WO2018228579A1 - Procédé et appareil pour déterminer une taille de bloc de transport - Google Patents

Procédé et appareil pour déterminer une taille de bloc de transport Download PDF

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Publication number
WO2018228579A1
WO2018228579A1 PCT/CN2018/091692 CN2018091692W WO2018228579A1 WO 2018228579 A1 WO2018228579 A1 WO 2018228579A1 CN 2018091692 W CN2018091692 W CN 2018091692W WO 2018228579 A1 WO2018228579 A1 WO 2018228579A1
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WIPO (PCT)
Prior art keywords
tbs
time
mapping relationship
frequency resources
terminal device
Prior art date
Application number
PCT/CN2018/091692
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English (en)
Chinese (zh)
Inventor
吕永霞
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华为技术有限公司
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Publication date
Priority claimed from CN201710686578.0A external-priority patent/CN109152052B/zh
Priority to EP18817587.1A priority Critical patent/EP3468277B1/fr
Priority to CN201880039739.XA priority patent/CN110999464A/zh
Priority to JP2019566809A priority patent/JP6891979B2/ja
Priority to KR1020197038142A priority patent/KR102276760B1/ko
Priority to RU2019143451A priority patent/RU2737614C1/ru
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to AU2018284901A priority patent/AU2018284901B2/en
Priority to ES18817587T priority patent/ES2814624T3/es
Priority to BR112019026455-8A priority patent/BR112019026455B1/pt
Priority to EP20173784.8A priority patent/EP3780441B1/fr
Priority to US16/172,850 priority patent/US10447425B2/en
Publication of WO2018228579A1 publication Critical patent/WO2018228579A1/fr
Priority to US16/584,958 priority patent/US11575462B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems

Definitions

  • the present application relates to the field of communication data, and in particular, to a method and apparatus for determining a transport block size.
  • 5G wireless communication system also called the new air interface (new radio, NR) wireless communication system
  • 5G communication system will support a variety of business types, a variety of deployment scenarios And a wider spectrum range.
  • the 5G wireless communication system needs to support different requirements of different service types of services, and therefore has greater flexibility in resource scheduling, and the determination of the transport block size (TBS) in resource scheduling also needs to be more flexible.
  • TBS transport block size
  • the TBS determining process adopts the following steps:
  • Step 1 The terminal device determines a modulation order and a TBS index (TBS index, I_TBS) according to a modulation and coding scheme (MCS) index (index, I_MCS) and a protocol-predefined MCS mapping table.
  • TBS index I_TBS
  • MCS index index, I_MCS
  • Step 2 The terminal device determines the number of physical resource blocks (PRBs) allocated in the frequency domain (PRB number, N_PRB) according to the resource allocation information indicated by the network device.
  • PRBs physical resource blocks
  • Step 3 The terminal device searches for a corresponding TBS value in a predefined TBS table according to parameters such as I_TBS and N_PRB to determine a TBS carried by the data channel.
  • the basic assumption for determining the TBS is that the basic time unit of resource scheduling is one subframe (14 orthogonal frequency division multiplexing (OFDM) symbols), and the data channel in each PRB is available.
  • the number of resources is fixed, for example, 120 resource elements (REs).
  • REs resource elements
  • the flexibility of resource scheduling has changed a lot, and the number of available resources of data channels in each PRB varies greatly.
  • the scheduling time and the frequency domain range supported by the 5G wireless communication system are extremely large. Therefore, the determination mode of the TBS along the data channel of the LTE system is inflexible and the scalability is poor.
  • the embodiments of the present application provide a method and an apparatus for determining a transport block size, which can enhance the flexibility of determining a transport block size.
  • the first aspect provides a method of determining the size of a transport block.
  • the terminal device receives control information sent by the network device, where the control information includes resource information indicating the information and the data channel.
  • the terminal device determines a modulation mode and a coding rate according to the first mapping relationship set and the indication information, and determines the number of time-frequency resources according to the resource information of the data channel.
  • the first mapping relationship set includes a correspondence relationship between the indication information and a combination of the modulation mode and the coding rate.
  • the terminal device determines the first transport block size TBS according to the modulation mode, the coding rate, and the number of the time-frequency resources.
  • the terminal device sends the data channel on the time-frequency resource based on the first TBS based on the data channel or the terminal device carried on the first TBS decoding time-frequency resource.
  • the second aspect provides a method of determining a transport block size, which may include:
  • the network device determines a modulation mode and a coding rate, and determines indication information according to the combination of the modulation mode and the coding rate and the first mapping relationship set, where the first mapping relationship includes the indication information and the modulation Correspondence between the mode and the combination of the coding rates;
  • the network device sends control information to the terminal device, where the control information includes the indication information and resource information of the data channel, where the resource information is used to determine the number of time-frequency resources;
  • the network device sends the data channel on the time-frequency resource based on the first TBS based on the first TBS decoding the data channel carried on the time-frequency resource or the network device.
  • the terminal device may determine the modulation mode and the coding rate from the first mapping relationship according to the control information sent by the network device, and determine the number of the time-frequency resources according to the control information, where the time-frequency resource is The time-frequency resource of the data channel is transmitted or received, that is, the time-frequency resource actually occupied by the data channel, and the TBS of the data channel can be determined.
  • the TBS determined according to the time-frequency resource actually occupied by the data channel is more matched with the target coding rate of the data channel, which improves the accuracy of the TBS.
  • the target coding rate here is the coding rate that the network device expects the data channel to reach, and the above coding rate is the coding rate actually used by the data channel.
  • the TBS is determined according to the modulation mode, the coding rate, and the number of time-frequency resources, it can be determined in the same manner regardless of the number of resources scheduled and regardless of other overhead resources in the scheduled resources.
  • the accurate TBS therefore, the TBS determination mode can be applied to various scheduling scenarios, so the TBS determination mode has high flexibility and good scalability.
  • the time-frequency resources allocated to the terminal device are not too small, so that the possibility of retransmission can be reduced when the data channel is received or the data channel is received, and the time-frequency resources allocated to the terminal device are further allocated. Not too much, avoiding the waste of resources.
  • the terminal device or the network device first determines a transport block size TBS according to the modulation mode, the coding rate, and the number of the time-frequency resources, including:
  • the terminal device or the network device determines the first TBS according to the modulation mode, the coding rate, the number of the time-frequency resources, and the number of transmission layers:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • K is a positive integer
  • the N_TEMP may be the number of time-frequency resources available for the data channel; N is the number of time-frequency resources available for the quantized data channel, and N is used to calculate the first TBS, and/or the second TBS, and details are not described herein.
  • the first TBS may be obtained by looking up the table according to the number N of time-frequency resources available for the data channel, the number of transmission layers v supported by the data channel, and the modulation mode.
  • the table obtains the number of bits L carried on the unit resource, and further the number of bits L carried on the unit resource, and the time-frequency resources available for the data channel.
  • the ratio of the number N to the number of resources included in the unit resource is multiplied to obtain the first TBS.
  • the number of bits L of the single-layer transmission bearer is obtained, and the number of bits L of the single-layer transmission bearer and the transport layer supported by the data channel are further selected.
  • the number v is multiplied to get the first TBS.
  • the number of bits L of the single-layer transmission bearer on the unit resource may be obtained according to the modulation mode, and the number of bits of the single-layer transmission bearer on the unit resource, and the number of time-frequency resources available for the data channel are N.
  • the ratio of the number of resources included in the unit resource to the number of transmission layers v supported by the data channel is multiplied to obtain the first TBS.
  • the embodiment of the present application can determine the TBS by using a formula calculation method, combining the modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers supported by the data channel, and the TBS has higher determination efficiency. Further, the rate of the present application can determine the TBS without looking up the table, so there is no need to design the TBS table, which reduces the implementation complexity of the determination of the TBS, and the applicability is higher.
  • the embodiment of the present application may also refer to the corresponding TBS table according to the above formula, but the value obtained by looking up the table satisfies the above formula, so that the accuracy of the TBS can be improved.
  • the terminal device or the network device may determine the second TBS according to the modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers, and determine the first TBS according to the second TBS:
  • the first TBS is satisfied: when the second TBS is greater than the first reference threshold, the first TBS is equal to the second TBS.
  • the embodiment of the present application introduces a second TBS before determining the final first TBS.
  • the terminal device or the network device may determine the second TBS according to the modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • the second TBS may be obtained by looking up the table according to the number N of time-frequency resources available for the data channel, the number of transmission layers v supported by the data channel, and the modulation mode.
  • the table obtains the number of bits L carried on the unit resource, and further the number of bits L carried on the unit resource, and the time-frequency resources available for the data channel.
  • the ratio of the number N to the number of resources included in the unit resource is multiplied to obtain the second TBS.
