CN102238735A - Method and system for allocating maximum number of soft channel bits available - Google Patents

Abstract

The invention discloses a method and a system for allocating the maximum number of soft channel bits available in a hybrid automatic repeat request (HARQ) application process. The method comprises the following steps of: setting a temporary memory size NTIR=T/N at a node B, wherein T is the total number of the soft channel bits of user equipment (UE), and N is the number of HARQ processes configured for the UE; determining that NIR1= NIR2= ... NIRN-1= a value which is closest to and not less than NTIR in pre-defined enumeration values, wherein NIRi is the maximum number of soft channel bits available in the ith HARQ process; setting a residual memory size to determine that NIRN is equal to a value which is closest to and not more than NLIR in the enumeration values; and notifying a wireless network controller of NIR1...NIRN at the node B. By the method and the system, a high memory utilization rate can be achieved.

Description

Peaked distribution method of available soft channel bit and system

Technical field

The present invention relates to the communications field, retransmit the peaked distribution method of available soft channel bit and the system of application (Hybrid-Automatic Repeat reQuest abbreviates HARQ as) treatment progress in particular to a kind of mixing automatically.

Background technology

High speed downlink packet inserts (High-Speed Downlink Packet Access, abbreviating HSDPA as) technology can improve power system capacity, and can significantly promote the descending user data rate of WCDMA, the downlink transmission data rate of 10Mbit/s can be provided for Packet data service in the bandwidth of a 5MHz.Improvement on this performance stems from some key technologies that it adopts, and these technology comprise: Adaptive Modulation and Coding, fast dispatch, HARQ, advanced receiver design or the like.

The HSDPA technology has been introduced a new transmission channel, high speed descending sharing channel (High Speed Downlink Shared Channel,, hereinafter to be referred as HS-DSCH), in order to the load of carrying HSDPA.The function that HS-DSCH provides has: according to fast dispatch, short transmission blanking time and the dynamic transport block size and the HARQ of the quick adapted transmission form of channel condition, giving consideration to channel quality and priority.

In HSDPA, the processing that retransmits application has moved on in the Node B, so that the fastest response speed to be provided.The HARQ mode that HSDPA uses is: Node B sends a data block, begins then to wait for, until the feedback that receives from the affirmation/negative acknowledgment of user terminal (User Equipment abbreviates UE as).

In order to make full use of the intermittence during this period of time of waiting for the UE feedback, UE operation a plurality of independently HARQ treatment progress (HARQ process) can be set, different HARQ treatment progress started in the different transmission intercal time.Be that a UE can move 8 HARQ treatment progress at most, and in the network of reality, be set to 6 usually.

When UE receives misdata, retransmit with clear and definite whether the application to Node B by sending negative acknowledgment message.In case after UE receives data retransmission, before attempting to decode, can earlier information and the original information of receiving that retransmits be merged.HARQ uses 2 kinds to merge mechanism: follow the tracks of merging (Chase Combining) and incremental redundancy (IncrementalRedundancy).Follow the tracks of merging mechanism and be used for retransmitting vicious packet, need to retransmit the whole grouping that makes a mistake, the bandwidth resources of waste are more than incremental redundancy mechanism.Incremental redundancy mechanism is then selected correct bit from the grouping of original transmission and retransmission packet, the data block of re-transmission only contains the correction bit to original misdata, in the hope of reach maximum transmission benefit in available bandwidth as far as possible.

As shown in Figure 1, the HARQ function is to be made up of twice rate-matched (Rate Matching) and a virtual incremental redundancy buffer memory (virtual Incremental Redundancy buffer abbreviates virtual IR buffer as).Rate-matched is complementary the virtual IR buffer of input bit and UE for the first time.(the maximum number of softchannel bits available is hereinafter referred to as N for the available soft channel bit maximum of each HARQ treatment progress in the virtual incremental redundancy buffer memory _IR), or claim the buffer memory size (Process Memory Size) of HARQ treatment progress to indicate by high-level signaling, if the input bit number is greater than N _IR, then punch; Otherwise do not carry out the first rate coupling.For the second time rate-matched is by punching or repeated operation, and the bit number in the Bit data of each Transmission Time Interval of HS-DSCH that the first rate coupling is exported and the physical channel frame that HS-DSCH is mapped to is complementary.

