WO2017166078A1 - Procédé et dispositif pour déterminer une taille de bloc de bit - Google Patents

Procédé et dispositif pour déterminer une taille de bloc de bit Download PDF

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Publication number
WO2017166078A1
WO2017166078A1 PCT/CN2016/077764 CN2016077764W WO2017166078A1 WO 2017166078 A1 WO2017166078 A1 WO 2017166078A1 CN 2016077764 W CN2016077764 W CN 2016077764W WO 2017166078 A1 WO2017166078 A1 WO 2017166078A1
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Prior art keywords
tbs
index
bits
prbs
value
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PCT/CN2016/077764
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English (en)
Chinese (zh)
Inventor
刘越
罗帆
赵晶
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华为技术有限公司
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Priority to CN201680083497.5A priority Critical patent/CN108781454B/zh
Priority to PCT/CN2016/077764 priority patent/WO2017166078A1/fr
Publication of WO2017166078A1 publication Critical patent/WO2017166078A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a method and a device for determining a bit block size.
  • an evolved base station eNodeB, eNB schedules a user equipment (UE) to implement uplink and downlink data transmission.
  • UE user equipment
  • CSI Channel State Information
  • MCS Modulation and Coding Scheme
  • TBS TBS index
  • DCI Downlink Control Information
  • the R12 protocol defines two sets of downlink MCS-TBS tables, a set of uplink MCS-TBS tables, and a set of TBS forms shared by the uplink and downlink.
  • the MCS-TBS table is queried, so that the TBS index is determined according to the MCS index, and then the TBS table is queried according to the TBS index to determine the bit block size.
  • the downlink MCS-TBS table can support the MCS of the downlink 256 Quadrature Amplitude Modulation (256QAM).
  • 256QAM Quadrature Amplitude Modulation
  • the index of the TBS is 0-26.
  • the TBS index adopts the TBS index corresponding to the highest order of the MCS. In general, the larger the TBS index, the larger the bit block.
  • the downlink scheduling resource overhead is relatively large, and the uplink scheduling resource overhead is less.
  • the resource elements (Resource Element, RE) available in each resource block (RB) in the uplink scheduling are more.
  • the REs available in the RB cannot be utilized as much as possible.
  • the uplink code rate is relatively low, and the uplink peak rate is lost, which results in low uplink peak throughput and low spectrum efficiency.
  • the embodiment of the present invention provides a method and a device for determining a bit block size.
  • the uplink code rate is increased, and the loss caused by the uplink peak rate is reduced, thereby improving the uplink peak throughput and the spectrum efficiency.
  • an embodiment of the present invention provides a method for determining a bit block size, where the method includes:
  • the device determines the TBS index according to the MCS index query first index table, and queries the second index table according to the TBS index and the number of PRBs to determine the destination bit block size.
  • the second index table includes at least one added second TBS index, and the value of the added second TBS index is I second increased TBS , where 34 ⁇ I The second increase is TBS ⁇ 36.
  • the method for determining a bit block size according to the embodiment of the present invention wherein the TBS index corresponding to each MCS index in the first index table is increased, and the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the TBS is The larger the index, the larger the corresponding bit block.
  • the method for determining a bit block size according to the embodiment of the present invention the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the available REs in the RB can be utilized as much as possible to improve the uplink code rate and reduce the loss caused by the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 106000 bits ⁇ B ⁇ 109000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the method before querying the first index table to determine the TBS index, the method further includes:
  • the protocol index table is an index table applicable to a physical uplink shared channel PUSCH defined by Long Term Evolution (LTE);
  • the protocol TBS table is defined for LTE TBS table.
  • the querying the second index table according to the TBS index and the number of PRBs, and determining the destination bit block size further includes:
  • the uplink data is transmitted with a code rate less than the channel coding, and the size of the uplink data is less than or equal to the size of the destination bit block.
  • the querying the second index table according to the TBS index and the number of PRBs, and determining the destination bit block size further includes:
  • the uplink data is transmitted with a code rate limit greater than the channel coding, and the size of the uplink data is less than or equal to the size of the destination bit block.
