CN108353285B - Method for determining size of transmission block, user equipment and base station - Google Patents
Method for determining size of transmission block, user equipment and base station Download PDFInfo
- Publication number
- CN108353285B CN108353285B CN201580083875.5A CN201580083875A CN108353285B CN 108353285 B CN108353285 B CN 108353285B CN 201580083875 A CN201580083875 A CN 201580083875A CN 108353285 B CN108353285 B CN 108353285B
- Authority
- CN
- China
- Prior art keywords
- user equipment
- tbs
- transport block
- size
- determining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 84
- 230000005540 biological transmission Effects 0.000 title abstract description 25
- 238000013468 resource allocation Methods 0.000 claims abstract description 22
- GJWMYLFHBXEWNZ-UHFFFAOYSA-N tert-butyl (4-ethenylphenyl) carbonate Chemical compound CC(C)(C)OC(=O)OC1=CC=C(C=C)C=C1 GJWMYLFHBXEWNZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims 4
- 125000002306 tributylsilyl group Chemical group C(CCC)[Si](CCCC)(CCCC)* 0.000 description 74
- 239000010410 layer Substances 0.000 description 28
- 230000008569 process Effects 0.000 description 28
- 238000004891 communication Methods 0.000 description 7
- 238000013507 mapping Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 239000002356 single layer Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 101100313150 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TBS1 gene Proteins 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/04—Traffic adaptive resource partitioning
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a method for determining the size of a transmission block, which is used for still using the prior art when the number of allocated resource units is largeThe transport block size list determines a transport block size, the method comprising: the user equipment determines the resource unit quantity N allocated to the user equipment by the base station according to the resource allocation indication message sent by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX(ii) a The user receives a Modulation Coding Scheme (MCS) sent by the base station; the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM(ii) a The user equipment transmits the modulation coding scheme MCS information and the resource unit number N according to the base stationiAnd determining the size of the transport block configured by the user equipment.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, a user equipment, and a base station for determining a transport block size.
Background
Orthogonal Frequency Division Multiplexing (OFDM) technology is adopted by 3GPP organizations because of its advantages of strong multipath resistance, easy engineering implementation, etc., and is used as a key technology in LTE standards.
When the OFDM technology is applied to communication, physical resources that can be applied are generally divided into OFDM symbols in a time domain dimension and OFDM subcarriers in a frequency domain; the time-frequency lattice point of one OFDM symbol in the time domain and one OFDM subcarrier in the frequency domain form a minimum Resource granularity, which is called a Resource unit (english: Resource Element, abbreviation: RE).
In the existing LTE system, the transmission of services is generally based on scheduling of a base station, and the basic unit of scheduling is resource block pair: one Resource Block Pair (english: Resource Block Pair, abbreviation: RB-Pair) includes two Resource blocks (english: Resource Block, abbreviation: RB) that are consecutive in the time domain, one RB includes 7 OFDM symbols (6 OFDM symbols in the case of a long cyclic prefix) that are consecutive in the time domain, and 12 subcarriers that are consecutive in the frequency domain; one RB-Pair includes two RBs consecutive in a time domain, and in the current LTE standard, one RB-Pair occupies one subframe in time, i.e., 1 ms.
Generally, the scheduling process of the service roughly comprises the following steps:
a base station of an LTE system selects a modulation mode, a coding mode and a layer number for user equipment through Channel State Information (CSI) reported by the user equipment;
the base station determines the allocation of RB-Pair according to the Size of the current Transport Block (TBS for short);
the base station informs the user equipment of the selected modulation mode, coding mode, layer number and RB-Pair allocated to the user equipment; 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 service scheduling process that the TBS and RB-Pair allocation, the modulation scheme, the coding scheme, and the number of layers all have a corresponding relationship. In order to enable the base stations or user equipments provided by different equipment manufacturers to implement interconnection, these correspondences are standardized by the standard organization. Generally, these correspondences are stored in the base station or the user equipment in the form of a TBS table in specific implementation.
The LTE system will evolve towards adopting higher frequency points and larger bandwidth, which means that the amount of scheduled resources (e.g., RB-Pair) may be much larger than the amount of resources supported by the existing TBS table when the LTE base station implements service scheduling once in the future. This would make the existing TBS table unusable, directly resulting in the user equipment not communicating properly with the base station.
Disclosure of Invention
The embodiment of the invention provides a method for determining the size of a transmission block, which aims to solve the problem that the normal communication between user equipment and a base station cannot be realized when the quantity of resources scheduled at one time in the service scheduling process exceeds the quantity 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 NMAXThe method comprises the following steps:
the user equipment determines the resource unit quantity N allocated to the user equipment by the base station according to the resource allocation indication message sent by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The user receives a Modulation Coding Scheme (MCS) sent by the base station;
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
The user equipment transmits the modulation coding scheme MCS information and the resource unit number N according to the base stationiAnd determining the size of the transport block configured by the user equipment.
