WO2021164449A1 - 调制编码策略的配置方法及装置、功率配置方法及装置、设备和存储介质 - Google Patents
调制编码策略的配置方法及装置、功率配置方法及装置、设备和存储介质 Download PDFInfo
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
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- 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
- H04L27/36—Modulator circuits; Transmitter circuits
Definitions
- This application relates to the field of data communication, for example, to a modulation and coding strategy, a power configuration method, a device, a device, and a storage medium.
- NB-IoT Narrow Band Internet of Things
- QPSK Quadrature Phase Shift Keying
- MCS Modulation and Coding Scheme
- 16QAM is non-constant amplitude modulation
- the NB-IoT user terminal needs to know the power configuration of the data and reference signals during demodulation.
- MCS configuration and power configuration method that supports 16QAM in the related art. How to realize the modulation, coding and power configuration of data under 16QAM has become the focus of research in the field.
- This application provides a modulation and coding strategy, a power configuration method, device, equipment, and storage medium.
- the embodiment of the present application provides a method for configuring a modulation and coding strategy, and the method includes:
- MCS Modulation and Coding Scheme
- the first modulation and coding strategy set includes at least one modulation and coding strategy, and the highest order modulation mode corresponding to the first modulation and coding strategy set is 16 quadrature amplitude modulation.
- the embodiment of the present application provides a power configuration method, which includes:
- the first symbol is an Orthogonal Frequency Division Multiplexing (OFDM) symbol of a load reference signal
- the second symbol is an OFDM symbol of a non-load reference signal
- the second symbol is The OFDM symbol of the loaded reference signal
- the first symbol is the OFDM symbol of the non-loaded reference signal.
- OFDM Orthogonal Frequency Division Multiplexing
- the embodiment of the present application provides a modulation and coding strategy configuration device, which includes:
- the strategy configuration module is set to configure a modulation and coding strategy for data based on the first modulation and coding strategy (Modulation and Coding Scheme, MCS) set;
- MCS Modulation and Coding Scheme
- the first modulation and coding strategy set includes at least one modulation and coding strategy, and the highest order modulation mode corresponding to the first modulation and coding strategy set is 16 quadrature amplitude modulation.
- An embodiment of the present application provides a power configuration device, which includes:
- a power determining module configured to determine the average power of the second symbol according to the average power of the first symbol
- a power configuration module configured to configure power for data on the first symbol and the second symbol based on the average power of the first symbol and the average power of the second symbol, respectively;
- the first symbol is an OFDM symbol carrying a reference signal
- the second symbol is an OFDM symbol carrying a reference signal
- the second symbol is an OFDM symbol carrying a reference signal
- the first symbol is The OFDM symbol of the unloaded reference signal.
- An embodiment of the present application provides a device, which includes:
- One or more processors are One or more processors;
- Memory set to store one or more programs
- the one or more programs are executed by the one or more processors, so that the one or more processors implement the modulation and coding strategy configuration method or the power configuration method as described in any embodiment of the present application.
- the embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the modulation and coding strategy configuration method or power configuration as described in any of the embodiments of the present application is implemented. method.
- FIG. 1 is a flowchart of a method for configuring a modulation and coding strategy according to an embodiment of the present application
- FIG. 2 is a flowchart of a method for configuring a modulation and coding strategy in uplink transmission according to an embodiment of the present application
- Fig. 3 is a flowchart of a method for configuring a modulation and coding strategy during in-band deployment according to an embodiment of the present application
- FIG. 4 is an exemplary diagram of a method for configuring a modulation and coding strategy according to an embodiment of the present application
- FIG. 5 is an exemplary diagram of another modulation and coding strategy configuration method provided by an embodiment of the present application.
- FIG. 6 is a flowchart of a power configuration method provided by an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of an apparatus for configuring a modulation and coding strategy according to an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of a power configuration device provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a device provided by an embodiment of the present application.
- FIG. 1 is a flowchart of a method for configuring a modulation and coding strategy provided by an embodiment of the present application.
- the embodiment of the present application may be applicable to the case where the maximum modulation mode is increased to 16QAM.
- the method may be provided by an embodiment of the present application.
- the modulation and coding strategy configuration device is executed, and the device can be implemented by software and/or hardware. Referring to FIG. 1, the method of the embodiment of the present application specifically includes the following steps:
- Step 101 Configure a modulation and coding strategy for data based on a first modulation and coding strategy (Modulation and Coding Scheme, MCS) set; wherein, the first modulation and coding strategy set includes at least one modulation and coding strategy, and the first modulation and coding strategy The highest-order modulation mode corresponding to the strategy set is 16 Quadrature Amplitude Modulation (16QAM).
- MCS Modulation and Coding Scheme
- the MCS set may be expressed in the form of a table, or may be expressed in other ways, and this embodiment is only for illustration and not limitation. If the MCS set is represented in the form of a table, the first MCS set is the first MCS table.
- one MCS corresponds to a modulation method and a data transmission size (Transport Block Size, TBS) index, where the TBS is the number of bits of the data transmission block, and the TBS index corresponds to The corresponding relationship of the number of bits in the data transmission block is defined by the TBS table in the standard protocol.
- the TBS index is the TBS serial number.
- the communication node configures the MCS for the data, it will select one from the first MCS set to encode and modulate the data.
- the first set of modulation and coding strategies includes T modulation and coding strategies, where 16 ⁇ T ⁇ 32.
