CN101043299A - ACK/NACK method - Google Patents
ACK/NACK method Download PDFInfo
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- CN101043299A CN101043299A CNA2006100671957A CN200610067195A CN101043299A CN 101043299 A CN101043299 A CN 101043299A CN A2006100671957 A CNA2006100671957 A CN A2006100671957A CN 200610067195 A CN200610067195 A CN 200610067195A CN 101043299 A CN101043299 A CN 101043299A
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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
Abstract
The invention discloses a ACK/NACK method, which is used to control the receiving state of the mobile terminal MS feed wireless link control RLC/ media interface control MAC data block, that includes: MS judges the upgoing existing the temporary block flow TBF or not, if yes, by upgoing RLC/MAC data block takes the short affirmance ACK/ non-affirmance NACK information, feeds the receiving state of downgoing RLC/MAC data block. The ACK/NACK method provided by the invention, has the instaneity of the method of event driving ACK/NACK, if the upgoing TBF exists, it's no need to distribute the single upgoing wireless block for the ACK/NACK information, and improves the available bandwidth of upgoing TBF.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of portable terminal feedback Radio Link control (Radio Link Control, RLC)/medium access control (Media Access Control, MAC) data block receives the affirmation (Acknowledge of situation, be called for short ACK)/non-affirmation (Not Acknowledge is called for short NACK) method.
Background technology
Along with scientific and technological progress, people are also improving constantly the requirement of mobile communication business and quality.So demand that proposition seamlessly transits to the 3G (Third Generation) Moblie technology, major technique to the evolution of 3G has GPRS (General Packet Radio Service, GPRS), Enhanced Data rates for GSM Evolution (Enhanced Data rates for GSM Evolution, EDGE) and high speed voice circuit switched data (High Speech Circuit Switched Data, HSCSD) etc., the emphasis of research concentrates on and utilizes limited frequency spectrum resources raising transmission rate and reduce propagation delay time.
GPRS is the packet data exchanged technology of introducing in the GSM network.It is superimposed on the gsm system, has prolonged the useful life of GSM, and it is based on the forwarding of packet data package and the statistic multiplexing of channel, thereby the data service that existing GSM is provided has leaped more than the 100Kbps from 9.6Kbps first.Because GPRS still adopts the Guassian Minimum Shift Keying GMSK the same with GSM (Gaussian Minimum ShiftKeying, GMSK) modulation system, transmission rate can't reach the 2Mbps of 3G business need, in order fully to satisfy the bandwidth demand that following radio multimedium is used, EDGE provides a transitional scheme from GPRS to the 3G (Third Generation) Moblie.
EDGE is a kind of data enhancement mode mobile communication technology based on the GSM/GPRS network, is called the 2.75G technology by people again usually.This technology mainly is to use broadband service, can allow the network of use 800,900,1800,1900MHz frequency range that the partial function of 3G (Third Generation) Moblie network is provided, and its major technique has:
(8Phase Shift Keying, 8PSK) modulation realize carrying 3 bits (bit) data on each modulation signal, and GMSK can only be carried the data of 1 bit to (1) 8 phase shift keying under kindred circumstances, so maximum transmission rate reaches three times of GPRS.In mobile environment, can stablize and reach 384Kbps, in static situation even can reach the high speed of 2Mbps.
Modulate and coded system, i.e. MCS1～9 for (2) 9 kinds.Wherein MCS1～4 have kept the GMSK modulating mode, and the 8PSK modulation is adopted in MCS5～9, and (Modulationand Coding Scheme MCS) has defined different data block sizes and channel redundancy coding to the different modulating coded system.
(3) link adaptation mechanism, promptly these nine kinds of coded systems of MCS1～9 be divided into 3 groups (FamilyA (and MCS-3, MCS-6, MCS-8, MCS-9), Family B (MCS-2, MCS-5, MCS-7) and Family C (MCS-1, MCS-4)).In communication process, coded system can change on the same group.Select coded system according to carrier/interface ratio during data re-transmission, when guaranteeing speech quality, the use of maximum Radio Resource.