  • the number of bits L of the single-layer transmission bearer is obtained, and the number of bits L of the single-layer transmission bearer and the transport layer supported by the data channel are further selected.
  • the number v is multiplied to get the second TBS.
  • the number of bits L of the single-layer transmission bearer on the unit resource may be obtained according to the modulation mode, and the number of bits of the single-layer transmission bearer on the unit resource, and the number of time-frequency resources available for the data channel are N.
  • the ratio of the number of resources included in the unit resource to the number of transmission layers v supported by the data channel is multiplied to obtain the second TBS.
  • the terminal device or the network device obtains the second TBS according to parameters such as a modulation mode, a coding rate, a number of time-frequency resources, and a number of transmission layers, and then compares the second TBS with the first reference threshold. If the second TBS is greater than the first reference threshold, the second TBS may be used as the final required TBS, that is, the first TBS.
  • an element ie, the first element
  • the terminal device or the network device obtains the second TBS according to parameters such as a modulation mode, a coding rate, a number of time-frequency resources, and a number of transmission layers, and then compares the second TBS with the first reference threshold. If the second TBS is greater than the first reference threshold, the second TBS may be used as the final required TBS, that is, the first TBS.
  • an element ie, the first element
  • the first element may be determined from the first set of values as a final The required TBS, the first TBS.
  • the embodiment of the present application obtains the determining manner of the first TBS by comparing the second TBS with the first reference threshold, so that the transmission of small data packets (or small packets), especially special data packets, is more efficient, and also makes large data.
  • the TBS is determined to be more flexible in packet transmission, more applicable and more scalable.
  • the special data packet may include an internet protocol voice VOIP packet, a media access control MAC element CE packet, and an enhanced voice service codec EVS codec packet.
  • the first reference threshold is greater than or equal to a maximum VOIP packet size, or a maximum MAC CE packet size.
  • the first set of values includes at least a VOIP packet size, and/or a MAC CE packet size.
  • the first set of values includes at least one of 8, 16, 24, 32, 40, 56, 72, 88, 104, 120, 136, 144, 152, 176, 208, 224, 256, 280, 288, 296, 328, 336, 344, 376, 392, 408, 424, 440, 456, 472, 488, 504, 520, 536.
  • the first element is an element that is less than or equal to the second TBS and the absolute value of the difference between the second TBS and the second TBS is the smallest;
  • the first element is an element in the first set of values that is greater than or equal to the second TBS and has a smallest absolute value of a difference from the second TBS;
  • the first element is an element that has the smallest absolute value of the difference between the first value set and the second TBS.
  • An embodiment of the present application defines a value set according to the size of the VOIP packet or the size of the MAC CE packet.
  • the element included in the value set may be the size of the VOIP packet or the size of the MAC CE packet.
  • the embodiment of the present application may also directly provide some values, and represent the values by an array or a set to obtain a set of values.
  • the data may also be the size of the existing VOIP packet or the size of the MAC CE packet, or the size of the extended VOIP packet or the size of the MAC CE packet, or the size of the VOIP packet and the size of the MAC CE packet. Some values inserted outside the value.
  • the first reference threshold is set according to the size of the VOIP packet or the MAC CE packet
  • the first TBS is determined by comparing the first reference threshold with the size of the second TBS, so that the packet, especially the special packet, is determined.
  • the transmission is more efficient, and the TBS is more flexible and more adaptable when transmitting large packets.
  • an element may be selected from the first set of values as the first TBS, so that the transmission of the packet, particularly the special packet, is more efficient.
  • the second TBS is determined to be the first TBS, so that the TBS is determined to be more flexible in the transmission of the large packet, and the applicability is stronger and the scalability is stronger.
  • the terminal device or the network device may determine the second TBS according to the modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers, and determine the first TBS according to the second TBS:
  • the first TBS meets:
  • the first TBS is the second element in the first set of values .
  • the first TBS is equal to the second TBS.
  • the second reference threshold is a predefined value, or the second reference threshold is a product of the second reference element and a predefined coefficient.
  • the second TBS is first calculated with the elements included in the first set of values, and the absolute values of the calculated differences are sequentially compared with the second reference. Threshold comparison, determining one element in the first set of values as the first TBS according to the comparison result.
  • the determining manner of the first TBS may include the first mode and the second mode. In the first mode, when the absolute value of the difference between the second TBS and the second element in the first set of values is greater than the element of the second reference threshold, the second TBS may be determined as the first TBS, so that the data is large.
  • the TBS is determined to be more flexible in packet transmission, more applicable and more scalable.
  • Manner 2 determining an element (ie, a second element) whose absolute value of the difference between the first value set and the second TBS is less than or equal to the second reference threshold as the first TBS, so that the small data packet (or the small packet) ), especially the transmission of special data packets is more efficient.
  • the resource information indicates a time-frequency resource allocated by the network device to the terminal device, where the number of the time-frequency resources is removed from the time-frequency resource indicated by the resource information, and the specified time-frequency resource is removed. Remaining time-frequency resources.
  • determining the number of time-frequency resources according to the resource information of the data channel includes:
  • the terminal device Determining, by the terminal device, the number of the time-frequency resources according to the resource information and the specified time-frequency resource, where the time-frequency resource includes a time-frequency resource indicated by the resource information, and removing the remaining time-frequency resource Time-frequency resources.
  • the specified time-frequency resource may include: a time-frequency resource occupied by the demodulation reference signal DMRS corresponding to the data channel, and a channel quality measurement reference signal sent by the network device in the time-frequency resource indicated by the resource information One or more of the time-frequency resources occupied by the CSI-RS and the time-frequency resources reserved by the network device.
  • the time-frequency resource reserved by the network device may include: the time-frequency resource reserved by the network device may include a pre-configured signal of the network device or a time-frequency resource occupied by the channel, for example, a primary synchronization signal (primary synchronization signal) , PSS), secondary synchronization signal (SSS) or physical broadcast channel (PBCH) and other time-frequency resources.
  • a primary synchronization signal primary synchronization signal
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • the embodiment of the present application may indicate the resource information of the data channel by using the control information, and the terminal device determines the time-frequency resource available for the data channel according to the time-frequency resource and the fixed overhead time-frequency resource indicated by the resource information, so that the time-frequency resource of the data channel is available.
  • the method of determining the number is more flexible, and the determined number of time-frequency resources is more accurate, thereby improving the accuracy of determining the TBS.
  • the first mapping relationship set is a default mapping relationship set in multiple mapping relationship sets.
  • the method further includes: the terminal device receiving the configuration information sent by the network device.
  • the method further includes: the network device sending the configuration information to the terminal device.
  • the configuration information indicates the first mapping relationship set, and the first mapping relationship set is one of a plurality of mapping relationship sets.
  • a mapping relationship set can correspond to a table.
  • Each mapping relationship set may include a combination of one or more modulation modes and coding rates, and each combination may correspond to one indication information. Further, the indication information may be an index.
  • the embodiment of the present application may configure or define multiple mapping relationship sets, and each mapping relationship set may be applicable to a service of a terminal device, so that the terminal device or the network device may select different mapping table relationships according to different services, and further The service of the terminal device can be better adapted.
  • the multiple mapping relationship sets are not only related to the service, but may also be related to other information, which is not limited in this application. In this way, when using multiple mapping relationship sets, the terminal device or the network device may also determine according to other information, or select a default mapping relationship set.
  • control information further includes mapping relationship set indication information, where the mapping relationship set indication information indicates the first mapping relationship set, and the first mapping relationship set is one of a plurality of mapping relationship sets.
  • the format of the control information indicates the first mapping relationship set, where the first mapping relationship set is one of multiple mapping relationship sets.
  • the type of information carried by the data channel indicated by the control information indicates the first mapping relationship set, where the first mapping relationship set is one of multiple mapping relationship sets.
  • the embodiment of the present application can indicate a mapping relationship set applicable to the terminal device by using control information or configuration information, and can dynamically adapt multiple flexible resource allocation scenarios, and the applicability is higher.
  • control information includes precoding indication information, where the precoding indication information indicates a number of transmission layers supported by the data channel.
  • the method before determining, by the terminal device, the transport block size TBS according to the modulation mode, the coding rate, and the number of the time-frequency resources, the method further includes: the terminal device according to the pre-included in the control information
  • the coding indication information determines the number of transmission layers supported by the data channel.
  • the method before the determining, by the terminal device, the transport block size TBS, according to the modulation mode, the coding rate, and the number of the time-frequency resources, the method further includes:
  • the terminal device determines a number of transmission layers supported by the data channel according to a transmission mode corresponding to the data channel.
  • the method further includes: the network device according to the data channel corresponding to the transmission The mode determines the number of transport layers supported by the data channel.
