CN101911641A

CN101911641A - Method for determining transport block size and signal transmission method using the same

Info

Publication number: CN101911641A
Application number: CN2008801236029A
Authority: CN
Inventors: 金奉会; 金沂濬; 安俊基; 徐东延
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2008-01-31
Filing date: 2008-11-17
Publication date: 2010-12-08
Anticipated expiration: 2028-11-17
Also published as: ES2639850T3; KR20090084641A; TWI403120B; JP2013232981A; CN101911641B; JP2015092703A; CN103475448A; KR20140130393A; KR20150093631A; CN103475448B; JP5670520B2; KR101667590B1; KR20140130394A; ES2719534T3; JP5330402B2; KR101526990B1; JP5977809B2; JP6204543B2; JP2016213871A; JP2011504038A

Abstract

A method for determining a transport block size and a signal transmission method using the same are disclosed. When the signal transmission method constructs a transport block size combination by predetermining the transport block size, it prevents the insertion of any dummy bits in consideration of the limitation of an input bit length of an encoder during an encoding step. If a CRC is attached to the transport block and the transport block is segmented into a plurality of code blocks, the signal transmission method can establish a length of the transport block in consideration of a length of the CRC attached to each code block.

Description

The method of communicating signals that is used for determining the method for transmission block size and uses it

Technical field

The present invention relates to be used for wireless communication system effectively specified data piece or transmission block size method and apparatus and use its method to be used to transmit the method for signal.

Background technology

Usually, in communication system, the forward error correction transmission information of encoding is used in the transmission end of this communication system, and information encoded sends the receiving terminal of communication system to, makes and can proofread and correct the mistake that is caused by channel in the information that receiving terminal receives.The receiving terminal demodulated received signal, decoding forward error correcting codes, and recover from the transmission information of transmission end transmission.During this decoding processing, can proofread and correct the received signal mistake that causes by channel.

There is operable various forward error correction.For the convenience of describing, hereinafter the turbo sign indicating number is described as the example of forward error correction.The turbo sign indicating number comprises the convolution coder and the interleaver of recurrence system.Under the situation that realizes the turbo sign indicating number practically, this interleaver is convenient to parallel decoding, and the example of this interleaver can be quadratic polynomial displacement (QPP) interleaver.Well known in the art, this QPP interleaver only keeps outstanding information throughput or performance in the data block of specific size.In this case, term " data block " is the block unit data by encoder encodes.If the block unit data that we want to be transferred to physical layer from the upper strata need not discussed below cutting apart and encode, then this data block also can be known as transmission block (TB).On the other hand, if we want to cut apart the transmission block that will be encoded, then this data block can be mated with " code block ".

Usually, the data block size is big more, and the turbo code performance is high more.The data block that surpasses specific size is divided into a plurality of small-scale data blocks by practical communication system, makes small-scale data block be encoded for reality realizes convenient.The small-scale data block of being divided is known as code block.Usually, though these code blocks have identical size, because the restriction of QPP interleaver size, one in some code blocks can have other size.Based on the code block of predetermined interleaver size small-scale data block is carried out forward error correction coding and handle, and then the result data piece is transferred to RF (radio frequency) channel.In this case, in the above process that the result data piece is transferred to the RF channel, burst error may occur, make above result data piece be interleaved to reduce the influence of burst error.The data block that has interweaved is mapped to the actual wireless electric resources, makes the result of having shone upon be transmitted.

The amount of the radio resource that uses in actual transport process is constant, makes that should carry out rate-matched to the code block of having encoded owing to the constant basis of radio resource handles.Usually, this rate-matched is handled and is realized by deleting surplus or repeating.For example, this rate-matched can also be to carry out based on the code block of having encoded with mode identical in the WCDMA of 3GPP.For another example, the components of system as directed of the code block of having encoded and parity part can be separated from each other.This rate-matched is handled and can be carried out together components of system as directed and parity part.On the other hand, this rate-matched is handled and can also be carried out independently components of system as directed and partly each of parity.

Fig. 1 is the concept map of the basic operation of diagram turbo encoder.

As shown in Figure 1, if the turbo encoder receives a code block, then it is divided into components of system as directed (S) and parity part (P1 and P2) with a received code block.This components of system as directed S and parity part P1 and P2 pass through independently sub-block interleaver respectively.Therefore, components of system as directed S can be interweaved by different sub-block interleavers with P2 with parity part P1, and the result that interweaves is stored in the annular buffer.

As can be seen from Figure 1, the components of system as directed of this code block and parity part can be separated from each other, and the part of independent separate is carried out rate-matched to be handled, but, the disclosed example of Fig. 1 is just to illustrative purpose, and scope and spirit of the present invention are not limited to this example, and go for other example.For the purpose of the convenience of describing, suppose that encoding rate is 1/3 value.