  • an embodiment of the present invention provides a device, including a processing module, configured to query a first index table to determine a TBS index, where the first index table stores a correspondence between the MCS index and the TBS index. Querying a second index table according to the TBS index and the number of PRBs, determining a size of the target bit block, where the second index table stores a correspondence between the TBS index, the number of the PRBs, and the bit block size; wherein the first base station or a terminal index table according to a protocol derived from the index table new MCS-TBS index table, comprising at least one additional first TBS index, the first increase TBS index value I, When TBS is increased , 27 ⁇ I first increases TBS ⁇ 36, the second index table includes at least one added second TBS index, and the value of the added second TBS index is I second increased TBS , where 34 ⁇ I The second increase is TBS ⁇ 36.
  • the TBS index corresponding to each MCS index in the first index table is increased, and the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the TBS index is larger.
  • the corresponding bit block is larger.
  • the more data transmitted according to the bit block the REs available in the RB can be utilized as much as possible. Therefore, the method for determining a bit block size according to the embodiment of the present invention, the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the available REs in the RB can be utilized as much as possible to improve the uplink code rate and reduce the loss caused by the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 106000 bits ⁇ B ⁇ 109000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the processing module is configured to generate the first index table according to the protocol index table and expand the protocol TBS before determining the TBS index according to the MCS index and querying the first index table.
  • the table generates the second index table, where the protocol index table is an index table applicable to the physical uplink shared channel PUSCH defined by the Long Term Evolution (LTE), and the protocol TBS table is a TBS table defined by the LTE.
  • LTE Long Term Evolution
  • the above device further includes:
  • a sending module configured to: after the processing, use the TBS index and the number of PRBs to query the second index table, determine the target bit block size, and send the uplink data by using a code rate less than the channel coding, where the uplink data is The size is less than or equal to the size of the destination bit block.
  • the sending module is further configured to: after the processing module queries the second index table according to the TBS index and the number of PRBs, and determines the target bit block size, the code rate is greater than the channel coding limit. Sending uplink data, the size of the uplink data is less than or equal to the size of the destination bit block.
  • an embodiment of the present invention provides an apparatus, including: a processor, configured to determine a TBS index according to an MCS index, where the first index table stores the MCS index and the TBS Corresponding relationship of the index; for querying the second index table according to the TBS index and the number of PRBs, determining the size of the destination bit block, the second index table storing the TBS index, the number of the PRBs, and the bits Corresponding relationship of the block size; wherein the first index table is a new MCS-TBS index table obtained by the base station or the terminal according to the protocol index table, and includes at least one added first TBS index, the added first TBS a first index value I increases TBS, 27 ⁇ I increase TBS ⁇ 36 first, the second index table comprises at least one additional second TBS index, said second increased value of I second TBS index increases TBS , where 34 ⁇ I second increases TBS ⁇ 36.
  • the TBS index corresponding to each MCS index in the first index table is increased, and the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the TBS index is larger.
  • the corresponding bit block is larger.
  • the more data transmitted according to the bit block the REs available in the RB can be utilized as much as possible. Therefore, the method for determining a bit block size according to the embodiment of the present invention, the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data. Can be as profitable as possible during the transmission process
  • the available REs in the RB are used to improve the uplink code rate and reduce the loss to the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 106000 bits ⁇ B ⁇ 109000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the processor generates the first index table according to the protocol index table before querying the first index table to determine the TBS index according to the MCS index, where the protocol index table is The index table applicable to the physical uplink shared channel PUSCH defined by the long-term evolution LTE; the extended protocol TBS table, the second index table is generated, and the protocol TBS table is a TBS table defined by the LTE.
  • the above device further includes:
  • a transmitter configured to: after the second index table is queried according to the TBS index and the number of PRBs, determine, by using the TBS index and the number of PRBs, determine, by using a code rate that is less than a channel coding, send uplink data, where the uplink data is The size is less than or equal to the size of the destination bit block.
  • the transmitter is further configured to: after the processor queries the second index table according to the TBS index and the number of PRBs, and determines the target bit block size, the code rate is greater than the channel coding limit. Sending uplink data, the size of the uplink data is less than or equal to the size of the destination bit block.
  • an embodiment of the present invention provides a base station, where the base station has a function of implementing behavior of a first base station in the foregoing method design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the structure of the base station includes a processor and a transmitter configured to support the first base station to perform a corresponding function in the above method.
  • the transmitter is configured to support communication between the base station and the terminal, and send information or instructions involved in the foregoing method to the terminal.
  • the base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
  • an embodiment of the present invention provides a terminal, where the terminal has a function of implementing terminal behavior in the design of the foregoing method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the module can be software and/or hardware
  • the structure of the terminal includes a receiver and a processor configured to support the terminal to perform corresponding functions in the above methods.
