WO2018228212A1 - 一种传输块大小的确定方法和装置 - Google Patents

一种传输块大小的确定方法和装置 Download PDF

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Publication number
WO2018228212A1
WO2018228212A1 PCT/CN2018/089371 CN2018089371W WO2018228212A1 WO 2018228212 A1 WO2018228212 A1 WO 2018228212A1 CN 2018089371 W CN2018089371 W CN 2018089371W WO 2018228212 A1 WO2018228212 A1 WO 2018228212A1
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available
type
data
communication device
res
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PCT/CN2018/089371
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English (en)
French (fr)
Inventor
王婷
李元杰
唐浩
唐臻飞
王轶
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华为技术有限公司
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Priority to JP2019567290A priority Critical patent/JP2020522947A/ja
Priority to EP18816736.5A priority patent/EP3606236B1/en
Publication of WO2018228212A1 publication Critical patent/WO2018228212A1/zh
Priority to US16/704,558 priority patent/US11166273B2/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a transport block size.
  • the Transport Block Size (TBS) is based on the Modulation and Coding Scheme (MCS) and the number of allocated Resource Blocks (RBs) to find the TBS. The form is determined.
  • MCS Modulation and Coding Scheme
  • RBs Resource Blocks
  • the scheduling of data in the fifth generation mobile communication technology (5G) New Radio (NR) system can be more flexible, such as indicating the specific starting position and ending position of the time domain during data scheduling.
  • the number of symbols that can be used in each time slot can be dynamically changed, and the number of available resource elements (Resource Element, RE) is different on different symbols; for the frequency domain, the number of REs available on different RBs can also be different.
  • RE resource Element
  • the method for determining the TBS in the LTE cannot flexibly support the case where the number of available REs on different RBs is different, the method for determining the TBS in the LTE does not satisfy the TBS determination requirement of the NR system.
  • the embodiment of the present application provides a method and a device for determining a transport block size, so as to accurately determine a transport block size and improve system performance when different RE numbers are available on different RBs.
  • a method of determining a transport block size is determined, the communication device determining a type of available resource element RE of a data schedule; the communication device determining a transport block size of the data according to a type of the available RE.
  • the communication device can accurately determine the transmission block size of the data according to the type of available REs scheduled by the data, which can meet the system requirements and improve system performance.
  • the communication device determines a type of available REs for data scheduling, including: the communication device determines a classification criterion of available REs, and determines a data schedule according to the classification criteria of the available REs a type of available RE, the classification criterion is determined according to a time domain of X1 symbol frequency domains as symbol features and/or RB features under Y1 RBs; or the classification criterion is X2 symbol frequencies according to a time domain The domain is determined by the symbol feature and/or the RBG feature under the Y2 resource block group RBG; or the classification criterion is that the time domain is X3 time slot frequency domain is the time slot feature under the Y3 resource block RB and/or Determined by the RB feature; or the classification criterion is determined according to a slot feature in the time domain of X4 slots in the frequency domain of Y4 RBGs and/or an RBG feature; or the classification criterion is an available RE
  • the symbol feature includes at least one of reference signal information existing in the symbol and a number of REs available in the symbol;
  • the RB feature includes reference signal information and RB existing in the RB At least one of the number of REs available;
  • the slot feature includes reference signal information present in the slot and at least one of a number of REs available in the slot and a number of symbols available in the slot;
  • the RBG feature includes The reference signal information existing in the RBG and at least one of the number of REs available in the RBG and the number of RBs available in the RBG.
  • the classification criteria can be flexibly designed according to the time-frequency characteristics of the design, and the types of available REs are further determined. Since the TBS values determined by different RE types are different, the TBS size of the data is accurately determined according to the types of available REs. .
  • the reference signal information includes: whether there is at least one of the reference signal, the number of antenna ports of the reference signal, and the number of REs occupied by the reference signal.
  • the reference signal information can adopt any combination of the above designs, when the reference signal information is used in the classification criterion, the diversity classification of available REs can be realized according to the reference signal information to meet different requirements.
  • the communication device determines a classification criterion of the available RE, including: the communication device determines a classification criterion of the predefined available RE or the receiving base station sends First signaling, the first signaling is used to indicate a classification criterion of the available RE; when the communication device is a base station, the communication device determines a classification criterion of an available RE, including: the communication device determines a pre- A classification criterion of the available available REs or the communication device configures the classification criteria of the available REs according to the service characteristics of the data scheduling.
  • the classification criterion can be determined in two ways, one is the direct specification of the protocol, which is relatively simple and straightforward, and does not require excessive interaction between the base station and the terminal, thereby saving signaling overhead;
  • the service characteristics of the data scheduling dynamically configure the classification criteria and inform the terminal that this method is more flexible and meets different business requirements.
  • the communication device determines, according to the classification criterion of the available RE, a type of available RE of the data scheduling, including: the communication device according to the classification criterion of the available RE, The time-frequency resource of the data scheduling determines the type of available REs for the data scheduling.
  • the communication device determines a type of available REs for data scheduling, including: the communication device determines a service type of data, and determines a type of data available RE according to the service type, where Different service types correspond to different types of available REs.
  • different classification criteria can be designed for different service types to differentiate the service types and determine the TBS size of the data.
  • the communications device determines a transport block size of the data according to the type of the available RE, including: the communications device determining the available RE according to the type of the available RE a table of transport block sizes corresponding to the type, determining a transport block size of the data based on the table of the transport block size; or the communication device according to the type of the available RE, and the type of the available RE and the transport block size a relationship, determining a transport block size of the data; or the communication device determining a scale factor corresponding to the type of the available RE, multiplying the scale factor by a preset value, to obtain a transport block size of the data,
  • the preset value is determined according to a preset transport block size table or is calculated according to a modulation mode, a code rate, a transmission layer number, and a first available RE number of the communication device, where the first available RE number is Defining or determining according to a time-frequency resource scheduled by the data; or the communication device determining a
  • a device for determining a transport block size including:
  • a first determining unit configured to determine a type of the available resource element RE of the data scheduling
  • a second determining unit configured to determine a transport block size of the data according to the type of the available RE.
  • the first determining unit when determining the type of the available RE of the data scheduling, is specifically configured to: determine a classification criterion of the available RE, and determine data according to the classification criterion of the available RE.
  • the classification criterion being determined according to a time domain of X1 symbol frequency domains as symbol features and/or RB features under Y1 RBs; or the classification criterion is X2 symbols according to a time domain
  • the frequency domain is determined by a symbol feature and/or an RBG feature under the Y2 resource block group RBG; or the classification criterion is a time slot feature of the Y3 resource block RB according to a time domain of X3 time slot frequency domains and/or Or the RB feature is determined; or the classification criterion is determined according to a slot feature in the time domain of X4 slots in the frequency domain of Y4 RBGs and/or an RBG feature; or the classification criterion is an available RE for data scheduling
  • the number of X1, X2, X3, X4, Y1, Y2, Y3 and Y4 is a positive integer.
  • the symbol feature includes at least one of reference signal information existing in the symbol and a number of REs available in the symbol;
  • the RB feature includes reference signal information and RB existing in the RB At least one of the available RE numbers;
  • the slot feature includes reference signal information present in the slot and at least one of a number of REs available in the slot and a number of symbols available in the slot;
  • the RBG feature including the RBG The reference signal information that exists and at least one of the number of REs available in the RBG and the number of RBs available in the RBG.
  • the reference signal information includes: whether there is at least one of the reference signal, the number of antenna ports of the reference signal, and the number of REs occupied by the reference signal.
  • the device when the device is a terminal, the device further includes a receiving unit, configured to receive first signaling sent by the base station, where the first signaling is used to indicate the available RE
  • the first determining unit is specifically configured to: determine a classification criterion of the predefined available RE; and when the device is a base station, the first determining unit is specifically configured to: determine a classification criterion of the predefined available RE Or, according to the service characteristics of the data scheduling, the classification criteria of the available REs are configured.
  • the first determining unit when determining the type of the available RE of the data scheduling according to the classification criterion of the available RE, is specifically used to: according to the classification criterion of the available RE, The time-frequency resource of the data scheduling determines the type of available RE of the data scheduling.
  • the first determining unit when determining the type of the available RE of the data scheduling, is specifically configured to: determine a service type to which the data scheduling belongs, and determine, according to the service type, that the data scheduling is available.
  • the type of RE in which different service types correspond to different types of available REs.
  • the second determining unit when determining the transport block size of the data according to the type of the available RE, is specifically configured to: determine the available RE according to the type of the available RE. a table of transport block sizes corresponding to the type, determining a transport block size of the data based on the table of the transport block size; or determining according to a type of the available RE, and a correspondence between a type of available REs and a transport block size a transmission block size of the data; or a scaling factor corresponding to the type of the available RE, multiplying the scaling factor by a preset value to obtain a transmission block size of the data, where the preset value is according to a preset
  • the table of the transport block size is determined or calculated according to the modulation mode, the code rate, the number of transmission layers, and the first available RE number of the device, where the first available RE number is predefined or scheduled according to data.
  • a communication device in a third aspect, is provided, the communication device being a terminal or a base station, the communication device having a function of implementing the behavior of the communication device in the example method of the first aspect above.
  • the functions can be implemented in hardware.
  • the communication device includes a memory for storing computer executable program code, a communication interface, and a processor coupled to the memory and the communication interface.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method of any one of the possible design communication devices of the first aspect or the first aspect described above.
  • a computer storage medium for storing computer software instructions for use in the communication device described above, comprising a program designed to perform the above aspects.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of the first aspect described above.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of another application scenario according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for determining a transport block size according to an embodiment of the present application
  • 4a to 4f are schematic diagrams showing classification of available REs in the embodiment of the present application.
  • 5a to 5c are schematic diagrams showing classification of available REs in an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the technical solution provided herein can be applied to a 5G NR system (hereinafter simply referred to as an NR system), and can also be used in a next generation mobile communication system or other similar mobile communication system.
  • a 5G NR system hereinafter simply referred to as an NR system
  • next generation mobile communication system or other similar mobile communication system.
  • a terminal is a device that provides voice and/or data connectivity to a user, and may include, for example, a handheld device having a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN.
  • the terminal may include an access point (AP), a user equipment (User Equipment, UE), a wireless terminal, a mobile terminal, a subscriber unit (Subscriber Unit), a subscriber station (Subscriber Station), a mobile station (Mobile Station), Mobile, Remote Station, Access Point (AP), Remote Terminal, Access Terminal, User Terminal, User Agent ), or User Equipment, etc.
  • a mobile phone or "cellular” phone
  • a computer with a mobile terminal a portable, pocket, handheld, computer built-in or in-vehicle mobile device, smart wearable device, and the like.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Smart Watches smart helmets, smart glasses, smart bracelets and other equipment.
  • a base station is a device in an access network that communicates with a wireless terminal over one or more sectors on an air interface.
  • the base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the terminal and the rest of the access network, wherein the remainder of the access network can include an IP network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may include an evolved base station (eNB or e-NodeB, evolutional Node B) in an LTE system or an evolved LTE system (LTE-A), or a small base station in an LTE system or an LTE-A system (micro/pico eNB), or may include a next generation node B (gNB) in the NR system, or a transmission point (TP), or a transmission and receiver point (transmission and receiver point, TRP), etc.
  • eNB evolved base station
  • LTE-A evolved LTE system
  • micro/pico eNB small base station in an LTE system or an LTE-A system
  • gNB next generation node B
  • TP transmission point
  • TRP transmission and receiver point
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • Multiple means two or more.
  • a plurality can also be understood as “at least two” in the embodiment of the present application.
  • the character "/” unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 is an application scenario of an embodiment of the present application.
  • FIG. 1 includes a terminal and a base station, where the terminal and the base station can perform information exchange, and the base station can transmit downlink data to the terminal, and the terminal can also receive downlink data transmitted by the base station.
  • the terminal can also transmit uplink data to the base station, and the base station can also receive uplink data transmitted by the terminal.
  • the method for determining the TBS in the present application may be a transport block size for the uplink data, or may be a transport block size for the downlink data, which is not limited herein.
  • the embodiment of the present application may also be used in a joint transmission scenario, for example, in the context of existing Coordinated Multiple Points Transmission (CoMP) multipoint transmission, Multiple-Input Multiple-Output (MIMO) technology (including diversity technology to improve transmission reliability and multi-stream technology to improve transmission data rate) combined with cooperative multi-point transmission to form a distributed multi-antenna system, To better serve users.
