WO2017063193A1 - Transport block size determining method, user equipment and base station - Google Patents

Abstract

Disclosed in an embodiment of the present invention is a transport block size determining method enabling the use of the existing transport block size table to determine the size of transport blocks when a great amount of resource units are allocated. The method comprises: user equipment determines the number of resource units N_ALLOCATE allocated to the user equipment by a base station according to a resource allocation indication message sent by the base station, wherein the number of resource units N_ALLOCATE is greater than the maximum number of resource units N_MAX supported by a transport block table; a user receives a modulation and coding scheme (MCS) sent by the base station; the user equipment determines the number of resource units N_i according to a predefined rule, where i = 1, 2,…M, M is an integer no less than 2, and N_i satisfies N_i ≤ N_MAX and also satisfies: N_ALLOCATE = N₁ + N₂ + ……+ N_M; the user equipment determines the size of the allocated transport blocks according to the MCS information sent by the base station and the number of resource units N_i.

Description

Method for determining transmission block size, user equipment and base station Technical field

The embodiments of the present invention relate to the field of communications, and more particularly, to a method, a user equipment, and a base station for determining a transport block size.

Background technique

Orthogonal Frequency Division Multiplexing (OFDM) technology has been adopted by 3GPP organizations because of its anti-multipath capability and easy engineering implementation, and is a key technology in the LTE standard.

When applying OFDM technology for communication, the applicable physical resources are generally divided into OFDM symbols in the time domain dimension and OFDM subcarriers in the frequency domain; one OFDM symbol in the time domain and one OFDM subcarrier in the frequency domain. The time-frequency grid point constitutes a minimum resource granularity and is called a resource unit (English: Resource Element, abbreviation: RE).

In the existing LTE system, the transmission of the service is generally based on the scheduling of the base station, and the basic unit of the scheduling is the resource block pair: a resource block pair (English: Resource Block Pair, abbreviation: RB-Pair) includes continuous time domain. Two resource blocks (English: Resource Block, abbreviation: RB), one RB includes 7 consecutive OFDM symbols in the time domain (6 OFDM symbols for the case of a long cyclic prefix), and 12 consecutive subcarriers in the frequency domain; One RB-Pair includes two consecutive RBs in the time domain. In the current LTE standard, one RB-Pair occupies one subframe in time, that is, 1 ms.

In general, the scheduling process of a service generally includes the following steps:

The base station of the LTE system selects a modulation mode, an encoding mode, and a layer number for the user equipment by using channel state information (Crystal State: CSI) reported by the user equipment.

The base station determines the allocation of the RB-Pair according to the current transport block size (English: Transport Block Size, abbreviated TBS);

The base station notifies the user equipment of the modulation mode, the coding mode, the number of layers, and the RB-Pair allocated thereto; the user equipment determines the TBS according to the received indication information, and then performs operations such as demodulation and decoding.

It can be known from the above-mentioned service scheduling process that the allocation of TBS and RB-Pair, the modulation mode, the coding mode, and the number of layers all have a corresponding relationship. In order to enable interconnection or interworking between base stations or user equipment provided by different equipment vendors, these correspondences are standardized by standard organizations. Generally come It is said that these correspondences are stored in the base station or user equipment in the form of TBS tables in the specific implementation.

The LTE system will evolve toward higher frequency points and larger bandwidths. This means that in the future, when LTE base stations implement a service scheduling, the number of resources (such as RB-Pair) scheduled may be much larger than the existing TBS. The number of resources supported by the form. This makes the existing TBS form unusable, which directly causes the user equipment and the base station to fail to communicate normally.

Summary of the invention

An embodiment of the present invention provides a method for determining a transport block size to solve the problem that a user equipment and a base station cannot communicate normally when the number of resources scheduled in a service scheduling process exceeds the number of resources supported by the existing TBS table.

In a first aspect, an embodiment of the present invention provides a method for determining a transport block size, where a maximum number of resource units supported by a transport block size list is _NMAX , and the method includes:

The user equipment according to the resource allocation indication message sent by the base station, the base station determines the resource unit allocated to the UE the number N _ALLOCATE, wherein the number of resource units N _ALLOCATE greater than the maximum supported transport block list resource unit number N _MAX ;

Receiving, by the user, a modulation and coding mode MCS sent by the base station;

Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2, . . . , M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX , N _i also satisfies: N _ALLOCATE = N ₁ + N ₂ + ... + N _M ;

And determining, by the user equipment, the size of the transport block configured by the user equipment according to the modulation and coding mode MCS information sent by the base station and the number of resource units N _i .

In a first possible implementation manner of the first aspect, the user equipment determines, according to a predefined rule, the number of resource units N _i , including:

The user equipment determines the M;

The user equipment determines the N _i according to the M.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner, the user equipment determines that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

Combining the first possible implementation of the first aspect with the second possible implementation In a third possible implementation manner, the user equipment determining that the M further includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a fourth possible implementation manner of the first aspect, the determining, by the user equipment, the number of resource units N _i according to the predefined rule includes:

Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, in the LTE system, the size of the maximum coding block is specifically 6144.

