WO2021138918A1 - 一种随机接入方法及装置 - Google Patents

一种随机接入方法及装置 Download PDF

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Publication number
WO2021138918A1
WO2021138918A1 PCT/CN2020/071541 CN2020071541W WO2021138918A1 WO 2021138918 A1 WO2021138918 A1 WO 2021138918A1 CN 2020071541 W CN2020071541 W CN 2020071541W WO 2021138918 A1 WO2021138918 A1 WO 2021138918A1
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WO
WIPO (PCT)
Prior art keywords
wake
signal
ros
signals
corresponding relationship
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/CN2020/071541
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English (en)
French (fr)
Inventor
费永强
郑娟
侯海龙
李超君
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Huawei Technologies Co Ltd
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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 EP20912464.3A priority Critical patent/EP4061079B1/en
Priority to PCT/CN2020/071541 priority patent/WO2021138918A1/zh
Priority to CN202080053349.5A priority patent/CN114175801B/zh
Publication of WO2021138918A1 publication Critical patent/WO2021138918A1/zh
Priority to US17/860,911 priority patent/US12342280B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communication technology, and in particular to a random access method and device.
  • network devices can send paging messages to terminal devices in idle, sleeping, or inactive states. Initiate a page.
  • DCI downlink control information
  • the terminal device can receive, detect or listen to the paging DCI in the PO.
  • the terminal device can receive the paging message sent by the network device according to the scheduling of the paging DCI to determine whether the network device initiates a paging to itself.
  • the paging message may include a paging list. If the identification of the terminal device is included in the paging list, the terminal device can determine that the network device initiates a paging to itself.
  • the terminal device may initiate random access. For example, the terminal device may send a random access preamble to the network device in a random access channel (RACH) occasion (RO). How the terminal device determines the RO used to send the random access preamble is a current research hotspot.
  • RACH random access channel
  • RO occasion
  • the embodiments of the present application provide a communication method and device, so that a terminal device can determine an RO used to send a random access preamble.
  • a communication method is provided.
  • the method can be executed by a terminal device or a component of the terminal device (such as a processor, a chip, or a chip system, etc.), including: receiving a first wake-up signal from a network device, the first wake-up signal being K wake-up signals K is an integer greater than or equal to 1; the first RO is determined according to the first wake-up signal, the first RO is one of the N ROs, where the first wake-up signal has a corresponding relationship with the N ROs, and N is greater than Or an integer equal to 1; the terminal device sends a random access preamble to the network device in the first RO.
  • the random access preamble can also be referred to as a random access request, a preamble, a preamble carried by a physical random access channel PRACH, a RACH preamble, a message 1 (message 1, Msg1), or a message A (message A, MsgA), etc.
  • a synchronization signal block (synchronization signal block, SSB) and an RO
  • the terminal device sends a random access preamble on the RO corresponding to the SSB.
  • the beam of the SSB is often a wide beam in a fixed direction, it has disadvantages such as poor flexibility and small beam gain. Therefore, when the network device receives the random access preamble in the SSB beam, there are also disadvantages such as poor flexibility and small beam gain.
  • the terminal device sends the random access preamble on the RO corresponding to the wake-up signal.
  • the network device receives the random access preamble in the beam of the wake-up signal.
  • the wake-up signal has the advantages of narrower beam, good flexibility, and large beam gain. Therefore, the network device uses the beam corresponding to the wake-up signal to receive the random access preamble, which also has the advantages of higher flexibility and large beam gain.
  • the correspondence between the first wake-up signal and the N ROs may include one or more of the following: there is a correspondence between the time domain resources of the first wake-up signal and the N ROs; the first wake-up The frequency domain resource of the signal has a corresponding relationship with N ROs; the code domain resource of the first wake-up signal has a corresponding relationship with N ROs; the spatial resource of the first wake-up signal has a corresponding relationship with N ROs; the identification of the first wake-up signal There is a corresponding relationship with N ROs; or, the sequence of the first wake-up signal has a corresponding relationship with N ROs.
  • the correspondence between the first wake-up signal and the N ROs can be referred to as the direct correspondence between the wake-up signal and the RO.
  • the direct correspondence between the first wake-up signal and the N ROs may be predefined or configured by the network device.
  • the quasi co-location relationship between the wake-up signal and other signals is not limited.
  • the first wake-up signal can have its own specific beam direction, so the beam of the first wake-up signal is more flexible, and the network device can set the beam width and direction of the first wake-up signal according to its own needs, and is not limited to other signals Beam mode.
  • the correspondence between the first wake-up signal and the N ROs may include one or more of the following: the first wake-up signal and the first synchronization signal block SSB are quasi co-located, and the first SSB and N ROs have a corresponding relationship; the first wake-up signal and the first channel state information reference signal CSI-RS are quasi co-located, and the first CSI-RS has a corresponding relationship with the N ROs; or, the first wake-up signal and the first demodulation
  • the reference signal DMRS is quasi co-located, and there is a corresponding relationship between the first DMRS and the N ROs.
  • the correspondence between the first wake-up signal and the N ROs can be referred to as the indirect correspondence between the wake-up signal and the RO.
  • the indirect correspondence between the first wake-up signal and the N ROs may be predefined or configured by the network device.
  • the terminal device can be based on the first SSB, the first SSB, and the first DMRS.
  • a measurement result of a CSI-RS or a first DMRS, etc. optimizes and/or adjusts the receiving beam of the first wake-up signal, and reduces the probability of missed detection or false detection of the first wake-up signal.
  • the first wake-up signal is one of K wake-up signals, including one or more of the following:
  • the first wake-up signal is the wake-up signal with the highest received signal power among the K wake-up signals; the first wake-up signal is the wake-up signal with the received power greater than or equal to the first threshold among the K wake-up signals.
  • the first threshold may be predefined, or , Configured by the network device; the first wake-up signal is the wake-up signal with the highest received signal strength among the K wake-up signals; the first wake-up signal is the wake-up signal with the received signal strength greater than or equal to the second threshold among the K wake-up signals, and the second The threshold is predefined or configured by the network device; the first wake-up signal is the wake-up signal with the highest received signal quality among the K wake-up signals; or, the first wake-up signal is the received signal quality of the K wake-up signals is greater than or equal to The wake-up signal of the third threshold.
  • the third threshold is predefined or configured by the network device.
  • the process of determining the first wake-up signal by the terminal device according to conditions such as received signal power, received signal strength, or received signal quality is similar.
  • description is made by taking the terminal device determining the first wake-up signal according to the received signal power as an example.
  • the terminal device can detect the received power of K wake-up signals, and determine that the wake-up signal with the largest received power is the above-mentioned first wake-up signal.
  • the terminal device may detect the received power of K wake-up signals; among the K wake-up signals, determine the wake-up signal whose received power is greater than or equal to the first threshold as the first wake-up signal.
  • the terminal device can randomly select one wake-up signal from the multiple wake-up signals as the first wake-up signal, or The terminal device may also determine the wake-up signal with the largest received power among the multiple wake-up signals whose received power is greater than or equal to the first threshold, as the first wake-up signal, etc.
  • the terminal device selects the wake-up signal that meets the condition among the K wake-up signals as the first wake-up signal.
  • the terminal device will then receive the receiving beam of the first wake-up signal as an uplink beam to send a random access preamble.
  • the network device will send the downlink beam of the first wake-up signal as the receiving beam to receive the random access preamble. Because the beam for transmitting the first wake-up signal is the same beam as the beam for transmitting the random access preamble. Therefore, when the selected first wake-up signal meets the above-mentioned conditions such as the maximum received power, the transmitted random access preamble will also meet the above-mentioned conditions. For example, the received power of the transmitted random access preamble is relatively large, or the received power of the transmitted random access preamble is greater than or equal to a certain threshold, etc., which can improve the transmission quality of the random access preamble.
  • the above K may be an integer greater than or equal to 2.
  • K wake-up signals can occupy different frequency domain resources.
  • the K wake-up signals may be frequency division multiplexed, occupying the same time domain resources and different frequency domain resources among each other.
  • the frequency domain resources occupied by each wake-up signal are the same or different in size.
  • the K wake-up signals may occupy different time domain resources.
  • the K wake-up signals may be time-division multiplexed, occupying the same frequency domain resources but different time domain resources among each other.
  • the size of time domain resources occupied by each wake-up signal is the same or different.
  • the K wake-up signals can be transmitted using time division multiplexing combined with frequency division multiplexing.
  • the advantage is that the terminal equipment can receive narrowband WUS, but when it needs to receive WUS in different locations at different times, it can also receive and detect WUS signals in a broadband manner, so as to perform beam training or channel in the broadband range. Measurement, so that the terminal device can select a suitable receiving method for the WUS signal according to its own needs, and increase the flexibility of WUS signal detection.
  • the first wake-up signal is used to instruct to monitor the downlink control information DCI used for paging in the paging occasion PO.
  • the network device may use whether to send the first wake-up signal to instruct the terminal device whether to monitor the paging DCI in the PO. If the terminal device detects the first wake-up signal, it can monitor the paging DCI in the PO. If the terminal device does not detect the first wake-up signal, it may not monitor the paging DCI in the PO. In this way, it is possible to prevent the terminal device from periodically monitoring the paging DCI in the PO, and save the energy consumption of the terminal device.
  • the first wake-up signal is used to indicate whether to monitor the downlink DCI used for paging in the PO.
  • the network device can use different wake-up signals to instruct the terminal device whether to monitor the paging DCI in the PO.
  • the network device can use the wake-up signal 1 to instruct the terminal device to monitor the paging DCI in the PO.
  • the wake-up signal 2 is used to instruct the terminal device not to monitor the paging DCI in the PO.
  • the first wake-up signal received by the terminal device is the wake-up signal 1
  • the terminal device monitors the paging DCI in the PO.
  • the first wake-up signal received by the terminal device is the wake-up signal 2
  • the terminal device no longer monitors the paging DCI in the PO. In this way, it is possible to prevent the terminal device from periodically monitoring the paging DCI in the PO, thereby saving the energy consumption of the terminal device.
  • the method can be executed by a network device or a component of the network device (such as a processor, a chip, or a chip system, etc.).
  • the method includes: sending a first wake-up signal to the terminal device, where the first wake-up signal is K wake-ups One of the signals, K is an integer greater than or equal to 1; the random access preamble is received in the first RO, the first RO is one of the N ROs, the first wake-up signal has a corresponding relationship with the N ROs, and N is An integer greater than or equal to 1.
  • the random access preamble can also be referred to as a random access request, a preamble, a preamble carried by a physical random access channel PRACH, a RACH preamble, a message 1 (message 1, Msg1), or a message A (message A, MsgA), etc.
  • the first wake-up signal has a corresponding relationship with the N ROs, including one or more of the following: the time domain resource of the first wake-up signal corresponds to the N ROs Relationship; the frequency domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the code domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the spatial domain of the first wake-up signal The resource has a corresponding relationship with the N ROs; the identifier of the first wake-up signal has a corresponding relationship with the N ROs; or, the sequence of the first wake-up signal has a corresponding relationship with the N ROs.
  • the correspondence between the first wake-up signal and the N ROs can be referred to as a direct correspondence.
  • the foregoing direct correspondence relationship may be predefined or configured by a network device.
  • the first wake-up signal is quasi co-located with the first synchronization signal block SSB, so The first SSB has a corresponding relationship with the N ROs; the first wake-up signal and the first channel state information reference signal CSI-RS are quasi co-located, and the first CSI-RS corresponds to the N ROs Relationship; or, the first wake-up signal and the first demodulation reference signal DMRS are quasi co-located, and the first DMRS has a corresponding relationship with the N ROs.
  • the correspondence between the first wake-up signal and the N ROs can be referred to as the indirect correspondence between the wake-up signal and the RO.
  • the indirect correspondence between the wake-up signal and the RO may be predefined or configured by the network device.
  • the first wake-up signal is one of K wake-up signals, including one or more of the following: the first wake-up signal is the one with the highest received signal power among the K wake-up signals A wake-up signal; the first wake-up signal is one of the K wake-up signals whose received signal power is greater than or equal to a first threshold; the first wake-up signal is the received signal strength among the K wake-up signals The largest wake-up signal; the first wake-up signal is one of the wake-up signals whose received signal strength is greater than or equal to the second threshold among the K wake-up signals; the first wake-up signal is received among the K wake-up signals The wake-up signal with the highest signal quality; or, the first wake-up signal is one of the wake-up signals with received signal quality greater than or equal to the third threshold among the K wake-up signals.
  • the K is an integer greater than or equal to 2.
  • the K wake-up signals occupy different frequency domain resources.
  • the K wake-up signals may be frequency division multiplexed; or, the K wake-up signals occupy different time domain resources.
  • K wake-up signals can be time-division multiplexed.
  • the K wake-up signals may occupy different frequency domain resources and time domain resources.
  • the K wake-up signals are time division multiplexing combined with frequency division multiplexing.
  • the first wake-up signal is used to indicate whether to monitor downlink control information for paging in a paging occasion, or the first wake-up signal is used to indicate whether to monitor in a paging occasion Downlink control information used for paging.
  • an embodiment of the present application provides a device that can implement the foregoing first aspect or the method in any possible implementation manner of the first aspect.
  • the device includes corresponding units or components for performing the above-mentioned methods.
  • the units included in the device can be implemented in software and/or hardware.
  • the device may be, for example, a terminal, or a chip, a chip system, or a processor that can support the terminal to implement the foregoing method.
  • an embodiment of the present application provides a device that can implement the foregoing second aspect or any one of the possible implementation manners of the second aspect.
  • the device includes corresponding units or components for performing the above-mentioned methods.
  • the units included in the device can be implemented in software and/or hardware.
  • the device may be, for example, a network device, or a chip, a chip system, or a processor that can support a terminal to implement the foregoing method.
  • an embodiment of the present application provides a device, including: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, and when the program or instruction is executed by the processor, The device is enabled to implement the method described in the foregoing first aspect or any one of the possible implementation manners of the first aspect.
  • an embodiment of the present application provides a device, including a processor, the processor is coupled to a memory, and the memory is used to store a program or instruction, and when the program or instruction is executed by the processor, The device is enabled to implement the method described in the foregoing second aspect or any one of the possible implementation manners of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program or instruction is stored.
  • the computer program or instruction When the computer program or instruction is executed, the computer executes the first aspect or any one of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program or instruction is stored.
  • the computer program or instruction When executed, the computer executes the second aspect or any one of the second aspect.
  • an embodiment of the present application provides a computer program product, which includes computer program code that, when run on a computer, causes the computer to execute the first aspect or any possible implementation of the first aspect. The method described in the method.
  • an embodiment of the present application provides a computer program product, which includes computer program code, which, when run on a computer, causes the computer to execute the above-mentioned second aspect or any possible implementation of the second aspect The method described in the method.
  • an embodiment of the present application provides a chip, including: a processor, the processor is coupled with a memory, the memory is used to store a program or an instruction, when the program or an instruction is executed by the processor , So that the chip implements the method described in the foregoing first aspect or any one of the possible implementation manners of the first aspect.
  • an embodiment of the present application provides a chip, including: a processor, the processor is coupled with a memory, the memory is used to store a program or an instruction, when the program or an instruction is executed by the processor , So that the chip implements the method described in the second aspect or any one of the possible implementation manners of the second aspect.
  • an embodiment of the present application provides a communication system, including: the device in the third aspect, and/or the device in the fourth aspect; or, the device in the fifth aspect, and/ Or, the device described in the sixth aspect above.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic diagram of another communication system provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of determining RO according to SSB according to an embodiment of the application.
  • FIG. 4 is a schematic diagram of monitoring PO according to WUS according to an embodiment of the application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of determining RO according to WUS according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of a device provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of another device provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of another device provided by an embodiment of the application.
  • Figure 1 shows a schematic diagram of the structure of a communication system.
  • the communication system 100 includes one or more network devices (only one network device 110 is shown for brevity in the figure), and one or more terminal devices that communicate with the one or more network devices.
  • the terminal device 120 shown in FIG. 1 communicates with the network device 110. It can be understood that network devices and terminal devices may also be referred to as communication devices.
  • the technology described in the embodiments of the present invention can be used in various communication systems, such as the fourth generation (4G) communication system, 4.5G communication system, 5G communication system, a system that integrates multiple communication systems, or a communication system that will evolve in the future (For example, 6G communication system).
  • 4G fourth generation
  • 5G communication system a system that integrates multiple communication systems
  • 6G communication system a communication system that will evolve in the future
  • LTE long term evolution
  • NR new radio
  • WiFi wireless-fidelity
  • 3GPP third-generation partner program
  • the network device 110 and the terminal device 120 can perform data transmission through physical resources.
  • the physical resources may include one or more of time domain resources, frequency domain resources, code domain resources, or space domain resources.
  • the time domain resource included in the physical resource may include at least one frame, at least one sub-frame, at least one slot, at least one mini-slot, and at least one time unit. , Or at least one time domain symbol, etc.
  • the frequency domain resources included in the physical resource may include at least one carrier (carrier), at least one component carrier (CC), at least one bandwidth part (BWP), and at least one resource block group (resource block group).
  • the airspace resources included in the physical resources may include at least one beam, at least one port, at least one antenna port, or at least one layer/space layer, or the like.
  • the code domain resources included in the physical resources may include at least one orthogonal cover code (OCC), or at least one non-orthogonal multiple access (NOMA) code, and so on. It is understandable that the above-mentioned physical resources may be physical resources of the baseband, and the physical resources of the baseband may be used by the baseband chip.
  • the aforementioned physical resources may also be physical resources of the air interface (also referred to as air interface resources).
  • the aforementioned physical resources may also be intermediate frequency or radio frequency physical resources.
  • the network device 110 may send control information to the terminal device 120 through a control channel, such as a physical downlink control channel (PDCCH), so as to allocate a data channel to the terminal device 120.
  • a control channel such as a physical downlink control channel (PDCCH)
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • the control information may indicate the time domain symbol and/or resource block (resource block, RB) corresponding to the resource of the data channel, and the network device 110 and the terminal device 120 perform data transmission through the data channel on the allocated resources.
