CN1914845B - Method for creating feedback message for ARQ in mobile communication system - Google Patents
Method for creating feedback message for ARQ in mobile communication system Download PDFInfo
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- CN1914845B CN1914845B CN2004800412256A CN200480041225A CN1914845B CN 1914845 B CN1914845 B CN 1914845B CN 2004800412256 A CN2004800412256 A CN 2004800412256A CN 200480041225 A CN200480041225 A CN 200480041225A CN 1914845 B CN1914845 B CN 1914845B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1848—Time-out mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
- H04L47/323—Discarding or blocking control packets, e.g. ACK packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
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Abstract
A method for generating a feedback message for ARQ, the method includes: a) recording an ACK type in a first field; b) estimating the last block sequence number of successively ACKed blocks and recording the estimated last block sequence number in a second field; c) recording the number of groups of successively ACKed blocks after the block sequence number estimated in b) as the number of ACK MAPs in a third field; d) recording the startblock sequence number of the respective ACK MAPs in a fourth field; e) recording the lengths of the respective ACK MAPs in a fifth field corresponding to the start block sequence number in d); and f) sending a feedback message including information on the first to the fifth fields.
Description
Technical field
The present invention relates to be used for produce feedback message and reduce the method for expense (overhead) at mobile radio system, especially, the present invention relates to utilize automatic re-send request may (ARQ) feedback message in the ACK map of redetermination to reduce the re-send request may algorithm of expense.
Background technology
In wireless mobile Internet system, developed automatic re-send request may (ARQ) algorithm and come in data send, to reduce error rate and strengthen error correcting capability.
The ARQ algorithm is used as with reference to the feedback information of the packet of each transmission (ACK and NACK) or considers not receive the overtime of corresponding feedback message and retransmit the method for impaired packet.
Fig. 1 is the block diagram of diagram ARQ transmitter and ARQ receiver.
The feedback message that ARQ receiver 23 sends ARQ to transmitter 10.The feedback message of ARQ is comprised ACK or NACK message according to the success or the failure of the transmission of PDU, and be used to the error correction of mobile Internet system.
Therefore, it is success or the result of the ARQ of failure that transmitter 10 can send with indication, to analyze data transmission efficiency according to receiver or channel quality.Can obtain QoS by the comparable data transmitting efficiency analyzes and dispatches.
Fig. 2 is the figure of diagram according to the signal flow of conventional ARQ method.
When transmitter 10 when receiver sends packet, receiver sends ACK message as the feedback message to ARQ to transmitter after receiving packet.ACK message comprises cumulative bad ACK message and selectivity ACK message, and this will be described below.
When ARQ receiver 23 successfully received packet, ARQ receiver 23 sent the ACK message to ARQ transmitter 13, but when owing to bad channel quality and during obliterated data, the ARQ receiver may not receive packet.
When losing ACK message owing to bad channel quality, transmitter may not receive ACK message from ARQ receiver 23 yet.Abandon corresponding packet after the predetermined useful life in case packet or ACK information drop-out, ARQ receiver just are preferably in, so as the ARQ transmitter can be not unrestrictedly wait acknowledge or retransmit this packet.
Traditionally, in step S1, when lost data packet on channel or ACK message, ARQ transmitter 13 sends to the ARQ receiver and abandons message, so transmitter 10 does not receive any ACK message in predetermined useful life.
In step S2, ARQ receiver 23 abandons response message in response to abandoning the message transmission, and abandons the packet that is sent.
Fig. 3 illustrates the form of the ARQ feedback message in the wireless mobile Internet system respectively to Fig. 5.
Fig. 3 shows selectivity ACK message.
In Fig. 3, suppose that in wireless mobile Internet system media interviews controls (MAC) the layer PDU (MAC PDU) that will comprise 12 sequence blocks send to receiver, and go wrong in the 4th, the 7th, the 8th and the 12 sequence blocks.The ARQ receiver sends the ACK map as the feedback message to ARQ in response to the MAC PDU that is sent.The ACK map will receive and successfully be mapped as 1 and reception made mistakes or fail be mapped as 0.The ARQ transmitter receives the ACK map, and retransmits those pieces that are mapped as 0 sequence number to the ARQ receiver.