With reference to the first aspect, or any one of the foregoing first to fifth possible implementation manners, in the sixth possible implementation manner, the user equipment is configured according to the modulation and coding mode MCS information sent by the base station And determining the size of the transport block configured by the user equipment by using the number of resource units N _i :

The user device to temporarily transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

In a second aspect, an embodiment of the present invention provides a method for determining a transport block size, where a maximum number of resource units supported by a transport block size list is _NMAX , and the method includes:

The base station sends a resource allocation indication message to the user equipment, where the resource allocation indication message includes the number of resource units N _ALLOCATE allocated by the base station to the user equipment, where the number of resource units N _{ALLOCATE is} greater than the maximum supported by the transport block list. Number of resource units N _MAX ;

The base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines the size of the transport block configured by the user equipment according to the MCS, the N _ALLOCATE, and a predefined rule.

In a first possible implementation manner of the second aspect, the base station further sends modulation coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N _ALLOCATE, and the predefined The rule determines the size of the transport block in which the user equipment is configured, including:

Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX Said N _i also satisfies:

N _ALLOCATE = N ₁ + N ₂ + ... + N _M .

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the user equipment determines, according to a predefined rule, the number of resource units N _i , including:

The user equipment determines the M;

The user equipment determines the N _i according to the M.

With reference to the second possible implementation of the second aspect, in a third possible implementation, the determining, by the user equipment, that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

With reference to the second possible implementation of the second aspect, and any one of the possible implementation manners of the third possible implementation, in a fourth possible implementation, the user equipment determines that the M is further include:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a fifth possible implementation manner of the second aspect, the determining, by the user equipment, the number of resource units N _i according to the predefined rule includes:

Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, in the LTE system, the size of the maximum coding block is specifically 6144.

With reference to any one of the foregoing first to sixth possible implementation manners, in the seventh possible implementation, the user equipment, according to the modulation and coding mode MCS information sent by the base station, and the resource The number of units N _ALLOCATE determines that the size of the transport block configured by the user equipment includes:

The user device to temporarily transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

In a third aspect, an embodiment of the present invention provides a user equipment, including a processor and a transceiver, which are characterized by:

The transceiver is configured to receive a resource allocation indication message sent by the base station, and a modulation and coding mode MCS sent by the base station, where the resource allocation indication message indicates the number of resource units allocated by the base station to the user equipment, N _ALLOCATE , where The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

The processor is configured to determine a resource unit number N _i according to a predefined rule, where i=1, 2, . . . , M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX , Said N _i also satisfies: N _ALLOCATE = N ₁ + N ₂ + ... + N _M ;

The processor is further configured to determine, according to the modulation and coding mode MCS information and the number of resource units N _i sent by the base station, a size of a transport block configured by the user equipment.

In a first possible implementation manner of the third aspect, the processor is configured to determine, according to a predefined rule, a quantity of resource units N _i , including:

The processor determines the M;

The processor is further based on the determination of the N _i M.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the determining, by the processor, that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

With reference to the first possible implementation manner of the third aspect, and any possible implementation manner of the second possible implementation manner, in a third possible implementation manner, the processor determines that the M is further include:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a fourth possible implementation manner of the third aspect, the determining, by the processor, the number of resource units N _i according to the predefined rule includes:

The processor determines a corresponding transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, in the LTE system, the size of the maximum coding block is specifically 6144.

With reference to the third aspect, or any one of the possible implementation manners of the first to fifth aspects of the third aspect, in the sixth possible implementation, the processing is performed according to the modulation and coding mode MCS information sent by the base station The number of resource units N _i , determining the size of the transport block configured by the user equipment includes:

The processor temporary transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

The processor determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS1+TBS2...+TBS _i ......+TBSM.

In a fourth aspect, an embodiment of the present invention provides a base station, including a processor and a transceiver, which are characterized by:

The transceiver is configured to send, by the processor, a resource allocation indication message to the user equipment, where the resource allocation indication message includes a quantity of resource units N _ALLOCATE allocated by the processor to the user equipment, where The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

The transceiver is further configured to send, by using the scheduling of the processor, modulation coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N _ALLOCATE, and a predefined rule, The size of the transport block in which the user device is configured.

In a first possible implementation manner of the fourth aspect, the transceiver is further configured to send modulation coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N _ALLOCATE And a predefined rule, determining a size of the transport block configured by the user equipment, including:

Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX said N _i further satisfied:

N _ALLOCATE = N ₁ + N ₂ + ... + N _M .

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the user equipment determines, according to a predefined rule, the number of resource units N _i , including:

The user equipment determines the M;

The user equipment according to the determination of the N _i M.

With reference to the second possible implementation of the fourth aspect, in a third possible implementation, the determining, by the user equipment, that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

With reference to the second possible implementation manner of the fourth aspect, and any one possible implementation manner of the third possible implementation manner, in a fourth possible implementation manner, the user equipment determines that the M is further Includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a fifth possible implementation manner of the fourth aspect, the determining, by the user equipment, the number of resource units N _i according to the predefined rule includes:

Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.

