WO2023207633A1 - 通信方法与装置 - Google Patents

通信方法与装置 Download PDF

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Publication number
WO2023207633A1
WO2023207633A1 PCT/CN2023/088370 CN2023088370W WO2023207633A1 WO 2023207633 A1 WO2023207633 A1 WO 2023207633A1 CN 2023088370 W CN2023088370 W CN 2023088370W WO 2023207633 A1 WO2023207633 A1 WO 2023207633A1
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WO
WIPO (PCT)
Prior art keywords
period
frequency unit
public information
information
terminal device
Prior art date
Application number
PCT/CN2023/088370
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English (en)
French (fr)
Inventor
李锐杰
官磊
Original Assignee
华为技术有限公司
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Publication of WO2023207633A1 publication Critical patent/WO2023207633A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and more specifically, to communication methods and communication devices.
  • One of the main technical means to reduce the energy consumption of network equipment is to reduce the transmission of signals by network equipment. For example, if the network device has no data to transmit, the network device can no longer transmit any signals to reduce the energy consumption of the network device.
  • the network device Even if there is no data to be transmitted, the network device always needs to periodically send some public information on each carrier with a 20ms cycle.
  • This public information can be used by the terminal device to identify the network device, thereby allowing the terminal device to access the network.
  • SSB synchronization signal block
  • SIB1 system information block 1
  • This application provides a communication method and device that can reduce energy consumption overhead caused by transmitting public information.
  • the first aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited in this application.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method may include: receiving first information from a network device in a first frequency unit, the first information being used to indicate a first period of public information transmission; detecting the public information in a second frequency unit according to the first period.
  • the public information is used for initial access to the network device.
  • the terminal device detects public information according to the period configured by the network device. Compared with the situation where the public information is always detected according to a fixed period, the flexibility of the terminal device in detecting public information can be improved, thereby improving the efficiency of the terminal device accessing the network device. .
  • network equipment can configure the period for transmitting public information according to needs, which improves the flexibility of network equipment in sending public information.
  • the duration of the first period is longer than 20 ms.
  • the frequency of terminal equipment detecting public information can be reduced, thereby saving power consumption of the terminal equipment.
  • the frequency with which network devices send public information can also be reduced, thereby saving power consumption of network devices.
  • the first information is also used to indicate the first period pair Detecting the public information at the second frequency unit according to the first period includes: within the time window corresponding to the first period, detecting the common information at the second frequency unit according to the first period.
  • the first information is also used to indicate the identity of the second frequency unit; detecting the common information in the second frequency unit according to the first period includes: The common information is detected in the second frequency unit according to the identification of the second frequency unit and the first period.
  • the first information is also used to indicate the second cycle of the public information transmission.
  • the above solution can further improve the flexibility of public information transmission by configuring multiple public information transmission periods.
  • the method further includes: if the public information is not detected according to the first period, detecting the second frequency unit according to the second period. Public information.
  • the terminal device can adjust the detection cycle of the public signal according to the needs, which can improve the efficiency of the terminal device in detecting public information and improve the initial access of the terminal device to the network device. flexibility to enhance user experience.
  • the second aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited in this application.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method may include: sending first information to the terminal device in a first frequency unit, where the first information is used to indicate a first period of public information transmission; and sending the public information in a second frequency unit according to the first period.
  • the public information is used for the terminal device to initially access the network device.
  • the duration of the first period is longer than 20 ms.
  • the first information is also used to indicate at least one of the following: a time window corresponding to the first period and an identification of the second frequency unit.
  • the first information is also used to indicate the second period of public information transmission.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited in this application.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method may include: determining a third period in at least two periods, both of which are transmission periods for public information; detecting the public information in a third frequency unit according to the third period.
  • the public information is used for initial access to the network device.
  • the terminal device can determine the period for detecting the public signal based on the multiple transmission cycles, which can improve the efficiency of the terminal device in detecting public information and improve the initial access of the terminal device.
  • the flexibility of network equipment improves user experience.
  • each of the at least two periods is A transmission period of common information on the third frequency unit; or, the at least two periods include a transmission period of common information on the third frequency unit and a transmission period of common information on the fourth frequency unit.
  • the duration of the third period is longer than 20 ms.
  • the frequency of terminal equipment detecting public information can be reduced, thereby saving power consumption of the terminal equipment.
  • the frequency with which network devices send public information can also be reduced, thereby saving power consumption of network devices.
  • detecting public information in a third frequency unit according to the third period includes: within a time window corresponding to the third period, in a time window according to the third period.
  • the third frequency unit detects public information.
  • detecting the public information in the third frequency unit according to the third period includes: according to the identification of the third frequency unit and the third period in the third frequency unit. Frequency units detect common information.
  • the at least two cycles further include a fourth cycle of the public information transmission.
  • the above solution can further improve the flexibility of public information transmission by configuring multiple public information transmission periods.
  • the method further includes: if no public information is detected on the third frequency unit according to the third cycle, based on the fourth cycle on the third frequency unit, the method further includes: The three-frequency unit detects public information.
  • the terminal device can adjust the detection period of the public signal according to multiple transmission periods of public information, which can improve the efficiency of the terminal device in detecting public information and improve the flexibility of the terminal device's initial access to the network device, thereby improving the user experience.
  • the fourth aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited in this application.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method may include: determining a third period in at least two periods, both of which are transmission periods of public information; and sending the public information to the terminal device in a third frequency unit according to the third period.
  • each of the at least two periods is a transmission period of public information on the third frequency unit; or, the at least two periods are included in the The transmission period of the common information on the third frequency unit and the transmission period of the common information on the fourth frequency unit.
  • the public information is used for the terminal device to initially access the network device.
  • the duration of the third period is longer than 20 ms.
  • sending the public information to the terminal device in the third frequency unit according to the third period includes: within the time window corresponding to the third period, according to the The public information is sent to the terminal device in the third frequency unit in the third period.
  • sending the public information to the terminal device in the third frequency unit according to the third period includes: according to the identification of the third frequency unit and the third period The public information is sent to the terminal device in the third frequency unit.
  • the at least two periods further include a fourth period, the fourth period being used to send the common information in the third frequency unit.
  • the fifth aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited in this application.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method may include: determining multiple time windows, the multiple time windows being used to detect public information from the network device, the duration of each time window in the multiple time windows being less than a transmission period of the public information; in the time window The public information is detected within the first time window.
  • the terminal device determines multiple time windows for detecting public information, and the duration of the multiple time windows is less than the transmission period of the public signal. Therefore, the terminal device does not need to continue detection within the duration of a transmission period, reducing The detection time of terminal equipment reduces the energy consumption of blind detection of terminal equipment and also improves the efficiency of terminal equipment in detecting public signals.
  • determining multiple time windows includes: determining starting times of the multiple time windows based on a fifth period and multiple first moments, the fifth period The duration is equal to the interval between two adjacent time windows in the multiple time windows, the duration of the fifth period is equal to an integer multiple of the transmission period of the public information, and the multiple first moments are for the terminal device to detect the public information candidate times, or the plurality of first times are candidate times for the network device to periodically send public information.
  • At least one interval among the intervals of different time windows in the plurality of time windows is equal to an integer multiple of the transmission period of the public information.
  • the transmission period is longer than 20 ms.
  • the frequency of the terminal device detecting the public signal can be reduced, thereby saving the power consumption of the terminal device.
  • the frequency with which network equipment sends public signals can also be reduced, thereby saving power consumption of network equipment.
  • the method further includes: when no public information is detected within the multiple time windows and at the first frequency domain position, based on the multiple time windows Detecting public information at a second frequency domain location.
  • Position detection of public signals can further reduce the detection time of terminal equipment, reduce the energy consumption of blind detection of terminal equipment, and also improve the efficiency of terminal equipment in detecting public signals.
  • a sixth aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited in this application.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method may include: determining multiple time windows used to send public information to the terminal device, the duration of the multiple time windows being less than a transmission period of the public information; and sending the public information to the terminal device within a first time window in the time window.
  • the terminal device sends public information.
  • determining the first time includes: determining starting times of the multiple time windows based on a fifth period and a plurality of first moments.
  • the duration is consistent with the multiple time windows. The intervals between two adjacent time windows are equal, the duration of the fifth period is equal to an integer multiple of the transmission period of the public information, and the plurality of first moments are candidate moments for the terminal device to detect the public information, or the plurality of first moments are candidate moments for the terminal device to detect the public information.
  • a moment is a candidate moment for network devices to periodically send public information.
  • At least one interval among the intervals of different time windows in the plurality of time windows is equal to an integer multiple of the transmission period of the public information.
  • the transmission period is longer than 20 ms.
  • a communication device in a seventh aspect, includes: a receiving unit configured to receive first information from a network device at a first frequency unit, the first information being used to indicate a first cycle of public information transmission; and processing A unit configured to detect the public information at a second frequency unit according to the first period.
  • the public information is used for initial access to the network device.
  • the duration of the first period is longer than 20 ms.
  • the first information is also used to indicate the time window corresponding to the first period
  • the processing unit is specifically configured to perform the operation within the time window corresponding to the first period. , detecting the common information in the second frequency unit according to the first period.
  • the first information is also used to indicate the identity of the second frequency unit; the processing unit is specifically configured to according to the identity of the second frequency unit and the third The common information is detected in the second frequency unit for one cycle.
  • the first information is also used to indicate the second cycle of the public information transmission.
  • the processing unit is further configured to: in the case where the public information is not detected according to the first period, in the second frequency unit according to the second period Detect this public information.
  • a communication device which device includes: a transceiver unit, configured to send first information to a terminal device in a first frequency unit, where the first information is used to indicate a first cycle of public information transmission; a processing unit , used to send the public information in the second frequency unit according to the first period.
  • the public information is used for the terminal device to initially access the network device.
  • the duration of the first period is longer than 20 ms.
  • the first information is also used to indicate at least one of the following: a time window corresponding to the first period and an identification of the second frequency unit.
  • the first information is also used to indicate the second period of public information transmission.
  • a communication device may include: a processing unit configured to determine a third period in at least two periods, both of which are transmission periods for public information; the processing unit , and is also used to detect the public information in the third frequency unit according to the third period.
  • the public information is used for initial access to the network device.
  • each of the at least two periods is A transmission period of common information on the third frequency unit; or, the at least two periods include a transmission period of common information on the third frequency unit and a transmission period of common information on the fourth frequency unit.
  • the duration of the third period is longer than 20 ms.
  • the processing unit is specifically configured to detect public information in the third frequency unit according to the third period within a time window corresponding to the third period.
  • the processing unit is specifically configured to detect public information in the third frequency unit according to the identity of the third frequency unit and the third period.
  • the at least two cycles further include a fourth cycle of the public information transmission.
  • the processing unit when no public information is detected on the third frequency unit according to the third period, the processing unit is also configured to detect the third frequency unit according to the fourth period.
  • the third frequency unit detects public information.
  • a communication device may include: a processing unit, configured to determine a third period in at least two periods, both of which are public information transmission periods; and a transceiver unit, configured to The public information is sent to the terminal device in the third frequency unit according to the third period.
  • each of the at least two periods is a transmission period of public information on the third frequency unit; or, the at least two periods are included in the The transmission period of the common information on the third frequency unit and the transmission period of the common information on the fourth frequency unit.
  • the public information is used for the terminal device to initially access the network device.
  • the duration of the third period is longer than 20 ms.
  • the transceiver unit is specifically configured to send the message to the terminal device in the third frequency unit according to the third period within the time window corresponding to the third period. Public information.
  • the transceiver unit is specifically configured to send the public information to the terminal device in the third frequency unit according to the identity of the third frequency unit and the third period.
  • the at least two cycles further include a fourth cycle, and the fourth cycle is used to send the public information in the third frequency unit.
  • a communication device may include: a processing unit configured to determine multiple time windows for detecting public information from network devices. Each time window within the multiple time windows is The duration of each time window is less than the transmission period of the public information; the processing unit is also used to detect the public information within the first time window in the time window.
  • the processing unit is specifically configured to determine the starting times of the plurality of time windows based on the fifth period and the plurality of first moments.
  • the duration is equal to the interval between two adjacent time windows in the multiple time windows
  • the duration of the fifth period is equal to an integer multiple of the transmission period of the public information
  • the multiple first moments are for the terminal device to detect the public information candidate times, or the plurality of first times are candidate times for the network device to periodically send public information.
  • the time windows of different time windows in the multiple time windows are At least one of the intervals is equal to an integer multiple of the transmission period of the public information.
  • the transmission period is longer than 20 ms.
  • the processing unit when no common information is detected within the multiple time windows and at the first frequency domain position, the processing unit is specifically configured to perform the processing according to the Multiple time windows detect common information at a second frequency domain location.
  • a communication device may include: a processing unit configured to determine multiple time windows for sending public information to the terminal device. The duration of the multiple time windows is less than the public information. The information transmission cycle; the transceiver unit is used to send public information to the terminal device within the first time window in the time window.
  • the processing unit is specifically configured to determine the starting times of the multiple time windows based on the fifth period and the multiple first moments.
  • the duration is equal to the interval between two adjacent time windows in the multiple time windows
  • the duration of the fifth period is equal to an integer multiple of the transmission period of the public information
  • the multiple first moments are for the terminal device to detect the public information candidate times, or the plurality of first times are candidate times for the network device to periodically send public information.
  • At least one interval among the intervals of different time windows in the plurality of time windows is equal to an integer multiple of the transmission period of the public information.
  • the transmission period is longer than 20 ms.
  • the devices provided in the seventh aspect to the twelfth aspect are communication equipment (such as network equipment, and such as terminal equipment).
  • the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the devices provided in the seventh aspect to the twelfth aspect are chips, chip systems or circuits used in communication equipment (such as network equipment, such as terminal equipment).
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit, etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc.
  • a communication device in a thirteenth aspect, includes: at least one processor for executing computer programs or instructions stored in a memory to perform the method in any of the possible implementations of the first to sixth aspects. .
  • the device further includes a memory for storing computer programs or instructions.
  • the device further includes a communication interface, through which the processor reads the computer program or instructions stored in the memory.
  • the device is a communication device (such as a network device or a terminal device).
  • the device is a chip, chip system or circuit used in communication equipment (such as network equipment, such as terminal equipment).
  • the present application provides a processor for executing the methods provided in the above-mentioned first to sixth aspects.
  • a computer-readable storage medium stores a program code for device execution.
  • the program code includes a program code for executing any of the possible implementations of the above-mentioned first to sixth aspects. Methods.
  • a sixteenth aspect provides a computer program product containing instructions, which when the computer program product is run on a computer, causes the computer to execute the method in any of the possible implementation modes of the first to sixth aspects.
  • a communication system including the aforementioned network equipment and terminal equipment.
  • FIG. 1 is a schematic diagram of an example of a system architecture applicable to this application.
  • FIG. 2 shows a schematic diagram of the communication method 100 provided by this application.
  • FIG. 3 shows a schematic diagram of the communication method 200 provided by this application.
  • Figure 4 shows a schematic diagram of the communication method 300 provided by this application.
  • FIG. 5 is a schematic diagram illustrating an example of the relationship between two adjacent first time intervals and a transmission cycle of common information.
  • FIG. 6 are schematic diagrams showing two more examples of the relationship between two adjacent first time intervals and the transmission cycle of the public information.
  • FIG. 7 is a schematic diagram of a communication device 500 provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another communication device 600 provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a chip system 700 provided by an embodiment of the present application.
  • the technical solutions provided by this application can be applied to various communication systems, such as fifth generation (5th generation, 5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division Duplex (frequency division duplex, FDD) system, LTE time division duplex (TDD) system, etc.
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation (6th generation, 6G) mobile communication system.