Though can define various transmission block sizes according to the service type on upper strata, preferably, the transmission block size can be quantized to carry out the signaling of various transmission block sizes effectively.During quantification treatment,, the room is increased to source block in order to be adjusted into the size of the data block of physical layer from the source block of upper strata transmission.During this quantification treatment, preferably, the amount in the room that increases is reduced to minimum.

Summary of the invention

In order to realize these purposes and other advantage, with according to purpose of the present invention, as implementing herein and describing widely, a kind of method of communicating signals and equipment have been provided, this method comprises: be identified for transmitting the number of the code block of the transmission block with specific size, and transmission block is mapped to and the corresponding code block of determined number; With additional each in the code block of Cyclic Redundancy Check; By encode in the code block of additional CRC each of the turbo encoder that comprises inner interleaver; And transmit the code block encoded, wherein the specific size of transmission block is corresponding to any transmission block size in predetermined transmission block size combinations, and wherein be predefined in any transmission block size in the predetermined transmission block size combinations, make the length of giving any one code block among the code block of transmission block from mapping and the summation of the length of additional CRC to this code block equal the block size of inner interleaver with length-specific.

The block size of the inner interleaver of turbo encoder can be used as the combination of predetermined bit length and is scheduled to.

Under above-mentioned hypothesis, if being used to transmit the number of the code block of this transmission block is 1, then this specific transmission block size can be any one of the transmission block size combinations of being scheduled to, and wherein any one of Yu Ding transmission block size is corresponding to the summation of the block size of CRG length and predetermined inner interleaver.

Under identical hypothesis, be 2 at least if be used to transmit the number of the code block of this transmission block, then this transmission block is split at least two code blocks with identical length, and is mapped at least two code blocks.

Above-mentioned operation may be summarized to be following expression.

If the specific size of this transmission block is N, the number that then is used to transmit the code block of this transmission block is M, the length of each of M code block is Nc, and the length of CRC is L, specific transmission block size N can satisfy the equation of being represented by N=M*Nc-L, and specific transmission block size can be corresponding to any one of predetermined transmission block size combinations, and wherein the value of Nc+L is corresponding to the block size as the predetermined inner interleaver of the combination of predetermined bit length.

In more detail, the block size of the inner interleaver of turbo encoder can be predefined for " K " value according to the index in following table 1 (i):

[table 1]

Under above-mentioned hypothesis, if being used to transmit the number of the code block of this transmission block is 1, then this specific transmission block size can be this transmission block size combinations any one, wherein any transmission block size is corresponding to the summation in K value shown in the table 1 and CRC length.

Above-mentioned operation may be summarized to be following expression.

If the specific size of this transmission block is N, the number that then is used to transmit the code block of this transmission block is M, the length of each in M code block is Nc, and the length of CRC is L, specific transmission block size N can satisfy the equation of being represented by N=M*Nc-L, and specific transmission block size can be corresponding to any one of transmission block size combinations, and wherein the value of Nc+L is corresponding in the K value shown in the above table 1.

The specific big or small N of this transmission block can be configured to the length selected from the combination shown in the following table 2 according to the number M of the code block that is used for transmitting this transmission block.

[table 2]

This method may further include: the information that receives expression modulation and encoding scheme (MCS) and available resources area size from receiving terminal; And determine specific transmission block size based on the information that receives from predetermined transmission block size combinations.

And, if this transmission block sizes values based on received information is not included in the predetermined transmission block size combinations, maximum transport block size (it is equal to or less than based on received transmission of Information block size value) in predetermined transmission block size combinations then, minimum transfer block size in predetermined transmission block size combinations (it greater than based on received transmission of Information block size value), perhaps specific transmission block size (it has and minimal difference based on received transmission of Information block size value) can be used as specific transmission block size in predetermined transmission block size combinations.

In another aspect of the present invention, provide a kind of method of communicating signals, having comprised: the additional transmission block of giving of first Cyclic Redundancy Check that will have length L with length N; The transmission block of an additional CRC is divided into M code block, its each have length N c; To have additional each in M the code block of second Cyclic Redundancy Check of length L; By the turbo encoder that comprises inner interleaver M the code block of encoding, its each have the 2nd CRC; And transmit M the code block encoded, and wherein this transmission block size N satisfies the equation of being represented by N=M*Nc-L (N, Nc, M and L are natural numbers) here, and the value of Nc+L has any one of block size of the inner interleaver of turbo encoder here.

In another aspect of the present invention, provide a kind of method of communicating signals, having comprised: the transmission block that will have length N shines upon at least one code block; By the turbo encoder that comprises inner interleaver described at least one code block of encoding; And transmit the code block encoded, wherein this transmission block size N is selected from the combination of the transmission block size of all values that is included in the value shown in the following table 3 or some values.