With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner, in the LTE system, the size of the maximum coding block is specifically 6144.

With reference to any one of the fifth to sixth possible implementation manners of the fourth aspect, in a seventh possible implementation, the user equipment is configured according to the modulation and coding mode MCS information sent by the transceiver The number of resource units N _ALLOCATE , determining the size of the transport block configured by the user equipment includes:

The user device to temporarily transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

According to the above technical solution, after the base station allocates more than N _MAX resource units to the base station, the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

FIG. 1 is a flowchart of a method for determining a size of a transport block according to an embodiment of the present invention;

FIG. 2 is a flowchart of a method for determining the size of a transport block according to an embodiment of the present invention.

detailed description

The technical solution in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. It is clear that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention may be applied to an LTE communication system, and may also be applied to other communication systems similar thereto.

It should be understood that, in the embodiment of the present invention, the user equipment (English: User Equipment, abbreviation: UE) may be called a terminal (Terminal), a mobile station (English: Mobile Station, abbreviation: MS), and a mobile terminal (Mobile Terminal). The user equipment can communicate with one or more core networks via a radio access network (English: Radio Access Network, RAN), for example, the user equipment can be a mobile phone (or "cellular" phone), A computer or the like having a mobile terminal, for example, the user device may also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.

In the embodiment of the present invention, the base station may be an evolved base station (English: Evolutional Node B, abbreviated as: eNB or e-NodeB), a macro base station, and a micro base station (also referred to as a "small base station" in an LTE system or a LAA-LTE system. "), the pico base station, the access site (English: Access Point, abbreviation: AP) or the transmission site (English: Transmission Point, abbreviation: TP), etc., the present invention is not limited thereto. However, for convenience of description, the following content will be described by taking a base station and a user equipment as an example.

The service scheduling of the LTE system is implemented by the base station transmitting a control channel, where the control channel can carry scheduling information of the uplink or downlink data data channel, and the scheduling information includes control information such as RA information, MCS, HARQ process number, and the like, and the user equipment The UE performs reception of the downlink data channel or transmission of the uplink data channel according to the scheduling information carried in the control channel. For scheduling, the core is to determine the MCS, resource block to RB pair allocation, and number of layers for the scheduled UE. Specifically, the following data scheduling is used as an example. The base station selects the MCS and the number of layers for the UE based on the channel state information CSI reported by the UE; and then determines the allocation of the RB pair according to the size of the data packet TBS that needs to be transmitted. Correspondingly, after receiving the physical downlink control channel PDCCH, the UE determines the TBS according to the RB pair allocation, the MCS and the layer number indication in the PDCCH, and then performs operations such as demodulation and decoding. It can be seen that the TBS has a corresponding relationship with the RB pair allocation, the MCS, and the number of layers. This correspondence is predefined, for example, stored in the UE and the base station in the form of a table.

The LTE system will continue to evolve toward the direction of adopting more high-frequency points and larger bandwidth, which means that future LTE systems can adopt larger bandwidth scheduling, or take more subframes in consideration of high-frequency point low delay requirements. The scheduling will greatly increase the number of resource units scheduled for one time. The resource unit is similar to the RB pair in the current LTE system, but the number of protected REs may change. Since the number of scheduled resource units is greatly increased, the TBS specified in the current TBS table is not enough, so a larger TBS needs to be designed to adapt to the above requirements.

Generally speaking, if you design a larger TBS according to the original TBS form design idea, the design complexity will be very large, and without better scalability, that is, every time there is a need to increase the TBS, you need to follow the above. The rules are designed once for TBS, and the TBS tables in the standard will become larger and larger and not suitable for maintenance. The following is a brief introduction to the design of existing TBS forms:

Step 1: Determine CQI and MCS

Determine the working range of SNR, such as from -7dB to 20dB;

In the above SNR interval, link simulation is performed on various modulation methods (QPSK, 16QAM, 64QAM) and coding rates (1/3, 1/2, 2/3, 3/4, 5/6, etc.) to obtain more a link simulation curve of BLER-to-SNR, each curve representing an embodiment of spectral efficiency;

Based on the above curve, with BLER=0.1 and SNR spacing of 1.892dB, from the combination of the above various modulation methods and coding rates (corresponding to different spectral efficiencies), 15 are selected as CQI, and the index is as shown in Table 1. 1 to 15, and index 0 is CQI overflow; it can be seen that the spectral efficiency shown in the rightmost column of Table 1 is obtained by the modulation order * coding rate, taking index 1 as an example, and the spectral efficiency is QPSK modulation order. Multiply the number 2 by the encoding rate of 78/1024 to get 0.1523;

The above 15 CQIs were interpolated to obtain 29 MCSs.

Table 1. CQI Form

Step 2: Create a TBS form based on MCS and RB pairs assignments

In principle, based on the above MCS, combined with the allocation of the RB pair, the original transmittable number of bits, that is, the transport block size TBS, can be determined.