  • the technical solution provided by this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type Communication (machine type communication, MTC), and Internet of Things (Internet of things, IoT) communication systems or other communication systems.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type Communication
  • Internet of Things Internet of things, IoT
  • the base station (base station) or network equipment in this application can be an evolved base station (evolved NodeB, eNodeB), a transmission reception point (TRP), or a next generation base station (next generation NodeB, gNB) in the 5G mobile communication system. ), the next generation base station in the 6G mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also be a module or unit that completes some functions of the base station.
  • the base station can be used to send downlink public information, downlink control channels, downlink data channels, downlink measurement signals, etc. Receive uplink data channels, uplink control channels, uplink measurement signals, etc. sent by terminal equipment. This application is mainly aimed at the scenario where network equipment sends public information SSB and SIB1.
  • a terminal (user equipment, UE) is a device with wireless transceiver functions that can send signals to a base station or receive signals from a base station.
  • UE may also be called a terminal, a mobile station, a mobile terminal, etc.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle to everything (vehicle to everything, V2X) communication, machine-type communication (MTC), Internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, Smart wear, smart transportation, smart cities, etc.
  • D2D device-to-device
  • V2X vehicle to everything
  • MTC machine-type communication
  • IOT Internet of things
  • virtual reality virtual reality
  • augmented reality industrial control
  • autonomous driving telemedicine, smart grid, smart furniture, smart office, Smart wear, smart transportation, smart cities, etc.
  • Terminals can be mobile phones, tablets, computers with wireless transceiver functions, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal.
  • the UE can be used to receive/detect downlink public information, downlink control channels, and downlink data channels sent by network equipment. Send uplink data channel, uplink control channel, uplink measurement signal, etc.
  • This application is mainly aimed at the scenario of receiving/detecting public information SSB and SIB1.
  • the functions of the base station may also be performed by modules (such as chips) in the base station, or may be performed by a control subsystem that includes the base station functions.
  • the control subsystem containing base station functions here can be the control center in the above application scenarios such as smart grid, industrial control, smart transportation, smart city, etc.
  • the functions of the terminal can also be performed by modules in the terminal (such as chips or modems), or by a device containing the terminal functions.
  • Public information can also be called public signals or non-dedicated information. It can be understood as information sent by one communication device to multiple communication devices. Taking the communication system shown in Figure 1 as an example, public information can be understood as information sent by network equipment to the community. Information of multiple terminal devices or a terminal device group, or understood as information that the network device does not specifically send to a terminal device or a terminal device group in the community, or understood as information of multiple terminal devices or terminal devices in the community Information that a terminal device group can use together.
  • public information can be system information block (SIB), synchronization signal block (SSB), etc.
  • SIB system information block
  • SSB synchronization signal block
  • the periods at which network devices send different public information may be the same or different, and this application does not limit this.
  • the periods of SSB and SIB1 may be the same or different. The specific SSB and SIB1 will be introduced below.
  • SSB consists of two parts, namely synchronization signal (SS) and physical broadcast channel (PBCH).
  • the SS includes the primary synchronization signal (primary synchronization signal, PSS) and the secondary synchronization signal (secondary synchronization signal, SSS). Therefore, SSB can also be considered to include 3 parts.
  • SS and PBCH are jointly used to obtain cell identity (cell ID), downlink timing (find the reference point for downlink transmission, such as frame boundary), and obtain necessary system information (for example, the physical data corresponding to SIB1 The location of the time-frequency resources received by the downlink control channel (physical downlink control channel, PDCCH), etc.).
  • the SSB of 5G new radio (NR) mainly has two functions: 1) cell synchronization and master information block (MIB) acquisition, 2) base station side wide beam training.
  • MIB master information block
  • the terminal device Before the terminal device detects the SSB, it does not know the specific time-frequency resource location of the SSB. In other words, the terminal device needs to blindly detect the location of the SSB.
  • the synchronization raster is specifically defined in the NR protocol.
  • the synchronization grid a series of frequency domain positions can be determined, and the terminal device can detect SSB only at these frequency domain positions, thereby improving the efficiency of the terminal device in detecting SSB.
  • the intervals between adjacent frequency domain positions determined according to the synchronization grid may be different.
  • the frequency domain positions of this series can be 1200kHz, 1.44MHz and 17.28MHz respectively.
  • the terminal device will assume that the periodicity for the network device to send SSB is 20ms. That is to say, If the terminal device does not detect SSB at a frequency domain position determined by a synchronization grid after waiting for 20 ms, the terminal device may continue detection at another frequency domain position determined by another synchronization grid.
  • SIB1 contains a lot of information, such as parameters used to determine whether a cell is suitable for cell selection, and time domain scheduling information of other SIBs.
  • the main function of SIB1 is to complete the configuration of the primary cell (PCell), so that the UE in the idle state can monitor paging messages, or complete uplink timing synchronization through random access, thereby transitioning to the connected state.
  • the terminal device obtains the Cell ID, completes downlink timing synchronization, obtains the MIB, and then learns the potential time-frequency location of the downlink control information (DCI) of scheduling SIB1 through the indication information in the MIB.
  • the base station can schedule the physical downlink shared channel (PDSCH) through DCI and carry SIB1 through PDSCH; correspondingly, the UE blindly detects DCI at the potential time-frequency location. If DCI is detected, it can follow the DCI indication. , receive PDSCH according to the specified method on the specified time-frequency resource, thereby obtaining SIB1.
  • PDSCH physical downlink shared channel
  • SIB1 carries information necessary for random access, such as time-frequency resources for random access sent by the terminal device. Therefore, even if the terminal device detects SSB, if SIB1 is not received, the terminal device cannot perform random access and can only wait until SIB1 is received.
  • the frequency domain unit can be understood as a frequency domain range or bandwidth area.
  • the frequency domain unit can be understood as a measurement unit of resources occupied by information resources in the frequency domain.
  • the frequency unit may be a cell, a carrier, a frequency band, a bandwidth part (BWP) or a subband, etc., without limitation.
  • BWP bandwidth part
  • the first carrier can be used to represent the carrier used for communication when data transmission is not required. For example, when the terminal device is in an idle state or an inactive state, it can receive public information sent by the network device through the first carrier. For another example, compared to the second carrier, the first carrier has low power consumption and/or a slow rate.
  • the second carrier which may also be called an energy-saving carrier, may be used to represent the carrier used when data transmission is required or when access to network equipment is required. For example, compared to the first carrier, the second carrier has high power consumption and/or a fast speed.
  • the first carrier and the second carrier may be carriers with the same frequency emitted by two network devices (for example, the first carrier represents a cell under a certain base station, and the second carrier represents another cell under another base station), or they may They are two carriers with different frequencies emitted by a network device (for example, the first carrier and the second carrier represent two cells under a certain base station) and are not restricted.
  • the first carrier in this application can be used to carry public information of the second carrier, so that the terminal device can obtain the public information of the second carrier from the first carrier.
  • the following is a schematic diagram of an example of the system architecture applicable to this application, taking the public information as SSB and SIB1 as an example in conjunction with Figure 1.
  • the network device will send some public information, such as SSB and SIB1. Accordingly, the terminal device receives public information from the network device.
  • the end device detects SSB and SIB1. Then the terminal device implements initial access to the network device according to the instruction information in SSB and SIB1.
  • the terminal equipment On each carrier, the terminal equipment detects SSB with a 20ms cycle. When the detection time exceeds 20ms and the terminal device does not detect SSB, the terminal device may think that the network device did not send SSB at the candidate frequency domain position, so This terminal device may adjust to other candidate frequency domain positions to continue detecting SSB.
  • SIB1 includes information required for random access, such as the time-frequency resources used by the terminal device during the random access process. Therefore, even if the terminal device detects SSB, if the terminal device does not receive SIB1, the terminal device cannot perform random access and needs to continue waiting to receive SIB1. If the cycle for the network device to send SIB1 is too long, it may cause a long delay for the terminal device to access the network device, affecting the experience of the terminal device. Therefore, the period for the network device to send SIB1 is shorter, resulting in greater power overhead.
  • network equipment needs to periodically send SSB and SIB1 on each carrier.
  • the 20ms transmission cycle cannot adapt to different transmission needs.
  • Terminal equipment and network equipment transmit public information. Less flexibility.
  • Figure 2 shows a schematic diagram of the communication method 100 provided by this application.
  • the network device can flexibly configure one or more transmission periods of the public information, and indicate the transmission period of the public information to the terminal device.
  • the network device sends first information to the terminal device in the first frequency unit.
  • the terminal device receives the first information from the network device in the first frequency unit.
  • the first information is used to indicate that the first information is used to indicate the first cycle of public information transmission.
  • the public information is used for the terminal device to initially access the network device.
  • the terminal device when the terminal device is about to initially access the network device through a frequency unit (the second frequency unit), the terminal device cannot obtain the transmission cycle of the public information corresponding to the frequency unit from the frequency unit. It can obtain the transmission period of the public information corresponding to the frequency unit from other frequency units (the second frequency unit). (one frequency unit) obtains the transmission period of the public information corresponding to the frequency unit.
  • the public information is used for the terminal device to communicate with the network device through the second frequency domain unit.
  • the first information may be the duration of the first period.
  • the terminal device determines the first period according to the duration indicated by the first information.
  • the first information may indicate the index of the first period, and the terminal device determines the first period according to the index indicated by the first information.
  • the correspondence between different transmission periods of public information and the index may be predefined or configured, and the terminal device determines the first period based on the index indicated by the first information and the above correspondence.
  • the index of the transmission period of the public information may also be in other forms or names. For example, it may also be the identification of the transmission period of the public signal.
  • Table 1 is an example of the correspondence between different transmission cycles and indexes. In Table 1, different values of the index correspond to different transmission periods of the public signal.
  • Example 3 The first indication information indicates different modes, and different modes correspond to different transmission periods of public information.
  • different modes of public information and corresponding relationships between modes can be predefined or configured, and the terminal device determines the first period according to the mode indicated by the first information.
  • Table 2 is an example of the correspondence between different modes and different periods. Since the transmission cycle configuration of public signals is more flexible and can save the power consumption of network equipment, the modules in Table 2 mode can also be understood as energy-saving mode. This application does not limit this.
  • the first information is also used to indicate the second frequency unit.
  • the first information is also used to indicate the identity of the second frequency domain unit.
  • the public information transmission periods corresponding to different frequency units may be different.
  • the first information is used to indicate the identity of the first period and the second frequency unit, and the terminal device can determine based on the first information that the period in which the network device sends public information in the second frequency unit is the first period. That is to say, while the first information indicates the first period, it also indicates the frequency domain unit applied in the first period. In other words, while the first information indicates the first period, it also instructs the terminal device to detect the frequency of the common signal through the first period. domain unit.
  • the first information may also indicate the transmission period of other public signals and other frequency units, for example, the first information indicates mode 3 and the fifth frequency unit, then the terminal device can determine that the network device sends the public information in the fifth frequency unit.
  • the period is 80ms.
  • the first information is also used to indicate the time window corresponding to the first period, where the time window of the first period can be understood as the effective time of the first period.
  • the terminal device performs the operation according to the first period. Detect public information, and outside the effective time, the terminal device does not need to detect public information according to the first cycle.
  • the time window can also be understood as, within the time window, the transmission period of the public information is the first period, and outside the time window, the transmission period of the public signal is not the first period, or, outside the time window, the terminal device does not Detect public information.
  • different time windows correspond to different transmission periods of public information.
  • the first information indicates the time window corresponding to the first period and the first period.
  • the terminal device detects the common information in the second frequency unit according to the first period within the time window corresponding to the first period. For example, if the time window is 00:00-12:00, then the time window corresponding to the first period can be 00:00-12:00 every day, or if the time window is 5min to 45min, then the time window corresponding to the first period can be The time window is between 5 minutes and 45 minutes after the terminal device receives the first information, or the time window corresponding to the first period can also be other forms of indication, which is not limited in this application.
  • the communication method 100 before step S101, the communication method 100 further includes step S100: the network device determines the first period.
  • Method 1 The network device determines the first period based on the current network load. For example, when the network load is large, the first period is small, and when the network load is small, the first period is large. Through this method, the size of the first period can be adjusted according to the complex adaptation of the network device.
  • the network device can determine the first period based on the type of data in the network. For example, when the data transmitted in the network has high latency requirements, the first period determined by the network device is smaller, which is beneficial for the terminal device to quickly access the network device. When the data transmitted in the network has low latency requirements, the first period determined by the network device is larger.
  • the terminal device detects public information according to the period configured by the network device. Compared with the situation where the public information is always detected according to a fixed period, the flexibility of the terminal device in detecting public information can be improved, thereby improving the efficiency of the terminal device accessing the network device.
  • network equipment can configure the period for transmitting public information according to needs, which improves Flexibility of network devices to send public information.
  • the signaling overhead of network equipment can be reduced and the energy consumption of network equipment can be reduced.
  • S102 The network device sends public information to the terminal device in the second frequency unit according to the first period.
  • the network device indicates the transmission period of the public information to the terminal device through the first information.
  • the network device in the second frequency domain unit can also use the first period as the transmission period to periodically send the public signal, so that the terminal device can identify the network device in the second frequency domain unit and access the network.
  • S103 The terminal device detects public information in the second frequency unit according to the first period.
  • the first period can also be understood as the longest time for the terminal device to detect the candidate frequency domain position of the common signal included in the second frequency domain unit.
  • the terminal device can determine the longest time for detecting the public information at the first frequency domain position included in the second frequency unit according to the first period.
  • the time for the terminal device to detect public information at the first frequency domain position is greater than or equal to the length of the first period, and the terminal device does not detect the public information, the second frequency domain position will be selected to continue detection.
  • the domain position is a candidate frequency domain position that is different from the first frequency domain position among the candidate frequency domain positions.
  • the first frequency domain position is a frequency domain position determined according to the synchronization grid
  • the second frequency domain position is another frequency domain position determined according to the synchronization grid.
  • the first period can also be understood as a period in which the terminal device considers that the network device sends a common signal.
  • network equipment flexibly adjusts the transmission cycle of public information, can control signaling overhead, and adjust energy consumption.
  • the network device indicates the transmission cycle of public information to the terminal device, and the terminal device can detect the public information according to the cycle indicated by the network device, which improves the efficiency of the terminal device in detecting public information, reduces the delay of the terminal device accessing the network device, and can improve the terminal.
  • the flexibility of the device's initial access to the network device improves the user experience.
  • the network equipment adjusts the transmission period of public information, it allows the transmission period of public information corresponding to different frequency units to be different. By increasing the transmission period of public information, the overhead of public information can be reduced, thereby reducing the performance of the network equipment. Consumption. Therefore, this solution can reduce the energy consumption of network equipment without affecting the user experience.
  • Example 3 optionally, while the first information indicates the first period, it may also indicate other periods of common signal transmission, that is, the first information is used to indicate multiple transmission periods of the common signal.
  • the first information uses to indicate the first and second cycles of public information transmission.
  • the first information indicates a cycle set, and the cycle set includes a first cycle and a second cycle.
  • the first information may indicate multiple indexes of the transmission cycle of the public information, and the multiple indexes include the index of the first cycle and the index of the second cycle.
  • the first information may indicate two modes of public information transmission. , these two modes correspond to the first cycle and the second cycle.
  • different transmission periods of the public signal correspond to different time windows.
  • the first period is 80ms
  • the second period is 40ms
  • the time window corresponding to the first period is 00:00-00 every day.
  • the time window corresponding to the second period is 08:00-18:00 every day.
  • the first information may also indicate time windows corresponding to different transmission cycles of the public information.
  • the first information is used to indicate the first period and the second period, and the time windows corresponding to the first period and the second period respectively.
  • different transmission periods of the public signal correspond to different priorities. For example, if the priority of the first cycle is higher than that of the second cycle, then the terminal device detects public information in the second frequency unit according to the first cycle with a higher priority. If no public information is detected according to the first cycle, the terminal device then detects public information in the second frequency unit. Common information is detected at the second frequency unit according to the second period. For example, the first period is 20ms, the second period is 40ms, and the common signal is SSB. The terminal device detects SSB according to 20ms in the second frequency unit.
