WO2022253312A1 - 上行数据传输方法、装置、终端及介质 - Google Patents
上行数据传输方法、装置、终端及介质 Download PDFInfo
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- WO2022253312A1 WO2022253312A1 PCT/CN2022/096836 CN2022096836W WO2022253312A1 WO 2022253312 A1 WO2022253312 A1 WO 2022253312A1 CN 2022096836 W CN2022096836 W CN 2022096836W WO 2022253312 A1 WO2022253312 A1 WO 2022253312A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
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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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
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- 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
- H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
- H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
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- H—ELECTRICITY
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- H04L5/0005—Time-frequency
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- H—ELECTRICITY
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- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present application belongs to the technical field of communication, and in particular relates to an uplink data transmission method, device, terminal and medium.
- the user equipment can receive the radio resource control (Radio Resource Control, RRC) signaling from the network side equipment, and according to the information included in the RRC signaling Waveform configuration information, using cyclic prefix Orthogonal Frequency Division Multiplexing (Cyclic Prefix Orthogonal Frequency Division Multiplexing, CP-OFDM) waveform or Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) waveform transmits uplink data.
- RRC Radio Resource Control
- the UE can transmit one uplink data by using the CP-OFDM waveform, that is, single-stream transmission; or, the UE can transmit multiple uplink data by using the DFT-S-OFDM waveform, that is, multi-stream transmission.
- the peak-to-average power ratio (Peak to Average Power Ratio, PAPR) of the reference signal symbols may be high, so the power amplifier efficiency of the UE is low .
- Embodiments of the present application provide an uplink data transmission method, device, terminal, and medium, which can solve the problem of low power amplifier efficiency of a UE.
- a method for transmitting uplink data includes: when the UE is configured to transmit uplink data using a first waveform, the UE receives target downlink control information DCI from a network side device, and the target DCI is used for Scheduling the target uplink data; when the indication information included in the target DCI satisfies the first preset condition, the UE uses the second waveform to transmit the target uplink data; wherein, the above indication information is used to indicate: the transmission parameters of the target uplink data.
- an uplink data transmission device in a second aspect, includes: a receiving module and a transmitting module.
- the receiving module is configured to receive target DCI from the network side equipment when the device for configuring uplink data transmission is configured to transmit uplink data using the first waveform, and the target DCI is used for scheduling target uplink data.
- the transmission module is configured to transmit the target uplink data using the second waveform when the indication information contained in the target DCI received by the receiving module satisfies the first preset condition; wherein the above indication information is used to indicate: the transmission parameters of the target uplink data .
- a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
- a terminal including a processor and a communication interface, wherein the communication interface is used to receive target downlink control information from a network side device when the terminal is configured to transmit uplink data using a first waveform DCI, the target DCI is used to schedule the target uplink data; when the indication information included in the target DCI satisfies the first preset condition, the second waveform is used to transmit the target uplink data; wherein, the above indication information is used to indicate: the target uplink data The transmission parameters.
- a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the third aspect.
- a sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect .
- a computer program/program product is provided, the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the first aspect The steps of the method.
- the UE in the case of being configured to transmit uplink data using the first waveform, may receive target DCI for scheduling target uplink data from the network side device, and indicate the target DCI included in the target DCI If the indication information of the transmission parameters of the target uplink data satisfies the first preset condition, the target uplink data is directly transmitted using the second waveform.
- the UE can determine whether the indication information included in the target DCI satisfies the first preset condition, and when it is determined that the indication information satisfies the first preset condition, The second waveform is used to transmit the target uplink data instead of the preconfigured first waveform to transmit the target uplink data. Therefore, the PAPR of the reference signal symbols can be reduced, thus improving the power amplification efficiency of the UE.
- FIG. 1 is a block diagram of a wireless communication system provided by an embodiment of the present application.
- Fig. 2 is one of the schematic diagrams of the uplink data transmission method provided by the embodiment of the present application.
- FIG. 3 is the second schematic diagram of the uplink data transmission method provided by the embodiment of the present application.
- FIG. 4 is the third schematic diagram of the uplink data transmission method provided by the embodiment of the present application.
- FIG. 5 is one of the structural schematic diagrams of an uplink data transmission device provided by an embodiment of the present application.