However, the internal interleaver of the LTE Turbo channel encoder is required to satisfy the QPP characteristic to realize the parallel processing capability of the Turbo code, thereby improving the efficiency of the Turbo. Specifically, the Turbo encoder only receives a limited number of values that satisfy the QPP principle, and specifically meets the values of the QPP interleaver as shown in Table 2. As can be seen from Table 2, the Ki column is the limited coding block size CBS supported by the Turbo encoder. The maximum CBS supported by the LTE Turbo encoder is 6144. If the TBS is greater than 6144, the TB needs to be divided into multiple CBs to be separately coded, and all TBSs currently supported by LTE support equal-sized CB partitions, and the divided The padding bit is 0. The maximum CBS value is limited to 6144 because, although the CB of the turbo code is longer, the coding gain is larger, but by the 6144 level, the increase of the coding gain is not obvious, and the CBS is continuously increased, which increases the coding complexity.

i	K i	f 1	f 2	i	K i	f 1	f 2	i	K i	f 1	f 2	i	K i	f 1	f 2
1	40	3	10	48	416	25	52	95	1120	67	140	142	3200	111	240
2	48	7	12	49	424	51	106	96	1152	35	72	143	3264	443	204
3	56	19	42	50	432	47	72	97	1184	19	74	144	3328	51	104
4	64	7	16	51	440	91	110	98	1216	39	76	145	3392	51	212
5	72	7	18	52	448	29	168	99	1248	19	78	146	3456	451	192
6	80	11	20	53	456	29	114	100	1280	199	240	147	3520	257	220
7	88	5	twenty two	54	464	247	58	101	1312	twenty one	82	148	3584	57	336
8	96	11	twenty four	55	472	29	118	102	1344	211	252	149	3648	313	228
9	104	7	26	56	480	89	180	103	1376	twenty one	86	150	3712	271	232
10	112	41	84	57	488	91	122	104	1408	43	88	151	3776	179	236
11	120	103	90	58	496	157	62	105	1440	149	60	152	3840	331	120
12	128	15	32	59	504	55	84	106	1472	45	92	153	3904	363	244
13	136	9	34	60	512	31	64	107	1504	49	846	154	3968	375	248
14	144	17	108	61	528	17	66	108	1536	71	48	155	4032	127	168
15	152	9	38	62	544	35	68	109	1568	13	28	156	4096	31	64
16	160	twenty one	120	63	560	227	420	110	1600	17	80	157	4160	33	130
17	168	101	84	64	576	65	96	111	1632	25	102	158	4224	43	264
18	176	twenty one	44	65	592	19	74	112	1664	183	104	159	4288	33	134
19	184	57	46	66	608	37	76	113	1696	55	954	160	4352	477	408
20	192	twenty three	48	67	624	41	234	114	1728	127	96	161	4416	35	138
twenty one	200	13	50	68	640	39	80	115	1760	27	110	162	4480	233	280
twenty two	208	27	52	69	656	185	82	116	1792	29	112	163	4544	357	142
twenty three	216	11	36	70	672	43	252	117	1824	29	114	164	4608	337	480
twenty four	224	27	56	71	688	twenty one	86	118	1856	57	116	165	4672	37	146
25	232	85	58	72	704	155	44	119	1888	45	354	166	4736	71	444
26	240	29	60	73	720	79	120	120	1920	31	120	167	4800	71	120
27	248	33	62	74	736	139	92	121	1952	59	610	168	4864	37	152
28	256	15	32	75	752	twenty three	94	122	1984	185	124	169	4928	39	462
29	264	17	198	76	768	217	48	123	2016	113	420	170	4992	127	234
30	272	33	68	77	784	25	98	124	2048	31	64	171	5056	39	158
31	280	103	210	78	800	17	80	125	2112	17	66	172	5120	39	80
32	288	19	36	79	816	127	102	126	2176	171	136	173	5184	31	96
33	296	19	74	80	832	25	52	127	2240	209	420	174	5248	113	902
34	304	37	76	81	848	239	106	128	2304	253	216	175	5312	41	166
35	312	19	78	82	864	17	48	129	2368	367	444	176	5376	251	336
36	320	twenty one	120	83	880	137	110	130	2432	265	456	177	5440	43	170
37	328	twenty one	82	84	896	215	112	131	2496	181	468	178	5504	twenty one	86
38	336	115	84	85	912	29	114	132	2560	39	80	179	5568	43	174
39	344	193	86	86	928	15	58	133	2624	27	164	180	5632	45	176
40	352	twenty one	44	87	944	147	118	134	2688	127	504	181	5696	45	178
41	360	133	90	88	960	29	60	135	2752	143	172	182	5760	161	120
42	368	81	46	89	976	59	122	136	2816	43	88	183	5824	89	182
43	376	45	94	90	992	65	124	137	2880	29	300	184	5888	323	184
44	384	twenty three	48	91	1008	55	84	138	2944	45	92	185	5952	47	186
45	392	243	98	92	1024	31	64	139	3008	157	188	186	6016	twenty three	94
46	400	151	40	93	1056	17	66	140	3072	47	96	187	6080	47	190
47	408	155	102	94	1088	171	204	141	3136	13	28	188	6144	263	480

Table 2. Internal interleaver parameters of the Turbo encoder

Therefore, when constructing a TBS table, it cannot be determined simply based on the MCS and RB pair assignments. Instead, according to the QPP characteristics, a set of values satisfying the QPP interleaver is selected; then the temporary TBS is determined according to the MCS and RB pair allocation, and then a value closest to the temporary TBS is selected from the above set of values as the final TBS. In addition, it is also necessary to consider the segmentation of TB, that is, each CBS of equal size after segmentation must also be in the above numerical set.

