WO2020142998A1 - Procédé et dispositif d'émission de signaux - Google Patents

Procédé et dispositif d'émission de signaux Download PDF

Info

Publication number
WO2020142998A1
WO2020142998A1 PCT/CN2019/071222 CN2019071222W WO2020142998A1 WO 2020142998 A1 WO2020142998 A1 WO 2020142998A1 CN 2019071222 W CN2019071222 W CN 2019071222W WO 2020142998 A1 WO2020142998 A1 WO 2020142998A1
Authority
WO
WIPO (PCT)
Prior art keywords
time domain
synchronization signal
time
domain resource
physical broadcast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/071222
Other languages
English (en)
Chinese (zh)
Inventor
贾树葱
任占阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2019/071222 priority Critical patent/WO2020142998A1/fr
Priority to CN201980087822.9A priority patent/CN113261258B/zh
Publication of WO2020142998A1 publication Critical patent/WO2020142998A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications, and more specifically, to a method and apparatus for transmitting signals.
  • MulteFire network belongs to the field of wireless communication. MulteFire applies long-term evolution (LTE) technology to unlicensed spectrum, provides high-performance communication services like LTE, and simple deployments like wireless-fidelity (Wi-Fi).
  • LTE long-term evolution
  • Wi-Fi wireless-fidelity
  • the base station sends a discovery signal (discovery, signal, DRS) to the terminal device, so that the terminal device can discover the base station.
  • DRS discovery signal
  • the base station needs to listen before speaking (LBT) before sending the DRS. If LBT fails, the base station cannot send DRS. Therefore, DRS cannot be sent in strict cycles.
  • the MulteFire network proposes a way to send DRS based on the discovery signal measurement timing configuration (DMTC) window. In this transmission method, the network device has fewer opportunities to send DRS or LBT attempts.
  • DMTC discovery signal measurement timing configuration
  • the present application provides a signal transmission method and device. By starting to send the DRS in the first time unit after the successful LBT, it is helpful to improve the chance of sending DRS or the chance of trying LBT.
  • a method for transmitting a signal which includes: a network device performing an LBT detection before listening in a first time unit, where the first time unit is any time unit in a first time domain resource; The device sends a discovery signal DRS starting from the first time unit after successful LBT.
  • the DRS includes a downlink control channel, a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a downlink shared channel.
  • the primary synchronization signal, all The secondary synchronization signal and the time domain resource occupied by the physical broadcast channel are located in the second time domain resource, and the start time corresponding to the primary synchronization signal, the secondary synchronization signal, and the time domain resource occupied by the physical broadcast channel Unit, the starting position corresponding to the second time domain resource is separated by N time units, and N is an integer greater than or equal to 0. Therefore, the network device can perform LBT detection at any time unit, and start to send the DRS signal in the first time unit after the successful LBT, which increases the probability of DRS transmission and increases the number of LBT attempts.
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the physical broadcast channel carries first indication information
  • the first indication information is used to indicate: the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel occupied
  • the starting time unit corresponding to the time domain resource the number of time units spaced from the starting time unit corresponding to the downlink control channel; or, the first indication information is used to indicate: the corresponding to the downlink control channel Start time unit. Therefore, the network device can send the first indication information to the terminal device through the physical broadcast channel, so that the terminal device determines the starting time unit corresponding to the downlink control channel based on the first indication information, so that the downlink control channel can be detected at the corresponding location.
  • the network device sends the discovery signal DRS from the first time unit after the successful LBT, including: the network device starts from the first time unit after the successful LBT The downlink control channel in the DRS.
  • the network device may first send the downlink control channel in the DRS to facilitate detection by the terminal device.
  • the DRS further includes a preamble signal
  • the network device sends a discovery signal DRS starting from the first time unit after the successful LBT, including: the network device starts after the successful LBT Starting from the first time unit, the preamble signal in the DRS is sent; after sending the preamble signal, the network device sends the downlink control channel.
  • the network device may send the preamble signal in the DRS in the first time unit after the successful LBT, and then send the downlink control channel in the subsequent time unit, which helps to save power consumption of the terminal device.
  • the signal transmission method according to the embodiment of the present application is applicable to scenarios with different subcarrier intervals. Under different subcarrier intervals, the number of time units included in the first time domain resource and/or the second time domain resource can be flexibly adjusted.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the first time unit after the successful LBT is the time unit in the first time domain resource, or the first time unit after the successful LBT is the time in the second time domain resource unit.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • a method for transmitting a signal which includes: a terminal device detects a primary synchronization signal and a secondary synchronization signal in a discovery signal DRS in a second time domain resource, where the DRS includes a downlink control channel, The primary synchronization signal, the secondary synchronization signal, the physical broadcast channel and the downlink shared channel; when the terminal device detects the primary synchronization signal and the secondary synchronization signal in the second time domain resource, the terminal device Determining the time domain position for receiving the physical broadcast channel according to the time domain position relationship between the time domain position where the primary synchronization signal and the auxiliary synchronization signal are located, and the time domain position where the physical broadcast channel is located; The terminal device receives the physical broadcast channel at the time domain position for receiving the physical broadcast channel, where the physical broadcast channel carries first indication information, and the first indication information is used for the terminal The device determines a start time unit for detecting the downlink control channel; the terminal device starts the start time unit for detecting the downlink control channel
  • the terminal device when detecting the downlink control channel, does not need to try to detect the downlink control channel in each time unit, and can decide from which time unit to start detecting the downlink control channel based on the content indicated by the first indication information, which can reduce the terminal The device attempts to detect the overhead of the downlink control channel, which helps to save the power consumption of the terminal device.
  • the first indication information is used to indicate: the start time unit corresponding to the time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel, and the The number of time units used to detect the interval between the start time units of the downlink control channel; the method further includes: the number of time units indicated by the terminal device according to the first indication information, and the master The synchronization signal, the auxiliary synchronization signal, and the start time unit corresponding to the time domain resource occupied by the physical broadcast channel determine the start time unit of the time domain resource for detecting the downlink control channel.
  • the terminal device may be based on the interval For the number of time units, the starting time unit for detecting the PDCCH is obtained, so that the PDCCH is detected.
  • the first indication information is used to indicate: the starting time unit for detecting a downlink control channel; the method further includes: the terminal device according to the first indication information To obtain the starting time unit for detecting the downlink control channel. Therefore, if the first indication information directly indicates the starting time unit for detecting the PDCCH, the terminal device may perform PDCCH detection based on the starting time unit for detecting the PDCCH.
  • the first indication information is used to indicate: a frequency domain resource used for detecting a downlink control channel; the method further includes: the terminal device acquiring the data according to the first indication information The frequency domain resource for detecting the downlink control channel is described. Therefore, if the first indication information directly indicates the frequency domain resource for detecting the PDCCH, the terminal device may perform PDCCH detection based on the frequency domain resource for detecting the PDCCH.
  • the frequency domain resource for detecting the downlink control channel may have a preset correspondence with the frequency domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel
  • the method further includes: the terminal device may determine that the terminal is used to detect the downlink according to the frequency domain resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel, and the corresponding relationship Control channel frequency domain resources.
  • the terminal device can Based on the primary synchronization signal, the secondary synchronization signal, and the frequency domain resource occupied by the physical broadcast channel and the corresponding relationship, the frequency domain resource for detecting the PDCCH is obtained, thereby performing the PDCCH detection.
  • the method further includes: the terminal device receives the downlink shared channel according to second indication information carried in the downlink control channel, and the second indication information is used to indicate The time-frequency resources corresponding to the downlink shared channel are described. Therefore, after detecting the PDCCH, the terminal device may detect the PDSCH based on the indication in the PDCCH.