- the modulation mode corresponding to the MCS at least includes Quadrature Phase Shift Keying (QPSK) and 16QAM.
- QPSK Quadrature Phase Shift Keying
- 16QAM 16QAM
- the first MCS set is a first MCS table
- the first MCS table includes QPSK modulation and 16QAM modulation.
- the number of MCS corresponding to the QPSK modulation mode in the first MCS set is 14.
- the number of MCS corresponding to the QPSK modulation mode is 14.
- MCS indexes 0 to 13 correspond to TBS indexes 0 to 13, and the modulation mode is QPSK.
- the MCS index is the MCS serial number.
- the number of MCS corresponding to 16QAM in the first MCS set is L, where L is a positive integer greater than or equal to 12.
- the largest MCS index corresponds to TBS index 21 or TBS index 22.
- the index is the serial number.
- the first MCS set may only include two modulation modes, QPSK and 16QAM modulation, then the number of configurable MCS is 14+L.
- L can be a positive integer greater than or equal to 12.
- the modulation and coding strategy in the first modulation and coding strategy set includes N groups, and the modulation and coding strategy in each group corresponds to different modulation modes, but the data transmission size is the same, where N is A positive integer greater than or equal to 4.
- the MCS in the first MCS set, can be divided into N groups.
- the N groups of MCS correspond to N TBSs respectively.
- the MCSs in the group have the same TBS and different modulation modes, and the N is greater than Or a positive integer equal to 4.
- each group of MCS includes two MCSs, and the two MCSs respectively correspond to QPSK modulation and 16QAM modulation. That is to say, in the first MCS set, there are N pairs of MCSs with overlapping TBSs, the TBSs of the two MCSs of each pair are the same, and the modulation modes are QPSK and 16QAM modulation respectively.
- the corresponding N TBSs can be configured with QPSK and 16QAM modulation modes. These N TBSs have a higher code rate when configured with QPSK modulation, and have a lower code rate when configured with 16QAM modulation.
- MCS modulation method and code rate suitable for channel transmission.
- step 101 further includes:
- Step 201 During uplink transmission, the configuration range of the modulation and coding strategy is modulation and coding strategy index 0 to 13+N, where N is a positive integer greater than or equal to 4.
- the range of MCS available for configuration data based on the first MCS set is MCS index 0 to 13+N.
- the uplink data transmission supports 16QAM
- one MCS is selected from the MCS index 0 to 13+N of the first MCS set, and the data is encoded and modulated.
- the maximum supported TBS for uplink 16QAM is TBS13, so the MCS that can be used for configuration data includes: 14 QPSK modulated MCS (MCS 0 to 13), N TBS overlapped 16QAM modulated MCS (MCS 14 to MCS) 13+N), it can be understood that N can be a positive integer greater than or equal to 4.
- step 101 further includes:
- Step 202 When the deployment mode is in-band (In Band) deployment, the configuration range of the modulation and coding strategy is the modulation and coding strategy index 0 to 16+N or 0 to 17+N, where N is greater than or equal to 4. Positive integer.
- the range of MCS that can be used for configuration data is MCS index 0 to 16+N, or MCS index 0 to 17+ N.
- MCS index 0 to 16+N MCS index 0 to 16+N
- MCS index 0 to 17+ N MCS index 0 to 17+ N.
- the MCS that can be used for configuration data includes: 14 QPSK modulated MCS (MCS 0 to 13), N TBS overlapping 16QAM Modulated MCS (MCS 14 to MCS 13+N), TBS 14, 15, 16 corresponding to MCS (MCS 14+N to 16+N).
- the MCS that can be used for configuration data also includes MCS 17+N.
- step 101 further includes:
- Step 203 When the high-level configuration parameter L1 indicates that 16-quadrature amplitude modulation is not supported, the configuration range of the modulation and coding strategy is modulation and coding strategy index 0-13.
- the range of MCS available for configuration data is MCS index 0-13.
- step 101 further includes:
- Step 204 When the high-level configuration parameter L1 indicates that 16 quadrature amplitude modulation is supported, a modulation and coding strategy is configured for the data based on the first modulation and coding strategy set; wherein the maximum number of repetitions of the physical shared channel corresponding to the data is less than or equal to 128.
- the maximum number of repetitions of the physical shared channel is less than or equal to 128. Because 16QAM has a higher modulation order, better channel conditions are required during demodulation. When the physical shared channel is configured with a large number of repetitions, it indicates that the signal-to-noise ratio is low and the channel conditions are not good, making it unsuitable for 16QAM transmission. Therefore, the first communication node will only support 16QAM modulation when the physical shared channel has a small number of repetitions or no repetitive transmission.
- the modulation and coding strategy configured for data is indicated by 5-bit downlink control information.
- the 5-bit downlink control information indicates an MCS in the first MCS set, and this MCS is used to encode and modulate data.
- one bit in the repetition count field in the downlink control information is used as one bit of the modulation and coding strategy indication information, wherein the modulation and coding strategy indication The information is used to indicate a modulation and coding strategy in the first modulation and coding strategy set.
- the highest bit of the repetition count field in the downlink control information is used as one bit of the MCS indication information.
- the MCS indication information is used to indicate one MCS in the MCS set.
- the number of repetitions field is used to indicate the number of repetitions of the physical shared channel.