The relationship between the specifically determined TBS and the MCS and RB pair assignments is shown in Tables 3 and 4. It can be seen that the maximum number of RB pair allocations supported by the current TBS table is 110 RB pairs.

Table 3. Relationship between MCS index, modulation order, and TBS index

Table 4. Relationship between TBS values and TBS index and RB pair allocation

Step 3: Introduce a new mapping relationship for the case where one codeword is mapped to multiple layers.

The above TBS table only supports one layer of transmission. If a code can be transmitted on multiple layers, then the TBS needs to be extended. Since the MCS is determined by the current channel condition, and the number of RB pairs occupied by the layer and the N layer is the same, the extended TBS can check the single layer TBS table by multiplying the number of RB pairs allocated in the PDCCH by N times. .

TBS_L1	TBS_L2	TBS_L1	TBS_L2	TBS_L1	TBS_L2	TBS_L1	TBS_L2
1544	3112	3752	7480	10296	20616	28336	57336
1608	3240	3880	7736	10680	21384	29296	59256
1672	3368	4008	7992	11064	22152	30576	61664
1736	3496	4136	8248	11448	22920	31704	63776
1800	3624	4264	8504	11832	23688	32856	66592
1864	3752	4392	8760	12216	24496	34008	68808
1928	3880	4584	9144	12576	25456	35160	71112
1992	4008	4776	9528	12960	25456	36696	73712
2024	4008	4968	9912	13536	27376	37888	76208
2088	4136	5160	10296	14112	28336	39232	78704
2152	4264	5352	10680	14688	29296	40576	81176
2216	4392	5544	11064	15264	30576	42368	84760
2280	4584	5736	11448	15840	31704	43816	87936
2344	4776	5992	11832	16416	32856	45352	90816
2408	4776	6200	12576	16992	34008	46888	93800
2472	4968	6456	12960	17568	35160	48936	97896
2536	5160	6712	13536	18336	36696	51024	101840
2600	5160	6968	14112	19080	37888	52752	105528
2664	5352	7224	14688	19848	39232	55056	110136
2728	5544	7480	14688	20616	40576	57336	115040
2792	5544	7736	15264	21384	42368	59256	119816
2856	5736	7992	15840	22152	43816	61664	124464
2984	5992	8248	16416	22920	45352	63776	128496
3112	6200	8504	16992	23688	46888	66592	133208
3240	6456	8760	17568	24496	48936	68808	137792
3368	6712	9144	18336	25456	51024	71112	142248
3496	6968	9528	19080	26416	52752	73712	146856
3624	7224	9912	19848	27376	55056	75376	149776

Table 5. One-to-two-layer TBS mapping

Specifically, for the two-layer transmission, if the number N of allocated RB pairs is between 1 and 110/2, the single-layer TBS table can be checked by 2*N; if N is greater than 110/2, a single layer needs to be established. The TBS mapping relationship to the two layers is as shown in Table 5.

Table 6. Layer 1 to Layer 3 TBS Mapping

Specifically, for the three-layer transmission, if the number N of allocated RB pairs is between 1 and 110/3, the single-layer TBS table can be checked by 3*N; if N is greater than 110/3, then a single layer needs to be established. The TBS mapping relationship to the third layer is as shown in Table 6.

Table 7. One-to-four-layer TBS mapping

Specifically, for the four-layer transmission, if the number N of allocated RB pairs is between 1 and 110/4, the single-layer TBS table can be checked by 4*N; if N is greater than 110/4, then a single layer needs to be established. The TBS mapping relationship to the third layer is as shown in Table 7.

Based on the above TBS design process, if the resource unit of the scheduling increases, for example, taking the RB pair as an example, assuming that more than 110 RB pairs are exceeded, then each additional time, it is necessary to repeat at least the above step 2 (assuming the SNR working interval is unchanged, And the number of layers does not increase), the design complexity is increased, and the scalability is poor. In addition, as LTE continues to evolve and requires the design and storage of a large number of TBS tables, the complexity of standards and implementations will increase.