  • the starting time unit for detecting the downlink control channel is located in the first time domain resource.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • a method for transmitting a signal including: a terminal device detecting a downlink control channel in each time unit in a first time domain resource; when the downlink control channel is detected, the terminal device Continue to detect the primary synchronization signal and the secondary synchronization signal within a predetermined time; when the primary synchronization signal and the secondary synchronization signal are detected, the terminal device according to the primary synchronization signal and the secondary synchronization signal, and the The time-domain position relationship of the physical broadcast channel to determine the time-domain position for receiving the physical broadcast channel; the terminal device receives the physical broadcast channel at the time-domain position for receiving the physical broadcast channel; The terminal device detects the downlink shared channel after removing the resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel among the time-frequency resources indicated in the downlink control channel.
  • the terminal device can detect the DRS according to the following process: first detect the downlink control channel, after detecting the downlink control channel, continue to detect the synchronization signal within a predetermined time, and then detect the physical based on the time domain position relationship between the synchronization signal and the physical broadcast channel Broadcast channel, and finally detect the downlink shared channel.
  • the physical broadcast channel does not need to carry the time domain position indicating the downlink control channel, so that the information bits in the physical broadcast channel can be used for other purposes, such as future system enhancements.
  • the detection of the downlink control channel by the terminal device at each time unit in the first time domain resource includes: each time unit of the terminal device at the first time domain resource Detect the preamble signal; after detecting the preamble signal, the terminal device detects the downlink control channel. Therefore, the introduction of the preamble signal helps to save power consumption of the terminal device and avoid unnecessary PDCCH detection by the terminal device.
  • the method further includes: the terminal device determining a second time domain resource according to the time synchronization resource occupied by the primary synchronization signal, the auxiliary synchronization signal, and the physical broadcast channel, wherein, the start time unit corresponding to the time domain resource occupied by the primary synchronization signal, the auxiliary synchronization signal and the physical broadcast channel is separated from the start position corresponding to the second time domain resource by N time units, N is An integer greater than or equal to 0, the time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel is located in the second time domain resource.
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • a communication device including a module for performing the method in the first aspect or any possible implementation manner of the first aspect.
  • a communication device including a module for performing the method in the second aspect or any possible implementation manner of the second aspect, or for performing the third aspect or the third aspect Module of the method in any possible implementation.
  • a communication device may be a network device in the above method design, or a chip provided in the network device.
  • the communication device includes a processor, coupled to a memory, and capable of executing instructions in the memory to implement the method performed by the network device in the first aspect and any possible implementation manner thereof.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device may be a terminal device in the above method design, or a chip provided in the terminal device.
  • the communication device includes: a processor, coupled with a memory, and capable of executing instructions in the memory to implement the second aspect and any one of its possible implementations, or the third aspect and any one of its possible implementations The method performed by the terminal device.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a program which when executed by a processor, is used to execute any method in the first aspect, the second aspect, or the third aspect, and possible implementations thereof.
  • a program product including: program code, when the program code is run by a communication unit, a processing unit or a transceiver, or a processor of a communication device (eg, a network device), such that The communication device performs any of the methods in the first aspect and its possible implementations.
  • a program product includes: program code, when the program code is executed by a communication unit, a processing unit or a transceiver, or a processor of a communication device (for example, a terminal device), such that The communication device performs any one of the methods of the second or third aspect and its possible implementations.
  • a computer-readable storage medium stores a program that causes a communication apparatus (eg, a network device) to perform the above-mentioned first aspect and possible implementations thereof Any method.
  • a communication apparatus eg, a network device
  • a computer-readable storage medium stores a program that causes a communication device (eg, terminal device) to perform the second aspect or the third aspect described above and its possible Any of the embodiments.
  • FIG. 1 is a schematic structural diagram of a mobile communication system applied in an embodiment of the present application
  • FIG. 2 is a schematic diagram of an example of a DRS structure
  • FIG. 3 is a schematic flowchart of a signal transmission method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an example of a signal transmission method using an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another example of a signal transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of still another example of the method for transmitting signals using the embodiment of the present application.
  • FIG. 7 is a schematic diagram of another example of a signal transmission method using an embodiment of the present application.
  • FIG. 8 is a schematic diagram of still another example of a signal transmission method using an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a signal transmission apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a signal transmission device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a signal transmission apparatus according to another embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present application.
  • MulteFire is a long term evolution (LTE) technology that can operate independently in unlicensed and shared spectrum, including the global 5GHz frequency band.
  • LTE long term evolution
  • MulteFire may also apply 5G NR technology to unlicensed spectrum based on the fifth generation (5G) new radio (NR).
  • 5G fifth generation
  • the wireless communication system may be: a global mobile communication (global system for mobile communications, GSM) system, a code division multiple access (code division multiple access (CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) System, general packet radio service (general packet radio service, GPRS), long-term evolution LTE system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), general mobile communication system (universal mobile telecommunications system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future 5th generation (5G) system or new air interface NR, etc.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • general packet radio service general packet radio service
  • GPRS general packet radio service
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX global interconnection microwave access
  • FIG. 1 is a schematic structural diagram of a mobile communication system applied in an embodiment of the present application.
  • the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (such as terminal device 130 and terminal device 140 in FIG. 1).
  • the terminal device is connected to the wireless access network device in a wireless manner
  • the wireless access network device is connected to the core network device in a wireless or wired manner.
  • the core network device and the wireless access network device may be independent and different physical devices, or they may integrate the functions of the core network device and the logical function of the wireless access network device on the same physical device, or may be a physical device It integrates the functions of part of the core network equipment and part of the functions of the wireless access network equipment.
  • the terminal device may be fixed or mobile. It should be understood that FIG. 1 is only a schematic diagram, and the communication system may further include other network devices, such as wireless relay devices and wireless backhaul devices (not shown in FIG. 1 ). The embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices included in the mobile communication system.
  • the terminal equipment in the embodiments of the present application may refer to user equipment (user equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal (Terminal ), wireless communication equipment, user agents or user devices.
  • Terminal devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDAs), and wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communication networks (PLMN) in the future evolution
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • the terminal device and the like are not limited in this embodiment of the present application.
  • the wireless access network device is an access device or network device that the terminal device accesses to the mobile communication system in a wireless manner.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global mobile communication (global system for mobile communications, GSM) system or code division multiple access (code division multiple access, CDMA)
  • the base station (base transceiver) (BTS) in the system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved) in the LTE system NodeB, eNB or eNodeB), or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and future Network devices in a 5G network or network devices in a PLMN network that will evolve in the future are not limited in the embodiments of the present
  • the core network equipment includes, for example, mobility management entity (MME), broadcast multicast service center (broadcast multicast service center, BMSC), etc., or may also include corresponding functional entities in the 5G system, such as the core network control plane (control Plane, CP) or user plan (UP) network functions, such as session management network function (session management NF, SMF), access and mobility management function (access and mobility management function, AMF), etc.
  • the core network control plane may also be understood as a core network control plane function (control plane function, CPF) entity.
