WO2022267604A1 - 信道检测的方法和装置 - Google Patents

信道检测的方法和装置 Download PDF

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Publication number
WO2022267604A1
WO2022267604A1 PCT/CN2022/084573 CN2022084573W WO2022267604A1 WO 2022267604 A1 WO2022267604 A1 WO 2022267604A1 CN 2022084573 W CN2022084573 W CN 2022084573W WO 2022267604 A1 WO2022267604 A1 WO 2022267604A1
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Prior art keywords
channel
time unit
dmrs
signal
symbol
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PCT/CN2022/084573
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English (en)
French (fr)
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刘云
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • H04L5/0078—Timing of allocation

Definitions

  • the present application relates to the communication field, and more specifically, to a method and device for channel detection.
  • the communication system there are downlink transmission from base station to user equipment (UE) and uplink transmission from UE to base station.
  • the coverage of downlink transmission is generally higher than that of uplink transmission. Therefore, the research on coverage enhancement mainly focuses on How to improve the coverage of uplink transmission.
  • Uplink transmission generally includes physical uplink control channel (physical uplink control channel, PUCCH) and physical uplink shared channel (physical uplink shared channel, PUSCH), among them, PUCCH belongs to the control channel, the coverage is relatively wide, PUSCH belongs to the data channel, transmits information The volume is large and the coverage area is relatively close. On both the PUCCH and PUSCH channels, there are resource locations for demodulation reference signals (demodulation reference signal, DMRS).
  • demodulation reference signal demodulation reference signal
  • One solution to enhance the channel coverage of PUSCH and PUCCH is to increase repetition, and achieve the effect of channel enhancement through more repetitions in the time domain. While repeating in the time domain, when the DMRS carried by each repetition is in the same frequency domain position, the DMRS signals in each repetition can be combined to perform joint channel estimation. At present, in the standard discussion, it is expected to use DMRS on two channels for joint channel estimation or DMRS on two repetitions of one channel for joint channel estimation, so as to improve the coverage. However, in practical applications, there will be other uplink transmissions between the two channels used for coverage enhancement.
  • the present application provides a method and device for channel detection, which can improve the reliability of channel detection.
  • a method for channel detection is provided, and the method may be executed by a terminal device or a chip or a chip system on the terminal side.
  • the method includes: the terminal equipment sends the first demodulation reference signal DMRS to the network equipment in the first time unit where the first channel is located; the terminal equipment cancels at least one first symbol in the second time unit to the network equipment Sending a second signal, the second time unit is after the first time unit and the second time unit is continuous with the first time unit; or, the terminal device determines that at the second time At least one second symbol in the unit sends a fourth signal to the network device, the fourth signal is determined according to the first DMRS; the terminal device sends the fourth signal to the network device at the third time unit where the third channel is located
  • the network device sends a second DMRS, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the third time unit is continuous with the second time unit of.
  • the terminal device sends the first DMRS to the network device at the first time unit of the first channel, and sends the second DMRS to the network device at the third time unit of the third channel; the terminal device cancels the first DMRS at the first time unit.
  • At least one first symbol in a second time unit between the time unit and the third time unit sends a second signal to the network device, or, the terminal device at the second time between the first time unit and the third time unit At least one second symbol in the unit sends a fourth signal to the network device, the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, and/or, the power of the fourth signal is the same as that of the first time unit
  • the power difference of a DMRS is less than or equal to the third preset value; the continuity of the phase and amplitude of the first DMRS and the second DMRS can be guaranteed, thereby improving the reliability of channel detection.
  • the terminal device canceling at least one first symbol in the second time unit to send the second signal to the network device includes: the terminal device canceling Sending the second signal to the network device every first symbol in the second time unit.
  • the terminal device canceling at least one first symbol in the second time unit to send the second signal to the network device includes: the terminal device canceling Each first symbol in the N symbols in the second time unit sends the second signal to the network device, the N symbols are consecutive, and the last of the N symbols The symbols are continuous with the first symbol in the third time unit, where the second time unit includes M symbols, M is greater than N, and N and M are positive integers.
  • the N is determined by the terminal device according to its own capability information, or the N is a parameter configured by the terminal device according to the network device Information is determined.
  • no uplink transmission is performed on the N symbols before the third time unit, so that the terminal equipment can perform local oscillator retuning on these symbols, so that the second DMRS sent at the third time unit is consistent with the first A DMRS phase and amplitude maintain continuity.
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the second channel when the terminal device cancels sending a second signal to the network device in at least one first symbol in a second time unit, the second channel is located in the In a second time unit, the second channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the method further includes: the terminal device sends the uplink information to be carried on the PUCCH on the first channel and/or the third channel Control Information UCI.
  • the format adopted by the second channel is PUCCH format 0, PUCCH format 1, or PUCCH format 2.
  • the first channel and the third channel are PUCCH
  • the format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH Format 4.
  • the second signal and/or the fourth signal is a sounding reference signal SRS, and/or the terminal device cancels the When at least one first symbol of the at least one first symbol sends the second signal to the network device, the priorities of the first channel and the third channel are higher than a first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to the first A preset value, the amplitude difference between the first DMRS and the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, and includes: the physical resource block occupied by the at least one second symbol and the first The physical resource blocks occupied by the time unit satisfy a first preset condition, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, or The magnitudes are the same; the second preset condition includes that the difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different Channel.
  • a method for channel detection is provided, and the method may be executed by a network device or a chip or a chip system on the network device side.
  • the method includes: the network device receives the first demodulation reference signal DMRS sent by the terminal device at the first time unit where the first channel is located; the network device cancels at least one first symbol in the second time unit to receive the second signal , the second time unit is after the first time unit and the second time unit is continuous with the first time unit; or, the network device is in at least one of the second time units
  • the second symbol receives the fourth signal sent by the terminal device, the fourth signal is determined according to the first DMRS; the network device receives the signal sent by the terminal device at the third time unit where the third channel is located
  • the second DMRS, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the third time unit is continuous with the second time unit;
  • the network device performs channel detection according to the first DMRS and the second DMRS.
  • the network device receives the first DMRS sent by the terminal device at the first time unit where the first channel is located, and receives the second DMRS sent by the terminal device at the third time unit where the third channel is located; At least one first symbol in the second time unit between the first time unit and the third time unit receives the second signal, or the network device is in the second time unit between the first time unit and the third time unit.
  • the fourth signal sent by the terminal device is received by at least one second symbol, the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, and/or the power of the fourth signal is the same as that of the first time unit
  • the power difference of the DMRS is less than or equal to the third preset value; the phase and amplitude of the first DMRS and the second DMRS have continuity, so the reliability of channel detection can be improved.
  • canceling, by the network device, receiving the second signal in at least one first symbol in the second time unit includes: canceling by the network device in the second time unit Each first symbol in receives the second signal.
  • canceling, by the network device, receiving the second signal in at least one first symbol in the second time unit includes: canceling by the network device in the second time unit
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the second channel when the network device cancels receiving the second signal in at least one first symbol in the second time unit, the second channel is located in the second time unit, The second channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the network device receives, on the first channel and/or the third channel, the uplink control information UCI to be carried on the PUCCH.
  • the format of the second channel is PUCCH format 0, PUCCH format 1, or PUCCH format 2.
  • the first channel and the third channel are PUCCH
  • the format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH Format 4.
  • the second signal and/or the fourth signal is a sounding reference signal SRS, and/or, the network device cancels the When at least one of the first symbols receives the second signal, the priorities of the first channel and the third channel are higher than a first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to the first A preset value, the amplitude difference between the first DMRS and the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, including: the physical resource block occupied by the at least one second symbol and the first The physical resource blocks occupied by the time unit satisfy a first preset condition, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, or The magnitudes are the same; the second preset condition includes that the difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different Channel.
  • a communication device including: a sending unit, configured to send a first demodulation reference signal DMRS to a network device at a first time unit where the first channel is located; a determining unit, configured to cancel the DMRS at a second time unit At least one first symbol in sends a second signal to the network device, the second time unit is after the first time unit and the second time unit is continuous with the first time unit; or , used to determine that at least one second symbol in the second time unit sends a fourth signal to the network device, the fourth signal is determined according to the first DMRS; the sending unit is also used to , sending a second DMRS to the network device at a third time unit where the third channel is located, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the The third time unit is continuous with the second time unit.
  • the determining unit is specifically configured to cancel each first symbol in the second time unit and send the second signal to the network device .
  • the determining unit is specifically configured to cancel sending of each first symbol in the N symbols in the second time unit to the network device
  • the N symbols are continuous
  • the last symbol of the N symbols is continuous with the first symbol in the third time unit, wherein the second time
  • the unit includes M symbols, M is greater than N, and N and M are positive integers.
  • the N is determined by the terminal device according to its own capability information, or the N is a parameter configured by the terminal device according to the network device Information is determined.
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the determining unit is configured to cancel when at least one first symbol in the second time unit sends the second signal to the network device, the second channel is located at In the second time unit, the second channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the sending unit is further configured to send the uplink control information to be carried on the PUCCH on the first channel and/or the third channel UCI.
  • the format of the second channel is PUCCH format 0, PUCCH format 1, or PUCCH format 2.
  • the first channel and the third channel are PUCCH
  • the format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH Format 4.
  • the second signal and/or the fourth signal is a sounding reference signal SRS, and/or the determining unit is configured to cancel the When at least one first symbol in a unit sends a second signal to the network device, the priorities of the first channel and the third channel are higher than a first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to the first A preset value, the amplitude difference between the first DMRS and the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, including: the physical resource block occupied by the at least one second symbol and the first The physical resource blocks occupied by the time unit satisfy a first preset condition, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, or The magnitudes are the same; the second preset condition includes that the difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different Channel.
  • a communication device including: a receiving unit, configured to receive a first demodulation reference signal DMRS sent by a terminal device at a first time unit where the first channel is located; a determining unit, configured to cancel the DMRS at a second time unit At least one first symbol in the unit receives a second signal, the second time unit is after the first time unit and the second time unit is continuous with the first time unit; or, used to determine At least one second symbol in the second time unit receives a fourth signal sent by the terminal device, the fourth signal is determined according to the first DMRS; the receiving unit is further configured to, The third time unit where the three channels are located receives the second DMRS sent by the terminal device, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the first DMRS is The three time units are continuous with the second time unit; a processing unit is configured to perform channel detection according to the first DMRS and the second DMRS.
  • the determining unit is specifically configured to cancel receiving the second signal at each first symbol in the second time unit.
  • the determining unit is specifically configured to cancel the reception of the second signal by each first symbol in the N symbols in the second time unit, the N symbols are continuous, and the last symbol of the N symbols is continuous with the first symbol in the third time unit, wherein the second time unit includes M symbols, and M is greater than N, N and M are positive integers.
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the determining unit is configured to cancel when at least one first symbol in the second time unit receives the second signal, the second channel is located at the second time
  • the second channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the receiving unit is further configured to receive, on the first channel and/or the third channel, the uplink control information to be carried on the PUCCH UCI.
  • the format of the second channel is PUCCH format 0, PUCCH format 1, or PUCCH format 2.
  • the first channel and the third channel are PUCCHs
  • the format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH Format 4.
  • the second signal and/or the fourth signal is a sounding reference signal SRS, and/or the determining unit is configured to cancel the When at least one first symbol in the unit receives the second signal, the priorities of the first channel and the third channel are higher than a first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to the first A preset value, the amplitude difference between the first DMRS and the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, including: the physical resource block occupied by the at least one second symbol and the first The physical resource blocks occupied by the time unit satisfy a first preset condition, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit, or The magnitudes are the same; the second preset condition includes that the difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different Channel.
  • a communication device including: a processor and a transceiver, the transceiver is used to receive computer codes or instructions and transmit them to the processor, and the processor runs the computer codes or instructions, such as The method in the first aspect or any possible implementation of the first aspect.