In a first possible implementation manner of the first aspect, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipment determines the M;
the user equipment rootDetermining the N from the Mi。
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the determining, by the user equipment, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
With reference to any one possible implementation manner of the first aspect and the second possible implementation manner of the first aspect, in a third possible implementation manner, the determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a fourth possible implementation manner of the first aspect, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipment according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, in an LTE system, the size of the largest coding block is specifically 6144.
With reference to the first aspect, or any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner, the ue is configured to send Modulation and Coding Scheme (MCS) information and the number of resource units (N) according to the MCS information and the number of resource units (MCS) sent by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
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 NMAXThe method comprises the following steps:
a base station sends a resource allocation indication message to user equipment, wherein the resource allocation indication message comprises the resource unit number N allocated to the user equipment by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The base station also sends Modulation Coding Scheme (MCS) information to the user equipment so that the user equipment can conveniently use the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured to.
In a first possible implementation manner of the second aspect, the base station further sends modulation and coding scheme, MCS, information to the user equipment, so that the user equipment can conveniently determine the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM。
with reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the ue determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the user equipment determines the M;
the user equipment determines the N according to the Mi。
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the determining, by the user equipment, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
With reference to the second possible implementation manner of the second aspect and any one possible implementation manner of the third possible implementation manner, in a fourth possible implementation manner, the determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a fifth possible implementation manner of the second aspect, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipment according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, in an LTE system, the size of the largest coding block is specifically 6144.
With reference to any one of the first to sixth possible implementation manners of the second aspect, in a seventh possible implementation manner, the ue is configured to send Modulation and Coding Scheme (MCS) information and the number of resource units (N) according to the MCS information sent by the base stationALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
in a third aspect, an embodiment of the present invention provides a user equipment, including a processor and a transceiver, where:
the transceiver is used for receiving a resource allocation indication message sent by a base station and a Modulation and Coding Scheme (MCS) sent by the base station, wherein the resource allocation indication message indicates the resource unit number N allocated by the base station to the user equipmentALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The processor is configured to determine a resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
The processor is further configured to determine the MCS information and the N number of resource units according to the MCS information sent by the base stationiAnd determining the size of the transport block configured by the user equipment.
In a first possible implementation manner of the third aspect, the processor is configured to determine the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the processor determining the M;
the processor further determines the N according to the Mi。
With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the determining, by the processor, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
With reference to any one of the first possible implementation manner and the second possible implementation manner of the third aspect, in a third possible implementation manner, the determining, by the processor, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a fourth possible implementation manner of the third aspect, the processor determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the processor is used for processing the MCS and the resource unit number N according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, in an LTE system, the size of the largest coding block is specifically 6144.
With reference to the third aspect, or any one of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner, the processing is performed according to Modulation and Coding Scheme (MCS) information and the number of resource units (N) sent by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the processor is used for processing the MCS information and the resource unit quantity NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The processor determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
in a fourth aspect, an embodiment of the present invention provides a base station, including a processor and a transceiver, where:
the transceiver is configured to send a resource allocation indication message to the ue under the scheduling of the processor, where the resource allocation indication message includes the number N of resource units allocated by the processor to the ueALLOCATEWherein said dataNumber of source units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The transceiver is further configured to send modulation and coding scheme, MCS, information to the ue under the scheduling of the processor, so that the ue can use the MCS and the N as referenceALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured to.
In a first possible implementation manner of the fourth aspect, the transceiver is further configured to send modulation and coding scheme, MCS, information to the user equipment, so that the user equipment can conveniently transmit the MCS information to the user equipment according to the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM。
with reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the ue determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the user equipment determines the M;
the user equipment determines the N according to the Mi。
With reference to the second possible implementation manner of the fourth aspect, in a third possible implementation manner, the determining, by the user equipment, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
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 determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a fifth possible implementation manner of the fourth aspect, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipment according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner, in an LTE system, the size of the largest 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 manner, the ue is configured to send Modulation and Coding Scheme (MCS) information and the number of resource units (N) according to the MCS information sent by the transceiverALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
according to the technical scheme, the user equipment allocates more than N to the base stationMAXAfter a resource unit, the size of the transport block can still be determined based on the existing transport block size table. The problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, and the trouble of re-formulating the transmission block size table is also saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for determining a size of a transport block according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for determining a size of a transport block according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the technical solution of the embodiment of the present invention may be applied to an LTE communication system, and may also be applied to other similar communication systems.
