WO2019096247A1 - Procédé, dispositif et système de transmission de signaux de liaison montante sans programmation - Google Patents

Procédé, dispositif et système de transmission de signaux de liaison montante sans programmation Download PDF

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Publication number
WO2019096247A1
WO2019096247A1 PCT/CN2018/115890 CN2018115890W WO2019096247A1 WO 2019096247 A1 WO2019096247 A1 WO 2019096247A1 CN 2018115890 W CN2018115890 W CN 2018115890W WO 2019096247 A1 WO2019096247 A1 WO 2019096247A1
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Prior art keywords
dmrs
user terminal
information
data signal
sequence
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PCT/CN2018/115890
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English (en)
Chinese (zh)
Inventor
李建军
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维沃移动通信有限公司
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an unscheduled uplink signal transmission method, apparatus, and system.
  • the fifth generation 5G communication system is capable of supporting massive links, such as the narrowband Internet of Things (NB IoT).
  • massive links such as the narrowband Internet of Things (NB IoT).
  • the amount of data for most user terminals is often small in massive links. If data transmission is also performed through scheduling and resource allocation information, a large amount of signaling information is required. Therefore, in order to improve system efficiency under massive link conditions, the scheduling-free data transmission method becomes an important candidate.
  • the user terminal since there is no scheduling information, multiple user terminals may use the same resource to transmit signals, resulting in interference between signals transmitted by multiple user terminals.
  • the user terminal has interference between the uplink data signal of the unscheduled transmission and the Demodulation Reference Signal (DMRS) transmitted by other user terminals, and the DMRS is an important reference signal in the communication transmission, therefore, how to avoid the user
  • DMRS Demodulation Reference Signal
  • Some embodiments of the present disclosure provide a scheduling-free uplink signal transmission method, apparatus, and system to address the problem of interference between an upstream data signal and a DMRS. .
  • some embodiments of the present disclosure provide a scheduling-free uplink signal transmission method, which is applied to a user terminal, including: receiving an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information; And transmitting an uplink data signal according to the DMRS information and the data signal related information.
  • some embodiments of the present disclosure further provide a scheduling-free uplink signal transmission method, where the method is applied to a base station, including: sending an uplink transmission parameter to a user terminal, where the uplink transmission parameter includes data signal related information and DMRS information; Receiving an uplink data signal that is transmitted by the user terminal according to the DMRS information and the data signal related information.
  • some embodiments of the present disclosure further provide a user terminal, including: a receiving module, configured to receive an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information; and a transmission module, And configured to transmit an uplink data signal according to the DMRS information and the data signal related information.
  • some embodiments of the present disclosure further provide a base station, including: a sending module, configured to send an uplink transmission parameter to a user terminal, where the uplink transmission parameter includes data signal related information and DMRS information; And receiving an uplink data signal that is transmitted by the user terminal according to the DMRS information and the data signal related information.
  • some embodiments of the present disclosure further provide a user terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being The steps in the user terminal-side unscheduled uplink signal transmission method provided by some embodiments of the present disclosure are implemented when the processor is executed.
  • some embodiments of the present disclosure further provide a base station, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being The steps in the base station side unscheduled uplink signal transmission method provided by some embodiments of the present disclosure are implemented when the processor executes.
  • some embodiments of the present disclosure further provide a non-transitory computer readable storage medium having stored thereon a computer program, the computer program being processed
  • the steps of the user-side-side unscheduled uplink signal transmission method provided by some embodiments of the present disclosure are implemented when the device is executed.
  • some embodiments of the present disclosure further provide a non-transitory computer readable storage medium, wherein the non-volatile computer readable storage medium stores a computer program thereon, the computer program
  • the steps of the base station side unscheduled uplink signal transmission method provided by some embodiments of the present disclosure are implemented when executed by the processor.
  • some embodiments of the present disclosure further provide an unscheduled uplink signal transmission system, including: a user terminal and a base station provided by some embodiments of the present disclosure.
  • the uplink data signal is transmitted according to the DMRS information and the data signal related information in the uplink transmission parameter configured by the base station, so that interference between the uplink data signal and the DMRS based on the unscheduled transmission can be avoided.
  • FIG. 1 is a structural diagram of a schedule-free uplink signal transmission system to which some embodiments of the present disclosure are applicable;
  • FIG. 2 is a flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure
  • FIG. 3 is another flowchart of a method for scheduling an unscheduled uplink signal provided by some embodiments of the present disclosure
  • FIG. 4 is still another flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure
  • FIG. 5 is still another flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure
  • FIG. 6 is a schematic diagram of a scheduling-free uplink signal transmission method provided by some embodiments of the present disclosure.