In order to solve the problems faced, the embodiments of the present invention will be described in detail below with reference to specific examples. It should be noted that the examples are only intended to help those skilled in the art to better understand the embodiments of the present invention, and not to limit the scope of the embodiments of the present invention; it should be understood that in the various embodiments of the present invention, the serial numbers of the above processes The size does not imply a sequence of executions, and the order of execution of the various processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

Example 1

The embodiment of the present invention provides a method for determining a transport block size, which is to solve the technical problem that the number of resources scheduled by the base station is too large, and the existing TBS table cannot be supported. The maximum number of resource units supported by the transport block size list is N _MAX , N _MAX is a positive integer. In the existing LTE system, N _{MAX is} specifically 110. FIG. 1 is a flowchart of a method according to an embodiment of the present invention, and the steps shown in the figure include:

Step 101: The user equipment determines, according to the resource allocation indication message sent by the base station, the number of resource units N _ALLOCATE allocated by the base station to the user equipment, where the number of resource units N _{ALLOCATE is} greater than the maximum resource unit supported by the transport block list. Quantity N _MAX ;

Step 102, the user receives the modulation and coding mode MCS sent by the base station;

Step 103: The user equipment determines, according to a predefined rule, a resource unit number N _i , where i=1, 2, . . . M, the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX , the N _i also satisfies: N _ALLOCATE = N ₁ + N ₂ + ... + N _M ;

Step 103: The user equipment determines, according to the modulation and coding mode MCS information and the number of resource units N _i sent by the base station, a size of a transport block configured by the user equipment.

In a specific embodiment of the process, optionally, the user equipment according to a modulation coding scheme MCS information transmitted from the base station and the number of resource units N _i, determining the transport block size of the user equipment is configured comprising:

The user equipment information and the resource unit number of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

In the process of the specific implementation step 103, optionally, the method for determining, by the user equipment, the number of resource units N _i according to the predefined rule may further include:

The user equipment determines the M;

The user equipment determines the N _i according to the M.

Further, the method for determining, by the user equipment, the M may include:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

Further optionally, the user equipment determining that the M further includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer. In the implementation based on the LTE system, K is 4.

According to the above technical solution, after the base station allocates more than N _MAX resource units to the base station, the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.

In another optional technical solution, determining, by the user equipment, the number of resource units N _i according to a predefined rule includes:

Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block. Specifically, in the LTE system, the size of the maximum coding block is specifically 6144.

According to the method proposed by the embodiment of the present invention, the problem of the transport block size table corresponding to the larger resource unit can be solved with a smaller storage space, and the trouble of re-deleting the transport block size table is eliminated. The segmentation loss is reduced, so that the number of coding blocks of the dispute is small and the coding gain is high.

Example 2

An embodiment of the present invention provides a method for determining a size of a transport block, which may be performed by a base station to correspond to a method that can be applied to a user equipment according to Embodiment 1 of the present invention. The method provided by the embodiment of the present invention includes the following steps:

Step 201: The base station sends a resource allocation indication message to the user equipment, where the resource allocation indication message includes the number of resource units N _ALLOCATE allocated by the base station to the user equipment, where the number of resource units N _{ALLOCATE is} greater than the transport block list. The maximum number of resource units supported is N _MAX ;

Step 202: The base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N _ALLOCATE, and a predefined rule, that the user equipment is configured with a transport block. the size of.

In a specific implementation process, optionally, the base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N _ALLOCATE, and a predefined rule. The size of the transport block in which the user equipment is configured includes:

Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX Said N _i also satisfies:

N _ALLOCATE = N ₁ + N ₂ + ... + N _M .

In a specific implementation process, optionally, the user equipment determines, according to a predefined rule, the number of resource units N _i , including:

The device determines the user M; the user device based on the determination of the N _i M.

In a specific implementation process, optionally, the user equipment determines that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

In a specific implementation process, optionally, the user equipment determines that the M further includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a specific implementation process, optionally, determining, by the user equipment, the number of resource units N _i according to a predefined rule includes:

Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block. For example, in an LTE system, the size of the maximum coding block is specifically 6144.

In a specific embodiment of the process, optionally, the user equipment according to a modulation coding scheme MCS information transmitted from the base station and the number of resource units N _ALLOCATE, to determine the transport block user equipment is configured to include the size of :

The user equipment information and the resource unit number of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

According to the above technical solution, after the base station allocates more than N _MAX resource units to the base station, the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.

Example 3

The embodiment of the invention provides a user equipment, which can be used to implement a method for determining the size of a transport block proposed in Embodiment 1 of the present invention. The user equipment includes a processor and a transceiver, specifically:

Modulation and coding scheme MCS for the transceiver receives the base station transmits resource allocation and indication message sent by the base station, wherein said indication message indicating the resource allocation for the user equipment by the base station the number of assigned resource units N _ALLOCATE, wherein The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

The processor is configured to determine a quantity of resource units N _i according to a predefined rule, where

i = 1,2, ...... M, wherein M is an integer not less than 2, said N _i satisfies N _i ≤N _MAX, said N _i further _{satisfied: N ALLOCATE = N 1 + N} 2 + ...... + N _M ;

The processor is further configured to determine, according to the modulation and coding mode MCS information and the number of resource units N _i sent by the base station, a size of a transport block configured by the user equipment.

In a specific implementation process, the processor is configured to determine, according to a predefined rule, a quantity of resource units N _i , including:

The processor determines the M;

The processor is further based on the determination of the N _i M.

In a specific implementation process, optionally, the processor determines that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

In a specific implementation process, optionally, the determining that the M further includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a specific implementation process, optionally, the determining, by the processor, the number of resource units N _i according to a predefined rule includes:

The processor determines a corresponding transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.

