CN102326353B - Method for performing hybrid automatic repeat request operation in wireless mobile communication system - Google Patents

Abstract

A method for performing a Hybrid Automatic Repeat reQuest (HARQ) operation in a wireless mobile communication system that uses Frequency Division Duplex (FDD) or Time Division Duplex (TDD) frames each having a plurality of subframes for communication are provided, in which an HARQ timing including a transmission time of a data burst and a transmission time of an HARQ feedback, for DL HARQ is determined according to data burst assignment information transmitted in a #l DownLink (DL) subframe of a #i frame, and an HARQ operation is performed according to the determined HARQ timing. At least one frame index and at least one subframe index that represent the HARQ timing are determined by using l and i.

Description

For carry out the method for mixed automatic retransfer solicit operation at mobile radio system

Technical field

The present invention relates to mobile radio system.More specifically, the present invention relates to for carry out the method for mixed automatic retransfer request (Hybrid Automatic Repeat reQuest, HARQ) operation at mobile radio system.

Background technology

Mobile radio system has been developed to provide miscellaneous service, comprises broadcasting service, multimedia video business, Multimedia Messaging Service etc.Mobile radio system of future generation develops under such target: for the user of fast moving provides 100Mbps or above data service, and provide 1Gbps or above data service for mobile at a slow speed user.

In mobile radio system, for high-speed transfer and the reception of the reliable data between base station (BS) and mobile radio station (MS), need the control overhead of reduction and shorter time delay.In order to reduce control overhead and time delay, can adopt mixed automatic retransfer request (HARQ) technology.

In realizing the mobile radio system of HARQ, when reflector sends to receiver by the signal that carries data, receiver is to reflector feedback acknowledgment (ACK) signal or Negative Acknowledgement (NACK) signal, the successful reception of ack signal index signal, the taking defeat of NACK signal designation signal.When receiving ACK or NACK signal, reflector starts to send new data or retransmits the data that sent to receiver according to HARQ scheme.HARQ scheme can be categorized as two types, and Chase merges (Chase Combining, CC) and incremental redundancy (Incremental Redundancy, IR).

In HARQ operating period, take frame and carry out sending and receiving as basis, do like this and can not reduce time delay.Therefore, need to be able to shorten the new frame structure of the time delay of signal transmission and reception, and for realizing the HARQ operation timing structure (HARQ operation timing structure) of new frame structure.

Summary of the invention

Technical problem

An aspect of of the present present invention will at least be processed above-mentioned problem and/or shortcoming, and advantage as described below is at least provided.Therefore, an aspect of of the present present invention will provide a kind of for control the method for mixed automatic retransfer request (HARQ) operation at mobile radio system.

Another aspect of the present invention will provide a kind of method, send bursty data (data burst), sends for the HARQ feedback of bursty data and the timing of retransmitting bursty data for determining at mobile radio system.

Also one side of the present invention will provide a kind of method, for determining neatly HARQ operation timing according to the transmission time interval of the bursty data of wireless communication system and system capability.

Technical scheme

According to an aspect of the present invention, provide one for carry out the method for HARQ operation at mobile radio system, the frame that described mobile radio system is used each to have a plurality of subframes communicates, in described method, according to the bursty data assignment information sending in #l down link (DL) subframe of #i frame, determine that HARQ regularly, for DL HARQ, described HARQ regularly comprises the transmitting time of DL bursty data and the transmitting time of HARQ feedback, and regularly carries out HARQ operation according to definite HARQ.By determining with l and i, represent HARQ at least one frame index and at least one subframe index regularly.

According to a further aspect in the invention, provide a kind of for carry out the method for HARQ operation at mobile radio system, the frame that described mobile radio system is used each to have a plurality of subframes communicates, in described method, according to the bursty data assignment information sending in #l down link (DL) subframe of #i frame, determine that HARQ regularly, for UL HARQ, described HARQ regularly comprises the transmitting time of up link (UL) bursty data, the transmitting time of HARQ feedback, and the retransmission time of bursty data, and regularly carry out HARQ operation according to definite HARQ.By determining with l and i, represent HARQ at least one frame index and at least one subframe index regularly.

From the following detailed description that discloses one exemplary embodiment of the present invention by reference to the accompanying drawings, other aspects of the present invention, advantage and notable feature will become clear to those skilled in the art.

Accompanying drawing explanation

From following detailed description by reference to the accompanying drawings, the above and other aspects, features and advantages of particular exemplary embodiment of the present invention will become clearer, wherein:

Fig. 1 illustrates Frequency Division Duplexing (FDD) (Frequency Division Duplex, the FDD) superframe structure of the one exemplary embodiment according to the present invention;

Fig. 2 illustrates time division duplex (Time Division Duplex, the TDD) superframe structure of the one exemplary embodiment according to the present invention;

Fig. 3 is the diagram that mixed automatic retransfer request (Hybrid Automatic Repeat reQuest, HARQ) operation timing structure one exemplary embodiment, that send for the down link at FDD (DL) bursty data according to the present invention is shown;

Fig. 4 is the diagram that HARQ operation timing structure one exemplary embodiment, that send for the up link at FDD (UL) bursty data according to the present invention is shown;

Fig. 5 is the diagram that HARQ operation timing structure one exemplary embodiment, that send for the DL bursty data at TDD according to the present invention is shown;

Fig. 6 is the diagram that HARQ operation timing structure one exemplary embodiment, that send for the UL bursty data at TDD according to the present invention is shown;

Fig. 7 is the diagram that HARQ operation timing structure one exemplary embodiment, that send in the situation of two different coexistence of systems, for the DL bursty data at TDD according to the present invention is shown;

Fig. 8 is the diagram that HARQ operation timing structure one exemplary embodiment, that send in the situation of two different coexistence of systems, for the UL bursty data at TDD according to the present invention is shown;

Fig. 9 is the diagram that the HARQ operation timing structure another one exemplary embodiment, that send for the DL bursty data at FDD according to the present invention is shown;

Figure 10 is the diagram that the HARQ operation timing structure another one exemplary embodiment, that send for the DL bursty data at TDD according to the present invention is shown;

Figure 11 is that diagram one exemplary embodiment, based on DL to the HARQ operation timing structure of UL ratio according to the present invention is shown to Figure 14;

Figure 15 illustrate according to the present invention one exemplary embodiment, the frame structure in the mobile radio system of supporting relay station (RS);

Figure 16 illustrates relay station one exemplary embodiment, in TDD (RS) frame structure according to the present invention;

Figure 17 be illustrate according to the present invention one exemplary embodiment, for the diagram of the HARQ operation timing structure of strange (odd-hop) RS of jumping;

Figure 18 be illustrate according to the present invention one exemplary embodiment, for the diagram of the HARQ operation timing structure of even jumping (even-hop) RS; And

Figure 19 and Figure 20 be illustrate according to the present invention one exemplary embodiment, for according to the diagram of the signal stream of operation DL HARQ timing architecture and UL HARQ timing architecture, between base station (BS) and mobile radio station (MS).

Spread all over accompanying drawing, will notice that similar reference number is used to describe identical or similar element, feature and structure.

Embodiment

Provide referring to the description of accompanying drawing to help the complete understanding to the one exemplary embodiment of the present invention being limited by claim and equivalent thereof.This description comprises the various details of understanding with helping, but these details will be regarded as merely exemplary.Therefore, those those of ordinary skills will be appreciated that, can embodiment described here be made various changes and modifications and not departed from the scope of the present invention and spirit.In addition, for clarity and conciseness, by the description of omitting known function and structure.

The term using in description below and claim and word are not limited to their lexical meaning, but only by inventor, are used for making understanding of the present invention can know with consistent.Therefore, to it will be clear to someone skilled in the art that, provide the following description of one exemplary embodiment of the present invention only for illustration purpose, rather than the object for the present invention who is defined by claims and equivalent thereof is limited.

It should be appreciated that, singulative " ", " one " and " being somebody's turn to do " comprise plural form, unless context is pointed out in addition clearly.Thereby, for example, mention that " assembly surface " comprises one or more so surperficial quoting.

One exemplary embodiment of the present invention concentrates on a kind of method, for utilize predetermined HARQ to retransmit time delay at mobile radio system, carry out mixed automatic retransfer request (HARQ) operation, described mobile radio system operates with Frequency Division Duplexing (FDD) (FDD), time division duplex (TDD), half-duplex FDD (Half duplex-FDD, H-FDD) or the mode of FDD and TDD.In TDD or H-FDD, can to the ratio of up link (UL), configure frame with multiple down link (DL).Therefore, in frame, DL duration and UL duration can be symmetrical or asymmetric.

Hereinafter, by being described according to the signal sending and receiving between base station HARQ scheme, based on superframe structure (BS) and mobile radio station (MS).Each superframe comprises one or more frames, and each frame has one or more subframes.Term " subframe " can exchange and use with " time slot (time slot) ".Each time slot or subframe comprise one or more OFDM (OFDMA) symbol.

In an embodiment, each in BS and MS can comprise: controller, for generating and analyze bursty data assignment information, determine HARQ transmitting time according to frame structure and the HARQ operation timing described after a while; At least one HARQ processor, for timing definite under the control of controller, generates and analyzes bursty data and HARQ feedback; And transceiver, for sending and receiving bursty data assignment information, bursty data and HARQ feedback.For example, bursty data assignment information can be used as senior MAP (the Advanced MAP that allocated resource is distributed, A-MAP) information element (IE) transmits, and bursty data can send with the form of the HARQ subgroup (subpacket) that operation generates according to HARQ.

Fig. 1 illustrates the FDD superframe structure of the one exemplary embodiment according to the present invention.

With reference to Fig. 1, superframe 100 comprises four frames 110, and each frame has eight subframes.In FDD, from BS, point to the DL subframe 120 of MS and occupy different frequency bands from the UL subframe 130 of MS sensing BS.

Fig. 2 illustrates the TDD superframe structure of the one exemplary embodiment according to the present invention.

With reference to Fig. 2, superframe 200 comprises four frames 210, and each frame has eight subframes 220.In TDD, in each frame, the subframe of predefine quantity in the middle of whole subframes is used as to DL subframe, and remaining subframe is as UL subframe.In the situation of the Fig. 2 illustrating, DL is 5: 3 to UL ratio, and this is implying and during the DL period, is defining five DL subframes and during the UL period, defining three UL subframes.Sending/receiving change gap (TTG) 230 is inserted between DL subframe and UL subframe below, and receive/transmission change gap (RTG) 240 is inserted between UL subframe and DL subframe below.

Although comprise four frames at each superframe shown in Fig. 1 and Fig. 2, each frame has eight subframes, and the number of frames N of each superframe and the sub-frame number F of each frame can depend on the bandwidth of mobile radio system and sub-carrier separation and change.In thering is OFDM/OFDM (OFDM/OFDMA) mobile radio system of the channel width of 5MHz, 10MHz and 20MHz, each frame can have eight subframes, and in the OFDM/OFDMA mobile radio system of channel width with 8.75MHz, the sub-frame number of each frame can be 7.In addition the OFDM/OFDMA mobile radio system that, has the channel width of 7MHz can have six subframes by each frame.In addition,, for given bandwidth, according to Cyclic Prefix (Cyclic Prefix, CP) length, the sub-frame number of each frame can be different.

In HARQ, initialization regularly can be placed in certain mapping relations with retransmitting regularly.These mapping relations are known as HARQ operation timing structure or HARQ interweaves (interlace).HARQ operation timing structure or HARQ interweave and refer to following relation: carrying the subframe of MAP message and carrying the relation between the subframe of signal, described MAP message comprises that resource allocation information (, control information), described signal with described in to carry the subframe of MAP message relevant; Carrying the subframe of described signal and carrying for the relation between the subframe of the feedback of described signal; And in described feedback subframe with according to the relation between the subframe of carrying initialization data or retransmission data of described feedback.Provide the more detailed description that HARQ operation timing structure or HARQ interweave below.

(1) bursty data distributes IE: DL bursty data or UL bursty data in its indication DL subframe.

(2) bursty data: reflector distributes IE to send bursty data in the resource of distributing according to bursty data.

(3) HARQ for the bursty data receiving feeds back: receiver is according to whether having been found that error sends ACK or NACK signal in the bursty data receiving.

(4) according to the initialization of bursty data or the repeating transmission of bursty data of HARQ feedback: when receiving NACK signal, reflector is retransmitted bursty data.Reflector can also be provided for the resource allocation information of retransmitting.On the other hand, when receiving ack signal, reflector can initially send new bursty data.

HARQ scheme can be categorized as asynchronous HARQ and synchronous HARQ.For asynchronous HARQ, need to define the HARQ operation timing structure of being appointed as (1), (2) and (3), and need to define for synchronous HARQ the HARQ operation timing structure of being appointed as (1) to (4).In order to define these HARQ operation timing structures, DL at least one DL subframe in the period should be with UL at least one the UL subframe in the period in predefined mapping relations.

Now by the HARQ operation timing of describing in detail for FDD and tdd mode.

Fig. 3 illustrates the diagram of analyzing HARQ operation timing structure one exemplary embodiment, that send for the DL bursty data of FDD according to the present invention.As shown in Figure 3, the HARQ operation timing structure sending for the DL bursty data of FDD is that the FDD frame structure based on shown in Fig. 1 designs.The number of frames N that supposes each superframe is 4, and the sub-frame number F of each frame is 8, and for sending/receiving (Tx/Rx) processing time of bursty data be 3 subframes, DL HARQ feedback shift z is 0, and DL HARQ to send skew u be 0.The Tx processing time is defined as after reflector place receives HARQ feedback and sends the required time of next data, and the Rx processing time is defined as and after receiver reception data, sends HARQ and feed back the required time.