- the high-level configuration parameter L1 may directly indicate whether 16QAM is supported, that is, whether 16QAM is enabled (enable 16QAM); it may also indirectly indicate whether 16QAM is supported, for example, the high-level configuration parameter L1 indicates whether Using the first MCS set and using the first MCS set indicates that 16QAM is supported, and if the first MCS set is not used, it indicates that 16QAM is not supported.
- the repetition count field in the downlink control information contains 4-bit information, because the first communication node will only indicate that it supports 16QAM modulation when the physical shared channel has a small repetition count or no repetition transmission, so the repetition count The domain does not need so much bit information to indicate the number of repetitions. Then, when 16QAM modulation is supported, the lower number of repetitions, that is, the low-order 3 bits in the repetition number field, are used to indicate the number of repetitions of the physical shared channel, and the highest 1-bit information is used as MCS indicator information One bit of (can be used as the least significant bit or the most significant bit of MCS indication information). Therefore, the MCS indication information will include 5-bit information, which can be used to indicate the first MCS set. In an embodiment, the 5-bit MCS indication information is used to indicate one MCS in the first MCS set.
- a modulation and coding strategy is configured for data through a preset first modulation and coding strategy set.
- the first modulation and coding strategy set may include multiple modulation and coding strategies, and each modulation and coding strategy may correspond to a modulation and coding strategy.
- Index, the highest order modulation method in the first set of modulation and coding strategies is 16 quadrature amplitude modulation, which realizes the compatibility of high modulation methods, enhances data communication capabilities, and improves data communication efficiency.
- the first set of modulation and coding strategies may be represented in the form of a table.
- an MCS table may be used to support the increase of the modulation order to 16QAM.
- the modulation mode corresponding to MCS includes QPSK and 16QAM, and the corresponding TBS includes at least TBS 0 to 21;
- MCS from 0 to 13 corresponds to TBS 0 to 13
- the modulation mode corresponding to MCS 0 to 13 is QPSK.
- the modulation mode corresponding to MCS 14 to 14+J is 16QAM, and 12 ⁇ J ⁇ 17.
- the TBS index corresponding to MCS index 14+J is TBS 21 or TBS22.
- N there are N pairs of MCSs with overlapping TBSs, that is, the two MCSs of each pair have the same TBS, and the modulation modes are QPSK and 16QAM modulation respectively.
- N is a positive integer greater than or equal to 4.
- the range of MCS that can be used for configuration data is MCS index 0 to 13+N.
- the range of MCS that can be used for configuration data is MCS index 0 to 16+N, or MCS index 0 to 17+N.
- the MCS table may be as shown in Table 1.
- the J is equal to 12, the N is equal to 5, and the maximum TBS is TBS 21.
- the modulation order 2 is QPSK modulation, and the modulation order 4 is 16QAM modulation.
- Table 1 is as follows:
- TBS index 0 2 0 1 2 1 2 2 2 3 2 3 4 2 4 5 2 5 6 2 6 7 2 7 8 2 8 9 2 9 10 2 10 11 2 11 12 2 12 13 2 13 14 4 9 15 4 10 16 4 11
- Another MCS table example can be as shown in Table 2.
- the J is equal to 13
- the N is equal to 5
- the maximum TBS is TBS 22.
- the modulation order 2 is QPSK modulation
- the modulation order 4 is 16QAM modulation.
- Table 2 is as follows:
- the MCS table is shown in Table 3.
- the J is equal to 13
- the N is equal to 6
- the maximum TBS is TBS 21.
- the modulation order 2 is QPSK modulation
- the modulation order 4 is 16QAM modulation.
- example four of the MCS table is shown in Table 4.
- the J is equal to 14, the N is equal to 6, and the maximum TBS is TBS 22.
- the modulation order 2 is QPSK modulation, and the modulation order 4 is 16QAM modulation.
- an example of another MCS table is shown in Table 5.
- the J is equal to 17, the N is equal to 10, and the maximum TBS is TBS 21.
- the modulation order 2 is QPSK modulation, and the modulation order 4 is 16QAM modulation.
- MCS index Modulation order TBS index 0 2 0 1 2 1 2 2 2 3 2 3 4 2 4 5 2 5 6 2 6 7 2 7 8 2 8 9 2 9 10 2 10 11 2 11 12 2 12 13 2 13 14 4 4 15 4 5 16 4 6 17 4 7 18 4 8 19 4 9 20 4 10 twenty one 4 11 twenty two 4 12 twenty three 4 13 twenty four 4 14 25 4 15 26 4 16 27 4 17 28 4 18 29 4 19 30 4 20 31 4 twenty one
- the MCS table is shown in Table 6.
- the J is equal to 17, the N is equal to 9, and the maximum TBS is TBS 22.
- the modulation order 2 is QPSK modulation
- the modulation order 4 is 16QAM modulation.
- MCS index Modulation order TBS index 0 2 0 1 2 1 2 2 2 3 2 3 4 2 4 5 2 5 6 2 6 7 2 7 8 2 8 9 2 9 10 2 10 11 2 11 12 2 12 13 2 13 14 4 5 15 4 6 16 4 7 17 4 8 18 4 9 19 4 10 20 4 11 twenty one 4 12 twenty two 4 13 twenty three 4 14 twenty four 4 15 25 4 16 26 4 17 27 4 18 28 4 19 29 4 20 30 4 twenty one 31 4 twenty two
- an MCS table is used to support modulation orders up to 16QAM, including:
- the modulation mode corresponding to MCS includes QPSK and 16QAM, and the corresponding TBS includes at least TBS 0 to 21;
- the number of MCS corresponding to the 16QAM modulation mode is L, and the L is greater than or equal to 12.
