CN102237960A - Method and system for allocating maximum number of soft channel bits available - Google Patents
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Abstract
The invention discloses a method and a system for allocating the maximum number of soft channel bits available in hybrid-automatic repeat request processes. The method comprises the following steps of: setting a temporary memory size NTIR to be equal to T/N by using a node B, wherein T is the total number of the soft channel bits of user equipment (UE), and N is the number of the hybrid-automatic repeat request (HARQ) processes configured for the UE; determining that the maximum number NIR of the soft channel bits available in each of the N HARQ processes is a value, the closest to the NTIR and not greater than the NTIR, in predefined enumeration values; and informing a radio network controller of the NIR by using the node B. By the method and the system, memory overflow can be prevented.
Description
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, and high speed descending sharing channel (High Speed Downlink Shared Channel is hereinafter to be referred as HS-DSCH) is 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 buffer memory to overflow.
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 mixing automatic re-transmission application HARQ treatment progress, 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 the UE configuration; Determine the available soft channel bit maximum N of each the HARQ treatment progress in N the HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue; Node B is with N
IRBe notified to radio network controller.
According to another aspect of the present invention, a kind of peaked distribution system of available soft channel bit that mixes automatic re-transmission application HARQ treatment progress is provided, has comprised Node B, radio network controller and UE, wherein, Node B comprises: module is set, 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; Determination module is used for determining the available soft channel bit maximum N of each HARQ treatment progress of N HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue; Notification module is used for N
IRBe notified to radio network controller.
By the present invention, available soft channel bit maximum that adopt to determine each HARQ treatment progress be in the enumerated value with average N
TIRThe most approaching and be not more than N
TIRValue, solved the problem that buffer memory overflows or the buffer memory utilance is low in the correlation technique, can prevent that buffer memory from overflowing.
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 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. 4 is the detailed block diagram 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 flow chart according to the method for the buffer memory size of the distribution HARQ of the embodiment of the invention 1;
Fig. 6 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. 7 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 the available soft channel bit maximum N of each the HARQ treatment progress in N the HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue;
Step S206, Node B is with N
IRBe 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, the available soft channel bit maximum of determining each the HARQ treatment progress in N the HARQ treatment progress be in the enumerated value with average N
TIRThe most approaching and be not more than N
TIRValue, on the one hand, can guarantee buffer memory total amount (that is N, that distributes
IR *N) be no more than the total bit number T of soft channel of UE, prevented from effectively to overflow, another aspect is considered cache size that each HARQ treatment progress may take is from probability to equate, therefore, and for each HARQ treatment progress distributes the N of identical size
TIRValue, realized N
TIRReasonable distribution, thereby improved the buffer memory utilance, in addition, for each HARQ treatment progress distributes the N of identical size
TIRValue, notify this N in Node B to radio network controller
TIRThe time, the signaling consumption that needs is less.
Preferably, Node B is with N
IRBe notified to after the radio network controller, radio network controller is with N
IRBe notified to UE.By this process, can guarantee Node B and the N of UE place
IRConsistency, it is chaotic to prevent that channel bit position and logic implication from taking place.
Preferably, Node B by signaling with N
IRBe 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
IR, implement fairly simple.
Preferably, Node B is with N
IRBeing notified to radio network controller comprises: Node B is with N
IRBe notified to floating radio network controller, floating radio network controller is with N
IRBe notified to service wireless network controller, radio network controller is with N
IRBeing notified to UE comprises: service wireless network controller is with N
IRBe notified to UE.Because there is the Iur mouth, the situation that also promptly can exist two RNC to link to each other, one of them 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
IRBe 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
IR, 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. 3 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 31, radio network controller 32 and UE 33, it is characterized in that Node B 31 comprises:
Module 34 is set, 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 33, N is the HARQ treatment progress quantity for UE 33 configurations;
Determination module 35 is used for determining the available soft channel bit maximum N of each HARQ treatment progress of N HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue;
Notification module 36 is used for N
IRBe notified to radio network controller 32.
In the system that the embodiment of the invention provides, by Node B 31 really cover half piece 35 determine the available soft channel bit maximum of each HARQ treatment progress be in the enumerated value with average N
TIRThe most approaching and be not more than N
TIRValue, on the one hand, can guarantee that the buffer memory total amount of distributing is no more than the total bit number T of soft channel of UE 33, prevented from effectively to overflow, another aspect, consider cache size that each HARQ treatment progress may take is from probability to equate, therefore, by Node B 31 really cover half piece 35 distribute the N of identical size for each HARQ treatment progress
TIRValue, realized N
TIRReasonable distribution, thereby improved the buffer memory utilance, in addition, Node B 31 cover half piece 35 is really distributed the N of identical size for each HARQ treatment progress
TIRValue, notify this N in Node B 31 to radio network controller 32
TIRThe time, the signaling consumption that needs is less.
Fig. 4 is the detailed block diagram 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 32 comprises: notification module 42 is used for N
IRBe notified to UE 33, can guarantee Node B 31 and UE 33 N of place
IRConsistency, it is chaotic to prevent that channel bit position and logic implication from taking place.
Preferably, the notification module 36 of Node B 31 is used for by signaling N
IRBe notified to radio network controller 32, wherein, this signaling comprises: Radio Link is set up response message, wireless link reconfigured preparation message or wireless link reconfigured response message.Node B 31 is notified N by existing signaling to UE 33
IR, implement fairly simple.