With reference to Fig. 3, in the #1DL subframe (that is, first DL subframe) 300 of the #i frame (that is, i frame) of reflector in DL frequency band, send bursty data assignment information and DL bursty data.In the #5UL subframe 310 of the #i frame of receiver in UL frequency band, send subsequently the HARQ feedback for DL bursty data.If HARQ feedback is NACK signal, in the #1DL subframe 320 of # (i+1) frame of reflector in DL frequency band, retransmit bursty data.For the bursty data of retransmitting, in the #5UL subframe 330 of # (i+1) frame of receiver in UL frequency band, send HARQ feedback.

With reference to form 1 below, above-mentioned HARQ operation is described, the index n that carries the subframe of HARQ feedback is 5, and { ceil (1+4) mod 8} determines by calculating, the index j that carries the frame of HARQ feedback is i, and { i+floor (ceil (1+4)/8)+0}mod 4 determines by calculating, and the index k that carries the frame of retransmitting HARQ bursty data is i+1, and { j+floor ((5+4)/8)+0}mod 4 determines by calculating." ceil " rounds up independent variable to be more than or equal to the immediate integer of this independent variable, and " floor " is rounded to by independent variable the immediate integer that is less than or equal to this independent variable downwards.

Form 1 carries out list by the FDD DL HARQ operation timing structure of the one exemplary embodiment according to the present invention.Form 1 can be for determining at least one the transmitting time in following: have the distribution A-MAP of bursty data assignment information, the HARQ subgroup of carrying bursty data, HARQ and feed back (ACK or NACK) and HARQ retransmission sub-packet.It should be understood, however, that form 1 should not be interpreted as limitation of the present invention.

Form 1

In form 1, N represents the number of frames of each superframe.If each superframe comprises four subframes, N is 4.F represents the sub-frame number of each frame.For example, N=4 and F=8 in the situation that bandwidth is 5MHz, 10MHz and 20MHz.I, j and k represent DL frame index or UL frame index.L represents to carry the index of the DL subframe of bursty data assignment information, and m represents to carry the index of the DL subframe of initialization bursty data, and n represents to carry the index of UL subframe of the HARQ feedback of the bursty data for receiving.In addition, z represents DL HARQ feedback shift, and u represents DL HARQ Tx skew.Z and u are both expressed as the quantity of frame.Therefore, i=0,1 ..., N-1, j=0,1 ..., N-1, l=0, N _a-MAP..., N _a-MAP(ceil (F/N _a-MAP)-1), n=0,1 ..., F-1, m=0,1 ..., F-1, z=0,1 ..., z _max-1, and u=0,1 ..., u _max-1.

N _a-MAPrepresent to send the period of bursty data assignment information, be expressed as the quantity of subframe.Bursty data assignment information is transmitted in typical MAP message or A-MAP message.If send bursty data assignment information in each DL subframe, N _a-MAP1.If sending bursty data assignment information in a DL subframe, N _a-MAP2.In this case, l=0,2 ..., 2 (ceil (F/2)-1).

For the FDD DL HARQ sending and receiving shown in Fig. 3, F=8, N=4, z=0 and u=0.The #m DL subframe of the DL bursty data assignment information indication #i frame sending in the #lDL of #i frame subframe 300.When at each DL subframe (that is, N _a-MAP=1), while sending bursty data assignment information in, the bursty data that the indication of bursty data assignment information starts in this DL subframe sends.That is to say m=l.On the other hand, when every DL subframe (that is a, N _a-MAP=2), while sending bursty data assignment information in, the bursty data that the bursty data assignment information indication in #lDL subframe starts in #l or # (l+1) DL subframe sends.That is to say, m is l or (l+1).Indication l or relevant information (l+1) are included in bursty data assignment information.

The bursty data of indicating by bursty data assignment information can occupy one or more DL subframes.The Transmission Time Interval (TTI) of the bursty data starting in #m DL subframe is by N _tTIrepresent.That is to say N _tTIthe quantity that represents the subframe that bursty data is crossed over.For example, N _tTIcan be preset (preset) or with signal, informed (signaled) by bursty data assignment information.If bursty data is crossed over subframe, a N _tTI=1, and if bursty data is crossed over four subframes, N _tTI=4.

The HARQ feedback of the bursty data starting for its #m DL subframe that is sent in #i frame sends in the #n of #j frame UL subframe.According to the index that carries the subframe of bursty data, m, n are given as:

n＝ceil(m+F/2)mod?F.....(1)

According to the subframe index m of bursty data and the definite index j that carries the UL frame of HARQ feedback of frame index i.Vertical shift is to produce by the time slot (time gap) between completing of sending at bursty data and the transmitting time of HARQ feedback.Calculate by following formula the time slot that is expressed as Gap1:

Gap1＝ceil(F/2)-N _TTI.....(2)

N wherein _tTIbe illustrated in the TTI of the bursty data in DL HARQ operation, N _tTIbe represented as the quantity of subframe, and F represents the sub-frame number of each frame.

Because the link period in FDD system is continuous, thus according to the TTI of DL burst and the sub-frame number of each frame, determine Gap1, and no matter subframe index.

In DL HARQ, DL HARQ feedback shift z is set so that the Gap1 describing as equation (2) is equal to or greater than the Rx processing time.For example, if Gap1 is equal to or greater than the Rx processing time, z=0, if instead Gap1 is less than Rx processing time, z=1.Adjust the value of z and send HARQ feedback so that have in the subframe of identical index in the frame postponing.In fact, z means the skew into the quantity of frame, and this does not also mean that the index that has changed the subframe of carrying HARQ feedback.

Once determine that in such a way after z, j is:

$j=(i+\mathrm{floor}\left(\frac{\mathrm{ceil}(m+F/2)}{F}\right)+z)\mathrm{mod}N\·\·\·\·\·\left(3\right)$

When retransmitting DL bursty data in asynchronous HARQ, by being included in repeating transmission designator in bursty data assignment information, indicate the retransmission time of DL bursty data.Meanwhile, if retransmit DL bursty data in synchronous HARQ, in the #m of #k frame subframe, retransmit.With reference to form 1, the index j based on carrying the frame of HARQ feedback determines described frame index k, and it is identical with the index of the subframe of the previous transmission of transmission bursty data to carry the index m of subframe of bursty data of repeating transmission.Vertical shift is to produce by the transmitting time in HARQ feedback and the time slot between the retransmission time of bursty data.The time slot that is expressed as Gap2 is provided by following formula:

Gap2＝floor(F/2)-N _CTRL，TTI.....(4)

N wherein _{cTRL, TTI}be illustrated in the TTI of the HARQ feedback in DL HARQ operation, and F represents the sub-frame number of each frame.Because the link period in FDD system is continuous, thus Gap2 according to the sub-frame number of the TTI of UL feedback and each frame, determine, and no matter subframe index.HARQ feedback is crossed over a subframe conventionally.

In DL HARQ, DL HARQ Tx skew u is set so that the Gap2 describing as equation (4) is equal to or greater than the Tx processing time.For example, if Gap2 is equal to or greater than the Tx processing time, u=0, if instead Gap2 is less than Tx processing time, u=1.Adjust the value of u so that send next HARQ data in the frame postponing.In fact, u means the skew into the quantity of frame, and this does not also mean that the index that has changed the subframe of carrying HARQ data.

Once determine that in such a way after u, k is:

$k=(j+\mathrm{floor}\left(\frac{m+F/2}{F}\right)+u)\mathrm{mod}N\·\·\·\·\·\left(5\right)$

As mentioned above, if do not guarantee that, for the treatment of the required time of transmitted signal, HARQ retransmission time may postpone a frame (that is, u=1).Herein, the time (Rx processing time) that the time (Tx processing time) that the transmission of statement " ample time " expression processing signals needs and processing signals reception need is over the reference value of knowing the sixth of the twelve Earthly Branches.This reference value is by system initial setting up or broadcast.

If frame index j and k are equal to or greater than the number of frames N of each superframe, the index of superframe increases by 1, and obtains frame index j and k by mould (modulo) formula of calculation equation (3) and equation (5).See figures.1.and.2, can consider N=4.

With reference to equation (2) and equation (4), in FDD, can determine DL HARQ feedback shift z and DL HARQ Tx skew u according to the signal handling capacity of the TTI (TTI of bursty data or feedback) of HARQ operation and the system (reflector and receiver) in FDD.Can the information of signal handling capacity be preset or be broadcasted by system.Can also will according to system operation scheme, in system configuration information, broadcast z and u is interpreted as another one exemplary embodiment.

Fig. 4 illustrates the diagram of analyzing HARQ operation timing structure one exemplary embodiment, that send for the UL bursty data of FDD according to the present invention.The number of frames N that supposes each superframe is 4, and the sub-frame number F of each frame is 8, and the Tx/Rx processing time be 3 subframes, UL HARQ feedback shift w is 0, and UL HARQ Tx skew v is 0.

With reference to Fig. 4, when the bursty data assignment information in the #1 DL of the #i frame in DL frequency band subframe 400 is received, in the #5UL subframe 410 of the #i frame of reflector in UL frequency band, send UL bursty data.According to the bursty data receiving, whether there is error, in the #1 DL subframe 420 of # (i+1) frame of receiver in DL frequency band, send HARQ feedback.If HARQ feedback is NACK signal, in the #5UL subframe 430 of # (i+1) frame of reflector in UL frequency band, retransmit bursty data.If DL subframe 420 is carried the bursty data assignment information that indication UL burst is retransmitted, according to bursty data assignment information, carry out the repeating transmission of UL bursty data.

With reference to form 2 below, above-mentioned HARQ operation is described, the index j that carries the frame of UL bursty data is i, and { i+floor (ceil (1+4)/8)+0}mod 4 determines by calculating, the index m that carries the subframe of UL bursty data is 5, and { ceil (1+4) mod 8} determines by calculating, and the index k that carries the frame of HARQ feedback is i (j=i)+1, and { j+floor ((5+4)/8)+0}mod 4 determines by calculating.The index that carries the subframe of HARQ feedback is l.If HARQ feedback is NACK signal, the index that carries the frame of retransmitting HARQ bursty data is i+1, and by calculating (k+floor (ceil (1+4)/8)+0) mod 4, determine, and the index m that carries the subframe of repeating transmission HARQ bursty data is 5.The FDD UL HARQ operation timing structure of form 2 one exemplary embodiment according to the present invention is carried out list.Form 2 can be for determining at least one the transmitting time in following: have the distribution A-MAP of bursty data assignment information, the HARQ subgroup of carrying bursty data, HARQ and feed back (ACK or NACK) and HARQ retransmission sub-packet.It should be understood, however, that form 2 should not be interpreted as limitation of the present invention.

Form 2

In form 2, N represents the number of frames of each superframe.If each superframe comprises four subframes, N is 4.F represents the sub-frame number of each frame.I, j, k and p represent DL frame index or UL frame index.L represents to carry the index of the DL subframe of bursty data assignment information, and m is illustrated in the index that bursty data wherein starts the UL subframe that will be sent out, and w represents UL HARQ feedback shift, and v represents UL HARQ Tx skew.W and v are both expressed as the quantity of frame.Therefore, i=0,1 ..., N-1, j=0,1 ..., N-1, k=0,1 ..., N-1, p=0,1 ..., N-1, l=0, N _a-MAP..., N _a-MAP(ceil (F/N _a-MAP)-1), m=0,1 ..., F-1, n=0,1 ..., F-1, w=0,1 ..., w _max-1, and v=0,1 ..., v _max-1.

N _a-MAPrepresent to send the period of bursty data assignment information, be expressed as the quantity of subframe.If send bursty data assignment information in each DL subframe, N _a-MAP1.If sending bursty data assignment information in a DL subframe, N _a-MAP2.In this case, l=0,2 ... 2 (ceil (F/2)-1).

In FDD UL HARQ sending and receiving, the bursty data that the UL bursty data assignment information indication sending in the #lDL of #i frame subframe starts in the #m of #j frame UL subframe sends.When at each DL subframe (that is, N _a-MAP=1), while sending bursty data assignment information in, the bursty data that the indication of bursty data assignment information starts in #nUL subframe sends.That is to say m=n.On the other hand, when every DL subframe (that is a, N _a-MAP=2), while sending bursty data assignment information in, the bursty data that the bursty data assignment information indication in #lDL subframe starts in #n or # (n+1) UL subframe sends.That is to say, m is n or (n+1).Indication n or relevant information (n+1) are included in bursty data assignment information.Herein, n is given as n=ceil (l+F/2) mod F.

The bursty data of indicating by bursty data assignment information can occupy one or more UL subframes.Pass through N _tTIthe TTI that represents bursty data.N _tTIby bursty data assignment information, with signal, inform.

The HARQ feedback of the bursty data starting for its #m UL subframe that is sent in #j frame sends in the #l of #k DL subframe.That is to say, in thering is the subframe of same index, send bursty data assignment information and HARQ feedback.According to subframe index m and frame index j, as described in form 2, determine frame index k.

Can pass through equation (2) and equation (4) and calculate UL HARQ Tx skew v and the UL HARQ feedback shift w describing in form 2.When bursty data assignment information or HARQ feedback is received, for burst transfer or retransmit and consider UL HARQ Tx skew v.

When retransmitting UL bursty data in asynchronous HARQ, the position by bursty data assignment information and be included in the retransmission time that repeating transmission designator in bursty data assignment information is indicated UL bursty data.Meanwhile, if retransmit UL bursty data in synchronous HARQ, in the #m of #p frame subframe, retransmit.With reference to form 2, according to subframe index l and frame index k, determine frame index p.

UL HARQ Tx skew v is illustrated in DL bursty data assignment information or the transmitting time of DL HARQ feedback and the time interval between the transmitting time of UL bursty data, and this skew v is expressed as the quantity of frame.Consider that Gap1 ' determines UL HARQ Tx skew v, by the TTI of bursty data assignment information or HARQ feedback is replaced to the TTI that becomes DL bursty data, the N in equation (2) _tTI, calculate Gap1 '.Usually, bursty data assignment information or HARQ feedback are crossed over a subframe.