(4) steadily increase redundancy (Incremental redundancy) transmission means, in the GPRS transfer of data, if error code appears in data block, this data block will retransmit, and will be correct until transmission.And in the EDGE technology, introduced the incremental redundancy mode, it be automatic repeat requests (Automatic Repeat reQuest, ARQ) and forward error correction (Forward Error Correction, FEC) combination of two kinds of technology.Data block adopts different punching patterns (Punching scheme) when retransmitting, and the result in that receiving terminal will transmit at every turn effectively recombinates, and recovers legacy data, thereby has reduced the number of times that retransmits, and has improved the efficient of transmission.
(5) size of RLC window is regulated automatically.The size of RLC window is that speed with GPRS transmission is complementary and fixing in the gprs system.Because EDGE provides higher message transmission rate, need to increase the size of RLC window accordingly.Because EDGE has 9 kinds of different channel speeds, the size of RLC window need adapt to different coded systems, regulates automatically again.This characteristic has also improved the efficient of EDGE transfer of data.
In the wireless resource allocation mode, two kinds of different mechanism are used in uplink and downlink.(Temporary Block Flow TBF) is travelling carriage (Mobile Station, interim connection MS) and between the network, only just existence in the process of data forwarding to Temporary Block Flow.It is supported in logic link control (Logic Link Control, LLC) the unidirectional forwarding of Packet Data Unit on the grouping physical channel.One TBF can (Packet Data Channel PDCH) goes up the use Radio Resource at one or more Packet Data Channels.(Temporary Flow Identity, TFI), in the TBF of Chu Xianing, the TFI of each TBF is different at the same time for each TBF has distributed the Temporary Block Flow indication for network.The time slot of distributing to GPRS is called PDCH, and a plurality of time slots can be combined as the PDCH group.The PDCH that network uses for the MS assignment by control information.On the descending PDCH that distributes, MS is by detecting the ownership that TFI discerns this TBF.
High-rise each LLC frame is made up of a series of RLC/MAC pieces, and every has corresponding piece sequence number (Block Sequence Number BSN), and transmits according to the order of BSN.Radio block is the base unit of allocation of radio resources and wireless transmission, and each radio block is made up of 4 time slots, and lays respectively at 4 continuous time division multiple accesses (Time Division Multiple Access, TDMA) frame.The transmission of RLC/MAC piece is carried by radio block, and because of the difference of coded system, 1 radio block can carry 2 RLC/MAC pieces at most.In order to optimize the transfer of data under the packet switched mode, the RLC/MAC transmission of data blocks is subjected to the control of ARQ mechanism under the RLC/MAC affirmation mode, by the information of poll by the RLC/MAC data block of MS report related downlink situation and success reception.Polling mechanism is only applicable to downlink data transmission, and (Packet Control Unit, PCU) control issues polling request by packet control unit.Transmitting terminal comes addressing RLC/MAC data block with send window, and in send window, the RLC/MAC data block is expressed as " not sending ", " wait acknowledge ", " the correct reception " and " mistake reception " state respectively.If a RLC piece was not sent out, then be identified as " not sending " state,, this piece is designated " wait acknowledge " state in case being sent out.Can know after the ACK/NACK message that receives downlink grouped whether the piece that sends previously correctly receives, and corresponding renewal send window.If data block is correctly received, then this piece is identified as " the correct reception " state (being ACK); If receive wrong or lose, then this piece is identified as wrong accepting state (being NACK); If do not receive response message, then keep the wait acknowledge state.After send window upgrades, can slide into the position of the data block of first dont answer.
The frequency of poll can be adjusted according to the situation self adaptation of Radio Link, and (Block ErrorRatio BLER) raises, and poll frequency increases when wrong piece rate; Otherwise poll frequency reduces.Poll is also considered the scheduling frequency of RLC/MAC data block.1 figure is that the hypothesis polling interval is the polling procedure of 12RLC/MAC data block (Block) under the ARQ mechanism, specifically comprises:
The network side rlc/mac layer sends the 1st descending RLC/MAC data block to MS;
The 2nd descending RLC/MAC data block receives mistake;
When sending to the 12nd descending RLC/MAC data block, carry the ACK/NACK poll;
MS returns poll response (for EGPRS): promptly downlink grouped RLC/MAC data block is reported the ACK/NACK report;
Network side is according to the ACK/NACK that returns report, retransmits the wrong/RLC/MAC data block of losing.