  • CoMP Coordinated Multiple Points Transmission
  • MIMO Multiple-Input Multiple-Output
  • FIG. 2 is a schematic diagram of an application scenario for coordinated transmission of multiple antenna sites.
  • the embodiments of the present application are applicable to scenarios of a homogeneous network and a heterogeneous network, and are also limited to a transmission point, and may be a cooperation between a macro base station and a macro base station, a micro base station and a micro base station, or a macro base station and a micro base station.
  • Multi-point transmission and is applicable to Frequency Division Dual (FDD) / Time Division Duplexing (TDD) / Flexible Duplex (D-TDD) systems .
  • FDD Frequency Division Dual
  • TDD Time Division Duplexing
  • D-TDD Flexible Duplex
  • the embodiments of the present application can be applied to low frequency scenes (less than or equal to 6 GHz), and also to high frequency scenes (such as greater than 6 GHz).
  • the terminal and the base station can no longer determine the TBS of the data scheduling according to the method in the LTE, and thus cannot implement normal data scheduling.
  • the technical solution of the embodiment of the present application is provided, which will be described below with reference to the accompanying drawings.
  • the technical solution provided by the embodiment of the present application is applied to the application scenario shown in FIG. 1 or FIG. 2 as an example. If the technical solution provided by the embodiment of the present application is applied to the application scenario shown in FIG. 2, the embodiment of the present application may be considered to be described from the perspective of any one of the base stations.
  • FIG. 3 is a schematic flowchart diagram of a method for determining a transport block size according to an embodiment of the present application.
  • the process may be implemented by hardware, software programming, or a combination of hardware and software.
  • the communication device may be configured to perform the process as shown in FIG. 3, and the communication device may be a function module of the terminal or the base station, the terminal or the base station to perform the determination of the transport block size provided by the embodiment of the present application.
  • Hardware, software programming, and a combination of hardware and software are implemented.
  • the hardware can include one or more signal processing and/or application specific integrated circuits.
  • the process specifically includes the following processes:
  • Step 30 The communication device determines the type of available REs for the data schedule.
  • the available RE in the embodiment of the present application refers to an RE that is used to carry data, and also refers to an RE that does not carry an RS.
  • the unavailable RE refers to an RE that is not used to carry data, and may also refer to an RE that carries data. RE.
  • the communications device determines the type of available REs for data scheduling
  • the following two implementation manners may be included:
  • the communication device determines a classification criterion of an available RE, and determines, according to the classification criterion of the available RE, a type of available REs for data scheduling, where the classification criterion is based on a time domain of X1 symbol frequency domains.
  • the classification criterion is the number of available REs for data scheduling, where X1, X2, X3, X4, Y1, Y2, Y3, and Y4 are positive integers .
  • At least one of the optional X1, X2, X3, X4, Y1, Y2, Y3 and Y4 may be predefined, or X1, X2, X3, X4, Y1, Y2, Y3 and Y4 At least one value may be that the base station notifies the terminal by using a signaling, which is not limited herein.
  • the signaling may be high layer signaling or physical layer signaling.
  • the RBG may be a basic unit of resource allocation, and an RBG may include one or more RBs.
  • the size of the specific RBG may be predefined or may be signaled. Specifically, Not limited.
  • the size of the RBG may be dynamic or semi-statically variable.
  • the size of the RBG may be system level, bandwidth partial level, user level, or user group level, and is not limited herein.
  • the size of the RBG may be different for different channels, or different services may use different RBGs, which are not limited herein.
  • the resource corresponding to the classification criterion may be regarded as a reference resource unit.
  • the classification criterion is determined according to the symbol feature and/or the RB feature in the Y1 symbol frequency domain of the Y1 RBs in the time domain, and the time domain is the X1 symbol frequency domain.
  • the resource corresponding to the Y1 RBs is the reference resource unit.
  • Other classification criteria are deduced by analogy, and are not limited herein.
  • the communication device determines a classification criterion of the available RE, which may be determined according to a resource allocation method or determined according to a data scheduling method.
  • different resource allocation methods or data scheduling methods may correspond to different available RE classification criteria.
  • the resource allocation method may be a resource allocation type 0 or a resource allocation type 1 or a resource allocation type 2, and may be a resource allocation type in the prior art, or may be another resource allocation type, or may be an RB-based resource classification type or It is based on the type of resource allocation of RBG.
  • the data scheduling method may be a slot-based scheduling method or a mini-slot based scheduling method or a slot aggregation based scheduling method or a mini-slot aggregation based scheduling method, or based on slot and mini-slot aggregation. Scheduling method.
  • the communication device determines a classification criterion of the available RE, including: the communication device determines a classification criterion of the predefined available RE or receives the first signaling sent by the base station, where the first The classification criteria for the available REs are included in the order.
  • the communication device determines a classification criterion of available REs, including: the communication device determines a classification criterion of a predefined available RE or the communication device configures a classification of available REs according to a service feature of the data scheduling Guidelines.
  • the communication device determines the type of the available RE of the data scheduling according to the classification criterion of the available RE
  • the time-frequency resource of the data scheduling needs to be determined, according to the classification criterion of the available RE, and the time when the data is scheduled. Frequency resource, determining the type of RE available for data scheduling.
  • the available RE is classified into 2 classes by using the classification criterion, and the DMRS is first on the symbol. Class; there is no DMRS on the symbol as the second class.
  • the time-frequency resource of the data scheduling is three consecutive symbols and five RBs.
  • the DMRS does not exist in the three symbols.
  • the communication device acquires the corresponding TBS table or the pre-form of the second type. Set the TBS value, use the TBS table to determine the corresponding TBS value, and multiply by 3 to get the TBS size of the data scheduled this time.
  • the available RE is classified into 4 categories, 1 symbol and 1 RBG.
  • the RBs are all in the first category; the RBs in one symbol and one RBG do not exist in the second category; one of the RBGs in one symbol does not exist in the third category; There are two RBs on one symbol and there is no RB on the fourth category.
  • the time-frequency resource of the data scheduling is three consecutive symbols and five RBGs, and the 15 time-frequency blocks are determined for which Type, and the number of each type.
  • the communication device acquires a TBS table corresponding to each type or a preset TBS value, and uses the TBS table to determine a corresponding TBS value, and multiplies the corresponding TBS value.
  • the number gets the TBS size of the data that is scheduled this time.
  • the symbol feature includes at least one of reference signal information existing in the symbol and a number of REs available in the symbol;
  • the RB feature includes at least one of reference signal information existing in the RB and a number of REs available in the RB;
  • the slot feature includes at least one of reference signal information existing in the slot and the number of REs available in the slot and the number of symbols available in the slot;
  • the RBG feature includes reference signal information and RBG existing in the RBG At least one of the number of available REs and the number of RBs available within the RBG.
  • the reference signal information includes: whether there is at least one of the reference signal, the number of antenna ports of the reference signal, and the number of REs occupied by the reference signal.
  • the reference signal includes a Demodulation Reference Signal (DMRS), a Channel State Information Reference Signal (CSI-RS), and a Phase Tracking Reference Signal (Phase-tracking RS, PT-RS). . Track at least one of the reference signals (Tracking RS, TRS).
  • DMRS Demodulation Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • Phase-tracking RS Phase Tracking Reference Signal
  • TRS Track at least one of the reference signals
  • the communication device determines the type of the available RE, which may be determined according to a resource allocation method or determined according to a data scheduling method.
  • different resource allocation methods or data scheduling methods may correspond to different types of available REs.
  • the resource allocation method may be a resource allocation type 0 or a resource allocation type 1 or a resource allocation type 2, and may be a resource allocation type in the prior art, or may be another resource allocation type, or may be an RB-based resource classification type or It is based on the type of resource allocation of RBG.
  • the data scheduling method may be a slot-based scheduling method or a mini-slot based scheduling method or a slot aggregation based scheduling method or a mini-slot aggregation based scheduling method, or based on slot and mini-slot aggregation. Scheduling method.
  • the second implementation manner is as follows: the communication device determines a service type of the data scheduling, and determines, according to the service type, a type of available REs of the data scheduling, where different service types correspond to different types of available REs.
  • Step 31 The communication device determines a transport block size of the data according to the type of the available RE.
  • the communications device determines a transport block size of the data according to the type of the available RE, and includes the following four implementation manners:
  • Manner 1 The communication device determines, according to the type of the available RE, a table of transport block sizes corresponding to the type of available REs, and determines a transport block size of the data based on a table of the transport block size.
  • Manner 2 The communication device determines a transport block size of the data according to a type of the available RE and a correspondence between a type of available RE and a transport block size.
  • Manner 3 The communication device determines a scale factor corresponding to the type of the available RE, and multiplies the scale factor by a preset value to obtain a transport block size of the data, where the preset value is according to a preset transmission.
  • the table of block sizes is determined or calculated according to a modulation mode, a code rate, a number of transmission layers, and a first available RE number of the communication device, wherein the first available RE number is predefined or scheduled according to data Time-frequency resources are determined.
  • the value of the TBS may be calculated by using a modulation mode, a code rate, a number of transmission layers, and a first available RE number, and the specific process is as follows:
  • N sf is the number of reference resource units corresponding to the classification criteria;
  • the number of available REs corresponding to the reference resource unit is either a preset RE value, that is, the first available RE number;
  • v is the number of transmission layers; and
  • R is the code rate.
  • Manner 4 The communication device determines a second available RE number corresponding to the type of the available RE, and uses the modulation mode, the code rate, the number of transmission layers, and the second available RE number of the communication device to calculate the data transmission. Block size.
  • the calculation formula is similar to the above formula 1, and the first available RE number is replaced with the second available RE number.
  • the value of the TBS may be determined by using a TBS table, and the specific process is as follows:
  • Table 1 and Table 2 give specific examples of the TBS table.
  • the communication device can determine the modulation mode and the TBS index according to the MCS index, and then look up the table according to the TBS index and the number of allocated RBs N RB 2 . , you can determine the value of TBS.
  • the classification criterion used by the base station and the terminal may be pre-defined by the protocol, or may be dynamically configured by the base station, and the terminal is notified by signaling, and the specific signaling may be high layer signaling or physical layer signaling, etc. Not limited in the middle.
  • Classification criterion 1 The type of available RE is determined according to the symbol feature and/or RB feature in the time domain of 1 symbol frequency domain for 1 RB.
  • Case 1 The type of available RE is determined according to the DMRS information in the time domain of 1 symbol frequency domain and 1 RB.
  • the available REs are classified to obtain the types of available REs, and are classified into two types: DMRS and no DMRS.
  • the available REs are classified to obtain the classification criteria of the available REs.
  • the number of antenna ports of the DMRS is 0
  • the number of antenna ports is 1-2
  • the number of antenna ports of the DMRS is 1-2.
  • the number of antenna ports of the DMRS is 3-4, which is the third category
  • the number of antenna ports of the DMRS is 5-8, which is the fourth category, and so on.
  • the available REs are classified to obtain the types of available REs, for example, the DMRS occupies 0 REs as the first type, the DMRS occupies 2 REs as the second category, and the DMRS occupies 4 REs as the third type. Class, DMRS occupies 8 REs for the fourth category, and so on.
  • the number of antenna ports of the DMRS and the number of occupied REs are classified.
  • the number of antenna ports of the DMRS is 0, and the number of antennas occupying 0 REs is the first type; the number of antenna ports of the DMRS is 1 to 2, and is occupied.
  • the number of antenna ports of the two REs or DMRSs is 3 to 4 and the number of antennas occupying 2 REs is the second type; the number of antenna ports of the DMRS is 1 to 2, and the number of antenna ports occupying 4 REs or DMRSs is 3 to 4 and occupy 4 REs, or the number of antenna ports of the DMRS is 5-8, and the number of antenna ports occupying 8 REs or DMRSs is 5-8, and the number of 16 REs is the third category, etc. .
  • FIGS. 4a to 4c show schematic diagrams of classifying available REs according to DMRS information on each symbol.
  • the data on each symbol can be classified into three categories by the REs occupied by the RE/DMRS.
  • the data on each symbol can be classified into four categories by the REs occupied by the RE/DMRS.
  • the data on each symbol can be classified into five categories by the REs occupied by the RE/DMRS.
  • the available RE/DMRS occupied by the total data can be 0, 3, 4, 6, 8, 9, 12, and the available REs can be classified into 3 or 4 types.
  • the specific one may be 0 for the first category, 3, 4, and 6 for the second category, 8, 9 for the third category, and 12 for the fourth category.
  • Case 2 Determine the type of available RE according to the CSI-RS/PTRS/TRS information in the time domain of 1 symbol frequency domain and 1 RB.
