WO2021203314A1 - Procédé et appareil de transmission de signal, et dispositif - Google Patents

Procédé et appareil de transmission de signal, et dispositif Download PDF

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Publication number
WO2021203314A1
WO2021203314A1 PCT/CN2020/083803 CN2020083803W WO2021203314A1 WO 2021203314 A1 WO2021203314 A1 WO 2021203314A1 CN 2020083803 W CN2020083803 W CN 2020083803W WO 2021203314 A1 WO2021203314 A1 WO 2021203314A1
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identifier
candidate
ssb
ssbs
candidate ssbs
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PCT/CN2020/083803
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English (en)
Chinese (zh)
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田文强
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080099416.7A priority Critical patent/CN115399016A/zh
Priority to PCT/CN2020/083803 priority patent/WO2021203314A1/fr
Publication of WO2021203314A1 publication Critical patent/WO2021203314A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of communication technology, and in particular to a signal transmission method, device and equipment.
  • the SSB includes: primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS), and physical broadcast channel (physical broadcast channel, PBCH).
  • primary synchronization signal primary synchronization signal
  • secondary synchronization signal secondary synchronization signal
  • physical broadcast channel physical broadcast channel, PBCH.
  • the network device sends the SSB, the SSB is sent in a beam sweeping manner, that is, the SSB is sent in turn on each beam.
  • the timing information indicated by the SSB sent on different beams is different, and the spatial information indicated by the SSB sent on different beams is also different. In this way, the terminal device can determine the timing information and the spatial information according to the received SSB.
  • the embodiments of the present application provide a signal transmission method, device, and equipment to enable terminal equipment to quickly discover/access a cell.
  • an embodiment of the present application provides a signal transmission method, including:
  • the terminal device receives a first synchronization signal block SSB, where the first SSB is one of a plurality of predefined candidate SSBs, at least two of the plurality of candidate SSBs have the same timing information, and the plurality of candidate SSBs Any two of the corresponding spatial information are different;
  • the terminal device determines the timing information and space information corresponding to the first SSB according to the first SSB.
  • an embodiment of the present application provides a signal transmission method, including:
  • the network device determines the target SSB to be transmitted according to a plurality of pre-defined candidate synchronization signal blocks SSB, at least two of the plurality of candidate SSBs have the same timing information, and any two of the plurality of candidate SSBs correspond to Different spatial information;
  • the network device sends the target SSB.
  • an embodiment of the present application provides a signal transmission device, which is applied to a terminal device, and includes: a receiving module and a processing module;
  • the receiving module is configured to receive a first synchronization signal block SSB, where the first SSB is one of a plurality of predefined candidate SSBs, and at least two of the plurality of candidate SSBs have the same timing information, so The spatial information corresponding to any two of the multiple candidate SSBs is different;
  • the processing module is configured to determine timing information and spatial information corresponding to the first SSB according to the first SSB.
  • an embodiment of the present application provides a signal transmission device, which is applied to a network device, and includes: a processing module and a sending module;
  • the processing module is configured to determine the target SSB to be transmitted according to a plurality of predefined candidate synchronization signal blocks SSB, at least two of the plurality of candidate SSBs have the same timing information, and among the plurality of candidate SSBs Any two corresponding spatial information of are different;
  • the sending module is used to send the target SSB.
  • an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method according to any one of the first aspect.
  • an embodiment of the present application provides a network device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method according to any one of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium having computer-executable instructions stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement any one of the first aspect. The method described in the item.
  • an embodiment of the present application provides a computer-readable storage medium having computer-executable instructions stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement any one of the second aspect. The method described in the item.
  • the network device determines the target SSB to be transmitted according to a plurality of predefined candidate SSBs. Among them, at least two of the plurality of candidate SSBs have the same timing information. Any two of the candidate SSBs correspond to different spatial information, so that the network device can send multiple SSBs with the same timing information at the same time. In this way, the time to complete a beam scan of the coverage area can be reduced, which is conducive to the rapid discovery of the terminal device /Access to the cell. In addition, since the multiple SSBs sent by the network device at the same time correspond to different spatial information, the network device and the terminal device can only transmit and receive data on a specific beam during subsequent access and data transmission, thereby saving resource overhead.
  • FIG. 1 is a schematic diagram of a communication system that may be involved in an embodiment of this application;
  • FIG. 2 is a schematic diagram of an SSB time-frequency resource provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of transmitting an SSB in a beam scanning manner according to an embodiment of the application
  • FIG. 4 is a schematic diagram of SSB transmission in the NR-U system provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the SSB index and the SSB candidate index in the NR-U system provided by an embodiment of the application;
  • FIG. 6 is a schematic flowchart of a signal transmission method provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of a possible SSB packet transmission mode provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of another possible SSB packet transmission mode provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a signal transmission device provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of another signal transmission device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system described in this application includes a non-standalone (NSA) 5G mobile communication system and/or a standalone (SA) 5G mobile communication system.
  • SA standalone
  • SA standalone
  • the technical solution provided in this application can also be applied to future communication systems, such as the 6th generation mobile networks (6G) communication system or even higher-level communication systems.
  • the communication system in the embodiments of the present application can be applied to carrier aggregation (CA) scenarios, can also be applied to dual connectivity (DC) scenarios, and can also be applied to standalone (SA) deployments.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • FIG. 1 is a schematic diagram of a communication system that may be involved in an embodiment of this application.
  • the communication system includes: network equipment and terminal equipment.
  • the network device and the terminal device communicate through a wireless network.
  • the transmission direction of the communication system is uplink transmission
  • the terminal device is the sending end and the network device is the receiving end.
  • the transmission direction of the communication system is downlink transmission
  • the network device is the sending end and the terminal device is the receiving end.
  • terminal equipment usually has a wireless transceiver function, and can also be referred to as user equipment (user equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal , Terminal, wireless communication equipment, user agent or user device, etc.
  • user equipment user equipment
  • UE user equipment
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile equipment user terminal
  • Terminal wireless communication equipment
  • user agent or user device etc.
  • the terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, and a personal digital processing unit (personal digital assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the public land mobile network (PLMN) network that will evolve in the future.
