WO2023071968A1 - Communication method and communication apparatus - Google Patents

Communication method and communication apparatus Download PDF

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Publication number
WO2023071968A1
WO2023071968A1 PCT/CN2022/126930 CN2022126930W WO2023071968A1 WO 2023071968 A1 WO2023071968 A1 WO 2023071968A1 CN 2022126930 W CN2022126930 W CN 2022126930W WO 2023071968 A1 WO2023071968 A1 WO 2023071968A1
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WIPO (PCT)
Prior art keywords
ssb
time
frequency
common channel
frequency resource
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PCT/CN2022/126930
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French (fr)
Chinese (zh)
Inventor
李伟
吴环宇
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华为技术有限公司
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Publication of WO2023071968A1 publication Critical patent/WO2023071968A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present application relates to the communication field, and more specifically, to a communication method and a communication device.
  • the business channel of the fifth generation (5th Generation, 5G) communication can avoid partial interference through time domain and frequency domain scheduling, antenna technology and other methods.
  • 5G frequency band With the expansion of the 5G frequency band to the low frequency band, there will be more and more interference outside the system, such as high-power transmission signals from broadcasting and TV towers, various very high frequency (VHF)/ultra-high frequency (ultra-high frequency) High frequency, UHF) wave radio station temporary burst use caused by interference within the frequency band, malicious frequency hopping blocking interference in some areas, etc.
  • VHF very high frequency
  • UHF ultra-high frequency
  • the terminal will not be able to receive system messages, and then will not be able to camp on the network, initiate access, and perform normal resource allocation and scheduling, resulting in failure of the entire system.
  • the present application provides a communication method and device, which can realize the normal operation of the communication system when there is interference in the working frequency band, and improve the anti-interference ability of the communication system.
  • a communication method is provided, and the method may be executed by a network device, or may also be executed by a chip or a circuit configured in the network device, which is not limited in the present application.
  • the method includes: sending a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel; sending a second synchronization signal block SSB, where the second SSB is used to indicate the time-frequency position of the redundant common channel , the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
  • the network device will not only send the first SSB to the terminal device, but also send the second SSB, so that the terminal device can pass the second SSB when the position where the first SSB is transmitted or the main public channel interferes.
  • Access to the network with redundant public channels can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
  • the method further includes: determining a location of a second time-frequency resource, where the second time-frequency resource is used to send the second SSB, and the second time-frequency resource and The first time-frequency resources do not completely overlap, and the first time-frequency resources are used to send the first SSB.
  • the time-frequency resource for sending the second SSB is different from the time-frequency resource for sending the first SSB, so that in the case of interference with the first time-frequency resource, the second SSB can be received through the second time-frequency resource, and passed Redundant public channels are connected to the network, which can improve the anti-interference ability of the public channels, and realize the normal operation of the communication system when there is interference in the working frequency band.
  • the determining the position of the second time-frequency resource includes: determining the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range .
  • the network device will not only send the first SSB, but also select the time-frequency position where no interference occurs to send the second SSB according to the spectrum scanning results, so that when the terminal device fails to obtain the information of the first SSB, it can also obtain Information of the second SSB.
  • the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
  • the method further includes: scheduling terminal devices according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
  • the method further includes: acquiring configuration information, where the configuration information includes frequency hopping parameters; determining the location of the second time-frequency resource includes: determining according to the frequency hopping parameters The location of the second time-frequency resource.
  • the network device will not only send the first SSB, but also dynamically send multiple second SSBs according to the frequency hopping parameters, so that the terminal device can also obtain at least one second SSB when it fails to obtain the information of the first SSB Information.
  • the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
  • the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • a communication method is provided, and the method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in the present application.
  • the method includes: receiving the second synchronization signal block SSB; determining the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel, and the time-frequency position of the main common channel The location is determined from the first SSB.
  • the network device will not only send the first SSB to the terminal device, but also send the second SSB, so that the terminal device can pass the second SSB when the position where the first SSB is transmitted or the main public channel interferes.
  • Access to the network with redundant public channels can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
  • the method further includes: acquiring a frequency hopping parameter; determining a position of a second time-frequency resource according to the frequency hopping parameter, and the second time-frequency resource is used to receive the second SSB.
  • the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
  • the method further includes: receiving the first SSB on the first time-frequency resource, where the second time-frequency resource does not completely overlap with the first time-frequency resource.
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • a communication device may be a network device, or may also be a chip or a circuit configured in the network device, which is not limited in the present application.
  • the device includes: a transceiver unit, configured to send a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel; the transceiver unit is also configured to: send a second SSB, where the second SSB is used for Indicates the time-frequency position of the redundant common channel, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
  • a transceiver unit configured to send a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel
  • the transceiver unit is also configured to: send a second SSB, where the second SSB is used for Indicates the time-frequency position of the redundant common channel, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
  • the communication device further includes: a processing unit configured to determine a position of a second time-frequency resource, where the second time-frequency resource is used to send the second SSB, the The second time-frequency resource does not completely overlap with the first time-frequency resource, and the first time-frequency resource is used for sending the first SSB.
  • the processing unit is specifically configured to: determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range.
  • the processing unit is further configured to: schedule the terminal device according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
  • the processing unit is further configured to: obtain configuration information, and the configuration information includes a frequency hopping parameter; the processing unit is specifically configured to: determine the second time frequency according to the frequency hopping parameter The location of the resource.
  • the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • a communication device may be a terminal device, or may also be a chip or a circuit configured in the terminal device, which is not limited in the present application.
  • the device includes: a transceiver unit for receiving the second synchronization signal block SSB; a processing unit for determining the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel and the time-frequency position of the main common channel The time-frequency positions are different, and the time-frequency position of the main common channel is determined according to the first SSB.
  • the processing unit is further configured to: acquire a frequency hopping parameter; determine a position of a second time-frequency resource according to the frequency hopping parameter, and the second time-frequency resource is used for Receive the second SSB.
  • the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
  • the transceiver unit is further configured to: receive the first SSB on the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource .
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • the present application provides a communication device, which includes: at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program stored in the at least one memory or instructions, so that the device executes the method in any one possible implementation manner of the above-mentioned first aspect to the second aspect and the first aspect to the second aspect.
  • the present application provides a computer-readable medium, on which a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer can realize the above-mentioned first aspect to The second aspect and the method in any possible implementation manner of the first aspect to the second aspect.
  • the present application provides a computer program product, including a computer program or an instruction, which is used to realize any of the above-mentioned first to second aspects and the first to second aspects when the computer program or instruction is executed.
  • a method in one possible implementation is provided.
  • the present application provides a chip system, including: a processor, the processor is used to execute the computer programs or instructions in the memory, so that the chip system implements the above first to second aspects and the first to second aspects The method in any possible implementation manner in the second aspect.
  • a communication device which includes a processor, and the processor is configured to execute the method in any possible implementation manner of the first aspect to the second aspect and any one of the first aspect to the second aspect.
  • a communication system including the aforementioned terminal device and network device.
  • Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable.
  • Fig. 2 is a schematic diagram of contents included in an SSB symbol provided by an embodiment of the present application.
  • Fig. 3 is a schematic diagram of two kinds of blocking interference provided by the embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • Fig. 5 is a schematic diagram of time-domain positions of a first SSB and a second SSB provided by the present application.
  • Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Fig. 8 is a structural block diagram of a communication device provided according to an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex) , TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5th Generation, 5G) Mobile Communication System or New Air Interface ( new radio, NR).
  • LTE Long Term Evolution
  • FDD frequency division duplex
  • TDD Time division duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G mobile communication system may be a non-standalone network (non-standalone, NSA) or a standalone network (standalone, SA).
  • the technical solution provided by this application can also be applied to machine type communication (machine type communication, MTC), inter-machine communication long-term evolution technology (long term evolution-machine, LTE-M), device-to-device (device-to-device, D2D) A network, a machine to machine (M2M) network, an Internet of things (IoT) network, or other networks.
  • MTC machine type communication
  • LTE-M long term evolution-machine
  • D2D device-to-device
  • M2M machine to machine
  • IoT Internet of things
  • the IoT network may include, for example, the Internet of Vehicles.
  • the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and Infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian (vehicle to pedestrian, V2P) or vehicle to network (vehicle to network, V2N) communication, etc.
  • vehicle to vehicle vehicle to vehicle
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • V2N vehicle to network
  • 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 and the like. This application is not limited to this.
  • a terminal device may also be called a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user device.
  • a terminal device may be a device that provides voice/data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in self driving (self driving), wireless in remote medical (remote medical) Terminals, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home (for example, TV home appliances, smart boxes, game consoles), cellular phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (PDAs) ), handheld devices with wireless communication functions, computing devices or other processing devices
  • wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the terminal device may also be a terminal device in an Internet of Things (Internet of things, IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and object interconnection.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.
  • NB narrow band
  • the terminal device can also be a vehicle or a complete vehicle, and communication can be realized through the Internet of Vehicles, or it can be a component located in the vehicle (for example, placed in the vehicle or installed in the vehicle), that is, the vehicle terminal device , on-board module or on-board unit (OBU).
  • OBU on-board module or on-board unit
  • terminal equipment can also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (partial terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .
  • the network device may be any device with a wireless transceiver function.
  • the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G
  • 5G such
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and realizes the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer and physical (physical, PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU and CU.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the network device provides services for the cell, and the terminal device communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network device.
  • the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to a small cell, where the small cell can include: a metro cell, a micro cell, a pico cell, a femto cell, etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • FIG. 1 is a schematic diagram of a communication system 100 applicable to the communication method of the embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. 1 .
  • the network device 110 and the terminal device 120 may communicate through a wireless link.
  • Each communication device, such as the network device 110 or the terminal device 120 may be configured with multiple antennas.
  • the configured plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, communication between various communication devices in the communication system, and between the network device 110 and the terminal device 120 may be performed through the multi-antenna technology.
  • FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may also include other network devices or other terminal devices, which are not shown in FIG. 1 .
  • FIG. 1 is only an application scenario of the embodiment of the present application, and the method provided in the embodiment of the present application is not limited to the communication between the network device and the terminal device, and can also be applied to the communication between the terminal device and the terminal device. communication etc. This application does not limit the scenarios to which this method is applied. In the embodiments shown below, the method provided in the embodiments of the present application is described in detail by taking the interaction between the network device and the terminal device as an example for ease of understanding and description.
  • Synchronization signal/physical broadcast channel block (SSB)
  • SSB can also be called a synchronization signal/physical broadcast channel (physical broadcast channel, PBCH) block (block), which consists of a primary synchronization signal (Primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a physical broadcast channel ( physical broadcasting channel (PBCH), occupying 4 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols in the time domain.
  • PBCH physical broadcast channel
  • Fig. 2 is a schematic diagram of contents included in an SSB symbol provided by an embodiment of the present application.
  • the SSB bandwidth is 20 resource blocks (resource block, RB), including 240 subcarriers (subcarrier).
  • the first symbol carries PSS, which includes 127 subcarriers, that is, the PSS sequence length is 127, and the PSS only occupies the middle part of the SSB frequency domain, and no other data or control information is sent on both sides; the second and fourth symbols are
  • the broadcast channel physical broadcasting channel, PBCH
  • PBCH physical broadcasting channel
  • the third symbol carries PBCH and SSS at the same time, where the sequence length of SSS is 127 like that of PSS, and both occupy 127 resource elements in the middle of the SSB frequency domain (resource element, RE).
  • Both sides of the SSS use 48 REs to send the PBCH respectively, and there is an interval of 8 and 9 REs between the SSS and the PBCH.
  • Control resource set (CORESET) and search space (search space)
  • the control resource set is a resource set used to transmit downlink control information, and may also be called a control resource region, or a physical downlink control channel resource set.
  • NR Since the system bandwidth in NR is large (frequency range 1 (frequency range 1, FR1) can reach up to 100MHz, and frequency range 2 (frequency range 2, FR2) can reach up to 400MHz, NR combines the frequency band occupied by PDCCH in the frequency domain with the Information such as the number of OFDM symbols occupied in the time domain is encapsulated in the CORESET, and information such as the number of OFDM symbols starting from the PDCCH and the PDCCH monitoring period are encapsulated in the search space.
  • the configuration of the PDCCH includes the configuration and search space of the CORESET According to the configuration of CORESET and search space, candidate PDCCH resources can be determined.
  • control resource set can include time-frequency resources, for example, in the frequency domain, it can be a section of bandwidth, or one or more subbands, etc.; in the time domain, it can be a or multiple OFDM symbols; a control resource set can be continuous or discontinuous resources in the frequency domain, for example, in the frequency domain, the control resource set includes continuous RBs or discontinuous RBs.
  • search spaces consist of A set of search spaces. Unless otherwise specified, search space and search space set are interchangeable and mean the same thing.
  • the control resource set can be understood as a set of resources that may be used for sending the PDCCH; for a terminal device, the resources corresponding to the PDCCH search space of each terminal device belong to the control resource set.
  • the network device may determine the resource used for sending the PDCCH from the control resource set, and the terminal device may determine the PDCCH search space according to the control resource set.
  • the frequency position information of the terminal device scanning the SSB can be defined by a synchronization grid, which represents a series of frequency points that can be used to transmit the SSB.
  • a synchronization grid represents a series of frequency points that can be used to transmit the SSB.
  • Cells need to be established during base station deployment, and each cell needs to have a specific SSB, and the frequency position corresponding to each SSB is the synchronization grid position.
  • the introduction of the synchronization grid concept is mainly to allow terminal equipment to perform corresponding searches at specific frequency points during the cell search process, so as to avoid excessive access delay and energy loss caused by the uncertainty of blind search.
  • 3GPP defines certain frequencies as synchronous grids, CD-SSB is on the synchronous grid, and NCD-SSB may or may not be on the synchronous grid.
  • a sync grid is an absolute frequency position. If there is an SSB in the frequency position of the synchronization grid, it corresponds to the frequency position of the 121st subcarrier among
  • the UE first selects a cell when initially accessing.
  • the UE will search for the SSB on the synchronization grid. If a CD-SSB is found on the synchronization grid, the UE may select the cell corresponding to the CD-SSB as the initial access cell. In addition, the UE will receive the RMSI associated with the CD-SSB (ie SIB1).
  • the BWP is a portion of the bandwidth within the carrier bandwidth.
  • a BWP can be a segment of continuous frequency resources on a carrier.
  • a network device can configure one or more BWPs for a terminal, and bandwidths of different BWPs can be different.
  • the network device can also configure BWPs with different bandwidth sizes for different terminal devices.
  • the network device will send an activation signaling to activate one of the multiple configured BWPs.
  • this BWP is called an active BWP (active BWP)
  • an activated BWP includes an activated downlink (down link, DL) BWP and an activated uplink (up link, UL) BWP.
  • the terminal device sends data and control information in the active UL BWP and receives data and control information in the active DL BWP.
  • one terminal device only supports one activated uplink BWP and/or one downlink BWP.
  • the BWP assigned to the terminal device during initial access is called initial BWP (initial BWP).
  • the value of the initial BWP identifier is 0.
  • the business channel of the fifth generation (5th Generation, 5G) communication can avoid partial interference through time domain and frequency domain scheduling, antenna technology and other methods.
  • 5G frequency band With the expansion of the 5G frequency band to the low frequency band, there will be more and more interference outside the system, such as high-power transmission signals from broadcasting and TV towers, various very high frequency (VHF)/ultra-high frequency (ultra-high frequency) High frequency, UHF) wave radio station temporary burst use caused by interference within the frequency band, malicious frequency hopping blocking interference in some areas, etc.
  • VHF very high frequency
  • UHF ultra-high frequency
  • the terminal will not be able to receive system messages, and then will not be able to camp on the network, initiate access, and perform normal resource allocation and scheduling, resulting in failure of the entire system.
  • FIG. 3 is a schematic diagram of two types of blocking interference provided in the embodiment of the present application.
