels in the MAC layer, in this case; Can preserve the PDU corresponding with each transmission channel in second buffering area, same, the MAC layer can be through discerning PDU; Distinguish PDU corresponding in second buffering area with each transmission channel; And reach to each transmission channel, in each TTI, the purpose that the PDU of taking-up some sends from second buffering area.

Preferably, the inventive method also comprises:

Rrc layer is confirmed and each transmission channel alarm threshold one to one; The information that will comprise said alarm threshold sends to the MAC layer;

The MAC layer receives the information that comprises alarm threshold that rrc layer sends; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given rlc layer during greater than said alarm threshold, and said alarm indication comprises this transmitting channel information;

When rlc layer receives the alarm indication of MAC layer transmission, confirm corresponding transmission channel according to this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU in next corresponding submission cycle at this transmission channel and give the MAC layer.

Concrete; Because the complexity of wireless channel; The situation of PDU inevitably can appear in second buffering area of MAC layer overstocking; Can carry out the channel Mapping process smoothly in order to control the MAC layer, rrc layer all is provided with an alarm threshold to each transmission channel among the present invention, and alarm threshold is disposed the layer to MAC; To each transmission channel; When the MAC layer is confirmed remaining PDU quantity in the second corresponding buffering area of this transmission channel greater than the corresponding alarm threshold of this transmission channel; Confirm to occur in this transmission channel the situation of overstocked PDU; Worsen for fear of this situation continued; The MAC layer can in time send the alarm indication and give rlc layer, and the notice rlc layer suspends the process of sending PDU in the submission cycle to this transmission channel earlier, promptly notifies rlc layer to come at next corresponding submission cycle of this transmission channel PDU that do not redispatch; When rlc layer receives the alarm indication of MAC layer transmission, indicate definite appearance to overstock the transmission channel of PDU situation, and stop to send PDU in next corresponding submission cycle to the MAC layer at this transmission channel according to this alarm; Wherein, the MAC layer can will be alarmed indication through the mode of primitive and send to rlc layer among the present invention;

The present invention is through being provided with the mode of alarm threshold, and the MAC layer can be controlled the PDU quantity in second buffering area timely and accurately, under the situation that resource distribution allows, brings into play the maximum transmitted ability of transmission channel, and guarantees not occur overstocking the problem of a large amount of PDU; In addition; Periodically transmit a certain amount of PDU between rlc layer and the MAC layer; Only when the MAC layer occurs overstocking the phenomenon of PDU; Just can will alarm indication and send to rlc layer, reduce the primitives interoperation between MAC layer and the rlc layer dramatically, discharge the resource that a large amount of primitives interoperations take through primitive.

Among the present invention; Alarm threshold to each transmission channel setting can be provided with according to actual conditions, and when alarm threshold was provided with greatly, the MAC layer can be bigger to the tolerance of residue PDU quantity in second buffering area; The MAC layer will reduce to the frequency that rlc layer sends the alarm indication through sending primitive like this; Help reducing the primitives interoperation between MAC layer and the rlc layer, still, when alarm threshold is provided with greatly; The quantity of residue PDU will be more in second buffering area, second buffering area need be set take bigger memory space; Hence one can see that, when alarm threshold is set, should keep balance between the two at " minimizing primitives interoperation " and " saving MAC layer memory space " as far as possible.

Preferable, should be to the alarm threshold that each transmission channel is provided with more than or equal to the corresponding submission quantity of this transmission channel.

Preferably, the inventive method also comprises:

The MAC layer receives the information that comprises alarm threshold that rrc layer sends; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given rlc layer when becoming greater than said alarm threshold less than said alarm threshold; The quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent alarm and is removed indication and give rlc layer when becoming less than said alarm threshold greater than said alarm threshold; Said alarm indication and alarm are removed indication and are all comprised this transmitting channel information;

When rlc layer receives the alarm indication of MAC layer transmission, confirm corresponding transmission channel according to this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU and give the MAC layer; Rlc layer receives the alarm of MAC layer transmission and removes when indicating, and removes to indicate according to this alarm and confirms corresponding transmission channel; Remove the indication corresponding transmission channel to this alarm, continue to send PDU in next corresponding submission cycle and give the MAC layer at this transmission channel.