  • the embodiment of the present application can determine the number of transmission layers supported by the data channel in multiple manners, and the method for determining the number of transmission layers supported by the data channel is more flexible, and can better adapt to various resource allocation scenarios.
  • a third aspect provides a terminal device, which can include: a transceiver unit and a processing unit.
  • the transceiver unit and the processing unit can perform the functions of the terminal device in the above first aspect and the above optional embodiments.
  • a fourth aspect provides a network device, which can include: a transceiver unit and a processing unit.
  • the transceiver unit and the processing unit can perform the functions of the network device in the second aspect and the foregoing optional embodiments.
  • a fifth aspect provides a terminal device, which can include a processor, a memory, and a transceiver.
  • the memory and the transceiver are connected to the processor;
  • the memory is for storing a set of program codes
  • the processor and the transceiver are configured to invoke program code stored in the memory to perform the method provided by the first aspect above.
  • a sixth aspect provides a network device, which can include: a processor, a memory, and a transceiver;
  • the memory and the transceiver are connected to the processor;
  • the memory is for storing a set of program codes
  • the processor and the transceiver are configured to invoke program code stored in the memory to perform the method provided by the second aspect above.
  • a seventh aspect provides a communication system, comprising the terminal device provided by the above third aspect and the network device provided by the above fourth aspect.
  • the eighth aspect provides a computer storage medium for storing a computer software command for use in the above terminal device, comprising a program designed to perform the above aspects.
  • a ninth aspect provides a computer storage medium for storing computer software instructions for use in the network device described above, comprising a program designed to perform the above aspects.
  • the tenth aspect provides a chip, which is coupled to a transceiver in a network device, and is used to implement the technical solution of the second aspect of the embodiment of the present application.
  • "coupled” in the context of the present application means that the two components are combined directly or indirectly with each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • the eleventh aspect provides a chip, which is coupled to a transceiver in the terminal device for performing the technical solution of the first aspect of the embodiment of the present application.
  • "coupled” in the context of the present application means that the two components are combined directly or indirectly with each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • FIG. 2 is a schematic diagram of an embodiment of a method for determining a transport block size according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the method and apparatus for determining the transport block size provided by the embodiments of the present application may be applicable to a 5G communication system, and may also be applicable to an LTE system, or other wireless communication systems using various radio access technologies.
  • code division multiple access CDMA
  • frequency division multiple access FDMA
  • time division multiple access TDMA
  • orthogonal frequency division multiple access orthogonal frequency Division multiple access
  • SC-FDMA single carrier-frequency division multiple access
  • FIG. 1 it is an infrastructure of a communication system provided by an embodiment of the present application.
  • the communication system provided by the embodiment of the present application may include a network device and a terminal device, and the network device and the terminal device may perform data or signaling transmission through the wireless interface, including uplink transmission and downlink transmission.
  • a terminal device is a device with wireless transceiver capability that can be deployed on land, indoors or outdoors, handheld or on-board; it can also be deployed on the water (such as ships); it can also be deployed in the air (such as airplanes, balloons, and Satellite, etc.).
  • the terminal device can be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and an industrial control (industrial control).
  • Wireless terminal wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transport safety Wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the network device involved in the embodiment of the present application is a device deployed in a radio access network (RAN) to provide a wireless communication function for a terminal device.
  • the foregoing network device may be a base station, and may include various forms of a macro base station, a micro base station, a relay station, an access point base station controller, a transmission and reception node (TRP), and the like.
  • TRP transmission and reception node
  • the specific name of the base station may be different.
  • an evolved NodeB (eNB) may be used in a subsequent evolved system. It is called new radio node B (gNB).
  • gNB new radio node B
  • the devices mentioned above are collectively referred to as network devices.
  • the 5G communication system is dedicated to supporting higher system performance, which will support multiple service types, different deployment scenarios and a wider spectrum range.
  • the above various service types include enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low latency communications (URLLC), multimedia. Broadcast broadcast service (MBMS) and location services.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC ultra-reliable and low latency communications
  • MBMS Broadcast broadcast service
  • the different deployment scenarios mentioned above may include indoor hotspots, dense urban areas, suburbs, urban macros and high-speed rail scenes.
  • the broader spectrum range described above means that the 5G wireless communication system will support a spectrum range of up to 100 GHz, including both low frequency parts below 6 GHz and high frequency parts up to 100 GHz above 6 GHz.
  • a major feature of the 5G communication system compared to the fourth generation mobile communication technology (4th generation, 4G) communication system is the addition of support for URLLC.
  • URLLC services There are many types of URLLC services, including typical industrial applications, industrial production process automation, human-computer interaction and telemedicine.
  • 3GPP 3rd Generation Partnership Project
  • RAN Working Group 3rd Generation Partnership Project
  • RAN1 Working Group for URLLC services Performance indicators (including latency, reliability, and system capacity) are defined as follows:
  • the user application layer data packet arrives at the receiving end wireless protocol stack layer 2 and/or the wireless protocol layer 3 from the service side wireless protocol stack layer 2 and/or the service data unit (SDU) of the wireless protocol layer 3.
  • the user plane delay requirement of the URLLC service is 0.5 ms for both uplink and downlink transmission.
  • the above delay requirement is only applicable to scenarios where the network device and the terminal device are not in a discontinuous reception (DRX) state.
  • the above performance requirement of 0.5 ms refers to the average delay of the data packet, and is not bound to the reliability requirement in the performance index of the URLLC service.
  • ⁇ Reliability Under a given channel quality condition, the probability of successfully transmitting a certain amount (assumed to be X bits) of data within a certain transmission time (assumed to be L seconds) during data transmission from the sender to the receiver .
  • the above transmission time is still defined as the transmission time required by the user application layer data packet from the SDU of the transmitting end wireless protocol stack layer 2 and/or the wireless protocol layer 3 to the SDU of the receiving end wireless protocol stack layer 2 and/or the wireless protocol layer 3. .
  • a typical requirement is to achieve 99.999% reliability in 1ms.
  • the foregoing performance indicators are only typical values.
  • the URLLC service in different application scenarios may have different requirements for reliability. For example, in some extremely demanding industrial control services, the delay from the sender to the receiver needs to be within 0.25 ms and the reliability of data transmission reaches 99.9999999%.
  • ⁇ System capacity The maximum throughput of the system that the system can achieve under the premise of satisfying a certain percentage of interrupted users.
  • the above-mentioned interrupted user refers to a user who cannot satisfy the reliability requirement within a certain time delay range, that is, the reliability within a certain delay range required by some users, and the system cannot be satisfied, and this part of the user can be called Interrupt the user.
  • the 5G communication system needs to support the requirements of different performance indicators of multiple services. Therefore, the resource scheduling of the 5G communication system needs to be more flexible. The flexibility of data transmission in the more flexible resource scheduling mode is also higher. Therefore, the method of determining the TBS of data transmission needs to be more flexible.
  • the embodiment of the present application provides a method and an apparatus for determining a TBS, which can be applied to a more flexible resource scheduling manner, and can meet the requirements of more diverse service performance indicators.
  • FIG. 2 is a schematic diagram of an embodiment of a method for determining a TBS provided by an embodiment of the present application.
  • the method provided by the embodiment of the present application may include the following steps:
  • the network device determines a modulation mode and a coding rate, and determines indication information according to the combination of the modulation mode and the coding rate and the first mapping relationship set.
  • a terminal device can support one or more services, such as one or more of a URLLC service, an eMBB service, and a mMTC service.
  • a URLLC service such as one or more of a URLLC service, an eMBB service, and a mMTC service.
  • a service supported by the terminal device may correspond to a mapping relationship set, and a mapping relationship set may be embodied as a table, as shown in Table 1 or Table 2 below.
  • Table 1 is a schematic table of the mapping relationship set between the modulation mode and the coding rate.
  • Table 2 is another schematic table of the mapping relationship set between the modulation mode and the coding rate.
  • the mapping relationship set shown in Table 2 may be set as the mapping relationship set 2.
  • each mapping relationship set may include a combination of one or more modulation modes and coding rates, and each combination may correspond to one indication information.
  • mapping relationship set may also be represented by other forms than the table, and may be determined according to actual application scenario requirements, and is not limited herein.
  • the modulation scheme and coding rate shown in the mapping relationship set 1 there are eight combinations of the modulation scheme and the coding rate of the data channel, and the modulation scheme includes quadrature phase shift keying (QPSK). And 16-quadrature amplitude modulation (16QAM).
  • QPSK quadrature phase shift keying
  • 16QAM 16-quadrature amplitude modulation
  • one modulation mode corresponds to one modulation order. Therefore, the correspondence between the modulation mode and the coding rate may be embodied as a correspondence between the modulation order and the coding rate.