Fig. 4 shows cumulative bad ACK message.
When going wrong in the sequence blocks number (BSN) 4,7,8 and 12 at MAC PDU as shown in Figure 3, the ARQ receiver produces the feedback message about the correspondence of ARQ by write down first sequence (BSN1,2 and 3) that does not have wrong continuous blocks that is sent in the feedback message to ARQ.
As shown in Figure 4, the ARQ receiver sends ACK then and notifies the ARQ receiver successfully to receive BSN1,2 and 3, and the ARQ transmitter is retransmitted the piece from the BSN4 of MAC PDU to BSN12.
Fig. 5 shows selectivity and cumulative bad ACK message.
Though owing to only retransmit the piece with mistake, so the selectivity ACK message of Fig. 3 is effectively, the size of data processing time and ACK map is increase all with being a problem.For feedback message, cumulative bad ACK message shown in Figure 4 needs capacity still less and the processing time very fast is provided, but increases the size of data that will retransmit.
In Fig. 5, by adopting the advantage of selectivity ACK message and cumulative bad ACK message, the ARQ receiver comes request repeat by send the ACK feedback message comprise the BSN ( BSN 1,2,3) that successfully receives and the ACK map that remaps from BSN4 to BSN12 to the ARQ transmitter.
Yet, because a series of continuous blocks form PDU, and data in each PDU, occur and send successfully or fail, so the feedback message to ARQ is not effective more than in wireless mobile Internet system.
In other words, success and failure that conventional bitmap type ACK map is shone upon each BSN increase expense thus.
Therefore, in wireless mobile Internet system, need to be used to send to the feedback message of ARQ and do not increase the effective ways of expense.
Summary of the invention
The purpose of this invention is to provide the method that being used in wireless mobile Internet system produces feedback message and reduce expense.
In one aspect of the invention, provide a kind of method that is used for producing to the feedback message of automatic re-send request may (ARQ).In the method, a) record ACK type in first field; B) the last piece sequence number of estimation cumulative bad ACK piece and it is recorded in second field; C) will be at b) in the group number of continuous ACK piece behind the piece sequence number of estimation be recorded in the quantity that the 3rd field is used as the ACK map; D) the starting block sequence number of each ACK map of record in the 4th field; E) by with length and d) in the corresponding length that writes down each ACK map of starting block sequence number.
In another aspect of this invention, provide the method for a kind of generation to the feedback message of automatic re-send request may (ARQ).In the method, a) record ACK type in first field; B) the last piece sequence number of the continuous ACK piece of estimation and it is recorded in second field; C) will be at b) in continuous ACK piece behind the piece sequence number of estimation or the group number of NACK piece be recorded in the quantity that the 3rd field is used as macro block (bulk); D) be provided with and write down the type of each macro block; E) estimation and in the 4th field the length of type of each macro block of record.
At c) in, organize the quantity that macro block is set by selection from the group of macro block with predetermined quantity.
The position of macro block length of group that is assigned to the macro block that has predetermined quantity respectively is all different in each group.
According to the present invention, reduced the expense of conventional ARQ feedback message, notice is carried out effective packet retransmission request.