  • first message It can also indicate priorities corresponding to different transmission cycles of public information.
  • the first information is used to indicate the first period and the second period, and the priorities corresponding to the first period and the second period respectively.
  • the method 200 further includes: if the common information is not detected according to the first period, detecting the common information in the second frequency unit according to the second period.
  • the first information indicates the first period and the second period
  • the second frequency unit if no common information is detected according to the first period, it can be determined according to the priority or the time window corresponding to the current time.
  • the common information is to be detected in the second frequency unit according to the second period.
  • the above solution uses the network device to indicate to the terminal device multiple transmission cycles of public information, as well as the time windows and/or priorities corresponding to the multiple transmission cycles, further increasing the flexibility of the network device in adjusting the transmission cycle of public information, and also This further improves the efficiency of terminal equipment in detecting public information, improves the flexibility of initial access of terminal equipment to network equipment, and improves user experience.
  • the terminal device by configuring the time window, the terminal device detects public information in a more precise time window, thereby improving the efficiency of the terminal device in detecting public information and reducing the delay of the terminal device accessing the network device.
  • the first carrier used to carry the first information can also transmit third information.
  • the third information can change the transmission period of the common information on one or more frequency units except the second frequency unit.
  • Instructions to terminal equipment may indicate the transmission period of the public information on the first frequency unit to the terminal device, or the third information may indicate the transmission period of the public information on the third frequency unit to the terminal device. In other words, the transmission periods of public information on different frequency units may be different.
  • the first information and the third information on the first carrier may indicate transmission periods of common information corresponding to different frequency units.
  • the first information may include the correspondence between the identifier of the second frequency unit and the first period
  • the third information may include the correspondence between the identifier of the third frequency unit and the sixth period. Similar to the aforementioned terminal device determining that the transmission period of public information on the second frequency unit is the first period based on the first information, the terminal equipment may determine the transmission period of the public information on the third frequency unit being the sixth period based on the third information.
  • network equipment can realize different transmission periods of public information corresponding to different frequency units, further improving the flexibility of network equipment in adjusting the transmission period of public information.
  • the terminal device can obtain the periods corresponding to multiple frequency units from the network device through the first carrier, which can save the cost of terminal device detection and improve the efficiency of initial access.
  • the common information is detected in the second frequency unit according to the identifier of the second frequency unit and the first period. For example, there is a corresponding relationship between multiple periods and multiple frequency units.
  • the network device sends the identifier of the second frequency unit while sending the first period, so that the terminal device determines that the common information should be detected in the second frequency unit based on the first period.
  • the first information may also indicate a correspondence between the identifier of the second frequency unit and the pattern, and the correspondence is used to indicate that the common information is detected in the second frequency unit according to the pattern. It can enable the terminal device to detect public information in a more precise time window or frequency unit, thereby improving the efficiency of the terminal device in detecting public information and reducing the delay of the terminal device accessing the network device.
  • Figure 3 shows a schematic diagram of the communication method 200 provided by this application.
  • the difference between method 200 and method 100 is that in method 100, the terminal device determines the first period based on the first information from the network device, while in method 200, the terminal device determines the first period based on preconfigured information.
  • S201 The terminal device determines the third cycle in at least two cycles, and the network device determines the third cycle in at least two cycles, and the at least two cycles are both public information transmission cycles.
  • the public information is used for the terminal device to initially access the network device.
  • at least two cycles here may be pre-configured on the terminal device and the network device.
  • the terminal device when the terminal device is about to initially access the network device through a frequency unit, the terminal device cannot obtain the transmission period of the public information corresponding to the frequency unit from the frequency unit.
  • the terminal device obtains the transmission period based on preconfigured information. The transmission period of public information corresponding to the frequency unit.
  • At least two cycles preconfigured on the terminal device and the network device may correspond to one frequency unit or may correspond to multiple frequency units. Two examples are given below.
  • Example 1 Preconfigure at least two cycles of the terminal device and the network device to correspond to one frequency unit.
  • each of the at least two periods is a transmission period of common information on the third frequency unit.
  • the terminal equipment and the network equipment are pre-configured for at least two transmission cycles of common information on the third frequency unit.
  • the at least two transmission cycles include a third cycle and a fourth cycle, and the fourth cycle may be one or more transmission cycles of common information on the third frequency unit.
  • the at least two periods correspond to different priorities
  • the third period has the highest priority among the at least two periods.
  • the terminal device determines the third period in at least two periods according to the priority.
  • the at least two periods correspond to different time windows, and the terminal device includes the current time according to the time window corresponding to the third period, thereby determining the third period in the at least two periods.
  • the method 200 may further include: if the public information is not detected according to the third cycle, detecting the public information in the third frequency unit according to the fourth cycle.
  • the third period is replaced with the first period
  • the second period is replaced with the fourth period
  • the second frequency unit is replaced with the third frequency unit.
  • the way in which the network device determines the third period may refer to the way in which the terminal device determines the third period.
  • Example 2 At least two cycles preconfigured in the terminal device and the network device may correspond to multiple frequency units.
  • the at least two periods include transmission periods for common information on the third frequency unit and the fourth frequency unit, where the fourth frequency unit is one or more frequency units except the third frequency unit.
  • the network device can use different transmission periods of public information for different frequency units, and the terminal device can also determine the transmission period of public information based on different frequency units.
  • the corresponding relationship between the frequency unit and the public information transmission period may be preconfigured.
  • the terminal device and the network device are pre-configured with the corresponding relationships shown in Table 3. If the terminal equipment wants to detect the common signal in the third frequency unit according to the third period, then according to Table 3, it can be determined that the duration of the third period is 20 ms.
  • the network device and the terminal device can also be pre-configured with the corresponding relationship between the first column and the third column of Table 3, or the corresponding relationship and table between the first column and the second column of Table 3 can be pre-configured respectively. 1, or it can be in other forms, which is not limited by this application.
  • S202 The network device sends public information to the terminal device in the third frequency unit according to the third cycle.
  • both the network device and the terminal device determine that the transmission period of the public information on the third frequency unit is the third period, then the network device will use the third period as the transmission period in the third frequency unit, and the period Public signals are continuously sent to facilitate terminal equipment to identify network equipment on the third frequency domain unit and access the network.
  • S203 The terminal device detects public information in the third frequency unit according to the third cycle.
  • the difference is that the first period is replaced with the third period, and the second frequency unit is replaced with the third frequency unit.
  • the terminal device can determine the period for detecting the public signal based on the multiple transmission cycles, which can improve the efficiency of the terminal device in detecting public information and at the same time improve the initial connection of the terminal device.
  • the flexibility of network devices improves user experience.
  • the frequency of terminal equipment detecting public information can be reduced, thereby saving power consumption of the terminal equipment.
  • the frequency with which network devices send public information can also be reduced, thereby saving power consumption of network devices.
  • Figure 4 shows a schematic diagram of the communication method 300 provided by this application.
  • the terminal device and the network device determine a first time, the network device sends public information at the first time, and the terminal device detects the public information at the first time.
  • the terminal device and the network device determine one or more time windows.
  • the multiple time windows are used for the terminal device to detect public information from the network device.
  • the one or more time windows are used for the network device to send public information to the terminal device.
  • the duration of each time window in the one or more time windows is less than the transmission period of the public information.
  • the following description takes the terminal device and the network device to determine multiple time windows as an example.
  • the network device needs to determine that the public information will be sent within multiple time windows, and the terminal device will also detect the public information within multiple time windows.
  • the network device and the terminal device align the time windows for public information transmission, and the network device determines to send the public information in multiple time windows, so that the transmission cycle of the public information can be flexibly adjusted; the terminal device determines whether to send public information in multiple time windows. Detecting public information in multiple time windows does not need to consider the cycle of the network device sending public information.
  • the terminal device can consider that the network device has not sent public information at frequency domain location A, and the terminal device can immediately go to other frequency domain locations to continue detection. , instead of having to continuously detect the duration of a transmission cycle at frequency domain location A before going to other frequency domain locations to detect public information, it can reduce the time for terminal equipment to detect public information and reduce communication delay.
  • the above frequency domain position A and other frequency domain positions are candidate frequency domain configurations determined based on the synchronization grid.
  • How terminal devices and network devices determine multiple time windows include but are not limited to the following methods:
  • Method 1 Network equipment and terminal equipment determine multiple time windows according to a predefined method. The following uses network equipment and terminal equipment to determine the first time window as an example to introduce how to determine the time window according to a predefined method.
  • network equipment and terminal equipment can complete time synchronization according to the global navigation satellite system (GNSS).
  • GNSS global navigation satellite system
  • one of the multiple time windows can be predefined as 0:00:00 to 0:00:10ms.
  • the terminal equipment and network equipment can determine the time window based on GNSS, which is from 0:00:00 to 0:00:10ms.
  • other time windows among the plurality of time windows are determined in a similar manner.
  • Method 2 After the network device determines multiple time windows, it sends the multiple time windows to the terminal device through signaling. That is, the first time window is configured by the network device and indicated to the terminal device.
  • the network device may determine multiple time windows based on the transmission cycle of the public signal, and indicate the determined multiple time windows to the terminal device through signaling.
  • the transmission period of the public signal can be predefined by agreement, and the relationship with the time window can be predefined. Therefore, the transmission periods of different public signals correspond to different time windows.
  • the network device sends the transmission cycle of the public information to the terminal device through the first information.
  • the terminal device learns the transmission cycle of the public information and determines multiple time windows.
  • Example 1 At least one interval among the intervals of different time windows in the multiple time windows is equal to an integer multiple of the transmission period of the public information. In other words, at least one interval among the adjacent time windows is equal to the transmission period of the public information. An integer multiple of the transmission cycle.
  • T (k+1)t
  • T is the length of the interval between two adjacent time windows
  • t is the transmission period of public information
  • k is the public information sent by the network device in the interval between two adjacent time windows.
  • the number of information, k ⁇ 0 and k is an integer, t>0.
  • the abscissa is the time domain, and time increases from left to right.
  • the length of the abscissa can be understood as the duration.
  • Block S401 is the nth time window, and the duration occupied by S401 can be understood as the duration of the time window.
  • Figure 5 takes the n-th time window and the n+1-th time window as an example for illustration, where n is a positive integer.
  • the shaded square S402 is public information, and the time occupied by S402 can be understood as the time when the network device actually sends the public information.
  • the interval between the nth time window and the n+1th time window is T.
  • the duration occupied by S402 may be less than or equal to the duration occupied by S401.
  • Figure 5 of S401 is only for illustration and does not limit the duration of S401 and S402.
  • Example 2 Multiple time windows are arranged periodically, or in other words, the intervals between every two adjacent time windows are equal.
  • the network device and the terminal device determine the starting time of the multiple time windows based on the fifth period and the multiple first moments.
  • the length of the fifth period is equal to the interval between two adjacent time windows in the multiple time windows,
  • the duration of the fifth period is equal to an integer multiple of the transmission period of the public information.
  • the plurality of first moments are candidate moments for the terminal device to detect the public information, or the plurality of first moments are for the network device to periodically send the public information. candidate moments.
  • the network device and the terminal device may determine the starting times T n of the multiple time windows based on the first time T 0 and the transmission period t of the public information.
  • T n T 0 +mT, m ⁇ 0 and m is an integer, and T is the length of the interval between adjacent time windows.
  • T may be preconfigured, or T may be determined with reference to the description in Example 1.
  • the first time T 0 here may be the starting time of the time when the network device periodically sends public information. In this case, T 0 may be preconfigured or received from the network device.
  • the first time T 0 may be a candidate time for the network device to send public information, for example, it may be the starting time of any S402 in Figure 5 .
  • T 0 may be preconfigured, or the terminal device It is determined based on the starting time of the network device sending public information and the transmission period of the public information.
  • both S401 and S402 are time periods for illustration, but FIG. 5 does not limit this.
  • S402 may occupy one moment in the time window.
  • S302 The network device sends public information to the terminal device.
  • the network device sends public information within the multiple time windows.
  • both the network device and the terminal device determine multiple time windows. Then when the network device sends public information, it needs to ensure that the public information will be sent within the multiple time windows, so that the terminal device can identify in multiple time windows. to network equipment.
  • the period for the network device to send public information is greater than 20 ms.
  • the period in which the network device sends public information may be determined according to the method in method 100 or method 200.
  • S303 The terminal device detects public information in a first time window among the multiple time windows.
  • the terminal device determines that the multiple time windows are used to detect public information.
  • the terminal device may select one or more time windows (herein referred to as the first time window) within the multiple time windows to identify Internet equipment, Access the network.
  • the terminal device may detect public information at frequency domain location A within the first time window. If no public information is detected, the terminal device may consider that the network device did not send public information at frequency domain location A, and then It will immediately go to other frequency domain locations to continue detection, which can reduce the detection time of the terminal device. For example, when the duration of each time window is equal, the duration of each time window is 5 ms, and the duration of the first time window is also 5 ms. Even if the terminal device determines that the transmission period of public information is 40ms, the terminal device will not continuously detect the public information at frequency domain position A for 40ms, but will only detect the public information within 5ms of the first time window.
  • the above frequency domain position A and other frequency domain positions are candidate frequency domain configurations determined according to the synchronization grid.
  • the communication method 400 provided by this application is introduced above by taking one or more time windows as an example.
  • the time window in method 400 can be replaced by a moment.
  • the above method of determining multiple time windows by the network device and the terminal device can be replaced by a method of determining multiple time windows by the network device and the terminal device.
  • network equipment and terminal equipment can complete time synchronization according to the global navigation satellite system (GNSS), and determine multiple times according to a predefined method. Specifically, when the network device and the terminal device perform time synchronization based on GNSS, one time of the multiple time points is predefined as 0 hour, 0 minute and 0 second. Then the terminal equipment and network equipment can determine the time based on GNSS, which is 0 hours, 0 minutes and 0 seconds. Similarly, other moments in the plurality of moments are determined in a similar manner.
  • GNSS global navigation satellite system
  • multiple time windows are replaced by multiple times, and the starting time of the time window can also be understood as the time after the replacement of the time window.
  • the network device can send public information at this time, and the terminal device can also detect the public information at this time.
  • the network device within multiple time windows, can send public information, and the terminal device can detect the public information, and the duration of the multiple time windows is less than the transmission period of the public information, so the terminal device does not need to be in one transmission period. Continuous detection within the duration can determine whether public information can be detected at the current frequency domain location, reducing the detection time of terminal equipment, reducing the energy consumption of blind detection of terminal equipment, and improving the efficiency of terminal equipment in detecting public information.
  • the network equipment adjusts the transmission period of public information, it allows the transmission period of public information corresponding to different frequency units to be different. By increasing the transmission period of public information, the overhead of public information can be reduced, thereby reducing the performance of the network equipment. Consumption. Therefore, this solution can reduce the energy consumption of network equipment without affecting the user experience.
  • FIG. 7 is a schematic diagram of a communication device 500 provided by an embodiment of the present application.
  • the device 500 includes a transceiver unit 510, which may be used to implement corresponding communication functions.
  • the transceiver unit 510 may also be called a communication interface or a communication unit.
  • the device 500 may also include a processing unit 520, which may be used for data processing.
  • a processing unit 520 which may be used for data processing.
  • the device 500 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 520 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • Actions performed by communication equipment such as terminal equipment and network equipment).
  • the device 500 can be used to perform the actions performed by the communication device (such as a terminal device, or a network device) in each of the above method embodiments.
  • the device 500 can be a communication device (such as a terminal device, or a network device).
  • the transceiver unit 510 is used to perform transceiver-related operations on the side of the communication device (such as a terminal device, or a network device) in the above method embodiment
  • the processing unit 520 is used to perform the communication device in the above method embodiment. Processing-related operations on the side (such as terminal equipment or network equipment).