  • Wireless access network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water; it can also be deployed on aircraft, balloons and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the wireless access network device and the terminal device.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes central processing unit (CPU), memory management unit (memory management unit, MMU), and memory (also called main memory) and other hardware.
  • the operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • the application layer includes browser, address book, word processing software, instant messaging software and other applications.
  • the embodiment of the present application does not specifically limit the specific structure of the execution body of the method provided in the embodiment of the present application, as long as it can run the program that records the code of the method provided by the embodiment of the present application to provide according to the embodiment of the present application
  • the method may be used for communication.
  • the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as methods, devices, or articles using standard programming and/or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CD), digital universal discs (digital) discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the embodiment of the present application uses the downlink control channel as a physical downlink control channel (PDCCH) as an example for description, but does not limit the embodiment of the present application.
  • the downlink control channel may also be defined For other terms or concepts, the technical solutions of the embodiments of the present application are applicable.
  • the downlink control channel and the PDCCH may be used interchangeably, and the PDCCH may be considered as an example description of the downlink control channel.
  • the embodiment of the present application uses the downlink shared channel as a physical downlink shared channel (physical downlink shared channel, PDSCH) as an example for description, but does not limit the embodiment of the present application.
  • the downlink shared channel may also be
  • the definitions are other terms or concepts, which are applicable to the technical solutions of the embodiments of the present application.
  • the downlink shared channel and the PDSCH may be used interchangeably, and the PDSCH may be considered as an example description of the downlink shared channel.
  • the physical broadcast channel (PBCH) is used as an example for description, but does not limit the embodiments of the present application.
  • the physical broadcast channel may also be defined as other terms Or concepts, the technical solutions of the embodiments of the present application are applicable.
  • the physical broadcast channel and the PBCH may be used interchangeably, and the PBCH may be considered as an example description of the physical broadcast channel.
  • the discovery signal indicates the discovery signal in MulteFire.
  • the network device sends the DRS signal to the terminal device, so that the terminal device can discover the network device.
  • FIG. 2 shows a schematic diagram of an example of the DRS structure.
  • the DRS signal may include: primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS), physical broadcast channel PBCH, physical downlink control channel PDCCH, physical downlink shared channel PDSCH, etc. Signal or channel.
  • 14 symbols correspond to a 1ms subframe
  • the DRS signal occupies 12 symbols, and the other two symbols are blank.
  • the time domain position relationship between the symbols where the PSS and SSS are located and the symbols where the PBCH is located may be as shown in FIG. 2, but the embodiments of the present application are not limited thereto.
  • the primary synchronization signal PSS is composed of a sequence of a specific sequence length. Different PSS sequences represent different physical-layer cell identities (PCI) in a physical-layer cell-identity group (physical-layer cell-identity) group.
  • PCI physical-layer cell identities
  • the primary synchronization signal PSS is mapped onto the #th symbol of the #slot. More specifically, the primary synchronization signal sequence (PSS sequence) is mapped to some (continuous/non-contiguous) resource elements (RE) of the #th symbol of the #slot (slot).
  • RE resource elements
  • # can be understood as the number of resources (such as time slots or symbols). In the embodiment of the present application, the value of "#” is not specifically limited, and the value of "#” may be determined according to actual needs.
  • the secondary synchronization signal SSS consists of a sequence with a specific sequence length, and different SSS sequences represent different physical-layer cell identification groups (physical-layer cell-identity groups).
  • the secondary synchronization signal SSS is mapped to the #th symbol of the #slot. More specifically, the secondary synchronization signal sequence (SSS sequence) is mapped to some (continuous/non-contiguous) resource units RE of the #th symbol in the #slot.
  • PSS and SSS The role of PSS and SSS is that terminal devices can discover network devices, and enable terminal devices to establish frequency and time domain synchronization with network devices. When the terminal device is turned on, it needs to search in the frequency domain where PSS and SSS may occur. The terminal device can also continuously search for neighboring cells during the movement, obtain synchronization and estimate the reception quality of the cell signal, thereby deciding whether to perform handover or cell reselection.
  • PSS and SSS may be included in the synchronization signal.
  • the key information of the cell can be carried in the PBCH.
  • the PDSCH channel also carries some information about the cell served by the network device.
  • the PDCCH channel is used to indicate scheduling information of the PDSCH channel, that is, the control information in the PDCCH channel indicates information such as time-domain resources, frequency-domain resources, and data transmission methods used by the PDSCH channel.
  • the key cell information in the PBCH and the cell information in the PDSCH are used by the terminal device to obtain the cell configuration.
  • the terminal device sends random access to the network device based on the information to establish a connection with the network device.
  • Listen before talk refers to a device that needs to transmit data needs to detect the wireless environment of the wireless carrier before sending data on a wireless carrier to determine whether other devices are transmitting data.
  • Random backoff means that once the unlicensed spectrum devices (such as Wi-Fi devices, MulteFire devices) detect that the channel is "clean", there will be an additional, randomly selected waiting time. During this time, if the channel is still "clean", the device will select the channel. When the device selects a random waiting time, it needs to choose between a specified minimum and maximum value, and the range specified by the minimum and maximum value is called a contention window (CW). If the device discovers that there is a channel conflict, it will increase this contention window, so that when the device randomly selects the back-off waiting time again, the probability of obtaining a larger value increases. If the device does not find a channel conflict, it will reduce the contention window.
  • CW contention window
  • the embodiment of the present application proposes a method of transmitting a signal, by starting to send DRS in the first time unit after the successful LBT, the probability of sending is increased.
  • FIG. 3 shows a schematic flowchart of a signal transmission method 300 according to an embodiment of the present application. As shown in FIG. 3, the method 300 includes:
  • the network device performs LBT detection after listening to the first time unit.
  • the first time unit is any time unit in the first time domain resource.
  • the first time domain resource may include multiple time units.
  • the time length of the first time domain resource under different sub-carrier spacings may be different.
  • the first time-domain resource may be a slot composed of 14 symbols, and the first time-domain resource duration (that is, the length of time) is 1 Milliseconds (ms);
  • the subcarrier spacing used is 30 kHz, the first time domain resource may be a slot composed of 14 symbols, in which case the first time domain resource duration is 0.5 milliseconds, etc.
  • the technical solutions of the embodiments of the present application are applicable to multiple subcarrier intervals, for example, 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc., under different subcarrier intervals, the duration corresponding to the first time domain resource may have Different values are not specifically limited.
  • the embodiment of the present application does not limit the specific form of the first time domain resource, for example, it may be a frame, a wireless frame, a system frame, a subframe, a half frame, a time slot, a mini slot, a symbol, or a custom Length of time, etc.
  • the embodiment of the present application does not specifically limit the time granularity of the time unit.
  • the time unit may be a symbol and may be determined based on specific requirements.
  • the network device can perform LBT detection at any time unit.
  • the network device may adopt the LBT method in category 2 to perform LBT detection.
  • the network device sends a discovery signal DRS starting from the first time unit after the successful LBT.
  • the DRS includes a downlink control channel, a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a downlink shared channel.
  • the time domain resources occupied by the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel are located in the second time domain resources, and the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel are occupied
  • the starting time unit corresponding to all the time domain resources of the is separated from the starting position corresponding to the second time domain resource by N time units, and N is an integer greater than or equal to 0.
  • the terminal device performs corresponding detection on the DRS (the specific implementation of the terminal device is described below).
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the value of N may be pre-defined by the protocol, or the network device sends it to the terminal device through the physical broadcast channel, which is not limited.
  • the embodiment of the present application does not limit the specific form of the second time domain resource, for example, it may be a frame, a wireless frame, a system frame, a subframe, a half frame, a time slot, a mini slot, a symbol, or a custom Length of time, etc.
  • the network device may start to send the downlink control channel (for example, PDCCH) in the discovery signal DRS from the first time unit after the successful LBT, and then send the downlink shared channel (for example, PDSCH) in the discovery signal DRS. That is to say, the transmission positions of the PDCCH and PDSCH related to the system information in the discovery signal DRS are related to the LBT success time, so as to ensure that the network device can transmit the DRS as soon as possible after the successful LBT.