  • the above-mentioned data transmission may include downlink data transmission and/or uplink data transmission
  • downlink data (such as data carried by PDSCH) transmission may refer to the network device 110 sending data to the terminal device 120
  • uplink data such as data carried by PUSCH
  • the data can be data in a broad sense, such as user data, or system information. Broadcast information or other information is not limited.
  • the terminal devices 120 may also communicate with each other, which may generally be referred to as device-to-device (device to device, D2D) communication.
  • the data transmitted between the terminal devices 120 may be referred to as sidelink data, sidelink data, or sidelink data, and so on.
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices, and the coverage of one network device may include other numbers of terminal devices, which is not limited.
  • FIG. 2 shows another communication system 200 to which the embodiment of the present application is applied, including: a terminal device 201, a terminal device 202, a terminal device 203, a terminal device 204, a terminal device 205, a terminal device 206, and a network device 207.
  • At least one of the terminal device 201, the terminal device 202, the terminal device 203, the terminal device 204, the terminal device 205, or the terminal device 206 can send uplink data to the network device 207.
  • the network device 207 may send downlink data to at least one of the terminal device 201, the terminal device 202, the terminal device 203, the terminal device 204, the terminal device 205, or the terminal device 206.
  • D2D communication can also be performed between terminal devices.
  • the terminal device 205 may send sidelink data to the terminal device 204 and/or the terminal device 206, and the terminal device 204 and/or the terminal device 206 may send sidelink data to the terminal device 205.
  • the network device 207 and the terminal device 201 to the terminal device 206 can communicate directly.
  • the network device 207 may directly send downlink data to at least one of the terminal device 201, the terminal device 202, the terminal device 203, or the terminal device 205.
  • the network device 207 and the terminal device 201 to the terminal device 206 may perform indirect communication.
  • the network device 207 may send data to the terminal device 205, and the terminal device 205 may forward the data to the terminal device 204 and/or the terminal device 206.
  • the terminal device 204 and/or the terminal device 206 may send data to the terminal device 205, and the terminal device 205 forwards the data to the sending network device 207 and the like.
  • FIG. 2 exemplarily shows one network device and six terminal devices.
  • the communication system 200 may include multiple network devices and the coverage of one network device may include other numbers of terminal devices, etc., which is not limited.
  • the embodiment of the present application provides an application scenario: a network device sends a paging message to page a terminal device, and the paged terminal device can be in an idle state or dormant. (sleeping) state or inactive (inactive) state, etc., are not limited.
  • the paging may be initiated by an access network device or a core network device, which is not limited in the embodiment of the present application.
  • the downlink control information (DCI) of the scheduling paging message can be sent in the paging occasion (PO), and the PO can be determined by the paging search space and corresponding control resources.
  • the set is determined.
  • the paging search space is used to indicate the PDCCH monitoring opportunity that can carry downlink control information.
  • the PDCCH monitoring opportunity may be periodic or aperiodic, and is not limited.
  • the aforementioned corresponding control resource set is used to indicate the time-frequency resource of the PDCCH in the PDCCH monitoring occasion.
  • a PO may include one or more PDCCH monitoring occasions, and the foregoing multiple PDCCH monitoring occasions may be continuous or discontinuous in time, which is not limited.
  • the terminal device can determine the PO location according to its own identification, and receive, monitor, detect, or detect the above-mentioned paging DCI in the PO location.
  • the terminal device can receive the paging message according to the paging DCI to determine whether the network device initiates a paging to itself.
  • the paging message may include a paging list, and the paging list includes the identification of the paged terminal device. After receiving the paging message, the terminal device can determine whether the identification of the terminal device is included in the paging list.
  • the terminal device can initiate a random access process, that is, the terminal device is in a random access channel (random access channel, The random access preamble is sent in (RACH)occasion, RO). If the identification of the terminal device is not included in the paging list, the terminal device can continue to sleep to reduce energy consumption.
  • RACH random access channel
  • the network device may send one or more synchronization signal blocks (synchronization signal blocks, SSB) to the terminal device, in which one SSB has a corresponding relationship with the RO.
  • the terminal device can measure the SSB to determine the SSB that meets the conditions.
  • the SSB that meets the condition may be the SSB with the highest received signal strength, or the SSB with the received signal strength greater than or equal to the first threshold, or the SSB with the highest received signal power, or the SSB with the received signal power greater than or equal to the second threshold SSB, or the SSB with the highest received signal quality, or the SSB with the received signal quality greater than or equal to the third threshold, etc., is not limited.
  • an SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH).
  • PSS and SSS can synchronize terminal devices, and PBCH can be used to carry master information blocks (MIB) and so on.
  • a schematic diagram of sending a random access preamble is provided.
  • the horizontal axis represents time
  • the vertical axis represents frequency.
  • four SSBs are included, namely SSB0, SSB1, SSB2, and SSB3.
  • the four SSBs are time-division multiplexed, that is, occupy the same frequency domain resources and different time-frequency resources.
  • the above 8 ROs can be time division multiplexing combined with frequency division multiplexing.
  • ROs can be divided into 4 groups, RO0 and RO1 are the first group, RO2 and RO3 are the second group, RO4 and RO5 are the third group, and RO6 and RO7 are the fourth group.
  • Different RO groups can be time-division multiplexed, that is, occupy the same frequency domain resources and different time domain resources.
  • the inter-RO frequency division multiplexing included in the RO group occupies the same time domain resources and different frequency domain resources.
  • RO0 and RO1 can be frequency-division multiplexed with each other, and both occupy the same time domain resources and different frequency domain resources.
  • SSB0 may have a corresponding relationship with RO0 and RO1, or it may be described as a corresponding relationship between SSB0 and the first group of ROs.
  • SSB1 may have a corresponding relationship with RO2 and RO3, or it may be described as a corresponding relationship between SSB1 and the above-mentioned second set of ROs.
  • SSB2 may have a corresponding relationship with RO4 and RO5, or it may be described as a corresponding relationship between SSB2 and the third group of RO described above.
  • SSB3 may have a corresponding relationship with RO6 and RO7, or, or described as having a corresponding relationship between SSB3 and the fourth group of RO.
  • the network device may send the above 4 SSBs, and the 4 SSBs have different beam directions. Since the terminal equipment is located in the beam direction corresponding to SSB1, the energy received by the terminal equipment of SSB1 is likely to be higher than the other three SSBs. Therefore, the terminal device can select the RO corresponding to SSB1 for random access, that is, the terminal device selects the RO corresponding to SSB1 to send the random access preamble. From the above description, it can be seen that the ROs corresponding to SSB1 are RO2 and RO3, and the terminal device can randomly select an RO from RO2 and RO3 and send a random access preamble. It should be noted that, in the schematic diagram shown in FIG. 3, the network device is the gNB and the terminal device is the UE as an example for description.
  • the terminal device is located in the direction of the downlink beam 1 corresponding to SSB1.
  • the terminal device can adjust and/or optimize the receiving beam to make the terminal device receive the best quality of SSB1.
  • the terminal device may use the adjusted and/or optimized receiving beam as a sending beam, and use the sending beam to send a random access preamble.
  • the network device can use the downlink beam 1 corresponding to the above SSB1 as the receiving beam to receive the random access preamble, thereby improving the reception quality of the random access preamble.
  • the network device will send the downlink beam of the SSB as the receiving beam and receive the random access preamble sent by the terminal device. Since the beam of the SSB is often a wide beam in a fixed direction, it has disadvantages such as poor flexibility and small beam gain. Therefore, when the network equipment uses the SSB beam to receive the random access preamble, there are also disadvantages such as poor flexibility and small beam gain.
  • the embodiments of the present application provide a communication method and device.
  • the principle of the method is: setting the corresponding relationship between a wake-up signal (WUS) and RO; after receiving WUS, the terminal device can be based on WUS and RO To determine the random access preamble for sending the RO.
  • WUS wake-up signal
  • the network equipment will use the downlink beam that sends WUS as the receiving beam to receive the random access preamble. Since the beam of WUS is narrower, more flexible, and larger in beam gain compared to the beam of SSB, when the network equipment adopts the WUS beam to receive the random access preamble, there are also advantages such as high flexibility and large beam gain.
  • a terminal device can be referred to as a terminal for short. It is a device with wireless transceiver function.
  • the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed on In the air (for example, airplanes, balloons, satellites, etc.).
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety (transportation) Wireless terminal equipment in safety), wireless terminal equipment in a smart city (smart city), wireless terminal equipment in a smart home (smart home), and may also include user equipment (UE), etc.
  • UE user equipment
  • the terminal equipment can also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the 5th generation (5G) network in the future, or public land mobile communication networks that will evolve in the future (Public land mobile network (PLMN) terminal equipment, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Terminal equipment can sometimes be called terminal equipment, user equipment (UE), access terminal equipment, vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, mobile station, remote station, remote terminal Equipment, mobile equipment, UE terminal equipment, terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • the terminal device can also be fixed or mobile. The embodiments of the present application are not limited to this.
  • the terminal device may be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device may be a terminal in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • the terminal device in this application may be a terminal device in machine type communication (MTC).
  • MTC machine type communication
  • the terminal device of the present application may be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into a vehicle as one or more components or units.
  • the vehicle passes through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted Components, on-board chips, or on-board units can implement the method of the present application. Therefore, the embodiments of the present application can be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution vehicle (LTE-V), and vehicle to vehicle (V2V). Wait.
  • V2X vehicle to everything
  • LTE-V long term evolution vehicle
  • V2V vehicle to vehicle
  • the device used to implement the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to implement the function, such as a chip system or a processor, and the device may be set in the terminal.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device used to implement the functions of the terminal is a terminal, and the terminal is a UE as an example to describe the technical solutions provided in the embodiments of the present application.
  • the network device may be an access network device, and the access network device may also be called a radio access network (RAN) device, which is a device that provides wireless communication functions for terminal devices.
  • the access network equipment includes, for example, but is not limited to: next-generation base stations (generation nodeB, gNB), evolved node B (evolved node B, eNB), radio network controller (RNC), node B ( node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseband unit) , BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc.
  • generation nodeB generation nodeB, gNB
  • evolved node B evolved node B
  • RNC radio network controller
  • node B node B, NB
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved node
  • the access network equipment can also be a wireless controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or a network
  • the equipment may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network.
  • the terminal device can communicate with multiple access network devices of different technologies.
  • the terminal device can communicate with an access network device that supports long term evolution (LTE), or can communicate with an access network device that supports 5G. , It can also be dual-connected with LTE-supporting access network equipment and 5G-supporting access network equipment.
  • LTE long term evolution
  • 5G 5G-supporting access network equipment
  • the embodiments of the application are not limited.
  • the device used to implement the function of the network device may be a network device; it may also be a device capable of supporting the network device to implement the function, such as a chip system or a processor, and the device may be set in the network device.
  • the device used to implement the functions of the network equipment is the network equipment, and the network equipment is the base station as an example to describe the technical solutions provided in the embodiments of the present application.
  • the WUS may be a signal with a wake-up function.
  • channel state information reference signal channel state information-reference signal, CSI-RS
  • CSI-RS channel state information-reference signal
  • SSB synchronization signal block
  • demodulation reference signal demodulation reference signal, DMRS
  • DMRS demodulation reference signal
  • WUS is used to instruct terminal equipment to receive, monitor, detect, or detect DCI used to schedule paging messages in one or more paging occasions (PO), that is, paging DCI.
  • PO paging occasions
  • WUS used to indicate whether to monitor DCI used for paging in the PO
  • WUS used to indicate whether to monitor DCI used for paging in the PO
  • the wake-up signal can also be called a wake-up signal, or an activation signal.
  • a network device can send a paging message to a terminal device in an idle state, a sleeping state, or an inactive state.
  • the DCI for scheduling the paging message may be sent in the PO, and the PO may be determined by the paging search space and the corresponding control resource set.
  • the paging search space is used to indicate the PDCCH monitoring timing that carries the downlink control information, and the PDCCH monitoring timing may be periodic or aperiodic, which is not limited.
  • the aforementioned corresponding control resource set can be used to indicate the time-frequency resource of the PDCCH in the PDCCH monitoring occasion.
  • a PO may include one or more PDCCH monitoring occasions, and the foregoing multiple PDCCH monitoring occasions may be continuous or discontinuous in time, which is not limited.
  • the terminal device can determine the location of the PO according to its own identity (for example, the UE ID, or the UE's radio network temporary identity (RNTI), etc.), and receive, detect, monitor, or listen to the above-mentioned paging DCI in the PO .
  • the terminal can receive paging messages and the like according to the paging DCI.
  • the four of receiving, detecting, monitoring, and intercepting are not distinguished and can be replaced with each other. For example, receiving can be replaced with detection, monitoring, listening, etc.
  • the terminal device receiving WUS or paging message can be replaced by terminal device detecting WUS or paging message, or replaced by terminal device monitoring WUS or paging message, or replaced by terminal device listening WUS or paging message, etc.
  • WUS can be generated from a sequence (for example, an m sequence, a Gold sequence, or a ZC (Zadoff-Chu) sequence).
  • a sequence for example, an m sequence, a Gold sequence, or a ZC (Zadoff-Chu) sequence.
  • the detection of the above sequence signal by the terminal device can be completed through a simple cross-correlation operation, so the detection is simple and the energy consumption is small.
  • WUS can usually indicate wake-up in the following two ways.
  • the network device can send WUS to instruct the terminal device to wake up.
  • the terminal device when the terminal device receives WUS, it wakes up itself.
  • the network device may indicate not to wake up the terminal device by not sending WUS.
  • the terminal device can continue to sleep when it does not receive WUS.
  • the terminal device can first determine whether WUS is detected. If WUS is detected, the DCI used for scheduling paging messages is received, detected, monitored, or listened to in one or more subsequent POs, that is, paging DCI. The terminal can receive the paging message according to the scheduling of the paging DCI.
  • the terminal device can continue to sleep without blind detection and reduce energy consumption. As shown in Figure 4 as an example, if the terminal device detects WUS, it can listen to the paging DCI in the subsequent N POs, and receive the paging message according to the scheduling of the paging DCI. Otherwise, the terminal device does not need to listen to the paging DCI in the subsequent N POs, and continues to sleep.
  • the other is to indicate whether to wake up the terminal device through a different WUS.
  • the first WUS can instruct to wake up the terminal device
  • the second WUS can instruct not to wake up the terminal device, and so on.
  • the network device can instruct the terminal device to wake up by sending the first WUS.
  • the terminal device receives the first WUS, it wakes up itself.
  • the network device can send a second WUS to instruct the terminal device not to wake up.
  • the terminal device receives the second WUS, it continues to sleep.
  • the first WUS and the second WUS can be distinguished by sequence, or the time-frequency resource of transmission, or other ways of distinguishing. As long as the terminal device can distinguish the first WUS and the second WUS sent by the network device, the present invention does not limit this.
  • WUS may occupy 1 or 2 physical resource blocks (PRB) in the frequency domain, and may occupy consecutive M subframes or time slots in the time domain, and the value of M may be It is predefined, or configured by the network device for the terminal (for example, configured through radio resource control (Radio Resource Control, RRC) signaling).
  • PRB physical resource blocks
  • RRC Radio Resource Control
  • Random access channel (RACH, occasion, RO)
  • the RO includes time domain resources and frequency domain resources, and the terminal device can send a random access preamble in the RO to initiate random access.
  • the RO configuration can be pre-defined or configured by the network device for the terminal.
  • the RO can be configured for the terminal device through RRC signaling (such as a system message or an RRC dedicated message).
  • SSB and RO have a corresponding relationship, and the corresponding relationship may be specifically: one SSB corresponds to one RO, or one SSB corresponds to multiple ROs, or multiple SSBs correspond to one RO, and so on.
  • the correspondence between SSB and RO may be predefined or configured by the network equipment for the terminal.
  • the correspondence between SSB and RO may be configured for the terminal equipment through RRC signaling (such as system messages or RRC dedicated messages).
  • the network device may send configuration information for random access, and the configuration information for random access may include information required to determine the time-frequency resources of one or more ROs, and for configuration Information about the correspondence between RO and SSB.
  • the terminal device can measure the SSB, select the SSB that meets the conditions, and send the random access preamble in the RO corresponding to the SSB.
  • the SSB that satisfies the condition may specifically be the SSB with the largest received signal energy, or the SSB with the received signal energy greater than or equal to a threshold, etc., which is not limited. It is understandable that if the above-mentioned SSB that meets the condition corresponds to multiple ROs, one RO can be randomly selected among the above-mentioned multiple ROs to send a random access preamble and so on.
  • QCL can represent the relationship between two ports, or the relationship between two signals. If the QCL between the two signals from two ports, that is, the signals from these two ports will have some same properties, these properties include one or more of the following: average gain, received airspace parameters, Doppler Frequency shift, delay extension, etc.
  • QCL is divided into four categories: QCL-A, QCL-B, QCL-C and QCL-D.
  • QCL-A means Doppler frequency shift, Doppler spread, average delay and time delay spread between ports or signals are the same
  • QCL-B means Doppler shift, Doppler spread between ports or signals The parameters are the same.
  • QCL-C indicates that the Doppler frequency shift and average delay parameters between ports or signals are the same, and that between QCL-D ports or signals indicates that the receiving space parameters are the same.
  • the two signals are QCL, it can be equivalent to: using the same port for transmission between the two signals, or equivalent to: the beams of the two signals are correlated.
  • WUS and SSB are QCL, it can be equivalent to: WUS and SSB use the same port for transmission, or equivalent to: WUS beam is associated with SSB beam.
  • the beam can be understood as a spatial domain filter, or a spatial filter or a spatial parameter.
  • the beam used for signal transmission can be understood as a transmission beam (transmission beam, Tx beam), or a spatial domain transmission filter (spatial domain transmission filter), or a spatial transmission parameter (spatial transmission parameter), etc.
  • the beam used to receive the signal can be understood as a receiving beam (reception beam, Rx beam), or a spatial domain receive filter (spatial domain receive filter), or a spatial receive parameter (spatial RX parameter), etc.
  • the transmitting beam can be understood as the distribution of signal strength in different directions in space after the signal is transmitted by the antenna
  • the receiving beam can be understood as the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • the beam may be a wide beam, a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technology, and is not limited.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • One beam may include one or more antenna ports for transmitting one or more of a data channel, a control channel, or a reference signal.