In UL HARQ, UL HARQ Tx skew v is set so that Gap1 ' is equal to or greater than the Tx processing time.For example, if Gap1 ' is equal to or greater than the Tx processing time, v=0, if instead Gap1 ' is less than Tx processing time, v=1.

UL HARQ feedback shift w is illustrated in that UL bursty data sends completing and for the time interval between the transmitting time of the DL HARQ feedback of UL bursty data, this skew w is expressed as the quantity of frame.Consider that Gap2 ' determines UL HARQ feedback shift w, in equation (4), for DL HARQ operation, by the TTI of UL bursty data being replaced with to the TTI of HARQ feedback, calculate Gap2 '.

In UL HARQ, w is set so that Gap2 ' is equal to or greater than the Rx processing time.For example, if Gap2 ' is equal to or greater than the Rx processing time, w=0, if instead Gap2 ' is less than Rx processing time, w=1.

As mentioned above, according to the signal handling capacity of the TTI (TTI of bursty data or feedback) of HARQ operation and the system (reflector and receiver) in FDD, determine UL HARQ Tx skew v and ULHARQ feedback shift w.Can preset or broadcast the information about signal handling capacity by system.Can also will according to system operation scheme, in system configuration information, predefined value be broadcast as to w and v is interpreted as the embodiment that another is exemplary.If frame index j, k and p are equal to or greater than N in form 2, superframe index s increases by 1, and frame index j, k and p are the values that the mould formula by describing in computation sheet 2 obtains.

In tdd mode, each frame comprises DL subframe and UL subframe.According to one exemplary embodiment of the present invention, the chain based on having less subframe fetches to divide has the link of more subframes, thereby with certain rule, DL subframe is mapped to UL subframe.By link, divide each region obtaining and comprise one or more subframes, and be mapped to a subframe of the link with less subframe.That is to say, according to one exemplary embodiment of the present invention, M subframe is divided into N region (M > N), and each subframe is in predefined mapping relations.To further describe these mapping relations below.

Fig. 5 be illustrate according to the present invention one exemplary embodiment, for 5: the diagram of the DL HARQ operation timing structure of 3TDD pattern.Tdd frame structure based on shown in Fig. 2 configures DL HARQ operation timing structure.

With reference to Fig. 5, reflector sends bursty data assignment information and DL bursty data in the #1 of #i frame DL subframe 500.Then receiver sends the HARQ feedback for DL bursty data in the #0 of #i frame UL subframe 510.If HARQ feedback is NACK signal, reflector is retransmitted bursty data in the #1 DL subframe 520 of # (i+1) frame.In #1 DL subframe 520, can also send the bursty data assignment information that indication DL bursty data sends.For the bursty data of retransmitting, receiver sends HARQ feedback in the #0UL subframe 530 of # (i+1) frame.

Although described in the above in DL period and UL period index DL subframe and UL subframe dividually respectively, can be in frame index DL subframe and UL subframe continuously.In this case, UL subframe index x replaces with the subframe index D+x in frame.D represents the duration of DL period.

Below with reference to form 3, above-mentioned HARQ operation is described.Form 3 illustrate according to the present invention one exemplary embodiment, for DL: UL=D: the DL HARQ operation timing structure of U pattern.D represents the duration (that is, the quantity of DL subframe) of DL period, and U represents the duration (that is, the quantity of UL subframe) of UL period.Form 3 can be for determining at least one the transmitting time in following: have the distribution A-MAP of bursty data assignment information, the HARQ subgroup of carrying bursty data, HARQ and feed back (ACK or NACK) and HARQ retransmission sub-packet.It should be understood, however, that form 3 should not be interpreted as limitation of the present invention.

Form 3

In form 3, D represents the quantity of DL subframe in each DL frame, and U represents the quantity of UL subframe in each UL frame, and N represents the quantity of frame in each superframe.If each superframe comprises four subframes, N is 4.F represents the sub-frame number of each frame, thus F=D+U.I, j and k represent frame index.L represents to carry the index of the DL subframe of bursty data assignment information, and m is illustrated in the index that bursty data wherein sends the subframe starting, and n represents to carry the index for the subframe of the HARQ feedback of DL bursty data.In addition, z represents DL HARQ feedback shift, and u represents DL HARQ Tx skew.Therefore, j=0,1 ..., N-1, k=0,1 ..., N-1, l=0, N _a-MAP..., N _a-MAP(ceil (D/N _a-MAP)-1), m=0,1 ..., D-1, n=0,1 ..., U-1, z=0,1 ..., z _max-1, and u=0,1 ..., u _max-1.

N _a-MAPrepresent to send the period of bursty data assignment information.If send bursty data assignment information in each DL subframe, N _a-MAPbe 1, and the scope of l is from 0 to D-1.If sending bursty data assignment information in a DL subframe, N _a-MAP2.In this case, l=0,2 ..., 2 (ceil (F/2)-1).

According to the contextual definition parameter K between D and U.For example, K is defined as equation (6) or equation (7).Depend on the system bandwidth of considering, the transmit time segments N that processes period and bursty data assignment information in system _a-MAP, K can become K _cor K _f.K _cmean by use the round up value that function ceil () calculates and K _fmean the value by using downward bracket function floor () to calculate.How to determine that K depends on system configuration.Although K is K normally _f, but can be odd number and D < U/N at F _a-MAPcondition under use K _c.

$K_c=\left\{\begin{array}{c}\mathrm{ceil}\left(\frac{D-U}{2}\right)\mathrm{forD}\&GreaterEqual;U\\ -\mathrm{ceil}\left(\frac{U-D}{2}\right)\mathrm{forD}<U\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(6\right)$

$K_f=\left\{\begin{array}{c}\mathrm{floor}\left(\frac{D-U}{2}\right)\mathrm{forD}\&GreaterEqual;U\\ -\mathrm{floor}\left(\frac{U-D}{2}\right)\mathrm{forD}<U\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(7\right)$

If D is equal to or greater than U, K _cand K _fbe 0 or on the occasion of, otherwise they are negative values.

When F is even number, ceil () and floor () function operate with the same manner, so K _cand K _fequate.According to another embodiment, K can be set as follows.If D < is U, K=-ceil{ (U-D)/2}, if D >=, K=floor{ (D-U)/2}.

In TDD DL HARQ sending and receiving, the bursty data that the DL bursty data assignment information indication sending in the #l of #i frame DL subframe starts in the #m of #i frame DL subframe sends.When sending bursty data assignment information in each DL subframe (, N _a-MAP=1) bursty data that, the indication of bursty data assignment information starts in DL subframe sends.That is to say m=l.On the other hand, when when sending bursty data assignment information in a DL subframe (, N _a-MAP=2) bursty data that, the indication of the bursty data assignment information in #lDL subframe starts in #l or # (l+1) DL subframe sends.That is to say, m is l or (l+1).Indication l or relevant information (l+1) are included in bursty data assignment information.

The bursty data of indicating by bursty data assignment information can occupy one or more DL subframes.

The HARQ feedback of the bursty data starting for its #m DL subframe that is sent in #i frame sends in the #n of #j frame UL subframe.According to DL: UL (D: U) ratio, n can be mapped to one or more DL subframe index.If D≤U, each UL subframe is mapped to a DL subframe.On the other hand, if D > is U, each UL subframe is mapped to one or more DL subframes.As defined in form 3, according to K and m, determine subframe index n, and determine frame index j according to i and z.That is to say, form 3 is according to DL: UL ratio is defined in a DL subframe index in frame and the certain mapping relations between UL subframe index.The situation that form 3 illustrates D=U is included in the situation of D <=U.In another embodiment, because K equals zero the in the situation that of D=U, so can being both included in the situation of D <=U, the situation of D=U was also included within the situation of D >=U.Presents has been explained the HARQ timing in the situation that D=U is included in D <=U.

As the description of the FDD DL HARQ timing architecture of reference table lattice 1 above, z represents DL HARQ feedback shift.In order to save enough Rx processing times, with z, adjust the index of the frame that carries HARQ feedback.Because DL subframe and UL subframe replace along time shaft in frame, so use the Gap3 calculating by equation (8) to determine DL HARQ feedback shift z.

Gap3＝M _DATA-a-N _TTI+b.....(8)

M wherein _dATAthe quantity of the subframe of bursty data is carried in expression, and a is illustrated in the index of the subframe that wherein bursty data transmission starts, N _tTIthe TTI that represents bursty data, and b represents to carry the index for the subframe of the HARQ feedback of bursty data.Therefore, with reference to form 3, M _dATA=D, a=m and b=n.

In TDD DL HARQ, adjust DL HARQ feedback shift z so that the Gap3 describing is equal to or greater than the Rx processing time in equation (8).For example, if Gap3 is equal to or greater than the Rx processing time, z=0, if instead Gap3 is less than Rx processing time, z=1.

When retransmitting DL bursty data in asynchronous HARQ, by the repeating transmission that is included in repeating transmission designator in bursty data assignment information and indicates DL bursty data.Meanwhile, if retransmit DL bursty data in synchronous HARQ, in the #m of #k frame subframe, retransmit.With reference to form 3, by carrying index and the DL HARQ Tx skew u of the frame of feedback, determine frame index k.If the bursty data assignment information of the repeating transmission of indication DL bursty data is sent out, based on bursty data assignment information, retransmit.

As what describe with reference to the FDD DL HARQ timing architecture of form 1 before, u represents the DL HARQ Tx skew definite according to the Gap4 being calculated by equation (9).Gap4 is illustrated in the transmitting time of the HARQ feedback in tdd mode and the time slot between the beginning of data re-transmitting.

Gap4＝M _CTRL-b-1+a.....(9)

M wherein _cRTLrepresent to carry the quantity of the subframe of HARQ feedback, b represents to carry the index of the subframe of HARQ feedback, and a is illustrated in wherein the index of the subframe that starts of bursty data that will repeating transmission after HARQ feedback.Therefore, M in form 3 _cRTL=U, b=n, and a=m.

In TDD DL HARQ, adjust DL HARQ Tx skew u so that the Gap4 calculating by equation (9) is equal to or greater than the Tx processing time.For example,, if Gap4 is equal to or greater than Tx processing time, u=0.On the contrary, if Gap4 is less than Tx processing time, u=1.In the situation of u=1, this means and there is no time enough for the treatment of signal transmission, thereby HARQ retransmission time is delayed a frame.

In form 3, frame index j and k are equal to or greater than the total quantity N of the frame of each superframe, and superframe index s increases by 1, and frame index j and k are the values obtaining by the modulo operation shown in computation sheet 3.

Following situation can also be thought of as to another one exemplary embodiment of the present invention: according to DL-UL subframe mapping relations, the TTI (TTI of bursty data or feedback) of HARQ operation and/or the signal handling capacity of system, determine DL HARQ feedback shift z and DL HARQ Tx skew u.

Fig. 6 is the diagram that HARQ operation timing structure according to the present invention one exemplary embodiment, that send for the UL bursty data of TDD is shown.

With reference to Fig. 6, when the bursty data assignment information in the #1 DL subframe 600 at #i frame is received, reflector sends UL bursty data in the #0UL of #i frame subframe 610.According to the bursty data receiving, whether have error, receiver sends the HARQ feedback for UL bursty data in the #1 DL subframe 620 of # (i+1) frame.If HARQ feedback is NACK signal, reflector is retransmitted bursty data in the #0UL subframe 630 of # (i+1) frame.If DL subframe 620 is carried the bursty data assignment information that indication UL bursty data is retransmitted, according to bursty data assignment information, carry out the repeating transmission of UL bursty data.

Although described in the above in DL period and UL period index DL subframe and UL subframe dividually respectively, can be in frame index DL subframe and UL subframe continuously.In this case, UL subframe index x replaces with the subframe index D+x in frame.D represents the duration of DL period.

Form 4 illustrates UL HARQ operation timing structure according to the present invention one exemplary embodiment, in tdd mode.Form 4 can be for determining at least one the transmitting time in following: have the distribution A-MAP of bursty data assignment information, the HARQ subgroup of carrying bursty data, HARQ and feed back (ACK or NACK) and HARQ retransmission sub-packet.It should be understood, however, that form 4 should not be interpreted as limitation of the present invention.

Form 4

In form 4, D represents the DL sub-frame number of each DL frame, and U represents the UL sub-frame number of each UL frame, and K is according to the relation between D and U, as the parameter of equation (6) or equation (7) definition, and N represents the number of frames of each superframe.If each superframe comprises four subframes, N is 4.I, j, k and p represent frame index.L represents to carry the index of the DL subframe of bursty data assignment information, and m is illustrated in the index that bursty data wherein sends the subframe starting, and w represents UL HARQ feedback shift, and v represents UL HARQ Tx skew.Therefore, i=0,1 ..., N-1, j=0,1 ..., N-1, k=0,1 ..., N-1, p=0,1 ..., N-1, l=0, N _a-MAP..., N _a-MAP(ceil (D/N _a-MAP)-1), m=0,1 ..., U-1, w=0,1 ..., w _max-1, and v=0,1 ..., v _max-1.

N _a-MAPrepresent to send the period of bursty data assignment information.If send bursty data assignment information in each DL subframe, N _a-MAPbe 1, and the scope of l is 0 to D-1.If sending bursty data assignment information in a DL subframe, N _a-MAP2.In this case, l=0,2 ..., 2 (ceil (D/2)-1).

In TDD UL HARQ sending and receiving, the bursty data that the UL bursty data assignment information indication sending in the #l of #i frame DL subframe starts in the #m of #j frame UL subframe sends.According to DL: UL (D: U) ratio and assignment information period N _a-MAP, m can be mapped to one or more DL subframes.If ceil is (D/N _a-MAP)>=U, that is, if carry the quantity that the quantity of the DL subframe of DL control information (bursty data assignment information or HARQ feedback) is equal to or greater than UL subframe, each UL subframe is mapped to one or more DL subframes.On the other hand, if ceil is (D/N _a-MAP) < U, that is, if carry the quantity that the quantity of the DL subframe of DL control information (bursty data assignment information or HARQ feedback) is less than UL subframe, each UL subframe is mapped to one or more UL subframes.

If carry the quantity (ceil (D/N that the quantity of the DL subframe of bursty data assignment information is equal to or greater than UL subframe _a-MAP)>=U), can send by the bursty data in a UL subframe by one or more DL subframe indications.That is to say, if l is less than K, the bursty data that indication of the bursty data assignment information in #lDL subframe starts in #0 UL subframe sends.If l is equal to or greater than K and is less than U+K, the bursty data that indication of the bursty data assignment information in #l DL subframe starts in # (l-K) UL subframe sends.If l is equal to or greater than U+K, the bursty data that indication of the bursty data assignment information in #l DL subframe starts in # (U-1) UL subframe sends.

On the other hand, if carry the quantity (ceil (D/N that the quantity of the DL subframe of bursty data assignment information is less than UL subframe _a-MAP) < U), the bursty data assignment information in DL subframe can indicate the bursty data in one or more UL subframes to send.For example, the indication of the bursty data assignment information in #0DL subframe is arrived # (l-K+N at #0 _a-MAP-1) bursty data in UL subframe sends.In bursty data assignment information, send the relevant information about indication.

If only send bursty data assignment information (ceil (D/N in a DL subframe _a-MAP)=1), the bursty data of DL subframe indication in all UL subframes sends.Can indicate by bursty data assignment information the TTI of bursty data, and determine frame index j according to i and v.

As the description of the FDD UL HARQ timing architecture of reference table lattice 2 above, v represents that UL HARQTx skew and w represent UL HARQ feedback shift.After bursty data assignment information or HARQ feedback is received, UL HARQ Tx skew v is used to transmitting time or the retransmission time of bursty data.As mentioned above, the index that UL HARQ Tx skew v is used for adjusting the frame that carries bursty data is to guarantee enough Tx processing times.

In TDD UL HARQ, according to Gap4 ', determine UL HARQ Tx skew v, Gap4 ' by calculating as follows in equation (9): by M _cTRLreplace with the quantity D of carrying such as the DL subframe of the control information of bursty data assignment information or HARQ feedback, b is replaced with to the index l of the subframe of carrying bursty data assignment information or HARQ feedback and a replaced with to the index m that carries initialization bursty data or retransmit the subframe of bursty data.

If Gap4 ' is less than bursty data after HARQ feedback is received and sends the desired Tx processing time, v=1, otherwise, v=0.

In TDD UL HARQ, in order to adjust the transmitting time that HARQ feeds back after receiving bursty data, according to Gap3 ', determine UL HARQ feedback shift w, Gap3 ' be by equation (8) by M _dATAinstead of the quantity U that carries the subframe of bursty data, calculate.

If Gap3 ' is less than the desired Rx of the transmission processing time that HARQ feeds back after UL bursty data is received, w=1, otherwise, w=0.

HARQ feedback for the bursty data that sends in the #m of #j frame UL subframe sends in the #lDL of #k frame subframe.That is to say, in thering is the subframe of same index, send bursty data assignment information and HARQ feedback.By j, determine k herein.

When retransmitting UL bursty data in asynchronous HARQ, by being included in repeating transmission designator in bursty data assignment information, indicate the retransmission time of UL bursty data.Meanwhile, if retransmit UL bursty data in synchronous HARQ, in the #m of #p frame subframe, retransmit.With reference to form 4, by UL HARQ Tx skew v and the index k that carries the frame of HARQ feedback, determine frame index p.If frame index j, k and p are equal to or greater than the quantity N of the frame of each superframe, superframe index s increases by 1, and frame index j, k and p are the values obtaining by the modulo operation shown in computation sheet 4.

Although described in the above by determining that to the equation of form 4 HARQ regularly with form 1, but can be by form stores be determined to HARQ regularly to reflector and receiver and from the end value that this form reads expectation, described form has the end value corresponding to all possible input value (that is, the quantity of DL/UL subframe, subframe index and processing time etc.) to form 4 according to form 1.

the calculating of HARQ feedback and Tx skew

To the one exemplary embodiment of computed HARQ feedback shift w and z and HARQ Tx skew v and u be described below.

Can determine HARQ feedback shift w and z and HARQ Tx skew v and u according to the mapping relations between DL subframe and UL subframe, the TTI (TTI of bursty data or feedback) of HARQ operation and/or the signal handling capacity of system (reflector and/or receiver).In another one exemplary embodiment of the present invention, can preset and broadcast HARQ feedback shift by system, rather than use above-mentioned information to calculate.As given a definition, relate to the skew of HARQ operation.

For the HARQ feedback shift z of FDD DL HARQ operation and at least one of HARQ Tx skew u, by following formula, calculate:

$z=\left\{\begin{array}{cc}0,& \mathrm{for\; ceil}(F/2)-N_{\mathrm{TTI}}\&GreaterEqual;\mathrm{Rx}\_\mathrm{Time}1\\ 1,& \mathrm{for\; ceil}(F/2)-N_{\mathrm{TTI}}<\mathrm{Rx}\_\mathrm{Time}1\end{array}\right.$

$u=\left\{\begin{array}{cc}0,& \mathrm{for\; floor}(F/2)-1\&GreaterEqual;\mathrm{Tx}\_\mathrm{Time}1\\ 1,& \mathrm{for\; floor}(F/2)-1<\mathrm{Tx}\_\mathrm{Time}1\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(10\right)$

Wherein Rx_Time1 represents the Rx processing time of DL bursty data, and the disposal ability by receiver determines, and Tx_Time1 represents the Tx processing time of DL bursty data, by the disposal ability of reflector, determines.Rx_Time1 and Tx_Time1 can jointly be called the processing time of bursty data.The Rx of bursty data processes and comprises, for example, multiple-input and multiple-output (MIMO) Rx processes, demodulation code.The Tx of bursty data processes and comprises, for example, coding, modulation and MIMO Tx process.In DL HARQ, receiver is that MS and reflector are BS conventionally.Herein, HARQ feedback TTI is assumed to a subframe and bursty data transmission time interval TTI is expressed as N _tTI.

For the HARQ feedback shift w of FDD UL HARQ operation and at least one of HARQ Tx skew v, by following formula, calculate:

$v=\left\{\begin{array}{cc}0,& \mathrm{for\; ceil}(F/2)-1\&GreaterEqual;\mathrm{Tx}\_\mathrm{Time}2\\ 1,& \mathrm{for\; ceil}(F/2)-1<\mathrm{Tx}\_\mathrm{Time}2\end{array}\right.$

$w=\left\{\begin{array}{cc}0,& \mathrm{for\; floor}(F/2)-N_{\mathrm{TTI}}\&GreaterEqual;\mathrm{Rx}\_\mathrm{Time}2\\ 1,& \mathrm{for\; floor}(F/2)-N_{\mathrm{TTI}}<\mathrm{Rx}\_\mathrm{Time}2\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(11\right)$

Wherein Rx_Time2 represents the Rx processing time of UL bursty data, and the disposal ability by receiver determines, and Tx_Time2 represents the Tx processing time of UL bursty data, by the disposal ability of reflector, determines.Rx_Time2 and Tx_Time2 can jointly be called the processing time of bursty data.In UL HARQ, receiver is that BS and reflector are MS conventionally.

For the HARQ feedback shift z of TDD DL HARQ operation and at least one of HARQ Tx skew u, by following formula, calculate:

$z=\left\{\begin{array}{cc}0,& \mathrm{for\; D}-m-N_{\mathrm{TTI}}+n\&GreaterEqual;\mathrm{Rx}\_\mathrm{Time}3\\ 1,& \mathrm{for\; D}-m-N_{\mathrm{TTI}}+n<\mathrm{Rx}\_\mathrm{Time}3\end{array}\right.$

$u=\left\{\begin{array}{cc}0,& \mathrm{for\; U}-n-1+m\&GreaterEqual;\mathrm{Tx}\_\mathrm{Time}3\\ 1,& \mathrm{for\; U}-n-1+m<\mathrm{Tx}\_\mathrm{Time}3\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(12\right)$

Wherein Rx_Time3 and Tx_Time3 represent respectively Rx processing time and the Tx processing time of DL bursty data.Rx_Time3 and Tx_Time3 can jointly be called the processing time of bursty data.

For the HARQ feedback shift w of TDD UL HARQ operation and at least one of HARQ Tx skew v, by following formula, calculate:

$v=\left\{\begin{array}{cc}0,& \mathrm{for\; D}-l-1+m\&GreaterEqual;\mathrm{Tx}\_\mathrm{Time}4\\ 1,& \mathrm{for\; D}-l-1+m<\mathrm{Tx}\_\mathrm{Time}4\end{array}\right.$

$w=\left\{\begin{array}{cc}0,& \mathrm{for\; U}-m-N_{\mathrm{TTI}}+l\&GreaterEqual;\mathrm{Rx}\_\mathrm{Time}4\\ 1,& \mathrm{forU}-m-N_{\mathrm{TTI}}+l<\mathrm{Rx}\_\mathrm{Time}4\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(13\right)$

Wherein Rx_Time4 and Tx_Time4 represent respectively Rx processing time and the Tx processing time of UL bursty data.Rx_Time4 and Tx_Time4 can jointly be called the processing time of bursty data.

In synchronous HARQ, the Tx processing time of UL HARQ operation is different for initialization and repeating transmission.That is to say, depend on that bursty data is initialization or repeating transmission, the Tx_Time4 of the Tx_Time2 of equation (11) and equation (13) can replace with Tx_Time_NewTx and Tx_Time_ReTx.Tx_Time_NewTx represents the Tx processing time of initialization bursty data, and Tx_Time_ReTx represents to retransmit the Tx processing time of bursty data.As previously mentioned, although according to the bursty data assignment information initialization bursty data of encoding, can come coding NACK signal to trigger the bursty data of its repeating transmission by the initialization bursty data based on coding.Therefore, for initialization, consider the different Tx processing times with retransmitting, can adjust HARQ Tx skew.

According to retransmitting, trigger, the Tx processing time of retransmitting bursty data can be Tx_Time_ReTx1 or Tx_Time_ReTx2.Can consider in two ways to retransmit and trigger.In first method, only send NACK signal, and in second method, send NACK signal and the assignment information for retransmitting.Tx_Time_ReTx1 is for the previous case, and Tx_Time_ReTx2 is for latter event.

Similarly, can be according to the Tx processing time of initialization or repeating transmission, the UL HARQ Tx skew of describing in form 2, form 4, equation (11) and equation (13) can be used as v _newand v _rxTxadjust dividually.V _newthe skew of the ULHARQ Tx for initialization bursty data of considering Tx processing time Tx_Time_NewTx, and v _rxTxto consider being offset for retransmitting the UL HARQ Tx of bursty data of Tx processing time Tx_Time_ReTx.

tradition support mode

By use predefined vertical shift in superframe structure, use the mobile radio system of the senior air interface of IEEE (IEEE) 802.16m (Advanced Air Interface, AAI) to coexist with IEEE 802.16e tradition (legacy) mobile radio system.Particularly, in order to compensate inconsistent with 16e frame, together with DL subframe and UL subframe, each 16m frame comprises vertical shift.In this case, the DL with the period of IEEE 802.16m pattern operation according to network node and MS: UL ratio, the HARQ operation timing structure based on describing in form 3 and form 4 configure TDD HARQ operation timing structure.

DL according to network node and MS with the period of IEEE 802.16m pattern operation: UL ratio determines that DL is to UL subframe mapping relations.In other words, according to DL: UL ratio is identified for HARQ index and quantity operation, the subframe in transmit time segments.Yet, because IEEE 802.16e pattern and IEEE 802.16m pattern coexist in a frame, not according to the DL of 16m pattern period: UL ratio carries out index to frame, but according to the whole DL of TDD system: UL ratio carries out index to frame.

Pass through respectively D ' and U ' and represent the quantity of the DL subframe in TDD system and the quantity of UL subframe.According to the DL of TDD system: UL ratio, i.e. D ': U ' comes to subframe index l ', m ' and n ' numbering.In addition, by D and U, represent the quantity of the DL subframe in the 16m pattern period and the quantity of UL subframe respectively.Subsequently, according to the DL of 16m pattern period: UL ratio, i.e. D: U, gives subframe index l ', m and n numbering.

For except the 16e pattern tradition 16m pattern period the period, HARQ operation timing is followed form 3 and form 4.Yet, by use subframe index l ', m ', n ' to come according to HARQ feedback shift z or w and HARQ Tx skew u or definite frame index i, j and the k numbering of v according to D ': U '.

Fig. 7 be illustrate according to the present invention one exemplary embodiment, in the situation of two different coexistence of systems, 5: the HARQ operation timing structure that the DL bursty data in 3TDD pattern sends.

With reference to Fig. 7, (two DL subframes and UL frequency division multiplex (FDM) region are used to support legacy system, tradition support mode) pattern, and for the residue link period traditional support mode, subframe is being re-started to index except those.More particularly, in whole TDD system, exist #0 to #4DL subframe.Therefore,, in the 16m pattern period, #2, #3 and #4DL subframe are renumberd respectively as #0, #1 and #2.And by using FDM, UL period and DL period coexist, and the 16m pattern period crosses over the whole UL period.Therefore, 16m model frame finally comprises three DL subframes and three UL subframes.

With reference to Fig. 7, because D=3 and U=3, so K=0.D ' be 5 and U ' be 3.In TDDDL HARQ bursty data sends, in the #0 of #i frame DL subframe, send bursty data assignment information and bursty data.In the #0 of #i frame UL subframe, send the HARQ feedback for bursty data.In the #0DL subframe of # (i+1) frame, there is the repeating transmission of HARQ bursty data, and in the #0UL subframe of # (i+1) frame, send for retransmitting the HARQ feedback of bursty data.In the situation of the Fig. 7 illustrating, Tx processing time and each in the processing time of Rx are considered two subframes.