  • the transmitter is configured to support communication between the terminal and the base station, and receive information or instructions involved in the foregoing method sent by the base station.
  • the terminal can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
  • an embodiment of the present invention provides a communication system, where the system includes the base station and the terminal in the foregoing aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the base station, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the terminal, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a chip system, including: at least one processor, a memory, an input/output portion, and a bus; and the at least one processor acquires an instruction in the memory through the bus to use The implementation function of the base station involved in implementing the above method is implemented.
  • an embodiment of the present invention provides a chip system, including: at least one processor, a memory, an input/output portion, and a bus; and the at least one processor acquires an instruction in the memory through the bus to use The design function of the terminal involved in implementing the above method is implemented.
  • the method and device for determining the bit block size according to the embodiment of the present invention determine the TBS index according to the MCS index query first index table, and query the second index table according to the TBS index and the number of PRBs to determine the target bit block size.
  • the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the corresponding TBS index is larger, and the corresponding bit block is larger.
  • the bigger the more data transmitted according to the bit block, the REs available in the RB can be utilized as much as possible.
  • the method for determining a bit block size according to the embodiment of the present invention the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the available REs in the RB can be utilized as much as possible to improve the uplink code rate and reduce the loss caused by the uplink peak rate. Improve upstream peak throughput and spectrum efficiency.
  • FIG. 1 is a schematic structural diagram of a wireless communication system to which a method for determining a bit block size according to the present invention is applied;
  • FIG. 2 is a flowchart of a method for determining a bit block size according to the present invention
  • Embodiment 1 of an apparatus according to the present invention
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of the device according to the present invention.
  • the 36.213 protocol of the 3rd Generation Partnership Project (3GPP) stipulates that: when uplink resource scheduling and downlink resource scheduling, the base station according to the CSI indication signal to interference plus noise ratio (SINR) Selecting the corresponding MCS, determining the TBS index according to the MCS index MCS-TBS table, and then indexing the TBS table according to the TBS index and the number of allocated PRBs, thereby determining the size of the transmitted bit block, wherein the MCS has 32 different types.
  • the type of the MCS index is 0 to 31, and the TBS index is 0 to 26.
  • two sets of downlink MCS-TBS tables are defined for downlink resource scheduling, one of which supports the high-level configuration altCQI-Table-r12 field, which can be seen in Table 1, and the other set is supported by the upper layer without configuring altCQI-Table-r12. Field; for uplink resource scheduling, a set of uplink MCS-TBS is defined, as shown in Table 2; for downlink scheduling and uplink scheduling, the TBS table is shared.
  • the first column is the MCS Index (MCS Index), which is denoted as I MCS
  • the second column is the modulation order (Modulation Order), which is recorded as Q m
  • the third column is the transport block size (Transport Block Size).
  • TBS index TBS Index
  • I TBS TBS index
  • the fourth column of Table 2 is the redundancy version (Redundancy Version).
  • TBS indexes 27 to 33 are added to the downlink MCS-TBS table.
  • the TBS table is also extended to add data corresponding to the Physical Downlink Shared Channel (PDSCH) and the TBS indexes 27 to 33.
  • PDSCH Physical Downlink Shared Channel
  • the above extensions to Table 1 and Table 3 are only applicable to the terminal supporting downlink 256QAM.
  • the downlink scheduling resource overhead is relatively large, and the uplink scheduling resource overhead is less.
  • the resource element RE available in each resource block RB in the uplink scheduling is more.
  • the TBS index corresponding to the highest order of the MCS is used, for example, when the MCS index is 28, according to Table 2, the TBS index is determined to be 26, because the size of the bit block corresponding to the TBS index is Limited, so it is not possible to utilize the REs available in the RB as much as possible.
  • the available REs in the RB are not utilized to the maximum, the uplink code rate in the uplink data transmission is relatively low, and the uplink peak rate is lost, which results in low uplink peak throughput and low spectrum efficiency.
  • the embodiment of the present invention provides a method and a device for determining a bit block size, which improves the uplink bit rate and reduces the loss caused by the uplink peak rate by using the available REs in the RB, thereby improving the uplink peak throughput and Spectral efficiency.