- the largest MCS index corresponds to TBS21 or TBS22.
- the range of MCS that can be used for configuration data is MCS index 0 to 16+N1, or MCS index 0 to 17+N1.
- the N1 is a positive integer less than 4.
- MCS table is shown in Table 7, where the number of MCS modulated by 16QAM is 12, corresponding to TBS 10 to 21 respectively. Based on Table 7, the range of MCS available for configuration data in inband mode is MCS index 0 to 17, or MCS index 0 to 18.
- MCS table is shown in Table 8, where the number of MCS modulated by 16QAM is 13, corresponding to TBS 9 to 21 respectively. Based on Table 8, the range of MCS that can be used for configuration data in in-band mode is MCS index 0 to 18, or MCS index 0 to 19.
- MCS table is shown in Table 9, where the number of MCS modulated by 16QAM is 14, corresponding to TBS 8 to 21 respectively. Based on Table 9, the range of MCS that can be used for configuration data in inband mode is MCS index 0 to 19, or MCS index 0 to 20.
- MCS table is shown in Table 10, where the number of MCS modulated by 16QAM is 13, corresponding to TBS 10 to 22, respectively. Based on Table 10, the range of MCS that can be used for configuration data in inband mode is MCS index 0 to 17, or MCS index 0 to 18.
- MCS table is shown in Table 11, where the number of MCS modulated by 16QAM is 14, corresponding to TBS 9 to 22, respectively. Based on Table 11, the range of MCS available for configuration data in inband mode is MCS index 0 to 18, or MCS index 0 to 19.
- MCS table is shown in Table 12, where the number of MCS modulated by 16QAM is 15, corresponding to TBS 8 to 22, respectively. Based on Table 12, the range of MCS available for configuration data in inband mode is MCS index 0-19, or MCS index 0-20.
- the data transmission supports 16QAM according to the high-level configuration parameter L1. If 16QAM is supported, the highest bit of the repetition count field in the downlink control information is used as the highest bit or the lowest bit of the MCS indication information. Bits.
- the number of repetitions field is used to indicate the number of repetitions of a physical downlink shared channel (Physical Downlink Share Channel, PDSCH), and the MCS indication information is used to indicate one MCS in the MCS table.
- PDSCH Physical Downlink Share Channel
- the MCS indication field in the downlink control information includes 4 bits of information, indicating 14 MCSs.
- the repetition count field in the downlink control information contains 4 bits of information, has 16 values, and indicates the 16 types of repetition times. The corresponding relationship between the value of the repetition count field and the repetition times can be shown in Table 13.
- the number of MCS contained in the MCS table is greater than 16 and less than or equal to 32, so the MCS indication in the downlink control information requires 5-bit information to indicate; on the other hand, because the base station only It will indicate support for 16QAM modulation when the PDSCH has a small number of repetitions or no repetition transmission, so the repetition number field does not require as much information as 4 bits to indicate the number of repetitions of the PDSCH. Therefore, the most significant bit of the repetition count field in the downlink control information is used as the most significant bit or the least significant bit of the MCS indication information.
- the lower number of repetitions that is, the low-order 3 bits in the repetition number field, are used to indicate the number of repetitions of the PDSCH.
- the corresponding relationship is shown in Table 14; the most significant 1-bit information is used as one bit of the MCS indication information (it can be used as the least significant bit or the most significant bit of the MCS indication information). Adding the original 4 bits of the MCS indication field, the MCS indication information becomes 5-bit information.
- the first communication node sends downlink control information
- the downlink control information includes 5-bit MCS indication information
- the MCS indication information is used to indicate one MCS in the first MCS set, that is, data MCS used for transmission.
- the first communication node sends downlink control information.
- the number of repetitions field in the downlink control information includes 4 bits
- the MCS indication field includes 4 bits.
- the number of repetitions field is used to indicate the number of repetitions of a physical shared channel (PDSCH or Physical Uplink Shared Channel (PUSCH)), and the MCS indicator field is used to indicate the MCS used for data transmission.
- the 4-bit repetition count indication information can indicate a maximum of 16 repetition count configurations
- the 4-bit MCS indication information can indicate a maximum of 16 MCS configurations.
- one bit of the repetition number field in the downlink control information is used as a bit of the MCS indicator information, for example, the highest bit of the repetition number field in the downlink control information is taken as the highest bit of the MCS indicator information Bit or least significant bit.
- the indication information of the number of repetitions is changed from 4 bits to 3 bits.
- the 3-bit repetition number indication information can indicate a maximum of 8 repetition times configuration; at the same time, the MCS indication information is changed from 4 bits. It is 5 bits.
- the 5-bit MCS indication information can indicate a maximum of 32 types of MCS.
- the second communication node receives downlink control information.
- the MCS used for data transmission is determined according to the downlink control information.
- the second communication node determines the MCS used for the data transmission according to the 4-bit MCS indication field in the downlink control information. At the same time, the second communication node determines the number of repetitions of the physical shared channel (PDSCH or PUSCH) according to the 4-bit repetition number field in the downlink control information.
- PDSCH physical shared channel
- the second communication node determines the MCS used for the data transmission based on the first MCS table and according to the 5-bit MCS indication information in the downlink control information.
