WO2022141588A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2022141588A1
WO2022141588A1 PCT/CN2020/142537 CN2020142537W WO2022141588A1 WO 2022141588 A1 WO2022141588 A1 WO 2022141588A1 CN 2020142537 W CN2020142537 W CN 2020142537W WO 2022141588 A1 WO2022141588 A1 WO 2022141588A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
transmission
time unit
retransmission
frequency domain
Prior art date
Application number
PCT/CN2020/142537
Other languages
English (en)
French (fr)
Inventor
李媛媛
Original Assignee
北京小米移动软件有限公司
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.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202211216841.7A priority Critical patent/CN115529117A/zh
Priority to PCT/CN2020/142537 priority patent/WO2022141588A1/zh
Priority to CN202080004030.3A priority patent/CN113243092B/zh
Priority to US18/270,352 priority patent/US20240106603A1/en
Publication of WO2022141588A1 publication Critical patent/WO2022141588A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communication, and in particular, to a communication method and device.
  • the terminal needs to perform coverage enhancement.
  • the method of reducing the demodulation reference signal (Demodulation Reference Signal, DMRS) density can be used for coverage enhancement.
  • DMRS demodulation Reference Signal
  • this method will bring about the problem of phase sudden change.
  • the demodulation reference signal transmitted in the previous time unit only represents the The phase change of the secondary transmission in the frequency domain cannot track the phase change caused by the transmission in the next time unit, so that the phase distortion in the transmission in the next time unit cannot be compensated, which in turn affects subsequent demodulation and reduces transmission performance.
  • the communication method, device, terminal, base station, electronic device and storage medium proposed in the present application are used to solve the problem that the phase cannot be accurately tracked when the method of reducing the density of the demodulation reference signal is used for coverage enhancement in the related art.
  • An embodiment of the first aspect of the present application proposes a communication method, which is applied to a terminal.
  • the communication method includes: configuring reference signal transmission for cross-time unit transmission or retransmission based on reference signal configuration parameters, where the reference signal is used for Phase estimation, the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the embodiment of the second aspect of the present application proposes another communication method, which is applied to a terminal.
  • the communication method includes: based on reference signal configuration parameters, for cross-time unit transmission or retransmission from a base station, receiving reference signal transmission, the The reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the embodiment of the third aspect of the present application proposes another communication method, which is applied to a base station.
  • the communication method includes: configuring reference signal transmission for cross-time unit transmission or retransmission based on reference signal configuration parameters, where the reference signal uses For phase estimation, the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the embodiment of the fourth aspect of the present application proposes another communication method, including: for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the second Signal transmissions are configured in the first symbols of the time units, respectively, and the signal transmissions are used for phase estimation.
  • the embodiment of the fifth aspect of the present application proposes another communication method, including: for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the second Signal transmissions are respectively received in the first symbol of the time unit; phase estimation is performed based on the signal transmissions.
  • the embodiment of the sixth aspect of the present application proposes a communication apparatus, which is applied to a terminal.
  • the communication apparatus includes: a first configuration module, configured to configure a reference signal based on reference signal configuration parameters for transmission or retransmission across time units
  • the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the embodiment of the seventh aspect of the present application proposes another communication apparatus, which is applied to a terminal.
  • the communication apparatus includes: a receiving module, configured to receive, based on reference signal configuration parameters, for cross-time unit transmission or retransmission from a base station, receive Reference signal transmission, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • An embodiment of the eighth aspect of the present application proposes another communication apparatus, which is applied to a base station.
  • the communication apparatus includes: a second configuration module, configured to configure parameters based on reference signals, and configure reference for transmission or retransmission across time units Signal transmission, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • An embodiment of the ninth aspect of the present application proposes another communication apparatus, including: a third configuration module configured to, for two adjacent time units in transmission or retransmission across time units, in the first time unit Signal transmissions are configured in the last symbol of and the first symbol of the second time unit, respectively, and the signal transmission is used for phase estimation.
  • An embodiment of the tenth aspect of the present application provides another communication apparatus, including: a second receiving module configured to, for two adjacent time units in transmission or retransmission across time units, in the first time unit Signal transmissions are respectively received in the last symbol of the second time unit and the first symbol of the second time unit; the estimation module is configured to perform phase estimation based on the signal transmissions.
  • An embodiment of the eleventh aspect of the present application provides a terminal, including the communication device described in the embodiment of the sixth aspect of the present application, or the communication device described in the embodiment of the seventh aspect of the present application, or the embodiment of the ninth aspect of the present application.
  • An embodiment of the twelfth aspect of the present application provides a base station, including the communication device described in the embodiment of the eighth aspect of the present application, or the communication device described in the embodiment of the ninth aspect of the present application, or the embodiment of the tenth aspect of the present application said communication device.
  • An embodiment of the thirteenth aspect of the present application provides an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores information that can be used by the at least one processor An instruction to be executed, the instruction is executed by the at least one processor, so that the at least one processor can execute the communication method described in the embodiment of the first aspect of the present application, or the embodiment of the second aspect of the present application.
  • An embodiment of the fourteenth aspect of the present application provides a computer-readable storage medium storing computer instructions, where the computer instructions are used to cause the computer to execute the communication method described in the embodiment of the first aspect of the present application, or the present application
  • the terminal configures the reference signal transmission for cross-time unit transmission or retransmission based on the reference signal configuration parameter, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation resources.
  • FIG. 1 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of another communication method provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • a base station (Base Station, BS) base station is deployed in a wireless access network to provide a wireless access function for a terminal.
  • the base station may wirelessly communicate with the terminal via one or more antennas.
  • a base station can provide communication coverage for its geographic area.
  • the base stations may include different types such as macro base stations, micro base stations, relay stations, and access points.
  • a base station may be referred to by those skilled in the art as a base station transceiver, wireless base station, access point, wireless transceiver, Basic Service Set (BSS), Extended Service Set (ESS) ), Node B (NodeB), evolved Node B (evolved NodeB, eNB or eNodeB) or some other appropriate term.