Description of drawings
Incorporate into and as an illustration the accompanying drawing of the part of book illustrate embodiments of the invention, and and specification one be used from and explain principle of the present invention, wherein:
Fig. 1 is the block diagram of diagram ARQ transmitter and ARQ receiver;
Fig. 2 is the figure of the signal flow of the conventional ARQ method of diagram;
Fig. 3 shows selectivity ACK message;
Fig. 4 shows cumulative bad ACK message;
Fig. 5 shows selectivity cumulative bad ACK message;
Fig. 6 schematically shows and produces ACK or NACK message;
Fig. 7 shows the pattern according to the ACK/NACK of the embodiment of the invention;
Fig. 8 diagram is according to the structure of the ARQ feedback message of the embodiment of the invention;
Fig. 9 diagram is according to the structure of the ACK map of second embodiment of the invention;
Figure 10 diagram is the structure of ACK map according to another embodiment of the present invention;
Figure 11 diagram is the structure of ACK map according to another embodiment of the present invention;
Figure 12 diagram is the structure of ACK map according to another embodiment of the present invention;
Figure 13 diagram is the structure of ACK map according to another embodiment of the present invention;
Figure 14 diagram is the structure of ACK map according to another embodiment of the present invention;
Figure 15 diagram is according to the method that is used to produce the ARQ feedback message of the embodiment of the invention; With
Figure 16 diagram is used to send the flow chart of the method for ARQ feedback message according to another embodiment of the present invention.
Embodiment
In the following detailed description, only realize the mode of optimal mode of the present invention simply by explanation, illustrate and described the preferred embodiments of the present invention.Should be realized that, can make amendment to the present invention aspect tangible at each, and not deviate from the present invention.Therefore, accompanying drawing and explanation are thought illustrative, rather than restrictive.In order to illustrate the present invention, omitted the part that does not have description in the specification, and given identical Reference numeral to part with identical description.
Be used for producing method with describing according to the embodiment of the invention to the feedback message of automatic re-send request may (ARQ).
Fig. 6 is the piece sequence chart that schematic illustrations is used to produce the method for ACK or NACK message.
To control the service data unit (SDU) that the upper strata of (MAC) layer sends from media interviews and be stored in the buffer, and its form with protocol Data Unit (PDU) with a plurality of sequence blocks will be sent.Here, identify each sequence blocks by piece sequence number (BSN).By the control of ARQ receiver, the quantity of the sequence blocks in PDU changed about the time.As shown in Figure 6, the success of each transmission or failure can comprise the sequence blocks of the some of relevant PDU, assert that according to send success and the failure that the correspondence that causes in the sequence blocks sends in wireless mobile Internet system the sequence blocks among the PDU is success or failure.
For example, find successfully to have received three sequence blocks that in PDU 1, comprise, but be received in four sequence blocks failures that comprise among the PDU2.
Fig. 7 diagram is according to the pattern of the ACK/NACK of the embodiment of the invention.
In this pattern, ' 1 ' expression is by the sequence blocks of ACK, and ' 0 ' expression is by the sequence blocks of NACK, and ' 1 ' represents the first cumulative bad ACK tail piece, and ' [1] ' expression second cumulative bad ACK starting block.
In other words, similar in detail to typical cumulative bad ACK, the first cumulative bad ACK message is indicated successfully the BSN that receives, and as the PDU behind the first cumulative bad ACK tail piece during by NACK, the second cumulative bad ACK message is indicated the second cumulative bad ACK starting block.In addition, the length of the second cumulative bad ACK message shows the data that successfully receive.
Therefore, according to embodiments of the invention, the length of the sequence blocks in a BSN and the second cumulative bad ACK message is defined as the ACK map.
For the ACK map is distinguished mutually with the conventional ACK map among Fig. 3 and Fig. 5, below conventional ACK map is called bitmap.
As shown in Figure 7, bitmap needs 4 bytes to make up the ACK/NACK of each piece, and ACK map of the present invention only needs 2 bytes, therefore makes the expense of the feedback message of ARQ lower.
Fig. 8 is the sentence structure in conjunction with the ARQ feedback message of ACK map of the present invention.The ARQ feedback message comprises following field: the connection identifier (CID (CID) that sign MAC connects; LAST in the indication tabulation to the last feedback message of ARQ; The ACK type of indication ACK type; Indication is by the BSN of the last BSN in the sequence blocks of ACK; The ACK map quantity of the quantity of indication ACK map; With the ACK map that provides about the information of the ACK map of correspondence.