  • the downlink control channel for example, PDCCH
  • PDSCH downlink shared channel
  • the time unit of the interval between time domain resources is fixed (different fixed values can be taken for different subcarrier intervals, bandwidths or operating frequency bands, please refer to the description of the prior art for details), and will not follow It changes with the success time of LBT, so as not to affect the measurement behavior of the terminal device in the connected state.
  • the starting time unit corresponding to the resource used to transmit the DRS is the first time unit after the network device performs the listening first and then the detection is successful.
  • the resources used for transmitting DRS refer to the resources occupied by transmitting DRS.
  • the starting time unit corresponding to the DRS transmission resource in the time domain is the first time unit after the network device LBT succeeds.
  • the transmission time required by the DRS is a fixed value less than 1 ms, that is to say, the time for the network device to transmit the DRS may be a fixed value less than 1 ms.
  • the embodiment of the present application is not limited, and the length of time required for DRS may be equal to 1 ms, or other fixed values.
  • the network device may use category 2LBT. For example, if the transmission time required by the DRS is 1 ms, then the time length corresponding to the resources for transmitting the DRS is 1 ms.
  • the network device can perform LBT detection on any one time unit, and there is no need to limit the LBT to a fixed time domain position, which increases the number of LBT attempts.
  • the network device can start sending the DRS to the terminal device at the first time unit after the successful LBT, thereby improving the chance of sending the DRS.
  • the first time domain resource and the second time domain resource may be continuous time domain resources.
  • FIG. 4 shows that the first time domain resource is the nth slot, the second time domain resource is the n+1th slot, and the time domain resource occupied by the DRS transmission resource spans the nth slot and the n+1th slot.
  • the slot and the n+2th slot are used as examples for description.
  • the first time unit may be any symbol in the nth slot.
  • the network device successfully detects Cat.2LBT on a symbol in the nth slot, and then starts to transmit the PDCCH in the DRS on the first symbol after the successful LBT.
  • the time domain resources occupied by PSS, SSS and PBCH are on the 3rd, 4th, 5th and 6th symbols in the n+1th slot.
  • the PDSCH scheduling is indicated in the PDCCH, and the PDSCH is not carried in the time-domain resources occupied by the PSS, SSS, and PBCH.
  • the first time domain resource and the second time domain resource may be discontinuous time domain resources. If the first time domain resource and the second time domain resource are discontinuous time domain resources, there is a certain interval between the first time domain resource and the second time domain resource (for example, the interval of # time domain resources).
  • the first time unit after the successful LBT is the time unit in the first time domain resource, or the LBT succeeds The first time unit after is the time unit in the second time domain resource. That is to say, the first unit after the successful LBT of the network device may be in the first time domain resource or the second time domain resource, then the network device will start to send the DRS in the corresponding time unit.
  • the first time domain resource and the second time domain resource may be the same time domain resource.
  • the network device attempts to perform LBT detection on any symbol in the n+1th slot, and succeeds in LBT on the second symbol in the n+1th slot.
  • the network device starts sending DRS on the third symbol of the n+1th slot, then the time domain resources occupied by PSS, SSS, and PBCH are in the n+1th slot, and the time domain resources occupied by PSS, SSS, and PBCH
  • the boundary of the n+1th slot is a certain time unit.
  • the embodiment of the present application does not limit the number of time units spaced between the time domain resources occupied by the PSS, SSS, and PBCH, and the boundary of the n+1th slot.
  • the first time domain resource and the second time domain resource are continuous resources.
  • the network device attempts to perform LBT detection on any symbol in the nth slot (corresponding to the first time domain resource), and the last symbol LBT in the nth slot succeeds, that is, in the LBT succeeded before the first symbol of n+1 slots.
  • the network device starts sending DRS on the first symbol of the n+1th slot (corresponding to the second time domain resource), then the time domain resources occupied by PSS, SSS, and PBCH are in the n+1th slot, PSS, SSS
  • the time domain resources occupied by the PBCH are separated from the boundary of the n+1th slot by a certain time unit.
  • the physical broadcast channel carries first indication information
  • the first indication information is used to indicate: the primary synchronization signal, the secondary synchronization signal, and the time domain occupied by the physical broadcast channel
  • the first indication information is used to indicate: a start time unit corresponding to the downlink control channel.
  • the network device delivers the first indication information to the terminal device through the physical broadcast channel.
  • the first indication information may directly indicate the starting time unit corresponding to the downlink control channel, or the first indication information may also be indirectly. Indicates the starting time unit corresponding to the downlink control channel.
  • the first indication information may indicate: the number of time units between the time unit corresponding to the PSS and the start time unit corresponding to the PDCCH, or the time unit corresponding to the SSS The number of time units between the start time units corresponding to the PDCCH, or when the PSS, SSS, and PBCH are viewed as a whole, the start time unit corresponding to the time domain resource occupied by the whole and the start time corresponding to the PDCCH The number of time units between units.
  • the first indication information directly or indirectly indicates the position of the downlink control channel, which may indicate that the downlink control channel is located before, after, and during the unit composed of PSS, SSS, and PBCH, which is not specifically limited.
  • the PDCCH is located in front of the whole composed of PSS, SSS and PBCH, but it does not exclude the case where the PDCCH is located behind the whole composed of PSS, SSS and PBCH.
  • a possible PDCCH format at this time is shown in FIG. 7 .
  • the whole of PSS, SSS and PBCH is located in the third to sixth symbols in the n+1th slot, and the PDCCH is located in the seventh and eighth symbols in the n+1th slot That is, the PDCCH is located behind the whole composed of PSS, SSS, and PBCH.
  • the first indication information is used to indicate: a frequency domain resource corresponding to the downlink control channel.
  • the network device delivers first indication information to the terminal device through the physical broadcast channel, and the first indication information may be used to indicate: the frequency domain resource used to detect the downlink control channel.
  • the first indication information may not be used to indicate: a frequency domain resource corresponding to the downlink control channel.
  • the frequency domain resource for detecting the downlink control channel may be preset, and there is a correspondence between the primary synchronization signal, the secondary synchronization signal, and the frequency domain resource occupied by the physical broadcast channel , That is, one or more correspondences; for example, in FIG.
  • the frequency domain resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel the frequency domain resources corresponding to the downlink control channel
  • the center frequency point of is the same, and the frequency domain bandwidth of the frequency domain resource corresponding to the downlink control channel is a preset 20MHz.
  • the first indication information indicates a starting time unit corresponding to the downlink control channel
  • the frequency domain resource corresponding to the downlink control channel may be obtained through a preset correspondence.
  • the starting time unit corresponding to the downlink control channel may also be obtained through a preset correspondence relationship , This is not limited.
  • the first indication information not only indicates the starting time unit corresponding to the downlink control channel, but also indicates the frequency domain resource corresponding to the downlink control channel.
  • the terminal device performs the following methods:
  • the terminal device detects the primary synchronization signal and the secondary synchronization signal in the discovery signal DRS in the second time domain resource, where the DRS includes a downlink control channel, the primary synchronization signal, the secondary synchronization signal, a physical broadcast channel and Downlink shared channel;
  • the terminal device When the terminal device detects the primary synchronization signal and the secondary synchronization signal in the second time domain resource, the terminal device determines, based on the time domain position where the primary synchronization signal and the secondary synchronization signal are located, and The time domain position relationship between the time domain positions where the physical broadcast channel is located, determining the time domain position for receiving the physical broadcast channel;
  • the terminal device receives the physical broadcast channel at the time domain position for receiving the physical broadcast channel, where the physical broadcast channel carries first indication information, and the first indication information is used to The terminal device notifies the start time unit for determining the time domain resource for detecting the downlink control channel;
  • the terminal device starts detecting the downlink control channel from the starting time unit for detecting the downlink control channel.
  • the terminal device may detect the second time domain resource to determine whether PSS and SSS exist. If PSS and SSS are detected, the terminal device determines the time domain position for receiving the PBCH based on the time domain position relationship between the time domain position where the PSS and SSS are located and the time domain position where the PBCH is located. The time domain position relationship between the PSS and SSS and the time domain position where the PBCH is located can be referred to the example in FIG. 2 above.
  • the terminal device receives the PBCH at the time domain position used for the PBCH, and demodulates the PBCH to obtain the first indication information carried in the PBCH.