N _IRIt is the key parameter of HARQ.Node B relies on this parameter can carry out appropriate rate-matched in each HARQ treatment progress, encode.UE relies on this parameter can carry out appropriate decoding in each HARQ treatment progress, obtain correct data block information.For same HARQ treatment progress, Node B and UE must use same N _IRValue, N _IRThe understanding of value and use must keep in full accord between Node B and UE, otherwise channel bit position and logic implication all confusion can take place.

In HSDPA, moved on in the Node B owing to retransmit the processing of application, so the N of each HARQ treatment progress _IRDetermine by Node B.In the foundation or reprovision process of HS-DSCH, Node B is passed through node B application part (Node B Application Part abbreviates NBAP as) high-level signaling the N of each HARQ treatment progress _IRInformation is told radio network controller.Then, radio network controller is with the N of this each HARQ treatment progress _IRInformation is by Radio Resource control (Radio Resource Control abbreviates RRC as) high-level signaling notice UE.Like this, for same HARQ treatment progress, Node B and UE use this N of appointment _IRValue.

It (is N that Node B distributes HARQ Memory _IR) dual mode arranged:

Implicit expression: as long as Node B this moment returns the HARQ process number of distribution, Node B and UE divided by the HARQ number, just obtain the employed buffer memory size of each HARQ process (ProcessMemory Size) based on total bit number of the pairing soft channel of UE ability rating.

For example, when Node B indication HARQ number equaled 6, the value of the Process Memory Size of each HARQ that Node B and UE calculate correspondence under the total bit number situation of different UEs ability was as shown in table 1 below:

Table 1

Total number?of?soft channel?bits	HARQ?Number	HARQ?process?memory?size
			19200	6	3200
28800	6	4800
			38400	6	6400
57600	6	9600
			67200	6	11200
115200	6	19200
			134400	6	22400
172800	6	28800
			14400	6	2400
259200	6	43200
			345600	6	57600
518400	6	86400
			691200	6	115200
1036800	6	172800

Explicit: this moment, Node B will return the needed buffer memory size of each HARQprocess (Process Memory Size) in its HARQ number that distributes.And during explicit allocation, in the message flow of Iub mouth and Uu (eating dishes without rice or wine) in order to reduce the data traffic that information is transmitted, the 3GPP definition can only be transmitted following enumerated value: Integer (800..16000 by step of (step-length) 800,17600..32000 by step of 1600,36000..80000 by step of4000,88000..160000 by step of 8000,176000..304000 by step of16000).

The inventor finds in the correlation technique, is showing under the situation of distribution, and Node B is not distributed the reasonably available soft channel bit maximum in the virtual incremental redundancy buffer memory for each HARQ treatment progress, may cause the buffer memory utilance low.

Summary of the invention

Main purpose of the present invention is to provide a kind of peaked distribution method of available soft channel bit and system of mixing automatic re-transmission application treatment progress, to address the above problem at least.

According to an aspect of the present invention, provide a kind of peaked distribution method of available soft channel bit of HARQ treatment progress, having comprised: Node B is provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of user equipment (UE), N is the HARQ treatment progress quantity for the UE configuration; Determine N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress; The remaining cache size is set

Determine N _IRNIn=the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue; Node B is with N _IR1... N _IRNBe notified to radio network controller.

According to another aspect of the present invention, provide a kind of peaked distribution system of available soft channel bit of HARQ treatment progress, comprised Node B, radio network controller and UE, wherein, Node B comprises: first is provided with module, is used to be provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of UE, N is the HARQ treatment progress quantity for the UE configuration; First determination module is used for determining N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress; Second is provided with module, is used to be provided with the remaining cache size

Second determination module is used for determining N _IRNIn=the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue; Notification module is used for N _IR1... N _IRNBe notified to radio network controller.