  • comb blocking interference occurs in the frequency hopping frequency band of the common channel
  • broadband blocking interference occurs in the frequency hopping frequency band of the common channel.
  • the frequency hopping frequency is the frequency range in which the terminal equipment can work.
  • Interference comb blocking interference or broadband blocking interference
  • the frequency hopping frequency band will cause the signal quality of some frequency points to deteriorate at the interference location. If the interference location is a cell The time-frequency position of the public channel will make it impossible for the terminal equipment to perform cell search, which in turn will affect the normal operation of the communication system.
  • the present application provides a communication method and device, which can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
  • Fig. 4 is a schematic block diagram of a communication method provided by an embodiment of the present application.
  • the method 200 shown in FIG. 4 may be executed by the terminal device and the network device shown in FIG. 1 .
  • the network device sends a first SSB, where the first SSB is used to indicate the time-frequency position of the main common channel.
  • the first SSB can also be called the default (default) SSB.
  • the information carried by the first SSB conforms to the definition of the current protocol.
  • the first SSB can also be understood as the one defined by the current protocol and used by the terminal device when performing cell access.
  • the first SSB may indicate the time-frequency position of the main common channel.
  • the time-frequency position of the main common channel includes but not limited to at least one of the first synchronous/physical broadcast channel, the first control channel, and the first access channel.
  • the first synchronization/physical broadcast channel includes a first primary synchronization channel (primary synchronization channel, P-SCH), a first secondary synchronization channel (secondary synchronization channel, S-SCH) and a first PBCH channel
  • the first control channel includes The first physical downlink control channel (physical downlink control channel, PDCCH) and the first physical uplink control channel (physical uplink control channel, PUCCH), the first access channel mainly includes the first physical random access channel (physical random access channel, PRACH).
  • the time-frequency pattern of the first SSB is shown in FIG. 2 , including PSS, SSS and PBCH.
  • PBCH will carry master information block (master information block, MIB) information
  • MIB master information block
  • Table 1 is the cells included in the MIB information, and the specific meaning of each cell.
  • MIB information may indicate the time domain location of CORESET#0. Specifically, CORESET#0 and the first SSB are subcarrier-aligned in the frequency domain position.
  • the ssb-SubcarrierOffset in the MIB is used to indicate the subcarrier offset of the first SSB, and the subcarrier offset is the number of offset subcarriers between the first SSB and a common resource block (common RB, CRB).
  • the pdcch-ConfigSIB1 information element in the MIB has a total of 8 bits, of which ControlResourceSetZero occupies 4 bits, and its value corresponds to an index in a table predefined in the 3GPP protocol.
  • the row where the index is located includes the resource block RB corresponding to CORESET#0
  • the number of symbols, the number of symbols, and the number of RBs offset between CORESET#0 and CRB, according to ssb-SubcarrierOffset and ControlResourceSetZero, the frequency domain position of CORESET#0 can be determined.
  • SearchSpaceZero in the pdcch-ConfigSIB1 information element also occupies 4 bits, which can indicate the time domain position of CORESET#0.
  • the terminal device After determining the time-frequency position of CORESET#0, the terminal device can monitor the schedule system information block 1 (system information block 1, SIB1, also known as remaining minimum system information (RMSI)) on CORESET#0
  • SIB1 system information block 1
  • the PDCCH that is, the first PDCCH
  • the SIB1 information carries the time-frequency position of the PRACH, the initial frequency position of the initial BWP, and the bandwidth size.
  • the SIB1 message includes PRACH-configurationIndex and FrequencyStart information elements, and according to the 38.211 protocol, the time domain information and frequency domain position of the PRACH (that is, the first PRACH) can be determined.
  • the MIB information and SIB information will also include PUCCH resource set configuration information, and the time-frequency position of the common PUCCH (that is, the first PUCCH) can be indicated through the PUCCH configuration information table defined by the protocol.
  • the terminal device may not be able to receive the first SSB, and furthermore, cannot obtain the time-frequency position of the main common channel indicated by the network device through the first SSB.
  • the terminal device when interference occurs on the primary common channel, the terminal device can receive the first SSB, but due to interference in the received signal, the terminal device cannot demodulate the first SSB, and thus cannot determine the primary common channel.
  • the time-frequency position of the channel when interference occurs on the primary common channel, the terminal device can receive the first SSB, but due to interference in the received signal, the terminal device cannot demodulate the first SSB, and thus cannot determine the primary common channel.
  • the time-frequency position of the channel when interference occurs on the primary common channel, the terminal device can receive the first SSB, but due to interference in the received signal, the terminal device cannot demodulate the first SSB, and thus cannot determine the primary common channel. The time-frequency position of the channel.
  • the number of transmissions of the first SSB in the time domain conforms to the definition of the current standard, that is, the maximum number of the first SSB in the time domain is related to beam scanning, and the number of time domains is small at low frequencies, for example, below 3GHz
  • a maximum of 4 first SSBs can be defined, occupying the first 2 time slots in the time domain.
  • a maximum of 8 first SSBs can be defined, occupying the first 4 time slots in the time domain.
  • the network device sends the second SSB, and correspondingly, the terminal device receives the second SSB.
  • the second SSB can be understood as an SSB configured redundantly on the basis of the first SSB, which can also be used for terminal device cell access, and the second SSB can also be called a redundant SSB, a backup SSB, etc.
  • the two SSBs can be used to indicate the time-frequency position of the redundant common channel.
  • the redundant common channel includes at least one of a second synchronization/physical broadcast channel, a second control channel, and a second access channel.
  • the second synchronous/physical broadcast channel includes the second P-SCH, the second S-SCH and the second PBCH channel
  • the second control channel includes the second PDCCH and the second PUCCH
  • the second access channel mainly includes the second PRACH .
  • the second SSB and the first SSB may have the same time-frequency pattern, for example, as shown in FIG. 2 , including PSS, SSS and PBCH.
  • the PSS and SSS in the second SSB can be used for time-frequency synchronization of the terminal equipment, and the PBCH in the second SSB will also carry MIB information, and the information elements included in the MIB information can be the same as those included in the MIB information in the first SSB
  • the cells are the same, ie as shown in Table 1.
  • the information carried by the second SSB can indicate the time-frequency position of the redundant common channel, including redundant CORESET#0, redundant PDCCH (that is, the second PDCCH), redundant PRACH (that is, is the second PRACH), the time-frequency position of the redundant common PUCCH (that is, the second PUCCH), and the starting frequency position and bandwidth size of the redundant initial BWP.
  • redundant CORESET#0 can be used to send system messages and paging messages
  • redundant CORESET#0 is the frequency resource set of the PDCCH for transmitting message 2 (Msg2) and message 4 (Msg4) in the random access procedure
  • redundant PRACH is used for the terminal device to send message 1 (Msg1) during the access process.
  • the redundant initial BWP includes the initial DL BWP and the initial UL BWP.
  • the RMSI, Msg2, and Msg4 sent by the network device to the terminal device must be transmitted within the initial activation DL BWP.
  • the feedback information of message 3 (Msg3) and Msg4 sent by the terminal device to the network device must be transmitted in the initial activation UL BWP, and the PRACH resource during the initial access process of the terminal device must also be located in the initial activation UL BWP.
  • the specific indication methods of the first SSB and the second SSB are the same, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel, which can be understood as the information carried by the second SSB and the first SSB The specific content is different.
  • the foregoing is only an example, and the specific manner in which the second SSB indicates the time-frequency position of the redundant common channel may refer to technologies or protocols developed by those skilled in the art, and this application does not make a limitation thereto.
  • the second SSB is aligned with the subcarrier.
  • the center frequency point of the second SSB may be identified by the GSCN, in other words, the second SSB is aligned with the synchronization grid.
  • the calculation method of the center frequency position of the second SSB meets the requirements of the standard TS38.104.
  • the second SSB can be sent at the same period as the first SSB, and after the first SSB time domain and beam are sent, the second SSB is sent in a similar beam and time domain mapping manner.
  • the period information of the second SSB can be defined by the parameter ssb-periodicityServingCell in the SIB1 information element ServingCellConfigCommonSIB, and the time domain pattern (Pattern) can be in different slot positions.
  • Fig. 5 is a schematic diagram of time-domain positions of a first SSB and a second SSB provided by the present application.
  • first SSB taking the frequency band less than 2.4 GHz as an example, there are 4 first SSBs in total, and the 4 first SSBs form the first SSB block (block), and the first SSB block occupies a time slot (slot) in the time domain.
  • the first SSB block corresponds to a 4T4R beam
  • the SSB index (Index) corresponding to each SSB is 0, 1, 2, 3, namely SSB#0, SSB#1, SSB#2, SSB# 3.
  • the network device can associate a transmit location for each SSB.
  • SSB#0 is located in the 2nd to 5th symbols of slot 0
  • SSB#1 is located in the 8th to 11th symbols of slot
  • SSB#2 is located in the 2nd to 5th symbols of slot 1
  • SSB#3 is located in the The 8th to 11th symbols of slot 1, that is, the starting symbols of SSB#0, SSB#1, SSB#2, and SSB#3 are 2, 8, 16, and 22, respectively.
  • the second SSB block occupies time slot 2 and time slot 3, and each SSB in the second SSB block corresponds to the SSB Indexes are 4, 5, 6, 7, namely SSB#4, SSB#5, SSB#6, SSB#7, SSB#4 is located in the 2nd to 5th symbols of slot 2, SSB#5 is located in the slot 2
  • the 8th to 11th symbols, SSB#6 is located in the 2nd to 5th symbols of time slot 3
  • SSB#7 is located in the 8th to 11th symbols of time slot 3, that is, SSB#4, SSB#5, SSB#6,
  • the starting symbols of SSB#7 are 30, 36, 44, 50 respectively.
  • each SSB block can be independently decoded, and after the terminal device parses out an SSB, it can obtain information such as cell ID, system frame number (SFN), SSB index, and the SSB index is similar to the beam ID.
  • SFN system frame number
  • SSB index is similar to the beam ID.
  • a maximum of 4 SSB blocks can be defined for frequency bands below 3 GHz
  • a maximum of 8 SSB blocks can be defined for frequency bands from 3 GHz to 6 GHz
  • a maximum of 64 SSB blocks can be defined for frequency bands above 6 GHz. piece.
  • the terminal device determines the time-frequency position of the redundant common channel according to the second SSB.
  • the terminal device After receiving the second SSB, the terminal device will determine the time-frequency position of the redundant common channel according to the information indicated by the second SSB.
  • the second SSB can be used by the terminal device to perform cell access, and the redundant common channel can be used as The backup common channel, when the main common channel interferes, the terminal device uses the redundant common channel to complete the initial access.
  • the terminal device determines the time-frequency position of the redundant common channel, including but not limited to obtaining redundant CORESET#0, redundant PDCCH (that is, the second PDCCH), and redundant PRACH according to the MIB information carried by the second SSB. (that is, the second PRACH), the time-frequency position of the redundant common PUCCH (that is, the second PUCCH), and the starting frequency position and bandwidth size of the redundant initial BWP.
  • the network device will not only send the first SSB to the terminal device, but also send the second SSB. If the terminal device cannot successfully receive or demodulate the first SSB, the terminal device can receive and parse the second SSB, according to The second SSB determines the time-frequency location of the redundant common channel. That is to say, when the main public channel interferes, the terminal equipment can access the network through the redundant public channel, which can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band. Work.
  • the second SSB may also be used by the terminal device to perform time-frequency tracking (or called time-frequency synchronization), beam management (beam management), radio resource management (radio resource management, RRM) measurement, radio link monitoring ( radio link monitoring (RLM) measurement, channel state information (channel state information, CSI) measurement, etc.
  • time-frequency tracking or called time-frequency synchronization
  • beam management beam management
  • radio resource management radio resource management
  • RRM radio link monitoring
  • channel state information channel state information
  • CSI channel state information
  • the method 200 further includes: S240, the network device determines a location of a second time-frequency resource, the second time-frequency resource is used to send the second SSB, and the second SSB is the same as the location of the second SSB used to send the first SSB
  • the first time-frequency resources are different.
  • the network device may determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range.
  • the preset frequency range may be the working frequency range of the network device.
  • the number of second SSBs sent by the network device may be one.
  • the network device can scan the change law of interference and noise floor within the working frequency range for a period of time, and keep no transmission power and no scheduling during the scanning period, that is, only listen but not transmit, according to the granularity of each RB within the frequency range
  • the noise floor of the interference determines the time-frequency position of the redundant common channel.
  • the video position of the redundant common channel does not include the frequency domain resource position with interference and avoids the time slot with interference, and, in the time-frequency position where no interference occurs
  • the resource selects a second time-frequency resource for sending the second SSB. That is to say, the second SSB is sent at the time-frequency position where no interference occurs, and the frequency domain and time domain positions of the redundant common channel are indicated by the second SSB.
  • the network device will not only send the first SSB, but also select a time-frequency position where no interference occurs to send the second SSB according to the spectrum scanning results, so that when the terminal device fails to obtain the information of the first SSB, it will also send the second SSB.
  • the information of the second SSB can be obtained. In this way, the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
  • the method further includes: the network device scheduling the terminal device according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
  • the network equipment since the network equipment configures redundant public channels to the terminal equipment, the network equipment will also arrange uplink and downlink resource scheduling and user resource scheduling according to the occupancy of time domain and frequency domain resources of the main public channel and redundant public channel during resource scheduling. Device scheduling to avoid conflicts with redundant common channel resources.
  • the network device may obtain configuration information from the network management system, where the configuration information includes a frequency hopping parameter, and the location of the second time-frequency resource may be obtained according to the frequency hopping parameter.
  • the frequency hopping parameter may be a frequency hopping sequence.
  • the frequency hopping sequence can also be called a pseudo-random signal, a pseudo-random sequence or a pseudo-random code.
  • the frequency domain position where the second SSB is located can be dynamically changed, and within the frequency domain of the entire broadband cell working bandwidth, avoid Frequency hopping can be performed outside of the frequencies occupied by existing channels. Since the frequency domain position of the second SSB is controlled by a designated pseudo-random sequence, it has pseudo-randomness, and can avoid continuous monitoring and tracking interference.
  • the frequency hopping sequence may be an m-sequence or a Gold sequence, wherein the m-sequence is a sequence with the longest period generated by a linear feedback shift register (linear feedback shift register, LFSR), and the order of the register is n LFSR can output m-sequences of length 2n -1.
  • the Gold sequence is composed of two optimal m-sequence pairs with the same code length and the same code clock rate through modulo 2 addition. an m-sequence.
  • the frequency hopping parameter may also be a frequency hopping period, that is, the frequency domain position where the second SSB is located dynamically changes according to a predefined frequency hopping period.
  • the frequency hopping period may be 5 Hz, 10 Hz and so on.
  • each position where the second SSB is sent may be called a second time-frequency resource.
  • the time-frequency resource for the network device to send the first SSB may be referred to as the first time-frequency resource
  • the first time-frequency resource and the second time-frequency resource are different.
  • Completely coincident that is, the time-frequency position at which the network device transmits the first SSB is different from the time-frequency position at which the network device transmits the second SSB.
  • the working mode of the network device can be configured through the network management system, and the working mode includes a spectrum scanning mode and a frequency hopping mode.
  • the spectrum scanning mode is configured, the network device can determine the position of the second time-frequency resource according to the preset duration and the interference state within the preset frequency range.
  • frequency hopping parameters will also be configured for the network device, and then the network device can dynamically send the second SSB according to the predefined frequency hopping parameters.
  • the network device will not only send the first SSB, but also dynamically send multiple second SSBs according to the frequency hopping parameters, so that the terminal device can obtain at least one second SSB when it fails to obtain the information of the first SSB. II SSB information.
  • the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
  • the method further includes: the terminal device performs blind detection according to a global synchronization channel number (global synchronization channel number, GSCN) frequency point to obtain the second SSB.