- the 5-bit MCS indication information is composed of 4 bits of the MCS indication field and 1 bit of the repetition count field.
- the second communication node determines the number of repetitions of the physical shared channel according to the remaining 3 bits of the repetition number field in the downlink control information.
- the maximum modulation mode of the first MCS table is 16QAM modulation.
- the joint indication information indicates the MCS and the MCS of the physical shared channel. repeat times.
- x1*y1 states represent the modulation method and the repetition number under R1 with the number of repetitions less than or equal to.
- the modulation methods include 16QAM modulation and QPSK, x1 is the number of states corresponding to the modulation method at this time, and y1 is less than or equal to The number of repetition states of R1;
- the x2*y2 states indicate that the number of repetitions is greater than the modulation method and the number of repetitions under R1.
- the modulation method only includes QPSK
- x2 is the number of states corresponding to the modulation method at this time
- y2 is the state of the repetition number greater than R1. quantity.
- the number of bits of the joint indication information is 8;.
- the set of repetition times includes 1, 2, 4, 8, 16, 32, 64, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, and y1 repetition times correspond to the repetition
- FIG. 6 is a flowchart of a power configuration method provided by an embodiment of the present application.
- the embodiment of the present application may be applicable to the case where the maximum modulation mode is increased to 16QAM.
- the method may be a power configuration device provided by an embodiment of the present application.
- the device may be implemented by software and/or hardware. Referring to FIG. 6, the method of the embodiment of the present application specifically includes the following steps:
- Step 301 Determine the average power of the second symbol according to the average power of the first symbol.
- the average power of the first symbol may be the linear average power of all resource elements (Resource Element, RE) on the transmission bandwidth of the physical shared channel on the first symbol, and all REs on the first symbol include the reference signal ( Reference Signal (RS) RE and physical shared channel RE.
- the physical shared channel is a physical uplink shared channel (Physical Uplink Share Channel, PUSCH) or a physical downlink shared channel (Physical Downlink Share Channel, PUSCH).
- the average power of the second symbol may be the linear average power of all resource elements (Resource Element, RE) on the transmission bandwidth of the physical shared channel on the second symbol.
- the average power of resource particles is also called energy per resource element (EPRE)
- the average power of reference signal resource particles can be expressed as RS EPRE
- the average power of physical uplink shared channel resource particles can be expressed as PUSCH EPRE
- the average power of physical downlink shared channel resource particles can be expressed as PDSCH EPRE.
- the corresponding power after the modulation and coding strategy may be determined according to the first symbol
- the average power of the first symbol may be determined according to the power of the multiple first symbols
- the average power of the second symbol may be determined according to the average power of the first symbol.
- the reference signal is a narrowband reference signal (Narrowband Reference Signal, NRS).
- the OFDM symbols of the load reference signal are OFDM symbol indexes 5 and 6 in a transmission slot
- the OFDM symbols of the non-load reference signal are OFDM symbol indexes 0, 1, 2, 3, and 4 in a transmission slot. .
- the index is the serial number.
- the average power of the first symbol may be determined according to multiple symbols in the physical shared channel
- the average power of the second symbol may be determined according to the first symbol.
- Step 302 Configure power for data on the first symbol and the second symbol based on the average power of the first symbol and the average power of the second symbol, respectively; wherein, the first symbol is an OFDM symbol carrying a reference signal, so The second symbol is an OFDM symbol of a non-loaded reference signal, or the second symbol is an OFDM symbol of a loaded reference signal, and the first symbol is an OFDM symbol of a non-loaded reference signal.
- the average power of the first symbol is used to configure power for data on the first symbol
- the average power of the second symbol is used to configure power for data on the second symbol
- the average power of the first symbol and the average power of the second symbol are equal.
- the average power of the first symbol and the average power of the second symbol are equal. That is, the average power of the OFDM symbol of the loaded reference signal is the same as the average power of the OFDM symbol of the non-loaded reference signal.
- the average power of the first symbol is determined according to the average power of the reference signal signal resource particles and the power offset value A; the power offset value A is the average power of the physical shared channel resource particles on the first symbol and the power offset value A.
- the physical shared channel may include a physical uplink shared channel or a physical downlink shared channel. For a single-port NRS, the average power of the first symbol is equal to For a two-port NRS, the average power of the first symbol is equal to
- the power offset value A is determined by the high-level configuration parameter L2.
- a method for determining whether the high-level configuration parameter L2 is configured can be determined by determining that the high-level configuration parameter L2 is configured when the high-level configuration parameter L1 indicates that 16QAM is supported.
- the first communication node sends a high-level configuration parameter L3 to the second communication node, and the high-level configuration parameter L3 indicates whether the high-level configuration parameter L2 is configured.
- another method for determining whether the high-level configuration parameter L2 is configured may be by sending the high-level configuration parameter L3 to the second communication node through the first communication node, and the high-level configuration parameter L3 directly or indirectly indicates the high-level configuration parameter L2 Whether it is determined by configuration.
- the high-level configuration parameter L3 indicates whether the release-17 version of the downlink power allocation (also called downlink power allocation enhancement) is supported, if it is supported, it indicates that the high-level configuration parameter L2 is configured, and if it is not supported, it indicates that the high-level The configuration parameter L2 is not configured.
- the average power of the second symbol is determined by determining the average power of the first symbol after the modulation and coding strategy, and the power is allocated to the data on the second symbol according to the average power of the second symbol, so as to realize the high modulation mode.