  • the device 500 is used to perform the actions performed by the terminal device in each of the above method embodiments.
  • the transceiver unit 510 is configured to receive the first information from the network device in the first frequency unit, the first information is used to indicate the first period, and the first period is used to detect in the second frequency unit Public information; detect public information in the second frequency unit according to the first period.
  • the processing unit 520 is also configured to detect public information in the second frequency unit according to the first period.
  • the first information is also used to indicate the time window corresponding to the first period.
  • the processing unit 520 is specifically configured to, within the time window corresponding to the first period, perform the processing in the second frequency unit according to the first period. Detect public information.
  • the transceiver unit 510 is also configured to detect public information in the second frequency unit according to the second period when no public information is detected according to the first period.
  • the first information is also used to indicate the time window corresponding to the first period.
  • the processing unit 520 is specifically configured to, within the time window corresponding to the first period, perform the processing according to the first period within the time window corresponding to the first period.
  • the second frequency unit detects the public information.
  • the first information is also used to indicate the identity of the second frequency unit; the processing unit 520 is specifically configured to perform the processing in the second frequency unit according to the identity of the second frequency unit and the first period.
  • the frequency unit detects the common information.
  • the processing unit 520 is further configured to detect the common information in the second frequency unit according to the second period.
  • the processing module 520 is used to determine multiple time windows, which are used to detect public information from network devices, and the duration of each time window in the multiple time windows is less than the public information. transmission cycle; the processing module 520 is also configured to detect the public information within the first time window in the time window.
  • the processing module 520 is specifically configured to determine the starting times of the plurality of time windows based on a fifth period and a plurality of first moments.
  • the length of the fifth period is the same as that of two adjacent time windows in the plurality of time windows.
  • the intervals between the time windows are equal, and the length of the fifth period is equal to an integer multiple of the transmission period of the public information.
  • the plurality of first moments are candidate moments for the terminal device to detect the public information, or the plurality of first moments are Candidate times for network devices to periodically send public information.
  • the processing module 520 is also configured to detect public information at the second frequency domain location according to the multiple time windows. .
  • the device 500 can implement steps or processes corresponding to the execution of the terminal device in the method embodiment according to the embodiment of the present application.
  • the device 500 can include a terminal device for executing the embodiment shown in Figure 2 or Figure 3 or Figure 4 The unit of execution of the method.
  • the device 500 is used to perform the actions performed by the network device in each of the above method embodiments.
  • the transceiver unit 510 is configured to send the first information to the terminal device in the first frequency unit, where the first information is used to indicate the first cycle of public information transmission; the transceiver unit 510 is also configured to transmit the public information according to the first frequency unit. The first period sends the public information in a second frequency unit.
  • the processing unit 520 is configured to determine the third period in at least two periods, and the at least two periods are transmission periods of public information; the transceiver unit 510 is configured to determine the third period according to the third period.
  • the public information is periodically sent to the terminal device in the third frequency unit.
  • the transceiver unit 510 is specifically configured to, within the time window corresponding to the third period, send The public information is sent to the terminal device in the third frequency unit.
  • the transceiver unit 510 is specifically configured to send the public information to the terminal device in the third frequency unit according to the identity of the third frequency unit and the third period.
  • the processing unit 520 is used to determine multiple time windows for sending public information to the terminal device, and the duration of the multiple time windows is less than the transmission period of the public information; the transceiver unit 510 , used to send public information to the terminal device within the first time window in the time window.
  • the processing unit 520 is specifically configured to determine the starting times of the plurality of time windows based on a fifth period and a plurality of first moments.
  • the duration of the fifth period is the same as that of two adjacent time windows in the plurality of time windows.
  • the intervals between the time windows are equal, and the length of the fifth period is equal to an integer multiple of the transmission period of the public information.
  • the plurality of first moments are candidate moments for the terminal device to detect the public information, or the plurality of first moments are Candidate times for network devices to periodically send public information.
  • the device 500 can implement steps or processes corresponding to the execution of the network device in the method embodiment according to the embodiment of the present application.
  • the device 500 can include a method for executing the execution of the network device in the embodiment shown in Figure 2 or Figure 3 or Figure 4. method unit.
  • the device 500 here is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a proprietary processor, or a group of processors
  • memory merged logic circuitry, and/or other suitable components to support the described functionality.
  • the apparatus 500 can be specifically a terminal device in the above embodiments, and can be used to execute various processes and/or steps corresponding to the terminal device in the above method embodiments, or , the device 500 may be specifically the network device in the above embodiments, and may be used to execute various processes and/or steps corresponding to the network devices in the above method embodiments. To avoid duplication, they will not be described again here.
  • the device 500 of each of the above solutions has the function of realizing the corresponding steps performed by the terminal device in the above method, or the device 500 of each of the above solutions has the function of realizing the corresponding steps of the network device in the above method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiving unit. (machine replacement), other units, such as processing units, etc., can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver unit 510 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in Figure 7 can be the network element or device in the aforementioned embodiment, or it can be a chip or a chip system, such as a system on chip (SoC).
  • the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip. No limitation is made here.
  • FIG. 8 is a schematic diagram of another communication device 600 provided by an embodiment of the present application.
  • the device 600 includes a processor 610 coupled to a memory 620 for storing computer programs or instructions and/or data.
  • the processor 610 is used for executing computer programs or instructions stored in the memory 620, or reading the memory 620. stored data, To execute the methods in each of the above method embodiments.
  • processors 610 there are one or more processors 610 .
  • the memory 620 is integrated with the processor 610, or is provided separately.
  • the device 600 also includes a transceiver 1030, which is used for receiving and/or transmitting signals.
  • the processor 610 is used to control the transceiver 1030 to receive and/or transmit signals.
  • the device 600 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the processor 610 is used to execute computer programs or instructions stored in the memory 620 to implement related operations of the terminal device in each of the above method embodiments. For example, the method executed by the terminal device in the embodiment shown in FIG. 2 or FIG. 3 or FIG. 4.
  • the device 600 is used to implement the operations performed by the network device in each of the above method embodiments.
  • the processor 610 is used to execute computer programs or instructions stored in the memory 620 to implement related operations of the network device in each of the above method embodiments. For example, the method performed by the network device in the embodiment shown in FIG. 2 or FIG. 3 or FIG. 4.