[table 3]

16	392	1096	3176	6200	12216	22152	37440	62368	101840
										24	400	1128	3240	6328	12384	22408	37888	63072	102928
32	408	1160	3304	6456	12576	22664	38336	63776	104016
										40	416	1192	3368	6584	12768	22920	38784	64480	104376
48	424	1224	3432	6712	12960	23176	39232	65184	105528
										56	432	1256	3496	6840	13152	23432	39680	65888	106680

64	440	1288	3560	6968	13344	23688	40128	66592	107832
										72	448	1320	3624	7096	13536	23944	40576	67296	108984
80	456	1352	3688	7224	13728	24200	41024	68040	110136
										88	464	1384	3752	7352	13920	24456	41472	68808	110176
96	472	1416	3816	7480	14112	24496	41920	69576	111392
										104	480	1448	3880	7608	14304	24816	42368	70344	112608
112	488	1480	3944	7736	14496	25136	42816	71112	113824
										120	504	1512	4008	7864	14688	25456	43304	71880	115040
128	520	1544	4072	7992	14880	25776	43816	72648	116256
										136	536	1576	4136	8120	15072	26096	44328	73416	117256
144	552	1608	4200	8248	15264	26416	44840	73712	118536
										152	568	1640	4264	8376	15456	26736	45352	74544	119816
160	584	1672	4328	8504	15648	27056	45864	75376	121096
										168	600	1704	4392	8632	15840	27376	46376	76208	122376
176	616	1736	4456	8760	16032	27696	46888	77040	123120
										184	632	1768	4520	8888	16224	28016	47400	77872	124464
192	648	1800	4584	9016	16416	28336	47912	78704	125808
										200	664	1832	4648	9144	16608	28656	48424	79536	127152
208	680	1864	4712	9272	16800	28976	48936	80280	128496
										216	696	1896	4776	9400	16992	29296	49296	81176	130392
224	712	1928	4840	9528	17184	29616	49872	82072	131800
										232	728	1960	4904	9656	17376	29936	50448	82968	133208
240	744	1992	4968	9784	17568	30256	51024	83864	134616

248	760	2024	5032	9912	17760	30576	51600	84760	134848
										256	776	2088	5096	10040	17952	30936	52176	85656	136320
264	792	2152	5160	10168	18144	31320	52752	86016	137792
										272	808	2216	5224	10296	18336	31704	53328	86976	139264
280	824	2280	5288	10424	18568	32088	53904	87936	140736
										288	840	2344	5352	10552	18824	32472	54480	88896	142248
296	856	2408	5416	10680	19080	32856	55056	89856	143784
										304	872	2472	5480	10808	19336	33240	55416	90816	145320
312	888	2536	5544	10936	19592	33624	56056	91776	146856
										320	904	2600	5608	11064	19848	34008	56696	92776	148176
328	920	2664	5672	11192	20104	34392	57336	93800	149776
										336	936	2728	5736	11320	20360	34776	57976	94824	151376
344	952	2792	5800	11448	20616	35160	58616	95848	152976
										352	968	2856	5864	11576	20872	35544	59256	96872
360	984	2920	5928	11704	21128	35928	59896	97896
										368	1000	2984	5992	11832	21384	36312	60536	98576
376	1032	3048	6056	11960	21640	36696	61176	99664
										384	1064	3112	6120	12088	21896	36992	61664	100752

Here the N value is a natural number.

According to above-mentioned embodiments of the invention, if the transmission block that receives from the upper strata is split into a plurality of code blocks, and described code block is by the turbo encoder encodes, then the present invention can avoid the increase in the room that the length owing to the input position of the inner interleaver of turbo encoder causes, and makes it can transmit signal effectively.

Description of drawings

Accompanying drawing is included to provide further to be understood the present invention, and accompanying drawing illustrates embodiments of the invention, and is used from explanation principle of the present invention with specification one.

In the accompanying drawings:

Fig. 1 is the concept map of diagram according to the basic operation of turbo encoder of the present invention;

Fig. 2 and 3 is diagram is used for long transmission block is divided into a plurality of weak points in the 3GPP system according to the present invention transmission blocks, and with the additional concept map of giving short transmission block of CRC;

Fig. 4 is the concept map that illustrates the principle of setting up the transmission block size according to one embodiment of present invention; And

Fig. 5 shows the example according to resource structures of the present invention.