- FIG. 6 is a second structural schematic diagram of an uplink data transmission device provided by an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application.
- the waveform in which the UE transmits uplink data may be semi-statically configured by RRC signaling received from the network side device.
- the UE uses DFT-S-OFDM to transmit uplink data, and the uplink transmission is limited to single-stream transmission.
- the UE uses CP-OFDM to transmit uplink data, and the uplink transmission can be single-stream transmission or multi-stream transmission.
- the precoding and transport stream number information field is referred to as the TPMI field for short.
- one information field can indicate precoding information and data stream number information at the same time.
- the precoding information is used to indicate a precoding matrix.
- first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
- “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
- the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th Generation (6th Generation , 6G) communication system.
- 6th Generation 6th Generation
- Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), Pedestrian Terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, earphones, glasses, etc.
- the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
- Fig. 2 shows a flowchart of an uplink data transmission method provided by an embodiment of the present application.
- the uplink data transmission method provided by the embodiment of the present application may include the following steps 101 and 102 .
- Step 101 In a case where the uplink data transmission device is configured to transmit uplink data using a first waveform, the uplink data transmission device receives a target DCI from a network side device.
- the foregoing first waveform may be any of the following: CP-OFDM, DFT-S-OFDM.
- the uplink data transmission device may receive RRC signaling from the network side device, and configure the uplink data transmission device to use the first waveform to transmit uplink data according to the transformPrecoder in the RRC signaling.
- the foregoing target DCI is used for scheduling target uplink data.
- Step 102 When the indication information included in the target DCI satisfies the first preset condition, the uplink data transmission device transmits the target uplink data using the second waveform.
- the above indication information is used to indicate: the transmission parameters of the target uplink data.
- the above indication information may be one indication information, or may include multiple sub-indication information.
- the above-mentioned indication information includes at least one of the following: TPMI domain, sounding reference signal resource indication information (SRS Resource Indicator, SRI) domain, frequency domain resource allocation indication information (Frequency Domain Resource Allocation, FDRA) field, modulation and coding scheme (Modulation and Coding Scheme, MCS) index value, channel state information (Channel State Information, CSI) request field.
- SRS Resource Indicator SRI
- Frequency Domain Resource Allocation Frequency Domain Resource Allocation
- FDRA frequency domain resource allocation indication information
- MCS Modulation and Coding Scheme
- CSI Channel State Information
- the above indication information may also include at least one of the following: physical/virtual resource block (physical/virtual resource block, PRB/VRB) allocation indication information field, time domain resource allocation (Time Domain Resource Allocation, TDRA) indication information field, demodulation reference signal (Demodulation Reference Signal, DMRS) indication information field, etc.
- physical/virtual resource block physical/virtual resource block, PRB/VRB
- time domain resource allocation Time Domain Resource Allocation, TDRA
- DMRS Demodulation Reference Signal
- the above indication information satisfying the first preset condition includes at least one of the following:
- the channel rank corresponding to the TPMI domain is less than or equal to the first threshold
- the channel rank number corresponding to the SRI domain is less than or equal to the second threshold
- the physical resource block PRB indicated by the FDRA field is a continuous PRB
- the MCS index value is less than the third threshold
- the indication information does not include the CSI request field
- the indication information includes a CSI request field, and the CSI request field is not used to trigger the uplink data transmission device to report a CSI report.
- the uplink data transmission device can use the DFT-S-OFDM waveform to perform single-stream transmission (that is, transmit target uplink data), so as to reduce the PAPR of the reference signal symbol.
- the above indication information satisfying the first preset condition includes at least one of the following:
- the rank corresponding to the TPMI field is greater than the first threshold
- the rank corresponding to the SRI domain is greater than the second threshold
- the PRBs indicated by the FDRA field are continuous or discontinuous PRBs
- the MCS index value is greater than the third threshold
- the indication information includes a CSI request field.
- the uplink data transmission device may use a CP-OFDM waveform to perform multi-stream transmission (that is, transmit target uplink data), so as to reduce the PAPR of the reference signal symbol.
- the uplink data transmission device when the uplink data transmission device is configured to transmit uplink data using CP-OFDM, if the uplink data transmission device is scheduled for single-stream transmission and meets the first preset condition, the uplink data transmission device can use DFT-S-OFDM transmits target uplink data.
