CN101399645B - ACK/NACK scheduling method and scheduling device for LTE-TDD system - Google Patents
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Abstract
The invention discloses a method for scheduling ACK/NACK for an LTE-TDD system. The method comprises the following steps: a network side makes statistics on distributing condition of UE downlink service data of each user equipment, for each UE, monitoring is carried out on that whether the downlink service data is scheduled or not; after schedule of certain UE downlink service data is determined, message is transmitted to the UE to inform a channel feeding back ACK/NACK; and the UE feeds back ACK/NACK on the corresponding channel according to the received message. The invention provides an ACK/NACK feedback proposal for the LTE-TDD system to ensure effective transmission of ACK/NACK under the circumstance that downlink sub-frame is more than uplink sub-frame. Corresponding to the method, the invention also provides an ACK/NACK dispatcher for the LTE-TDD system.
Description
The application requires to submit to Patent Office of the People's Republic of China, application number to be the priority of 200710164202.X denomination of invention for the one Chinese patent application of " ACK/NACK of LTE-TDD system dispatching method and scheduler " on September 30th, 2007, and its full content combines in this application by reference.
Technical field
The present invention relates to LTE (the Long Time Evolution of mobile communication; Long Term Evolution) technical field; Relate in particular to a kind of LTE-TDD (Time Division Duplex; Time division duplex) dispatching method and the scheduler of system uplink ACK (ACKnowledge, confirmation)/NACK (Non-ACKnowledge, nonacknowledgement information).
Background technology
The LTE system supports two kinds of frame structures.First kind frame structure is applicable to TDD and FDD (Frequency Division Duplex, FDD) system, and such frame structure is referring to Fig. 1; Such radio frames frame length is 10ms, is made up of 20 time slots, and each slot length is 0.5ms; As shown in the figure, each time slot is labeled as 0 to 19.Two continuous time slot are defined as a sub-frame, subframe i by time slot 2i with (2i+1) form, wherein, i=0,1...9.For the FDD system, every 10ms is in the time, because up-downgoing separates at frequency domain, therefore the provisional capital has 10 sub-frame to use up and down.And for the TDD system, every 10ms is in the time, and up-downgoing has 10 sub-frame and can use, and wherein always distributes to the downlink transfer except subframe 0 and subframe 5, and all the other each subframes are distributed to up or distributed to descending.Second type of frame structure is only applicable to the TDD system; Such frame structure is referring to Fig. 2; Such radio frames frame length also is 10ms, and each frame is split into the field of 2 5ms, and each field is made up of 7 business time-slots (being labeled as 0 to 6) and 3 special time slots (descending pilot frequency, protection interval and ascending pilot frequency).Each subframe definition is a business time-slot.Wherein, subframe 0 always is used for downlink transfer with descending pilot frequency time slot, and ascending pilot frequency and subframe 1 always are used for uplink.
For error block is fed back re-transmission fast, and make full use of the information that error block is carried through the merging data piece, the LTE system has adopted HARQ (Hybrid Automatic Repeat Request, mixed automatic repeat request) technology.Uplink ACK/NACK signaling is as a uplink control signaling part, and transmission means has two kinds, a kind ofly be, when UE (User Equipment, subscriber equipment) has the uplink business data transmission, ACK/NACK signaling and business datum multiplexing transmission; Another kind is that when U E did not have uplink business data, the ACK/NACK signaling was transmitted in the frequency band that the frequency band both sides of bandwidth of operation are reserved, and adopted the frequency hopping mode to improve transmission performance.This paper discusses to second kind of situation.For second kind of ACK/NACK transmission means; The scheme that the LTE system confirms is: the ACK/NACK of 1 bit (corresponding to the single codeword feelings) is mapped as BPSK (Binary Phase Shift Keying; Biphase phase shift keying) symbol, the ACK/NACK of 2 bits (corresponding 2 code words) is mapped as QPSK (Quadrature Phase Shift Keying, QPSK) symbol; Each modulation symbol spreads to CAZAC (permanent envelope zero autocorrelation sequence), adopts the method transmission of relevant modulation.For first kind frame structure shown in Figure 1, each PRB (Physical Resource Block, Physical Resource Block) can support that at most 18UE is multiplexing; For second type of frame structure shown in Figure 2, also adopt the every PRB of hopping structure to support that at most 12UE is multiplexing.Because the ACK/NACK signaling generally is merely 1 bit or 2 bits; If extra increase UE identifying information can increase information redundance greatly, reduce efficiency of transmission, therefore; In the LTE-FDD system; Confirm to adopt the mode of implicit indication, set up the mapping relations of the control channel sequence number that ACK/NACK signaling and corresponding scheduling control signaling of downlink take, made eNB (evolved base station) can judge the U E and the data block of ACK correspondence.Referring to Fig. 3; Indicate the method sketch map of ack channel based on implicit mode for existing LTE-FDD system; Wherein, through setting up the mapping relations of ACK/NACK signaling channel and corresponding scheduling control signaling of downlink channel in advance, make eNB can judge ACK signaling corresponding U E and data block.