  • a global synchronization channel number global synchronization channel number, GSCN
  • the network device When the network device has detected the interference status and indicates a redundant common channel without interference, the network device indicates one second SSB, and the terminal device can perform blind detection at the GSCN frequency to obtain the second SSB.
  • 5G terminals can search for the center frequency points of SSB from low frequency to high frequency: 1.25MHz, 1.35MHz... Once a frequency point is searched and synchronized, it will reside in the cell and enter the follow-up Processes, such as reading MIB/SIB1 system messages, etc. If the capture fails or the information cannot be demodulated, skip to the next candidate position. 5G terminals can pre-configure valid GSCNs to search more quickly according to the support capabilities of the terminal's frequency band.
  • the method further includes: the terminal device acquires a frequency hopping parameter, determines a position of the second time-frequency resource according to the frequency hopping parameter, and then receives the second SSB on the second time-frequency resource.
  • the terminal device can use the same or similar frequency hopping parameters to obtain the second time-frequency resources, and then correctly receive the second SSBs.
  • the frequency hopping parameter can be written in the register of the terminal device in advance, or can be encrypted and written into the frequency hopping parameter through a customized universal subscriber identity module (USIM).
  • USIM universal subscriber identity module
  • the terminal blind search only need to capture the main synchronization of the system to set the crystal oscillator clock of the terminal device to synchronize with the system clock, so as to ensure that the sequence generator of the terminal device is aligned with the system, and then track the frequency hopping sequence to obtain at least one channel position without interference The second SSB sent.
  • the interference situation of the main common channel and the position of the first time-frequency resource and the relationship between the two may include the following situations:
  • Case 2 Interference occurs at the position of the first time-frequency resource. At this time, regardless of whether the position of the first time-frequency resource overlaps with the time-frequency position of the main common channel, the UE cannot correctly receive or demodulate the first SSB, so it cannot obtain Specific information on the time-frequency position of the main common channel.
  • This application sends the second SSB and indicates the time-frequency position of the redundant common channel through the second SSB, so that both the SSB and the common channel form redundancy, and interference occurs at the position of the first time-frequency resource or the time-frequency position of the main common channel
  • the terminal device can access the cell through the second SSB and the redundant common channel, which can improve the anti-interference ability of the common channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
  • the time-frequency position of the main common channel includes the position of the first time-frequency resource
  • the time-frequency position of the redundant common channel includes the position of the second time-frequency resource
  • the communication method provided by the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 5 .
  • the communication device provided by the embodiment of the present application will be introduced below with reference to FIG. 6 to FIG. 8 .
  • Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the apparatus 300 may include a transceiver unit 310, and the transceiver unit 310 may communicate with the outside.
  • the apparatus 300 may further include a processing unit 320, and the processing unit 320 is configured to perform data processing.
  • the transceiver unit 310 may also be called a communication interface or a communication unit.
  • the apparatus 300 may be a network device, or may be a component configured in the network device (for example, a unit, a module, a chip, or a chip system).
  • the transceiver unit 310 is configured to send the first synchronization signal block SSB, the first SSB is used to indicate the time-frequency position of the main common channel; the transceiver unit 310 is also used to: send the second SSB, the second SSB is used to indicate the redundancy
  • the time-frequency position of the common channel, the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
  • the processing unit 320 is configured to: determine a position of a second time-frequency resource, the second time-frequency resource is used to send the second SSB, the second time-frequency resource does not completely overlap with the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource.
  • a time-frequency resource is used for sending the first SSB.
  • the processing unit 320 is specifically configured to: determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range.
  • processing unit 320 is further configured to: schedule terminal devices according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
  • the processing unit 320 is further configured to: acquire configuration information, where the configuration information includes a frequency hopping parameter; and determine a position of the second time-frequency resource according to the frequency hopping parameter.
  • the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • the device 300 here is embodied in the form of functional units.
  • the term "unit” here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • the apparatus 300 may specifically be the network device in the above-mentioned embodiment of the method 200, and the apparatus 300 may be used to execute each process corresponding to the network device in the above-mentioned embodiment of the method 200 and/or or steps, in order to avoid repetition, no more details are given here.
  • the above-mentioned transceiver unit 310 may include a receiving unit 311 and a sending unit 312, wherein the receiving unit 311 is used to perform the receiving function in the above-mentioned transceiver unit 310, and the sending unit 312 is used to perform the sending function in the above-mentioned transceiver unit 310, for example , sending the first SSB and the second SSB to the terminal device.
  • Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the device 400 may include a transceiver unit 410 and a processing unit 420 , the transceiver unit 410 may communicate with the outside, and the processing unit 420 is used for data processing.
  • the transceiver unit 410 may also be called a communication interface or a communication unit.
  • the apparatus 400 may be a network device, or may be a component configured in the network device (for example, a unit, a module, a chip, or a chip system).
  • the transceiver unit 410 is used to receive the second synchronization signal block SSB, and the processing unit 420 is used to determine the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel and the time-frequency of the main common channel The positions are different, and the time-frequency position of the main common channel is determined according to the first SSB.
  • the processing unit 420 is further configured to: acquire a frequency hopping parameter; and determine a position of a second time-frequency resource according to the frequency hopping parameter, where the second time-frequency resource is used for receiving the second SSB.
  • the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
  • the transceiving unit 410 is further configured to: receive the first SSB in the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource.
  • the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
  • the apparatus 400 here is embodied in the form of functional units.
  • the term "unit” here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • the apparatus 400 may specifically be the terminal device in the above-mentioned embodiment of the method 200, and the apparatus 400 may be used to execute each process corresponding to the terminal device in the above-mentioned embodiment of the method 200 and/or or steps, in order to avoid repetition, no more details are given here.
  • the above-mentioned transceiver unit 410 may include a receiving unit 411 and a sending unit 412, wherein the receiving unit 411 is configured to perform the receiving function in the above-mentioned transceiver unit 410, for example, receiving the second SSB from the network device, and the sending unit 412 is used to Execute the sending function in the above-mentioned transceiver unit 410 .
  • Fig. 8 is a structural block diagram of a communication device 500 provided according to an embodiment of the present application.
  • the device 500 includes: a processor 510 , a memory 520 and a transceiver 530 .
  • the processor 510 is coupled with the memory 520 for executing instructions stored in the memory 520 to control the transceiver 530 to send signals and/or receive signals.
  • processor 510 and memory 520 may be combined into one processing device, and the processor 510 is configured to execute program codes stored in the memory 520 to implement the foregoing functions.
  • the memory 520 may also be integrated in the processor 510 , or be independent of the processor 510 .
  • the processor 510 may also correspond to each processing unit in the foregoing communication device, and the transceiver 530 may correspond to each receiving unit and sending unit in the foregoing communication device.
  • the transceiver 530 may include a receiver (or called a receiver) and a transmitter (or called a transmitter).
  • the transceiver may further include antennas, and the number of antennas may be one or more.
  • a transceiver may also be a communication interface or interface circuit.
  • the communication apparatus 500 may correspond to the terminal device in the method 200 according to the embodiment of the present application, or the network device in the method 200 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the chip When the communication device 500 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit or a communication interface;
  • the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the device 500 can be replaced by a chip device, for example, a communication chip that can be used in the device to implement related functions of the processor 510 in the device.
  • the chip device can be a field programmable gate array for realizing relevant functions, an application-specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chips .
  • the chip may optionally include one or more memories for storing program codes, which enable the processor to implement corresponding functions when the codes are executed.
  • the memory and the processor involved in the foregoing embodiments may be physically independent units, or the memory may also be integrated with the processor.
  • transceivers or transceiver units may be input and output interfaces, wherein the receiver or receiving unit may be understood as an input interface, and the transmitter or sending unit may be understood as an input interface. for the output interface.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the above method embodiment is stored.
  • a computer program for implementing the method in the above method embodiment is stored.
  • the computer program runs on the computer, the computer can implement the methods in the above method embodiments.
  • the present application provides a computer program product, including a computer program, and when the computer program is run on a computer, the computer can execute the methods in the above method embodiments.
  • the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.
  • the network equipment in each of the above device embodiments corresponds completely to the terminal equipment and the network equipment or terminal equipment in the method embodiments, and the corresponding modules or units execute corresponding steps, for example, the communication unit (transceiver) executes the receiving or receiving in the method embodiments
  • the communication unit executes the receiving or receiving in the method embodiments
  • a processing unit processor
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be components.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
  • packets of data e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

Provided in the present application are a communication method and a communication apparatus. The method comprises: sending a first synchronization signal block (SSB), wherein the first SSB is used for indicating a time-frequency position of a main common channel; and sending a second SSB, wherein the second SSB is used for indicating a time-frequency position of a redundant common channel, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel. According to the solution of the present application, a network device not only sends a first SSB to a terminal device, but also sends a second SSB, such that the terminal device can access a network by means of the second SSB and a redundant common channel when interference occurs at the position of the transmission of the first SSB or at a main common channel, and thus, an anti-interference capability of a common channel can be improved, and normal operation of a communication system is realized when there is interference in an operation frequency band.

Description

一种通信的方法和通信装置A communication method and communication device
本申请要求申请日为2021年10月28日、申请号为202111263280.1、申请名称为“一种通信的方法和通信装置”的中国发明专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese invention patent application with an application date of October 28, 2021, an application number of 202111263280.1, and an application title of "A Communication Method and Communication Device", the entire contents of which are incorporated in this application by reference .
技术领域technical field
本申请涉及通信领域，并且更具体地，涉及一种通信的方法和通信装置。The present application relates to the communication field, and more specifically, to a communication method and a communication device.
背景技术Background technique
第五代(5th Generation，5G)通信的业务信道通过时域和频域调度、天线技术等方式可以规避部分干扰。随着5G的频段扩充到低频段，面对越来越多的***外干扰，比如广播电视塔的大功率发射信号、各种甚高频(Very high frequency，VHF)/特高频(ultra-high frequency，UHF)波电台临时突发性使用造成的频段内干扰、某些区域恶意的跳频阻塞干扰等。The business channel of the fifth generation (5th Generation, 5G) communication can avoid partial interference through time domain and frequency domain scheduling, antenna technology and other methods. With the expansion of the 5G frequency band to the low frequency band, there will be more and more interference outside the system, such as high-power transmission signals from broadcasting and TV towers, various very high frequency (VHF)/ultra-high frequency (ultra-high frequency) High frequency, UHF) wave radio station temporary burst use caused by interference within the frequency band, malicious frequency hopping blocking interference in some areas, etc.
一旦公共信道受到干扰，会导致终端无法收到***消息，进而无法入网驻留、发起接入、进行正常的资源分配和调度，导致整个***失效。Once the public channel is interfered, the terminal will not be able to receive system messages, and then will not be able to camp on the network, initiate access, and perform normal resource allocation and scheduling, resulting in failure of the entire system.
发明内容Contents of the invention
本申请提供一种通信的方法和装置，能够在工作频段内有干扰的情况下实现通信***的正常工作，提高通信***的抗干扰能力。The present application provides a communication method and device, which can realize the normal operation of the communication system when there is interference in the working frequency band, and improve the anti-interference ability of the communication system.
第一方面，提供了一种通信的方法，该方法可以由网络设备执行，或者，也可以由配置于网络设备中的芯片或电路执行，本申请对此不作限定。In a first aspect, a communication method is provided, and the method may be executed by a network device, or may also be executed by a chip or a circuit configured in the network device, which is not limited in the present application.
该方法包括：发送第一同步信号块SSB，该第一SSB用于指示主公共信道的时频位置；发送第二同步信号块SSB，该第二SSB用于指示冗余公共信道的时频位置，该冗余公共信道的时频位置和该主公共信道的时频位置不同。The method includes: sending a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel; sending a second synchronization signal block SSB, where the second SSB is used to indicate the time-frequency position of the redundant common channel , the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
根据本申请的方案，网络设备不仅会向终端设备发送第一SSB，还会发送第二SSB，使得终端设备在传输第一SSB的位置或者主公共信道发生干扰的情况下，可以通过第二SSB和冗余公共信道接入网络，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。According to the solution of this application, the network device will not only send the first SSB to the terminal device, but also send the second SSB, so that the terminal device can pass the second SSB when the position where the first SSB is transmitted or the main public channel interferes. Access to the network with redundant public channels can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
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：确定第二时频资源的位置，该第二时频资源用于发送第二SSB，该第二时频资源和第一时频资源不完全重合，第一时频资源用于发送第一SSB。With reference to the first aspect, in some implementations of the first aspect, the method further includes: determining a location of a second time-frequency resource, where the second time-frequency resource is used to send the second SSB, and the second time-frequency resource and The first time-frequency resources do not completely overlap, and the first time-frequency resources are used to send the first SSB.
本申请中，发送第二SSB的时频资源与发送第一SSB的时频资源不同，使得在第一时频资源发生干扰的情况下，可以通过第二时频资源接收第二SSB，并通过冗余公共信道接入网络，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信*** 的正常工作。In this application, the time-frequency resource for sending the second SSB is different from the time-frequency resource for sending the first SSB, so that in the case of interference with the first time-frequency resource, the second SSB can be received through the second time-frequency resource, and passed Redundant public channels are connected to the network, which can improve the anti-interference ability of the public channels, and realize the normal operation of the communication system when there is interference in the working frequency band.
结合第一方面，在第一方面的某些实现方式中，该确定第二时频资源的位置，包括：根据预设时长和预设频率范围内的干扰状态确定该第二时频资源的位置。With reference to the first aspect, in some implementation manners of the first aspect, the determining the position of the second time-frequency resource includes: determining the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range .
本申请实施例中，网络设备不仅会发送第一SSB，还会根据频谱扫描结果选择未发生干扰的时频位置发送第二SSB，使得终端设备在获取第一SSB的信息失败时，还能够获得第二SSB的信息。通过这种方式，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。In the embodiment of the present application, the network device will not only send the first SSB, but also select the time-frequency position where no interference occurs to send the second SSB according to the spectrum scanning results, so that when the terminal device fails to obtain the information of the first SSB, it can also obtain Information of the second SSB. In this way, the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
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：根据冗余公共信道的时频位置和主公共信道的时频位置调度终端设备。With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: scheduling terminal devices according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
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：获取配置信息，该配置信息包括跳频参数；该确定第二时频资源的位置，包括：根据跳频参数确定第二时频资源的位置。With reference to the first aspect, in some implementations of the first aspect, the method further includes: acquiring configuration information, where the configuration information includes frequency hopping parameters; determining the location of the second time-frequency resource includes: determining according to the frequency hopping parameters The location of the second time-frequency resource.
本申请实施例中，网络设备不仅会发送第一SSB，还会根据跳频参数动态发送多个第二SSB，使得终端设备在获取第一SSB的信息失败时，还能够获得至少一个第二SSB的信息。通过这种方式，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。In the embodiment of this application, the network device will not only send the first SSB, but also dynamically send multiple second SSBs according to the frequency hopping parameters, so that the terminal device can also obtain at least one second SSB when it fails to obtain the information of the first SSB Information. In this way, the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
结合第一方面，在第一方面的某些实现方式中，该跳频参数包括跳频序列或跳频周期。With reference to the first aspect, in some implementation manners of the first aspect, the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
结合第一方面，在第一方面的某些实现方式中，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。With reference to the first aspect, in some implementation manners of the first aspect, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
第二方面，提供了一种通信的方法，该方法可以由终端设备执行，或者，也可以由配置于终端设备中的芯片或电路执行，本申请对此不作限定。In a second aspect, a communication method is provided, and the method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in the present application.
该方法包括：接收第二同步信号块SSB；根据第二SSB确定冗余公共信道的时频位置，冗余公共信道的时频位置和主公共信道的时频位置不同，主公共信道的时频位置根据第一SSB确定。The method includes: receiving the second synchronization signal block SSB; determining the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel, and the time-frequency position of the main common channel The location is determined from the first SSB.