It should be understood that, in the embodiment of the present invention, a User Equipment (UE) may be referred to as a Terminal (Terminal), a Mobile Station (MS), a Mobile Terminal (MS), and the like, and the User Equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the User Equipment may be a Mobile phone (or referred to as a "cellular" phone), a computer with a Mobile Terminal, and the like, and for example, the User Equipment may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device, and they exchange voice and/or data with the Radio Access Network.
In this embodiment of the present invention, the base station may be an evolved Node B (eNB or e-NodeB) in an LTE system or an LAA-LTE system, a macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP) or a Transmission Point (TP), and the present invention is not limited thereto. For convenience of description, the following description will be made taking a base station and a user equipment as examples.
The service scheduling of the LTE system is implemented by a base station sending a control channel, where the control channel may carry scheduling information of an uplink or downlink data channel, the scheduling information includes control information such as RA information, MCS, HARQ process number, and the user equipment UE receives the downlink data channel or sends the uplink data channel according to the scheduling information carried in the control channel. For scheduling, the most central is to determine MCS, resource block to RB pair allocation and number of layers for the scheduled UE. Specifically, for downlink data scheduling as an example, the base station selects an MCS and the number of layers for the UE based on channel state information CSI reported by the UE; then, the allocation of the RB pair is determined according to the size of the data packet TBS which needs to be transmitted currently. Correspondingly, after receiving the PDCCH, the UE determines the TBS according to the RB pair allocation, MCS, and layer number indication in the PDCCH, and then performs operations such as demodulation and decoding. It can be seen that the TBS has a correspondence with the RB pair allocation, MCS, and number of layers, which is predefined, for example, stored in the form of a table in the UE and the base station, respectively.
The LTE system continuously evolves toward a direction of adopting higher frequency points and larger bandwidth, which means that the LTE system in the future can adopt scheduling with larger bandwidth, or the number of resource units scheduled at one time is greatly increased by adopting scheduling of more subframes in consideration of the requirement of high frequency points and low delay, where the resource units mentioned here are similar to RB pair in the current LTE system, but the number of protected REs may change. Since the number of resource units scheduled is greatly increased, the TBS specified in the current TBS table is not enough, and therefore a larger TBS needs to be designed to meet the above requirement.
In general, if a larger TBS is designed according to the original design concept of the TBS table, the design complexity is very large, and the design does not have better scalability, that is, each time the TBS needs to be increased, the TBS needs to be designed according to the above rules, and the TBS table in the standard becomes increasingly large and is not suitable for maintenance. First, the design concept of the existing TBS table is described as follows:
step 1: determining CQI and MCS
Determining an operating interval of the SNR, such as from-7 dB to 20 dB;
in the SNR interval, link simulation is carried out on various modulation modes (QPSK, 16QAM, 64QAM) and coding rates (1/3, 1/2, 2/3, 3/4, 5/6 and the like) to obtain a plurality of BLER-to-SNR link simulation curves, and each curve represents the embodiment of spectrum efficiency;
based on the curve, 15 combinations (corresponding to different spectral efficiencies) of the multiple modulation schemes and coding rates are selected as CQIs, specifically indexes 1 to 15 shown in table 1, and index 0 is CQI overflow, where BLER is 0.1 and SNR interval is 1.892 dB; it can be seen that the spectral efficiency shown in the right column of table 1 is obtained by modulating order × coding rate, taking index 1 as an example, the spectral efficiency is 0.1523 obtained by multiplying the modulating order 2 of QPSK by coding rate 78/1024;
the 15 CQIs are interpolated to obtain 29 MCSs.
TABLE 1 CQI TABLE
Step 2: building a TBS table based on MCS and RB calls allocation
In principle, based on the above MCS, in combination with the allocation of RB pair, the number of originally transmittable bits, i.e. the transport block size TBS, can be determined.
However, the inner interleaver of the Turbo channel encoder of LTE is required to satisfy QPP characteristics to achieve the capability of parallel processing of Turbo codes, thereby improving the efficiency of Turbo. Specifically, the Turbo encoder only receives a limited number of values satisfying the QPP principle, and specifically, the values satisfying the QPP interleaver are shown in table 2. As can be seen from table 2, one column of Ki is the limited code block size CBS supported by the Turbo encoder. The maximum CBS supported by the Turbo encoder of LTE is 6144, if the TBS is greater than 6144, the TB needs to be divided into multiple CBS for respective encoding, and all TBSs currently supported by LTE support CB divisions of equal size, and the padding bit after division is 0. The maximum CBS value limit 6144 is because, although the longer the CB of the Turbo code is, the greater the coding gain is, the increase of the coding gain is not obvious by the level of 6144, and the coding complexity is increased by continuously increasing the CBS.