  • GSM Global System for Mobile communications
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FDMA Frequency Division Multiple Addressing
  • OFDMA orthogonal frequency Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • E-UTRA E-UTRA systems and other such communication systems.
  • the terminal involved in the present application may be a wireless terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal. Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the present application relates to a base station, which refers to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • FIG. 1 is a schematic structural diagram of a wireless communication system to which the bit block size determining method of the present invention is applied.
  • a base station or a terminal determines a TBS index according to an MCS index, and further determines a bit block size.
  • the bit block size determining method of the present invention will be described in detail based on FIG. Specifically, see Figure 2.
  • FIG. 2 is a flow chart of a method for determining a bit block size according to the present invention. This embodiment is applicable to a scenario in which the terminal supports uplink 256QAM. Specifically, the embodiment includes the following steps:
  • the technical solutions provided in the embodiments of the present invention can be applied to the base station or the terminal. If not specified, the base station and the terminal are applicable.
  • the first index table stores a correspondence between the MCS index and the TBS index, where the TBS index is greater than a TBS index determined according to the MCS index query protocol index table, and the protocol index
  • the table is an index table applicable to the physical uplink shared channel PUSCH defined by the Long Term Evolution (LTE), where the first index table is a new MCS-TBS index table obtained by the base station or the terminal according to the protocol index table, and includes at least one added first TBS index, said first increased value I TBS index first increases TBS, 27 ⁇ I first increase TBS ⁇ 36.
  • LTE Long Term Evolution
  • the low-order TBS index in the protocol index table is deleted, and the high-order TBS index is added.
  • the low-order TBS index refers to a TBS index with a relatively small index value
  • the high-order TBS index refers to a TBS index with a relatively large index value. That is, compared with the protocol index table (ie, Table 2), the TBS index corresponding to the lower-order MCS index of the part of the first index table for determining the TBS index according to the MCS index is deleted.
  • a high-order TBS index is added, which is hereinafter referred to as a first TBS, and the value of the first TBS is increased by a first TBS , and the value is between 27 and 36.
  • the first TBS may be multiple or may be one.
  • One For example, refer to Table 2, delete the TBS index with index values 1, 3, 5, and 7, and move the TBS with index values 2, 4, 6, and 8 up, and then increase the index value to 27, 28, 29, 30 TBS index.
  • the MCS index with an index value of 1 to 28 the TBS index corresponding to each MCS index is increased compared to the original table 2.
  • the second index table Query the second index table according to the TBS index and the number of PRBs to determine a size of the target bit block, where the second index table stores the correspondence between the TBS index, the number of the PRBs, and the bit block size.
  • the second index table may be understood as a TBS table obtained by extending the original TBS table, that is, the TBS table specified by the LTE protocol, the second index table including at least one added second TBS index, and the added second TBS index
  • the value of I is second increased by TBS , where 34 ⁇ I second increases TBS ⁇ 36.
  • the TBS table is extended to expand the corresponding bit block size when the TBS index value is 27 to 30.
  • the protocol TBS table is extended to generate the second index table.
  • the extended TBS table is as shown in Table 3. Therefore, in the embodiment of the present invention, the first TBS index added in the first index table is an index value. From 27 to 33, the data in Table 3 can continue to be used. That is, in the embodiment of the present invention, the table 3 is used as the protocol TBS index table, and the TBS index corresponding to the lower-order MCS index is deleted in the second index table provided by the embodiment of the present invention. Adding a high-order TBS index, which is hereinafter referred to as a second TBS, the value of the second TBS is a second increase TBS , the value is between 34 and 36, and the second TBS may be multiple or multiple One.
  • a high-order TBS index which is hereinafter referred to as a second TBS
  • the value of the second TBS is a second increase TBS
  • the value is between 34 and 36
  • the second TBS may be multiple or multiple One.
  • the base station determines the MCS index according to the CSI reported by the terminal, determines the TBS index according to the MCS index, and determines the destination according to the TBS index and the bit block size corresponding to the number of configurable PRBs and the size of the uplink data.
  • the bit size is fast, and the number of PRBs corresponding to the MCS index and the destination bit block size is sent to the terminal.
  • the MCS index and the number of PRBs are filled in the DCI according to a certain format to obtain scheduling information, and the physical downlink control channel is adopted.
  • the Physical Downlink Control Channel (PDCCH) transmits the DCI to the terminal, so that the terminal transmits the uplink data according to the destination bit block size.