  • One or more antenna ports forming a beam can also be regarded as an antenna port set.
  • the beam can correspond to the resource.
  • the network device measures different beams through different resources, and the terminal device feeds back the measured resource quality, and the network device can determine the quality of the corresponding beam.
  • one beam of the network device corresponds to one resource, so the resource index can be used to identify the beam corresponding to the resource.
  • the beam can also correspond to a reference signal, a synchronization signal, or a synchronization signal block SSB.
  • the network device sends different SSBs in different beam directions, for example, SSBs with different indexes are sent, and the terminal device performs the processing on each SSB.
  • the measurement result of the SSB by the terminal device can reflect the quality of the beams sent by different network devices when they reach the terminal device.
  • the terminal device adjusts and/or optimizes the receive beam according to the downlink beam, and then uses the optimized and/or adjusted receive beam as the transmit beam to send the uplink signal.
  • the network equipment can use the downlink beam as a receiving beam to receive uplink signals, thereby improving the quality of uplink signal reception.
  • the network device uses the downlink beam to send the SSB.
  • the terminal device adjusts and optimizes the beam for receiving the SSB, so that the quality of the received SSB is the best.
  • the terminal device uses the adjusted and optimized receiving beam as a sending beam, and uses the sending beam to send a random access preamble.
  • the network device uses the above-mentioned downlink beam for sending the SSB as the receiving beam, and uses the receiving beam to receive the random access preamble, thereby improving the quality of the random access preamble received by the terminal device.
  • the beam used for sending downlink signals may be referred to as a downlink beam
  • the beam used for sending uplink signals may be referred to as an uplink beam.
  • the transmitting beam may be an uplink beam
  • the receiving beam may be a downlink beam, or it may be described as a receiving beam as a beam for receiving a downlink signal.
  • the transmitting beam is a downlink beam
  • the receiving beam is an uplink beam, or it can be described as a receiving beam as a beam for receiving an uplink signal.
  • the transmitting beam and the transmitting beam are not distinguished, and can be replaced with each other.
  • Time division multiplexing combined with frequency division multiplexing can also be called time division multiplexing + frequency division multiplexing.
  • the combination of time division multiplexing and frequency division multiplexing may refer to occupying the same time domain resources and/or occupying the same frequency domain resources.
  • the objects of time division multiplexing combined with frequency division multiplexing can be signals, information, timing, sequences, preambles, etc., which are not limited.
  • Take Fig. 3 as an example, RO0 to RO7, and 8 ROs may be time division multiplexing combined with frequency division multiplexing.
  • the eight ROs in FIG. 3 may occupy the same time domain resources, and/or, occupy the same frequency domain resources.
  • RO0 and RO1 can occupy the same time domain resources but different frequency domain resources.
  • RO0 and RO2 can occupy the same frequency domain resources and different time domain resources.
  • the above 8 ROs can be divided into 4 groups, RO0 and RO1 are the first group, RO2 and RO3 are the second group, RO4 and RO5 are the third group, and RO6 and RO7 are the fourth group.
  • Different RO groups can be time-division multiplexed, that is, occupy the same frequency domain resources and different time domain resources.
  • the ROs included in the RO group are frequency division multiplexed, that is, occupy the same time domain resources and different frequency domain resources. Taking the first group as an example, RO0 and RO1 can be frequency-division multiplexed with each other, and both occupy the same time domain resources and different frequency domain resources.
  • a communication method is provided, and the execution subject of the method is a terminal device and a network device.
  • the terminal device may be the terminal device 120 in FIG. 1 described above, and the network device may be the network device 110 in FIG. 1 described above.
  • the terminal device may be at least one of the terminal device 201 to the terminal device 206 in FIG. 2 described above, and the network device may be the network device 207 in FIG. 2 described above.
  • the terminal device in this method can also be a component of a terminal device (such as a processor, a chip, or a chip system, etc.), and a network device in this method can also be a component of a network device (such as a processor, a chip, or a chip system). Chip system, etc.).
  • the process includes:
  • S501 The network device sends the first WUS.
  • the terminal device receives the first WUS.
  • the first WUS may be one of K WUS, and the K is an integer greater than or equal to 1.
  • K may be an integer greater than or equal to 2.
  • the terminal device may determine the first WUS based on conditions such as received signal power, received signal strength, or received signal quality of the WUS.
  • the terminal device may determine the first WUS based on the received signal power.
  • the terminal device can measure the received signal power of K WUSs, and determine the WUS with the largest received signal power as the first WUS.
  • the first WUS is the WUS with the largest received signal power among the K WUSs.
  • the terminal device may determine the WUS whose received signal power is greater than or equal to the first threshold among the received signal powers of the K WUSs as the first WUS. If the number of WUSs whose received signal power is greater than or equal to the first threshold is multiple, the terminal device can randomly select one WUS among the multiple WUSs or determine the WUS with the largest received signal power among the multiple WUSs, as the first One WUS.
  • the above-mentioned WUS is the above-mentioned first WUS.
  • the first WUS is one of the K WUSs whose received signal power is greater than or equal to the first threshold.
  • the terminal device may determine the first WUS based on the received signal strength.
  • the terminal device can measure the received signal strength of K WUSs, and determine the WUS with the highest received signal strength as the first WUS.
  • the first WUS is the WUS with the highest received signal strength among the K WUSs.
  • the terminal device may determine a WUS whose received signal strength is greater than or equal to the second threshold among the received signal strengths of the K WUSs. If the number of WUSs whose received signal strength is greater than or equal to the second threshold is multiple, the terminal device can randomly select one WUS among the multiple WUSs or determine the WUS with the highest received signal strength among the multiple WUSs, as the first One WUS.
  • the WUS is the aforementioned first WUS.
  • the first WUS is one of the K WUSs whose received signal strength is greater than or equal to the second threshold.
  • the terminal device may determine the first WUS based on the received signal quality.
  • the terminal device can measure the received signal quality of K WUSs, and determine the WUS with the highest received signal quality as the first WUS.
  • the first WUS is the WUS with the highest received signal quality among the K WUSs.
  • the terminal device may determine a WUS whose received signal quality is greater than or equal to the third threshold among the received signal qualities of the K WUSs. If there are multiple WUSs whose received signal quality is greater than or equal to the third threshold, the terminal device can randomly select one WUS among the multiple WUSs or determine the WUS with the highest received signal quality among the multiple WUSs, as the first WUS.
  • the above-mentioned WUS is the above-mentioned first WUS.
  • the first WUS is one of the K WUSs whose received signal quality is greater than or equal to the third threshold.
  • first threshold, second threshold, and third threshold may be predefined, or may be configured by a network device for a terminal device, which is not limited.
  • the above “greater than or equal to” can be replaced with “greater than” or the like.
  • frequency division multiplexing can be used between K WUSs, that is, K WUSs occupy the same time domain resources and different frequency domain resources, and the size of frequency domain resources occupied by different WUSs Can be the same or different.
  • the advantage of using frequency division multiplexing to transmit K WUSs is that the terminal device only needs to detect WUSs in a narrow bandwidth, which can reduce the complexity of detection.
  • K WUSs a time division multiplexing method
  • the K WUSs occupy the same frequency domain resources and different time domain resources
  • the size of the time domain resources occupied by different WUSs may be the same or different.
  • the advantage of K WUS transmission using time division multiplexing is that the terminal device can receive and detect different WUS within a fixed bandwidth, which is convenient for the terminal device to perform beam training or channel measurement according to the WUS.
  • time division multiplexing and frequency division multiplexing can be used between K WUSs, that is, K WUSs occupy different time domain resources and different frequency domain resources, and the size of time domain resources occupied by different WUSs can be the same Or different, the frequency domain resources occupied by different WUS can be the same or different.
  • the advantage of using time division multiplexing and frequency division multiplexing for K WUS transmission is that the terminal equipment can select one WUS for narrowband reception, but it needs to receive the best WUS at different locations at different times, and it can also perform broadband transmission. WUS receives and detects to perform beam training or channel measurement in the broadband range, so that the terminal device can select a suitable receiving method for WUS according to its own needs, and increase the flexibility of WUS detection.
  • one WUS among the K WUSs can occupy X time units in the time domain, and the unit of the time unit can be symbols or time slots; in the frequency domain, it can occupy Y frequency domain units.
  • the unit of the frequency domain unit may be a sub-carrier or a resource block (resource block, RB), etc.
  • X and Y are integers greater than or equal to 1.
  • the time unit occupied by a WUS can be continuous or non-continuous in time.
  • the frequency domain unit occupied by a WUS can be continuous or non-continuous in the frequency domain.
  • the absolute time length of WUS can be used to synchronize the timing.
  • the sub-carrier spacing adjusts the receiving time of the wireless signal, which simplifies the implementation of the terminal equipment.
  • K WUS can be generated by different sequences.
  • K WUS can be generated based on K sequences.
  • the network device may generate K sequences, and the sequences may be m sequences, Gold sequences, or ZC sequences, etc. The initial phases, initial values, or root sequences of the K sequences are different from each other.
  • K WUSs can be generated.
  • K WUS can be generated from the same sequence.
  • a network device can generate a sequence, which can be an m sequence, a Gold sequence, or a ZC sequence. Then, different beam weights are performed on the K parts of the above sequence to obtain K WUS.
  • the network device may perform different precoding on K parts of a WUS to obtain K WUSs and so on.
  • the terminal device after the terminal device receives the first WUS in S501, it may further include:
  • S504 The network device sends a paging message.
  • the terminal device receives the paging message.
  • the network device initiates a paging to the terminal device. After receiving the paging message, the terminal device can initiate random access after finding that it is paged, and perform the subsequent steps of S502 and S503.
  • the terminal device can receive the paging message in the following manner. For example, if the network device uses the WUS presence or absence method to indicate whether the terminal device monitors the paging message, if the terminal device receives the first WUS, it can determine the paging occasion (PO), and in the determined PO Above, monitor the DCI used to schedule paging messages, that is, paging DCI. In an example, since a PO includes one or more PDCCH monitoring opportunities, the terminal device monitors paging DCI on the PO, which can be described as the terminal device detecting paging on one or more PDCCH monitoring opportunities included in the PO DCI. The terminal device can receive the PDSCH carrying the paging message according to the scheduling of the paging DCI.
  • the network device uses the WUS presence or absence method to indicate whether the terminal device monitors the paging message
  • the terminal device receives the first WUS, it can determine the paging occasion (PO), and in the determined PO Above, monitor the DCI used to schedule paging messages, that is
  • the terminal device monitors the paging message for paging itself, it determines that it is paged and initiates a random access procedure, that is, the following procedures of S502 and S503 are executed. If the terminal device does not monitor the paging message for paging itself, it will continue to sleep to reduce energy consumption.
  • the above-mentioned first WUS can be described as being used to instruct the terminal device to monitor the paging DCI in the PO.
  • the network device can use different WUS to instruct the terminal device whether to monitor the paging DCI in the PO.
  • the network device can use WUS1 to instruct the terminal device to monitor the paging DCI in the PO, and use WUS2 to instruct the terminal device not to monitor the paging DCI in the PO.
  • the terminal device After the terminal device receives the first WUS, if the first WUS is WUS1, the terminal device can monitor the paging DCI in the PO, and receive the paging message according to the scheduling of the paging DCI. If the terminal device finds that the paging list included in the paging message includes its own identity, it determines that it is paged and initiates a random access procedure, that is, the following procedures of S502 and S503 are executed.
  • the terminal device does not monitor the paging DCI in the PO, or if there is no identity in the paging list included in the paging message received according to the scheduling of the paging DCI, it continues to sleep. If the first WUS received by the terminal device is WUS2, the terminal device can continue to sleep. At this time, the first WUS can be described as indicating whether the terminal device monitors paging DCI in the PO.
  • WUS1 and WUS2 can be distinguished by sequence, or can be distinguished by the time-frequency resource of transmission, or distinguished in other ways, etc., which are not limited.
  • the terminal device can distinguish both WUS1 and WUS2 sent by the network device, both are within the protection scope of the embodiments of the present application.
  • the terminal device determines a first RO, where the first RO is one of the N ROs, the N is an integer greater than or equal to 1, and the first WUS has a corresponding relationship with the N ROs.
  • the terminal device may determine the first RO according to the first WUS, where there is a correspondence between the first WUS and the N ROs.
  • the terminal device may determine that one RO among the N ROs is the first RO according to the first WUS, where the first WUS and the N ROs have a corresponding relationship.
  • the terminal device may randomly select one RO from the foregoing multiple ROs as the first RO.
  • N is equal to 1
  • the terminal device can determine that the RO is the first RO.
  • the corresponding relationship between the first WUS and the N ROs can be predefined or configured by the network device for the terminal device.
  • the network device can use radio resource control (radio resource control, RRC) signaling for terminal equipment configuration, etc.
  • RRC radio resource control
  • the frequency domain resources occupied by the WUS may be the same as the frequency domain resources occupied by the RO corresponding to the WUS.
  • the frequency domain resources occupied by the first WUS may be the same as the frequency domain resources occupied by the N ROs.
  • the correspondence between the first WUS and the N ROs may be a direct correspondence or an indirect correspondence.
  • the direct correspondence between the first WUS and the N ROs may be: the time domain resource of the first WUS has a corresponding relationship with the N ROs; or the frequency domain resource of the first WUS has a corresponding relationship with the N ROs; Or, the code domain resource of the first WUS has a corresponding relationship with N ROs; or, the airspace resource of the first WUS has a corresponding relationship with N ROs; or, the identity of the first WUS has a corresponding relationship with N ROs; or, The sequence of the first WUS has a corresponding relationship with the N ROs.
  • the indirect correspondence between the first WUS and the N ROs may be: the first WUS and the first SSB are quasi co-located, and there is a correspondence between the first SSB and the N ROs; or, the first WUS and the first CSI-RS Quasi-co-located, the first CSI-RS has a corresponding relationship with N ROs; or, the first WUS and the first DMRS are quasi-co-located, and the first DMRS has a corresponding relationship with the N ROs.
  • the WUS in the embodiment of this application may be a reference signal with the function of indicating whether the terminal device detects paging DCI, such as CSI-RS, that is, the WUS in the embodiment of this application may be Specifically, it is a CSI-RS, and the CSI-RS has a function of indicating whether the terminal device detects paging DCI.
  • the WUS in the embodiment of the present application may be a reference signal with a function of instructing the terminal device to detect paging DCI, such as CSI-RS, that is, the WUS in the embodiment of the present application may specifically be a CSI-RS, and the CSI-RS has the function of instructing terminal equipment to detect paging DCI.
  • the configuration information of WUS in the embodiment of this application can use the CSI-RS configuration method, and the WUS transmission and detection method can also use the CSI-RS transmission and detection method. Thereby reducing the implementation complexity of network equipment and terminal equipment.
  • the network device for the terminal device can be predefined or configured by the network device for the terminal device, and is not limited. .
  • the process shown in FIG. 5 may further include: S500: the network device sends configuration information to the terminal device, and the configuration information is used to configure the correspondence between WUS and RO.
  • the configuration information can be sent in a manner such as broadcast, multicast, or unicast, and is not limited.
  • the specific configuration method can include the following two schemes:
  • the first scheme It can be called a direct corresponding scheme between WUS and RO
  • the network device can send configuration information to the terminal device, and the configuration information can configure the number of WUS corresponding to one RO, etc.
  • the terminal device can determine the correspondence between RO and WUS based on the above configuration information. For example, in an implementation manner, the terminal device may first obtain the WUS list and the RO list. According to the foregoing WUS list and RO list, and the number of WUSs corresponding to one RO configured in the configuration information, the corresponding relationship between WUS and RO can be determined.
  • the RO list configured by the network device for the terminal device includes 4 ROs, with indexes ranging from RO0 to RO3, and the WUS list includes 8 WUSs with indexes ranging from WUS0 to WUS7.
  • the network device The number of WUSs corresponding to each RO is also configured to be 2 through the above configuration information, that is, each RO corresponds to 2 WUSs.
  • the terminal device can determine the correspondence between RO and WUS based on the above configuration information as follows: RO0 corresponds to ⁇ WUS0, WUS1 ⁇ , RO1 corresponds to ⁇ WUS2, WUS3 ⁇ , RO2 corresponds to ⁇ WUS4, WUS5 ⁇ , and RO3 corresponds to ⁇ WUS6, WUS7 ⁇ .
  • the network device sends configuration information to the terminal device, and the configuration information can be used to configure the WUS corresponding to each RO.
  • the terminal device determines the corresponding relationship between RO and WUS according to the configuration information. For example, the above example is still used, including 4 ROs, RO0 to RO3 in sequence.
  • the network device indicates the WUS corresponding to each RO mentioned above. As shown in Table 1, the network device indicates that the WUS corresponding to RO0 is WUS0 and WUS1, and that the WUS corresponding to RO1 is WUS2 and WUS3.
  • the network device indication method is similar to the above, and will not be repeated. It should be noted that if one RO corresponds to multiple WUSs, the network device may indicate multiple WUSs corresponding to the RO, or the network device may indicate the WUS set corresponding to the RO.
  • the network device sends configuration information to the terminal device, and the configuration information is used to configure the RO corresponding to each WUS.
  • the terminal device can determine the corresponding relationship between WUS and RO according to the configuration information. For example, as shown in Table 2 as an example, there are 8 WUSs, followed by WUS0 to WUS7, and the network device indicates the RO corresponding to each of the 8 WUSs. Specifically, the network device indicates that the RO corresponding to WUS0 is RO0, that the RO corresponding to WUS1 is RO1, and that the RO corresponding to WUS2 is RO2.
  • the rest of the instructions from WUS3 to WUS7 are similar to the above and will not be repeated here.
  • the network device can indicate multiple ROs corresponding to the WUS, or the network device can indicate the RO set corresponding to the WUS, etc. limited.
  • the quasi co-location relationship between WUS and other signals is not limited, and the other signals may be SSB, CSI-RS, or DMRS.
  • WUS may not be co-located with SSB, CSI-RS, and DMRS, and WUS itself has its own specific beam direction.