20ms among Fig. 1 represents the transmission time of a RLC/MAC piece.
Because the rlc layer of MS need be collected whole RLC/MAC pieces that the LLC frame comprised and could organize to wrap and pass to high level.Network by poll after the ACK/NACK report of MS response can know just whether MS correctly receives all descending RLC/MAC data blocks.Because of poll is to produce at interval, when lost block occurring or when wrong, the piece that network can not be known at once and retransmit wrong piece or lose just can retransmit after having only by the time poll and MS to report the ACK/NACK report.In actual conditions, PCU knows descending wrong piece or loses the time that piece needs about 150～250ms, so just produces bigger transmission delay.
(GSM EDGE Radio Acesss Network GERAN) in the evolution is feedback data piece reception condition to GSM EDGE wireless access network, and the technology that adopts has at present: methods such as poll, event-driven ACK/NACK, quick A CK/NACK, minimizing transmission intercal.
Prior art one:
For reducing the transmission delay that the polling interval causes, prior art one proposes based on event-driven ACK/NACK method.Because of the RLC/MAC piece receives according to the BSN order, when BSN order error list is shown with the RLC/MAC lost block, this moment, MS can initiatively report the ACK/NACK report, and PCU can know at once that erroneous block retransmits.Perhaps a certain RLC/MAC build can correctly solve, but this RLC/MAC blocks of data partly makes mistakes, and this moment, MS also can initiatively report the ACK/NACK report, and PCU also can retransmit at once.(Uplink State Flag, USF) Zhi Shi ascending resource can reduce the transmission delay of waiting for that re-transmission causes based on event driven ACK/NACK to rely on the uplink state of network side to identify.Network side is by the balance to upstream data amount and ACK/NACK size of message, and control event drives the frequency of ACK/NACK report.Fig. 2 is based on the process of event-driven ACK/NACK, specifically comprises:
The network side rlc/mac layer sends descending RLC/MAC data block to MS;
Some descending RLC/MAC data blocks receive mistake;
MS (for EGPRS) initiatively reports based on event driven ACK/NAKC report the grouping downlink data block;
The network side rlc/mac layer retransmits immediately and receives wrong RLC/MAC data block;
When sending to the 12nd RLC/MAC data block, carry the ACK/NACK poll;
MS returns poll response (for EGPRS): promptly the downlink grouped data piece is reported the ACK/NACK report of poll.
Among Fig. 2, adopting gap periods is conventional poll the replenishing as event-driven ACK/NACK report of 12 RLC/MAC data blocks.
In above-mentioned prior art one, when up TBF transfer of data is arranged on the up channel of descending correspondence, can utilize the idle bit (spare bits) in the RLC/MAC build to come feeding back ACK/nack message.
Prior art one shortcoming is as follows:
(1) because the spare bits of 2bit is only arranged in the build of the up RLC/MAC data block of GPRS, in the build of the up RLC/MAC data block of EGPRS, three kinds of different builds are arranged, its spare bits is respectively 8bit, 12bit, 2bit.These spare bits limited length, the RLC number of blocks that receives when needs feedbacks more for a long time, the spare bits in the build of RLC/MAC data block is not enough to represent ACK/NACK information.
(2) if complete ACK/NACK message of event-driven report needs a up-link wireless piece, can take more ascending resource.
Prior art two:
Adopt quick A CK/NACK mechanism replenishing as polling mechanism.The ACK/NACK report is transmitted in the part upstream data space that quick A CK/NACK takies in the up RLC/MAC data block, only needs 1 short bit map (short bitmap) just can represent the reception condition of corresponding descending RLC/MAC data block.Because of 1 radio block can carry 2 RLC/MAC pieces (MCS7-9) at most, so need corresponding 1 radio block among the short bitmap with 2bit.The concrete implication of quick A CK/NACK short bitmap is as shown in table 1 below:
Table 1
| 00 | -build mistake-build is correct, but it is correct that TFI does not belong to active user-build, TFI is also correct, but data division decoding error (situation that comprises |
| 01 | Build is correct, and TFI is also correct, but the 1st RLC blocks of data partial decoding of h mistake, the 2nd RLC blocks of data partial decoding of h is correct |
| 10 | Build is correct, and TFI is also correct, but the 1st RLC blocks of data partial decoding of h is correct, the 2nd RLC blocks of data partial decoding of h mistake |
| 11 | Build is correct, and TFI is also correct, and all RLC block data division is all decoded correctly |
When having many TBF, what short bitmap represented is the RLC/MAC piece of all TBF, and when the descending RLC/MAC piece that correctly receives has the TFI value of appointment, bit corresponding among the short bitmap will be set to 1.