  • the terminal device determines the starting time unit for detecting the PDCCH based on the first indication information.
  • the terminal device may be based on the first indication information or the preset frequency domain resource for detecting the downlink control channel and the frequency domain occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel
  • the correspondence between resources determines the frequency domain resources of the PDCCH.
  • the terminal device starts to detect the PDCCH in the frequency domain resource of the PDCCH starting from the starting time unit for detecting the PDCCH.
  • the terminal device may receive the PDSCH channel according to the indication in the PDCCH.
  • the terminal device obtains the system information of the cell carried in the PBCH and PDSCH, knows how the cell is configured, and then accesses the cell.
  • the starting time unit of the downlink control channel may be before the time domain positions of the primary synchronization signal, the secondary synchronization signal, the physical broadcast channel, and the downlink shared channel. Therefore, the terminal device needs to perform data for a period of time Cache. After receiving the start time unit of detecting the time domain resource of the downlink control channel notified by the first indication information, the terminal device detects the downlink control channel in the buffered data or the received data.
  • the first indication information may directly indicate the starting time unit corresponding to the PDCCH, or may indirectly indicate the starting time unit corresponding to the PDCCH.
  • the terminal device may directly detect the PDCCH on the corresponding time domain position based on the first indication information.
  • the terminal device may first An indication of the indication information, combined with the start time unit corresponding to the time domain resource where the PSS, SSS and PBCH are located, determines the start time unit for detecting the PDCCH, and then performs the PDCCH detection. For example, for the example in FIG. 4, any symbol in any slot of the PDCCH can be a start time unit.
  • the first indication information can be indicated by 4 bits (the reason for choosing 4 bits here is: 2 of 4 The power is greater than 14).
  • the number of time units between the end time unit corresponding to the PDCCH and the start position of the PSS may be other cases, for example, a multiple of 2 between 0 and 26 (including 0 and 26).
  • the number of time units corresponding to the end time unit corresponding to the PDCCH and the start position interval of the PSS is a multiple of 2 between 0 and 26 (including 0 and 26), there may still be 14 symbol intervals between the PSS and the PDCCH
  • 4 bits may be used for indication. It should be understood that the first indication information may also use other numbers of bits to indicate other numbers, which is not specifically limited in this embodiment of the present application.
  • the time unit for detecting the PDCCH may be located in the first time domain resource. As shown in the example in FIG. 4, the time unit for detecting the PDCCH may be located in the nth slot.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the terminal device may receive the PDSCH based on the indication in the PDCCH (such as second indication information).
  • the second indication information may indicate that the time-frequency resource corresponding to the PDSCH is detected.
  • the terminal device obtains the time domain position of the PDCCH detection through the first indication information carried in the PBCH, and does not need to try to receive the PDCCH at each time domain position (such as a symbol), reducing The processing overhead and energy consumption of the terminal device trying to receive the PDCCH are reduced, which helps reduce the power consumption of the terminal device.
  • the physical broadcast channel may not carry the first indication information.
  • the terminal device performs the following methods:
  • the terminal device detects the downlink control channel in each time unit in the first time domain resource
  • the terminal device When the downlink control channel is detected, the terminal device continues to detect the primary synchronization signal and the secondary synchronization signal within a predetermined time;
  • the terminal device determines, based on the time-domain positional relationship between the primary synchronization signal and the secondary synchronization signal and the physical broadcast channel, the Describe the time domain position of the physical broadcast channel;
  • the terminal device receives the physical broadcast channel at the time domain position for receiving the physical broadcast channel
  • the terminal device detects the downlink shared channel after removing the resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel among the time-frequency resources indicated in the downlink control channel.
  • the transmission resources indicated in the downlink control channel refer to resources used to transmit the downlink shared channel.
  • the terminal device can perform PDCCH detection at each time unit in the first time-domain resource, and after detecting the PDCCH, can perform subsequent predetermined time (for example, 1ms or less than 1ms time) Length, or other length of time) signals.
  • the terminal device performs PSS and SSS detection on the signal within a predetermined time.
  • the terminal device After detecting the PSS and SSS, the terminal device can determine the time domain position of the received PBCH based on the PSS and SSS, and the time domain position relationship with the PBCH, and receive the PBCH at the time domain position of the received PBCH.
  • the terminal device receives the PDSCH on the remaining resources after subtracting the resources occupied by the PSS, SSS, and PBCH according to the resources occupied by the PDSCH indicated in the PDCCH.
  • the terminal device obtains the system information of the cell carried in the PBCH and PDSCH, knows how the cell is configured, and then accesses the cell.
  • the network device may add a signal in one or several time units before the downlink control channel, so that the terminal device determines whether the PDCCH exists in the next time unit based on the signal.
  • the terminal device may first detect the segment of the signal, and after detecting the segment of the signal, it may be known whether the PDCCH exists subsequently, Then continue to detect PDCH.
  • the one-stage signal may be a preset signal that is convenient for detection by the terminal device. The power consumption of the terminal device to detect the PDCCH is relatively large. Here, the introduction of this segment of signal helps to save power consumption of the terminal device and avoid unnecessary PDCCH detection by the terminal device.
  • the one-stage signal may be a preamble signal.
  • the preamble signal may be a dedicated signal set specifically for DRS, or may be set for all or a certain type of transmission of the system in the unlicensed spectrum.
  • the preamble sequence may be a Zadoff-Chu (ZC) sequence with a certain sequence length, and the terminal device detects the sequence to determine whether the PDCCH exists in the next time unit.
  • ZC Zadoff-Chu
  • the preamble sequence may also be other sequences or signals, which is not specifically limited in this embodiment of the present application.
  • the structure of the DRS also changes. Specifically, after the LBT succeeds, the network device first sends the preamble sequence and then sends the PDCCH.
  • the subsequent structure of the DRS is similar to the structure of the previous DRS. As shown in FIG. 8, after the seventh symbol LBT in the nth slot is successful, the network device may first send the preamble sequence in the eighth symbol in the nth slot, and then start to send the signal in the DRS.
  • the terminal device determines a second time domain resource based on the primary synchronization signal, the secondary synchronization signal, and all time domain resources occupied by the physical broadcast channel, where the primary synchronization signal, the The secondary synchronization signal and the start time unit corresponding to all time domain resources occupied by the physical broadcast channel are separated from the start position corresponding to the second time domain resource by N time units, and N is an integer greater than or equal to 0.
  • the time domain resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel are located in the second time domain resource, where the value of N may be a fixed value set in advance; or, the physical broadcast The specific value of N is carried in the channel.
  • the terminal device determines the second time domain resource according to the PSS, SSS, and PBCH, including: the terminal device may determine the starting position of the second time domain resource based on the time domain location where the PSS, SSS, and PBCH are located. More specifically, if the time domain position of the PSS is before the time domain position of the SSS and PBCH, the terminal device may determine the starting position of the second time domain resource based on the time domain position of the PSS. For the example in FIG. 4, the terminal device may determine the boundary symbol of the n+1th slot based on the symbol corresponding to the PSS.
  • the terminal device can determine the starting position of the second time domain resource based on the time domain position of the PSS, SSS, and PBCH, because: the time domain position of the PSS, SSS, and PBCH, There is a fixed time unit with the starting position of the second time domain resource, and the fixed time unit may be predefined by the protocol.
  • the value of the fixed time unit may depend on one or more of the following: subcarrier spacing, bandwidth, operating frequency band, and so on.
  • PSS, SSS, and PBCH may form an SS/PBCH block, or a synchronization signal block (SSB).
  • SSB positions in a slot are different at different subcarrier intervals and operating frequency bands.
  • FIGS. 4 to 8 are only for the convenience of those skilled in the art, and do not limit the embodiments of the present application.
  • Those skilled in the art can flexibly adjust the number of symbols of the slot based on the changes of the subcarrier interval and/or bandwidth based on the examples in FIGS. 4 to 8, and can also flexibly adjust the first time domain resource and/or the second time domain
  • the number of slots included in the resource may also limit that only a part of the slots in the system can be used as the first time domain resource and/or the second time domain resource, so as to adjust the position of sending the DRS, and these changes or transformations all fall into the embodiments of the present application Scope of protection.
  • FIG. 9 shows an example diagram of various types of SSB candidate positions in a slot.
  • SSB is on the 2nd, 3rd, 4th, 5th, or 8th, 9th, 10th, and 11th symbols of a slot (slot#), where the slot is composed of 14 symbols.
  • the carrier interval is 15 kHz, and the length of a slot is 1 ms.