  • ST station
  • PDA personal digital assistant
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • land including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • First class can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (AR) ) Terminal equipment, wireless terminals in industrial control, vehicle-mounted terminal equipment, wireless terminals in self-driving (self-driving), wireless terminal equipment in remote medical, and smart grid (smart grid) Wireless terminal equipment, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc.
  • a virtual reality virtual reality
  • AR augmented reality
  • the terminal equipment involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , Remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • the terminal device can also be fixed or mobile.
  • the terminal device may be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to pass items through communication technology. Connect with the network to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the IOT technology can achieve massive connections, deep coverage, and power saving of the terminal through, for example, narrowband NB technology.
  • the terminal equipment may also include sensors such as smart printers, train detectors, gas stations, etc.
  • the main functions include collecting data (part of the 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 in the embodiment of the present application may be a device used to communicate with a mobile device.
  • the network equipment can be an access point (AP) in WLAN, a base transceiver station (BTS) in GSM or CDMA, a base station (nodeB, NB) in WCDMA, or a base station in LTE Evolved base station (evolutional node B, eNB or eNodeB), or relay station or access point, or vehicle-mounted equipment, wearable equipment, and network equipment (gNB) in the NR network or network equipment in the future evolved PLMN network, etc.
  • AP access point
  • BTS base transceiver station
  • nodeB nodeB
  • NB base station
  • LTE Evolved base station evolutional node B, eNB or eNodeB
  • relay station or access point or vehicle-mounted equipment, wearable equipment, and network equipment (gNB) in the NR network or network equipment in the future evolved PLMN network, etc.
  • the network device in the embodiment of the present application may be a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal to the wireless network.
  • RAN nodes are: base station, next-generation base station gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), home base station, baseband unit (BBU) , Or the access point (AP) in the WiFi system, etc.
  • the network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.
  • CU centralized unit
  • DU distributed unit
  • the network device may also have mobile characteristics, for example, the network device may be a mobile device.
  • the network equipment can be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, or a high elliptical orbit (HEO) satellite.
  • the network device may also be a base station installed in a location such as land or water.
  • the network equipment provides services for a cell
  • the terminal equipment communicates with the network equipment through the transmission resources used by the cell.
  • the cell may be a cell corresponding to the network equipment (such as a base station), and the cell may belong to Acer
  • a station may also belong to a base station corresponding to a small cell.
  • the small cell here may include: metro cell, micro cell, pico cell, femto cell Etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the communication system described in the embodiments of the present application is to illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation to the technical solutions provided in the embodiments of the present application.
  • a person of ordinary skill in the art knows that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.
  • SS/PBCH block synchronization signal block
  • one SSB includes: primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS), and physical broadcast channel (physical broadcast channel, PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • Fig. 2 is a schematic diagram of an SSB time-frequency resource provided by an embodiment of the application.
  • one SSB occupies 4 orthogonal frequency division multiplexing (OFDM) symbols in the time domain, and 20 physical resource blocks (physical resource blocks) in the frequency domain. block, PRB), that is, 240 sub-carriers.
  • OFDM orthogonal frequency division multiplexing
  • PRB physical resource blocks
  • PSS and SSS are mainly used to help terminal equipment identify the cell and synchronize with the cell.
  • PBCH includes the most basic system information, such as: system frame number, timing information within the frame, etc.
  • the terminal device successfully receives the SSB of the cell is a prerequisite for it to access the cell.
  • the resource used to transmit one SSB is called a candidate SSB, or called a candidate SSB resource.
  • one SSB time window includes X candidate SSBs.
  • the network device supports sending a maximum of X SSBs in one SSB time window, where X is a positive integer.
  • the above-mentioned SSB time window may appear periodically, so that the network device may periodically send the SSB.
  • the network device may periodically send the SSB with a preset time length as a period, and only send the SSB within the SSB time window within the SSB sending period.
  • the preset time length may be referred to as the SSB transmission period length.
  • the period from the beginning of one cycle to the beginning of the next cycle can be referred to as an SSB transmission cycle.
  • the aforementioned SSB time window refers to the time window used to send the SSB in one SSB transmission period.
  • the length of the SSB time window is less than or equal to the SSB transmission period. In the existing NR system, the length of the SSB time window is 5 ms, or half frame.
  • the SSB time window can be located anywhere in the SSB transmission cycle. Exemplarily, the starting point of the SSB time window may be the starting point of the SSB transmission period. For example, assuming that the SSB transmission period is 40 ms, the SSB time window appears once every 40 ms. Taking the length of the SSB time window of 5 ms as an example, the SSB time window may be 5 ms of 40 ms, for example, the first 5 ms.
  • this embodiment of the present application does not limit the number of candidate SSBs (that is, the value of X) included in the above-mentioned one SSB time window, and the distribution of the X SSBs within the SSB time window.
  • the concept of beam is also proposed, that is, the power of a signal is concentrated in a specific direction for transmission to improve the coverage of the signal.
  • the network device can form multiple beams through beamforming technology, the angles covered by each beam can be the same or different, and beams with different coverage angles can have overlapping parts. Generally, the narrower the beam, the greater the signal gain.
  • the network equipment After adopting the beamforming technology, the network equipment must use multiple beams with different directions to completely cover the cell. For example, a network device uses 8 beams to cover the cell it serves. In downlink transmission, network devices sequentially use beams of different directions to send signals, and this process is called beam sweeping. When the network device sends a signal within the coverage of one or more beams, the terminal device receives the signal sent by the network device within the coverage of the corresponding one or more beams.
  • FIG. 3 is a schematic diagram of transmitting an SSB in a beam scanning manner according to an embodiment of the application. As shown in Figure 3, it is assumed that the network device uses 8 beams to cover the cell it serves. The network device uses each beam to send the SSB in each SSB time window in turn, that is, the network device can send a total of 8 SSBs on the 8 beams. Among them, the black beam in FIG. 3 indicates that the SSB is sent.
  • the SSB sent by the network device can provide two layers of functions.
  • the first layer function of SSB is to indicate timing information. It can be understood that when the length of the SSB time window, the value of X, and the distribution of the X SSBs in the SSB time window are fixed, the time domain positions of the X SSBs in the SSB time window are determined. After receiving a certain SSB, the terminal device can determine the timing information according to the SSB, thereby achieving synchronization with the network device.