  • the modulation order QPSK has a modulation order (denoted as Q or Q m ) of 2
  • the modulation mode 16QAM has a modulation order of 4.
  • the modulation mode may also be represented by other data forms, and is not limited herein.
  • the coding rate of the data channel is concentrated in the low code rate region, for example, 0.01 to 0.15.
  • the URLLC service has a high reliability and low latency performance requirement, and the modulation mode of the URLLC service is mainly a low-order modulation mode, and the coding rate is mainly concentrated in a low code rate interval. Therefore, the above mapping relationship set 1 can be applied to a URLLC service or the like supported by the terminal device.
  • the foregoing URLLC service is only an example.
  • the foregoing mapping relationship set 1 can also be applied to more types of services, and can be determined according to actual application scenarios, and is not limited herein.
  • a combination of modulation mode and coding rate may correspond to an index.
  • the index of the foregoing modulation mode and the coding rate may be an MCS index, or may be index information of other representations, and is not limited herein. For convenience of description, the following will be explained by MCS index, and Table 2 will not be described again.
  • MCS index Modulation order Code rate 0 2 0.05 1 2 0.1 2 2 0.15 3 2 0.2 4 2 0.25 5 4 0.3 6 4 0.35 7 4 0.4 8 4 0.45 9 4 0.5 10 4 0.55 11 6 0.6 12 6 0.65 13 6 0.7 14 6 0.75 15 6 0.8
  • the coding rate covers a large interval, for example, 0.05 to 0.8.
  • eMBB services have more modulation modes than eMBB services due to large data transmission capacity and high transmission rate, and the coding rate covers a large interval.
  • mapping relationship set 2 can be applied to eMBB services and the like supported by the terminal device.
  • the above-mentioned eMBB service is only an example, and the foregoing mapping relationship set 2 can also be applied to more types of services, which can be determined according to actual application scenarios, and is not limited herein.
  • the mapping relationship set described in the embodiment of the present application may be configured by a network device.
  • the network device can configure different mapping relationship sets for the terminal device according to the requirements of the performance indicators of the different services supported by the terminal device, so as to meet the requirements of different performance indicators of different services of the terminal device.
  • the network device may also separately configure one mapping relationship set for different terminal devices supporting different services, and multiple terminal devices configure multiple mapping relationship sets.
  • the number of the mapping relationship set may be determined by the network device, or may be determined according to the number of service types supported by the terminal device, and is not limited herein.
  • the network device may configure different mapping relationship sets for different services, and then deliver the indication information of the mapping relationship set corresponding to the service according to the service carried by the terminal device.
  • mapping relationship set described in the embodiment of the present application may also be preset by the terminal device, and does not need to be configured by the network device.
  • the manner in which the mapping relationship set is defined may be determined according to the actual application scenario, and is not limited herein.
  • mapping relationship sets are configured for different services of the terminal device by using a network device configuration or a preset by the terminal device, so that the service of the terminal device can be better adapted.
  • the URLLC service has a high-reliability and low-latency performance requirement
  • the modulation mode of the URLLC service is mainly a low-order modulation mode
  • the coding rate is mainly concentrated in a low code rate interval.
  • mapping relationship set of a modulation mode and a coding rate (for example, mapping relationship set 1) is specifically defined for the URLLC service, and on the one hand, the total combination of the modulation mode and the coding rate can be reduced, thereby reducing the downlink when notifying the modulation mode and the coding rate of the terminal device. Control the overhead of information. On the other hand, the resolution of the low bit rate working area can be improved, thereby better adapting the channel and improving the spectral efficiency of the system.
  • the network device may also configure a default mapping relationship set for the terminal device, or the terminal device may pre-configure a default mapping relationship set (or a default mapping relationship set).
  • the default mapping relationship set described above is applicable to scenarios such as receiving a system broadcast message of a terminal device. For example, system information reception, paging, random access response and other application requirements.
  • a default mapping relationship set is configured for the terminal device, so that the mapping relationship set required by the service requirements of the terminal device is more complete, and the flexibility of configuring the service resources of the terminal device is improved.
  • the network device may determine a modulation mode and a coding rate according to information such as a channel state or a resource to be scheduled.
  • the network device may determine, according to the determined combination of the modulation mode and the coding rate, the indication information corresponding to the combination of the modulation mode and the coding rate from the first mapping relationship set.
  • the first mapping relationship set may be a default mapping relationship set in the plurality of mapping relationship sets.
  • the indication information corresponding to the combination of the modulation mode and the coding rate may be index information such as an MCS index.
  • the foregoing first mapping relationship set may also be a mapping relationship set corresponding to the service supported by the terminal device.
  • the service supported by the terminal device is a URLLC service
  • the network device determines a combination of a modulation mode QPSK (ie, modulation order 2) and a coding rate of 0.01 (set to combination 1)
  • the mapping relationship set 1 ie, Table 1
  • the indication information corresponding to the combination 1 is determined, that is, the MCS index is 0.
  • the terminal device can report the type of service supported by the network device.
  • the network device may select, according to the service type supported by the terminal device, the first mapping relationship set applicable to the service type supported by the terminal device from the plurality of mapping relationship groups. That is, the first mapping relationship set is one of the plurality of mapping relationship sets. For example, if the terminal device reports that the service type supported by the terminal device is the URLLC, the network device can use the mapping relationship set (ie, the mapping relationship set 1) shown in Table 1 as the first mapping relationship set.
  • the network device may determine a combination of a modulation mode and a coding rate from the first mapping relationship according to channel conditions, or resources to be scheduled, and determine indication information corresponding to a combination of the modulation mode and the coding rate.
  • the network device sends control information to the terminal device.
  • control information may be downlink control information (DCI).
  • DCI may include indication information of a modulation mode and a coding rate, resource information of a data channel, and the like.
  • the indication information indicates an index of a modulation mode and a coding rate determined by the network device.
  • the above resource information is used to determine the number of time-frequency resources.
  • the DCI that is sent by the network device to the terminal device may include mapping relationship set indication information, where the mapping relationship set indication information is used to indicate the first mapping relationship set determined by the network device.
  • the DCI may include at least 1 bit for indicating the first mapping relationship set.
  • the DCI indicates the mapping relationship between the modulation scheme and the encoding rate adopted by the data channel by 1 bit.
  • the value of the bit is “0”, which corresponds to the mapping relationship set 1 of the modulation mode and the coding rate of the data channel (such as the mapping relationship set shown in Table 1), and the value of the bit is “1”.
  • the data channel adopts a mapping relationship set 2 of modulation mode and coding rate (as shown in the mapping relationship set shown in Table 2).
  • the terminal device determines the first mapping relationship set according to the value of the bit in the DCI.
  • the network device sends the DCI to the terminal device, where the terminal device determines, by using a DCI format, a mapping relationship between the modulation mode and the coding rate of the data channel corresponding to the DCI.
  • the format of the DCI corresponds to the original information bits included in the DCI.
  • the format 1 of the DCI corresponds to the mapping relationship set 1 of the modulation mode and the coding rate of the data channel
  • the format 2 of the DCI corresponds to the mapping relationship set 2 of the modulation mode and the coding rate of the data channel.
  • the terminal device may determine the first mapping relationship set according to the format of the DCI.
  • the network device sends the DCI to the terminal device, and the terminal device determines, by using the information type carried by the data channel, a mapping relationship between the modulation mode and the coding rate used by the data channel corresponding to the DCI.
  • the terminal device can determine, by using the DCI, that the data channel carries a system message, and further can determine a first mapping relationship set of a modulation mode and a coding rate adopted by the data channel, for example, a default mapping relationship set.
  • the terminal device may determine the default mapping relationship set as the first mapping relationship set.
  • the network device may send configuration information to the terminal device before sending the DCI to the network device, where the configuration information indicates the first mapping relationship set used by the data channel corresponding to the DCI.
  • the terminal device receives the control information, and determines a configuration parameter of the TBS according to the first mapping relationship set and the control information.
  • the configuration parameters of the foregoing TBS may include a modulation mode, a coding rate, and a number of time-frequency resources.
  • the modulation mode and the coding rate may be determined from the first mapping relationship set according to the indication information (MCS index, etc.) of the combination of the modulation mode and the coding rate included in the DCI.
  • the terminal device determines that the first mapping relationship set is the mapping relationship set 1 shown in Table 1, and the MCS index indicated by the indication information is 0, and the terminal device can determine the modulation mode and the coding rate from Table 1, ie, The modulation mode 1 and the coding rate 0.01 corresponding to the combination 1 of the modulation scheme and the coding rate.
  • the resource information of the data channel may be included in the foregoing DCI.