  • SSB is on the 4th, 5th, 6th, 7th, or 8th, 9th, 10th, and 11th symbols of a slot(slot#), or SSB is on the 2nd, 3rd, 4th of a slot(slot#+1) , 5 or the 6th, 7th, 8th, and 9th symbols, where the slot consists of 14 symbols, the subcarrier spacing is 30kHz, and the length of one slot is 0.5ms.
  • SSB is on the 2nd, 3rd, 4th, 5th, or 8th, 9th, 10th, and 11th symbols of a slot (slot# or slot#+1), and the slot consists of 14 symbols.
  • the carrier interval is 30 kHz, and the length of one slot is 0.5 ms.
  • SSB is on the 4th, 5th, 6th, 7th, or 8th, 9th, 10th, and 11th symbols of a slot(slot#), or SSB is on the 2nd and 3rd of a slot(slot#+1) , 4, 5, or the sixth, seventh, eighth, and ninth symbols, where the slot is composed of 14 symbols, and the subcarrier spacing is 120 kHz, and the length of one slot is 0.125 ms ⁇ .
  • SSB is on the 8th, 9th, 10th, 11th, or 12th, 13th, 0,1 or 2nd, 3rd, 4th, 5th, or 6th, 7th of two consecutive slots (slot# and slot#+1).
  • 8 9 symbols, or SSB on the 4th, 5th, 6th, 7th or 8th, 9th, 10th, 11th or 12th, 13th, 0 of two consecutive slots (slot#+2 and slot#+3) , 1 or the 2nd, 3rd, 4th, and 5th symbols, where the slot consists of 14 symbols, the subcarrier spacing is 240kHz, and the duration of one slot is 0.0625ms.
  • the terminal device can obtain the slot boundary based on the position of the SSB candidate position in a slot.
  • the PBCH may not carry the first indication information.
  • the information bits in the PBCH can be reserved for other uses, such as future system enhancements.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the technical solutions of the embodiments of the present application are not only applicable to the LBT of Strategy 2, but also applicable to other LBT modes.
  • the network device adopts other LBT methods.
  • the time for sending the DRS may be less than or equal to 1 ms, or the time for sending the DRS may be other fixed values, which is not limited.
  • FIGS. 4 to 9 are only for the convenience of those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the illustrated specific scenarios. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples of FIGS. 4 to 9, and such modifications or changes also fall within the scope of the embodiments of the present application.
  • FIG. 10 shows a schematic block diagram of a signal transmission apparatus 1000 according to an embodiment of the present application.
  • the apparatus 1000 is used to execute the method performed by the network device in the foregoing method embodiment.
  • the specific form of the apparatus 1000 may be a network device or a chip in the network device. This embodiment of the present application does not limit this.
  • the device 1000 includes:
  • the processing module 1010 is configured to perform listening first and then speaking LBT detection in a first time unit, where the first time unit is any time unit in the first time domain resource;
  • the transceiver module 1020 is used to send a discovery signal DRS starting from the first time unit after the successful LBT.
  • the DRS includes a downlink control channel, a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a downlink shared channel.
  • time domain resources occupied by the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel are located in the second time domain resources, and the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel are occupied
  • the starting time unit corresponding to the time domain resource is N time units apart from the starting position corresponding to the second time domain resource, and N is an integer greater than or equal to 0.
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the physical broadcast channel carries first indication information, and the first indication information is used to indicate: the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel occupation The starting time unit corresponding to the time-domain resource, and the number of time units between the starting time unit corresponding to the downlink control channel; or,
  • the first indication information is used to indicate: a start time unit corresponding to the downlink control channel.
  • the transceiver module 1020 is configured to send a discovery signal DRS from the first time unit after the successful LBT, which specifically includes:
  • the downlink control channel in the DRS is sent.
  • the DRS further includes a preamble signal;
  • the transceiver module 1020 is configured to send a discovery signal DRS from the first time unit after the successful LBT, specifically including:
  • the downlink control channel is sent again.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the first time unit after the successful LBT is the time unit in the first time domain resource, or the first time unit after the successful LBT is the second Time units in time domain resources.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the signal transmission apparatus 1000 may correspond to the method of the network device in the foregoing method embodiment, for example, the method of the network device in FIG. 3, and the above and other management operations of each module in the apparatus 1000 And/or functions are to implement the corresponding steps of the method of the network device in the foregoing method embodiments, respectively, and thus the beneficial effects in the foregoing method embodiments may also be achieved. For brevity, they will not be described here.
  • each module in the device 1000 may be implemented in the form of software and/or hardware, which is not specifically limited.
  • the device 1000 is presented in the form of functional modules.
  • the “module” herein may refer to an application-specific integrated circuit ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • ASIC application-specific integrated circuit
  • the processing module 1010 may be implemented by the processor 1101 shown in FIG. 11.
  • the transceiver module 1020 can be implemented by the transceiver 1103 shown in FIG. 11.
  • the processor is implemented by executing the computer program stored in the memory.
  • the function and/or implementation process of the transceiver module 1020 may also be implemented through pins or circuits.
  • the memory is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit in the computer device located outside the chip, as shown in FIG. 11 1102.
  • FIG. 11 shows a schematic structural diagram of a signal transmission apparatus 1100 according to an embodiment of the present application.
  • the device 1100 includes: a processor 1101.
  • the processor 1101 is configured to perform first listening and then speaking LBT detection in a first time unit, and the first time unit is any time unit in the first time domain resource;
  • the processor 1101 is also used to call the interface to perform the following actions: starting from the first time unit after the successful LBT, a discovery signal DRS is sent, the DRS includes a downlink control channel, a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel and downlink sharing channel,
  • the start time unit corresponding to the time domain resource occupied by the primary synchronization signal, the auxiliary synchronization signal and the physical broadcast channel is separated from the start position corresponding to the second time domain resource by N time units, N is An integer greater than or equal to 0, the time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel is located in the second time domain resource.
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the processor 1101 may call an interface to perform the above-mentioned sending and receiving actions, where the called interface may be a logical interface or a physical interface, which is not limited. Alternatively, the physical interface may be implemented by a transceiver. Optionally, the device 1100 further includes a transceiver 1103.
  • the device 1100 further includes a memory 1102, and the memory 1102 may store the program code in the foregoing method embodiment, so that the processor 1101 can call it.
  • the device 1100 includes a processor 1101, a memory 1102, and a transceiver 1103, the processor 1101, the memory 1102, and the transceiver 1103 communicate with each other through an internal connection path, and transfer control and/or data signals.
  • the processor 1101, the memory 1102, and the transceiver 1103 may be implemented by a chip.
  • the processor 1101, the memory 1102, and the transceiver 1103 may be implemented on the same chip, or may be implemented on different chips, respectively. Or any two of them can be combined in one chip.
  • the memory 1102 may store program codes, and the processor 1101 calls the program codes stored in the memory 1102 to implement the corresponding functions of the device 1100.
  • apparatus 1100 may also be used to perform other steps and/or operations on the network device side in the foregoing embodiments, and for brevity, details are not described here.
  • FIG. 12 shows a schematic block diagram of a signal transmission apparatus 1200 according to an embodiment of the present application.
  • the apparatus 1200 is used to execute the method executed by the terminal device in the foregoing method embodiment.
  • the specific form of the apparatus 1200 may be a terminal device or a chip in the terminal device, which is not limited in this embodiment of the present application.
  • the device 1200 includes:
  • the processing module 1210 is configured to detect the primary synchronization signal and the secondary synchronization signal in the discovery signal DRS in the second time domain resource, where the DRS includes a downlink control channel, the primary synchronization signal, the secondary synchronization signal, Physical broadcast channel and downlink shared channel;
  • the processing module 1210 is further configured to: when the primary synchronization signal and the secondary synchronization signal are detected in the second time domain resource, according to the time domain in which the primary synchronization signal and the secondary synchronization signal are located The location, the time domain position relationship between the time domain location where the physical broadcast channel is located, and the time domain location for receiving the physical broadcast channel is determined;
  • the transceiver module 1220 is configured to receive the physical broadcast channel at the time domain position for receiving the physical broadcast channel, where the physical broadcast channel carries first indication information, and the first indication information is used
  • the terminal device determines a starting time unit for detecting a downlink control channel
  • the processing module 1210 is further configured to detect the downlink control channel starting from the starting time unit for detecting the downlink control channel.
  • the first indication information is used to indicate: a start time unit corresponding to a time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel, and The number of time units for detecting the interval between the start time units of the downlink control channel;