  • a communication device including: a processor and a transceiver, the transceiver is used to receive computer codes or instructions and transmit them to the processor, and the processor runs the computer codes or instructions, such as The second aspect or the method in any possible implementation of the second aspect.
  • a computer-readable storage medium stores a computer program; when the computer program runs on a computer, the computer executes any one of the above-mentioned first aspect and the first aspect Methods in Possible Implementations.
  • a computer-readable storage medium stores a computer program; when the computer program runs on a computer, the computer executes any one of the above-mentioned second aspect and the second aspect Methods in Possible Implementations.
  • a computer program product including instructions is provided, and when the instructions are executed by a computer, the communication device implements the above first aspect and the method in any possible implementation manner of the first aspect.
  • a computer program product including instructions is provided, and when the instructions are executed by a computer, the communication device implements the method in the above-mentioned second aspect and any possible implementation manner of the second aspect.
  • FIG. 1 is a schematic diagram of transmission between a UE and a base station.
  • FIG. 2 is a schematic diagram of unoccupied symbols existing between channel 1 and channel 2 .
  • Fig. 3 is a schematic flowchart of a method for channel detection proposed by an embodiment of the present application.
  • Fig. 4 is a schematic diagram of canceling each first symbol in a second time unit to send a second signal to a network device.
  • Fig. 5 is another schematic diagram of canceling sending a second signal to a network device for each first symbol in a second time unit.
  • Fig. 6 is a schematic diagram of canceling each first symbol in N symbols in a second time unit to send a second signal to a network device.
  • Fig. 7 is another schematic diagram of canceling each first symbol in N symbols in a second time unit to send a second signal to a network device.
  • Fig. 8 is a schematic diagram of canceling at least one first symbol in a second time unit and sending a second signal to a network device.
  • FIG. 9 is a schematic flowchart of another channel detection method proposed by the embodiment of the present application.
  • Fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 11 is a schematic block diagram of another communication device according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • the embodiments of the present application can be applied to various communication systems, such as a wireless local area network system (wireless local area network, WLAN), a narrowband Internet of Things system (narrow band-internet of things, NB-IoT), a global system for mobile communications (global system for mobile communications, GSM), enhanced data rate for GSM evolution system (enhanced data rate for gsm evolution, EDGE), wideband code division multiple access system (wideband code division multiple access, WCDMA), code division multiple access 2000 system (code division multiple access, CDMA2000), time division-synchronization code division multiple access system (time division-synchronization code division multiple access, TD-SCDMA), long term evolution system (long term evolution, LTE), satellite communication, fifth generation (5th generation, 5G) systems or new communication systems that will appear in the future.
  • WLAN wireless local area network
  • NB-IoT narrowband Internet of Things system
  • GSM global system for mobile communications
  • GSM global system for mobile communications
  • enhanced data rate for GSM evolution system enhanced data rate for
  • a communication system applicable to this application includes one or more sending ends and one or more receiving ends.
  • the signal transmission between the sending end and the receiving end may be transmitted through radio waves, or may be transmitted through transmission media such as visible light, laser, infrared, and optical fiber.
  • one of the sending end and the receiving end may be a terminal device, and the other may be a network device.
  • both the sending end and the receiving end may be terminal devices.
  • the terminal devices involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems.
  • the terminal can be a mobile station (mobile station, MS), a subscriber unit (subscriber unit), a user equipment (user equipment, UE), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a personal digital assistant ( personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (handset), laptop computer (laptop computer), machine type communication (machine type communication, MTC) terminal, etc.
  • the user equipment includes vehicle user equipment.
  • the network device may be an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WIFI) system in the connection Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be a new air interface (new radio, A gNB or transmission point (for example, TRP or TP) in NR), one or a group (including multiple) antenna panels of a base station in NR, or a network node constituting a gNB or a transmission point, such as
  • the BBU and radio frequency unit can be integrated in the same device, and the device is connected to the antenna array through a cable (such as but not limited to a feeder).
  • the BBU can also be set separately from the RFU, and the two are connected through an optical fiber, and communicate through, for example but not limited to, a common public radio interface (CPRI) protocol.
  • CPRI common public radio interface
  • the RFU is usually called a remote radio unit (RRU), which is connected to the antenna array by cables.
  • the RRU can also be integrated with the antenna array, for example, active antenna unit (active antenna unit, AAU) products currently on the market adopt this structure.
  • the BBU can be further decomposed into multiple parts.
  • the BBU can be further subdivided into a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) according to the real-time nature of the service being processed.
  • CU is responsible for processing non-real-time protocols and services
  • DU is responsible for processing physical layer protocols and real-time services.
  • some physical layer functions can be separated from the BBU or DU and integrated in the AAU.
  • 5G new radio (new radio, NR) is a new topic proposed by the third generation partnership project (3rd generation partnership project, 3GPP), located in release 14.
  • 3GPP third generation partnership project
  • the LTE standard proposed by the 3GPP organization has been widely used all over the world, and it is called 4G communication technology.
  • 4G LTE time division duplexing time division duplexing, TDD
  • frequency division duplexing frequency division duplexing, FDD
  • FIG. 1 a schematic diagram of transmission between a UE and a base station is shown.
  • Uplink transmission generally includes physical uplink control channel (physical uplink control channel, PUCCH) and physical uplink shared channel (physical uplink shared channel, PUSCH), among them, PUCCH belongs to the control channel, the coverage is relatively wide, PUSCH belongs to the data channel, transmits information The volume is large and the coverage area is relatively close. On both the PUCCH and PUSCH channels, there are resource locations for demodulation reference signals (demodulation reference signal, DMRS).
  • demodulation reference signal demodulation reference signal
  • One solution to enhance the channel coverage of PUSCH and PUCCH is to increase repetition, and achieve the effect of channel enhancement through more repetitions in the time domain. While repeating in the time domain, when the DMRS carried by each repetition is in the same frequency domain position, the DMRS signals on each repetition can be combined for joint channel estimation, so as to achieve a more accurate channel estimation effect. Through more accurate channel estimation, the coverage of the PUSCH or PUCCH channel can also be improved.
  • FIG. 2 shows a schematic diagram of unoccupied symbols between channel 1 and channel 2, where channel 1 and channel 2 can be PUCCH or PUSCH, and these unoccupied symbols may be used for other channel transmission , or possibly idle.
  • This scenario is called discontinuous PUCCH (non-back-to-back PUCCH) or discontinuous PUSCH (non-back-to-back PUSCH) in the standard.
  • the DMRS on channel 1 and channel 2 can maintain the phase and The continuity of the amplitude means that the DMRS signal on channel 1 and the DMRS signal on channel 2 can be used for joint channel estimation. It should be understood that channel 1 and channel 2 may also be two repetitions of one channel.
  • a general base station will schedule a sounding reference signal (sounding reference signal, SRS) on the last symbol or symbols of a time slot, for the base station to measure the quality of the uplink channel.
  • SRS sounding reference signal
  • PUCCH transmission is performed on symbols between two channels.
  • this application proposes a method for channel detection.
  • the terminal device sends the first DMRS to the network device at the first time unit where the first channel is located; the terminal device cancels at least one first symbol in the second time unit to send
  • the network device sends a second signal, and the second time unit is after the first time unit and the second time unit is continuous with the first time unit; or, the terminal device determines that at least one second symbol in the second time unit sends a signal to the network
  • the device sends a fourth signal, the fourth signal is determined according to the first DMRS; the terminal device sends the second DMRS to the network device at the third time unit of the third channel, the first DMRS is related to the second DMRS, and the third time unit After the second time unit and the third time unit is continuous with the second time unit, the network device performs channel detection according to the first DMRS and the second DMRS.
  • the method can improve the reliability of channel detection.
  • FIG. 3 a schematic flowchart of a method 300 for channel detection proposed by the embodiment of the present application is shown.
  • the terminal device sends the first DMRS to the network device at the first time unit where the first channel is located.
  • the network device may be a base station.
  • the network device receives the first DMRS sent by the terminal device at the first time unit where the first channel is located.
  • the terminal device cancels at least one first symbol in a second time unit and sends a second signal to the network device, where the second time unit is after the first time unit and the second time unit is continuous with the first time unit.
  • the first symbol is a symbol that originally has uplink transmission in the second time unit.
  • the network device may cancel receiving the second signal in at least one first symbol in the second time unit.
  • the network device may also receive the second signal in at least one first symbol in the second time unit, but the network device cannot receive the second signal.
  • the terminal device sends the second DMRS to the network device at the third time unit where the third channel is located, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the third time unit is related to the second time unit Units are contiguous.
  • the network device can perform joint channel estimation according to the received first DMRS and the second DMRS.
  • the network device receives the second DMRS sent by the terminal device at the third time unit where the third channel is located.
  • the network device performs channel detection according to the first DMRS and the second DMRS.
  • the first DMRS is related to the second DMRS. It can be understood that the phase difference between the first DMRS and the second DMRS is less than or equal to the first preset value, and the amplitude difference between the first DMRS and the second DMRS is less than or equal to the second default value.
  • the first preset value and the second preset value may be predefined, or may be determined by the network device (base station) and indicated to the terminal device, or may be preset inside the terminal device, without limitation.
  • the first channel and the third channel may be the physical uplink shared channel PUSCH, and the first channel and the third channel may also be the physical uplink control channel PUCCH.
  • the first channel and the third channel may be two repetitions of the same channel, for example, the first channel and the third channel may be two repetitions of the same PUSCH, or the first channel and the third channel may be the same Two repetitions of PUCCH; the first channel and the third channel may also be different channels, for example, the first channel and the third channel may be PUSCH carrying different transport blocks, or the first channel and the third channel may be PUCCH carrying different transport blocks.
  • the terminal device may cancel every first symbol in the second time unit to send the second signal to the network device, or cancel part of the first symbols in the second time unit to send the second signal to the network device.
  • Two signals. And determine whether to map the information carried by the canceled second signal to be sent in the first symbol to the first channel and/or the third channel for transmission according to some conditions.
  • Conditions that can be considered include but are not limited to PUCCH format, PUCCH Priority, type of information carried by PUCCH, position/range of symbols occupied by PUCCH, number of PUCCH symbols, number of remaining first symbols after part of the first symbols are canceled, etc.
  • the terminal device may cancel each first symbol in the second time unit to send the second signal to the network device, so as to ensure that all symbols in the second time unit are not occupied or have no uplink transmission.
  • the network device cancels receiving the second signal at each first symbol in the second time unit.
  • FIG. 4 it shows a schematic diagram of canceling every first symbol in the second time unit to send the second signal to the network device.
  • the network device sends a second signal.
  • the second symbol and the fourth symbol are called first symbols.
  • FIG. 5 it shows another schematic diagram of canceling each first symbol in the second time unit to send the second signal to the network device.
  • the 6 symbols included in the second time unit as an example, if the first symbol to the sixth symbol in the second time unit are originally symbols for uplink transmission, cancel the communication between the first symbol and the sixth symbol.
  • the network device sends a second signal.
  • the first symbol, the second symbol, the third symbol, the fourth symbol, the fifth symbol, and the sixth symbol are referred to as first symbols.
  • the second channel is located in the second time unit, and the second channel is a physical uplink control channel PUCCH.
  • the terminal equipment cancels each first symbol in the second time unit to send a second signal to the network equipment.
  • the terminal device cancels each first symbol in the second time unit to send the second signal to the network device.
  • the terminal equipment cancels every first symbol in the second time unit to the network equipment Send the second signal.
  • the first channel and the third channel may be PUCCH or PUSCH.
  • the terminal device may send uplink control information (uplink control information, UCI) to be carried on the PUCCH (second channel) on the first channel, or may send the UCI to be carried on the PUCCH on the third channel, Or, the UCI to be carried on the PUCCH may be sent on the first channel and the third channel.