  • FIG. 7 is a structural diagram of a user terminal to which some embodiments of the present disclosure are applicable.
  • FIG. 8 is a structural diagram of a base station to which some embodiments of the present disclosure are applicable.
  • FIG. 9 is a schematic diagram of a hardware structure of a user terminal implementing some embodiments of the present disclosure.
  • FIG. 10 is another block diagram of a base station to which some embodiments of the present disclosure may be applied.
  • the present disclosure provides a scheduling-free uplink signal transmission method applied to a user terminal.
  • the method includes: receiving an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information; and transmitting an uplink data signal according to the DMRS information and the data signal related information.
  • FIG. 1 is a structural diagram of an unscheduled uplink signal transmission system to which some embodiments of the present disclosure are applicable.
  • the user terminal 11 and the base station 12 are included, wherein the user terminal 11 may be a UE (User Equipment), for example: mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID) or A terminal side device such as a wearable device, it should be noted that the specific type of the user terminal 11 is not limited in some embodiments of the present disclosure.
  • UE User Equipment
  • PDA personal digital assistant
  • MID mobile internet device
  • a terminal side device such as a wearable device
  • the user terminal 11 can establish communication with the base station 12, wherein the network in the drawing can indicate that the user terminal 11 and the base station 12 establish wireless communication, and the base station 12 can be a base station such as an LTE eNB or a 5G NR NB.
  • the specific types of the base station 12 are not limited in some embodiments of the present disclosure, and specific functions of the user terminal 11 and the base station 12 will be specifically described by the following embodiments.
  • FIG. 2 is a flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure. The method is applied to a user terminal. As shown in FIG. 2, the following steps 201-202 are included.
  • Step 201 Receive uplink transmission parameters configured by the base station, where the uplink transmission parameters include data signal related information and DMRS information.
  • the uplink transmission parameter may be an uplink transmission parameter configured by Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the DMRS information may include DMRS information of the user terminal, for example, information indicating a DMRS sequence of the user terminal or information indicating a DMRS antenna port of the user terminal, and the like. Or the foregoing DMRS information may further include DMRS information of other user terminals except the user terminal, for example, a total number of antenna ports used for transmitting the DMRS sequence, or resources indicating that the DMRS sequence of other user terminals may be occupied. Information and so on.
  • the data signal related information may be related information for transmitting an uplink signal, such as a waveform, a modulation and coding mode, frequency domain resource information, and time domain resource information, and the like.
  • Step 202 Transmit an uplink data signal according to the DMRS information and the data signal related information.
  • the uplink data signal may be an uplink data symbol signal, and the uplink data signal is an uplink unscheduled data signal.
  • the user terminal may determine resources that may be occupied by the DMRS sequence of other user terminals according to the foregoing DMRS information, so that step 202 may send an uplink data signal according to the data signal related information on resources other than resources that may be occupied by the DMRS sequence of other user terminals.
  • the transmitting the uplink data signal according to the data signal related information may be sending the uplink data signal according to the waveform, the modulation and coding mode, the frequency domain resource information, the time domain resource information, and the like.
  • the DMRS information may be added to the uplink transmission parameter by using the foregoing steps, and the user terminal may determine resources that may be occupied by the DMRS sequence of other user terminals according to the DMRS information, so that when the uplink data signal is transmitted, the DMRS sequence of other user terminals may be considered.
  • the occupied resources can avoid interference between the uplink data signal based on the unscheduled transmission and the DMRS sequence of other user terminals.
  • the uplink data signal by transmitting the uplink data signal according to the DMRS information included in the uplink transmission parameter configured by the base station, interference between the uplink data signal based on the unscheduled transmission and the DMRS can be avoided.
  • FIG. 3 is a flowchart of another method for scheduling a non-scheduled uplink signal according to some embodiments of the present disclosure. The method is applied to a user terminal. As shown in FIG. 3, the following steps 301-302 are included.
  • Step 301 Receive an uplink transmission parameter configured by the base station, where the uplink transmission parameter includes data signal related information and DMRS information, where the DMRS information includes indication information of a DMRS sequence of the user terminal.
  • the indication information may be indication information indicating a sequence number of the DMRS sequence of the user terminal.
  • the DMRS sequence is a sequence of multiple orthogonal sequences.
  • a general DMRS may have 12 orthogonal sequences. These 12 orthogonal sequences are obtained from 12 Zadoff-Chu sequences (abbreviated as: CZ sequences) by 12 different cyclic shifts.
  • CZ sequences Zadoff-Chu sequences
  • eight different cyclic shift sequences can be selected from 12 orthogonal sequences as DMRS sequences for unscheduled data transmission. Therefore, in this embodiment, the indication information can be transmitted by 3 bits.