- the uplink data transmission device When the uplink data transmission device is configured to use CP-OFDM to transmit uplink data, if the uplink data transmission device is scheduled for single-stream transmission and does not meet the first preset condition, the uplink data transmission device still uses CP-OFDM to transmit the target upstream data.
- the uplink data transmission device When the uplink data transmission device is configured to use DFT-S-OFDM to transmit uplink data, if the uplink data transmission device is scheduled for multi-stream transmission and meets the first preset condition, the uplink data transmission device can use CP-OFDM transmission Target uplink data.
- the uplink data transmission device can receive the target DCI for scheduling the target uplink data from the network side equipment, and The indication information included in the DCI is used to indicate the transmission parameters of the target uplink data. If the first preset condition is satisfied, the target uplink data is directly transmitted using the second waveform.
- the uplink data transmission device may determine whether the indication information included in the target DCI satisfies the first preset condition, and when determining that the indication information satisfies the first preset condition, Under the conditions set, the target uplink data is transmitted using the second waveform instead of the pre-configured first waveform, so the PAPR of the reference signal symbol can be reduced, so that the uplink data transmission device can be improved. power amplifier efficiency.
- the uplink data transmission device uses the second waveform to transmit the target uplink data, some sub-indication information in the target DCI may be invalid for the second waveform. In this way, the uplink data transmission device can According to the sub-indication information except the certain sub-indication information, the target uplink data is transmitted by using the second waveform, that is, the certain sub-indication information is ignored.
- the above indication information includes N sub-indication information, where N is a positive integer.
- N is a positive integer.
- the above-mentioned step 102 may be specifically implemented through the following step 102a.
- Step 102a in the case that Q pieces of sub-indication information among the N pieces of sub-indication information satisfy a second preset condition, the uplink data transmission device transmits target uplink data using a second waveform according to other sub-indication information.
- the above other sub-indication information is: among the N sub-indication information, sub-indication information except Q sub-indication information, where Q is a positive integer.
- the uplink data transmission device uses the second waveform to transmit target uplink data according to other sub-indication information, that is, the uplink data transmission device ignores Q sub-indication information satisfying the second preset condition among the N sub-indication information.
- the above-mentioned second preset condition may specifically be: the sub-indicator information is invalid for the second waveform.
- the N sub-indication information includes a phase tracking reference signal (PhaseTracking Reference Signal, PTRS)-DMRS association information field
- the PTRS-DMRS association is 2 bits
- the PTRS-DMRS association is aimed at the second waveform (such as DFT- S-OFDM) is invalid
- the uplink data transmission device can ignore the PTRS-DMRS association.
- PhaseTracking Reference Signal PhaseTracking Reference Signal
- the uplink data transmission apparatus may transmit target uplink data using the second waveform according to transmission parameters indicated by other sub-indication information.
- the uplink data transmission device can use the second waveform to transmit the target uplink data according to the other sub-indication information that is valid for the second waveform among the N sub-indication information included in the target DCI, it will not be based on the invalid sub-indication information for the second waveform.
- the Q pieces of sub-indication information are used to transmit the target uplink data, so the reliability of uplink data transmission by the uplink data transmission device can be improved.
- the uplink data transmission device may also keep the size of certain sub-indication information among the plurality of sub-indication information unchanged, and perform a new interpretation on the certain sub-indication information.
- the above-mentioned indication information includes: a first demodulation reference signal DMRS indication information field, where the first DMRS indication information field is used to indicate: when the transmission target uplink data is configured to use the first waveform In this case, the transmission port of the DMRS used by the target uplink data.
- the uplink data transmission method provided by the embodiment of the present application may also include the following Step 301, and the above-mentioned step 102 can be specifically implemented through the following step 102b.
- Step 301 When the indication information included in the target DCI satisfies the first preset condition, the uplink data transmission device determines the target transmission port according to the first DMRS indication information field.
- the uplink data transmission device may be based on the pre-configured first DMRS indication table of the first waveform and the second DMRS indication table of the second waveform, according to the first DMRS indication information field and the first The DMRS indication table (or the second DMRS indication table) determines the target transmission port.
- the first DMRS indication table includes at least one state
- the second DMRS indication table includes at least one state
- the number of states in the first DMRS indication table is different from the number of states in the second DMRS indication table.