  • the resource information indicates a time-frequency resource allocated by the network device to the terminal device, and the terminal device can determine the time-frequency resource allocated by the network device according to the resource information, and the fixed-time time-frequency resource determines the time-frequency resource occupied by the data channel. number.
  • the time-frequency resource occupied by the data channel may be a time-frequency resource that is available for the data channel, and may include: removing the fixed-time time-frequency resource (that is, specifying the time-frequency resource) in the time-frequency resource allocated by the network device to the terminal device. Remaining time-frequency resources outside.
  • the fixed overhead time-frequency resource may include: a time-frequency resource occupied by a demodulation reference signal (DMRS) corresponding to the data channel, and a channel state information-reference signal sent by the network device.
  • Time-frequency resources occupied by CSI-RS may include a pre-configured signal of the network device or a time-frequency resource occupied by the channel, such as a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). Or a time-frequency resource occupied by a physical broadcast channel (PBCH) or the like.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • the time-frequency resources reserved by the network device may also include reserved time-frequency resources dynamically notified by the network device.
  • the time-frequency resource in the number of time-frequency resources occupied by the data channel may also be an RE unit, in other words, when the data channel is occupied.
  • the size of the time-frequency resource mentioned in the number of frequency resources may be smaller than the size of the physical resource block.
  • the terminal device determines the TBS according to the modulation mode, the coding rate, and the number of the time-frequency resources.
  • the configuration parameter of the foregoing TBS may further include the number of transmission layers supported by the data channel corresponding to the DCI.
  • the terminal device may further determine, according to the precoding indication information included in the DCI, the number of transmission layers supported by the data channel corresponding to the DCI.
  • the terminal device may determine the number of transmission layers supported by the data channel according to the transmission mode corresponding to the data channel corresponding to the DCI.
  • the TBS of the data channel may be determined.
  • the foregoing TBS may be a first TBS.
  • the first TBS above satisfies:
  • the N is the number of time-frequency resources available for the data channel
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the determined modulation mode
  • R is the determined coding rate.
  • the above N can be quantified by large particles.
  • K is a positive integer
  • the N_TEMP may be the number of time-frequency resources available for the data channel; N is the number of time-frequency resources available for the quantized data channel, and N is used to calculate the first TBS, and/or the second TBS, and details are not described herein.
  • the first TBS may be obtained by looking up the table according to the number N of time-frequency resources available for the data channel, the number of transmission layers v supported by the data channel, and the modulation mode.
  • the table obtains the number of bits L carried on the unit resource, and further the number of bits L carried on the unit resource, and the time-frequency resources available for the data channel.
  • the ratio of the number N to the number of resources included in the unit resource is multiplied to obtain the first TBS.
  • the number of bits L of the single-layer transmission bearer is obtained, and the number of bits L of the single-layer transmission bearer and the transport layer supported by the data channel are further selected.
  • the number v is multiplied to get the first TBS.
  • the number of bits L of the single-layer transmission bearer on the unit resource may be obtained according to the modulation mode, and the number of bits of the single-layer transmission bearer on the unit resource, and the number of time-frequency resources available for the data channel are N.
  • the ratio of the number of resources included in the unit resource to the number of transmission layers v supported by the data channel is multiplied to obtain the first TBS.
  • the terminal device may determine the second TBS according to the foregoing modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers supported by the data channel, and then determine according to the second TBS.
  • First TBS may be a temporary TBS determined by the terminal device, and the terminal device determines, according to the temporary TBS and other parameters, the TBS that is finally required, that is, the first TBS.
  • the foregoing other parameters may be a voice over internet protocol (VOIP) packet size and/or a medium access control (MAC) element (CE) packet size.
  • VOIP voice over internet protocol
  • MAC medium access control element
  • the foregoing second TBS can satisfy:
  • the N is the number of time-frequency resources available for the data channel
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the determined modulation mode
  • R is the determined coding rate.
  • the above N can be quantified by large particles.
  • K is a positive integer
  • the second TBS may be obtained by looking up the table according to the number N of time-frequency resources available for the data channel, the number of transmission layers v supported by the data channel, and the modulation mode.
  • the table obtains the number of bits L carried on the unit resource, and further the number of bits L carried on the unit resource, and the time-frequency resources available for the data channel.
  • the ratio of the number N to the number of resources included in the unit resource is multiplied to obtain the second TBS.
  • the number of bits L of the single-layer transmission bearer is obtained, and the number of bits L of the single-layer transmission bearer and the transport layer supported by the data channel are further selected.
  • the number v is multiplied to get the second TBS.
  • the number of bits L of the single-layer transmission bearer on the unit resource may be obtained according to the modulation mode, and the number of bits of the single-layer transmission bearer on the unit resource, and the number of time-frequency resources available for the data channel are N.
  • the ratio of the number of resources included in the unit resource to the number of transmission layers v supported by the data channel is multiplied to obtain the second TBS.
  • the first TBS may be determined according to any one of the following manners 1 to 4.
  • the first TBS is equal to the second TBS. That is, the foregoing second TBS may be determined as the first TBS, that is, the first TBS finally determined by the terminal device is equal to the second TBS.
  • the first TBS is the first element in the first set of values.
  • the first TBS when the second TBS is less than or equal to the first reference threshold, the first TBS may be an element in the first set of values that is less than or equal to the second TBS and has the smallest absolute value of the difference from the second TBS. .
  • the terminal device may perform the difference calculation between the elements included in the first set of values and the second TBS to obtain the second TBS and the first value.
  • a difference value of each element included in the set, from which an absolute value of the difference value is selected to be the smallest and one element smaller than or equal to the second TBS is determined as the first TBS.
  • the value of the first TBS can preferentially ensure the reliability of data transmission, and the transmission efficiency loss is minimal.
  • the difference between the second TBS and each element in the first set of values is obtained.
  • the first set of values is [8, 16, 24, 32, 40, 56, 72, 104, 120, 144, 152, 176, 208, 224, 256, 296, 328, 344, 392, 440, 488, 536]
  • the first TBS may be an element in the first set of values that is greater than or equal to the second TBS and has the smallest absolute value of the difference from the second TBS.
  • the value of the first TBS can better meet the service quality requirement in the case where the reliability of the data transmission is slightly decreased, and the transmission efficiency is superior.
  • the first TBS is an element that has the smallest absolute value of the difference between the second TBS and the first TBS. If the absolute value of the difference between the 2 elements and the second TBS is the same and is the smallest, the smaller element is selected.
  • the value of the first TBS may minimize the reliability deviation of the data transmission, and although the transmission efficiency is slightly lost, the reliability of the data transmission is improved.
  • the first TBS is an element that has the smallest absolute value of the difference between the second TBS and the first TBS. If the absolute value of the difference between the 2 elements and the second TBS is the same and is the smallest, the larger element is selected.
  • the value of the first TBS may minimize the reliability deviation of the data transmission, and although the reliability is slightly decreased, the transmission efficiency of the transmission data is improved.
  • TBS 72
  • TBS 40
  • the foregoing first value set includes a special packet size, such as a VOIP packet size, and/or a MAC CE packet size.
  • the first set of values may only include a VOIP packet size and/or a MAC CE packet size.
  • the foregoing first value set may also include an enhanced voice service codec (EVS codec) packet size, for example:
  • EVS codec enhanced voice service codec
  • the first set of values may include a VOIP packet size and/or a MAC CE packet size, and include some elements inserted at a location where the special packet size interval is large.
  • the elements 88, 136, 144, 280, 288, 336, 376, 408, 424, 456, 472, 504, and 520 in the set 5 are inserted elements.
  • some elements are inserted at a position where a special packet size (VOIP packet size, MAC CE packet size, and EVS codec size) is relatively large, so that the difference between each element in the first value set is more Uniform, the selection of the first TBS can be a special packet size or an inserted element, so that the value of the first TBS is more accurate and the applicability is stronger.
  • VOIP packet size, MAC CE packet size, and EVS codec size VOIP packet size, MAC CE packet size, and EVS codec size
  • the elements 88, 136, 144, 280, 288, 336, 376, 408, 424, 456, 472, 504, and 520 in the set 6 are inserted elements.
  • the first set of values may include a VOIP packet size, and/or a MAC CE packet size, and/or an EVS codec packet size, and are included in the special packet size interval described above. Some elements inserted in a larger position.
  • the first reference threshold is greater than or equal to a maximum VOIP packet size, or a maximum MAC CE packet size.
  • the value of the first reference threshold may be 536, or 328, and the like.
  • the first reference threshold is greater than or equal to the maximum VOIP packet size, or the maximum MAC CE packet size, or the maximum EVS codes packet size.
  • the value of the first reference threshold may be 536, or 328, or 632.