  • BSS Basic Service Set
  • ESS Extended Service Set
  • NodeB Node B
  • evolved Node B evolved Node B
  • evolved NodeB evolved NodeB
  • eNB evolved Node B
  • gNB evolved Node B
  • the terminals may be scattered in the entire mobile communication system, and each terminal may be stationary or mobile.
  • a terminal may also be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, terminal device, wireless device, wireless communication device, remote device, mobile subscriber station, access User equipment, mobile user equipment, wireless user equipment, remote user equipment, handheld device, user agent, mobile client, client, or some other appropriate term.
  • the terminal may be a cellular telephone, a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless telephone, a Wireless Local Loop (WLL) station etc., can communicate with the base station in the mobile communication system.
  • PDA Personal Digital Assistant
  • WLL Wireless Local Loop
  • FIG. 1 is a schematic flowchart of a communication method provided by an embodiment of the present application, which is executed by a terminal. As shown in FIG. 1 , the communication method includes the following steps:
  • S101 based on reference signal configuration parameters, configure reference signal transmission for cross-time unit transmission or retransmission, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission domain resources.
  • the terminal needs to perform coverage enhancement.
  • the method of reducing the demodulation reference signal (Demodulation Reference Signal, DMRS) density can be used for coverage enhancement.
  • DMRS demodulation Reference Signal
  • this method will bring about the problem of phase sudden change.
  • the demodulation reference signal transmitted in the previous time unit only represents the The phase change of the secondary transmission in the frequency domain cannot track the phase change caused by the transmission in the next time unit, so that the phase distortion in the transmission in the next time unit cannot be compensated, which in turn affects subsequent demodulation and reduces transmission performance.
  • reference signal transmission may be configured for cross-time unit transmission or retransmission (Repetition) based on reference signal configuration parameters, the reference signal is used for phase estimation, and the frequency domain resources occupied by reference signal transmission are less than the solution The frequency domain resources occupied by the DMRS transmission of the modulation reference signal. Therefore, the terminal can realize phase tracking and calibration according to the reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation , which improves the transmission performance.
  • the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the reference signal is a phase tracking reference signal (Phase Tracking Reference Signal, PT-RS).
  • Phase Tracking Reference Signal PT-RS
  • configuring the reference signal for transmission or retransmission across time units is performed in response to notification indication information from the base station.
  • the base station may send notification indication information to the terminal, and correspondingly, the terminal may, in response to the notification indication information from the base station, configure reference signals for transmission or retransmission across time units.
  • the notification indication information includes a start notification indication of a DMRS-less (reduced density of demodulation reference signal) mode. It can be understood that, the terminal may also activate the DMRS-less mode in response to the activation notification indication of the DMRS-less mode, so as to achieve coverage enhancement by reducing the density of the demodulation reference signals.
  • DMRS-less reduced density of demodulation reference signal
  • the reference signal configuration parameters are determined in at least one of the following manners: the reference signal configuration parameters are determined based on control signaling from the base station, or the reference signal configuration parameters are determined according to a communication protocol or pre-configuration.
  • the configuration parameters of the reference signal include at least one of the following parameters: time-domain density, frequency-domain density, starting time-domain offset, and starting frequency-domain offset of the reference signal.
  • the time domain density, frequency domain density, starting time domain offset and starting frequency domain offset can be set according to actual conditions.
  • the starting time domain offset of the reference signal transmission in the time unit occupied by the cross-time unit transmission or retransmission is based on the first time unit occupied by the cross-time unit transmission or retransmission in the occupied first time unit Determined by the time domain symbol
  • the starting frequency domain offset of the reference signal transmission in the time unit occupied by the cross-time unit transmission or retransmission is based on the cross-time unit transmission or retransmission in the first time unit occupied Determined by the first occupied frequency domain resource unit.
  • configuring reference signal transmission for transmission or retransmission across time units includes configuring reference signal transmission in at least part of the time unit occupied by transmission or retransmission across time units, wherein at least one time unit in the partial time unit is configured for transmission of reference signals.
  • DMRS transmissions are not included in the cell. That is to say, the reference signal transmission may be discontinuous in the time domain, which is beneficial to reduce the number of reference signals, and increases the transmission of data information, thereby improving the coverage performance.
  • configuring reference signal transmission for cross-time unit transmission or retransmission includes determining not to configure reference signal transmission for cross-time unit transmission or retransmission based on a modulation and coding policy MCS level. It can be understood that, if the current modulation and coding strategy MCS level can tolerate the phase deviation caused by cross-time unit or retransmission, it may be determined that reference signal transmission is not configured for cross-time unit transmission or retransmission. Therefore, the method can take into account the influence of the MCS level of the modulation and coding strategy on the transmission of the cross-time unit transmission or the transmission of the retransmission configuration reference signal, and is more flexible.
  • the frequency band in which the terminal operates is not limited.
  • the terminal may operate in the FR1 frequency band specified by the communication protocol.
  • the time unit includes, but is not limited to, a time slot (Slot), a transmission time interval (Transmission Time Interval, TTI), etc., which are not limited here.
  • TTI Transmission Time Interval
  • the time unit may be a time unit in an uplink physical shared channel (Physical Uplink Shared Channel, PUSCH), or a time unit in an uplink physical control channel (Physical Uplink Control Channel, PUCCH), or the like.
  • the terminal configures the reference signal transmission for cross-time unit transmission or retransmission based on the reference signal configuration parameter, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation resources.
  • FIG. 3 is a schematic flowchart of another communication method provided by an embodiment of the present application, which is executed by a terminal. As shown in Figure 3, the communication method includes the following steps:
  • the terminal may receive reference signal transmission for cross-time unit transmission or retransmission from the base station based on the reference signal configuration parameters, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than Frequency domain resources occupied by the demodulation reference signal DMRS transmission. Therefore, the terminal can realize phase tracking and calibration according to the received reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the demodulation accuracy. Correctness and improved transmission performance.
  • configuring reference signal transmission for transmission or retransmission across time units includes configuring reference signal transmission in at least part of the time unit occupied by transmission or retransmission across time units, wherein at least one time unit in the partial time unit is configured for transmission of reference signals.