  • the CSI-RS/PTRS/TRS is similar to the case of the DMRS in Case 1. I will not go into details here.
  • FIG. 4d to FIG. 4f show schematic diagrams of classifying available REs according to CSI-RS information on each RB of each symbol.
  • DMRS and CSI-RS are the third type.
  • an RB the number of REs available on a symbol can be 0 to 12. Specifically, for example, if the available RE numbers are 0 to 4, the first category, the 5 to 8 are the second category, and the 9 to 12 are the third category.
  • both the information of the DMRS and the information of the CSI-RS/PTRS/TRS may be considered to jointly determine the type of available REs.
  • the TBS value under the type is obtained according to the determined type of available RE.
  • the terminal calculates the TBS
  • the number of symbols in the time domain for the classification criterion is multiplied by the number of RBs in the frequency domain for the classification criterion, and the TBS value under the type is multiplied to obtain the TBS size of the data scheduling.
  • ratios can be converted between different types, taking DMRS as an example:
  • the scale factor can be 1, the first type is 1, the second type is 1/2, and the third type is 0.
  • a first type of corresponding TBS table is defined, and a TBS table corresponding to the second type and the third type can be converted according to the scale factor, that is, the TBS table corresponding to the first type is multiplied by the scale factor of the second type. 1/2 obtains the corresponding TBS table of the second type; multiplies the corresponding TBS table of the first class by the scale factor 0 of the third class to obtain the TBS table corresponding to the third class.
  • the scale factor can be 1, the first type is 1, the second type is 2/3, the third type is 1/3, and the fourth type is 0.
  • a first type of corresponding TBS table is defined, and a TBS table corresponding to the second type and the third type can be converted according to the scale factor, that is, the TBS table corresponding to the first type is multiplied by the scale factor of the second type.
  • 2/3 obtains the corresponding TBS table of the second type; multiplies the corresponding TBS table of the first class by the scale factor 1/3 of the third class to obtain the TBS table corresponding to the third class; multiplies the corresponding TBS table of the first class by The fourth class of scale factor 0 yields the corresponding TBS table of the fourth class.
  • the scale factor can be 1, the first category is 1, the second category is 3/4, the third category is 1/2, the fourth category is 1/4, and the fifth category is 0. .
  • a first type of corresponding TBS table is defined, and a TBS table corresponding to the second type and the third type can be converted according to the scale factor, that is, the TBS table corresponding to the first type is multiplied by the scale factor of the second type.
  • 2/4 obtains the corresponding TBS table of the second type; multiplies the corresponding TBS table of the first class by the scale factor 1/2 of the third class to obtain the TBS table corresponding to the third class; multiplies the corresponding TBS table of the first class by The fourth type of scale factor 1/4 obtains the fourth type of corresponding TBS table; multiplying the first type of corresponding TBS table by the fifth type of scale factor 0 to obtain the fifth type of corresponding TBS table.
  • Classification criterion 2 The type of available RE is determined according to the symbol feature and/or RB feature in the time domain of 1 slot frequency domain as 1 RB.
  • Case 1 The type of available RE is determined according to the DMRS information in the time domain of 1 slot in the frequency domain of 1 RB.
  • the available REs are classified to obtain the types of available REs.
  • the symbols occupied by the DMRSs on each slot can be classified into two types, and the first one is occupied by one symbol.
  • it can be divided into 4 categories the first type occupies 1 symbol
  • the second type occupies 2 symbols
  • the third category occupies 3 symbols
  • the fourth category occupies 4 symbols.
  • the available REs are classified according to the number of REs occupied by the DMRS in a slot.
  • the number of REs occupied by the DMRS on each slot is 6, 12, and 24, and is divided into 6, 12, and 24 3 categories.
  • the number of REs occupied by the DMRS on each slot is 4, 8, 12, 16, 24, and is classified into four categories.
  • the number of REs occupied by the DMRS on each slot is 6, 12, 18, 24, and is classified into four categories.
  • the total occupied RE number may be 4, 6, 8, 12, 16, 18, 24, and may be classified into 3 categories or 4 categories.
  • Case 2 The type of available RE is determined according to the CSI-RS/PTRS/TRS information in the time domain of 1 slot in the frequency domain of 1 RB.
  • the CSI-RS/PTRS/TRS is similar to the case of the DMRS in Case 1. I will not go into details here.
  • the available REs may also be classified according to the type of the reference signal. For example, if only the DMRS is the first type in the time slot, only the CSI-RS is the second type, and the DMRS and the CSI-RS are the third type.
  • the number of REs available in a time slot can be 0 to 168.
  • 0 to 32 are the first category
  • 33 to 64 are the second category
  • 65 to 128 are the third category
  • 129 to 168 are the fourth category.
  • Case 5 Classification can be based on the number of symbols available for scheduling data
  • a PRB the number of symbols available on a time slot can be 0-14.
  • 0 to 4 are the first category
  • 5 to 8 are the second category
  • 9 to 12 are the third category
  • 13 to 14 are the fourth category.
  • the communication device specifically includes the time domain resource and the frequency domain resource, and matches the time-frequency feature in the classification criterion, specifically including the symbol feature, the slot feature, the RB feature, and the RBG feature, to After determining the type of available RE and determining the type of available RE, the TBS value under the type is obtained according to the determined type of available RE.
  • the terminal calculates the TBS
  • the number of time slots in the time domain for the classification criterion 2 is multiplied by the number of RBs in the frequency domain for the classification criterion 2, and the TBS value under the type is multiplied to obtain the data scheduling.
  • TBS size the number of time slots in the time domain for the classification criterion 2 is multiplied by the number of RBs in the frequency domain for the classification criterion 2, and the TBS value under the type is multiplied to obtain the data scheduling.
  • Classification criterion 3 The type of available RE is determined according to the symbol feature and/or RBG feature in the 1 RBG in the time domain of 1 symbol frequency domain.
  • Case 1 The available REs are classified for CSI-RS information under each RBG:
  • FIGS. 5a to 5c For the case of CSI-RS on each RBG, the type division of available REs can be performed, and a schematic diagram is given in FIGS. 5a to 5c.
  • the type of available REs can be divided as shown in FIG. 5a.
  • the REs occupied by the odd-numbered and even-numbered CSI-RSs are different, and are transmitted at intervals of 1 RB, and the type of available REs can be divided, as shown in FIG. 5b.
  • the RBs of the modulo 3 are different, the REs occupied by the CSI-RS are different, and the RBs are transmitted at intervals of 2 RBs, and the type of available REs can be divided, as shown in FIG. 5c.
  • the TBS value under the type is obtained according to the determined type of available RE.
  • the terminal calculates the TBS
  • the number of symbols in the time domain for the classification criterion 3 is multiplied by the number of RBGs in the frequency domain for the classification criterion three, and the TBS value under the type is multiplied to obtain the TBS of the data scheduling. size.
  • Classification criterion 4 The type of available REs is determined according to the slot characteristics in the time domain of 1 slot frequency domain and the RBG characteristics in 1 RBG.
  • the above classification criteria are directed to classification criteria for time domain features and/or frequency domain features within a single time domain scheduling unit and a single frequency domain scheduling unit. According to the above example, it is easy to infer multiple time domain scheduling units and multiple frequencies.
  • the classification criteria of the time domain feature and/or the frequency domain feature in the domain scheduling unit are not described here.
  • Classification Criteria 5 Determine the type of available REs for data scheduling based on the type of service the data is scheduled for.
  • Different RE types and/or different scale factors can be used for different service types, such as mobile broadband service (eMBB), high reliability and low latency service (URLLC), video service, voice service, packet service, real-time service, etc. And/or different TBS tables and/or different TBS determination methods. That is, different service types may correspond to different RE types and/or different scale factors and/or different TBS tables and/or different TBS determination methods and/or first available RE number and/or second available RE number. Taking into account the characteristics of different services, it is possible to more accurately determine the value of TBS that meets different service requirements and improve the performance of data transmission.
  • the URLLC can be a packet service.
  • the transmission time of the data scheduling can be one or several symbols. Therefore, the division of the RE type needs to be more refined.
  • the value range of the TBS is relatively small, mainly for the packet service, and therefore the interval of the TBS value. Can be relatively small.
  • the URLLC service requires high reliability and low latency, so the transmission rate can be relatively low.
  • the eMBB can be a large-packet service.
  • the data scheduling transmission time can be one time slot or multiple time slots. Therefore, the RE type can be relatively coarse, and the TBS value range is relatively large. Therefore, the interval of the TBS value can be relatively large. .
  • the code rate of different service requirements may be different.
  • the eMBB service requires a small or large code rate
  • the URLLC service requires a small code rate. Therefore, different services can have different modulation and coding schemes (MCS) tables.
  • MCS table of the eMBB service can have a large number of code rates
  • the code rate can be from small to large
  • the MCS has a relatively large number of identifiers
  • the MCS table of the URLLC service can have a small code rate or a small number of code rates, MCS.
  • the logo is relatively small.
  • the MCS table may be used to indicate the modulation mode and the identifier of the TBS, and may also be used to indicate the modulation mode and the code rate information.
  • the MCS table may also include two tables, one for indicating the modulation mode and one for indicating Rate information.
  • the MCS table is used to indicate the modulation mode and the code rate information as an example, indicating that different services can correspond to different MCS tables, as follows:
  • Table 3 is an MCS table for URLLC service transmission.
  • Table 4 is an MCS table for transmission of eMBB services.
  • Setting different services with different MCS tables can reduce the signaling overhead of the MCS.
  • a smaller MCS table can be designed, and the base station can use smaller bit information when notifying the terminal MCS, such as Table 3. It can be represented by 4 bits.
  • the eMBB service when the code rate and/or modulation mode and/or the number of TBS values are large, a larger MCS table can be designed. The base station can use more bit information when notifying the terminal MCS, such as Table 4. Expressed in 5 bits. Compared with different services, the same MCS table is used, and 5 bits are needed for different services, and the signaling overhead is large.
  • different service types adopt different classification criteria of available REs, for example, eMBB adopts one slot and one RB classification criterion, URLLC adopts one symbol and one RB classification criterion, and the like.
  • eMBB can be 1, 1/2, 1/4
  • URLLC can be 1, 1/2, 1/3, 1/4 , 2/3, 3/4 take values.
  • eMBB is a TBS table based on the number of REs
  • URLLC is a TBS table based on the number of REs.
  • the code rates included in different TBS tables can be different.
  • the same modulation mode of eMBB can include four kinds of code rates, and the corresponding scale factors are 1/2, 1/3, 2/3, 4/5, etc., and the same modulation mode of URLLC can include four types or A variety of code rates, the corresponding scale factor is 1/2, 1/3, 1/4, 2/5 or more and so on.
  • the determining method of the TBS may be that different available RE numbers may correspond to values of the same TBS.
  • the method for determining the value of the same TBS for the different available RE numbers may be specifically determined by specifying a value interval of the available RE number or a corresponding relationship between the value range and the TBS value. For example, if the value is in the range of N, the number of available REs with the value of N or the value of N is the same as the value of the same TBS.
  • the number of available REs with the interval of N may be the same as the TBS table in the TBS table or the TBS table, or the first available RE number or the second available RE number in the calculation formula or the corresponding scale factor. . This application is not limited herein.
  • the value of N may be defined for an available RE in a time domain of X1 symbols in the frequency domain of Y1 RBs; or for an available RE in the time domain of X2 symbol frequency domains for Y2 resource block groups RBG Or defined for the available REs in the frequency domain of X3 slots in the time domain for Y3 resource blocks RB; or for the available REs in the frequency domain of X4 slots in the time domain of Y4 RBGs; or It is defined for the number of available REs for the entire data schedule, where X1, X2, X3, X4, Y1, Y2, Y3, and Y4 are positive integers.
  • the specific definition method of the N may be predefined, or may be, the base station notifies the terminal by signaling, for example, by using the high layer signaling or the physical layer signaling, which is not limited herein.
  • the value of the TBS that is the smallest number of REs in the interval may be the same, or may be the maximum number of REs in the interval.
  • the TBS value is the same, or may be the same as the default TBS value of the default RE number in the interval.
  • the specific determination method may be predefined, or the base station may notify the terminal by using a signaling. Specifically, the content is not limited herein.
  • the signaling may be high layer signaling or physical layer signaling.
  • the TBS value of the certain or some RE numbers may be preset in advance.
  • the number of the REs closest to the default or some RE numbers may be the same TBS value.
  • the specific determination method may be predefined, or the base station may notify the terminal by using a signaling. Specifically, it is not limited herein.
  • the signaling may be high layer signaling or physical layer signaling.
  • the correspondence between the TBS values in the TBS table corresponding to the value interval N is taken as an example. If the value of N is specified as 4, the available RE number interval or the range 4 or less corresponds to the same one. TBS value. For example, if the TBS value corresponding to the number of available REs is 4, the value of the TBS with the number of available REs is 8 and the value of the TBS for which the number of available REs is 12 is C. 3, the value of the corresponding TBS is A; when the available RE number is 2, the corresponding TBS is A; when the available RE number is 1, the corresponding TBS is A; when available RE When the number is 5, the value of the corresponding TBS may be A, or the value of the corresponding TBS may be B.
  • the value of the corresponding TBS may be A, or may be the corresponding TBS.
  • the value is B.
  • the value of the corresponding TBS is B.
  • the value of the corresponding TBS is B, or the value of the corresponding TBS.
  • C when the available RE number is 10, the value of the corresponding TBS may be B, or the value of the corresponding TBS may be C; when the available RE number is 11, the value of the corresponding TBS may be C;
  • the method that the different available RE numbers correspond to the values of the same TBS may be determined by specifying a correspondence between the partitioning interval of the available RE number and the value of the TBS.
  • the division interval may include one or more intervals, and each interval corresponds to a value of one TBS.
  • the available RE number in the interval corresponds to the same TBS table or the TBS value in the TBS table or the first available RE number or the second available RE number in the calculation formula or the same scale factor.
  • the specifics are not limited herein.
  • the method for dividing the specific interval may be predefined, or the base station may notify the terminal by using a signaling, which is not limited herein.
  • the signaling may be high layer signaling or physical layer signaling.
  • each partitioning interval includes one or more available RE numbers.
  • the partitioning interval of the available RE number and the TBS value in the TBS table As an example, if three partitions are divided, for example, the interval 1 is 0 to 4, the interval 2 is 5 to 8, and the interval 3 is 9 to 12, the number of available REs in the interval corresponds to the same TBS value in the TBS table. For example, if the TBS corresponding to the interval 1 is set to A, the TBS corresponding to the interval 2 is B, and the TBS corresponding to the interval 3 is C, when the available RE number is 3, the value of the TBS can be corresponding.
  • the corresponding TBS value is A; when the available RE number is 1, the corresponding TBS value is A; when the available RE number is 5, it may be the corresponding TBS.
  • the value is B; when the available RE number is 6, the value of the corresponding TBS is B; when the available RE number is 7, the value of the corresponding TBS is B; when the available RE number is 9, The value of the corresponding TBS is C.
  • the number of available REs is 10
  • the value of the corresponding TBS is C.
  • the number of available REs is 11, the value of the corresponding TBS is C.
  • Others may be used. Corresponding circumstances, the specific is not limited.
  • the specific value of the N or the division of the interval may be predefined.
  • the base station may notify the terminal by using the signaling, for example, by using the high layer signaling or the physical layer signaling, which is not limited herein.
  • the high-level signaling may be a radio resource control (RRC) signaling or a medium access control (MAC) control element (Control Element) (CE) or other signaling, which is not limited herein.
  • the physical layer signaling may be downlink control information or the like.
  • the value interval or the value range of the available RE number or the partitioning interval of the available RE number and the TBS may also be used.
  • the correspondence between the interval of the FR number or the value range or the number of the RE number and the type of the available RE may be specifically limited.
  • the value of the TBS or the number of REs corresponding to the same TBS or the type of the available RE can be avoided by specifying the value of the available RE number or the number of REs.
  • the problem of excessive value of TBS Because the value of the TBS does not need to be accurate to each RE, the excessive value of the TBS will increase the complexity of the system, and there will be an abnormal value of the TBS, resulting in a decrease in data transmission performance.
  • the default number of transmission layers is one.
  • the value of the TBS needs to be considered in consideration of the number of the transport layer. For example, reference may be made to the prior art or other manners, which is not limited herein.
  • the embodiment of the present application provides a communication device 600, which may be a separate network element, and may be a terminal or a base station, or may be a functional module in a corresponding network element.
  • the structure of the device 600 includes: a first determining unit 610 and a second determining unit 620, wherein:
  • a first determining unit 610 configured to determine a type of the available resource element RE of the data scheduling
  • the second determining unit 620 is configured to determine a transport block size of the data according to the type of the available RE.
  • the first determining unit 610 is specifically configured to: when determining a type of available REs for data scheduling:
  • the classification criterion is a symbol feature of Y1 RBs according to a time domain of X1 symbol frequency domains and/or Determined by the RB feature; or the classification criterion is determined according to a symbol feature and/or an RBG feature in the Y2 resource block group RBG in the time domain for the X2 symbol frequency domain; or the classification criterion is based on the time domain X3
  • the slot frequency domain is determined by slot characteristics and/or RB characteristics under Y3 resource block RBs; or the classification criterion is based on time zone X4 slots frequency domain is Y4 RBG slot characteristics and / or RBG feature determined; or the classification criterion is the number of available REs for data scheduling, where X1, X2, X3, X4, Y1, Y2, Y3 and Y4 are
  • the symbol feature includes at least one of reference signal information existing in the symbol and a number of REs available in the symbol;
  • the RB feature includes at least one of reference signal information existing in the RB and a number of REs available in the RB;
  • the time slot feature includes reference signal information existing in the time slot and at least one of a number of REs available in the time slot and a number of symbols available in the time slot;
  • the RBG feature includes reference signal information existing in the RBG and at least one of an available RE number in the RBG and an available RB number in the RBG.
  • the reference signal information includes: at least one of the reference signal, the number of antenna ports of the reference signal, and the number of REs occupied by the reference signal.
  • the device when the device is a terminal, the device further includes a receiving unit 630, configured to receive first signaling sent by the base station, where the first signaling is used to indicate a classification criterion of the available RE.
  • the first determining unit 610 is specifically configured to: determine a classification criterion of a predefined available RE;
  • the first determining unit 610 is specifically configured to: determine a classification criterion of a predefined available RE or configure a classification criterion of an available RE according to a service feature of the data scheduling.
  • the determining, by the first determining unit 610, when determining the type of the available RE of the data scheduling according to the classification criterion of the available RE specifically:
  • the first determining unit 610 is specifically configured to: when determining a type of available REs for data scheduling:
  • the service type to which the data schedule belongs is determined, and the type of available REs of the data schedule is determined according to the service type, where different service types correspond to different types of available REs.
  • the second determining unit 620 is specifically configured to: when determining a transport block size of the data according to the type of the available RE:
  • a scale factor corresponding to the type of the available RE multiplying the scale factor by a preset value, to obtain a transport block size of the data, where the preset value is determined according to a preset transport block size table or Calculated according to the modulation mode, the code rate, the number of transmission layers, and the first available RE number of the apparatus 600, where the first available RE number is predefined or determined according to a time-frequency resource scheduled by the data; or
  • the first determining unit 610 and the second determining unit 620a may be implemented by a processor, and the receiving unit 630 may be implemented by a transceiver or a communication interface.
  • the communication device provided by the embodiment shown in FIG. 6 can also be implemented in other forms.
  • the communication device can include a memory 701, a processor 702, a system bus 703, and a communication interface 704.
  • the processor 702, the memory 701, and the communication interface 704 are connected by a system bus 703.
  • the memory 701 is configured to store computer execution instructions.
  • the processor 702 executes computer execution instructions stored in the memory 701 to cause the communication device to perform the determination method of the transport block size provided by the embodiment shown in FIG.
  • the method for determining the specific transport block size refer to the related descriptions in the above and the drawings, and details are not described herein again.
  • the processor 702 can be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for performing related operations.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the communication device provided in the embodiment shown in FIG. 7 may be an FPGA, an ASIC, a system on chip (SoC), a CPU, a network processor (NP), and a digital signal processing circuit (digital signal).
  • SoC system on chip
  • NP network processor
  • NP digital signal processing circuit
  • DSP micro controller unit
  • PLD programmable logic device
  • the communication device shown in FIG. 7 only shows the memory 701, the processor 702, the system bus 703, and the communication interface 704, in a specific implementation process, those skilled in the art should understand that the communication device also includes normal operation. Other devices necessary. At the same time, those skilled in the art will appreciate that the communication device may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the communication device may also include only the devices or modules necessary to implement the embodiments of the present application, and do not necessarily include all of the devices shown in FIG.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种传输块大小的确定方法和装置，以实现在不同RB上可用RE数不同的情况下，准确确定传输块大小，提升系统性能。该方法为，通信设备确定数据调度的可用资源元素RE的,类型；根据所述可用RE的类型确定数据的传输块大小，这样，通信设备能够根据可用RE的类型准确确定数据的传输块大小，提升系统性能。

Description

一种传输块大小的确定方法和装置
本申请要求2017年6月16日提交中国专利局、申请号为201710459081.5、发明名称为“一种传输块大小的确定方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请文件中。
技术领域
本申请涉及通信技术领域，尤其涉及一种传输块大小的确定方法和装置。
背景技术
在长期演进(Long Term Evolution，LTE)系统中，传输块大小(Transport Block Size，TBS)是根据编码调制方案(Modulation and Coding Scheme，MCS)以及分配的资源块(Resource Block，RB)数查找TBS表格确定的。
但是第五代移动通信技术(5G)新无线(New Radio，NR)系统中数据的调度可以更加灵活，比如数据调度时指示时域具体的起始位置和终止位置。每个时隙可以用的符号数可以动态变化，而且不同的符号上可用的资源元素(Resource Element，RE)的个数不同；针对频域上，不同的RB上可用的RE的个数也可以不同。
由于LTE中的TBS的确定方法不能灵活的支持不同RB上可用RE数不同的情况，因此，LTE中的TBS的确定方法并不能够满足NR系统的TBS确定需求。
发明内容
本申请实施例提供一种传输块大小的确定方法和装置，以在不同RB上可用RE数不同的情况下，准确确定传输块大小，提升系统性能。
第一方面，提供一种传输块大小的确定方法，通信设备确定数据调度的可用资源元素RE的类型；所述通信设备根据所述可用RE的类型确定数据的传输块大小。这样，通信设备能够根据数据调度的可用RE的类型，准确确定数据的传输块大小，可以满足系统要求，提升系统性能。
结合第一方面，一种可能的设计中，所述通信设备确定数据调度的可用RE的类型，包括：所述通信设备确定可用RE的分类准则，根据所述可用RE的分类准则，确定数据调度的可用RE的类型，所述分类准则是根据时域为X1个符号频域为Y1个RB下的符号特征和/或RB特征确定的；或所述分类准则是根据时域为X2个符号频域为Y2个资源块组RBG下的符号特征和/或RBG特征确定的；或所述分类准则是根据时域为X3个时隙频域为Y3个资源块RB下的时隙特征和/或RB特征确定的；或所述分类准则是根据时域为X4个时隙频域为Y4个RBG下的时隙特征和/或RBG特征确定的；或所述分类准则为数据调度的可用RE的数目，其中X1，X2，X3，X4，Y1，Y2，Y3和Y4为正整数。这种设计中，灵活设计了多种可用RE的分类准则，通信设备在实际应用中具体采用何种分类准则可以根据系统性能，灵活选择。
结合第一方面，一种可能的设计中，所述符号特征包括符号内存在的参考信号信息和符号内可用的RE数中至少一项；所述RB特征包括RB内存在的参考信号信息和RB内可 用的RE数中至少一项；所述时隙特征包括时隙内存在的参考信号信息和时隙内可用的RE数和时隙内可用的符号数中至少一项；所述RBG特征包括RBG内存在的参考信号信息和RBG内可用的RE数和RBG内可用的RB数中至少一项。这种设计中，根据设计的时频特征能够灵活设计分类准则，进一步确定可用RE的类型，由于不同的RE的类型确定的TBS值不同，从而根据可用RE的类型，准确确定出数据的TBS大小。
结合第一方面，一种可能的设计中，所述参考信号信息包括：是否存在所述参考信号、所述参考信号的天线端口数、所述参考信号占用的RE数中的至少一项。这种设计中，由于参考信号信息可以采用上述设计中的任意组合，当分类准则中采用参考信号信息时，能够根据参考信号信息实现可用RE的多样性分类，满足不同的需求。
结合第一方面，一种可能的设计中，所述通信设备为终端时，所述通信设备确定可用RE的分类准则，包括：所述通信设备确定预定义的可用RE的分类准则或接收基站发送的第一信令，所述第一信令用于指示所述可用RE的分类准则；所述通信设备为基站时，所述通信设备确定可用RE的分类准则，包括：所述通信设备确定预定义的可用RE的分类准则或所述通信设备根据数据调度的业务特征配置可用RE的分类准则。这种设计中，可以采用两种方式确定分类准则，一种是协议直接规定，这种方式较为简单直接，无需基站和终端之间过多的交互，节省信令开销；另一种是基站根据数据调度的业务特征动态配置分类准则，并告知终端，这种方式灵活性更好，满足不同的业务需求。
结合第一方面，一种可能的设计中，所述通信设备根据所述可用RE的分类准则，确定数据调度的可用RE的类型，包括：所述通信设备根据所述可用RE的分类准则、所述数据调度的时频资源，确定数据调度的可用RE的类型。
结合第一方面，一种可能的设计中，所述通信设备确定数据调度的可用RE的类型，包括：所述通信设备确定数据的业务类型，根据所述业务类型确定数据可用RE的类型，其中，不同的业务类型对应不同的可用RE的类型。这种设计中，可以针对不同的业务类型设计不同的分类准则，从而区分业务类型，确定数据的TBS大小。
结合第一方面，一种可能的设计中，所述通信设备根据所述可用RE的类型确定数据的传输块大小，包括：所述通信设备根据所述可用RE的类型，确定所述可用RE的类型对应的传输块大小的表格，基于所述传输块大小的表格确定所述数据的传输块大小；或所述通信设备根据所述可用RE的类型，以及可用RE的类型与传输块大小的对应关系，确定所述数据的传输块大小；或所述通信设备确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述通信设备的调制方式、码率、传输层数和第一可用RE数计算的，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的；或所述通信设备确定所述可用RE的类型对应的第二可用RE数，利用所述通信设备的调制方式、码率、传输层数和第二可用RE数计算得到所述数据的传输块大小。上述设计中，不同的可用RE的类型对应不同的TBS表格或TBS值或预设值或不同的计算方法，从而确定对应类型的数据的TBS值，提升系统性能。
第二方面，提供一种传输块大小的确定装置，包括：
第一确定单元，用于确定数据调度的可用资源元素RE的类型；
第二确定单元，用于根据所述可用RE的类型确定数据的传输块大小。
结合二方面，一种可能的设计中，所述第一确定单元在确定数据调度的可用RE的类 型时，具体用于：确定可用RE的分类准则，根据所述可用RE的分类准则，确定数据调度的可用RE的类型，所述分类准则是根据时域为X1个符号频域为Y1个RB下的符号特征和/或RB特征确定的；或所述分类准则是根据时域为X2个符号频域为Y2个资源块组RBG下的符号特征和/或RBG特征确定的；或所述分类准则是根据时域为X3个时隙频域为Y3个资源块RB下的时隙特征和/或RB特征确定的；或所述分类准则是根据时域为X4个时隙频域为Y4个RBG下的时隙特征和/或RBG特征确定的；或所述分类准则为数据调度的可用RE的数目，其中X1，X2，X3，X4，Y1，Y2，Y3和Y4为正整数。
结合二方面，一种可能的设计中，所述符号特征包括符号内存在的参考信号信息和符号内可用的RE数中至少一项；所述RB特征包括RB内存在的参考信号信息和RB内可用的RE数中至少一项；所述时隙特征包括时隙内存在的参考信号信息和时隙内可用的RE数和时隙内可用的符号数中至少一项；所述RBG特征包括RBG内存在的参考信号信息和RBG内可用的RE数和RBG内可用的RB数中至少一项。
结合二方面，一种可能的设计中，所述参考信号信息包括：是否存在所述参考信号、所述参考信号的天线端口数、所述参考信号占用的RE数中的至少一项。
结合二方面，一种可能的设计中，所述装置为终端时，所述装置还包括接收单元，用于接收基站发送的第一信令，所述第一信令用于指示所述可用RE的分类准则；所述第一确定单元具体用于：确定预定义的可用RE的分类准则；所述装置为基站时，所述第一确定单元具体用于：确定预定义的可用RE的分类准则或根据数据调度的业务特征配置可用RE的分类准则。
结合二方面，一种可能的设计中，所述第一确定单元在根据所述可用RE的分类准则，确定数据调度的可用RE的类型时，具体用于：根据所述可用RE的分类准则、所述数据调度的时频资源，确定数据调度的可用RE的类型。
结合二方面，一种可能的设计中，所述第一确定单元在确定数据调度的可用RE的类型时，具体用于：确定数据调度所属的业务类型，根据所述业务类型确定数据调度的可用RE的类型，其中，不同的业务类型对应不同的可用RE的类型。
结合二方面，一种可能的设计中，所述第二确定单元在根据所述可用RE的类型确定数据的传输块大小时，具体用于：根据所述可用RE的类型，确定所述可用RE的类型对应的传输块大小的表格，基于所述传输块大小的表格确定所述数据的传输块大小；或根据所述可用RE的类型，以及可用RE的类型与传输块大小的对应关系，确定所述数据的传输块大小；或确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述装置的调制方式、码率、传输层数和第一可用RE数计算的，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的；或确定所述可用RE的类型对应的第二可用RE数，利用所述装置的调制方式、码率、传输层数和第二可用RE数计算得到所述数据的传输块大小。
第三方面，提供一种通信设备，该通信设备为终端或基站，该通信设备具有实现上述第一方面方法示例中通信设备行为的功能。所述功能可以通过硬件实现。所述通信设备的结构中包括：存储器，用于存储计算机可执行程序代码；通信接口，以及处理器，处理器与存储器、通信接口耦合。其中存储器所存储的程序代码包括指令，当处理器执行所述指令时，所述指令使通信设备执行上述第一方面或第一方面的任意一种可能的设计中通信设 备所执行的方法。
第四方面，提供一种计算机存储介质，用于储存为上述通信设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第五方面，提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
附图说明
图1为本申请实施例的一种应用场景示意图；
图2为本申请实施例的另一种应用场景示意图；
图3为本申请实施例的传输块大小的确定方法的流程示意图；
图4a～图4f为本申请实施例中对可用RE进行分类的示意图；
图5a～图5c为本申请实施例中对可用RE进行分类的示意图；
图6为本申请实施例提供的通信装置的结构示意图；
图7为本申请实施例提供的通信设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
本文提供的技术方案可以应用于5G NR系统(下文中简称为NR系统)，也可以用于下一代移动通信系统或其他类似的移动通信系统。
以下，对本发明实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)终端，是指向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端可以经无线接入网(Radio Access Network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端可以包括接入点(Access Point，AP)、用户设备(User Equipment，UE)、无线终端、移动终端、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point，AP)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、或用户装备(User Device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端的计算机，便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，智能穿戴式设备等。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)、智能手表、智能头盔、智能眼镜、智能手环等设备。
(2)基站，是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。基站还可协调对空中接口的属性管理。例如，基站可以包括LTE系统或演进的LTE系统(LTE-Advanced，LTE-A)中的演进型基站(eNB或e-NodeB，evolutional Node B)，或LTE系统或LTE-A系统中的小 基站(micro/pico eNB)，或者也可以包括NR系统中的下一代节点B(next generation node B，gNB)，或者是传输点(transmission point，TP)，也可以是收发节点(transmission and receiver point，TRP)，等等，本申请实施例并不限定。
(3)本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两个以上，鉴于此，本申请实施例中也可以将“多个”理解为“至少两个”。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
为了更好地理解本申请实施例的技术方案，首先介绍本申请实施例的应用场景。
请参见图1，为本申请实施例的一种应用场景。图1中包括终端和基站，终端与基站可以进行信息交互，基站能够向终端传输下行数据，则终端也可以接收基站传输的下行数据。另外，终端还能够向基站传输上行数据，基站也就可以接收终端传输的上行数据。本申请中TBS的确定方法可以是针对上行数据的传输块大小，也可以是针对下行数据的传输块大小，具体的在此不做限定。
除了图1所示的应用场景之外，本申请实施例还可以用于联合传输场景，例如，以现有的协作多点传输(Coordinated Multiple Points Transmission，CoMP)多点传输为背景，将现有的多输入多输出(Multiple-Input Multiple-Output，MIMO)技术(包括提高传输可靠性的分集技术和提高传输数据速率的多流技术)与协作多点传输结合起来，组成分布式多天线系统，以更好地服务用户。请参考图2，为多天线站点协同传输的应用场景示意图。其中，本申请实施例对于同构网络与异构网络的场景均适用，同时对于传输点也无限制，可以是宏基站与宏基站、微基站与微基站、或宏基站与微基站间的协作多点传输，且对频分双工(Frequency Division Dual，FDD)/时分双工(Time Division Duplexing，TDD)/灵活双工(flexible duplexing，or，Dynamic Time Division Duplexing，D-TDD)系统均适用。本申请实施例可以适用于低频场景(小于或等于6GHz)，也适用于高频场景(比如大于6GHz)。
因为NR系统中，数据的调度可以更加灵活存在多种可能性，因此，终端和基站无法再根据LTE中的方法来确定数据调度的TBS，也就无法实现正常的数据调度。为解决该技术问题，提供本申请实施例的技术方案，下面结合附图进行介绍。在下面的介绍过程中，以本申请实施例提供的技术方案应用于图1或图2所示的应用场景为例。其中，如果本申请实施例提供的技术方案应用于图2所示的应用场景，则可以认为本申请实施例是从其中的任意一个基站的角度进行描述的。
请参见图3，图3示出了本申请实施例提供的传输块大小的确定方法的流程示意图，该流程具体可通过硬件、软件编程或软硬件的结合来实现。
通信设备可被配置为执行如图3所示的流程，该通信设备可以为终端或基站，终端或基站中用以执行本申请实施例所提供的传输块大小的确定方案的功能模块具体可以通过硬件、软件编程以及软硬件的组合来实现，硬件可包括一个或多个信号处理和/或专用集成电路。
如图3所示，该流程具体包括有以下处理过程：
步骤30：通信设备确定数据调度的可用RE的类型。
需要说明的是，本申请实施例中的可用RE是指用于承载数据的RE，也可以指不承载 RS的RE；不可用RE是指不用于承载数据的RE，也可以是指承载RS的RE。
具体的，所述通信设备确定数据调度的可用RE的类型时，可以包括以下两种实现方式：
第一种实现方式：所述通信设备确定可用RE的分类准则，根据所述可用RE的分类准则，确定数据调度的可用RE的类型，所述分类准则是根据时域为X1个符号频域为Y1个RB下的符号特征和/或RB特征确定的；或所述分类准则是根据时域为X2个符号频域为Y2个资源块组RBG下的符号特征和/或RBG特征确定的；或所述分类准则是根据时域为X3个时隙频域为Y3个资源块RB下的时隙特征和/或RB特征确定的；或所述分类准则是根据时域为X4个时隙频域为Y4个RBG下的时隙特征和/或RBG特征确定的；或所述分类准则为数据调度的可用RE的数目，其中X1，X2，X3，X4，Y1，Y2，Y3和Y4为正整数。
具体的，可选的X1，X2，X3，X4，Y1，Y2，Y3和Y4中的至少一个取值可以是预定义的，或者X1，X2，X3，X4，Y1，Y2，Y3和Y4中的至少一个取值可以是基站通过信令通知终端的，具体的在此不做限定。信令可以是高层信令或者物理层信令等。
需要说明的是，RBG可以是资源分配的一种基本单元，一个RBG可以包括一个或者多个RB，具体的RBG的大小可以是预定义的，也可以是信令通知的，具体的，在此不做限定。可选的，RBG的大小可以是动态或者半静态变化的。可选的,RBG的大小可以是系统级的，带宽部分级的，用户级的，或者用户组级的，具体的在此不做限定。可选的,RBG的大小可以是不同的信道采用不同的RBG的大小，或者不同的业务采用不同的RBG的大小，具体的在此不做限定。
可选的，分类准则对应的资源可以看做是参考资源单元。比如分类准则为根据时域为X1个符号频域为Y1个RB下的符号特征和/或RB特征确定的，则时域为X1个符号频域为Y1个RB对应的资源为参考资源单元。其他的分类准则以此类推，具体的在此不做限定。
可选的，通信设备确定可用RE的分类准则，可以是根据资源分配方法确定或者是根据数据调度方法确定。
可选的，不同的资源分配方法或者数据调度方法可以对应不同的可用RE的分类准则。
资源分配方法可以是资源分配类型0或者资源分配类型1或者资源分配类型2，可以是现有技术中的资源分配类型，也可以是其他的资源分配类型，也可以是基于RB的资源分类类型或者是基于RBG的资源分配类型等。
数据调度方法可以是基于时隙的调度方法或者是基于微时隙的调度方法或者是基于时隙聚合的调度方法或者是基于微时隙聚合的调度方法，或者是基于时隙和微时隙聚合的调度方法。
当所述通信设备为终端时，所述通信设备确定可用RE的分类准则，包括：所述通信设备确定预定义的可用RE的分类准则或接收基站发送的第一信令，所述第一信令中包括所述可用RE的分类准则。
所述通信设备为基站时，所述通信设备确定可用RE的分类准则，包括：所述通信设备确定预定义的可用RE的分类准则或所述通信设备根据数据调度的业务特征配置可用RE的分类准则。
具体的，所述通信设备根据所述可用RE的分类准则，确定数据调度的可用RE的类 型时，需要确定数据调度的时频资源，根据所述可用RE的分类准则、所述数据调度的时频资源，确定数据调度的可用RE的类型。
例如，若可用RE的分类准则为时域为1个符号频域为1个RB下的每个符号内是否存在DMRS，利用该分类准则将可用RE分为2类，符号上存在DMRS为第一类；符号上不存在DMRS为第二类。此时，数据调度的时频资源为连续的3个符号5个RB，比如，这3个符号内都不存在DMRS为第二类，此时，通信设备获取第二类对应的TBS表格或预设的TBS值，利用该TBS表格确定出对应的TBS值，再乘以3得到此次调度的数据的TBS大小。
又例如，若可用RE的分类准则为时域为1个符号频域为1个RBG中是否存在CSI-RS，利用该分类准则将可用RE分为4类，1个符号1个RBG中的每个RB上都存在为第一类；1个符号1个RBG中的每个RB上都不存在为第二类；1个符号上1个RBG中有1个RB上不存在为第3类；1个符号上1个RBG中有2个RB上不存在为第4类；此时，数据调度的时频资源为连续的3个符号5个RBG，针对这15个时频块确定属于何种类型，以及每个类型中的个数，此时，通信设备获取每个类型对应的TBS表格或预设的TBS值，利用该TBS表格确定出对应的TBS值，再乘以每个类型对应的个数得到此次调度的数据的TBS大小。
其中，所述符号特征包括符号内存在的参考信号信息和符号内可用的RE数中至少一项；所述RB特征包括RB内存在的参考信号信息和RB内可用的RE数中至少一项；所述时隙特征包括时隙内存在的参考信号信息和时隙内可用的RE数和时隙内可用的符号数中至少一项；所述RBG特征包括RBG内存在的参考信号信息和RBG内可用的RE数和RBG内可用的RB数中至少一项。
进一步的，所述参考信号信息包括：是否存在所述参考信号、所述参考信号的天线端口数、所述参考信号占用的RE数中的至少一项。
其中，所述参考信号包括解调参考信号(Demodulation Reference Signal，DMRS)、信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)、相位跟踪参考信号(Phase-tracking RS，PT-RS)。跟踪参考信号(Tracking RS，TRS)中的至少一项。
可选的，通信设备确定可用RE的类型，可以是根据资源分配方法确定或者是根据数据调度方法确定。
可选的，不同的资源分配方法或者数据调度方法可以对应不同的可用RE的类型。
资源分配方法可以是资源分配类型0或者资源分配类型1或者资源分配类型2，可以是现有技术中的资源分配类型，也可以是其他的资源分配类型，也可以是基于RB的资源分类类型或者是基于RBG的资源分配类型等。
数据调度方法可以是基于时隙的调度方法或者是基于微时隙的调度方法或者是基于时隙聚合的调度方法或者是基于微时隙聚合的调度方法，或者是基于时隙和微时隙聚合的调度方法。
第二种实现方式：所述通信设备确定数据调度的业务类型，根据所述业务类型确定数据调度的可用RE的类型，其中，不同的业务类型对应不同的可用RE的类型。
步骤31：所述通信设备根据所述可用RE的类型确定数据的传输块大小。
具体的，所述通信设备根据所述可用RE的类型确定数据的传输块大小，包括以下四种实现方式：
方式一：所述通信设备根据所述可用RE的类型，确定所述可用RE的类型对应的传输块大小的表格，基于所述传输块大小的表格确定所述数据的传输块大小。
方式二：所述通信设备根据所述可用RE的类型，以及可用RE的类型与传输块大小的对应关系，确定所述数据的传输块大小。
这种方式中，不同的类型预先设置不同的传输块大小，节省TBS的计算过程。
方式三：所述通信设备确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述通信设备的调制方式、码率、传输层数和第一可用RE数计算的，其中，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的。
具体的，一种可能的实施方式中，TBS的取值可以通过调制方式、码率、传输层数、第一可用RE数计算得到，具体过程如下：
公式一：
Figure PCTCN2018089371-appb-000001
其中，
Figure PCTCN2018089371-appb-000002
表示向上取整；N sf为分类准则对应下的参考资源单元的个数；
Figure PCTCN2018089371-appb-000003
为该参考资源单元对应的可用RE数或者为预设的RE数值，即第一可用RE数；v为传输层数；R为码率。
方式四：所述通信设备确定所述可用RE的类型对应的第二可用RE数，利用所述通信设备的调制方式、码率、传输层数和第二可用RE数计算得到所述数据的传输块大小。
具体的，计算公式与上述公式一类似，将第一可用RE数替换为第二可用RE数即可。
具体的，一种可能的实施方式中，TBS的取值可以通过TBS表格确定，具体过程如下：
表1、表2给出了TBS表格的具体示例，利用表1，通信设备根据MCS索引(index)可以确定出调制方式以及TBS index，再根据TBS index以及分配的RB个数N RB查表2，即可确定TBS的取值。
表1
Figure PCTCN2018089371-appb-000004
表2
Figure PCTCN2018089371-appb-000005
Figure PCTCN2018089371-appb-000006
下面针对利用不同的分类准则来确定可用RE的类型这一过程进行举例说明。具体的，基站与终端采用何种分类准则可以通过协议进行预先规定，也可以是基站动态配置，并通过信令告知终端，具体的信令可以是高层信令或者物理层信令等，本申请中不限定。
分类准则一：是根据时域为1个符号频域为1个RB下的符号特征和/或RB特征确定可用RE的类型。
情形一：根据时域为1个符号频域为1个RB下的DMRS信息确定可用RE的类型。
比如，根据符号内是否有DMRS，对可用RE进行分类得到可用RE的类型，分为有DMRS和无DMRS这2类。
再比如，根据DMRS的天线端口数，对可用RE进行分类得到可用RE的分类准则，具体的，比如DMRS的天线端口数为0时为第一类，DMRS的天线端口数为1～2个的为第二类，DMRS的天线端口数为3～4个的为第三类，DMRS的天线端口数为5～8个的为第四类，等等。
再比如，根据DMRS占用的RE数，对可用RE进行分类得到可用RE的类型，比如DMRS占用0个RE为第一类，DMRS占用2个RE为第二类，DMRS占用4个RE为第三类，DMRS占用8个RE为第四类，等等。
再比如，根据DMRS的天线端口数和占用的RE数进行分类，比如DMRS的天线端口数为0，且占用0个RE的为第一类；DMRS的天线端口数为1～2个，且占用2个RE或者DMRS的天线端口数为3～4个且占用2个RE的为第二类；DMRS的天线端口数为1～2个，且占用4个RE或者DMRS的天线端口数为3～4个且占用4个RE，或者，DMRS的天线端口数为5～8个，且占用8个RE或者DMRS的天线端口数为5～8个且占用16个RE的为第三类，等等。
具体的，图4a～图4c示出了根据每个符号上的DMRS信息，对可用RE进行分类的示意图。
图4a中的根据DMRS的分类设计，每个symbol上的数据可用RE/DMRS占用的RE 可以分为3类。
图4b中的根据DMRS的分类设计，每个symbol上的数据可用RE/DMRS占用的RE可以分为4类。
图4c中的根据DMRS的分类设计，每个symbol上的数据可用RE/DMRS占用的RE可以分为5类。
如果数据调度同时支持多种DMRS的分类设计时，总的数据的可用RE/DMRS占用RE可以是0，3，4，6，8，9，12，可以将可用RE划分为3类或者4类。比如，具体的可以是0为第一类，3，4，6为第二类，8，9为第三类，12为第四类。
情形二：根据时域为1个符号频域为1个RB下的CSI-RS/PTRS/TRS信息，确定可用RE的类型。
CSI-RS/PTRS/TRS与情形一中的DMRS的情况类似。在此不赘述。
具体的，图4d～图4f示出了根据每个符号每个RB上的CSI-RS信息，对可用RE进行分类的示意图。
情形三：不同的参考信号占用同一符号时，也可以按照参考信号的类型对可用RE进行分类。
比如，若符号中只有DMRS为第一类，只有CSI-RS为第二类，同时有DMRS和CSI-RS为第三类等等。
情形四：根据符号内的可用RE数对可用RE进行分类
比如一个RB,一个符号上可用的RE数可以为0～12。具体的，比如若可用RE数0～4为第一类，5～8为第二类，9～12为第三类等等。
需要说明的是，上述四种情形中的至少两种也可以结合使用。具体的，比如确定可用RE的分类时，可以既要考虑DMRS的信息也要考虑CSI-RS/PTRS/TRS的信息，共同确定可用RE的类型。
进一步的，确定出可用RE的类型之后，根据确定的可用RE的类型得到该类型下的TBS值。
例如，终端在计算TBS时，时域上针对分类准则一下的符号的个数乘以频域上针对分类准则一下的RB的个数乘以该类型下的TBS值，得到数据调度的TBS大小。
需要说明的是，不同类型之间可以进行比例的相互转化，以DMRS为例：
图4a中的根据DMRS的分类设计，比例因子可以为，第一类为1，第二类是1/2，第三类是0。
例如，制定了第一类对应的TBS表格，可以根据比例因子，转化得到第二类和第三类分别对应的TBS表格，即，将第一类对应的TBS表格乘以第二类的比例因子1/2得到第二类对应的TBS表格；将第一类对应的TBS表格乘以第三类的比例因子0得到第三类对应的TBS表格。
图4b中的根据DMRS的分类设计，比例因子可以为，第一类为1，第二类是2/3，第三类是1/3，第四类是0。
例如，制定了第一类对应的TBS表格，可以根据比例因子，转化得到第二类和第三类分别对应的TBS表格，即，将第一类对应的TBS表格乘以第二类的比例因子2/3得到第二类对应的TBS表格；将第一类对应的TBS表格乘以第三类的比例因子1/3得到第三类对应 的TBS表格；将第一类对应的TBS表格乘以第四类的比例因子0得到第四类对应的TBS表格。
图4c中的根据DMRS的分类设计，比例因子可以为，第一类为1，第二类是3/4，第三类是1/2，第四类是1/4，第五类是0。
例如，制定了第一类对应的TBS表格，可以根据比例因子，转化得到第二类和第三类分别对应的TBS表格，即，将第一类对应的TBS表格乘以第二类的比例因子2/4得到第二类对应的TBS表格；将第一类对应的TBS表格乘以第三类的比例因子1/2得到第三类对应的TBS表格；将第一类对应的TBS表格乘以第四类的比例因子1/4得到第四类对应的TBS表格；将第一类对应的TBS表格乘以第五类的比例因子0得到第五类对应的TBS表格。
分类准则二：是根据时域为1个时隙频域为1个RB下的符号特征和/或RB特征确定可用RE的类型。
情形一：根据时域为1个时隙频域为1个RB下的DMRS信息确定可用RE的类型。
比如，根据DMRS占用的符号数，对可用RE进行分类得到可用RE的类型，比如根据DMRS的分类设计，每个slot上的DMRS占用的符号可以分为2类，占用1个符号的为第一类或者占用2个符号的为第二类。或者，可以分为4类，占用1个符号的为第一类，占用2个符号的为第二类，占用3个符号的为第三类，占用4个符号的为第四类。或者可以分为2类，占用1～2个符号的第为一类，占用3～4个符号的为第二类等等。
比如，根据一个slot中的DMRS占用的RE数对可用RE进行分类，比如，结合单个符号上的DMRS的情况，每个slot上的DMRS占用的RE的个数为6，12，24，分为3类。再比如，结合单个符号上的DMRS的情况，每个slot上的DMRS占用的RE的个数为4，8，12，16，24，分为4类。再比如，结合单个符号上的DMRS的情况，每个slot上的DMRS占用的RE的个数为6，12，18，24，分为4类。
比如，根据一个slot中的DMRS占用的RE数进行分类，例如，总的占用RE数可以是4，6，8，12，16，18，24，可以划分为3类或者4类。
情形二：根据时域为1个时隙频域为1个RB下的CSI-RS/PTRS/TRS信息，确定可用RE的类型。
CSI-RS/PTRS/TRS与情形一中的DMRS的情况类似。在此不赘述。
情形三：不同的参考信号占用同一时隙时，也可以按照参考信号的类型对可用RE进行分类。比如，若时隙中只有DMRS为第一类，只有CSI-RS为第二类，同时有DMRS和CSI-RS为第三类等等。
情形四：根据时隙内的可用RE数对可用RE进行分类
比如一个PRB,一个时隙上可用的RE数可以为0～168。具体的比如0～32为第一类，33～64为第二类，65～128为第三类，129～168为第四类等等。
情形五：可以根据调度数据可用的符号数进行分类
比如一个PRB,一个时隙上可用的符号数可以为0～14。具体的比如0～4为第一类，5～8为第二类，9～12为第三类，13～14为第四类等等。
进一步的，通信设备根据数据调度的时频资源，具体包括时域资源和频域资源，与分类准则中的时频特征，具体包括符号特征、时隙特征、RB特征、RBG特征进行匹配，以确定可用RE的类型，确定出可用RE的类型之后，根据确定的可用RE的类型得到该类型下的TBS值。
例如，终端在计算TBS时，时域上针对分类准则二下的时隙的个数乘以频域上针对分类准则二下的RB的个数乘以该类型下的TBS值，得到数据调度的TBS大小。
需要说明的是，不同类型之间可以进行比例的相互转化。
分类准则三：是根据时域为1个符号频域为1个RBG下的符号特征和/或RBG特征确定可用RE的类型。
情形一，针对每个RBG下的CSI-RS信息对可用RE进行分类：
针对每个RBG上的CSI-RS的情况，可以进行可用RE的类型划分，图5a～图5c给出了示意图。
例如，针对每个RB上CSI-RS占用的RE相同，可以进行可用RE的类型划分如图5a所示。
例如，针对奇数编号和偶数编号的CSI-RS占用的RE不同，间隔1个RB发送，可以进行可用RE的类型划分，如图5b所示。
例如，针对模3的RB编号不同下CSI-RS占用的RE不同，间隔2个RB发送，可以进行可用RE的类型划分，如图5c所示。
进一步的，确定出可用RE的类型之后，根据确定的可用RE的类型得到该类型下的TBS值。
例如，终端在计算TBS时，时域上针对分类准则三下的符号的个数乘以频域上针对分类准则三下的RBG的个数乘以该类型下的TBS值，得到数据调度的TBS大小。
需要说明的是，不同类型之间可以进行比例的相互转化。
分类准则四：是根据时域为1个时隙频域为1个RBG下的时隙特征和/或RBG特征确定可用RE的类型。
结合上述分类准则三和分类准则二很容易确定分类准则四，在此不再赘述。
以上分类准则针对的都是单个时域调度单位和单个频域调度单位内的时域特征和/或频域特征的分类准则，根据上述例子，很容易推断多个时域调度单位和多个频域调度单位内的时域特征和/或频域特征的分类准则，在此不再赘述。
分类准则五：根据数据调度的业务类型，确定数据调度的可用RE的类型。
针对不同的业务类型，比如移动宽带业务(eMBB)，高可靠低延时业务(URLLC)，视频业务，语音业务，小包业务，实时业务等，可以采用不同的RE类型和/或不同的比例因子和/或不同的TBS表格和/或不同的TBS的确定方法。即不同的业务类型可以对应不同的RE类型和/或不同的比例因子和/或不同的TBS表格和/或不同TBS的确定方法和/或第一可用RE数和/或第二可用RE数。考虑到不同业务的特征，可以更准确的确定符合不同业务需求的TBS的取值，提高数据传输的性能。
URLLC可以是小包业务，数据调度的传输时间可以是1个或者几个符号，因此RE类型的划分需要更加精细，TBS的取值范围比较小，主要是针对小包业务，因此TBS的取值的间隔可以比较小。URLLC业务要求高可靠低延时，所以传输的码率可以比较低。
eMBB可以是指大包业务，数据调度传输时间可以是一个时隙或者多个时隙，因此RE类型的划分可以相对粗略，TBS的取值范围比较大，因此TBS的取值的间隔可以比较大。
可选的，不同业务要求的码率可能不同，比如eMBB业务要求码率可以很小也可以很大，URLLC业务要求码率较小。因此不同的业务可以有不同的调制和编码方案(modulation and Coding scheme,MCS)的表格。比如eMBB业务的MCS表格可以码率个数较多，码率 取值可以从小到大，MCS的标识比较多，而URLLC业务的MCS表格可以码率较小或者码率个数较少，MCS的标识比较少。MCS表格可以用于指示调制方式以及TBS的标识，也可以用于指示调制方式和码率信息，或者，MCS表格也可以是包括两个表格，一个表格用于指示调制方式，一个表格用于指示码率信息。
具体的，以MCS表格用于指示调制方式和码率信息为例，说明不同业务可以对应不同的MCS表格，如下所示：
表3为用于URLLC业务传输的MCS表格。表4为用于eMBB业务的传输的MCS表格。
表3
Figure PCTCN2018089371-appb-000007
表4
Figure PCTCN2018089371-appb-000008
设置不同的业务有不同的MCS表格，可以降低MCS的信令开销。比如针对URLLC业务，码率和/或调制方式和/或TBS取值个数较少时，可以设计较小的MCS表格，基站在通知终端MCS时可以采用较小的比特信息，比如表3，可以用4个比特表示。而针对eMBB业务，码率和/或调制方式和/或TBS取值个数较多时，可以设计较大的MCS表格，基站在通知终端MCS时可以采用的比特信息比较多，比如表4，可以用5个比特表示。相比于不同的业务采用同一个MCS表格，则针对不同的业务都需要采用5个比特表示，信令开销较大。
可选的，不同的业务类型采用不同的可用RE的分类准则，比如eMBB采用1个时隙一个RB的分类准则，URLLC采用一个符号一个RB的分类准则，等等。
可选的，不同的业务类型采用不同的比例因子的取值，比如eMBB可以是1，1/2，1/4中取值；URLLC可以是1，1/2，1/3，1/4，2/3，3/4中取值。
可选的，不同的业务类型采用不同的TBS表格，比如eMBB是根据RE数为120制定的TBS表格，而URLLC是根据RE数为60制定的TBS表格。不同TBS表格中包括的码率可以是不同的。
比如，eMBB同样的调制方式下可以包括4种码率，对应的比例因子分别是1/2，1/3，2/3，4/5等等，URLLC同样的调制方式下可以包括4种或者多种码率，对应的比例因子分别是1/2，1/3，1/4，2/5或更多等等。
另外，可选的，TBS的确定方法可以是不同的可用RE数可以对应相同的TBS的取值。不同的可用RE数对应相同TBS的取值的方法，可以是通过规定可用RE数的取值间隔或者取值范围与TBS取值的对应关系来具体确定。比如取值间隔或者取值范围为N，则在取值间隔为N或者取值范围为N的可用RE数对应相同的TBS的取值。具体的，可以是取值间隔为N的可用RE数对应相同的TBS表格或者TBS表格中的TBS取值或者计算公式中的第一可用RE数或者第二可用RE数或者对应相同的比例因子等。本申请中在此不作限定。
N的取值可以是针对时域为X1个符号频域为Y1个RB下的可用RE定义的；或是针对时域为X2个符号频域为Y2个资源块组RBG下的可用RE定义的；或是针对时域为X3个时隙频域为Y3个资源块RB下的可用RE定义的；或是针对时域为X4个时隙频域为Y4个RBG下的可用RE定义的；或是针对整个数据调度的可用RE的数目定义的，其中X1，X2，X3，X4，Y1，Y2，Y3和Y4为正整数。N的具体的定义方法可以是预定义的，也可以是基站通过信令告知终端的，比如通过高层信令或者物理层信令，本申请中在此不作限定。
可选的，根据N的取值确定对应的TBS取值的对应关系时，可以是与该间隔中的最小的RE数的TBS取值相同，也可以是与该间隔中的最大的RE数的TBS取值相同，或可以是与该间隔中的默认的某个RE数的TBS取值相同。具体的确定方法可以是预定义的，也可以是基站通过信令告知终端的，具体的，本申请中在此不做限定。信令可以是高层信令或者物理层信令等。
可选的，根据N的取值确定对应的TBS取值的对应关系时，可以是预先默认某个或者某些RE数下的TBS取值。在根据其他的RE数确定TBS取值时，可以是与默认某个或者某些RE数最接近的该RE数采用相同的TBS取值。具体的确定方法可以是预定义的，也可以是基站通过信令告知终端的，具体的，在此不做限定。信令可以是高层信令或者物理层信令等。
举例来说，以取值间隔为N对应的TBS表格中的TBS取值的对应关系为例，如果规定了N的取值为4，则可用RE数间隔或者范围在4以内的都对应同一个TBS取值。比如，如果规定了可用RE数为4对应的TBS取值为A，可用RE数为8对应的TBS取值为B，可用RE数为12对应的TBS取值为C，则当可用RE数为3时，此时对应TBS的取值为A；当可用RE数为2时，也对应TBS的取值为A；当可用RE数为1时，也对应TBS的取值为A；当可用RE数为5时，可以是对应TBS的取值为A，也可以是对应TBS的取值为B；当可用RE数为6时，可以是对应TBS的取值为A，也可以是对应TBS的取值为B；当可用RE数为7时，可以是对应TBS的取值为B；当可用RE数为9时，可以是对应TBS 的取值为B，也可以是对应TBS的取值为C；当可用RE数为10时，可以是对应TBS的取值为B，也可以是对应TBS的取值为C；当可用RE数为11时，可以是对应TBS的取值为C；也可以有其他的对应情况，具体不做限定。可选的，不同的可用RE数对应相同TBS的取值的方法，可以是通过规定可用RE数的划分区间与TBS的取值的对应关系来确定。划分区间可以包括一个或者多个区间，每个区间对应一个TBS的取值。具体的可以是区间内的可用RE数对应相同的TBS表格或者TBS表格中的TBS取值或者计算公式中的第一可用RE数或者第二可用RE数或者对应相同的比例因子等。具体的在此不作限定。具体的区间的划分方法可以是预定义的，也可以是基站通过信令告知终端的，具体的在此不做限定。信令可以是高层信令或者物理层信令等。
可选的，每个划分区间包括一个或者多个可用RE数。
举例来说，以可用RE数的划分区间与TBS表格中的TBS取值的对应关系为例，如果划分了3个区间，比如区间1为0到4，区间2为5到8，区间3为9到12，则区间内的可用RE数都对应TBS表格中的同一个TBS取值。比如，如果规定了区间1对应的TBS取值为A，区间2对应的TBS取值为B，区间3对应的TBS取值为C，则当可用RE数为3时，可以对应TBS的取值为A；当可用RE数为2时，也对应TBS的取值为A；当可用RE数为1时，也对应TBS的取值为A；当可用RE数为5时，可以是对应TBS的取值为B；当可用RE数为6时，可以是对应TBS的取值为B；当可用RE数为7时，可以是对应TBS的取值为B；当可用RE数为9时，可以是对应TBS的取值为C；当可用RE数为10时，可以是对应TBS的取值为C；当可用RE数为11时，可以是对应TBS的取值为C；也可以有其他的对应情况，具体不做限定。
具体的N的取值或者区间的划分可以是预定义的，也可以是基站通过信令告知终端的，比如通过高层信令或者物理层信令，具体的在此不作限定。高层信令可以是无线资源控制(Radio Resource Control，RRC)信令或者媒体接入控制(Medium Access Control，MAC)控制元素(Control Eelement，CE)或者其他信令，具体的在此不做限定。物理层信令可以是下行控制信息等。可选的，针对上述所有实施例，在根据RE的个数进行可用RE的类型的划分时也可以采用上述可用RE数的取值间隔或者取值范围或者对可用RE数的划分区间与TBS的对应关系的方式，比如可以根据RE数的取值间隔或者取值范围或者RE数的划分区间与可用RE的类型的对应关系，具体的在此不做限定。
通过对于可用RE数或者RE数进行取值间隔或者取值范围或者划分区间的规定，可以将多个可用RE数或者RE数对应相同的TBS的取值或者对应相同的可用RE的类型，可以避免TBS的取值过多的问题。因为TBS的取值没有必要精确到每个RE，通过TBS的取值过多会导致系统复杂度提高，也会有TBS异常值的情况，导致数据传输性能下降。
可选的，针对上述所有实施例，在TBS的取值的确定时如果没有考虑传输层数，则默认传输层数是一。当数据调度的一个传输块是通过多个传输层传输时，TBS的取值需要考虑传输层数的影响，具体的比如可以参考现有技术或者其他的方式，在此不作限定。
基于上述实施例，参阅图6所示，本申请实施例提供一种通信装置600，该装置600可以为单独的网元，可以为终端或基站，也可为对应网元中的功能模块，该装置600的结构中包括：第一确定单元610和第二确定单元620，其中：
第一确定单元610，用于确定数据调度的可用资源元素RE的类型；
第二确定单元620，用于根据所述可用RE的类型确定数据的传输块大小。
可选的，所述第一确定单元610在确定数据调度的可用RE的类型时，具体用于：
确定可用RE的分类准则，根据所述可用RE的分类准则，确定数据调度的可用RE的类型，所述分类准则是根据时域为X1个符号频域为Y1个RB下的符号特征和/或RB特征确定的；或所述分类准则是根据时域为X2个符号频域为Y2个资源块组RBG下的符号特征和/或RBG特征确定的；或所述分类准则是根据时域为X3个时隙频域为Y3个资源块RB下的时隙特征和/或RB特征确定的；或所述分类准则是根据时域为X4个时隙频域为Y4个RBG下的时隙特征和/或RBG特征确定的；或所述分类准则为数据调度的可用RE的数目，其中X1，X2，X3，X4，Y1，Y2，Y3和Y4为正整数。
可选的，所述符号特征包括符号内存在的参考信号信息和符号内可用的RE数中至少一项；
所述RB特征包括RB内存在的参考信号信息和RB内可用的RE数中至少一项；
所述时隙特征包括时隙内存在的参考信号信息和时隙内可用的RE数和时隙内可用的符号数中至少一项；
所述RBG特征包括RBG内存在的参考信号信息和RBG内可用的RE数和RBG内可用的RB数中至少一项。
可选的，所述参考信号信息包括：是否存在所述参考信号、所述参考信号的天线端口数、所述参考信号占用的RE数中的至少一项。
可选的，所述装置600为终端时，所述装置还包括接收单元630，用于接收基站发送的第一信令，所述第一信令用于指示所述可用RE的分类准则；所述第一确定单元610具体用于：确定预定义的可用RE的分类准则；
所述装置600为基站时，所述第一确定单元610具体用于：确定预定义的可用RE的分类准则或根据数据调度的业务特征配置可用RE的分类准则。
可选的，所述第一确定单元610在根据所述可用RE的分类准则，确定数据调度的可用RE的类型时，具体用于：
根据所述可用RE的分类准则、所述数据调度的时频资源，确定数据调度的可用RE的类型。
可选的，所述第一确定单元610在确定数据调度的可用RE的类型时，具体用于：
确定数据调度所属的业务类型，根据所述业务类型确定数据调度的可用RE的类型，其中，不同的业务类型对应不同的可用RE的类型。
可选的，所述第二确定单元620在根据所述可用RE的类型确定数据的传输块大小时，具体用于：
根据所述可用RE的类型，确定所述可用RE的类型对应的传输块大小的表格，基于所述传输块大小的表格确定所述数据的传输块大小；或
根据所述可用RE的类型，以及可用RE的类型与传输块大小的对应关系，确定所述数据的传输块大小；或
确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述装置600的调制方式、码率、传输层数和第一可用RE数计算的，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的；或
确定所述可用RE的类型对应的第二可用RE数，利用所述装置600的调制方式、码 率、传输层数和第二可用RE数计算得到所述数据的传输块大小。
本申请实施例中，第一确定单元610和第二确定单元620a可以由处理器实现，接收单元630可以由收发器或通信接口实现。
另外，图6所示的实施例提供的通信装置还可以通过其他形式实现。
在一个简单的实施例中，本领域的技术人员可以想到，还可以将图6所示的实施例提供的通信装置通过如图7所示的结构实现。
如图7所示，通信设备可以包括存储器701、处理器702、系统总线703以及通信接口704。其中，处理器702、存储器701以及通信接口704通过系统总线703连接。存储器701用于存储计算机执行指令，当该通信装置运行时，处理器702执行存储器701存储的计算机执行指令，以使该通信设备执行图3所示的实施例提供的传输块大小的确定方法。具体的传输块大小的确定方法可参考上文及附图中的相关描述，此处不再赘述。
其中，处理器702可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，或者一个或多个集成电路，用于执行相关操作，以实现本申请实施例所提供的技术方案。
可选的，图7所示的实施例提供的通信设备可以是FPGA，ASIC，系统芯片(system on chip，SoC)，CPU，网络处理器(network processor，NP)，数字信号处理电路(digital signal processor，DSP)，微控制器(micro controller unit，MCU)，还可以采用可编程控制器(programmable logic device，PLD)或其他集成芯片。
尽管图7所示的通信设备仅仅示出了存储器701、处理器702、系统总线703以及通信接口704，但是在具体实现过程中，本领域的技术人员应当明白，该通信设备还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该通信设备还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该通信设备也可仅仅包含实现本申请实施例所必须的器件或模块，而不必包含图7中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，上述的存储介质可为磁盘、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
本领域内的技术人员应明白，本申请实施例可提供为方法、系统、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的 功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (10)

  1. 一种传输块大小的确定方法，其特征在于，包括：
    通信设备根据一个时隙一个RB下的可用资源元素RE数确定数据调度的可用RE的类型；
    所述通信设备根据所述可用RE的类型确定数据的传输块大小。
  2. 根据权利要求1所述的方法，其特征在于，所述通信设备根据一个时隙一个RB下的可用资源元素RE数确定数据调度的可用RE的类型，包括：
    所述通信设备根据时域为一个时隙频域为一个RB下的DMRS所占的RE数确定可用RE的类型。
  3. 根据权利要求1或2所述的方法，其特征在于，所述通信设备根据所述可用RE的类型确定数据的传输块大小，包括：
    所述通信设备确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述通信设备的调制方式、码率、传输层数和第一可用RE数计算的，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的。
  4. 根据权利要求1或2所述的方法，其特征在于，所述通信设备根据所述可用RE的类型确定数据的传输块大小，包括：
    所述通信设备确定所述可用RE的类型对应的第二可用RE数，利用所述通信设备的调制方式、码率、传输层数和第二可用RE数计算得到所述数据的传输块大小。
  5. 根据权利要求3所述的方法，其特征在于，所述通信设备确定所述可用RE的类型对应的比例因子，包括：
    所述通信设备根据数据调度的业务类型确定所述比例因子。
  6. 一种通信装置，其特征在于，包括：
    存储器，用于存储计算机可执行程序代码；
    处理器，用于调用所述存储器中的程序代码，执行
    根据一个时隙一个RB下的可用资源元素RE数确定数据调度的可用RE的类型；
    根据所述可用RE的类型确定数据的传输块大小。
  7. 根据权利要求6所述的装置，其特征在于，所述处理器在根据一个时隙一个RB下的可用资源元素RE数确定数据调度的可用RE的类型时，具体用于：
    根据时域为一个时隙频域为一个RB下的DMRS所占的RE数确定可用RE的类型。
  8. 根据权利要求6或7所述的装置，其特征在于，所述处理器在根据所述可用RE的类型确定数据的传输块大小时，具体用于：
    确定所述可用RE的类型对应的比例因子，将所述比例因子乘以预设值，得到所述数据的传输块大小，所述预设值是根据预设的传输块大小的表格确定的或者是根据所述通信设备的调制方式、码率、传输层数和第一可用RE数计算的，所述第一可用RE数为预定义的或者根据数据调度的时频资源确定的。
  9. 根据权利要求6或7所述的装置，其特征在于，所述处理器在根据所述可用RE的类型确定数据的传输块大小时，具体用于：
    确定所述可用RE的类型对应的第二可用RE数，利用所述通信设备的调制方式、码 率、传输层数和第二可用RE数计算得到所述数据的传输块大小。
  10. 根据权利要求8所述的装置，其特征在于，所述处理器在确定所述可用RE的类型对应的比例因子时，具体用于：
    根据数据调度的业务类型确定所述比例因子。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020197734A1 (en) * 2019-03-22 2020-10-01 Qualcomm Incorporated Side link communications with slot aggregation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018230992A1 (ko) 2017-06-15 2018-12-20 삼성전자 주식회사 통신 또는 방송 시스템에서 채널 부호화 및 복호화를 수행하는 방법 및 장치
KR102414531B1 (ko) * 2017-06-15 2022-06-30 삼성전자 주식회사 통신 또는 방송 시스템에서 채널 부호화/복호화 방법 및 장치
CN111525979B (zh) * 2019-02-01 2022-09-30 中兴通讯股份有限公司 传输块大小确定方法、装置、通信设备及存储介质
CN111263454B (zh) * 2020-01-19 2023-04-07 展讯通信（上海）有限公司 传输块大小确定方法和终端设备
WO2021093174A1 (en) 2020-01-21 2021-05-20 Zte Corporation Method for determining transport block size
US20210352527A1 (en) * 2020-05-11 2021-11-11 Qualcomm Incorporated Scalable sizing of transport blocks for uplink transmissions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244628A (zh) * 2010-05-12 2011-11-16 中兴通讯股份有限公司 一种实现业务数据传输的方法和装置
CN102752874A (zh) * 2011-04-22 2012-10-24 中兴通讯股份有限公司 物理下行共享信道的调度方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101754970B1 (ko) * 2010-01-12 2017-07-06 삼성전자주식회사 무선 통신 시스템의 채널 상태 측정 기준신호 처리 장치 및 방법
JP5736446B2 (ja) * 2010-04-13 2015-06-17 エルジー エレクトロニクス インコーポレイティド ダウンリンク信号を受信する方法及びダウンリンク信号を受信する装置
CN101969360B (zh) * 2010-09-29 2015-12-16 中兴通讯股份有限公司 一种确定传输块大小的方法及系统
EP2503835A1 (en) * 2011-03-23 2012-09-26 Panasonic Corporation Resouce assignment for single and multiple cluster transmission
US9532337B2 (en) * 2012-05-19 2016-12-27 Google Technology Holdings LLC Method and apparatus for transport block signaling in a wireless communication system
US9094145B2 (en) * 2012-07-25 2015-07-28 Nec Laboratories America, Inc. Coordinated multipoint transmission and reception (CoMP)
US10123344B2 (en) * 2013-03-06 2018-11-06 Qualcomm Incorporated Methods and apparatus for multi-subframe scheduling
CN107431591B (zh) * 2015-01-28 2020-09-25 交互数字专利控股公司 用于无授权频带中的lte的上行链路操作的方法和装置
CN106685587B (zh) * 2015-11-06 2020-12-08 株式会社Kt 下行数据信道中调制阶数和传输块大小确定方法及其装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244628A (zh) * 2010-05-12 2011-11-16 中兴通讯股份有限公司 一种实现业务数据传输的方法和装置
CN102752874A (zh) * 2011-04-22 2012-10-24 中兴通讯股份有限公司 物理下行共享信道的调度方法及装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CMCC: "Discussion on TBS scaling design for PUSCH in UpPTS", 3GPP TSG RAN WG1 MEETING #87, no. R1-1612174, 18 November 2016 (2016-11-18), Reno, XP051190324 *
ERICSSON: "TBS scaling for short TTI", 3GPP TSG RAN WG1 MEETING #87, no. R1-1611528, 18 November 2016 (2016-11-18), Reno, XP051189126 *
HUAWEI; HISILICON: "TBS determination for short TTI", 3GPP TSG RAN WG1 MEETING #87, no. R1-1611877, 18 November 2016 (2016-11-18), Reno, XP051190219 *
See also references of EP3606236A4

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020197734A1 (en) * 2019-03-22 2020-10-01 Qualcomm Incorporated Side link communications with slot aggregation
CN113615118A (zh) * 2019-03-22 2021-11-05 高通股份有限公司 利用时隙聚合的侧行链路通信
US11375503B2 (en) 2019-03-22 2022-06-28 Qualcomm Incorporated Side link communications with slot aggregation
CN113615118B (zh) * 2019-03-22 2024-04-02 高通股份有限公司 利用时隙聚合的侧行链路通信

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