  • the uplink control information carried by the PUCCH may be multiplexed (UCI multiplex) onto the first channel and/or the third channel through uplink control information. Therefore, information loss caused by canceling the uplink transmission in the second time unit can be avoided, and the reliability of UCI information transmission can be ensured.
  • the UCI to be carried on the second channel may be mapped (multiplexed) to the first channel and/or Or transmit on the third channel.
  • the PUCCH format used in the second channel is PUCCH format 0, PUCCH format 1 or PUCCH format 2
  • the bits (bits) occupied by the UCI are less, and the first channel and the third channel can carry these bits;
  • the second When the channel adopts the PUCCH format of PUCCH format 3 or PUCCH format 4, the UCI occupies more bits, and the first channel and the third channel may not be able to carry too many bits.
  • the first channel and the third channel may be PUCCH, and if the PUCCH format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH format 4, the UCI to be carried on the second channel may be mapped to the first channel. transmission on the first channel and/or the third channel. Because PUCCH format 3 or PUCCH format 4 can carry more bits.
  • the terminal equipment When the priority of the PUCCH (second channel) is higher than or equal to the priority of the first channel and the priority of the third channel, the terminal equipment does not cancel the transmission of each first symbol in the second time unit to the network equipment
  • the second signal that is, the terminal device sends the second signal to the network device for each first symbol in the second time unit, which can ensure the transmission of more important (high priority) signals.
  • the base station does not perform a joint channel estimate.
  • the priority of the PUCCH (second channel) is higher than or equal to the priority of the first channel and the priority of the third channel, it is also possible to cancel sending each first symbol in the second time unit to the network device.
  • two signals and map the UCI to be carried on the PUCCH to the first channel and/or the third channel for transmission, which is beneficial for the base station to perform joint channel estimation. This embodiment of the present application does not specifically limit it.
  • the terminal device cancels each first symbol in the second time unit to send the second signal to the network device.
  • the terminal device cancels each first symbol in the second time unit to send the second signal to the network device.
  • the terminal equipment cancels the sending of each first symbol in the second time unit to The network device sends a second signal.
  • the first threshold value is 0, when the priorities of the first channel and the third channel are 1, the terminal equipment cancels every first symbol in the second time unit to send the second signal to the network equipment; When the priorities of the first channel and the third channel are 0, the terminal device may send the second signal to the network device at the first symbol in the second time unit.
  • the first threshold value is 0, when the second signal is the sounding reference signal SRS, and the priorities of the first channel and the third channel are 1, cancel the transmission of the SRS; when the second signal is the sounding reference signal SRS, When the priorities of the first channel and the third channel are 0, only part of the SRS transmission on the first symbol may be canceled, or the SRS transmission may not be canceled.
  • the terminal device may cancel each first symbol in the N symbols in the second time unit to send the second signal to the network device, the N symbols are continuous, and the N symbols The last symbol in is continuous with the first symbol in the third time unit, where the second time unit includes M symbols, M is greater than or equal to N, and N and M are positive integers.
  • N symbols are the number of symbols required for the terminal device to perform local oscillator retuning (LO retuning). It can also be understood that N symbols are required for the terminal device to adjust the phase and amplitude of the uplink transmission signal number of symbols.
  • N may be determined by the terminal device according to its own capability information, or N may be determined by the terminal device according to parameter information configured by the network device through radio resource control (radio resource control, RRC) signaling.
  • RRC radio resource control
  • the terminal device cancels each first symbol in the second time unit to send the second signal to the network device.
  • the network device cancels each first symbol in the N symbols in the second time unit from receiving the second signal.
  • the base station determines that there is no uplink transmission and downlink transmission of the terminal device on the N symbols in the second time unit between the first time unit and the third time unit, the N symbols are continuous, and the N symbols The last symbol in is continuous with the first symbol in the third time unit, and the base station can use the first DMRS transmitted by the terminal device in the first time unit of the first channel and the first DMRS sent by the terminal device in the third channel
  • the second DMRS sent by the three time units performs joint channel estimation; otherwise, the base station cannot perform joint channel estimation.
  • the base station may The first DMRS sent by the first time unit of , and the second DMRS sent by the terminal device at the third time unit where the third channel is located perform joint channel estimation; otherwise, the base station cannot perform joint channel estimation.
  • FIG. 6 it shows a schematic diagram of canceling each first symbol in the N symbols in the second time unit to send the second signal to the network device.
  • N is equal to 3 and M is equal to 6.
  • M is equal to 6.
  • the second symbol and the fourth symbol in the second time unit are originally symbols for uplink transmission, cancel sending the second signal to the network device in the fourth symbol.
  • the second symbol and the fourth symbol are called first symbols.
  • FIG. 7 shows a schematic diagram of canceling each first symbol in the N symbols in the second time unit to send the second signal to the network device.
  • N is equal to 3 and M is equal to 6.
  • M is equal to 6.
  • the first symbol to the sixth symbol in the second time unit are originally symbols for uplink transmission, cancel sending the second signal to the network device in the fourth symbol to the sixth symbol.
  • the first symbol, the second symbol, the third symbol, the fourth symbol, the fifth symbol, and the sixth symbol are referred to as first symbols.
  • the second channel is located in the second time unit, and the second channel is a physical uplink control channel PUCCH.
  • the terminal equipment cancels each first symbol in the N symbols in the second time unit and sends a second signal to the network equipment .
  • the terminal equipment cancels each first symbol in the N symbols in the second time unit and sends the first symbol to the network equipment Two signals.
  • the terminal equipment cancels each of the N symbols in the second time unit A symbol sends a second signal to the network device.
  • the first channel and the third channel can be two repetitions of the same PUCCH, or two repetitions of the same PUSCH; the first channel and the third channel can also be different channels, for example, the first channel and the third channel
  • the channels may be PUSCHs carrying different transport blocks, or the first channel and the third channel may be PUCCHs carrying different transport blocks.
  • the terminal device may send the UCI to be carried on the PUCCH (second channel) on the first channel, or may send the UCI to be carried on the PUCCH on the third channel, or may send the UCI to be carried on the PUCCH on the first channel and the second channel
  • the UCI to be carried on the PUCCH is sent on the three channels. That is, the uplink control information carried by the PUCCH can be multiplexed (UCI multiplex) onto the first channel and/or the third channel through the uplink control information. Therefore, information loss caused by canceling the uplink transmission in the second time unit can be avoided, and the reliability of UCI information transmission can be ensured.
  • the UCI sent on the first channel and/or the third channel may be the UCI to be carried on each first symbol in the N symbols in the second time unit, or may be the UCI in the second time unit The UCI to be carried on each first symbol of . It should be understood that when the UCI sent on the first channel and/or the third channel is the UCI to be carried on each first symbol in the N symbols in the second time unit, since the N symbols in the second time unit If the UCI to be carried on symbols other than N symbols is not canceled, then the UCI to be carried on symbols other than N symbols in the second time unit does not need to be mapped to the first channel and/or the third channel.
  • the UCI to be carried on the second channel may be mapped (multiplexed) to the first channel and/or the third channel. transmission on the channel. Because when the PUCCH format used in the second channel is PUCCH format 0, PUCCH format 1 or PUCCH format 2, the bits (bits) occupied by the UCI are less, and the first channel and the third channel can carry these bits; when the second When the channel adopts the PUCCH format of PUCCH format 3 or PUCCH format 4, the UCI occupies more bits, and the first channel and the third channel may not be able to carry too many bits.
  • the first channel and the third channel may be PUCCH, and if the PUCCH format adopted by the first channel and the third channel is PUCCH format 3 or PUCCH format 4, the UCI to be carried on the second channel may be mapped to the first channel. transmission on the first channel and/or the third channel. Because PUCCH format 3 or PUCCH format 4 can carry more bits.
  • the terminal device When the priority of the PUCCH (second channel) is higher than or equal to the priority of the first channel and the priority of the third channel, the terminal device does not cancel every first symbol in the N symbols in the second time unit.
  • the symbol sends the second signal to the network device, that is, each first symbol in the N symbols of the terminal device in the second time unit sends the second signal to the network device, which can ensure that the more important (high priority) signal transmission, at this time, the base station does not perform joint channel estimation.
  • each first symbol in the N symbols in the second time unit can also be canceled Sending the second signal to the network device, and mapping the UCI to be carried on the PUCCH to the first channel and/or the third channel for transmission is beneficial for the base station to perform joint channel estimation.
  • This embodiment of the present application does not specifically limit it.
  • the terminal device cancels each first symbol in the N symbols in the second time unit to send the second signal to the network device.
  • the terminal equipment cancels each first symbol in the N symbols in the second time unit and sends the second Signal.
  • the terminal equipment cancels each of the N symbols in the second time unit A first symbol sends a second signal to the network device.
  • the terminal device when the priority of the first channel and the third channel is 1, the terminal device cancels every first symbol in the second time unit to send the second signal to the network device; when the priority of the first channel and the third channel When the level is 0, the terminal device may send the second signal to the network device at the first symbol in the second time unit.
  • the second signal is the sounding reference signal SRS
  • the priority of the first channel and the third channel is 1, cancel the transmission of the SRS; when the second signal is the sounding reference signal SRS, the priority of the first channel and the third channel When the priority is 0, only part of the SRS transmission on the first symbol may be canceled, or the SRS transmission may not be canceled.
  • the terminal device cancels sending the second DMRS to the network device in the third time unit where the third channel is located, it may not cancel sending at least one first symbol in the second time unit to the network device The second signal so as not to affect the transmission on the at least one first symbol in the second time unit.
  • the base station does not perform joint channel estimation.
  • the above-mentioned first time unit, second time unit and third time unit are time units within the range of a time domain window for performing joint channel estimation, and the time domain window is a time range for performing joint channel estimation.
  • FIG. 8 a schematic diagram of canceling at least one first symbol in a second time unit and sending a second signal to a network device is shown.
  • the time domain window of the joint channel estimation includes 4 time units
  • the first time unit to the fourth time unit are within the time domain window
  • the fifth time unit is not within the time domain window.
  • the terminal device sends a DMRS for joint channel estimation to the network device in the first time unit and the third time unit, at least one of the first symbol in the second time unit and at least one of the fourth time unit
  • the first symbol is configured/instructed to send a second signal to the network device, for example, the second signal may be a sounding reference signal SRS.
  • the terminal device cancels at least one first symbol in the second time unit to send the second signal to the network device, so that the base station performs joint channel estimation.
  • the fifth time unit where the fifth channel is located is not within the range of the time domain window for joint channel estimation, therefore, there is no need to cancel at least one first symbol in the fourth time unit to send the second signal to the network device.
  • other uplink transmissions are located in one or more time slots carrying a transmission opportunity for a transmission block (a transmission occasion for TboMS, TBoMS, TBoMS) or a time Between two PUSCH/PUCCH channels in the domain window, other uplink transmissions between two consecutive PUSCH/PUCCH channels within a time domain window and a smaller range in the TOT can be canceled.
  • first channel and third channel may be different repetitions of the same channel, or may be different channels.
  • the terminal device sends the first DMRS to the network device at the first time unit where the first channel is located, sends the second DMRS to the network device at the third time unit where the third channel is located, and Canceling at least one first symbol in the second time unit between the first time unit and the third time unit to send the second signal to the network device can ensure the continuity of the phase and amplitude of the first DMRS and the second DMRS , so that the reliability of channel detection can be improved.
  • FIG. 9 it is a schematic flowchart of another channel detection method 900 proposed by the embodiment of the present application.
  • the terminal device sends the first DMRS to the network device at the first time unit where the first channel is located.
  • the network device may be a base station.
  • the network device receives the first DMRS sent by the terminal device at the first time unit where the first channel is located.