Concrete; When making the MAC layer that remaining PDU quantity is by the alarm threshold that becomes less than the corresponding alarm threshold of this transmission channel greater than this transmission channel in confirming the second corresponding buffering area of a certain transmission channel in the inventive method; Send the alarm indication and give rlc layer; Suspending transmission PDU with the notice rlc layer comes; And when making the MAC layer that remaining PDU quantity is by the alarm threshold that becomes greater than the corresponding alarm threshold of this transmission channel less than this transmission channel in confirming the second corresponding buffering area of this transmission channel, send alarm and remove indication and give rlc layer, continue to send PDU with the notice rlc layer and come.The MAC layer can will be alarmed indication or alarm to remove to indicate and send to rlc layer through the mode of primitive among the present invention; Adopt transmission alarm indication and alarm to remove the mode whether rlc layer continues to send PDU of controlling of indicating; Not only can realize controlling the purpose of PDU quantity in second buffering area; Can also further reduce the primitives interoperation between MAC layer and the rlc layer, further discharge the resource that primitives interoperation takies.

Embodiment one

Present embodiment provides a kind of air interface data transmission method, and is as shown in Figure 5, comprises the steps:

Step 50; When rrc layer is set up communication service; The submission cycle T is set, submits quantity pduNum and alarm threshold C to each transmission channel; And through primitive submission cycle T that each transmission channel is corresponding with submit to quantity pduNum to dispose to rlc layer, the submission cycle T that each transmission channel is corresponding, submit to quantity pduNum and alarm threshold C to dispose layer to MAC;

Step 51; Rlc layer receives rrc layer to be passed through the submission cycle T that is directed against each transmission channel of primitive transmission and submits quantity pduNum information to; The channel Mapping relation that rlc layer configures according to rrc layer; Confirm the logic channel group corresponding with each transmission channel, and first buffering area that each logic channel is corresponding in the said logic channel group (being designated hereinafter simply as the first corresponding buffering area of transmission channel); The MAC layer receives the submission cycle T to each transmission channel, submission quantity pduNum and the alarm threshold C that rrc layer sends through primitive, and the MAC layer is confirmed second buffering area corresponding with each transmission channel according to the channel Mapping relation that rrc layer configures;

Step 52; Rlc layer receives the SDU of network side; Confirm logic channel and corresponding first buffering area (being arranged in the rlc layer) of this logic channel that said SDU is corresponding; Rlc layer obtains a plurality of PDU to the said SDU section of presorting, and the said a plurality of PDU that obtain are deposited in the said first definite buffering area;

Step 53, to each transmission channel, if submit to cycle T to arrive and do not receive the alarm indication that the MAC layer sends, then execution in step 54, if submit to cycle T not arrive or submit to cycle T to arrive but receive the alarm indication that the MAC layer sends, then execution in step 55;

Step 54, rlc layer obtains the PDU that quantity equals to submit to quantity pduNum from the first corresponding buffering area of this transmission channel, and is transferred to the MAC layer through corresponding logic channel, and execution in step 56;

Step 55, rlc layer are suspended transmission PDU and are given the MAC layer, and execution in step 56;

Step 56 to each transmission channel, is submitted cycle T at each, and the submission quantity that the MAC layer receives the rlc layer transmission is pduNum PDU, and the PDU of said reception is deposited in the second corresponding buffering area of this transmission channel;

Step 57, to each transmission channel, when its TTI arrived, the MAC layer was judged in the second corresponding buffering area of this transmission channel remaining PDU quantity whether greater than alarm threshold C accordingly, if then execution in step 58, otherwise, execution in step 59;

Step 58, MAC course rlc layer are sent the alarm indication and are submitted to cycle T PDU that do not redispatch to come to inform rlc layer in corresponding next of this transmission channel, and execution in step 59;

Step 59, the MAC layer selects this transmission channel current TTI of decision can send what PDU based on packet scheduling and TFC, from the second corresponding buffering area of this transmission channel, takes out the PDU of this quantity then, sends through this transmission channel, returns execution in step 52.