| i | Ki | f1 | f2 | i | Ki | f1 | f2 | i | Ki | f1 | f2 | i | Ki | f1 | f2 |
| 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 | 22 | 54 | 464 | 247 | 58 | 101 | 1312 | 21 | 82 | 148 | 3584 | 57 | 336 |
| 8 | 96 | 11 | 24 | 55 | 472 | 29 | 118 | 102 | 1344 | 211 | 252 | 149 | 3648 | 313 | 228 |
| 9 | 104 | 7 | 26 | 56 | 480 | 89 | 180 | 103 | 1376 | 21 | 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 | 21 | 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 | 21 | 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 | 23 | 48 | 67 | 624 | 41 | 234 | 114 | 1728 | 127 | 96 | 161 | 4416 | 35 | 138 |
| 21 | 200 | 13 | 50 | 68 | 640 | 39 | 80 | 115 | 1760 | 27 | 110 | 162 | 4480 | 233 | 280 |
| 22 | 208 | 27 | 52 | 69 | 656 | 185 | 82 | 116 | 1792 | 29 | 112 | 163 | 4544 | 357 | 142 |
| 23 | 216 | 11 | 36 | 70 | 672 | 43 | 252 | 117 | 1824 | 29 | 114 | 164 | 4608 | 337 | 480 |
| 24 | 224 | 27 | 56 | 71 | 688 | 21 | 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 | 23 | 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 | 21 | 120 | 83 | 880 | 137 | 110 | 130 | 2432 | 265 | 456 | 177 | 5440 | 43 | 170 |
| 37 | 328 | 21 | 82 | 84 | 896 | 215 | 112 | 131 | 2496 | 181 | 468 | 178 | 5504 | 21 | 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 | 21 | 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 | 23 | 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 | 23 | 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 inner interleaver parameters for Turbo encoder
Therefore, when the TBS table is constructed, it cannot be easily determined based on MCS and RB pair allocation. Instead, a value set satisfying the QPP interleaver is selected according to the QPP characteristics; 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 value set as the final TBS. Furthermore, the segmentation of the TB is also considered, i.e. each CBS of equal size after segmentation must also be in the above set of values.
As 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 relation of MCS index, modulation order, TBS index
TABLE 4 relation of TBS values to TBS index and RB pair allocation
Step 3: for the case that 1 code word is mapped to multiple layers, a new mapping relation is introduced
The TBS table described above only supports one layer of transmission. The TBS also needs to be extended if it can be transmitted on multiple layers for one code. Since the MCS is determined by the current channel conditions and the number of RB pairs occupied by one layer and N layer transmissions is the same, the extended TBS can be looked up in 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 TBS mapping from one layer to two layers
Specifically, for two-tier transmission, if the number N of RB pairs allocated is between 1 and 110/2, then 2 × N may be used to look up the single-tier TBS table; if N is greater than 110/2, a single-layer to two-layer TBS mapping relationship needs to be established, as shown in table 5.
TABLE 6 TBS mapping from one layer to three layers
Specifically, for three-tier transmission, if the number N of RB pairs allocated is between 1 and 110/3, then the single-tier TBS table may be looked up with 3 × N; if N is greater than 110/3, a single-layer to three-layer TBS mapping relationship needs to be established, as shown in table 6.
TABLE 7 TBS mapping from one layer to four layers
Specifically, for a four-tier transmission, if the number N of RB pairs allocated is between 1 and 110/4, then 4 × N may be used to look up the single-tier TBS table; if N is greater than 110/4, a single-layer to three-layer TBS mapping relationship needs to be established, as shown in table 7.
Based on the TBS design process, if the resource unit for scheduling increases, for example, RB pair is taken as an example, and it is assumed that more than 110 RB pairs are provided, then each increase needs to repeat at least step 2 (assuming that SNR working interval is unchanged and number of layers is not increased), design complexity increases, and scalability is poor. Furthermore, as LTE continues to evolve, a large number of TBS tables need to be designed and stored, and the complexity of both standards and implementations increases.
In order to solve the problems faced, embodiments of the present invention will be described in detail below with reference to specific examples. It should be noted that these examples are only for helping the skilled person to better understand the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention; it should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Example 1
The embodiment of the invention provides a method for determining the size of a transmission block, which aims to solve the technical problem that the existing TBS table cannot support the excessive number of resources scheduled by a base station, wherein the maximum resource unit number supported by a transmission block size list is NMAX，NMAXIs a positive integer, N is a positive integer in the existing LTE systemMAXSpecifically 110. Fig. 1 shows a flow chart of a method proposed by an embodiment of the present invention, the steps shown in the diagram comprising:
step 101, a user equipment determines a resource unit quantity N allocated to the user equipment by a base station according to a resource allocation indication message sent by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
102, the user receives a Modulation and Coding Scheme (MCS) sent by the base station;
step 103, the UE determines the resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
Step 103, the user equipment transmits the modulation and coding scheme MCS information and the resource unit number N according to the base stationiAnd determining the size of the transport block configured by the user equipment.