Connect the MAC peer unit be defined as in the wireless mobile Internet system between mapping relations.Therefore, CID comprises and is used for connection is exclusively used in reference information to the feedback message of ARQ.Yet, when channel is exclusively used in feedback message to ARQ, do not need CID.
When the feedback message of the correspondence that is used for ARQ was not last, LAST was set to ' 0 ', and when the feedback message to ARQ was last, LAST was set to ' 1 '.
The ACK type is determined the type to the ACK of the feedback message of ARQ.For example, ' 0 ' indication selectivity ACK, ' 1 ' indication cumulative bad ACK, ' 2 ' indication cumulative bad selectivity ACK, and ' 3 ' indication cumulative bad macro block ACK.Cumulative bad macro block ACK is corresponding to the ACK according to the embodiment of the invention.
Last BSN in first sequence blocks that is successfully received is recorded in the BSN field of Fig. 8.
The quantity of ACK map is recorded in the ACK map quantity.The quantity of ACK map can be set to 1 to 4.When the ACK type is set to 1 (, cumulative bad ACK) owing to do not need the ACK map, so the quantity of ACK map is set to 0.
In the ACK of correspondence map field with 16 information that are unit record about the ACK map.
Fig. 9 diagram is according to the structure of the ACK map field of first embodiment of the invention.
ACK map field comprises 11 BSN information and 5 bit length information.The BSN field of ACK map is corresponding to the initial BSN that has by continuous ACK size, corresponding of Length Indication.Length field indication begins to continuously by the piece number of counting till the last BSN of the piece of ACK from the BSN of ACK map.
Simultaneously, the message bit pattern of BIT map field indication ACK and NACK message when the ACK type being provided with 0 (a selectivity ACK) or 2 (cumulative bad-selectivity ACK).
Therefore, by using the ACK map can send the first cumulative bad ACK and the first cumulative bad ACK continuous ACK afterwards effectively.The ACK map comprises beginning BSN and length information, thereby compares the expense that has reduced the feedback message of ARQ with the conventional ACK that uses bitmap.
By using ACK map according to the above embodiment of the present invention to send by the piece of ACK, and by using different ACK maps according to another embodiment of the present invention to define continuous ACK and NACK respectively.
Figure 10 diagram is according to the structure of the ACK map of second embodiment of the invention.
ACK map field comprises the length field of the length field of 3 macro block (mb) type fields, 5 first macro blocks, 4 second macro blocks and the length field of 4 the 3rd macro blocks.
Here, the macro block (mb) type Field Definition whether respectively ACK or NACK first, second and the 3rd macro block.For example, when the macro block (mb) type field was set to ' 010 ', it notified first macro block by NACK, second macro block by ACK and the 3rd macro block by NACK.
The corresponding length field indication of first to the 3rd macro block is included in the piece number in the respective macroblock.
Figure 11 diagram is according to the structure of the ACK map of third embodiment of the invention.
Except equally to the length field of first, second and the 3rd macro block is distributed 4, the similar of the structure among the 3rd embodiment and second embodiment shown in Figure 10.
Figure 12 diagram is according to the structure of the ACK map of fourth embodiment of the invention.
The macro block configuration field is used to indicate the macroblock number in the ACK map.
For example, when macroblock number was 2, the macro block configuration field was set to 0, and equally distributed 6 to the length field of first and second macro blocks.
When macroblock number was 3, the macro block configuration field was set to 1, and equally distributed 4 to the length field of first, second and the 3rd macro block.
Correspondingly, the quantity of macro block can change according to different ACK/NACK patterns with length, disposes the ACK map thus effectively.
Figure 13 diagram is according to the structure of the ACK map of fifth embodiment of the invention.
According to a fifth embodiment of the invention, when ACK piece group and N continuous ACK piece group replace mutually continuously, be arranged alternately NACK macro block and ACK macro block.
