CN109150370B - Method for determining size of transmission block and communication equipment - Google Patents
Method for determining size of transmission block and communication equipment Download PDFInfo
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- CN109150370B CN109150370B CN201710444361.9A CN201710444361A CN109150370B CN 109150370 B CN109150370 B CN 109150370B CN 201710444361 A CN201710444361 A CN 201710444361A CN 109150370 B CN109150370 B CN 109150370B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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Abstract
The invention provides a method for determining the size of a transmission block and communication equipment, wherein the method comprises the following steps: determining a first transport block size index; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block. The invention determines the size of the transmission block by reflecting the physical transmission resource quantity of the time domain symbol scheduling period and by the transmission block size index and the physical transmission resource quantity, and can be suitable for a more flexible and accurate mobile communication system of the time domain scheduling period, thereby more accurately determining the size of the transmission block and realizing more accurate utilization of the physical resource.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for determining a size of a transport block and a communication device.
Background
A frame structure of a conventional LTE (Long Term Evolution) only allows a minimum frame structure scheduling period of 1ms, and in a 5G (5th-Generation, fifth Generation mobile communication technology) NR (New Radio) mobile communication system, one or several symbols are allowed to serve as a minimum scheduling period, which can achieve a shorter scheduling delay and a faster service initiation compared to the LTE.
In LTE, the Transport Block Size is mainly determined based on a TBS (Transport Block Size) index and the number of occupied PRBs (Physical Resource blocks). Since a 1ms scheduling period is adopted in LTE, and a symbol-level scheduling period has been introduced in a 5G NR system, the determined transport block size used in LTE is no longer suitable for the 5G NR system. Although the transmission of the symbol-level scheduling period is introduced in the LTE-a Pro system in the later stage, the method of converting the TBS table in the LTE is still used, and the accurate utilization of physical resources cannot be realized.
It can be seen that the existing method for determining the size of the transport block has the problem that it is no longer applicable to the mobile communication system that introduces the symbol-level scheduling period.
Disclosure of Invention
The embodiment of the invention provides a method for determining the size of a transmission block and communication equipment, which are used for solving the problem that the existing method for determining the size of the transmission block is not suitable for a mobile communication system introducing a symbol-level scheduling period any more.
In a first aspect, an embodiment of the present invention provides a method for determining a size of a transport block, including:
determining a first transport block size index;
determining a first physical transmission resource quantity;
determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size;
wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
In a second aspect, an embodiment of the present invention further provides a communication device, including:
a first determining module for determining a first transport block size index;
a second determining module, configured to determine the first number of physical transmission resources;
a third determining module, configured to determine, according to a mapping relationship between a transport block size index, a number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first number of physical transmission resources;
wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
In a third aspect, an embodiment of the present invention further provides another communication device, including a memory, a processor, and a program for determining a size of a transport block, which is stored in the memory and is executable on the processor; the processor implements the above-described method of determining the transport block size when executing the program for determining the transport block size.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a program for determining a transport block size is stored, where the program for determining a transport block size is executed by a processor to implement the steps in the method for determining a transport block size.
In this way, in the embodiment of the present invention, the physical transmission resource is described in a time domain by using a symbol as a unit, and then the size of the transmission block is determined by the size index of the transmission block and the number of the physical transmission resource, which can be applied to a mobile communication system with a more flexible and accurate time domain scheduling period, so that the size of the transmission block is determined more accurately, and more accurate utilization of the physical resource is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced 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 inventive exercise.
FIG. 1 is a schematic diagram of a frame structure of a 5G NR system;
fig. 2 is a flowchart of a method for determining a transport block size according to an embodiment of the present invention;
fig. 2-1 is a schematic diagram of occupying time-frequency resources by data according to an embodiment of the present invention;
fig. 2-2 is a second schematic diagram of occupying time-frequency resources by data according to an embodiment of the present invention;
fig. 2-3 are schematic diagrams of time-frequency resources occupied by data with pilot frequency according to an embodiment of the present invention;
fig. 2-4 are schematic diagrams of time-frequency resources occupied by data when resources are occupied according to an embodiment of the present invention;
fig. 3 is one of the structural diagrams of a communication apparatus provided by the embodiment of the present invention;
fig. 4 is a second block diagram of a communication device according to an embodiment of the present invention;
fig. 5 is a third block diagram of a communication device according to an embodiment of the present invention;
fig. 6 is a fourth structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
In order to more clearly understand the technical solution of the embodiment of the present invention, before the embodiment of the present invention is specifically described, a method for determining the size of the transport block in LTE, which is mentioned in the background art, is described.
In LTE, the number of bits to be transmitted in each transport Block is mainly determined according to the MCS (Modulation and Coding Scheme) and the number of RBs (Resource blocks) allocated to a UE (User Equipment) by a base station, and the specifically allocated number of bits is according to tables 1 and 2.
For example, assume that the base station allocates MCS 20 and 2 RBs to the UE according to the fed-back channel quality and the size of the traffic to be transmitted in the downlink. TBS index was obtained as 18 according to Table 1.
TABLE 1
Then again according to Table 2, according to ITBSAnd the number of occupied RBs NPRBThe number of bits transmitted for the transport block may be queried. Such as ITBS＝18，NPRBA transport block size of 2 corresponds to 776 bits.
TABLE 2
Since the transport block size is determined by the number of RBs in LTE, it is no longer applicable to mobile communication systems that introduce a symbol-level scheduling period, such as LTE-a Pro system or 5GNR system. To solve the problem, embodiments of the present invention provide a new method for determining a transport block size, so as to be suitable for a mobile communication system that introduces a symbol-level scheduling period.
The technical solutions in the embodiments of the present invention are clearly and completely described below by taking the 5G NR system as an example and combining with the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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.
As shown in fig. 1, in the system transmission of 5G NR, one or several symbols are allowed as the minimum scheduling period, and the length of the symbol may have various specifications.
Referring to fig. 2, fig. 2 is a flowchart of a method for determining a transport block size according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:
The method for determining the size of the transport block according to the embodiment of the present invention may be applied to communication devices (including but not limited to a base station or a mobile communication terminal) in a communication system that achieves a symbol-level scheduling period, such as a 5G NR system.
The embodiment of the invention uses one frequency domain resource block NPRBAnd time domain symbol NsymbolAs a minimum time-frequency resource unit, the communication device may be based onThe number of occupied valid time and frequency resource units determines the number of bits of data transmitted by the transport block (i.e., the transport block size).
In this step, the communication device may determine a first transport block size index ITBS. Here, the transport block size refers to the number of bits of data transmission carried by the transport block. In the embodiment of the invention, the first transmission block size index ITBSCan be determined according to the mode I in the LTE systemTBSThe determination method of (1) is the same, that is, the first transport block size index may be determined through table 1, but may also be determined through other methods, which is not limited in the specific embodiment of the present invention.
In this step, the communication device may determine a first amount of physical transmission resources. The unit of the number of physical transmission resources is the product of a time domain symbol and a frequency domain resource block, which is different from the unit of physical transmission resources for calculating the size of a transmission block in the LTE system: frequency domain resource blocks.
In this embodiment of the present invention, the first physical transmission resource amount may be a product of a time domain symbol amount occupied by a physical time-frequency transmission resource block allocated for data transmission and a frequency domain resource block amount.
In this step, the communication device may determine, according to a mapping relationship between the transport block size index, the number of physical transmission resources, and the transport block size, the first transport block size index determined in step 201 and the transport block size corresponding to the first number of physical transmission resources determined in step 202 according to the mapping relationship.
As one way, the mapping relationship may be a mapping relationship table used to record the transport block size index, the number of physical transmission resources, and the transport block size. Table 3 shows a form of a mapping relationship table. For ease of understanding and explanation, the following description specifically describes the embodiments of the present invention from the perspective of a mapping table.
Of course, the mapping relationship is not only expressed in a table form, but also may be in other forms capable of reflecting the mapping relationship, and the embodiment of the present invention is not particularly limited.
TABLE 3
As shown in FIG. 2-1, assume NPRB＝10，NsymbolThen the number of occupied smallest time-frequency resource units is NPRB×Nsymbol30. If the first transport block size index ITBSLook up (I) according to table 3 when it is 5TBSThe number of physical transmission resources) — (5, 30) corresponds to a transport block having a size of 224 bits.
In the embodiment of the invention, the physical transmission resources are described in a time domain by taking symbols as units, and then the size of the transmission block is determined by the size index of the transmission block and the number of the physical transmission resources, so that the method can adapt to a more flexible and accurate time domain scheduling period in a 5G NR system, more accurately determine the size of the transmission block and realize more accurate utilization of the physical resources
In an embodiment of the present invention, the number of physical transmission resources recorded in the mapping relationship table may include all possible numbers of physical transmission resources, or may be, as shown in table 3, only a part of all possible numbers of physical transmission resources is recorded, which may reduce the complexity of the mapping relationship table.
However, when the mapping relation table only records a part of all possible physical transmission resource quantities, there may be a case that the first physical transmission resource quantity determined in step 202 cannot be found from the mapping relation table. In order to ensure that the size of the transport block is correctly calculated, as an optional specific implementation manner, the number closest to the first number of physical transmission resources recorded in the mapping relation table may be selected as a target number of physical transmission resources to determine the size of the transport block, or a minimum value of the number of physical transmission resources greater than the first number of physical transmission resources may be selected as the target number of physical transmission resources, or a maximum value of the number of physical transmission resources less than the first number of physical transmission resources may be selected as the target number of physical transmission resources, and the size of the transport block may be determined by using the selected target number of physical transmission resources.
These are explained below.
The determining, according to a mapping relationship between a transport block size index, the number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first physical transmission resource number may specifically include:
when the mapping relation table does not include the first physical transmission resource quantity, selecting the maximum value of the physical transmission resource quantity smaller than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation table as a target physical transmission resource quantity; determining the transport block size using the selected target number of physical transmission resources.
In this embodiment, if table 3 does not contain the corresponding number of time-frequency resource units, the corresponding transport block size is looked up based on the largest number of valid time-frequency resource units in table 3 that is smaller than or equal to the required number of valid time-frequency resource units.
As shown in FIGS. 2-2, assume NPRB＝6，NsymbolThen the number of occupied smallest time-frequency resource units is NPRB×NsymbolThe number of time-frequency resources closest to 24 and less than 24 in table 3 is 20. If the first transport block size index ITBSLook up (I) according to table 3, 10TBSNumber of physical transmission resources) — (10, 20) corresponds to a transport block of 328 bits in size.
This method can ensure smooth data transmission, and is described below with reference to the above example.
According to the mapping relation table, when ITBSWhen the number of the time frequency resources is 20, the size of the corresponding transmission block is 328 bits, and the number of the actually allocated time frequency resources is 24, which is greater than 20 corresponding to 328 bits in the table, so that the 328 bits are selected to ensure smooth data transmission.
As another optional specific implementation manner, the determining, according to a mapping relationship between a transport block size index, the number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first number of physical transmission resources may specifically include:
when the mapping relation table does not include the first physical transmission resource quantity, selecting the minimum value of the physical transmission resource quantity larger than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation table as a target physical transmission resource quantity, and determining the size of the transmission block by using the selected target physical transmission resource quantity.
In this embodiment, if table 3 does not contain the corresponding number of time frequency resource units, the corresponding transport block size is looked up based on the smallest number of valid time frequency resource units in table 3 that is greater than or equal to the required number of valid time frequency resource units.
As shown in FIGS. 2-2, assume NPRB＝6，NsymbolThen the number of occupied smallest time-frequency resource units is NPRB×NsymbolThe number of time-frequency resources closest to 24 and greater than 24 in table 3 is 30. If the first transport block size index ITBSLook up (I) according to table 3, 10TBSNumber of physical transmission resources) — (10, 30) the size of the corresponding transmission block is 504 bits.
As described above, in the embodiment of the present invention, the first amount of physical transmission resources may be a product of the amount of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the amount of frequency domain resource blocks. However, from the resource perspective, in the 5G NR system, the allocated physical time-frequency transmission resource block for data transmission may be occupied by a pilot or other control overhead, and at this time, the actually available physical time-frequency transmission resource block is not consistent with the physical time-frequency transmission resource block allocated by the system.
In this case, in order to improve the accuracy of the determined size of the transport block, in a specific embodiment of the present invention, the number of the first physical transmission resources may be: and in the allocated physical time-frequency transmission resource blocks for data transmission, the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks.
As for this alternative embodiment, at least the following two specific embodiments are possible.
As a specific embodiment, assume N is shown in FIGS. 2-3PRB＝6，NsymbolThen the number of occupied smallest time-frequency resource units is NPRB×NsymbolThe minimum number of time-frequency resources with pilots is 6 (the shaded part is the pilots) 24, so the effective unoccupied minimum number of time-frequency resource units is 18.
The number of time-frequency resources closest to 18 and less than 18 in table 3 is 10. If the first transport block size index ITBSLook up (I) according to table 3, 10TBSThe number of physical transmission resources) — the size of a transmission block corresponding to (10, 10) is 144 bits.
As another specific embodiment, assume N is shown in FIGS. 2-4PRB＝6，NsymbolThen the number of occupied smallest time-frequency resource units is NPRB×Nsymbol24, the number of occupied time-frequency resources is 6 (the shaded part in the figure is the occupied part), so the effective minimum number of unoccupied time-frequency resource units is 18.
The number of time-frequency resources closest to 18 and greater than 18 in table 3 is 20. If the first transport block size index ITBSLook up (I) according to table 3, 10TBSNumber of physical transmission resources) — (10, 20) corresponds to a transport block of 328 bits in size.
In the above embodiment, determining the transport block size based on the actually available physical time-frequency transmission resource block has the following advantages:
1. the size of the transmission block is determined based on the real available physical time-frequency transmission resource block, so that the determined size of the transmission block is more accurate;
2. determining the transport block size based on the real available physical time-frequency transmission resource blocks can support flexible pilot and/or control overhead design.
As shown in table 3, in the embodiment of the present invention, the mapping table may record only a part of all possible physical transmission resource quantities, so as to reduce the complexity of the mapping table. Wherein the portion of the number of physical transmission resources may be uniformly selected from the all possible numbers of physical transmission resources, but may also be non-uniform, that is:
the physical transmission resource quantities recorded by the mapping relation table are arranged from small to large, and the difference values of the adjacent physical transmission resource quantities are the same; or
The physical transmission resource quantity recorded by the mapping relation table is divided into at least two sets according to the sequence from small to large, wherein in each set, the difference value of the adjacent physical transmission resource quantity is the same, and the difference value of the adjacent physical transmission resource quantity of different sets is different.
The number of sets may be selected as desired and will not be described in detail here.
When the difference in the number of adjacent physical transmission resources of different sets is different, it may be that the difference in the number of adjacent physical transmission resources of a subsequent set is greater than the difference in the number of adjacent physical transmission resources of a previous set.
The reason for the above arrangement is explained as follows.
From the perspective of determining the size of the transmission block, when the mapping relation table records only a part of all possible physical transmission resource quantities, at this time, if the first physical transmission resource quantity determined in step 202 cannot be found from the mapping relation table, only a certain relatively close physical transmission resource quantity can be selected from the mapping relation table to determine the size of the transmission block.
Therefore, the smaller the difference between the selected one of the relatively close physical transmission resource quantities from the mapping relation table and the first physical transmission resource quantity determined in step 202 is, the more accurate the determined transport block size is.
Therefore, when the number of the physical transmission resources is small, a small physical transmission resource number interval should be set to improve the accuracy of the size of the transmission block, and when the number of the physical transmission resources is large, the difference between the numbers of the adjacent physical transmission resources may be larger, thereby reducing the complexity of the mapping table while ensuring the accuracy of the size of the transmission block.
As shown in table 4, it can be seen that the number of physical transmission resources is divided into at least three sets, where the first set includes physical transmission resource numbers with numerical values of 5, 10, 15, and the difference between adjacent physical transmission resource numbers is 5; the second set comprises the physical transmission resource quantities with the values of 510, 520 and the like, and the difference value of the adjacent physical transmission resource quantities is 10; the third set comprises physical transmission resource quantity with the values of 1500, 1540 and the like, and the difference value of the adjacent physical transmission resource quantity is 40; and so on.
It should be noted that table 4 is only an example, and the number of physical transmission resources recorded by the mapping relation table may also be partitioned in other ways.
TABLE 4
In the embodiment of the present invention, the communication device may be a base station or a mobile communication terminal. Among them, the mobile communication terminal may include but is not limited to: a Computer (Computer), a Mobile phone, a Tablet Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID) or a Wearable Device (Wearable Device).
The method for determining the size of the transmission block determines the size index of a first transmission block; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block. The embodiment of the invention determines the size of the transmission block by reflecting the physical transmission resource quantity of the time domain symbol scheduling period and by the transmission block size index and the physical transmission resource quantity, and can be suitable for a more flexible and accurate mobile communication system of the time domain scheduling period, thereby more accurately determining the size of the transmission block and realizing more accurate utilization of the physical resource. The method for determining the size of the transmission block has low complexity and can effectively improve the efficiency of data transmission.
Referring to fig. 3, fig. 3 is a structural diagram of a communication device according to an embodiment of the present invention, and as shown in fig. 3, the communication device 300 includes a first determining module 301, a second determining module 302, and a third determining module 303, where the first determining module 301 and the second determining module 302 are both connected to the third determining module 502.
A first determining module 301, configured to determine a first transport block size index;
a second determining module 302, configured to determine the first amount of physical transmission resources;
a third determining module 303, configured to determine, according to a mapping relationship between a transport block size index, a number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first number of physical transmission resources;
wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
Optionally, the number of the first physical transmission resources is:
the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or
And in the allocated physical time-frequency transmission resource blocks for data transmission, the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks.
Optionally, as shown in fig. 4, the third determining module 303 includes:
a selecting submodule 3031, configured to select, when the first physical transmission resource quantity is not included in the mapping relationship, a minimum value of the physical transmission resource quantity greater than the first physical transmission resource quantity or a maximum value of the physical transmission resource quantity less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relationship as a target physical transmission resource quantity;
a determining submodule 3032, configured to determine the transport block size by using the selected target number of physical transmission resources.
Optionally, the number of physical transmission resources recorded in the mapping relationship is divided into at least two sets according to a descending order, where in each set, a difference between the numbers of adjacent physical transmission resources is the same, and a difference between the numbers of adjacent physical transmission resources in different sets is different.
Optionally, the difference between the number of adjacent physical transmission resources of the subsequent set is greater than the difference between the number of adjacent physical transmission resources of the previous set.
The communication device 300 in the embodiment of the present invention may be a base station or a mobile communication terminal, which is capable of implementing each process implemented by the communication device in the method embodiment shown in fig. 2, and is not described herein again to avoid repetition.
The communication device 300 of the embodiment of the present invention determines the size index of the first transport block; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block. The embodiment of the invention determines the size of the transmission block by reflecting the physical transmission resource quantity of the time domain symbol scheduling period and by the transmission block size index and the physical transmission resource quantity, and can be suitable for a more flexible and accurate mobile communication system of the time domain scheduling period, thereby more accurately determining the size of the transmission block and realizing more accurate utilization of the physical resource. The communication equipment of the embodiment of the invention has lower complexity of the method for determining the size of the transmission block and can effectively improve the efficiency of data transmission.
The embodiment of the invention also provides communication equipment, which comprises a memory, a processor and a program for determining the size of the transmission block, wherein the program is stored on the memory and can run on the processor; the processor implements the method for determining the size of the transmission block when executing the program for determining the size of the transmission block, and can achieve the same technical effect, and the method is not described herein again to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a program for determining a size of a transmission block is stored, and when the program for determining a size of a transmission block is executed by a processor, the steps in the method for determining a size of a transmission block are implemented, and the same technical effects can be achieved. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Referring to fig. 5, fig. 5 is a third structural diagram of a communication device provided in the implementation of the present invention, and as shown in fig. 5, the communication device 500 includes: at least one processor 501, memory 502, at least one network interface 504, and a user interface 503. The various components in the communication device 500 are coupled together by a bus system 505. It is understood that the bus system 505 is used to enable connection communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 505 in FIG. 5.
The user interface 503 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 502 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 502 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system 5021 and application programs 5022.
The operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 5022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. The program for implementing the method according to the embodiment of the present invention may be included in the application program 5022.
In this embodiment of the present invention, the communication device 500 further includes: a program of a method for determining a transport block size stored in the memory 502 and operable on the processor 501, in particular, a program of a method for determining a transport block size in the application 5022, which when executed by the processor 501, implements the following steps: determining a first transport block size index; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The Processor 501 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer readable storage medium has stored thereon a program for determining a transport block size, which when executed by the processor 501, implements the steps of the above-described transport block size determining method embodiments.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Optionally, the number of the first physical transmission resources is: the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks in the allocated physical time-frequency transmission resource blocks for data transmission.
Optionally, when executed by the processor 501, the method for determining the size of the transport block may further implement the following steps: when the first physical transmission resource quantity is not included in the mapping relation, selecting the minimum value of the physical transmission resource quantity greater than the first physical transmission resource quantity or the maximum value of the physical transmission resource quantity less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation table as a target physical transmission resource quantity; determining the transport block size using the selected target number of physical transmission resources.
Optionally, the number of physical transmission resources recorded in the mapping relationship is divided into at least two sets according to a descending order, where in each set, a difference between the numbers of adjacent physical transmission resources is the same, and a difference between the numbers of adjacent physical transmission resources in different sets is different.
Optionally, the difference between the number of adjacent physical transmission resources of the subsequent set is greater than the difference between the number of adjacent physical transmission resources of the previous set.
The communication device 500 can implement the processes implemented by the communication device in the foregoing embodiments, and in order to avoid repetition, the details are not described here.
The communication device 500 of the embodiment of the present invention determines the first transport block size index; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block. The embodiment of the invention determines the size of the transmission block by reflecting the physical transmission resource quantity of the time domain symbol scheduling period and by the transmission block size index and the physical transmission resource quantity, and can be suitable for a more flexible and accurate mobile communication system of the time domain scheduling period, thereby more accurately determining the size of the transmission block and realizing more accurate utilization of the physical resource. The communication equipment of the embodiment of the invention has lower complexity of the method for determining the size of the transmission block and can effectively improve the efficiency of data transmission.
Referring to fig. 6, fig. 6 is a fourth structural diagram of a communication device according to an embodiment of the present invention, and as shown in fig. 6, the communication device 600 includes a Radio Frequency (RF) circuit 610, a memory 620, an input unit 630, a display unit 640, a processor 650, an audio circuit 660, a communication module 670, and a power supply 680.
The input unit 630 may be used, among other things, to receive numeric or character information input by a user and to generate signal inputs related to user settings and function control of the communication device 600. Specifically, in the embodiment of the present invention, the input unit 630 may include a touch panel 631. The touch panel 631, also referred to as a touch screen, may collect touch operations of a user (e.g., operations of the user on the touch panel 631 by using a finger, a stylus, or any other suitable object or accessory) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 631 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 650, and can receive and execute commands sent from the processor 650. In addition, the touch panel 631 may be implemented using various types, such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 631, the input unit 630 may also include other input devices 632, and the other input devices 632 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
Among other things, the display unit 640 may be used to display information input by or provided to the user and various menu interfaces of the communication apparatus 600. The display unit 640 may include a display panel 641, and optionally, the display panel 641 may be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
It should be noted that the touch panel 631 may cover the display panel 641 to form a touch display screen, and when the touch display screen detects a touch operation thereon or nearby, the touch display screen is transmitted to the processor 650 to determine the type of the touch event, and then the processor 650 provides a corresponding visual output on the touch display screen according to the type of the touch event.
The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.
The processor 650 is a control center of the communication device 600, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the communication device 600 and processes data by operating or executing software programs and/or modules stored in the first memory 621 and calling data stored in the second memory 622, thereby performing overall monitoring of the communication device 600. Optionally, the processor 650 may include one or more processing units.
In this embodiment of the present invention, the communication device 600 further includes: a program of a method for determining a transport block size stored in the memory 621 and operable on the processor 650, specifically, a program of a method for determining a transport block size in an application program, which when executed by the processor 650, implements the steps of: determining a first transport block size index; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
Optionally, the number of the first physical transmission resources is: the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks in the allocated physical time-frequency transmission resource blocks for data transmission.
Alternatively, when executed by the processor 650, the program for determining the size of the transport block may further implement the following steps: when the mapping relation table does not include the first physical transmission resource quantity, selecting the minimum value of the physical transmission resource quantity greater than the first physical transmission resource quantity or the maximum value of the physical transmission resource quantity less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation table as a target physical transmission resource quantity; determining the transport block size using the selected target number of physical transmission resources.
Optionally, the number of physical transmission resources recorded in the mapping relationship is divided into at least two sets according to a descending order, where in each set, a difference between the numbers of adjacent physical transmission resources is the same, and a difference between the numbers of adjacent physical transmission resources in different sets is different.
Optionally, the difference between the number of adjacent physical transmission resources of the subsequent set is greater than the difference between the number of adjacent physical transmission resources of the previous set.
The communication device 600 can implement the processes implemented by the communication device in the foregoing embodiments, and in order to avoid repetition, the details are not described here.
The communication device 600 of the embodiment of the present invention determines the size index of the first transport block; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block. The embodiment of the invention determines the size of the transmission block by reflecting the physical transmission resource quantity of the time domain symbol scheduling period and by the transmission block size index and the physical transmission resource quantity, and can be suitable for a more flexible and accurate mobile communication system of the time domain scheduling period, thereby more accurately determining the size of the transmission block and realizing more accurate utilization of the physical resource. The communication equipment of the embodiment of the invention has lower complexity of the method for determining the size of the transmission block and can effectively improve the efficiency of data transmission.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. 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 can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the communication device and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed communication device and method may be implemented in other ways. For example, the above-described communication device embodiments are merely illustrative, and for example, the division of the units is only one logical functional 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 of communication devices or units through some interfaces, and may be in an electrical, mechanical or other form.
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 functions, if implemented in the form of software functional units 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 may be embodied in the form of a software product, which is stored in a storage medium and includes 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: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The computer-readable storage medium has stored thereon a program for a transport block size determination method, which when executed by a processor, implements: determining a first transport block size index; determining a first physical transmission resource quantity; determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size; wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block.
Optionally, the number of the first physical transmission resources is: the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks in the allocated physical time-frequency transmission resource blocks for data transmission.
Optionally, when executed by the processor, the method for determining the size of the transport block may further implement the following steps: when the first physical transmission resource quantity is not included in the mapping relation, selecting the minimum value of the physical transmission resource quantity greater than the first physical transmission resource quantity or the maximum value of the physical transmission resource quantity less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation table as a target physical transmission resource quantity; determining the transport block size using the selected target number of physical transmission resources.
Optionally, the number of physical transmission resources recorded in the mapping relationship is divided into at least two sets according to a descending order, where in each set, a difference between the numbers of adjacent physical transmission resources is the same, and a difference between the numbers of adjacent physical transmission resources in different sets is different.
Optionally, the difference between the number of adjacent physical transmission resources of the subsequent set is greater than the difference between the number of adjacent physical transmission resources of the previous set.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for determining a transport block size, comprising:
determining a first transport block size index;
determining a first physical transmission resource quantity;
determining the size of a transmission block corresponding to the first transmission block size index and the first physical transmission resource quantity according to the mapping relation among the transmission block size index, the physical transmission resource quantity and the transmission block size;
wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block;
the physical transmission resource quantity recorded by the mapping relation is divided into at least two sets according to the sequence from small to large, wherein in each set, the difference value of the adjacent physical transmission resource quantity is the same, and the difference value of the adjacent physical transmission resource quantity of different sets is different.
2. The method according to claim 1, wherein the first number of physical transmission resources is:
the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or
And in the allocated physical time-frequency transmission resource blocks for data transmission, the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks.
3. The method according to claim 1, wherein the determining, according to a mapping relationship among a transport block size index, a number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first number of physical transmission resources specifically includes:
when the first physical transmission resource quantity is not included in the mapping relation, selecting the minimum value of the physical transmission resource quantity greater than the first physical transmission resource quantity or the maximum value of the physical transmission resource quantity less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relation as a target physical transmission resource quantity;
determining the transport block size using the selected target number of physical transmission resources.
4. The method of claim 1, wherein the difference between the number of contiguous physical transmission resources of a subsequent set is greater than the difference between the number of contiguous physical transmission resources of a previous set.
5. A communication device, comprising:
a first determining module for determining a first transport block size index;
a second determining module, configured to determine the first number of physical transmission resources;
a third determining module, configured to determine, according to a mapping relationship between a transport block size index, a number of physical transmission resources, and a transport block size, a transport block size corresponding to the first transport block size index and the first number of physical transmission resources;
wherein, the unit of the physical transmission resource is the product of a time domain symbol and a frequency domain resource block; the transport block size is the number of bits of data transmission carried by the transport block;
the physical transmission resource quantity recorded by the mapping relation is divided into at least two sets according to the sequence from small to large, wherein in each set, the difference value of the adjacent physical transmission resource quantity is the same, and the difference value of the adjacent physical transmission resource quantity of different sets is different.
6. The communications device of claim 5, wherein the first number of physical transmission resources is:
the product of the number of time domain symbols occupied by the allocated physical time-frequency transmission resource block for data transmission and the number of frequency domain resource blocks; or
And in the allocated physical time-frequency transmission resource blocks for data transmission, the product of the number of time domain symbols occupied by the unoccupied physical time-frequency transmission resource blocks and the number of frequency domain resource blocks.
7. The communications device of claim 5, wherein said third determining module comprises:
a selection submodule, configured to select, when the first physical transmission resource quantity is not included in the mapping relationship, a minimum value of physical transmission resource quantities greater than the first physical transmission resource quantity or a maximum value of physical transmission resource quantities less than the first physical transmission resource quantity from the physical transmission resource quantities recorded in the mapping relationship as a target physical transmission resource quantity;
a determining submodule for determining the transport block size using the selected target number of physical transmission resources.
8. The communications device of claim 5, wherein the difference in the number of contiguous physical transmission resources of a subsequent set is greater than the difference in the number of contiguous physical transmission resources of a previous set.
9. A communication device comprising a memory, a processor and a transport block size determination program stored on the memory and executable on the processor, the processor implementing the transport block size determination method according to any one of claims 1 to 4 when executing the transport block size determination program.
10. A computer-readable storage medium, on which a program for determining a transport block size is stored, which when executed by a processor implements the steps in the method for determining a transport block size according to any one of claims 1 to 4.
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| WO2020199044A1 (en) * | 2019-03-29 | 2020-10-08 | 华为技术有限公司 | Method and apparatus for determining tbs |
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