  • DMRS transmissions are not included in the cell. That is to say, the reference signal transmission may be discontinuous in the time domain, which is beneficial to reduce the number of reference signals, and increases the transmission of data information, thereby improving the coverage performance.
  • the terminal receives reference signal transmission for cross-time unit transmission or retransmission from the base station based on the reference signal configuration parameters, the reference signal is used for phase estimation, and the reference signal transmission occupies less frequency domain resources The frequency domain resources occupied by the demodulation reference signal DMRS transmission. Therefore, the terminal can realize phase tracking and calibration according to the received reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the demodulation accuracy. Correctness and improved transmission performance.
  • FIG. 4 is a schematic flowchart of another communication method provided by an embodiment of the present application, which is executed by a base station. As shown in Figure 4, the communication method includes the following steps:
  • S301 based on reference signal configuration parameters, configure reference signal transmission for cross-time unit transmission or retransmission, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission domain resources.
  • the base station can configure reference signal transmission for cross-time unit transmission or retransmission based on the reference signal configuration parameter, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than that of the solution.
  • the frequency domain resources occupied by the DMRS transmission of the modulation reference signal can realize phase tracking and calibration according to the reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation , which improves the transmission performance.
  • FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of the present application, which is executed by a base station or a terminal. As shown in Figure 5, the communication method includes the following steps:
  • S401 for two adjacent time units in the transmission or retransmission across time units, configure signal transmission in the last symbol in the first time unit and the first symbol in the second time unit respectively, and the signal transmission for phase estimation.
  • the base station or the terminal may, for two adjacent time units in transmission or retransmission across time units, the last symbol in the first time unit and the first symbol in the second time unit
  • Signal transmissions are configured in the symbols respectively, and the signal transmissions are used for phase estimation. That is to say, signal transmission can be separately configured on the time domain edge symbols of two adjacent time units. Therefore, two adjacent time units are equipped with signal transmission, and their own signal transmission can be used for phase estimation respectively, which can solve the problem that the same transmission resource block (Transport Block Size, TBS) in the transmission across time units has different phases.
  • TBS Transport Block Size
  • the signal transmission is the transmission of the same service data or the demodulation reference signal DMRS transmission.
  • the base station or the terminal may, for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the first symbol in the second time unit Signal transmission is configured in one symbol, and the signal transmission is used for phase estimation. Therefore, two adjacent time units are equipped with signal transmission, and their own signal transmission can be used for phase estimation, which can solve the problem of discontinuous phase of the same transmission resource block in cross-time unit transmission, which is beneficial to ensure The correctness of the demodulation improves the transmission performance.
  • FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application, which is executed by a base station or a terminal. As shown in Figure 6, the communication method includes the following steps:
  • the signal transmission is the transmission of the same service data or the demodulation reference signal DMRS transmission.
  • the base station or the terminal may, for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the first symbol in the second time unit Signal transmissions are received separately in one symbol, and phase estimation is performed based on the signal transmissions. Therefore, two adjacent time units are equipped with signal transmission, and their own signal transmission can be used for phase estimation, which can solve the problem of discontinuous phase of the same transmission resource block in cross-time unit transmission, which is beneficial to ensure The correctness of the demodulation improves the transmission performance.
  • the present application further provides a communication device, and the communication device is applied to a terminal.
  • the implementation of the communication method is also applicable to the communication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • the communication apparatus of the embodiment of the present application is applied to a terminal, and the communication apparatus includes: a first configuration module, configured to configure reference signal transmission based on reference signal configuration parameters for transmission or retransmission across time units, the reference signal For phase estimation, the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the reference signal transmission is configured for transmission or retransmission across time units, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than that of the demodulation reference signal Frequency domain resources occupied by DMRS transmission. Therefore, the device can realize phase tracking and calibration according to the reference signal, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation. Improved transmission performance.
  • the present application further provides a communication device, and the communication device is applied to a terminal.
  • the implementation of the communication method is also applicable to the communication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • the communication apparatus of the embodiments of the present application is applied to a terminal, and the communication apparatus includes: a receiving module configured to receive reference signal transmission for cross-time unit transmission or retransmission from a base station based on a reference signal configuration parameter, the reference The signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the communication device of the embodiment of the present application receives reference signal transmission for cross-time unit transmission or retransmission from the base station, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than that of the solution.
  • the frequency domain resources occupied by the DMRS transmission of the modulation reference signal can realize phase tracking and calibration according to the received reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the demodulation accuracy. Correctness and improved transmission performance.
  • the present application further provides a communication device, and the communication device is applied to a terminal.
  • the implementation of the communication method is also applicable to the communication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • the communication apparatus of the embodiments of the present application is applied to a base station, and the communication apparatus includes: a second configuration module configured to configure reference signal transmission for cross-time unit transmission or retransmission based on reference signal configuration parameters, the reference signal For phase estimation, the frequency domain resources occupied by the reference signal transmission are less than the frequency domain resources occupied by the demodulation reference signal DMRS transmission.
  • the reference signal transmission can be configured for cross-time unit transmission or retransmission, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation reference Frequency domain resources occupied by signal DMRS transmission. Therefore, the device can realize phase tracking and calibration according to the reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation , which improves the transmission performance.
  • the present application further provides a communication device, and the communication device is applied to a terminal.
  • the implementation of the communication method is also applicable to the communication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • the communication apparatus includes: a third configuration module configured to, for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the second Signal transmissions are respectively configured in the first symbols of the time units, and the signal transmissions are used for phase estimation.
  • the communication apparatus may, for two adjacent time units in transmission or retransmission across time units, in the last symbol in the first time unit and the first symbol in the second time unit
  • the signaling is configured separately, and the signaling is used for phase estimation. Therefore, two adjacent time units are equipped with signal transmission, and their own signal transmission can be used for phase estimation, which can solve the problem of discontinuous phase of the same transmission resource block in cross-time unit transmission, which is beneficial to ensure The correctness of the demodulation improves the transmission performance.
  • the present application further provides a communication device, and the communication device is applied to a terminal.