  • the terminal device determines that at least one second symbol in a second time unit sends a fourth signal to the network device, where the second time unit is after the first time unit and the second time unit is continuous with the first time unit.
  • the fourth signal is determined according to the first DMRS. It should be understood that the terminal device cancels uplink transmission on symbols other than at least one second symbol in the second time unit, in other words, the terminal device does not perform uplink transmission on symbols other than at least one second symbol in the second time unit.
  • the network device determines that at least one second symbol in the second time unit receives the fourth signal sent by the terminal device.
  • the terminal device sends the second DMRS to the network device at the third time unit where the third channel is located, the first DMRS is related to the second DMRS, the third time unit is after the second time unit and the third time unit is related to the second time unit Units are contiguous.
  • the network device can perform joint channel estimation according to the received first DMRS and the second DMRS.
  • the network device receives the second DMRS sent by the terminal device at the third time unit where the third channel is located.
  • the network device performs channel detection according to the first DMRS and the second DMRS.
  • the first DMRS is related to the second DMRS. It can be understood that the phase difference between the first DMRS and the second DMRS is less than or equal to the first preset value, and the amplitude difference between the first DMRS and the second DMRS is less than or equal to the second default value.
  • the first preset value and the second preset value may be predefined, or may be determined by the network device (base station) and indicated to the terminal device.
  • the first channel and the third channel may be the physical uplink shared channel PUSCH, and the first channel and the third channel may also be the physical uplink control channel PUCCH.
  • the first channel and the third channel may be two repetitions of the same channel, for example, the first channel and the third channel may be two repetitions of the same PUSCH, or the first channel and the third channel may be the same Two repetitions of PUCCH.
  • the first channel and the third channel may also be different channels, for example, the first channel and the third channel may be PUSCH bearing different transport blocks, or the first channel and the third channel may be PUSCH bearing different transport blocks PUCCH.
  • PRB physical resource block
  • the first preset condition may include one or more of the following: the physical resource block occupied by at least one second symbol is the same as the physical resource block occupied by the first time unit, or the physical resource block occupied by at least one second symbol The same size as the physical resource block occupied by the first time unit, or, the physical resource block occupied by at least one second symbol is adjacent to the physical resource block occupied by the first time unit, that is, the physical resource block occupied by at least one second symbol There is no other physical resource block between the physical resource block occupied by the first time unit.
  • the second preset condition includes that a difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the fourth signal may also be determined according to the second DMRS, and the fourth signal may also be determined according to the first DMRS and the second DMRS.
  • the fourth signal may be a sounding reference signal SRS.
  • the terminal device may report capability information related to joint channel estimation to the network device, for example, the terminal device may compare the power of the fourth signal sent in the second time unit with other channels (such as the first channel and the third channel ) with the same power of the DMRS transmitted.
  • the base station can determine whether joint channel estimation can be performed according to the capability information reported by the terminal equipment.
  • the terminal device sends the first DMRS to the network device at the first time unit where the first channel is located, sends the second DMRS to the network device at the third time unit where the third channel is located, and At least one second symbol in the second time unit between the first time unit and the third time unit sends a fourth signal to the network device, and the physical resource block occupied by the at least one second symbol is the same as the physical resource block occupied by the first time unit
  • the resource blocks are the same, and/or, the difference between the power of the fourth signal and the power of the first DMRS is less than or equal to the third preset value, which can ensure the continuity of the phase and amplitude of the first DMRS and the second DMRS, so that The reliability of channel detection can be improved.
  • FIG. 10 shows a schematic block diagram of a communication device 1000 according to the embodiment of the present application.
  • This apparatus may be applied to the terminal device in the method embodiment in FIG. 3 or FIG. 9 .
  • the communication device 1000 includes:
  • a sending unit 1010 configured to send a first demodulation reference signal DMRS to a network device at a first time unit where the first channel is located;
  • a determining unit 1020 configured to cancel at least one first symbol in a second time unit and send a second signal to the network device, where the second time unit is after the first time unit and the second time unit It is continuous with the first time unit; or, it is used to determine that at least one second symbol in the second time unit sends a fourth signal to the network device, and the fourth signal is based on the first time unit - determined by the DMRS;
  • the sending unit 1010 is further configured to send a second DMRS to the network device at a third time unit where the third channel is located, the first DMRS is related to the second DMRS, and the third time unit is at the after the second time unit and the third time unit is continuous with the second time unit.
  • the determining unit 1020 is specifically configured to cancel each first symbol in the second time unit to send the second signal to the network device.
  • the determining unit 1020 is specifically configured to cancel each first symbol in the N symbols in the second time unit and send the second signal to the network device, and the N symbols is continuous, and the last symbol in the N symbols is continuous with the first symbol in the third time unit, wherein the second time unit includes M symbols, and M is greater than N, N and M are positive integers.
  • the N is determined by the terminal device according to its own capability information, or the N is determined by the terminal device according to parameter information configured by the network device.
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the determining unit 1020 is configured to cancel when at least one first symbol in the second time unit sends the second signal to the network device, the second channel is located in the second time unit, and the second The channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the sending unit 1010 is further configured to send the uplink control information UCI to be carried on the PUCCH on the first channel and/or the third channel.
  • the format used by the second channel is PUCCH format 0, PUCCH format 1 or PUCCH format 2.
  • the first channel and the third channel are PUCCHs, and formats adopted by the first channel and the third channel are PUCCH format 3 or PUCCH format 4.
  • the second signal and/or the fourth signal is a Sounding Reference Signal SRS
  • the determining unit 1020 is configured to cancel at least one first symbol in a second time unit from sending to the When the network device sends the second signal, the priorities of the first channel and the third channel are higher than the first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to a first preset value, and the first DMRS is related to the second DMRS The amplitude difference of the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, including: the physical resource block occupied by the at least one second symbol and the physical resource block occupied by the first time unit satisfy the first preset conditions, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same or has the same size as the physical resource block occupied by the first time unit; the second preset condition includes that A difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different channels.
  • FIG. 11 shows a schematic block diagram of a communication device 1100 in the embodiment of the present application.
  • the apparatus may be applied to the network device in the method embodiment in FIG. 3 or FIG. 9 .
  • the communication device 1100 includes:
  • the receiving unit 1110 is configured to receive the first demodulation reference signal DMRS sent by the terminal device at the first time unit where the first channel is located;
  • a determining unit 1120 configured to cancel receiving a second signal at least one first symbol in a second time unit, where the second time unit is after the first time unit and the second time unit is the same as the first time unit
  • the time units are continuous; or, it is used to determine that at least one second symbol in the second time unit receives a fourth signal sent by the terminal device, the fourth signal is determined according to the first DMRS ;
  • the receiving unit 1110 is further configured to receive a second DMRS sent by the terminal device at a third time unit where the third channel is located, the first DMRS is related to the second DMRS, and the third time unit is at After the second time unit and the third time unit is continuous with the second time unit;
  • the processing unit 1130 is configured to perform channel detection according to the first DMRS and the second DMRS.
  • the determining unit 1120 is specifically configured to cancel receiving the second signal at each first symbol in the second time unit.
  • the determining unit 1120 is specifically configured to cancel each first symbol in the N symbols in the second time unit from receiving the second signal, the N symbols are continuous, and the N symbols The last symbol in the symbols is continuous with the first symbol in the third time unit, where the second time unit includes M symbols, M is greater than N, and N and M are positive integers.
  • the first channel and the third channel are a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the determining unit 1120 is configured to cancel when at least one first symbol in the second time unit receives the second signal, the second channel is located in the second time unit, and the second channel is a physical uplink control channel PUCCH, and the priority of the PUCCH is lower than or equal to the priority of the first channel and/or the priority of the third channel.
  • the receiving unit 1110 is further configured to receive uplink control information UCI to be carried on the PUCCH on the first channel and/or the third channel.
  • the format used by the second channel is PUCCH format 0, PUCCH format 1 or PUCCH format 2.
  • the first channel and the third channel are PUCCHs, and formats adopted by the first channel and the third channel are PUCCH format 3 or PUCCH format 4.
  • the second signal and/or the fourth signal is a sounding reference signal SRS, and/or the determining unit is configured to cancel receiving the second signal in at least one first symbol in the second time unit When , the priorities of the first channel and the third channel are higher than the first threshold.
  • the first DMRS is related to the second DMRS, including: the phase difference between the first DMRS and the second DMRS is less than or equal to a first preset value, and the first DMRS is related to the second DMRS The amplitude difference of the second DMRS is less than or equal to a second preset value.
  • the fourth signal is determined according to the first DMRS, including: the physical resource block occupied by the at least one second symbol and the physical resource block occupied by the first time unit satisfy the first preset conditions, and/or, the power of the fourth signal and the power of the first DMRS satisfy a second preset condition.
  • the first preset condition includes that the physical resource block occupied by the at least one second symbol is the same or has the same size as the physical resource block occupied by the first time unit; the second preset condition includes that A difference between the power of the fourth signal and the power of the first DMRS is less than or equal to a third preset value.
  • the first channel and the third channel are two transmissions of the same channel, or the first channel and the third channel are different channels.
  • FIG. 12 shows a schematic block diagram of the communication device 1200 according to the embodiment of the present application.
  • the communication device 1200 includes: a processor 1210 and a transceiver 1220, the transceiver 1220 is used to receive computer codes or instructions and transmit them to the processor 1210, and the processor 1210 runs the computer codes or instructions to Implement the method in the embodiment of this application.
  • the communication device may be a terminal device or a network device in the embodiment of the present application.
  • the above-mentioned processor 1210 may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • Program logic devices discrete gate or transistor logic devices, discrete hardware components.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the above method embodiment is stored.
  • a computer program for implementing the method in the above method embodiment is stored.
  • the computer program runs on the computer, the computer can implement the methods in the above method embodiments.
  • the embodiment of the present application also provides a computer program product, the computer program product includes computer program code, and when the computer program code is run on the computer, the method in the above method embodiment is executed.
  • the embodiment of the present application also provides a chip, including a processor, the processor is connected to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the The chip executes the method in the above method embodiment.
  • the term "and/or” in this application is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist simultaneously , there are three cases of B alone.
  • the character "/" in this article generally means that the contextual objects are an "or” relationship; the term “at least one” in this application can mean “one” and "two or more", for example, A , B and C, can mean: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, A, B and C exist simultaneously, these seven kinds Condition.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

本申请提供了一种信息检测的方法和装置，能够提高信道检测的可靠性。该方法包括：终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS；该终端设备取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号，第二时间单元在第一时间单元之后且第二时间单元与第一时间单元是连续的；或者，终端设备确定在第二时间单元中的至少一个第二符号向网络设备发送第四信号，该第四信号是根据所述第一DMRS确定的；该终端设备在第三信道所在的第三时间单元向网络设备发送第二DMRS，第一DMRS与第二DMRS相关，第三时间单元在第二时间单元之后且第三时间单元与第二时间单元是连续的。

Description

信道检测的方法和装置
本申请要求于2021年06月22日提交中国专利局、申请号为202110690021.0、发明名称为“一种使能联合信道检测的方法”的专利申请的优先权，以及2021年07月30日提交中国专利局、申请号为202110877940.9、发明名称为“信道检测的方法和装置”的专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种信道检测的方法和装置。
背景技术
在通信系统中，存在基站到用户设备(user equipment，UE)的下行传输和UE到基站的上行传输，下行传输的覆盖范围一般会高于上行传输的覆盖范围，因此，覆盖增强的研究主要集中于如何提高上行传输的覆盖范围。
上行传输一般包括物理上行控制信道(physical uplink control channel，PUCCH)和物理上行共享信道(physical uplink shared channel，PUSCH)，其中，PUCCH属于控制信道，覆盖范围相对较广，PUSCH属于数据信道，传输信息量大，覆盖范围相对较近。在PUCCH和PUSCH信道上，均有解调参考信号(demodulation reference signal，DMRS)的资源位置。
PUSCH和PUCCH信道覆盖增强的一个方案就是增加重复，通过时域上更多的重复而达到信道增强的效果。在时域上重复的同时，每次重复携带的DMRS在同一频域位置时，可以联合各次重复上的DMRS信号进行联合信道估计。目前，标准研讨中期待使用两个信道上的DMRS做联合信道估计或者一个信道的两次重复上的DMRS做联合信道估计，从而提升覆盖范围。但是，在实际应用中，用于覆盖增强的两个信道之间的符号会有其他上行传输，如果其他上行传输的频域资源和两个信道的频域资源不同，则不能保证后面一个信道上的DMRS与前一个信道上的DMRS的相位和幅度的连续性，这种情况下不能做联合信道估计。
发明内容
本申请提供了一种的信道检测的方法和装置，能够提高信道检测的可靠性。
第一方面，提供一种信道检测的方法，该方法可以由终端设备或终端侧的芯片或芯片系统执行。该方法包括：终端设备在第一信道所在的第一时间单元向网络设备发送第一解调参考信号DMRS；所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，所述终端设备确定在所述第二时间单元中的至少一个第二符号向所述网络设备发送第四信号，所述第四信号是根据所述第一DMRS确定的；所述终端设备在第三信道所在的第三时间单元向所述网络设备发送第二DMRS，所述第一 DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的。
基于上述技术方案，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS，在第三信道所在的第三时间单元向网络设备发送第二DMRS；该终端设备取消在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第一符号向网络设备发送第二信号，或者，该终端设备在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第二符号向网络设备发送第四信号，该至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块相同，和/或，第四信号的功率与第一DMRS的功率的差值小于或等于第三预设值；可以保证该第一DMRS和第二DMRS的相位和幅度的连续性，从而可以提高信道检测的可靠性。
结合第一方面，在第一方面的某些实现方式中，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，包括：所述终端设备取消在所述第二时间单元中的每个第一符号向所述网络设备发送所述第二信号。
结合第一方面，在第一方面的某些实现方式中，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，包括：所述终端设备取消在所述第二时间单元中的N个符号中的每个第一符号向所述网络设备发送所述第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
结合第一方面，在第一方面的某些实现方式中，所述N是所述终端设备根据自身的能力信息确定的，或者，所述N是所述终端设备根据所述网络设备配置的参数信息确定的。
基于上述方案，在第三时间单元之前的N个符号上不做上行传输，能够使终端设备在这些符号上进行本地振荡器重调，从而使在该第三时间单元发送的第二DMRS与第一DMRS相位和幅度保持连续性。
结合第一方面，在第一方面的某些实现方式中，所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
结合第一方面，在第一方面的某些实现方式中，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备在所述第一信道和/或所述第三信道上发送所述PUCCH上将要承载的上行控制信息UCI。
结合第一方面，在第一方面的某些实现方式中，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
结合第一方面，在第一方面的某些实现方式中，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
结合第一方面，在第一方面的某些实现方式中，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
结合第一方面，在第一方面的某些实现方式中，所述第一DMRS与所述第二DMRS 相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
结合第一方面，在第一方面的某些实现方式中，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
结合第一方面，在第一方面的某些实现方式中，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
结合第一方面，在第一方面的某些实现方式中，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
第二方面，提供一种信道检测的方法，该方法可以由网络设备或网络设备侧的芯片或芯片系统执行。该方法包括：网络设备在第一信道所在的第一时间单元接收终端设备发送的第一解调参考信号DMRS；所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，所述网络设备在所述第二时间单元中的至少一个第二符号接收所述终端设备发送的第四信号，所述第四信号是根据所述第一DMRS确定的；所述网络设备在第三信道所在的第三时间单元接收所述终端设备发送的第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的；所述网络设备根据所述第一DMRS和所述第二DMRS，进行信道检测。
基于上述技术方案，网络设备在第一信道所在的第一时间单元接收终端设备发送的第一DMRS，在第三信道所在的第三时间单元接收终端设备发送第二DMRS；该网络设备取消在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第一符号接收第二信号，或者，该网络设备在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第二符号接收终端设备发送的第四信号，该至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块相同，和/或，第四信号的功率与第一DMRS的功率的差值小于或等于第三预设值；该第一DMRS和第二DMRS的相位和幅度具有连续性，因此，可以提高信道检测的可靠性。
结合第二方面，在第二方面的某些实现方式中，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，包括：所述网络设备取消在第二时间单元中的每个第一符号接收第二信号。
结合第二方面，在第二方面的某些实现方式中，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，包括：所述网络设备取消在第二时间单元中的N个符号中的每个第一符号接收第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
结合第二方面，在第二方面的某些实现方式中，所述第一信道和所述第三信道为物理 上行共享信道PUSCH或物理上行控制信道PUCCH。
结合第二方面，在第二方面的某些实现方式中，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
结合第二方面，在第二方面的某些实现方式中，所述网络设备在所述第一信道和/或所述第三信道上接收所述PUCCH上将要承载的上行控制信息UCI。
结合第二方面，在第二方面的某些实现方式中，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
结合第二方面，在第二方面的某些实现方式中，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
结合第二方面，在第二方面的某些实现方式中，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
结合第二方面，在第二方面的某些实现方式中，所述第一DMRS与所述第二DMRS相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
结合第二方面，在第二方面的某些实现方式中，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
结合第二方面，在第二方面的某些实现方式中，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。结合第二方面，在第二方面的某些实现方式中，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
第三方面，提供一种通信装置，包括：发送单元，用于在第一信道所在的第一时间单元向网络设备发送第一解调参考信号DMRS；确定单元，用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，用于确定在所述第二时间单元中的至少一个第二符号向所述网络设备发送第四信号，所述第四信号是根据所述第一DMRS确定的；所述发送单元还用于，在第三信道所在的第三时间单元向所述网络设备发送第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的。
结合第三方面，在第三方面的某些实现方式中，所述确定单元具体用于，取消在所述第二时间单元中的每个第一符号向所述网络设备发送所述第二信号。
结合第三方面，在第三方面的某些实现方式中，所述确定单元具体用于，取消在所述第二时间单元中的N个符号中的每个第一符号向所述网络设备发送所述第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号 是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
结合第三方面，在第三方面的某些实现方式中，所述N是所述终端设备根据自身的能力信息确定的，或者，所述N是所述终端设备根据所述网络设备配置的参数信息确定的。
结合第三方面，在第三方面的某些实现方式中，所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
结合第三方面，在第三方面的某些实现方式中，所述确定单元用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
结合第三方面，在第三方面的某些实现方式中，所述发送单元还用于，在所述第一信道和/或所述第三信道上发送所述PUCCH上将要承载的上行控制信息UCI。
结合第三方面，在第三方面的某些实现方式中，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
结合第三方面，在第三方面的某些实现方式中，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
结合第三方面，在第三方面的某些实现方式中，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述确定单元用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
结合第三方面，在第三方面的某些实现方式中，所述第一DMRS与所述第二DMRS相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
结合第三方面，在第三方面的某些实现方式中，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
结合第三方面，在第三方面的某些实现方式中，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
结合第三方面，在第三方面的某些实现方式中，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
第四方面，提供一种通信装置，包括：接收单元，用于在第一信道所在的第一时间单元接收终端设备发送的第一解调参考信号DMRS；确定单元，用于取消在第二时间单元中的至少一个第一符号接收第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，用于确定在所述第二时间单元中的至少一个第二符号接收所述终端设备发送的第四信号，所述第四信号是根据所述第一DMRS确定的；所述接收单元还用于，在第三信道所在的第三时间单元接收所述终端设备发送的第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时 间单元之后且所述第三时间单元与所述第二时间单元是连续的；处理单元，用于根据所述第一DMRS和所述第二DMRS，进行信道检测。
结合第四方面，在第四方面的某些实现方式中，所述确定单元具体用于，取消在第二时间单元中的每个第一符号接收第二信号。
结合第四方面，在第四方面的某些实现方式中，所述确定单元具体用于，取消在第二时间单元中的N个符号中的每个第一符号接收第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
结合第四方面，在第四方面的某些实现方式中，所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
结合第四方面，在第四方面的某些实现方式中，所述确定单元用于取消在第二时间单元中的至少一个第一符号接收第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
结合第四方面，在第四方面的某些实现方式中，所述接收单元还用于，在所述第一信道和/或所述第三信道上接收所述PUCCH上将要承载的上行控制信息UCI。
结合第四方面，在第四方面的某些实现方式中，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
结合第四方面，在第四方面的某些实现方式中，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
结合第四方面，在第四方面的某些实现方式中，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述确定单元用于取消在第二时间单元中的至少一个第一符号接收第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
结合第四方面，在第四方面的某些实现方式中，所述第一DMRS与所述第二DMRS相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
结合第四方面，在第四方面的某些实现方式中，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
结合第四方面，在第四方面的某些实现方式中，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
结合第四方面，在第四方面的某些实现方式中，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
第五方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第一方面或第一方面任意可能的实现方式中的方法。
第六方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第二方面或第二方面任意可能的实现方式中的方法。
第七方面，提供了一种计算机可读存储介质，所述计算机可读介质存储有计算机程序；所述计算机程序在计算机上运行时，使得计算机执行上述第一方面以及第一方面中任一种可能实现方式中的方法。
第八方面，提供了一种计算机可读存储介质，所述计算机可读介质存储有计算机程序；所述计算机程序在计算机上运行时，使得计算机执行上述第二方面以及第二方面中任一种可能实现方式中的方法。
第九方面，提供一种包含指令的计算机程序产品，所述指令被计算机执行时使得通信装置实现上述第一方面以及第一方面中任一种可能实现方式中的方法。
第十方面，提供一种包含指令的计算机程序产品，所述指令被计算机执行时使得通信装置实现上述第二方面以及第二方面中任一种可能实现方式中的方法。
附图说明
图1是UE和基站间传输的示意图。
图2是信道1和信道2之间存在未被占用的符号的示意图。
图3是本申请实施例提出的一种信道检测的方法的示意性流程图。
图4是一种取消在第二时间单元中的每个第一符号向网络设备发送第二信号的示意图。
图5是另一种取消在第二时间单元中的每个第一符号向网络设备发送第二信号的示意图。
图6是一种取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号的示意图。
图7是另一种取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号的示意图。
图8是取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号的示意图。
图9是本申请实施例提出的另一种信道检测的方法的示意性流程图。
图10是本申请实施例的一种通信装置的示意性框图。
图11是本申请实施例的另一种通信装置的示意性框图。
图12是本申请实施例的一种通信设备的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例可以应用于各种通信系统，例如无线局域网系统(wireless local area network，WLAN)、窄带物联网系统(narrow band-internet of things，NB-IoT)、全球移动通信系统(global system for mobile communications，GSM)、增强型数据速率GSM演进系统(enhanced data rate for gsm evolution，EDGE)、宽带码分多址系统(wideband code  division multiple access，WCDMA)、码分多址2000系统(code division multiple access，CDMA2000)、时分同步码分多址系统(time division-synchronization code division multiple access，TD-SCDMA)，长期演进系统(long term evolution，LTE)、卫星通信、第五代(5th generation，5G)系统或者将来出现的新的通信系统等。
适用于本申请的通信系统，包括一个或多个发送端，以及一个或多个接收端。其中，发送端和接收端之间的信号传输，可以是通过无线电波来传输，也可以通过可见光、激光、红外以及光纤等传输媒介来传输。
示例性地，发送端和接收端中的一个可以为终端设备，另一个可以为网络设备。示例性地，发送端和接收端都可以为终端设备。
本申请实施例中所涉及到的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。终端可以是移动台(mobile station，MS)、用户单元(subscriber unit)、用户设备(user equipment，UE)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端等。其中，用户设备包括车辆用户设备。
示例性地，网络设备可以是演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B，NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU)，无线保真(wireless fidelity,WIFI)系统中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission point,TP)或者发送接收点(transmission and reception point，TRP)等，还可以为新空口(new radio,NR)中的gNB或传输点(例如，TRP或TP)，NR中的基站的一个或一组(包括多个)天线面板，或者，还可以为构成gNB或传输点的网络节点，例如基带单元(building baseband unit，BBU)或分布式单元(distributed unit，DU)等，或者，网络设备还可以为车载设备、可穿戴设备以及5G网络中的网络设备，或者未来演进的PLMN网络中的网络设备等，不作限定。
网络设备的产品形态十分丰富。例如，在产品实现过程中，BBU可以与射频单元(radio frequency unit，RFU)集成在同一设备内，该设备通过线缆(例如但不限于馈线)连接至天线阵列。BBU还可以与RFU分离设置，二者之间通过光纤连接，通过例如但不限于，通用公共射频接口(common public radio interface，CPRI)协议进行通信。在这种情况下，RFU通常称为射频拉远单元(remote radio unit，RRU)，其通过线缆连接至天线阵列。此外，RRU还可以与天线阵列集成在一起，例如，目前市场上的有源天线单元(active antenna unit，AAU)产品就采用了这种结构。
此外，BBU可以进一步分解为多个部分。例如，可以按照所处理业务的实时性将BBU进一步细分为集中单元(centralized unit，CU)和分布单元(distribute unit，DU)。CU负责处理非实时协议和服务，DU负责处理物理层协议和实时服务。更进一步的，部分物理层功能还可以从BBU或者DU中分离出来，集成在AAU中。
5G新无线(new radio，NR)是第三代合作伙伴计划(3rd generation partnership project， 3GPP)组织新提出的一个课题，位于release 14中。在过去的近10年中，3GPP组织提出的LTE标准已经被全世界广泛使用，被称为4G通信技术。例如，中国移动、中国联通、中国电信，都分别采用了4G LTE时分双工(time division duplexing，TDD)和频分双工(frequency division duplexing，FDD)模式的传输技术，并为广大用户提供了高速便捷的移动网络服务。
而随着新一代5G技术进入讨论阶段，原先4G LTE里已经达到的系统结构和接入流程是否继续采纳？一方面，由于通信系统是后项兼容的，所以后来研发的新技术倾向于兼容之前的已经标准化的技术；而另一方面，由于4G LTE已经存在了大量的现有设计，如果为了达到兼容，必然要牺牲掉5G的很多灵活度，从而降低性能。因此，目前在3GPP组织中两个方向并行研究，不考虑后向兼容的技术讨论组，被称为5G NR。
在通信系统中，存在基站到UE的下行传输和UE到基站的上行传输，由于基站的成本相对较高，下行传输的覆盖范围一般会高于上行传输的覆盖范围。由于UE侧成本限制因素，只能使用较廉价的功率放大器，其功率上限也相对基站侧要低，因此覆盖增强的研究主要集中于如何提高上行传输的覆盖范围。如图1所示，出示了UE和基站间传输的示意图。
上行传输一般包括物理上行控制信道(physical uplink control channel，PUCCH)和物理上行共享信道(physical uplink shared channel，PUSCH)，其中，PUCCH属于控制信道，覆盖范围相对较广，PUSCH属于数据信道，传输信息量大，覆盖范围相对较近。在PUCCH和PUSCH信道上，均有解调参考信号(demodulation reference signal，DMRS)的资源位置。
PUSCH和PUCCH信道覆盖增强的一个方案就是增加重复，通过时域上更多的重复而达到信道增强的效果。在时域上重复的同时，每次重复携带的DMRS在同一频域位置时，可以联合各次重复上的DMRS信号进行联合信道估计，从而达到更加精准的估计信道的效果。通过更精确的信道估计，也能提升PUSCH或PUCCH信道的覆盖情况。
标准研讨中期待使用两个信道上的DMRS做联合信道估计或者一个信道的两次重复上的DMRS做联合信道估计，从而提升覆盖范围。如图2所示，出示了信道1和信道2之间存在未被占用的符号的示意图，其中，信道1和信道2可以为PUCCH或PUSCH，未被占用的这些符号可能是用于其他信道传输，也可能是处于空闲状态。这种场景在标准中称作不连续的PUCCH(non-back-to-back PUCCH)或者不连续的PUSCH(non-back-to-back PUSCH)。
调度PUSCH重复或PUCCH重复时，如果在两个信道(信道1和信道2)间没有其他的上行传输，通过在这样的资源上进行重复调度，可以使信道1和信道2上的DMRS保持相位和幅度的连续性，即可以用信道1上的DMRS信号和信道2上的DMRS信号做联合信道估计。应理解，信道1和信道2也可以是一个信道的两次重复。
但是，用于覆盖增强的两个信道之间没有其他上行传输的应用场景有很多限制，在实际应用中，用于覆盖增强的两个信道之间的符号会有其他上行传输。例如，一般基站会在时隙的最后一个或几个符号上调度探测参考信号(sounding reference signal，SRS)，用于基站测量上行信道的质量。SRS的配置存在周期和非周期两种情况，由基站通过配置信息告知终端设备。又例如，在两个信道之间的符号进行PUCCH的传输。此时，如果SRS或 PUCCH的频域资源和两个信道的频域资源不同，则不能保证后面一个信道上的DMRS与前一个信道上的DMRS的相位和幅度的连续性，这种情况下不能做联合信道估计。
为此，本申请提出了一种信道检测的方法，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS；终端设备取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号，第二时间单元在第一时间单元之后且第二时间单元与第一时间单元是连续的；或者，终端设备确定在第二时间单元中的至少一个第二符号向网络设备发送第四信号，第四信号是根据第一DMRS确定的；终端设备在第三信道所在的第三时间单元向网络设备发送第二DMRS，第一DMRS与第二DMRS相关，第三时间单元在第二时间单元之后且第三时间单元与第二时间单元是连续的，网络设备根据第一DMRS和第二DMRS进行信道检测。该方法能够提高信道检测的可靠性。
如图3所示，出示了本申请实施例提出的一种信道检测的方法300的示意性流程图。
310，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS。该网络设备可以为基站。对应地，网络设备在第一信道所在的第一时间单元接收终端设备发送的第一DMRS。
320，终端设备取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号，该第二时间单元在第一时间单元之后且第二时间单元与第一时间单元是连续的。其中，第一符号为第二时间单元中原本有上行传输的符号。对应地，网络设备可以取消在第二时间单元中的至少一个第一符号接收第二信号。可选的，该网络设备也可以在第二时间单元中的至少一个第一符号接收第二信号，但该网络设备接收不到第二信号。
330，终端设备在第三信道所在的第三时间单元向网络设备发送第二DMRS，第一DMRS与第二DMRS相关，第三时间单元在第二时间单元之后且第三时间单元与第二时间单元是连续的。网络设备可以根据接收到的第一DMRS和第二DMRS进行联合信道估计。对应地，网络设备在第三信道所在的第三时间单元接收终端设备发送的第二DMRS。网络设备根据第一DMRS和第二DMRS进行信道检测。
具体地，第一DMRS与第二DMRS相关，可以理解为，第一DMRS与第二DMRS的相位差小于或等于第一预设值，第一DMRS与第二DMRS的幅度差小于或等于第二预设值。其中，第一预设值和第二预设值可以是预定义的，也可以是网络设备(基站)确定并指示给终端设备的，也可以预先设置在终端设备内部，不予限制。
第一信道和第三信道可以为物理上行共享信道PUSCH，第一信道和第三信道也可以为物理上行控制信道PUCCH。可选的，第一信道和第三信道可以是同一信道的两次重复，例如，第一信道和第三信道可以是同一PUSCH的两次重复，或，第一信道和第三信道可以是同一PUCCH的两次重复；第一信道和第三信道也可以是不同的信道，例如，第一信道和第三信道可以是承载了不同传输块的PUSCH，或，第一信道和第三信道可以是承载了不同传输块的PUCCH。
在本申请实施例中，终端设备可以取消在第二时间单元中的每个第一符号向网络设备发送第二信号，也可以取消在第二时间单元中的部分第一符号向网络设备发送第二信号。并根据一些条件确定是否将所取消的将要在第一符号发送的第二信号所承载的信息映射到第一信道和/或第三信道进行发送，可考虑的条件包括但不限于PUCCH格式、PUCCH优先级、PUCCH承载的信息类型、PUCCH占用的符号位置/范围、PUCCH符号数、取消 部分第一符号后剩余的第一符号的个数等。
在一种实现方式中，终端设备可以取消在第二时间单元中的每个第一符号向网络设备发送第二信号，以确保第二时间单元中的全部符号不被占用或没有上行传输。对应地，网络设备取消在第二时间单元中的每个第一符号接收第二信号。
如图4所示，出示了一种取消在第二时间单元中的每个第一符号向网络设备发送第二信号的示意图。以第二时间单元中包括6个符号为例，若第二时间单元中的第二个符号和第四个符号为原本有上行传输的符号，则取消在第二个符号和第四个符号向网络设备发送第二信号。该情况下，该第二个符号和第四个符号称为第一符号。
如图5所示，出示了另一种取消在第二时间单元中的每个第一符号向网络设备发送第二信号的示意图。以第二时间单元中包括6个符号为例，若第二时间单元中的第一个符号至第六个符号为原本有上行传输的符号，则取消在第一个符号至第六个符号向网络设备发送第二信号。该情况下，第一个符号、第二个符号、第三个符号、第四个符号、第五个符号和第六个符号称为第一符号。
示例性地，第二信道位于第二时间单元，该第二信道为物理上行控制信道PUCCH。当该PUCCH(第二信道)的优先级低于或等于第一信道的优先级时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。或者，当该PUCCH(第二信道)的优先级低于或等于第三信道的优先级时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。或者，当该PUCCH(第二信道)的优先级低于或等于第一信道的优先级和第三信道的优先级时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。其中，第一信道和第三信道可以为PUCCH，也可以为PUSCH。
可选的，终端设备可以在第一信道上发送PUCCH(第二信道)上将要承载的上行控制信息(uplink control information，UCI)，或者，可以在第三信道上发送PUCCH上将要承载的UCI，或者，可以在第一信道和第三信道上发送PUCCH上将要承载的UCI。示例性地，可以将PUCCH承载的上行控制信息通过上行控制信息复用(UCI multiplex)到第一信道和/或第三信道上。从而可以避免因取消在第二时间单元中的上行传输造成的信息遗失，保证UCI信息传输的可靠性。