Embodiment two

Present embodiment provides a kind of air interface data transmission method to concrete wireless-transmission network as shown in Figure 4; Transmission channel C2 is corresponding with logic channel L4 and L5 in this wireless-transmission network; And the TFS of transmission channel C2 is configured to { 0*100,1*100,2*100; 3*100; 4*100} that is to say that this transmission channel C2 sends PDU in a TTI=40ms quantity tbNum can be 0 or 1 or 2 or 3 or 4, and promptly this transmission channel C2 sends the maximum quantity MAX (tbNum)=4 of PDU in a TTI; The present embodiment method comprises the steps:

Steps A 1 when rrc layer is set up communication service, to the submission cycle T 1=1 * TTI=40ms of transmission channel C2 configuration, is submitted quantity pduNum1=1 * MAX (tbNum)=4 to, alarm threshold S1=4; Rrc layer will dispose to rlc layer to submission cycle T 1, the submission quantity pduNum1 that transmission channel C2 is provided with through primitive, will dispose the layer to MAC to submission cycle T 1, submission quantity pduNum1 and the alarm threshold S1 that transmission channel C2 is provided with;

Steps A 2, rlc layer are confirmed first buffering area that logic channel L4 and L5 are corresponding respectively, and the priority of logic channel L4 is higher than logic channel L5, and the MAC layer is confirmed second buffering area that transmission channel C2 is corresponding;

Steps A 3; Suppose two SDU of the current reception of rlc layer, be respectively SDU1 and SDU2, wherein; SDU1 is corresponding to logic channel L4; SDU2 then will be cut apart the PDU that obtains to SDU1 and deposit the first corresponding buffering area of logic channel L4 in corresponding to logic channel L5, will cut apart the PDU that obtains to SDU2 and deposit the first corresponding buffering area of logic channel L5 in;

Steps A 4; To transmission channel C2; When submitting to cycle T 1 (40ms) to arrive and not receive the alarm indication of MAC layer transmission; Rlc layer is according to priority orders traversal logic channel L4 and logic channel L5, and (m is a natural number, and m≤pduNum1 from the first corresponding buffering area of logic channel L4, to obtain m; Be m≤4) individual PDU and this m PDU sent to the MAC layer through logic channel L4, obtain (pduNum1-m) individual PDU and this (pduNum1-m) individual PDU sent to the MAC layer through logic channel L5 from the first corresponding buffering area of logic channel L5; Rlc layer repeats said process, and all PDU in first buffering area of first buffering area corresponding logic channel L4 and logic channel L5 correspondence all handle;

Submit to cycle T 1 (40ms) not to arrive or is submitting cycle T 1 (40ms) to arrive but when receiving that alarm that the MAC layer sends is indicated, rlc layer stops to MAC layer transmission PDU;

Steps A 5 to transmission channel C2, is being submitted to cycle T 1 (40ms) to arrive and not when rlc layer sends the alarm indication, the MAC layer receives 4 PDU that rlc layer sends, and these 4 PDU is being deposited in the second corresponding buffering area of transmission channel C2;

Steps A 6; In each TTI of transmission channel C2 (40ms); The MAC layer selects to calculate the PDU quantity that current TTI (40ms) can be sent according to packet scheduling and TFC, and the PDU of taking-up respective numbers sends through transmission channel C2 from the second corresponding buffering area of transmission channel C2;