In a specific implementation process, optionally, the ue sends the MCS information and the number of resource units N according to the Modulation and Coding Scheme (MCS) sent by the base stationiEnsure thatDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining a temporary transport block size TBS corresponding to the number Ni of the resource unitsi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
in the process of implementing step 103, optionally, the ue determines the number of resource units N according to a predefined ruleiThe method of (3) may further comprise:
the user equipment determines the M;
the user equipment determines the N according to the Mi。
Further optionally, the method for the user equipment to determine the M may include:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
Further optionally, the determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer. In the implementation procedure based on the LTE system, K is 4.
According to the technical scheme, the user equipment allocates more than N to the base stationMAXAfter a resource unit, the size of the transport block can still be determined based on the existing transport block size table. The problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, and the trouble of re-formulating the transmission block size table is also saved.
In another optional technical solution, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipmentAccording to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block. Specifically, in the LTE system, the size of the largest coding block is 6144.
According to the method provided by the embodiment of the invention after the characteristic is combined, the problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, the trouble of re-formulating the transmission block size table is saved, and the segmentation loss can be reduced, so that the number of disputed coding blocks 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 executed by a base station to correspond to the method, which is provided in embodiment 1 of the present invention and is applicable to a user equipment, where the method provided in the embodiment of the present invention includes the following steps:
step 201, a base station sends a resource allocation indication message to a user equipment, where the resource allocation indication message includes a resource unit number N allocated to the user equipment by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
Step 202, the base station further sends Modulation and Coding Scheme (MCS) information to the user equipment, so that the user equipment can conveniently use the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured to.
In a specific implementation process, optionally, the base station further sends modulation and coding scheme, MCS, information to the user equipment, so that the user equipment can conveniently use the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM。
in a specific implementation process, optionally, the ue determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the user equipment determines the M; the user equipment determines the N according to the Mi。
In a specific implementation process, optionally, the determining, by the user equipment, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
In a specific implementation process, optionally, the determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a specific implementation, optionally, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the user equipment according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block. For example, in the LTE system, the size of the largest coding block is 6144 specifically.
In a specific implementation process, optionally, the ue sends the MCS information and the number of resource units N according to the Modulation and Coding Scheme (MCS) sent by the base stationALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining a temporary transport block size TBS corresponding to the number Ni of the resource unitsi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
according to the technical scheme, the user equipment allocates more than N to the base stationMAXAfter a resource unit, the size of the transport block can still be determined based on the existing transport block size table. The problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, and the trouble of re-formulating the transmission block size table is also saved.
Example 3
The embodiment of the present invention provides a user equipment, which may be used to implement the method for determining a size of a transport block provided in embodiment 1 of the present invention. The user equipment comprises a processor and a transceiver, specifically:
the transceiver is used for receiving a resource allocation indication message sent by a base station and a Modulation and Coding Scheme (MCS) sent by the base station, wherein the resource allocation indication message indicates the resource unit number N allocated by the base station to the user equipmentALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The processor is configured to determine a resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
The processor is further configured to determine the MCS information and the N number of resource units according to the MCS information sent by the base stationiAnd determining the size of the transport block configured by the user equipment.
In a specific implementation process, optionally, the processor is configured to determine the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the processor determining the M;
the processor further determines the N according to the Mi。
In a specific implementation process, optionally, the determining, by the processor, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
In a specific implementation process, optionally, the determining, by the processor, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a specific implementation process, optionally, the processor determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the processor is used for processing the MCS and the resource unit number N according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
In a specific implementation process, optionally, in the LTE system, the size of the largest coding block is 6144 specifically.
In a specific implementation process, optionally, the processing is performed according to the MCS information and the number of resource units N sent by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the processor is used for processing the MCS information and the resource unit quantity NiDetermining a temporary transport block size TBS corresponding to the number Ni of the resource unitsi；
The processor determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
according to the user equipment provided by the embodiment of the invention, the user equipment allocates more than N to the user equipment at the base stationMAXAfter a resource unit, stillThe size of the transport block may be determined based on an existing transport block size table. The problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, and the trouble of re-formulating the transmission block size table is also saved.