- Symbol power configuration enhances data communication capabilities and improves data communication efficiency.
- FIG. 7 is a schematic structural diagram of a modulation and coding strategy configuration device provided by an embodiment of the present application, which can execute the modulation and coding strategy configuration method provided by any embodiment of the present application, and has the functional modules and effects corresponding to the execution method.
- the device can be implemented by software and/or hardware, and specifically includes:
- the strategy configuration module 401 is set to configure a modulation and coding strategy based on a first modulation and coding strategy (Modulation and Coding Scheme, MCS) set as data; wherein, the first modulation and coding strategy set includes at least one modulation and coding strategy, and The highest order modulation mode corresponding to the first set of modulation and coding strategies is 16 quadrature amplitude modulation.
- MCS Modulation and Coding Scheme
- the first modulation and coding strategy set preset by the strategy configuration module is used to configure the modulation and coding strategy for the data.
- the first modulation and coding strategy set may include a modulation and coding strategy composed of a modulation method and a data transmission size. Each modulation and coding strategy can correspond to a modulation and coding strategy index.
- the highest-order modulation method in the first modulation and coding strategy set is 16 quadrature amplitude modulation, which realizes the compatibility of high modulation methods, enhances data communication capabilities, and improves data Communication efficiency.
- the modulation and coding strategy configured for data in the strategy configuration module 401 is indicated by 5-bit downlink control information.
- the number of modulation and coding strategies corresponding to the quadrature phase shift keying modulation mode in the first modulation and coding strategy set in the strategy configuration module 401 is 14.
- the number of modulation and coding strategies corresponding to 16 quadrature amplitude modulation modes in the first modulation and coding strategy set in the strategy configuration module 401 is L, where L is greater than or equal to A positive integer of 12.
- the modulation and coding strategy in the first modulation and coding strategy set in the strategy configuration module 401 includes N groups, and the modulation and coding strategy in each group corresponds to different modulation modes, but the data transmission size Same, where N is a positive integer greater than or equal to 4.
- the policy configuration module 401 further includes:
- the uplink transmission unit is applied to uplink transmission.
- the configuration range of the modulation and coding strategy is from 0 to 13+N of the modulation and coding strategy, where N is a positive integer greater than or equal to 4.
- the policy configuration module 401 further includes:
- the in-band deployment unit is set so that when the deployment mode is in-band deployment, the configuration range of the modulation and coding strategy is modulation and coding strategy index 0 to 16+N or 0 to 17+N, where N is greater than Or a positive integer equal to 4.
- the policy configuration module 401 further includes:
- the first high-level configuration unit is set to when the high-level configuration parameter L1 indicates that 16-quadrature amplitude modulation is not supported, the configuration range of the modulation and coding strategy is modulation and coding strategy indexes 0 to 13.
- the policy configuration module 401 further includes:
- the second high-level configuration unit is configured to configure a modulation and coding strategy for data based on the first set of modulation and coding strategies when the high-level configuration parameter L1 indicates that 16 quadrature amplitude modulation is supported; wherein, the maximum number of repetitions of the physical shared channel corresponding to the data Less than or equal to 128.
- the policy configuration module 401 further includes:
- the third high-level configuration unit is set to when the high-level configuration parameter L1 indicates that it supports 16-quadrature amplitude modulation, and when the high-level configuration parameter L1 indicates that it supports 16-quadrature amplitude modulation, one bit of the repetition count field in the downlink control information is used as the modulation code.
- One bit of strategy indication information is used as the modulation code.
- the modulation and coding strategy indication information is used to indicate one modulation and coding strategy in the first modulation and coding strategy set.
- FIG. 8 is a schematic structural diagram of a power configuration device provided by an embodiment of the present application, which can execute the power configuration method provided in any embodiment of the present application, and has the functional modules and effects corresponding to the execution method.
- the device can be implemented by software and/or hardware, and specifically includes:
- the power determining module 501 is configured to determine the average power of the second symbol according to the average power of the first symbol.
- the power configuration module 502 is configured to configure power for data on the first symbol and the second symbol based on the average power of the first symbol and the average power of the second symbol, respectively; wherein, the first symbol is the power of the load reference signal OFDM symbol, the second symbol is an OFDM symbol of a non-loaded reference signal, or the second symbol is an OFDM symbol of a loaded reference signal, and the first symbol is an OFDM symbol of a non-loaded reference signal.
- the average power of the first symbol after the modulation and coding strategy is determined by the power determination module determines the average power of the second symbol, and the power configuration module configures the power for the data on the second symbol according to the average power of the second symbol to achieve
- the symbol power configuration under the high modulation mode is improved, the data communication capability is enhanced, and the data communication efficiency is improved.
- the average power of the first symbol and the average power of the second symbol in the power configuration device are equal.
- the power configuration device further includes:
- the average power determining module is configured to determine the average power of the first symbol according to the average power of the reference signal signal resource particles and the power offset value A; the power offset value A is the physical shared channel on the first symbol The logarithmic value of the ratio of the average power of the resource particles to the average power of the reference signal resource particles.
- the power configuration device is in NB-IoT, and the power offset value A is determined by the high-level configuration parameter L2.
- the high-level configuration parameter L1 of the power configuration device indicates that 16 quadrature amplitude modulation is supported
- the high-level configuration parameter L2 is configured.