Embodiment

Now will be at length with reference to the preferred embodiments of the present invention, its example illustrates in the accompanying drawings.As possible, run through the identical Reference numeral of this accompanying drawing and will be used to represent identical or similar parts.Before describing the present invention, should be noted that disclosed in the present invention most of terms are corresponding to the general terms that is well known in the art, still, selected some terms as required by the applicant, and will be open in the following description of the present invention hereinafter.Therefore, preferably, be that the basis is understood with in the present invention implication by the term of the applicant definition.

Understand the present invention for convenience of description and better, following detailed description will disclose various embodiment of the present invention and modification.In some cases, for fear of the notion that the present invention blurs occurring, well-known conventional equipment of those skilled in the art or device will save, and represent with the form of block diagram based on important function of the present invention.As possible, run through the identical Reference numeral of accompanying drawing and will be used to represent identical or similar part.

As mentioned above, those skilled in the art are well-known, and the inner interleaver of this turbo sign indicating number only has outstanding performance in the data block of specific size.If the data block size is greater than predetermined size, then transmission block or data block are split into a plurality of code blocks, and this processing is called and cuts apart.Because the restriction of interleaver size, transmission or data block may not be divided into the code block of identical size.

But under the situation of down link, CQI must be applicable to all code blocks of cutting apart from data block, makes preferably this transmission or data block be split into the code block of identical size.If data block size or the code block size of having cut apart and the inner interleaver of turbo sign indicating number vary in size, then insert the room and make transmission efficiency be lowered.In order to address this problem, preferably, do not need this room to carry out this dividing processing.

For above-mentioned operation, need to consider the block size of the internal encoder of the turbo encoder that causes by the room of having inserted.In order to carry out this chnnel coding, CRC is attached to transmission block or the code block of cutting apart from transmission block, and the length of each data block is converted into another length simultaneously, and making needs to consider chnnel coding.

To describe above-mentioned CRC additional treatments at first, hereinafter in detail.

Be used to detect wrong CRC and be attached to the transmission block that receives from the upper strata.Realize for convenience, and can be with its additional each of giving in the code block of having cut apart.

Fig. 2 and 3 is diagram is used for long transmission block is divided into the length of a plurality of weak points in the 3GPP system according to the present invention code blocks, and with the additional concept map of giving short code block of CRC.

This 3GPP system is divided into the code block of a plurality of weak points with long transmission block (TB), and the code block that coding is short is gathered the code block of the weak point of having encoded, and transmits the code block of the weak point of being gathered.Hereinafter the detailed description of the above operation of 3GPP system will be described with reference to figure 2.

With reference to figure 2, long transmission block has added CRC, that is to say, and is at step S 101, that CRC is additional to this transmission block.Thereafter, at step S102, the transmission block of the length of additional CRC is split into the code block of a plurality of weak points.Be similar to this, shown in the Reference numeral 201～203 of Fig. 3, with the additional transmission block of giving length of CRC, and the transmission block of additional CRC is split into a plurality of code blocks.But if the length of the transmission block that receives from the upper strata equals or is shorter than the predetermined length that can be made of a code block, that is, the maximum length of the inner interleaver of turbo encoder then can be omitted cutting apart of this transmission block.In this case, also can omit the processing that is used for additional CB CRC.

Simultaneously, each in the short code block added CRC, that is to say, at step S103, then to each the execution CRC additional treatments in the code block.In more detail, shown in the Reference numeral 204 of Fig. 3, each in the code block comprises CRC.

And each code block comprises that the code block of CRC is applied in channel encoder, makes that at step S104 the object code piece being carried out chnnel coding handles.Thereafter, rate-matched treatment S 105 and code block cascade and channel interleaving treatment S 106 are sequentially put on independently code block, make the object code piece be transmitted to receiving terminal.

Therefore, according to following embodiment, proposed to consider that two-stage CRC additional treatments is used for determining the processing of transmission block size.The size of transmission block less than predetermined size (such as, the maximum internal interleaver size), and this transmission block is mapped under the situation of a code block, and embodiments of the invention provide a kind of and have been used for only considering that a CRC sets up the method for transmission block size.

Under above-mentioned hypothesis, use description to hereinafter transmission block is shone upon method to a code block.In order not need the routine techniques in additional room under the condition that transmission block is mapped to a code word, this embodiment of the present invention allows the summation of transmission block size (N) and a CRC length to equal the block size of the inner interleaver of turbo interleaver.The combination of the block size of the inner interleaver of following table 1 expression turbo encoder.

[table 1]

Therefore, as shown in table 1, if this transmission block is mapped to a code block, then preferably, this transmission block has the particular length that obtains when deducting the length of additional CRC to transmission block in the block size of interleaver (K) internally.As long as the length of additional CRC to transmission block is 24, the transmission block size (N) that obtains when this transmission block is mapped to a code block just can be K-24.That is to say, can be selected from the combination of following table 4 according to this transmission block size of this embodiment.