Suppose that MS has polling request at the descending radio block that moment Tx receives, then the 1st couple of bit among the short bitmap represents the reception condition of radio block on the 1st down channel that Tx distributes constantly, the 2nd couple of bit represents the reception condition of radio block on the 2nd down channel that Tx distributes constantly, analogizes so backward.If also have remaining bit space among the short bitmap, following a pair of bit can represent the reception condition of radio block on the 1st down channel that Tx-1 (being the moment before the 20ms) constantly distributes, analogizes so backward.Fig. 3 has illustrated the operating process of quick A CK/NACK report, is specially:
Suppose that the descending time slot that TBF1 distributes is TS0,1,2,3, Tx MS constantly receives polling request at time slot TS2, and MS sends data at corresponding ascending time slot TS2, and this moment, these data had the ACK/NACK report information, i.e. short bitmap.Among Fig. 3, label be 2bit (11) the expression Tx that lives of 1 ellipse circle constantly the radio block on the descending time slot TS0 correctly receive, the TFI that does not have self in the radio block on the 2nd couple of bit (00) the expression descending time slot TS1, radio block on the 3rd couple of bit (11) the expression descending time slot TS2 correctly receives, and the radio block on the 4th couple of bit (00) the expression descending time slot TS3 receives mistake.Label is that 2bit (10) the expression Tx-1 that lives of 2 the ellipse circle data division decoding of the 1st RLC/MAC piece of the radio block carrying on when 20ms (preceding) descending time slot TS2 constantly is correct, the data division decoding error of the 2nd RLC/MAC piece.
The structure of the up RLC/MAC data block of EGPRS of band short bitmap information is shown in Figure 4, and it keeps the structure of former RLC/MAC data block constant, and the length of design short bitmap is 4 bytes, takies last 4 bytes of RLC/MAC data block.Whether carry short bitmap information in order to distinguish the RLC/MAC data division, need utilize that the 1bit among the spare bits indicates in the up RLC/MAC data block head.
The shortcoming of prior art two is as follows:
(1) utilance of short bitmap is not high in the quick A CK/NACK method.Multiplexing other MS on the down channel of a certain MS, what have part bit report among the short bitmap is not the RLC/MAC piece of self, the descending reception condition that is these bit feedacks and this MS is irrelevant, causes the waste of shortbitmap and ascending wireless resource.When some moment, some channel coding method was CS1-4 or MCS1-6,1 RLC piece of per 1 radio block carrying did not need 2bit to represent the reception condition of 1 RLC piece, causes the waste of short bitmap and ascending wireless resource this moment yet.
(2) quick A CK/NACK must be corresponding the scope of could the be clear and definite represented RLC/MAC piece of polling request; And the short bitmap of 32bit length can feed back 16 radio blocks at most.When descending distribution during than multichannel, just need network side frequently to initiate polling request, make the up short bitmap information of frequently carrying.For example: distribute 8 down channels, short bitmap is the reception condition of 2 block periods of expression at most, be that per 2 block periods just need to initiate polls, uply just need carry short bitmap information, cause the available bandwidth reduction of up TBF every 1 piece.
Summary of the invention
The invention provides a kind of ACK/NACK method, send complete ACK/NACK message separately and take the more problem of ascending resource in order to solve the employing event-driven ACK/NACK that exists in the prior art, and solve and do not adopt short bitmap utilance among the quick A CK/NACK high and take the problem of more upstream bandwidth.