Example 4
The embodiment of the present invention provides a base station, which can be used to implement the method for determining the size of a transport block provided in embodiment 2 of the present invention. The base station comprises a processor and a transceiver, more specifically:
the transceiver is configured to send a resource allocation indication message to the ue under the scheduling of the processor, where the resource allocation indication message includes the number N of resource units allocated by the processor to the ueALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The transceiver is further configured to send modulation and coding scheme, MCS, information to the ue under the scheduling of the processor, so that the ue can use the MCS and the N as referenceALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured to.
In a specific implementation process, optionally, the transceiver is further configured to send modulation and coding scheme, MCS, information to the user equipment, so that the user equipment can conveniently send the modulation and coding scheme, MCS, and N to the user equipment according to the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM。
in a specific implementation process, optionally, the ue determines the resource unit number N according to a predefined ruleiComprises that：
The user equipment determines the M; the user equipment determines the Ni according to the M.
In a specific implementation process, optionally, the determining, by the user equipment, the M includes:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values.
In a specific implementation process, optionally, the determining, by the user equipment, the M further includes:
and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
In a specific implementation process, optionally, the ue determines the number of resource units N according to a predefined ruleiThe method comprises the following steps: the user equipment according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block. Specifically, for example, in the LTE system, the size of the largest coding block is 6144 specifically.
In a specific implementation process, optionally, the ue sends the MCS information and the number of resource units N according to the Modulation and Coding Scheme (MCS) sent by the transceiverALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
according to the technical scheme, the base station allocates more than N to the user equipmentMAXAfter a resource unit, the user equipment can still be based on the existing oneThe transport block size table determines the size of the transport block. The problem of the transmission block size table corresponding to a larger resource unit can be solved by using a smaller storage space, and the trouble of re-formulating the transmission block size table is also saved.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a 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 stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (18)
1. A method of determining the size of a transport block, wherein the maximum number of resource units supported by a transport block size list is NMAXCharacterized in that the method comprises:
the user equipment determines the resource unit quantity N allocated to the user equipment by the base station according to the resource allocation indication message sent by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The user receives a Modulation Coding Scheme (MCS) sent by the base station;
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
The user equipment transmits the modulation coding scheme MCS information and the resource unit number N according to the base stationiDetermining a size of a transport block configured by the user equipment;
wherein the UE determines the resource unit number N according to a predefined ruleiThe method comprises the following steps: the user equipment determines the M; the user equipment determines the N according to the Mi；
Wherein the user equipment determining the M comprises:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values;
or,
wherein the user equipment determining the M further comprises: and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
2. The method according to claim 1, wherein the UE is configured to transmit the MCS information and the N number of resource units according to the Modulation and Coding Scheme (MCS) transmitted by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining a temporary transport block size TBS corresponding to the resource unit quantity Nii；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
3. the method according to claim 1, wherein the UE is configured to transmit the MCS information and the N number of resource units according to the Modulation and Coding Scheme (MCS) transmitted by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the user equipment is according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiSaid TBSiNot larger than the size of the largest coding block.
4. Method according to claim 3, wherein in an LTE system the size of the largest coding block is 6144.
5. A method of determining the size of a transport block, wherein the maximum number of resource units supported by a transport block size list is NMAXCharacterized in that the method comprises:
a base station sends a resource allocation indication message to user equipment, wherein the resource allocation indication message comprises the resource unit number N allocated to the user equipment by the base stationALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The base station also sends Modulation Coding Scheme (MCS) information to the user equipment so that the user equipment can conveniently use the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured with;
wherein the base station is also directed toThe user equipment sends Modulation Coding Scheme (MCS) information so that the user equipment can conveniently send Modulation Coding Scheme (MCS) information according to the MCS and the NALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM；
wherein the UE determines the resource unit number N according to a predefined ruleiThe method comprises the following steps: the user equipment determines the M; the user equipment determines the N according to the Mi；
Wherein the user equipment determining the M comprises:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values;
or,
the user equipment determining the M further comprises: and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
6. The method of claim 5, wherein the UE is configured to perform the Modulation and Coding Scheme (MCS) information and the number of resource units (N) according to the MCS information transmitted by the base stationALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining a temporary transport block size TBS corresponding to the resource unit quantity Nii；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
7. the method of claim 5, wherein the UE is configured to perform the Modulation and Coding Scheme (MCS) information and the number of resource units (N) according to the MCS information transmitted by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the user equipment is according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiSaid TBSiNot larger than the size of the largest coding block.