Fig. 8 illustrate according to the present invention one exemplary embodiment, in the situation of two different coexistence of systems, 5: the HARQ operation timing structure that the UL bursty data in 3TDD pattern sends.

With reference to Fig. 8, because according to frame structure D=3 and the U=3 of Fig. 7, so K=0.In TDD ULHARQ bursty data sends, in the #0 of #i frame DL subframe, send bursty data assignment information, and in the #0 of #i frame UL subframe, send UL bursty data according to bursty data assignment information.In the #0 DL subframe of # (i+1) frame, send the HARQ feedback for UL bursty data, and the repeating transmission of UL bursty data occurs in the #0UL subframe of # (i+1) frame.In #0 DL subframe, can send the bursty data assignment information that indication UL bursty data sends.In the situation of the Fig. 8 illustrating, Tx processing time and each in the processing time of Rx are considered two subframes.

Resource for IEEE 802.16e wireless communication system is assigned to the period corresponding to the vertical shift of Fig. 7 and Fig. 8.

According to carrying the index of subframe of bursty data assignment information or the index that bursty data starts the subframe that will be sent out therein, arrange as the HARQ operation timing structure of form 1 to form 4 suggestions, and no matter the TTI of bursty data.Therefore,, because in synchronous HARQ, in predefined subframe, periodically send HARQ feedback, so receiver is saved electric power, and needn't power consumption for monitoring the reception of HARQ feedback, and effectively support colocated coexist (Co-Located Coexistence, CLC).

long TTI

In another one exemplary embodiment of the present invention, with respect to form 1 to the HARQ timing architecture of describing in form 4, in order to support ACK timing more early, when bursty data occupies two or more subframes,, when using long TTI, HARQ feedback time determined in the index of the subframe that can finish according to bursty data transmission therein, rather than the index of the subframe starting according to bursty data transmission therein.This regularly determines can be for the ACK timing more early in asynchronous HARQ conventionally.

Be adjusted at as follows the HARQ feedback time of definition in form 1.The index m ' (=m+N of the last subframe based on TTI _tTI-1), rather than the index m of the first subframe of TTI determine the index of subframe and the index of frame that carries HARQ feedback.

Fig. 9 illustrates HARQ operation timing structure according to the present invention another one exemplary embodiment, that send for the DL bursty data of fdd mode.Suppose N herein _tTI=4, F=8, Tx processing time and each in the processing time of Rx are three or subframe still less, DL HARQ feedback shift z is 0, and DL HARQ Tx skew u is 0.

With reference to Fig. 9, the indication of the bursty data assignment information that sends in the #1 of #i frame DL subframe is the transmission to the DL bursty data in the TTI 900 of #4DL subframe in the #1 of #i frame DL subframe.In the #0 UL subframe 910 of # (i+1) frame of the 4th DL subframe that is mapped to #i frame, send the HARQ feedback for DL bursty data, in the 4th DL subframe of described #i frame, DL bursty data sends and finishes.That is to say n=0 (=ceil (1+4-1+4) mod 8) and j=i+1 (=(i+floor (ceil (1+4-1+4)/8) mod 4))).In synchronous HARQ, the transmission of bursty data 920 originates in previous bursty data and sends identical subframe position, that is, and and in the #1 DL subframe of # (i+2) frame.

As mentioned above, can determine HARQ feedback regularly according to last the index m ' carrying in one or more subframes of bursty data, rather than the index m of first subframe of the subframe in form 1 and form 2.

Similarly, in order to obtain ACK timing more early, in the DL HARQ operation timing structure in tdd mode, can carry by application the index m ' (=m+N of last subframe of bursty data _tTI-1) determine HARQ feedback time, rather than the index m of the first subframe of the bursty data of form 3.

Figure 10 illustrates HARQ operation timing structure according to the present invention another one exemplary embodiment, that send for the DL bursty data of tdd mode.Suppose N herein _tTI=4, D=4, U=4, Tx processing time and each in the processing time of Rx are three or subframe still less, K=0, and z=0.

With reference to Figure 10, the indication of the bursty data assignment information that sends in the #0 of #i frame DL subframe is the transmission to the DL bursty data in the TTI 1000 of #3 DL subframe in the #0 of #i frame DL subframe.HARQ feedback for DL bursty data sends in the #3 of #i frame UL subframe 1010, is mapped to the #3 DL subframe of #i frame according to form 3.That is to say n=0 (=3-0) and j=i (=(i+0) mod 4).In synchronous HARQ, the repeating transmission of the bursty data after HARQ feedback starts from sending identical subframe position with previous bursty data, that is, and and in the #0 DL subframe of # (i+2) frame.

Yet, according to the DL of the TDD HARQ operation timing structure for long TTI: UL ratio and Tx/Rx processing time, differently determine HARQ feedback time.As example, in the Tx/Rx processing time, be that 3 subframes and TTI cover whole DL in the situation that of the period, describe for 5: the HARQ feedback of the long TTI (5 subframes) of 3TDD DLHARQ operation is regularly.

If starting of sending according to bursty data arranges HARQ feedback regularly, in the #0UL of next frame subframe, send the HARQ feedback that is sent in the bursty data that #0DL subframe starts for it.On the other hand, if the end sending according to bursty data arranges HARQ feedback regularly, in the #3UL of next frame subframe, send the HARQ feedback that is sent in the bursty data that #4DL subframe finishes for it.Thereby, at long TTI, be used for 5: the in the situation that of 3TDD DL HARQ, by beginning rather than the end based on bursty data transmission sending based on bursty data, decide HARQ feedback regularly, for long TTI provides the more HARQ feedback timing of morning.

To describe for 4 as another example: the HARQ feedback of the long TTI of 4 subframes of 4TDD DL HARQ regularly.

If starting of sending according to bursty data arranges HARQ feedback regularly, in the #0UL of next frame subframe, send the HARQ feedback that is sent in the bursty data that #0DL subframe starts for it.On the other hand, if the end sending according to bursty data arranges HARQ feedback regularly, in the #3UL of next frame subframe, send the HARQ feedback that is sent in the bursty data that the 4th DL subframe finishes for it.Be different from 5: 3TDD DL HARQ, by the end sending based on bursty data rather than the beginning sending based on bursty data, 4: 4TDD DL HARQ is provided for the HARQ feedback timing more early of long TTI.

Therefore, in one exemplary embodiment of the present invention, according to DL: UL ratio and Tx/Rx processing time are selected suitable HARQ operation timing structure.More particularly, when at form 1 when determining that HARQ feedback regularly in form 4, the index m ' (=m+N of last subframe that can be based on carrying one or more subframes of bursty data _tTI-1) rather than the index m of the first subframe of described subframe make described decision.Information about the HARQ operation timing structure selected can be informed with signal, for example, in DL Common Control Channel, as system information, informs.

the change of feedback shift and Tx skew

Below by the DL HARQ operation timing structure in description tdd mode and other one exemplary embodiment of UL HARQ operation timing structure.More specifically, by describing according to the position of carrying the subframe of DL bursty data or UL bursty data, change HARQ feedback shift and HARQ Tx skew.

Figure 11 and Figure 12 illustrate and work as N _a-MAP=1 and HARQ operation timing structure during D+U=8.

Figure 11 is illustrated in D: U=5: 3 and TTI be the HARQ operation timing structure in the situation of a subframe.With reference to Figure 11, when the Tx/Rx processing time is 2 subframes, HARQ feedback/Tx skew is 0.That is to say, because can process the transmission (because Gap3 and Gap4 surpass 2) of each DL subframe completely in two subframes, so the UL that relevant UL is sent in below occurs in the period and not free the delay.Similarly, can in two subframes, process the transmission (because Gap3 and Gap4 surpass 2) of each UL subframe completely, thereby the DL that relevant DL is sent in below occurs in the period and not free the delay.

Yet if the Tx/Rx processing time is 3 subframes, the HARQ ULTx relevant to #4DL subframe is regularly delayed a frame.This be because, although utilize 3 subframes to process the transmission of #4DL subframes, be difficult to execution UL transmission 2 (=5-4-1+2) subframes in, described 2 subframes are the intervals to corresponding #2UL subframe.Therefore, the UL in the #2UL subframe corresponding to #4DL subframe sends and is delayed a frame, thereby this UL occurs in the #2UL subframe of ensuing # (i+1) frame.

Figure 12 is illustrated in D: U=3: 5 and TTI be the HARQ operation timing structure in the situation of a subframe.With reference to Figure 12, when the Tx/Rx processing time is 2 subframes, HARQ feedback/Tx skew is 0.Yet, if the Tx/Rx processing time is 3 subframes, Gap=3-0-1-0=2.Therefore, the HARQ UL Tx in the #0 UL subframe relevant to #0DL subframe is regularly delayed a frame.Because Gap=5-4-1+2=2, is regularly delayed a frame so the DL in the #2DL subframe relevant to #4UL subframe sends.This is because each Gap is less than Tx processing time or Rx processing time.

Figure 13 illustrates the HARQ operation timing structure when D+U=7.

Figure 13 (a) is illustrated in D: U=4: 3, N _a-MAP=1 and TTI be the HARQ operation timing structure in the situation of a subframe.With reference to Figure 13 (a), when the Tx/Rx processing time is 2 subframes, HARQ feedback/Tx skew is 0.If the Tx/Rx processing time is 3 subframes, corresponding to the HARQ UL Tx of the #2 subframe of #3DL subframe, be regularly delayed a frame, because Gap=4-3-1+2=2.

Figure 13 (b) is illustrated in D: U=3: 4, N _a-MAP=1 and TTI be the HARQ operation timing structure in the situation of a subframe.D+U is odd number and D < U, uses the K based on ceil () _c(=-1).With reference to Figure 13 (b), when the Tx/Rx processing time is 2 subframes, HARQ feedback/Tx skew is 0.If the Tx/Rx processing time is 3 subframes, be regularly delayed a frame with the HARQ UL Tx of the corresponding #0UL subframe of #3DL subframe.

Figure 14 illustrates and works as N _a-MAP=1 and HARQ operation timing structure during D+U=6.

Figure 14 (a) is illustrated in D: U=4: 2 and TTI be the HARQ operation timing structure in the situation of a subframe.With reference to Figure 14 (a), when the Tx/Rx processing time is 2 subframes, the HARQ UL Tx relevant to #3DL subframe is regularly delayed a frame.If the Tx/Rx processing time is 3 subframes, the HARQ DL Tx relevant to #0UL subframe is regularly delayed a frame, and the HARQ UL Tx relevant with #2DL subframe to #1DL subframe regularly and HARQ DL Tx be regularly delayed a frame.In addition, the HARQ UL Tx relevant to #3DL subframe is regularly delayed a frame.

Figure 14 (b) is illustrated in D: U=3: 3 and TTI be the HARQ operation timing structure in the situation of a subframe.With reference to Figure 14 (b), when the Tx/Rx processing time is 2 subframes, HARQ feedback/Tx skew is 0.Yet if this Tx/Rx processing time is 3 subframes, HARQ feedback/Tx skew is 1, this means the delay of a frame.

relay structure

Now by the HARQ operation timing structure being described in the mobile radio system of supporting relay structure.

When relay structure is supported, BS and MS directly or via at least one relay station (RS) communicate with one another.RS between BS and MS is divided into strange jumping RS and the even RS of jumping.Each RS comprises controller and at least one sending/receiving device, described controller is used for according to frame structure and the HARQ operation timing described are after a while determined to the HARQ Tx time, and described at least one sending/receiving device is for feeding back in the timed sending of being controlled by controller and reception bursty data assignment information, bursty data and HARQ.Data transfer representation is in the transfer of data between BS and RS or the transfer of data between RS and MS.

In one exemplary embodiment of the present invention, use description to the HARQ operation timing structure of the 16m pattern operation of RS and MS.

Figure 15 illustrate according to the present invention one exemplary embodiment, for supporting the frame structure of the mobile radio system of relay structure.

With reference to Figure 15, BS frame 1410 can comprise at least one in following: from BS directly send to MS DL access area 1412, from BS, send to the DL sending zone 1414, network code receiving area 1416, the UL access area 1418 receiving from MS of MS or RS and the UL reception area 1420 receiving from MS or RS.Tx district 1412 and 1414 and Rx district 1416,1418 and 1420 between insert gap 1422, for sending to the conversion of reception.

The strange RS of jumping frame 1430 comprises: send to the DL access area 1432 of MS, the DL sending area 1434 that sends to MS or the even RS of jumping, the DL reception area 1444 receiving from the even RS of jumping or BS, network code sending area 1438, the UL reception area 1440 receiving from MS or the even RS of jumping and the UL sending area 1442 that sends to the even RS of jumping or BS.Tx district inserts gap 1444 between 1434 HeRx districts 1436, and Rx district inserts gap 1446 between 1436 HeTx districts 1438, and inserts 1448 between 1440 HeTx districts 1442, Rx district, for the conversion between sending and receiving.

The even RS of jumping frame 1450 comprises: send to MS DL access area 1452, the DL reception area 1454 receiving from strange jumping RS, send to MS or very jump RS DL sending area 1456, network code reception area 1458, send to the UL sending area 1460 of strange jumping RS and from MS or very jump the UL reception area 1462 that RS receives.Tx district inserts gap 1464 between 1452 HeRx districts 1454, Rx district inserts gap 1466 between 1454 HeTx districts 1456, Tx district inserts gap 1468 between 1456 HeRx districts 1458, and Tx district inserts gap 1470 between 1460 HeRx districts 1462, for the conversion between sending and receiving.

As mentioned above, as in the previously described operation of the HARQ for traditional support mode, HARQ operation timing structure in the district at least one RS communicates by letter with MS therein, according to the DL-UL subframe mapping relations of subframe index, be according to the DL in corresponding RS Zheng Nei district: UL ratio is determined, in described district, at least one RS communicates by letter with MS, and determines frame index according to subframe index.