  • the implementation of the communication method is also applicable to the communication apparatus provided in this embodiment, which will not be described in detail in this embodiment.
  • the communication apparatus includes: a second receiving module configured to, for two adjacent time units in cross-time unit transmission or retransmission, the last symbol in the first time unit and the second Signal transmissions are respectively received in the first symbols of the time units; the estimation module is configured to perform phase estimation based on the signal transmissions.
  • the communication apparatus may, for two adjacent time units in transmission or retransmission across time units, in the last symbol in the first time unit and the first symbol in the second time unit Signal transmissions are received separately, and phase estimation is performed based on the signal transmissions. Therefore, two adjacent time units are equipped with signal transmission, and their own signal transmission can be used for phase estimation, which can solve the problem of discontinuous phase of the same transmission resource block in cross-time unit transmission, which is beneficial to ensure The correctness of the demodulation improves the transmission performance.
  • the present application further provides a terminal, including the communication apparatus provided by the embodiments of the present application.
  • the terminal configures reference signal transmission for transmission or retransmission across time units based on reference signal configuration parameters, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation reference signal Frequency domain resources occupied by DMRS transmission. Therefore, the terminal can realize phase tracking and calibration according to the reference signal, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation. Improved transmission performance.
  • the present application further provides a base station, including the communication device provided by the embodiments of the present application.
  • the base station in this embodiment of the present application may configure reference signal transmission for cross-time unit transmission or retransmission based on reference signal configuration parameters, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation reference signal Frequency domain resources occupied by DMRS transmission. Therefore, the base station can realize phase tracking and calibration according to the reference signal transmission, which can solve the problem that the phase cannot be accurately tracked when the method of reducing the demodulation reference signal density is used for coverage enhancement in the related art, which is beneficial to ensure the correctness of the demodulation , which improves the transmission performance.
  • the present application further provides an electronic device and a readable storage medium.
  • FIG. 7 it is a block diagram of an electronic device according to an embodiment of the present application.
  • Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers.
  • Electronic devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices, and other similar computing devices.
  • the components shown herein, their connections and relationships, and their functions are by way of example only, and are not intended to limit implementations of the application described and/or claimed herein.
  • the electronic device includes: one or more processors 1100 , a memory 1200 , and interfaces for connecting various components, including a high-speed interface and a low-speed interface.
  • the various components are interconnected using different buses and may be mounted on a common motherboard or otherwise as desired.
  • the processor may process instructions executed within the electronic device, including instructions stored in or on memory to display graphical information of the GUI on an external input/output device, such as a display device coupled to the interface.
  • multiple processors and/or multiple buses may be used with multiple memories and multiple memories, if desired.
  • multiple electronic devices may be connected, each providing some of the necessary operations (eg, as a server array, a group of blade servers, or a multiprocessor system).
  • a processor 1100 is used as an example.
  • the memory 1200 is the non-transitory computer-readable storage medium provided by the present application.
  • the memory stores instructions executable by at least one processor, so that the at least one processor executes the communication method provided by the present application.
  • the non-transitory computer-readable storage medium of the present application stores computer instructions for causing a computer to execute the communication method provided by the present application.
  • the memory 1200 can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the communication methods in the embodiments of the present application (for example, the accompanying drawings).
  • the processor 1100 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions and modules stored in the memory 1200, ie, implements the communication methods in the above method embodiments.
  • the memory 1200 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function; the storage data area may store data created according to the use of the positioning electronic device, and the like. Additionally, memory 1200 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage device. Optionally, the memory 1200 may optionally include memory located remotely relative to the processor 1100, and these remote memories may be connected to the positioning electronic device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the electronic device may further include: an input device 1300 and an output device 1400 .
  • the processor 1100, the memory 1200, the input device 1300, and the output device 1400 may be connected through a bus or in other ways, and the connection through a bus is taken as an example in FIG. 7 .
  • the input device 1300 can receive input numerical or character information and generate key signal input related to user settings and functional control of the positioning electronic device, such as a touch screen, keypad, mouse, trackpad, touchpad, pointing stick, one or more Input devices such as mouse buttons, trackballs, joysticks, etc.
  • the output device 1400 may include a display device, auxiliary lighting devices (eg, LEDs), haptic feedback devices (eg, vibration motors), and the like.
  • the display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some implementations, the display device may be a touch screen.
  • Various implementations of the systems and techniques described herein can be implemented in digital electronic circuitry, integrated circuit systems, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpretable on a programmable system including at least one programmable processor that The processor, which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • the processor which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or apparatus for providing machine instructions and/or data to a programmable processor ( For example, magnetic disks, optical disks, memories, programmable logic devices (PLDs), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented on a computer having a display device (eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user ); and a keyboard and pointing device (eg, a mouse or trackball) through which a user can provide input to the computer.
  • a display device eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor
  • a keyboard and pointing device eg, a mouse or trackball
  • Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (eg, visual feedback, auditory feedback, or tactile feedback); and can be in any form (including acoustic input, voice input, or tactile input) to receive input from the user.
  • the systems and techniques described herein may be implemented on a computing system that includes back-end components (eg, as a data server), or a computing system that includes middleware components (eg, an application server), or a computing system that includes front-end components (eg, a user's computer having a graphical user interface or web browser through which a user may interact with implementations of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communication network). Examples of communication networks include: Local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
  • a computer system can include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other.
  • the terminal configures the reference signal transmission for cross-time unit transmission or retransmission based on the reference signal configuration parameter, the reference signal is used for phase estimation, and the frequency domain resources occupied by the reference signal transmission are less than the demodulation resources.