- Table 1 shows a DMRS indication table corresponding to DFT-S-OFDM.
- the DMRS indication table includes 4 states (that is, the value of the number of states is 4), and a total of 2 bit indications.
- Table 2 shows a DMRS indication table corresponding to CP-OFDM.
- the DMRS indication table includes 6 states (that is, the value of the number of states is 6), and a total of 3 bits for indication.
- the above-mentioned first DMRS indication information field corresponds to X bits, and X is determined based on the waveform with a large number of states among the first waveform and the second waveform , X is a positive integer.
- X is a bit of a waveform with a large number of states among the first waveform and the second waveform.
- the state quantity value of the first waveform is 6
- the first waveform occupies 3 bits
- the state quantity value of the second waveform is 4
- the second waveform occupies 2 bits
- X is:
- the bits of the waveform with a large number of states are 3 bits.
- the above-mentioned target transmission port is: the transmission port indicated by the target bit.
- the above-mentioned target bits are: the first Y bits or the last Z bits among the X bits, and both Y and Z are positive integers.
- the target transmission port is: the DMRS ports indicated by the first Y (for example, 2) ratio characteristics, or the DMRS ports indicated by the last Z (for example, 2) ratio characteristics.
- the length of the DMRS information field and the above-mentioned target transmission port are: the transmission determined according to the state corresponding to the second waveform port.
- the length of the DMRS information field and the target transmission port are: the transmission port determined according to the state corresponding to CP-OFDM (ie, the 6 states in Table 2).
- the uplink data transmission device can perform new interpretation on the first DMRS indication information according to the state quantity value corresponding to the second waveform and the state quantity value corresponding to the first waveform, so as to determine the target transmission port, therefore, it can The reliability of uplink data transmission by the uplink data transmission device is improved.
- step 301 may specifically be implemented through the following steps 301a and 301b.
- Step 301a when the indication information included in the target DCI satisfies the first preset condition, the uplink data transmission device determines the second DMRS indication information field according to the index value of the first DMRS indication information field based on the M first mapping relationships index value.
- each of the above-mentioned M first mapping relationships is respectively: a mapping relationship between index values of different DMRS indication information fields corresponding to different waveforms, and M is a positive integer;
- the above M first mapping relationships may be: mapping relationships pre-stored in the uplink data transmission apparatus.
- the above-mentioned second DMRS indication information field is used to indicate: in the case of being configured to transmit the target uplink data using the second waveform, the DMRS transmission port used by the target uplink data.
- the uplink data transmission device may determine a matching first index value from the M first index values of the first waveform according to the index value of the first DMRS indication information field, and then Then according to the first index value, determine a mapped second index value from the M second index values of the second waveform, and determine the second index value as the index value of the second DMRS indication information field .
- step 301b the uplink data transmission device determines the target transmission port according to the index value of the second DMRS indication information field.
- the uplink data transmission device may determine the target transmission port according to the index value of the second DMRS indication information field and the first DMRS indication table (or the second DMRS indication table).
- the uplink data transmission device can re-determine a new index value according to the index value of the first DMRS indication information field based on the M first mapping relationships, so as to determine the target transmission port according to the new index value, Therefore, the reliability of uplink data transmission by the uplink data transmission device can be improved.
- step 102b the uplink data transmission device transmits the DMRS using the second waveform according to the target transmission port.
- the DMRS indication information field in the target DCI is taken as an example to illustrate how the uplink data transmission device performs new interpretation on the sub-indication information, and uses the second waveform to transmit the DMRS.
- the second waveform is used to transmit other transmission parameters indicated by the other sub-indication information, and transmit uplink data to transmit target uplink data.
- the uplink data transmission device can perform a new interpretation of the first DMRS indication information to determine the target transmission port, the uplink data transmission device can transmit DMRS using the second waveform according to the target transmission port, therefore, it can be improved. Reliability of uplink data transmission by the uplink data transmission device.
- the uplink data transmission method provided in the embodiment of the present application may be executed by an uplink data transmission device, or a control module in the uplink data transmission device for executing the uplink data transmission method.
- an uplink data transmission device performing an uplink data transmission method is taken as an example to illustrate the uplink data transmission device provided in the embodiment of the present application.