For the FDD system, separately, ascending-descending subframes can be easy to set up one-to-one relationship on frequency in up-downgoing; That is to say the only corresponding unique descending sub frame of ACK/NACK signaling of a sub-frame of uplink; The relative simple fixation of corresponding relation, therefore, in the meeting of LTE system standard; Professional for discontinuously dispatching, confirm that its ACK feedback scheme adopts the implicit indicating means of above-mentioned introduction.Yet for the TDD system, up-downgoing adopts the unsymmetric structure of variable-scale to support non-symmetrical service, and this asymmetry structure causes up-downgoing can not set up simple one-to-one relationship.Therefore, the ACK feedback method of TDD system needs design again.
Summary of the invention
In view of this, the present invention provides a kind of LTE-TDD ACK/NACK of system dispatching method and scheduler, to adapt to the professional asymmetric characteristics of tdd systems up-downgoing.
For this reason, the embodiment of the invention adopts following technical scheme:
A kind of LTE-TDD ACK/NACK of system dispatching method comprises:
When sub-frame of uplink quantity during less than descending sub frame quantity:
Each user equipment (UE) downlink service data distribution situation of network side statistics, to each UE, whether the monitoring downlink service data is scheduled; After confirming that certain UE downlink service data is scheduled, send the physical resource that message is informed feeding back ACK/NACK to this UE;
UE is according to receiving message, feeding back ACK/NACK on the respective physical resource;
When sub-frame of uplink quantity during more than or equal to descending sub frame quantity:
Before sending downlink service data, the mapping relations of shared channel of descending control signaling and feeding back ACK/NACK channel are set in advance;
Network side sends descending control signaling through said mapping relations, and the UE side is through said mapping relations feeding back ACK/NACK.
Network side is through BCH broadcast, the physical resource of informing U E feeding back ACK/NACK.
A kind of LTE-TDD ACK/NACK of system dispatching method comprises: when sub-frame of uplink quantity during less than descending sub frame quantity:
Network side treats that with each UE the dispatching services data put into buffering area; During buffering area UE business datum is scheduled,, send the physical resource that message is informed feeding back ACK/NACK to this UE through this UE downlink service data distribution situation in the buffering area; UE is according to receiving message, feeding back ACK/NACK on the respective physical resource;
When sub-frame of uplink quantity during more than or equal to descending sub frame quantity:
Before sending downlink service data, the mapping relations of shared channel of descending control signaling and feeding back ACK/NACK channel are set in advance;
Network side sends descending control signaling through said mapping relations, and the UE side is through said mapping relations feeding back ACK/NACK.
Network side passes through at the extra additional messages of descending control signaling, the physical resource of informing UE feeding back ACK/NACK.
Network side is informed the physical resource of UE feeding back ACK/NACK through the BCH broadcast.