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Abstract

本申请提出了一种通信方法及装置，涉及通信技术领域。该方案为：基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。本申请中，终端基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。

Description

通信方法及装置 技术领域
本申请涉及通信领域，特别是指一种通信方法及装置。
背景技术
目前，随着网络技术的发展，比如，为了适应网络服务对传输速率和时延的较高要求，终端需要进行覆盖增强。相关技术中，可采用降低解调参考信号(Demodulation Reference Signal，DMRS)密度的方法进行覆盖增强，然而该方法会带来相位突变的问题，前一个时间单元中传输的解调参考信号只代表该次传输在频域上的相位变化，无法跟踪下个时间单元中传输带来的相位变化，从而导致下个时间单元中传输出现的相位畸变无法得到补偿，进而影响后续解调，传输性能下降。
发明内容
本申请提出的通信方法、装置、终端、基站、电子设备和存储介质，用于解决相关技术中采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题。
本申请第一方面实施例提出了一种通信方法，应用于终端，所述通信方法包括：基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第二方面实施例提出了另一种通信方法，应用于终端，所述通信方法包括：基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第三方面实施例提出了另一种通信方法，应用于基站，所述通信方法包括：基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第四方面实施例提出了另一种通信方法，包括：针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，所述信号传输用于进行相位估计。
本申请第五方面实施例提出了另一种通信方法，包括：针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输；基于所述信号传输进行相位估计。
本申请第六方面实施例提出了一种通信装置，应用于终端，所述通信装置包括：第一配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第七方面实施例提出了另一种通信装置，应用于终端，所述通信装置包括：接收模块，被配置为基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第八方面实施例提出了另一种通信装置，应用于基站，所述通信装置包括：第二配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请第九方面实施例提出了另一种通信装置，包括：第三配置模块，被配置为针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，所述信号传输用于进行相位估计。
本申请第十方面实施例提出了另一种通信装置，包括：第二接收模块，被配置为针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输；估计模块，被配置为基于所述信号传输进行相位估计。
本申请第十一方面实施例提出了一种终端，包括本申请第六方面实施例所述的通信装置，或者本申请第七方面实施例所述的通信装置，或者本申请第九方面实施例所述的通信装置，或者本申请第十方面实施例所述的通信装置。
本申请第十二方面实施例提出了一种基站，包括本申请第八方面实施例所述的通信装置，或者本申请第九方面实施例所述的通信装置，或者本申请第十方面实施例所述的通信装置。
本申请第十三方面实施例提出了一种电子设备，包括：至少一个处理器；以及与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行本申请第一方面实施例所述的通信方法，或者本申请第二方面实施例所述的通信方法，或者本申请第三方面实施例所述的通信方法，或者本申请第四方面实施例所述的通信方法，或者本申请第五方面实施例所述的通信方法。
本申请第十四方面实施例提出了一种存储有计算机指令的计算机可读存储介质，所述计算机指令用于使所述计算机执行本申请第一方面实施例所述的通信方法，或者本申请第二方面实施例所述的通信方法，或者本申请第三方面实施例所述的通信方法，或者本申请第四方面实施例所述的通信方法，或者本申请第五方面实施例所述的通信方法。
本申请提供的实施例，至少具有如下有益技术效果：
根据本申请实施例的通信方法，终端基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
本申请附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为本申请实施例提供的一种通信方法的流程示意图；
图2为本申请实施例提供的另一种通信方法的示意图；
图3为本申请实施例提供的另一种通信方法的流程示意图；
图4为本申请实施例提供的另一种通信方法的流程示意图；
图5为本申请实施例提供的另一种通信方法的流程示意图；
图6为本申请实施例提供的另一种通信方法的流程示意图；
图7为本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
本申请实施例中涉及基站具体描述如下：基站(Base Station，BS)基站部署在无线接入网中，为终端提供无线接入功能。基站可以经由一个或多个天线与终端进行无线通信。基站可以为其所在地理区域提供通信覆盖。所述基站可以包括宏基站，微基站，中继站，接入点等不同类型。在一些实施例中，基站可以被本领域技术人员称为基站收发机、无线基站、接入点、无线收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、节点B(NodeB)、演进的节点B(evolved NodeB，eNB或eNodeB)或者其它一些适当的术语。示例性地，在5G系统中，基站被称为gNB。为方便描述，本申请实施例中，上述为终端提供无线通信功能的装置统称为基站。
本申请实施例中涉及终端具体描述如下：终端可以散布于整个移动通信系统中，并且每个终端可以是静止的或者移动的。终端还可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、终端设备、无线设备、无线通信设备、远程设备、移动用户站、接入用户设备、移动用户设备、无线用户设备、远程用户设备、手持设备、用户代理、移动客户端、客户端或者一些其它适当的术语。终端可以是蜂窝电话、个人数字助理(Personal Digital Assistant，PDA)、无线调制解调器、无线通信设备、手持设备、平板电脑、膝上型计算机、无绳电话、无线本地环路(Wireless Local Loop，WLL)站等，能够与移动通信系统中的基站进行通信。
图1为本申请实施例提供的一种通信方法的流程示意图，由终端执行，如图1所示，该通信方法包括以下步骤：
S101，基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
目前，随着网络技术的发展，比如，为了适应网络服务对传输速率和时延的较高要求，终端需要进 行覆盖增强。相关技术中，可采用降低解调参考信号(Demodulation Reference Signal，DMRS)密度的方法进行覆盖增强，然而该方法会带来相位突变的问题，前一个时间单元中传输的解调参考信号只代表该次传输在频域上的相位变化，无法跟踪下个时间单元中传输带来的相位变化，从而导致下个时间单元中传输出现的相位畸变无法得到补偿，进而影响后续解调，传输性能下降。
本申请的实施例中，可基于参考信号配置参数，针对跨时间单元传输或重传(Repetition)来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
例如，如图2所示，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
可选的，参考信号是相位追踪参考信号(Phase Tracking Reference Signal，PT-RS)。
可选的，针对跨时间单元传输或重传来配置参考信号是响应于来自基站的通知指示信息来执行的。可以理解的是，基站可向终端发送通知指示信息，相应的，终端可响应于来自基站的通知指示信息，针对跨时间单元传输或重传来配置参考信号。
其中，通知指示信息包括DMRS-less(降低解调参考信号的密度)模式的启动通知指示。可以理解的是，终端还可响应于DMRS-less模式的启动通知指示，启动于DMRS-less模式，以通过降低解调参考信号的密度来实现覆盖增强。
可选的，参考信号配置参数是通过以下方式中的至少一种确定的：基于来自基站的控制信令来确定参考信号配置参数，或者根据通信协议或预配置来确定参考信号配置参数。
可选的，参考信号的配置参数包括以下参数中的至少一种：参考信号的时域密度、频域密度、起始时域偏置和起始频域偏置。
可以理解的是，时域密度、频域密度、起始时域偏置和起始频域偏置均可根据实际情况进行设置。例如，在跨时间单元传输或重传所占用的时间单元中参考信号传输的起始时域偏置是基于跨时间单元传输或重传在所占用的第一个时间单元中占用的第一个时域符号来确定的，在跨时间单元传输或重传所占用的时间单元中参考信号传输的起始频域偏置是基于跨时间单元传输或重传在所占用的第一个时间单元中占用的第一个频域资源单元来确定的。
可选的，针对跨时间单元传输或重传来配置参考信号传输包括在跨时间单元传输或重传所占用的至少部分时间单元内，配置参考信号传输，其中，部分时间单元中的至少一个时间单元中不包括DMRS传输。也就是说，参考信号传输在时域上可以不连续，有利于减少参考信号的数量，增加了数据信息的传输从而可提高覆盖性能。
可选的，针对跨时间单元传输或重传来配置参考信号传输包括基于调制编码策略MCS等级，确定针对跨时间单元传输或重传不配置参考信号传输。可以理解的是，若当前的调制编码策略MCS等级能够容忍跨时间单元或重传带来的相位偏差，可以确定针对跨时间单元传输或重传不配置参考信号传输。由此，该方法可考虑到调制编码策略MCS等级对跨时间单元传输或重传配置参考信号传输的影响，较为灵活。
需要说明的是，本申请的实施例中，对终端工作的频段不做限定，例如，终端可工作于通信协议所规定的FR1频段。另外，时间单元包括但不限于时隙(Slot)、传输时间间隔(Transmission Time Interval，TTI)等，这里不做过多限定。另外，对时间单元所处信道的类型也不做限制。例如，时间单元可为上行物理共享信道(Physical Uplink Shared Channel，PUSCH)内的时间单元，还可为上行物理控制信道(Physical Uplink Control Channel，PUCCH)内的时间单元等。
根据本申请实施例的通信方法，终端基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
图3为本申请实施例提供的另一种通信方法的流程示意图，由终端执行。如图3所示，该通信方法包括以下步骤：
S201，基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输,参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请的实施例中，终端可基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收 参考信号传输,参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据接收的参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
可选的，针对跨时间单元传输或重传来配置参考信号传输包括在跨时间单元传输或重传所占用的至少部分时间单元内，配置参考信号传输，其中，部分时间单元中的至少一个时间单元中不包括DMRS传输。也就是说，参考信号传输在时域上可以不连续，有利于减少参考信号的数量，增加了数据信息的传输从而可提高覆盖性能。
根据本申请实施例的通信方法，终端基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输,参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据接收的参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
图4为本申请实施例提供的另一种通信方法的流程示意图，由基站执行。如图4所示，该通信方法包括以下步骤：
S301，基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
根据本申请实施例的通信方法，基站可基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，基站可根据参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
图5为本申请实施例提供的另一种通信方法的流程示意图，由基站或者终端执行。如图5所示，该通信方法包括以下步骤：
S401，针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，信号传输用于进行相位估计。
本申请的实施例中，基站或者终端可针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，信号传输用于进行相位估计。也就是说，可在相邻的两个时间单元的时域边缘符号上分别配置信号传输。由此，相邻的两个时间单元上均配置有信号传输，可分别利用自身的信号传输进行相位估计，能够解决跨时间单元传输中，同一个传输资源块(Transport Block Size，TBS)相位不连续的问题，有利于保证解调的正确性，提升了传输性能。
可选的，信号传输为针对相同的业务数据的传输或解调参考信号DMRS传输。
根据本申请实施例的通信方法，基站或者终端可针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，信号传输用于进行相位估计。由此，相邻的两个时间单元上均配置有信号传输，可分别利用自身的信号传输进行相位估计，能够解决跨时间单元传输中，同一个传输资源块相位不连续的问题，有利于保证解调的正确性，提升了传输性能。
图6为本申请实施例提供的另一种通信方法的流程示意图，由基站或者终端执行。如图6所示，该通信方法包括以下步骤：
S501，针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输。
S502，基于信号传输进行相位估计。
可选的，信号传输为针对相同的业务数据的传输或解调参考信号DMRS传输。
根据本申请实施例的通信方法，基站或者终端可针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输，并基于信号传输进行相位估计。由此，相邻的两个时间单元上均配置有信号传输，可分别利用自身的信号传输进行相位估计，能够解决跨时间单元传输中，同一个传输资源块相位不连续的问题，有利于保证解调的正确性，提升了传输性能。
与上述几种实施例提供的通信方法相对应，本申请还提供一种通信装置，所述通信装置应用于终端，由于本申请实施例提供的通信装置与上述图1实施例提供的通信方法相对应，因此通信方法的实施方式也适用于本实施例提供的通信装置，在本实施例中不再详细描述。
本申请实施例的通信装置，应用于终端，所述通信装置包括：第一配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请实施例的通信装置，基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，装置可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
与上述几种实施例提供的通信方法相对应，本申请还提供一种通信装置，所述通信装置应用于终端，由于本申请实施例提供的通信装置与上述图3实施例提供的通信方法相对应，因此通信方法的实施方式也适用于本实施例提供的通信装置，在本实施例中不再详细描述。
本申请实施例的通信装置，应用于终端，所述通信装置包括：接收模块，被配置为基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请实施例的通信装置，基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输,参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，装置可根据接收的参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
与上述几种实施例提供的通信方法相对应，本申请还提供一种通信装置，所述通信装置应用于终端，由于本申请实施例提供的通信装置与上述图4实施例提供的通信方法相对应，因此通信方法的实施方式也适用于本实施例提供的通信装置，在本实施例中不再详细描述。
本申请实施例的通信装置，应用于基站，所述通信装置包括：第二配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
本申请实施例的通信装置，可基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，装置可根据参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
与上述几种实施例提供的通信方法相对应，本申请还提供一种通信装置，所述通信装置应用于终端，由于本申请实施例提供的通信装置与上述图5实施例提供的通信方法相对应，因此通信方法的实施方式也适用于本实施例提供的通信装置，在本实施例中不再详细描述。
本申请实施例的通信装置，包括：第三配置模块，被配置为针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，所述信号传输用于进行相位估计。
本申请实施例的通信装置，可针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，信号传输用于进行相位估计。由此，相邻的两个时间单元上均配置有信号传输，可分别利用自身的信号传输进行相位估计，能够解决跨时间单元传输中，同一个传输资源块相位不连续的问题，有利于保证解调的正确性，提升了传输性能。
与上述几种实施例提供的通信方法相对应，本申请还提供一种通信装置，所述通信装置应用于终端，由于本申请实施例提供的通信装置与上述图6实施例提供的通信方法相对应，因此通信方法的实施方式也适用于本实施例提供的通信装置，在本实施例中不再详细描述。
本申请实施例的通信装置，包括：第二接收模块，被配置为针对在跨时间单元传输或重传中的相邻 两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输；估计模块，被配置为基于所述信号传输进行相位估计。
本申请实施例的通信装置，可针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输，并基于信号传输进行相位估计。由此，相邻的两个时间单元上均配置有信号传输，可分别利用自身的信号传输进行相位估计，能够解决跨时间单元传输中，同一个传输资源块相位不连续的问题，有利于保证解调的正确性，提升了传输性能。
根据本申请的实施例，本申请还提供了一种终端，包括本申请实施例提供的通信装置。
本申请实施例的终端，终端基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
根据本申请的实施例，本申请还提供了一种基站，包括本申请实施例提供的通信装置。
本申请实施例的基站，可基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，基站可根据参考信号传输实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
根据本申请的实施例，本申请还提供了一种电子设备和一种可读存储介质。
如图7所示，是根据本申请实施例的电子设备的框图。电子设备旨在表示各种形式的数字计算机，诸如，膝上型计算机、台式计算机、工作台、个人数字助理、服务器、刀片式服务器、大型计算机、和其它适合的计算机。电子设备还可以表示各种形式的移动装置，诸如，个人数字处理、蜂窝电话、智能电话、可穿戴设备和其它类似的计算装置。本文所示的部件、它们的连接和关系、以及它们的功能仅仅作为示例，并且不意在限制本文中描述的和/或者要求的本申请的实现。
如图7所示，该电子设备包括：一个或多个处理器1100、存储器1200，以及用于连接各部件的接口，包括高速接口和低速接口。各个部件利用不同的总线互相连接，并且可以被安装在公共主板上或者根据需要以其它方式安装。处理器可以对在电子设备内执行的指令进行处理，包括存储在存储器中或者存储器上以在外部输入/输出装置(诸如，耦合至接口的显示设备)上显示GUI的图形信息的指令。在其它实施方式中，若需要，可以将多个处理器和/或多条总线与多个存储器和多个存储器一起使用。同样，可以连接多个电子设备，各个设备提供部分必要的操作(例如，作为服务器阵列、一组刀片式服务器、或者多处理器系统)。图7中以一个处理器1100为例。
存储器1200即为本申请所提供的非瞬时计算机可读存储介质。其中，所述存储器存储有可由至少一个处理器执行的指令，以使所述至少一个处理器执行本申请所提供的通信方法。本申请的非瞬时计算机可读存储介质存储计算机指令，该计算机指令用于使计算机执行本申请所提供的通信方法。
存储器1200作为一种非瞬时计算机可读存储介质，可用于存储非瞬时软件程序、非瞬时计算机可执行程序以及模块，如本申请实施例中的通信方法对应的程序指令/模块(例如，附图4所示的第一配置模块110)。处理器1100通过运行存储在存储器1200中的非瞬时软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例中的通信方法。
存储器1200可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据定位电子设备的使用所创建的数据等。此外，存储器1200可以包括高速随机存取存储器，还可以包括非瞬时存储器，例如至少一个磁盘存储器件、闪存器件、或其他非瞬时固态存储器件。可选地，存储器1200可选包括相对于处理器1100远程设置的存储器，这些远程存储器可以通过网络连接至定位电子设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
电子设备还可以包括：输入装置1300和输出装置1400。处理器1100、存储器1200、输入装置1300和输出装置1400可以通过总线或者其他方式连接，图7中以通过总线连接为例。
输入装置1300可接收输入的数字或字符信息，以及产生与定位电子设备的用户设置以及功能控制有关的键信号输入，例如触摸屏、小键盘、鼠标、轨迹板、触摸板、指示杆、一个或者多个鼠标按钮、 轨迹球、操纵杆等输入装置。输出装置1400可以包括显示设备、辅助照明装置(例如，LED)和触觉反馈装置(例如，振动电机)等。该显示设备可以包括但不限于，液晶显示器(LCD)、发光二极管(LED)显示器和等离子体显示器。在一些实施方式中，显示设备可以是触摸屏。
此处描述的系统和技术的各种实施方式可以在数字电子电路系统、集成电路系统、专用ASIC(专用集成电路)、计算机硬件、固件、软件、和/或它们的组合中实现。这些各种实施方式可以包括：实施在一个或者多个计算机程序中，该一个或者多个计算机程序可在包括至少一个可编程处理器的可编程系统上执行和/或解释，该可编程处理器可以是专用或者通用可编程处理器，可以从存储系统、至少一个输入装置、和至少一个输出装置接收数据和指令，并且将数据和指令传输至该存储系统、该至少一个输入装置、和该至少一个输出装置。