[table 4]

Simultaneously, hereinafter detailed description is used for a transmission block is divided into two or more code blocks, and the code block of having cut apart is carried out the method that mapping is handled.

If a transmission block is split into two or more code blocks, the CRC that then is used for this transmission block is attached to the transmission block shown in Fig. 2 and 3, and the CRC that is used for each code block is attached to the code block cut apart each.Under this hypothesis, preferably as shown in table 1 for fear of the way of the routine that increases the room, the summation of the size of the size of the code block that any one is cut apart and the additional CRC that gives corresponding code block equals the input position size of inner interleaver.

And each in the code word that this embodiment of the present invention allows to have cut apart has identical size.Code block by cutting apart the different sizes that this transmission block generates is caused by the size restriction institute of the inner interleaver of turbo encoder.If as the size of the inner interleaver of describing in this embodiment of considering the turbo encoder and set up this transmission block size in advance, then not needing independently, code block has different sizes.

Under above-mentioned hypothesis, hereinafter detailed description is used for setting up according to this embodiment the method for transmission block size.

Fig. 4 is the concept map that illustrates the principle of setting up the transmission block size according to one embodiment of present invention.

At first, suppose that the CRC of L size is attached to the transmission block of N size (TB).If the size of the transmission block (TB) of additional CRC is longer than the maximum length of inner interleaver, then this transmission block is split into a plurality of code blocks (CB).As can be seen from Figure 4, this transmission block (TB) size is split into M (CB ₁～CB _M) individual, each in them has N _cThe identical length of position.

Simultaneously, the CRC of L size is attached to each in M the code block.

In this way, as long as each in the code block of having cut apart has identical length, and consider the length of two additional CRC, then this transmission block size N can represent by following equation 1:

[equation 1]

N+L*M+L＝M*(Nc+L)＝＞N＝M*Nc-L

If use 24 CRC, then Yi Shang equation 1 can be represented by another equation N=M*Nc-24.

In the code block of having cut apart each comprises CRC, makes the code block of additional CRC be applied in the inner interleaver of turbo encoder.Therefore, as shown in Figure 4, as what represented by following equation 2, the length of the code block of additional CRC equals the block size (K) in the inner interleaver shown in the table 1:

[equation 2]

Nc+L＝K

Based on above-mentioned description, this embodiment provides a kind of method that is used to use in the following transmission block size shown in the following table 2.Following table 2 shows and is shown in single transmission block and shines upon the various situations of giving the relation between 25 code blocks of maximum of this single transmission block.

[table 2]

Table 2 satisfies above

equation

1 and 2, and shows the situation that is equivalent to when a transmission block is split into 25 code blocks.In the scope that satisfies

equation

1 and 2, those skilled in the art can easily understand additional transmitted piece (TB) size of analogizing according in the value shown in the table 2.

Because signal transmits and to be undertaken by above-mentioned embodiment of the present invention,, feasiblely can improve systematic function or throughput so can eliminate because the restriction of the block size of turbo encoder increases the room.

Simultaneously, considering that not only transmission block is mapped to first situation of a code block, and considering that transmission block is split under the situation of second situation of two or more code blocks, the size of available transmission block can be represented by following table 3.

[table 3]

16

392

1096

3176

6200

12216

22152

37440

62368

101840

24	400	1128	3240	6328	12384	22408	37888	63072	102928
										32	408	1160	3304	6456	12576	22664	38336	63776	104016
40	416	1192	3368	6584	12768	22920	38784	64480	104376
										48	424	1224	3432	6712	12960	23176	39232	65184	105528
56	432	1256	3496	6840	13152	23432	39680	65888	106680
										64	440	1288	3560	6968	13344	23688	40128	66592	107832
72	448	1320	3624	7096	13536	23944	40576	67296	108984
										80	456	1352	3688	7224	13728	24200	41024	68040	110136
88	464	1384	3752	7352	13920	24456	41472	68808	110176
										96	472	1416	3816	7480	14112	24496	41920	69576	111392
104	480	1448	3880	7608	14304	24816	42368	70344	112608
										112	488	1480	3944	7736	14496	25136	42816	71112	113824
120	504	1512	4008	7864	14688	25456	43304	71880	115040
										128	520	1544	4072	7992	14880	25776	43816	72648	116256
136	536	1576	4136	8120	15072	26096	44328	73416	117256
										144	552	1608	4200	8248	15264	26416	44840	73712	118536
152	568	1640	4264	8376	15456	26736	45352	74544	119816
										160	584	1672	4328	8504	15648	27056	45864	75376	121096
168	600	1704	4392	8632	15840	27376	46376	76208	122376
										176	616	1736	4456	8760	16032	27696	46888	77040	123120
184	632	1768	4520	8888	16224	28016	47400	77872	124464
										192	648	1800	4584	9016	16416	28336	47912	78704	125808