By the present invention, before determining the available soft channel bit maximum of N-1 HARQ treatment progress be in the enumerated value with average N _TIRThe most approaching and be not less than N _TIRValue, and the available soft channel bit maximum of determining N HARQ treatment progress be in the enumerated value with remaining cache N _LIRThe most approaching and be not more than N _LIRValue, solved the low problem of buffer memory utilance in the correlation technique, can prevent that buffer memory from overflowing, and can realize higher buffer memory utilance.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the HARQ implementation procedure schematic diagram according to correlation technique;

Fig. 2 is the flow chart according to the peaked distribution method of available soft channel bit of the HARQ treatment progress of the embodiment of the invention;

Fig. 3 is the detail flowchart according to the peaked distribution method of available soft channel bit of the HARQ treatment progress of the embodiment of the invention;

Fig. 4 is the structured flowchart that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically;

Fig. 5 is the detailed block diagram one that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically;

Fig. 6 is the detailed block diagram two that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically;

Fig. 7 is the flow chart according to the method for the buffer memory size of the distribution HARQ of the embodiment of the invention 1;

Fig. 8 is the flow chart according to the method for the buffer memory size of the distribution HARQ of the embodiment of the invention 2;

Fig. 9 is the flow chart according to the method for the buffer memory size of the distribution HARQ of the embodiment of the invention 3.

Embodiment

Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.

In HSDPA, the N of each HARQ treatment progress _IRBy the Node B decision, Node B is with the N of each HARQ treatment progress _IRInformation notice radio network controller, then, radio network controller is with the N of each HARQ treatment progress _IRInformation notice UE.Below introduce Node B and distribute N for each HARQ treatment progress _IRProcess.

Fig. 2 is that this method comprises according to the flow chart of the peaked distribution method of available soft channel bit of the HARQ treatment progress of the embodiment of the invention:

Step S202, Node B is provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of UE, N is the HARQ treatment progress quantity for the UE configuration;

Step S204 determines N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress;

Step S206 is provided with the remaining cache size $N_{\mathrm{LIR}}=T-\underset{i=1}{\overset{N-1}{\mathrm{\Σ}}}{N}_{\mathrm{IRi}};$

Step S208 determines N _IRNIn=the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue;

Step S210, Node B is with N _IR1... N _IRNBe notified to radio network controller.

In the correlation technique, showing under the situation of distribution that Node B is not distributed the reasonably available soft channel bit maximum in the virtual incremental redundancy buffer memory for each HARQ treatment progress, may cause buffer memory to overflow or the buffer memory utilance low.In the method that the embodiment of the invention provides, before at first determining the available soft channel bit maximum of N-1 HARQ treatment progress be in the enumerated value with average N _TIRThe most approaching and be not less than N _TIRValue, the available soft channel bit maximum of determining N HARQ treatment progress again be in the enumerated value with remaining cache N _LIRThe most approaching and be not more than N _LIRValue, optimized N _TIRWith cooperating between the enumerated value, utilized the total bit number T of soft channel of UE as much as possible, thereby improved the buffer memory utilance.

Fig. 3 is the detail flowchart according to the peaked distribution method of available soft channel bit of the HARQ treatment progress of the embodiment of the invention, preferably, before step S208, can also comprise:

Step S302 judges N _LIRWhether less than 0, if, then enter step S304, otherwise, step S208 entered;

Step S304 upgrades N _IR1=N _IR2=... N _IRN-1In=the enumerated value with N _TIRThe most approaching and be not more than N _TIRValue, be provided with once more

And continuation execution in step S208.

By said process, can guarantee the N that distributes _IRThe total amount of value is no more than the total bit number T of soft channel of UE, has prevented from effectively to overflow.

Preferably, Node B is with N _IR1... N _IRNBe notified to after the radio network controller, radio network controller is with N _IR1... N _IRNBe notified to UE.By this process, can guarantee Node B and the N of UE place _IR1... N _IRNConsistency, it is chaotic to prevent that channel bit position and logic implication from taking place.

Preferably, Node B by signaling with N _IR1... N _IRNBe notified to radio network controller, wherein, signaling comprises: Radio Link is set up response message, wireless link reconfigured preparation message or wireless link reconfigured response message.Node B is notified N by existing signaling to UE _IR1... N _IRN, implement fairly simple.

Preferably, Node B is with N _IR1... N _IRNBeing notified to radio network controller comprises: Node B is with N _IR1... N _IRNBe notified to floating radio network controller, floating radio network controller is with N _IR1... N _IRNBe notified to service wireless network controller, radio network controller is with N _IR1... N _IRNBeing notified to UE comprises: service wireless network controller is with N _IR1... N _IRNBe notified to UE.Because there is the Iur mouth, the situation that also promptly can exist two RNC to link to each other, wherein, a RNC does Serving RNC, and a RNC does Drift Radio Network Controller, and then Node B is with N _IR1... N _IRNNotify service wireless network controller by floating radio network controller, be notified to UE by service wireless network controller again.