- FIG. 5 shows a possible structural diagram of a transmission device involved in the embodiment of the present application.
- the uplink data transmission device 60 may include: a receiving module 61 and a transmitting module 62 .
- the receiving module 61 is configured to receive target DCI from the network side equipment when the uplink data transmission apparatus 60 is configured to transmit uplink data using the first waveform, and the target DCI is used for scheduling target uplink data.
- the transmission module 62 is configured to transmit the target uplink data using the second waveform when the indication information included in the target DCI received by the receiving module 61 satisfies the first preset condition.
- the above indication information is used to indicate: the transmission parameters of the target uplink data.
- the above indication information includes at least one of the following: TPMI field, SRI field, FDRA field, MCS index value, and CSI request field.
- the above indication information satisfying the first preset condition includes at least one of the following:
- the rank corresponding to the TPMI field is less than or equal to the first threshold; the rank corresponding to the SRI field is less than or equal to the second threshold; the PRBs indicated by the FDRA field are continuous PRBs; the MCS index value is less than the third threshold; the indication information does not include the CSI request field ;
- the indication information includes a CSI request field, and the CSI request field is not used to trigger the uplink data transmission device 60 to report a CSI report.
- the above indication information includes: a first DMRS indication information field, where the first DMRS indication information field is used to indicate: when configured to transmit target uplink data using the first waveform, the target The transmission port of the DMRS used for uplink data.
- the uplink data transmission device 60 provided in the embodiment of the present application may further include: a processing module 63 .
- the processing module 63 is configured to determine the target transmission port according to the first DMRS indication information field.
- the transmission module 62 is specifically configured to transmit the DMRS using the second waveform according to the target transmission port determined by the processing module 63 .
- the above-mentioned first DMRS indication information field corresponds to X bits, and X is determined based on the waveform with a large number of states in the first waveform and the second waveform, and X is a positive integer;
- the target transmission port is: the transmission port indicated by the target bit;
- the state quantity value corresponding to the second waveform is greater than the corresponding state quantity value of the first waveform
- the target transmission port is: the transmission port determined according to the state corresponding to the second waveform.
- the above-mentioned target bits are: the first Y bits or the last Z bits among the X bits, and both Y and Z are positive integers.
- the above-mentioned processing module 63 is specifically configured to determine the index value of the second DMRS indication information field based on the M first mapping relationships and according to the index value of the first DMRS indication information field, where M is positive Integer; and determine the target transmission port according to the index value of the second DMRS indication information field.
- each first mapping relationship is respectively: the mapping relationship between index values of different DMRS indication information fields corresponding to different waveforms; the above-mentioned second DMRS indication information field is used to indicate: when configured to use the second waveform to transmit the target uplink In the case of data, the transmission port of the DMRS used by the target uplink data.
- the above indication information includes N sub-indication information, where N is a positive integer.
- the above transmission module 62 is specifically configured to transmit the target uplink data using the second waveform according to other sub-indication information when Q sub-indication information among the N sub-indication information satisfies the second preset condition.
- the above other sub-indication information is: sub-indication information except Q sub-indication information among N sub-indication information, where Q is a positive integer.
- the uplink data transmission device when the uplink data transmission device is configured to transmit uplink data using the first waveform, the uplink data transmission device can determine whether the indication information included in the target DCI satisfies the first preset condition , and when it is determined that the indication information satisfies the first preset condition, the target uplink data is transmitted using the second waveform instead of the preconfigured first waveform, so that the number of reference signal symbols can be reduced In this way, the PAPR can improve the power amplification efficiency of the uplink data transmission device.
- the uplink data transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
- the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
- the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television ( Television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
- the uplink data transmission device provided by the embodiment of the present application can realize each process realized by the method embodiments in FIG. 1 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
- the embodiment of the present application further provides a communication device 70, including a processor 71, a memory 72, and programs or instructions stored in the memory 72 and operable on the processor 71,
- a communication device 70 including a processor 71, a memory 72, and programs or instructions stored in the memory 72 and operable on the processor 71
- the communication device 70 is a terminal
- the program or instruction is executed by the processor 71
- each process of the above-mentioned uplink data transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
- the embodiment of the present application also provides a terminal, including a processor and a communication interface, where the communication interface is used to receive target downlink control information DCI from a network side device when the terminal is configured to transmit uplink data using a first waveform, the target The DCI is used to schedule the target uplink data; when the indication information included in the target DCI satisfies the first preset condition, the second waveform is used to transmit the target uplink data; wherein, the above indication information is used to indicate: the transmission parameters of the target uplink data.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
- FIG. 8 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110, etc. at least some of the components.