  • the advantage of this method is that the WUS beam is more flexible, and the network device can set the width and direction of the WUS beam according to its own needs, and is not limited to the beam mode of SSB, CSI-RS or DMRS.
  • WUS may be quasi-co-located with at least one of SSB, CSI-RS, or DMRS.
  • the advantage of this method is that the terminal device can optimize and/or adjust the WUS receiving beam according to the measurement result of at least one of the SSB, CSI-RS or DMRS, and reduce the probability of missed detection or wrong detection of WUS.
  • the second scheme it can be called an indirect corresponding scheme between WUS and RO
  • the correspondence between WUS and RO may include: correspondence between WUS and other signals, and correspondence between other signals and RO.
  • the other signals may include one or more of SSB, CSI-RS, or DMRS signals.
  • the corresponding relationship between WUS and other signals may be a quasi co-location relationship.
  • the correspondence between WUS and RO is established through the method of "WUS-other signals-RO". Taking SSB as an example, there may be a quasi co-location relationship between WUS and SSB, and there may be a corresponding relationship between SSB and RO, so there is also a corresponding relationship between WUS and RO.
  • the advantage of the second solution is that the correspondence between other signals and RO can be multiplexed, so that better compatibility can be obtained.
  • the manner in which the foregoing WUS has a corresponding relationship with other signals may be specifically: a quasi co-location relationship between WUS and other signals.
  • the quasi co-location relationship between WUS and other signals may be indicated by a network device or configured to a terminal device, or the quasi co-location relationship between WUS and other signals is predefined and is not limited.
  • the configuration information in the above S500 can be used to configure WUS and/or RO in addition to the corresponding relationship between WUS and RO.
  • the network device may additionally send configuration information of WUS for configuring WUS.
  • the network device additionally sends the configuration information of the RO for configuring the RO, which is not limited.
  • the WUS and/or RO are predefined.
  • the network device can send it through broadcast, unicast, or multicast.
  • the configuration information of the WUS may indicate at least one of time domain resources, frequency domain resources, code domain resources, or space domain resources occupied by the WUS.
  • the network device can configure each WUS separately, or the network device can configure multiple WUSs at the same time, and the multiple WUSs can be time division, frequency division, or code division, which is not limited. Or, the time domain resources, frequency domain resources, or code domain resources occupied by WUS are predefined.
  • the network device can send it through broadcast, unicast, or multicast.
  • the configuration information of the RO may configure at least one of a time domain resource, a frequency domain resource, or a random access preamble set corresponding to the RO.
  • the network device may be configured with a physical random access channel (physical random access channel, PRACH) configuration index.
  • PRACH physical random access channel
  • the terminal device can determine the RO configuration information corresponding to the PRACH configuration index according to the PRACH configuration index.
  • the terminal device can determine at least one of a time domain resource, a frequency domain resource, or a random access preamble set corresponding to the RO according to the determined RO configuration information described above.
  • the network device may additionally indicate the number of frequency division multiplexing of the RO in the frequency domain, the frequency domain position of the first RO in the frequency domain, or one or more of the available random access preamble sets. Wait. It should be noted that in a period, the index of the RO may be sorted in the order of the frequency domain first and the time domain second.
  • the terminal device sends a random access preamble in the first RO.
  • the network device receives the random access preamble in the first RO.
  • the random access preamble can also be referred to as a random access request, a preamble, a preamble carried by the physical random access channel PRACH, a RACH preamble, message 1 (message 1, Msg1), Or message A (message A, MsgA), etc.
  • the network device may use a downlink beam to transmit the foregoing first WUS.
  • the terminal device may adjust and/or optimize the receiving beam, so that the signal quality of the first WUS received by the terminal device is better.
  • the terminal device can use the adjusted and/or optimized receiving beam as the sending beam.
  • the terminal device may use the foregoing transmission beam to send a random access preamble.
  • the network device may use the downlink beam sending the first WUS as the receiving beam, and receive the random access preamble, so as to utilize the reciprocity of the beam to improve the reception quality of the random access preamble.
  • the network equipment uses the beam corresponding to the WUS to receive the random access preamble, which can improve the flexibility and beam gain of receiving the random access preamble.
  • a schematic diagram of sending a random access preamble is provided.
  • the horizontal axis represents time
  • the vertical axis represents frequency.
  • the above 8 WUSs can be time division multiplexing combined with frequency division multiplexing. Specifically, frequency multiplexing between WUS0 to WUS3, frequency division multiplexing between WUS4 and WUS7, and time division multiplexing between "WUS0 to WUS3" and "WUS4 and WUS7".
  • 16 ROs are included, RO0 to RO15 in turn.
  • the aforementioned 16 ROs may be time division multiplexing combined with frequency division multiplexing.
  • “RO0 to RO3”, “RO4 to RO7”, “RO8 to RO11” and “RO12 to RO15” are time-division multiplexed.
  • WUS0 corresponds to RO0 and RO1
  • WUS1 corresponds to RO2 and RO3
  • WUS2 corresponds to RO4 and RO5
  • WUS3 corresponds to RO6 and RO7
  • WUS4 corresponds to RO8 and RO8.
  • RO9 and WUS5 correspond to RO10 and RO11
  • WUS6 correspond to RO12 and RO13
  • WUS7 correspond to RO14 and RO15.
  • the network device may send 8 WUSs, with indexes from WUS0 to WUS7 in order, and the foregoing 8 WUSs have different beam directions. It can be seen from Fig. 6 that, since the terminal device is located in the beam direction of WUS3, it is likely that the received signal strength of WUS3 is the highest. The terminal device can randomly select one RO among RO6 and RO7 corresponding to WUS3 to send the random access preamble. It should be noted that, in the schematic diagram shown in FIG. 6, the network device is the gNB and the terminal device is the UE, as an example for description.
  • the embodiments of the present application also provide corresponding devices, including corresponding modules for executing the foregoing embodiments.
  • the module can be software, hardware, or a combination of software and hardware.
  • FIG. 7 shows a schematic diagram of the structure of a device.
  • the device 700 may be a network device, a terminal device, a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. Or processor, etc.
  • the device can be used to implement the method described in the foregoing method embodiment, and for details, please refer to the description in the foregoing method embodiment.
  • the apparatus 700 may include one or more processors 701, and the processor 701 may also be referred to as a processing unit, which may implement certain control functions.
  • the processor 701 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process The data of the software program.
  • the processor 701 may also store instructions and/or data 703, and the instructions and/or data 703 may be executed by the processor, so that the apparatus 700 executes the above method embodiments. Described method.
  • the processor 701 may include a transceiver unit for implementing receiving and sending functions.
  • the transceiver unit may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces, or interface circuits used to implement the receiving and transmitting functions can be separate or integrated.
  • the foregoing transceiver circuit, interface, or interface circuit can be used for code/data reading and writing, or the foregoing transceiver circuit, interface, or interface circuit can be used for signal transmission or transmission.
  • the device 700 may include a circuit, which may implement the sending or receiving or communication functions in the foregoing method embodiments.
  • the device 700 may include one or more memories 702, on which instructions 704 may be stored, and the instructions may be executed on the processor, so that the device 700 executes the foregoing method embodiments. Described method.
  • data may also be stored in the memory.
  • instructions and/or data may also be stored in the processor.
  • the processor and the memory can be provided separately or integrated together. For example, the corresponding relationship described in the foregoing method embodiment may be stored in a memory or in a processor.
  • the device 700 may further include a transceiver 705 and/or an antenna 706.
  • the processor 701 may be referred to as a processing unit, and controls the device 700.
  • the transceiver 705 may be called a transceiver unit, a transceiver, a transceiver circuit, a transceiver device, or a transceiver module, etc., for implementing the transceiver function.
  • the apparatus 700 in the embodiment of the present application may be used to execute the method described in FIG. 5 in the embodiment of the present application.
  • the processor and transceiver described in this application can be implemented in integrated circuit (IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (ASIC), printed circuit board ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured by various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the device described in the above embodiment may be a network device or a terminal device, but the scope of the device described in this application is not limited to this, and the structure of the device may not be limited by FIG. 7.
  • the device can be a stand-alone device or can be part of a larger device.
  • the device may be:
  • the IC collection may also include storage components for storing data and/or instructions;
  • ASIC such as modem (MSM)
  • FIG. 8 provides a schematic structural diagram of a terminal device.
  • the terminal device can be applied to the scenario shown in FIG. 1 or FIG. 2.
  • FIG. 8 only shows the main components of the terminal device.
  • the terminal device 800 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit processes the baseband signal to obtain a radio frequency signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. .
  • the radio frequency circuit receives the radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and performs processing on the data. deal with.
  • FIG. 8 only shows a memory and a processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present invention.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device and execute Software program, processing the data of the software program.
  • the processor in FIG. 8 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and control circuit with the transceiving function can be regarded as the transceiving unit 811 of the terminal device 800, and the processor with the processing function can be regarded as the processing unit 812 of the terminal device 800.
  • the terminal device 800 includes a transceiving unit 811 and a processing unit 812.
  • the transceiving unit may also be referred to as a transceiver, transceiver, transceiving device, and so on.
  • the device for implementing the receiving function in the transceiving unit 811 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 811 can be regarded as the sending unit, that is, the transceiving unit 811 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the foregoing receiving unit and sending unit may be an integrated unit or multiple independent units.
  • the above-mentioned receiving unit and sending unit may be in one geographic location, or may be scattered in multiple geographic locations.
  • the device can be a terminal or a component of the terminal (for example, an integrated circuit, a chip, etc.).
  • the device may be a network device, or a component of a network device (for example, an integrated circuit, a chip, etc.).
  • the device may also be another communication module, which is used to implement the method in the method embodiment of the present application.
  • the device 900 may include: a processing module 902 (or referred to as a processing unit).
  • a transceiver module 901 or called a transceiver unit
  • a storage module 903 or called a storage unit).
  • one or more modules as shown in Figure 9 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors It may be implemented with a transceiver; or implemented by one or more processors, memories, and transceivers, which is not limited in the embodiment of the present application.
  • the processor, memory, and transceiver can be set separately or integrated.
  • the device has the function of implementing the terminal described in the embodiment of the application.
  • the device includes a module or unit or means corresponding to the terminal to execute the steps related to the terminal described in the embodiment of the application.
  • the function or unit is Means can be implemented through software, or through hardware, or through hardware executing corresponding software, or through a combination of software and hardware.
  • the device has the function of implementing the network device described in the embodiment of this application.
  • the device includes the module or unit or means corresponding to the network device executing the steps involved in the network device described in the embodiment of this application.
  • the functions or units or means (means) can be realized by software, or by hardware, or by hardware executing corresponding software, or by a combination of software and hardware.
  • each module in the device 900 in the embodiment of the present application may be used to execute the method described in FIG. 5 in the embodiment of the present application.
  • an apparatus 900 may include: a processing module 902 and a transceiver module 901.
  • the apparatus 900 may be used to perform related operations of the terminal device in FIG. 5 described above.
  • the transceiver module 901 is configured to receive a first wake-up signal, where the first wake-up signal is one of K wake-up signals, and the K is an integer greater than or equal to 1;
  • the processing module 902 is used to determine the first random access Channel timing RO, the first RO is one of the N ROs, the N is an integer greater than or equal to 1, and the first wake-up signal has a corresponding relationship with the N ROs;
  • the transceiver module 901 also uses In the first RO, a random access preamble is sent.
  • the first wake-up signal has a corresponding relationship with the N ROs, including one or more of the following: a time domain resource of the first wake-up signal has a corresponding relationship with the N ROs; The frequency domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the code domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the spatial resource of the first wake-up signal has a corresponding relationship with the N ROs; The N ROs have a corresponding relationship; the identifier of the first wake-up signal has a corresponding relationship with the N ROs; or, the sequence of the first wake-up signal has a corresponding relationship with the N ROs.
  • the first wake-up signal has a corresponding relationship with the N ROs, and includes one or more of the following: the first wake-up signal is quasi-co-located with the first synchronization signal block SSB, and the first One SSB has a corresponding relationship with the N ROs; the first wake-up signal and the first channel state information reference signal CSI-RS are quasi co-located, and the first CSI-RS has a corresponding relationship with the N ROs; Alternatively, the first wake-up signal and the first demodulation reference signal DMRS are quasi co-located, and the first DMRS has a corresponding relationship with the N ROs.
  • the first wake-up signal is one of K wake-up signals, including one or more of the following:
  • the first wake-up signal is the wake-up signal with the highest received signal power among the K wake-up signals; the first wake-up signal is the wake-up signal of the K wake-up signals whose received signal power is greater than or equal to a first threshold One; the first wake-up signal is the wake-up signal with the highest received signal strength among the K wake-up signals; the first wake-up signal is the wake-up signal with the received signal strength greater than or equal to the second threshold among the K wake-up signals.
  • the first wake-up signal is the wake-up signal with the highest received signal quality among the K wake-up signals; or, the first wake-up signal is the received signal quality of the K wake-up signals greater than or equal to the third One of the threshold wake-up signals.
  • the K is an integer greater than or equal to 1, specifically: the K is an integer greater than or equal to 2.
  • the K wake-up signals occupy different frequency domain resources, or the K wake-up signals occupy different time domain resources.
  • the first wake-up signal is used to indicate whether to monitor the downlink control information used for paging in the paging occasion, or the first wake-up signal is used to indicate whether to monitor the downlink control information used for paging in the paging occasion Downlink control information.
  • the apparatus 900 may be used to perform related operations on the network device side in the process shown in FIG. 5 above.
  • the processing module 902 is configured to generate a first wake-up signal, where the first wake-up signal is one of K wake-up signals, and the K is an integer greater than or equal to 1; the transceiver module 901 is used to send the first wake-up signal Signal; the transceiver module 901 is also used to receive a random access preamble on the first random access channel timing RO, the first RO is one of N ROs, and the N is an integer greater than or equal to 1,
  • the first wake-up signal has a corresponding relationship with the N ROs.
  • the first wake-up signal has a corresponding relationship with the N ROs, including one or more of the following: a time domain resource of the first wake-up signal has a corresponding relationship with the N ROs; The frequency domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the code domain resource of the first wake-up signal has a corresponding relationship with the N ROs; the spatial resource of the first wake-up signal has a corresponding relationship with the N ROs; The N ROs have a corresponding relationship; the identifier of the first wake-up signal has a corresponding relationship with the N ROs; or, the sequence of the first wake-up signal has a corresponding relationship with the N ROs.
  • the first wake-up signal has a corresponding relationship with the N ROs, and includes one or more of the following: the first wake-up signal is quasi-co-located with the first synchronization signal block SSB, and the first One SSB has a corresponding relationship with the N ROs; the first wake-up signal and the first channel state information reference signal CSI-RS are quasi co-located, and the first CSI-RS has a corresponding relationship with the N ROs; Alternatively, the first wake-up signal and the first demodulation reference signal DMRS are quasi co-located, and the first DMRS has a corresponding relationship with the N ROs.
  • the first wake-up signal is one of K wake-up signals, including one or more of the following: the first wake-up signal is the wake-up signal with the highest received signal power among the K wake-up signals The first wake-up signal is one of the wake-up signals whose received signal power is greater than or equal to a first threshold among the K wake-up signals; the first wake-up signal is the one with the highest received signal strength among the K wake-up signals A wake-up signal; the first wake-up signal is one of the K wake-up signals whose received signal strength is greater than or equal to a second threshold; the first wake-up signal is the received signal quality among the K wake-up signals The largest wake-up signal; or, the first wake-up signal is one of the K wake-up signals whose received signal quality is greater than or equal to the third threshold.
  • the K is an integer greater than or equal to 1, including: the K is an integer greater than or equal to 2.
  • the K wake-up signals occupy different frequency domain resources, or the K wake-up signals occupy different time domain resources.
  • the first wake-up signal is used to indicate whether to monitor the downlink control information used for paging in the paging occasion, or the first wake-up signal is used to indicate whether to monitor the downlink control information used for paging in the paging occasion Downlink control information.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the processing unit used to execute these technologies at a communication device can be implemented in one or more general-purpose processors, DSPs, digital signal processing devices, ASICs, Programmable logic device, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware component, or any combination of the foregoing.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. achieve.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase 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
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the function of any of the foregoing method embodiments is realized.
  • This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • system and “network” in this article are often used interchangeably in this article.
  • the term “and/or” in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone In the three cases of B, A can be singular or plural, and B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.
  • At least one of or “at least one of” herein means all or any combination of the listed items, for example, "at least one of A, B and C", It can mean: A alone exists, B alone exists, C exists alone, A and B exist at the same time, B and C exist at the same time, and there are six cases of A, B and C at the same time, where A can be singular or plural, and B can be Singular or plural, C can be singular or plural.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.
  • the corresponding relationships shown in the tables in this application can be configured or pre-defined.
  • the value of the information in each table is only an example, and can be configured to other values, which is not limited in this application.
  • the corresponding relationship shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, and so on.
  • the names of the parameters shown in the titles in the above tables may also be other names that can be understood by the communication device, and the values or expressions of the parameters may also be other values or expressions that the communication device can understand.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.
  • the pre-definition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-fired.