The inventive method comprises:
A, MS judge the up Temporary Block Flow TBF that whether has, if, execution in step B;
B, carry the non-affirmation nack message of the short ACK/ of affirmation by up RLC/MAC data block, feeding back downlink RLC/MAC data block receives situation.
According to said method of the present invention, when MS judge descending RLC/MAC data block receive wrong/lose, when perhaps the report cycle of ACK/NACK report arrives, carry out described steps A.
According to said method of the present invention, when carrying described short ACK/NACK information in the up RLC/MAC data block, use the idle bit in the data block head to carry flag information;
The network side rlc/mac layer obtains the described short ACK/NACK information that it carries according to the flag information in the up RLC/MAC data block.
According to said method of the present invention, in the described steps A, if judge the up TBF of not having, then described MS reported event drives the ACK/NACK report, and feeding back downlink RLC/MAC data block receives situation.
According to said method of the present invention, also comprise: the network side rlc/mac layer cycle sends polling request to described MS;
After MS receives described polling request, return poll response ACK/NACK report.
Among the described step B, several bytes that take up RLC/MAC data block least significant end are carried described short ACK/NACK information.
At least comprise in the described short ACK/NACK information:
The starting block sequence number of the descending RLC/MAC data block of feedback reception situation and reception bitmap block;
Described reception bitmap block indicates the reception situation that the piece sequence number is greater than or less than a plurality of descending RLC/MAC data block of described starting block sequence number according to the order of sequence.
Also comprise interim piece indication TFI in the described short ACK/NACK information.
Described reception bitmap block is made up of a string binary variable;
When variate-value is " 0 ", represent that the descending RLC/MAC data block of this piece sequence number receives mistake;
When variate-value is " 1 ", represent that the descending RLC/MAC data block of this piece sequence number receives correct.
Described starting block sequence number is any piece sequence number that does not report the reception situation in the RLC/MAC data block that receives of MS; Described reception bitmap block indicates bitmap lengths.
For general packet radio service gprs, described starting block sequence number is the largest block sequence number in the descending RLC/MAC data block that receives of terminal; Described reception bitmap block length is that (the individual binary variable of L * 8-12) is used for indicating according to the order of sequence (L * 8-12) the reception situation of individual descending RLC/MAC data block of piece sequence number less than described starting block sequence number; Wherein, L is the shared eight bit word joint number of described short ACK/NACK information.
For strengthening GPRS EGPRS, described starting block sequence number is the smallest blocks sequence number in the incorrect descending RLC/MAC data block that receives of terminal; Described reception bitmap block length is ((L-2) * 8) individual binary variable, is used for indicating according to the order of sequence the reception situation of piece sequence number greater than ((L-2) * 8) individual descending RLC/MAC data block of described starting block sequence number; Wherein, L is the shared eight bit word joint number of described short ACK/NACK information.
According to said method of the present invention, described TFI takies 5 bits; For GPRS, described starting block sequence number takies 7 bits; For EGPRS, described starting block sequence number takies 11 bits.
Beneficial effect of the present invention is as follows:
(1) ACK/NACK method provided by the invention has the instantaneity of event-driven ACK/NACK method, and needn't be the independent up-link wireless piece of ACK/NACK distribution of messages when up TBF exists, and improves the available bandwidth of this up TBF.
(2) reception condition of the short ACK/NACK information among the present invention (Short Ack/Nack Message) the descending RLC/MAC piece that only feedback is relevant with MS self; That is: MS by the indication of the Temporary Block Flow in the downlink data build (Temporary Flow Identity, TFI) field judges which RLC/MAC piece is relevant with self, reports the reception condition of the downlink data block that sends to oneself; And the reception bitmap block (bitmap) of each RLC/MAC piece is only used 1bit, and the utilance that receives bitmap block reaches 100%, far above the utilance of the short bitmap among the quick A CK/NACK.
(3) Short ACK/NACK Message adopts TFI+ starting block sequence number+reception bitmap block mode among the present invention, does not need corresponding polling request just can clearly represent the scope of the RLC/MAC piece that feeds back; Therefore uplink data block needn't frequently be carried Short ACK/NACK Message information, improves the available bandwidth of up TBF.