  • the second layer function of the SSB is to indicate quasi co-location (QCL) information.
  • the QCL information mainly refers to the large-scale parameter information of the SSB, including one or more of Doppler spread, Doppler shift, average gain, average delay, delay spread, and spatial information.
  • the spatial information refers to the pointing information/direction information of the beam that transmits the SSB.
  • the above-mentioned timing information and QCL information are indicated by the SSB index (SSB index).
  • SSB index Each of the X SSBs in one SSB time window corresponds to a different SSB index.
  • Different SSB indexes correspond to a specific time domain position (that is, timing information) within a SSB time window.
  • Different SSB indexes also correspond to QCL information between different SSBs.
  • the terminal device considers that different SSBs sent with the same SSB index at the same center frequency position are quasi co-located.
  • the NR system can also perform uplink and downlink transmissions on unlicensed frequency bands.
  • An NR system working on an unlicensed frequency band can be called an unlicensed new radio unlicensed (NR-U) system.
  • NR-U new radio unlicensed
  • the network equipment and terminal equipment in the NR-U system use unlicensed frequency bands to listen before sending ( The listen-before-talk (LBT) channel access mechanism, also known as the channel listening mechanism.
  • LBT listen-before-talk
  • the network device or terminal device needs to listen to the channel before sending information, and can only occupy the channel to send information when the channel is free (that is, when the channel is successfully monitored or LBT is successful). If it detects that the channel is busy (that is, the channel detection fails or the LBT fails), the channel cannot be occupied to send information.
  • LBT listen-before-talk
  • the network device in the NR-U system needs to send the SSB in the SSB time window, the network device first listens to the channel before using the first candidate SSB resource to send the SSB.
  • the candidate SSB resource is used to send the SSB on the channel.
  • the NR-U system increases the number of candidate SSB resources (that is, X) in the SSB time window.
  • the NRU system defines the number of candidate SSB resources of the network device in the SSB time window as Y, Y>X.
  • the network device transmits at most X SSBs on the Y candidate SSB resources.
  • Fig. 4 is a schematic diagram of SSB transmission in an NR-U system provided by an embodiment of the application.
  • the number of candidate SSB resources in the SSB time window is 16.
  • the network device needs to send the SSB within the SSB time window, it listens to the channel before using the first candidate SSB resource to send the SSB. If it is determined that the LBT fails through listening, the candidate SSB resource cannot be used to transmit the SSB.
  • the timing information and spatial information corresponding to the SSB it is necessary to separate the timing information and spatial information corresponding to the SSB, because the above-mentioned Y candidate SSBs correspond to Y different timing information.
  • the spatial information corresponding to some SSBs of the Y candidate SSBs may be the same.
  • the NR-U system introduces the SSB candidate index (SSB candidate index) and the SSB index (SSB index) to correspond to the timing information and QCL information of the candidate SSB respectively. That is, the timing information is indicated by the SSB candidate index, and the QCL information is indicated by the SSB index.
  • the SSB candidate index Assuming that among the Y candidate SSBs, if the network device sets the SSB candidate index modulo Q to be QCL between SSBs with the same value, then the spatial information (QCL information) corresponding to the Y candidate SSBs has only Q categories ( For example, a network device uses Q beams to cover the cell it serves).
  • the above-mentioned Q can also be referred to as the QCL factor.
  • the SSB index may be the value obtained by modulating the SSB candidate index and the QCL factor Q, or the SSB index may be the value obtained by taking the third bit of the SSB candidate index and the QCL factor Q.
  • FIG. 5 is a schematic diagram of the SSB index and the SSB candidate index in the NR-U system provided by an embodiment of the application.
  • the timing information corresponding to these 20 candidate SSBs are 0, 1, ..., 19, respectively. Therefore, the SSB candidate indexes corresponding to the 20 candidate SSBs are 0, 1, ..., 19, respectively.
  • the spatial information (QCL information) corresponding to the above 20 candidate SSBs has only Q categories, which are 0, 1, 2, and 3 respectively.
  • a high-frequency or ultra-high frequency communication system refers to a communication system with a frequency higher than a preset frequency. For example, a communication system with a frequency higher than 70 GHz, or a communication system with a frequency higher than 100 GHz, or a communication system with a frequency higher than 300 GHz.
  • the embodiment of the application provides a signal transmission method.
  • the network device can send multiple candidate SSBs in groups, that is, the network device can send a group of SSBs at the same time, and each SSB in this group of SSBs corresponds to the same Timing information and different spatial information.
  • X candidate SSBs are provided in one SSB time window, and the X candidate SSBs correspond to different spatial information respectively.
  • the X candidate SSBs are divided into P groups, each group includes K candidate SSBs, and the K candidate SSBs in a group correspond to the same timing information. In this way, the network device can send a group of SSBs at a time.
  • the network equipment can send out multiple SSBs at the same time, the time to complete a beam scan for the coverage area is effectively reduced, which is beneficial for the terminal equipment to quickly discover/access the cell.
  • the multiple SSBs sent by the network device at the same time correspond to different spatial information, the network device and the terminal device can only transmit and receive data on a specific beam during subsequent access and data transmission, thereby saving resource overhead.
  • FIG. 6 is a schematic flowchart of a signal transmission method provided by an embodiment of this application. As shown in Figure 6, the method of this embodiment includes:
  • the network device determines the target SSB to be sent according to a plurality of predefined candidate SSBs. At least two of the plurality of candidate SSBs have the same timing information, and any two of the plurality of candidate SSBs correspond to The spatial information is different.
  • the network device sends the target SSB.
  • the synchronization signal block SSB refers to a type of signal and/or channel that can provide synchronization information and spatial information.
  • the SSB shown in Figure 2 is used to provide synchronization information and QCL information (spatial information).
  • QCL information spatial information
  • the name of the synchronization signal block (SSB) in the NR system is used, but the related design of the synchronization signal block in the NR system is not limited. As long as it is a signal and/or channel that can provide synchronization information and spatial information, it can be used as the SSB in the embodiment of the present application.
  • multiple candidate SSBs may refer to resources/opportunities/locations that can be used to transmit SSBs within a certain period of time.