Technique effect analysis for technique scheme is following:
The present invention is from the professional asymmetric characteristics of time division duplex up-downgoing; ACK/NACK feedback method based on scheduling mechanism is provided: for sub-frame of uplink more than or equal the situation of descending sub frame, promptly single ACK/NACK situation is for the situation of sub-frame of uplink less than descending sub frame; Adopt direct indicating mode; Specifically comprise direct finger-length measurement of buffering and two kinds of instant directly finger-length measurements again, it is simple to cushion direct finger-length measurement processing mode, and the time-delay of instant directly finger-length measurement is little.Can choose flexibly according to system requirements.
Description of drawings
Fig. 1 is a prior art first kind frame structure sketch map;
Fig. 2 is second type of frame structure sketch map of prior art;
Fig. 3 is a prior art LTE-FDD system feedback ACK scheme sketch map;
Fig. 4 is one of ACK/NACK and service subframe mapping sketch map;
Fig. 5 is two of ACK/NACK and a service subframe mapping sketch map;
Fig. 6 is three of ACK/NACK and a service subframe mapping sketch map;
Fig. 7 is the direct finger-length measurement flow chart of buffering;
Fig. 8 is the direct finger-length measurement example schematic of buffering;
Fig. 9 is instant directly finger-length measurement flow chart;
Figure 10 is instant directly finger-length measurement example schematic;
Figure 11 is the first scheduler sketch map;
Figure 12 is the second scheduler sketch map.
Embodiment
The present invention is directed to TDD system characteristics, propose the ACK/NACK feedback scheme, especially under the situation of descending sub frame, guarantee effective transmission of ACK/NACK signaling, guarantee uplink single-carrier property more than sub-frame of uplink.So-called single-carrier property, be appreciated that here for: the channel of transferring ACK/NACK is continuous on frequency domain, and uses identical ZC (Zadoff-Chu) sequence.
Like preceding introduction, for the TDD system, because the asymmetric property of up-downgoing can not always be set up one-to-one relationship as the FDD system.Referring to Fig. 4, when descending sub frame is less than or equal sub-frame of uplink, can confirm transferring ACK/NACK and service subframe mapping relations through stipulated form.Referring to Fig. 5; At descending sub frame during more than sub-frame of uplink; Mean that an ascending time slot need send the ACK/NACK signaling of corresponding a plurality of descending time slot data blocks, the situation of the limit is that first kind frame structure up-downgoing ratio is 1/9; Second type of frame structure up-downgoing ratio is 1/6, means that each sub-frame of uplink will transmit the corresponding ACK/NACK signaling of 9 or 6 descending sub frame data blocks.In order to ensure the single-carrier property of uplink, a plurality of ACK/NACK signalings must be unified to arrange.In fact, those skilled in the art may expect adopting following scheme to solve: in the UL subframe, set a plurality of ACK/NACK zone, the corresponding descending sub frame in each zone; Adopt the method for FDD system then, still, owing to must carry out resource distribution according to maximum UE quantity; Resource occupation is many like this; And the situation that a plurality of UE send ACK/NACK simultaneously in the practical application seldom, therefore, causes the very big wasting of resources; In addition, when a UE when a plurality of descending sub frames all have transmission of data blocks, a plurality of ACK/NACK are mapped to a plurality of zones, can destroy up single-carrier property.
Referring to Fig. 6, for various descending sub frames during more than sub-frame of uplink, ACK/NACK and service subframe mapping relations sketch map.Wherein,, obviously can directly adopt the method for LTE FDD, set up corresponding relation with the control channel sequence number for the UL ACK/NACK signaling of only shining upon a DL time slot.When sub-frame of uplink during less than descending sub frame; Can only arrange a sub-frame of uplink need transmit a plurality of ACK signalings; For the up-downgoing ratio is three kinds of situation of 3: 4,2: 5 and 1: 6; A certain sub-frame of uplink need send the corresponding ACK/NACK signaling of 2,4,6 descending time slot data blocks, and these three kinds of situation are referred to as " many ACK/NACK situation ".Heavy below point-to-points ACK situation provides concrete solution.