  • the specific sequence indications are shown in Table 1:
  • the sequence number of the DMRS sequence of the user terminal can be indicated by the above 3 bits.
  • the waveform of the uplink data signal is a Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.
  • the indication information of the DMRS sequence is the sequence number of the DMRS sequence.
  • the DFT-s-OFDM waveform is Single-Frequency-Division Multiple Access (FDMA).
  • FDMA Single-Frequency-Division Multiple Access
  • Different user terminals use the same pilot resources, and their DMRSs are orthogonal to each other through orthogonal sequences.
  • the above DMRS sequence can also be transmitted using a DFT-s-OFDM waveform.
  • the DFT-s-OFDM waveform may be configured by a base station.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the waveform parameter may be used to indicate a waveform used by the user terminal for uplink-free scheduling data transmission, for example, a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform or a DFT-S- OFDM waveform.
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing
  • the above code modulation mode may be used to indicate a modulation mode, a coding rate, a redundancy version, and the like used by the user terminal for uplink-free scheduling data transmission.
  • the frequency resource parameter may be used to indicate the allowed frequency resource information of the data transmission of the uplink scheduling of the user terminal, for example, including the quantity and location of a Physical Resource Group (PRG), or only the PRG location information.
  • PRG Physical Resource Group
  • the time resource parameter may be used to indicate time information of the allowed use of the data transmission of the uplink-free scheduling of the user terminal, for example, information including a frame number and a slot number.
  • the corresponding transmission parameters can be configured for each user terminal by using the uplink transmission parameter, and the interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • Step 302 Transmit the DMRS sequence on a resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and transmit the uplink on a resource other than the resource corresponding to the DMRS sequence. Data signal.
  • the other resources other than the resources corresponding to the DMRS sequence may be understood as the time domain resources other than the time domain resources to which the resources corresponding to the DMRS sequence belong, for example, the RE corresponding to the DMRS sequence is in the first
  • the uplink data signal may be transmitted on other OFDM symbols than the first OFDM symbol.
  • the uplink data signal and the DMRS sequence are not in the same time domain resource, and different user terminals use the same pilot resource to transmit the DMRS sequence, interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • the waveform of the DMRS sequence and the uplink data signal may be a DFT-S-OFDM waveform.
  • different user terminals can use the same pilot resource to transmit the DMRS sequence, so as to avoid interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals.
  • the resource may be an RB.
  • the resource corresponding to the DMRS sequence is the RB corresponding to the DMRS sequence.
  • other resources may also be used, and some embodiments of the present disclosure are not limited thereto.
  • the time domain resource occupied by the uplink data signal is different from the time domain resource occupied by the DMRS of other user terminals, so that the interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • FIG. 4 is a flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure. The method is applied to a user terminal. As shown in FIG. 4, the following steps 401-402 are included.
  • Step 401 Receive an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information, where the DMRS information includes DMRS information of the user terminal and other users except the user terminal. DMRS information of the terminal.
  • the DMRS information of the user terminal may be used to indicate that the user terminal transmits related information of the DMRS sequence, for example, indication information of the DMRS antenna port or resource location information occupied by the DMRS sequence.
  • the DMRS information of other user terminals may be related information indicating a sequence of DMRSs of other user terminals, for example, indication information of a total number of antenna ports for transmitting a DMRS sequence or resource location information occupied by a DMRS sequence of other user terminals, and the like. .
  • the DMRS information of other user terminals may also be referred to as DMRS information required by the user terminal resource mapping.
  • DMRS information required by the user terminal resource mapping For example: as shown in Table 3,
  • the foregoing data signal related information includes the following one or more items: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • Step 402 During resource mapping, mapping a DMRS sequence to a resource corresponding to the DMRS information of the user terminal, and mapping the uplink data signal to a resource other than the DMRS information of the other user terminal. Other resources, and transmitting the DMRS sequence and the uplink data signal according to the data signal related information.
  • the resource corresponding to the DMRS information of the user terminal may be a resource indicated by the DMRS information of the user terminal or a resource corresponding to the DMRS information of the user terminal.
  • the resources corresponding to the DMRS information of the other user terminals may be resources indicated by DMRS information of other user terminals or resources corresponding to DMRS information of other user terminals.
  • the uplink data signal can be mapped to other resources than the resources corresponding to the DMRS information of other user terminals, so that the interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting the DMRS.
  • the DMRS antenna port of the user terminal is one of the total antenna ports used for transmitting the DMRS.
  • the user terminal can be configured to transmit information using only one antenna port, and different user terminals use different antenna ports to transmit. Since the base station configures the total number of antenna ports for transmitting the DMRS to the user terminal (that is, the total number of DMRS antenna ports of the user), the user terminal can know the resource positions occupied by the DMRS of all user terminals by using the number, and based on these locations. The information thus completes the Rate mapping.
  • the indication information of the DMRS antenna port of the user terminal may be an antenna port number used by the user terminal for self-scheduled data transmission, and the DMRS antenna port may be any one of the total antenna ports of the DMRS. Therefore, the contents of Table 3 can be indicated by the method of Table 4.
  • the DMRS antenna port information used by the uplink unscheduled data transmission and the total number of antenna ports of the DMRS can be determined.
  • the DMRS antenna port information used by the uplink unscheduled data transmission may determine the resource location occupied by the DMRS sequence of the user terminal, and the total number of antenna ports of the DMRS may determine the resource location that may be occupied by the DMRS sequence of other user terminals.
  • a pilot pattern may be used to determine a resource location that may be occupied by a DMRS sequence of another user terminal. For example, the user terminal obtains a plurality of pilot patterns in advance, and the plurality of pilot patterns correspond to different antenna ports of different DMRSs.
  • the user terminal After determining the total number of antenna ports of the DMRS, the user terminal can determine its corresponding pilot pattern, and thus can determine the resource location corresponding to each DMRS antenna port, that is, determine the resource location that the DMRS sequence of other user terminals may occupy.
  • the DMRS sequence is mapped to the resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped to other resources than the resource corresponding to the DMRS information of the other user terminal.
  • sending the DMRS sequence and the uplink data signal according to the data signal related information including:
  • the DMRS sequence is mapped to the resource corresponding to the DMRS antenna port of the user terminal, and the uplink data is obtained according to a pilot pattern corresponding to the total number of antenna ports used for transmitting the DMRS.
  • the signal is mapped to other resources than the resource corresponding to the total number of antenna ports for transmitting the DMRS sequence, and the DMRS sequence and the uplink data signal are transmitted according to the data signal related information.
  • the resources of the uplink data signal mapping of the user terminal may be different from the resources that may be occupied by the DMRS sequence of other user terminals, thereby avoiding interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals.
  • the uplink DMRS may include a front load DMRS (Front-load DMRS) and a supplementary DMRS (Additional DMRS). Therefore, in some embodiments, the DMRS information of the user terminal includes: Front-load of the user terminal. The indication information of the DMRS antenna port, and/or the indication information of the additional DMRS antenna port of the user terminal;
  • the DMRS information of the other user terminals includes: a total number of antenna ports for transmitting the Front-load DMRS sequence, and/or a total number of antenna ports for transmitting the Additional DMRS sequence.
  • the DMRS may or may not exist. If it does not exist, it can be represented by setting the total number of antenna ports of the DMRS to 0, and the indication information of the additional DMRS antenna port of the user terminal may also be 0.
  • the DMRS sequence transmitted by the user terminal is a Front-load DMRS sequence, and the user terminal transmits the DMRS sequence according to the indication information of the Front-load DMRS antenna port of the user terminal, and according to the DMRS sequence for transmitting the Front-load DMRS.
  • the RRC configuration information of the DMRS is as shown in Table 5.
  • the interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
  • the DMRS sequence and the uplink data signal in the CP-OFDM waveform may be transmitted on different resources in the same time domain, for example, on different REs of the same OFDM symbol.
  • the above DMRS sequence can also be transmitted using a CP-OFDM waveform.
  • the resource may be an RB.
  • the resource corresponding to the DMRS sequence is the RB corresponding to the DMRS sequence.
  • other resources may also be used, and some embodiments of the present disclosure are not limited thereto.
  • the DMRS sequence may be mapped to the resource corresponding to the DMRS information of the user terminal during the route mapping, and the uplink data signal may be mapped to other resources corresponding to the DMRS information of the other user terminal. Resources, so that interference between the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided.
  • FIG. 5 is a flowchart of a method for scheduling an unscheduled uplink signal according to some embodiments of the present disclosure. The method is applied to a base station, as shown in FIG. 5, and includes the following steps 501-52.
  • Step 501 Send an uplink transmission parameter to the user terminal, where the uplink transmission parameter includes data signal related information and DMRS information.
  • Step 502 Receive an uplink data signal that is sent by the user terminal according to the DMRS information and the data signal related information.
  • the DMRS information includes indication information of a DMRS sequence of the user terminal
  • the DMRS sequence transmitted on a resource corresponding to the DMRS sequence Receiving, by the user terminal, the DMRS sequence transmitted on a resource corresponding to the DMRS sequence, and transmitting on a resource other than the resource corresponding to the DMRS sequence, according to the indication information and the data signal related information.
  • the uplink data signal receives, by the user terminal, the DMRS sequence transmitted on a resource corresponding to the DMRS sequence, and transmitting on a resource other than the resource corresponding to the DMRS sequence, according to the indication information and the data signal related information.
  • the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform
  • the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
  • the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal;
  • the DMRS sequence and the uplink data signal that are sent according to the data signal related information, where the DMRS sequence is mapped to a resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped in the Other resources than the resources corresponding to the DMRS information of other user terminals are described.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting the DMRS.
  • the DMRS sequence maps resources corresponding to the DMRS antenna port of the user terminal, and the uplink data signal is mapped to resources other than resources corresponding to the total number of antenna ports used for transmitting the DMRS.
  • the DMRS information of the user terminal includes: indication information of a Front-load DMRS antenna port of the user terminal, and/or indication information of an Additional DMRS antenna port of the user terminal;
  • the DMRS information of the other user terminals includes: a total number of antenna ports for transmitting the Front-load DMRS, and/or a total number of antenna ports for transmitting the Additional DMRS.
  • the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
  • the resource is an RB.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the embodiment is the implementation manner of the base station corresponding to the embodiment shown in FIG. 2 to FIG. 4 , and the specific implementation manners of the embodiment may refer to the related embodiments of the embodiment shown in FIG. 2 to FIG. Advantageous effects, in order to avoid repeated explanation, will not be described here.
  • FIG. 6 is a schematic diagram of an uplink signaling method provided by some embodiments of the present disclosure. As shown in FIG. 6, the following steps 601-606 are included.
  • Step 601 The base station configures an uplink transmission parameter for the user terminal by using RRC signaling, where the uplink transmission parameter includes a waveform of the unscheduled uplink transmission of the user terminal, a coded modulation mode, a frequency resource and a time resource for transmission, and related information such as DMRS information.
  • the uplink transmission parameter includes a waveform of the unscheduled uplink transmission of the user terminal, a coded modulation mode, a frequency resource and a time resource for transmission, and related information such as DMRS information.
  • Step 602 The user terminal receives an uplink transmission parameter configured by the base station.
  • Step 603 The user terminal generates an uplink data signal according to the uplink transmission parameter.
  • Step 604 The user terminal generates a DMRS sequence according to the DMRS information.
  • Step 605 The user terminal maps the DMRS sequence and the uplink data signal to the corresponding RE according to the DMRS information.
  • the RE mapped by the uplink data signal is an RE other than the RE that may be occupied by the DMRS sequence of other user terminals.
  • Step 606 The user terminal sends the DMRS sequence and the uplink data signal on the RRC configured uplink and time resources.
  • FIG. 7 is a structural diagram of a user terminal to which some embodiments of the present disclosure are applicable.
  • the user terminal 700 includes: a receiving module 701, configured to receive an uplink transmission parameter configured by a base station,
  • the uplink transmission parameter includes data signal related information and DMRS information
  • the transmission module 702 is configured to transmit an uplink data signal according to the DMRS information and the data signal related information.
  • the DMRS information includes indication information of a DMRS sequence of the user terminal
  • the transmitting module 702 is specifically configured to: according to the indication information and the data signal related information, transmit the DMRS sequence on a resource corresponding to the DMRS sequence, and other than the resource corresponding to the DMRS sequence.
  • the uplink data signal is transmitted on the resource.
  • the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform
  • the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
  • the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal;
  • the transmission module 702 is specifically configured to: when the REST mapping is performed, map the DMRS sequence to the resource corresponding to the DMRS information of the user terminal, and map the uplink data signal to the resource corresponding to the DMRS information of the other user terminal. And other resources, and transmitting the DMRS sequence and the uplink data signal according to the data signal related information.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting the DMRS.
  • the transmitting module 702 is specifically configured to: when the route mapping is performed, map the DMRS sequence to the user terminal according to a pilot pattern that is acquired in advance corresponding to a total number of antenna ports used for transmitting the DMRS. Resources corresponding to the DMRS antenna port, and resources other than resources corresponding to the total number of antenna ports for transmitting the DMRS sequence, and transmitting the uplink data signal according to the data signal related information a DMRS sequence and the uplink data signal.
  • the DMRS information of the user terminal includes: indication information of a Front-load DMRS antenna port of the user terminal, and/or indication information of an Additional DMRS antenna port of the user terminal;
  • the DMRS information of the other user terminals includes: a total number of antenna ports for transmitting the Front-load DMRS, and/or a total number of antenna ports for transmitting the Additional DMRS.
  • the waveform of the DMRS sequence and the uplink data signal is a CP-OFDM waveform.
  • the resource is an RB.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the base station provided by some embodiments of the present disclosure can implement various processes implemented by the user equipment in the method embodiments of FIG. 2 to FIG. 4, to avoid repetition, details are not described herein, and uplink data signals and other user terminals of the user terminal can be avoided. Interference of the DMRS sequence.
  • FIG. 8 is a structural diagram of a base station to which some embodiments of the present disclosure are applicable.
  • the base station 800 includes: a sending module 801, configured to send an uplink transmission parameter to a user terminal, where The uplink transmission parameter includes data signal related information and DMRS information, and the receiving module 802 is configured to receive an uplink data signal that is transmitted by the user terminal according to the DMRS information and the data signal related information.
  • the DMRS information includes indication information of a DMRS sequence of the user terminal.
  • the receiving module 802 is specifically configured to receive, according to the indication information and the data signal related information, the DMRS sequence that is transmitted on a resource corresponding to the DMRS sequence, and corresponding to the DMRS sequence.
  • the uplink data signal transmitted on other resources than the resource.
  • the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform
  • the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
  • the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal;
  • the receiving module 802 is specifically configured to receive a DMRS sequence and the uplink data signal that are sent by the user terminal according to the data signal related information, where the DMRS sequence maps resources corresponding to the DMRS information of the user terminal. And the uplink data signal is mapped to a resource other than the resource corresponding to the DMRS information of the other user terminal.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting a DMRS sequence.
  • the DMRS sequence maps resources corresponding to the DMRS antenna port of the user terminal, and the uplink data signal is mapped to resources other than resources corresponding to the total number of antenna ports used for transmitting the DMRS.
  • the DMRS information of the user terminal includes: indication information of a Front-load DMRS antenna port of the user terminal, and/or indication information of an Additional DMRS antenna port of the user terminal; the other user terminal
  • the DMRS information includes: the total number of antenna ports used to transmit the Front-load DMRS, and/or the total number of antenna ports used to transmit the Additional DMRS.
  • the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
  • the resource is a resource block RB.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the base station provided by some embodiments of the present disclosure can implement various processes implemented by the base station in the method embodiment of FIG. 5. To avoid repetition, details are not described herein, and the uplink data signal of the user terminal and the DMRS sequence of other user terminals can be avoided. interference.
  • FIG. 9 is a schematic diagram showing the hardware structure of a user terminal that implements an embodiment of the present disclosure.
  • the user terminal 900 includes, but is not limited to, a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and Power supply 911 and other components.
  • the user terminal structure shown in FIG. 9 does not constitute a limitation on the user terminal, and the user terminal may include more or less components than the illustration, or combine some components, or different components. Arrangement.
  • user terminals include, but are not limited to, cell phones, tablets, laptops, PDAs, in-vehicle user terminals, wearable devices, and pedometers, and the like.
  • the radio frequency unit 901 is configured to receive an uplink transmission parameter configured by the base station, the uplink transmission parameter data signal related information, and DMRS information, and transmit an uplink data signal according to the DMRS information and the data signal related information.
  • the DMRS information includes indication information of a DMRS sequence of the user terminal
  • the radio unit 901 And transmitting, by the radio unit 901, the uplink data signal according to the DMRS information and the data signal related information, including: transmitting, according to the indication information and the data signal related information, the resource corresponding to the DMRS sequence And transmitting, by the DMRS sequence, the uplink data signal on a resource other than the resource corresponding to the DMRS sequence.
  • the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform
  • the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
  • the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal;
  • the radio unit 901 And transmitting, by the radio unit 901, the uplink data signal according to the DMRS information and the data signal related information, including: mapping, in the case of Rate mapping, a DMRS sequence to a resource corresponding to the DMRS information of the user terminal, and The uplink data signal is mapped to other resources than the resources corresponding to the DMRS information of the other user terminals, and the DMRS sequence and the uplink data signal are transmitted according to the data signal related information.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting the DMRS.
  • the DMRS sequence is mapped to the resource corresponding to the DMRS information of the user terminal, and the DMRS information corresponding to the uplink data signal is mapped to the other user terminal.
  • Transmitting the DMRS sequence and the uplink data signal according to the data signal related information including: correspondingly, according to the total number of antenna ports used for transmitting the DMRS, in the case of Rate mapping a pilot pattern, mapping the DMRS sequence to a resource corresponding to a DMRS antenna port of the user terminal, and mapping the uplink data signal to a resource corresponding to the total number of antenna ports used to transmit the DMRS sequence And other resources, and transmitting the DMRS sequence and the uplink data signal according to the data signal related information.
  • the DMRS information of the user terminal includes: indication information of a front-load Front-load DMRS antenna port of the user terminal, and/or indication information of a supplemental Additional DMRS antenna port of the user terminal;
  • the DMRS information of the other user terminals includes: a total number of antenna ports for transmitting the Front-load DMRS, and/or a total number of antenna ports for transmitting the Additional DMRS.
  • the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
  • the resource is an RB.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the user terminal 900 can avoid interference of the uplink data signal with the DMRS sequence of other user terminals.
  • the radio frequency unit 901 may be configured to receive and transmit signals during or after receiving or transmitting information, and specifically, after receiving downlink data from the base station, processing the processor 910; Send the uplink data to the base station.
  • radio frequency unit 901 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 radio unit 901 can also communicate with the network and other devices through a wireless communication system.
  • the user terminal provides the user with wireless broadband Internet access through the network module 902, such as helping the user to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 903 can convert the audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as a sound. Moreover, the audio output unit 903 can also provide audio output (eg, call signal reception sound, message reception sound, etc.) related to a particular function performed by the user terminal 900.
  • the audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 904 is for receiving an audio or video signal.
  • the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042 that images an still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode.
  • the data is processed.
  • the processed image frame can be displayed on the display unit 906.
  • the image frames processed by the graphics processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio unit 901 or the network module 902.
  • the microphone 9042 can receive sound and can process such sound as audio data.
  • the processed audio data can be converted to a format output that can be transmitted to the mobile communication base station via the radio unit 901 in the case of a telephone call mode.
  • User terminal 900 also includes at least one type of sensor 905, such as a light sensor, motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 9061 according to the brightness of the ambient light, and the proximity sensor can close the display panel 9061 when the user terminal 900 moves to the ear. / or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the posture of the user terminal (such as horizontal and vertical screen switching, related games).
  • sensor 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, Infrared sensors and the like are not described here.
  • the display unit 906 is for displaying information input by the user or information provided to the user.
  • the display unit 906 can include a display panel 9061.
  • the display panel 9061 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the user input unit 907 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the user terminal.
  • the user input unit 907 includes a touch panel 9071 and other input devices 9072.
  • the touch panel 9071 also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 9071 or near the touch panel 9071. operating).
  • the touch panel 9071 may include two parts of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 910 receives the commands from the processor 910 and executes them.
  • the touch panel 9071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the user input unit 907 may also include other input devices 9072.
  • other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, and are not described herein again.
  • the touch panel 9071 may be overlaid on the display panel 9061.
  • the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel 9071 transmits to the processor 910 to determine the type of the touch event, and then the processor 910 according to the touch.
  • the type of event provides a corresponding visual output on display panel 9061.
  • the touch panel 9071 and the display panel 9061 are two independent components to implement the input and output functions of the user terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated. The input and output functions of the user terminal are implemented, and are not limited herein.
  • the interface unit 908 is an interface in which an external device is connected to the user terminal 900.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more.
  • the interface unit 908 can be configured to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within the user terminal 900 or can be used at the user terminal 900 and externally Data is transferred between devices.
  • Memory 909 can be used to store software programs as well as various data.
  • the memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.).
  • the memory 909 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • Processor 910 is the control center of the user terminal, connecting various portions of the entire user terminal using various interfaces and lines, by running or executing software programs and/or modules stored in memory 909, and recalling data stored in memory 909.
  • the user terminal performs various functions and processing data, thereby performing overall monitoring on the user terminal.
  • the processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, etc., and a modulation solution
  • the processor mainly handles wireless communication. It can be understood that the above modem processor may not be integrated into the processor 910.
  • the user terminal 900 can also include a power source 911 (such as a battery) that supplies power to the various components.
  • a power source 911 such as a battery
  • the power source 911 can be logically coupled to the processor 910 through a power management system to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • the user terminal 900 includes some functional modules not shown, and details are not described herein again.
  • some embodiments of the present disclosure further provide a user terminal, including a processor 910, a memory 909, a computer program stored on the memory 909 and executable on the processor 910, the computer program being processed by the processor
  • a user terminal including a processor 910, a memory 909, a computer program stored on the memory 909 and executable on the processor 910, the computer program being processed by the processor
  • the 910 is executed, the processes of the foregoing unscheduled uplink signal transmission method are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.
  • FIG. 10 is a structural diagram of another base station to which some embodiments of the present disclosure are applicable.
  • the base station 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, where The transceiver 1002 is configured to send an uplink transmission parameter to the user terminal, where the uplink transmission parameter includes data signal related information and DMRS information, and receives uplink data that is sent by the user terminal according to the DMRS information and the data signal related information. signal.