Preferably, radio network controller by signaling with N _IR1... N _IRNBe notified to UE, wherein, signaling comprises: RRC link establishment message, radio bearer are set up message, radio bearer reconfiguration message, transmission channel reconfiguration message or cell update acknowledge message.Radio network controller is notified N by existing signaling to UE _IR1... N _IRN, implement fairly simple.

Preferably, Node B is determined T in the following manner: Node B is obtained the ability rating of UE; Node B is determined T according to ability rating.By this mode, as long as Node B is known the ability rating of UE, can obtain the T value of this UE correspondence by mode such as table look-up, reduced the signaling consumption of reciprocal process.

Fig. 4 is the structured flowchart that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically, comprises Node B 41, radio network controller 42 and UE 43, it is characterized in that Node B 41 comprises:

First is provided with module 44, is used to be provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of UE 43, N is the HARQ treatment progress quantity for UE 43 configurations;

First determination module 45 is used for determining N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress;

Second is provided with module 46, is used to be provided with the remaining cache size $N_{\mathrm{LIR}}=T-\underset{i=1}{\overset{N-1}{\mathrm{\Σ}}}{N}_{\mathrm{IRi}};$

Second determination module 47 is used for determining N _IRNIn=the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue;

Notification module 48 is used for N _IR1... N _IRNBe notified to radio network controller 42.

In the system that the embodiment of the invention provides, before at first determining by first determination module 45 of Node B 41 the available soft channel bit maximum of N-1 HARQ treatment progress be in the enumerated value with average N _TIRThe most approaching and be not less than N _TIRValue, again by second determination module 47 determine the available soft channel bit maximum of N HARQ treatment progress be in the enumerated value with remaining cache N _LIRThe most approaching and be not more than N _LIRValue, on the one hand, can guarantee the N that distributes _IRThe total amount of value is no more than the total bit number T of soft channel of UE 43, prevented from effectively to overflow, another aspect is by the processing of first determination module 45 and second determination module 47, utilize the total bit number T of soft channel of UE as much as possible, thereby improved the buffer memory utilance.

Fig. 5 is the detailed block diagram one that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically, and this system also comprises: judge module 52 is used to judge N _LIRWhether less than 0; Scheduler module 54, the judged result that is used at judge module 52 is under the situation that is, scheduling update module 56, the judged result of judge module 52 for situation not under, dispatch second determination module 46; Update module 56 is used to upgrade N _IR1=N _IR2=... N _IRN-1In=the enumerated value with N _TIRThe most approaching and be not more than N _TIRValue, be provided with once more

And dispatch second determination module 46.

Fig. 6 is the detailed block diagram two that retransmits the peaked distribution system of available soft channel bit of application HARQ treatment progress according to the mixing of the embodiment of the invention automatically, and preferably, radio network controller 42 comprises: notification module 62 is used for N _IR1... N _IRNBe notified to UE 43, can guarantee Node B 41 and UE 43 N of place _IR1... N _IRNConsistency, it is chaotic to prevent that channel bit position and logic implication from taking place.

Preferably, the notification module 48 of Node B 41 is used for by signaling N _IR1... N _IRNBe notified to radio network controller 42, wherein, this signaling comprises: Radio Link is set up response message, wireless link reconfigured preparation message or wireless link reconfigured response message.Node B 41 is notified N by existing signaling to UE 43 _IR1... N _IRN, implement fairly simple.

Preferably, the notification module 42 of radio network controller 42 is used for by signaling N _IR1... N _IRNBe notified to UE, wherein, this signaling comprises: RRC link establishment message, radio bearer are set up message, radio bearer reconfiguration message, transmission channel reconfiguration message or cell update acknowledge message.Radio network controller 42 is notified N by existing signaling to UE 43 _IR1... N _IRN, implement fairly simple.