200	664	1832	4648	9144	16608	28656	48424	79536	127152
										208	680	1864	4712	9272	16800	28976	48936	80280	128496
216	696	1896	4776	9400	16992	29296	49296	81176	130392
										224	712	1928	4840	9528	17184	29616	49872	82072	131800
232	728	1960	4904	9656	17376	29936	50448	82968	133208
										240	744	1992	4968	9784	17568	30256	51024	83864	134616
248	760	2024	5032	9912	17760	30576	51600	84760	134848
										256	776	2088	5096	10040	17952	30936	52176	85656	136320
264	792	2152	5160	10168	18144	31320	52752	86016	137792
										272	808	2216	5224	10296	18336	31704	53328	86976	139264
280	824	2280	5288	10424	18568	32088	53904	87936	140736
										288	840	2344	5352	10552	18824	32472	54480	88896	142248
296	856	2408	5416	10680	19080	32856	55056	89856	143784
										304	872	2472	5480	10808	19336	33240	55416	90816	145320
312	888	2536	5544	10936	19592	33624	56056	91776	146856
										320	904	2600	5608	11064	19848	34008	56696	92776	148176
328	920	2664	5672	11192	20104	34392	57336	93800	149776
										336	936	2728	5736	11320	20360	34776	57976	94824	151376
344	952	2792	5800	11448	20616	35160	58616	95848	152976
										352	968	2856	5864	11576	20872	35544	59256	96872
360	984	2920	5928	11704	21128	35928	59896	97896
										368	1000	2984	5992	11832	21384	36312	60536	98576
376	1032	3048	6056	11960	21640	36696	61176	99664

384

1064

3112

6120

12088

21896

36992

61664

100752

When realizing method described above, when the length of the transmission block of the additional CRC of terminal recognition during greater than the interleaver block size of maximum, this terminal can be determined the code block of predetermined number from look-up table, perhaps can calculate the code block of predetermined number based on formula.This calculating can comprise that the equation based on following calculates the code block of predetermined number:

Here

The expression upper limit function,

C is the code block of predetermined number,

B is the length of the transmission block of additional CRC,

Z is maximum interleaver block size, and

L is a CRC length.

According to the method for communicating signals of this embodiment and equipment make transmission block can have with the various values shown in the table 3 in any one corresponding predetermined length.Table 3 shows available transmission block (TB) size, and this does not need the room is inserted the common way of signal.This method of communicating signals can be considered signaling consumption or the like and the subclass of permission table 3 is shared between transmitting terminal and receiving terminal, rather than uses all values of table 36.

Simultaneously, in order to notify receiving terminal this transmission block size, the transmission block size is represented in the combination of the resource size that the transmission end can be by modulation and encoding scheme (MCS) and distribution.By means of from receiving terminal channel transmitted quality indicator, scheduler is judged MCS.Not only consider the resource that is used for control information transmission, and consider other resource that is used for for the reference signal of channel estimation, the resource size of distribution is determined.

With reference to figure 5, transverse axis express time territory, and the longitudinal axis is represented frequency domain.Under the supposition of the resource structures that uses Fig. 5, the resource of suppose to be used for control information transmission is corresponding to 3 symbols, and uses two emissions (Tx) antenna, a Resource Block (RB) to comprise to can be used in 120 Resource Units (RE) of transmission data.

In this case, if the hypothesis modulation rate is 64QAM, then encoding rate is 0.6504, and the number of the Resource Block (RB) that distributes is 10, and the size of the data block that can transmit is 4658.These 4658 are arranged between 4608 and 4672 of table 1.Be set to 4608 or 4672 if suppose the size of transmissible data block, then the size of the resource that the data block size can be by various modulation and encoding rate and distribution is judged.

As previously described in above-mentioned example, if varying in size of the size of in fact transmissible data block and supported data block, then the size of in fact transmissible data block can be by following regular i)～in iii) any one judge:

A kind ofly be used to judge that in fact transmissible data block size is the method for supported data block size to greatest extent, supported to greatest extent data block size is equal to or less than in fact transmissible data block size;

A kind ofly be used to judge that in fact transmissible data block size is the method for the supported data block size of minimally, the supported data block size of minimally is greater than in fact transmissible data block size; And

A kind ofly be used to judge that in fact transmissible data block size be that the method for supported data block size, supported data block size have the difference with in fact transmissible data block size minimum.

In this case, if a transmission block is transmitted via a code block, then this data block can be corresponding to this transmission block.In addition, if a transmission block is transmitted via two or more code blocks, then this data block can be considered to this code block.