Description of drawings
Fig. 1 is the conventional polling procedure of 12 RLC/MAC pieces for polling interval in the prior art;
Fig. 2 is based on event driven ACK/NACK process in the prior art;
Fig. 3 is a quick A CK/NACK reporting process in the prior art;
Fig. 4 is for carrying the up RLC/MAC block data structure of the EGPRS figure of short bit map information in the prior art;
Fig. 5 is an ACK/NACK process provided by the invention;
Fig. 6 is the up RLC/MAC block data structure figure that the present invention carries short ACK/NACK information when being applied to GPRS;
Fig. 7 is the up RLC/MAC block data structure figure that the present invention carries short ACK/NACK information when being applied to EGPRS.
Embodiment
Based on event-driven ACK/NACK, when promptly MS found the wrong piece of descending appearance that receives or loses piece, the available ascending resource according to network side USF indication initiatively reported ACK/NACK information to ACK/NACK trigger mechanism among the present invention immediately with of the prior art.The present invention and of the prior artly be: when the up TBF of having based on event-driven ACK/NACK difference, do not use independent complete ACK/NACK report, but utilize the sub-fraction data space in the up RLC/MAC data block to carry short ACK/NACK information, the situation of the descending RLC/MAC data block that feedback receives.ACK/NACK process of the present invention comprises as shown in Figure 5:
The network side rlc/mac layer sends descending RLC/MAC data block to MS;
Some descending RLC/MAC data blocks receive mistake;
MS carries based on the short ACK/NACK information of Event triggered by up RLC/MAC data block and returns the ACK/NAKC report to network side;
The network side rlc/mac layer retransmits immediately and receives wrong RLC/MAC data block;
When sending to the 12nd RLC/MAC data block, carry the ACK/NACK poll;
MS returns poll response: promptly the downlink grouped data piece is reported the ACK/NACK report of poll.
From Fig. 5 flow process as can be known, in a single day MS finds that the downlink data block reception makes mistakes, and just takies the fraction data space and carries short ACK/NACK information in up RLC/MAC data block.Also adopting gap periods among Fig. 5 is conventional poll the replenishing as ACK/NACK of the present invention of 12 RLC/MAC pieces.
The length of short ACK/NACK message part is L eight bit byte (Octet).The value of L can be adjusted according to reception condition.
The GPRS, EGPRS upstream data block structure that carry short ACK/NACK information are respectively as Fig. 6, shown in Figure 7.
In short ACK/NACK information, comprise at least: starting block sequence number and reception bitmap block.For single TBF, in short ACK/NACK information, needn't comprise TFI; And,, therefore, need in short ACK/NACK information, comprise corresponding TFI owing to need indicate the descending TBF that reports with TFI for many TBF, in order to corresponding with descending TBF.
Because of TFI among GPRS and the EGPRS is 5bit, therefore, the TFI in the short ACK/NACK information also is made as 5bit.
The selection principle of starting block is set: make the information that reports to feed back the piece that current reception makes mistakes as far as possible, and can promote send window and move forward.
For GPRS, because there is sufficiently long bitmap to indicate the reception condition of whole windows, starting block sequence number can be set at the BSN of the highest RLC/MAC piece of piece sequence number that MS receives.Because of the BSN among the GPRS is 7bit, so the starting block sequence number in the short ACK/NACK information of GPRS correspondence also is 7bit.
For EGPRS, the starting block sequence number can be set at BSN or the BSN+1 that MS does not have the RLC piece of the correct sequence number minimum that receives.Because of the BSN among the EGPRS is 11bit, so the starting block sequence number in the short ACK/NACK information of GPRS correspondence also is 11bit.
Receiving bitmap block can be made up of a string binary variable.Indicate the reception situation that the piece sequence number is greater than or less than a plurality of descending RLC/MAC data block of described starting block sequence number according to the order of sequence according to the starting block sequence number of setting.
For GPRS, if the starting block sequence number is set at the BSN of the highest RLC/MAC piece of piece sequence number that MS receives, each variable that then receives in the bitmap block begins forward (being the direction that BSN is lower than the starting block sequence number) mapping (reception situation of individual RLC/MAC piece of L * 8-12) from the starting block sequence number.