根据本申请的方案，网络设备不仅会向终端设备发送第一SSB，还会发送第二SSB，使得终端设备在传输第一SSB的位置或者主公共信道发生干扰的情况下，可以通过第二SSB和冗余公共信道接入网络，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。According to the solution of this application, the network device will not only send the first SSB to the terminal device, but also send the second SSB, so that the terminal device can pass the second SSB when the position where the first SSB is transmitted or the main public channel interferes. Access to the network with redundant public channels can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
结合第二方面，在第二方面的某些实现方式中，该方法还包括：获取跳频参数；根据该跳频参数确定第二时频资源的位置，第二时频资源用于接收第二SSB。With reference to the second aspect, in some implementation manners of the second aspect, the method further includes: acquiring a frequency hopping parameter; determining a position of a second time-frequency resource according to the frequency hopping parameter, and the second time-frequency resource is used to receive the second SSB.
结合第二方面，在第二方面的某些实现方式中，该跳频参数包括跳频序列或跳频周期。With reference to the second aspect, in some implementation manners of the second aspect, the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
结合第二方面，在第二方面的某些实现方式中，该方法还包括：在第一时频资源接收第一SSB，该第二时频资源和第一时频资源不完全重合。With reference to the second aspect, in some implementation manners of the second aspect, the method further includes: receiving the first SSB on the first time-frequency resource, where the second time-frequency resource does not completely overlap with the first time-frequency resource.
结合第二方面，在第二方面的某些实现方式中，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。With reference to the second aspect, in some implementation manners of the second aspect, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
第三方面，提供了一种通信装置，该装置可以为网络设备，或者，也可以为配置于网络设备中的芯片或电路，本申请对此不作限定。In a third aspect, a communication device is provided. The device may be a network device, or may also be a chip or a circuit configured in the network device, which is not limited in the present application.
该装置包括：收发单元，用于发送第一同步信号块SSB，该第一SSB用于指示主公共信道的时频位置；该收发单元还用于：发送第二SSB，该第二SSB用于指示冗余公共 信道的时频位置，该冗余公共信道的时频位置和该主公共信道的时频位置不同。The device includes: a transceiver unit, configured to send a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel; the transceiver unit is also configured to: send a second SSB, where the second SSB is used for Indicates the time-frequency position of the redundant common channel, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
结合第三方面，在第三方面的某些实现方式中，该通信装置还包括：处理单元，用于确定第二时频资源的位置，该第二时频资源用于发送第二SSB，该第二时频资源和第一时频资源不完全重合，该第一时频资源用于发送第一SSB。With reference to the third aspect, in some implementation manners of the third aspect, the communication device further includes: a processing unit configured to determine a position of a second time-frequency resource, where the second time-frequency resource is used to send the second SSB, the The second time-frequency resource does not completely overlap with the first time-frequency resource, and the first time-frequency resource is used for sending the first SSB.
结合第三方面，在第三方面的某些实现方式中，该处理单元具体用于：根据预设时长和预设频率范围内的干扰状态确定该第二时频资源的位置。With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is specifically configured to: determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range.
结合第三方面，在第三方面的某些实现方式中，该处理单元还用于：根据冗余公共信道的时频位置和主公共信道的时频位置调度终端设备。With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: schedule the terminal device according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
结合第三方面，在第三方面的某些实现方式中，该处理单元还用于：获取配置信息，配置信息包括跳频参数；处理单元具体用于：根据该跳频参数确定第二时频资源的位置。With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: obtain configuration information, and the configuration information includes a frequency hopping parameter; the processing unit is specifically configured to: determine the second time frequency according to the frequency hopping parameter The location of the resource.
结合第三方面，在第三方面的某些实现方式中，该跳频参数包括跳频序列或跳频周期。With reference to the third aspect, in some implementation manners of the third aspect, the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
结合第三方面，在第三方面的某些实现方式中，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。With reference to the third aspect, in some implementation manners of the third aspect, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
第四方面，提供了一种通信装置，该装置可以为终端设备，或者，也可以为配置于终端设备中的芯片或电路，本申请对此不作限定。In a fourth aspect, a communication device is provided. The device may be a terminal device, or may also be a chip or a circuit configured in the terminal device, which is not limited in the present application.
该装置包括：收发单元，用于接收第二同步信号块SSB；处理单元，用于根据第二SSB确定冗余公共信道的时频位置，该冗余公共信道的时频位置和主公共信道的时频位置不同，该主公共信道的时频位置根据第一SSB确定。The device includes: a transceiver unit for receiving the second synchronization signal block SSB; a processing unit for determining the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel and the time-frequency position of the main common channel The time-frequency positions are different, and the time-frequency position of the main common channel is determined according to the first SSB.
结合第四方面，在第四方面的某些实现方式中，该处理单元还用于：获取跳频参数；根据该跳频参数确定第二时频资源的位置，该第二时频资源用于接收第二SSB。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the processing unit is further configured to: acquire a frequency hopping parameter; determine a position of a second time-frequency resource according to the frequency hopping parameter, and the second time-frequency resource is used for Receive the second SSB.
结合第四方面，在第四方面的某些实现方式中，该跳频参数包括跳频序列或跳频周期。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the frequency hopping parameter includes a frequency hopping sequence or a frequency hopping period.
结合第四方面，在第四方面的某些实现方式中，该收发单元还用于：在第一时频资源接收第一SSB，该第二时频资源和该第一时频资源不完全重合。With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to: receive the first SSB on the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource .
结合第四方面，在第四方面的某些实现方式中，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
第五方面，本申请提供了一种通信装置，该装置包括：至少一个处理器，该至少一个处理器与至少一个存储器耦合，该至少一个处理器用于执行该至少一个存储器中存储的计算机程序或指令，使得该装置执行上述第一方面至第二方面以及第一方面至第二方面中任一种可能实现方式中的方法。In a fifth aspect, the present application provides a communication device, which includes: at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program stored in the at least one memory or instructions, so that the device executes the method in any one possible implementation manner of the above-mentioned first aspect to the second aspect and the first aspect to the second aspect.
第六方面，本申请提供了一种计算机可读介质，该计算机可读存储介质上存储有计算机程序或指令，当该计算机程序或指令在计算机上运行时，使得计算机可以实现上述第一方面至第二方面以及第一方面至第二方面中任一种可能实现方式中的方法。In a sixth aspect, the present application provides a computer-readable medium, on which a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer can realize the above-mentioned first aspect to The second aspect and the method in any possible implementation manner of the first aspect to the second aspect.
第七方面，本申请提供了一种计算机程序产品，包括计算机程序或指令，当该计算机程序或指令被执行时用于实现上述第一方面至第二方面以及第一方面至第二方面中任一种可能实现方式中的方法。In a seventh aspect, the present application provides a computer program product, including a computer program or an instruction, which is used to realize any of the above-mentioned first to second aspects and the first to second aspects when the computer program or instruction is executed. A method in one possible implementation.
第八方面，本申请提供了一种芯片***，包括：处理器，该处理器用于执行该存储器中的计算机程序或指令，使得该芯片***实现上述第一方面至第二方面以及第一方面至第二方面中任一种可能实现方式中的方法。In an eighth aspect, the present application provides a chip system, including: a processor, the processor is used to execute the computer programs or instructions in the memory, so that the chip system implements the above first to second aspects and the first to second aspects The method in any possible implementation manner in the second aspect.
第九方面，提供了一种通信装置，该装置包括处理器，该处理器用于执行上述第一方 面至第二方面以及第一方面至第二方面中任一种可能实现方式中的方法。In a ninth aspect, there is provided a communication device, which includes a processor, and the processor is configured to execute the method in any possible implementation manner of the first aspect to the second aspect and any one of the first aspect to the second aspect.
第十方面，提供了一种通信***，包括前述终端设备和网络设备。In a tenth aspect, a communication system is provided, including the aforementioned terminal device and network device.
附图说明Description of drawings
图1是本申请实施例适用的一种通信***的示意图。Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable.
图2是本申请实施例提供的一种SSB符号包括的内容的示意图。Fig. 2 is a schematic diagram of contents included in an SSB symbol provided by an embodiment of the present application.
图3是本申请实施例提供的两种阻塞干扰的示意图。Fig. 3 is a schematic diagram of two kinds of blocking interference provided by the embodiment of the present application.
图4是本申请实施例提供的一种通信的方法的示意性流程图。FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
图5是本申请提供的一种第一SSB和第二SSB的时域位置的示意图。Fig. 5 is a schematic diagram of time-domain positions of a first SSB and a second SSB provided by the present application.
图6是本申请实施例提供的一种通信装置的示意性框图。Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
图7是本申请实施例提供的一种通信装置的示意性框图。Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
图8是根据本申请实施例提供的一种通信装置的结构框图。Fig. 8 is a structural block diagram of a communication device provided according to an embodiment of the present application.
具体实施方式Detailed ways
下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below with reference to the accompanying drawings.
本申请实施例的技术方案可以应用于各种通信***，例如：长期演进(Long Term Evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)、通用移动通信***(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、第五代(5th Generation，5G)移动通信***或新空口(new radio，NR)。其中，5G移动通信***可以是非独立组网(non-standalone，NSA)或独立组网(standalone，SA)。The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex) , TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5th Generation, 5G) Mobile Communication System or New Air Interface ( new radio, NR). Wherein, the 5G mobile communication system may be a non-standalone network (non-standalone, NSA) or a standalone network (standalone, SA).
本申请提供的技术方案还可以应用于机器类通信(machine type communication，MTC)、机器间通信长期演进技术(long term evolution-machine，LTE-M)、设备到设备(device-to device，D2D)网络、机器到机器(machine to machine，M2M)网络、物联网(internet of things，IoT)网络或者其他网络。其中，IoT网络例如可以包括车联网。其中，车联网***中的通信方式统称为车到其他设备(vehicle to X，V2X，X可以代表任何事物)，例如，该V2X可以包括：车辆到车辆(vehicle to vehicle，V2V)通信，车辆与基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。The technical solution provided by this application can also be applied to machine type communication (machine type communication, MTC), inter-machine communication long-term evolution technology (long term evolution-machine, LTE-M), device-to-device (device-to-device, D2D) A network, a machine to machine (M2M) network, an Internet of things (IoT) network, or other networks. Wherein, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and Infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian (vehicle to pedestrian, V2P) or vehicle to network (vehicle to network, V2N) communication, etc.
本申请提供的技术方案还可以应用于未来的通信***，如第六代(6th Generation，6G)移动通信***等。本申请对此不作限定。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 and the like. This application is not limited to this.
在本申请实施例中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。In this embodiment of the present application, a terminal device may also be called a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user device.
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例可以为：手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device，MID)、虚拟现实(virtual reality，VR)设备、增强现实(augmented  reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端(例如，电视机等家电、智慧盒子、游戏机)、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。A terminal device may be a device that provides voice/data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, examples of some terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in self driving (self driving), wireless in remote medical (remote medical) Terminals, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home (for example, TV home appliances, smart boxes, game consoles), cellular phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (PDAs) ), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolution of public land mobile network (public land mobile network, PLMN) in the terminal equipment, etc.
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。Among them, wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
此外，终端设备还可以是物联网(Internet of things，IoT)***中的终端设备。IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接，深度覆盖，终端省电。In addition, the terminal device may also be a terminal device in an Internet of Things (Internet of things, IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and object interconnection. IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.
在本申请实施例中，该终端设备还可以是车辆或整车，通过车联网可以实现通信，也可以是位于车辆内(例如放置在车辆内或安装在车辆内)的部件，即车载终端设备、车载模块或者车载单元(on-board unit，OBU)。In the embodiment of the present application, the terminal device can also be a vehicle or a complete vehicle, and communication can be realized through the Internet of Vehicles, or it can be a component located in the vehicle (for example, placed in the vehicle or installed in the vehicle), that is, the vehicle terminal device , on-board module or on-board unit (OBU).
此外，终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。In addition, terminal equipment can also include sensors such as smart printers, train detectors, and gas stations. The main functions include collecting data (partial terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .
本申请实施例中，网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WiFi)***中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，***中的gNB，或，传输点(TRP或TP)，5G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)，或者下一代通信6G***中的基站等。In this embodiment of the present application, the network device may be any device with a wireless transceiver function. The equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, Such as a baseband unit (BBU), or a distributed unit (DU), or a base station in the next-generation communication 6G system, etc.
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource  control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、介质接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU和CU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and realizes the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer and physical (physical, PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU and CU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
网络设备为小区提供服务，终端设备通过网络设备分配的传输资源(例如，频域资源，或者说，频谱资源)与小区进行通信，该小区可以属于宏基站(例如，宏eNB或宏gNB等)，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。The network device provides services for the cell, and the terminal device communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network device. The cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to a small cell, where the small cell can include: a metro cell, a micro cell, a pico cell, a femto cell, etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
图1是适用于本申请实施例的通信方法的通信***100的示意图。如图1所示，该通信***100可以包括至少一个网络设备，例如图1所示的网络设备110；该通信***100还可以包括至少一个终端设备，例如图1所示的终端设备120。网络设备110与终端设备120可通过无线链路通信。各通信设备，如网络设备110或终端设备120，均可以配置多个天线。对于该通信***中的每一个通信设备而言，所配置的多个天线可以包括至少一个用于发送信号的发送天线和至少一个用于接收信号的接收天线。因此，该通信***中的各通信设备之间，网络设备110与终端设备120之间，可通过多天线技术通信。FIG. 1 is a schematic diagram of a communication system 100 applicable to the communication method of the embodiment of the present application. As shown in FIG. 1 , the communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. 1 . The network device 110 and the terminal device 120 may communicate through a wireless link. Each communication device, such as the network device 110 or the terminal device 120, may be configured with multiple antennas. For each communication device in the communication system, the configured plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, communication between various communication devices in the communication system, and between the network device 110 and the terminal device 120 may be performed through the multi-antenna technology.
应理解，图1仅为便于理解而示例的简化示意图，该通信***中还可以包括其他网络设备或者还可以包括其他终端设备，图1中未予以画出。It should be understood that FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may also include other network devices or other terminal devices, which are not shown in FIG. 1 .
还应理解，图1仅为本申请实施例的一种应用场景，本申请实施例提供的方法并不仅限于网络设备与终端设备之间的通信，还可应用于终端设备与终端设备之间的通信等。本申请对于该方法所应用的场景并不做限定。下文示出的实施例中，仅为便于理解和说明，以网络设备与终端设备之间的交互为例详细说明本申请实施例提供的方法。It should also be understood that FIG. 1 is only an application scenario of the embodiment of the present application, and the method provided in the embodiment of the present application is not limited to the communication between the network device and the terminal device, and can also be applied to the communication between the terminal device and the terminal device. communication etc. This application does not limit the scenarios to which this method is applied. In the embodiments shown below, the method provided in the embodiments of the present application is described in detail by taking the interaction between the network device and the terminal device as an example for ease of understanding and description.
为便于理解本申请实施例，下面对本申请实施例中涉及到的术语做简单介绍。To facilitate understanding of the embodiments of the present application, terms involved in the embodiments of the present application are briefly introduced below.
1、同步信号块(synchronization signal/physical broadcast channel block，SSB)1. Synchronization signal/physical broadcast channel block (SSB)
SSB也可以称为同步信号/物理广播信道(physical broadcast channel，PBCH)块(block)，由主同步信号(Primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(physical broadcasting channel，PBCH)组成，在时域上占用4个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号。SSB can also be called a synchronization signal/physical broadcast channel (physical broadcast channel, PBCH) block (block), which consists of a primary synchronization signal (Primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a physical broadcast channel ( physical broadcasting channel (PBCH), occupying 4 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols in the time domain.