  • the systems, devices, and methods described in this application can also be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units 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 It 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 they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments 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 the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

一种随机接入方法及装置，该方法的原理为：终端设备接收第一唤醒信号之后，根据第一唤醒信号与N个随机接入信道时机的对应关系，确定N个随机接入信道时机；终端设备在N个随机接入信道时机中，确定第一随机接入信道时机，且在第一随机接入信道时机中发送随机接入前导。网络设备将发送第一唤醒信号的波束，作为接收波束，接收终端设备发送的随机接入前导。由于唤醒信号具有波束较窄，波束灵活，波束增益高等优点。因此，当网络设备在采用第一唤醒信号的波束接收上述随机接入前导时，也存在灵活性高，波束增益高等优点。

Description

一种随机接入方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种随机接入方法及装置。
背景技术
在新无线(new radio，NR)通信系统中，针对处于空闲(idle)态、休眠(sleeping)态或非激活(inactive)态的终端设备，网络设备可向其发送寻呼消息，以对其发起寻呼。其中，调度寻呼消息的下行控制信息(downlink control information，DCI)，也即寻呼DCI，可在寻呼时机(paging occasion，PO)中发送。终端设备可在PO中，接收、检测或侦听该寻呼DCI。终端设备可以根据该寻呼DCI的调度，接收网络设备发送的寻呼消息，以确定网络设备是否对自己发起了寻呼。比如，寻呼消息中可包括寻呼列表，若上述寻呼列表中包括终端设备自己的标识，则终端设备可确定网络设备对自己发起了寻呼。
其中，当终端设备确定网络设备对自己发起了寻呼之后，或者，当终端设备期望向网络设备发送上行数据时，终端设备可以发起随机接入。比如，终端设备可在随机接入信道时机(random access channel，(RACH)occasion，RO)中向网络设备发送随机接入前导。关于终端设备如何确定用于发送随机接入前导的RO，是当前的研究热点。
发明内容
本申请实施例提供一种通信方法及装置，以使得终端设备可确定用于发送随机接入前导的RO。
第一方面，提供一种通信方法。该方法可以由终端设备执行，也可以由终端设备的部件(例如处理器、芯片、或芯片系统等)执行，包括：接收来自网络设备的第一唤醒信号，第一唤醒信号为K个唤醒信号中的一个，K为大于或等于1的整数；根据第一唤醒信号确定第一RO，第一RO为N个RO中的一个，其中第一唤醒信号与N个RO存在对应关系，N为大于或等于1的整数；终端设备在第一RO中向网络设备发送随机接入前导。随机接入前导还可称为随机接入请求、前导、由物理随机接入信道PRACH承载的前导、RACH前导、消息1(message 1，Msg1)、或消息A(message A，MsgA)等。
在一种方案中，同步信号块(synchronization signal block，SSB)与RO存在对应关系，终端设备在SSB对应的RO上发送随机接入前导。由于SSB的波束往往是固定方向上的宽波束，存在灵活性较差，波束增益小等缺点。因此，当网络设备在SSB的波束中接收随机接入前导时，也存在灵活性差，波束增益小等缺点。而在上述第一方面的方案中，唤醒信号与RO存在对应关系，终端设备在唤醒信号对应的RO上发送随机接入前导。相应的，网络设备在唤醒信号的波束中接收随机接入前导。由于唤醒信号与SSB相比，具有波束较窄，灵活性好，波束增益大等优点。因此，网络设备采用唤醒信号对应的波束接收随机接入前导，也具有灵活性较高，波束增益大等优点。
在一种可能的设计中，第一唤醒信号与N个RO之间的对应关系可包括以下中一项或多项：第一唤醒信号的时域资源与N个RO存在对应关系；第一唤醒信号的频域资源与N个RO存在对应关系；第一唤醒信号的码域资源与N个RO存在对应关系；第一唤醒信号 的空域资源与N个RO存在对应关系；第一唤醒信号的标识与N个RO存在对应关系；或者，第一唤醒信号的序列与N个RO存在对应关系。
在上述设计中，第一唤醒信号与N个RO之间的对应关系，可称为唤醒信号与RO之间的直接对应关系。第一唤醒信号与N个RO之间的直接对应关系，可为预定义的，或者，由网络设备配置的。在该设计中，并不限定唤醒信号与其它信号的准共址关系。例如，第一唤醒信号可以本身具有自己特定的波束方向，因此第一唤醒信号的波束较为灵活，网络设备可以根据自己的需求，设置第一唤醒信号的波束宽窄和方向，不受限于其它信号的波束方式。
在一种可能的设计中，第一唤醒信号与N个RO之间的对应关系可包括以下中一项或多项：第一唤醒信号与第一同步信号块SSB准共址，第一SSB与N个RO存在对应关系；第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，第一CSI-RS与N个RO存在对应关系；或者，第一唤醒信号与第一解调参考信号DMRS准共址，第一DMRS与N个RO存在对应关系。
在上述设计中，第一唤醒信号与N个RO之间的对应关系，可称为唤醒信号与RO的间接对应关系。第一唤醒信号与N个RO之间的间接对应关系，可为预定义的，或者，由网络设备配置的。在该设计中，通过第一唤醒信号与其它某一信号(比如，第一SSB、第一CSI-RS或第一DMRS等)的准共址关系，使得终端设备可根据上述第一SSB、第一CSI-RS或第一DMRS等的测量结果，优化和/或调整第一唤醒信号的接收波束，降低第一唤醒信号的漏检或错检概率。
在一种可能的设计中，第一唤醒信号为K个唤醒信号中的一个，包括以下中的一项或多项：
第一唤醒信号为K个唤醒信号中接收信号功率最大的唤醒信号；第一唤醒信号为K个唤醒信号中接收功率大于或等于第一门限的唤醒信号，第一门限可为预定义的，或者，由网络设备配置的；第一唤醒信号为K个唤醒信号中接收信号强度最大的唤醒信号；第一唤醒信号为K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号，第二门限为预定义的，或者，由网络设备配置的；第一唤醒信号为K个唤醒信号中接收信号质量最大的唤醒信号；或者，第一唤醒信号为K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号，第三门限为预定义，或者，由网络设备配置的。
在上述设计中，终端设备根据接收信号功率、接收信号强度或接收信号质量等条件，确定第一唤醒信号的过程，相类似。以下，以终端设备根据接收信号功率，确定第一唤醒信号为例，进行说明。比如，在一种可能的实现中，终端设备可检测K个唤醒信号的接收功率，确定接收功率最大的唤醒信号即为上述第一唤醒信号。在另一种可能的实现中，终端设备可检测K个唤醒信号的接收功率；在K个唤醒信号中，确定接收功率大于或等于第一门限的唤醒信号，作为上述第一唤醒信号。需要说明的，若K个唤醒信号中，接收功率大于或等于第一门限的唤醒信号的数量为多个，终端设备可在多个唤醒信号中随机选择一个唤醒信号作为上述第一唤醒信号，或者，终端设备也可在上述接收功率大于或等于第一门限的多个唤醒信号中，确定接收功率最大的唤醒信号，作为第一唤醒信号等。
通过上述描述可以看出，终端设备在K个唤醒信号中，选择满足条件的唤醒信号，作为第一唤醒信号。根据波束互易原则，之后终端设备将接收第一唤醒信号的接收波束，作为上行波束发送随机接入前导。相应的，网络设备将发送第一唤醒信号的下行波束，作为 接收波束接收随机接入前导。由于传输第一唤醒信号的波束，与传输随机接入前导的波束，是相同的波束。因此，当选择的第一唤醒信号满足上述接收功率最大等条件时，传输的随机接入前导也将满足上述条件。比如，所传输的随机接入前导的接收功率较大，或者，所传输的随机接入前导的接收功率大于或等于某一门限等，能够提高随机接入前导的传输质量。
在一种可能的设计中，上述K可具体为大于或等于2的整数。
在一种可能的设计中，K个唤醒信号可占用不同的频域资源。比如，K个唤醒信号可为频分复用的，彼此间占用相同的时域资源，不同的频域资源。每个唤醒信号所占用的频域资源大小相同或不同。优点在于，在频分复用的设计下，唤醒信号可以在相对较窄的带宽内发送，使得终端设备能够在较窄带宽内检测唤醒信号，有利用降低检测的复杂度。
或者，K个唤醒信号可占用不同的时域资源。比如，K个唤醒信号可为时分复用的，彼此间占用相同的频域资源，不同的时域资源。每个唤醒信号所占用的时域资源大小相同或不同。优点在于，在时分复用的设计下，唤醒信号可以在一定的带宽内发送，使得终端设备可以在固定带宽内对不同的WUS进行接收和检测，便于终端设备根据WUS进行波束训练或信道测量。
或者，K个唤醒信号可采用时分复用结合频分复用的发送。优点在于，终端设备既可以对WUS进行窄带接收，但当需要在不同的时间内接收不同位置的WUS时，也可以宽带的方式对WUS信号进行接收和检测，以便进行宽带范围内波束训练或信道测量，从而使得终端设备可以根据自身的需要对WUS信号选择合适的接收方式，增加WUS信号检测的灵活性。
在一种可能的设计中，第一唤醒信号用于指示在寻呼时机PO中监听用于寻呼的下行控制信息DCI。比如，网络设备可采用是否发送第一唤醒信号，来指示终端设备是否在PO中监听寻呼DCI。若终端设备检测到第一唤醒信号，则可在PO中监听寻呼DCI。若终端设备未监测到第一唤醒信号，则可在PO中不监听寻呼DCI。由此能够避免终端设备周期性地在PO中监测寻呼DCI，节省了终端设备的能耗。
或者，第一唤醒信号用于指示是否在PO中监听用于寻呼的下行DCI。比如，网络设备可采用不同的唤醒信号，来指示终端设备是否在PO中监听寻呼DCI。比如，网络设备可采用唤醒信号1，指示终端设备在PO中监听寻呼DCI。采用唤醒信号2，指示终端设备在PO中不监听寻呼DCI。当终端设备接收的第一唤醒信号为唤醒信号1时，则终端设备在PO中监听寻呼DCI。当终端设备接收的第一唤醒信号为唤醒信号2时，则终端设备在PO中不再监听寻呼DCI。由此能够避免终端设备周期性地在PO中监听寻呼DCI，节省了终端设备的能耗。
第二方面，提供一种通信方法，该方面的有益效果可参见第一方面中相关的记载，此处不再赘述。该方法可以由网络设备执行，也可以由网络设备的部件(例如处理器、芯片、或芯片系统等)执行，该方法包括：向终端设备发送第一唤醒信号，第一唤醒信号为K个唤醒信号中的一个，K为大于或等于1的整数；在第一RO中接收随机接入前导，第一RO为N个RO中的一个，第一唤醒信号与N个RO存在对应关系，N为大于或等于1的整数。随机接入前导还可称为随机接入请求、前导、由物理随机接入信道PRACH承载的前导、RACH前导、消息1(message 1，Msg1)、或消息A(message A，MsgA)等。
在一种可能的设计中，第一唤醒信号与所述N个RO存在对应关系，包括以下中的一 项或多项：所述第一唤醒信号的时域资源与所述N个RO存在对应关系；所述第一唤醒信号的频域资源与所述N个RO存在对应关系；所述第一唤醒信号的码域资源与所述N个RO存在对应关系；所述第一唤醒信号的空域资源与所述N个RO存在对应关系；所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，所述第一唤醒信号的序列与所述N个RO存在对应关系。
在上述设计中，第一唤醒信号与N个RO之间的对应关系，可称为直接对应关系。上述直接对应关系，可以为预定义的，或者，网络设备配置的。
在一种可能的设计中，第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
在上述设计中，第一唤醒信号与N个RO之间的对应关系，可称为唤醒信号与RO之间的间接对应关系。所述唤醒信号与RO间的间接对应关系，可以为预定义的，或者，网络设备配置的。
在一种可能的设计中，第一唤醒信号为K个唤醒信号中的一个，包括以下中的一项或多项：所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
在一种可能的设计中，所述K为大于或等于2的整数。
在一种可能的设计中，所述K个唤醒信号占用不同的频域资源。例如，K个唤醒信号可为频分复用的；或者，所述K个唤醒信号占用不同的时域资源。例如，K个唤醒信号可为时分复用的。或者，所述K个唤醒信号可占用不同的频域资源和时域资源。例如，K个唤醒信号为时分复用结合频分复用的。
在一种可能的设计中，所述第一唤醒信号用于指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否在寻呼时机中监听用于寻呼的下行控制信息。
第三方面，本申请实施例提供一种装置，可以实现上述第一方面、或第一方面任一种可能的实施方式中的方法。该装置包括用于执行上述方法的相应的单元或部件。该装置包括的单元可以通过软件和/或硬件方式实现。该装置例如可以为终端、或者为可支持终端实现上述方法的芯片、芯片系统、或处理器等。
第四方面，本申请实施例提供一种装置，可以实现上述第二方面、或第二方面任一种可能的实施方式中的方法。该装置包括用于执行上述方法的相应的单元或部件。该装置包括的单元可以通过软件和/或硬件方式实现。该装置例如可以为网络设备、或者为可支持终端实现上述方法的芯片、芯片系统、或处理器等。
第五方面，本申请实施例提供一种装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该装置实 现上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第六方面，本申请实施例提供一种装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该装置实现上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第七方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第八方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第九方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第十方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第十一方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第十二方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第十三方面，本申请实施例提供一种通信系统，包括：上述第三方面的装置，和/或，上述第四方面的装置；或者，包括：上述第五方面所述的装置，和/或，上述第六方面所述的装置。
附图说明
图1为本申请实施例提供的一种通信系统的示意图；
图2为本申请实施例提供的另一种通信系统的示意图；
图3为本申请实施例提供的一种根据SSB确定RO的示意图；
图4为本申请实施例提供的一种根据WUS监听PO的示意图；
图5为本申请实施例提供的一种通信方法的流程示意图；
图6为本申请实施例提供的一种根据WUS确定RO的示意图；
图7为本申请实施例提供的一种装置的示意图；
图8为本申请实施例提供的另一种装置的示意图；
图9为本申请实施例提供的又一种装置的示意图。
具体实施方式
本申请实施例提供的方法及装置可以应用于通信系统中。如图1示出了一种通信系统 结构示意图。该通信系统100中包括一个或多个网络设备(图中为简洁仅示出一个网络设备110)，以及与该一个或多个网络设备通信的一个或多个终端设备。图1中所示终端设备120与网络设备110通信。可以理解的是，网络设备和终端设备也可以被称为通信设备。
本发明实施例描述的技术可用于各种通信系统，例如第四代(4th generation，4G)通信系统，4.5G通信系统，5G通信系统，多种通信系统融合的系统，或者未来演进的通信系统(例如6G通信系统)。例如长期演进(long term evolution，LTE)系统，新空口(new radio,NR)系统，物联网系统、车辆网系统、无线保真(wireless-fidelity，WiFi)系统，以及第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的通信系统等，以及其他此类通信系统。
图1所示的通信系统中，网络设备110与终端设备120可以通过物理资源进行数据传输。本申请中的物理资源(也可简称为资源)可以包含时域资源，频域资源，码域资源，或，空域资源中的一种或多种。例如，该物理资源所包含的时域资源可以包含至少一个帧、至少一个子帧(sub-frame)、至少一个时隙(slot)、至少一个微时隙(mini-slot)、至少一个时间单元，或者至少一个时域符号等。例如，所述物理资源所包含的频域资源可以包含至少一个载波(carrier)、至少一个单元载波(component carrier，CC)、至少一个带宽部分(bandwidth part，BWP)、至少一个资源块组(resource block group，RBG)、至少一个物理资源块组(physical resource-block group，PRG)、至少一个资源块(resource block，RB)、或至少一个子载波(sub-carrier，SC)等。例如，所述物理资源所包含的空域资源可以包含至少一个波束、至少一个端口、至少一个天线端口、或者至少一个层/空间层等。例如，所述物理资源所包含的码域资源可以包含至少一个正交覆盖码(orthogonal cover code，OCC)、或者至少一个非正交多址(non-orthogonal multiple access，NOMA)码等。可以理解的是，上述物理资源可以是基带的物理资源，该基带的物理资源可以被基带芯片使用。上述物理资源也可以是空中接口的物理资源(也可称为空口资源)。上述物理资源还可以是中频或射频的物理资源。
网络设备110和终端设备120进行数据传输时，网络设备110可以通过控制信道，如物理下行控制信道(physical downlink control channel，PDCCH)向终端设备120发送控制信息，从而为终端设备120分配数据信道，如物理下行共享信道(physical downlink shared channel，PDSCH)或物理上行共享信道(physical uplink shared channel，PUSCH)的资源。比如该控制信息可以指示数据信道的资源对应的时域符号和/或资源块(resource block，RB)，网络设备110和终端设备120在该分配的资源上通过数据信道进行数据传输。其中，上述数据传输可包括下行数据传输和/或上行数据传输，下行数据(如PDSCH携带的数据)传输可以指网络设备110向终端设备120发送数据，上行数据(如PUSCH携带的数据)传输可以指终端设备120向网络设备110发送数据。数据可以是广义的数据，比如可以是用户数据，也可以是系统信息，广播信息或其他的信息等不作限定。
终端设备120之间也可以进行通信，一般可称为设备到设备(device to device，D2D)通信。终端设备120之间传输的数据可以被称为侧行链路(sidelink)数据、旁链路数据或边链路数据等。
图1示例性示出了一个网络设备和两个终端设备。可选地，该通信系统100可以包括多个网络设备并且一个网络设备的覆盖范围内可以包括其它数量的终端设备，不作限定。
图2示出了本申请实施例应用的另一通信系统200，包括：终端设备201、终端设备 202、终端设备203、终端设备204、终端设备205、终端设备206和网络设备207。
在该通信系统200中，终端设备201、终端设备202、终端设备203、终端设备204、终端设备205或终端设备206中的至少一个，可向网络设备207发送上行数据。网络设备207可向终端设备201、终端设备202、终端设备203、终端设备204、终端设备205或终端设备206中的至少一个，发送下行数据。
在该通信系统中，终端设备间也可以进行D2D通信。例如，终端设备205可向终端设备204和/或终端设备206发送sidelink数据，终端设备204和/或终端设备206可向终端设备205发送sidelink数据。
需要说明的是，网络设备207与终端设备201至终端设备206间可进行直接的通信。比如，在下行传输中，网络设备207可直接向终端设备201、终端设备202、终端设备203或终端设备205中的至少一个发送下行数据。在上行传输中，终端设备201、终端设备202、终端设备203或终端设备205中的至少一个可直接向网络设备207发送上行数据。或者，网络设备207与终端设备201至终端设备206可进行间接的通信。比如，网络设备207可将数据发送给终端设备205，而终端设备205可将所述数据转发给终端设备204和/或终端设备206。类似地，终端设备204和/或终端设备206可向终端设备205发送数据，终端设备205将所述数据转给发网络设备207等。
图2示例性示出一个网络设备和六个终端设备，可选地，该通信系统200可以包括多个网络设备并且一个网络设备的覆盖范围内可以包括其它数量的终端设备等，不作限定。
基于图1或图2所示的通信系统，本申请实施例提供一种应用场景：网络设备发送寻呼消息，以寻呼终端设备，所寻呼的终端设备可处于空闲(idle)态、休眠(sleeping)态或非激活(inactive)态等，不作限定。所述寻呼可以是接入网设备发起的，也可以是核心网设备发起的，本申请实施例不做限定。