Figure 16 illustrates the TDD RS frame structure of the one exemplary embodiment according to the present invention.In Figure 16, tdd frame has the DL of 4: 4: and UL ratio (D ': 4) and not shown network code Tx/Rx district U '=4:.

With reference to Figure 16 (a), for strange #i frame of jumping RS, very jump RS and send #0, #1 and #2DL subframe to MS or low layer RS more, and receive another DL subframe from BS.The strange RS of jumping receives #0 and #1 UL subframe from MS, and sends other two UL subframes to more high-rise RS or BS.

With reference to Figure 16 (b), for even #i frame of jumping RS, the even RS of jumping the DL period start send #0 DL subframe and the end in the DL period sends #1 DL subframe to MS, and from more high-rise strange jumping RS, receive the DL subframe of two centres.The even RS of jumping finally receives #0 and #1 UL subframe from MS the UL period, and the UL period start send other two UL subframes to more high-rise strange jumping RS.

Figure 17 illustrate according to the present invention one exemplary embodiment, for the HARQ operation timing structure of the strange RS of jumping.D in Figure 17: U=3: 2.

Figure 17 (a) illustrates and considers K _fhARQ operation timing structure.With reference to Figure 17 (a), corresponding to the HARQ UL Tx of #2DL subframe, be regularly delayed a frame.

Figure 17 (b) illustrates and considers K _chARQ operation timing structure.With reference to Figure 17 (b), each corresponding to the HARQ UL Tx of #1DL subframe and #2DL subframe in is regularly delayed a frame.

Figure 18 illustrates HARQ operation timing structure one exemplary embodiment, jump RS for idol according to the present invention.D in Figure 18: U=2: 2.As learned from Figure 18, corresponding to the HARQ DLTx of #0UL subframe, be regularly delayed a frame.

As mentioned above, may need according to DL: UL ratio and Tx/Rx processing time select K value so that the timing of HARQ to be more early provided.Systems Operator can be according to such as DL: the system configuration information UL ratio and Tx/Rx processing time is selected suitable HARQ operation timing structure and suitable K value, and in DL Common Control Channel transmitting system configuration information.

hARQ timing architecture for long TTI

The HARQ timing architecture of the assignment information based on for long TTI is described with reference to form 3 and form 4 hereinafter.

In DL HARQ, if send the bursty data assignment information of the transmission of indicating the bursty data with long TTI in specific DL subframe, in the #0DL of next frame subframe, send long TTI and send.In the UL subframe that is mapped to the DL subframe of frame below (that is, carrying bursty data assignment information), send the HARQ feedback sending for long TTI.In UL HARQ, if the long TTI indicating by the bursty data assignment information sending in specific DL subframe is unavailable in being sent in identical frame, in the #0 of next frame UL subframe, send the UL bursty data that long TTI sends, and in the DL subframe of the frame below, having the HARQ sending for UL bursty data in the DL subframe (that is, carrying bursty data assignment information) of identical index feeds back.By determining frame index with above-mentioned HARQ Tx skew and HARQ feedback shift.For example,, when the bursty data assignment information indication DL sending in #l subframe (l is non-vanishing) has the long TTI (N that crosses over the whole DL period _tTIduring the transmission of bursty data=D), burst transmit originates in #0 DL subframe.Yet, if sent about the long TTI of bursty data assignment information indication of DL subframe l (l is not equal to 0), at identical frame transmission DL bursty data and bursty data assignment information, be not considered to indicate the long TTI in next frame to send.

With reference to the form 3 for DL HARQ, the bursty data assignment information sending in the #l of #i frame DL subframe is according to N _a-MAPthe bursty data of indication in #m DL subframe sends.Yet, in long TTI transmission situation, according to the TTI of DL subframe index m and bursty data, N _tTIdetermine the beginning that bursty data sends.Therefore, in the #h of #a frame DL subframe, start long TTI, and in the #f of #b frame UL subframe, send the HARQ feedback sending for long TTI.If UL HARQ feedback is NACK signal, in the #h of #c frame DL subframe or DL subframe below, there is the repeating transmission of bursty data.According to the index i, the l that obtain from bursty data assignment information and m, corresponding to UL subframe index n and the N of index i, l and m _tTIdetermine as follows frame index a, b and c and subframe index h and f.

If D-m>=N _tTI, the long TTI that starts to indicate by bursty data assignment information in the #m of #i frame subframe sends, thus a=i and h=m.On the other hand, if D-m < is N _tTI, the remaining DL frame period is less than N _tTIthereby, can not in #i frame, send bursty data.Therefore, in the #0 subframe of # (i+1) frame, start long TTI and send, and a=i+ and h=0.

For fear of concentrating of the UL HARQ feedback in specific UL subframe, according to the index l that carries the DL subframe of bursty data assignment information, determine the index f that carries the UL subframe that the UL HARQ for bursty data feeds back.Relation between l and f is followed the m of definition in form 3 and the relation between n.Therefore, in next frame, send UL HARQ feedback, thus b=a+1 (=i+2).

For example, if 5: in 3TDD structure, N _tTI=5, N _a-MAP=1, K=1 and Tx/Rx=3, the long TTI of the bursty data assignment information indication sending in starting by the #2DL subframe (l=2) at #i frame in #0 (h=0) the DL subframe of # (i+1) (a=(i+1)) frame sends, because D-m (5-2) < is N _tTI(=5) and in #1 (n=2-1) the UL subframe of # (i+2) (b=(i+2)) frame, send for the UL HARQ feedback of bursty data.

In another example, if long TTI crosses over the whole DL period in TDD DL, always in #0DL subframe, start bursty data and send.In this system, when the long TTI DL of bursty data assignment information indication in #l DL subframe sends, if l=0, the subframe index m and n and the frame index j that by form 3, calculate for HARQ operation.On the contrary, if l ≠ 0, the bursty data that indication of bursty data assignment information starts in the #0 subframe of # (i+1) frame of following #i frame sends.In the #nUL of #j frame subframe, send the HARQ feedback for bursty data.Herein, by equation (14) rather than calculate n and j by form 3.That is to say, the subframe index l based on bursty data assignment information and the frame index of bursty data (j+1) are determined the position (n, j) that HARQ feedback is sent out.

$n=\left\{\begin{array}{cc}0,& \mathrm{for}0\&le;l<K\\ l-K,& \mathrm{for\; K}\&le;l<U+K,\mathrm{For\; D}>U\\ U-1,& \mathrm{foor\; U}+K\&le;l<D\end{array}\right.$

n＝l-K，For?D≤U

j＝((i+1)+z)mod?N.....(14)

Wherein m=0 and N _tTI=D.Therefore, by equation (12) respectively by 0 and D replace with m and N _tTI, by equation (15), calculate z.Herein, the index l based on carrying the DL subframe of bursty data assignment information determines n.

$z=\left\{\begin{array}{cc}0,& \mathrm{for\; n}\&GreaterEqual;\mathrm{Rx}\_\mathrm{Time}\\ 1,& \mathrm{for\; n}<\mathrm{Rx}\_\mathrm{Time}\end{array}\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(15\right)\right.$

With reference to the form 4 for UL HARQ, the bursty data assignment information sending in the #l of #i frame DL subframe is according to N _a-MAPthe bursty data that indication starts in the #m of #j frame UL subframe with DL subframe index l sends.In long TTI transmission situation, according to the TTI of UL subframe index m and bursty data, N _tTIdetermine the beginning that bursty data sends.Therefore, in the #h of #a frame DL subframe, start long TTI and send, and in the #f of #b frame DL subframe, send the HARQ feedback sending for long TTI.If DLHARQ feedback is NACK signal, in the #h of #c frame UL subframe, there is the repeating transmission of bursty data.According to carrying the index i of bursty data assignment information and l, corresponding to UL frame index j and UL subframe index m and the N of index i and l _tTIdetermine as follows frame index a, b and c and subframe index h and f.

If U-m>=N _tTI, becoming j=i, the long TTI that starts to indicate by bursty data assignment information in the #m of #j frame subframe sends, thus a=i and h=m.On the other hand, if U-m < is N _tTI, becoming j=i+1, the remaining UL frame period is less than N _tTIthereby, can not in #i frame, send bursty data.Therefore, in the #0UL subframe of # (i+1) frame, start long TTI and send, thus a=i+1 and h=0.Because send DL HARQ feedback in #l DL subframe, so f=l.With reference to equation (13), if U-h-N _tTI+ l>=Rx_Time4 sends DL HARQ feedback in #b (b=(a+1)) frame.If U-h-N _tTI+ l < Rx_Time4 sends DL HARQ feedback in #b (b=(a+2)) frame.If DLHARQ feedback is NACK signal, in the #h of #c frame UL subframe, start to retransmit.Be similar to the calculating of frame index a, if a=i, c=b.If a=i+1, c=b+1.

For example, if 5: in 3TDD structure, N _tTI=3, N _a-MAP=1 and Tx/Rx=3, because U-m (3-1) < is N _tTI(=3), in #0 (h=0) the UL subframe of # (i+1) (a=(i+1)) frame, start to send by the bursty data of the bursty data assignment information indication in the #2DL subframe at #i frame, and be sent out in #2 (f=2) the UL subframe of # (i+2) (b=(i+2)) frame for the DL HARQ feedback of bursty data.If HARQ feedback is NACK signal,, at # (i+3) frame, in the #0UL subframe of (b+1=i+3) frame, retransmit, be similar to that based on HARQ Tx, to be offset be 1 to calculate a=i+1.

In another example, if long TTI crosses over the whole UL period in TDD UL, always in #0UL subframe, start bursty data and send.In this system, when the long TTI UL of bursty data assignment information indication in #lDL subframe sends, in the #0 of #j frame subframe (m=0), start to send the bursty data corresponding to subframe index l.In the #lDL of #k frame subframe, send the HARQ feedback for bursty data.If HARQ feedback is NACK signal, in the #0UL of #p frame subframe, starts HARQ and retransmit.Use the HARQ Tx skew v and the HARQ feedback shift w that consider that m=0 is definite, by the equation defining in form 4, calculate frame index j, k and p.

In FDD, DL subframe and UL subframe are continuous respectively in their different frequency bands.Thereby long TTI sends and can in arbitrary subframe, start.Yet if in view of realizing complexity or any other factors, long TTI sends starts to be limited to specific subframe, control information (for example, resource allocation information and HARQ feedback information) may concentrate in specific sub-frame, as in TDD.Therefore, be similar to TDD, need in FDD, readjust HARQ regularly.

If long TTI sends, start to be limited to specific DL subframe (for the DL subframe x of the DL HARQ operation of FDD system), can consider that following HARQ regularly.Long TTI sends and comprises at least one DL subframe (x ₁, x ₂..., x _max).Herein, N _a-MAP1.That is to say, when the long TTI of bursty data assignment information indication sending in #l DL subframe (l ≠ x) sends, start long TTI and send in DL subframe, this DL subframe allows the long TTI after #l subframe to send.

In above-mentioned situation, if the long TTIDL of the bursty data assignment information sending in #lDL subframe indication sends and l=x, the subframe index m and n and the frame index j that by form 1, calculate for HARQ operation.On the contrary, if l ≠ x starts bursty data and sends in #m frame.In the #n of #j frame UL subframe, send the HARQ feedback for bursty data.Here, by equation (16) rather than determine index m, n and j by form 1.That is to say, the DL subframe index l based on bursty data assignment information, the subframe index x of bursty data and frame index are determined the position (n, j) of HARQ feedback.

$m=\left\{\begin{array}{cc}{x}_1^i& 0\&le;l\&le;x_1\\ x_2^i& x_1<l\&le;x_2\\ \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;\\ x_{\max }^i& x_{\max -1}\&le;l\&le;x_{\max }\\ x_1^{i+1}& x_{\max }<l<F\end{array}\right.$

n＝ceil(l+F/2)mod?F

$j=(i+\mathrm{floor}\left(\frac{\mathrm{ceil}(m+F/2)}{F}\right)+z)\mathrm{mod}N$

$z=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{ceil}(F/2)-N_{\mathrm{TTI}}+(m-l))\&GreaterEqual;\mathrm{Pr\; oces}\sin \mathrm{g\; time}\\ 1& \mathrm{else}\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(16\right)$

X wherein _n ⁱthe #x that represents #i frame _nsubframe and l=0,1 ... F-1.

For example,, if starting of sending of TTI is limited to #0DL subframe and #4DL subframe, F=8, N _tTI=4 and the Tx/Rx processing time be 3 subframes, in the #4DL of #i frame subframe (m=4), start #1, #2 or #3DL subframe (that is, x by #i frame ₂=4) the long TTI of the bursty data assignment information indication in sends, and the HARQ sending for long TTI feedback sends in the #n UL subframe of # (i+1) frame.Herein, the scope of n is from 5 to 7.Herein, (ceil (8/2)-4+3) is equal to or greater than 3, thus z=0.In addition, #5 by #i frame is sent in to the long TTI of the bursty data assignment information indication in #7DL subframe in the #0DL subframe (m=0) of # (i+1) frame and starts, and sends for the #n UL subframe that the HARQ of long TTI transmission feeds back at # (i+2) frame.Herein, the scope of n is from 1 to 3.(ceil (8/2)-4-5) is less than 3, thus z=1.

In FDD UL HARQ, if starting of sending of long TTI is limited to specific UL subframe (for the UL subframe y of the UL HARQ operation of FDD system), can consider that following HARQ regularly.Long TTI sends and comprises at least one UL subframe (y ₁, y ₂..., y _max).

In above-mentioned situation, if the long TTIUL of the bursty data assignment information sending in #lDL subframe indication sends and n=y, the subframe index m and the frame index j that by form 2, calculate for HARQ operation.On the contrary, if n ≠ y starts bursty data and sends in #m UL subframe.That is to say, the bursty data of bursty data assignment information indication in the #m of #j frame UL subframe sends.In the #lDL of #k frame subframe, send the HARQ feedback for bursty data.If HARQ feedback is NACK signal or distributes and be instructed to for the resource of retransmitting, HARQ retransmits and starts in the #m of #p frame subframe.Here, by equation (17) rather than determine index m, j, k and p by form 2.That is to say, the DL subframe index l based on bursty data assignment information, the subframe index y of bursty data and frame index i determine the position (m, j) of HARQ feedback.