For many ACK/NACK situation, the present invention adopts the method for direct indication that ACK/NACK is dispatched.For example, in the DL of eNB dispatch, increase the channel of its ACK feedback of specific bit indication.This wherein comprises two kinds of concrete implementations again, introduces respectively below.
First kind is the direct finger-length measurement of buffering:
Referring to Fig. 7,, comprising for cushioning the flow chart of direct finger-length measurement:
Step 701: to each UE, judged whether that downlink data sends, if having, execution in step 702, otherwise, continue to wait for;
Step 702: each UE downlink data is put into buffering area respectively;
Is step 703: the downlink data of putting into buffering area scheduled? If, execution in step 704, otherwise, wait for;
Step 704: according to this UE downlink data number of blocks of buffering area, additional specific information in the descending scheduling signaling is indicated this UE uplink ACK/NACK physical resource (channel);
Step 705:UE is according to the indication in the customizing messages, feeding back ACK/NACK on corresponding channel.
In step 704, inform the channel of UE feeding back ACK/NACK except in the descending scheduling signaling, increasing characteristic information, can also inform through the mode of BCH broadcasting.
With an instantiation the direct finger-length measurement of sort buffer is described at present.
Referring to Fig. 8, with the uplink and downlink timeslot ratio of second type of frame be 1: 6 be example, be labeled as the corresponding uplink ACK/NACK of down2 descending time slot among the figure and all send at the ascending time slot that is being labeled as up2, all the other are similar.Before, all in buffering area, wait at be scheduled (t1 constantly) in the request of sending of these 6 descending time slots, at t1～t2 in the time period; 6 professional ACK feedback informations of descending time slot are dispatched by unified the arrangement; Assurance is arranged a plurality of ACK of same UE on the same physical resource, thereby satisfies single-carrier property, and concrete operations are; According to this UE downlink business situation of buffering area, corresponding A CK/NACK information is attached in the DL scheduling control signaling.T3 is constantly according to the ACK/NACK indication information that receives, and a plurality of ACK/NACK signalings that each UE produces according to its CRC (CRC) check results are in the up2 slot transmission.
This processing mode is simple; The processing of eNB and UE is all very simple, in the eNB side, only need downlink data be put into buffering area; And the increase specific bit informs that the ACK/NACK transmission channel gets final product in the DL scheduling control information; In the UE side, do not need extra judgement, only need get final product according to indication feeding back ACK/NACK on corresponding physical resource of eNB.
Second kind is instant directly finger-length measurement:
In above-mentioned first method, thereby know the downlink data situation of certain UE, realize simply, but can increase time-delay relatively at a time slot through buffering area.In the method, eNB in advance statistics sends the downlink service data situation to each UE, thereby when having sent last time slot services data to certain UE, additional specific information in the descending scheduling signaling is to inform the physical resource of this UE feeding back ACK/NACK.
Referring to Fig. 9, be the instant directly flow chart of finger-length measurement, comprising:
Step 901:eNB adds up each UE downlink service data distribution situation before each UE sends downlink service data;
Step 902: certain UE downlink service data is arranged? If, execution in step 903, otherwise, wait for;
Is step 903: this UE downlink service data scheduled? If, execution in step 904, otherwise, wait for;
Step 904: before UE feeding back ACK/NACK, send the descending scheduling signaling of the customizing messages that comprises indication ACK/NACK channel;
Step 905: this UE on the channel of customizing messages indication, feeding back ACK/NACK signaling.
In step 904, inform the channel of UE feeding back ACK/NACK except in the descending scheduling signaling, increasing characteristic information, can also inform through the mode of BCH (Broadcast Channel broadcast channel) broadcasting.
Still this method is described at present with an instantiation.