其中，调度寻呼消息的下行控制信息(downlink control information，DCI)，即寻呼DCI，可在寻呼时机(paging occasion，PO)中发送，所述PO可由寻呼搜索空间和相应的控制资源集所确定。寻呼搜索空间用于指示可以承载下行控制信息的PDCCH监听时机，所述PDCCH监听时机可以为周期的或非周期的，不作限定。上述相应的控制资源集用于指示PDCCH监听时机中PDCCH的时频资源。一个PO可包括一个或多个PDCCH监听时机，上述多个PDCCH监听时机在时间上可为连续的或非连续的，不作限定。终端设备可根据自己的标识，确定PO位置，且在PO位置中接收、监听、检测或侦听(detect)上述寻呼DCI。终端设备可以根据寻呼DCI接收寻呼消息，以确定网络设备是否对自己发起了寻呼。所述寻呼消息中可包括寻呼列表，所述寻呼列表中包括被寻呼终端设备的标识。终端设备在接收到寻呼消息后，可判断寻呼列表中是否包括终端设备自己的标识。如果所述寻呼列表中包括终端设备自己的标识，则可确定网络设备对自己发起了寻呼，之后终端设备可发起随机接入过程，即终端设备在随机接入信道时机(random access channel，(RACH)occasion，RO)中发送随机接入前导。如果所述寻呼列表中不包括终端设备自己的标识，则终端设备可继续休眠，降低能耗。
在一种可能的实现方式中，网络设备可向终端设备发送一个或多个同步信号块(synchronization signal block，SSB)，其中一个SSB与RO存在对应关系。终端设备可对SSB进行测量，确定满足条件的SSB。所述满足条件的SSB可为接收信号强度最高的SSB，或者，接收信号强度大于或等于第一门限的SSB，或者，接收信号功率最高的SSB，或者， 接收信号功率大于或等于第二门限的SSB，或者，接收信号质量最高的SSB，或者，接收信号质量大于或等于第三门限的SSB等，不作限定。进一步，终端设备可根据SSB与RO的对应关系，确定满足条件的SSB所对应的RO。终端设备在满足条件的SSB所对应的RO中，发送随机接入前导。需要说明的是，一个SSB中可包括主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(physical broadcast channel，PBCH)。PSS和SSS可以让终端设备进行同步，PBCH可用于承载主信息块(master information block，MIB)等。
如图3所示为例，提供一种发送随机接入前导的示意图。在该示意图中，横轴代表时间，纵轴代表频率。在该示意图中，包括4个SSB，分别为SSB0、SSB1、SSB2和SSB3，4个SSB之间时分复用，即占用相同的频域资源和不同的时频资源。该示意图中，还包括8个RO，分别为RO0至RO7。上述8个RO可为时分复用结合频分复用的。具体的，上述8个RO可分为4组，RO0和RO1为第一组，RO2和RO3为第二组，RO4和RO5为第三组，RO6和RO7为第四组。不同的RO组之间可时分复用，即占用相同的频域资源和不同的时域资源。而RO组内包括的RO间频分复用，即占用相同的时域资源和不同的频域资源。以第一组为例，RO0和RO1彼此间可频分复用，两者占用相同的时域资源和不同的频域资源。更进一步，上述4个SSB与8个RO之间可存在对应关系。比如，SSB0可与RO0与RO1存在对应关系，或者，可描述为SSB0与上述第一组RO存在对应关系。SSB1可与RO2与RO3存在对应关系，或者，可描述为SSB1与上述第二组RO存在对应关系。SSB2可与RO4和RO5存在对应关系，或者，可描述为SSB2与上述第三组RO存在对应关系。SSB3可与RO6和RO7存在对应关系，或者，或描述为SSB3与上述第四组RO存在对应关系。
在一种可能的实现方式中，网络设备可发送上述4个SSB，4个SSB具有不同的波束方向。由于终端设备位于SSB1对应的波束方向上，因此终端设备接收SSB1的能量很可能要高于其它三个SSB。因此，终端设备可选择SSB1对应的RO进行随机接入，即终端设备选择SSB1对应的RO发送随机接入前导。通过上述描述可知，SSB1对应的RO为RO2和RO3，终端设备可在RO2和RO3中随机选择一个RO，发送随机接入前导。需要说明的是，在图3所示的示意图中，具体以网络设备为gNB，终端设备为UE，为例进行说明。
设定网络设备依次采用下行波束0至下行波束3，分别发送SSB0至SSB3。具体的，由于终端设备位于SSB1对应的下行波束1的方向上。在一种可能的方式中，终端设备可调整和/或优化接收波束，以使得终端设备接收SSB1的质量最佳。之后，终端设备可将上述调整和/或优化后的接收波束，作为发送波束，且利用上述发送波束发送随机接入前导。而网络设备可将上述SSB1对应的下行波束1作为接收波束，接收随机接入前导，从而提高随机接入前导的接收质量。
通过上例可以看出，网络设备是将发送SSB的下行波束，作为接收波束，接收终端设备发送的随机接入前导。由于SSB的波束往往是固定方向上的宽波束，存在灵活性差，波束增益小等缺点。因此，在网络设备采用SSB的波束接收随机接入前导时，也存在灵活性差，波束增益小等缺点。
基于上述，本申请实施例提供一种通信方法及装置，该方法的原理为：设置唤醒信号(wake up signal，WUS)与RO的对应关系；终端设备在接收到WUS之后，可根据WUS 与RO的对应关系，确定发送RO的随机接入前导。同时，根据波束互易性的原则，网络设备将采用发送WUS的下行波束，作为接收波束，接收随机接入前导。由于WUS的波束相对于SSB的波束更窄，更灵活，波束增益更大等，因此，在网络设备采用WUS的波束接收随机接入前导时，也存在灵活性高，波束增益大等优点。
为了便于理解，对本申请实施例所涉及的通信名词或术语进行解释说明，该通信名词或术语也作为本申请发明内容的一部分。
一、终端设备
终端设备可以简称为终端，是一种具有无线收发功能的设备，终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备，以及还可以包括用户设备(user equipment，UE)等。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来第五代(the 5th generation，5G)网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。终端设备有时也可以称为终端设备、用户设备(user equipment，UE)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、终端设备、无线通信设备、UE代理或UE装置等。终端设备也可以是固定的或者移动的。本申请实施例对此并不限定。
作为示例而非限定，在本申请中，终端设备可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请中，终端设备可以是物联网(internet of things，IoT)系统中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请中的终端设备可以是机器类型通信(machine type communication，MTC)中的终端设备。本申请的终端设备可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。因此，本申请实施例可以应用于车联网，例如车辆外联(vehicle to  everything，V2X)、车间通信长期演进技术(long term evolution vehicle，LTE-V)、车到车(vehicle to vehicle，V2V)等。
本申请实施例中，用于实现终端的功能的装置可以是终端；也可以是能够支持终端实现该功能的装置，例如芯片系统或处理器，该装置可以被设置在终端中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端，并以终端是UE为例，描述本申请实施例提供的技术方案。
二、网络设备
网络设备可以是接入网设备，接入网设备也可以称为无线接入网(radio access network，RAN)设备，是一种为终端设备提供无线通信功能的设备。接入网设备例如包括但不限于：5G中的下一代基站(generation nodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseband unit，BBU)、收发点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。接入网设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)，和/或分布单元(distributed unit,DU)，或者网络设备可以为中继站、接入点、车载设备、终端设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等。终端设备可以与不同技术的多个接入网设备进行通信，例如，终端设备可以与支持长期演进(long term evolution，LTE)的接入网设备通信，也可以与支持5G的接入网设备通信，还可以与支持LTE的接入网设备以及支持5G的接入网设备的双连接。本申请实施例并不限定。
本申请实施例中，用于实现网络设备的功能的装置可以是网络设备；也可以是能够支持网络设备实现该功能的装置，例如芯片系统或处理器，该装置可以被设置在网络设备中。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备，并以网络设备是基站为例，描述本申请实施例提供的技术方案。
三、唤醒信号(wake up signal，WUS)
所述WUS可以是具有唤醒功能的信号。比如，信道状态信息参考信号(channel state information-reference signal，CSI-RS)、同步信号、同步信号块(SSB)、解调参考信号(demodulation reference signal，DMRS)、或其它新设计的信号等，不作限定。
WUS用于指示终端设备在一个或多个寻呼时机(paging occasion，PO)中接收、监听、检测或侦听(detect)用于调度寻呼消息的DCI，即寻呼DCI。或者，可描述为，WUS用于指示在PO中监听用于寻呼的DCI，或者，可描述为，WUS用于指示是否在PO中监听用于寻呼的DCI等。终端设备接收到WUS，可以认为终端被WUS所唤醒。唤醒信号也可以称为叫醒信号，或者激活信号等。
比如，在新空口(new radio，NR)系统中，针对处于空闲(idle)态、休眠(sleeping)态或非激活(inactive)态的终端设备，网络设备可向其发送寻呼消息。调度所述寻呼消息的DCI，即寻呼DCI，可以在PO中发送，所述PO可由寻呼搜索空间和相应的控制资源集所确定。寻呼搜索空间用于指示承载下行控制信息的PDCCH监听时机，所述PDCCH监听时机可以为周期的或非周期的，不作限定。上述相应的控制资源集可用于指示PDCCH 监听时机中PDCCH的时频资源。一个PO可包括一个或多个PDCCH监听时机，上述多个PDCCH监听时机在时间上可为连续的或非连续的，不作限定。终端设备可以根据自己的标识(比如，UE ID，或UE的无线网络临时标识(radio network temporary identity，RNTI)等)确定PO的位置，在PO中接收、检测、监听或侦听上述寻呼DCI。终端可根据寻呼DCI接收寻呼消息等。需要说明的是，在以下实施例中，接收、检测、监听、侦听四者不作区分，且可相互替换。比如，接收可替换为检测、监听、侦听等。在一种具体的示例中，终端设备接收WUS或寻呼消息，可替换为终端设备检测WUS或寻呼消息，或者，替换为终端设备监听WUS或寻呼消息，或者，替换为终端设备侦听WUS或寻呼消息等。
其中，WUS可以由序列(例如m序列、Gold序列、或ZC(Zadoff-Chu)序列)生成。终端设备对上述序列信号的检测可以通过简单的互相关操作完成，因此检测简单、能耗开销小。
WUS通常可采用以下两种方式指示唤醒。
一种是通过WUS的有无来指示是否唤醒终端设备。比如，网络设备可通过发送WUS，指示唤醒终端设备。相应的，终端设备在接收到WUS时，则唤醒自己。或者，网络设备可通过不发送WUS，指示不唤醒终端设备。相应的，终端设备可在未接收到WUS时，则继续休眠等。例如，终端设备可先确定是否检测到WUS。如果检测到WUS，则在后续的一个或多个PO中接收、检测、监听或侦听用于调度寻呼消息的DCI，即寻呼DCI。终端可根据寻呼DCI的调度，接收寻呼消息。如果终端设备没有检测到WUS，则在后续的一个或多个PO中，终端设备可继续休眠、无需盲检、降低能耗。如图4所示为例，终端设备如果检测到WUS，则可在后续的N个PO中侦听寻呼DCI，并根据寻呼DCI的调度接收寻呼消息。否则，终端设备不需要在后续的N个PO中侦听寻呼DCI，继续休眠。
另一种是通过不同的WUS指示是否唤醒终端设备。比如，第一WUS可指示唤醒终端设备，第二WUS可指示不唤醒终端设备等。网络设备可通过发送第一WUS，指示唤醒终端设备。相应的，终端设备在接收到第一WUS时，则唤醒自己。网络设备可通过发送第二WUS，指示不唤醒终端设备。相应的，终端设备在接收到第二WUS时，则继续休眠。第一WUS与第二WUS之间可以通过序列进行区分，或传输的时频资源进行区分，或者其他的区分方式等。只要终端设备可以区分网络设备发送的第一WUS与第二WUS即可，本发明对此不做限制。
在一种示例中，WUS在频域上可占用1个或2个物理资源块(physical resource block，PRB)，在时域上可占用连续的M个子帧或时隙，所述M的值可为预定义的，或者是由网络设备为终端配置的(例如通过无线资源控制(radio resource control，RRC)信令配置的)。
四、随机接入信道时机(random access channel，(RACH)，occasion，RO)
RO包含时域资源和频域资源，终端设备可以在RO中发送随机接入前导，以发起随机接入。RO的配置可以是预定义的，也可以是网络设备为终端配置的，例如可通过RRC信令(例如系统消息或RRC专用消息)为终端设备配置RO。SSB与RO存在对应关系，所述对应关系可具体为：一个SSB对应于一个RO，或者，一个SSB对应于多个RO，或者，多个SSB对应于一个RO等。SSB与RO的对应关系可以是预定义的，也可以是由网络设备为终端配置的，例如可通过RRC信令(例如系统消息或RRC专用消息)为终端设备配置SSB与RO的对应关系。
在一种可能的实现方式中，网络设备可发送随机接入的配置信息，所述随机接入的配 置信息中可包括确定一个或多个RO的时频资源所需的信息，以及用于配置RO与SSB的对应关系的信息。终端设备可对SSB进行测量，选择满足条件的SSB，并在该SSB对应的RO中发送随机接入前导。所述满足条件的SSB可具体为接收信号能量最大的SSB，或者，接收信号能量大于或等于门限的SSB等，不作限定。可以理解的是，若上述满足条件的SSB对应多个RO，则可在上述多个RO中，随机选择一个RO发送随机接入前导等。
五、准共址(quasi co-location，QCL)
QCL可表示两个端口之间的关系，或者两个信号之间的关系。若来自两个端口的两个信号之间QCL，也即来自这两个端口的信号会具有某些相同的属性，这些属性包括以下一项或多项：平均增益、接收空域参数、多普勒频移、时延扩展等。在NR中，QCL分为QCL-A、QCL-B、QCL-C和QCL-D四类。其中，QCL-A表示端口或信号间的多普勒频移、多普勒扩展、平均时延和时延扩展相同，QCL-B表示端口或信号间的多普勒频移、多普勒扩展参数相同，QCL-C表示端口或信号间的多普勒频移、平均时延参数相同，QCL-D端口或信号间的表示接收空域参数相同。
其中，若两个信号是QCL的，可等价于：两个信号之间使用相同的端口传输，或者，等价于：两个信号的波束相关联。比如，若WUS与SSB是QCL的，可等价于：WUS与SSB使用相同的端口传输，或者，等价于：WUS的波束与SSB的波束关联。
六、波束
波束可以理解为空域滤波器(spatial domain filter)，或者为空间滤波器(spatial filter)或空间参数(spatial parameter)等。用于发送信号的波束可以理解为发送波束(transmission beam，Tx beam)，或者为空域发送滤波器(spatial domain transmission filter)，或者为空间发射参数(spatial transmission parameter)等。用于接收信号的波束可以理解为接收波束(reception beam，Rx beam)，或者为空域接收滤波器(spatial domain receive filter)，或者为空间接收参数(spatial RX parameter)等。
发送波束可以理解为信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以理解为从天线上接收到的无线信号在空间不同方向上的信号强度分布。
此外，波束可以是宽波束，窄波束，或者其他类型波束等。形成波束的技术可以是波束赋形技术或者其他技术，不作限定。比如，波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。
可选地，可将具有相同或者类似通信特征的多个波束视为一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道、控制信道、或参考信号中的一种或多种。形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。
波束可以和资源对应，例如，进行波束测量时，网络设备通过不同的资源来测量不同的波束，终端设备反馈测得的资源质量，网络设备就可以确定对应波束的质量。在波束测量中，网络设备的一个波束对应一个资源，因此可以以资源的索引来标识该资源对应的波束。或者，波束也可以和参考信号、同步信号、或同步信号块SSB对应，例如，网络设备在不同的波束方向上分别发送不同的SSB，例如发送索引不同的SSB，而终端设备则对各SSB进行测量和上报，终端设备对SSB测量结果可以反映不同的网络设备发送波束到达终端设备时的质量。
七、波束互易性
根据无线信号传播的信道互易性，若终端设备根据下行波束对接收波束进行了调整和 /或优化，然后将优化和/或调整后的接收波束作为发送波束，发送上行信号。而网络设备可以把下行波束作为接收波束，接收上行信号，从而提高上行信号接收的质量。
以SSB和随机接入前导为例，说明上述过程：网络设备利用下行波束发送SSB。终端设备对接收SSB的波束进行调整和优化，以使得接收SSB的质量最佳。之后，终端设备将调整和优化后的接收波束，作为发送波束，且利用该发送波束，发送随机接入前导。相应的，网络设备将上述发送SSB的下行波束作为接收波束，且利用接收波束接收随机接入前导，从而可提高终端设备接收随机接入前导的质量。
可以理解的是，用于发送下行信号的波束可称为下行波束，用于发送上行信号的波束可称为上行波束。站在终端设备侧的角度，发送波束可以是上行波束，接收波束可以为下行波束，或者可以描述为，接收波束为接收下行信号的波束。站在网络设备侧的角度，发送波束为下行波束，接收波束为上行波束，或者可以描述为，接收波束为接收上行信号的波束。如无特别说明，在本申请实施例的描述中，发送波束与发射波束，两者不作区分，且可相互替换。
八、时分复用结合频分复用
时分复用结合频分复用，还可称为时分复用+频分复用。所述时分复用结合频分复用，可指占用相同的时域资源，和/或，占用相同的频域资源。需要说明的是，时分复用结合频分复用的对象可以是信号、信息、时机、序列、前导等，不作限定。以图3为例，RO0至RO7，8个RO之间可以是时分复用结合频分复用的。图3中的8个RO可占用相同的时域资源，和/或，占用相同的频域资源。比如，RO0和RO1可占用相同的时域资源，和不同的频域资源。而RO0和RO2之间可占用相同的频域资源和不同的时域资源。比如，在一种示例中，上述8个RO可分为4组，RO0和RO1为第一组，RO2和RO3为第二组，RO4和RO5为第三组，RO6和RO7为第四组。不同的RO组之间可时分复用，即占用相同的频域资源和不同的时域资源。而RO组内包括的RO之间频分复用，即占用相同的时域资源和不同的频域资源。以第一组为例，RO0和RO1彼此间可频分复用，两者占用相同的时域资源和不同的频域资源。
如图5所示，提供一种通信方法，该方法的执行主体为终端设备和网络设备。终端设备可以为上述图1中的终端设备120，网络设备可以为上述图1中的网络设备110。或者，终端设备可以为上述图2中的终端设备201至终端设备206中的至少一个，网络设备可以为上述图2中的网络设备207。可以理解，该方法中的终端设备也可以是终端设备的部件(例如处理器、芯片、或芯片系统等)，该方法中的网络设备也可以是网络设备的部件(例如处理器、芯片、或芯片系统等)。该流程包括：
S501：网络设备发送第一WUS。相应的，终端设备接收第一WUS。
其中，第一WUS可为K个WUS中的一个，所述K为大于或等于1的整数。比如，在一种具体的实现方式中，K可为大于或等于2的整数。在本申请实施例中，终端设备可基于WUS的接收信号功率、接收信号强度、或接收信号质量等条件，确定第一WUS。
比如，在一种实现中，终端设备可基于接收信号功率，确定第一WUS。终端设备可测量K个WUS的接收信号功率，确定接收信号功率最大的WUS，作为上述第一WUS。此时，第一WUS为K个WUS中接收信号功率最大的WUS。或者，终端设备可在K个WUS的接收信号功率中，确定接收信号功率大于或等于第一门限的WUS作为上述第一WUS。若上述接收信号功率大于或等于第一门限的WUS数量为多个，则终端设备可在上述多个 WUS中，随机选择一个WUS或确定上述多个WUS中接收信号功率最大的WUS，作为上述第一WUS。若接收信号功率大于或等于第一门限的WUS数量为一个，则上述WUS即为上述第一WUS。此时，第一WUS为K个WUS中接收信号功率大于或等于第一门限的WUS中的一个。
在另一种实现中，终端设备可基于接收信号强度，确定第一WUS。终端设备可测量K个WUS的接收信号强度，确定接收信号强度最大的WUS，作为上述第一WUS。此时，第一WUS为K个WUS中接收信号强度最大的WUS。或者，终端设备可在K个WUS的接收信号强度中，确定接收信号强度大于或等于第二门限的WUS。若上述接收信号强度大于或等于第二门限的WUS数量为多个，则终端设备可在上述多个WUS中，随机选择一个WUS或确定上述多个WUS中接收信号强度最大的WUS，作为上述第一WUS。若接收信号强度大于或等于第二门限的WUS的数量为一个，则该WUS即为上述第一WUS。此时，第一WUS为K个WUS中接收信号强度大于或等于第二门限的WUS中的一个。