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (ASIC).
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache.
  • RAM includes the following forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), 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 link dynamic random access memory (synchlink DRAM, SLDRAM) and direct Memory bus random access memory (direct rambus RAM, DR RAM).
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • FIG. 9 is a schematic diagram of a chip system 700 provided by an embodiment of the present application.
  • the chip system 700 (or can also be called a processing system) includes a logic circuit 710 and an input/output interface 720.
  • the logic circuit 710 may be a processing circuit in the chip system 700 .
  • the logic circuit 710 can be coupled to the storage unit and call instructions in the storage unit, so that the chip system 700 can implement the methods and methods of various embodiments of the present application.
  • the input/output interface 720 can be an input/output circuit in the chip system 700, which outputs information processed by the chip system 700, or inputs data or signaling information to be processed into the chip system 700 for processing.
  • the logic circuit 710 can discover a message to the network device through the input/output interface 720, and the message can be a message that the logic circuit 710 can send according to the input/output interface 720. generated; or the input/output interface 720 may input the first information from the network device to the logic circuit 710 for processing.
  • the logic circuit 710 can send first information to the terminal device through the input/output interface 720, and the first information can be the logic circuit 710; or the input/output interface 720 can input messages from the terminal device to the logic circuit 710 for processing.
  • the chip system 700 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the logic circuit 710 is used to implement processing-related operations performed by the terminal device in the above method embodiment, such as processing-related operations performed by the terminal device in the embodiment shown in FIG. 2 or FIG. 3 or FIG. 4; input
  • the /output interface 720 is used to implement the sending and/or receiving related operations performed by the terminal device in the above method embodiment, such as the sending and/or receiving operations performed by the terminal device in the embodiment shown in Figure 2 or Figure 3 or Figure 4. or receive related operations.
  • the chip system 700 is used to implement the operations performed by the network device in each of the above method embodiments.
  • the logic circuit 710 is used to implement processing-related operations performed by the network device in the above method embodiment, such as processing-related operations performed by the network device in the embodiment shown in FIG. 2 or FIG. 3 or FIG. 4; input
  • the /output interface 720 is used to implement the sending and/or receiving related operations performed by the network device in the above method embodiment, such as the sending and/or receiving operations performed by the network device in the embodiment shown in Figure 2 or Figure 3 or Figure 4. or receive related operations.
  • Embodiments of the present application also provide a computer-readable storage medium on which are stored computer instructions for implementing the methods executed by terminal devices or network devices in each of the above method embodiments.
  • the computer program when executed by a computer, the computer can implement the method executed by the terminal device or network device in each embodiment of the above method.
  • Embodiments of the present application also provide a computer program product, which includes instructions.
  • the instructions are executed by a computer, the methods executed by terminal devices or network devices in each of the above method embodiments are implemented.
  • An embodiment of the present application also provides a communication system, which includes the terminal equipment and network equipment in the above embodiments.
  • the system includes the terminal device and the network device in the embodiment shown in Figure 2 or Figure 3 or Figure 4 .
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program produces The product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • 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, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as DVDs), or semiconductor media (such as solid state disks (SSD)).
  • the aforementioned available media include but Not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code.

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Abstract

一种通信方法和装置，该方法包括：网络设备在第一频率单元向终端设备发送第一信息，终端设备在第一频率单元接收来自网络设备的第一信息，第一信息用于指示网络设备在第二频率单元发送公共信息的第一周期，终端设备根据第一周期在第二频率单元检测公共信息。通过灵活配置公共信号的检测周期，可以提高终端设备检测公共信息的效率，提升终端设备初始接入网络设备的灵活性，提升了用户体验。

Description

通信方法与装置
本申请要求于2022年4月29日提交中国国家知识产权局、申请号为202210468689.5、申请名称为“通信方法与装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及无线通信领域，并且更具体地，涉及通信方法和通信装置。
背景技术
随着通信系统的逐步演进，网络设备配置的天线数目越来越多，导致网络设备整体的功率消耗也越来越大，如何降低网络设备的能耗，受到了越来越多的关注。降低网络设备的能耗的主要技术手段之一是减少网络设备对信号的传输。举例来说，若网络设备没有数据需要传输时，网络设备可不再传输任何信号，以降低网络设备的能耗。
但是，即使没有数据需要传输，网络设备在每个载波上，始终需要以20ms为周期，周期性的发送一些公共信息，该公共信息可用于终端设备识别网络设备，进而使得终端设备接入网络，如同步信号块(synchronization signal block，SSB)和系统信息块1(system information block 1，SIB1)。20ms的发送周期无法适配不同的传输需求，终端设备和网络设备传输公共信息的灵活性较低。
发明内容
本申请提供一种通信方法与装置，能够降低传输公共信息带来的能耗开销。
第一方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法可以包括：在第一频率单元接收来自网络设备的第一信息，该第一信息用于指示公共信息传输的第一周期；根据该第一周期在第二频率单元检测该公共信息。
结合第一方面，在第一方面的某些实现方式中，该公共信息用于初始接入该网络设备。
基于上述方案，终端设备根据网络设备配置的周期检测公共信息，相比较始终按照一个固定周期检测公共信息的情况，可以提高终端设备检测公共信息的灵活性，进而提高终端设备接入网络设备的效率。对应的，网络设备可以根据需求配置传输公共信息的周期，提高了网络设备发送公共信息的灵活性。
结合第一方面，在第一方面的某些实现方式中，该第一周期的时长大于20ms。
基于上述方案，通过增大公共信息的传输周期，能够降低终端设备检测公共信息的频率，从而节省终端设备的功耗。对应的，也能够降低网络设备发送公共信息的频率，从而节省网络设备的功耗。
结合第一方面，在第一方面的某些实现方式中，该第一信息还用于指示该第一周期对 应的时间窗，该根据该第一周期在第二频率单元检测该公共信息，包括：在该第一周期对应的时间窗内，根据该第一周期在该第二频率单元检测该公共信息。
基于上述方案，通过配置一个时间窗，能够避免终端设备一直检测公共信息造成的接入时延问题。
结合第一方面，在第一方面的某些实现方式中，该第一信息还用于指示该第二频率单元的标识；该根据该第一周期在第二频率单元检测该公共信息，包括：根据该第二频率单元的标识和该第一周期在第二频率单元检测该公共信息。
结合第一方面，在第一方面的某些实现方式中，该第一信息还用于指示该公共信息传输的第二周期。
上述方案，通过配置多个公共信息的传输周期，可以进一步提高公共信息传输的灵活性。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：在根据该第一周期未检测到该公共信息的情况下，根据该第二周期在该第二频率单元检测该公共信息。
基于上述方案，通过终端设备从网络设备接收公共信息的多个发送周期，终端设备可以根据需求调整公共信号的检测周期，可以提高终端设备检测公共信息的效率，提升终端设备初始接入网络设备的灵活性，从而提升用户体验。
第二方面，提供了一种通信方法，该方法可以由网络设备执行，或者，也可以由网络设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由网络设备执行为例进行说明。
该方法可以包括：在第一频率单元向终端设备发送第一信息，该第一信息用于指示公共信息传输的第一周期；根据该第一周期在第二频率单元发送该公共信息。
结合第二方面，在第二方面的某些实现方式中，该公共信息用于该终端设备初始接入该网络设备。
结合第二方面，在第二方面的某些实现方式中，该第一周期的时长大于20ms。
结合第二方面，在第二方面的某些实现方式中，该第一信息还用于指示以下至少一项：该第一周期对应的时间窗、该第二频率单元的标识。
结合第二方面，在第二方面的某些实现方式中，该第一信息还用于指示该公共信息传输第二周期。
第二方面及各个可能的设计的有益效果可以参考第一方面相关的描述，在此不予赘述。
第三方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法可以包括：在至少两个周期中确定第三周期，该至少两个周期均为用于公共信息的传输周期；根据该第三周期在第三频率单元检测该公共信息。
结合第三方面，在第三方面的某些实现方式中，该公共信息用于初始接入该网络设备。
基于上述方案，通过给终端设备预配置公共信息的多个传输周期，终端设备可以根据多个发送周期确定检测公共信号的周期，可以提高终端设备检测公共信息的效率，同时提升终端设备初始接入网络设备的灵活性，提升了用户体验。
结合第三方面，在第三方面的某些实现方式中，该至少两个周期中的每个周期均为该 第三频率单元上公共信息的传输周期；或者，该至少两个周期包括在该第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
结合第三方面，在第三方面的某些实现方式中，该第三周期的时长大于20ms。
基于上述方案，通过增大公共信息的传输周期，能够降低终端设备检测公共信息的频率，从而节省终端设备的功耗。对应的，也能够降低网络设备发送公共信息的频率，从而节省网络设备的功耗。
结合第三方面，在第三方面的某些实现方式中，该根据该第三周期在第三频率单元检测公共信息，包括：在该第三周期对应的时间窗内，根据该第三周期在该第三频率单元检测公共信息。
结合第三方面，在第三方面的某些实现方式中，该根据该第三周期在第三频率单元检测公共信息，包括：根据该第三频率单元的标识和该第三周期在该第三频率单元检测公共信息。
结合第三方面，在第三方面的某些实现方式中，该至少两个周期还包括该公共信息传输的第四周期。
上述方案，通过配置多个公共信息的传输周期，可以进一步提高公共信息传输的灵活性。
结合第三方面，在第三方面的某些实现方式中，该方法还包括：在该第三频率单元上根据该第三周期未检测到公共信息的情况下，根据该第四周期在该第三频率单元检测公共信息。
上述方案，终端设备可以根据公共信息的多个传输周期调整公共信号的检测周期，可以提高终端设备检测公共信息的效率，提升终端设备初始接入网络设备的灵活性，从而提升用户体验。
第四方面，提供了一种通信方法，该方法可以由网络设备执行，或者，也可以由网络设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由网络设备执行为例进行说明。
该方法可以包括：在至少两个周期中确定第三周期，该至少两个周期均为公共信息的传输周期；根据该第三周期在第三频率单元向终端设备发送该公共信息。
结合第四方面，在第四方面的某些实现方式中，该至少两个周期中的每个周期均为该第三频率单元上公共信息的传输周期；或者，该至少两个周期包括在该第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
结合第四方面，在第四方面的某些实现方式中，该公共信息用于该终端设备初始接入该网络设备。
结合第四方面，在第四方面的某些实现方式中，该第三周期的时长大于20ms。
结合第四方面，在第四方面的某些实现方式中，该根据该第三周期在第三频率单元向终端设备发送该公共信息，包括：在该第三周期对应的时间窗内，根据该第三周期在该第三频率单元向终端设备发送该公共信息。
结合第四方面，在第四方面的某些实现方式中，该根据该第三周期在第三频率单元向终端设备发送该公共信息，包括：根据该第三频率单元的标识和该第三周期在该第三频率单元向终端设备发送该公共信息。
结合第四方面，在第四方面的某些实现方式中，该至少两个周期还包括第四周期，该第四周期用于在该第三频率单元发送该公共信息。
第四方面及各个可能的设计的有益效果可以参考第三方面相关的描述，在此不予赘述。
第五方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法可以包括：确定多个时间窗，该多个时间窗用于检测来自网络设备的公共信息，该多个时间窗内每个时间窗的时长小于公共信息的传输周期；在该时间窗中的第一时间窗内检测该公共信息。
基于上述方案，终端设备通过确定用于检测公共信息的多个时间窗，且多个时间窗的时长小于公共信号的发送周期，因此终端设备不需要在一个发送周期的时长内持续检测，减少了终端设备检测的时间，降低终端设备盲检测的能耗，也能提升终端设备检测公共信号的效率。
结合第五方面，在第五方面的某些实现方式中，该确定多个时间窗，包括：根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
结合第五方面，在第五方面的某些实现方式中，该多个时间窗中不同的时间窗的间隔中至少有一个间隔等于公共信息的传输周期的整数倍。
结合第五方面，在第五方面的某些实现方式中，该传输周期的时长大于20ms。
基于上述方案，通过增大公共信号的传输周期，能够降低终端设备检测公共信号的频率，从而节省终端设备的功耗。对应的，也能够降低网络设备发送公共信号的频率，从而节省网络设备的功耗。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：当在该多个时间窗内以及第一频域位置未检测到公共信息的情况下，根据该多个时间窗在第二频域位置检测公共信息。
基于上述方案，多个时间窗内，终端设备在一个频域位置未检测到公共信息的情况下，就不会在第一频域位置继续检测公共信号了，根据多个时间窗去其他频域位置检测公共信号，进一步减少终端设备检测的时间，降低终端设备盲检测的能耗，也能提升终端设备检测公共信号的效率。
第六方面，提供了一种通信方法，该方法可以由网络设备执行，或者，也可以由网络设备的组成部件(例如芯片或者电路)执行，本申请对此不作限定。为了便于描述，下面以由网络设备执行为例进行说明。
该方法可以包括：确定多个时间窗，该多个时间窗用于向终端设备发送公共信息，该多时间窗的时长小于公共信息的传输周期；在该时间窗中的第一时间窗内向该终端设备发送公共信息。