Referring to Figure 10,,, be labeled as the corresponding uplink ACK/NACK of down2 descending time slot among the figure and all send at the ascending time slot that is labeled as up2 if the up-downgoing ratio is 1: 6 for second type of frame.In the end a down2 subframe constantly; ENB has been informed in the associated period (all are labeled as the subframe of down2); The service dispatching situation of each UE; So, eNB just can arrange ACK/NACK feedback physical resource for all packets of all UE, can guarantee resources effective utilization and single-carrier property.Before the ACK/NACK feedback, ack channel is informed that UE gets final product, what represent among the figure is constantly to inform UE through the mode of descending control signaling in last subframe of down2.
Two kinds of direct finger-length measurements of above-mentioned introduction are to be the explanation that example is carried out with second type of frame, and they are equally applicable to first kind frame.
To sum up; The present invention has introduced under the LTE-TDD system, based on the ACK/NACK feedback method of scheduling mechanism: for sub-frame of uplink more than or equal the situation of descending sub frame, promptly single ACK/NACK situation; Adopt the method that similarly implies mapping with LTE-FDD based on DL scheduling controlling channel designator; That is, before sending downlink service data, the mapping relations of descending control signaling channel and feeding back ACK/NACK channel are set in advance; Network side sends descending control signaling through said mapping relations, and the UE side is through said mapping relations feeding back ACK/NACK; For the situation of sub-frame of uplink less than descending sub frame, adopt direct indicating mode, specifically comprise the direct finger-length measurement of buffering and two kinds of instant directly finger-length measurements of above-mentioned introduction again.
Corresponding with said method, the present invention also provides scheduler, and this scheduler is present in the network equipment, for example is present among the eNB.
Referring to Figure 11, be the first scheduler architecture sketch map, corresponding to instant directly finger-length measurement.It comprises statistic unit 1101, monitoring unit 1102, ACK/NACK channels determining unit 1103 and message elements 1104, respectively the function of each unit is introduced below:
Whether monitoring unit 1102 is mainly used in each UE of monitoring has downlink service data to be scheduled, if send certain UE indication that is scheduled;
ACK/NACK channels determining unit 1103 according to the statistics of said statistic unit 1101, is confirmed the physical resource of UE feeding back ACK/NACK;
Referring to Figure 12, be the second scheduler architecture sketch map, corresponding to the direct finger-length measurement of buffering.It comprises buffer module 1201, buffering area statistical module 1202, monitoring module 1203, ACK/NACK channel determination module 1204 and message module 1205, respectively the function of each module is introduced below:
Buffering area statistical module 1202 is used to add up buffering area, thereby knows each UE downlink service data distribution situation;
Whether monitoring module 1203 is used to monitor each UE has downlink service data to be scheduled, if send certain UE indication that is scheduled;
ACK/NACK channel determination module 1204 according to the statistics of said buffering area statistical module 1202, is confirmed the channel of UE feeding back ACK/NACK;
Wherein, above-mentioned two kinds of schedulers send to UE and inform that the message of ACK/NACK channel can be extra additional message in descending control signaling, or the BCH broadcast.
Specifically realize details about scheduler, embodiment is similar with method, repeats no more at this.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. the ACK/NACK of a LTE-TDD system dispatching method is characterized in that, comprising:
When sub-frame of uplink quantity during less than descending sub frame quantity:
Each user equipment (UE) downlink service data distribution situation of network side statistics, to each UE, whether the monitoring downlink service data is scheduled; After confirming that certain UE downlink service data is scheduled, send the physical resource that message is informed feeding back ACK/NACK to this UE;
UE is according to receiving message, feeding back ACK/NACK on the respective physical resource;
When sub-frame of uplink quantity during more than or equal to descending sub frame quantity:
Before sending downlink service data, the mapping relations of shared channel of descending control signaling and feeding back ACK/NACK channel are set in advance;
Network side sends descending control signaling through said mapping relations, and the UE side is through said mapping relations feeding back ACK/NACK.
2. according to the said method of claim 1, it is characterized in that network side passes through at the extra additional messages of descending control signaling, the physical resource of informing U E feeding back ACK/NACK.