8. The method according to claim 7, wherein the size of the largest coding block is 6144 in an LTE system.
9. A user equipment comprising a processor and a transceiver, characterized in that:
the transceiver is used for receiving a resource allocation indication message sent by a base station and a Modulation and Coding Scheme (MCS) sent by the base station, wherein the resource allocation indication message indicates the resource unit number N allocated by the base station to the user equipmentALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The processor is configured to determine a resource unit number N according to a predefined ruleiWherein i is 1,2, … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies: n is a radical ofALLOCATE＝N1+N2+……+NM；
The processor is further configured to determine the size of the transport block configured by the user equipment according to the modulation and coding scheme MCS information and the number of resource units Ni sent by the base station;
wherein the processor is configured to determine the number of resource units N according to a predefined ruleiThe method comprises the following steps:
the above-mentionedThe processor determines the M; the processor further determines the N according to the Mi；
Wherein the processor determining the M comprises:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values;
or,
wherein the processor determining the M further comprises: and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
10. The UE of claim 9, wherein the processor is configured to determine the MCS information and the N number of resource units based on a Modulation and Coding Scheme (MCS) sent by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the processor is used for processing the MCS information and the resource unit quantity NiDetermining a temporary transport block size TBS corresponding to the resource unit quantity Nii；
The processor determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
11. the UE of claim 9, wherein the processor is configured to determine the MCS information and the N number of resource units based on a Modulation and Coding Scheme (MCS) sent by the base stationiDetermining the size of the transport block configured by the user equipment comprises:
the processor is used for processing the MCS and the resource unit number N according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiSaid TBSiNot larger than the size of the largest coding block.
12. The UE of claim 11, wherein in an LTE system, the size of the largest coding block is 6144.
13. A base station comprising a processor and a transceiver, characterized in that:
the transceiver is configured to send a resource allocation indication message to the ue under the scheduling of the processor, where the resource allocation indication message includes the number N of resource units allocated by the processor to the ueALLOCATEWherein the number of resource units NALLOCATEGreater than the maximum number of resource units N supported by the transport block listMAX；
The transceiver is further configured to send modulation and coding scheme, MCS, information to the ue under the scheduling of the processor, so that the ue can use the MCS and the N as referenceALLOCATEAnd a predefined rule determining the size of the transport block the user equipment is configured with;
wherein the transceiver is further configured to send Modulation and Coding Scheme (MCS) information to the UE, so that the UE can use the MCS and the N to perform modulation and codingALLOCATEAnd a predefined rule determining the size of the transport block for which the user equipment is configured, comprising:
the user equipment determines the resource unit number N according to a predefined ruleiWherein i is 1,2 … … M, wherein M is an integer of not less than 2, and N isiSatisfies Ni≤NMAXSaid N isiAlso satisfies:
NALLOCATE＝N1+N2+……+NM；
wherein the UE determines the resource unit number N according to a predefined ruleiThe method comprises the following steps:
the user equipment determines the M; the user equipment determines the N according to the Mi；
Wherein the user equipment determining the M comprises:
the user equipment is according to the NALLOCATEAnd said NMAXDetermining the M, wherein the M is not less than NALLOCATE/NMAXRounded up values;
or,
wherein the user equipment determining the M further comprises: and M is not more than the maximum number of layers K supported by the transport block size list, wherein K is a positive integer.
14. The base station of claim 13, wherein the UE is configured to transmit the MCS information and the N number of resource units according to the Modulation and Coding Scheme (MCS) transmitted by the transceiverALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment according to the MCS information and the resource unit number NiDetermining the number of resource units NiCorresponding temporary transport block size, TBSi；
The user equipment determines a transport block size, TBS, wherein the transport block size, TBS, satisfies:
TBS＝TBS1+TBS2……+TBSi……+TBSM。
15. the base station of claim 13, wherein the UE is configured to transmit the MCS information and the N number of resource units according to the Modulation and Coding Scheme (MCS) transmitted by the transceiverALLOCATEDetermining the size of the transport block configured by the user equipment comprises:
the user equipment is according to the MCS and the resource unit number NiDetermining a corresponding temporary transport block size, TBSiWherein the TBSiNot larger than the size of the largest coding block.
16. Base station according to claim 15, characterized in that in an LTE system the size of the largest coding block is particularly 6144.
17. A computer-readable storage medium, storing a computer program, wherein the computer program is configured to cause a computer device to perform the method of any one of claims 1 to 4.