  • the specific duration can be any duration, for example: 5ms, 10ms, 15ms, 20ms, 40ms, 80ms, etc.
  • the specific duration may be the duration of one SSB transmission period.
  • the transmission period of the SSB is 40ms, that is, the specific duration can be 40ms.
  • the specific duration may also be the length of an SSB time window.
  • the length of the SSB time window is 5ms, that is, the specific duration can be 5ms.
  • predefined may refer to pre-set by the network device, or pre-appointed by the network device and the terminal device, or may also be agreed upon by a protocol.
  • the network device determines the target SSB according to multiple predefined candidate SSBs.
  • the number of target SSBs is less than or equal to the number of candidate SSBs.
  • the number of candidate SSBs refers to the maximum number of SSBs that can be sent by the network device within the preset time period. For example, if the number of candidate SSBs in the preset time period is X, the network device can send at most X SSBs in the preset time period. Of course, the number of SSBs actually sent by the network device may be less than or equal to X. For example, the network device may send the SSB on each candidate SSB resource, or may only send the SSB on some candidate SSB resources.
  • Each candidate SSB corresponds to timing information and spatial information.
  • the timing information refers to the time domain position corresponding to the candidate SSB
  • the spatial information refers to the direction information/direction information of the beam that transmits the candidate SSB.
  • the spatial information can be embodied by the QCL relationship between candidate SSBs.
  • any two of the multiple candidate SSBs correspond to different spatial information.
  • any two of the multiple candidate SSBs are sent through different beams.
  • any two of the multiple candidate SSBs have different QCL relationships.
  • the timing information corresponding to at least two of the multiple candidate SSBs is the same.
  • candidate SSBs with the same corresponding timing information may be referred to as a group of SSBs.
  • multiple candidate SSBs are divided into P groups, and each group includes at most K candidate SSBs, then the K candidate SSBs in each group have the same timing information, and the K candidate SSBs in each group The corresponding spatial information is different from each other.
  • the network device can send the group of SSBs at the same time. In this way, it is possible to reduce the time for completing a beam scan of the coverage area, which is beneficial for the terminal equipment to quickly discover/access the cell.
  • different SSBs in a group of SSBs sent by network equipment at the same time correspond to different spatial information, network equipment and terminal equipment can only transmit and receive data on specific beams during subsequent access and data transmission, thereby saving resources Overhead.
  • this embodiment does not limit the number of groups into which multiple candidate SSBs are divided and the number of SSBs in each group.
  • the terminal device determines the timing information and space information corresponding to the first SSB according to the received first SSB.
  • the terminal device may receive one or more of the multiple SSBs.
  • the first SSB may be any one of the SSBs received by the terminal device.
  • the terminal device can determine the timing information and space information corresponding to the first SSB according to the received first SSB.
  • each candidate SSB includes a first identifier and a second identifier.
  • the first identifier is used to indicate the spatial information corresponding to the candidate SSB, or in other words, the first identifier is used to indicate the QCL relationship between the candidate SSBs.
  • the second identifier is used to indicate the timing information corresponding to the candidate SSB.
  • each candidate SSB of the X candidate SSBs includes a first identifier and a second identifier.
  • the K candidate SSBs in each group include the same second identifier.
  • the first identifiers included in any two candidate SSBs in different groups are different, and the second identifiers included are also different.
  • the terminal device can determine the first identifier and the second identifier of the SSB, determine the spatial information according to the first identifier, and determine the timing information according to the second identifier.
  • FIG. 7 is a schematic diagram of a possible SSB packet transmission mode provided by an embodiment of the application. As shown in FIG. 7, it is assumed that 32 candidate SSBs are included in one SSB transmission period (or one SSB time window). Each of the 32 candidate SSBs corresponds to different spatial information, that is, the first identifiers included in the 32 candidate SSBs are different from each other.
  • the 32 candidate SSBs are divided into 8 groups, and each group includes 4 candidate SSBs.
  • the 4 candidate SSBs in the same group correspond to the same timing information during transmission, that is, the 4 candidate SSBs in the same group include the same second identifier. For example, see Figure 7:
  • the first identifiers of the 4 candidate SSBs in the first group are 0, 1, 2, 3, and the second identifiers are all 0;
  • the first identifiers of the 4 candidate SSBs in the second group are 4, 5, 6, and 7, respectively, and the second identifiers are all 1;
  • the first identifiers of the 4 candidate SSBs in the third group are 8, 9, 10, and 11 respectively, and the second identifiers are all 2;
  • the first identifiers of the 4 candidate SSBs in the fourth group are 12, 13, 14, 15, and the second identifiers are all 3;
  • the first identifiers of the 4 candidate SSBs in the fifth group are 16, 17, 18, 19, and the second identifiers are all 4;
  • the first identifiers of the 4 candidate SSBs in the sixth group are 20, 21, 22, and 23 respectively, and the second identifiers are all 5;
  • the first identifiers of the 4 candidate SSBs in the seventh group are 24, 25, 26, and 27 respectively, and the second identifiers are all 6;
  • the first identifiers of the four candidate SSBs in the eighth group are 28, 29, 30, and 31, respectively, and the second identifiers are all 7.
  • each candidate SSB in the same group may also be transmitted using non-adjacent beams (or called non-adjacent beams), which will be described below with reference to FIG. 8.
  • FIG. 8 is a schematic diagram of another possible SSB packet transmission mode provided by an embodiment of the application.
  • 24 candidate SSBs are included in one SSB transmission period (or one SSB time window).
  • Each of the 24 candidate SSBs corresponds to different spatial information, that is, the first identifiers included in the 24 candidate SSBs are different from each other.
  • every 4 candidate SSBs can be transmitted as a group.
  • the 4 candidate SSBs in the same group correspond to the same timing information during transmission, that is, the 4 candidate SSBs in the same group include the same second identifier.
  • FIG. 8 is a schematic diagram of another possible SSB packet transmission mode provided by an embodiment of the application.
  • 24 candidate SSBs are included in one SSB transmission period (or one SSB time window).
  • Each of the 24 candidate SSBs corresponds to different spatial information, that is, the first identifiers included in the 24 candidate SSBs are different from each other.