图2是本申请实施例提供的一种SSB符号包括的内容的示意图。SSB带宽为20个资源块(resource block，RB)，包含了240个子载波(subcarrier)。第一个符号承载有PSS，其中包括了127个子载波，即PSS序列长度为127，并且PSS只占用SSB频域中间部分，两边不发送其他数据或控制信息；第二个和第四个符号为广播信道(physical broadcasting channel，PBCH)，主要承载***信息；第三个符号同时承载PBCH和SSS，其中SSS序列长度和PSS一样都是127，并且都占用SSB频域中间的127个资源元素(resource element， RE)。SSS的两边分别使用48个RE发送PBCH，SSS和PBCH之间有8和9个RE的间隔。Fig. 2 is a schematic diagram of contents included in an SSB symbol provided by an embodiment of the present application. The SSB bandwidth is 20 resource blocks (resource block, RB), including 240 subcarriers (subcarrier). The first symbol carries PSS, which includes 127 subcarriers, that is, the PSS sequence length is 127, and the PSS only occupies the middle part of the SSB frequency domain, and no other data or control information is sent on both sides; the second and fourth symbols are The broadcast channel (physical broadcasting channel, PBCH), mainly carries system information; the third symbol carries PBCH and SSS at the same time, where the sequence length of SSS is 127 like that of PSS, and both occupy 127 resource elements in the middle of the SSB frequency domain (resource element, RE). Both sides of the SSS use 48 REs to send the PBCH respectively, and there is an interval of 8 and 9 REs between the SSS and the PBCH.
2、控制资源集(control resource set，CORESET)和搜索空间(search space)2. Control resource set (CORESET) and search space (search space)
控制资源集用于传输下行控制信息的资源集合，也可以称为控制资源区域，或物理下行控制信道资源集合。The control resource set is a resource set used to transmit downlink control information, and may also be called a control resource region, or a physical downlink control channel resource set.
由于NR中***带宽较大(频率范围1(frequency range 1，FR1)最高可达100MHz，频率范围2(frequency range 2，FR2)最高可达400MHz，NR将PDCCH在频域上占用的频段和在时域上占用的OFDM符号数等信息封装在CORESET中，将PDCCH起始的OFDM符号数索引以及PDCCH监听周期等信息封装在搜索空间(search space)中。PDCCH的配置包括CORESET的配置和搜索空间的配置，根据CORESET和搜索空间，可以确定候选PDCCH资源。其中，控制资源集可以包括时频资源，例如，频域上可以是一段带宽，或者一个或者多个子带等；时域上可以是一个或多个OFDM符号；一个控制资源集在频域上可以是连续或不连续的资源，例如，在频域上，控制资源集包括连续的RB或者不连续的RB。一个或多个搜索空间组成一个搜索空间集。当没有特别说明时，搜索空间和搜索空间集可互换，它们表示的含义相同。Since the system bandwidth in NR is large (frequency range 1 (frequency range 1, FR1) can reach up to 100MHz, and frequency range 2 (frequency range 2, FR2) can reach up to 400MHz, NR combines the frequency band occupied by PDCCH in the frequency domain with the Information such as the number of OFDM symbols occupied in the time domain is encapsulated in the CORESET, and information such as the number of OFDM symbols starting from the PDCCH and the PDCCH monitoring period are encapsulated in the search space. The configuration of the PDCCH includes the configuration and search space of the CORESET According to the configuration of CORESET and search space, candidate PDCCH resources can be determined. Wherein, the control resource set can include time-frequency resources, for example, in the frequency domain, it can be a section of bandwidth, or one or more subbands, etc.; in the time domain, it can be a or multiple OFDM symbols; a control resource set can be continuous or discontinuous resources in the frequency domain, for example, in the frequency domain, the control resource set includes continuous RBs or discontinuous RBs. One or more search spaces consist of A set of search spaces. Unless otherwise specified, search space and search space set are interchangeable and mean the same thing.
对于网络设备而言，控制资源集可以理解为发送PDCCH所可能使用的资源的集合；对于终端设备而言，每个终端设备的PDCCH的搜索空间所对应的资源都属于控制资源集。或者说，网络设备可以从控制资源集中确定发送PDCCH使用的资源，终端设备可以根据控制资源集确定PDCCH的搜索空间。For a network device, the control resource set can be understood as a set of resources that may be used for sending the PDCCH; for a terminal device, the resources corresponding to the PDCCH search space of each terminal device belong to the control resource set. In other words, the network device may determine the resource used for sending the PDCCH from the control resource set, and the terminal device may determine the PDCCH search space according to the control resource set.
3、同步栅格(synchronization raster，synch raster)3. Synchronization raster (synch raster)
终端设备扫描SSB的频率位置信息可通过同步栅格定义，它表示一系列可用于发送SSB的频点。基站部署时需建立小区，每个小区都需要有特定的SSB，每个SSB对应的频率位置即为同步栅格位置。同步栅格概念的引入主要是让终端设备执行小区搜索过程中在特定频点位置做相应搜索，避免盲目搜索的不确定性导致过长的接入时延和能量损耗。3GPP定义了某些频率作为同步栅格，CD-SSB位于同步栅格，而NCD-SSB可能位于同步栅格，也可能不位于同步栅格。同步栅格是绝对的频率位置。同步栅格的频率位置如果存在SSB，则对应的是SSB包括的240个子载波中的第121个子载波的频率位置。The frequency position information of the terminal device scanning the SSB can be defined by a synchronization grid, which represents a series of frequency points that can be used to transmit the SSB. Cells need to be established during base station deployment, and each cell needs to have a specific SSB, and the frequency position corresponding to each SSB is the synchronization grid position. The introduction of the synchronization grid concept is mainly to allow terminal equipment to perform corresponding searches at specific frequency points during the cell search process, so as to avoid excessive access delay and energy loss caused by the uncertainty of blind search. 3GPP defines certain frequencies as synchronous grids, CD-SSB is on the synchronous grid, and NCD-SSB may or may not be on the synchronous grid. A sync grid is an absolute frequency position. If there is an SSB in the frequency position of the synchronization grid, it corresponds to the frequency position of the 121st subcarrier among the 240 subcarriers included in the SSB.
UE在初始接入时要先选择小区。UE会在同步栅格上搜索SSB，如果在同步栅格上搜索到CD-SSB，UE就可能会选择该CD-SSB对应的小区作为初始接入小区。此外，UE会接收该CD-SSB关联的RMSI(即SIB1)。The UE first selects a cell when initially accessing. The UE will search for the SSB on the synchronization grid. If a CD-SSB is found on the synchronization grid, the UE may select the cell corresponding to the CD-SSB as the initial access cell. In addition, the UE will receive the RMSI associated with the CD-SSB (ie SIB1).
4、带宽部分(bandwidth part，BWP)4. Bandwidth part (BWP)
BWP是载波带宽内的部分带宽。一个BWP可以是一个载波上的一段连续频率资源。网络设备可以给一个终端配置一个或多个BWP，不同BWP的带宽可以不同。网络设备也可以给不同的终端设备配置不同的带宽大小的BWP。网络设备会发送激活信令激活多个配置的BWP中的一个。当一个BWP被配置并且激活后，这个BWP被称为激活的BWP(active BWP)，激活的BWP包括激活的下行链路(down link，DL)BWP和激活的上行链路(up link，UL)BWP。终端设备在激活的UL BWP内发送数据和控制信息，在激活DL BWP内接收数据和控制信息。一种可能的实施方式中，在一个小区，同一个时刻，1个终端设备只支持1个激活的上行BWP和/或1个下行BWP。终端设备在初始接入时被 分配的BWP称为初始BWP(initial BWP)。初始BWP的标识取值为0。The BWP is a portion of the bandwidth within the carrier bandwidth. A BWP can be a segment of continuous frequency resources on a carrier. A network device can configure one or more BWPs for a terminal, and bandwidths of different BWPs can be different. The network device can also configure BWPs with different bandwidth sizes for different terminal devices. The network device will send an activation signaling to activate one of the multiple configured BWPs. When a BWP is configured and activated, this BWP is called an active BWP (active BWP), and an activated BWP includes an activated downlink (down link, DL) BWP and an activated uplink (up link, UL) BWP. The terminal device sends data and control information in the active UL BWP and receives data and control information in the active DL BWP. In a possible implementation manner, in one cell at the same moment, one terminal device only supports one activated uplink BWP and/or one downlink BWP. The BWP assigned to the terminal device during initial access is called initial BWP (initial BWP). The value of the initial BWP identifier is 0.
第五代(5th Generation，5G)通信的业务信道通过时域和频域调度、天线技术等方式可以规避部分干扰。随着5G的频段扩充到低频段，面对越来越多的***外干扰，比如广播电视塔的大功率发射信号、各种甚高频(Very high frequency，VHF)/特高频(ultra-high frequency，UHF)波电台临时突发性使用造成的频段内干扰、某些区域恶意的跳频阻塞干扰等。The business channel of the fifth generation (5th Generation, 5G) communication can avoid partial interference through time domain and frequency domain scheduling, antenna technology and other methods. With the expansion of the 5G frequency band to the low frequency band, there will be more and more interference outside the system, such as high-power transmission signals from broadcasting and TV towers, various very high frequency (VHF)/ultra-high frequency (ultra-high frequency) High frequency, UHF) wave radio station temporary burst use caused by interference within the frequency band, malicious frequency hopping blocking interference in some areas, etc.
一旦公共信道受到干扰，会导致终端无法收到***消息，进而无法入网驻留、发起接入、进行正常的资源分配和调度，导致整个***失效。Once the public channel is interfered, the terminal will not be able to receive system messages, and then will not be able to camp on the network, initiate access, and perform normal resource allocation and scheduling, resulting in failure of the entire system.
作为示例，图3是本申请实施例提供的两种阻塞干扰的示意图。如图3的(A)所示，在公共信道的跳频频段内发生了梳状阻塞干扰，如图3的(B)所示，在公共信道的跳频频段内发生了宽带阻塞干扰。跳频频率是终端设备可以工作的频率范围的区间，在跳频频段发生干扰(梳状阻塞干扰或宽带阻塞干扰)将会引起干扰位置某些频点的信号质量恶化，如果干扰位置是小区的公共信道的时频位置，将会使得终端设备无法进行小区搜索，进而会影响通信***的正常工作。As an example, FIG. 3 is a schematic diagram of two types of blocking interference provided in the embodiment of the present application. As shown in (A) of FIG. 3 , comb blocking interference occurs in the frequency hopping frequency band of the common channel, and as shown in (B) of FIG. 3 , broadband blocking interference occurs in the frequency hopping frequency band of the common channel. The frequency hopping frequency is the frequency range in which the terminal equipment can work. Interference (comb blocking interference or broadband blocking interference) in the frequency hopping frequency band will cause the signal quality of some frequency points to deteriorate at the interference location. If the interference location is a cell The time-frequency position of the public channel will make it impossible for the terminal equipment to perform cell search, which in turn will affect the normal operation of the communication system.
本申请提供一种通信方法和装置，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。The present application provides a communication method and device, which can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
图4是本申请实施例提供的一种通信的方法的示意性框图。图4所示的方法200可以由图1所示的终端设备和网络设备执行。Fig. 4 is a schematic block diagram of a communication method provided by an embodiment of the present application. The method 200 shown in FIG. 4 may be executed by the terminal device and the network device shown in FIG. 1 .
S210，网络设备发送第一SSB，该第一SSB用于指示主公共信道的时频位置。S210, the network device sends a first SSB, where the first SSB is used to indicate the time-frequency position of the main common channel.
第一SSB也可以称为缺省(default)SSB，第一SSB携带的信息符合当前协议的定义，第一SSB也可以理解为当前协议已经定义的、终端设备在进行小区接入时所使用的SSB，第一SSB可以指示主公共信道的时频位置。The first SSB can also be called the default (default) SSB. The information carried by the first SSB conforms to the definition of the current protocol. The first SSB can also be understood as the one defined by the current protocol and used by the terminal device when performing cell access. SSB, the first SSB may indicate the time-frequency position of the main common channel.
本申请中，主公共信道的时频位置，包括但不限于第一同步/物理广播信道、第一控制信道、第一接入信道中至少一个。其中，第一同步/物理广播信道包括第一主同步信道(primary synchronization channel，P-SCH)、第一辅同步信道(secondary synchronization channel，S-SCH)和第一PBCH信道，第一控制信道包括第一物理下行控制信道(physical downlink control channel，PDCCH)和第一物理上行控制信道(physical uplink control channel，PUCCH)，第一接入信道主要包括第一物理随机接入信道(physical random access channel，PRACH)。In this application, the time-frequency position of the main common channel includes but not limited to at least one of the first synchronous/physical broadcast channel, the first control channel, and the first access channel. Wherein, the first synchronization/physical broadcast channel includes a first primary synchronization channel (primary synchronization channel, P-SCH), a first secondary synchronization channel (secondary synchronization channel, S-SCH) and a first PBCH channel, and the first control channel includes The first physical downlink control channel (physical downlink control channel, PDCCH) and the first physical uplink control channel (physical uplink control channel, PUCCH), the first access channel mainly includes the first physical random access channel (physical random access channel, PRACH).
具体而言，第一SSB的时频图案如图2所示，包括PSS、SSS和PBCH。PBCH会承载主信息块(master information block，MIB)信息，表1是MIB信息所包括的信元、以及每个信元的具体含义。Specifically, the time-frequency pattern of the first SSB is shown in FIG. 2 , including PSS, SSS and PBCH. PBCH will carry master information block (master information block, MIB) information, Table 1 is the cells included in the MIB information, and the specific meaning of each cell.
表1Table 1
Figure PCTCN2022126930-appb-000001
Figure PCTCN2022126930-appb-000001
Figure PCTCN2022126930-appb-000002
Figure PCTCN2022126930-appb-000002
MIB信息可以指示CORESET#0的时域位置。具体而言，在频域位置上，CORESET#0和第一SSB是子载波对齐的。MIB中的ssb-SubcarrierOffset用于指示第一SSB的子载波偏移，该子载波偏移为第一SSB与公共资源块(common RB，CRB)之间的偏移的子载波的个数。MIB中的pdcch-ConfigSIB1信元共8比特，其中ControlResourceSetZero占用4比特，其取值对应3GPP协议预定义的表格中的一个索引，该索引所在的行包括第CORESET#0所对应的资源块RB的个数、符号的个数、以及CORESET#0与CRB之间偏移的RB个数，根据ssb-SubcarrierOffset和ControlResourceSetZero可以确定CORESET#0的频域位置。此外，pdcch-ConfigSIB1信元中的SearchSpaceZero也占用4比特，其可以指示CORESET#0的时域位置。MIB information may indicate the time domain location of CORESET#0. Specifically, CORESET#0 and the first SSB are subcarrier-aligned in the frequency domain position. The ssb-SubcarrierOffset in the MIB is used to indicate the subcarrier offset of the first SSB, and the subcarrier offset is the number of offset subcarriers between the first SSB and a common resource block (common RB, CRB). The pdcch-ConfigSIB1 information element in the MIB has a total of 8 bits, of which ControlResourceSetZero occupies 4 bits, and its value corresponds to an index in a table predefined in the 3GPP protocol. The row where the index is located includes the resource block RB corresponding to CORESET#0 The number of symbols, the number of symbols, and the number of RBs offset between CORESET#0 and CRB, according to ssb-SubcarrierOffset and ControlResourceSetZero, the frequency domain position of CORESET#0 can be determined. In addition, SearchSpaceZero in the pdcch-ConfigSIB1 information element also occupies 4 bits, which can indicate the time domain position of CORESET#0.
在确定CORESET#0的时频位置之后，终端设备可以在CORESET#0上监听调度***信息块1(system information block 1，SIB1，又称为剩余最小***信息(remaining minimum system information，RMSI))的PDCCH(即第一PDCCH)，进而根据PDCCH中的指示信息接收承载SIB1的PDSCH，获得SIB1信息。After determining the time-frequency position of CORESET#0, the terminal device can monitor the schedule system information block 1 (system information block 1, SIB1, also known as remaining minimum system information (RMSI)) on CORESET#0 The PDCCH (that is, the first PDCCH), and then receives the PDSCH carrying the SIB1 according to the indication information in the PDCCH, and obtains the SIB1 information.