18. A computer-readable storage medium, storing a computer program, wherein the computer program is configured to cause a computer device to perform the method of any one of claims 5 to 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/092101 WO2017063193A1 (en) | 2015-10-16 | 2015-10-16 | Transport block size determining method, user equipment and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108353285A CN108353285A (en) | 2018-07-31 |
| CN108353285B true CN108353285B (en) | 2021-02-05 |
Family
ID=58517015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580083875.5A Active CN108353285B (en) | 2015-10-16 | 2015-10-16 | Method for determining size of transmission block, user equipment and base station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108353285B (en) |
| WO (1) | WO2017063193A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687936B (en) * | 2017-10-19 | 2021-09-28 | 普天信息技术有限公司 | Method and device for determining size of service channel transmission block |
| CN109803426B (en) * | 2017-11-17 | 2023-04-07 | 华为技术有限公司 | Method and device for transmitting data |
| WO2020199044A1 (en) * | 2019-03-29 | 2020-10-08 | 华为技术有限公司 | Method and apparatus for determining tbs |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448122A (en) * | 2011-12-30 | 2012-05-09 | 中兴通讯股份有限公司 | Method and base station for confirming size of transmission block in sub-frame |
| CN102684816A (en) * | 2011-03-09 | 2012-09-19 | 中兴通讯股份有限公司 | Hot-cell coverage data transmission method, device and base station |
| WO2013188340A2 (en) * | 2012-06-12 | 2013-12-19 | Qualcomm Incorporated | Transport block size determination in new carrier type in lte |
| CN104144029A (en) * | 2013-05-09 | 2014-11-12 | 中兴通讯股份有限公司 | Method for determining size of transmission block, base station and terminal |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101526990B1 (en) * | 2008-01-31 | 2015-06-11 | 엘지전자 주식회사 | Method for determining transport block size and signal transmission method using the same |
| CN101867440A (en) * | 2009-04-15 | 2010-10-20 | 中兴通讯股份有限公司 | Preprocessing method for segmenting code blocks |
| CN101931501B (en) * | 2010-08-27 | 2016-06-29 | 中兴通讯股份有限公司 | A kind of method determining transport block size and device |
| WO2012042889A1 (en) * | 2010-09-30 | 2012-04-05 | パナソニック株式会社 | Transmission device and transmission method |
| WO2013119158A1 (en) * | 2012-02-06 | 2013-08-15 | Telefonaktiebolaget L M Ericsson (Publ) | User equipment, network node and methods therein for determining a transport block size in downlink transmissions in a telecommunications system |
| CN103378924B (en) * | 2012-04-18 | 2018-09-11 | 中兴通讯股份有限公司 | The determination method and device of transport block size, synchronous method, apparatus and system |
| CN103634851B (en) * | 2012-08-27 | 2016-08-31 | 重庆重邮信科通信技术有限公司 | The acquisition methods of a kind of transport block size and device |
| KR101717869B1 (en) * | 2013-03-21 | 2017-03-17 | 후아웨이 디바이스 컴퍼니 리미티드 | Data transmission method, base station, and user equipment |
-
2015
- 2015-10-16 CN CN201580083875.5A patent/CN108353285B/en active Active
- 2015-10-16 WO PCT/CN2015/092101 patent/WO2017063193A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684816A (en) * | 2011-03-09 | 2012-09-19 | 中兴通讯股份有限公司 | Hot-cell coverage data transmission method, device and base station |
| CN102448122A (en) * | 2011-12-30 | 2012-05-09 | 中兴通讯股份有限公司 | Method and base station for confirming size of transmission block in sub-frame |
| WO2013188340A2 (en) * | 2012-06-12 | 2013-12-19 | Qualcomm Incorporated | Transport block size determination in new carrier type in lte |
| CN104144029A (en) * | 2013-05-09 | 2014-11-12 | 中兴通讯股份有限公司 | Method for determining size of transmission block, base station and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017063193A1 (en) | 2017-04-20 |
| CN108353285A (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11963196B2 (en) | Resource assignment for single and multiple cluster transmission | |
| CN109803426B (en) | Method and device for transmitting data | |
| CN111448839B (en) | User equipment, base station and wireless communication method | |
| CN106464428B (en) | System and method for efficient TBS table design using 256QAM in a cellular communication network | |
| JP5113844B2 (en) | Control signaling depending on link adaptation | |
| US8711671B2 (en) | Extension of physical downlink control channel coverage | |
| RU2554539C2 (en) | Radio communication base station device and radio communication method used for multi-carrier communication | |
| CN105706482B (en) | Channel state reporting method and user equipment | |
| CN105144817A (en) | Systems and methods for demodulation reference signal selection | |
| CN114258650B (en) | Apparatus and method for managing soft buffers in a wireless communication system | |
| CN102036354B (en) | Method and device for allocating power to downlink control channel, and base station | |
| CN102893652B (en) | Radio communication device, Resources allocation Notification Method and data distributing method | |
| CN107733553B (en) | Transmission method and device and reception method and device for transmission block | |
| CN112134649B (en) | Method for transmitting data and transmitting terminal equipment | |
| CN101568145B (en) | LTE system CQI reporting implementation method | |
| CN107733560B (en) | Data segmentation method and device and terminal | |
| CN108353285B (en) | Method for determining size of transmission block, user equipment and base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |