WO2018059305A1 - Pusch的发送方法及装置、dci的指示方法及装置 - Google Patents

Pusch的发送方法及装置、dci的指示方法及装置 Download PDF

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Publication number
WO2018059305A1
WO2018059305A1 PCT/CN2017/102795 CN2017102795W WO2018059305A1 WO 2018059305 A1 WO2018059305 A1 WO 2018059305A1 CN 2017102795 W CN2017102795 W CN 2017102795W WO 2018059305 A1 WO2018059305 A1 WO 2018059305A1
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Prior art keywords
tti
dci
pusch
reference signal
determining
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PCT/CN2017/102795
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English (en)
French (fr)
Inventor
张雯
夏树强
张文峰
石靖
韩祥辉
梁春丽
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP17854755.0A priority Critical patent/EP3522658B1/en
Priority to US16/338,210 priority patent/US10863495B2/en
Publication of WO2018059305A1 publication Critical patent/WO2018059305A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1221Wireless traffic scheduling based on age of data to be sent
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078Timing of allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for transmitting a physical uplink shared channel (PUSCH) and a method and apparatus for indicating downlink control information (Downlink Control Information, DCI for short).
  • PUSCH physical uplink shared channel
  • DCI Downlink Control Information
  • 5G will support higher speed (Gbps), massive link (1M/Km2), ultra-low latency (1ms), higher reliability, and 100 times energy efficiency improvement. Support new changes in demand.
  • Gbps gigabits
  • M/Km2 massive link
  • ultra-low latency is a key indicator of 5G technology, which directly affects the development of time-limited services such as car networking, industrial automation, remote control, and smart grid.
  • a series of current standards for 5G delay reduction are gradually being advanced.
  • Transmission Time Interval is an important research direction for reducing the current delay. It aims to reduce the current TMS length of 1ms to 0.5ms or even 1-2 orthogonal frequency division multiplexing (Orthogonal Frequency Division).
  • the length of the multiplex (referred to as OFDM) symbol is reduced by a minimum of the minimum scheduling time, and the single transmission delay can be reduced by multiple times without changing the frame structure.
  • the 3rd Generation Partnership (3GPP) has also been proposed to discuss the TTI (short TTI) delay reduction technology.
  • the embodiment of the invention provides a method and a device for transmitting a PUSCH, and a method and a device for indicating a DCI.
  • the embodiment of the invention provides a method for transmitting a physical uplink shared channel PUSCH, including:
  • Determining a PUSCH transmission mode according to at least one of the following: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • the indication of the first DCI includes:
  • First indication indicating that the reference signal is transmitted on the designated TTI
  • a second indication indicating that the reference signal is not transmitted on the designated TTI
  • a third indication indicating that the PUSCH is transmitted on the designated TTI;
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • determining a manner of sending the PUSCH includes: transmitting a reference signal on the designated TTI.
  • determining the sending manner of the PUSCH includes: determining, according to the first preset condition, a sending manner of the PUSCH.
  • determining, according to the first preset condition, that the sending manner of the PUSCH includes:
  • Determining, by the PUSCH, that the PUSCH is sent in a time window before the specified TTI the manner of transmitting the PUSCH includes: not transmitting a reference signal on the designated TTI; when there is no time window before the designated TTI
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI, or not transmitting a reference signal and data on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • Determining, when the reference signal is sent in a time window before the designated TTI, the manner of transmitting the PUSCH includes: not transmitting a reference signal on the designated TTI; when in a time window before the designated TTI
  • determining the manner in which the PUSCH is transmitted includes: transmitting a reference signal on the designated TTI, or not transmitting a reference signal and data on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • determining the manner in which the PUSCH is sent includes: not transmitting a reference signal on the specified TTI; when receiving an uplink grant sent by the base station in a time window before the TTI where the first DCI is located, Determining the manner in which the PUSCH is transmitted includes: transmitting a reference signal on the designated TTI, or not transmitting a reference signal and data on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • Determining the PUSCH sending manner includes: when the uplink grant sent by the base station is received in a time window before the TTI in which the first DCI is located, and the at least one uplink grant includes the first indication in the uplink grant, Not transmitting a reference signal on the specified TTI; receiving an uplink grant sent by the base station in a time window before the TTI where the first DCI is located, or receiving at least one uplink grant sent by the base station and the uplink
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI, or not transmitting the reference signal and data on the designated TTI.
  • determining the sending manner of the PUSCH includes: determining, according to the first preset condition, a sending manner of the PUSCH.
  • determining, according to the first preset condition, that the sending manner of the PUSCH includes:
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • the reference signal is not transmitted on, or the reference signal and data are not transmitted on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • Determining, by the specified TTI, that the indication bit in the first DCI is inverted with respect to the indication bit in the third DCI in a time window before the designated TTI The reference signal is not sent, or the reference signal and the data are not sent on the specified TTI, where the third DCI is within a time window before the specified TTI, and the PUSCH corresponding to the specified TTI is transmitted. DCI;
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • determining that the PUSCH is sent includes: Not transmitting a reference signal on the specified TTI, where the fourth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining that the PUSCH is sent includes: The reference signal is not transmitted on the designated TTI, or the reference signal and data are not transmitted on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI
  • the fifth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining that the PUSCH is sent includes: The reference signal is not transmitted on the designated TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • the sending manner of the PUSCH includes: transmitting a reference signal in the candidate DMRS time domain location.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • Determining, when the reference signal is sent in a time window before the designated TTI, the manner of transmitting the PUSCH includes: not transmitting a reference signal within the specified TTI; when in a time window before the designated TTI
  • determining the manner in which the PUSCH is transmitted includes: transmitting a reference signal within the specified TTI, or not transmitting a reference signal and data within the specified TTI.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • the candidate DMRS time domain location is specified by at least one of the following: a predefined setting, a base station configuration.
  • determining the sending manner of the PUSCH includes: determining, according to the first preset condition, a sending manner of the PUSCH.
  • determining, according to the first preset condition, that the sending manner of the PUSCH includes:
  • a time interval between the specified symbol and the symbol of the first transmitted data exceeds a Determining, by a threshold, a manner of transmitting the PUSCH, including: not transmitting a reference signal on the designated symbol, transmitting a reference signal on at least one symbol of the transmitted data; or transmitting a reference signal on the designated symbol, transmitting No data is sent on the symbol of the data;
  • the first threshold includes one of the following: N1 TTIs, N2 uplink TTIs, N3 downlink TTIs, and N4 symbols, and N1, N2, N3, and N4 are all positive integers.
  • determining, according to the first preset condition, that the sending manner of the PUSCH further includes:
  • the second threshold includes one of the following: M1 TTIs, M2 uplink TTIs, M3 downlink TTIs, M4 symbols, and M1, M2, M3, and M4 are positive integers.
  • the time window includes at least one of the following: K1 TTIs, K2 uplink TTIs, K3 downlink TTIs, and K4 symbols, where K1, K2, K3, and K4 are positive integers.
  • a method for indicating downlink control information DCI including:
  • determining the content of the sixth DCI according to the second preset condition includes: determining, when the uplink authorization is not sent to the terminal in the first time window, determining that the content of the sixth DCI includes: indicating that the terminal is And transmitting, by the TTI, the reference signal, where the uplink grant is used to indicate that the terminal sends a PUSCH, where the first time window is a time window before the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal is in the specified TTI Sending a reference signal on;
  • Determining the sixth DCI when at least one uplink grant is sent to the terminal in a first time window, and at least one uplink grant in the uplink grant indicates that the terminal sends a reference signal The content includes: instructing the terminal not to send a reference signal on the designated TTI.
  • determining the content of the sixth DCI according to the second preset condition includes:
  • determining the content of the sixth DCI includes: instructing the terminal to send a reference signal on the designated TTI, where the second time window is a time window before the TTI where the sixth DCI is located, where the uplink grant is used to indicate that the terminal sends the PUSCH;
  • determining the content of the sixth DCI includes: indicating that the terminal is on the designated TTI Sending a reference signal;
  • the content of the sixth DCI includes: indicating that the terminal is in the The specified TTI does not send a reference signal.
  • a device for transmitting a physical uplink shared channel including:
  • the first determining module is configured to determine, according to at least one of the following, a sending manner of the PUSCH: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • the first sending module is configured to send the PUSCH according to the determined sending manner.
  • the indication of the DCI includes:
  • First indication indicating that the reference signal is transmitted on the designated transmission time interval TTI;
  • a second indication indicating that the reference signal is not transmitted on the designated TTI
  • a third indication indicating that the PUSCH is transmitted on the designated TTI;
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • the first determining module is configured to: when the indication of the first DCI is the first indication, determining a manner of sending the PUSCH includes: transmitting a reference signal on the designated TTI.
  • the first determining module is configured to: when the indication of the first DCI is the second indication, determining the sending manner of the PUSCH includes: determining, according to the first preset condition, The transmission method of the PUSCH is described.
  • the first determining module is configured to: determine, according to the first preset condition, a sending manner of the PUSCH by: when a PUSCH is sent in a time window before the specified TTI, Determining the manner in which the PUSCH is sent includes: not transmitting a reference signal on the specified TTI; determining that the PUSCH is sent when the PUSCH is not sent in a time window before the designated TTI The reference signal is transmitted on the TTI or the reference signal and data are not transmitted on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH by: when a reference signal is sent within a time window before the designated TTI Determining the manner in which the PUSCH is sent includes: not transmitting a reference signal on the specified TTI; determining, when the reference signal is not sent in a time window before the designated TTI, The reference signal is transmitted on the designated TTI, or the reference signal and data are not transmitted on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH according to the following manner: when receiving in a time window before the TTI where the first DCI is located
  • determining that the PUSCH is sent includes: not transmitting the reference signal on the specified TTI; and not receiving the base station sending in a time window before the TTI where the first DCI is located
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI, or not transmitting a reference signal and data on the designated TTI.
  • the first determining module is configured to: determine, according to the first preset condition, a sending manner of the PUSCH.
  • the first determining module is configured to determine, according to the first preset condition, that the PUSCH is sent according to the following manner: when no PUSCH is sent within a time window before the designated TTI, Determining the manner in which the PUSCH is transmitted includes: transmitting a reference signal on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH by: when a PUSCH is sent in a time window before the specified TTI, Then:
  • the reference signal is not transmitted on, or the reference signal and data are not transmitted on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, a sending manner of the PUSCH by: sending a PUSCH in a time window before the designated TTI, :
  • Determining, by the specified TTI, that the indication bit in the first DCI is inverted with respect to the indication bit in the third DCI in a time window before the designated TTI The reference signal is not sent, or the reference signal and the data are not sent on the specified TTI, where the third DCI is within a time window before the specified TTI, and the PUSCH corresponding to the specified TTI is transmitted. DCI;
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH according to the following manner: when there is no time window before the TTI where the first DCI is located
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH according to the following manner: when a time window before the TTI where the first DCI is located is received When the uplink grant sent by the base station is reached, then:
  • the sending manner includes: not transmitting a reference signal on the specified TTI, where the fourth DCI is an uplink grant received in the time window that is closest to the TTI where the first DCI is located;
  • determining that the PUSCH is sent includes: The reference signal is not transmitted on the designated TTI, or the reference signal and data are not transmitted on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, how to send the PUSCH according to the following manner: when a time window before the TTI where the first DCI is located is received When the uplink grant sent by the base station is reached, then:
  • determining that the PUSCH is sent includes: Not transmitting a reference signal on the designated TTI, or transmitting a reference signal and data on the designated TTI, wherein the fifth DCI is the one closest to the first DCI received within the time window Upstream authorization of TTI;
  • determining that the PUSCH is sent includes: The reference signal is not transmitted on the designated TTI.
  • the first determining module is further configured to: determine, according to the first preset condition, a sending manner of the PUSCH by: when a specified DMRS time domain location is included on the designated TTI, determining The manner of transmitting the PUSCH includes: transmitting a reference signal at a candidate DMRS time domain location.
  • the first determining module is further configured to: determine, according to the first preset condition, a sending manner of the PUSCH according to the following manner: when a candidate DMRS time domain location is not included on the designated TTI, :
  • Determining, when the reference signal is sent in a time window before the designated TTI, the manner of transmitting the PUSCH includes: not transmitting a reference signal within the specified TTI; when in a time window before the designated TTI
  • determining the manner in which the PUSCH is sent includes: transmitting a reference signal in the specified TTI, or not transmitting a parameter in the specified TTI Test signals and data.
  • the first determining module is further configured to: determine, according to the first preset condition, a sending manner of the PUSCH by: when the specified TTI does not include a candidate DMRS time domain location, determining The transmitting manner of the PUSCH includes: not transmitting a reference signal in the specified TTI.
  • the first determining module is configured to: when the indication of the first DCI is a fourth indication, determine a sending manner of the PUSCH according to the first preset condition.
  • the first determining module is configured to determine, according to the first preset condition, a sending manner of the PUSCH by: when the specified symbol is before a symbol of the first sending data, :
  • determining that the PUSCH is sent includes: not transmitting a reference signal on the designated symbol, and transmitting data Transmitting a reference signal on at least one symbol; or not transmitting a reference signal on the designated symbol, and not transmitting data on a symbol of the transmitted data;
  • the first threshold includes one of the following: N1 TTIs, N2 uplink TTIs, N3 downlink TTIs, and N4 symbols, and N1, N2, N3, and N4 are all positive integers.
  • the first determining module is further configured to: determine, according to the first preset condition, a sending manner of the PUSCH by: when the specified symbol is before a symbol of the first sending data,
  • the second threshold includes one of the following: M1 TTIs, M2 uplink TTIs, M3 downlink TTIs, M4 symbols, and M1, M2, M3, and M4 are positive integers.
  • a device for indicating downlink control information DCI including:
  • a second determining module determining content of the sixth DCI according to the second preset condition, where the The sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • the second sending module is configured to send the determined sixth DCI to the terminal.
  • the second determining module is configured to determine content of the sixth DCI according to the second preset condition by:
  • determining the content of the sixth DCI includes: instructing the terminal to send a reference signal on the designated TTI, where the uplink authorization is used to indicate the Transmitting, by the terminal, a PUSCH, where the first time window is a time window before the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal is in the specified TTI Sending a reference signal on;
  • determining the content of the sixth DCI includes: indicating the The terminal does not transmit a reference signal on the designated TTI.
  • the second determining module is configured to determine content of the sixth DCI according to the second preset condition by:
  • determining the content of the sixth DCI includes: instructing the terminal to send a reference signal on the designated TTI, where the second time window is a time window before the TTI where the sixth DCI is located, where the uplink grant is used to indicate that the terminal sends the PUSCH;
  • determining the content of the sixth DCI includes: indicating that the terminal is on the designated TTI Sending a reference signal;
  • determining the content of the sixth DCI includes: indicating that the terminal is in the The specified TTI does not send a reference signal.
  • a terminal including: a first process a first memory configured to store instructions executable by the first processor; the first processor configured to perform the following operations according to the instructions stored in the first memory:
  • Determining a PUSCH transmission mode according to at least one of the following: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • the indication of the first DCI includes:
  • First indication indicating that the reference signal is transmitted on the designated transmission time interval TTI;
  • a second indication indicating that the reference signal is not transmitted on the designated TTI
  • a third indication indicating that the PUSCH is transmitted on the designated TTI;
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • a base station including: a second processor; a second memory configured to store an instruction executable by the second processor; the second processor is configured to Performing the following operations according to the instructions stored in the second memory:
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing the implementation of the PUSCH sending method in the foregoing embodiment.
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing the implementation of the DCI indication method in the foregoing embodiment.
  • the terminal determines the PUSCH transmission mode according to the at least one of the indication of the first downlink control information DCI and the first preset condition that is sent by the base station, and sends the PUSCH according to the determined transmission mode.
  • the uplink grant of the PUSCH sent by the base station may cause the eNB to be unable to demodulate.
  • the terminal may determine the transmission mode of the PUSCH according to the DCI or the preset condition, so that the base station can perform demodulation smoothly, thereby avoiding waste of resources.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal for transmitting a PUSCH according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for transmitting a PUSCH according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for indicating a DCI according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of a transmitting apparatus of a PUSCH according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a pointing device of a DCI according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a terminal according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram (1) of transmitting an uplink grant according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of transmission of an uplink grant according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of transmission of an uplink grant according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of transmission of an uplink grant according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram (5) of transmitting an uplink grant according to an embodiment of the present invention.
  • DMRS Demodulation Reference Signal
  • the terminal does not send the uplink authorization, or the base station misses the uplink authorization of a certain DMRS after the uplink authorization is sent by the base station.
  • the DMRS is transmitted on the PUSCH.
  • the terminal misses an uplink grant for transmitting the PUSCH it is determined by the next uplink grant of the transmitted PUSCH to determine whether to send the reference signal.
  • the TTI sends the uplink grant of the DMRS, and the next few TTIs do not send the DMRS, which causes the eNB to fail to demodulate and waste resources.
  • an embodiment of a method for transmitting a PUSCH is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and The logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in a different order than the ones described herein.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal to which a PUSCH transmission method according to an embodiment of the present invention is applied.
  • the mobile terminal 10 may include one or more (only one shown) processor 102 (the processor 102 may include a processing device such as a microprocessor MCU or a programmable logic device FPGA), configured to be stored.
  • a memory 104 of data and a transmission module 106 provided as a communication function.
  • the structure shown in FIG. 1 is merely illustrative, and does not limit the structure of the above mobile terminal.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 may be configured as a software program and a module for storing application software, such as program instructions or modules corresponding to the PUSCH transmission method in the embodiment of the present invention, and the processor 102 is configured to run the software program and the module stored in the memory 104. Thereby performing one or more functional applications and data processing, that is, implementing the vulnerability detection method of the above application.
  • the memory 104 may include a high speed random access memory, and may also include a non-volatile memory such as one or more magnetic storage devices. Set, flash, or other non-volatile solid state memory.
  • memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is arranged to receive or transmit data via a network.
  • the above-described network specific example may include a wireless network provided by a communication provider of the mobile terminal 10.
  • the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • FIG. 2 is a flowchart of a method for transmitting a PUSCH according to an embodiment of the present invention. As shown in FIG. 2, the method for transmitting a PUSCH in this embodiment includes the following steps:
  • Step S202 determining, according to at least one of the following, a PUSCH sending manner: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • Step S204 Send the PUSCH according to the determined transmission manner.
  • the terminal determines, according to the at least one of the indication of the first downlink control information DCI and the first preset condition that the base station sends the PUSCH, to send the PUSCH according to the determined sending manner, so that the terminal misses the base station.
  • the PUSCH transmission mode may be determined according to the DCI or the preset condition, so that the base station can perform demodulation smoothly, thereby avoiding waste of resources.
  • the indication of the first DCI includes at least one of the following:
  • a first indication indicating that the reference signal is sent on the designated TTI, where the reference signal bearer is sent on the PUSCH;
  • a second indication indicating that the reference signal is not sent on the designated TTI
  • a third indication indicating that the PUSCH is sent on the designated TTI
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • determining the transmission manner of the PUSCH includes: transmitting the reference signal on the designated TTI.
  • the indication of the first DCI is the second indication, that is, the reference signal is not sent on the designated TTI, and the manner of sending the PUSCH is determined according to the first preset condition.
  • determining the PUSCH transmission manner includes: sending the reference signal on the specified TTI. , or do not send reference signals and data on the specified TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining the PUSCH transmission manner includes: not transmitting the reference signal on the designated TTI; if the reference signal is not sent, determining the PUSCH transmission manner includes: sending on the designated TTI The reference signal or the reference signal and data are not transmitted on the specified TTI.
  • Determining the manner of sending the PUSCH according to the first preset condition further includes:
  • determining the manner of sending the PUSCH includes: not transmitting the reference signal on the specified TTI; if not receiving the uplink grant sent by the base station Determining the manner of transmitting the PUSCH includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the indication of the first DCI is the third indication, that is, the PUSCH is sent on the designated TTI, and the transmission mode of the PUSCH is determined according to the first preset condition.
  • determining the manner in which the PUSCH is transmitted includes: transmitting the reference signal on the designated TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • the method for determining the transmission of the PUSCH includes: transmitting the reference signal on the designated TTI, where the second DCI is in the time window before the designated TTI, and the PUSCH corresponding to the latest TTI is transmitted. DCI;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI, or The reference signal and the data are not transmitted on the specified TTI, where the third DCI is a DCI corresponding to the PUSCH of the latest TTI that is the latest TTI before the specified TTI;
  • determining the manner in which the PUSCH is transmitted includes: transmitting the reference signal on the designated TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining the manner in which the PUSCH is sent includes: transmitting the reference signal on the designated TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. a signal, wherein the fourth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • determining, according to the first preset condition, a manner of sending the PUSCH further includes:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. Signaling, or not transmitting the reference signal and data on the designated TTI, wherein the fifth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the manner in which the PUSCH is transmitted includes: not transmitting the reference signal on the designated TTI.
  • the indication of the first DCI is the fourth indication, that is, the reference signal is sent on the designated symbol, and the transmission manner of the PUSCH is determined according to the first preset condition.
  • determining the manner of transmitting the PUSCH includes: transmitting the reference signal on the designated symbol, and transmitting the reference signal on the at least one symbol of the transmitted data; Or do not send a reference signal on the specified symbol, and do not send data on the symbol of the transmitted data;
  • the first threshold includes one of the following: N1 TTIs, N2 uplink TTIs, N3 downlink TTIs, and N4 symbols, and N1, N2, N3, and N4 are all positive integers.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • the second threshold includes one of the following: M1 TTIs, M2 uplink TTIs, M3 downlink TTIs, M4 symbols, and M1, M2, M3, and M4 are positive integers.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining the PUSCH transmission manner includes: transmitting the reference signal in the candidate DMRS time domain location.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining the PUSCH transmission manner includes: not transmitting the reference signal in the specified TTI; if the reference signal is not sent, determining the PUSCH transmission manner includes: sending in the specified TTI The reference signal or the reference signal and data are not transmitted within the specified TTI.
  • determining, according to the first preset condition, that the manner of sending the PUSCH further includes:
  • determining the PUSCH transmission manner includes: not transmitting the reference signal in the specified TTI.
  • the time window involved in the embodiment of the present invention includes at least one of the following: K1 TTIs, K2 uplink TTIs, K3 downlink TTIs, and K4 symbols, where K1, K2, K3, and K4 are positive integers.
  • FIG. 3 is a flowchart of a method for indicating a DCI according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step S302 determining content of the sixth DCI according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • Step S304 transmitting the determined sixth DCI to the terminal.
  • the base station determines, according to the second preset condition, the content of the sixth DCI, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • the base station sends the determined sixth DCI to the terminal, so that if the terminal misses the uplink grant of the PUSCH sent by the base station, and may cause the eNB to fail to demodulate, the base station may determine the PUSCH transmission mode according to the DCI or the preset condition, so that the base station can Smooth demodulation, avoiding waste of resources.
  • step S302 can be implemented in the following manner:
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the specified TTI, where the uplink grant is used to instruct the terminal to send the PUSCH in the first time window, A time window is a time window before the specified TTI;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal on the designated TTI.
  • step S302 can also be implemented in the following manner:
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI, where the second time window is a time before the TTI where the sixth DCI is located. a window, the uplink grant is used to indicate that the terminal sends the PUSCH in the second time window;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal in the designated TTI.
  • multiple uplink grants or DCI indications may be received in a time window
  • the embodiment does not limit this.
  • portions of the present invention that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (eg, ROM/RAM, disk, optical disk). Including a number of instructions to make a terminal device (can be a mobile phone, computer, service) , or network device, etc.) A method of performing one or more embodiments of the present invention.
  • a storage medium eg, ROM/RAM, disk, optical disk.
  • This embodiment provides a PUSCH sending apparatus, which is applied to a terminal, and is used to implement the foregoing PUSCH sending method embodiment and an optional example, and has not been described again.
  • the term "module” can implement at least one of software and hardware for a predetermined function.
  • the devices described in the following embodiments are implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • FIG. 4 is a block diagram showing the structure of a PUSCH transmitting apparatus according to an embodiment of the present invention. As shown in Figure 4, the device comprises:
  • the first determining module 40 is configured to determine, according to at least one of the following, a sending manner of the PUSCH: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • the first sending module 42 is configured to send the PUSCH according to the determined sending manner.
  • the first determining module 40 determines the sending manner of the PUSCH according to at least one of the following: receiving an indication of the first downlink control information DCI sent by the base station, a first preset condition; and sending, by the first sending module 42 according to the determined sending
  • the mode transmits the PUSCH.
  • the terminal can determine the transmission mode of the PUSCH according to the DCI or the preset condition, and the base station can perform the demodulation smoothly, thereby avoiding waste of resources, if the terminal does not demodulate the uplink of the PUSCH.
  • the indication of the DCI includes at least one of the following:
  • a first indication indicating that the reference signal is transmitted on the designated TTI
  • a second indication indicating that the reference signal is not sent on the designated TTI
  • a third indication indicating that the PUSCH is sent on the designated TTI
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • the first determining module 40 is configured to: determine that the PUSCH transmission manner includes: transmitting the reference signal on the designated TTI.
  • the first determining module 40 is configured to: determine a transmission manner of the PUSCH according to the first preset condition.
  • the first determining module 40 is further configured to: within a time window before the TTI is specified, If the PUSCH is sent, determining the manner in which the PUSCH is sent includes: not transmitting the reference signal on the designated TTI; if the PUSCH is not sent, determining the manner of transmitting the PUSCH includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal on the designated TTI And data.
  • the first determining module 40 is configured to: in a time window before the TTI is specified, if the reference signal is sent, determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI; if not transmitting the reference signal Determining the manner of transmitting the PUSCH includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first determining module 40 is further configured to: in a time window before the TTI where the first DCI is located, if the uplink grant sent by the base station is received, determining that the PUSCH is sent includes: not sending the reference on the specified TTI. The signal is determined. If the uplink grant sent by the base station is not received, determining the manner in which the PUSCH is sent includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first determining module 40 is configured to: determine a PUSCH transmission manner according to the first preset condition.
  • the first determining module 40 is configured to: in a time window before the TTI is specified, if the PUSCH is not sent, determining the sending manner of the PUSCH includes: sending the reference signal on the designated TTI.
  • the first determining module 40 is further configured to: if a PUSCH is sent within a time window before the TTI is specified, perform the following operations:
  • determining a PUSCH transmission manner includes: transmitting a reference signal on the designated TTI, where The second DCI is a DCI corresponding to the PUSCH transmitted by the latest TTI within a time window before the designated TTI;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first determining module 40 is further configured to: if a PUSCH is sent within a time window before the TTI is specified, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI, or The reference signal and the data are not transmitted on the specified TTI, where the third DCI is a DCI corresponding to the PUSCH of the latest TTI that is the latest TTI before the specified TTI;
  • determining the manner in which the PUSCH is transmitted includes: transmitting the reference signal on the designated TTI.
  • the first determining module 40 is further configured to: in a time window before the TTI where the first DCI is located, if the uplink grant sent by the base station is not received, determining the manner in which the PUSCH is sent includes: sending the reference on the specified TTI. signal.
  • the first determining module 40 is further configured to: if a uplink authorization sent by the base station is received in a time window before the TTI where the first DCI is located, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. a signal, wherein the fourth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first determining module 40 is further configured to: if a uplink authorization sent by the base station is received in a time window before the TTI where the first DCI is located, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. Signaling, or not transmitting the reference signal and data on the designated TTI, wherein the fifth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the manner in which the PUSCH is transmitted includes: not transmitting the reference signal on the designated TTI.
  • the first determining module 40 is configured to: determine a transmission manner of the PUSCH according to the first preset condition.
  • the first determining module 40 is configured to: when the specified symbol is preceded by the symbol of the first transmitted data, perform the following operations:
  • determining a transmission manner of the PUSCH includes: not transmitting the reference signal on the designated symbol, and transmitting the reference on the at least one symbol of the transmission data. Signal; or does not send a reference signal on the specified symbol, does not send data on the symbol of the transmitted data;
  • the first threshold includes one of the following: N1 TTIs, N2 uplink TTIs, N3 downlink TTIs, and N4 symbols, and N1, N2, N3, and N4 are all positive integers.
  • the first determining module 40 is further configured to: when the specified symbol is before the symbol of the first transmitted data, perform the following operations:
  • the second threshold includes one of the following: M1 TTIs, M2 uplink TTIs, M3 downlink TTIs, M4 symbols, and M1, M2, M3, and M4 are positive integers.
  • the first determining module 40 is further configured to: if the specified DMRS time domain location is included in the TTI, determining the PUSCH transmission manner includes: transmitting the reference signal in the candidate DMRS time domain location.
  • the first determining module 40 is further configured to: if the specified DMRS time domain location is not included in the TTI, perform the following operations:
  • determining the PUSCH transmission manner includes: not transmitting the reference signal in the specified TTI; if the reference signal is not sent, determining the PUSCH transmission manner includes: sending in the specified TTI The reference signal or the reference signal and data are not transmitted within the specified TTI.
  • the PUSCH is determined.
  • the sending manner includes: not transmitting the reference signal in the specified TTI.
  • a DCI indication device is also provided in the embodiment, which is applied to a base station, and the device is used to implement the foregoing DCI indication method embodiment and an optional example, and has been described. No longer repeat them.
  • the term "module" can implement at least one of software and hardware for a predetermined function.
  • FIG. 5 is a structural block diagram of a pointing device of a DCI according to an embodiment of the present invention. As shown in Figure 5, the device includes:
  • the second determining module 50 determines the content of the sixth DCI according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • the second sending module 52 is configured to send the determined sixth DCI to the terminal.
  • the second determining module 50 determines the content of the sixth DCI according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner, and the second sending module 52 sends the determining.
  • the sixth DCI to the terminal.
  • the terminal can determine the transmission mode of the PUSCH according to the DCI or the preset condition, and the base station can perform the demodulation smoothly, thereby avoiding waste of resources, if the terminal does not demodulate the uplink of the PUSCH.
  • the second determining module 50 is configured to:
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI, where the uplink grant is used to instruct the terminal to send the PUSCH in the first time window, where the first time window is the designated TTI. a previous time window;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal on the designated TTI.
  • the second determining module 50 is configured to:
  • the content package of the sixth DCI is determined. Instructing the terminal to transmit the reference signal on the specified TTI, where the second time window is a time window before the TTI where the sixth DCI is located, and the uplink grant is used to indicate that the terminal sends the PUSCH in the second time window;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal in the designated TTI.
  • multiple uplink grants or DCI indications may be received in a time window
  • the embodiment does not limit this.
  • FIG. 6 is a structural block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 6, the terminal includes:
  • a first processor 60 configured to store instructions executable by the first processor 60
  • the first processor 60 is arranged to perform the following operations in accordance with instructions stored in the first memory 62:
  • Determining a PUSCH transmission mode according to at least one of the following: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • the PUSCH is transmitted according to the determined transmission manner.
  • the first processor 60 is configured to determine, according to at least one of the following, a PUSCH sending manner: receiving an indication of the first downlink control information DCI sent by the base station, a first preset condition, and transmitting the PUSCH according to the determined sending manner. .
  • the terminal can determine the transmission mode of the PUSCH according to the DCI or the preset condition, and the base station can perform the demodulation smoothly, thereby avoiding waste of resources, if the terminal does not demodulate the uplink of the PUSCH.
  • the indication of the first DCI includes at least one of the following:
  • a first indication indicating that the reference signal is transmitted on the designated transmission time interval TTI;
  • a second indication indicating that the reference signal is not sent on the designated TTI
  • a third indication indicating that the PUSCH is sent on the designated TTI
  • Fourth indication Indicates that the reference signal is sent on the specified symbol.
  • the first processor 60 is configured to: determine the transmission manner of the PUSCH, including: transmitting the reference signal on the designated TTI.
  • the first processor 60 is configured to: determine a transmission manner of the PUSCH according to the first preset condition.
  • the first processor 60 is further configured to: in a time window before the TTI is specified, if the PUSCH is sent, determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI; if not transmitting the PUSCH, determining The PUSCH transmission manner includes: transmitting a reference signal on a designated TTI, or not transmitting a reference signal and data on a designated TTI.
  • the first processor 60 is further configured to: in a time window before the TTI is specified, if the reference signal is sent, determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI; if the reference signal is not sent. Determining the manner of transmitting the PUSCH includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first processor 60 is further configured to: in a time window before the TTI where the first DCI is located, if the uplink grant sent by the base station is received, determining that the PUSCH is sent includes: not sending the reference on the specified TTI. The signal is determined. If the uplink grant sent by the base station is not received, determining the manner in which the PUSCH is sent includes: transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first processor 60 is configured to determine the transmission manner of the PUSCH according to the first preset condition.
  • the first processor 60 is further configured to: in a time window before the TTI is specified, if the PUSCH is not sent, determining the manner in which the PUSCH is sent includes: transmitting the reference signal on the designated TTI.
  • the first processor 60 is further configured to: if a PUSCH is sent within a time window before the TTI is specified, perform the following operations:
  • determining a PUSCH transmission manner includes: transmitting a reference signal on the designated TTI, where The second DCI is a DCI corresponding to the PUSCH transmitted by the latest TTI within a time window before the designated TTI;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first processor 60 is further configured to: if a PUSCH is sent within a time window before the TTI is specified, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference signal on the designated TTI, or The reference signal and the data are not transmitted on the specified TTI, where the third DCI is a DCI corresponding to the PUSCH of the latest TTI that is the latest TTI before the specified TTI;
  • determining the manner in which the PUSCH is transmitted includes: transmitting the reference signal on the designated TTI.
  • the first processor 60 is further configured to: in a time window before the TTI where the first DCI is located, if the uplink grant sent by the base station is not received, determining how to send the PUSCH includes: sending the reference on the specified TTI. signal.
  • the first processor 60 is further configured to: if a uplink authorization sent by the base station is received, in a time window before the TTI where the first DCI is located, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. a signal, wherein the fourth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the transmission manner of the PUSCH includes: not transmitting the reference signal on the designated TTI, or not transmitting the reference signal and the data on the designated TTI.
  • the first processor 60 is further configured to: if a uplink authorization sent by the base station is received, in a time window before the TTI where the first DCI is located, perform the following operations:
  • determining that the PUSCH is sent includes: not transmitting the reference on the specified TTI. Signaling, or not transmitting the reference signal and data on the designated TTI, wherein the fifth DCI is an uplink grant received within the time window that is closest to the TTI where the first DCI is located;
  • determining the manner in which the PUSCH is transmitted includes: not transmitting the reference signal on the designated TTI.
  • the first processor 60 is further configured to: determine a transmission manner of the PUSCH according to the first preset condition.
  • the first processor 60 is further configured to: when the specified symbol is before the symbol of the first transmitted data, perform the following operations:
  • determining a transmission manner of the PUSCH includes: not transmitting the reference signal on the designated symbol, and transmitting the reference on the at least one symbol of the transmission data. Signal; or does not send a reference signal on the specified symbol, does not send data on the symbol of the transmitted data;
  • the first threshold includes one of the following: N1 TTIs, N2 uplink TTIs, N3 downlink TTIs, and N4 symbols, and N1, N2, N3, and N4 are all positive integers.
  • the first processor 60 is further configured to: when the specified symbol is before the symbol of the first transmitted data, perform the following operations:
  • the second threshold includes one of the following: M1 TTIs, M2 uplink TTIs, M3 downlink TTIs, M4 symbols, and M1, M2, M3, and M4 are positive integers.
  • the first processor 60 is further configured to: if the candidate DMRS is included in the TTI The domain location, determining the manner in which the PUSCH is transmitted includes: transmitting a reference signal at a candidate DMRS time domain location.
  • the first processor 60 is further configured to: if the specified DMRS time domain location is not included in the TTI, perform the following operations:
  • determining the PUSCH transmission manner includes: not transmitting the reference signal in the specified TTI; if the reference signal is not sent, determining the PUSCH transmission manner includes: sending in the specified TTI The reference signal or the reference signal and data are not transmitted within the specified TTI.
  • determining the PUSCH transmission manner includes: not transmitting the reference signal in the specified TTI.
  • FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 7, the base station includes:
  • a second memory 72 configured to store an instruction executable by the second processor 70
  • the second processor 70 is arranged to perform the following operations according to the instructions stored in the second memory 72:
  • the content of the sixth DCI is determined according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • the second processor 70 determines the content of the sixth DCI according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner; and the determined sixth DCI is sent to terminal.
  • the terminal can determine the transmission mode of the PUSCH according to the DCI or the preset condition, and the base station can perform the demodulation smoothly, thereby avoiding waste of resources, if the terminal does not demodulate the uplink of the PUSCH.
  • the second processor 70 is further configured to:
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI, where the uplink authorization is used to indicate that the terminal is Transmitting the PUSCH in the first time window, where the first time window is a time window before the designated TTI;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal on the designated TTI.
  • the second processor 70 is further configured to:
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI, where the second time window is a time window before the TTI where the sixth DCI is located, The uplink grant is used to instruct the terminal to send the PUSCH in the second time window;
  • determining the content of the sixth DCI includes: instructing the terminal to send the reference signal on the designated TTI;
  • determining the content of the sixth DCI includes: indicating that the terminal does not send the reference signal in the designated TTI.
  • multiple uplink grants or DCI indications may be received in a time window
  • the embodiment does not limit this.
  • This embodiment provides a DMRS transmission method, which avoids the problem that if the terminal misses the uplink grant indicating that the DMRS is sent, the next few TTIs will not send the DMRS, which may result in the eNB being unable to demodulate and waste resources.
  • This embodiment is described by taking the short TTI system as an example. It should be noted that the method provided in this embodiment is not limited to the short TTI system.
  • the base station sends a DCI to the user equipment or the user equipment (User Equipment, UE for short) to indicate whether the UE sends the DMRS.
  • the base station here may be an NB, an eNB, or the like.
  • the instructions here can be included by including an indication in the DCI
  • the bit bit indicates that "1" represents the transmission of the DMRS, and "0" represents the transmission of the DMRS. It may also be indicated by other means, for example, including a domain in the DCI, which is used to indicate whether to send DMRS and other information, and other information herein may be location relationship information of the DMRS and the data.
  • a partial state in the domain indicates that no DMRS is transmitted, and a partial state indicates that a DMRS is transmitted.
  • the manner of the indication is not limited in the embodiment of the present invention, and the methods in this embodiment are applicable.
  • n is a positive integer. If the DCI indicates that the UE sends the DMRS in the TTI#n, the UE needs to send the DMRS on the TTI#n; if the DCI indicates In TTI#n not sending DMRS, the UE needs to make the following judgment:
  • the UE transmits the DMRS on TTI #n.
  • FIG. 8 is a schematic diagram (1) of transmitting an uplink grant according to an embodiment of the present invention.
  • one subframe is divided into 7 TTIs, each TTI contains 2 symbols, and one time window includes 2 TTIs.
  • the eNB continuously schedules 3 PUSCHs, where the uplink grant 1 indicates that the DMRS is transmitted, and the uplink grants 2 and 3 indicate that the DMRS is not transmitted.
  • the uplink grant indication does not send DMRS in TTI#6.
  • the window contains 2 TTIs, which are TTI#4 and TTI#5 respectively.
  • the UE finds that the eNB does not send the DMRS.
  • TTI#4 and TTI#5 send two PUSCHs, indicating that the UE does not miss the uplink grant sent by the base station, and then the UE is in the TTI. #6 will not send DMRS.
  • FIG. 9 is a schematic diagram (2) of transmitting an uplink grant according to an embodiment of the present invention.
  • the UE when the uplink grant 1 is missed, the UE only receives the uplink grants 2 and 3.
  • the uplink grant indication sends the DMRS on the TTI #5, and the corresponding time window includes TTI#3 and TTI#4, and the UE finds If the PUSCH is not transmitted within the time window, the UE will send the DMRS on TTI #5. In this way, the situation in which the DMRS is not transmitted due to the missed detection of the uplink grant 1 is avoided.
  • the UE when the indication of the eNB is that the UE sends the DMRS in the TTI #n, it knows that the UE will send the DMRS; if it indicates that the DMRS is not sent, if the UE is found not to send the PUSCH in the previous time window of the TTI#n, then The UE is considered to send the DMRS on the TTI#n. If the UE is found to have sent the PUSCH in the previous time window of the TTI#n, the UE is considered to be in the TTI#n. No DMRS was sent and only data was sent.
  • the UE when the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, if the DCI indicates that the UE sends the DMRS in the TTI#n, the UE needs to send the DMRS on the TTI#n; if the DCI indicates that the TTI#n is not When sending DMRS, the UE needs to make the following judgments:
  • the UE In a time window before TTI#n, if no PUSCH (or DMRS) is transmitted, the UE abandons sending any signal on TTI#n.
  • the UE when the uplink grant 1 is missed, the UE only receives the uplink grants 2 and 3.
  • the time window corresponding to the TTI #5 includes TTI #3 and TTI #4, and the UE finds that the PUSCH is not sent in the time window. Then the UE will give up sending DMRS and data on TTI#5. Similarly, the UE will also abandon sending DMRS and data on TTI #6. In this way, the UE can be prevented from transmitting unnecessary signals, because without the DMRS, the UE cannot transmit the eNB and cannot demodulate.
  • the eNB side when the eNB indicates that the UE sends the DMRS in the TTI #n, it knows that the UE will send the DMRS; if it indicates that the DMRS is not sent, if the UE is found not to transmit the PUSCH in the time window, the UE is considered to be on the TTI#n. The DMRS and the data are not transmitted. If the UE is found to have transmitted the PUSCH in the time window, it is considered that the UE does not send the DMRS in TTI#n, and only the data is transmitted.
  • the size of the time window may be configured by the eNB, or may be preset.
  • this embodiment is notified by means of in-band signaling (Signaling In Band, SIB for short) or radio resource control protocol (Radio Resource Control, RRC for short) or Downlink Control Information (DCI).
  • SIB Signaling In Band
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the size of the time window in the embodiment of the present invention may be in units of TTI, or may be in units of symbols, such as 2 TTIs, or 5 symbols.
  • the location of sending the DMRS may be preset, or may be notified by the eNB, such as being preset as the first symbol in the scheduled TTI.
  • the method in the embodiment of the present invention can be used for the TTI to be a divided scene, as shown in FIG.
  • the subframe is divided into 7 TTIs, and the size of each TTI may be the same or different.
  • some TTIs include 2 symbols, and some TTIs include 3 symbols, which is not limited in this embodiment.
  • the method in this embodiment can also be used in a scenario where the TTI is a flexible scheduling. The description herein applies to all embodiments of the invention.
  • the UE When the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, if the DCI indicates that the UE sends the DMRS, the UE needs to send the DMRS on the TTI#n; if the DCI indicates that the DMRS is not sent, the UE needs to make the following judgment:
  • the UE In a time window before the TTI where the DCI is located, if an uplink grant is received, the UE does not send the DMRS on the TTI#n;
  • the UE In a time window before the TTI in which the DCI is located, if no uplink grant is received, the UE transmits the DMRS on TTI #n.
  • the UE When the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, if the DCI indicates that the UE sends the DMRS, the UE needs to send the DMRS on the TTI#n; if the DCI indicates that the DMRS is not sent, the UE needs to make the following judgment:
  • the UE In a time window before the TTI where the DCI is located, if an uplink grant is received, the UE does not send the DMRS on the TTI#n, and only sends data;
  • the UE In a time window before the TTI in which the DCI is located, if no uplink grant is received, the UE does not transmit DMRS and data on TTI #n.
  • the above-mentioned downlink TTI division is the same.
  • the uplink and downlink are both TTIs of 2 symbols, and the method in the present invention can also be used for different cases of uplink and downlink TTI division, such as TTI with 7 symbols on the upper line. Under the behavior of 2 symbols of TTI.
  • the UE When the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, if the DCI indicates that the UE sends the DMRS, the UE needs to send the DMRS on the TTI#n; if the DCI indicates that the DMRS is not sent, the UE needs to make the following judgment:
  • the UE In the time window before the TTI where the DCI is located, if an uplink authorization is received, and At least one uplink grant indication in the row grant indicates that the DMRS is sent, then the UE does not send the DMRS on the TTI#n, and only sends data;
  • the UE In a time window before the TTI where the DCI is located, if no uplink grant is received, or an uplink grant is received, and all uplink grants indicate that the DMRS is not sent, the UE sends the DMRS on the TTI#n, or does not send the DMRS. And data.
  • the above-mentioned downlink TTI division is the same.
  • the uplink and downlink are both TTIs of 2 symbols, and the method in the embodiment of the present invention can also be used for different cases of uplink and downlink TTI division, for example, the upper 7 symbols.
  • the TTI under the behavior of 2 symbols of TTI.
  • This embodiment provides a DMRS transmission method, which avoids the problem that if the terminal misses the uplink grant indicating that the DMRS is sent, the next few TTIs will not send the DMRS, which may result in the eNB being unable to demodulate and waste resources.
  • This embodiment is described by taking a short TTI system as an example. It should be noted that the method given in this embodiment is not limited to the short TTI technology.
  • the DCI includes an indication bit bit, and indicates whether to transmit the DMRS by indicating whether the bit is inverted. For example, when the DMRS needs to be sent, the inversion occurs, and it does not need to be sent when the DMRS is sent. Or, when it is necessary to transmit DMRS, it does not need to be inverted when transmitting DMRS.
  • the following is an example in which the inversion occurs when the DMRS needs to be transmitted, and the DMRS does not need to be transmitted as an example.
  • the UE when the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, in a time window before the TTI #n, if the PUSCH is not sent, the DMRS is sent on the TTI #n; at TTI#n In the previous time window, if the PUSCH is sent, the UE needs to make the following judgment:
  • TTI#n-k TTI#n-k
  • k a positive integer smaller than n. If the indication bit in the DCI corresponding to the TTI#n is not inverted compared to the indication bit in the DCI corresponding to the TTI#n-k, the DMRS is not transmitted on the TTI#n;
  • the DMRS is transmitted on TTI#n.
  • the time window contains 2 TTIs.
  • the eNB continuously schedules 3 PUSCHs, assuming that the indication bits in both uplink grants are all 1.
  • the UE only receives the uplink grant 2 and the uplink grant 3, then the UE determines whether the PUSCH is sent in the window of the figure, and if the UE does not send, the UE sends the DMRS on the TTI #5.
  • the eNB originally indicates that the DMRS is not transmitted, but now the DMRS is transmitted, and the number of symbols for data transmission is small.
  • TBS Transport Block Set
  • the N PRB is the number of allocated physical resource blocks (PRBs)
  • the N PRB is the number of symbols included in the scheduled TTI
  • the N DMRS is the number of symbols of the transmitted DMRS
  • the n PRB is the PRB corresponding to the TBS. Number. Or, you can have This method is also applicable to other embodiments of the invention.
  • the UE when the UE receives the DCI that the scheduling UE sends the PUSCH on the TTI #n, in a time window before the TTI #n, if the PUSCH is not sent, the DMRS is sent on the TTI #n; at TTI#n In the previous time window, if the PUSCH is sent, the UE needs to make the following judgment:
  • TTI#nk TTI#nk
  • indication bit in the DCI corresponding to TTI#n is not inverted compared to the indication bit in the DCI corresponding to TTI#nk, Then, DMRS is not sent on TTI#n, and only data is sent;
  • the size of the time window is configured by the eNB or is preset. For example, notified by SIB or RRC or DCI.
  • the size of the time window can be in units of TTI or in units of symbols, such as 2 TTIs, or 5 symbols.
  • the location of sending the DMRS may be preset or may be notified by the eNB.
  • the UE will transmit the DMRS.
  • the UE will send the DMRS in the TTI. If the PUSCH is scheduled in the window, the UE will determine the UE according to the uplink grant corresponding to the last received PUSCH in the window and the indication bit in the uplink grant corresponding to the TTI. Whether the DMRS was sent in TTI#n.
  • the UE When the UE receives the DCI for scheduling the UE to transmit the PUSCH on the TTI#n, if the uplink scheduling is not received in the time window before the TTI where the DCI is located, the UE needs to send the DMRS on the TTI#n; if the DCI is located before the TTI The uplink scheduling is received in the time window, and the UE needs to make the following judgment:
  • the DMRS is not transmitted in the TTI#n;
  • the DMRS is transmitted in TTI#n.
  • the UE When the UE receives the DCI for scheduling the UE to transmit the PUSCH on the TTI#n, if the uplink scheduling is not received in the time window before the TTI where the DCI is located, the UE needs to send the DMRS on the TTI#n; if the DCI is located before the TTI The uplink scheduling is received in the time window, and the UE needs to make the following judgment:
  • the DMRS is not sent in TTI#n;
  • the DMRS and the data are not transmitted on the TTI #n.
  • This embodiment further provides a DMRS transmission method, which avoids that if the terminal misses the uplink grant indicating that the DMRS is sent, the next few TTIs will not send the DMRS, and the eNB cannot demodulate and waste resources. .
  • This embodiment uses the short TTI system as an example to illustrate that the method provided in this embodiment is not limited to the short TTI technology.
  • the UE can still know after receiving the DMRS.
  • the location of the DMRS is relatively short, which may exceed the actual processing capability of the UE.
  • the UE when the UE receives the uplink grant, and the time difference (time interval) between the DMRS and the data indicated in the uplink grant exceeds a threshold, the UE sends the DMRS on one symbol in the data symbol, and the DMRS indicated by the eNB DMRS and data are not sent in the location.
  • the symbol for sending the DMRS can be preset, such as the first data symbol.
  • the time interval may be defined as the time difference between the cutoff position of the transmitting DMRS and the start position of the transmitted data, or may be defined as the time difference between the start position of the transmitted DMRS and the start position of the transmitted data, or may be defined as a transmission.
  • the time difference between the cutoff position of the DMRS and the cutoff position of the transmitted data may be defined as a transmission.
  • the UE when the UE receives the uplink grant, and the time difference between the DMRS and the uplink grant indicated in the uplink grant is less than a threshold, the UE sends the DMRS on one symbol in the data symbol, where the DMRS position indicated by the eNB is not Send DMRS and data.
  • the symbol for sending the DMRS can be preset, such as the first data symbol.
  • the time interval may be defined as the time difference between the cutoff position of the DMRS and the start position of the TTI where the uplink grant is located, or may be defined as the time difference between the start position of the DMRS and the start position of the TTI where the uplink grant is located. It can be defined as the time difference between the cutoff position of the DMRS and the cutoff position of the TTI where the uplink grant is located.
  • the UE For the eNB side, if it is found that the UE does not send the DMRS at the indicated DMRS location, it is determined that the UE will send the DMRS on the data symbol.
  • the UE when the UE receives the uplink grant, and the time difference between the DMRS and the data indicated in the uplink grant exceeds a threshold, the UE will abandon the transmission.
  • the UE when the UE receives the uplink grant, and the time difference between the DMRS indicated in the uplink grant and the uplink grant is less than a threshold, the UE will abandon the current transmission.
  • the threshold is preset or notified by the eNB, such as RRC or SIB signaling.
  • the threshold may be in units of TTI or in units of symbols.
  • FIG. 10 is a schematic diagram (3) of transmitting an uplink grant according to an embodiment of the present invention. Assumed threshold It is 4 TTIs. As shown in FIG. 10, the uplink grant scheduling UE on TTI #0 transmits a PUSCH, and instructs the DMRS to transmit on TTI #2, and the data is transmitted on TTI #6. The time interval between the TTI for transmitting the DMRS and the TTI for transmitting the uplink grant is 2 TTIs. Then, the UE does not send the DMRS at the corresponding DMRS position on the indicated TTI#2, but the first symbol on the TTI#6. The DMRS is sent on, or the UE abandons the transmission, that is, no signal is sent at the location of the DMRS and the data.
  • threshold It is 4 TTIs.
  • the uplink grant scheduling UE on TTI #0 transmits a PUSCH, and instructs the DMRS to transmit on TTI #2, and the data is transmitted on TTI #6.
  • This embodiment further provides a DMRS transmission method, which avoids that if the terminal misses the uplink grant indicating that the DMRS is sent, the next few TTIs will not send the DMRS, and the eNB cannot demodulate and waste resources. .
  • This embodiment is illustrated by the short TTI system, and the method given in this embodiment is not limited to the short TTI technique.
  • the candidate time domain location for transmitting the DMRS is preset or notified by the eNB through RRC signaling or SIB signaling, such as 0, 4, and 8 in one symbol. Or, starting from the radio frame #0, the position of the candidate DMRS is uniform, such as a density of 1/4. That is, there is one DMRS every 4 symbols, and the density is preset or indicated by the eNB.
  • the eNB schedules the UE to transmit one of the candidate DMRS locations in the TTI for transmitting the PUSCH, the DMRS is transmitted at the candidate location.
  • the UE observes whether the DMRS is sent in a time window, and if not, sends the DMRS; if it is sent, does not send the DMRS.
  • the UE does not send the DMRS.
  • FIG. 11 is a schematic diagram (4) of transmitting an uplink grant according to an embodiment of the present invention.
  • the uplink grant 1 scheduling UE is transmitted on TTI #2, and the uplink grant 2 scheduling UE is transmitted on TTI #6.
  • the UE only sends data on TTI#6, or observes in a time window before TTI#6 whether DMRS is sent in the time window, for example, time window For 2 TTIs, ie TTI #4 and 5, the DMRS is not transmitted within the time window, then the UE will send the DMRS on TTI #6, for example, send the DMRS on the first symbol of TTI #6.
  • the size of the time window is configured by the eNB or is preset. For example, notified by SIB or RRC or DCI.
  • the size of the time window can be in units of TTI or in units of symbols. For example, 2 TTIs, or 5 symbols.
  • the location of sending the DMRS may be preset or notified by the eNB.
  • This embodiment also provides a method for an eNB to instruct to send a DMRS.
  • This embodiment is illustrated by the short TTI system, and the method given in this embodiment is not limited to the short TTI technique.
  • the eNB transmits a DCI, and the DCI schedules the UE to transmit the PUSCH in the designated TTI. If the eNB does not send an uplink grant that schedules the UE to transmit the PUSCH within a specified time window, or the eNB sends an uplink grant that schedules the UE to transmit the PUSCH within a specified time window and the uplink grant indicates that the UE does not send the DMRS, Then the eNB instructs the UE to send the DMRS in the DCI.
  • the eNB If the eNB sends an uplink grant that schedules the UE to transmit the PUSCH within a specified time window and the uplink grant indicates that the UE sends the DMRS, the eNB indicates in the DCI that the UE does not send the DMRS.
  • the specified time window is a time window before the specified TTI.
  • FIG. 12 is a schematic diagram (5) of transmitting an uplink grant according to an embodiment of the present invention.
  • each block represents one TTI.
  • the eNB transmits DCI on TTIs #2, 3, and 5, and the UE is scheduled to transmit PUSCH on TTI #6, 7, and 9.
  • the window includes two TTIs, namely TTI #4 and 5. Since the PUSCH of the UE is not scheduled on TTI #4 and 5, the eNB will instruct the UE to transmit the DMRS on TTI #6.
  • TTI #7 the window includes two TTIs, namely TTI #5 and 6.
  • the eNB Since the TTI #6 indicates that the UE transmits the DMRS, the eNB indicates on the TTI #7 that the UE does not transmit the DMRS. For TTI#9, the window includes two TTIs, namely TTI#7 and 8. Only TTI#7 schedules the PUSCH and indicates that the UE does not send the DMRS, then the eNB will instruct the UE to send the DMRS on TTI#9.
  • the eNB sends a DCI to the UE, and the scheduling UE sends the PUSCH in the specified TTI, and specifies the DCI.
  • the eNB instructs the UE to send the DMRS in the specified TTI.
  • the eNB indicates to the UE in the DCI that the DMRS is not transmitted.
  • the window is assumed to be 2 TTIs.
  • the corresponding time window is TTI#0 and 1.
  • the eNB does not send the uplink grant to the UE, then the eNB will instruct the UE to send the DMRS on TTI#2.
  • the corresponding time window is TTI#1 and 2.
  • the eNB sends an uplink grant to the UE, and the UE is instructed to send the DMRS, then the eNB will indicate to the UE on TTI#3.
  • Send DMRS For TTI #5, the corresponding time window is TTI #3 and 4.
  • the eNB sends an uplink grant to the UE, and the UE is instructed not to send the DMRS, then the eNB will indicate to the UE on TTI #5.
  • Send DMRS Send DMRS.
  • the eNB may indicate whether to send the DMRS by using 1 bit.
  • whether or not to transmit the DMRS may be indicated by whether the bit indicates that the bit is inverted.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be used to save the program code executed by the PUSCH sending method provided by the foregoing embodiment.
  • the foregoing storage medium may be located in any one of the mobile terminal groups in the computer network, or in any one of the mobile terminal groups.
  • the storage medium is arranged to store program code for performing the following steps:
  • S1 Determine, according to at least one of the following, a manner of sending the PUSCH: receiving an indication of the first downlink control information DCI sent by the base station, and a first preset condition;
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be used to save the program code executed by the indication method of the DCI provided by the foregoing embodiment.
  • the storage medium is arranged to store program code for performing the following steps:
  • the content of the sixth DCI is determined according to the second preset condition, where the sixth DCI is used to instruct the terminal to send the physical uplink shared channel PUSCH according to the specified sending manner;
  • the disclosed technical contents may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media, i.e., non-transitory storage media) and communication media (or transitory media).
  • computer storage media or non-transitory media, i.e., non-transitory storage media
  • communication media or transitory media
  • computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules, or other data. , removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media.
  • the foregoing embodiment may enable the terminal to determine the PUSCH transmission mode according to the DCI or the preset condition, so that the base station can smoothly perform demodulation, thereby avoiding Waste of resources.

Abstract

一种PUSCH的发送方法及装置、DCI的指示方法及装置、终端、基站,其中PUSCH的发送方法包括:根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件(S202);根据确定的所述发送方式发送所述PUSCH(S204)。

Description

PUSCH的发送方法及装置、DCI的指示方法及装置 技术领域
本文涉及通信领域,具体而言,涉及一种物理上行共享信道(Physical Uplink Shared Channel,简称为PUSCH)的发送方法及装置、下行控制信息(Downlink Control Information,简称为DCI)的指示方法及装置。
背景技术
移动互联网和物联网的快速发展引发了数据流量的爆发式增长和多样化、差异化业务的广泛兴起。5G作为新一代的移动通信技术,相对4G将支持更高速率(Gbps)、巨量链接(1M/Km2)、超低时延(1ms)、更高的可靠性、百倍的能量效率提升等以支撑新的需求变化。其中,超低时延作为5G技术的关键指标,直接影响着如车联网、工业自动化、远程控制、智能电网等时延受限业务的发展。当前一系列关于5G时延降低的标准研究正在逐步推进。
传输时间间隔(Transmission Time Interval,简称为TTI)降低作为当前时延降低的重要研究方向,旨在将现在1ms长度的TTI降低为0.5ms甚至1-2个正交频分复用(Orthogonal Frequency Division Multiplex,简称为OFDM)符号的长度,成倍的降低了最小调度时间,进而在不改变帧结构情况下也能成倍的降低单次传输时延。第三代合作伙伴计划(3rd Generation Partnership,简称为3GPP)也已立项讨论TTI(short TTI)时延降低技术。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种PUSCH的发送方法及装置、DCI的指示方法及装置。
本发明实施例提供了一种物理上行共享信道PUSCH的发送方法,包括:
根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
根据确定的所述发送方式发送所述PUSCH。
可选地,所述第一DCI的指示包括:
第一种指示:指示在指定TTI上发送参考信号;或
第二种指示:指示在指定TTI上不发送参考信号;或
第三种指示:指示在指定TTI上发送PUSCH;或
第四种指示:指示在指定符号上发送参考信号。
可选地,当所述第一DCI的指示为所述第一种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,当所述第一DCI的指示为第二种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所述PUSCH的发送方式。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式包括:
当在所述指定TTI之前的一个时间窗内发送了PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的 上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的上行授权,且所述上行授权中至少有一个上行授权包含第一种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权,或者,接收到基站发送的至少一个上行授权且所述上行授权中的所有上行授权都包含第二种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,当所述第一DCI的指示为第三种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所述PUSCH的发送方式。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式包括:
在所述指定TTI之前的一个时间窗内,若没有发送PUSCH,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,其中,所述第二DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第三DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述第一DCI所在的TTI之前的一个时间窗内没有收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,其中,所述第四DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的 指示比特相对于第五DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第五DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当所述指定TTI上包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在候选的所述DMRS时域位置上发送参考信号。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当所述指定TTI上不包含候选的DMRS时域位置时,则:
当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内发送参考信号,或在所述指定TTI内不发送参考信号和数据。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当所述指定TTI上不包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号。
可选地,候选的所述DMRS时域位置通过以下至少之一的方式指定:预定义设置、基站配置。
可选地,当所述第一DCI的指示为第四种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所述PUSCH的发送方式。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式包括:
当所述指定符号在第一个发送数据的符号之前时,则:
当所述指定符号与所述第一个发送数据的符号之间的时间间隔超过第 一阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号,在发送数据的符号上不发送数据;
其中,所述第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
可选地,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
当所述第一DCI所在的TTI与所述指定符号之间的时间间隔小于第二阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号且在所述发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号且在所述发送数据的符号上不发送参考符号;
其中,所述第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
可选地,所述时间窗包括以下至少之一:K1个TTI,K2个上行TTI,K3个下行TTI,K4个符号,其中,K1、K2、K3、K4均为正整数。
根据本发明实施例的另一个方面,还提供了一种下行控制信息DCI的指示方法,包括:
根据第二预设条件确定第六DCI的内容,其中,所述第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
发送确定的所述第六DCI至终端。
可选地,根据第二预设条件确定第六DCI的内容包括:当在第一时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述上行授权用于指示所述终端发送PUSCH,所述第一时间窗为所述指定TTI之前的一个时间窗;
当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权中至少有一个上行授权指示所述终端发送参考信号时,确定所述第六DCI 的内容包括:指示所述终端在指定TTI上不发送参考信号。
可选地,根据第二预设条件确定第六DCI的内容包括:
当在第二时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述第二时间窗为所述第六DCI所在的TTI之前的一个时间窗,所述上行授权用于指示所述终端发送PUSCH;
当在第二时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
当在第二时间窗内向所述终端发送了至少一个上行授权,且至少一个所述上行授权指示所述终端发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在所述指定TTI不发送参考信号。
根据本发明实施例的另一个方面,还提供了一种物理上行共享信道PUSCH的发送装置,包括:
第一确定模块,设置为根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
第一发送模块,设置为根据确定的所述发送方式发送所述PUSCH。
可选地,所述DCI的指示包括:
第一种指示:指示在指定传输时间间隔TTI上发送参考信号;或
第二种指示:指示在指定TTI上不发送参考信号;或
第三种指示:指示在指定TTI上发送PUSCH;或
第四种指示:指示在指定符号上发送参考信号。
可选地,所述第一确定模块是设置为:当所述第一DCI的指示为所述第一种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,所述第一确定模块是设置为:当所述第一DCI的指示为第二种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所 述PUSCH的发送方式。
可选地,所述第一确定模块是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,当接收到的所述DCI的指示为第三种指示时,所述第一确定模块是设置为:根据所述第一预设条件确定所述PUSCH的发送方式。
可选地,所述第一确定模块是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,其中,所述第二DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH,则:
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第三DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内没有收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转时,确定所述PUSCH的 发送方式包括:在所述指定TTI上不发送参考信号,其中,所述第四DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权,则:
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第五DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定TTI上包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在候选的所述DMRS时域位置上发送参考信号。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定TTI上不包含候选的DMRS时域位置时,则:
当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内发送参考信号,或在所述指定TTI内不发送参 考信号和数据。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定TTI上不包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号。
可选地,所述第一确定模块是设置为:当所述第一DCI的指示为第四种指示时,根据所述第一预设条件确定所述PUSCH的发送方式。
可选地,所述第一确定模块是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定符号在第一个发送数据的符号之前时,则:
当所述指定符号与所述第一个发送数据的符号之间的时间间隔超过第一阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号,在发送数据的符号上不发送数据;
其中,所述第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
可选地,所述第一确定模块还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定符号在第一个发送数据的符号之前时,
当所述第一DCI所在的TTI与所述指定符号之间的时间间隔小于第二阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号且在所述发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号且在所述发送数据的符号上不发送参考符号;
其中,所述第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
根据本发明实施例的另一个方面,还提供了一种下行控制信息DCI的指示装置,包括:
第二确定模块,根据第二预设条件确定第六DCI的内容,其中,所述 第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
第二发送模块,设置为发送确定的所述第六DCI至终端。
可选地,所述第二确定模块是设置为通过如下方式实现根据第二预设条件确定第六DCI的内容:
当在第一时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述上行授权用于指示所述终端发送PUSCH,所述第一时间窗为所述指定TTI之前的一个时间窗;
当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权中至少有一个上行授权指示所述终端发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上不发送参考信号。
可选地,所述第二确定模块是设置为通过如下方式实现根据第二预设条件确定第六DCI的内容:
当在第二时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述第二时间窗为所述第六DCI所在的TTI之前的一个时间窗,所述上行授权用于指示所述终端发送PUSCH;
若在第二时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
若在第二时间窗内向所述终端发送了至少一个上行授权,且至少一个所述上行授权指示所述终端发送了参考信号,确定所述第六DCI的内容包括:指示所述终端在所述指定TTI不发送参考信号。
根据本发明实施例的另一个方面,还提供了一种终端,包括:第一处理 器;第一存储器,设置为存储所述第一处理器可执行的指令;所述第一处理器设置为根据所述第一存储器中存储的所述指令执行以下操作:
根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
根据确定的所述发送方式发送所述PUSCH。
可选地,所述第一DCI的指示包括:
第一种指示:指示在指定传输时间间隔TTI上发送参考信号;或
第二种指示:指示在指定TTI上不发送参考信号;或
第三种指示:指示在指定TTI上发送PUSCH;或
第四种指示:指示在指定符号上发送参考信号。
根据本发明实施例的另一个方面,还提供了一种基站,包括:第二处理器;第二存储器,设置为存储所述第二处理器可执行的指令;所述第二处理器设置为根据所述第二存储器中存储的所述指令执行以下操作:
根据第二预设条件确定第六DCI的内容,其中,所述第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
发送确定的所述第六DCI至终端。
在本发明实施例中,还提供了一种计算机存储介质,该计算机存储介质可以存储有执行指令,该执行指令用于执行上述实施例中的PUSCH的发送方法的实现。
在本发明实施例中,还提供了一种计算机存储介质,该计算机存储介质可以存储有执行指令,该执行指令用于执行上述实施例中的DCI的指示方法的实现。
通过本发明实施例,终端根据接收到基站发送的第一下行控制信息DCI的指示和第一预设条件中至少一种确定PUSCH的发送方式,根据确定的发送方式发送PUSCH,当终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,终端可以实现根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
图1是本发明实施例的一种PUSCH的发送方法的移动终端的硬件结构框图;
图2是根据本发明实施例的PUSCH的发送方法流程图;
图3是根据本发明实施例的DCI的指示方法流程图;
图4是根据本发明实施例的PUSCH的发送装置结构框图;
图5是根据本发明实施例的DCI的指示装置结构框图;
图6是根据本发明实施例的终端的结构框图;
图7是根据本发明实施例的基站的结构框图;
图8是根据本发明实施例的上行授权的发送示意图(一);
图9是根据本发明实施例的上行授权的发送示意图(二);
图10是根据本发明实施例的上行授权的发送示意图(三);
图11是根据本发明实施例的上行授权的发送示意图(四);
图12是根据本发明实施例的上行授权的发送示意图(五)。
本发明的实施方式
下文中将参考附图并结合实施例来详细说明本发明。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
在短TTI技术中,由于TTI比较短,从而导频开销比较大。一种降低导频开销的方式是多个TTI共享或者复用解调参考信号(Demodulation Reference Signal,简称为DMRS)。在多个TTI共享DMRS的情况下,如果基站不能实时上行授权终端发送DMRS或不发送DMRS,在需要发上行授权的时刻没有发送,或者基站发送上行授权之后,终端漏检某个DMRS的上行授权,由于DMRS承载在PUSCH上进行发送,当终端漏掉某个发送PUSCH的上行授权时,单纯靠接下来接收到的发送PUSCH的上行授权来判断是否发送参考信号,有可能会因漏掉一个在指定TTI发送DMRS的上行授权,紧接着的几个TTI都不会发送DMRS,导致eNB无法解调,浪费了资源。
根据本发明实施例,提供了一种PUSCH的发送方法实施例,需要说明的是,在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行,并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。
本申请实施例所提供的方法可以在移动终端或者类似的运算装置中执行。以运行在移动终端上为例,图1是应用本发明实施例的一种PUSCH的发送方法的移动终端的硬件结构框图。如图1所示,移动终端10可以包括一个或多个(图中仅示出一个)处理器102(处理器102可以包括微处理器MCU或可编程逻辑器件FPGA等处理装置)、设置为存储数据的存储器104、以及设置为通信功能的传输模块106。本领域普通技术人员可以理解,图1所示的结构仅为示意,其并不对上述移动终端的结构造成限定。例如,移动终端10还可包括比图1中所示更多或者更少的组件,或者具有与图1所示不同的配置。
存储器104可设置为存储应用软件的软件程序以及模块,如本发明实施例中的PUSCH的发送方法对应的程序指令或模块,处理器102设置为通过运行存储在存储器104内的软件程序以及模块,从而执行一种或多种功能应用以及数据处理,即实现上述的应用程序的漏洞检测方法。存储器104可包括高速随机存储器,还可包括非易失性存储器,如一个或者多个磁性存储装 置、闪存、或者其他非易失性固态存储器。在一些实例中,存储器104可进一步包括相对于处理器102远程设置的存储器,这些远程存储器可以通过网络连接至移动终端10。上述网络的实例包括互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106设置为经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端10的通信供应商提供的无线网络。在一个实例中,传输装置106包括一个网络适配器(Network Interface Controller,NIC),其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中,传输装置106可以为射频(Radio Frequency,RF)模块,其设置为通过无线方式与互联网进行通讯。
图2是本发明实施例的PUSCH的发送方法流程图。如图2所示,本实施例的PUSCH的发送方法包括以下步骤:
步骤S202,根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
步骤S204,根据确定的发送方式发送PUSCH。
通过上述步骤,终端根据接收到基站发送的第一下行控制信息DCI的指示和第一预设条件中至少一种确定PUSCH的发送方式,根据确定的发送方式发送PUSCH,使得终端若漏掉基站发送的PUSCH的上行授权,可能导致eNB无法解调时,可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在本实施例的一个可选示例中,第一DCI的指示包括以下至少之一:
第一种指示:指示在指定TTI上发送参考信号,其中,参考信号承载在PUSCH上发送;
第二种指示:指示在指定TTI上不发送参考信号;
第三种指示:指示在指定TTI上发送PUSCH;
第四种指示:指示在指定符号上发送参考信号。
下面对第一DCI发出四种不同的指示时,终端侧如何确定PUSCH的发送方式进行具体说明。
1.当第一DCI的指示为第一种指示时,即指示在指定TTI上发送参考信号,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
2.当所述第一DCI的指示为第二种指示时,即指示在指定TTI上不发送参考信号,根据第一预设条件确定PUSCH的发送方式。
可选地,根据第一预设条件确定PUSCH的发送方式包括:
在指定TTI之前的一个时间窗内,若发送了PUSCH,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
根据第一预设条件确定PUSCH的发送方式还包括:
在第一DCI所在的TTI之前的一个时间窗内,若接收到基站发送的上行授权,确定PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;若没有接收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
3.当第一DCI的指示为第三种指示时,即指示在指定TTI上发送PUSCH,根据第一预设条件确定PUSCH的发送方式。
可选地,根据第一预设条件确定PUSCH的发送方式包括:
在指定TTI之前的一个时间窗内,若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第 二DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,其中,第二DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第三DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
在第一DCI所在的TTI之前的一个时间窗内,若没有收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,其中,第四DCI为在时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,根据所述第一预设条件确定PUSCH的发送方式还包括:
在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第五DCI为在所述时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号。
4.当第一DCI的指示为第四种指示时,即指示在指定符号上发送参考信号,根据第一预设条件确定PUSCH的发送方式。
可选地,根据第一预设条件确定PUSCH的发送方式包括:
当指定符号在第一个发送数据的符号之前时,执行以下操作:
当指定符号与第一个发送数据的符号之间的时间间隔超过第一阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号,在发送数据的符号上不发送数据;
其中,第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
当指定符号在第一个发送数据的符号之前时,执行以下操作:
当第一DCI所在的TTI与指定符号之间的时间间隔小于第二阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号且在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号且在发送数据的符号上不发送参考符号;
其中,第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
若指定TTI上包含候选的DMRS时域位置,确定PUSCH的发送方式包括:在候选的DMRS时域位置上发送参考信号。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
若指定TTI上不包含候选的DMRS时域位置,执行以下操作:
在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI内不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI内发送参考信号,或在指定TTI内不发送参考信号和数据。
可选地,根据第一预设条件确定PUSCH的发送方式还包括:
若指定TTI上不包含候选的DMRS时域位置,确定PUSCH的发送方式包括:在指定TTI内不发送参考信号。
本发明实施例中涉及的时间窗包括以下至少之一:K1个TTI,K2个上行TTI,K3个下行TTI,K4个符号,其中,K1、K2、K3、K4均为正整数。
本实施例还提供了一种基站侧下行控制信息DCI的指示方法。图3是本发明实施例的DCI的指示方法流程图。如图3所示,该方法包括以下步骤:
步骤S302,根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
步骤S304,发送确定的第六DCI至终端。
通过上述步骤,基站根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
然后基站发送确定的第六DCI至终端,实现了终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在本实施例的一个可选示例中,上述步骤S302可以通过以下方式实现:
若在第一时间窗内没有向终端发送上行授权,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号,其中,上行授权用于指示终端在第一时间窗内发送PUSCH,第一时间窗为指定TTI之前的一个时间窗;
若向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若向终端发送了至少一个上行授权,且上行授权中至少有一个上行授权指示终端发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上不发送参考信号。
可选地,上述步骤S302还可以通过以下方式实现:
若在第二时间窗内向终端没有发送上行授权,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号,其中,第二时间窗为所述第六DCI所在的TTI之前的一个时间窗,上行授权用于指示终端在第二时间窗发送PUSCH;
若在第二时间窗内向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若在第二时间窗内向终端发送了至少一个上行授权,且至少一个上行授权指示终端发送了参考信号,确定第六DCI的内容包括:指示终端在所述指定TTI不发送参考信号。
需要说明的是,由于一个时间窗内可能接到多个上行授权或DCI指示,因此第一时间窗内的上行授权可以有多个,第二时间窗内的上行授权也可以是多个,本实施例对此不作限定。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务 器,或者网络设备等)执行本发明一种或多种实施例的方法。
本实施例提供了一种PUSCH的发送装置,应用于终端,该装置用于实现上述PUSCH的发送方法实施例及可选示例,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和硬件中至少一种。尽管以下实施例所描述的装置以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图4是本发明实施例的PUSCH的发送装置结构框图。如图4所示,该装置包括:
第一确定模块40,设置为根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
第一发送模块42,设置为根据确定的发送方式发送PUSCH。
通过上述装置,第一确定模块40根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;第一发送模块42根据确定的发送方式发送PUSCH。实现了终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,终端可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在本实施例的一个可选示例中,上述DCI的指示包括以下至少之一:
第一种指示:指示在指定TTI上发送参考信号;
第二种指示:指示在指定TTI上不发送参考信号;
第三种指示:指示在指定TTI上发送PUSCH;
第四种指示:指示在指定符号上发送参考信号。
1.当第一DCI的指示为第一种指示时,第一确定模块40是设置为:确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
2.当所述第一DCI的指示为第二种指示时,第一确定模块40是设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一确定模块40还设置为:在指定TTI之前的一个时间窗内, 若发送了PUSCH,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一确定模块40是设置为:在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一确定模块40还设置为:在第一DCI所在的TTI之前的一个时间窗内,若接收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有接收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
3.当接收到的第一DCI的指示为第三种指示时,第一确定模块40是设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一确定模块40是设置为:在指定TTI之前的一个时间窗内,若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一确定模块40还设置为:在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,其中,第二DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一确定模块40还设置为:在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第三DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一确定模块40还设置为:在第一DCI所在的TTI之前的一个时间窗内,若没有收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一确定模块40还设置为:在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,其中,第四DCI为在时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一确定模块40还设置为:在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第五DCI为在所述时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号。
4.当第一DCI的指示为第四种指示时,第一确定模块40是设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一确定模块40是设置为:当指定符号在第一个发送数据的符号之前时,执行以下操作:
当指定符号与所述第一个发送数据的符号之间的时间间隔超过第一阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号,在发送数据的符号上不发送数据;
其中,第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
可选地,第一确定模块40还设置为:当指定符号在第一个发送数据的符号之前时,执行以下操作:
当第一DCI所在的TTI与指定符号之间的时间间隔小于第二阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号且在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号且在发送数据的符号上不发送参考符号;
其中,第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
可选地,第一确定模块40还设置为:若指定TTI上包含候选的DMRS时域位置,确定PUSCH的发送方式包括:在候选的DMRS时域位置上发送参考信号。
可选地,第一确定模块40还设置为:若指定TTI上不包含候选的DMRS时域位置,执行以下操作:
在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI内不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI内发送参考信号,或在指定TTI内不发送参考信号和数据。
可选地,若指定TTI上不包含候选的DMRS时域位置,确定PUSCH的 发送方式包括:在所述指定TTI内不发送参考信号。
为了更好地理解本发明实施例,在本实施例中还提供了一种DCI的指示装置,应用于基站,该装置用于实现上述DCI的指示方法实施例及可选示例,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和硬件中至少一种。尽管以下实施例所描述的装置以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图5是本发明实施例的DCI的指示装置结构框图。如图5所示,该装置包括:
第二确定模块50,根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
第二发送模块52,设置为发送确定的第六DCI至终端。
通过上述装置,第二确定模块50根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;第二发送模块52发送确定的第六DCI至终端。实现了终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,终端可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在本实施例的一个可选示例中,第二确定模块50是设置为:
若没有向终端发送上行授权,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号,其中,上行授权用于指示终端在第一时间窗内发送PUSCH,第一时间窗为指定TTI之前的一个时间窗;
若向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若向终端发送了至少一个上行授权,且上行授权中至少有一个上行授权指示终端发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上不发送参考信号。
在本实施例的一个可选示例中,第二确定模块50是设置为:
若在第二时间窗内向终端没有发送上行授权,确定第六DCI的内容包 括:指示终端在指定TTI上发送参考信号,其中,第二时间窗为第六DCI所在的TTI之前的一个时间窗,上行授权用于指示终端在第二时间窗内发送PUSCH;
若在第二时间窗内向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若在第二时间窗内向终端发送了至少一个上行授权,且至少一个上行授权指示终端发送了参考信号,确定第六DCI的内容包括:指示终端在指定TTI不发送参考信号。
需要说明的是,由于一个时间窗内可能接到多个上行授权或DCI指示,因此第一时间窗内的上行授权可以有多个,第二时间窗内的上行授权也可以是多个,本实施例对此不作限定。
为了更好地理解本发明实施例,本实施例还提供了一种终端,作为上述PUSCH发送装置的执行主体,已经进行过的描述不再重复。图6是本发明实施例的终端的结构框图,如图6所示,该终端包括:
第一处理器60;第一存储器62,设置为存储第一处理器60可执行的指令;
第一处理器60设置为根据第一存储器62中存储的指令执行以下操作:
根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
根据确定的发送方式发送PUSCH。
通过上述终端,第一处理器60设置为根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;根据确定的发送方式发送PUSCH。实现了终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,终端可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
可选地,第一DCI的指示包括以下至少之一:
第一种指示:指示在指定传输时间间隔TTI上发送参考信号;
第二种指示:指示在指定TTI上不发送参考信号;
第三种指示:指示在指定TTI上发送PUSCH;
第四种指示:指示在指定符号上发送参考信号。
1.当第一DCI的指示为第一种指示时,第一处理器60是设置为:确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
2.当所述第一DCI的指示为第二种指示时,第一处理器60是设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一处理器60还设置为:在指定TTI之前的一个时间窗内,若发送了PUSCH,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一处理器60还设置为:在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一处理器60还设置为:在第一DCI所在的TTI之前的一个时间窗内,若接收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号;若没有接收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,或在指定TTI上不发送参考信号和数据。
3.当接收到的第一DCI的指示为第三种指示时,第一处理器60是设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一处理器60还设置为:在指定TTI之前的一个时间窗内,若没有发送PUSCH,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一处理器60还设置为:在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号,其中,第二DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一处理器60还设置为:在指定TTI之前的一个时间窗内,若发送了PUSCH,执行以下操作:
在指定TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第三DCI为指定TTI之前的一个时间窗内,离指定TTI最近的发送的PUSCH对应的DCI;
若第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一处理器60还设置为:在第一DCI所在的TTI之前的一个时间窗内,若没有收到基站发送的上行授权,确定PUSCH的发送方式包括:在指定TTI上发送参考信号。
可选地,第一处理器60还设置为:在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,其中,第四DCI为在时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据。
可选地,第一处理器60还设置为:在第一DCI所在的TTI之前的一个时间窗内,若收到了基站发送的上行授权,执行以下操作:
在第一DCI所在的TTI之前的一个时间窗内,若第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号,或在指定TTI上不发送参考信号和数据,其中,第五DCI为在所述时间窗内接收到的最接近第一DCI所在的TTI的上行授权;
若第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转,确定PUSCH的发送方式包括:在指定TTI上不发送参考信号。
4.当第一DCI的指示为第四种指示时,第一处理器60还设置为:根据第一预设条件确定PUSCH的发送方式。
可选地,第一处理器60还设置为:当指定符号在第一个发送数据的符号之前时,执行以下操作:
当指定符号与所述第一个发送数据的符号之间的时间间隔超过第一阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号,在发送数据的符号上不发送数据;
其中,第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
可选地,第一处理器60还设置为:当指定符号在第一个发送数据的符号之前时,执行以下操作:
当第一DCI所在的TTI与指定符号之间的时间间隔小于第二阈值时,确定PUSCH的发送方式包括:在指定符号上不发送参考信号且在发送数据的至少一个符号上发送参考信号;或在指定符号上不发送参考信号且在发送数据的符号上不发送参考符号;
其中,第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
可选地,第一处理器60还设置为:若指定TTI上包含候选的DMRS时 域位置,确定PUSCH的发送方式包括:在候选的DMRS时域位置上发送参考信号。
可选地,第一处理器60还设置为:若指定TTI上不包含候选的DMRS时域位置,执行以下操作:
在指定TTI之前的一个时间窗内,若发送了参考信号,确定PUSCH的发送方式包括:在指定TTI内不发送参考信号;若没有发送参考信号,确定PUSCH的发送方式包括:在指定TTI内发送参考信号,或在指定TTI内不发送参考信号和数据。
可选地,若指定TTI上不包含候选的DMRS时域位置,确定PUSCH的发送方式包括:在所述指定TTI内不发送参考信号。
为了更好地理解本发明实施例,本实施例还提供了一种基站,作为上述DCI的指示装置的执行主体,已经进行过的描述此处不再重复。图7是根据本发明实施例的基站的结构框图,如图7所示,该基站包括:
第二处理器70;
第二存储器72,设置为存储第二处理器70可执行的指令;
第二处理器70是设置为根据第二存储器72中存储的指令执行以下操作:
根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
发送确定的第六DCI至终端。
通过上述基站,第二处理器70根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;发送确定的第六DCI至终端。实现了终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,终端可以根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。
在本实施例的一个可选示例中,第二处理器70还设置为:
若在第一时间窗内没有向终端发送上行授权,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号,其中,上行授权用于指示终端在 第一时间窗内发送PUSCH,第一时间窗为指定TTI之前的一个时间窗;
若向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若向终端发送了至少一个上行授权,且上行授权中至少有一个上行授权指示终端发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上不发送参考信号。
在本实施例的一个可选示例中,第二处理器70还设置为:
若在第二时间窗内向终端没有发送上行授权,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号,其中,第二时间窗为第六DCI所在的TTI之前的一个时间窗,上行授权用于指示终端在第二时间窗内发送PUSCH;
若在第二时间窗内向终端发送了至少一个上行授权,且上行授权均指示终端不发送参考信号,确定第六DCI的内容包括:指示终端在指定TTI上发送参考信号;
若在第二时间窗内向终端发送了至少一个上行授权,且至少一个上行授权指示终端发送了参考信号,确定第六DCI的内容包括:指示终端在指定TTI不发送参考信号。
需要说明的是,由于一个时间窗内可能接到多个上行授权或DCI指示,因此第一时间窗内的上行授权可以有多个,第二时间窗内的上行授权也可以是多个,本实施例对此不作限定。
本实施例提供了一种DMRS的传输方法,避免了如果终端漏检了指示发送DMRS的上行授权,那么紧接着的几个TTI都不会发送DMRS,导致eNB无法解调,浪费资源的问题。
本实施例以short TTI系统为例来说明,需要说明的是,本实施例提供的方法不限于用于short TTI系统。
在本实施例中,基站发送DCI给用户设备或终端(User Equipment,简称为UE)来指示UE是否发送DMRS,此处的基站可以是NB、eNB等,本实施例以eNB为例进行说明。此处的指示可以通过在DCI中包含一个指示 比特bit来表示,“1”代表发送DMRS,“0”代表不发送DMRS。也可以通过其他方式来指示,例如在DCI中包含一个域,该域用于指示是否发送DMRS以及其他的信息,此处的其他信息可以是DMRS和数据的位置关系信息。该域中的部分状态表示不发送DMRS,部分状态表示发送DMRS。本发明实施例对指示的方式不做限定,本实施例中的方法均可适用。
可选地,当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,n为正整数,如果DCI指示UE在TTI#n发送DMRS,UE需要在TTI#n上发送DMRS;如果DCI指示在TTI#n不发送DMRS,UE需要做以下判断:
在TTI#n之前的一个时间窗内,如果发送了PUSCH(或者DMRS),那么UE在TTI#n上不发送DMRS;
在TTI#n之前的一个时间窗内,如果没有发送PUSCH(或者DMRS),那么UE在TTI#n上发送DMRS。
举例说明:图8是根据本发明实施例的上行授权的发送示意图(一)。如图8所示,一个子帧被划分为7个TTI,每个TTI包含2个符号,一个时间窗包括2个TTI。eNB连续调度了3个PUSCH,其中上行授权1指示发送DMRS,上行授权2和3指示不发送DMRS。上行授权指示在TTI#6不发送DMRS,对于TTI#6,窗内包含2个TTI,分别为TTI#4和TTI#5。UE收到上行授权3后,发现eNB指示UE不要发送DMRS,UE观察时间窗内,TTI#4和TTI#5发送了2个PUSCH,说明UE没有漏检基站发送的上行授权,那么UE在TTI#6就不会发送DMRS。
图9是根据本发明实施例的上行授权的发送示意图(二)。如图9所示,当上行授权1漏检时,UE只接收到上行授权2和3,上行授权指示在TTI#5上发送DMRS,对应的时间窗包含TTI#3和TTI#4,UE发现在时间窗内没有发送PUSCH,那么UE就会在TTI#5上发送DMRS。这样,避免了因为漏检上行授权1造成的没有发送DMRS的情况。
对于eNB侧,当eNB的指示为UE在TTI#n发送DMRS时,则知道UE会发送DMRS;对于指示不发送DMRS时,如果发现UE在TTI#n的前一个时间窗内没有发送PUSCH,则认为UE在TTI#n上会发送DMRS,如果发现UE在TTI#n的前一个时间窗内发送了PUSCH,认为UE在TTI#n 没有发送DMRS,只发送了数据。
可选地,当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI指示UE在TTI#n发送DMRS,UE需要在TTI#n上发送DMRS;如果DCI指示在TTI#n不发送DMRS时,UE需要做以下判断:
在TTI#n之前的一个时间窗内,如果发送了PUSCH(或者DMRS),那么UE在TTI#n上不发送DMRS;
在TTI#n之前的一个时间窗内,如果没有发送PUSCH(或者DMRS),那么UE在TTI#n上放弃发送任何信号。
如图9所示,当上行授权1漏检时,UE只接收到上行授权2和3,TTI#5对应的时间窗包含TTI#3和TTI#4,UE发现在时间窗内没有发送PUSCH,那么UE就会放弃在TTI#5上发送DMRS和数据。同样,UE也会放弃在TTI#6上发送DMRS和数据。这样可以避免UE发送没有必要的信号,因为没有DMRS,UE发送了eNB也无法解调。
对于eNB侧,当eNB指示为UE在TTI#n发送DMRS时,则知道UE会发送DMRS;对于指示不发送DMRS时,如果发现UE在时间窗内没有发送PUSCH,则认为UE在TTI#n上不会发送DMRS和数据,如果发现UE在时间窗内发送了PUSCH,则认为UE在TTI#n没有发送DMRS,只发送了数据。
可选地,时间窗的大小可以是eNB配置的,也可以是预设的。比如通过带内信令(Signaling In Band,简称为SIB)或者无线资源控制协议(Radio Resource Control,简称为RRC)或者下行控制信息(Downlink Control Information,简称为DCI)通知的,本实施例对此不作限定,且此处的描述适用于本发明所有实施例。
本发明实施例中时间窗的大小可以以TTI为单位,也可以以符号为单位,比如为2个TTI,或者5个符号。
可选的,发送DMRS的位置可以是预设的,也可以是eNB通知的,比如预设为调度的TTI中的第一个符号。
本发明实施例中的方法可用于TTI是划分好的场景,如图8所示,一个 子帧被划分为7个TTI,每个TTI的大小可以是相同的,也可以是不同的,比如有些TTI包含2个符号,有些TTI包含3个符号,本实施例对此不作限定。本实施例中的方法也可用于TTI是灵活调度的场景。此处的描述对本发明中的所有实施例都适用。
本实施例中的方法也可以描述如下:
当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI指示UE发送DMRS,UE需要在TTI#n上发送DMRS;如果DCI指示不发送DMRS时,UE需要做以下判断:
在DCI所在的TTI之前的一个时间窗内,如果接收到上行授权,那么UE在TTI#n上不发送DMRS;
在DCI所在的TTI之前的一个时间窗内,如果没有接收到上行授权,那么UE在TTI#n上发送DMRS。
本实施例中的方法也可以描述如下:
当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI指示UE发送DMRS,UE需要在TTI#n上发送DMRS;如果DCI指示不发送DMRS时,UE需要做以下判断:
在DCI所在的TTI之前的一个时间窗内,如果接收到上行授权,那么UE在TTI#n上不发送DMRS,只发送数据;
在DCI所在的TTI之前的一个时间窗内,如果没有接收到上行授权,那么UE在TTI#n上不发送DMRS和数据。
在本发明的实施例中,以上下行的TTI划分相同来说明,比如上下行都是2符号的TTI,本发明中的方法也可用于上下行TTI划分不同的情况,比如上行为7符号的TTI,下行为2符号的TTI。
或者,也可以采用下述方式:
当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI指示UE发送DMRS,UE需要在TTI#n上发送DMRS;如果DCI指示不发送DMRS时,UE需要做以下判断:
在DCI所在的TTI之前的一个时间窗内,如果接收到上行授权,且上 行授权中的至少一个上行授权指示发送DMRS,那么UE在TTI#n上不发送DMRS,只发送数据;
在DCI所在的TTI之前的一个时间窗内,如果没有接收到上行授权,或者接收到上行授权,且其中所有上行授权均指示不发送DMRS,那么UE在TTI#n上发送DMRS,或者不发送DMRS和数据。
在本发明的实施例中,以上下行的TTI划分相同来说明,比如上下行都是2符号的TTI,本发明实施例中的方法也可用于上下行TTI划分不同的情况,比如上行为7符号的TTI,下行为2符号的TTI。
本实施例提供了一种DMRS的传输方法,避免了如果终端漏检了指示发送DMRS的上行授权,那么紧接着的几个TTI都不会发送DMRS,导致eNB无法解调,浪费资源的问题。
本实施例以short TTI系统为例来说明,需要说明的是本实施例给出的方法不限于用于short TTI技术。
在本实施例中,DCI中包含一个指示比特bit,利用指示bit是否发生反转来指示是否发送DMRS。比如,当需要发送DMRS时发生反转,不需要发送DMRS时不变。或者,当需要发送DMRS时不变,不需要发送DMRS时发生反转。
下面以当需要发送DMRS时发生反转,不需要发送DMRS时不变为例来进行说明。
可选地,当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,在TTI#n之前的一个时间窗内,如果没有发送PUSCH,那么在TTI#n上发送DMRS;在TTI#n之前的一个时间窗内,如果发送了PUSCH,那么UE需要做以下判断:
假设在时间窗内离TTI#n最近的PUSCH所在的TTI为TTI#n-k,k为小于n的正整数。如果TTI#n对应的DCI中的指示bit相比TTI#n-k对应的DCI中的指示bit没有发生反转,则在TTI#n上不发送DMRS;
如果TTI#n对应的DCI中的指示bit相比TTI#n-k对应的DCI中的指示bit发生了反转,则在TTI#n上发送DMRS。
如图9所示,时间窗包含2个TTI。eNB连续调度了3个PUSCH,假设两个上行授权中的指示bit都为1。当上行授权1漏检时,UE只接收到上行授权2和上行授权3,那么UE会在图中的窗内判断是否发送了PUSCH,发现没有发送,则UE会在TTI#5上发送DMRS。
在上述举例中,对于TTI#5,eNB本来指示并不发送DMRS,而现在却发送了DMRS,数据传输的符号数少了,为了能够保证性能,TTI#5上的传输块集(Transport Block Set,简称为TBS)可以根据预设的规则进行缩小,比如
Figure PCTCN2017102795-appb-000001
其中,NPRB为分配的物理资源块(Physical Resource Block,简称为PRB)个数,NPRB为调度的TTI包含的符号数,NDMRS为发送的DMRS的符号数,nPRB为TBS对应的PRB个数。或者,也可以有
Figure PCTCN2017102795-appb-000002
该方法也适用于本发明的其它实施例。
可选地,当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,在TTI#n之前的一个时间窗内,如果没有发送PUSCH,那么在TTI#n上发送DMRS;在TTI#n之前的一个时间窗内,如果发送了PUSCH,那么UE需要做以下判断:
假设在所述时间窗内离TTI#n最近的PUSCH所在的TTI为TTI#n-k,如果TTI#n对应的DCI中的指示bit相比TTI#n-k对应的DCI中的指示bit没有发生反转,则在TTI#n上不发送DMRS,只发送数据;
如果TTI#n对应的DCI中的指示bit相比TTI#n-k对应的DCI中的指示bit发生了反转,则在TTI#n上不发送DMRS和数据。
可选地,时间窗的大小是eNB配置的,或者是预设的。比如通过SIB或者RRC或者DCI通知的。
时间窗的大小可以以TTI为单位,也可以以符号为单位,比如为2个TTI,或者5个符号。
可选的,发送DMRS的位置可以是预设的,也可以是eNB通知的。
对于eNB侧,如果在TTI#n之前的窗内没有调度PUSCH,则知道UE会发送DMRS。
如果窗内调度了PUSCH,需要对窗内的TTI进行检测,如果窗内没有 PUSCH,则知道UE会在TTI#n发送DMRS;如果窗内调度了PUSCH,则根据窗内最后一个接收到的PUSCH对应的上行授权和本TTI对应的上行授权中的指示比特进行对比,判断UE是否在TTI#n发送了DMRS。
本实施例中的方法也可以描述如下:
当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI所在的TTI之前的时间窗中没有接收到上行调度,则UE需要在TTI#n上发送DMRS;如果DCI所在的TTI之前的时间窗中接收到上行调度,UE需要做以下判断:
如果DCI中的指示bit相对时间窗内离所述DCI最近的上行调度的指示bit没有发生反转,则在TTI#n不发送DMRS;
如果DCI中的指示bit相对时间窗内离DCI最近的上行调度的指示bit发生了反转,则在TTI#n发送DMRS。
或者,也可以描述如下:
当UE接收到调度UE在TTI#n上发送PUSCH的DCI时,如果DCI所在的TTI之前的时间窗中没有接收到上行调度,则UE需要在TTI#n上发送DMRS;如果DCI所在的TTI之前的时间窗中接收到上行调度,UE需要做以下判断:
如果DCI中的指示bit相对所述时间窗内离DCI最近的上行调度的指示bit没有发生反转,则在TTI#n不发送DMRS;
如果DCI中的指示bit相对时间窗内离所述DCI最近的上行调度的指示bit发生了反转,则在TTI#n上不发送DMRS和数据。
本实施例还提供了一种DMRS的传输方法,避免了如果终端漏检了指示发送DMRS的上行授权,那么紧接着的几个TTI都不会发送DMRS,导致eNB无法解调,浪费资源的问题。
本实施例以short TTI系统为例来说明,本实施例给出的方法不限于用于short TTI技术。
对于图8中的连续调度的情况,如果上行调度授权中指示DMRS的位置,那么即使漏检了上行授权1,那么UE接收到DMRS之后,仍能获知 DMRS的位置。但是,上行授权2和DMRS之间的时间间隔比较短,可能会超过UE的实际处理能力。
下面给出一种解决方案,不限于用于上述场景。
可选地,当UE接收到上行授权,并且上行授权中指示的DMRS与数据之间的时间差(时间间隔)超过一个阈值,UE将在数据符号中的一个符号上发送DMRS,在eNB指示的DMRS位置上不发送DMRS和数据。发送DMRS的符号可以是预设的,比如为第一个数据符号。这里时间间隔可以定义为发送DMRS的截止位置与发送数据的起始位置之间的时间差,也可以定义为发送DMRS的起始位置与发送数据的起始位置之间的时间差,也可以定义为发送DMRS的截止位置与发送数据的截止位置之间的时间差。
可选地,当UE接收到上行授权,并且上行授权中指示的DMRS与上行授权之间的时间差小于一个阈值,UE将在数据符号中的一个符号上发送DMRS,在eNB指示的DMRS位置上不发送DMRS和数据。发送DMRS的符号可以是预设的,比如为第一个数据符号。这里时间间隔可以定义为发送DMRS的截止位置与上行授权所在TTI的起始位置之间的时间差,也可以定义为发送DMRS的起始位置与上行授权所在TTI的起始位置之间的时间差,也可以定义为发送DMRS的截止位置与上行授权所在TTI的截止位置之间的时间差。
对于eNB侧,如果发现UE在指示的DMRS位置上没有发送DMRS,判断UE会在数据符号上发送DMRS。
可选地,当UE接收到上行授权,并且上行授权中指示的DMRS与数据之间的时间差超过一个阈值,UE将放弃本次发送。
可选地,当UE接收到上行授权,并且上行授权中指示的DMRS与所述上行授权之间的时间差小于一个阈值,UE将放弃本次发送。
可选地,阈值是预设的,或者是eNB通知的,比如是RRC或者SIB信令通知的。
可选地,阈值可以以TTI为单位,或者以符号为单位。
图10是根据本发明实施例的上行授权的发送示意图(三)。假设阈值 为4个TTI。如图10所示,TTI#0上的上行授权调度UE发送PUSCH,并指示DMRS在TTI#2上发送,数据在TTI#6上发送。发送DMRS的TTI与发送上行授权的TTI之间的时间间隔是2个TTI,那么,UE在指示的TTI#2上对应的DMRS位置上不发送DMRS,而在TTI#6上的第一个符号上发送DMRS,或者UE放弃本次发送,即在DMRS和数据的位置上都不发送信号。
本实施例还提供了一种DMRS的传输方法,避免了如果终端漏检了指示发送DMRS的上行授权,那么紧接着的几个TTI都不会发送DMRS,导致eNB无法解调,浪费资源的问题。
本实施例以short TTI系统来说明,本实施例给出的方法不限于用于short TTI技术。
发送DMRS的候选时域位置是预设的或者是eNB通过RRC信令或者SIB信令通知的,比如为一个符号中的0、4、8。或者,从无线帧#0开始,候选DMRS的位置是均匀的,比如密度为1/4。即每4个符号有一个DMRS,该密度是预设的,或者是eNB指示的。
如果eNB调度UE发送PUSCH的TTI内包含上述候选DMRS位置中的一个时,在上述候选位置上发送DMRS。
可选地,如果TTI内不包含上述候选DMRS位置时,UE在一个时间窗内观察,是否发送了DMRS,如果没有发送,则发送DMRS;如果发送了,则不发送DMRS。
可选地,如果TTI内不包含上述候选DMRS位置时,UE不发送DMRS。
图11是根据本发明实施例的上行授权的发送示意图(四)。比如,如图11所示。上行授权1调度UE在TTI#2上发送,上行授权2调度UE在TTI#6上发送。在TTI#2上有候选的DMRS位置,那么在TTI#2上的第一个符号上会发送数据,第二个符号上发送DMRS。在TTI#6上没有候选的DMRS位置,那么,UE在TTI#6上只发送数据,或者,在TTI#6之前的一个时间窗内观察,是否在时间窗内发送了DMRS,比如,时间窗为2个TTI,即TTI#4和5,在时间窗内并没有发送DMRS,那么UE会在TTI#6上发送DMRS,比如,在TTI#6的第一个符号上发送DMRS。
可选地,时间窗的大小是eNB配置的,或者是预设的。比如通过SIB或者RRC或者DCI通知的。
时间窗的大小可以以TTI为单位,也可以以符号为单位。比如为2个TTI,或者5个符号。
可选的,发送DMRS的位置可以是预设的,或者是eNB通知的。
本实施例还给出一种eNB指示发送DMRS的方法。
本实施例以short TTI系统来说明,本实施例给出的方法不限于用于short TTI技术。
eNB发送DCI,所述DCI调度UE在指定TTI发送PUSCH。如果eNB没有发送调度所述UE在指定时间窗内发送PUSCH的上行授权,或者eNB发送了调度所述UE在指定时间窗内发送PUSCH的上行授权且所述上行授权指示所述UE不发送DMRS,那么eNB在所述DCI中指示所述UE发送DMRS。
如果eNB发送了调度所述UE在指定时间窗内发送PUSCH的上行授权且所述上行授权指示所述UE发送DMRS,那么eNB在所述DCI中指示所述UE不发送DMRS。
所述指定时间窗为所述指定TTI之前的一个时间窗。
图12是根据本发明实施例的上行授权的发送示意图(五)。假设eNB侧的窗长为2个TTI,在图12中,每个方框表示一个TTI。eNB在TTI#2、3、5上发送DCI,调度UE在TTI#6、7、9上发送PUSCH。对于TTI#6,窗内包括两个TTI,即TTI#4和5,由于TTI#4和5上没有调度UE的PUSCH,那么eNB在TTI#6上会指示UE发送DMRS。对于TTI#7,窗内包括两个TTI,即TTI#5和6,由于TTI#6上指示UE发送DMRS,那么eNB在TTI#7上会指示UE不发送DMRS。对于TTI#9,窗内包括两个TTI,即TTI#7和8,只有TTI#7调度了PUSCH,并且指示UE不发送DMRS,那么eNB在TTI#9上会指示UE发送DMRS.
上面的方法也可以描述为:
eNB给UE发送DCI,调度UE在指定TTI内发送PUSCH,在指定DCI 所在的TTI之前的一个时间窗内,如果eNB没有调度所述UE,也就是说没有发送上行授权,或者调度了UE,且给UE指示不发送DMRS,那么eNB在指定TTI中给UE指示发送DMRS。如果在指定TTI之前的时间窗内,如果eNB给UE发送过上行调度的DCI,且指示了发送DMRS,那么eNB在DCI中给UE指示不发送DMRS。
如图12所示,假设窗为2个TTI。对于TTI#2,其对应的时间窗为TTI#0和1,在TTI#0和1上,eNB没有给UE发送上行授权,那么在TTI#2上eNB会给UE指示发送DMRS。对于TTI#3,其对应的时间窗为TTI#1和2,在TTI#2上,eNB给UE发送了上行授权,且给UE指示发送DMRS,那么在TTI#3上eNB会给UE指示不发送DMRS。对于TTI#5,其对应的时间窗为TTI#3和4,在TTI#3上,eNB给UE发送了上行授权,且给UE指示不发送DMRS,那么在TTI#5上eNB会给UE指示发送DMRS。
可选地,在DCI中,eNB可以通过1bit来指示是否发送DMRS。或者,也可以通过1bit指示bit是否反转来指示是否发送DMRS。
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以用于保存上述实施例所提供的PUSCH的发送方法所执行的程序代码。
可选地,在本实施例中,上述存储介质可以位于计算机网络中移动终端群中的任意一个移动终端中,或者位于移动终端群中的任意一个移动终端中。
可选地,在本实施例中,存储介质被设置为存储用于执行以下步骤的程序代码:
S1,根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
S2,根据确定的发送方式发送PUSCH。
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以用于保存上述实施例所提供的DCI的指示方法所执行的程序代码。
可选地,在本实施例中,存储介质被设置为存储用于执行以下步骤的程序代码:
S1,根据第二预设条件确定第六DCI的内容,其中,第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
S2,发送确定的第六DCI至终端。
上述本发明实施例序号仅仅为了描述,不代表实施例的优劣。
在本发明的上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中,应该理解到,所揭露的技术内容,可通过其它的方式实现。其中,以上所描述的装置实施例仅仅是示意性的,例如所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,单元或模块的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
本领域普通技术人员可以理解,上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中,在以上描述中提及的功能模块/单元之间的 划分不一定对应于物理单元的划分;例如,一个物理组件可以具有多个功能,或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实施为由处理器,如数字信号处理器或微处理器执行的软件,或者被实施为硬件,或者被实施为集成电路,如专用集成电路。这样的软件可以分布在计算机可读介质上,计算机可读介质可以包括计算机存储介质(或非暂时性介质,即非暂态存储介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的,术语计算机存储介质包括用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外,本领域技术人员公知的是,通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据,并且可包括任何信息递送介质。以上所述仅为本发明的可选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
当终端若漏掉基站发送的PUSCH的上行授权,有可能导致eNB无法解调时,上述实施例可以实现终端根据DCI或预设条件确定PUSCH的发送方式,从而基站可以顺利进行解调,避免了资源浪费。

Claims (52)

  1. 一种物理上行共享信道PUSCH的发送方法,包括:
    根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件(S202);
    根据确定的所述发送方式发送所述PUSCH(S204)。
  2. 根据权利要求1所述的方法,其中,所述第一DCI的指示包括:
    第一种指示:指示在指定传输时间间隔TTI上发送参考信号;或
    第二种指示:指示在指定TTI上不发送参考信号;或
    第三种指示:指示在指定TTI上发送PUSCH;或
    第四种指示:指示在指定符号上发送参考信号。
  3. 根据权利要求2所述的方法,其中,当所述第一DCI的指示为所述第一种指示时,确定所述PUSCH的发送方式包括:
    在所述指定TTI上发送参考信号。
  4. 根据权利要求2所述的方法,其中,当所述第一DCI的指示为第二种指示时,确定所述PUSCH的发送方式包括:
    根据所述第一预设条件确定所述PUSCH的发送方式。
  5. 根据权利要求4所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式包括:
    当在所述指定TTI之前的一个时间窗内发送了PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  6. 根据权利要求4所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式 包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  7. 根据权利要求4所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  8. 根据权利要求4所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的上行授权,且所述上行授权中至少有一个上行授权包含第一种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权,或者,接收到基站发送的至少一个上行授权且所述上行授权中的所有上行授权都包含第二种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  9. 根据权利要求2所述的方法,其中,当所述第一DCI的指示为第三种指示时,确定所述PUSCH的发送方式包括:
    根据所述第一预设条件确定所述PUSCH的发送方式。
  10. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式包括:
    在所述指定TTI之前的一个时间窗内,若没有发送PUSCH,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  11. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,其中,所述第二DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  12. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第三DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  13. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述第一DCI所在的TTI之前的一个时间窗内没有收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  14. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,其中,所述第四DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  15. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第五DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号。
  16. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当所述指定TTI上包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在候选的所述DMRS时域位置上发送参考信号。
  17. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当所述指定TTI上不包含候选的DMRS时域位置时,则:
    当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述 PUSCH的发送方式包括:在所述指定TTI内不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内发送参考信号,或在所述指定TTI内不发送参考信号和数据。
  18. 根据权利要求9所述的方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当所述指定TTI上不包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号。
  19. 根据权利要求16-18任一项所述的方法,其中,候选的所述DMRS时域位置通过以下至少之一的方式指定:预定义设置、基站配置。
  20. 根据权利要求2所述的方法,其中,当所述第一DCI的指示为第四种指示时,确定所述PUSCH的发送方式包括:
    根据所述第一预设条件确定所述PUSCH的发送方式。
  21. 根据权利要求20所述方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式包括:
    当所述指定符号在第一个发送数据的符号之前时,则:
    当所述指定符号与所述第一个发送数据的符号之间的时间间隔超过第一阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号,在发送数据的符号上不发送数据;
    其中,所述第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
  22. 根据权利要求20所述方法,其中,根据所述第一预设条件确定所述PUSCH的发送方式还包括:
    当所述第一DCI所在的TTI与所述指定符号之间的时间间隔小于第二阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号且在所述发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号且在所述发送数据的符号上不发送参考符号;
    其中,所述第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
  23. 根据权利要求5-8、10-15、17任一项所述的方法,其中,所述时间窗包括以下至少之一:K1个TTI,K2个上行TTI,K3个下行TTI,K4个符号,其中,K1、K2、K3、K4均为正整数。
  24. 一种下行控制信息DCI的指示方法,包括:
    根据第二预设条件确定第六DCI的内容,其中,所述第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH(S302);
    发送确定的所述第六DCI至终端(S304)。
  25. 根据权利要求24所述的方法,其中,根据第二预设条件确定第六DCI的内容包括:当在第一时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述上行授权用于指示所述终端发送PUSCH,所述第一时间窗为所述指定TTI之前的一个时间窗;
    当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
    当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权中至少有一个上行授权指示所述终端发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上不发送参考信号。
  26. 根据权利要求24所述的方法,其中,根据第二预设条件确定第六DCI的内容包括:
    当在第二时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述第二时间窗为所述第六DCI所在的TTI之前的一个时间窗,所述上行授权用于指示所述终端发送PUSCH;
    当在第二时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号,确定所述第六DCI的内容包括:指示所 述终端在指定TTI上发送参考信号;
    当在第二时间窗内向所述终端发送了至少一个上行授权,且至少一个所述上行授权指示所述终端发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在所述指定TTI不发送参考信号。
  27. 一种物理上行共享信道PUSCH的发送装置,包括:
    第一确定模块(40),设置为根据以下至少之一确定PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
    第一发送模块(42),设置为根据确定的所述发送方式发送所述PUSCH。
  28. 根据权利要求27所述的装置,其中,所述DCI的指示包括:
    第一种指示:指示在指定传输时间间隔TTI上发送参考信号;或
    第二种指示:指示在指定TTI上不发送参考信号;或
    第三种指示:指示在指定TTI上发送PUSCH;或
    第四种指示:指示在指定符号上发送参考信号。
  29. 根据权利要求28所述的装置,其中,所述第一确定模块(40)是设置为:当所述第一DCI的指示为所述第一种指示时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  30. 根据权利要求28所述的装置,其中,所述第一确定模块(40)是设置为:当所述第一DCI的指示为第二种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所述PUSCH的发送方式。
  31. 根据权利要求30所述的装置,其中,所述第一确定模块(40)是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  32. 根据权利要求30所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式: 当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  33. 根据权利要求30所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号;当在所述第一DCI所在的TTI之前的一个时间窗内没有接收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  34. 根据权利要求28所述的装置,其中,所述第一确定模块(40)是设置为:当接收到的所述DCI的指示为第三种指示时,确定所述PUSCH的发送方式包括:
    根据所述第一预设条件确定所述PUSCH的发送方式。
  35. 根据权利要求34所述的装置,其中,所述第一确定模块(40)是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内没有发送PUSCH时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  36. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH时,则:
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第二DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号,其中,所述第二DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对 于第二DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  37. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述指定TTI之前的一个时间窗内发送了PUSCH,则:
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第三DCI为所述指定TTI之前的一个时间窗内,离所述指定TTI最近的发送的PUSCH对应的DCI;
    当在所述指定TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第三DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  38. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内没有收到基站发送的上行授权时,确定所述PUSCH的发送方式包括:在所述指定TTI上发送参考信号。
  39. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权时,则:
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,其中,所述第四DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第四DCI中的指示比特没有发生反转时,确定所述PUSCH的发 送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据。
  40. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当在所述第一DCI所在的TTI之前的一个时间窗内收到了基站发送的上行授权,则:
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特发生了反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号,或在所述指定TTI上不发送参考信号和数据,其中,所述第五DCI为在所述时间窗内接收到的最接近所述第一DCI所在的TTI的上行授权;
    当在所述第一DCI所在的TTI之前的一个时间窗内所述第一DCI中的指示比特相对于第五DCI中的指示比特没有发生反转时,确定所述PUSCH的发送方式包括:在所述指定TTI上不发送参考信号。
  41. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定TTI上包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在候选的所述DMRS时域位置上发送参考信号。
  42. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定TTI上不包含候选的DMRS时域位置时,则:
    当在所述指定TTI之前的一个时间窗内发送了参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号;当在所述指定TTI之前的一个时间窗内没有发送参考信号时,确定所述PUSCH的发送方式包括:在所述指定TTI内发送参考信号,或在所述指定TTI内不发送参考信号和数据。
  43. 根据权利要求34所述的装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式: 当所述指定TTI上不包含候选的DMRS时域位置时,确定所述PUSCH的发送方式包括:在所述指定TTI内不发送参考信号。
  44. 根据权利要求28所述装置,其中,所述第一确定模块(40)是设置为:当所述第一DCI的指示为第四种指示时,确定所述PUSCH的发送方式包括:根据所述第一预设条件确定所述PUSCH的发送方式。
  45. 根据权利要求44所述装置,其中,所述第一确定模块(40)是设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定符号在第一个发送数据的符号之前时,则:
    当所述指定符号与所述第一个发送数据的符号之间的时间间隔超过第一阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号,在发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号,在发送数据的符号上不发送数据;
    其中,所述第一阈值包括以下之一:N1个TTI,N2个上行TTI,N3个下行TTI,N4个符号,N1、N2、N3、N4均为正整数。
  46. 根据权利要求44所述装置,其中,所述第一确定模块(40)还设置为通过如下方式实现根据所述第一预设条件确定所述PUSCH的发送方式:当所述指定符号在第一个发送数据的符号之前时,当所述第一DCI所在的TTI与所述指定符号之间的时间间隔小于第二阈值时,确定所述PUSCH的发送方式包括:在所述指定符号上不发送参考信号且在所述发送数据的至少一个符号上发送参考信号;或在所述指定符号上不发送参考信号且在所述发送数据的符号上不发送参考符号;
    其中,所述第二阈值包括以下之一:M1个TTI,M2个上行TTI,M3个下行TTI,M4个符号,M1、M2、M3、M4均为正整数。
  47. 一种下行控制信息DCI的指示装置,包括:
    第二确定模块(50),设置为根据第二预设条件确定第六DCI的内容,其中,所述第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
    第二发送模块(52),设置为发送确定的所述第六DCI至终端。
  48. 根据权利要求47所述的装置,其中,所述第二确定模块(50)是设置为通过如下方式实现根据第二预设条件确定第六DCI的内容:
    当在第一时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述上行授权用于指示所述终端发送PUSCH,所述第一时间窗为所述指定TTI之前的一个时间窗;
    当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
    当在第一时间窗内向所述终端发送了至少一个上行授权,且所述上行授权中至少有一个上行授权指示所述终端发送参考信号时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上不发送参考信号。
  49. 根据权利要求47所述的装置,其中,所述第二确定模块(50)是设置为通过如下方式实现根据第二预设条件确定第六DCI的内容:
    当在第二时间窗内没有向所述终端发送上行授权时,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号,其中,所述第二时间窗为所述第六DCI所在的TTI之前的一个时间窗,所述上行授权用于指示所述终端发送PUSCH;
    若在第二时间窗内向所述终端发送了至少一个上行授权,且所述上行授权均指示所述终端不发送参考信号,确定所述第六DCI的内容包括:指示所述终端在指定TTI上发送参考信号;
    若在第二时间窗内向所述终端发送了至少一个上行授权,且至少一个所述上行授权指示所述终端发送了参考信号,确定所述第六DCI的内容包括:指示所述终端在所述指定TTI不发送参考信号。
  50. 一种终端,包括:
    第一处理器(60);
    第一存储器(62),设置为存储所述第一处理器(60)可执行的指令;
    所述第一处理器(60)设置为根据所述第一存储器(62)中存储的所述 指令执行以下操作:
    根据以下至少之一确定物理上行共享信道PUSCH的发送方式:接收到基站发送的第一下行控制信息DCI的指示、第一预设条件;
    根据确定的所述发送方式发送所述PUSCH。
  51. 根据权利要求50所述的终端,其中,所述第一DCI的指示包括:
    第一种指示:指示在指定传输时间间隔TTI上发送参考信号;或
    第二种指示:指示在指定TTI上不发送参考信号;或
    第三种指示:指示在指定TTI上发送PUSCH;或
    第四种指示:指示在指定符号上发送参考信号。
  52. 一种基站,包括:
    第二处理器(70);
    第二存储器(72),设置为存储所述第二处理器(70)可执行的指令;
    所述第二处理器(70)设置为根据所述第二存储器(72)中存储的所述指令执行以下操作:
    根据第二预设条件确定第六下行控制信DCI的内容,其中,所述第六DCI用于指示终端按照指定的发送方式发送物理上行共享信道PUSCH;
    发送确定的所述第六DCI至终端。
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