When the MAC layer overstocks owing to a variety of causes causes data; In a certain TTI of this transmission channel C2 (40ms); The quantity that the MAC layer detects residue PDU in the second corresponding buffering area of transmission channel C2 is during greater than alarm threshold S1; Send the alarm indication to rlc layer through primitive, the notice rlc layer submits to cycle T 1 (40ms) PDU that do not redispatch to come in next of this transmission channel C2; In next TTI of this transmission channel C2 (40ms); The MAC layer continues to handle remaining PDU in the second corresponding buffering area of this transmission channel C2; If the quantity of residue PDU is still greater than alarm threshold S1; Then continue to send the alarm indication and give rlc layer through primitive, in detecting the second corresponding buffering area of this transmission channel C2 the quantity of residue PDU no longer greater than alarm threshold S1 till, rlc layer just can continue periodically to send PDU to transmission channel C2 to the MAC layer.

Embodiment three

Present embodiment provides a kind of air interface data transmission method to concrete wireless-transmission network as shown in Figure 4; Transmission channel C1 is corresponding with logic channel L1, L2 and L3 in this wireless-transmission network; And the TFS of transmission channel C1 is configured to { 0*100,1*100,2*100; 3*100; 4*100} that is to say that this transmission channel C1 sends PDU in a TTI=40ms quantity tbNum can be 0 or 1 or 2 or 3 or 4, and promptly this transmission channel C1 sends the maximum quantity MAX (tbNum)=4 of PDU in a TTI; The present embodiment method comprises the steps:

Step B1 when rrc layer is set up communication service, to the submission cycle T 1=2 * TTI=80ms of transmission channel C1 configuration, submits quantity pduNum1=2 * MAX (tbNum)=8 to, alarm threshold S2=8; Rrc layer will dispose to rlc layer to submission cycle T 1, the submission quantity pduNum1 that transmission channel C1 is provided with through primitive, will dispose the layer to MAC to submission cycle T 1, submission quantity pduNum1 and the alarm threshold S2 that transmission channel C1 is provided with;

Step B2, rlc layer confirm first buffering area that logic channel L1, L2 and L3 are corresponding respectively, and the priority relationship of logic channel L1, L2 and L3 is that L1 is higher than L2, and L2 is higher than L3, and the MAC layer is confirmed second buffering area that transmission channel C1 is corresponding;

Step B3 supposes that rlc layer is current to receive three SDU, is respectively SDU3, SDU4, SDU5; Wherein, SDU3 is corresponding to logic channel L1, and SDU4 is corresponding to logic channel L2; SDU5 is corresponding to logic channel L3; Then will cut apart the PDU that obtains and deposit the first corresponding buffering area of logic channel L1 in, will cut apart the PDU that obtains to SDU4 and deposit the first corresponding buffering area of logic channel L2 in, will cut apart the PDU that obtains to SDU5 and deposit the first corresponding buffering area of logic channel L1 in SDU3;

Step B4; To transmission channel C1; When submitting to cycle T 1 (80ms) to arrive and not receive the alarm indication of MAC layer transmission; Rlc layer is according to priority orders traversal logic channel L1, L2 and the first corresponding respectively buffering area of L3, and (m is a natural number, and m≤pduNum1 from the first corresponding buffering area of logic channel L1, to obtain m; Be m≤8) individual PDU and this m PDU sent to the MAC layer through logic channel L1; (n is a natural number, and the individual PDU of n≤pduNum1-m) also sends to the MAC layer with this n PDU through logic channel L2, from first buffering area of logic channel L3 correspondence, obtains (pduNum1-m-n) individual PDU and sends to the MAC layer through logic channel L3 from the first corresponding buffering area of logic channel L2, to obtain n; Rlc layer repeats said process, up to all handling all PDU among logic channel L1, L2 and the L3;