SIB1信息中携带PRACH时频位置、初始BWP的起始频率位置和带宽大小。The SIB1 information carries the time-frequency position of the PRACH, the initial frequency position of the initial BWP, and the bandwidth size.
具体而言，SIB1消息中包括PRACH-configurationIndex、FrequencyStart信元，按照38.211协议，可以确定PRACH(即第一PRACH)的时域信息和频域位置。Specifically, the SIB1 message includes PRACH-configurationIndex and FrequencyStart information elements, and according to the 38.211 protocol, the time domain information and frequency domain position of the PRACH (that is, the first PRACH) can be determined.
此外，MIB信息和SIB信息还会包括PUCCH资源集合配置信息，通过协议定义的PUCCH配置信息表，可以指示common PUCCH(即第一PUCCH)的时频位置。In addition, the MIB information and SIB information will also include PUCCH resource set configuration information, and the time-frequency position of the common PUCCH (that is, the first PUCCH) can be indicated through the PUCCH configuration information table defined by the protocol.
在一种实现方式中，在主公共信道发生干扰的情况下，终端设备可能无法接收到第一SSB，进而，无法通过第一SSB获取网络设备指示的主公共信道的时频位置。In an implementation manner, when interference occurs on the main common channel, the terminal device may not be able to receive the first SSB, and furthermore, cannot obtain the time-frequency position of the main common channel indicated by the network device through the first SSB.
在一种实现方式中，在主公共信道发生干扰的情况下，终端设备可以接收到第一SSB，但是由于接收到的信号存在干扰，则终端设备无法解调第一SSB，进而无法确定主公共信道的时频位置。In one implementation, when interference occurs on the primary common channel, the terminal device can receive the first SSB, but due to interference in the received signal, the terminal device cannot demodulate the first SSB, and thus cannot determine the primary common channel. The time-frequency position of the channel.
本申请中，第一SSB在时域上的发送个数符合当前标准定义定义，即第一SSB在时域上的最大个数与波束扫描相关，低频时时域个数较少，例如，3GHz以下的频段，最大可以定义4个第一SSB，在时域上占用前2个时隙。3至6GHz频段，最大可以定义8个第一SSB，在时域上占用前4个时隙。In this application, the number of transmissions of the first SSB in the time domain conforms to the definition of the current standard, that is, the maximum number of the first SSB in the time domain is related to beam scanning, and the number of time domains is small at low frequencies, for example, below 3GHz In the frequency band, a maximum of 4 first SSBs can be defined, occupying the first 2 time slots in the time domain. In the 3-6GHz frequency band, a maximum of 8 first SSBs can be defined, occupying the first 4 time slots in the time domain.
S220，网络设备发送第二SSB，相应地，终端设备接收第二SSB。S220, the network device sends the second SSB, and correspondingly, the terminal device receives the second SSB.
本申请中，第二SSB可以理解为在第一SSB基础上又冗余配置的SSB，其也可以用于终端设备小区接入，第二SSB也可以称为冗余SSB、备用SSB等，第二SSB可以用于 指示冗余公共信道的时频位置。冗余公共信道包括第二同步/物理广播信道、第二控制信道和第二接入信道中至少一个。其中，第二同步/物理广播信道包括第二P-SCH、第二S-SCH和第二PBCH信道，第二控制信道包括第二PDCCH和第二PUCCH，第二接入信道主要包括第二PRACH。In this application, the second SSB can be understood as an SSB configured redundantly on the basis of the first SSB, which can also be used for terminal device cell access, and the second SSB can also be called a redundant SSB, a backup SSB, etc. The two SSBs can be used to indicate the time-frequency position of the redundant common channel. The redundant common channel includes at least one of a second synchronization/physical broadcast channel, a second control channel, and a second access channel. Wherein, the second synchronous/physical broadcast channel includes the second P-SCH, the second S-SCH and the second PBCH channel, the second control channel includes the second PDCCH and the second PUCCH, and the second access channel mainly includes the second PRACH .
可选地，第二SSB与第一SSB可以具有相同的时频图案，例如，如图2所示，包括PSS、SSS和PBCH。其中，第二SSB中的PSS和SSS可以用于终端设备时频同步，第二SSB中的PBCH也会承载MIB信息，该MIB信息所包括的信元可以与第一SSB的MIB信息所包括的信元相同，即，如表1所示。Optionally, the second SSB and the first SSB may have the same time-frequency pattern, for example, as shown in FIG. 2 , including PSS, SSS and PBCH. Wherein, the PSS and SSS in the second SSB can be used for time-frequency synchronization of the terminal equipment, and the PBCH in the second SSB will also carry MIB information, and the information elements included in the MIB information can be the same as those included in the MIB information in the first SSB The cells are the same, ie as shown in Table 1.
通过与第一SSB相同的方式，第二SSB所携带的信息可以指示冗余公共信道的时频位置，包括冗余CORESET#0、冗余PDCCH(即为第二PDCCH)、冗余PRACH(即为第二PRACH)、冗余common PUCCH(即第二PUCCH)的时频位置以及冗余初始BWP的起始频率位置和带宽大小。其中，冗余CORESET#0可以用于发送***消息、寻呼消息，且冗余CORESET#0是随机接入过程传输消息2(Msg2)和消息4(Msg4)的PDCCH的频率资源集，冗余PRACH用于接入过程中终端设备发送消息1(Msg1)，冗余初始BWP包括初始DL BWP和初始UL BWP，网络设备向终端设备发送的RMSI、Msg2、Msg4必须在初始激活DL BWP内传输，终端设备向网络设备发送消息3(Msg3)、Msg4的反馈信息必须在初始激活UL BWP内传输，终端设备初始接入过程中的PRACH资源也必须位于初始激活UL BWP内。In the same way as the first SSB, the information carried by the second SSB can indicate the time-frequency position of the redundant common channel, including redundant CORESET#0, redundant PDCCH (that is, the second PDCCH), redundant PRACH (that is, is the second PRACH), the time-frequency position of the redundant common PUCCH (that is, the second PUCCH), and the starting frequency position and bandwidth size of the redundant initial BWP. Among them, redundant CORESET#0 can be used to send system messages and paging messages, and redundant CORESET#0 is the frequency resource set of the PDCCH for transmitting message 2 (Msg2) and message 4 (Msg4) in the random access procedure, redundant PRACH is used for the terminal device to send message 1 (Msg1) during the access process. The redundant initial BWP includes the initial DL BWP and the initial UL BWP. The RMSI, Msg2, and Msg4 sent by the network device to the terminal device must be transmitted within the initial activation DL BWP. The feedback information of message 3 (Msg3) and Msg4 sent by the terminal device to the network device must be transmitted in the initial activation UL BWP, and the PRACH resource during the initial access process of the terminal device must also be located in the initial activation UL BWP.
应理解，第一SSB和第二SSB具体的指示方式是相同的，冗余公共信道的时频位置和主公共信道的时频位置不同，可以理解为第二SSB和第一SSB所携带的信息的具体内容是不同的。It should be understood that the specific indication methods of the first SSB and the second SSB are the same, and the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel, which can be understood as the information carried by the second SSB and the first SSB The specific content is different.
还应理解，上述仅为示例，第二SSB指示冗余公共信道的时频位置的具体方式可以参照本领域技术人员研发的技术或者协议规定，本申请不作限定。It should also be understood that the foregoing is only an example, and the specific manner in which the second SSB indicates the time-frequency position of the redundant common channel may refer to technologies or protocols developed by those skilled in the art, and this application does not make a limitation thereto.
可选地，第二SSB与子载波是对齐的。Optionally, the second SSB is aligned with the subcarrier.
应理解，网络设备发送第二SSB时，第二SSB的中心频点可以通过GSCN标识，换言之，第二SSB与同步栅格是对齐的。此外，第二SSB的中心频率位置的计算方式满足标准TS38.104的规定。It should be understood that when the network device sends the second SSB, the center frequency point of the second SSB may be identified by the GSCN, in other words, the second SSB is aligned with the synchronization grid. In addition, the calculation method of the center frequency position of the second SSB meets the requirements of the standard TS38.104.
第二SSB可按照与第一SSB相同的周期下发，在第一SSB时域和波束发完后，第二SSB按类似的波束和时域映射方式发送。第二SSB的周期信息可以由SIB1信息元素ServingCellConfigCommonSIB中参数ssb-periodicityServingCell定义，时域图案(Pattern)可在不同时隙(slot)位置。The second SSB can be sent at the same period as the first SSB, and after the first SSB time domain and beam are sent, the second SSB is sent in a similar beam and time domain mapping manner. The period information of the second SSB can be defined by the parameter ssb-periodicityServingCell in the SIB1 information element ServingCellConfigCommonSIB, and the time domain pattern (Pattern) can be in different slot positions.
图5是本申请提供的一种第一SSB和第二SSB的时域位置的示意图。如图5所示，以小于2.4GHz的频段为例说明，第一SSB共4个，4个第一SSB组成第一SSB块(block)，在时域上第一SSB块占用时隙(slot)0和时隙1，第一SSB块对应为4T4R波束，每个SSB对应的SSB索引(Index)为0、1、2、3，即SSB#0、SSB#1、SSB#2、SSB#3，网络设备可以为每个SSB关联发射位置。SSB#0位于时隙0的第2至5个符号，SSB#1位于时隙0的第8至11个符号，SSB#2位于时隙1的第2至5个符号，SSB#3位于时隙1的第8至11个符号，即SSB#0、SSB#1、SSB#2、SSB#3的起始符号分别为2、8、16、22。类似地，第二SSB共4个，4个第二SSB组成第二SSB块，在时域上第二SSB块占用时 隙2和时隙3，第二SSB块中的每个SSB对应的SSB索引为4、5、6、7，即SSB#4、SSB#5、SSB#6、SSB#7，SSB#4位于时隙2的第2至5个符号，SSB#5位于时隙2的第8至11个符号，SSB#6位于时隙3的第2至5个符号，SSB#7位于时隙3的第8至11个符号，即SSB#4、SSB#5、SSB#6、SSB#7的起始符号分别为30、36、44、50。Fig. 5 is a schematic diagram of time-domain positions of a first SSB and a second SSB provided by the present application. As shown in Figure 5, taking the frequency band less than 2.4 GHz as an example, there are 4 first SSBs in total, and the 4 first SSBs form the first SSB block (block), and the first SSB block occupies a time slot (slot) in the time domain. )0 and time slot 1, the first SSB block corresponds to a 4T4R beam, and the SSB index (Index) corresponding to each SSB is 0, 1, 2, 3, namely SSB#0, SSB#1, SSB#2, SSB# 3. The network device can associate a transmit location for each SSB. SSB#0 is located in the 2nd to 5th symbols of slot 0, SSB#1 is located in the 8th to 11th symbols of slot 0, SSB#2 is located in the 2nd to 5th symbols of slot 1, SSB#3 is located in the The 8th to 11th symbols of slot 1, that is, the starting symbols of SSB#0, SSB#1, SSB#2, and SSB#3 are 2, 8, 16, and 22, respectively. Similarly, there are 4 second SSBs in total, and the 4 second SSBs form the second SSB block. In the time domain, the second SSB block occupies time slot 2 and time slot 3, and each SSB in the second SSB block corresponds to the SSB Indexes are 4, 5, 6, 7, namely SSB#4, SSB#5, SSB#6, SSB#7, SSB#4 is located in the 2nd to 5th symbols of slot 2, SSB#5 is located in the slot 2 The 8th to 11th symbols, SSB#6 is located in the 2nd to 5th symbols of time slot 3, and SSB#7 is located in the 8th to 11th symbols of time slot 3, that is, SSB#4, SSB#5, SSB#6, The starting symbols of SSB#7 are 30, 36, 44, 50 respectively.
应理解，每一个SSB块都可以独立解码，并且终端设备解析出一个SSB之后，可以获取小区ID、***帧号(systemframenumber，SFN)、SSB索引等信息，SSB索引类似于波束ID。It should be understood that each SSB block can be independently decoded, and after the terminal device parses out an SSB, it can obtain information such as cell ID, system frame number (SFN), SSB index, and the SSB index is similar to the beam ID.
还应理解，在实际应用中，针对3GHz以下的频段，最大可以定义4个SSB块，对于3GHz～6GHz的频段，最大可以定义8个SSB块，针对6GHz以上的频段，最大可以定义64个SSB块。It should also be understood that in practical applications, a maximum of 4 SSB blocks can be defined for frequency bands below 3 GHz, a maximum of 8 SSB blocks can be defined for frequency bands from 3 GHz to 6 GHz, and a maximum of 64 SSB blocks can be defined for frequency bands above 6 GHz. piece.
S230，终端设备根据第二SSB确定冗余公共信道的时频位置。S230, the terminal device determines the time-frequency position of the redundant common channel according to the second SSB.
终端设备接收到第二SSB后，会根据第二SSB指示的信息确定冗余公共信道的时频位置，换言之，该第二SSB可以用于终端设备进行小区接入，该冗余公共信道可以作为备用公共信道，在主公共信道发生干扰时，终端设备利用冗余公共信道完成初始接入。After receiving the second SSB, the terminal device will determine the time-frequency position of the redundant common channel according to the information indicated by the second SSB. In other words, the second SSB can be used by the terminal device to perform cell access, and the redundant common channel can be used as The backup common channel, when the main common channel interferes, the terminal device uses the redundant common channel to complete the initial access.
具体而言，终端设备确定冗余公共信道的时频位置，包括但不限于根据第二SSB携带的MIB信息，获得冗余CORESET#0、冗余PDCCH(即为第二PDCCH)、冗余PRACH(即为第二PRACH)、冗余common PUCCH(即第二PUCCH)的时频位置以及冗余初始BWP的起始频率位置和带宽大小。Specifically, the terminal device determines the time-frequency position of the redundant common channel, including but not limited to obtaining redundant CORESET#0, redundant PDCCH (that is, the second PDCCH), and redundant PRACH according to the MIB information carried by the second SSB. (that is, the second PRACH), the time-frequency position of the redundant common PUCCH (that is, the second PUCCH), and the starting frequency position and bandwidth size of the redundant initial BWP.
本申请中，网络设备不仅会向终端设备发送第一SSB，还会发送第二SSB，在终端设备不能成功接收或解调第一SSB的情况下，终端设备可以接收并解析第二SSB，根据第二SSB确定冗余公共信道的时频位置。也就是说，使得终端设备在主公共信道发生干扰的情况下，可以通过冗余公共信道接入网络，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。In this application, the network device will not only send the first SSB to the terminal device, but also send the second SSB. If the terminal device cannot successfully receive or demodulate the first SSB, the terminal device can receive and parse the second SSB, according to The second SSB determines the time-frequency location of the redundant common channel. That is to say, when the main public channel interferes, the terminal equipment can access the network through the redundant public channel, which can improve the anti-interference ability of the public channel, and realize the normal operation of the communication system when there is interference in the working frequency band. Work.
可选地，该第二SSB还可以用于终端设备执行时频跟踪(或称时频同步)、波束管理(beam management)、无线资源管理(radio resource management，RRM)测量、无线链路监控(radio link monitoring，RLM)测量、信道状态信息(channel state information，CSI)测量等。Optionally, the second SSB may also be used by the terminal device to perform time-frequency tracking (or called time-frequency synchronization), beam management (beam management), radio resource management (radio resource management, RRM) measurement, radio link monitoring ( radio link monitoring (RLM) measurement, channel state information (channel state information, CSI) measurement, etc.
可选地，该方法200还包括：S240，网络设备确定第二时频资源的位置，该第二时频资源用于发送该第二SSB，且该第二SSB与用于发送第一SSB的第一时频资源不同。Optionally, the method 200 further includes: S240, the network device determines a location of a second time-frequency resource, the second time-frequency resource is used to send the second SSB, and the second SSB is the same as the location of the second SSB used to send the first SSB The first time-frequency resources are different.