Need to prove, above predefined enumerated value can be 800 bits ... 16000 bits (step-length is 800 bits), 17600 bits ... 32000 bits (step-length is 1600 bits), 36000 bits ... 80000 bits (step-length is 4000 bits), 88000 bits ... 160000 bits (step-length is 8000), 176000 bits ... 304000 bits (step-length is 16000).

The embodiment 1-4 that describes below combines the technical scheme of above-mentioned a plurality of preferred embodiments.

Embodiment 1

This embodiment is 14 with the UE ability, and the corresponding total bit number of soft channel is that 259200bit is the method that the example explanation distributes the buffer memory size of HARQ, as shown in Figure 7, may further comprise the steps:

Step 710: divided by HARQ number (N=6), obtain temp_process_memory_size (is N to Node B based on the total bit number of soft channel (Total soft bits T=259200) of UE ability rating correspondence _TIR=43200);

Step 720: the 1st the definite method to the process_memory_size of (N-1) individual HARQ is as follows: find with this value the most approaching but more than or equal to the value process memory size1=44000 of this temp_process_memory_size from predefined enumerated value with temp_process_memory_size (43200).

Step 730: make process_memory_size2 (that is N, then _LIR)=T-(N-1) * process_memory_size1, obtain process_memory_size2=39200, then the process memory size of N HARQ equals to find with this value the most approaching but smaller or equal to the value (36000) of this process_memory_size2 from predefined enumerated value with process_memory_size2.

Step 740: Node B is returned the pairing process_memory_size of each HARQ (the 1st to the 5th HARQprocess_memory_size equals 44000, the 6 HARQprocess_memory_size and equal 36000) to radio network controller by wireless link reconfigured preparation.

Step 750: radio network controller is notified UE the pairing process_memory_size of each HARQ (the 1st to the 5th HARQ process_memory_size equals 44000, the 6 HARQ process_memory_size and equal 36000) by the radio bearer reallocation message.

Embodiment 2

This embodiment is 10 with the UE ability, and the corresponding total bit number of soft channel is that 172800bit is the method that example is described the buffer memory size of distributing HARQ, as shown in Figure 8, may further comprise the steps:

Step 810: Node B divided by HARQ number (N=6), obtains temp_process_memory_size (28800) based on the total bit number of soft channel (Total soft bits T=172800) of UE ability rating correspondence;

Step 820: the 1st the definite method to the process_memory_size of (N-1) individual HARQ is as follows: find with this value the most approaching but more than or equal to the value process_memory_size1=28800 of this temp_process_memory_size from predefined enumerated value with temp_process_memory_size (28800).

Step 830: make process_memory_size2=T-(N-1) * process_memory_size1 then, obtain process_memory_size2=28800, then the process_memory_size of N HARQ equals to find with this value the most approaching but smaller or equal to the value (28800) of this process_memory_size2 from predefined enumerated value with process_memory_size2.

Step 840: Node B is set up response to radio network controller by Radio Link and is returned the pairing process_memory_size of each HARQ (28800).

Step 850: radio network controller is set up message informing to the pairing process_memory_size of each HARQ (28800) to UE by radio bearer.

Embodiment 3

This embodiment is 26 with the UE ability, and the corresponding total bit number of soft channel is that 619200bit is the method that example is described the buffer memory size of distributing HARQ, as shown in Figure 9, may further comprise the steps:

Step 910: Node B divided by HARQ number (N=12), obtains temp_process_memory_size (51600) based on the total bit number of soft channel (Total soft bits T=619200) of UE ability rating correspondence;

Step 920: the 1st the definite method to the process_memory_size of (N-1) individual HARQ is as follows: find with this value the most approaching but more than or equal to the value process_memory_size1=52000 of this temp_process_memory_size from predefined enumerated value with temp_process_memory_size (51600).

Step 930: make process_memory_size2=T-(N-1) * process_memory_size1 then, obtain process_memory_size2=47200, then the process memory size of N HARQ equals to find with this value the most approaching but smaller or equal to the value (44000) of this process_memory_size2 from predefined enumerated value with process_memory_size2.

Step 940: Node B is returned the pairing process_memory_size of each HARQ (the 1st to the 11st HARQprocess_memory_size equals 52000, the 12 HARQprocess_memory_size and equal 44000) to radio network controller by wireless link reconfigured preparation.