Distribute 4 to the length field of ACK macro block and NACK macro block respectively, and be arranged alternately them, dispose continuous ACK and NACK thus effectively.
Figure 14 diagram is according to the structure of the ACK map of sixth embodiment of the invention.
As shown here, macro block configuration field indication macroblock number.
No matter the macro block configuration field is how since at the grammer of ARQ feedback message shown in Figure 8 by BSN addressing cumulative bad ACK, so first macro block by NACK, is by NACK with first macroblock map therefore.
Next macro block tag field is assigned with 1, and whether the macro block below the indication is ACK or NACK thus.Here, ' 0 ' indication is by the macro block of NACK, and ' 1 ' indication is by the macro block of ACK.
Fig. 9 structure of illustrated ACK map in Figure 14 can be used to the ACK field of Fig. 8.In other words, when ACK type=3 (cumulative bad macro block ACK), by using BSN information about the last BSN of the first cumulative bad ACK, Fig. 9 can be in fact identical with cumulative bad macro block ACK type to the ACK map of Figure 14, and by using Fig. 9 can reduce expense to the ACK map of Figure 13.
With cumulative bad macro block ACK type definition is new ACK type according to the embodiment of the invention, but existing cumulative bad ACK type (ACK type=1) can be defined as similar to the cumulative bad macro block ACK type according to the embodiment of the invention.
Figure 15 diagram is used to produce method to the feedback message of ARQ according to the embodiment of the invention.
At step S100, when the receiver reception was stored PDU corresponding to the PDU of MAC ARQ window and in reception buffer, the ARQ transmitter was provided with the ACK type of corresponding PDU, to send corresponding ARQ feedback message.
When step S110 ACK type is set to cumulative bad macro block ACK, in the piece that step S120 estimation is received by the value of the BSN of an ACK.When not being cumulative bad macro block ACK, carrying out conventional ACK and handle by the BSN of an ACK.By the BSN of an ACK corresponding to by the last BSN of the piece of the first continuous ACK.
When defining, estimate the quantity of the ACK map that will in the ARQ window, produce at step S130 by the BSN of the piece of an ACK.The quantity of ACK map corresponding in the ARQ window continuously by the macroblock number of the piece of ACK.
At step S140, the initial BSN of ARQ transmitter estimation ACK map.Estimate initial BSN by the BSN that sequentially detects corresponding to the ACK behind the first cumulative bad ACK.
At step S150, the ARQ transmitter is estimated the length of corresponding ACK map.The BSN of the Length Indication of corresponding ACK map from corresponding ACK map begins the sum of the piece counted till to the end the BSN.Shine upon each length with binary code.
At step S160, produce the ACK map based on the value of estimating, and be mapped in the feedback message.Will be about being included in the feedback message by the information of the piece of ACK, and the piece that will successfully not receive is defined as by the piece of NACK.
At step S170, the feedback message that the ARQ transmitter will comprise ACK map and cumulative bad ACK sends to transmitter and is used for data and sends.
Can in the method for the feedback message that produces Figure 15, comprise and handle (not shown) whether detect the channel of data re-transmitting special-purpose, and the CID value is set when not being exclusively used in the channel of feedback message.
Figure 16 diagram is used to send the flow chart of the method for ARQ feedback message according to another embodiment of the present invention.
Because step S100 is identical with those steps of Figure 15 to the description of S120, so will omit their description.Behind the step S120 of Figure 16, produce macro block ACK map.
At step S200, be arranged on the macroblock number of using in the macro block ACK map.Can come the addressing macroblock number with the position that is used to shine upon, perhaps select macroblock number by variety of option.
About macroblock number is set, for the length of each macro block, each macro block can have different place values.
Macroblock number can be set to more than two, but for convenience of description, it is set to first macro block and second macro block.
At step S210 and S220, the macro block (mb) type of first and second macro blocks is set.Macro block (mb) type determines whether ACK or NACK macro block.Can be set to corresponding to a plurality of macro blocks by using the added field macro block (mb) type, perhaps can be set to alternately ACK or NACK according to predetermined order macro block (mb) type.In addition, the macro block mark can be used for determining the macro block (mb) type of each macro block.