  • the embodiment of the present application obtains the determining manner of the first TBS by comparing the second TBS with the first reference threshold, so that the transmission of small data packets (or small packets), especially special data packets, is more efficient, and also makes large data.
  • the TBS is determined to be more flexible in packet transmission, more applicable and more scalable.
  • the special data packet may include a VOIP packet, a MACCE packet, and an EVS codec packet, and is not limited herein.
  • the first TBS is the second element in the first set of values.
  • the second TBS may perform a difference calculation with each element included in the first value set, and obtain the second TBS and each element in the first value set. The absolute value of the difference. If the absolute value of the difference between the second TBS and one of the first set of values (set as the second element) is less than or equal to the second reference threshold, the element may be determined as the first TBS.
  • the value of the second reference threshold may be a predefined value.
  • the above predefined value may be 8 or 16 or 32.
  • This predefined value can be configured by protocol convention or network device.
  • the value of the second reference threshold may also be a product of the second element and a predefined coefficient, for example, M times of the second element, where M may be a decimal.
  • M may be a decimal.
  • the above predefined coefficients may be agreed by a protocol or configured by a network device.
  • the above predefined coefficient may be 0.01 or 0.1.
  • the foregoing predefined coefficients may be set to different values corresponding to different second elements, and may be determined according to actual application scenarios. For example, for a second element with a smaller value, the predefined coefficient may take a smaller value, for example, 0.01, and for a second element with a larger value, the predefined coefficient may take a larger value, for example, 0.05 or the like.
  • the second TBS is determined to be the first TBS.
  • the second TBS may perform a difference calculation with each element included in the first value set, and obtain the second TBS and each element in the first value set. The absolute value of the difference. If the absolute value of the difference between the second TBS and one of the first set of values (set as the second element) is greater than the second reference threshold, the second TBS may be determined as the first TBS.
  • the terminal device may determine the first TBS according to different manners.
  • the second TBS may be determined as the first A TBS makes the TBS determination method more flexible when the large data packet is transmitted, and the applicability is stronger and the scalability is stronger.
  • the absolute value of the difference between the second TBS and the second element in the first set of values is less than or equal to the element of the second reference threshold
  • the absolute value of the difference between the first set of values and the second TBS may be An element less than or equal to the second reference threshold (ie, the second element) is determined to be the first TBS, making the transmission of small packets (or packets), particularly special packets, more efficient.
  • the network device determines the TBS according to the modulation mode, the coding rate, and the number of the time-frequency resources.
  • the number of transmission layers supported by the data channel may be determined according to a transmission mode corresponding to the data channel.
  • the network device can determine the TBS according to the modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers supported by the data channel.
  • the foregoing TBS may be a first TBS.
  • the first TBS meets:
  • the N is the number of time-frequency resources available for the data channel
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the determined modulation mode
  • R is the determined coding rate.
  • the foregoing data channel may be a data channel that the network device sends to the terminal device.
  • the above N can be quantified by large particles.
  • K is a positive integer
  • the network device may determine the second TBS according to the foregoing modulation mode, the coding rate, the number of time-frequency resources, and the number of transmission layers supported by the data channel, and then determine according to the second TBS.
  • First TBS may be a temporary TBS determined by the network device, and the network device determines, according to the temporary TBS and other parameters, a TBS that is ultimately required, that is, the first TBS.
  • the other parameters may be the size of the VIPP packet and/or the size of the MAC CE packet.
  • the foregoing second TBS can satisfy:
  • the N is the number of time-frequency resources available for the data channel
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the determined modulation mode
  • R is the determined coding rate.
  • the first TBS may be determined according to any one of the following manners 1 to 4.
  • the first TBS is equal to the second TBS. That is, the foregoing second TBS may be determined as the first TBS, that is, the first TBS finally determined by the terminal device is equal to the second TBS.
  • the first TBS is the first element in the first set of values.
  • the first TBS when the second TBS is less than or equal to the first reference threshold, the first TBS may be an element in the first set of values that is less than or equal to the second TBS and has the smallest absolute value of the difference from the second TBS. .
  • the terminal device may perform the difference calculation between the elements included in the first set of values and the second TBS to obtain the second TBS and the first value.
  • the difference between each element included in the set, and one element from which the absolute value of the difference is selected is determined as the first TBS.
  • the first set of values is [8, 16, 24, 32, 40, 56, 72, 104, 120, 144, 152, 176, 208, 224, 256, 296, 328, 344, 392, 440, 488, 536]
  • the first set of values is [8, 16, 24, 32, 40, 56, 72, 104, 120, 144, 152, 176, 208, 224, 256, 296, 328, 344, 392, 440, 488, 536]
  • the first TBS may be an element in the first set of values that is greater than or equal to the second TBS and has the smallest absolute value of the difference from the second TBS.
  • the first TBS is an element that has the smallest absolute value of the difference between the second TBS and the first TBS. If the absolute value of the difference between the 2 elements and the second TBS is the same and is the smallest, the smaller element is selected.
  • TBS 72
  • TBS 40
  • the foregoing first value set includes a special packet size, such as a VOIP packet size, and/or a MAC CE packet size.
  • the first set of values may only include a VOIP packet size and/or a MAC CE packet size.
  • the first set of values may also include an EVS codec packet size, for example:
  • the first set of values may include a VOIP packet size and/or a MAC CE packet size, and include some elements inserted at a location where the special packet size interval is large.
  • the elements 88, 136, 144, 280, 288, 336, 376, 408, 424, 456, 472, 504, and 520 in the set 5 are inserted elements.
  • some elements are inserted at a position where a special packet size (VOIP packet size, MAC CE packet size, and EVS codec size) is relatively large, so that the difference between each element in the first value set is more Uniform, the selection of the first TBS can be a special packet size or an inserted element, so that the value of the first TBS is more accurate and the applicability is stronger.
  • VOIP packet size, MAC CE packet size, and EVS codec size VOIP packet size, MAC CE packet size, and EVS codec size
  • the elements 88, 136, 144, 280, 288, 336, 376, 408, 424, 456, 472, 504, and 520 in the set 6 are inserted elements.
  • the first set of values may include a VOIP packet size, and/or a MAC CE packet size, and/or an EVS codec packet size, and are included in the special packet size interval described above. Some elements inserted in a larger position.
  • the first reference threshold is greater than or equal to a maximum VOIP packet size, or a maximum MAC CE packet size.
  • the value of the first reference threshold may be 536, or 328, and the like.
  • the first reference threshold is greater than or equal to the maximum VOIP packet size, or the maximum MAC CE packet size, or the maximum EVS codes packet size.
  • the value of the first reference threshold may be 536, or 328, or 632.
  • the embodiment of the present application obtains the determining manner of the first TBS by comparing the second TBS with the first reference threshold, so that the transmission of small data packets (or small packets), especially special data packets, is more efficient, and also makes large data.
  • the TBS is determined to be more flexible in packet transmission, more applicable and more scalable.
  • the special data packet may include a VOIP packet, a MACCE packet, and an EVS codec packet, and is not limited herein.
  • the first TBS is the second element in the first set of values.
  • the second TBS may perform a difference calculation with each element included in the first value set, and obtain the second TBS and each element in the first value set. The absolute value of the difference. If the absolute value of the difference between the second TBS and one of the first set of values (set as the second element) is less than or equal to the second reference threshold, the element may be determined as the first TBS.
  • the value of the second reference threshold may be a predefined value.
  • the above predefined value may be 8 or 16 or 32.
  • This predefined value can be configured by protocol convention or network device.
  • the value of the second reference threshold may also be a product of the second element and a predefined coefficient, for example, M times of the second element, where M may be a decimal.
  • M may be a decimal.
  • the above predefined coefficients may be agreed by a protocol or configured by a network device.
  • the above predefined coefficient may be 0.01 or 0.1.
  • the foregoing predefined coefficients may be set to different values corresponding to different second elements, and may be determined according to actual application scenarios. For example, for a second element with a smaller value, the predefined coefficient may take a smaller value, for example, 0.01, and for a second element with a larger value, the predefined coefficient may take a larger value, for example, 0.05 or the like.
  • the second TBS is determined to be the first TBS.
  • the second TBS may perform a difference calculation with each element included in the first value set, and obtain the second TBS and each element in the first value set. The absolute value of the difference. If the absolute value of the difference between the second TBS and one of the first set of values (set as the second element) is greater than or equal to the second reference threshold, the second TBS may be determined as the first TBS.
  • the network device may determine the first TBS according to different manners.
  • the second TBS may be determined as The first TBS makes the TBS determination method more flexible when the large data packet is transmitted, and the applicability is stronger and the scalability is stronger.
  • the absolute value of the difference between the second TBS and the second element in the first set of values is less than or equal to the element of the second reference threshold
  • the absolute value of the difference between the first set of values and the second TBS may be An element less than or equal to the second reference threshold (ie, the second element) is determined to be the first TBS, making transmission of small packets (or packets), particularly special packets, more efficient.
  • step S28 may also be performed before step S22. That is, in a specific implementation, after the network device determines the modulation mode and the coding rate, the number of time-frequency resources and the number of transmission layers supported by the data channel may be further determined, and according to the determined modulation mode, coding rate, and number of time-frequency resources. And the number of transmission layers determines the first TBS.
  • the determination of the first TBS and the order of sending the control information are not limited, and may be determined according to actual application scenarios.
  • the network device sends the data channel on the time-frequency resource based on the first TBS.
  • the network device may send the data channel on the time-frequency resource based on the determined first TBS.
  • the time-frequency resource may be a time-frequency resource actually occupied by the data channel.
  • the terminal device decodes the data channel carried on the time-frequency resource based on the determined first TBS.
  • the terminal device may decode the data channel carried on the time-frequency resource based on the determined first TBS.
  • the time-frequency resource may be a time-frequency resource actually occupied by the data channel.
  • steps S30 and S32 may also be replaced by the following steps S30' and S32':
  • the terminal device sends the data channel on the time-frequency resource based on the determined first TBS.
  • the network device decodes the data channel carried on the time-frequency resource based on the first TBS.
  • the network device For uplink data transmission, the network device sends DCI to the terminal device, and the terminal device can perform channel coding and data modulation according to the determined modulation mode and coding rate.
  • the terminal device may transmit the data channel based on the determined first TBS on the time-frequency resource actually occupied by the data channel.
  • the network device may base the data channel carried on the time-frequency resource actually occupied by the determined first TBS decoding data channel.
  • the TBS satisfies:
  • the N PRB indicates the number of physical resource blocks (PRBs) allocated by the network device to the terminal device, and the N PRB is indicated by the DCI received by the terminal device.
  • PRBs physical resource blocks
  • Each of the above PRB The same, and semi-static configuration by the network device through high layer signaling.
  • v denotes the number of transmission layers supported by the data channel
  • Q m denotes a modulation order
  • R denotes a target code rate (ie, a coding rate) of the data channel.
  • I a fixed value (120).
  • a semi-static configuration can be performed by the network device, and the specific value can be configured for different application scenarios.
  • each PRB Different, in the above implementation manner, The configuration of the system is not flexible enough to dynamically adapt to specific application scenarios and thus fail to meet the performance requirements of different services of the terminal device, resulting in a reduction in system spectrum efficiency.
  • all services supported by the terminal device use the same MCS and code rate mapping table, that is, a table that uses the same code rate for all services without distinction.
  • the performance requirements of different services are different. For example, the requirements of URLLC for delay and reliability make the main working interval in the low bit rate region, so the low bit rate region is required to have better granularity.
  • the MCS used by all services is placed in a mapping table of MCS and code rate, which may cause the number of bits of DCI to increase and the applicability is low.
  • the terminal device may determine the modulation mode and the coding rate from the first mapping relationship according to the control information sent by the network device, and determine the number of the time-frequency resources according to the control information.
  • the time-frequency resource is a time-frequency resource for transmitting or receiving a data channel, that is, a time-frequency resource actually occupied by the data channel, and thereby determining a TBS of the data channel.
  • the target coding rate here is the coding rate that the network device expects the data channel to reach, and the above coding rate is the coding rate actually used by the data channel.
  • the network device also determines the TBS according to the same number of time-frequency resources. Therefore, the TBS determined by the network device also has the above effects.
  • the TBS is determined according to the modulation mode, the coding rate, and the number of time-frequency resources, it can be determined in the same manner regardless of the number of resources scheduled and regardless of other overhead resources in the scheduled resources.
  • the accurate TBS therefore, the TBS determination mode can be applied to various scheduling scenarios, so the TBS determination mode has high flexibility and good scalability.
  • the time-frequency resources allocated to the terminal device are not too small, so that the possibility of retransmission can be reduced when the data channel is received or the data channel is received, and the time-frequency resources allocated to the terminal device are further allocated. Not too much, avoiding the waste of resources.
  • a mapping table of different modulation modes and coding rates may be configured for performance requirements of services of different service types of the terminal device, and various flexible resource allocation scenarios in the 5G communication system may be dynamically adapted, and the operation is more Flexible and more adaptable.
  • the implementation manner provided by the embodiment of the present application may directly determine the modulation mode and the coding rate according to the mapping relationship between the configured modulation mode and the coding rate, and further determine the TBS by using a predefined TBS determination formula, without defining a TBS table. There is no need to search through multiple tables such as the MCS mapping table and the TBS table, which effectively reduces the implementation complexity of the TBS, thereby improving the efficiency of data transmission and the spectrum efficiency of the system, and the applicability is stronger.
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device shown in FIG. 3 may include a transceiver unit 31 and a processing unit 32, wherein a detailed description of each unit is as follows:
  • the transceiver unit 31 is configured to receive control information sent by the network device, where the control information includes resource information indicating the information and the data channel;
  • the processing unit 32 is configured to determine a modulation mode and a coding rate according to the first mapping relationship set and the indication information received by the transceiver unit 31, and determine a time frequency according to the resource information of the data channel received by the transceiver unit 31. a number of resources, where the first mapping relationship set includes a correspondence between the indication information and a combination of the modulation mode and the coding rate;
  • the processing unit 32 is further configured to determine, according to the modulation mode, the coding rate, and the number of the time-frequency resources, a first transport block size TBS;
  • the transceiver unit 31 is further configured to: according to the first TBS determined by the processing unit 32, decode the data channel carried on the time-frequency resource or the terminal device determines, according to the processing unit 32, The first TBS transmits the data channel on the time-frequency resource.
  • the size of the time-frequency resource is smaller than the size of the physical resource block.
  • processing unit 32 is configured to:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • processing unit 32 is configured to:
  • the first TBS is equal to the second TBS.
  • processing unit 32 is configured to:
  • the first TBS is the first element in the first set of values.
  • processing unit 32 is configured to:
  • the first TBS is the first in the first set of values Two elements.
  • processing unit 32 is configured to:
  • the first TBS is equal to the second TBS.
  • processing unit 32 is configured to:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • the first reference threshold is greater than or equal to a maximum VOIP packet size, or a maximum MAC CE packet size.
  • the first element is an element that is less than or equal to the second TBS and the absolute value of the difference between the second TBS and the second TBS is the smallest;
  • the first element is an element in the first set of values that is greater than or equal to the second TBS and has a smallest absolute value of a difference from the second TBS;
  • the first element is an element that has the smallest absolute value of the difference between the first value set and the second TBS.
  • the first set of values includes at least a VOIP packet size, and/or a MAC CE packet size.
  • the first set of values includes at least one of 8, 16, 24, 32, 40, 56, 72, 88, 104, 120, 136, 144, 152, 176, 208, 224, 256, 280, 288, 296, 328, 336, 344, 376, 392, 408, 424, 440, 456, 472, 488, 504, 520, 536.
  • the second reference threshold is a predefined value, or the second reference threshold is a product of the second reference element and a predefined coefficient.
  • processing unit 32 is configured to:
  • the specified time-frequency resource includes: a time-frequency resource occupied by the demodulation reference signal DMRS corresponding to the data channel, and the channel quality measurement reference sent by the network device in the time-frequency resource indicated by the resource information One or more of the time-frequency resources occupied by the signal CSI-RS and the time-frequency resources reserved by the network device.
  • the first mapping relationship set is a default mapping relationship set in multiple mapping relationship sets.
  • the transceiver unit 31 is further configured to receive configuration information that is sent by the network device, where the configuration information indicates the first mapping relationship set, and the first mapping relationship set is one of multiple mapping relationship sets.
  • control information further includes mapping relationship set indication information, where the mapping relationship set indication information indicates the first mapping relationship set, and the first mapping relationship set is one of a plurality of mapping relationship sets.
  • the format of the control information indicates the first mapping relationship set, where the first mapping relationship set is one of multiple mapping relationship sets;
  • the information type carried by the data channel indicated by the control information indicates the first mapping relationship set, where the first mapping relationship set is one of a plurality of mapping relationship sets.
  • processing unit 32 is further configured to:
  • processing unit 32 is further configured to:
  • the terminal device may perform the implementation manner performed by the terminal device in the embodiment described in FIG. 2 by using various units built therein.
  • the specific implementation may refer to the corresponding description of the method embodiment shown in FIG. 2, and details are not described herein again.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device illustrated in FIG. 4 may include a processing unit 41 and a transceiving unit 42, wherein the detailed description of each unit is as follows.