在一种实现方式中，网络设备可以根据预设时长和预设频率范围内的干扰状态确定第二时频资源的位置。其中，该预设频率范围可以是网络设备的工作频率范围。In an implementation manner, the network device may determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range. Wherein, the preset frequency range may be the working frequency range of the network device.
应理解，在这种情况下，网络设备发送的第二SSB可以为1个。It should be understood that, in this case, the number of second SSBs sent by the network device may be one.
网络设备可以扫描一段时间工作频率范围内的干扰和底噪的变化规律，在扫描的时间段内保持不发射功率、不进行调度，即只收听不发射，根据该频率范围内的每个RB粒度的干扰底噪情况确定冗余公共信道的时频位置，该冗余公共信道的视频位置不包括有干扰的频域资源位置和避开有干扰的时隙，并且，在未发生干扰的时频资源选择第二时频资源，用于发送第二SSB。也就是说，在未发生干扰的时频位置发送第二SSB，通过该第二SSB指示冗余公共信道的频域、时域位置。The network device can scan the change law of interference and noise floor within the working frequency range for a period of time, and keep no transmission power and no scheduling during the scanning period, that is, only listen but not transmit, according to the granularity of each RB within the frequency range The noise floor of the interference determines the time-frequency position of the redundant common channel. The video position of the redundant common channel does not include the frequency domain resource position with interference and avoids the time slot with interference, and, in the time-frequency position where no interference occurs The resource selects a second time-frequency resource for sending the second SSB. That is to say, the second SSB is sent at the time-frequency position where no interference occurs, and the frequency domain and time domain positions of the redundant common channel are indicated by the second SSB.
因此，本申请实施例中，网络设备不仅会发送第一SSB，还会根据频谱扫描结果选择 未发生干扰的时频位置发送第二SSB，使得终端设备在获取第一SSB的信息失败时，还能够获得第二SSB的信息。通过这种方式，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。Therefore, in this embodiment of the application, the network device will not only send the first SSB, but also select a time-frequency position where no interference occurs to send the second SSB according to the spectrum scanning results, so that when the terminal device fails to obtain the information of the first SSB, it will also send the second SSB. The information of the second SSB can be obtained. In this way, the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
在一种实现方式中，该方法还包括：网络设备根据冗余公共信道的时频位置和主公共信道的时频位置调度该终端设备。In an implementation manner, the method further includes: the network device scheduling the terminal device according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
具体而言，由于网络设备向终端设备配置了冗余公共信道，网络设备在资源调度时也会根据主公共信道和冗余公共信道时域和频域资源的占用来安排上下行资源调度和用户设备调度，避免与冗余公共信道资源的冲突。Specifically, since the network equipment configures redundant public channels to the terminal equipment, the network equipment will also arrange uplink and downlink resource scheduling and user resource scheduling according to the occupancy of time domain and frequency domain resources of the main public channel and redundant public channel during resource scheduling. Device scheduling to avoid conflicts with redundant common channel resources.
在一种实现方式中，网络设备可以获取来自网络管理***的配置信息，该配置信息包括跳频参数，根据该跳频参数可以获得第二时频资源的位置。In an implementation manner, the network device may obtain configuration information from the network management system, where the configuration information includes a frequency hopping parameter, and the location of the second time-frequency resource may be obtained according to the frequency hopping parameter.
应理解，在这种情况下，网络设备发送的第二SSB可以为多个。It should be understood that, in this case, there may be multiple second SSBs sent by the network device.
具体而言，该跳频参数可以为跳频序列。该跳频序列也可以称伪随机信号、伪随机序列或伪随机码，通过跳频序列可以控制第二SSB所在的频域位置动态变化，在整个宽频的小区工作带宽频域范围内，避开已有信道占用频率之外均可跳频。由于第二SSB的频域位置受指定伪随机序列控制，具备伪随机性，可以避免被持续监听和跟踪干扰。Specifically, the frequency hopping parameter may be a frequency hopping sequence. The frequency hopping sequence can also be called a pseudo-random signal, a pseudo-random sequence or a pseudo-random code. Through the frequency hopping sequence, the frequency domain position where the second SSB is located can be dynamically changed, and within the frequency domain of the entire broadband cell working bandwidth, avoid Frequency hopping can be performed outside of the frequencies occupied by existing channels. Since the frequency domain position of the second SSB is controlled by a designated pseudo-random sequence, it has pseudo-randomness, and can avoid continuous monitoring and tracking interference.
可选地，该跳频序列可以为m序列或Gold序列，其中，m序列是由线性反馈移位寄存器(linear feedback shift register，LFSR)产生的周期最长的序列，寄存器的阶数为n的LFSR可以输出长度为2 n-1的m序列。Gold序列是由两个码长相等、码时钟速率相同的m序列优选对通过模2相加而构成的，m序列优选对是m序列集合中相关函数最大值的绝对值小于某个值的两个m序列。通过为网络设备配置相应的序列发生器，网络设备可以生成相应的跳频序列。 Optionally, the frequency hopping sequence may be an m-sequence or a Gold sequence, wherein the m-sequence is a sequence with the longest period generated by a linear feedback shift register (linear feedback shift register, LFSR), and the order of the register is n LFSR can output m-sequences of length 2n -1. The Gold sequence is composed of two optimal m-sequence pairs with the same code length and the same code clock rate through modulo 2 addition. an m-sequence. By configuring a corresponding sequence generator for the network device, the network device can generate a corresponding frequency hopping sequence.
可选地，该跳频参数也可以为跳频周期，即第二SSB所在的频域位置按照预定义的跳频周期动态变化。例如，该跳频周期可以为5Hz、10Hz等。Optionally, the frequency hopping parameter may also be a frequency hopping period, that is, the frequency domain position where the second SSB is located dynamically changes according to a predefined frequency hopping period. For example, the frequency hopping period may be 5 Hz, 10 Hz and so on.
应理解，在变化的频域上将第二SSB发送出去，即每一个发送第二SSB的位置都可以称为第二时频资源。It should be understood that the second SSB is sent in a changing frequency domain, that is, each position where the second SSB is sent may be called a second time-frequency resource.
还应理解，网络设备发送第一SSB的时频资源，也即终端设备接收第一SSB的时频资源，可以称为第一时频资源，第一时频资源和第二时频资源是不完全重合的，即网络设备发送第一SSB的时频位置和发送第二SSB的时频位置是不同的。通过这种方式，当第一时频资源发生干扰时，可以通过第二时频资源接收第二SSB，并通过冗余公共信道进行小区接入。It should also be understood that the time-frequency resource for the network device to send the first SSB, that is, the time-frequency resource for the terminal device to receive the first SSB, may be referred to as the first time-frequency resource, and the first time-frequency resource and the second time-frequency resource are different. Completely coincident, that is, the time-frequency position at which the network device transmits the first SSB is different from the time-frequency position at which the network device transmits the second SSB. In this way, when the first time-frequency resource interferes, the second SSB can be received through the second time-frequency resource, and cell access can be performed through the redundant common channel.
可选地，可以通过网络管理***配置网络设备的工作模式，该工作模式包括频谱扫描模式和跳频模式。当配置了频谱扫描模式，网络设备可以根据预设时长和预设频率范围内的干扰状态确定第二时频资源的位置。当配置了跳频模式，还会为网络设备配置跳频参数，然后网络设备可以按照预定义的跳频参数动态发送第二SSB。Optionally, the working mode of the network device can be configured through the network management system, and the working mode includes a spectrum scanning mode and a frequency hopping mode. When the spectrum scanning mode is configured, the network device can determine the position of the second time-frequency resource according to the preset duration and the interference state within the preset frequency range. When the frequency hopping mode is configured, frequency hopping parameters will also be configured for the network device, and then the network device can dynamically send the second SSB according to the predefined frequency hopping parameters.
因此，本申请实施例中，网络设备不仅会发送第一SSB，还会根据跳频参数动态发送多个第二SSB，使得终端设备在获取第一SSB的信息失败时，还能够获得至少一个第二SSB的信息。通过这种方式，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。Therefore, in this embodiment of the application, the network device will not only send the first SSB, but also dynamically send multiple second SSBs according to the frequency hopping parameters, so that the terminal device can obtain at least one second SSB when it fails to obtain the information of the first SSB. II SSB information. In this way, the anti-interference ability of the public channel can be improved, and the normal operation of the communication system can be realized in the case of interference in the working frequency band.
在一种实现方式中，该方法还包括：终端设备按照全局同步信道号(global  synchronization channel number，GSCN)频点进行盲检，获得第二SSB。In an implementation manner, the method further includes: the terminal device performs blind detection according to a global synchronization channel number (global synchronization channel number, GSCN) frequency point to obtain the second SSB.
当网络设备已经检测了干扰状态，并指示未发生干扰的冗余公共信道时，网络设备指示的第二SSB为1个，终端设备可以在GSCN频点进行盲检，从而获得第二SSB。When the network device has detected the interference status and indicates a redundant common channel without interference, the network device indicates one second SSB, and the terminal device can perform blind detection at the GSCN frequency to obtain the second SSB.
以0～3000Mh频段为例，5G终端可以从低频到高频搜索SSB的中心频点：1.25MHz,1.35MHz…，一旦搜索到一个频点并获得同步后，就驻留在该小区上进入后续流程，如读取MIB/SIB1***消息等。若捕获失败或信息无法解调则跳到下一个候选位置。5G终端可以根据本终端频段的支持能力，预先配置有效的GSCN来更快速地搜索。Taking the 0-3000Mh frequency band as an example, 5G terminals can search for the center frequency points of SSB from low frequency to high frequency: 1.25MHz, 1.35MHz... Once a frequency point is searched and synchronized, it will reside in the cell and enter the follow-up Processes, such as reading MIB/SIB1 system messages, etc. If the capture fails or the information cannot be demodulated, skip to the next candidate position. 5G terminals can pre-configure valid GSCNs to search more quickly according to the support capabilities of the terminal's frequency band.
在一种实现方式中，该方法还包括：终端设备获取跳频参数，并根据跳频参数确定第二时频资源的位置，然后在第二时频资源上接收第二SSB。In an implementation manner, the method further includes: the terminal device acquires a frequency hopping parameter, determines a position of the second time-frequency resource according to the frequency hopping parameter, and then receives the second SSB on the second time-frequency resource.
当网络设备通过跳频参数发送动态的多个第二SSB时，终端设备可以使用同样或相似的跳频参数获得第二时频资源，然后正确接收第二SSB。When the network device sends multiple dynamic second SSBs through frequency hopping parameters, the terminal device can use the same or similar frequency hopping parameters to obtain the second time-frequency resources, and then correctly receive the second SSBs.
具体而言，可以预先在终端设备的寄存器中写入该跳频参数，也可通过定制的全球用户识别卡(universal subscriber identity module，USIM)加密写入该跳频参数。终端盲搜索期间只需捕获***主同步即可设置终端设备的晶振时钟与***时钟同步，从而确保终端设备的序列发生器与***对齐，然后跟踪跳频序列，获得至少一个未发生干扰的信道位置发送的第二SSB。Specifically, the frequency hopping parameter can be written in the register of the terminal device in advance, or can be encrypted and written into the frequency hopping parameter through a customized universal subscriber identity module (USIM). During the terminal blind search, only need to capture the main synchronization of the system to set the crystal oscillator clock of the terminal device to synchronize with the system clock, so as to ensure that the sequence generator of the terminal device is aligned with the system, and then track the frequency hopping sequence to obtain at least one channel position without interference The second SSB sent.
应理解，在实际应用中，主公共信道、第一时频资源的位置的干扰情况和两者的关系会包括以下情况：It should be understood that in practical applications, the interference situation of the main common channel and the position of the first time-frequency resource and the relationship between the two may include the following situations:
情况一、主公共信道的时频位置发生干扰，且第一时频资源和主公共信道的时频位置无重叠，那UE可以获得第一SSB以及主公共信道的时频位置的具体信息，只是再利用主公共信道进行小区接入时会接入失败。 Case 1, the time-frequency position of the main common channel interferes, and the first time-frequency resource and the time-frequency position of the main common channel do not overlap, then the UE can obtain the specific information of the first SSB and the time-frequency position of the main common channel, only When the main common channel is used for cell access, the access will fail.
情况二、第一时频资源的位置发生干扰，此时无论第一时频资源的位置和主公共信道的时频位置是否有重叠，UE均无法正确接收或解调第一SSB，因此无法获得主公共信道的时频位置的具体信息。Case 2: Interference occurs at the position of the first time-frequency resource. At this time, regardless of whether the position of the first time-frequency resource overlaps with the time-frequency position of the main common channel, the UE cannot correctly receive or demodulate the first SSB, so it cannot obtain Specific information on the time-frequency position of the main common channel.
本申请通过发送第二SSB和通过第二SSB指示冗余公共信道的时频位置，使得SSB和公共信道都形成冗余，在第一时频资源的位置发生干扰或者主公共信道的时频位置发生干扰的情况下，终端设备可以通过第二SSB和冗余公共信道接入小区，能够提高公共信道的抗干扰能力，在工作频段内有干扰的情况下实现通信***的正常工作。This application sends the second SSB and indicates the time-frequency position of the redundant common channel through the second SSB, so that both the SSB and the common channel form redundancy, and interference occurs at the position of the first time-frequency resource or the time-frequency position of the main common channel In the event of interference, the terminal device can access the cell through the second SSB and the redundant common channel, which can improve the anti-interference ability of the common channel, and realize the normal operation of the communication system when there is interference in the working frequency band.
在一种实现方式中，该主公共信道的时频位置包括第一时频资源的位置，该冗余公共信道的时频位置包括第二时频资源的位置。In an implementation manner, the time-frequency position of the main common channel includes the position of the first time-frequency resource, and the time-frequency position of the redundant common channel includes the position of the second time-frequency resource.
以上结合图1至图5详细说明了本申请实施例提供的通信方法。下面将结合图6至图8介绍本申请实施例提供的通信装置。The communication method provided by the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 5 . The communication device provided by the embodiment of the present application will be introduced below with reference to FIG. 6 to FIG. 8 .
图6是本申请实施例提供的一种通信装置的示意性框图。如图6所示，该装置300可以包括收发单元310，收发单元310可以与外部进行通信。可选地，该装置300还可以包括处理单元320，处理单元320用于进行数据处理。收发单元310还可以称为通信接口或通信单元。Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 6, the apparatus 300 may include a transceiver unit 310, and the transceiver unit 310 may communicate with the outside. Optionally, the apparatus 300 may further include a processing unit 320, and the processing unit 320 is configured to perform data processing. The transceiver unit 310 may also be called a communication interface or a communication unit.
在一种实现方式中，该装置300可以为网络设备，也可以为配置在网络设备中的部件(例如，单元、模块、芯片或芯片***)。In an implementation manner, the apparatus 300 may be a network device, or may be a component configured in the network device (for example, a unit, a module, a chip, or a chip system).
收发单元310，用于发送第一同步信号块SSB，该第一SSB用于指示主公共信道的时 频位置；收发单元310还用于：发送第二SSB，该第二SSB用于指示冗余公共信道的时频位置，该冗余公共信道的时频位置和主公共信道的时频位置不同。The transceiver unit 310 is configured to send the first synchronization signal block SSB, the first SSB is used to indicate the time-frequency position of the main common channel; the transceiver unit 310 is also used to: send the second SSB, the second SSB is used to indicate the redundancy The time-frequency position of the common channel, the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
可选地，处理单元320用于：确定第二时频资源的位置，该第二时频资源用于发送第二SSB，该第二时频资源和第一时频资源不完全重合，该第一时频资源用于发送第一SSB。Optionally, the processing unit 320 is configured to: determine a position of a second time-frequency resource, the second time-frequency resource is used to send the second SSB, the second time-frequency resource does not completely overlap with the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource. A time-frequency resource is used for sending the first SSB.
可选地，处理单元320具体用于：根据预设时长和预设频率范围内的干扰状态确定该第二时频资源的位置。Optionally, the processing unit 320 is specifically configured to: determine the position of the second time-frequency resource according to a preset duration and an interference state within a preset frequency range.
