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WO2025086092A1 - Procédé et appareil de gestion de faisceaux - Google Patents

Procédé et appareil de gestion de faisceaux Download PDF

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Publication number
WO2025086092A1
WO2025086092A1 PCT/CN2023/126198 CN2023126198W WO2025086092A1 WO 2025086092 A1 WO2025086092 A1 WO 2025086092A1 CN 2023126198 W CN2023126198 W CN 2023126198W WO 2025086092 A1 WO2025086092 A1 WO 2025086092A1
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WO
WIPO (PCT)
Prior art keywords
network device
terminal device
beams
random access
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/126198
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English (en)
Chinese (zh)
Inventor
孔垂丽
李科新
罗禾佳
王俊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2023/126198 priority Critical patent/WO2025086092A1/fr
Publication of WO2025086092A1 publication Critical patent/WO2025086092A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications, and more specifically, to a method and device for managing beams.
  • the core of beam management is to manage the scanning, reporting, and maintenance of static beams, select appropriate static beams for each channel, thereby improving cell coverage and saving system overhead.
  • a beam recovery mechanism can be used in the ground communication system so that the terminal device can quickly obtain another available service beam.
  • the beam failure recovery mechanism of the ground communication system is for the same access network device.
  • the multipath characteristics of the access network device channel in the ground communication system are obvious.
  • the terminal device and the access network device can communicate through both line of sight (LOS) beams and non-line of sight (NLOS) beams.
  • the LOS beam fails (for example, it is blocked), beam recovery can be performed in another NLOS beam.
  • the multipath characteristics are very weak. There is generally only one LOS beam between the satellite access network equipment and the terminal equipment. The satellite access network equipment and the terminal equipment can only communicate through the LOS beam.
  • the beam management mechanism in the existing ground communication system may not be applicable to the NTN system.
  • the present application provides a method and apparatus for managing beams.
  • the terminal device can perform beam recovery through a second network device, thereby ensuring that the link between the terminal device and the first network device will not be terminated.
  • a method for managing beams comprising: when a beam failure occurs between a terminal device and a first network device, the terminal device determines a first beam, which is a beam of a second network device; the terminal device uses the first beam and initiates random access to the first network device through the second network device, or uses the first beam to initiate random access to the second network device, wherein a communication link is established between the first network device and the second network device.
  • the terminal device when a beam failure occurs between a terminal device and a first network device, the terminal device can initiate random access to the first network device through the second network device, that is, perform beam recovery with the help of the second network device, which can ensure that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data exchange.
  • the first network device and the second network device share data, and the terminal device uses the first beam to initiate random access to the second network device, including: the terminal device determines M beams, the M beams are beams of the second network device, M ⁇ 1 and is an integer; the terminal device determines the first beam based on the signal quality of the M beams; the terminal device sends random access request information to the second network device through the first beam, the random access request information includes a first preamble code, and the first preamble code is associated with the first beam; the terminal device receives random access response information sent by the second network device, and the random access response information is generated by the second network device based on the random access request information.
  • the first network device shares data with the second network device, and the second network device can respond to the random access request information sent by the terminal device and send a random access response information to the terminal device, so that the terminal device can directly transmit data with the second network device.
  • the second network device can also send the data uploaded by the terminal device to the first network device.
  • the first network device transmits data to the second network device, and the second network device establishes a data transmission channel with the terminal device, so that the terminal device and the first network device can still maintain data transmission.
  • the terminal device uses the first beam and initiates random access to the first network device through the second network device, including: the terminal device determines M beams, the M beams are beams of the second network device, M ⁇ 1 and is an integer; the terminal device determines the first beam according to the signal quality of the M beams; the terminal device sends random access request information to the second network device through the first beam, so that the second network device forwards the random access request information to the first network device, wherein the random access request information includes a first preamble code, and the first preamble code is associated with the first beam; the terminal device receives random access response information forwarded by the second network device, and the random access response information is generated by the first network device according to the random access request information.
  • the first network device determines that the terminal device performs beam recovery through the second network device
  • the first network device can send the data that needs to be sent to the terminal device to the second network device, and then the second network device forwards it to the terminal device.
  • the terminal device can send the data that needs to be sent to the first network device to the second network device, and then the second network device forwards it to the first network device.
  • the first network device and the terminal device can communicate normally.
  • the first beam is a beam with the best signal quality among the M beams.
  • the terminal device determines M beams, including: the terminal device receives first information sent by the second network device, and the first information is used to indicate the M beams.
  • the terminal device determines M beams, including: before a beam failure occurs between the terminal device and the first network device, the terminal device receives second information sent by the first network device, the second information is used to indicate the M beams, and the second information is determined by negotiation between the first network device and the second network device.