  • PDCCH Physical Downlink Control Channel
  • the destination bit block size is determined according to the MCS index and the number of PRBs sent by the base station, and then the uplink data is determined according to the destination bit block size. Specifically, the terminal also stores the first index table and the second index table locally. After receiving the DCI, the terminal parses the MCS index and the number of PRBs in the DCI, and determines, according to the MCS index and the number of PRBs, the uplink data is sent. Size, the destination bit block size. Then, uplink data is transmitted to the base station according to the destination bit block size. Generally, when the channel is relatively good, the size of the destination block is similar to the size of the uplink data, and even larger than the size of the uplink data. When the channel is poor and the available resources are small, the destination block size is smaller than the uplink. The size of the data.
  • the base station or the terminal determines the TBS index according to the MCS index query first index table, and queries the second index table according to the TBS index and the number of PRBs to determine the target bit block size.
  • the TBS index corresponding to each MCS index in the first index table is increased, the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the corresponding TBS index is larger, and the corresponding bit block is larger.
  • the more data transmitted according to the bit block the REs available in the RB can be utilized as much as possible.
  • the method for determining a bit block size according to the embodiment of the present invention the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the available REs in the RB can be utilized as much as possible to improve the uplink code rate and reduce the loss caused by the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the first TBS index added from the first index table is an index value of 27 to 34, an index value of 27 to 35, and an index value of 27 to 36.
  • the first index table is an MCS-TBS index table with an index value of 27 to 34 added.
  • the first index table obtained according to the protocol index table is, for example, Table 4.
  • the protocol index table that is, in Table 2 and Table 4
  • the TBS index with the index values of 1, 3, 5, 7, 9, 10, 19, 26 is removed.
  • I MCS ⁇ 21 for the same MCS index
  • the TBS index obtained according to Table 4 is larger than the TBS index obtained according to Table 2, and the bit block obtained according to the TBS index is relatively large, so that the uplink data transmission process is performed.
  • the REs available in the RB can be utilized as much as possible to improve the uplink bit rate and reduce the loss to the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • I MCS ⁇ 21 the bit block size when the I TBS is 27 to 34 is expanded in the TBS table.
  • bit block is incremented between different TBS indexes or PRBs, and the step size is gradually increased, and the padding filling rate of the bit block is kept consistent (it can be converted into a code rate difference to calculate data).
  • I TBS 35, N PRB 1
  • the bit block size is 1064 bits
  • the code rate is 0.92
  • the code rate difference between different TBS indexes is 0.4
  • I TBS 35, N PRB 2
  • the bit block 2056 corresponding to I TBS 34 and N PRB 2 (the code rate is 0.89), is greater than 1056, less than 2112, therefore, 2056 belongs to 1056.
  • an MCS-TBS index table with an index value of 27 to 35 is added to the first index table.
  • the first index table obtained according to the protocol index table is, for example, Table 7.
  • the protocol index table that is, in Table 2 and Table 7, by extracting the I TBS corresponding to the low-order MCS index, the TBS index with the index values of 1, 3, 5, 7, 9, 10, 14, 26 is removed. Increase the high-order TBS index with an index value of 27 to 35.
  • I MCS ⁇ 20 for the same MCS index, the TBS index obtained according to Table 7 is larger than the TBS index obtained according to Table 2, and the bit block obtained according to the TBS index is relatively large, so that the uplink data transmission process is performed.
  • the REs available in the RB can be utilized as much as possible to improve the uplink bit rate and reduce the loss to the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • I MCS ⁇ 20 the bit block size when the I TBS is 27 to 35 is expanded in the TBS table.
  • the bit block size when the I TBS is 27 to 33 refer to Table 3.
  • the bit block size when the I TBS is 34 or 35 can be obtained according to Table 6.
  • an MCS-TBS index table with an index value of 27 to 35 is added to the first index table.
  • the first index table obtained according to the protocol index table is, for example, Table 8.
  • the protocol index table that is, in Table 2 and Table 8
  • the TBS with the index values of 1, 3, 5, 7, 9, 10, 12, 14, 26 is removed. Index, increase the high-order TBS index with an index value of 27 to 36.
  • I MCS ⁇ 19 for the same MCS index
  • the TBS index obtained according to Table 8 is larger than the TBS index obtained according to Table 2, and the bit block obtained according to the TBS index is relatively large, so that the uplink data transmission process is performed.