The macro block (mb) type of first macro block is set to NACK, and by using the macro block (mb) type of macro block tag definitions second macro block.
Estimation and the length of shining upon first and second macro blocks.At step S230 and S240, can change the figure place of distributing the length of indicating first and second macro blocks respectively according to macroblock number.
At step S250, produce macro block ACK map, and macro block ACK map comprises the information of quantity, macro block (mb) type and macro block length about macro block.
At step S250, when producing macro block ACK map, with macro block ACK map as feedback message with step S120 estimation, sent by the BSN of ACK.
As mentioned above, by using ARQ transmitter and buffer to realize to be used to send method to the feedback message of ARQ.In other words, according to the embodiment of the invention, the conventional cumulative bad ACK message and the inspection that are stored in the piece in the buffer by use are produced ACK map and macro block ACK map by the bitmap after the last BSN of the piece of ACK.Can use the configuration that conventional cumulative bad and selectivity ACK enable receiver and realize ACK map and macro block ACK map, and it will be appreciated by those skilled in the art that this application.
The program that comprises above-mentioned functions is recorded in the readable medium recording program performing, is used to control the ARQ receiver.
According to above-mentioned configuration of the present invention, reduce the beginning of conventional ARQ feedback message, carry out effective packet retransmission request simultaneously.
Though combine current the present invention who thinks that most realistic and preferred embodiment is described, should be appreciated that to the invention is not restricted to the disclosed embodiments, on the contrary, be intended to contain the various modifications and the equivalent arrangements that comprise in the aim of claims and the scope.
Claims (8)
1. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein one of ACK type indication selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type;
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
If the ACK type is a cumulative bad macro block ACK type, then in the 3rd field, be recorded in after the last piece sequence number successfully or the type of the group of the continuous blocks that unsuccessfully receive;
If the ACK type is a cumulative bad macro block ACK type, the length of then estimation group is with the length of record group in the 4th field; With
Transmission comprises the feedback information of the field of first field to the, four fields.
2. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein the ACK type is indicated one of selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type,
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
The quantity of estimation ACK map is with the quantity of record ACK map in the 3rd field;
If the ACK type is a cumulative bad macro block ACK type, then be recorded in the 4th field of each ACK map after the last piece sequence number by successfully or the type of the group of the continuous blocks that unsuccessfully receive, wherein whether Zu type indicates each group successfully to be received;
If the ACK type is a cumulative bad macro block ACK type, then estimate the length of the group of each ACK map, with the length of record group in the 5th field of each ACK map; With
Transmission comprises the feedback information of the field of first field to the, five fields.
3. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field;
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
Estimate in the end after the piece sequence number by successfully or the group number of the continuous blocks that unsuccessfully receive, in the 3rd field, to write down about organizing the information of number;
The type of record group in the 4th field, wherein whether Zu type indicates each group successfully to be received;
The length of estimation group is with the length of record group in the 5th field; With
Transmission comprises the feedback information of the field of first field to the, five fields.
4. method as claimed in claim 3, wherein the ACK type is indicated one of selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type,
Wherein estimation group number comprises if the ACK type is a cumulative bad macro block ACK type, then estimation group number and
Wherein the type of record group comprises if the ACK type is a cumulative bad macro block ACK type, the type of record group then,
If wherein the ACK type is a cumulative bad macro block ACK type, then estimate the length of group of the type of record group.
5. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein the ACK type is indicated one of selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type,
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
The quantity of estimation ACK map is with the quantity of record ACK map in the 3rd field;
If the ACK type is a cumulative bad macro block ACK type, then estimate in the end after the piece sequence number by successfully or the group number of the continuous blocks that unsuccessfully receive, in the 4th field of each ACK map, to write down information about the group number of each ACK map;
If the ACK type is a cumulative bad macro block ACK type, then in the 5th field of each ACK map, write down the type of the group of each ACK map, wherein whether Zu type indicates each group successfully to be received;
If the ACK type is a cumulative bad macro block ACK type, then estimate the length of the group of each ACK map, with the length of record group in the 6th field of each ACK map; With
Transmission comprises the feedback information of the field of first field to the, six fields.
6. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein one of ACK type indication selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type;
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
If the ACK type is a cumulative bad macro block ACK type, then estimate in the end after the piece sequence number by successfully or the length of the group of the continuous blocks that unsuccessfully receive, with the length of the group that is used for ACK by record successively and the length of group that is used for NACK in the length of the 3rd field record group; With
Transmission comprises the feedback information of first field to the, three fields.
7. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein the ACK type is indicated one of selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type,
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
The quantity of estimation ACK map is with the quantity of record ACK map in the 3rd field;
If the ACK type is a cumulative bad macro block ACK type, then estimate in the end after the piece sequence number by successfully or the length of the group of the continuous blocks that unsuccessfully receive, with the length of the group that is used for ACK by record successively be used for the next length that writes down the group of each ACK map in the 4th field of each ACK map of length of the group of NACK; With
Transmission comprises the feedback information of the field of first field to the, four fields.
8. method that is used to send to the feedback message of automatic re-send request may comprises:
Record ACK type in first field, wherein one of ACK type indication selectivity ACK type, cumulative bad ACK type, cumulative bad-selectivity ACK type and cumulative bad macro block ACK type;
The last piece sequence number of the continuous blocks that estimation is successfully received is with the last piece sequence number of record in second field;
If the ACK type is a cumulative bad macro block ACK type, then estimate in the end after the piece sequence number successfully or the group number of the continuous blocks that unsuccessfully receive, with in the 3rd field about organizing the information of number;
If the ACK type is a cumulative bad macro block ACK type, the length that begins to organize of then estimation group is with the length of recording start group in the 4th field;
If the ACK type is cumulative bad macro block ACK type, the then type of next group of recording start group in the 5th field;
If the ACK type is a cumulative bad macro block ACK type, then estimate the length of next group, with the length of next group of record in the 6th field;
If the ACK type is a cumulative bad macro block ACK type, then in the 7th field, write down the type of next group of next group; With
Transmission comprises the feedback information of the field of first field to the, seven fields.
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| KR1020040113343 | 2004-12-27 | ||
| KR20040113343A KR100635012B1 (en) | 2003-12-29 | 2004-12-27 | Method for creating feedback message for ARQ in mobile communication system |
| PCT/KR2004/003510 WO2005064839A1 (en) | 2003-12-29 | 2004-12-29 | Method for creating feedback message for arq in mobile communication system |
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| CN1914845B true CN1914845B (en) | 2010-10-06 |
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| CN2004800412256A Active CN1914845B (en) | 2003-12-29 | 2004-12-29 | Method for creating feedback message for ARQ in mobile communication system |
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| CN2004800412152A Active CN1914844B (en) | 2003-12-29 | 2004-12-29 | Method for creating feedback message for ARQ in mobile communication system and computer readable medium recorded program thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5361828B2 (en) | 2013-12-04 |
| KR100684307B1 (en) | 2007-02-16 |
| DE602004021029D1 (en) | 2009-06-18 |
| JP2011024238A (en) | 2011-02-03 |
| CN1914844A (en) | 2007-02-14 |
| KR20070015354A (en) | 2007-02-02 |
| KR100705505B1 (en) | 2007-04-09 |
| KR100635012B1 (en) | 2006-10-16 |
| KR20050069902A (en) | 2005-07-05 |
| CN1914845A (en) | 2007-02-14 |
| KR20050069903A (en) | 2005-07-05 |
| ATE431024T1 (en) | 2009-05-15 |
| CN1914844B (en) | 2012-06-20 |
| HK1094842A1 (en) | 2007-04-13 |
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