  • the first network device and the second network device are satellite access network devices, and the satellite orbit of the first network device is lower than the satellite orbit of the second network device.
  • a method for managing beams comprising: a first network device receives random access request information sent by a second network device, the random access request information is sent by a terminal device to the second network device using a first beam when it determines that a beam failure occurs with the first network device, wherein the first beam is a beam of the second network device; the first network device generates random access response information based on the random access request information; the first network device sends the random access response information to the second network device, so that the second network device forwards the random access response information to the terminal device.
  • the first beam is determined by the terminal device based on the signal quality of M beams, and the M beams are beams of the second network device.
  • the method also includes: before a beam failure occurs between the first network device and the terminal device, the first network device sends second information to the terminal device, and the second information is used to indicate the M beams, and the second information is determined by negotiation between the first network device and the second network device.
  • the first beam is a beam with the best signal quality among the M beams.
  • the first network device and the second network device are satellite access network devices, and the satellite orbit of the first network device is lower than the satellite orbit of the second network device.
  • a method for managing beams comprising: a second network device receives random access request information sent by a terminal device, the random access request information is sent by the terminal device to the second network device using a first beam when it determines that a beam failure occurs with a first network device, and the first beam is a beam of the second network device; the second network device sends the random access request information to the first network device; the second network device sends random access response information to the terminal device, and the random access response information is generated by the first network device according to the random access request information.
  • the first beam is determined by the terminal device based on the signal quality of M beams, and the M beams are beams of the second network device.
  • the method also includes: the second network device sends first information to the terminal device and the first network device, and the first information is used to indicate the M beams.
  • the first beam is determined by the terminal device based on signal qualities of M beams
  • the M beams are beams of the second network device
  • the M beams are determined by the terminal device based on second information
  • the second information is sent by the first network device to the terminal device
  • the second information is determined by negotiation between the first network device and the second network device.
  • the first beam is the beam with the best signal quality among the M beams.
  • the first network device and the second network device are satellite access network devices, and the satellite orbit of the first network device is lower than the satellite orbit of the second network device.
  • a method for managing beams comprising: a second network device receives random access request information sent by a terminal device, the random access request information is sent by the terminal device to the second network device using a first beam when it determines that a beam failure occurs with a first network device, and the first beam is the beam of the second network device; the second network device sends random access response information to the terminal device according to the random access request, wherein the first network device and the second network device share data.
  • the first beam is determined by the terminal device according to signal qualities of M beams
  • the M beams are beams of the second network device
  • the method further includes: the second network device sends a signal to the terminal device and the first beam; The network device sends first information, where the first information is used to indicate the M beams.
  • the first beam is determined by the terminal device based on signal qualities of M beams
  • the M beams are beams of the second network device
  • the M beams are determined by the terminal device based on second information
  • the second information is sent by the first network device to the terminal device
  • the second information is determined by negotiation between the first network device and the second network device.
  • the first beam is the beam with the best signal quality among the M beams.
  • the first network device and the second network device are satellite access network devices, and the satellite orbit of the first network device is lower than the satellite orbit of the second network device.
  • a communication device which is used to execute the method provided in the first aspect, or the method provided in the second aspect, or the method provided in the third aspect, or the method provided in the fourth aspect.
  • the device may include a unit and/or module for executing the method in the first aspect or any possible implementation of the first aspect, or a unit and/or module such as a processing unit and/or a communication unit for executing the method in the second aspect or any possible implementation of the second aspect, or a unit and/or module such as a processing unit and/or a communication unit for executing the method in the third aspect or any possible implementation of the third aspect, or a unit and/or module such as a processing unit and/or a communication unit for executing the method in the fourth aspect or any possible implementation of the fourth aspect.
  • the apparatus is a terminal device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in a terminal device.
  • the communication unit may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit;
  • the processing unit may be at least one processor, a processing circuit or a logic circuit.
  • the device is a first network device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in the first network device.
  • the communication unit may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit;
  • the processing unit may be at least one processor, a processing circuit or a logic circuit.
  • the device is a second network device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in the second network device.
  • the communication unit may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit;
  • the processing unit may be at least one processor, a processing circuit or a logic circuit.
  • a communication device comprising: at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to call and run the computer program or instructions from the at least one memory, so that the communication device executes the method provided in the first aspect, the method provided in the second aspect, the method provided in the third aspect, or the method provided in the fourth aspect.
  • the apparatus is a terminal device.
  • the apparatus is a chip, a chip system or a circuit used in a terminal device.
  • the apparatus is a first network device.
  • the apparatus is a chip, a chip system, or a circuit used in the first network device.
  • the apparatus is a second network device.
  • a processor for executing the methods provided in the above aspects.