结合第六方面，在第六方面的某些实现方式中，该确定第一时间，包括：根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相 邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
结合第六方面，在第六方面的某些实现方式中，该多个时间窗中不同的时间窗的间隔中至少有一个间隔等于公共信息的传输周期的整数倍。
结合第六方面，在第六方面的某些实现方式中，该传输周期的时长大于20ms。
第六方面及各个可能的设计的有益效果可以参考第五方面相关的描述，在此不予赘述。
第七方面，提供了一种通信装置：该装置包括：接收单元，用于在第一频率单元接收来自网络设备的第一信息，该第一信息用于指示公共信息传输的第一周期；处理单元，用于根据该第一周期在第二频率单元检测该公共信息。
结合第七方面，在第七方面的某些实现方式中，该公共信息用于初始接入该网络设备。
结合第七方面，在第七方面的某些实现方式中，该第一周期的时长大于20ms。
结合第七方面，在第七方面的某些实现方式中，该第一信息还用于指示该第一周期对应的时间窗，该处理单元，具体用于在该第一周期对应的时间窗内，根据该第一周期在该第二频率单元检测该公共信息。
结合第七方面，在第七方面的某些实现方式中，该第一信息还用于指示该第二频率单元的标识；该处理单元，具体用于根据该第二频率单元的标识和该第一周期在第二频率单元检测该公共信息。
结合第七方面，在第七方面的某些实现方式中，该第一信息还用于指示该公共信息传输的第二周期。
结合第七方面，在第七方面的某些实现方式中，该处理单元，还用于在根据该第一周期未检测到该公共信息的情况下，根据该第二周期在该第二频率单元检测该公共信息。
第七方面及各个可能的设计的有益效果可以参考第一方面相关的描述，在此不予赘述。
第八方面，提供了一种通信装置，该装置包括：收发单元，用于在第一频率单元向终端设备发送第一信息，该第一信息用于指示公共信息传输的第一周期；处理单元，用于根据该第一周期在第二频率单元发送该公共信息。
结合第八方面，在第八方面的某些实现方式中，该公共信息用于该终端设备初始接入该网络设备。
结合第八方面，在第八方面的某些实现方式中，该第一周期的时长大于20ms。
结合第八方面，在第八方面的某些实现方式中，该第一信息还用于指示以下至少一项：该第一周期对应的时间窗、该第二频率单元的标识。
结合第八方面，在第八方面的某些实现方式中，该第一信息还用于指示该公共信息传输第二周期。
第八方面及各个可能的设计的有益效果可以参考第二方面相关的描述，在此不予赘述。
第九方面，提供了一种通信装置，该装置可以包括：处理单元，用于在至少两个周期中确定第三周期，该至少两个周期均为用于公共信息的传输周期；该处理单元，还用于根据该第三周期在第三频率单元检测该公共信息。
结合第九方面，在第九方面的某些实现方式中，该公共信息用于初始接入该网络设备。
结合第九方面，在第九方面的某些实现方式中，该至少两个周期中的每个周期均为该 第三频率单元上公共信息的传输周期；或者，该至少两个周期包括在该第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
结合第九方面，在第九方面的某些实现方式中，该第三周期的时长大于20ms。
结合第九方面，在第九方面的某些实现方式中，该处理单元，具体用于在该第三周期对应的时间窗内，根据该第三周期在该第三频率单元检测公共信息。
结合第九方面，在第九方面的某些实现方式中，该处理单元，具体用于根据该第三频率单元的标识和该第三周期在该第三频率单元检测公共信息。
结合第九方面，在第九方面的某些实现方式中，该至少两个周期还包括该公共信息传输的第四周期。
结合第九方面，在第九方面的某些实现方式中，在该第三频率单元上根据该第三周期未检测到公共信息的情况下，该处理单元，还用于根据该第四周期在该第三频率单元检测公共信息。
第九方面及各个可能的设计的有益效果可以参考第三方面相关的描述，在此不予赘述。
第十方面，提供了一种通信装置，该装置可以包括：处理单元，用于在至少两个周期中确定第三周期，该至少两个周期均为公共信息的传输周期；收发单元，用于根据该第三周期在第三频率单元向终端设备发送该公共信息。
结合第十方面，在第十方面的某些实现方式中，该至少两个周期中的每个周期均为该第三频率单元上公共信息的传输周期；或者，该至少两个周期包括在该第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
结合第十方面，在第十方面的某些实现方式中，该公共信息用于该终端设备初始接入该网络设备。
结合第十方面，在第十方面的某些实现方式中，该第三周期的时长大于20ms。
结合第十方面，在第十方面的某些实现方式中，该收发单元，具体用于在该第三周期对应的时间窗内，根据该第三周期在该第三频率单元向终端设备发送该公共信息。
结合第十方面，在第十方面的某些实现方式中，该收发单元，具体用于根据该第三频率单元的标识和该第三周期在该第三频率单元向终端设备发送该公共信息。
结合第十方面，在第十方面的某些实现方式中，该至少两个周期还包括第四周期，该第四周期用于在该第三频率单元发送该公共信息。
第十方面及各个可能的设计的有益效果可以参考第四方面相关的描述，在此不予赘述。
第十一方面，提供了一种通信装置，该装置可以包括：处理单元，用于确定多个时间窗，该多个时间窗用于检测来自网络设备的公共信息，该多个时间窗内每个时间窗的时长小于公共信息的传输周期；该处理单元，还用于在该时间窗中的第一时间窗内检测该公共信息。
结合第十一方面，在第十一方面的某些实现方式中，该处理单元，具体用于根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
结合第十一方面，在第十一方面的某些实现方式中，该多个时间窗中不同的时间窗的 间隔中至少有一个间隔等于公共信息的传输周期的整数倍。
结合第十一方面，在第十一方面的某些实现方式中，该传输周期的时长大于20ms。
结合第十一方面，在第十一方面的某些实现方式中，当在该多个时间窗内以及第一频域位置未检测到公共信息的情况下，该处理单元，具体用于根据该多个时间窗在第二频域位置检测公共信息。
第十一方面及各个可能的设计的有益效果可以参考第五方面相关的描述，在此不予赘述。
第十二方面，提供了一种通信装置，该装置可以包括：处理单元，用于确定多个时间窗，该多个时间窗用于向终端设备发送公共信息，该多时间窗的时长小于公共信息的传输周期；收发单元，用于在该时间窗中的第一时间窗内向该终端设备发送公共信息。
结合第十二方面，在第十二方面的某些实现方式中，该处理单元，具体用于根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
结合第十二方面，在第十二方面的某些实现方式中，该多个时间窗中不同的时间窗的间隔中至少有一个间隔等于公共信息的传输周期的整数倍。
结合第十二方面，在第十二方面的某些实现方式中，该传输周期的时长大于20ms。
第十二方面及各个可能的设计的有益效果可以参考第六方面相关的描述，在此不予赘述。
在一种实现方式中，第七方面至第十二方面中提供的装置为通信设备(如网络设备，又如终端设备)。当该装置为通信设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，第七方面至第十二方面中提供的装置为用于通信设备(如网络设备，又如终端设备)的芯片、芯片系统或电路。当该装置为用于通信设备的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第十三方面，提供一种通信装置，该装置包括：至少一个处理器，用于执行存储器存储的计算机程序或指令，以执行上述第一方面至第六方面任一种可能实现方式中的方法。可选地，该装置还包括存储器，用于存储的计算机程序或指令。可选地，该装置还包括通信接口，处理器通过通信接口读取存储器存储的计算机程序或指令。
在一种实现方式中，该装置为通信设备(如网络设备，又如终端设备)。
在另一种实现方式中，该装置为用于通信设备(如网络设备，又如终端设备)的芯片、芯片系统或电路。
第十四方面，本申请提供一种处理器，用于执行上述第一方面至第六方面提供的方法。
对于处理器所涉及的发送和获取/接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则可以理解为处理器输出和接收、输入 等操作，也可以理解为由射频电路和天线所进行的发送和接收操作，本申请对此不做限定。
第十五方面，提供一种计算机可读存储介质，该计算机可读介质存储用于设备执行的程序代码，该程序代码包括用于执行上述第一方面至第六方面任一种可能实现方式中的方法。
第十六方面，提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面至第六方面任一种可能实现方式中的方法。
第十七方面，提供一种通信系统，包括前述的网络设备和终端设备。
附图说明
图1是本申请适用的系统架构的一例的示意图。
图2示出了本申请提供的通信方法100的示意图。
图3示出了本申请提供的通信方法200的示意图。
图4示出了本申请提供的通信方法300的示意图。
图5是相邻的两个第一时间的间隔和公共信息的发送周期的关系的一例的示意图。
图6中的(a)和(b)分别是相邻的两个第一时间的间隔和公共信息的发送周期的关系的再两例的示意图。
图7是本申请实施例提供的一种通信装置500的示意图。
图8是本申请实施例提供的另一种通信装置600的示意图。
图9是本申请实施例提供的芯片系统700的示意图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
本申请提供的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)或新无线(new radio，NR)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统等。本申请提供的技术方案还可以应用于未来的通信系统，如第六代(6th generation，6G)移动通信系统。本申请提供的技术方案还可以应用于设备到设备(device to device，D2D)通信，车到万物(vehicle-to-everything，V2X)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及物联网(internet of things，IoT)通信系统或者其他通信系统。本申请中的基站(base station)或网络设备可以是演进型基站(evolved NodeB，eNodeB)、发送接收点(transmission reception point，TRP)、5G移动通信系统中的下一代基站(next generation NodeB，gNB)、6G移动通信系统中的下一代基站、未来移动通信系统中的基站或WiFi系统中的接入节点等；也可以是完成基站部分功能的模块或单元。基站具体可以用于发送下行公共信息、下行控制信道、下行数据信道、下行测量信号等。接收终端设备发送的上行数据信道，上行控制信道，上行测量信号等。本申请主要针对网络设备发送公共信息SSB，SIB1的场景。
终端(user equipment，UE)是具有无线收发功能的设备，可以向基站发送信号，或接收来自基站的信号。UE也可以称为终端、移动台、移动终端等。终端可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything， V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。UE具体可以用于接收/检测网络设备发送的下行公共信息，下行控制信道、下行数据信道。发送上行数据信道，上行控制信道，上行测量信号等。本申请主要针对接收/检测公共信息SSB，SIB1的场景。
在本申请的实施例中，基站的功能也可以由基站中的模块(如芯片)来执行，也可以由包含有基站功能的控制子系统来执行。这里的包含有基站功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端的功能也可以由终端中的模块(如芯片或调制解调器)来执行，也可以由包含有终端功能的装置来执行。
为了便于理解本申请的实施例，下面介绍本申请实施例涉及的一些技术用语。
1、公共信息
公共信息，也可称为公共信号或者非专用信息，可以理解一个通信设备发送给多个通信设备的信息，以图1所示的通信系统为例，公共信息可以理解为网络设备发给小区中的多个终端设备或者一个终端设备组的信息，或者理解为，网络设备不特定发给小区中的某个终端设备或某个终端设备组的信息，或者理解为，小区内多个终端设备或者一个终端设备组可以共同使用的信息，例如，公共信息可以是系统信息(system information block，SIB)，同步信号(synchronization signal block，SSB)等。本申请中，网络设备发送不同的公共信息的周期可以相同，也可以不同，本申请对此不做限定。例如，在本申请实施例中，SSB和SIB1的周期可以相同，也可以不同。下面将介绍具体SSB和SIB1。
2、SSB
SSB包括2个部分，分别是同步信号(synchronization signal，SS)和物理广播信道(physical broadcast channel，PBCH)。而SS又包括主同步信号(primary synchronization signal，PSS)和辅同步信号(secondary synchronization signal，SSS)。因此，也可以认为SSB包括3个部分。SS与PBCH二者联合用于进行小区标识(cell identity，cell ID)获取、下行定时(找到下行传输的参考点，例如帧边界)、以及必要的系统消息的获取(例如，SIB1所对应的物理下行控制信道(physical downlink control channel，PDCCH)接收的时频资源的位置等)。5G新无线(new radio，NR)的SSB主要有2个功能：1)小区同步和主系统消息(master information block，MIB)获取，2)基站侧宽波束训练。
SSB检测
终端设备在检测到SSB之前，是不知道SSB具体的时频资源位置的，也就是说，终端设备需要盲检测SSB的位置。但是，由于NR中小区带宽非常宽，如果终端设备在每个频点上都去尝试检测SSB，将会导致终端设备接入速度非常慢。因此，NR协议中专门定义了同步栅格(synchronization raster)。根据同步栅格，可以确定一系列的频域位置，终端设备可以只在这些频域位置上检测SSB，进而提高了终端设备检测SSB的效率。可选地，在不同的频段，根据同步栅格确定的相邻的频域位置之间的间隔可以不同。例如这一系列的频域位置可以分别为1200kHz，1.44MHz以及17.28MHz。
此外，在初始接入中，终端设备会假设网络设备发送SSB的周期是20ms。也就是说， 如果在一个同步栅格所确定的频域位置上，如果终端设备等待20ms都没有检测到SSB，则终端设备可能会到别的同步栅格所确定的另外一个频域位置上继续检测。
3、SIB1
SIB1包含很多信息，例如用来判断某小区是否适合用于小区选择的参数，以及其它SIB的时域调度信息。SIB1最主要的功能是完成对主小区(primary cell,PCell)的配置，便于处于空闲态的UE监听寻呼消息，或者通过随机接入完成上行定时同步，从而转变为连接态。
SIB1检测
通过上述SSB检测，终端设备获取了Cell ID，完成了下行定时同步，获取了MIB，然后通过MIB中指示信息获知调度SIB1的下行控制信息(downlink control information,DCI)的潜在时频位置。这样，基站可以通过DCI调度物理下行数据信道(physical downlink shared channel,PDSCH)，并通过PDSCH来承载SIB1；对应地，UE在潜在时频位置盲检DCI，如果检测到DCI，就可以根据DCI指示，在指定的时频资源上按照指定的方法去接收PDSCH，从而获取SIB1。
另外，由于SIB1中承载随机接入必须的信息，例如终端设备发送随机接入的时频资源。因此，即使终端设备检测到了SSB，如果没有接收到SIB1，终端设备也无法进行随机接入，只能等待，直到接收到SIB1。
4、频率单元：
频域单元可以理解为一个频域范围，或者带宽区域。频域单位可以理解为用于信息的资源在频域占用的资源的计量单位。
本申请实施例中，频率单元可以为小区、载波、频带、带宽部分(bandwidth part，BWP)或子带等等，不予限制。在此做出统一说明，后面不再赘述。
5、第一载波：
第一载波，或者也可称为基础载波，可用于表示在不需要进行数据传输时，通信时所使用的载波。例如，终端设备在空闲态或者非激活(inactive)态下的时候，可以通过第一载波接收网络设备发送的公共信息。再例如，相比于第二载波，第一载波的功耗低和/或速率慢。其中，第二载波，或者也可称为节能载波，可用于表示需要数据传输时或者需要接入网络设备时所使用的载波。例如，相比于第一载波，第二载波的功耗高和/或速率快。第一载波和第二载波可以是两个网络设备发出的频率相同的载波(如第一载波表示某一基站下的一小区，第二载波为另一基站下的另一小区)，或者也可以是一个网络设备发出的频率不同的两个载波(如第一载波和第二载波表示某一基站下的两个小区)，不予限制。
需要说明的是，本申请中的第一载波可以用于承载第二载波的公共信息，从而终端设备可以从第一载波获取第二载波的公共信息。
下面结合图1，以公共信息为SSB和SIB1为例，介绍本申请适用的系统架构的一例的示意图。为了能够让终端设备识别网络设备，网络设备会发送一些公共信息，例如SSB和SIB1。相应地，终端设备接收来自网络设备的公共信息。终端设备检测到SSB和SIB1。随后终端设备根据SSB和SIB1中的指示信息实现初始接入网络设备。
在各个载波上，终端设备以20ms为周期检测SSB。当检测时间超过20ms终端设备未检测到SSB，那么终端设备可能会认为网络设备没有在该候选频域位置上发送SSB，因 此终端设备可能会调整到别的候选频域位置继续检测SSB。
对于SIB1，SIB1中包括随机接入所需的信息，例如终端设备在随机接入过程中所使用的时频资源。因此，即使终端设备检测到了SSB，如果终端设备没有接收到SIB1，那么终端设备也不能进行随机接入，需要继续等待接收SIB1。如果网络设备发送SIB1的周期过长，那么可能会导致终端设备接入网络设备的时延过长，影响终端设备的体验。因此网络设备发送SIB1的周期较短，带来的功率开销也较大。
综上，为了尽可能地提高终端设备的体验，网络设备需要在每个载波上周期性的发送SSB和SIB1。20ms的发送周期无法适配不同的传输需求，终端设备和网络设备传输公共信息的灵活性较低。
为了解决上述问题，本申请提供了解决方案。下面将结合附图，对本申请提供的通信方法进行详细说明。
图2示出了本申请提供的通信方法100的示意图。方法100中，网络设备可以灵活地配置公共信息的一个或者多个传输周期，并将公共信息的传输周期指示给终端设备。
S101，网络设备在第一频率单元向终端设备发送第一信息，相应地，终端设备在第一频率单元接收来自网络设备的第一信息。第一信息用于指示第一信息用于指示公共信息传输的第一周期。
示例性地，该公共信息用于终端设备初始接入网络设备。
应理解，当终端设备将要通过一个频率单元(第二频率单元)初始接入网络设备时，终端设备无法从该频率单元获取该频率单元对应的公共信息的传输周期，可以从其他频率单元(第一频率单元)获取该频率单元对应的公共信息的传输周期。
示例性地，该公共信息用于终端设备通过第二频域单元与网络设备通信。
关于第一信息如何指示第一周期，以下给出一些可选的示例：
示例1，该第一信息可以直接第一周期的时长。终端设备根据第一信息指示的时长确定第一周期。
示例2，该第一信息可以指示第一周期的索引，终端设备根据第一信息指示的索引确定第一周期。该示例下，可以预定义或者配置公共信息的不同传输周期和索引之间的对应关系，终端设备根据第一信息指示的索引和上述对应关系，确定第一周期。公共信息的传输周期的索引还可以是其他形式或名称，例如，还可以是公共信号的传输周期的标识。表1为不同传输周期和索引之间的对应关系的一种示例。表1中，索引的不同值对应公共信号的不同传输周期。
表1
示例3，该第一指示信息指示不同的模式，不同模式对应公共信息的不同传输周期。该示例下，可以预定义或者配置公共信息的不同模式和模式之间的对应关系，终端设备根据第一信息指示的模式，确定第一周期。表2为不同模式和不同周期的对应关系的一种示例。由于公共信号的传输周期配置更加灵活，能够节省网络设备的功耗，因此表2中的模 式也可以理解为节能模式。本申请对此不做限定。
表2
可选地，该第一信息还用于指示第二频率单元。例如，第一信息还用于指示第二频域单元的标识。
一种可选的方式中，不同的频率单元对应的公共信息的发送周期可以不同。此时，进一步可选的，第一信息用于指示第一周期和第二频率单元的标识，终端设备可以根据第一信息确定网络设备在第二频率单元发送公共信息的周期为第一周期。也即，第一信息指示第一周期的同时，还指示第一周期应用的频域单元，或者说，第一信息指示第一周期的同时，还指示终端设备通过第一周期检测公共信号的频域单元。
可选地，第一信息还可以指示其他公共信号的传输周期和其他频率单元的，比如第一信息指示模式3和第五频率单元，那么终端设备可以确定网络设备在第五频率单元发送公共信息的周期为80ms。
可选的，该第一信息还用于指示第一周期对应的时间窗，其中，第一周期的时间窗可以理解为第一周期的生效时间，在该生效时间内，终端设备根据第一周期检测公共信息，而在该生效时间外，终端设备无需根据第一周期检测公共信息。或者，时间窗还可以理解为，在该时间窗内公共信息的传输周期为第一周期，在该时间窗外，公共信号的传输周期不为第一周期，或者，在该时间窗外，终端设备不检测公共信息。
一种可选的方式中，不同的时间窗对应的公共信息的发送周期不同。第一信息指示第一周期对应的时间窗和第一周期，相应地，终端设备在该第一周期对应的时间窗内，根据第一周期在第二频率单元检测公共信息。例如，该时间窗为00：00-12：00，则第一周期对应的时间窗可以是每天的00：00-12：00，或者，该时间窗为5min至45min，则第一周期对应的时间窗为终端设备接收到第一信息之后5min至45min之间，或者，第一周期对应的时间窗还可以是其他形式的指示方式，本申请对此不做限定。