  • the processing module 1210 is further configured to, according to the number of time units indicated by the first indication information, and corresponding to the time domain resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel, The starting time unit determines the starting time unit for detecting the downlink control channel.
  • the first indication information is used to indicate: the starting time unit for detecting a downlink control channel;
  • the processing module 1210 is further configured to, according to the first indication information, acquire a start time unit of the time domain resource for detecting the downlink control channel.
  • the transceiver module 1220 is further configured to receive the downlink shared channel according to the second indication information carried in the downlink control channel, and the second indication information is used to indicate The time-frequency resources corresponding to the downlink shared channel are described.
  • the starting time unit for detecting the downlink control channel is located in the first time domain resource.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the device 1200 executes the following method, specifically including:
  • the processing module 1210 is configured to detect the downlink control channel at each time unit in the first time domain resource
  • the processing module 1210 is further configured to: when detecting the downlink control channel, the terminal device continues to detect the primary synchronization signal and the secondary synchronization signal within a predetermined time;
  • the processing module 1210 is further configured to, when the primary synchronization signal and the secondary synchronization signal are detected, according to the primary synchronization signal and the secondary synchronization signal, and the time-domain position relationship of the physical broadcast channel, Determine the time domain position for receiving the physical broadcast channel;
  • the transceiver module 1220 is configured to receive the physical broadcast channel at the time domain position for receiving the physical broadcast channel
  • the processing module 1210 is further configured to detect the remaining resources after removing the resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel among the time-frequency resources indicated in the downlink control channel Downlink shared channel.
  • the processing module 1210 is configured to detect the downlink control channel at each time unit in the first time domain resource, specifically including:
  • the downlink control channel After detecting the preamble signal, the downlink control channel is detected.
  • the processing module 1210 is further configured to determine the second time domain resource according to the time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel, wherein, the start time unit corresponding to the time domain resource occupied by the primary synchronization signal, the auxiliary synchronization signal and the physical broadcast channel is separated from the start position corresponding to the second time domain resource by N time units, N is An integer greater than or equal to 0, the time domain resource occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel is located in the second time domain resource.
  • the value of N may be a fixed value set in advance; or, the specific value of N is carried in the physical broadcast channel.
  • the first time domain resource and the second time domain resource are the same time domain resource.
  • the second time domain resource and the first time domain resource are continuous or discontinuous time domain resources.
  • the signal transmission apparatus 1200 may correspond to the method of the terminal device in the foregoing method embodiment, and the above and other management operations and/or functions of each module in the apparatus 1200 are implemented to implement the foregoing method, respectively
  • the corresponding steps of the method of the terminal device in the example therefore, the beneficial effects in the foregoing method embodiments can also be achieved, and for the sake of brevity, they will not be repeated here.
  • each module in the device 1200 may be implemented in the form of software and/or hardware, which is not specifically limited.
  • the device 1200 is presented in the form of functional modules.
  • the “module” herein may refer to an application-specific integrated circuit ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • ASIC application-specific integrated circuit
  • the device 1200 may adopt the form shown in FIG. 13.
  • the acquisition processing module 1210 may be implemented by the processor 1301 shown in FIG. 13.
  • the transceiver module 1220 may be implemented by the transceiver 1303 shown in FIG. 13.
  • the processor is implemented by executing the computer program stored in the memory.
  • the function and/or implementation process of the transceiver module 1220 may also be implemented through pins or circuits.
  • the memory is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit located outside the chip in the computer device, as shown in FIG. 13 1302.
  • FIG. 13 shows a schematic structural diagram of a signal transmission apparatus 1300 according to an embodiment of the present application.
  • the device 1300 includes: a processor 1301.
  • the processor 1301 is configured to detect the primary synchronization signal and the secondary synchronization signal in the discovery signal DRS in the second time domain resource, where the DRS includes a downlink control channel and the primary synchronization Signal, the secondary synchronization signal, the physical broadcast channel, and the downlink shared channel; also used to, when the primary synchronization signal and the secondary synchronization signal are detected in the second time domain resource, according to the primary synchronization
  • the time domain position between the signal and the secondary synchronization signal, and the time domain position where the physical broadcast channel is located determines the time domain position for receiving the physical broadcast channel; it is also used to call the interface to perform the following Action: Receive the physical broadcast channel at the time domain position for receiving the physical broadcast channel, where the physical broadcast channel carries first indication information, and the first indication information is used for the terminal
  • the device determines a start time unit for detecting the downlink control channel; it is also used to detect the downlink control channel starting from the start time unit for detecting the downlink control channel.
  • the processor 1301 is configured to detect the downlink control channel at each time unit in the first time domain resource; and also used to detect the downlink control channel when the terminal
  • the device continues to detect the primary synchronization signal and the secondary synchronization signal within a predetermined time; it is also used to detect the primary synchronization signal and the secondary synchronization signal according to the primary synchronization signal and the secondary synchronization signal.
  • the time-domain position relationship of the physical broadcast channel to determine the time-domain position for receiving the physical broadcast channel; the processor 1101 is also used to call an interface to perform the following actions: When the time is used to receive the physical broadcast channel Domain location, receiving the physical broadcast channel;
  • the processor 1301 is further configured to detect the remaining resources after removing the resources occupied by the primary synchronization signal, the secondary synchronization signal, and the physical broadcast channel in the time-frequency resources indicated in the downlink control channel Downlink shared channel.
  • the processor 1301 may call an interface to perform the above-mentioned sending and receiving actions, wherein the called interface may be a logical interface or a physical interface, which is not limited. Alternatively, the physical interface may be implemented by a transceiver. Optionally, the device 1300 further includes a transceiver 1303.
  • the device 1300 further includes a memory 1302, and the memory 1302 may store the program code in the foregoing method embodiment, so that the processor 1301 can call it.
  • the device 1300 includes a processor 1301, a memory 1302, and a transceiver 1303, the processor 1301, the memory 1302, and the transceiver 1303 communicate with each other through an internal connection path, and transfer control and/or data signals.
  • the processor 1301, the memory 1302, and the transceiver 1303 may be implemented by a chip.
  • the processor 1301, the memory 1302, and the transceiver 1303 may be implemented on the same chip, or may be implemented on different chips, respectively. Or any two of them can be combined in one chip.
  • the memory 1302 may store program codes, and the processor 1301 calls the program codes stored in the memory 1302 to implement the corresponding functions of the device 1300.
  • apparatus 1300 may also be used to perform other steps and/or operations on the terminal device side in the foregoing embodiments, and for brevity, details are not described here.
  • the method disclosed in the above embodiments of the present application may be applied to a processor, or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments may be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an existing programmable gate array (FPGA), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components, can also be a system chip (system on chip, SoC), can also be a central processor (central processor (unit), CPU), can also be a network processor (network processor (NP), can also be a digital signal processing circuit (digital signal processor, DSP), can also be a microcontroller (micro controller (unit), MCU), can also be a programmable controller (programmable logic (device, PLD) or other Integrated chip.
  • SoC system on chip
  • SoC system on chip
  • CPU central processor
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller micro controller (unit)
  • MCU microcontroller
  • PLD programmable controller
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and a 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 memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erasable programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct RAMbus RAM direct RAMbus RAM
  • the numbers “first” and “second” are only for distinguishing different objects, for example, for distinguishing different indication information or time-domain resources, and do not limit the scope of the embodiments of the present application.
  • the embodiments of the present application are not limited to this.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and 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 on multiple network units. Some or all of the units may 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, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product
  • the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