  • the 4 candidate SSBs in the same group can be transmitted using non-adjacent beams (or called non-adjacent beams). Therefore, the first identifiers of the 4 candidate SSBs in the same group are non-contiguous.
  • the first identifiers of the 4 candidate SSBs in the first group are 0, 6, 12, and 18 respectively, and the second identifiers are all 0;
  • the first identifiers of the 4 candidate SSBs in the second group are 1, 7, 13, 19, and the second identifiers are all 1.
  • the first identifiers of the 4 candidate SSBs in the third group are 2, 8, 14, 20, and the second identifiers are all 2;
  • the first identifiers of the 4 candidate SSBs in the fourth group are 3, 9, 15, 21, and the second identifiers are all 3;
  • the first identifiers of the 4 candidate SSBs in the fifth group are 4, 10, 16, 22, and the second identifiers are all 4;
  • the first identifiers of the 4 candidate SSBs in the sixth group are 5, 11, 17, 23, and the second identifiers are all 5.
  • FIG. 7 and FIG. 8 are only two possible examples, and the embodiment of the present application is not limited to the foregoing two SSB transmission modes.
  • the network device determines the target SSB to be transmitted according to a plurality of predefined candidate SSBs.
  • a plurality of predefined candidate SSBs at least two of the plurality of candidate SSBs have the same timing information, and one of the plurality of candidate SSBs Any two corresponding spatial information is different, so that the network device can send multiple SSBs with the same timing information at the same time. In this way, the time to complete a beam scan of the coverage area can be reduced, which is beneficial for the terminal device to quickly discover/access the cell.
  • the network device and the terminal device can only transmit and receive data on a specific beam during subsequent access and data transmission, thereby saving resource overhead.
  • the following describes the indication modes of the first identifier and the second identifier in combination with several possible implementation manners.
  • the first identifier and the second identifier may indicate separately.
  • N 1 bits may be used to indicate the first identifier
  • N 2 bits may be used to indicate the second identifier.
  • the aforementioned N 1 bits and the aforementioned N 2 bits are not multiplexed with each other.
  • the first identifier and the second identifier are separately indicated, which is a simple and direct solution, which can be applied to the scenario of SSB packet transmission in the embodiment of the present application.
  • the first identifier and the second identifier may be jointly indicated.
  • the first identification may be obtained through the second identification, or the second identification may be obtained through the first identification. It can be understood that the joint indication method can save the overhead of indication bits.
  • the first identifier of each candidate SSB is encoded according to the number of candidate SSBs predefined in the preset duration, and then the second identifier is implicitly indicated by the first identifier. That is, the second identifier of each candidate SSB can be determined by the first identifier of the candidate SSB.
  • the preset duration (for example, one SSB transmission period, or one SSB time window) includes X candidate SSBs, and the X candidate SSBs do not have a QCL relationship, or in other words, any two of the X candidate SSBs
  • the corresponding spatial information is different.
  • each candidate SSB includes a first bit field, and the first bit field is used to carry the first identifier.
  • the length of the first bit field is related to X.
  • the value range of the first identifier can be determined according to the value of X.
  • the number of bits included in the first identifier may be determined by X.
  • the first bit field includes N 1 bits, and the N 1 bits are used to indicate the first identifier.
  • N 1 log 2 X.
  • N 1 5 bits are used to indicate the first identifier.
  • the first identifiers of the X candidate SSBs may be 0-31 respectively.
  • N 1 ceil(log 2 X).
  • N 1 5. That is, 5 bits are used to indicate the first identifier.
  • the first identifiers of the X candidate SSBs may be 0-23, respectively.
  • n is a positive integer.
  • the X candidate SSBs may include multiple groups, and the timing information corresponding to each candidate SSB in each group is the same, that is, the SSBs in the same group can be transmitted at the same time.
  • the maximum number of candidate SSBs included in each group is K, that is, each group includes at most K candidate SSBs.
  • Manner 1 The highest N 2 bits of the first identifier are used to indicate the second identifier. Among them, the value of N 2 is related to K.
  • the highest N 2 bits among the N 1 bits of the first identifier may be used to indicate the second identifier.
  • N 2 N 1 -log 2 K.
  • This method is suitable for the case where K is 2 to the k power, where k is a positive integer.
  • the first identifiers of the above eight candidate SSBs may be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 1, 1, 2, 2, 3, and 3, respectively.
  • the second logo floor (the first logo/K)
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 1, 1, 2, 2, 3, and 3, respectively.
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs may be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 0, 1, 1, 1, 2, and 2, respectively.
  • Manner 3 The lowest N 2 bits of the first identifier are used to indicate the second identifier, where the value of N 2 is related to the K.
  • the lowest N 2 bits of the N 1 bits of the first identifier may be used to indicate the second identifier.
  • N 2 log 2 (ceil(X/K)).
  • This method is suitable for the case where P is 2 to the power of k, where k is a positive integer.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 1, 2, 3, 0, 1, 2, and 3 respectively.
  • the first identifiers of the above 10 candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 respectively.
  • the second identifiers of the above 10 candidate SSBs are: 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, respectively.
  • the second mark the first mark mod ceil(X/K)
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifier can be determined according to the first identifier and P (or ceil(X/K)).
  • the second identifiers of the above eight candidate SSBs are: 0, 1, 2, 3, 0, 1, 2, and 3 respectively.
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifier can be determined according to the first identifier and P (or ceil(X/K)).
  • the second identifiers of the above eight candidate SSBs are: 0, 1, 2, 0, 1, 2, 0, 1 respectively.
  • first identifier and K are used to implicitly indicate the second identifier
  • the above four methods are only a few possible examples. In practical applications, other methods can also be used to indicate the second identifier. Here Do not repeat it.
  • first identifier of each candidate SSB in the same group is non-contiguous, that is, corresponds to the SSB transmission scenario shown in FIG. 8.
  • the parameter K is involved.
  • the definition of K is the maximum number of candidate SSBs included in each group, or in other words, the maximum number of SSBs that can be simultaneously transmitted in each group.
  • Each SSB in each group of SSBs that can be transmitted at the same time does not necessarily need to be transmitted. For example, if a group includes 4 candidate SSBs, the network device can transmit these 4 candidate SSBs at the same time, or only two or three of them can be transmitted. This is controlled by network equipment.
  • the method of this embodiment may further include: the network device sends first indication information, where the first indication information is used to indicate the value of K.
  • the terminal device receives the first indication information, thereby determining the value of K. In this way, when a terminal device receives a certain SSB, it can determine the second identifier of the SSB according to the first identifier of the SSB and the value of K.
  • the above-mentioned first indication information may be any of the following:
  • Broadcast messages can be a master information block (MIB) or a system information block (SIB).
  • MIB master information block
  • SIB system information block
  • SIBx may be SIB2, SIB3, SIB4, etc., for example.
  • Radio resource control radio resource control
  • RRC Radio resource control
  • it can be an RRC reconfiguration message, or configuration information for cell information, or configuration information for neighboring cell information, or configuration information for measurement objects, and so on.
  • DCI Downlink control information
  • MAC Media access control
  • CE Media access control
  • Physical downlink control channel (physical downlink control channel, PDCCH) command (order).
  • the value of K can be any of the following:
  • K is a positive integer.
  • the value of K can be 1, 2, 3, 4, 5, 6, 7, 8, etc.
  • K is a positive integer corresponding to the k power of 2, where k is a positive integer.
  • the value of K can be 1, 2, 4, 8, 16, etc.
  • K is a positive integer corresponding to an integer multiple of 2.
  • the value of K can be 2, 4, 6, 8, etc.
  • the first identifier and the second identifier are jointly coded for indication, which is beneficial to save the resource overhead used to indicate the timing information and spatial information of the SSB.
  • the preset duration (for example, one SSB transmission period, or one SSB time window) includes X candidate SSBs, and the X candidate SSBs do not have a QCL relationship, or in other words, any two of the X candidate SSBs
  • the corresponding spatial information is different.
  • each candidate SSB includes a first bit field, and the first bit field is used to carry the first identifier.
  • the length of the first bit field is related to X.
  • the value range of the first identifier can be determined according to the value of X.
  • the number of bits included in the first identifier may be determined by X.
  • the first bit field includes N 1 bits, and the N 1 bits are used to indicate the first identifier.
  • N 1 log 2 X.
  • N 1 5 bits are used to indicate the first identifier.
  • the first identifiers of the X candidate SSBs may be 0-31 respectively.
  • N 1 ceil(log 2 X).
  • N 1 5. That is, 5 bits are used to indicate the first identifier.
  • the first identifiers of the X candidate SSBs may be 0-23, respectively.
  • n is a positive integer.
  • the X candidate SSBs may include multiple groups, and the timing information corresponding to each candidate SSB in each group is the same, that is, the SSBs in the same group can be transmitted at the same time.
  • the maximum number of groups in which X candidate SSBs are grouped is P.
  • the second identifier can be implicitly indicated through the first identifier and P of each candidate SSB.
  • the second identifier can be obtained by performing a preset calculation on the first identifier and P.
  • Manner 1 The highest N 2 bits of the first identifier are used to indicate the second identifier. Among them, the value of N 2 is related to P.
  • the highest N 2 bits among the N 1 bits of the first identifier may be used to indicate the second identifier.
  • X candidate SSBs are divided into P groups, and there are at most K candidate SSBs in each group.
  • the highest N 2 ceil(log 2 P) bits among the N 1 bits of the first identifier may be used to indicate the second identifier.
  • the highest N 2 log 2 P bits among the N 1 bits of the first identifier can be used to indicate the second identifier.
  • the above k and p are both positive integers.
  • N 1 4 bits may be used to indicate the first identifier.
  • the first identifiers of the above 10 candidate SSBs may be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 respectively.
  • N 1 4 bits of the first bit in the identifier to indicate the use of Two identification.
  • the second identifiers of the above 10 candidate SSBs are: 0, 0, 1, 1, 2, 2, 3, 3, 4, and 4 respectively.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 1, 1, 2, 2, 3, and 3, respectively.
  • the second mark floor(the first mark/ceil(X/P))
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifier can be determined according to the first identifier and K (or ceil (X/P)).
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 1, 1, 2, 2, 3, and 3 respectively.
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifier can be determined according to the first identifier and K (or ceil (X/P)).
  • the second identifiers of the above eight candidate SSBs are: 0, 0, 0, 1, 1, 1, 2, and 2, respectively.
  • Manner 3 The lowest N 2 bits of the first identifier are used to indicate the second identifier, where the value of N 2 is related to the P.
  • the lowest N 2 bits of the N 1 bits of the first identifier may be used to indicate the second identifier.
  • N 2 log 2 P.
  • This method is suitable for the case where P is 2 to the power of p, where p is a positive integer.
  • the first identifiers of the above eight candidate SSBs may be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifiers of the above eight candidate SSBs are: 0, 1, 2, 3, 0, 1, 2, and 3 respectively.
  • the first identifiers of the above five candidate SSBs can be 0, 1, 2, 3, and 4, respectively.
  • the second identifiers of the above 5 candidate SSBs are: 0, 1, 0, 1, 0, respectively.
  • the second identification the first identification mod P
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the second identifier can be determined according to the first identifier and P. Referring to Table 14, the second identifiers of the above eight candidate SSBs are: 0, 1, 2, 3, 0, 1, 2, and 3 respectively.
  • N 1 3 bits may be used to indicate the first identifier.
  • the first identifiers of the above eight candidate SSBs can be 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • first identifier and P are used to implicitly indicate the second identifier
  • the above four methods are only a few possible examples. In actual applications, other methods can also be used to indicate the second identifier. Here Do not repeat it.
  • first identifiers of the candidate SSBs in the same group are continuous, that is, corresponding to the SSB transmission scenario shown in FIG. 7.
  • first identifier of each candidate SSB in the same group is non-contiguous, that is, corresponds to the SSB transmission scenario shown in FIG. 8.
  • the parameter P is involved.
  • K ceil(X/P).
  • Each SSB in each group of SSBs that can be transmitted at the same time does not necessarily need to be transmitted. For example, if a group includes 4 candidate SSBs, the network device can transmit these 4 candidate SSBs at the same time, or only two or three of them can be transmitted. This is controlled by network equipment.
  • the method of this embodiment may further include: the network device sends second indication information, where the second indication information is used to indicate the value of the P.
  • the terminal device receives the second indication information, thereby determining the value of P. In this way, when a terminal device receives a certain SSB, it can determine the second identifier of the SSB according to the first identifier of the SSB and the value of P.
  • the above-mentioned second indication information may be any of the following:
  • Broadcast messages can be a master information block (MIB) or a system information block (SIB).
  • the SIB may be SIB1 or SIBx, and the SIBx may be, for example, SIB2, SIB3, or SIB4.
  • Radio resource control radio resource control
  • RRC Radio resource control
  • it can be an RRC reconfiguration message, or configuration information for cell information, or configuration information for neighboring cell information, or configuration information for measurement objects, and so on.
  • DCI Downlink control information
  • MAC Media access control
  • CE Media access control
  • Physical downlink control channel (physical downlink control channel, PDCCH) command (order).
  • the value of P can be any of the following:
  • the value of P is a positive integer.
  • the value of P can be 1, 2, 3, 4, 5, 6, 7, 8, etc.
  • the value of P is a positive integer corresponding to the p-th power of 2, where p is a positive integer.
  • the value of P can be 1, 2, 4, 8, 16, etc.
  • the value of P is a positive integer corresponding to an integer multiple of 2.
  • the value of P can be 2, 4, 6, 8, etc.
  • the first identifier and the second identifier are jointly coded for indication, which is beneficial to save the resource overhead used to indicate the timing information and spatial information of the SSB.
  • FIG. 9 is a schematic structural diagram of a signal transmission device provided by an embodiment of the application.
  • the device in this embodiment may be in the form of software and/or hardware.
  • the device can be installed in the terminal device.
  • the signal transmission device 10 of this embodiment includes: a receiving module 11 and a processing module 12. in,
  • the receiving module 11 is configured to receive a first synchronization signal block SSB, where the first SSB is one of a plurality of predefined candidate SSBs, and at least two of the plurality of candidate SSBs have the same timing information, Any two of the multiple candidate SSBs correspond to different spatial information; the processing module 12 is configured to determine the timing information and spatial information corresponding to the first SSB according to the first SSB.
  • each candidate SSB includes a first identifier and a second identifier, the first identifier is used to indicate the spatial information corresponding to the candidate SSB, and the second identifier is used to indicate the candidate SSB Corresponding timing information; at least two of the plurality of candidate SSBs include the same second identifier, and any two of the plurality of candidate SSBs include different first identifiers.
  • each candidate SSB includes a first bit field, and the first bit field is used to carry the first identifier.
  • the length of the first bit field is related to the number of the multiple candidate SSBs.
  • the number of the multiple candidate SSBs is X
  • the length of the first bit field is N 1
  • N 1 ceil(log 2 X).
  • the second identifier in each candidate SSB has an association relationship with the first identifier.
  • the multiple candidate SSBs include multiple groups, the timing information corresponding to each candidate SSB in each group is the same, the maximum number of candidate SSBs included in each group is K, and the first The second identifier is related to the first identifier and the K.
  • the highest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the K.
  • the result obtained by dividing the first identifier by K and rounding down corresponds to the second identifier.
  • the lowest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the K.
  • the number of the multiple candidate SSBs is X, and the result obtained by modulating ceil(X/K) by the first identifier corresponds to the second identifier.
  • the receiving module 11 is further configured to receive first indication information, where the first indication information is used to indicate the value of K.
  • the first indication information is any one of the following: broadcast message, or radio resource control RRC signaling, or downlink control information DCI, or medium access control MAC control element CE, or physical downlink control channel PDCCH order order.
  • the value of K is a positive integer; or, the value of K is a positive integer corresponding to the k power of 2; or, the value of K is an integer multiple of 2. The corresponding positive integer.
  • the multiple candidate SSBs include multiple groups, the timing information corresponding to each candidate SSB in each group is the same, the maximum number of groups included in the multiple candidate SSBs is P, and the first The second identifier is related to the first identifier and the P.
  • the highest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the P.
  • N 2 ceil(log 2 P).
  • the number of the multiple candidate SSBs is X
  • the result obtained by dividing the first identifier by ceil(X/P) and rounding down corresponds to the second identifier.
  • the lowest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the P.
  • N 2 log 2 P.
  • the result obtained by modulating P by the first identifier corresponds to the second identifier.
  • the receiving module 11 is further configured to receive second indication information, where the second indication information is used to indicate the value of the P.
  • the second indication information is any one of the following: broadcast message, or radio resource control RRC signaling, or downlink control information DCI, or medium access control MAC control element CE, or physical downlink control channel PDCCH order order.
  • the value of P is a positive integer; or, the value of P is a positive integer corresponding to the k power of 2; or, the value of P is an integer multiple of 2. The corresponding positive integer.
  • the signal transmission apparatus of this embodiment can be used to implement the technical solutions on the terminal device side in any of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 10 is a schematic structural diagram of another signal transmission device provided by an embodiment of this application.
  • the device in this embodiment may be in the form of software and/or hardware.
  • the device can be installed in the terminal device.
  • the signal transmission device 20 of this embodiment includes: a processing module 21 and a sending module 22. in,
  • the processing module 21 is configured to determine the target SSB to be transmitted according to a plurality of predefined candidate synchronization signal blocks SSB, at least two of the plurality of candidate SSBs have the same timing information, and the plurality of candidate SSBs Any two of the corresponding spatial information are different; the sending module 22 is configured to send the target SSB.
  • each candidate SSB includes a first identifier and a second identifier, the first identifier is used to indicate the spatial information corresponding to the candidate SSB, and the second identifier is used to indicate the candidate SSB Corresponding timing information; at least two of the plurality of candidate SSBs include the same second identifier, and any two of the plurality of candidate SSBs include different first identifiers.
  • each candidate SSB includes a first bit field, and the first bit field is used to carry the first identifier.
  • the length of the first bit field is related to the number of the multiple candidate SSBs.
  • the number of the multiple candidate SSBs is X
  • the length of the first bit field is N 1
  • N 1 ceil(log 2 X).
  • the second identifier in each candidate SSB has an association relationship with the first identifier.