With considering that the definite HARQ Tx of m=0 is offset v and HARQ feedback shift w, calculates frame index j, k and p by the equation defining in form 2.

$m=\left\{\begin{array}{cc}{y}_1^i& 0\&le;n\&le;y_1\\ y_2^i& y_1<n\&le;y_2\\ \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;\\ y_{\max }^i& y_{\max -1}\&le;n\&le;y_{\max }\\ y_1^{i+1}& y_{\max }<n<F\end{array}\right.$

n＝ceil(l+F/2)mod?F

$j=(i+\mathrm{floor}\left(\frac{\mathrm{ceil}(l+F/2)}{F}\right)+v)\mathrm{mod}N$

$v=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{ceil}(F/2)-1+(m-n))\&GreaterEqual;\mathrm{Pr\; oces}\sin \mathrm{g\; time}\\ 1& \mathrm{else}\end{array}\right.$

$k=(j+\mathrm{floor}\left(\frac{\mathrm{ceil}(n+F/2)}{F}\right)+w)\mathrm{mod}N$

$p=(k+\mathrm{floor}\left(\frac{\mathrm{ceil}(l+F/2)}{F}\right)+v)\mathrm{mod}N$

$w=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{floor}(F/2)-N_{\mathrm{TTI}}+(n-m))\&GreaterEqual;\mathrm{Pr\; oces}\sin \mathrm{g\; time}\\ 1& \mathrm{else}\end{array}\right.\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\&CenterDot;\left(17\right)$

Y wherein _n ⁱthe #y that represents #i frame _nsubframe, and l=0,1 ..., F-1.

For example, if TTI send start to be limited to #0UL subframe and #4UL subframe (that is, y ₁=0, y ₁=4), F=8, N _tTI=4 and the Tx/Rx processing time be 3 subframes, in the #0UL subframe of # (i+1) frame, start #1, #2 by #i frame or #3DL subframe (, because 1≤l≤3, the long TTI of the bursty data assignment information indication 5≤n≤7) sends, and the HARQ sending for long TTI feedback sends in #1, #2 or the #3DL subframe of # (i+2) frame.Herein, (ceil (8/2)-1+0-n) is less than 3, thus v=1.Because (floor (8/2)-4+n-0) is equal to or greater than 3, so w=0.In addition, #5, #6 by #i frame or #7DL subframe are (, because 5≤l≤7, the long TTI of the bursty data assignment information indication 1≤n≤3) is sent in middle beginning of #4UL subframe (m=4) of # (i+1) frame, and the HARQ sending for long TTI feedback sends in the #l of # (i+2) frame (l is 5,6 and 7 one) subframe.If HARQ feedback is NACK signal and distributes and be instructed to for the resource of retransmitting, HARQ retransmits and starts in the #4UL subframe of # (i+3) frame.Because (ceil (8/2)-1+4-n) is equal to or greater than 3, so v=0.Because (floor (8/2)-4+n-4) is less than 3, so w=1.

In another one exemplary embodiment of the present invention, if send bursty data assignment information in each DL subframe, N _a-MAP=1.Therefore, form 1 is revised respectively and is become form 5 to form 8 to form 4.Following form can be for determining at least one the transmitting time in following: have the distribution A-MAP of bursty data assignment information, the HARQ subgroup of carrying bursty data, HARQ and feed back (ACK or NACK) and HARQ retransmission sub-packet.It should be understood, however, that these forms should not be interpreted as limitation of the present invention.

Form 5

Form 6

Form 7

Form 8

For example, when each superframe comprises four frames as shown in Figure 1, at form 5, to N in form 8, be 4.If D equals the U in " the HARQ subgroup Tx in UL " of form 7 " HARQ feedback " in UL or form 8, n has equality and does not consider above-mentioned equation.That is to say n=m-k.

According to the embodiment revising, reflector and receiver have at least one form, described form have according to form 4 equation to form 8 or form 9 to form 12, corresponding to the end value of all possible input values, and reflector and receiver can read the end value corresponding to current input value, to determine that HARQ regularly.In one example, input value represents subframe index and the frame index of the distribution A-MAP IE Tx in DL.

The embodiment revising according to the present invention, form 9 below can determine that HARQ regularly for have the transmitting time of the distribution A-MAP of bursty data assignment information by use to form 12.

Form 9-FDD DL HARQ regularly

Form 10-FDD UL HARQ regularly

Form 11-TDD DL HARQ regularly

Form 12-TDD UL HARQ regularly

Following situation can be thought of as to further one exemplary embodiment of the present invention: the UL HARQ operation timing of foregoing description is applied to channel, and for described channel, resource is distributed with UL transmission in particular kind of relationship.For example, in UL fast feedback channel situation, BS sends the resource allocation information for quick UL feedback in the #l of #i frame subframe.Regularly, that is, frame index and subframe index are determined based on i and l in the transmission of UL feedback information fast.More particularly, by one in form 2, form 4, form 6 and form 8 frame index j and subframe index m that determines UL quick feedback information.

Although described in DL and UL index DL subframe and UL subframe dividually at this about TDD system, DL subframe and UL subframe can be indexed continuously in the frame that comprises DL and UL.UL subframe index x replaces with the subframe index d+x in frame.

Figure 19 and Figure 20 be illustrate according to the present invention one exemplary embodiment, according to DL and UL HARQ timing architecture, for the diagram of the signal stream of the operation between BS and MS.

With reference to Figure 19, in step 1802, BS transmitting system configuration information is to MS.System configuration information is broadcasted by BS or is obtained by the negotiation between BS and MS, to allow MS connecting system.Realizing HARQ timing architecture needs system configuration information, comprises that the quantity of subframe of bandwidth (sum of subframe), each link (DL and UL) is, the Tx/Rx processing time of the Tx/Rx processing time of BS and MS.

Obtain system information and access BS from system configuration information at MS after, in step 1804, BS and MS each other executing data communicate by letter.In the embodiment revising, when MS knows system configuration information, can omit step 1804.

In step 1806, BS sends assignment information to MS in the #lDL of #i frame subframe, and described assignment information comprises or indicates frame index, subframe index, long TTI and MAP information.MS extracts by decoding assignment information the information needing.According at least one of the one exemplary embodiment of the present invention in front description, frame index and subframe index that the frame index of MS based on previous HARQ operation and subframe index are determined each HARQ operation.

In step 1808, BS sends DL HARQ burst in the #h of #a frame subframe according to assignment information, and MS is based on assignment information decoding DL HARQ burst.In step 1810, the HARQ that MS sends in the #f of #b frame subframe according to decoded result for DL HARQ burst feeds back to BS.

In step 1812, can in the #h of #c frame subframe, send next assignment information according to the predefined assignment information transmission period.If HARQ feedback is NACK signal, in step 1814, DL HARQ burst can be retransmitted.

With reference to Figure 20, in step 1902, BS transmitting system configuration information is to MS.Obtain system information and access BS from system configuration information at MS after, in step 1904 BS and MS each other executing data communicate by letter.

In step 1906, BS sends assignment information to MS in the #lDL of #i frame subframe, and described assignment information comprises or indicates frame index, subframe index, long TTI and MAP relevant information.MS extracts by decoding assignment information the information needing.According at least one of the one exemplary embodiment of the present invention in front description, frame index and subframe index that the frame index of MS based on previous HARQ operation and subframe index are determined each HARQ operation.

In step 1908, MS sends UL HARQ burst in the #h of #a frame subframe according to assignment information, and BS is based on assignment information decoding UL HARQ burst.In step 1910, BS sends HARQ feedback for UL HARQ burst to MS according to decoded result in the #f of #b frame subframe, or next assignment information.If HARQ feedback is NACK signal,, in step 1912, can in the #h of #c frame subframe, retransmit according to predefined transmit time segments UL HARQ burst.

In order to realize the one exemplary embodiment of at least one the invention described above, each of BS and MS comprises controller, and described controller is configured to have processor, for the memory of the program code of the required program code of the operation of storage control and relevant parameter and for exchange reflector and the receiver of signal message or transfer of data with the other side under the control of controller.Controller is according to controlling HARQ regularly to carry out the operation of reflector and receiver at least one of the one exemplary embodiment of the present invention of front description.

From above-mentioned description, be apparent that, because HARQTx is set neatly in mobile radio system regularly, according to different frame structures and the DL of the system bandwidth for different, UL ratio, legacy system are supported to scheme, one exemplary embodiment of the present invention allows HARQ flexibly to send.

The quantity of the subframe that above-mentioned synchronous relation reduction receiver will be monitored, thus electric power saved.In addition, MS can more freely be used predefined operation timing and another system to communicate.

Although illustrate and describe the present invention with reference to particular exemplary embodiment of the present invention, but it should be appreciated by those skilled in the art that and can not depart from the spirit and scope of the present invention that limited by claims and equivalent thereof carrying out various changes aspect form and details.

Claims (30)

1. for carry out a method for mixed automatic retransfer request (HARQ) operation at mobile radio system, the frame that described mobile radio system is used each to have a plurality of subframes communicates, and described method comprises:

According to the bursty data assignment information sending in #l down link (DL) subframe at #i frame, determine HARQ regularly, for DL HARQ, described HARQ regularly comprises the transmitting time of DL bursty data and the transmitting time of HARQ feedback; And

According to definite HARQ, regularly carry out HARQ operation,

Wherein, by using l and i to determine, represent at least one frame index and at least one subframe index of HARQ timing,

Wherein, when using Frequency Division Duplexing (FDD) (FDD) pattern, a superframe comprises four frames, and each of described four frames comprises eight subframes, and the frequency band of DL subframe is different from the frequency band of up link (UL) subframe, and

Wherein, when using time division duplex (TDD) pattern, a superframe comprises four frames, and each of described four frames comprises eight subframes, at least one subframe in the middle of described eight subframes is used as DL subframe, and other subframe in the middle of described eight subframes is used as UL subframe.

2. the method for claim 1, wherein when using Frequency Division Duplexing (FDD) (FDD) pattern, the equation by following form or have according to the form of the end value of the equation of following form and determine HARQ regularly,

Wherein, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, i represents to carry the index of the frame that distributes A-MAP IE, and m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, and n represents to carry the index of the subframe of HARQ feedback, j represents to carry the index of the frame of HARQ feedback, F represents the sub-frame number of each frame, and N represents the number of frames of each superframe, and z represents DL HARQ feedback shift.

3. method as claimed in claim 2, wherein, determines described DL HARQ feedback shift z by following equation according to the bursty data processing time of HARQ subgroup burst,

$z=\left\{\begin{array}{c}0,\mathrm{forceil}(F/2)-N_{\mathrm{TTI}}\&GreaterEqual;\mathrm{Rx}\_\mathrm{time}\\ 1,\mathrm{forceil}(F/2)-N_{\mathrm{TTI}}<\mathrm{Rx}\_\mathrm{time}\end{array}\right.$

Wherein ceil () represents to round up function, N _tTIthe quantity that represents the subframe that HARQ subgroup is crossed over, and Rx_time represents the bursty data processing time.

4. method as claimed in claim 2, wherein, starts the subframe with identical index m corresponding to the repeating transmission of the bursty data of described HARQ feedback after the transmission from bursty data starts the frame of predefine quantity.

5. method as claimed in claim 2, wherein, described execution HARQ operation comprises:

By base station (BS), to mobile radio station (MS), be sent in the HARQ subgroup starting in the #m DL subframe of #i frame; And

The HARQ for HARQ subgroup being received in the #n UL subframe of #j frame from MS by BS feeds back.

6. method as claimed in claim 2, wherein, described execution HARQ operation comprises:

By MS, from BS, be received in the HARQ subgroup starting the #m DL subframe of #i frame; And

The HARQ for HARQ subgroup being sent in to BS by MS in the #n UL subframe of #j frame feeds back.

7. the method for claim 1, wherein when the bursty data assignment information indication longer transmission time interval (TTI) DL sends, by following equation or have according to the form of the end value of following equation and determine HARQ timing,

$m=\left\{\begin{array}{cc}{x}_1^i& 0\&le;l\&le;x_1\\ x_2^i& x_1<l\&le;x_2\\ .& .\\ .& .\\ .& .\\ x_{\max }^i& x_{\max -1}\&le;l\&le;x_{\max }\\ x_1^{i+1}& x_{\max }<l<F\end{array}\right.$

n＝ceil(l+F/2)mod?F

$j=(i+\mathrm{floor}\left(\frac{\mathrm{ceil}(m+F/2)}{F}\right)+z)\mathrm{mod}N$

$z=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{ceil}(F/2)-N_{\mathrm{TTI}}+(m-l))\&GreaterEqual;\mathrm{Proces}\sin \mathrm{gtime}\\ 1& \mathrm{else}\end{array}\right.$

Wherein, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, and i represents to carry the index of the frame that distributes A-MAP IE, and m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, n represents to carry the index of the subframe of HARQ feedback, j represents to carry the index of the frame of HARQ feedback, and F represents the sub-frame number of each frame, and N represents the number of frames of each superframe, z represents DL HARQ feedback shift, and the #x that represents #i frame _nsubframe.

8. the method for claim 1, wherein when using time division duplex (TDD) pattern, the equation by following form or have according to the form of the end value of the equation of following form and determine HARQ timing,

Wherein, described in each, frame has D down link (DL) subframe and U up link (UL) subframe, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, the scope of l is from 0 to D-1, i represents to carry the index of the frame that distributes A-MAP IE, m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, n represents to carry the index of the subframe of HARQ feedback, j represents to carry the index of the frame of HARQ feedback, N represents the number of frames of each superframe, z represents DL HARQ feedback shift, if D is equal to or less than U, pass through-ceil{ (U-D)/2} calculating K, if and D is greater than U, by floor{ (D-U)/2} calculating K.