Landscapes

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

Abstract

La présente invention concerne un procédé et un dispositif d'émission de signaux, destinés à être utilisés pour améliorer une opportunité d'envoi d'un signal de découverte (DRS) ou une opportunité de test d'écoute avant de parler (LBT) en commençant par envoyer le DRS dans une première unité de temps après la réussite du test LBT. Le procédé comprend les étapes suivantes : un dispositif réseau effectue une détection LBT dans une première unité de temps, la première unité de temps étant une unité de temps quelconque dans une première ressource de domaine temporel ; le dispositif réseau envoie un DRS commençant à partir de la première unité de temps après le succès du test LBT, le DRS comprend un canal de commande de liaison descendante, un signal de synchronisation primaire, un signal de synchronisation secondaire, un canal de diffusion physique, un canal partagé de liaison descendante ; une ressource de domaine temporel occupée par le signal de synchronisation primaire, le signal de synchronisation secondaire et le canal de diffusion physique est située dans une seconde ressource de domaine temporel, et une unité de temps de démarrage correspondant à la ressource de domaine temporel occupée par le signal de synchronisation primaire, le signal de synchronisation secondaire et le canal de diffusion physique et une position de départ correspondant à la seconde ressource de domaine temporel sont séparées par N unités de temps, N étant un nombre entier supérieur ou égal à 0.
PCT/CN2019/071222 2019-01-10 2019-01-10 Procédé et dispositif d'émission de signaux Ceased WO2020142998A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/071222 WO2020142998A1 (fr) 2019-01-10 2019-01-10 Procédé et dispositif d'émission de signaux
CN201980087822.9A CN113261258B (zh) 2019-01-10 2019-01-10 传输信号的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/071222 WO2020142998A1 (fr) 2019-01-10 2019-01-10 Procédé et dispositif d'émission de signaux

Publications (1)

Publication Number Publication Date
WO2020142998A1 true WO2020142998A1 (fr) 2020-07-16

Family

ID=71520871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/071222 Ceased WO2020142998A1 (fr) 2019-01-10 2019-01-10 Procédé et dispositif d'émission de signaux

Country Status (2)

Country Link
CN (1) CN113261258B (fr)
WO (1) WO2020142998A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080046A (zh) * 2020-08-13 2022-02-22 北京紫光展锐通信技术有限公司 一种信道占用指示方法、装置及相关设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118900468A (zh) * 2023-05-04 2024-11-05 中兴通讯股份有限公司 一种信道传输方法、通信设备及存储介质
CN119172863A (zh) * 2023-06-15 2024-12-20 华为技术有限公司 一种数据传输方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106452704A (zh) * 2015-08-13 2017-02-22 中国移动通信集团公司 一种发现参考信号的发送方法、基站及终端
WO2018074911A1 (fr) * 2016-10-21 2018-04-26 Samsung Electronics Co., Ltd. Appareil et procédé relatifs à une structure d'accès au canal sur le spectre sans licence

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507439B (zh) * 2016-10-28 2019-12-10 宇龙计算机通信科技(深圳)有限公司 一种传输信息的方法、基站及终端
CN108282859B (zh) * 2017-01-06 2020-10-27 华为技术有限公司 一种通信方法和装置
CN108809561B (zh) * 2017-04-28 2020-11-03 维沃移动通信有限公司 一种同步信号块的传输方法、网络设备及用户设备
CN108934071B (zh) * 2017-05-25 2022-03-15 维沃移动通信有限公司 一种同步信号块的传输方法、网络设备及终端

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106452704A (zh) * 2015-08-13 2017-02-22 中国移动通信集团公司 一种发现参考信号的发送方法、基站及终端
WO2018074911A1 (fr) * 2016-10-21 2018-04-26 Samsung Electronics Co., Ltd. Appareil et procédé relatifs à une structure d'accès au canal sur le spectre sans licence

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
NOKIA , NOKIA SHANGHAI BELL: "On DL Signals and Channels for NR-U", 3GPP DRAFT; R1-1812696, 16 November 2018 (2018-11-16), Spokane, USA, pages 1 - 21, XP051478940 *
SPREADTRUM COMMUNICATIONS: "Discussion on DRS in NR-U", 3GPP TSG RAN WG1 MEETING #95 R1-1813077, 16 November 2018 (2018-11-16), Spokane, USA, pages 1 - 11, XP051479345 *
VIVO: "Discussion on the channel access procedures", 3GPP DRAFT; R1-1812300, 16 November 2018 (2018-11-16), Spokane, USA, pages 1 - 7, XP051478489 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080046A (zh) * 2020-08-13 2022-02-22 北京紫光展锐通信技术有限公司 一种信道占用指示方法、装置及相关设备

Also Published As

Publication number Publication date
CN113261258A (zh) 2021-08-13
CN113261258B (zh) 2022-07-22

Similar Documents

Publication Publication Date Title
US10791575B2 (en) Data transmission method, device and system
US20210378031A1 (en) Random access method, device, and system
RU2748223C1 (ru) Способ передачи сигнала, сетевое устройство и терминал
WO2020047856A1 (fr) Procédé de transmission d'informations de configuration et dispositif terminal
EP3952585A1 (fr) Procédé d'envoi de préambule d'accès aléatoire et appareil de communication
WO2020220311A1 (fr) Systèmes et procédés de procédure d'accès aléatoire améliorée
CN113726496B (zh) 非授权频段上ssb的传输方法和设备
CN106851822A (zh) 传输方法和用户终端
US11804995B2 (en) Data sending method, terminal device, and non-transitory computer-readable storage medium
CN110392443B (zh) 一种数据信道传输方法、接收方法及装置
WO2018102966A1 (fr) Procédé d'accès aléatoire, dispositif de réseau et dispositif terminal
WO2020164639A1 (fr) Procédé, dispositif, et système d'accès aléatoire
WO2020020360A1 (fr) Procédé et dispositif de communication sans fil
WO2019213951A1 (fr) Procédé de réception de canal de liaison descendante, et appareil terminal
WO2021027693A1 (fr) Procédé et appareil de transmission et de réception répétées de pbch, support de stockage, station de base et équipement utilisateur
CN115884424A (zh) 随机接入方法、网络侧设备、终端、装置及存储介质
CN113261258B (zh) 传输信号的方法和装置
TW201844050A (zh) 用於非連續接收的方法和設備
WO2020056589A1 (fr) Procédé et appareil de transmission de signaux et support d'enregistrement informatique
CN118743294A (zh) 用于prach重复的方法及设备
CN117580188A (zh) 无线通信方法、终端设备和网络设备
WO2020258051A1 (fr) Procédé et appareil d'accès cellulaire
CN116325971A (zh) 用于信号和信道传输的系统和方法
CN110061821A (zh) 随机接入前导序列发射功率确定方法、用户设备、基站和计算机可读介质
WO2023197847A1 (fr) Procédé et appareil de communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19908172

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19908172

Country of ref document: EP

Kind code of ref document: A1