- the terminal 100 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 110 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
- a power supply such as a battery
- the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
- the input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processing unit 1041 is used by the image capturing device (such as the image data of the still picture or video obtained by the camera) for processing.
- the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 107 includes a touch panel 1071 and other input devices 1072 .
- the touch panel 1071 is also called a touch screen.
- the touch panel 1071 may include two parts, a touch detection device and a touch controller.
- Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
- the radio frequency unit 101 receives the downlink data from the network side device, and processes it to the processor 110; in addition, sends the uplink data to the network side device.
- the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the memory 109 can be used to store software programs or instructions as well as various data.
- the memory 109 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 109 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
- the processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 110 .
- the radio frequency unit 101 is configured to receive the target DCI from the network side device when the terminal is configured to transmit uplink data using the first waveform, and the target DCI is used to schedule the target uplink data; the indication information included in the target DCI satisfies In the case of the first preset condition, the target uplink data is transmitted using the second waveform.
- the above indication information is used to indicate: the transmission parameters of the target uplink data.
- the terminal when the terminal is configured to transmit uplink data using the first waveform, the terminal can determine whether the indication information included in the target DCI satisfies the first preset condition, and determines that the indication information satisfies the second preset condition.
- the target uplink data is transmitted using the second waveform instead of using the preconfigured first waveform to transmit the target uplink data, therefore, the PAPR of the reference signal symbol can be reduced, thus, the terminal performance can be improved. Power amplifier efficiency.
- the above-mentioned indication information includes: a first demodulation reference signal DMRS indication information field, where the first DMRS indication information field is used to indicate: when the transmission target uplink data is configured to use the first waveform In this case, the transmission port of the DMRS used by the target uplink data.
- the processor 110 is further configured to determine the target transmission port according to the first DMRS indication information field.
- the radio frequency unit 101 is specifically configured to transmit the DMRS using the second waveform according to the target transmission port.
- the terminal can perform a new interpretation of the first DMRS indication information to determine the target transmission port, so that the terminal can transmit DMRS using the second waveform according to the target transmission port, therefore, the reliability of the terminal's uplink data transmission can be improved. sex.
- the processor 110 is specifically configured to determine the index value of the second DMRS indication information field based on the M first mapping relationships and according to the index value of the first DMRS indication information field, where M is positive Integer; and determine the target transmission port according to the index value of the second DMRS indication information field.
- each first mapping relationship is respectively: the mapping relationship between index values of different DMRS indication information fields corresponding to different waveforms; the above-mentioned second DMRS indication information field is used to indicate: when configured to use the second waveform to transmit the target uplink In the case of data, the transmission port of the DMRS used by the target uplink data.
- the terminal can re-determine a new index value according to the index value of the first DMRS indication information field based on the M first mapping relationships, so as to determine the target transmission port according to the new index value, therefore, can Improve the reliability of the terminal to transmit uplink data.
- the above indication information includes N sub-indication information, where N is a positive integer.
- the radio frequency unit 101 is specifically configured to transmit target uplink data using a second waveform according to other sub-indication information when Q sub-indication information among the N sub-indication information satisfies a second preset condition.
- sub-indication information is: sub-indication information except Q sub-indication information among N sub-indication information, where Q is a positive integer.
- the terminal since the terminal can use the second waveform to transmit the target uplink data according to the other sub-indication information that is valid for the second waveform among the N sub-indication information included in the target DCI, it will not transmit the target uplink data based on the Q sub-indication information that is invalid for the second waveform.
- the indication information transmits the target uplink data, therefore, the reliability of the terminal to transmit the uplink data can be improved.
- the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by the processor, each process of the above-mentioned uplink data transmission method embodiment is realized, and can achieve The same technical effects are not repeated here to avoid repetition.
- the processor is the processor in the terminal described in the foregoing embodiments.
- the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above-mentioned embodiment of the uplink data transmission method Each process, and can achieve the same technical effect, in order to avoid repetition, will not repeat them here.
- chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip, system-on-a-chip, or system-on-chip.
- the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
- the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
- the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
- the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
Abstract
Description
Claims (19)
- 一种上行数据传输方法,所述方法包括:在用户设备UE被配置为采用第一波形传输上行数据的情况下,所述UE从网络侧设备接收目标下行控制信息DCI,所述目标DCI用于调度目标上行数据;在所述目标DCI包括的指示信息满足第一预设条件的情况下,所述UE采用第二波形传输所述目标上行数据;其中,所述指示信息用于指示:所述目标上行数据的传输参数。
- 根据权利要求1所述的方法,其中,所述指示信息包括以下至少一项:预编码和传输流数信息TPMI域、探测参考信号资源指示信息SRI域、频域资源分配指示信息FDRA域、调制编码方式MCS索引值、信道状态信息CSI请求域。
- 根据权利要求2所述的方法,其中,在所述第一波形为循环前缀正交频分复用CP-OFDM,且所述第二波形为离散傅里叶变换扩频的正交频分复用DFT-S-OFDM的情况下,所述指示信息满足所述第一预设条件包括以下至少一项:所述TPMI域对应的信道秩数rank小于或等于第一阈值;所述SRI域对应的信道秩数rank小于或等于第二阈值;所述FDRA域指示的物理资源块PRB为连续的PRB;所述MCS索引值小于第三阈值;所述指示信息中不包括所述CSI请求域;所述指示信息中包括所述CSI请求域,且所述CSI请求域不用于触发所述UE上报CSI报告。
- 根据权利要求1所述的方法,其中,所述指示信息包括:第一解调参考信号DMRS指示信息域,所述第一DMRS指示信息域用于指示:在被配置为采用所述第一波形传输所述目标上行数据的情况下,所述目标上行数据所使用的DMRS的传输端口;所述UE采用第二波形传输所述目标上行数据之前,所述方法还包括:所述UE根据所述第一DMRS指示信息域,确定目标传输端口;所述UE采用第二波形传输所述目标上行数据,包括:所述UE根据所述目标传输端口,采用所述第二波形传输所述DMRS。
- 根据权利要求4所述的方法,其中,所述第一DMRS指示信息域对应X个比特位,X是基于所述第一波形和所述第二波形中,状态数量值大的波形确定的,X为正整数;在所述第二波形对应的状态数量值,小于所述第一波形对应的状态数量值的情况下,所述目标传输端口为:目标比特位指示的传输端口;在所述第二波形对应的状态数量值,大于所述第一波形对应的状态数量值的情况下,所述目标传输端口为:根据所述第二波形对应的状态确定的传输端口;其中,所述目标比特位为:所述X个比特位中的前Y个比特位,或后Z个比特位,Y、Z均为正整数。
- 根据权利要求4所述的方法,其中,所述UE根据所述第一DMRS指示信息域,确定目标传输端口,包括:所述UE基于M个第一映射关系,根据所述第一DMRS指示信息域的索引值,确 定第二DMRS指示信息域的索引值,M为正整数;所述UE根据所述第二DMRS指示信息域的索引值,确定所述目标传输端口;其中,每个第一映射关系分别为:不同波形对应的不同DMRS指示信息域的索引值间的映射关系;所述第二DMRS指示信息域用于指示:在被配置为采用所述第二波形传输所述目标上行数据的情况下,所述目标上行数据所使用的DMRS的传输端口。
- 根据权利要求1所述的方法,其中,所述指示信息包括N个子指示信息,N为正整数;所述UE采用第二波形传输所述目标上行数据,包括:在所述N个子指示信息中的Q个子指示信息满足第二预设条件的情况下,所述UE根据其他子指示信息,采用所述第二波形传输所述目标上行数据;其中,所述其他子指示信息为:所述N个子指示信息中,除所述Q个子指示信息外的子指示信息,Q为正整数。
- 一种上行数据传输装置,所述上行数据传输装置包括:接收模块和传输模块;所述接收模块,用于在上行数据传输装置被配置为采用第一波形传输上行数据的情况下,从网络侧设备接收目标DCI,所述目标DCI用于调度目标上行数据;所述传输模块,用于在所述接收模块接收的所述目标DCI包括的指示信息满足第一预设条件的情况下,采用第二波形传输所述目标上行数据;其中,所述指示信息用于指示:所述目标上行数据的传输参数。
- 根据权利要求8所述的上行数据传输装置,其中,所述指示信息包括以下至少一项:TPMI域、SRI域、FDRA域、MCS索引值、CSI请求域。