For EGPRS, if the starting block sequence number is set at BSN or BSN+1 that MS does not have the RLC piece of the correct sequence number minimum that receives, each variable that then receives in the bitmap block begins backward the reception situation that (being the direction that BSN is higher than the starting block sequence number) shines upon ((L-2) * 8) individual RLC/MAC piece from the starting block sequence number.
For example, be provided with when variate-value is " 0 ", represent that the descending RLC/MAC data block of this piece sequence number receives mistake; When variate-value is " 1 ", represent that the descending RLC/MAC data block of this piece sequence number receives correct.
Receive one of the value of each location variable in the bitmap block and the corresponding relation of RLC/MAC data block reception situation (supposing to report greater than the direction of starting block sequence number) as shown in table 2 below by BSN:
Table 2
| 1 | 0 | 0 | 1 |
| The RLC/MAC piece of starting block sequence number correspondence receives correct | The RLC/MAC piece of (starting block sequence number+1) receives mistake | The RLC/MAC piece of (starting block sequence number+2) receives mistake | The RLC/MAC piece of (starting block sequence number+3) receives correct |
Receive the value of each location variable in the bitmap block and two (the supposing to report less than the direction of starting block sequence number) as shown in table 3 below that the RLC/MAC data block receives situational relationship by BSN:
Table 3
| 1 | 0 | 0 | 1 |
| The RLC/MAC piece of starting block sequence number correspondence receives correct | The RLC/MAC piece of (starting block sequence number-1) receives mistake | The RLC/MAC piece of (starting block sequence number-2) receives mistake | The RLC/MAC piece of (starting block sequence number-3) receives correct |
The position of each field can be set in the short ACK/NACK information of the present invention flexibly, shown in following table 4, table 5:
Table 4
Bit
8 7 6 5 4 3 2 1
Octets 1Octets 2…Octets L
| The starting block sequence number | TFI | |
| Receive bitmap block | The starting block sequence number | |
| Receive bitmap | ||
Table 5
Bit
8 7 6 5 4 3 2 1
Octets 1Octets 2…Octets L
| The starting block sequence number | TFI |
| The starting block sequence number | |
| Receive bitmap | |
In said method provided by the invention, if up RLC/MAC data block has been carried short ACK/NACK information, need carry flag information with 1bit at up RLC/MAC data block head spare bits, indicate this data block and have short ACK/NACK information, so that the network side rlc/mac layer is according to the flag information in this up RLC/MAC data block, obtain the described short ACK/NACK information that it carries, and learn the reception situation of MS corresponding downstream RLC/MAC according to short ACK/NACK information.
In sum, ACK/NACK method provided by the invention has the instantaneity of event-driven ACK/NACK method, and needn't be the independent up-link wireless piece of ACK/NACK distribution of messages when up TBF exists, and improves the available bandwidth of this up TBF.
Short ACK/NACK information among the present invention is only fed back the reception condition of the descending RLC/MAC piece relevant with MS self; That is: MS judges that by TFI field in the downlink data build which RLC/MAC piece is relevant with self, and only report sends to the reception condition of the downlink data block of oneself; And the reception bitmap block (bitmap) of each RLC/MAC piece is only used 1bit, and the utilance that receives bitmap block reaches 100%, far above the utilance of the short bitmap among the quick A CK/NACK.
The short-and-medium ACK/NACK information of the present invention adopts TFI+ starting block sequence number+reception bitmap block mode, does not need corresponding polling request just can clearly represent the scope of the RLC/MAC piece that feeds back; Therefore uplink data block needn't frequently be carried Short ACK/NACK Message information, improves the available bandwidth of up TBF.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1, a kind of ACK/NACK method is applied to the reception situation that mobile station MS feedback Radio Link is controlled RLC/ media access control MAC data block, it is characterized in that, comprising:
A, MS judge the up Temporary Block Flow TBF that whether has, if, execution in step B;
B, carry the non-affirmation nack message of the short ACK/ of affirmation by up RLC/MAC data block, feeding back downlink RLC/MAC data block receives situation.