在又一种实现中，终端设备可基于接收信号质量，确定第一WUS。终端设备可测量K个WUS的接收信号质量，确定接收信号质量最大的WUS，作为上述第一WUS。此时，第一WUS为K个WUS中接收信号质量最大的WUS。或者，终端设备可在K个WUS的接收信号质量中，确定接收信号质量大于或等于第三门限的WUS。若上述接收信号质量大于或等于第三门限的WUS数量为多个，则终端设备可在上述多个WUS中，随机选择一个WUS或确定上述多个WUS中接收信号质量最大的WUS，作为上述第一WUS。若接收信号质量大于或等于第三门限的WUS数量为一个，则上述WUS即为上述第一WUS。此时，第一WUS为K个WUS中接收信号质量大于或等于第三门限的WUS中的一个。
需要说明的是，上述第一门限、第二门限、第三门限可为预定义的，或者，是由网络设备为终端设备配置的，不作限定。上述“大于或等于”可替换为“大于”等。
示例的，在上述S501中，K个WUS之间可采用频分复用的方式，即K个WUS之间占用相同的时域资源和不同的频域资源，不同WUS所占用的频域资源大小可相同或不同。K个WUS采用频分复用发送的好处在于：终端设备仅需检测一个较窄带宽内的WUS，有利用降低检测的复杂度。
或者，K个WUS之间可采用时分复用的方式，即K个WUS之间占用相同的频域资源和不同的时域资源，不同WUS所占用的时域资源大小可相同或不同。K个WUS采用时分复用发送的好处在于：终端设备可以在固定带宽内对不同的WUS进行接收和检测，便于终端设备根据WUS进行波束训练或信道测量。
或者，K个WUS之间可采用时分复用结合频分复用的方式，即K个WUS之间占用不同的时域资源和不同的频域资源，不同WUS所占用的时域资源大小可相同或不同，不同WUS所占用的频域资源大小可相同或不同。而K个WUS采用时分复用结合频分复用发送的好处在于：终端设备既可以选择一个WUS进行窄带接收，但需要在不同的时间内接收不同位置的最佳WUS，也可以宽带的方式对WUS进行接收和检测，以便进行宽带范围内波束训练或信道测量，从而使得终端设备可以根据自身的需要对WUS选择合适的接收方式，增加WUS检测的灵活性。
在一种可能的实现中，K个WUS中的一个WUS，在时域上可占用X个时间单元，时间单元的单位可以是符号或时隙等；在频域上可占用Y个频域单元，频域单元的单位可以是子载波或资源块(resource block，RB)等。X和Y为大于或等于1的整数。一个WUS 所占用的时间单元在时间上可以是连续的，也可以是非连续的。一个WUS所占用的频域单元在频域上可以是连续的，也可以是非连续的。
示例的，WUS所占用的时域资源可以与子载波间隔呈正比例关系。比如，若WUS的子载波间隔为15·2 u kHz,u＝0,1,2,…，则该WUS所占用的时域资源可以包括L·2 u个时间单元，L的取值为大于或等于1的整数。例如，当WUS的子载波间隔为15kHz时，则该WUS所占用的时域资源可以包括L个时间单元。而当WUS的子载波间隔为30kHz时，则该WUS所占用的时域资源可以包括2*L个时间单元。如此设计的优点在于，无论子载波间隔的取值为多少，WUS的绝对时间长度是相同的。如此，当终端设备的定时与网络设备存在差异时，都可以通过绝对时间长度的WUS进行同步定时，无需为不同子载波间隔的WUS设计不同的定时能力要求，使得终端设备可以不必根据WUS的不同子载波间隔调整无线信号的接收时间，简化了终端设备实现。
示例的，在上述S501中，K个WUS可由不同的序列生成。比如，K个WUS可为根据K个序列生成的。比如，网络设备可生成K个序列，所述序列可为m序列、Gold序列、或ZC序列等，上述K个序列的初始相位、初始值、或根序列互不相同。根据上述K个序列，可生成K个WUS。或者，K个WUS可由同一序列生成。比如，网络设备可生成一个序列，该序列可m序列、Gold序列、或ZC序列等。然后，对上述序列的K个部分进行不同的波束加权，得到K个WUS。或者，可描述为：上述K个WUS是根据同一WUS的K个部分所生成的。比如，网络设备可对一WUS的K个部分进行不同的预编码，得到K个WUS等。
可选的，在本申请实施例中，终端设备在S501中接收到第一WUS之后，还可包括：
S504：网络设备发送寻呼消息。相应的，终端设备接收寻呼消息。
网络设备对终端设备发起寻呼，终端设备在接收到寻呼消息，发现自己被寻呼后，可发起随机接入，执行后续S502和S503的步骤。
示例的，终端设备可根据以下方式，接收寻呼消息。比如，若网络设备采用WUS有无的方式，指示终端设备是否监听寻呼消息，则若终端设备在接收到第一WUS之后，可确定寻呼时机(paging occasion，PO)，且在确定的PO上，监听用于调度寻呼消息的DCI，即寻呼DCI。在一种示例中，由于一个PO包括一个或多个PDCCH监听时机，因此终端设备在PO上监听寻呼DCI，可以描述为终端设备在PO所包括的一个或多个PDCCH监听时机上检测寻呼DCI。终端设备可根据寻呼DCI的调度，接收承载寻呼消息的PDSCH。若终端设备监听到寻呼自己的寻呼消息，则确定自己被寻呼，并发起随机接入过程，即执行下述S502和S503的过程。若终端设备未监听到寻呼自己的寻呼消息，则继续休眠，降低能耗。此时，上述第一WUS可描述为，用于指示终端设备在PO中监听寻呼DCI。或者，网络设备可采用不同的WUS，指示终端设备在PO中是否监听寻呼DCI。比如，网络设备可用WUS1指示终端设备在PO中监听寻呼DCI，用WUS2指示终端设备在PO中不监听寻呼DCI。而终端设备在接收到第一WUS后，若第一WUS为WUS1，则终端设备可在PO中，监听寻呼DCI，并根据寻呼DCI的调度，接收寻呼消息。若终端设备发现寻呼消息所包括的寻呼列表中包括自己的标识，则确定自己被寻呼，并发起随机接入过程，即执行下述S502和S503的过程。若终端设备在PO中未监听到寻呼DCI，或者，根据寻呼DCI的调度所接收的寻呼消息中所包括的寻呼列表中没有自己的标识，则继续休眠。而若终端设备接收到的第一WUS为WUS2时，则终端设备可继续休眠。此时，第一WUS可描述 为指示终端设备在PO中是否监听寻呼DCI。
需要说明的是，上述WUS1与WUS2可通过序列进行区分，或者可通过传输的时频资源进行区分，或者，其它方式进行区分等，不作限定。只要终端设备可以区分出网络设备发送的WUS1与WUS2两者，均在本申请实施例的保护范围内。
S502：终端设备确定第一RO，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一WUS与N个RO存在对应关系。
在一种可能的实现方式中，终端设备可根据第一WUS确定第一RO，其中第一WUS与N个RO存在对应关系。或者，终端设备可根据第一WUS确定N个RO中的一个RO为第一RO，其中，第一WUS与N个RO存在对应关系。示例的，当上述N为大于1的整数时，第一WUS与多个RO存在对应关系，终端设备可上述多个RO中，随机选择一个RO，作为第一RO。当N等于1时，第一WUS与一个RO存在对应关系，终端设备可确定该RO为第一RO。可以理解的是，第一WUS与N个RO之间的对应关系，可以为预定义的，或者，是由网络设备为终端设备配置的，比如，网络设备可通过无线资源控制(radio resource control，RRC)信令为终端设备配置等。
可选的，WUS所占用的频域资源可与和WUS存在对应关系的RO所占用的频域资源相同。比如，第一WUS与N个RO存在对应关系，则第一WUS所占用的频域资源可与N个RO所占用的频域资源相同。
示例的，第一WUS与N个RO之间的对应关系，可为直接的对应关系，或者间接的对应关系。比如，第一WUS与N个RO之间的直接对应关系可为：第一WUS的时域资源与N个RO存在对应关系；或者，第一WUS的频域资源与N个RO存在对应关系；或者，第一WUS的码域资源与N个RO存在对应关系；或者，第一WUS的空域资源与N个RO存在对应关系；或者，第一WUS的标识与N个RO存在对应关系；或者，第一WUS的序列与N个RO存在对应关系。而第一WUS与N个RO之间的间接对应关系可为：第一WUS与第一SSB准共址，第一SSB与N个RO存在对应关系；或者，第一WUS与第一CSI-RS准共址，第一CSI-RS与N个RO存在对应关系；或者，第一WUS与第一DMRS准共址，第一DMRS与N个RO存在对应关系。
在一种可能的实现方式中，本申请实施例中的WUS可以是具有指示终端设备是否检测寻呼DCI的功能的参考信号，如CSI-RS，也就是说，本申请实施例中的WUS可具体为CSI-RS，且该CSI-RS具有指示终端设备是否检测寻呼DCI的功能。或者，本申请实施例中的WUS可以是具有指示终端设备检测寻呼DCI的功能的参考信号，例如CSI-RS，也就是说，本申请实施例中的WUS可具体为CSI-RS，且该CSI-RS具有指示终端设备检测寻呼DCI的功能。此时，本申请实施例中的WUS的配置信息，比如时频资源、生成序列等，可以使用CSI-RS的配置方式，WUS的发送和检测方法也可以使用CSI-RS的发送和检测方法，从而减少网络设备和终端设备的实现复杂度。
需要说明的是，针对上述第一WUS与N个RO之间的对应关系，无论是直接对应关系，还是间接对应关系，可以是预定义的，或者是由网络设备为终端设备配置的，不作限定。
可选的，若由网络设备配置第一WUS与N个RO之间的对应关系。上述图5所示的流程中，还可包括：S500：网络设备向终端设备发送配置信息，该配置信息用于配置WUS与RO之间的对应关系。所述配置信息可通过广播、组播或单播等方式发送，不作限定。 具体的配置方式可包括以下两种方案：
第一种方案：可称为WUS与RO的直接对应方案
方案1.1：网络设备可向终端设备发送配置信息，所述配置信息可配置一个RO所对应WUS的数量等。终端设备根据上述配置信息，可确定RO与WUS之间的对应关系。比如，在一种实现方式中，终端设备可首先获取WUS列表和RO列表。根据上述WUS列表和RO列表，以及所述配置信息所配置的一个RO所对应WUS的数量，可确定WUS与RO之间的对应关系。
比如，参见下述表1所示，网络设备为终端设备配置的RO列表中包括4个RO，索引依次为RO0至RO3，WUS列表中包括8个WUS，索引依次为WUS0至WUS7，同时网络设备还通过上述配置信息配置每个RO对应WUS的数量为2，即每个RO对应2个WUS。则终端设备根据上述配置信息，可确定RO与WUS之间的对应关系如下：RO0对应{WUS0、WUS1}，RO1对应{WUS2、WUS3}，RO2对应{WUS4、WUS5}，RO3对应{WUS6、WUS7}。
表1
RO0 WUS0、WUS1
RO1 WUS2、WUS3
RO2 WUS4、WUS5
RO3 WUS6、WUS7
方案1.2：网络设备向终端设备发送配置信息，该配置信息可用于配置每个RO对应的WUS。终端设备根据所述配置信息，确定RO与WUS的对应关系。比如，仍沿用上述举例，包括4个RO，依次为RO0至RO3。则网络设备指示上述每个RO所对应WUS。仍可参见表1所示，网络设备指示与RO0对应的WUS为WUS0和WUS1、指示与RO1对应的WUS为WUS2和WUS3。针对RO2和RO3，网络设备指示方式与上述类似，不再赘述。需要说明的是，若一个RO对应多个WUS，则网络设备可指示该RO所对应的多个WUS，或者，网络设备可指示该RO所对应的WUS集合。
方案1.3：网络设备向终端设发送配置信息，该配置信息用于配置每个WUS所对应的RO。终端设备根据所述配置信息，可确定WUS与RO的对应关系。比如，如表2所示为例，包括8个WUS，依次为WUS0至WUS7，则网络设备指示上述8个WUS中每个WUS所对应的RO。具体的，网络设备指示与WUS0对应的RO为RO0、指示与WUS1对应的RO为RO1、指示与WUS2对应的RO为RO2。其余WUS3至WUS7的指示过程，与上述相似，不再赘述。
表2
WUS0 RO0
WUS1 RO1
WUS2 RO2
WUS3 RO3
WUS4 RO4
WUS5 RO5
WUS6 RO6
WUS7 RO7
需要说明的是，在上述方案1.3中，针对一个WUS对应多个RO的情况，网络设备可指示该WUS所对应的多个RO，或者，网络设备可指示该WUS所对应的RO集合等，不作限定。
针对上述第一种方案，并不限定WUS与其它信号之间的准共址关系，所述其它信号可为SSB、CSI-RS或DMRS等。比如，在一种具体的实现方式中，WUS可与SSB、CSI-RS、DMRS均不准共址，WUS本身具有自己特定的波束方向。这一方式的优点在于，WUS的波束较为灵活，网络设备可以根据自己的需求，设置WUS的波束宽窄和方向，不受限于SSB、CSI-RS或DMRS的波束方式。或者，在另一种具体的实现方式中，WUS可以与SSB、CSI-RS或DMRS中的至少一个准共址。这一方式的优点在于，终端设备可根据SSB、CSI-RS或DMRS中至少一个的测量结果，优化和/或调整WUS的接收波束，降低WUS的漏检或错检概率。
第二种方案：可称为WUS与RO的间接对应方案
在该方案中，WUS与RO之间的对应关系可包括：WUS与其它信号的对应关系，以及，其它信号与RO的对应关系。所述其它信号可包括SSB、CSI-RS或DMRS等信号中的一种或多种。可选的，WUS与其它信号的对应关系可以为准共址的关系。在间接对应方案中，WUS与RO之间的对应关系，是通过“WUS—其它信号—RO”的方式建立的。以SSB为例，WUS与SSB之间可以存在准共址关系，而SSB与RO之间可以存在对应关系，从而WUS与RO之间也存在对应关系。
第二方案的优点在于，可以复用其它信号与RO的对应关系，从而能够获得更好的兼容性。上述WUS与其它信号存在对应关系的方式可具体为：WUS与其它信号间的准共址关系。所述WUS与其它信号准共址的关系可由网络设备指示或配置给终端设备，或者所述WUS与其它信号准共址的关系是预定义的，不作限定。
可选的，上述S500中的配置信息，除用于配置WUS与RO的对应关系，还可用于配置WUS和/或RO。或者，网络设备可额外发送WUS的配置信息，用于配置WUS。和/或，网络设备额外发送RO的配置信息，用于配置RO，不作限定。或者，所述WUS和/或RO为预定义的。
针对上述WUS的配置信息，网络设备可以通过广播、单播或组播等方式发送。所述WUS的配置信息可指示WUS所占用的时域资源、频域资源、码域资源或空域资源中的至少一个。可选的，网络设备可单独配置每个WUS，或者，网络设备可同时配置多个WUS，多个WUS之间可以是时分、频分或码分的，不作限定。或者，WUS所占用的时域资源、频域资源或码域资源为预定义的。
针对上述RO的配置信息，网络设备可以通过广播、单播或组播等方式发送。所述RO的配置信息可配置RO所对应的时域资源、频域资源或随机接入前导集合中的至少一个。比如，在一种具体实现方式中，网络设备可配置物理随机接入信道(physical random access channel，PRACH)的配置索引。终端设备可根据PRACH的配置索引，确定与PRACH的配置索引所对应的RO的配置信息。终端设备根据上述所确定的RO配置信息，即可确定RO对应的时域资源、频域资源或随机接入前导集合中的至少一个。
可选的，网络设备还可额外指示RO在频域上的频分复用的数量，在频域上首个RO的频域位置，或者，可用的随机接入前导的集合中的一个或多个等。需要说明的是，在一个周期内，RO的索引可以是按照先频域、后时域的顺序进行排序的。
S503：终端设备在第一RO中发送随机接入前导。相应的，网络设备在第一RO中接收随机接入前导。需要说明的是，在本申请实施例中，随机接入前导还可称为随机接入请求、前导、由物理随机接入信道PRACH承载的前导、RACH前导、消息1(message 1，Msg1)、或消息A(message A，MsgA)等。
在一种可能的实现方式中，根据波束互易原则，在上述S501中，网络设备可采用下行波束发送上述第一WUS。而终端设备可对接收波束进行调整和/或优化，以使得终端设备接收上述第一WUS的信号质量较佳。之后，终端设备可将调整和/或优化的接收波束，作为发送波束。在上述S503中，终端设备可利用上述发送波束，发送随机接入前导。相应的，网络设备可将发送第一WUS的下行波束作为接收波束，接收所述随机接入前导，从而利用波束的互易性，提高随机接入前导的接收质量。同时，由于WUS可以使用较窄的波束发送，灵活性较高，能够获得更大的波束增益。因此，网络设备利用WUS对应的波束，接收随机接入前导，可提高接收随机接入前导的灵活性和波束增益。
如图6所示为例，提供一种发送随机接入前导的示意图。在该示意图中，横轴代表时间，纵轴代表频率。在该示意图中，包括8个WUS，依次为WUS0至WUS7。上述8个WUS可为时分复用结合频分复用的。具体的，WUS0至WUS3之间频率复用，WUS4至WUS7之间频分复用，“WUS0至WUS3”与“WUS4与WUS7”之间时分复用。在该示意图中，还包括16个RO，依次为RO0至RO15。上述16个RO可为时分复用结合频分复用的。具体的，RO0至RO3之间频分复用，RO4至RO7之间频分复用，RO8至RO11之间频分复用，RO12至RO15之间频分复用。且“RO0至RO3”、“RO4至RO7”、“RO8至RO11”以及“RO12至RO15”之间时分复用。其中，上述WUS与RO之间还可存在对应关系，具体的，WUS0对应于RO0和RO1，WUS1对应于RO2和RO3，WUS2对应于RO4和RO5，WUS3对应于RO6和RO7，WUS4对应于RO8和RO9，WUS5对应于RO10和RO11，WUS6对应于RO12和RO13，WUS7对应于RO14和RO15。
在一种可能的实现方式中，网络设备可发送8个WUS，索引依次为WUS0至WUS7，上述8个WUS具有不同的波束方向。通过上述图6可以看出，由于终端设备位于WUS3的波束方向上，因此很可能接收WUS3的接收信号强度最大。终端设备可在WUS3所对应的RO6和RO7中，随机选择一个RO发送随机接入前导。需要说明的是，在图6所示的示意图中，具体以网络设备为gNB，终端设备为UE，为例进行说明。
相应于上述方法实施例给出的方法，本申请实施例还提供了相应的装置，包括用于执行上述实施例相应的模块。所述模块可以是软件，也可以是硬件，或者是软件和硬件结合。
图7给出了一种装置的结构示意图。所述装置700可以是网络设备，也可以是终端设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
所述装置700可以包括一个或多个处理器701，所述处理器701也可以称为处理单元，可以实现一定的控制功能。所述处理器701可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端、终端芯片，DU或CU等)进行控制，执行软件程序，处理软件程序的数据。
在一种可选的设计中，处理器701也可以存有指令和/或数据703，所述指令和/或数据 703可以被所述处理器运行，使得所述装置700执行上述方法实施例中描述的方法。
在另一种可选的设计中，处理器701中可以包括用于实现接收和发送功能的收发单元。例如该收发单元可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在又一种可能的设计中，装置700可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。
可选的，所述装置700中可以包括一个或多个存储器702，其上可以存有指令704，所述指令可在所述处理器上被运行，使得所述装置700执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。可选的，处理器中也可以存储指令和/或数据。所述处理器和存储器可以单独设置，也可以集成在一起。例如，上述方法实施例中所描述的对应关系可以存储在存储器中，或者存储在处理器中。
可选的，所述装置700还可以包括收发器705和/或天线706。所述处理器701可以称为处理单元，对所述装置700进行控制。所述收发器705可以称为收发单元、收发机、收发电路、收发装置或收发模块等，用于实现收发功能。
可选的，本申请实施例中的装置700可以用于执行本申请实施例中图5描述的方法。
本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的装置可以是网络设备或者终端设备,但本申请中描述的装置的范围并不限于此,而且装置的结构可以不受图7的限制。装置可以是独立的设备或者可以是较大设备的一部分。例如所述装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据和/或指令的存储部件；
(3)ASIC，例如调制解调器(MSM)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备、机器设备、家居设备、医疗设备、工业设备等等；
(6)其他等等。
图8提供了一种终端设备的结构示意图。该终端设备可适用于图1或图2所示出的场景中。为了便于说明，图8仅示出了终端设备的主要部件。如图8所示，终端设备800包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据。存 储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解析并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行处理后得到射频信号并将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，该射频信号被进一步转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
为了便于说明，图8仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图8中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在一个例子中，可以将具有收发功能的天线和控制电路视为终端设备800的收发单元811，将具有处理功能的处理器视为终端设备800的处理单元812。如图8所示，终端设备800包括收发单元811和处理单元812。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元811中用于实现接收功能的器件视为接收单元，将收发单元811中用于实现发送功能的器件视为发送单元，即收发单元811包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。可选的，上述接收单元和发送单元可以是集成在一起的一个单元，也可以是各自独立的多个单元。上述接收单元和发送单元可以在一个地理位置，也可以分散在多个地理位置。
如图9所示，本申请又一实施例提供了一种装置900。该装置可以是终端,也可以是终端的部件(例如，集成电路，芯片等等)。或者，该装置可以是网络设备，也可以是网络设备的部件(例如，集成电路，芯片等等)。该装置也可以是其他通信模块,用于实现本申请方法实施例中的方法。该装置900可以包括:处理模块902(或称为处理单元)。可选的，还可以包括收发模块901(或称为收发单元)和存储模块903(或称为存储单元)。