可选的，当第二信道采用的PUCCH格式为PUCCH格式(format)0、PUCCH格式1或PUCCH格式2时，可以将第二信道上将要承载的UCI映射(复用)到第一信道和/或第三信道上进行传输。因为当第二信道采用的是PUCCH格式为PUCCH格式0、PUCCH格式1或PUCCH格式2时，该UCI占用的比特(bit)较少，第一信道和第三信道可以承载这些比特；当第二信道采用的是PUCCH格式为PUCCH格式3或PUCCH格式4时，该UCI占用的比特比较多，第一信道和第三信道可能无法承载太多的比特。
可选的，第一信道和第三信道可以为PUCCH，若第一信道和第三信道采用的PUCCH格式为PUCCH格式3或PUCCH格式4时，可以将第二信道上将要承载的UCI映射到第一信道和/或第三信道上进行传输。因为PUCCH格式3或PUCCH格式4能够承载较多的比特。
当该PUCCH(第二信道)的优先级高于或等于第一信道的优先级和第三信道的优先级时，终端设备不取消在第二时间单元中的每个第一符号向网络设备发送第二信号，即终端设备在第二时间单元中的每个第一符号向网络设备发送第二信号，可以保证比较重要的 (高优先级的)信号的传输，此时，基站不做联合信道估计。当该PUCCH(第二信道)的优先级高于或等于第一信道的优先级和第三信道的优先级时，也可以取消在第二时间单元中的每个第一符号向网络设备发送第二信号，并将PUCCH上将要承载的UCI映射到第一信道和/或第三信道上进行传输，有利于基站做联合信道估计。本申请实施例对此不做具体限定。
示例性地，当第二信号为探测参考信号SRS时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。或者，当第一信道和第三信道的优先级高于或等于第一门限值时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。或者，当第二信号为探测参考信号SRS，且第一信道和第三信道的优先级高于或等于第一门限值时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。例如，第一门限值为0，当第一信道和第三信道的优先级为1时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号；当第一信道和第三信道的优先级为0时，终端设备可以在第二时间单元中的第一符号向网络设备发送第二信号。又例如，第一门限值为0，当第二信号为探测参考信号SRS、第一信道和第三信道的优先级为1时，取消SRS的传输；当第二信号为探测参考信号SRS、第一信道和第三信道的优先级为0时，可以仅取消部分第一符号上的SRS传输，也可以不取消SRS的传输。
在另一种实现方式中，终端设备可以取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号，该N个符号是连续的，且该N个符号中的最后一个符号与第三时间单元中的第一个符号是连续的，其中，第二时间单元中包括M个符号，M大于或等于N，N和M为正整数。N个符号为终端设备进行本地振荡器重调(local oscillator retuning，LO retuning)所需的符号数，也可以理解为，N个符号是终端设备对上行传输信号的相位和幅度进行调整所需的符号数。
其中，N可以是终端设备根据自身的能力信息确定的，N也可以是终端设备根据网络设备通过无线资源控制(radio resource control，RRC)信令配置的参数信息确定的。在第三时间单元之前的N个符号上不做上行传输，能够使终端设备在这些符号上进行本地振荡器重调，从而使在该第三时间单元发送的第二DMRS与第一DMRS的相位和幅度保持连续性。
应理解，当第二时间单元中包括的符号数M小于或等于N时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号。对应地，网络设备取消在第二时间单元中的N个符号中的每个第一符号接收第二信号。
可选的，当基站确定第一时间单元和第三时间单元之间的第二时间单元中的N个符号上没有终端设备的上行传输以及下行传输，N个符号是连续的，且N个符号中的最后一个符号与第三时间单元中的第一个符号是连续的，基站可以根据终端设备在第一信道所在的第一时间单元发送的第一DMRS和终端设备在第三信道所在的第三时间单元发送的第二DMRS进行联合信道估计；否则，基站不能进行联合信道估计。
可选的，当基站确定第一时间单元和第三之间单元之间的第二时间单元中的每个符号没有终端设备的上行传输以及下行传输时，基站可以根据终端设备在第一信道所在的第一时间单元发送的第一DMRS和终端设备在第三信道所在的第三时间单元发送的第二DMRS进行联合信道估计；否则，基站不能进行联合信道估计。
如图6所示，出示了一种取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号的示意图。假设N等于3，M等于6。若第二时间单元中的第二个符号和第四个符号为原本有上行传输的符号，则取消在第四个符号向网络设备发送第二信号。该情况下，该第二个符号和第四个符号称为第一符号。
如图7所示，出示了一种取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号的示意图。假设N等于3，M等于6。若第二时间单元中的第一个符号至第六个符号为原本有上行传输的符号，则取消在第四个符号至第六个符号向网络设备发送第二信号。该情况下，第一个符号、第二个符号、第三个符号、第四个符号、第五个符号和第六个符号称为第一符号。
示例性地，第二信道位于第二时间单元，该第二信道为物理上行控制信道PUCCH。当该PUCCH(第二信道)的优先级低于或等于第一信道的优先级时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。或者，当该PUCCH(第二信道)的优先级低于或等于第三信道的优先级时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。或者，当该PUCCH(第二信道)的优先级低于或等于第一信道的优先级和第三信道的优先级时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。其中，第一信道和第三信道可以为同一PUCCH的两次重复，也可以为同一PUSCH的两次重复；第一信道和第三信道也可以是不同的信道，例如，第一信道和第三信道可以是承载了不同传输块的PUSCH，或，第一信道和第三信道可以是承载了不同传输块的PUCCH。
可选的，终端设备可以在第一信道上发送PUCCH(第二信道)上将要承载的UCI，或者，可以在第三信道上发送PUCCH上将要承载的UCI，或者，可以在第一信道和第三信道上发送PUCCH上将要承载的UCI。即，可以将PUCCH承载的上行控制信息通过上行控制信息复用(UCI multiplex)到第一信道和/或第三信道上。从而可以避免因取消在第二时间单元中的上行传输造成的信息遗失，保证UCI信息传输的可靠性。可选的，在第一信道和/或第三信道上发送的UCI可以为第二时间单元中的N个符号中的每个第一符号上将要承载的UCI，也可以为第二时间单元中的每个第一符号上将要承载的UCI。应理解，在第一信道和/或第三信道上发送的UCI为第二时间单元中的N个符号中的每个第一符号上将要承载的UCI时，由于第二时间单元中N个符号之外的符号上将要承载的UCI没有被取消，则第二时间单元中N个符号之外的符号上将要承载的UCI无需映射到第一信道和/或第三信道上。
可选的，当第二信道采用的PUCCH格式为PUCCH格式0、PUCCH格式1或PUCCH格式2时，可以将第二信道上将要承载的UCI映射(复用)到第一信道和/或第三信道上进行传输。因为当第二信道采用的是PUCCH格式为PUCCH格式0、PUCCH格式1或PUCCH格式2时，该UCI占用的比特(bit)较少，第一信道和第三信道可以承载这些比特；当第二信道采用的是PUCCH格式为PUCCH格式3或PUCCH格式4时，该UCI占用的比特比较多，第一信道和第三信道可能无法承载太多的比特。
可选的，第一信道和第三信道可以为PUCCH，若第一信道和第三信道采用的PUCCH格式为PUCCH格式3或PUCCH格式4时，可以将第二信道上将要承载的UCI映射到第一信道和/或第三信道上进行传输。因为PUCCH格式3或PUCCH格式4能够承载较多的 比特。
当该PUCCH(第二信道)的优先级高于或等于第一信道的优先级和第三信道的优先级时，终端设备不取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号，即终端设备在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号，可以保证比较重要的(高优先级的)信号的传输，此时，基站不做联合信道估计。当该PUCCH(第二信道)的优先级高于或等于第一信道的优先级和第三信道的优先级时，也可以取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号，并将PUCCH上将要承载的UCI映射到第一信道和/或第三信道上进行传输，有利于基站做联合信道估计。本申请实施例对此不做具体限定。
示例性地，当第二信号为探测参考信号SRS时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。或者，当第一信道和第三信道的优先级高于或等于第一门限值时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。或者，当第二信号为探测参考信号SRS，且第一信道和第三信道的优先级高于或等于第一门限值时，终端设备取消在第二时间单元中的N个符号中的每个第一符号向网络设备发送第二信号。例如，当第一信道和第三信道的优先级为1时，终端设备取消在第二时间单元中的每个第一符号向网络设备发送第二信号；当第一信道和第三信道的优先级为0时，终端设备可以在第二时间单元中的第一符号向网络设备发送第二信号。又例如，当第二信号为探测参考信号SRS、第一信道和第三信道的优先级为1时，取消SRS的传输；当第二信号为探测参考信号SRS、第一信道和第三信道的优先级为0时，可以仅取消部分第一符号上的SRS传输，也可以不取消SRS的传输。
在一种特殊的情况下，若终端设备取消在第三信道所在的第三时间单元向网络设备发送第二DMRS，则可以不取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号，从而不影响第二时间单元中的至少一个第一符号上的传输。该情况下，基站不做联合信道估计。
上述第一时间单元、第二时间单元以及第三时间单元为进行联合信道估计的时域窗口范围内的时间单元，该时域窗口为进行联合信道估计的时间范围。
如图8所示，出示了一种取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号的示意图。假设联合信道估计的时域窗口中包括4个时间单元，第一时间单元至第四时间单元在该时域窗口内，第五时间单元不在该时域窗口内。终端设备在第一个时间单元和第三个时间单元向网络设备发送用于进行联合信道估计的DMRS，在第二个时间单元中的至少一个第一符号和第四个时间单元中的至少一个第一符号被配置/被指示向网络设备发送第二信号，例如：该第二信号可以为探测参考信号SRS。该情况下，终端设备取消在第二时间单元中的至少一个第一符号向网络设备发送第二信号，以使基站进行联合信道估计。第五信道所在的第五时间单元不在进行联合信道估计的时域窗口范围内，因此，无需取消在第四时间单元中的至少一个第一符号向网络设备发送第二信号。
多个时隙承载一个传输块的情况(transmission block over multiple slots,TBoMS)，其他上行传输位于一个或多个时隙承载一个传输块的一个传输机会(a transmission occasion for TboMS，TOT)或一个时域窗口内的两个PUSCH/PUCCH信道之间，可以取消在一个时域窗口和TOT中两者较小的范围内的连续两个PUSCH/PUCCH中间的其他上行传输。
应理解，上述第一信道和第三信道可能是同一信道的不同重复，也可能为不同信道。
在本申请实施例提供的技术方案中，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS，在第三信道所在的第三时间单元向网络设备发送第二DMRS，并取消在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第一符号向网络设备发送第二信号，可以保证该第一DMRS和第二DMRS的相位和幅度的连续性，从而可以提高信道检测的可靠性。
如图9所示，本申请实施例提出的另一种信道检测的方法900的示意性流程图。
910，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS。该网络设备可以为基站。对应地，网络设备在第一信道所在的第一时间单元接收终端设备发送的第一DMRS。
920，终端设备确定在第二时间单元中的至少一个第二符号向网络设备发送第四信号，该第二时间单元在第一时间单元之后且第二时间单元与第一时间单元是连续的。第四信号是根据第一DMRS确定的。应理解，终端设备取消在第二时间单元中至少一个第二符号外的其他符号进行上行传输，换言之，终端设备不在第二时间单元中至少一个第二符号外的其他符号进行上行传输。对应地，网络设备确定在第二时间单元中的至少一个第二符号接收终端设备发送的第四信号。
930，终端设备在第三信道所在的第三时间单元向网络设备发送第二DMRS，第一DMRS与第二DMRS相关，第三时间单元在第二时间单元之后且第三时间单元与第二时间单元是连续的。网络设备可以根据接收到的第一DMRS和第二DMRS进行联合信道估计。对应地，网络设备在第三信道所在的第三时间单元接收终端设备发送的第二DMRS。网络设备根据第一DMRS和第二DMRS进行信道检测。
具体地，第一DMRS与第二DMRS相关，可以理解为，第一DMRS与第二DMRS的相位差小于或等于第一预设值，第一DMRS与第二DMRS的幅度差小于或等于第二预设值。其中，第一预设值和第二预设值可以是预定义的，也可以是网络设备(基站)确定并指示给终端设备的。
第一信道和第三信道可以为物理上行共享信道PUSCH，第一信道和第三信道也可以为物理上行控制信道PUCCH。可选的，第一信道和第三信道可以是同一信道的两次重复，例如，第一信道和第三信道可以是同一PUSCH的两次重复，或，第一信道和第三信道可以是同一PUCCH的两次重复。第一信道和第三信道也可以是不同的信道，例如，第一信道和第三信道可以是承载了不同传输块的PUSCH，或，第一信道和第三信道可以是承载了不同传输块的PUCCH。
具体地，至少一个第二符号占用的物理资源块(physical resource block，PRB)与第一时间单元占用的物理资源块满足第一预设条件，和/或，第四信号的功率与第一DMRS的功率满足第二预设条件，和/或，至少一个第二符号采用的端口与第一信道采用的端口相同。
其中，第一预设条件可以包括以下一项或多项：至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块相同，或，至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块的大小相同，或，至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块相邻，即至少一个第二符号占用的物理资源块与第一时间单元 占用的物理资源块之间没有其他的物理资源块。
第二预设条件包括第四信号的功率与第一DMRS的功率的差值小于或等于第三预设值。
可选的，第四信号还可以是根据第二DMRS确定的，第四信号也可以是根据第一DMRS和第二DMRS确定的。该第四信号可以为探测参考信号SRS。
可选的，终端设备可以向网络设备上报联合信道估计相关的能力信息，例如，该终端设备可以使在第二时间单元发送的第四信号的功率与其他信道(例如第一信道和第三信道)发送的DMRS的功率相同。基站可以根据终端设备上报的能力信息，确定是否可以进行联合信道估计。
在本申请实施例提供的技术方案中，终端设备在第一信道所在的第一时间单元向网络设备发送第一DMRS，在第三信道所在的第三时间单元向网络设备发送第二DMRS，在第一时间单元和第三时间单元之间的第二时间单元中的至少一个第二符号向网络设备发送第四信号，该至少一个第二符号占用的物理资源块与第一时间单元占用的物理资源块相同，和/或，第四信号的功率与第一DMRS的功率的差值小于或等于第三预设值，可以保证该第一DMRS和第二DMRS的相位和幅度的连续性，从而可以提高信道检测的可靠性。
本申请实施例提出了一种通信装置，如图10所示，出示了本申请实施例的一种通信装置1000的示意性框图。该装置可以应用于图3或图9方法实施例中的终端设备。该通信装置1000包括：
发送单元1010，用于在第一信道所在的第一时间单元向网络设备发送第一解调参考信号DMRS；