2, the method for claim 1 is characterized in that, when MS judge descending RLC/MAC data block receive wrong/lose, when perhaps the report cycle of ACK/NACK report arrives, carry out described steps A.
3, the method for claim 1 is characterized in that, when carrying described short ACK/NACK information in the up RLC/MAC data block, uses the idle bit in the data block head to carry flag information;
The network side rlc/mac layer obtains the described short ACK/NACK information that it carries according to the flag information in the up RLC/MAC data block.
4, method as claimed in claim 3 is characterized in that, in the described steps A, if judge the up TBF of not having, then described MS reported event drives the ACK/NACK report, and feeding back downlink RLC/MAC data block receives situation.
5, method as claimed in claim 3 is characterized in that, also comprises: the network side rlc/mac layer cycle sends polling request to described MS;
After MS receives described polling request, return poll response ACK/NACK report.
As the described method of any claim of claim 1-5, it is characterized in that 6, among the described step B, several bytes that take up RLC/MAC data block least significant end are carried described short ACK/NACK information.
7, the method for claim 1 is characterized in that, comprises at least in the described short ACK/NACK information:
The starting block sequence number of the descending RLC/MAC data block of feedback reception situation and reception bitmap block;
Described reception bitmap block indicates the reception situation that the piece sequence number is greater than or less than a plurality of descending RLC/MAC data block of described starting block sequence number according to the order of sequence.
8, method as claimed in claim 7 is characterized in that, also comprises interim piece indication TFI in the described short ACK/NACK information.
As claim 7 or 8 described methods, it is characterized in that 9, described reception bitmap block is made up of a string binary variable;
When variate-value is " 0 ", represent that the descending RLC/MAC data block of this piece sequence number receives mistake;
When variate-value is " 1 ", represent that the descending RLC/MAC data block of this piece sequence number receives correct.
10, method as claimed in claim 9 is characterized in that, described starting block sequence number is any piece sequence number that does not report the reception situation in the RLC/MAC data block that receives of MS; Described reception bitmap block indicates bitmap lengths.
11, method as claimed in claim 10 is characterized in that, for general packet radio service gprs, described starting block sequence number is the largest block sequence number in the descending RLC/MAC data block that receives of terminal; Described reception bitmap block length is that (the individual binary variable of L * 8-12) is used for indicating according to the order of sequence (L * 8-12) the reception situation of individual descending RLC/MAC data block of piece sequence number less than described starting block sequence number; Wherein, L is the shared eight bit word joint number of described short ACK/NACK information.
12, method as claimed in claim 10 is characterized in that, for strengthening GPRS EGPRS, described starting block sequence number is the smallest blocks sequence number in the incorrect descending RLC/MAC data block that receives of terminal; Described reception bitmap block length is ((L-2) * 8) individual binary variable, is used for indicating according to the order of sequence the reception situation of piece sequence number greater than ((L-2) * 8) individual descending RLC/MAC data block of described starting block sequence number; Wherein, L is the shared eight bit word joint number of described short ACK/NACK information.
As claim 11 or 12 described methods, it is characterized in that 13, described TFI takies 5 bits; For GPRS, described starting block sequence number takies 7 bits; For EGPRS, described starting block sequence number takies 11 bits.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2006100671957A CN101043299B (en) | 2006-04-05 | 2006-04-05 | ACK/NACK method |
| PCT/CN2007/001111 WO2007112698A1 (en) | 2006-04-05 | 2007-04-05 | A method and apparatus for sending ack/nack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100671957A CN101043299B (en) | 2006-04-05 | 2006-04-05 | ACK/NACK method |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI106760B (en) * | 1999-03-03 | 2001-03-30 | Nokia Oyj | Method and device for retransmitting data packets |
| US6901060B1 (en) * | 2000-05-17 | 2005-05-31 | Nokia Corporation | Method and apparatus for multiplexing a plurality of data connections onto one temporary block flow |
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-
2006
- 2006-04-05 CN CN2006100671957A patent/CN101043299B/en active Active
-
2007
- 2007-04-05 WO PCT/CN2007/001111 patent/WO2007112698A1/en active Application Filing
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| CN101043299B (en) | 2010-08-25 |
| WO2007112698A1 (en) | 2007-10-11 |
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