  • the multiple candidate SSBs include multiple groups, the timing information corresponding to each candidate SSB in each group is the same, the maximum number of candidate SSBs included in each group is K, and the first The second identifier is related to the first identifier and the K.
  • the highest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the K.
  • the result obtained by dividing the first identifier by K and rounding down corresponds to the second identifier.
  • the lowest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the K.
  • the number of the multiple candidate SSBs is X, and the result obtained by modulating ceil(X/K) by the first identifier corresponds to the second identifier.
  • the sending module 22 is further configured to send first indication information, where the first indication information is used to indicate the value of K.
  • the first indication information is any one of the following: broadcast message, or radio resource control RRC signaling, or downlink control information DCI, or medium access control MAC control element CE, or physical downlink control channel PDCCH order order.
  • the value of K is a positive integer; or, the value of K is a positive integer corresponding to the k power of 2; or, the value of K is an integer multiple of 2. The corresponding positive integer.
  • the multiple candidate SSBs include multiple groups, the timing information corresponding to each candidate SSB in each group is the same, the maximum number of groups included in the multiple candidate SSBs is P, and the first The second identifier is related to the first identifier and the P.
  • the highest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the P.
  • N 2 ceil(log 2 P).
  • the number of the multiple candidate SSBs is X
  • the result obtained by dividing the first identifier by ceil(X/P) and rounding down corresponds to the second identifier.
  • the lowest N 2 bits of the first identifier are used to indicate the second identifier, and the N 2 is related to the P.
  • N 2 log 2 P.
  • the result obtained by modulating P by the first identifier corresponds to the second identifier.
  • the sending module 22 is further configured to send second indication information, where the second indication information is used to indicate the value of P.
  • the second indication information is any one of the following: broadcast message, or radio resource control RRC signaling, or downlink control information DCI, or medium access control MAC control element CE, or physical downlink control channel PDCCH order order.
  • the value of P is a positive integer; or, the value of P is a positive integer corresponding to the k power of 2; or, the value of P is an integer multiple of 2. The corresponding positive integer.
  • the signal transmission apparatus of this embodiment can be used to execute the technical solution on the network device side in any of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • the terminal device 30 may include: a transceiver 31, a memory 32, and a processor 33.
  • the transceiver 31 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmitting port, or a transmitting interface
  • the receiver can also be referred to as a receiver, a receiver, a receiving port, or a receiving interface, and other similar descriptions.
  • the transceiver 31, the memory 32, and the processor 33 are connected to each other through a bus 34.
  • the memory 32 is used to store program instructions; the processor 33 is used to execute the program instructions stored in the memory, so as to make the terminal device 30 execute any of the above-mentioned methods.
  • the receiver of the transceiver 31 can be used to perform the receiving function of the terminal device in the above-mentioned communication method.
  • FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • the network device 40 may include: a transceiver 41, a memory 42, and a processor 43.
  • the transceiver 41 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmitting port, or a transmitting interface
  • the receiver can also be referred to as a receiver, a receiver, a receiving port, or a receiving interface, and other similar descriptions.
  • the transceiver 41, the memory 42, and the processor 43 are connected to each other through a bus 44.
  • the memory 42 is used to store program instructions; the processor 43 is used to execute the program instructions stored in the memory, so as to make the network device 40 execute any of the above-mentioned methods.
  • the transmitter of the transceiver 41 can be used to perform the sending function of the network device in the above-mentioned communication method.
  • An embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement any of the above-mentioned signal transmission methods .
  • the embodiments of the present application may also provide a computer program product, which can be executed by a processor, and when the computer program product is executed, it can implement any of the above-mentioned signal transmission methods.
  • All or part of the steps in the foregoing method embodiments may be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps including the above-mentioned method embodiments; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state hard disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.
  • These computer program instructions can be provided to the processing unit of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processing unit of the computer or other programmable data processing equipment can be used to generate It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the term “including” and its variations may refer to non-limiting inclusion; the term “or” and its variations may refer to “and/or”.
  • the terms “first”, “second”, etc. in this application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.
  • “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.

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

Abstract

Certains modes de réalisation de l'invention concernent un procédé et un appareil de transmission de signal, ainsi qu'un dispositif. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit un premier SSB, le premier SSB étant un SSB d'une pluralité de SSB candidats prédéfinis, au moins deux SSB de la pluralité de SSB candidats comprenant les mêmes informations de synchronisation, et deux SSB quelconques de la pluralité de SSB candidats comprenant des informations spatiales différentes ; le dispositif terminal détermine des informations de synchronisation et des informations spatiales correspondant au premier SSB en fonction du premier SSB. Le procédé décrit dans les modes de réalisation de l'invention permet de réduire le temps d'exécution d'un balayage de faisceau sur une zone de couverture, ce qui facilite la découverte/l'accès rapide à une cellule par le dispositif terminal.
PCT/CN2020/083803 2020-04-08 2020-04-08 Procédé et appareil de transmission de signal, et dispositif WO2021203314A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080099416.7A CN115399016A (zh) 2020-04-08 2020-04-08 信号传输方法、装置及设备
PCT/CN2020/083803 WO2021203314A1 (fr) 2020-04-08 2020-04-08 Procédé et appareil de transmission de signal, et dispositif

Applications Claiming Priority (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108632981A (zh) * 2017-03-23 2018-10-09 华为技术有限公司 一种下行同步信号发送方法和接收方法及设备
WO2019056210A1 (fr) * 2017-09-20 2019-03-28 北京小米移动软件有限公司 Procédé et appareil pour indiquer et déterminer un bloc de synchronisation, station de base et équipement utilisateur
CN110691413A (zh) * 2018-07-04 2020-01-14 普天信息技术有限公司 剩余最小系统信息控制资源集合传输方法和设备

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CN108632981A (zh) * 2017-03-23 2018-10-09 华为技术有限公司 一种下行同步信号发送方法和接收方法及设备
WO2019056210A1 (fr) * 2017-09-20 2019-03-28 北京小米移动软件有限公司 Procédé et appareil pour indiquer et déterminer un bloc de synchronisation, station de base et équipement utilisateur
CN110691413A (zh) * 2018-07-04 2020-01-14 普天信息技术有限公司 剩余最小系统信息控制资源集合传输方法和设备

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