- the high-level configuration parameter L3 indicates whether the high-level configuration parameter L2 is configured.
- FIG. 9 is a schematic structural diagram of a device provided by an embodiment of the present application.
- the device includes a processor 50, a memory 51, an input device 52, and an output device 53; the number of processors 50 in the device may be one Or more, one processor 50 is taken as an example in FIG. 9; the device processor 50, the memory 51, the input device 52, and the output device 53 may be connected by a bus or other means. In FIG. 9, the connection by a bus is taken as an example.
- the memory 51 can be configured to store software programs, computer-executable programs, and modules, such as the modulation and coding strategy configuration device or the module corresponding to the power configuration device (strategy configuration module 401) in the embodiment of the present application. , Power determination module 501 and power configuration module 502).
- the processor 50 executes multiple functional applications and data processing of the device by running the software programs, instructions, and modules stored in the memory 51, that is, implements the method described in any of the above application embodiments.
- the memory 51 may mainly include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like.
- the memory 51 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the memory 51 may further include a memory remotely provided with respect to the processor 50, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the input device 52 may be configured to receive input digital or character information, and to generate key signal input related to user settings and function control of the device.
- the output device 53 may include a display device such as a display screen.
- the embodiment of the present application also provides a storage medium containing computer-executable instructions that are used to execute a modulation and coding strategy configuration method or a power configuration method when the computer-executable instructions are executed by a computer processor, wherein the modulation and coding
- the strategy configuration methods include:
- MCS Modulation and Coding Scheme
- the first modulation and coding strategy set includes at least one modulation and coding strategy, and the highest order modulation mode corresponding to the first modulation and coding strategy set is 16 quadrature amplitude modulation.
- the power configuration method includes:
- the first symbol is an OFDM symbol carrying a reference signal
- the second symbol is an OFDM symbol carrying a reference signal
- the second symbol is an OFDM symbol carrying a reference signal
- the first symbol is The OFDM symbol of the unloaded reference signal.
- An embodiment of the present application provides a storage medium containing computer-executable instructions.
- the computer-executable instructions are not limited to the method operations described above, and can also perform related operations in the methods provided in any embodiment of the present application.
- user terminal encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
- Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
- ISA Instruction Set Architecture
- the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
- Computer-readable media may include non-transitory storage media.
- the data processor can be of any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), and application specific integrated circuits (ASICs). ), programmable logic devices (Field Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
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Abstract
Description
MCS索引 | 调制阶数 | TBS索引 |