在一个可能的实施例中，在步骤S101之前，通信方法100还包括步骤S100：网络设备确定第一周期。
关于网络设备如何确定第一周期，可以有以下几种实现方式：
方式一：网络设备根据当前网络的负载来确定第一周期。例如，当网络负载较大时，第一周期较小，网络负载较小时，第一周期较大。通过该方法，能够根据网络设备的复杂自适应调整第一周期的大小。
方式二：网络设备可以根据网络中数据的类型来确定第一周期。例如，当网络中传输的数据对于时延要求较高时，网络设备确定的第一周期较小，有利于终端设备快速接入网络设备。当网络中传输的数据对于时延要求较低时，网络设备确定的第一周期较大。
应理解，终端设备根据网络设备配置的周期检测公共信息，相比较始终按照一个固定周期检测公共信息的情况，可以提高终端设备检测公共信息的灵活性，进而提高终端设备接入网络设备的效率。对应的，网络设备可以根据需求配置传输公共信息的周期，提高了 网络设备发送公共信息的灵活性。另外，通过增大公共信息的发送周期，可以减少网络设备的信令开销，降低网络设备的能耗。
S102，网络设备根据第一周期在第二频率单元向终端设备发送公共信息。
具体的，在步骤S101中，网络设备通过第一信息向终端设备指示了公共信息的传输周期。对应的，网络设备在第二频域单元可以也以第一周期为发送周期，周期性地发送公共信号，便于终端设备在在第二频域单元上识别网络设备，接入网络。
S103，终端设备根据第一周期在所述第二频率单元检测公共信息。
示例性地，第一周期也可以理解为，终端设备在第二频域单元上包括的公共信号的候选频域位置上，检测的最长时间。以第一频域位置为公共信号的一个候选频域位置为例，终端设备根据第一周期可以确定在第二频率单元包括的第一频域位置上检测公共信息的最长时间。当终端设备在该第一频域位置上检测公共信息的时间大于或等于第一周期的时长，且终端设备没有检测到公共信息时，则会选择第二频域位置继续检测，该第二频域位置为候选频域位置中，不同于第一频域位置的候选频域位置。例如该第一频域位置是根据同步栅格所确定的频域位置，该第二频域位置为根据同步栅格所确定的其他频域位置。或者，示例性地，第一周期也可以理解为终端设备认为网络设备发送公共信号的周期。
本申请实施例，网络设备灵活地调整公共信息的传输周期，能够控制信令开销，调整能耗。通过网络设备向终端设备指示公共信息的传输周期，终端设备可以根据网络设备指示的周期检测公共信息，提高了终端设备检测公共信息的效率，降低终端设备接入网络设备的时延，可以提升终端设备初始接入网络设备的灵活性，提升了用户体验。
进一步地，网络设备在调整公共信息的传输周期时，允许不同的频率单元对应的公共信息的传输周期不同，可以通过增大公共信息的传输周期，降低公共信息的开销，进而降低网络设备的能耗。从而本方案可以在不影响用户体验的同时，实现降低网络设备的能耗。
示例3，可选地，第一信息指示第一周期的同时，还可以指示公共信号传输的其它周期，也即，第一信息用于指示公共信号的多个传输周期，例如，第一信息用于指示公共信息传输的第一周期和第二周期。具体的，第一信息指示一个周期集合，该周期集合包括第一周期和第二周期。又例如，第一信息可以指示公共信息的传输周期的多个个索引，该多个索引包括第一周期的索引和第二周期的索引，再例如，第一信息指示公共信息传输的两个模式，该两个模式对应第一周期和第二周期。在一种可选的方式中，公共信号的不同传输周期对应不同的时间窗，例如，第一周期为80ms，第二周期为40ms，且第一周期对应的时间窗为每天的00：00-8：00，第二周期对应的时间窗为每天的08：00-18：00。可选的，第一信息还可以指示公共信息的不同的传输周期对应的时间窗。例如，第一信息用于指示第一周期和第二周期，以及第一周期和第二周期分别对应的时间窗。
另一种可选的方式中，公共信号的不同传输周期对应不同的优先级。例如，第一周期的优先级高于第二周期，那么终端设备根据优先级更高的第一周期在第二频率单元检测公共信息，在根据第一周期未检测到公共信息的情况下，再根据第二周期在所述第二频率单元检测公共信息。例如，第一周期为20ms，第二周期为40ms，公共信号为SSB。终端设备在该第二频率单元内根据20ms检测SSB，如果终端设备在第二频率单元内的根据同步栅格所确定的多个频域位置均没有检测到SSB，则终端设备根据40ms检测SSB，在第二频率单元内的同步栅格所确定的一个或多个频域位置上继续检测SSB。可选的，第一信息 还可以指示公共信息的不同的传输周期对应的优先级。例如，第一信息用于指示第一周期和第二周期，以及第一周期和第二周期分别对应的优先级。
可选地，方法200还包括：在根据第一周期未检测到公共信息的情况下，根据第二周期在第二频率单元检测公共信息。与上述第一信息指示第一周期和第二周期的方式对应的，在第二频率单元，根据第一周期未检测到公共信息的情况下，可以根据优先级或者当前时间对应的时间窗，确定要根据第二周期在第二频率单元检测公共信息。
上述方案，通过网络设备向终端设备指示公共信息的多个传输周期，以及多个传输周期对应的时间窗，和/或优先级，进一步增加了网络设备调整公共信息的传输周期的灵活性，也进一步提高了终端设备检测公共信息的效率，提升终端设备初始接入网络设备的灵活性，提升用户体验。
上述方案，通过配置时间窗，终端设备在更精确的时间窗检测公共信息，从而能够提高终端设备检测公共信息的效率，降低终端设备接入网络设备的时延。
示例4，可选地，用于承载第一信息的第一载波上还可以传输第三信息，该第三信息可以将除第二频率单元以外的一个或多个频率单元上公共信息的传输周期指示给终端设备。例如该第三信息可以将第一频率单元上公共信息的传输周期指示给终端设备，或者，第三信息可以将第三频率单元上公共信息的传输周期指示给终端设备。也就是说，不同的频率单元上的公共信息的传输周期可能不同。
例如，第一载波上的第一信息和第三信息可以指示不同的频率单元对应的公共信息的传输周期。比如，第一信息可以包括第二频率单元的标识和第一周期的对应关系，第三信息可以包括第三频率单元的标识和第六周期的对应关系。与前述终端设备根据第一信息确定第二频率单元上公共信息的传输周期为第一周期类似，终端设备可以根据第三信息确定第三频率单元上公共信息的传输周期为第六周期。
上述方案，网络设备可以实现不同频率单元对应的公共信息的传输周期不同，进一步提高网络设备调整公共信息的传输周期的灵活性。终端设备可以通过第一载波从网络设备获取多个频率单元对应的周期，可以节省终端设备检测的开销，也能提高初始接入的效率。
再例如，根据第二频率单元的标识和第一周期在第二频率单元检测所述公共信息。例如，多个周期和多个频率单元存在对应关系，网络设备在发送第一周期的同时发送了第二频率单元的标识，从而终端设备确定在第二频率单元要根据第一周期检测公共信息。再例如，第一信息还可以指示第二频率单元的标识与模式的对应关系，该对应关系用于指示在第二频率单元根据该模式检测公共信息。可以使得终端设备在更精确的时间窗或频率单元检测公共信息，从而能够提高终端设备检测公共信息的效率，降低终端设备接入网络设备的时延。
图3示出了本申请提供的通信方法200的示意图。方法200与方法100的区别在于，方法100中终端设备是根据来自网络设备的第一信息确定的第一周期，方法200中，终端设备根据预配置信息确定第一周期。
S201，终端设备在至少两个周期中确定第三周期，网络设备在至少两个周期中确定第三周期，该至少两个周期均为公共信息的传输周期。
示例性地，该公共信息用于终端设备初始接入网络设备。示例性地，这里的至少两个周期可以是预配置在终端设备和网络设备的。
应理解，当终端设备将要通过一个频率单元初始接入网络设备时，终端设备无法从该频率单元获取该频率单元对应的公共信息的传输周期，方法200中终端设备是根据预配置的信息获取该频率单元对应的公共信息的传输周期。
预配置在终端设备和网络设备的至少两个周期可以与一个频率单元对应，也可以与多个频率单元对应。下面给出两个示例。
示例1，预配置在终端设备和网络设备的至少两个周期与一个频率单元对应。例如，该至少两个周期的每个周期均为所述第三频率单元上公共信息的传输周期。可以理解为，终端设备和网络设备预配置了用于在第三频率单元上公共信息的至少两个传输周期，例如该至少两个传输周期中包括第三周期和第四周期，该第四周期为可以为在第三频率单元上公共信息的一个或多个传输周期。
例如，该至少两个周期对应不同的优先级，第三周期是该至少两个周期中优先级最高的。终端设备根据优先级在至少两个周期中确定第三周期。再例如，该至少两个周期对应不同的时间窗，终端设备根据第三周期对应的时间窗包括当前时间，从而在至少两个周期中确定第三周期。
可选地，方法200还可以包括：在根据第三周期未检测到公共信息的情况下，根据第四周期在所述第三频率单元检测公共信息。具体可以参见方法100中示例3对应的描述，区别在于，将第三周期替换为第一周期，将第二周期替换为第四周期，将第二频率单元替换为第三频率单元。
类似地，网络设备确定第三周期的方式可以参考终端设备确定第三周期的方式。
示例2，预配置在终端设备和网络设备的至少两个周期可以与多个频率单元对应。例如，该至少两个周期中包括用于在第三频率单元和第四频率单元上的公共信息的传输周期，其中，第四频率单元为除第三频率单元以外的一个或多个频率单元。可以理解为，网络设备可以针对不同的频率单元使用不同的公共信息的传输周期，终端设备也可以根据不同的频率单元确定公共信息的传输周期。
可选地，频率单元与公共信息传输周期的对应关系可以是预配置的。例如，终端设备和网络设备预配置了表3所示的对应的关系。终端设备如果要在第三频率单元根据第三周期检测公共信号，那么根据表3可以确定第三周期的时长为20ms。或者，网络设备和终端设备还可以预配置了表3的第一列和第三列的对应的关系，或者，还可以分别预配置了表3的第一列和第二列的对应关系和表1，或者还可以是其他形式，本申请对此不做限定。
表3
S202，网络设备根据第三周期在第三频率单元向终端设备发送公共信息。
具体地，在步骤S201中，网络设备和终端设备都确定了第三频率单元上公共信息的传输周期为第三周期，那么网络设备就会在第三频率单元以第三周期为发送周期，周期性地发送公共信号，便于终端设备在第三频域单元上识别网络设备，接入网络。
S203，终端设备根据第三周期在第三频率单元检测公共信息。
具体可以参见方法100中的S103对应的描述，区别在于：将第一周期替换为第三周期，将第二频率单元替换为第三频率单元。
本申请实施例，通过给终端设备预配置公共信息的多个传输周期，终端设备可以根据多个发送周期确定检测公共信号的周期，可以提高终端设备检测公共信息的效率，同时提升终端设备初始接入网络设备的灵活性，提升了用户体验。另外，通过增大公共信息的传输周期，能够降低终端设备检测公共信息的频率，从而节省终端设备的功耗。对应的，也能够降低网络设备发送公共信息的频率，从而节省网络设备的功耗。
图4示出了本申请提供的通信方法300的示意图。方法300中，终端设备和网络设备确定第一时间，网络设备在第一时间发送公共信息，终端设备在第一时间检测公共信息。
S301，终端设备和网络设备确定一个或多个时间窗，该多个时间窗用于终端设备检测来自网络设备的公共信息，该一个或多个时间窗用于网络设备向终端设备发送公共信息，该一个或多个时间窗中的每个时间窗的时长小于公共信息的传输周期。
下面以终端设备和网络设备确定多个时间窗为例进行说明。
关于该多个时间窗用于终端设备检测来自网络设备的公共信息，该多个时间窗用于网络设备向终端设备发送公共信息，可以理解的是，无论多个时间窗是如何确定的，也无论网络设备发现公共信息的周期为多少，网络设备需要确定多个时间窗内会发送公共信息，终端设备也会在多个时间窗内检测公共信息。换句话说，在方法300中，网络设备和终端设备对齐公共信息传输的时间窗，网络设备确定在多个时间窗内发送公共信息，就可以灵活地调整公共信息的传输周期；终端设备确定在多个时间窗内检测公共信息，也可以不需要考虑网络设备发送公共信息的周期。
关于每个时间窗的时长小于公共信息的传输周期，可以理解的是，相比于终端设备在一个资源位置需要持续检测一个传输周期的时长，才能确定没有检测到公共信息方法300中，如果在多个时间窗内，终端设备在频域位置A上没有检测到公共信息，则终端设备可以认为网络设备在频域位置A上没有发送公共信息，终端设备可以立刻去其他频域位置上继续检测，而不用在频域位置A持续检测一个传输周期的时长才能去其他频域位置检测公共信息，能够降低终端设备检测公共信息的时间，降低通信时延。
可选的，上述频域位置A和其他频域位置都是根据同步栅格确定的候选频域配置。
关于终端设备和网络设备如何确定多个时间窗包括但不限于以下几种方式：
方式一，网络设备和终端设备根据预定义的方式确定多个时间窗。下面以网络设备和终端设备确定第一时间窗为例，介绍如何根据预定义的方式确定时间窗。
例如，网络设备和终端设备可以根据全球导航卫星系统(global navigation satellite system，GNSS)完成时间同步。具体地，在网络设备和终端设备根据GNSS进行时间同步的情况下，可以预定义多个时间窗中一个时间窗为0时0分0秒至0时0分10ms。那么终端设备和网络设备可以根据GNSS来确定该时间窗，即为0时0分0秒至0时0分10ms。类似地，多个时间窗中的其他时间窗的确定方式与之类似。
方式二，网络设备确定多个时间窗后，通过信令将多个时间窗发送给终端设备。也即，第一时间窗由网络设备配置，并指示给终端设备。
例如，网络设备可以根据公共信号的传输周期确定多个时间窗，并将确定的多个时间窗通过信令指示给终端设备。例如，可以协议预定义公共信号的传输周期，与时间窗的关 系，不同公共信号的传输周期对应的时间窗不同。网络设备通过第一信息将公共信息的传输周期发送给终端设备，终端设备获知公共信息的传输周期，也就确定了多个时间窗。
示例1，该多个时间窗中不同的时间窗的间隔中至少有一个间隔等于公共信息的传输周期的整数倍，换句话说，相邻的时间窗的间隔中至少有一个间隔等于公共信息的传输周期的整数倍。
例如，T＝(k+1)t，T为相邻的两个时间窗的间隔的时长，t为公共信息的传输周期，k为相邻的两个时间窗的间隔中网络设备发送的公共信息的个数，k≥0且k为整数，t＞0。
下面以图5为例，对相邻的两个时间窗的间隔和公共信息的传输周期的关系进行详细说明。如图5所示，横坐标为时域，从左往右时间递增，横坐标的长度可以理解为时长。方块S401为第n个时间窗，S401占据的时长可以理解为时间窗的时长。图5中以第n个时间窗和第n+1个时间窗为例进行说明，其中，n为正整数。阴影方块S402为公共信息，S402占据的时长可以理解为网络设备实际发送公共信息的时间。第n个时间窗和第n+1个时间窗之间的间隔为T。在一个T内，网络设备可能发送了k个公共信息。具体地，当k＝0时，T＝t；当k＞0时，T＝(k+1)t。需要说明的是，S402占据的时长可以小于或等于S401占据的时长，在S401图5仅为示意，并不对S401和S402的时长造成限定。
示例2，多个时间窗周期性排列，或者说，每两个相邻的时间窗之间的间隔相等。
网络设备和终端设备根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
例如，网络设备和终端设备可以根据第一时刻T0和公共信息的传输周期t确定多个时间窗的起始时间Tn。例如，Tn＝T0+mT，m≥0且m为整数，T为相邻的时间窗的间隔的时长。T可以是预配置的，或者T可以参考示例1中的描述确定。这里的第一时刻T0可以是网络设备周期性发送公共信息的时间的起始时刻，在该情况下，T0可以是预配置的，或者从网络设备接收的。或者，第一时刻T0可以是网络设备发送公共信息的候选时刻，例如可以是图5中的任一个S402的起始时间，在该情况下，T0可以是预配置的，或者，终端设备根据网络设备发送公共信息的起始时间和公共信息的传输周期确定的。
需要说明的是，图5中是以S401和S402均为时间段为例进行说明的，但图5对此并不造成限定。例如，如图6中的(b)所示，S402可以在时间窗中占据一个时刻。
S302，网络设备向终端设备发送公共信息。
示例性地，网络设备在该多个时间窗内发送公共信息。
具体地，S301中，网络设备和终端设备都确定了多个时间窗，那么网络设备发送公共信息时就需要保证该多个时间窗内会发送公共信息，便于终端设备可以在多个时间窗识别到网络设备。
可选地，网络设备发送公共信息的周期大于20ms。具体地，网络设备发送公共信息的周期可以根据方法100或方法200中的方式确定。
S303，终端设备在该多个时间窗中的第一时间窗内检测公共信息。
应理解，S301中，终端设备确定该多个时间窗用于检测公共信息，S303中，终端设备可以在该多个时间窗内选择一个或多个时间窗(这里称为第一时间窗)识别网络设备， 接入网络。
示例性地，终端设备可以在第一时间窗内，在频域位置A上检测公共信息，如果没有检测到公共信息，则终端设备可以认为网络设备在频域位置A上没有发送公共信息，就会立刻去其他的频域位置上继续检测，可以减少终端设备检测的时间。例如，在每个时间窗的时长相等的情况下，每个时间窗的时长为5ms，第一时间窗的时长也为5ms。即使终端设备确定公共信息的传输周期为40ms，终端设备也不会在频域位置A上持续检测40ms，而是只在第一时间窗所在的5ms内检测公共信息。
示例性地，上述频域位置A和其他频域位置都是根据同步栅格确定的候选频域配置。
还需要说明的是，上面以一个或多个时间窗为例介绍本申请提供的通信方法400。在另一种可能的实现方式中，方法400中的时间窗可以替换为一个时刻。
例如，上述网络设备和终端设备确定多个时间窗的方式，就可以替换为网络设备和终端设备确定多个时刻的方式。例如，网络设备和终端设备可以根据全球导航卫星系统(global navigation satellite system，GNSS)完成时间同步，并且根据预定义的方式，确定多个时刻。具体地，在网络设备和终端设备根据GNSS进行时间同步的情况下，预定义该多个时刻的一个时刻为0时0分0秒。那么终端设备和网络设备可以根据GNSS来确定该时刻，即为0时0分0秒。类似地，多个时刻中的其他时刻的确定方式与之类似。
再例如，上述示例1和示例2中，将多个时间窗替换为多个时刻，也可以将时间窗的起始时刻理解为该时间窗替换后的时刻。例如，如图6中的(a)所示，当时间窗替换为一个时刻时，网络设备可以在该时刻发送公共信息，终端设备也可以在该时刻检测公共信息。
本申请实施例，在多个时间窗内，网络设备可以发送公共信息，终端设备可以检测公共信息，且多个时间窗的时长小于公共信息的传输周期，因此终端设备不需要在一个传输周期的时长内持续检测，就能够确定在当前频域位置是否能检测到公共信息，减少了终端设备检测的时间，降低终端设备盲检测的能耗，也能提升终端设备检测公共信息的效率。
进一步地，网络设备在调整公共信息的传输周期时，允许不同的频率单元对应的公共信息的传输周期不同，可以通过增大公共信息的传输周期，降低公共信息的开销，进而降低网络设备的能耗。从而本方案可以在不影响用户体验的同时，实现降低网络设备的能耗。
图7是本申请实施例提供的一种通信装置500的示意图。该装置500包括收发单元510，收发单元510可以用于实现相应的通信功能。收发单元510还可以称为通信接口或通信单元。
可选地，该装置500还可以包括处理单元520，处理单元520可以用于进行数据处理。
可选地，该装置500还包括存储单元，该存储单元可以用于存储指令和/或数据，处理单元520可以读取存储单元中的指令和/或数据，以使得装置实现前述各个方法实施例中通信设备(如终端设备，又如网络设备)执行的动作。
该装置500可以用于执行上文各个方法实施例中通信设备(如终端设备，又如网络设备)所执行的动作，这时，该装置500可以为通信设备(如终端设备，又如网络设备)的组成部件，收发单元510用于执行上文方法实施例中通信设备(如终端设备，又如网络设备)侧的收发相关的操作，处理单元520用于执行上文方法实施例中通信设备(如终端设备，又如网络设备)侧的处理相关的操作。
作为一种设计，该装置500用于执行上文各个方法实施例中终端设备所执行的动作。
一种可能的实现方式，收发单元510，用于在第一频率单元接收来自网络设备的第一信息，该第一信息用于指示第一周期，该第一周期用于在第二频率单元检测公共信息；根据该第一周期在该第二频率单元检测公共信息。处理单元520，还用于根据该第一周期在该第二频率单元检测公共信息。
可选地，该第一信息还用于指示该第一周期对应的时间窗，处理单元520，具体用于在该第一周期对应的时间窗内，根据该第一周期在该第二频率单元检测公共信息。
可选地，收发单元510，还用于在根据该第一周期未检测到公共信息的情况下，根据该第二周期在该第二频率单元检测公共信息。
可选地，所述第一信息还用于指示所述第一周期对应的时间窗，该处理单元520，具体用于在所述第一周期对应的时间窗内，根据所述第一周期在所述第二频率单元检测所述公共信息。
可选地，所述第一信息还用于指示所述第二频率单元的标识；该处理单元520，具体用于根据所述第二频率单元的标识和所述第一周期在所述第二频率单元检测所述公共信息。
可选地，在根据所述第一周期未检测到所述公共信息的情况下，该处理单元520，还用于根据所述第二周期在所述第二频率单元检测所述公共信息。
另一种可能的实现方式，处理模块520，用于确定多个时间窗，该多个时间窗用于检测来自网络设备的公共信息，该多个时间窗内每个时间窗的时长小于公共信息的传输周期；该处理模块520，还用于在该时间窗中的第一时间窗内检测该公共信息。
可选地，该处理模块520，具体用于根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
可选地，当在该多个时间窗内以及第一频域位置未检测到公共信息的情况下，该处理模块520，还用于根据该多个时间窗在第二频域位置检测公共信息。
该装置500可实现对应于根据本申请实施例的方法实施例中的终端设备执行的步骤或者流程，该装置500可以包括用于执行图2或图3或图4所示实施例中的终端设备执行的方法的单元。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