- 根据权利要求9所述的上行数据传输装置,其中,在所述第一波形为CP-OFDM,且所述第二波形为DFT-S-OFDM的情况下,所述指示信息满足所述第一预设条件包括以下至少一项:所述TPMI域对应的rank小于或等于第一阈值;所述SRI域对应的rank小于或等于第二阈值;所述FDRA域指示的PRB为连续的PRB;所述MCS索引值小于第三阈值;所述指示信息中不包括所述CSI请求域;所述指示信息中包括所述CSI请求域,且所述CSI请求域不用于触发所述上行数据传输装置上报CSI报告。
- 根据权利要求8所述的上行数据传输装置,其中,所述指示信息包括:第一DMRS指示信息域,所述第一DMRS指示信息域用于指示:在被配置为采用所述第一波形传输所述目标上行数据的情况下,所述目标上行数据所使用的DMRS的传输端口;所述上行数据传输装置还包括:处理模块;所述处理模块,用于根据所述第一DMRS指示信息域,确定目标传输端口;所述传输模块,具体用于根据所述处理模块确定的所述目标传输端口,采用所述第二波形传输所述DMRS。
- 根据权利要求11所述的上行数据传输装置,其中,所述第一DMRS指示信息 域对应X个比特位,X是基于所述第一波形和所述第二波形中,状态数量值大的波形确定的,X为正整数;在所述第二波形对应的状态数量值,小于所述第一波形对应的状态数量值的情况下,所述目标传输端口为:目标比特位指示的传输端口;在所述第二波形对应的状态数量值,大于所述第一波形对应的状态数量值的情况下,所述目标传输端口为:根据所述第二波形对应的状态确定的传输端口;其中,所述目标比特位为:所述X个比特位中的前Y个比特位,或后Z个比特位,Y、Z均为正整数。
- 根据权利要求11所述的上行数据传输装置,其中,所述处理模块,具体用于基于M个第一映射关系,根据所述第一DMRS指示信息域的索引值,确定第二DMRS指示信息域的索引值,M为正整数;并根据所述第二DMRS指示信息域的索引值,确定所述目标传输端口;其中,每个第一映射关系分别为:不同波形对应的不同DMRS指示信息域的索引值间的映射关系;所述第二DMRS指示信息域用于指示:在被配置为采用所述第二波形传输所述目标上行数据的情况下,所述目标上行数据所使用的DMRS的传输端口。
- 根据权利要求8所述的上行数据传输装置,其中,所述指示信息包括N个子指示信息,N为正整数;所述传输模块,具体用于在所述N个子指示信息中的Q个子指示信息满足第二预设条件的情况下,根据其他子指示信息,采用所述第二波形传输所述目标上行数据;其中,所述其他子指示信息为:所述N个子指示信息中,除所述Q个子指示信息外的子指示信息,Q为正整数。
- 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至7中任一项所述的上行数据传输方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至7中任一项所述的上行数据传输方法。
- 一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至7中任一项所述的上行数据传输方法的步骤。
- 一种计算机程序产品,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至7中任一项所述的上行数据传输方法的步骤。
- 一种电子设备,包括所述电子设备被配置成用于执行如权利要求1至7中任一项所述的上行数据传输方法的步骤。
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US18/526,094 US20240107530A1 (en) | 2021-06-02 | 2023-12-01 | Uplink Data Transmission Method, Terminal, and Medium |
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CN111316729A (zh) * | 2017-09-26 | 2020-06-19 | 夏普株式会社 | 终端装置以及基站装置 |
WO2021047973A1 (en) * | 2019-09-09 | 2021-03-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Switching waveforms for uplink transmission in nr network |
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CN111316729A (zh) * | 2017-09-26 | 2020-06-19 | 夏普株式会社 | 终端装置以及基站装置 |
WO2021047973A1 (en) * | 2019-09-09 | 2021-03-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Switching waveforms for uplink transmission in nr network |
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