  • the REs available in the RB can be utilized as much as possible to improve the uplink bit rate and reduce the loss to the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • I MCS ⁇ 19 the bit block size when the I TBS is 27 to 36 is expanded in the TBS table.
  • the bit block size when the I TBS is 34, 35, and 36 can be obtained according to Table 6.
  • the MCS-TBS index table with an index value of 27 to 36 is added to the first index table, and the minimum value of the bit block corresponding to the TBS with an index value of 34 to 36 is added. Specifically, see Table 9.
  • the MCS-TBS index table with an index value of 27 to 36 is added to the first index table, and the maximum value of the bit block corresponding to the TBS with an index value of 34 to 36 is added. Specifically, see Table 10.
  • the destination bit block size is B
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 101000 bits ⁇ B ⁇ 104000 bits.
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the terminal queries the second index table according to the TBS index and the number of PRBs, determines the target bit block size, and further reduces the code rate of the channel coding.
  • the uplink data is restricted from being transmitted, and the size of the uplink data is less than or equal to the size of the destination bit block. For example, uplink data is transmitted at a code rate of less than 0.93. In this way, it can meet the industry standard for sending uplink data.
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the terminal queries the second index table according to the TBS index and the number of PRBs, determines the destination bit block size, and further transmits the code rate limit greater than the channel coding.
  • Uplink data the size of the uplink data is less than or equal to the size of the destination bit block. For example, uplink data is transmitted at a code rate greater than 0.93 and less than 0.97. In this way, it can meet the industry standard for sending uplink data.
  • FIG. 3 is a schematic structural diagram of Embodiment 1 of an apparatus according to the present invention.
  • the device provided in this embodiment can be The steps are as follows: a terminal or a base station, which can implement various steps of the method applied to the device provided by any embodiment of the present invention.
  • the device provided in this embodiment includes:
  • the processing module 11 is configured to query the first index table to determine a TBS index, where the first index table stores a correspondence between the MCS index and the TBS index.
  • the processing module 11 is further configured to query the second index table according to the TBS index and the number of PRBs to determine a size of the target bit block, where the second index table stores the TBS index and the number of the PRBs. And a correspondence of bit block sizes;
  • the first index table comprises at least one additional first TBS index, said first increased value I TBS index first increases TBS, 27 ⁇ I first increase TBS ⁇ 36;
  • the second index table includes at least one added second TBS index, and the value of the added second TBS index is I second increasing TBS , where 34 ⁇ I second increasing TBS ⁇ 36.
  • the device provided by the embodiment of the present invention determines the TBS index according to the MCS index query first index table, and queries the second index table according to the TBS index and the number of PRBs to determine the target bit block size.
  • the TBS index corresponding to each MCS index in the first index table is increased, the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the corresponding TBS index is larger, and the corresponding bit block is larger.
  • the bigger the more data transmitted according to the bit block, the REs available in the RB can be utilized as much as possible.
  • the method for determining a bit block size according to the embodiment of the present invention the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the available REs in the RB can be utilized as much as possible to improve the uplink code rate and reduce the loss caused by the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 106000 bits ⁇ B ⁇ 109000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the processing module 11 is configured to generate the first index table according to the protocol index table before determining the TBS index according to the MCS index and querying the first index table. And extending the protocol TBS table to generate the second index table, where the protocol index table is An index table applicable to the physical uplink shared channel PUSCH defined by the Long Term Evolution (LTE), the protocol TBS table being a TBS table defined by LTE.
  • LTE Long Term Evolution
  • the device provided by the embodiment of the present invention further includes:
  • the sending module 12 is configured to, after the processing module 11 queries the second index table according to the TBS index and the number of PRBs, determine the target bit block size, and send uplink data by using a code rate less than the channel coding limit, where the uplink The size of the data is less than or equal to the size of the destination block.
  • the sending module 12 is further configured to: after the processing module 11 queries the second index table according to the TBS index and the number of PRBs, and determines the target bit block size, The code rate of the channel coding limits transmitting uplink data, and the size of the uplink data is less than or equal to the size of the destination bit block.
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of the device according to the present invention.
  • the device provided in this embodiment may be disposed on a terminal or a base station, and may implement various steps of the method applied to the device provided by any embodiment of the present invention.
  • the device provided in this embodiment includes:
  • the processor 21 is configured to query a first index table to determine a TBS index according to an MCS index, where the first index table stores a correspondence between the MCS index and the TBS index.