In a specific implementation process, optionally, in the LTE system, the size of the maximum coding block is specifically 6144.

In a specific implementation process, optionally, the processing, according to the modulation and coding mode MCS information sent by the base station, and the number of resource units N _i , determining the size of the transport block configured by the user equipment includes:

The processor and the resource unit number information of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

The processor determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

According to the user equipment provided by the embodiment of the present invention, after the base station allocates more than N _MAX resource units thereto, the user equipment may still determine the size of the transport block based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.

Example 4

The embodiment of the invention provides a base station, which can be used to implement a method for determining the size of a transport block proposed in Embodiment 2 of the present invention. The base station includes a processor and a transceiver, more specifically:

The transceiver is configured to send, by the processor, a resource allocation indication message to the user equipment, where the resource allocation indication message includes a quantity of resource units N _ALLOCATE allocated by the processor to the user equipment, where The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

The transceiver is further configured to send, by using the scheduling of the processor, modulation coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N _ALLOCATE, and a predefined rule, The size of the transport block in which the user device is configured.

Optionally, the transceiver is further configured to send modulation and coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N _ALLOCATE, and the predefined The rule determines the size of the transport block in which the user equipment is configured, including:

Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX Said N _i also satisfies:

N _ALLOCATE = N ₁ + N ₂ + ... + N _M .

In a specific implementation process, the user equipment determines, according to a predefined rule, the number of resource units N _i , including:

The user equipment determines the M; the user equipment determines the Ni according to the M.

In a specific implementation process, optionally, the user equipment determines that the M includes:

The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .

In a specific implementation process, optionally, the determining, by the user equipment, that the M further includes:

The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.

In a specific implementation process, the determining, by the user equipment, the number of resource units N _i according to the predefined rule includes: determining, by the user equipment, the corresponding temporary according to the MCS and the number of resource units N _i A transport block size TBS _i , wherein the TBS _{i is} not greater than the size of the largest coded block. Specifically, for example, in an LTE system, the size of the maximum coding block is specifically 6144.

In a specific implementation process, optionally, the modulation and coding scheme to the user equipment transceiver according to the MCS information and the number of resource units N _ALLOCATE, to determine the transport block size of the user equipment is configured include:

The user device to temporarily transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

According to the above technical solution, after the base station allocates more than N _MAX resource units to the user equipment, the user equipment can still determine the size of the transport block based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, abbreviation: ROM), a random access memory (English: Random Access Memory, abbreviation: RAM), a magnetic disk or an optical disk, and the like. A variety of media that can store program code.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention by any person skilled in the art. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims (30)

1. A method for determining a transport block size, wherein a maximum number of resource units supported by a transport block size list is _NMAX , wherein the method includes:

   The user equipment according to the resource allocation indication message sent by the base station, the base station determines the resource unit allocated to the UE the number N _ALLOCATE, wherein the number of resource units N _ALLOCATE greater than the maximum supported transport block list resource unit number N _MAX ;

   Receiving, by the user, a modulation and coding mode MCS sent by the base station;

   Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2, . . . , M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX , N _i also satisfies: N _ALLOCATE = N ₁ + N ₂ + ... + N _M ;

   And determining, by the user equipment, the size of the transport block configured by the user equipment according to the modulation and coding mode MCS information sent by the base station and the number of resource units N _i .
2. The method according to claim 1, wherein the user equipment determines the number of resource units N _i according to a predefined rule, including:

   The user equipment determines the M;

   The user equipment according to the determination of the N _i M.
3. The method according to claim 2, wherein the determining, by the user equipment, the M comprises:

   The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .
4. The method according to claim 2 or 3, wherein the determining, by the user equipment, the M further comprises:

   The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
5. The method according to claim 1, wherein the determining, by the user equipment, the number of resource units N _i according to a predefined rule comprises:

   The user equipment determines the transport block size corresponding to the provisional TBS _i according to the MCS and the number of resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.
6. The method according to claim 5, wherein in the LTE system, the size of the maximum coding block is specifically 6144.
7. The method according to any one of claims 1 to 6, wherein the user equipment determines, according to the modulation and coding mode MCS information sent by the base station and the number of resource units N _i , that the user equipment is The size of the configured transport block includes:

   The user equipment information and the resource unit number of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

   The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

   TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .
8. A method for determining a transport block size, wherein a maximum number of resource units supported by a transport block size list is _NMAX , wherein the method includes:

   The base station sends a resource allocation indication message to the user equipment, where the resource allocation indication message includes the number of resource units N _ALLOCATE allocated by the base station to the user equipment, where the number of resource units N _{ALLOCATE is} greater than the maximum supported by the transport block list. Number of resource units N _MAX ;

   The base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines the size of the transport block configured by the user equipment according to the MCS, the N _ALLOCATE, and a predefined rule.
9. The method according to claim 8, wherein the base station further sends modulation coding mode MCS information to the user equipment, so that the user equipment is based on the MCS, the N _ALLOCATE, and a predefined The rule determines the size of the transport block configured by the user equipment, including:

   Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX said N _i further satisfied:

   N _ALLOCATE = N ₁ + N ₂ + ... + N _M .
10. The method according to claim 9, wherein the user equipment determines the number of resource units N _i according to a predetermined rule, including:

    The user equipment determines the M;

    The user equipment according to the determination of the N _i M.
11. The method according to claim 10, wherein the determining, by the user equipment, the M comprises:

    The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .
12. The method according to claim 10 or 11, wherein the determining, by the user equipment, the M further comprises:

    The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
13. The method according to claim 8, wherein the determining, by the user equipment, the number of resource units N _i according to a predefined rule comprises:

    Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.
14. The method according to claim 13, wherein in the LTE system, the size of the maximum coding block is specifically 6144.
15. The method according to any one of claims 9 to 14, wherein the user equipment determines, according to modulation coding mode MCS information sent by the base station and the number of resource units N _ALLOCATE , that the user equipment is The size of the configured transport block includes:

    The user equipment information and the resource unit number of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

    The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

    TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .
16. A user equipment, including a processor and a transceiver, characterized by:

    Modulation and coding scheme MCS for the transceiver receives the base station transmits resource allocation and indication message sent by the base station, wherein said indication message indicating the resource allocation for the user equipment by the base station the number of assigned resource units N _ALLOCATE, wherein The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

    The processor is configured to determine a resource unit number N _i according to a predefined rule, where i=1, 2, . . . , M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX , Said N _i also satisfies: N _ALLOCATE = N ₁ + N ₂ + ... + N _M ;

    The processor is further configured to determine, according to the modulation and coding mode MCS information and the number of resource units N _i sent by the base station, a size of a transport block configured by the user equipment.
17. The user equipment according to claim 16, wherein the processor is configured to determine a quantity of resource units N _i according to a predefined rule, including:

    The processor determines the M;

    The processor is further based on the determination of the N _i M.
18. The user equipment according to claim 17, wherein the processor determines that the M comprises:

    The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .
19. The user equipment according to claim 17 or 18, wherein the determining that the M further comprises:

    The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
20. The user equipment according to claim 16, wherein the determining, by the processor, the number of resource units N _i according to a predefined rule comprises:

    The processor determines a corresponding transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.
21. The user equipment according to claim 20, characterized in that in the LTE system, The size of the maximum coding block is specifically 6144.
22. The user equipment according to any one of claims 16 to 21, wherein the processing determines that the user equipment is determined according to a modulation and coding mode MCS information sent by the base station and the number of resource units N _i The size of the configured transport block includes:

    The processor and the resource unit number information of the MCS N _i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS _i according;

    The processor determines a transport block size TBS, wherein the transport block size TBS satisfies:

    TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .
23. A base station includes a processor and a transceiver, and is characterized by:

    The transceiver is configured to send, by the processor, a resource allocation indication message to the user equipment, where the resource allocation indication message includes a quantity of resource units N _ALLOCATE allocated by the processor to the user equipment, where The number of resource units N _{ALLOCATE is} greater than the maximum number of resource units supported by the transport block list N _MAX ;

    The transceiver is further configured to send, by using the scheduling of the processor, modulation coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N _ALLOCATE, and a predefined rule, The size of the transport block in which the user device is configured.
24. The base station according to claim 23, wherein the transceiver is further configured to MCS information to the user equipment transmitting modulation and coding scheme to the user equipment in accordance with the MCS, and the N _ALLOCATE The predefined rule determines the size of the transport block configured by the user equipment, including:

    Determining, by the user equipment, the number of resource units N _i according to a predefined rule, where i=1, 2...M, where the M is an integer not less than 2, and the N _i satisfies N _i ≤N _MAX said N _i further satisfied:

    N _ALLOCATE = N ₁ + N ₂ + ... + N _M .
25. The base station according to claim 24, wherein the user equipment determines the number of resource units N _i according to a predefined rule, including:

    The user equipment determines the M;

    The user equipment determines the Ni according to the M.
26. The base station according to claim 25, wherein the user equipment determines that the M comprises:

    The user equipment determines the M according to the N _ALLOCATE and the N _MAX , wherein the M is not less than a value rounded up by N _ALLOCATE /N _MAX .
27. The base station according to any one of claims 25 and 26, wherein the determining, by the user equipment, the M further comprises:

    The M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
28. The base station according to claim 23, wherein the determining, by the user equipment, the number of resource units N _i according to a predefined rule comprises:

    Corresponding to the user equipment determines the transport block size TBS _i temporary number according to the MCS and the resource units N _i, wherein said maximum TBS _i is not greater than the size of the coding block.
29. The base station according to claim 28, wherein in the LTE system, the size of the maximum coding block is specifically 6144.
30. The base station according to any one of claims 8 to 29, wherein the user equipment determines the user equipment according to the modulation and coding mode MCS information sent by the transceiver and the number of resource units N _ALLOCATE The size of the configured transport block includes:

    The user device to temporarily transport block size TBS _i N _i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N _i;

    The user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:

    TBS=TBS ₁ +TBS ₂ ......+TBS _i ......+TBS _M .

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