Preferably, the notification module 42 of radio network controller 32 is used for by signaling N
IRBe 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 32 is notified N by existing signaling to UE 33
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 1-3 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 that example has been described the method for distributing the buffer memory size of HARQ, as shown in Figure 5, may further comprise the steps:
Step 510: Node B divided by HARQ number (N=6), obtains temp_process_memory_size (that is above-mentioned N, based on the total bit number of soft channel (T=259200) of UE ability rating correspondence
TIR=43200);
Step 520: Node B finds with this value the most approaching but smaller or equal to the value (40000) of this temp_process_memory_size, be called buffer memory size (process_memory_size) from predefined enumerated value to the temp_process_memory_size that calculates.
Step 530: Node B is returned the pairing process_memory_size of each HARQ (40000) to radio network controller by wireless link reconfigured preparation.
Step 540: radio network controller is notified UE the pairing process_memory_size of each HARQ (40000) by the radio bearer reallocation message.
Embodiment 2
This embodiment is 10 with the UE ability, and the total bit number of soft channel of its correspondence is that 172800bit is the method that the example explanation distributes the buffer memory size of HARQ, as shown in Figure 6, may further comprise the steps:
Step 610: Node B divided by HARQ number (6), obtains temp_process_memory_size (28800) based on the total bit number of soft channel (172800) of UE ability rating correspondence;
Step 620: Node B finds with this value the most approaching but smaller or equal to the value (28800) of this temp_process_memory_size, be called the buffer memory size from predefined enumerated value to the temp_process_memory_size that calculates.
Step 630: 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 640: 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 16 with the UE ability, and the total bit number of soft channel of its correspondence is that 345600bit 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: Node B divided by HARQ number (12), obtains temp_process_memory_size (28800) based on the total bit number of soft channel (345600) of UE ability rating correspondence;
Step 720: Node B finds with this value the most approaching but smaller or equal to the value (28800) of this temp_process_memory_size, be called process_memory_size from predefined enumerated value to the temp_process_memory_size that calculates.
Step 730: Node B is set up reprovision to radio network controller by Radio Link and is prepared to return the pairing process_memory_size of each HARQ (28800).
Step 740: radio network controller is notified UE the pairing process_memory_size of each HARQ (28800) by the transmission channel reallocation message.
In sum, the scheme that the embodiment of the invention provides can prevent that buffer memory from overflowing, and realizes higher buffer memory utilance, and has reduced signaling consumption.
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 the available soft channel bit maximum N of each the HARQ treatment progress in N the HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue;
Described Node B is with N
IRBe notified to radio network controller.
2. method according to claim 1 is characterized in that described Node B is with N
IRBe notified to after the radio network controller, described radio network controller is with N
IRBe notified to described UE.
3. method according to claim 2 is characterized in that described Node B is with N
IRBeing notified to radio network controller comprises: described Node B is with N
IRBe notified to floating radio network controller, described floating radio network controller is with N
IRBe notified to service wireless network controller, described radio network controller is with N
IRBeing notified to described UE comprises: described service wireless network controller is with N
IRBe notified to described UE.
4. method according to claim 2 is characterized in that, described radio network controller by signaling with N
IRBe 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.
5. method according to claim 1 is characterized in that, described Node B by signaling with N
IRBe 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.
6. 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.
7. 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:
Module is set, 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;
Determination module is used for determining the available soft channel bit maximum N of each HARQ treatment progress of N HARQ treatment progress
IRIn=predefined the enumerated value with N
TIRThe most approaching and be not more than N
TIRValue;
Notification module is used for N
IRBe notified to radio network controller.
8. system according to claim 7 is characterized in that, described radio network controller comprises:
Notification module is used for N
IRBe notified to described UE.
9. system according to claim 8 is characterized in that the notification module of described radio network controller is used for by signaling N
IRBe 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.
10. system according to claim 7 is characterized in that the notification module of described Node B is used for by signaling N
IRBe 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.
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| CN103414543A (en) * | 2013-08-15 | 2013-11-27 | 华为技术有限公司 | Method and terminal for adjusting HARQ buffer memory amounts |
| CN103999395A (en) * | 2012-03-06 | 2014-08-20 | 华为技术有限公司 | Method for compressing soft values |
| CN105721116A (en) * | 2014-12-04 | 2016-06-29 | 中兴通讯股份有限公司 | HARQ (hybrid automatic repeat request) process number distribution method and device |
| CN112970282A (en) * | 2018-11-05 | 2021-06-15 | 上海诺基亚贝尔股份有限公司 | Method, apparatus, and computer readable medium for HARQ process configuration |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103999395A (en) * | 2012-03-06 | 2014-08-20 | 华为技术有限公司 | Method for compressing soft values |
| CN103414543A (en) * | 2013-08-15 | 2013-11-27 | 华为技术有限公司 | Method and terminal for adjusting HARQ buffer memory amounts |
| CN103414543B (en) * | 2013-08-15 | 2016-09-28 | 华为技术有限公司 | A kind of method adjusting HARQ buffer memory and terminal |
| CN105721116A (en) * | 2014-12-04 | 2016-06-29 | 中兴通讯股份有限公司 | HARQ (hybrid automatic repeat request) process number distribution method and device |
| CN112970282A (en) * | 2018-11-05 | 2021-06-15 | 上海诺基亚贝尔股份有限公司 | Method, apparatus, and computer readable medium for HARQ process configuration |
| CN112970282B (en) * | 2018-11-05 | 2024-04-05 | 上海诺基亚贝尔股份有限公司 | Methods, devices and computer readable media for HARQ process configuration |
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Application publication date: 20111109 |