3. according to the said method of claim 1, it is characterized in that network side is through BCH broadcast, the physical resource of informing UE feeding back ACK/NACK.
4. the ACK/NACK of a LTE-TDD system dispatching method is characterized in that, comprising:
When sub-frame of uplink quantity during less than descending sub frame quantity:
Network side treats that with each UE the dispatching services data put into buffering area; During buffering area UE business datum is scheduled,, send the physical resource that message is informed feeding back ACK/NACK to this UE through this UE downlink service data distribution situation in the buffering area;
UE is according to receiving message, feeding back ACK/NACK on the respective physical resource;
When sub-frame of uplink quantity during more than or equal to descending sub frame quantity:
Before sending downlink service data, the mapping relations of shared channel of descending control signaling and feeding back ACK/NACK channel are set in advance;
Network side sends descending control signaling through said mapping relations, and the UE side is through said mapping relations feeding back ACK/NACK.
5. according to the said method of claim 4, it is characterized in that network side passes through at the extra additional messages of descending control signaling, the physical resource of informing UE feeding back ACK/NACK.
6. according to the said method of claim 4, it is characterized in that network side is informed the physical resource of UE feeding back ACK/NACK through the BCH broadcast.
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| CN102088341B (en) * | 2009-12-04 | 2013-04-17 | 电信科学技术研究院 | Transmitting method and transmitting device of feedback information |
| CN102237991B (en) * | 2010-04-30 | 2016-08-24 | 北京三星通信技术研究有限公司 | The method sending ACK/NACK information in a tdd system |
| WO2012022033A1 (en) * | 2010-08-17 | 2012-02-23 | 富士通株式会社 | Communication system, receiver, transmitter and method for performing and determining reception feedback |
| KR101497850B1 (en) | 2010-12-02 | 2015-03-02 | 엘지전자 주식회사 | Method and device for transmitting ack/nack in tdd-based wireless communication system |
| US8917621B2 (en) | 2011-12-28 | 2014-12-23 | Huawei Technologies Co., Ltd. | Method and apparatus for obtaining feedback delay |
| CN106685603B (en) | 2015-11-11 | 2019-11-05 | 华为技术有限公司 | The method and apparatus of TDD system information transmission |
| WO2018201555A1 (en) * | 2017-05-04 | 2018-11-08 | 华为技术有限公司 | Resource indication method and device |
| CN110809319B (en) * | 2018-08-06 | 2023-10-31 | 黎光洁 | Data transmission method and data transmission system in Internet of things |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407816A (en) * | 2001-09-06 | 2003-04-02 | 华为技术有限公司 | Self-adapting method for mobile communication transmitting signals |
| CN1536794A (en) * | 2003-04-07 | 2004-10-13 | 华为技术有限公司 | Method for notifing distribution of up resaurce |
| CN1630380A (en) * | 2003-12-17 | 2005-06-22 | 北京三星通信技术研究有限公司 | Transmission method of uplink signaling for uplink channel enhancement in high speed CDMA system |
| CN1819487A (en) * | 2005-02-07 | 2006-08-16 | 北京三星通信技术研究有限公司 | Frequency-extending code-word distribution containing frequency-extending factor in time-division duplex system |
-
2007
- 2007-10-29 CN CN2007101815936A patent/CN101399645B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407816A (en) * | 2001-09-06 | 2003-04-02 | 华为技术有限公司 | Self-adapting method for mobile communication transmitting signals |
| CN1536794A (en) * | 2003-04-07 | 2004-10-13 | 华为技术有限公司 | Method for notifing distribution of up resaurce |
| CN1630380A (en) * | 2003-12-17 | 2005-06-22 | 北京三星通信技术研究有限公司 | Transmission method of uplink signaling for uplink channel enhancement in high speed CDMA system |
| CN1819487A (en) * | 2005-02-07 | 2006-08-16 | 北京三星通信技术研究有限公司 | Frequency-extending code-word distribution containing frequency-extending factor in time-division duplex system |
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