Those skilled in the art be it is evident that, under the situation that does not break away from spirit of the present invention or scope, can carry out various modifications and variations in the present invention.Therefore, this invention is intended to cover the improvement of the present invention and the variation of being included within claim and its equivalent scope.For example, though disclose according to method of communicating signals of the present invention based on 3GPP LTE system, but it can also be applicable to other communication system, and each during encoding process in them has restriction aspect block size, and uses the combination of predetermined transmission block size.

If the transmission block that receives from the upper strata is split into a plurality of code blocks, and code block is encoded by the turbo encoder, then can eliminate the room of the increase that the restriction by the block size of the inner interleaver of turbo encoder causes, make it can transmit signal effectively according to method of communicating signals of the present invention.

Claims

1. one kind is sent to the method for second equipment with data from first equipment, and described first equipment has physical layer and the layer on described physical layer, and described first equipment also comprises the interleaver with a plurality of predetermined block sizes, and described method comprises:

Receive transmission block from the layer on described physical layer in described physical layer, described transmission block has predetermined length;

The one CRC sign indicating number that will have a CRC code length is additional to received transmission block, and to produce the transmission block of CRC coding, the transmission block of described CRC coding has the length greater than the interleaver block size of maximum;

The transmission block of described CRC coding is divided into the code block of predetermined number, and each code block has common length; And

Additional each of giving in the code block of described predetermined number of corresponding the 2nd CRC sign indicating number that will have the 2nd CRC code length, producing the code block of additional CRC, the code block of described additional CRC only has one the length that equals in described a plurality of predetermined block size.

2. method according to claim 1, wherein, the interleaver block size of described maximum is 6144.

3. method according to claim 1, wherein, the described first and second CRC code lengths are 24.

4. method according to claim 1, wherein, the code block value of equaling x of described predetermined number, 25 〉=x 〉=2 here.

5. method according to claim 1 wherein, is divided into the step of the code block of predetermined number with the transmission block of described additional CRC, and each code block has common length, comprising:

The length of transmission block of discerning described additional CRC is greater than the interleaver block size of described maximum; And

From look-up table, select the code block of described predetermined number.

6. method according to claim 1 wherein, is divided into the step of the code block of predetermined number with the transmission block of described additional CRC, and each code block has common length, comprising:

The length of transmission block of discerning described additional CRC is greater than the interleaver block size of maximum; And

Calculate the code block of described predetermined number based on following equation:

Here

The expression upper limit function,

C is the code block of described predetermined number,

B is the length of the transmission block of described additional CRC,

Z is the interleaver block size of described maximum, and

L is a described CRC length.

7. method according to claim 1, wherein, a value that equals in following table in described a plurality of predetermined block sizes:

40 416 1120 3200 48 424 1152 3264 56 432 1184 3328 64 440 1216 3392 72 448 1248 3456

80 456 1280 3520 88 464 1312 3584 96 472 1344 3648 104 480 1376 3712 112 488 1408 3776 120 496 1440 3840 128 504 1472 3904 136 512 1504 3968 144 528 1536 4032 152 544 1568 4096 160 560 1600 4160 168 576 1632 4224 176 592 1664 4288 184 608 1696 4352 192 624 1728 4416 200 640 1760 4480 208 656 1792 4544 216 672 1824 4608 224 688 1856 4672 232 704 1888 4736 240 720 1920 4800

248 736 1952 4864 256 752 1984 4928 264 768 2016 4992 272 784 2048 5056 280 800 2112 5120 288 816 2176 5184 296 832 2240 5248 304 848 2304 5312 312 864 2368 5376 320 880 2432 5440 328 896 2496 5504 336 912 2560 5568 344 928 2624 5632 352 944 2688 5696 360 960 2752 5760 368 976 2816 5824 376 992 2880 5888 384 1008 2944 5952 392 1024 3008 6016

400 1056 3072 6080 408 1088 3136 6144

8. method according to claim 1, wherein, described predetermined length is N, and the code block of described predetermined number is M, and described common length is Nc, and the described first and second CRC code lengths are L, and described predetermined length N satisfies the equation of N=M*Nc-L.

9. method according to claim 1, wherein, the code block of described predetermined number is M, described predetermined length is N, and a pair of value M and N are one in the paired value shown in the following table:

10. according to the described described method of claim 1, further comprise:

Code block to described additional CRC carries out chnnel coding;

Piece to described chnnel coding carries out rate-matched;

Piece cascade of code block run time version and channel interleaving to described rate-matched; And

Transmit the code block of the channel interleaving of described cascade.

11. method according to claim 1, wherein, described first equipment is portable terminal, and described second equipment is the base station.

12. method according to claim 1, wherein, described first equipment is the base station, and described second equipment is portable terminal.