0 | 2 | 0 |
1 | 2 | 1 |
2 | 2 | 2 |
3 | 2 | 3 |
4 | 2 | 4 |
5 | 2 | 5 |
6 | 2 | 6 |
7 | 2 | 7 |
8 | 2 | 8 |
9 | 2 | 9 |
10 | 2 | 10 |
11 | 2 | 11 |
12 | 2 | 12 |
13 | 2 | 13 |
14 | 4 | 9 |
15 | 4 | 10 |
16 | 4 | 11 |
17 | 4 | 12 |
18 | 4 | 13 |
19 | 4 | 14 |
20 | 4 | 15 |
21 | 4 | 16 |
22 | 4 | 17 |
23 | 4 | 18 |
24 | 4 | 19 |
25 | 4 | 20 |
26 | 4 | 21 |
27~31 | 保留 | 保留 |
MCS索引 | 调制阶数 | TBS索引 |
0 | 2 | 0 |
1 | 2 | 1 |
2 | 2 | 2 |
3 | 2 | 3 |
4 | 2 | 4 |
5 | 2 | 5 |
6 | 2 | 6 |
7 | 2 | 7 |
8 | 2 | 8 |
9 | 2 | 9 |
10 | 2 | 10 |
11 | 2 | 11 |
12 | 2 | 12 |
13 | 2 | 13 |
14 | 4 | 4 |
15 | 4 | 5 |
16 | 4 | 6 |
17 | 4 | 7 |
18 | 4 | 8 |
19 | 4 | 9 |
20 | 4 | 10 |
21 | 4 | 11 |
22 | 4 | 12 |
23 | 4 | 13 |
24 | 4 | 14 |
25 | 4 | 15 |
26 | 4 | 16 |
27 | 4 | 17 |
28 | 4 | 18 |
29 | 4 | 19 |
30 | 4 | 20 |
31 | 4 | 21 |
MCS索引 | 调制阶数 | TBS索引 |
0 | 2 | 0 |
1 | 2 | 1 |
2 | 2 | 2 |
3 | 2 | 3 |
4 | 2 | 4 |
5 | 2 | 5 |
6 | 2 | 6 |
7 | 2 | 7 |
8 | 2 | 8 |
9 | 2 | 9 |
10 | 2 | 10 |
11 | 2 | 11 |
12 | 2 | 12 |
13 | 2 | 13 |
14 | 4 | 5 |
15 | 4 | 6 |
16 | 4 | 7 |
17 | 4 | 8 |
18 | 4 | 9 |
19 | 4 | 10 |
20 | 4 | 11 |
21 | 4 | 12 |
22 | 4 | 13 |
23 | 4 | 14 |
24 | 4 | 15 |
25 | 4 | 16 |
26 | 4 | 17 |
27 | 4 | 18 |
28 | 4 | 19 |
29 | 4 | 20 |
30 | 4 | 21 |
31 | 4 | 22 |
重复次数域的取值 | 重复次数 |
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 16 |
5 | 32 |
6 | 64 |
7 | 128 |
8 | 192 |
9 | 256 |
10 | 384 |
11 | 512 |
12 | 768 |
13 | 1024 |
14 | 1536 |
15 | 2048 |
重复次数域的取值 | 重复次数 |
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 16 |
5 | 32 |
6 | 64 |
7 | 128 |
Claims (20)
- 一种调制编码策略的配置方法,包括:基于第一调制编码策略集合为数据配置调制编码策略;其中,所述第一调制编码策略集合中包括至少一个调制编码策略,且所述第一调制编码策略集合对应的最高阶的调制方式为16正交幅度调制。
- 根据权利要求1所述的方法,其中,所述基于第一调制编码策略集合为数据配置调制编码策略,包括:为数据配置的所述调制编码策略由5比特下行控制信息指示。
- 根据权利要求1所述的方法,其中,所述第一调制编码策略集合中对应正交相移键控调制方式的调制编码策略的数量为14个。
- 根据权利要求1所述的方法,其中,所述第一调制编码策略集合中对应16正交幅度调制方式的调制编码策略的数量为L个,其中,所述L为大于或等于12的正整数。
- 根据权利要求1所述的方法,其中,所述第一调制编码策略集合中的调制编码策略包括N个分组,每个分组内的调制编码策略对应调制方式不同,但数据传输尺寸相同,其中,N为大于或等于4的正整数。
- 根据权利要求1或5任一所述的方法,其中,所述基于第一调制编码策略集合为数据配置调制编码策略,包括:在上行传输时,所述调制编码策略的配置范围为调制编码策略索引0至13+N,其中,N为大于或等于4的正整数。
- 根据权利要求1或5任一所述的方法,其中,所述基于第一调制编码策略集合为数据配置调制编码策略,包括:在部署方式为带内部署的情况下,所述调制编码策略的配置范围为调制编码策略索引0至16+N或0至17+N,其中,N为大于或等4的正整数。
- 根据权利要求1所述的方法,其中,所述基于第一调制编码策略集合为数据配置调制编码策略,包括:在高层配置参数L1指示不支持16正交幅度调制的情况下,所述调制编码策略的配置范围为调制编码策略索引0至13。
- 根据权利要求1所述的方法,其中,所述基于第一调制编码策略集合为 数据配置调制编码策略,包括:在高层配置参数L1指示支持16正交幅度调制的情况下,基于所述第一调制编码策略集合为所述数据配置所述调制编码策略;其中,所述数据对应的物理共享信道的最大重复次数小于或等于128。
- 根据权利要求1所述的方法,其中,所述基于第一调制编码策略集合为数据配置调制编码策略,包括:在高层配置参数L1指示支持16正交幅度调制的情况下,将下行控制信息中重复次数域的一个比特作为调制编码策略指示信息的一个比特;其中,所述调制编码策略指示信息用于指示所述第一调制编码策略集合中的一个调制编码策略。
- 一种功率配置方法,包括:根据第一符号平均功率确定第二符号平均功率;基于所述第一符号平均功率和所述第二符号平均功率分别为第一符号和第二符号上的数据配置功率;其中,所述第一符号为负载参考信号的正交频分复用OFDM符号,所述第二符号为非负载参考信号的OFDM符号,或者,所述第二符号为负载参考信号的OFDM符号,所述第一符号为非负载参考信号的OFDM符号。
- 根据权利要求11所述的方法,其中,所述第一符号平均功率和所述第二符号平均功率相等。
- 根据权利要求11所述的方法,还包括:根据参考信号资源粒子的平均功率和功率偏移值A确定所述第一符号平均功率;所述功率偏移值A为所述第一符号上的物理共享信道资源粒子的平均功率与所述参考信号资源粒子的平均功率之比的对数值。
- 根据权利要求13所述的方法,其中,在NB-IoT中,所述功率偏移值A由高层配置参数L2确定。
- 根据权利要求11、13或14中任一所述的方法,还包括:在高层配置参数L1指示支持16正交幅度调制的情况下,所述高层配置参 数L2被配置。
- 根据权利要求11、13或14中任一所述的方法,还包括:第一通信节点向第二通信节点发送高层配置参数L3,所述高层配置参数L3指示所述高层配置参数L2是否被配置。
- 一种调制编码策略的配置装置,包括:策略配置模块,设置为基于第一调制编码策略MCS集合为数据配置调制编码策略;其中,所述第一调制编码策略集合中包括至少一个调制编码策略,且所述第一调制编码策略集合对应的最高阶的调制方式为16正交幅度调制。
- 一种功率配置装置,包括:功率确定模块,设置为根据第一符号平均功率确定第二符号平均功率;功率配置模块,设置为基于所述第一符号平均功率和所述第二符号平均功率分别为第一符号和第二符号上的数据配置功率;其中,所述第一符号为负载参考信号的正交频分复用OFDM符号,所述第二符号为非负载参考信号的OFDM符号,或者,所述第二符号为负载参考信号的OFDM符号,所述第一符号为非负载参考信号的OFDM符号。
- 一种设备,包括:一个或多个处理器;存储器,设置为存储一个或多个程序;所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如权利要求1-10中任一项所述的调制编码策略的配置方法或者如权利要求11-16中任一项所述的功率配置方法。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1-10中任一项所述的调制编码策略的配置方法或者如权利要求11-16中任一项所述的功率配置方法。
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