  • the DMRS information includes indication information of a DMRS sequence of the user terminal.
  • the uplink data signal that is transmitted by the user terminal according to the DMRS information and the data signal related information including: receiving, by the user terminal, the information according to the indication information and the data signal, And the DMRS sequence transmitted on a resource corresponding to the DMRS sequence, and the uplink data signal transmitted on a resource other than the resource corresponding to the DMRS sequence.
  • the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform
  • the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
  • the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal; and receiving, by the transceiver 1002, the user terminal according to the DMRS information and the
  • the uplink data signal transmitted by the data signal related information includes: receiving a DMRS sequence sent by the user terminal according to the data signal related information, and the uplink data signal, where the DMRS sequence is mapped to the DMRS information of the user terminal Corresponding resources, the uplink data signal is mapped to other resources than the resources corresponding to the DMRS information of the other user terminals.
  • the DMRS information of the user terminal includes indication information of a DMRS antenna port of the user terminal, and the DMRS information of the other user terminal includes a total number of antenna ports used for transmitting the DMRS.
  • the DMRS sequence maps a resource corresponding to a DMRS antenna port of the user terminal, and the uplink data signal is mapped to a resource other than a resource corresponding to the total number of antenna ports used for transmitting the DMRS.
  • the DMRS information of the user terminal includes: indication information of a Front-load DMRS antenna port of the user terminal, and/or indication information of an Additional DMRS antenna port of the user terminal; the other user terminal
  • the DMRS information includes: the total number of antenna ports used to transmit the Front-load DMRS, and/or the total number of antenna ports used to transmit the Additional DMRS.
  • the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
  • the resource is an RB.
  • the data signal related information includes one or more of the following: a waveform parameter, a coded modulation mode, a frequency resource parameter, and a time resource parameter.
  • the base station 900 can avoid interference of the uplink data signal based on the unscheduled transmission with the DMRS sequence of other user terminals.
  • the transceiver 1002 is configured to receive and transmit data under the control of the processor 1001, and the transceiver 1002 includes at least two antenna ports.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1002 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1004 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 can store data used by the processor 1001 in performing operations.
  • some embodiments of the present disclosure further provide a base station, including a processor 1001, a memory 1003, a computer program stored on the memory 1003 and executable on the processor 1001, the computer program being processed by the processor 1001
  • a base station including a processor 1001, a memory 1003, a computer program stored on the memory 1003 and executable on the processor 1001, the computer program being processed by the processor 1001
  • Some embodiments of the present disclosure also provide a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement each of the embodiments of the user-side-side unscheduled uplink signal transmission method process.
  • Some embodiments of the present disclosure further provide a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement various processes of an embodiment of a schedule-free uplink signal transmission method on a base station side .
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the computer readable storage medium referred to in this disclosure can be a volatile, nonvolatile, transient or non-transitory computer readable storage medium.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware.
  • the technical solution of the present disclosure which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods described in various embodiments of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un système de transmission de signaux de liaison montante sans programmation. Le procédé comporte les étapes consistant à: recevoir des paramètres de transmission de liaison montante configurés par une station de base, les paramètres de transmission de liaison montante comportant des informations liées au signal de données et des informations de DMRS; et, d'après les informations de DMRS et les informations liées au signal de données, transmettre un signal de données de liaison montante.
PCT/CN2018/115890 2017-11-17 2018-11-16 Procédé, dispositif et système de transmission de signaux de liaison montante sans programmation WO2019096247A1 (fr)

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Citations (3)

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WO2016133363A1 (fr) * 2015-02-17 2016-08-25 엘지전자 주식회사 Procédé de communication stbc mimo en liaison montante dans un système de communication sans fil et appareil associé

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US10028302B2 (en) * 2013-03-08 2018-07-17 Huawei Technologies Co., Ltd. System and method for uplink grant-free transmission scheme
US10827491B2 (en) * 2014-10-07 2020-11-03 Qualcomm Incorporated Techniques for transmitting a sounding reference signal or scheduling request over an unlicensed radio frequency spectrum band
CN107294691B (zh) * 2016-03-31 2022-06-14 北京三星通信技术研究有限公司 上行的解调参考符号的传输方法和装置
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CN103220791A (zh) * 2012-01-20 2013-07-24 中兴通讯股份有限公司 一种上行解调参考信号的信令资源分配方法和基站
CN105144817A (zh) * 2013-03-28 2015-12-09 夏普株式会社 用于解调参考信号选择的系统和方法
WO2016133363A1 (fr) * 2015-02-17 2016-08-25 엘지전자 주식회사 Procédé de communication stbc mimo en liaison montante dans un système de communication sans fil et appareil associé

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