Step 950: radio network controller is set up message informing to the pairing process_memory_size of each HARQ (the 1st to the 11st HARQ process_memory_size equals 52000, the 12 HARQ process_memory_size and equal 44000) to UE by transmission channel.

In sum, the scheme that the embodiment of the invention provides can realize higher buffer memory utilance, and can prevent that further buffer memory from overflowing.

Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. one kind is mixed the peaked distribution method of available soft channel bit that retransmits application HARQ treatment progress automatically, it is characterized in that, comprising:

Node B is provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of user equipment (UE), N is the HARQ treatment progress quantity for described UE configuration;

Determine N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress;

The remaining cache size is set $N_{\mathrm{LIR}}=T-\underset{i=1}{\overset{N-1}{\mathrm{\Σ}}}{N}_{\mathrm{IRi}};$

Determine N _IRNIn=described the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue;

Described Node B is with N _IR1... N _IRNBe notified to radio network controller.

2. method according to claim 1 is characterized in that, also comprises:

Judge N _LIRWhether less than 0, if then upgrade N _IR1=N _IR2=... N _IRN-1In=described the enumerated value with N _TIRThe most approaching and be not more than N _TIRValue, be provided with once more

Determine N afterwards _IRNIn=described the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue; Otherwise, directly determine N _IRNIn=described the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue.

3. method according to claim 1 is characterized in that described Node B is with N _IR1... N _IRNBe notified to after the radio network controller, described radio network controller is with N _IR1... N _IRNBe notified to described UE.

4. method according to claim 3 is characterized in that described Node B is with N _IR1... N _IRNBeing notified to radio network controller comprises: described Node B is with N _IR1... N _IRNBe notified to floating radio network controller, described floating radio network controller is with N _IR1... N _IRNBe notified to service wireless network controller, described radio network controller is with N _IR1... N _IRNBeing notified to described UE comprises: described service wireless network controller is with N _IR1... N _IRNBe notified to described UE.

5. method according to claim 3 is characterized in that, described radio network controller by signaling with N _IR1... N _IRNBe notified to described UE, wherein, described signaling comprises: RRC link establishment message, radio bearer are set up message, radio bearer reconfiguration message, transmission channel reconfiguration message or cell update acknowledge message.

6. method according to claim 1 is characterized in that, described Node B by signaling with N _IR1... N _IRNBe notified to described radio network controller, wherein, described signaling comprises: Radio Link is set up response message, wireless link reconfigured preparation message or wireless link reconfigured response message.

7. method according to claim 1 is characterized in that, described Node B is determined T in the following manner:

Described Node B is obtained the ability rating of described UE;

Described Node B is determined T according to described ability rating.

8. one kind is mixed the peaked distribution system of available soft channel bit that retransmits application HARQ treatment progress automatically, comprises Node B, radio network controller and UE, it is characterized in that described Node B comprises:

First is provided with module, is used to be provided with interim buffer memory size N _TIR=T/N, wherein, T is the total bit number of soft channel of described UE, N is the HARQ treatment progress quantity for described UE configuration;

First determination module is used for determining N _IR1=N _IR2=... N _IRN-1In=predefined the enumerated value with N _TIRThe most approaching and be not less than N _TIRValue, wherein, N _IRiIt is the available soft channel bit maximum of i HARQ treatment progress;

Second is provided with module, is used to be provided with the remaining cache size $N_{\mathrm{LIR}}=T-\underset{i=1}{\overset{N-1}{\mathrm{\Σ}}}{N}_{\mathrm{IRi}};$

Second determination module is used for determining N _IRNIn=described the enumerated value with N _LIRThe most approaching and be not more than N _LIRValue;

Notification module is used for N _IR1... N _IRNBe notified to radio network controller.

9. system according to claim 8 is characterized in that, also comprises:

Judge module is used to judge N _LIRWhether less than 0;

Scheduler module, the judged result that is used at described judge module is under the situation that is, the scheduling update module, the judged result of described judge module for situation not under, dispatch described second determination module;

Described update module is used to upgrade N _IR1=N _IR2=... N _IRN-1In=described the enumerated value with N _TIRThe most approaching and be not more than N _TIRValue, be provided with once more

And dispatch described second determination module.

10. system according to claim 8 is characterized in that, described radio network controller comprises:

Notification module is used for N _IR1... N _IRNBe notified to described UE.

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