Submit to cycle T 1 (80ms) not to arrive or is submitting cycle T 1 (80ms) to arrive but when receiving that alarm that the MAC layer sends is indicated, rlc layer stops to MAC layer transmission PDU;

Step B5 to transmission channel C1, is submitting to cycle T 1 (80ms) to arrive and not when rlc layer sends the alarm indication, the MAC layer receives 8 PDU that rlc layer sends, and these 8 PDU is being deposited in the second corresponding buffering area of transmission channel C1;

Step B6; In each TTI of transmission channel C1 (40ms); The MAC layer selects to calculate the PDU quantity that current TTI can be sent according to packet scheduling and TFC, and the PDU of taking-up respective numbers sends through transmission channel C1 from the second corresponding buffering area of transmission channel C1;

When the MAC layer overstocks owing to a variety of causes causes data; In a certain TTI of this transmission channel C1 (40ms); The quantity that the MAC layer detects residue PDU in the second corresponding buffering area of transmission channel C1 is when becoming greater than alarm threshold S2 less than alarm threshold S2; Send the alarm indication through primitive to rlc layer, the notice rlc layer stops to send PDU and comes; In next TTI of this transmission channel C1 (40ms); The MAC layer continues to handle remaining PDU in the second corresponding buffering area of this transmission channel C1; If the quantity of residue PDU is still greater than alarm threshold S2; Then continue in ensuing TTI (40ms), to handle remaining PDU; When the quantity of residue PDU was no longer greater than alarm threshold S2 in detecting the second corresponding buffering area of this transmission channel C1, the MAC layer just sent alarm through primitive to rlc layer and removes indication, and the notice rlc layer can continue periodically to send PDU to the MAC layer to transmission channel C1.

Accordingly, the present invention also provides a kind of air interface data transmission equipment, and is as shown in Figure 6, and this equipment comprises: radio resource control RRC module 61, Radio Link control RLC module 62 and media access control MAC module 63; Wherein,

RRC module 61 is used for confirming the submission cycle and submits quantity to; The information that will comprise said submission cycle and submission quantity sends to RLC module 62 and MAC module 63 respectively;

RLC module 62 is used to receive the information that comprises submission cycle and submission quantity that RRC module 61 is sent; To deposit in first buffering area according to the protocol Data Unit PDU that Service Data Unit SDU obtains; In each submission cycle, with submitting to a quantity PDU to send to MAC module 63 described in first buffering area through logic channel;

MAC module 63 is used to receive the information that comprises submission cycle and submission quantity that RRC module 61 is sent; In each submission cycle, receive the said submission quantity PDU that RLC module 62 is sent; The PDU of said reception is deposited in second buffering area; At each Transmission Time Interval TTI, from said second buffering area, take out PDU and send through transmission channel.

Preferably, said RRC module 61 specifically is used for:

Preferably, said RRC module 61 is further used for:

To each transmission channel, confirm submission cycle N times for this transmission channel self TTI, wherein, N is a positive integer;

To each transmission channel, confirm to submit quantity to be this transmission channel sends N times of PDU maximum quantity in self TTI.

Preferably, said first buffering area is corresponding one by one with each logic channel; Then said RLC module 62 specifically is used for:

To each transmission channel,, choose a said submission quantity PDU in first buffering area that each logic channel is corresponding from said logic channel group, and send to MAC module 63 through each logic channel in the said logic channel group in each submission cycle.

Preferably, said RLC module 62 is further used for:

The logic channel of the said PDU that chooses through correspondence sent to MAC module 63.

Preferably, said second buffering area is corresponding one by one with each transmission channel; Then said MAC module 63 specifically is used for:

Preferably, corresponding all logic channels of said first buffering area; Then said RLC module 62 specifically is used for:

To each transmission channel,, from first buffering area with in the said logic channel group, choose a said submission quantity PDU among the corresponding PDU of each logic channel, and send to MAC module 63 through each logic channel in the said logic channel group in each submission cycle.