13. a portable terminal that is configured to data are sent to external equipment, described portable terminal have physical layer and the layer on described physical layer, described portable terminal comprises:

Interleaver with a plurality of predetermined block sizes; And

Processor, described processor is configured to:

The one CRC sign indicating number that will have a CRC code length is additional to received transmission block, and to produce the transmission block of additional CRC, the transmission block of described additional CRC has the length greater than the interleaver block size of maximum;

The transmission block of described additional CRC is divided into the code block of predetermined number, and each code block has common length; And

Additional each of giving in the code block of described predetermined number of corresponding the 2nd CRC sign indicating number that will have the 2nd CRC code length, producing the code block of additional CRC, the code block of described additional CRC has one the length that equals in described a plurality of predetermined block size.

14. portable terminal according to claim 13, wherein, the interleaver block size of described maximum is 6144.

15. portable terminal according to claim 13, wherein, the described first and second CRC code lengths are 24.

16. portable terminal according to claim 13, wherein, the code block value of equaling x of described predetermined number, 25 〉=x 〉=2 here.

17. portable terminal according to claim 13, wherein, described processor is configured to discern the length of transmission block of described additional CRC greater than the interleaver block size of described maximum, and selects the code block of described predetermined number from look-up table.

18. portable terminal according to claim 13, wherein, described processor is configured to discern the length of transmission block of described additional CRC greater than the interleaver block size of described maximum, and calculates the code block of described predetermined number based on following equation:

Here

The expression upper limit function,

C is the code block of described predetermined number,

B is the length of the transmission block of described additional CRC,

Z is the interleaver block size of described maximum, and

L is a described CRC length.

19. portable terminal according to claim 13, wherein, a value that equals in following table in described a plurality of predetermined block sizes:

40 416 1120 3200 48 424 1152 3264 56 432 1184 3328 64 440 1216 3392 72 448 1248 3456 80 456 1280 3520 88 464 1312 3584 96 472 1344 3648

104 480 1376 3712 112 488 1408 3776 120 496 1440 3840 128 504 1472 3904 136 512 1504 3968 144 528 1536 4032 152 544 1568 4096 160 560 1600 4160 168 576 1632 4224 176 592 1664 4288 184 608 1696 4352 192 624 1728 4416 200 640 1760 4480 208 656 1792 4544 216 672 1824 4608 224 688 1856 4672 232 704 1888 4736 240 720 1920 4800 248 736 1952 4864 256 752 1984 4928 264 768 2016 4992

272 784 2048 5056 280 800 2112 5120 288 816 2176 5184 296 832 2240 5248 304 848 2304 5312 312 864 2368 5376 320 880 2432 5440 328 896 2496 5504 336 912 2560 5568 344 928 2624 5632 352 944 2688 5696 360 960 2752 5760 368 976 2816 5824 376 992 2880 5888 384 1008 2944 5952 392 1024 3008 6016

400 1056 3072 6080 408 1088 3136 6144

20. portable terminal according to claim 13, wherein, described predetermined length is N, the code block of described predetermined number is M, described common length is Nc, and the described first and second CRC code lengths are L, and described predetermined length N satisfies the equation of N=M*Nc-L.

21. portable terminal according to claim 13, wherein, the code block of described predetermined number is M, and described predetermined length is N, and a pair of value M and N are one in the paired value shown in the following table:

22. mobile device according to claim 13 further comprises:

Conveyer, described conveyer is configured to:

Code block to described additional CRC carries out chnnel coding,

Piece to described chnnel coding carries out rate-matched,

To the piece cascade of code block run time version and the channel interleaving of described rate-matched, and

Transmit the code block of the channel interleaving of described cascade.

23. a base station transfer equipment that is configured to data are sent to portable terminal, described base station transfer equipment have physical layer and the layer on described physical layer, described base station transfer equipment comprises:

Interleaver with a plurality of predetermined block sizes; And

Processor, described processor is configured to:

24. base station according to claim 23, wherein, the code block of described predetermined number is M, and described predetermined length is N, and a pair of value M and N are one in the paired value shown in the following table:

25. a method of communicating signals comprises:

Be identified for transmitting the number of the code block of transmission block, and described transmission block is mapped to and the corresponding code block of determined number with specific size;

With additional each of giving in the described code block of Cyclic Redundancy Check;

By encode in the code block of described additional CRC each of the turbo encoder that comprises inner interleaver; And

Transmit the code block of having encoded,

Wherein, the specific size of described transmission block is corresponding to any transmission block size in predetermined transmission block size combinations, and

Wherein, any transmission block size in predetermined transmission block size combinations is scheduled, makes length and the summation of the length of the additional CRC that gives a described code block of any one code block among the code block that is mapped to the transmission block with described specific size equal the block size of described inner interleaver.