  • a computer-readable storage medium which stores a program code for execution by a device, and the program code includes a method for executing the above-mentioned first aspect, second aspect, third aspect, or fourth aspect and any possible implementation of the first aspect, second aspect, third aspect, or fourth aspect.
  • a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method in the first aspect, the second aspect, the third aspect, or the fourth aspect and any possible implementation manner of the first aspect, the second aspect, the third aspect, or the fourth aspect.
  • a chip which includes a processor and a communication interface.
  • the processor reads instructions stored in a memory through the communication interface to execute the method in the above-mentioned first aspect, second aspect, third aspect, or fourth aspect, and any possible implementation manner of the first aspect, second aspect, third aspect, or fourth aspect.
  • the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions stored in the memory.
  • the processor is used to execute the method in the above-mentioned first aspect or second aspect or third aspect or fourth aspect and any possible implementation method of the first aspect or second aspect or third aspect or fourth aspect.
  • a communication system which includes a terminal device, a first network device and a second network device.
  • FIG1 is a schematic architecture diagram of a communication system provided in an embodiment of the present application.
  • Figure 4 is a schematic diagram of the process of sending SSB by an access network device provided in an embodiment of the present application.
  • FIG5 is a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • FIG8 is a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • FIG9 is a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided in an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication device provided in an embodiment of the present application.
  • any embodiment or design described in the present application as “exemplary” or “for example” should not be interpreted as being more preferred or more advantageous than other embodiments or designs.
  • the use of words such as “exemplary” or “for example” is intended to present related concepts in a concrete manner for ease of understanding.
  • pre-set may include pre-definition, for example, protocol definition.
  • pre-definition can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device, and this application does not limit its specific implementation method.
  • the term "storage” or “saving” as used in this application may refer to saving in one or more memories.
  • the one or more memories may be provided separately or integrated in an encoder or decoder, a processor, or a communication device.
  • the one or more memories may also be partially provided separately and partially integrated in a decoder, a processor, or a communication device.
  • the type of memory may be any form of storage medium, which is not limited thereto.
  • A/B can represent A or B.
  • “And/or” in this application is only a description of the association relationship between the associated objects, indicating that there can be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.
  • the technical solution provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), etc.
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6G) mobile communication system.
  • the technical solution provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type communication (MTC), Internet of Things (IoT) communication system, non-terrestrial network (NTN) communication system or other communication systems.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type communication
  • IoT Internet of Things
  • NTN non-terrestrial network
  • FIG1 shows a schematic architecture diagram of a communication system.
  • the architecture may include terminal equipment, access network (AN) equipment, core network (CN), external network, etc.
  • the external network may be a data network (DN)
  • the access network equipment refers to the radio access network (RAN) equipment provided in this application.
  • Terminal equipment can be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device.
  • the terminal equipment of the present application can also be a handheld device, a vehicle-mounted device, etc. with a wireless connection function.
  • some examples of terminal equipment are: mobile phones, tablet computers, laptops, PDAs, mobile Internet devices (MID), virtual reality (VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, and wireless terminals in smart cities.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
  • wearable devices terminal devices in 5G networks or terminal devices in future evolved public land mobile communication networks (PLMN), etc.
  • PLMN public land mobile communication networks
  • the terminal device may also be a wearable device.
  • Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, 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 clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.
  • the terminal device and the access network device may communicate with each other using a certain air interface technology (such as but not limited to NR or LTE technology, etc.).
  • the terminal devices may also communicate with each other using a certain air interface technology (such as but not limited to NR or LTE technology, etc.).
  • the device for realizing the function of the terminal device can be the terminal device, or it can be a device that can support the terminal device to realize the function, such as a chip system or a chip, which can be installed in the terminal device.
  • the chip system can be composed of a chip, or it can include a chip and other discrete devices.
  • Access network equipment can use different wireless access technologies.
  • 3GPP access technologies e.g., wireless access technologies used in third generation (3rd generation, 3G), fourth generation (4th generation, 4G) or 5G systems
  • non-3GPP access technologies refer to access technologies that comply with 3GPP standards and specifications.
  • access network equipment in 5G systems is called next generation Node Base station (gNB) nodes or RAN equipment.
  • Non-3GPP access technologies can include air interface technologies represented by access points (APs) in wireless fidelity (WiFi), worldwide interoperability for microwave access (WiMAX), code division multiple access (CDMA), etc.
  • APs access points
  • WiFi wireless fidelity
  • WiMAX worldwide interoperability for microwave access
  • CDMA code division multiple access
  • Access network equipment can allow terminal devices and 3GPP core networks to interconnect and communicate using non-3GPP technologies.