作为另一种设计，该装置500用于执行上文各个方法实施例中网络设备所执行的动作。
一种可能的实现方式，收发单元510，用于在第一频率单元向终端设备发送第一信息，所述第一信息用于指示公共信息传输的第一周期；收发单元510，还用于根据所述第一周期在第二频率单元发送所述公共信息。
另一种可能的实现方式，处理单元520，用于在至少两个周期中确定第三周期，所述至少两个周期均为公共信息的传输周期；收发单元510，用于根据所述第三周期在第三频率单元向终端设备发送所述公共信息。
可选地，收发单元510，具体用于在所述第三周期对应的时间窗内，根据所述第三周 期在所述第三频率单元向终端设备发送所述公共信息。
可选地，收发单元510，具体用于根据所述第三频率单元的标识和所述第三周期在所述第三频率单元向终端设备发送所述公共信息。
另一种可能的实现方式，处理单元520，用于确定多个时间窗，该多个时间窗用于向终端设备发送公共信息，该多时间窗的时长小于公共信息的传输周期；收发单元510，用于在该时间窗中的第一时间窗内向该终端设备发送公共信息。
可选地，该处理单元520，具体用于根据第五周期和多个第一时刻确定该多个时间窗的起始时间，该第五周期的时长与该多个时间窗中相邻的两个时间窗的间隔相等，该第五周期的时长等于该公共信息的传输周期的整数倍，该多个第一时刻为终端设备检测该公共信息的候选时刻，或者，该多个第一时刻为网络设备周期性发送公共信息的候选时刻。
该装置500可实现对应于根据本申请实施例的方法实施例中的网络设备执行的步骤或者流程，该装置500可以包括用于执行图2或图3或图4所示实施例中网络设备执行的方法的单元。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，这里的装置500以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置500可以具体为上述实施例中的终端设备，可以用于执行上述各方法实施例中与终端设备对应的各个流程和/或步骤，或者，装置500可以具体为上述实施例中的网络设备，可以用于执行上述各方法实施例中与网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置500具有实现上述方法中终端设备所执行的相应步骤的功能，或者，上述各个方案的装置500具有实现上述方法中网络设备所执行的相应步骤的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如收发单元可以由收发机替代(例如，收发单元中的发送单元可以由发送机替代，收发单元中的接收单元可以由接收机替代)，其它单元，如处理单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发单元510还可以是收发电路(例如可以包括接收电路和发送电路)，处理单元可以是处理电路。
需要指出的是，图7中的装置可以是前述实施例中的网元或设备，也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。在此不做限定。
图8是本申请实施例提供的另一种通信装置600的示意图。该装置600包括处理器610，处理器610与存储器620耦合，存储器620用于存储计算机程序或指令和/或数据，处理器610用于执行存储器620存储的计算机程序或指令，或读取存储器620存储的数据， 以执行上文各方法实施例中的方法。
可选地，处理器610为一个或多个。
可选地，存储器620为一个或多个。
可选地，该存储器620与该处理器610集成在一起，或者分离设置。
可选地，如图8所示，该装置600还包括收发器1030，收发器1030用于信号的接收和/或发送。例如，处理器610用于控制收发器1030进行信号的接收和/或发送。
作为一种方案，该装置600用于实现上文各个方法实施例中由终端设备执行的操作。
例如，处理器610用于执行存储器620存储的计算机程序或指令，以实现上文各个方法实施例中终端设备的相关操作。例如，图2或图3或图4所示实施例中的终端设备执行的方法。
作为一种方案，该装置600用于实现上文各个方法实施例中由网络设备执行的操作。
例如，处理器610用于执行存储器620存储的计算机程序或指令，以实现上文各个方法实施例中网络设备的相关操作。例如，图2或图3或图4所示实施例中的网络设备执行的方法。
应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器和/或非易失性存储器。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)。例如，RAM可以用作外部高速缓存。作为示例而非限定，RAM包括如下多种形式：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)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述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。
图9是本申请实施例提供的芯片系统700的示意图。该芯片系统700(或者也可以称为处理系统)包括逻辑电路710以及输入/输出接口(input/output interface)720。
其中，逻辑电路710可以为芯片系统700中的处理电路。逻辑电路710可以耦合连接存储单元，调用存储单元中的指令，使得芯片系统700可以实现本申请各实施例的方法和 功能。输入/输出接口720，可以为芯片系统700中的输入输出电路，将芯片系统700处理好的信息输出，或将待处理的数据或信令信息输入芯片系统700进行处理。
具体地，例如，若终端设备安装了该芯片系统700，逻辑电路710与输入/输出接口720耦合，逻辑电路710可通过输入/输出接口720向网络设备发现消息，该消息可以为逻辑电路710根据生成的；或者输入/输出接口720可将来自网络设备的第一信息输入至逻辑电路710进行处理。又如，若网络设备安装了该芯片系统700，逻辑电路710与输入/输出接口720耦合，逻辑电路710可通过输入/输出接口720向终端设备发送第一信息，该第一信息可以为逻辑电路710生成的；或者输入/输出接口720可将来自终端设备的消息输入至逻辑电路710进行处理。
作为一种方案，该芯片系统700用于实现上文各个方法实施例中由终端设备执行的操作。
例如，逻辑电路710用于实现上文方法实施例中由终端设备执行的处理相关的操作，如，图2或图3或图4所示实施例中的终端设备执行的处理相关的操作；输入/输出接口720用于实现上文方法实施例中由终端设备执行的发送和/或接收相关的操作，如，图2或图3或图4所示实施例中的终端设备执行的发送和/或接收相关的操作。
作为另一种方案，该芯片系统700用于实现上文各个方法实施例中由网络设备执行的操作。
例如，逻辑电路710用于实现上文方法实施例中由网络设备执行的处理相关的操作，如，图2或图3或图4所示实施例中的网络设备执行的处理相关的操作；输入/输出接口720用于实现上文方法实施例中由网络设备执行的发送和/或接收相关的操作，如，图2或图3或图4所示实施例中的网络设备执行的发送和/或接收相关的操作。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述各方法实施例中由终端设备或网络设备执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由终端设备或网络设备执行的方法。
本申请实施例还提供一种计算机程序产品，包含指令，该指令被计算机执行时以实现上述各方法实施例中由终端设备或网络设备执行的方法。
本申请实施例还提供一种通信系统，该通信系统包括上文各实施例中的终端设备和网络设备。例如，该系统包含图2或图3或图4所示实施例中的终端设备和网络设备。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，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。此外，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。
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程序指令时，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。例如，所述计算机可以是个人计算机，服务器，或者网络设备等。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(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，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD)等。例如，前述的可用介质包括但不限于：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (52)

  1. 一种通信方法，由终端设备执行，其特征在于，包括：
    在第一频率单元接收来自网络设备的第一信息，所述第一信息用于指示公共信息传输的第一周期；
    根据所述第一周期在第二频率单元检测所述公共信息。
  2. 根据权利要求1所述的方法，其特征在于，
    所述公共信息用于初始接入所述网络设备。
  3. 根据权利要求1或2所述的方法，其特征在于，
    所述第一周期的时长大于20ms。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一信息还用于指示所述第一周期对应的时间窗，所述根据所述第一周期在第二频率单元检测所述公共信息，包括：在所述第一周期对应的时间窗内，根据所述第一周期在所述第二频率单元检测所述公共信息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一信息还用于指示所述第二频率单元的标识；所述根据所述第一周期在第二频率单元检测所述公共信息，包括：根据所述第二频率单元的标识和所述第一周期在所述第二频率单元检测所述公共信息。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，
    所述第一信息还用于指示所述公共信息传输的第二周期。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    在根据所述第一周期未检测到所述公共信息的情况下，根据所述第二周期在所述第二频率单元检测所述公共信息。
  8. 一种通信方法，由网络设备执行，其特征在于，包括：
    在第一频率单元向终端设备发送第一信息，所述第一信息用于指示公共信息传输的第一周期；
    根据所述第一周期在第二频率单元发送所述公共信息。
  9. 根据权利要求8所述的方法，其特征在于，
    所述公共信息用于所述终端设备初始接入所述网络设备。
  10. 根据权利要求8或9所述的方法，其特征在于，
    所述第一周期的时长大于20ms。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，
    所述第一信息还用于指示以下至少一项：所述第一周期对应的时间窗、所述第二频率单元的标识。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，
    所述第一信息还用于指示所述公共信息传输的第二周期。
  13. 一种通信方法，由终端设备执行，其特征在于，
    在至少两个周期中确定第三周期，所述至少两个周期均为公共信息的传输周期；
    根据所述第三周期在第三频率单元检测所述公共信息。
  14. 根据权利要求13所述的方法，其特征在于，
    所述至少两个周期中的每个周期均为所述第三频率单元上公共信息的传输周期；或者，所述至少两个周期包括在所述第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
  15. 根据权利要求13或14所述的方法，其特征在于，
    所述公共信息用于初始接入所述网络设备。
  16. 根据权利要求13至15中任一项所述的方法，其特征在于，
    所述第三周期的时长大于20ms。
  17. 根据权利要13至16中任一项所述的方法，其特征在于，所述根据所述第三周期在第三频率单元检测所述公共信息，包括：在所述第三周期对应的时间窗内，根据所述第三周期在所述第三频率单元检测所述公共信息。
  18. 根据权利要求13至17中任一项所述的方法，其特征在于，所述根据所述第三周期在第三频率单元检测所述公共信息，包括：根据所述第三频率单元的标识和所述第三周期在所述第三频率单元检测所述公共信息。
  19. 根据权利要求13至18中任一项所述的方法，其特征在于，
    所述至少两个周期还包括第四周期，所述第四周期用于在所述第三频率单元检测所述公共信息。
  20. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    在根据所述第三周期在所述第三频率单元未检测到公共信息的情况下，根据所述第四周期在所述第三频率单元检测所述公共信息。
  21. 一种通信方法，由网络设备执行，其特征在于，
    在至少两个周期中确定第三周期，所述至少两个周期均为公共信息的传输周期；
    根据所述第三周期在第三频率单元向终端设备发送所述公共信息。
  22. 根据权利要求21所述的方法，其特征在于，
    所述至少两个周期中的每个周期均为所述第三频率单元上公共信息的传输周期；或者，所述至少两个周期包括在所述第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
  23. 根据权利要求21或22所述的方法，其特征在于，
    所述公共信息用于所述终端设备初始接入所述网络设备。
  24. 根据权利要求21至23中任一项所述的方法，其特征在于，
    所述第三周期的时长大于20ms。
  25. 根据权利要21至24中任一项所述的方法，其特征在于，所述根据所述第三周期在第三频率单元向终端设备发送所述公共信息，包括：在所述第三周期对应的时间窗内，根据所述第三周期在所述第三频率单元向终端设备发送所述公共信息。
  26. 根据权利要求21至24中任一项所述的方法，其特征在于，所述根据所述第三周期在第三频率单元向终端设备发送所述公共信息，包括：根据所述第三频率单元的标识和所述第三周期在所述第三频率单元向终端设备发送所述公共信息。
  27. 根据权利要求21至26中任一项所述的方法，其特征在于，
    所述至少两个周期还包括第四周期，所述第四周期用于在所述第三频率单元发送所述公共信息。
  28. 一种通信方法，其特征在于，包括：
    网络设备在第一频率单元向终端设备发送第一信息，所述第一信息用于指示公共信息传输的第一周期；
    所述终端设备接收所述第一信息；
    所述网络设备根据所述第一周期在第二频率单元发送所述公共信息；
    所述终端设备根据所述第一周期在所述第二频率单元检测所述公共信息。
  29. 根据权利要求28所述的方法，其特征在于，
    所述公共信息用于初始接入所述网络设备。
  30. 根据权利要求28或29所述的方法，其特征在于，
    所述第一周期的时长大于20ms。
  31. 根据权利要求28至30中任一项所述的方法，其特征在于，所述第一信息还用于指示所述第一周期对应的时间窗，
    所述终端设备根据所述第一周期在所述第二频率单元检测所述公共信息，包括：在所述第一周期对应的时间窗内，所述终端设备根据所述第一周期在所述第二频率单元检测所述公共信息。
  32. 根据权利要求28至31中任一项所述的方法，其特征在于，所述第一信息还用于指示所述第二频率单元的标识；
    所述终端设备根据所述第一周期在所述第二频率单元检测所述公共信息，包括：所述终端设备根据所述第二频率单元的标识和所述第一周期在所述第二频率单元检测所述公共信息。
  33. 根据权利要求28至32中任一项所述的方法，其特征在于，
    所述第一信息还用于指示所述公共信息传输的第二周期。
  34. 根据权利要求33所述的方法，其特征在于，所述方法还包括：
    在所述终端设备根据所述第一周期未检测到所述公共信息的情况下，所述终端设备根据所述第二周期在所述第二频率单元检测所述公共信息。
  35. 一种通信方法，其特征在于，
    终端设备和网络设备在至少两个周期中确定第三周期，所述至少两个周期均为公共信息的传输周期；
    所述网络设备根据所述第三周期在第三频率单元向所述终端设备发送所述公共信息；
    所述终端设备根据所述第三周期在所述第三频率单元检测所述公共信息。
  36. 根据权利要求35所述的方法，其特征在于，
    所述至少两个周期中的每个周期均为所述第三频率单元上公共信息的传输周期；或者，所述至少两个周期包括在所述第三频率单元上公共信息的传输周期和在第四频率单元上公共信息的传输周期。
  37. 根据权利要求35或36所述的方法，其特征在于，
    所述公共信息用于所述终端设备初始接入所述网络设备。
  38. 根据权利要求35至37中任一项所述的方法，其特征在于，
    所述第三周期的时长大于20ms。
  39. 根据权利要35至38中任一项所述的方法，其特征在于，所述网络设备根据所述第三周期在第三频率单元向所述终端设备发送所述公共信息，所述终端设备根据所述第三周期在所述第三频率单元检测所述公共信息，包括：
    所述网络设备在所述第三周期对应的时间窗内，根据所述第三周期在所述第三频率单元向所述终端设备发送所述公共信息，所述终端设备在所述第三周期对应的时间窗内，根据所述第三周期在所述第三频率单元检测所述公共信息。
  40. 根据权利要求35至39中任一项所述的方法，其特征在于，所述网络设备根据所述第三周期在第三频率单元向所述终端设备发送所述公共信息，所述终端设备根据所述第三周期在所述第三频率单元检测所述公共信息，包括：
    所述网络设备根据所述第三频率单元的标识和所述第三周期在所述第三频率单元向终端设备发送所述公共信息，所述网络设备根据所述第三频率单元的标识和所述第三周期在所述第三频率单元检测所述公共信息。
  41. 根据权利要求35至40中任一项所述的方法，其特征在于，
    所述至少两个周期还包括第四周期，所述第四周期用于所述网络设备在所述第三频率单元发送所述公共信息以及所述终端设备在所述第三频率单元检测所述公共信息。
  42. 根据权利要求41所述的方法，其特征在于，所述方法还包括：
    在所述终端设备根据所述第三周期在所述第三频率单元未检测到公共信息的情况下，所述终端设备根据所述第四周期在所述第三频率单元检测所述公共信息。
  43. 一种通信装置，其特征在于，包括具有实现如权利要求1至7中任一项所述的方法，或者如权利要求8至12中任一项所述的方法，或者如权利要求13至20中任一项所述的方法，或者如权利要求21至27中任一项所述的方法的功能的单元。
  44. 一种通信装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机程序，以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，或者以使得所述装置执行如权利要求8至12中任一项所述的方法。
  45. 一种通信装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求13至20中任一项所述的方法，或者以使得所述装置执行如权利要求21至27中任一项所述的方法。
  46. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至7中任意一项所述的方法，或者以使得所述计算机执行如权利要求8至12中任一项所述的方法，或者以使得所述计算机执行如权利要求13至20中任一项所述的方法，或者以使得所述计算机执行如权利要求21至27中任一项所述的方法。
  47. 一种计算机程序产品，其特征在于，所述计算机程序产品包括用于执行如权利要求1至7中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权利要求8至12中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权利要求13至20中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权 利要求21至27中任一项所述的方法的指令。
  48. 一种通信系统，其特征在于，包括终端设备和网络设备，
    其中，所述终端设备用于执行如权利要求1至7中任一项所述的方法，所述网络设备用于执行如权利要求8至12中任一项所述的方法，或者，所述终端设备用于执行如权利要求13至20中任一项所述的方法，所述网络设备用于执行如权利要求21至27中任一项所述的方法。
  49. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求1至7中任一项所述的方法。
  50. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求8至12中任一项所述的方法。
  51. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求13至20中任一项所述的方法。
  52. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求21至27中任一项所述的方法。
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