9. method as claimed in claim 8, wherein, determines described DL HARQ feedback shift z by following equation according to the bursty data processing time of HARQ subgroup burst,

$z=\left\{\begin{array}{c}0,\mathrm{forD}-m-N_{\mathrm{TTI}}+n\&GreaterEqual;\mathrm{Rx}\_\mathrm{time}\\ 1,\mathrm{foeD}-m-N_{\mathrm{TTI}}+n<\mathrm{Rx}\_\mathrm{time}\end{array}\right.$

Wherein, N _tTIthe quantity that represents the subframe that HARQ subgroup is crossed over, and Rx_time represents the bursty data processing time.

10. method as claimed in claim 8, wherein, the subframe with subframe index m starting in the transmission from bursty data corresponding to the repeating transmission of the described bursty data of described HARQ feedback after the frame of predetermined quantity starts.

11. methods as claimed in claim 8, wherein, if subframe index l, m and n are as DL subframe index, subframe index l, the scope of each in m and n is from 0 to D-1, D is except the quantity of the DL subframe supporting to define in the period period of legacy system in each frame, if described subframe index l, m and n are as UL subframe index, subframe index l, the scope of each in m and n is from 0 to U-1, U is except the quantity of the UL subframe supporting to define in the period period of legacy system in each frame, and by calculate described frame index corresponding to the subframe index order that comprises the whole duration of the period of supporting legacy system in each frame.

12. methods as claimed in claim 8, wherein, if described subframe index l, m and n are as DL subframe index, described DL subframe index is the index for the rearrangement of the DL subframe from relay station (RS) to the communication of MS, if described subframe index l, m and n are as UL subframe index, described UL subframe index is the index for the rearrangement of the UL subframe of the communication from MS to RS, and calculates described frame index by the subframe index order corresponding to the whole duration for communicating by letter with RS in each frame.

13. methods as claimed in claim 8, wherein, described execution HARQ operation comprises:

By base station (BS), to mobile radio station (MS), be sent in the HARQ subgroup starting in the #m DL subframe of #i frame; And

The HARQ for HARQ subgroup being received in the #n UL subframe of #j frame from MS by BS feeds back.

14. methods as claimed in claim 8, wherein, described execution HARQ operation comprises:

By MS, from BS, be received in the HARQ subgroup starting the #m DL subframe of #i frame; And

The HARQ for HARQ subgroup being sent in to BS by MS in the #n UL subframe of #j frame feeds back.

15. the method for claim 1, wherein, if when tdd mode, distribution A-MAP IE indication longer transmission time interval (TTI) of comprising bursty data assignment information sends and l is not 0, in the #0DL subframe that is sent in # (i+1) frame corresponding to the HARQ subgroup of bursty data, start, and the HARQ feedback for HARQ subgroup sends in the #n ' of #j ' frame UL subframe, and

Wherein, described long TTI sends and means that HARQ subgroup crosses over two or more subframes, and by following equation or have according to the form of the end value of following equation and determine subframe index n ' and frame index j ',

$n^{\&prime;}=\left\{\begin{array}{c}0,\mathrm{for}0\&le;l<K\\ l-K,\mathrm{forK}\&le;l<U+K,\mathrm{ForD}>U\\ U-1,\mathrm{forU}+K\&le;l<D\end{array}\right.$

n′＝l-K，For?D≤U

j′＝((i+1)+z)mod?N

16. 1 kinds of methods that operate for carry out mixed automatic retransfer request (HARQ) at mobile radio system, the frame that described mobile radio system is used each to have a plurality of subframes communicates, and described method comprises:

According to the bursty data assignment information sending in #l down link (DL) subframe at #i frame, determine that HARQ regularly, for UL HARQ, described HARQ regularly comprises the transmitting time of up link (UL) bursty data, the transmitting time of HARQ feedback and the retransmission time of bursty data; And

According to definite HARQ, regularly carry out HARQ operation,

Wherein, by using l and i to determine, represent at least one frame index and at least one subframe index of HARQ timing,

Wherein, when using Frequency Division Duplexing (FDD) (FDD) pattern, a superframe comprises four frames, and each of described four frames comprises eight subframes, and the frequency band of DL subframe is different from the frequency band of up link (UL) subframe, and

Wherein, when using time division duplex (TDD) pattern, a superframe comprises four frames, and each of described four frames comprises eight subframes, at least one subframe in the middle of described eight subframes is used as DL subframe, and other subframe in the middle of described eight subframes is used as UL subframe.

17. methods as claimed in claim 16, wherein, when using Frequency Division Duplexing (FDD) (FDD) pattern, the equation by following form or have according to the form of the end value of the equation of following form and determine HARQ timing,

Wherein, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, i represents to carry the index of the frame that distributes A-MAP IE, m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, j represents to carry the index of the frame of HARQ feedback, F represents the sub-frame number of each frame, N represents the number of frames of each superframe, k represents to carry the index of the frame of HARQ feedback, v represents that UL HARQ sends skew, and w represents ULHARQ feedback shift.

18. methods as claimed in claim 17, wherein, by following equation or have according to the form of the end value of following equation, according to the bursty data processing time of HARQ subgroup burst, determine that UL HARQ sends skew v and UL HARQ feedback shift w,

$v=\left\{\begin{array}{c}0,\mathrm{forceil}(F/2)-1\&GreaterEqual;\mathrm{Rx}\_\mathrm{time}\\ 1,\mathrm{forceil}(F/2)-1<\mathrm{Rx}\_\mathrm{time}\end{array}\right.$

$w=\left\{\begin{array}{c}0,\mathrm{forfloor}(F/2)-N_{\mathrm{TTI}}\&GreaterEqual;\mathrm{Rx}\_\mathrm{time}\\ 1,\mathrm{forfloor}(F/2)-N_{\mathrm{TTI}}<\mathrm{Rx}\_\mathrm{time}\end{array}\right.$

Wherein ceil () represents to round up function, and floor () represents downward bracket function, N _tTIthe quantity that represents the subframe that HARQ subgroup is crossed over, and Rx_time represents the bursty data processing time.

19. methods as claimed in claim 17, wherein, corresponding to the repeating transmission of the bursty data of HARQ feedback at the equation by following form or have according to definite time of form of the end value of the equation of following form,

Wherein, p is illustrated in the index of the frame that wherein repeating transmission of bursty data starts, if described HARQ feedback is Negative Acknowledgement (NACK), v represents that UL HARQ sends skew, and w represents UL HARQ feedback shift.

20. methods as claimed in claim 17, wherein, described execution HARQ operation comprises:

By base station (BS), from mobile radio station (MS), be received in the HARQ subgroup starting the #m UL subframe of #j frame;

By MS, to BS, be sent in the feedback of the HARQ for HARQ subgroup in #l down link (DL) subframe of #k frame; And

By BS, from MS, be received in the repeating transmission of the HARQ grouping starting the #m UL subframe of #p frame.

21. methods as claimed in claim 17, wherein, described execution HARQ operation comprises:

By MS, to BS, be sent in the HARQ subgroup starting in the #m UL subframe of #j frame;

The HARQ for HARQ subgroup being received in the #l DL subframe of #k frame from BS by MS feeds back; And

By MS, to BS, retransmitting the HARQ starting from the #m UL subframe of #p frame divides into groups.

22. methods as claimed in claim 16, wherein, when the bursty data assignment information indication longer transmission time interval (TTI) UL sends, by following equation or have according to the form of the end value of following equation and determine HARQ timing,

$m=\left\{\begin{array}{cc}{y}_1^i& 0\&le;n\&le;y_1\\ y_2^i& y_1<n\&le;y_2\\ .& .\\ .& .\\ .& .\\ y_{\max }^i& y_{\max -1}\&le;n\&le;y_{\max }\\ y_1^{i+1}& y_{\max }<n<F\end{array}\right.$

n＝ceil(l+F/2)mod?F

$j=(i+\mathrm{floor}\left(\frac{\mathrm{ceil}(l+F/2)}{F}\right)+v)\mathrm{mod}N$

$v=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{ceil}(F/2)-1+(m-n))\&GreaterEqual;\mathrm{Proces}\sin \mathrm{gtime}\\ 1& \mathrm{else}\end{array}\right.$

$k=(j+\mathrm{floor}\left(\frac{\mathrm{ceil}(n+F/2)}{F}\right)+w)\mathrm{mod}N$

$p=(k+\mathrm{floor}\left(\frac{\mathrm{ceil}(l+F/2)}{F}\right)+v)\mathrm{mod}N$

$w=\left\{\begin{array}{cc}0& \mathrm{if}(\mathrm{floor}(F/2)-N_{\mathrm{TTI}}+(n-m))\&GreaterEqual;\mathrm{Proces}\sin \mathrm{gtime}\\ 1& \mathrm{else}\end{array}\right.$

Wherein, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, i represents to carry the index of the frame that distributes A-MAP IE, m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, n represents to carry the index of the subframe of HARQ feedback, j represents to carry the index of the frame of HARQ feedback, F represents the sub-frame number of each frame, N represents the number of frames of each superframe, p is illustrated in the index of the frame that wherein repeating transmission of bursty data starts, if HARQ feedback is NACK, v represents UL HARQ feedback shift, and the #y that represents #i frame _nsubframe.

23. methods as claimed in claim 16, wherein, when using time division duplex (TDD) pattern, the equation by following form or have according to the form of the end value of the equation of following form and determine HARQ timing,

Wherein, described in each, frame has D down link (DL) subframe and U up link (UL) subframe, l represents to carry the index of the subframe of distributing A-MAP IE, described distribution A-MAP IE comprises bursty data assignment information, the scope of l is from 0 to D-1, i represents to carry the index of the frame that distributes A-MAP IE, m is illustrated in wherein the index of the subframe that the transmission corresponding to the HARQ subgroup of bursty data starts, n represents to carry the index of the subframe of HARQ feedback, j represents to carry the index of the frame of HARQ feedback, N represents the number of frames of each superframe, k represents to carry the index of the frame of HARQ feedback, v represents that UL HARQ sends skew, w represents UL HARQ feedback shift, if D is less than U, pass through-{ ceil (U-D)/2} calculating K, if and D is equal to or greater than U, by floor{ (D-U)/2} calculating K.

24. methods as claimed in claim 23, wherein, determine that according to the bursty data processing time of HARQ subgroup burst UL HARQ sends skew v and UL HARQ feedback shift w by following equation,

$v=\left\{\begin{array}{c}0,\mathrm{forD}-l-1+m\&GreaterEqual;\mathrm{Tx}\_\mathrm{time}\\ 1,\mathrm{forD}-l-1+m<\mathrm{Tx}\_\mathrm{time}\end{array}\right.$

$w=\left\{\begin{array}{c}0,\mathrm{forU}-m-N_{\mathrm{TTI}}+l\&GreaterEqual;\mathrm{Rx}\_\mathrm{time}\\ 1,\mathrm{forU}-m-N_{\mathrm{TTI}}+l<\mathrm{Rx}\_\mathrm{time}\end{array}\right.$

Wherein, N _tTIthe quantity that represents the subframe that HARQ subgroup is crossed over, and each the expression bursty data processing time in Tx_Time and Rx_time.

25. methods as claimed in claim 23, wherein, are starting the repeating transmission corresponding to the bursty data of HARQ feedback by the definite time place of following form,

Content Subframe index Frame index HARQ subgroup ReTx in UL m p=(k+v)mod4

Wherein, if HARQ feedback is Negative Acknowledgement (NACK), p is illustrated in the index of the frame that wherein repeating transmission of bursty data starts.

26. methods as claimed in claim 23, wherein, if subframe index l, m and n are as DL subframe index, subframe index l, the scope of each in m and n is from 0 to D-1, D is except the quantity of the DL subframe supporting to define in the period period of legacy system in each frame, if described subframe index l, m and n are as UL subframe index, subframe index l, the scope of each in m and n is from 0 to U-1, U is except the quantity of the UL subframe supporting to define in the period period of legacy system in each frame, and by calculate described frame index corresponding to the subframe index order that comprises the whole duration of the period of supporting legacy system in each frame.

27. methods as claimed in claim 23, wherein, if described subframe index l, m and n are as DL subframe index, described DL subframe index is the index for the rearrangement of the DL subframe from relay station (RS) to the communication of MS, if described subframe index l, m and n are as UL subframe index, described UL subframe index is the index for the rearrangement of the UL subframe of the communication from MS to RS, and calculates described frame index by the subframe index order corresponding to the whole duration for communicating by letter with RS in each frame.

28. methods as claimed in claim 23, wherein, described execution HARQ operation comprises:

By base station (BS), from mobile radio station (MS), be received in the HARQ subgroup starting the #m UL subframe of #j frame;

The HARQ for HARQ subgroup being sent in to MS by BS in the #l DL subframe of #k frame feeds back; And

By BS, from MS, received the repeating transmission of the HARQ subgroup starting from the #m UL subframe of #p frame.

29. methods as claimed in claim 23, wherein, described execution HARQ operation comprises:

By MS, to BS, be sent in the HARQ subgroup starting in the #m UL subframe of #j frame;

The HARQ for HARQ subgroup being received in the #l DL subframe of #k frame from BS by MS feeds back; And

By MS, to BS, retransmitted the HARQ subgroup starting from the #m UL subframe of #p frame.

30. methods as claimed in claim 16, wherein, if when tdd mode, comprise that the distribution A-MAP IE indication longer transmission time interval (TTI) of bursty data assignment information sends, in the #0UL subframe that is sent in #j frame corresponding to the HARQ subgroup of bursty data, start, and the HARQ feedback for HARQ subgroup sends in the #l of #p frame UL subframe, and wherein said long TTI sends and means that HARQ subgroup crosses over two or more subframes.