  • the processor 21 is further configured to query the second index table according to the TBS index and the number of PRBs to determine a size of the target bit block, where the second index table stores the TBS index and the number of the PRBs. And a correspondence of bit block sizes;
  • the first index table comprises at least one additional first TBS index, said first increased value I TBS index first increases TBS, 27 ⁇ I first increase TBS ⁇ 36;
  • the second index table includes at least one added second TBS index, and the value of the added second TBS index is I second increasing TBS , where 34 ⁇ I second increasing TBS ⁇ 36.
  • the device provided by the embodiment of the present invention determines the TBS index according to the MCS index query first index table, and queries the second index table according to the TBS index and the number of PRBs to determine the target bit block size.
  • the TBS index corresponding to each MCS index in the first index table is increased, the bit block size corresponding to the newly added TBS index is expanded in the second index table, and the corresponding TBS index is larger, and the corresponding bit block is larger.
  • the bigger the more data transmitted according to the bit block, the REs available in the RB can be utilized as much as possible.
  • the method for determining a bit block size according to the embodiment of the present invention the first index table and the second index table are matched with the uplink 256 AQM, and the bit block size determined according to the first index table and the second index table is in the uplink data.
  • the RB can be used as much as possible during the transmission process.
  • the RE improves the uplink bit rate and reduces the loss to the uplink peak rate, thereby improving the uplink peak throughput and spectrum efficiency.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 25000 bits ⁇ B ⁇ 26000 bits;
  • the number of PRBs is 50, and the value of B is 50000 bits ⁇ B ⁇ 52000 bits;
  • the number of PRBs is 100, and the value of B is 100000 bits ⁇ B ⁇ 103000 bits;
  • the value of B is 106000 bits ⁇ B ⁇ 109000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 100, and the value of B is 105000 bits ⁇ B ⁇ 108000 bits;
  • the value of B is 114000 bits ⁇ B ⁇ 117000 bits.
  • the size of the destination bit block is B;
  • the number of PRBs is 25, and the value of B is 27000 bits ⁇ B ⁇ 28000 bits;
  • the number of PRBs is 100, and the value of B is 109000 bits ⁇ B ⁇ 112000 bits;
  • the value of B is 118000 bits ⁇ B ⁇ 121000 bits.
  • the processor 21 generates the first index table according to the protocol index table before querying the first index table to determine the TBS index according to the MCS index.
  • the protocol index table is an index table applicable to the physical uplink shared channel PUSCH defined by the Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • the extended protocol TBS table generates the second index table, where the protocol TBS table is a TBS table defined by the LTE.
  • the foregoing apparatus further includes:
  • the transmitter 22 is configured to query, by the processor 21, the second index table according to the TBS index and the number of PRBs, determine the target bit block size, and send the uplink data by using a code rate less than the channel coding, where the uplink The size of the data is less than or equal to the size of the destination block.
  • the transmitter is further configured to: after the processor 21 searches the second index table according to the TBS index and the number of PRBs, determines the target bit block size, and sends the packet with a code rate greater than the channel coding limit.
  • Uplink data the size of the uplink data is less than or equal to the size of the destination bit block.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé et un dispositif pour déterminer une taille de bloc de bit. Le procédé consiste : à rechercher dans une première table d'indices selon des indices MCS pour déterminer des indices TBS ; et à rechercher dans une seconde table d'indices selon les indices TBS et des quantités de PRB pour déterminer des tailles de bloc de bit de destination. Durant ce processus, les indices TBS correspondant à l'ensemble des indices MCS dans la première table d'indices sont accrus, et les tailles de bloc de bit correspondant à des indices TBS nouvellement ajoutés dans la seconde table d'indices sont étendues. En outre, un grand indice TBS indique un grand bloc de bit correspondant. Par conséquent, la première table d'indices et la seconde table d'indices sont adaptées à une AQM256 de liaison montante. Durant un processus de transmission de données de liaison montante, des RE disponibles dans un RB peuvent être utilisés autant que possible pour augmenter un débit binaire de liaison montante et réduire la perte d'un débit maximal de liaison montante, permettant ainsi d'améliorer le débit maximal de liaison montante et l'efficacité spectrale.
PCT/CN2016/077764 2016-03-29 2016-03-29 Procédé et dispositif pour déterminer une taille de bloc de bit WO2017166078A1 (fr)

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