这些计算程序(也称作程序、软件、软件应用、或者代码)包括可编程处理器的机器指令，并且可以利用高级过程和/或面向对象的编程语言、和/或汇编/机器语言来实施这些计算程序。如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
为了提供与用户的交互，可以在计算机上实施此处描述的系统和技术，该计算机具有：用于向用户显示信息的显示装置(例如，CRT(阴极射线管)或者LCD(液晶显示器)监视器)；以及键盘和指向装置(例如，鼠标或者轨迹球)，用户可以通过该键盘和该指向装置来将输入提供给计算机。其它种类的装置还可以用于提供与用户的交互；例如，提供给用户的反馈可以是任何形式的传感反馈(例如，视觉反馈、听觉反馈、或者触觉反馈)；并且可以用任何形式(包括声输入、语音输入或者、触觉输入)来接收来自用户的输入。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
根据本申请实施例的通信方法，终端基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，参考信号用于相位估计，参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。由此，终端可根据参考信号实现相位跟踪及校准，能够解决相关技术中，采用降低解调参考信号密度的方法进行覆盖增强时，无法准确跟踪相位的问题，有利于保证解调的正确性，提升了传输性能。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本发申请中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本申请公开的技术方案所期望的结果，本文在此不进行限制。

Claims (27)

  1. 一种通信方法，其特征在于，应用于终端，所述通信方法包括：
    基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  2. 根据权利要求1所述的方法，其中，所述参考信号配置参数是通过以下方式中的至少一种确定的：
    基于来自基站的控制信令来确定所述参考信号配置参数；
    根据通信协议或预配置来确定所述参考信号配置参数。
  3. 根据权利要求1所述的方法，其中，所述终端工作于通信协议所规定的FR1频段。
  4. 根据权利要求1所述的方法，其中，所述参考信号是相位追踪参考信号PT-RS。
  5. 根据权利要求1所述的方法，其中，所述针对跨时间单元传输或重传来配置参考信号是响应于来自基站的通知指示信息来执行的。
  6. 根据权利要求5所述的方法，其中，所述通知指示信息包括DMRS-less模式的启动通知指示。
  7. 根据权利要求1或5所述的方法，其中，所述针对跨时间单元传输或重传来配置参考信号传输包括：
    在跨时间单元传输或重传所占用的至少部分时间单元内，配置所述参考信号传输，其中，所述部分时间单元中的至少一个时间单元中不包括DMRS传输。
  8. 根据权利要求7所述的方法，其中，所述针对跨时间单元传输或重传来配置参考信号传输包括：基于调制编码策略MCS等级，确定针对跨时间单元传输或重传不配置所述参考信号传输。
  9. 根据权利要求1所述的通信方法，其中，所述参考信号的配置参数包括以下参数中的至少一种：
    所述参考信号的时域密度、频域密度、起始时域偏置和起始频域偏置。
  10. 根据权利要求9所述的通信方法，其中，在所述跨时间单元传输或重传所占用的时间单元中所述参考信号传输的所述起始时域偏置是基于所述跨时间单元传输或重传在所占用的第一个时间单元中占用的第一个时域符号来确定的。
  11. 根据权利要求9所述的通信方法，其中，在所述跨时间单元传输或重传所占用的时间单元中所述参考信号传输的所述起始频域偏置是基于所述跨时间单元传输或重传在所占用的第一个时间单元中占用的第一个频域资源单元来确定的。
  12. 一种通信方法，其特征在于，应用于终端，所述通信方法包括：
    基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  13. 根据权利要求12所述的方法，其中，所述针对跨时间单元传输或重传来配置参考信号传输包括：
    在跨时间单元传输或重传所占用的至少部分时间单元内，配置所述参考信号传输，其中，所述部分时间单元中的至少一个时间单元中不包括DMRS传输。
  14. 一种通信方法，其特征在于，应用于基站，所述通信方法包括：
    基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  15. 一种通信方法，包括：
    针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二 个时间单元的第一个符号中分别配置信号传输，所述信号传输用于进行相位估计。
  16. 根据权利要求15所述的方法，其中，所述信号传输为针对相同的业务数据的传输或解调参考信号DMRS传输。
  17. 一种通信方法，包括：
    针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输；
    基于所述信号传输进行相位估计。
  18. 根据权利要求17所述的方法，其中，所述信号传输为针对相同的业务数据的传输或解调参考信号DMRS传输。
  19. 一种通信装置，其特征在于，应用于终端，所述通信装置包括：
    第一配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  20. 一种通信装置，其特征在于，应用于终端，所述通信装置包括：
    接收模块，被配置为基于参考信号配置参数，针对来自基站的跨时间单元传输或重传，接收参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  21. 一种通信装置，其特征在于，应用于基站，所述通信装置包括：
    第二配置模块，被配置为基于参考信号配置参数，针对跨时间单元传输或重传来配置参考信号传输，所述参考信号用于相位估计，所述参考信号传输所占用的频域资源少于解调参考信号DMRS传输所占用的频域资源。
  22. 一种通信装置，包括：
    第三配置模块，被配置为针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别配置信号传输，所述信号传输用于进行相位估计。
  23. 一种通信装置，包括：
    第二接收模块，被配置为针对在跨时间单元传输或重传中的相邻两个时间单元，在第一个时间单元中的最后一个符号和第二个时间单元的第一个符号中分别接收信号传输；
    估计模块，被配置为基于所述信号传输进行相位估计。
  24. 一种终端，其特征在于，包括：如权利要求19所述的通信装置，或者如权利要求20所述的通信装置，或者如权利要求22所述的通信装置，或者如权利要求23所述的通信装置。
  25. 一种基站，其特征在于，包括：如权利要求21所述的通信装置，或者如权利要求22所述的通信装置，或者如权利要求23所述的通信装置。
  26. 一种电子设备，其特征在于，包括：
    至少一个处理器；以及
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1-11中任一项所述的通信方法，或者如权利要求12-13任一项所述的通信方法，或者如权利要求14所述的通信方法，或者如权利要求15-16任一项所述的通信方法，或者如权利要求17-18任一项所述的通信方法。
  27. 一种存储有计算机指令的计算机可读存储介质，其特征在于，所述计算机指令用于使所述计算机执行如权利要求1-11中任一项所述的通信方法，或者如权利要求12-13任一项所述的通信方法，或者 如权利要求14所述的通信方法，或者如权利要求15-16任一项所述的通信方法，或者如权利要求17-18任一项所述的通信方法。
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