  • the processing unit 41 is configured to determine a modulation mode and a coding rate, and determine indication information according to the combination of the modulation mode and the coding rate and the first mapping relationship set, where the first mapping relationship includes the indication information Corresponding relationship between the modulation mode and the combination of the coding rates;
  • the transceiver unit 42 is configured to send control information to the terminal device, where the control information includes the indication information determined by the processing unit 41 and resource information of a data channel, where the resource information is used to determine the number of time-frequency resources;
  • the processing unit 41 is further configured to determine, according to the modulation mode, the coding rate, and the number of the time-frequency resources, a first transport block size TBS;
  • the transceiver unit 42 is further configured to: according to the first TBS, decode the data channel carried on the time-frequency resource or the network device sends the data on the time-frequency resource based on the first TBS channel.
  • the size of the time-frequency resource is smaller than the size of the physical resource block.
  • processing unit 41 is configured to:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • processing unit 41 is configured to:
  • the first TBS is equal to the second TBS.
  • processing unit 41 is configured to:
  • the first TBS is the first element in the first set of values.
  • processing unit 41 is configured to:
  • the first TBS is the first in the first set of values Two elements.
  • processing unit 41 is configured to:
  • the first TBS is equal to the second TBS.
  • processing unit 41 is configured to:
  • N is the number of the time-frequency resources
  • v is the number of transmission layers supported by the data channel
  • Q is the modulation order corresponding to the modulation mode
  • R is the coding rate.
  • the first reference threshold is greater than or equal to a maximum VOIP packet size, or a maximum MAC CE packet size.
  • the first element is an element that is less than or equal to the second TBS and the absolute value of the difference between the second TBS and the second TBS is the smallest;
  • the first element is an element in the first set of values that is greater than or equal to the second TBS and has a smallest absolute value of a difference from the second TBS;
  • the first element is an element that has the smallest absolute value of the difference between the first value set and the second TBS.
  • the first set of values includes at least a VOIP packet size, and/or a MAC CE packet size.
  • the first set of values includes at least one of 8, 16, 24, 32, 40, 56, 72, 88, 104, 120, 136, 144, 152, 176, 208, 224, 256, 280, 288, 296, 328, 336, 344, 376, 392, 408, 424, 440, 456, 472, 488, 504, 520, 536.
  • the second reference threshold is a predefined value, or the second reference threshold is a product of the second reference element and a predefined coefficient.
  • the resource information indicates a time-frequency resource allocated by the network device to the terminal device;
  • the number of the time-frequency resources is the remaining time-frequency resources except the specified time-frequency resources in the time-frequency resources indicated by the resource information;
  • the specified time-frequency resource includes: a time-frequency resource occupied by a demodulation reference signal DMRS corresponding to the data channel, a time-frequency resource occupied by a channel quality measurement reference signal CSI-RS sent by the network device, and One or more of the time-frequency resources reserved by the network device.
  • the first mapping relationship set is a default mapping relationship set in multiple mapping relationship sets.
  • the transceiver unit 42 is further configured to send configuration information to the terminal device, where the configuration information indicates the first mapping relationship set, and the first mapping relationship set is one of multiple mapping relationship sets.
  • control information further includes mapping relationship set indication information, where the mapping relationship set indication information indicates the first mapping relationship set, and the first mapping relationship set is one of a plurality of mapping relationship sets.
  • the format of the control information indicates the first mapping relationship set, where the first mapping relationship set is one of multiple mapping relationship sets;
  • the information type carried by the data channel indicated by the control information indicates the first mapping relationship set, where the first mapping relationship set is one of a plurality of mapping relationship sets.
  • control information includes precoding indication information, where the precoding indication information indicates a number of transmission layers supported by the data channel.
  • processing unit 41 is further configured to:
  • the network device may perform the implementation performed by the network device in the embodiment described in FIG. 2 by using various units built therein.
  • the specific implementation may refer to the corresponding description of the method embodiment shown in FIG. 2, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of a communication device 50 according to an embodiment of the present application.
  • the communication device 50 provided by the embodiment of the present application includes a processor 501, a memory 502, a transceiver 503, and a bus system 504.
  • the processor 501, the memory 502 and the transceiver 503 are connected by a bus system 504.
  • the above memory 502 is used to store programs.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 502 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or Portable disc read-only memory (CD-ROM). Only one memory is shown in FIG. 5, and of course, the memory can be set to a plurality as needed.
  • the memory 502 may also be a memory in the processor 501, which is not limited herein.
  • the memory 502 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 501 controls the operation of the communication device 50.
  • the processor 501 may be one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single-core CPU. It can also be a multi-core CPU.
  • bus system 504 which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 504 may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 504 may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 504 for clarity of description, various buses are labeled as bus system 504 in FIG. For ease of representation, only the schematic drawing is shown in FIG.
  • the method of the terminal device disclosed in the foregoing embodiment of the present application, or the method of the terminal device disclosed in the foregoing embodiments, or the method of the network device of the foregoing embodiment, which is provided in the foregoing application, may be applied to the processor 501. Or implemented by the processor 501.
  • Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 501 or an instruction in a form of software.
  • the processor 501 may be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and performs the method steps of the terminal device described in FIG. 3 or the above various embodiments in combination with the hardware thereof; or executes the hardware in FIG. 4 or the above embodiments in combination with the hardware thereof.
  • the program can be stored in a computer readable storage medium, when the program is executed
  • the flow of the method embodiments as described above may be included.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM or a random access memory RAM, a magnetic disk, or an optical disk.

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Abstract

La présente invention concerne des modes de réalisation d'un procédé et d'un appareil permettant de déterminer une taille de bloc de transport (TBS). Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des informations de commande envoyées par un dispositif réseau, les informations de commande comprenant des informations d'indication et des informations de ressource concernant un canal de données; le dispositif terminal détermine, selon un premier ensemble de relations de mappage et les informations d'indication, un mode de modulation et un débit de codage, et détermine le nombre de ressources temps-fréquence selon les informations de ressources concernant le canal de données; le dispositif terminal détermine une TBS selon le mode de modulation, le débit de codage et le nombre de ressources temps-fréquence; et le dispositif terminal décode, sur la base de la TBS, le canal de données transporté sur les ressources temps-fréquence ou le dispositif terminal envoie, sur la base de la TBS, le canal de données sur les ressources temps-fréquence. Les modes de réalisation de la présente invention ont l'avantage d'améliorer l'efficacité de détermination de la TBS, améliorant ainsi l'efficacité de transmission du canal de données.
PCT/CN2018/091692 2017-06-16 2018-06-15 Procédé et appareil pour déterminer une taille de bloc de transport WO2018228579A1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP20173784.8A EP3780441B1 (fr) 2017-06-16 2018-06-15 Procédé de détermination de taille de bloc de transport et appareil
CN201880039739.XA CN110999464A (zh) 2017-06-16 2018-06-15 确定传输块大小的方法及装置
JP2019566809A JP6891979B2 (ja) 2017-06-16 2018-06-15 トランスポートブロックサイズを決定する方法、装置及びプログラム
KR1020197038142A KR102276760B1 (ko) 2017-06-16 2018-06-15 송신 블록 크기를 결정하기 위한 방법 및 장치
RU2019143451A RU2737614C1 (ru) 2017-06-16 2018-06-15 Способ и устройство для определения размера транспортного блока
EP18817587.1A EP3468277B1 (fr) 2017-06-16 2018-06-15 Procédé et appareil pour déterminer une taille de bloc de transport
AU2018284901A AU2018284901B2 (en) 2017-06-16 2018-06-15 Method and apparatus for determining transport block size
ES18817587T ES2814624T3 (es) 2017-06-16 2018-06-15 Método y aparato para determinar el tamaño de bloque de transporte
BR112019026455-8A BR112019026455B1 (pt) 2017-06-16 2018-06-15 Método para determinar tamanho de bloco de transporte, e aparelho
US16/172,850 US10447425B2 (en) 2017-06-16 2018-10-28 Method and apparatus for determining transport block size
US16/584,958 US11575462B2 (en) 2017-06-16 2019-09-27 Method and apparatus for determining transport block size

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CN201710686578.0A CN109152052B (zh) 2017-06-16 2017-08-11 确定传输块大小的方法及装置
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US12034584B2 (en) 2020-05-30 2024-07-09 Huawei Technologies Co., Ltd. Signal sending method, signal receiving method, and related apparatus
WO2022056879A1 (fr) * 2020-09-18 2022-03-24 华为技术有限公司 Procédé et appareil de communication
CN114138099A (zh) * 2021-11-15 2022-03-04 Oppo广东移动通信有限公司 用于配置存储器的方法、装置和终端
WO2023226992A1 (fr) * 2022-05-25 2023-11-30 华为技术有限公司 Procédé et appareil de communication

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