Preferably, said RLC module 62 is further used for:

According to the priority orders of each logic channel in the said logic channel group, choose PDU corresponding in first buffering area successively with each logic channel, the said PDU sum of choosing equals said submission quantity;

Preferably, corresponding all transmission channels of said second buffering area; Then said MAC module 63 specifically is used for:

In each submission cycle, receive the said submission quantity PDU that RLC module 62 is sent; The PDU of said reception is deposited in second buffering area; At each TTI, from said second buffering area, take out PDU and send through transmission channel, specifically comprise:

Preferably, said RRC module 61 also is used for: confirm and each transmission channel alarm threshold one to one; The information that will comprise said alarm threshold sends to MAC module 63;

Said MAC module 63 also is used for: receive the information that comprises alarm threshold that RRC module 61 is sent; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given RLC module 62 during greater than said alarm threshold, and said alarm indication comprises this transmitting channel information;

Said RLC module 62 also is used for: when receiving the alarm indication of MAC module 63 transmissions, confirm corresponding transmission channel based on this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU in next corresponding submission cycle at this transmission channel and give MAC module 63.

Said MAC module 63 also is used for: receive the information that comprises alarm threshold that RRC module 61 is sent; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given RLC module 62 when becoming greater than said alarm threshold less than said alarm threshold; The quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent alarm and is removed indication and give RLC module 62 when becoming less than said alarm threshold greater than said alarm threshold; Said alarm indication and alarm are removed indication and are all comprised this transmitting channel information;

Said RLC module 62 also is used for: when receiving the alarm indication of MAC module 63 transmissions, confirm corresponding transmission channel based on this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU and give MAC module 63; The alarm that receives 63 transmissions of MAC module is removed when indicating, and removes to indicate based on this alarm and confirms corresponding transmission channel; Remove the indication corresponding transmission channel to this alarm, continue to send PDU in next corresponding submission cycle and give MAC module 63 at this transmission channel.

Preferably, said air interface data transmission equipment is base station or user terminal.

Concrete, said air interface data transmission equipment can be for having the equipment of air interface data transfer function, like base station or user terminal.

The concrete realization function of each module repeats no more at this referring to the concrete implementation procedure of above-mentioned air interface data transmission method in the said air interface data transmission equipment.

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, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. an air interface data transmission method is characterized in that, comprising:

2. transmission method as claimed in claim 1 is characterized in that, said rrc layer is confirmed the submission cycle and submitted quantity to, specifically comprises:

3. transmission method as claimed in claim 2 is characterized in that,

Said rrc layer is confirmed to submit to the cycle one to one with each transmission channel according to the TTI of each transmission channel, specifically comprises: to each transmission channel, confirm submission cycle N times for this transmission channel self TTI, wherein, N is a positive integer;

Said rrc layer sends the ability of PDU in self TTI according to each transmission channel; Confirm to submit quantity one to one to each transmission channel; Specifically comprise: to each transmission channel, to confirm to submit to quantity be this transmission channel sends N times of PDU maximum quantity in self TTI.

4. transmission method as claimed in claim 2 is characterized in that, said first buffering area is corresponding one by one with each logic channel; Then

5. transmission method as claimed in claim 4; It is characterized in that; Choose a said submission quantity PDU in said rlc layer first buffering area that each logic channel is corresponding from said logic channel group, and send to the MAC layer, specifically comprise through each logic channel in the said logic channel group:

6. transmission method as claimed in claim 4 is characterized in that, said second buffering area is corresponding one by one with each transmission channel; Then

7. transmission method as claimed in claim 2 is characterized in that, corresponding all logic channels of said first buffering area; Then

8. transmission method as claimed in claim 7; It is characterized in that; Said rlc layer is chosen a said submission quantity PDU among the corresponding PDU of each logic channel from first buffering area with in the said logic channel group, and sends to the MAC layer through each logic channel in the said logic channel group, specifically comprises:

9. transmission method as claimed in claim 7 is characterized in that, corresponding all transmission channels of said second buffering area; Then

10. like the arbitrary described transmission method of claim 1 ~ 9, it is characterized in that, also comprise:

11. like the arbitrary described transmission method of claim 1 ~ 9, it is characterized in that, also comprise:

12. an air interface data transmission equipment is characterized in that, comprising: radio resource control RRC module, Radio Link control RLC module and media access control MAC module; Wherein,

13. equipment as claimed in claim 12 is characterized in that, said RRC module specifically is used for:

14. equipment as claimed in claim 13 is characterized in that, said RRC module is further used for:

15. equipment as claimed in claim 13 is characterized in that, said first buffering area is corresponding one by one with each logic channel; Then said RLC module specifically is used for:

To each transmission channel,, choose a said submission quantity PDU in first buffering area that each logic channel is corresponding from said logic channel group, and send to the MAC module through each logic channel in the said logic channel group in each submission cycle.

16. equipment as claimed in claim 15 is characterized in that, said RLC module is further used for:

The logic channel of the said PDU that chooses through correspondence sent to the MAC module.

17. equipment as claimed in claim 15 is characterized in that, said second buffering area is corresponding one by one with each transmission channel; Then said MAC module specifically is used for:

18. equipment as claimed in claim 13 is characterized in that, corresponding all logic channels of said first buffering area; Then said RLC module specifically is used for:

To each transmission channel,, from first buffering area with in the said logic channel group, choose a said submission quantity PDU among the corresponding PDU of each logic channel, and send to the MAC module through each logic channel in the said logic channel group in each submission cycle.

19. equipment as claimed in claim 18 is characterized in that, said RLC module is further used for:

20. equipment as claimed in claim 18 is characterized in that, corresponding all transmission channels of said second buffering area; Then said MAC module specifically is used for:

In each submission cycle, receive the said submission quantity PDU that the RLC module is sent; The PDU of said reception is deposited in second buffering area; At each TTI, from said second buffering area, take out PDU and send through transmission channel, specifically comprise:

21. like the arbitrary described equipment of claim 12 ~ 20, it is characterized in that,

Said RRC module also is used for: confirm and each transmission channel alarm threshold one to one; The information that will comprise said alarm threshold sends to the MAC module;

Said MAC module also is used for: receive the information that comprises alarm threshold that the RRC module is sent; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given the RLC module during greater than said alarm threshold, and said alarm indication comprises this transmitting channel information;

Said RLC module also is used for: when receiving the alarm indication of MAC module transmission, confirm corresponding transmission channel according to this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU in next corresponding submission cycle at this transmission channel and give the MAC module.

22. like the arbitrary described equipment of claim 12 ~ 20, it is characterized in that,

Said MAC module also is used for: receive the information that comprises alarm threshold that the RRC module is sent; Confirm the alarm threshold that each transmission channel is corresponding; To each transmission channel, the quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent the alarm indication and is given the RLC module when becoming greater than said alarm threshold less than said alarm threshold; The quantity of confirming residue PDU in the second corresponding buffering area of this transmission channel is sent alarm and is removed indication and give the RLC module when becoming less than said alarm threshold greater than said alarm threshold; Said alarm indication and alarm are removed indication and are all comprised this transmitting channel information;

Said RLC module also is used for: when receiving the alarm indication of MAC module transmission, confirm corresponding transmission channel based on this alarm indication; To this alarm indication corresponding transmission channel, stop to send PDU and give the MAC module; The alarm that receives the transmission of MAC module is removed when indicating, and removes to indicate based on this alarm and confirms corresponding transmission channel; Remove the indication corresponding transmission channel to this alarm, continue to send PDU in next corresponding submission cycle and give the MAC module at this transmission channel.

23. equipment as claimed in claim 12 is characterized in that, said equipment is base station or user terminal.