在一种可能的设计中，如图9中的一个或者多个模块可能由一个或者多个处理器来实现，或者由一个或者多个处理器和存储器来实现；或者由一个或多个处理器和收发器实现；或者由一个或者多个处理器、存储器和收发器实现，本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置，也可以集成。
所述装置具备实现本申请实施例描述的终端的功能，比如，所述装置包括终端执行本申请实施例描述的终端涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现，还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。或者，所述装置具备实现本申请实施例描述的网络设备的功能，比如，所述装置包括所述网络设备执行本申请实施例描述的网络设备涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现，还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。
可选的，本申请实施例中的装置900中各个模块可以用于执行本申请实施例中图5描述的方法。
在一种可能的设计中，一种装置900可包括：处理模块902和收发模块901。
比如，装置900可用于执行上述图5中终端设备的相关操作。收发模块901，用于接收第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；处理模块902，用于确定第一随机接入信道时机RO，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系；收发模块901，还用于在所述第一RO中，发送随机接入前导。
可选的，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：所述第一唤醒信号的时域资源与所述N个RO存在对应关系；所述第一唤醒信号的频域资源与所述N个RO存在对应关系；所述第一唤醒信号的码域资源与所述N个RO存在对应关系；所述第一唤醒信号的空域资源与所述N个RO存在对应关系；所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，所述第一唤醒信号的序列与所述N个RO存在对应关系。
可选的，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
可选的，所述第一唤醒信号为K个唤醒信号中一个，包括以下中的一项或多项：
所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
可选的，所述K为大于或等于1的整数，具体为：所述K为大于或等于2的整数。
可选的，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
可选的，所述第一唤醒信号用于指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否在寻呼时机中监听用于寻呼的下行控制信息。
再如，装置900可用于执行上述图5所示流程中网络设备侧的相关操作。处理模块902，用于生成第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；收发模块901，用于发送所述第一唤醒信号；收发模块901，还用于在第一随机接入信道时机RO上，接收随机接入前导，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系。
可选的，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：所述第一唤醒信号的时域资源与所述N个RO存在对应关系；所述第一唤醒信号的频域资源与所述N个RO存在对应关系；所述第一唤醒信号的码域资源与所述N个RO存在对应关系；所述第一唤醒信号的空域资源与所述N个RO存在对应关系；所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，所述第一唤醒信号的序列与所述N个RO存在对应关系。
可选的，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
可选的，所述第一唤醒信号为K个唤醒信号中的一个，包括以下中的一项或多项：所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
可选的，所述K为大于或等于1的整数，包括：所述K为大于或等于2的整数。
可选的，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
可选的，所述第一唤醒信号用于指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否在寻呼时机中监听用于寻呼的下行控制信息。
可以理解的是，本申请实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，比如其当前所基于的方案，而独立实施，解决相应的技术问题，达到相应的效果，也可以在某些场景下，依据需求与其他特征进行结合。相应的，本申请实施例中给出的装置也可以相应的实现这些特征或功能，在此不予赘述。
本领域技术人员还可以理解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员对于相应的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
可以理解，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal  processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
本申请所描述的方案可通过各种方式来实现。例如，这些技术可以用硬件、软件或者硬件结合的方式来实现。对于硬件实现，用于在通信装置(例如，基站，终端、网络实体、或芯片)处执行这些技术的处理单元，可以实现在一个或多个通用处理器、DSP、数字信号处理器件、ASIC、可编程逻辑器件、FPGA、或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合中。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请还提供了一种计算机可读介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
可以理解，说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各个实施例未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。可以理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
可以理解，在本申请中，“当…时”、“若”以及“如果”均指在某种客观情况下装置会做出相应的处理，并非是限定时间，且也不要求装置实现时一定要有判断的动作，也不意味着存在其它限定。
本申请中的“同时”可以理解为在相同的时间点，也可以理解为在一段时间段内，还可以理解为在同一个周期内。
本领域技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。本申请中的编号(也可被称为索引)的具体取值、数量的具体取值、以及位置仅作为示意的目的，并不是唯一的表示形式，也并不用来限制本申请实施例的范围。本申请中涉及的第一个、第二个等各种数字编号也仅为描述方便进行的区分，并不用来限制本申请实施例的范围。
本申请中对于使用单数表示的元素旨在用于表示“一个或多个”，而并非表示“一个且仅一个”，除非有特别说明。本申请中，在没有特别说明的情况下，“至少一个”旨在用于表示“一个或者多个”，“多个”旨在用于表示“两个或两个以上”。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A可以是单数或者复数，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。
本文中术语“……中的至少一个”或“……中的至少一种”，表示所列出的各项的全部或任意组合，例如，“A、B和C中的至少一种”，可以表示：单独存在A，单独存在B，单独存在C，同时存在A和B，同时存在B和C，同时存在A、B和C这六种情况，其中A可以是单数或者复数，B可以是单数或者复数，C可以是单数或者复数。
可以理解，在本申请各实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本申请中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本申请并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本申请中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本申请中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以理解，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本领域普通技术人员可以理解，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
可以理解，本申请中描述的系统、装置和方法也可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请中各个实施例之间相同或相似的部分可以互相参考。在本申请中各个实施例、以及各实施例中的各个实施方式/实施方法/实现方法中，如果没有特殊说明以及逻辑冲突，不同的实施例之间、以及各实施例中的各个实施方式/实施方法/实现方法之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例、以及各实施例中的各个实施方式/实施方法/实现方法中的技术特征根据其内在的逻辑关系可以组合形成新的实施例、实施方式、实施方法、或实现方法。以上所述的本申请实施方式并不构成对本申请保护范围的限定。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。

Claims (33)

  1. 一种通信方法，其特征在于，包括：
    接收第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；
    确定第一随机接入信道时机RO，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系；
    在所述第一RO中，发送随机接入前导。
  2. 如权利要求1所述的方法，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号的时域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的频域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的码域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的空域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，
    所述第一唤醒信号的序列与所述N个RO存在对应关系。
  3. 如权利要求1所述的方法，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；
    所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，
    所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
  4. 如权利要求1至3中任一项所述的方法，其特征在于，所述第一唤醒信号为K个唤醒信号中一个，包括以下中的一项或多项：
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
  5. 如权利要求1至4中任一项所述的方法，其特征在于，所述K为大于或等于1的整数，具体为：所述K为大于或等于2的整数。
  6. 如权利要求5所述的方法，其特征在于，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
  7. 如权利要求1至6中任一项所述的方法，其特征在于，所述第一唤醒信号用于指 示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否在寻呼时机中监听用于寻呼的下行控制信息。
  8. 一种通信方法，其特征在于，包括：
    发送第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；
    在第一随机接入信道时机RO中，接收随机接入前导，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系。
  9. 如权利要求8所述的方法，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号的时域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的频域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的码域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的空域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，
    所述第一唤醒信号的序列与所述N个RO存在对应关系。
  10. 如权利要求8所述的方法，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；
    所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，
    所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
  11. 如权利要求8至10中任一项所述的方法，其特征在于，所述第一唤醒信号为K个唤醒信号中的一个，包括以下中的一项或多项：
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
  12. 如权利要求8至11中任一项所述的方法，其特征在于，所述K为大于或等于1的整数，包括：所述K为大于或等于2的整数。
  13. 如权利要求12所述的方法，其特征在于，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
  14. 如权利要求8至13中任一项所述的方法，其特征在于，所述第一唤醒信号用于指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否 在寻呼时机中监听用于寻呼的下行控制信息。
  15. 一种通信装置，其特征在于，包括处理模块和收发模块；
    所述收发模块，用于接收第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；
    所述处理模块，用于确定第一随机接入信道时机RO，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系；
    所述收发模块，还用于在所述第一RO中，发送随机接入前导。
  16. 如权利要求15所述的装置，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号的时域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的频域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的码域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的空域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，
    所述第一唤醒信号的序列与所述N个RO存在对应关系。
  17. 如权利要求15所述的装置，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；
    所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，
    所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
  18. 如权利要求15至17中任一项所述的装置，其特征在于，所述第一唤醒信号为K个唤醒信号中一个，包括以下中的一项或多项：
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
  19. 如权利要求15至18中任一项所述的装置，其特征在于，所述K为大于或等于1的整数，具体为：所述K为大于或等于2的整数。
  20. 如权利要求19所述的装置，其特征在于，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
  21. 如权利要求15至20中任一项所述的装置，其特征在于，所述第一唤醒信号用于指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否 在寻呼时机中监听用于寻呼的下行控制信息。
  22. 一种通信装置，其特征在于，包括收发模块和处理模块；
    所述处理模块，用于生成第一唤醒信号，所述第一唤醒信号为K个唤醒信号中的一个，所述K为大于或等于1的整数；
    所述收发模块，用于发送所述第一唤醒信号；
    所述收发模块，还用于在第一随机接入信道时机RO中，接收随机接入前导，所述第一RO为N个RO中的一个，所述N为大于或等于1的整数，所述第一唤醒信号与所述N个RO存在对应关系。
  23. 如权利要求22所述的装置，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号的时域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的频域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的码域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的空域资源与所述N个RO存在对应关系；
    所述第一唤醒信号的标识与所述N个RO存在对应关系；或者，
    所述第一唤醒信号的序列与所述N个RO存在对应关系。
  24. 如权利要求22所述的装置，其特征在于，所述第一唤醒信号与所述N个RO存在对应关系，包括以下中的一项或多项：
    所述第一唤醒信号与第一同步信号块SSB准共址，所述第一SSB与所述N个RO存在对应关系；
    所述第一唤醒信号与第一信道状态信息参考信号CSI-RS准共址，所述第一CSI-RS与所述N个RO存在对应关系；或者，
    所述第一唤醒信号与第一解调参考信号DMRS准共址，所述第一DMRS与所述N个RO存在对应关系。
  25. 如权利要求22至24中任一项所述的装置，其特征在于，所述第一唤醒信号为K个唤醒信号中的一个，包括以下中的一项或多项：
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号功率大于或等于第一门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度最大的唤醒信号；
    所述第一唤醒信号为所述K个唤醒信号中接收信号强度大于或等于第二门限的唤醒信号中的一个；
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量最大的唤醒信号；或者，
    所述第一唤醒信号为所述K个唤醒信号中接收信号质量大于或等于第三门限的唤醒信号中的一个。
  26. 如权利要求22至25中任一项所述的装置，其特征在于，所述K为大于或等于1的整数，包括：所述K为大于或等于2的整数。
  27. 如权利要求26所述的装置，其特征在于，所述K个唤醒信号占用不同的频域资源，或者，所述K个唤醒信号占用不同的时域资源。
  28. 如权利要求22至27中任一项所述的装置，其特征在于，所述第一唤醒信号用于 指示在寻呼时机中监听用于寻呼的下行控制信息，或者，所述第一唤醒信号用于指示是否在寻呼时机中监听用于寻呼的下行控制信息。
  29. 一种通信装置，其特征在于，所述装置用于执行权利要求1至7中任一项所述的方法，或者，用于执行权利要求8至14中任一项所述的方法。
  30. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1至7中任一项所述的方法，或者，执行权利要求8至14中任一项所述的方法。
  31. 一种计算机可读存储介质，其上存储有计算机程序或指令，其特征在于，所述计算机程序或指令被执行时使得计算机执行如权利要求1至7中任一项所述的方法或者如权利要求8至14中任一项所述的方法。
  32. 一种芯片，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得装置执行如权利要求1至7中任一项所述的方法或者如权利要求8至14中任一项所述的方法。
  33. 一种通信系统，其特征在于，所述系统包括如权利要求15至21中任一项所述的装置，和/或，如权利要求22至28中任一项所述的装置。
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