确定单元1020，用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，用于确定在所述第二时间单元中的至少一个第二符号向所述网络设备发送第四信号，所述第四信号是根据所述第一DMRS确定的；
所述发送单元1010还用于，在第三信道所在的第三时间单元向所述网络设备发送第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的。
可选的，所述确定单元1020具体用于，取消在所述第二时间单元中的每个第一符号向所述网络设备发送所述第二信号。
可选的，所述确定单元1020具体用于，取消在所述第二时间单元中的N个符号中的每个第一符号向所述网络设备发送所述第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
可选的，所述N是所述终端设备根据自身的能力信息确定的，或者，所述N是所述终端设备根据所述网络设备配置的参数信息确定的。
可选的，所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
可选的，所述确定单元1020用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控 制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
可选的，所述发送单元1010还用于，在所述第一信道和/或所述第三信道上发送所述PUCCH上将要承载的上行控制信息UCI。
可选的，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
可选的，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
可选的，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述确定单元1020用于取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
可选的，所述第一DMRS与所述第二DMRS相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
可选的，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
可选的，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
可选的，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
本申请实施例提出了一种通信装置，如图11所示，出示了本申请实施例的一种通信装置1100的示意性框图。该装置可以应用于图3或图9方法实施例中的网络设备。该通信装置1100包括：
接收单元1110，用于在第一信道所在的第一时间单元接收终端设备发送的第一解调参考信号DMRS；
确定单元1120，用于取消在第二时间单元中的至少一个第一符号接收第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，用于确定在所述第二时间单元中的至少一个第二符号接收所述终端设备发送的第四信号，所述第四信号是根据所述第一DMRS确定的；
所述接收单元1110还用于，在第三信道所在的第三时间单元接收所述终端设备发送的第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的；
处理单元1130，用于根据所述第一DMRS和所述第二DMRS，进行信道检测。
可选的，所述确定单元1120具体用于，取消在第二时间单元中的每个第一符号接收第二信号。
可选的，所述确定单元1120具体用于，取消在第二时间单元中的N个符号中的每个第一符号接收第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与 所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
可选的，所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
可选的，所述确定单元1120用于取消在第二时间单元中的至少一个第一符号接收第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
可选的，所述接收单元1110还用于，在所述第一信道和/或所述第三信道上接收所述PUCCH上将要承载的上行控制信息UCI。
可选的，所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
可选的，所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
可选的，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述确定单元用于取消在第二时间单元中的至少一个第一符号接收第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
可选的，所述第一DMRS与所述第二DMRS相关，包括：所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
可选的，所述第四信号是根据所述第一DMRS确定的，包括：所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
可选的，所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
可选的，所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
本申请实施例提供了一种通信设备1200，如图12所示，出示了本申请实施例的一种通信设备1200的示意性框图。
该通信设备1200包括：处理器1210和收发器1220，所述收发器1220用于接收计算机代码或指令，并传输至所述处理器1210，所述处理器1210运行所述计算机代码或指令，以实现本申请实施例中的方法。该通信设备可以是本申请实施例中的终端设备或网络设备。
上述的处理器1210可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通 用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例还提供了一种计算机可读存储介质，其上存储有用于实现上述方法实施例中的方法的计算机程序。当该计算机程序在计算机上运行时，使得该计算机可以实现上述方法实施例中的方法。
本申请实施例还提供了一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得上述方法实施例中的方法被执行。
本申请实施例还提供了一种芯片，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述芯片执行上述方法实施例中的方法。
应理解，在本申请实施例中，编号“第一”、“第二”…仅仅为了区分不同的对象，比如为了区分不同的时间单元，并不对本申请实施例的范围构成限制，本申请实施例并不限于此。
另外，本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；本申请中术语“至少一个”，可以表示“一个”和“两个或两个以上”，例如，A、B和C中，可以表示：单独存在A，单独存在B，单独存在C、同时存在A和B，同时存在A和C，同时存在C和B，同时存在A和B和C，这七种情况。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，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，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
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，在本申请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。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (32)

  1. 一种信道检测的方法，其特征在于，包括：
    终端设备在第一信道所在的第一时间单元向网络设备发送第一解调参考信号DMRS；
    所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，所述终端设备确定在所述第二时间单元中的至少一个第二符号向所述网络设备发送第四信号，所述第四信号是根据所述第一DMRS确定的；
    所述终端设备在第三信道所在的第三时间单元向所述网络设备发送第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，包括：
    所述终端设备取消在所述第二时间单元中的每个第一符号向所述网络设备发送所述第二信号。
  3. 根据权利要求1所述的方法，其特征在于，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号，包括：
    所述终端设备取消在所述第二时间单元中的N个符号中的每个第一符号向所述网络设备发送所述第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整数。
  4. 根据权利要求3所述的方法，其特征在于，
    所述N是所述终端设备根据自身的能力信息确定的，或者，所述N是所述终端设备根据所述网络设备配置的参数信息确定的。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，
    所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述终端设备在所述第一信道和/或所述第三信道上发送所述PUCCH上将要承载的上行控制信息UCI。
  8. 根据权利要求7所述的方法，其特征在于，
    所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
  9. 根据权利要求7所述的方法，其特征在于，
    所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
  10. 根据权利要求1至5中任一项所述的方法，其特征在于，所述第二信号和/或所 述第四信号为探测参考信号SRS，和/或，所述终端设备取消在第二时间单元中的至少一个第一符号向所述网络设备发送第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述第一DMRS与所述第二DMRS相关，包括：
    所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述第四信号是根据所述第一DMRS确定的，包括：
    所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
  13. 根据权利要求12所述的方法，其特征在于，
    所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；
    所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，
    所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
  15. 一种信道检测的方法，其特征在于，包括：
    网络设备在第一信道所在的第一时间单元接收终端设备发送的第一解调参考信号DMRS；
    所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，所述第二时间单元在所述第一时间单元之后且所述第二时间单元与所述第一时间单元是连续的；或者，所述网络设备确定在所述第二时间单元中的至少一个第二符号接收所述终端设备发送的第四信号，所述第四信号是根据所述第一DMRS确定的；
    所述网络设备在第三信道所在的第三时间单元接收所述终端设备发送的第二DMRS，所述第一DMRS与所述第二DMRS相关，所述第三时间单元在所述第二时间单元之后且所述第三时间单元与所述第二时间单元是连续的；
    所述网络设备根据所述第一DMRS和所述第二DMRS，进行信道检测。
  16. 根据权利要求15所述的方法，其特征在于，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，包括：
    所述网络设备取消在第二时间单元中的每个第一符号接收第二信号。
  17. 根据权利要求15所述的方法，其特征在于，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号，包括：
    所述网络设备取消在第二时间单元中的N个符号中的每个第一符号接收第二信号，所述N个符号是连续的，且所述N个符号中的最后一个符号与所述第三时间单元中的第一个符号是连续的，其中，所述第二时间单元中包括M个符号，M大于N，N和M为正整 数。
  18. 根据权利要求15至17中任一项所述的方法，其特征在于，
    所述第一信道和所述第三信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。
  19. 根据权利要求15至18中任一项所述的方法，其特征在于，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号时，第二信道位于所述第二时间单元，所述第二信道为物理上行控制信道PUCCH，且所述PUCCH的优先级低于或等于所述第一信道的优先级和/或所述第三信道的优先级。
  20. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    所述网络设备在所述第一信道和/或所述第三信道上接收所述PUCCH上将要承载的上行控制信息UCI。
  21. 根据权利要求20所述的方法，其特征在于，
    所述第二信道采用的格式为PUCCH格式0、PUCCH格式1或PUCCH格式2。
  22. 根据权利要求20所述的方法，其特征在于，
    所述第一信道和所述第三信道为PUCCH，所述第一信道和所述第三信道采用的格式为PUCCH格式3或PUCCH格式4。
  23. 根据权利要求15至18中任一项所述的方法，其特征在于，所述第二信号和/或所述第四信号为探测参考信号SRS，和/或，所述网络设备取消在第二时间单元中的至少一个第一符号接收第二信号时，所述第一信道和所述第三信道的优先级高于第一门限值。
  24. 根据权利要求15至23中任一项所述的方法，其特征在于，所述第一DMRS与所述第二DMRS相关，包括：
    所述第一DMRS与所述第二DMRS的相位差小于或等于第一预设值，所述第一DMRS与所述第二DMRS的幅度差小于或等于第二预设值。
  25. 根据权利要求15至24中任一项所述的方法，其特征在于，所述第四信号是根据所述第一DMRS确定的，包括：
    所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块满足第一预设条件，和/或，所述第四信号的功率与所述第一DMRS的功率满足第二预设条件。
  26. 根据权利要求25所述的方法，其特征在于，
    所述第一预设条件包括所述至少一个第二符号占用的物理资源块与所述第一时间单元占用的物理资源块相同或大小相同；
    所述第二预设条件包括所述第四信号的功率与所述第一DMRS的功率的差值小于或等于第三预设值。
  27. 根据权利要求15至26中任一项所述的方法，其特征在于，
    所述第一信道和所述第三信道是同一信道的两次传输，或者，所述第一信道和所述第三信道为不同的信道。
  28. 一种通信装置，其特征在于，包括：至少一个处理器，所述至少一个处理器用于执行权利要求1至14中任一项所述的方法。
  29. 一种通信装置，其特征在于，包括：至少一个处理器，所述至少一个处理器用于 执行权利要求15至27中任一项所述的方法。
  30. 一种通信设备，其特征在于，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如权利要求1至27中任一项所述的方法。
  31. 一种计算机可读存储介质，其特征在于，包括：
    所述计算机可读介质存储有计算机程序；
    所述计算机程序在计算机上运行时，使得计算机执行权利要求1至27中任一项所述的方法。
  32. 一种计算机程序产品，其特征在于，包括计算机程序，当所述计算机程序被执行时，使得如权利要求1至27任一项所述的方法被实现。
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