可选地，处理单元320还用于：根据冗余公共信道的时频位置和主公共信道的时频位置调度终端设备。Optionally, the processing unit 320 is further configured to: schedule terminal devices according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
可选地，处理单元320还用于：获取配置信息，配置信息包括跳频参数；根据该跳频参数确定第二时频资源的位置。Optionally, the processing unit 320 is further configured to: acquire configuration information, where the configuration information includes a frequency hopping parameter; and determine a position of the second time-frequency resource according to the frequency hopping parameter.
可选地，该跳频参数包括跳频序列或跳频周期。Optionally, the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
可选地，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。Optionally, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
应理解，这里的装置300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300可以具体为上述方法200实施例中的网络设备，装置300可以用于执行上述方法200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。It should be understood that the device 300 here is embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality. In an optional example, those skilled in the art can understand that the apparatus 300 may specifically be the network device in the above-mentioned embodiment of the method 200, and the apparatus 300 may be used to execute each process corresponding to the network device in the above-mentioned embodiment of the method 200 and/or or steps, in order to avoid repetition, no more details are given here.
应理解，上述收发单元310可以包括接收单元311和发送单元312，其中，接收单元311用于执行上述收发单元310中的接收功能，发送单元312用于执行上述收发单元310中的发送功能，例如，向终端设备发送第一SSB和第二SSB。It should be understood that the above-mentioned transceiver unit 310 may include a receiving unit 311 and a sending unit 312, wherein the receiving unit 311 is used to perform the receiving function in the above-mentioned transceiver unit 310, and the sending unit 312 is used to perform the sending function in the above-mentioned transceiver unit 310, for example , sending the first SSB and the second SSB to the terminal device.
图7是本申请实施例提供的一种通信装置的示意性框图。如图7所示，该装置400可以包括收发单元410和处理单元420，收发单元410可以与外部进行通信，处理单元420用于进行数据处理。收发单元410还可以称为通信接口或通信单元。Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 7 , the device 400 may include a transceiver unit 410 and a processing unit 420 , the transceiver unit 410 may communicate with the outside, and the processing unit 420 is used for data processing. The transceiver unit 410 may also be called a communication interface or a communication unit.
在一种实现方式中，该装置400可以为网络设备，也可以为配置在网络设备中的部件(例如，单元、模块、芯片或芯片***)。In an implementation manner, the apparatus 400 may be a network device, or may be a component configured in the network device (for example, a unit, a module, a chip, or a chip system).
收发单元410，用于接收第二同步信号块SSB，处理单元420，用于根据第二SSB确定冗余公共信道的时频位置，该冗余公共信道的时频位置和主公共信道的时频位置不同，该主公共信道的时频位置根据第一SSB确定。The transceiver unit 410 is used to receive the second synchronization signal block SSB, and the processing unit 420 is used to determine the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel and the time-frequency of the main common channel The positions are different, and the time-frequency position of the main common channel is determined according to the first SSB.
可选地，该处理单元420还用于：获取跳频参数；根据该跳频参数确定第二时频资源的位置，该第二时频资源用于接收第二SSB。Optionally, the processing unit 420 is further configured to: acquire a frequency hopping parameter; and determine a position of a second time-frequency resource according to the frequency hopping parameter, where the second time-frequency resource is used for receiving the second SSB.
可选地，该跳频参数包括跳频序列或跳频周期。Optionally, the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
可选地，该收发单元410还用于：在第一时频资源接收第一SSB，该第二时频资源和该第一时频资源不完全重合。Optionally, the transceiving unit 410 is further configured to: receive the first SSB in the first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource.
可选地，该冗余公共信道包括以下至少一项：同步/物理广播信道、控制信道和接入信道。Optionally, the redundant common channel includes at least one of the following: a synchronous/physical broadcast channel, a control channel, and an access channel.
应理解，这里的装置400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400可以具体为上述方法200实施例中的终端设备，装置400可以用于执行上述方法200实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。It should be understood that the apparatus 400 here is embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality. In an optional example, those skilled in the art can understand that the apparatus 400 may specifically be the terminal device in the above-mentioned embodiment of the method 200, and the apparatus 400 may be used to execute each process corresponding to the terminal device in the above-mentioned embodiment of the method 200 and/or or steps, in order to avoid repetition, no more details are given here.
应理解，上述收发单元410可以包括接收单元411和发送单元412，其中，接收单元411用于执行上述收发单元410中的接收功能，例如，接收来自网络设备的第二SSB，发送单元412用于执行上述收发单元410中的发送功能。It should be understood that the above-mentioned transceiver unit 410 may include a receiving unit 411 and a sending unit 412, wherein the receiving unit 411 is configured to perform the receiving function in the above-mentioned transceiver unit 410, for example, receiving the second SSB from the network device, and the sending unit 412 is used to Execute the sending function in the above-mentioned transceiver unit 410 .
图8是根据本申请实施例提供的一种通信装置500的结构框图。如图8所示，装置500包括：处理器510、存储器520和收发器530。该处理器510与存储器520耦合，用于执行存储器520中存储的指令，以控制收发器530发送信号和/或接收信号。Fig. 8 is a structural block diagram of a communication device 500 provided according to an embodiment of the present application. As shown in FIG. 8 , the device 500 includes: a processor 510 , a memory 520 and a transceiver 530 . The processor 510 is coupled with the memory 520 for executing instructions stored in the memory 520 to control the transceiver 530 to send signals and/or receive signals.
应理解，上述处理器510和存储器520可以合成一个处理装置，处理器510用于执行存储器520中存储的程序代码来实现上述功能。具体实现时，该存储器520也可以集成在处理器510中，或者独立于处理器510。应理解，处理器510也可以和前面通信装置中的各个处理单元相对应，收发器530可以和前面通信装置中的各个接收单元和发送单元相对应。It should be understood that the foregoing processor 510 and memory 520 may be combined into one processing device, and the processor 510 is configured to execute program codes stored in the memory 520 to implement the foregoing functions. During specific implementation, the memory 520 may also be integrated in the processor 510 , or be independent of the processor 510 . It should be understood that the processor 510 may also correspond to each processing unit in the foregoing communication device, and the transceiver 530 may correspond to each receiving unit and sending unit in the foregoing communication device.
还应理解，收发器530可以包括接收器(或者称，接收机)和发射器(或者称，发射机)。收发器还可以进一步包括天线，天线的数量可以为一个或多个。收发器还可以是通信接口或者接口电路。It should also be understood that the transceiver 530 may include a receiver (or called a receiver) and a transmitter (or called a transmitter). The transceiver may further include antennas, and the number of antennas may be one or more. A transceiver may also be a communication interface or interface circuit.
具体地，该通信装置500可对应于根据本申请实施例的方法200中的终端设备，或者，方法200中的网络设备。应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。Specifically, the communication apparatus 500 may correspond to the terminal device in the method 200 according to the embodiment of the present application, or the network device in the method 200 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
当该通信装置500为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路或通信接口；处理单元可以为该芯片上集成的处理器或者微处理器或者集成电路。When the communication device 500 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.
在一种可能的设计中，装置500可以被替换为芯片装置，例如可以为可用于装置中的通信芯片，用于实现装置中处理器510的相关功能。该芯片装置可以为实现相关功能的现场可编程门阵列，专用集成芯片，***芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。In a possible design, the device 500 can be replaced by a chip device, for example, a communication chip that can be used in the device to implement related functions of the processor 510 in the device. The chip device can be a field programmable gate array for realizing relevant functions, an application-specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chips . The chip may optionally include one or more memories for storing program codes, which enable the processor to implement corresponding functions when the codes are executed.
可选的，上述实施例中涉及的存储器与处理器可以是物理上相互独立的单元，或者，存储器也可以和处理器集成在一起。Optionally, the memory and the processor involved in the foregoing embodiments may be physically independent units, or the memory may also be integrated with the processor.
应理解，当上述装置300、400、500为芯片或者芯片***时，其收发器或者收发单元可以是输入输出接口，其中，接收器或者接收单元可以理解为输入接口，发送器或者发送单元可以理解为输出接口。It should be understood that when the above-mentioned devices 300, 400, and 500 are chips or chip systems, their transceivers or transceiver units may be input and output interfaces, wherein the receiver or receiving unit may be understood as an input interface, and the transmitter or sending unit may be understood as an input interface. for the output interface.
本申请实施例还提供了一种计算机可读存储介质，其上存储有用于实现上述方法实施例中的方法的计算机程序。当该计算机程序在计算机上运行时，使得该计算机可以实现上述方法实施例中的方法。The embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the above method embodiment is stored. When the computer program runs on the computer, the computer can implement the methods in the above method embodiments.
根据本申请实施例提供的方法，本申请提供一种计算机程序产品，包括计算机程序，当该计算机程序在计算机上运行时，使得该计算机可以执行上述方法实施例中的方法。According to the methods provided in the embodiments of the present application, the present application provides a computer program product, including a computer program, and when the computer program is run on a computer, the computer can execute the methods in the above method embodiments.
根据本申请实施例提供的方法，本申请还提供一种***，其包括前述的一个或多个终端设备以及一个或多个网络设备。According to the method provided in the embodiment of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。The network equipment in each of the above device embodiments corresponds completely to the terminal equipment and the network equipment or terminal equipment in the method embodiments, and the corresponding modules or units execute corresponding steps, for example, the communication unit (transceiver) executes the receiving or receiving in the method embodiments In the sending step, other steps besides sending and receiving may be performed by a processing unit (processor). For the functions of the specific units, reference may be made to the corresponding method embodiments. Wherein, there may be one or more processors.
在本说明书中使用的术语“部件”、“模块”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be components. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
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***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计 算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
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。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (19)

  1. 一种通信的方法，其特征在于，包括：A communication method, characterized by comprising:
    发送第一同步信号块SSB，所述第一SSB用于指示主公共信道的时频位置；Sending a first synchronization signal block SSB, where the first SSB is used to indicate the time-frequency position of the main common channel;
    发送第二SSB，所述第二SSB用于指示冗余公共信道的时频位置，所述冗余公共信道的时频位置和主公共信道的时频位置不同。Sending a second SSB, where the second SSB is used to indicate the time-frequency position of the redundant common channel, where the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel.
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：The method according to claim 1, further comprising:
    确定第二时频资源的位置，所述第二时频资源用于发送所述第二SSB，所述第二时频资源和第一时频资源不完全重合，所述第一时频资源用于发送所述第一SSB。determining a position of a second time-frequency resource, the second time-frequency resource is used to send the second SSB, the second time-frequency resource does not completely overlap with the first time-frequency resource, and the first time-frequency resource uses to send the first SSB.
  3. 根据权利要求2所述的方法，其特征在于，所述确定第二时频资源的位置，包括：The method according to claim 2, wherein said determining the position of the second time-frequency resource comprises:
    根据预设时长和预设频率范围内的干扰状态确定所述第二时频资源的位置。The location of the second time-frequency resource is determined according to a preset duration and an interference state within a preset frequency range.
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：The method according to claim 3, further comprising:
    根据所述冗余公共信道的时频位置和所述主公共信道的时频位置调度所述终端设备。Scheduling the terminal device according to the time-frequency position of the redundant common channel and the time-frequency position of the main common channel.
  5. 根据权利要求2所述的方法，其特征在于，所述方法还包括：The method according to claim 2, further comprising:
    获取配置信息，所述配置信息包括跳频参数；Obtain configuration information, where the configuration information includes frequency hopping parameters;
    所述确定第二时频资源的位置，包括：The determining the position of the second time-frequency resource includes:
    根据所述跳频参数确定所述第二时频资源的位置。Determine the location of the second time-frequency resource according to the frequency hopping parameter.
  6. 根据权利要求5所述的方法，其特征在于，所述跳频参数包括跳频序列或跳频周期。The method according to claim 5, wherein the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述冗余公共信道包括以下至少一项：The method according to any one of claims 1 to 6, wherein the redundant common channel comprises at least one of the following:
    同步/物理广播信道、控制信道和接入信道。Synchronous/Physical Broadcast Channels, Control Channels and Access Channels.
  8. 一种通信的方法，其特征在于，包括：A communication method, characterized by comprising:
    接收第二同步信号块SSB；receiving a second synchronization signal block SSB;
    根据所述第二SSB确定冗余公共信道的时频位置，所述冗余公共信道的时频位置和主公共信道的时频位置不同，所述主公共信道的时频位置根据第一SSB确定。Determine the time-frequency position of the redundant common channel according to the second SSB, the time-frequency position of the redundant common channel is different from the time-frequency position of the main common channel, and the time-frequency position of the main common channel is determined according to the first SSB .
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：The method according to claim 8, characterized in that the method further comprises:
    获取跳频参数；Get frequency hopping parameters;
    根据所述跳频参数确定第二时频资源的位置，所述第二时频资源用于接收所述第二SSB。determining a position of a second time-frequency resource according to the frequency hopping parameter, where the second time-frequency resource is used to receive the second SSB.
  10. 根据权利要求9所述的方法，其特征在于，所述跳频参数包括跳频序列或跳频周期。The method according to claim 9, wherein the frequency hopping parameters include a frequency hopping sequence or a frequency hopping period.
  11. 根据权利要求9或10所述的方法，其特征在于，所述方法还包括：The method according to claim 9 or 10, characterized in that the method further comprises:
    在第一时频资源接收所述第一SSB，所述第二时频资源和所述第一时频资源不完全重合。The first SSB is received on a first time-frequency resource, and the second time-frequency resource does not completely overlap with the first time-frequency resource.
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，所述冗余公共信道包括以下至少一项：The method according to any one of claims 8 to 11, wherein the redundant common channel includes at least one of the following:
    同步/物理广播信道、控制信道和接入信道。Synchronous/Physical Broadcast Channels, Control Channels and Access Channels.
  13. 一种通信装置，其特征在于，包括：用于执行如权利要求1至7中任一项所述的方法中各个步骤的单元。A communication device, characterized by comprising: a unit for performing each step in the method according to any one of claims 1 to 7.
  14. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，所述处理器用于执行存储器中存储的计算机程序或指令，使得所述通信设备执行如权利要求1至7中任一项所述的方法。A communication device, characterized in that it includes a processor, the processor is coupled to a memory, and the processor is used to execute a computer program or an instruction stored in the memory, so that the communication device performs any one of claims 1 to 7. one of the methods described.
  15. 一种通信装置，其特征在于，包括：用于执行如权利要求8至12中任一项所述的方法中各个步骤的单元。A communications device, characterized by comprising: a unit for executing each step in the method according to any one of claims 8 to 12.
  16. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，所述处理器用于执行存储器中存储的计算机程序或指令，使得所述通信设备执行如权利要求8至12中任一项所述的方法。A communication device, characterized in that it includes a processor, the processor is coupled to a memory, and the processor is used to execute computer programs or instructions stored in the memory, so that the communication device performs any one of claims 8 to 12. one of the methods described.
  17. 一种通信***，其特征在于，包括权利要求13或14所述的通信装置和权利要求15或16所述的通信装置。A communication system, characterized by comprising the communication device according to claim 13 or 14 and the communication device according to claim 15 or 16.
  18. 一种芯片***，其特征在于，包括：处理器，所述处理器用于执行存储器中的计算机程序或指令，以实现权利要求1至7中任一项所述的方法，或实现如权利要求8至12中任一项所述的方法。A chip system, characterized in that it includes: a processor, the processor is used to execute the computer program or instructions in the memory, so as to realize the method according to any one of claims 1 to 7, or to realize the method according to claim 8 The method described in any one of to 12.
  19. 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或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机执行如权利要求1至7中任一项所述的方法，或执行如权利要求8至12中任一项所述的方法。A computer-readable storage medium, characterized in that computer programs or instructions are stored on the computer-readable storage medium, and when the computer programs or instructions are run on a computer, the computer is made to perform the tasks described in claims 1 to 1. 7, or perform a method according to any one of claims 8 to 12.
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