  • Access network equipment is responsible for wireless resource management, quality of service (QoS) management, data compression and encryption, etc. on the air interface side. Access network equipment provides access services for terminal devices, and then completes the forwarding of control signals and user data between terminal devices and the core network.
  • QoS quality of service
  • Access network equipment may include, but is not limited to, macro base stations, micro base stations (also called small stations), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved NodeBs, or home Node Bs, HNBs), baseband units (BBUs), APs in WiFi systems, wireless relay nodes, wireless backhaul nodes, transmission points (TPs) or transmission and reception points (TRPs), etc.
  • RNCs radio network controllers
  • NBs node Bs
  • BSCs base station controllers
  • BTSs base transceiver stations
  • home base stations e.g., home evolved NodeBs, or home Node Bs, HNBs
  • BBUs baseband units
  • APs in WiFi systems wireless relay nodes, wireless backhaul nodes, transmission points (TPs) or transmission and reception points (TRPs), etc.
  • It may also be a gNB or transmission point (TRP or TP) in a 5G (e.g., NR) system, one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a distributed unit (DU), or a base station in a next-generation communication 6G system.
  • a 5G e.g., NR
  • a network node constituting a gNB or transmission point such as a distributed unit (DU), or a base station in a next-generation communication 6G system.
  • DU distributed unit
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the AN device.
  • Core network responsible for user access control, mobility management, session management, user security authentication, billing and other services. It consists of multiple functional units, which can be divided into functional entities of the control plane and the data plane.
  • the access and mobility management function (AMF) network element is responsible for user access management and control, user security authentication and mobility management.
  • the user plane function (UPF) network element is responsible for managing the transmission of user plane data, traffic statistics and other functions.
  • the session management function (SMF) network element is mainly responsible for the control plane function of user session management.
  • NTN communication systems include integrated communication and navigation (IcaN) systems, global navigation satellite systems (GNSS) and ultra-dense low-orbit satellite communication systems. Satellite communication systems can be integrated with traditional mobile communication systems.
  • the mobile communication system can be a fourth generation (4G) communication system (e.g., long term evolution (LTE) system), a worldwide interoperability for microwave access (WiMAX) communication system, a fifth generation (5G) communication system, a sixth generation (6G) communication system, and possible future mobile communication systems.
  • 4G fourth generation
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • 6G sixth generation
  • the NTN communication system includes satellite networks, high-altitude platforms, drones and other nodes, with global coverage, long-distance transmission, flexible networking, convenient deployment and no geographical restrictions. It has been widely used in maritime communications, positioning navigation, disaster relief, scientific experiments, video broadcasting and earth observation.
  • Ground communication networks such as 5G communication networks and future 6G communication networks
  • satellite networks are integrated with each other, complementing each other's strengths and weaknesses, and jointly forming a global seamless coverage of sea, land, air, space and ground integrated integrated communication network, which can meet the various business needs of users.
  • the next-generation satellite network generally shows a trend of ultra-dense and heterogeneous: first, the scale of the satellite network has grown from 66 satellites in the Iridium constellation to 720 satellites in the OneNet constellation, and finally extended to the 12,000+ Starlink ultra-dense LEO satellite constellation; secondly, the satellite network presents heterogeneous characteristics, from the traditional single-layer communication network to the multi-layer communication network, the functions of the communication satellite network also tend to be complex and diversified, and gradually compatible with and support functions such as navigation enhancement, earth observation, and multi-dimensional information on-orbit processing.
  • the NTN communication system provides seamless coverage for terminal devices by deploying access network devices or some of the functions of access network devices on non-ground platforms (such as high-altitude platforms or satellites, etc.)
  • the satellite with the access network function deployed is called a satellite access network device or a satellite base station.
  • FIG2 is a schematic diagram of an NTN communication system applicable to an embodiment of the present application.
  • the NTN (satellite) communication system includes satellites 201 and 202. Each satellite can provide services to terminal devices through multiple beams, such as communication services, navigation services, and positioning services.
  • the satellites in this scenario can be low earth orbit (LEO) satellites, medium earth orbit (MEO) satellites, high elliptical orbit (HEO) satellites, geostationary earth orbit (GEO) satellites, etc., and the embodiments of the present application do not specifically limit this.
  • Satellite 102 is connected to a ground station device.
  • the satellite uses multiple beams to cover the service area, and different
  • the beam can communicate through one or more of time division, frequency division and space division. Satellites communicate wirelessly with terminal devices by broadcasting communication signals and navigation signals. Satellites can communicate wirelessly with ground station equipment.
  • Figure 2 takes the 5G network as an example.
  • the terminal equipment on the ground accesses the network through the 5G new air interface.
  • the access network equipment is deployed on the satellite and connected to the core network on the ground through a wireless link.
  • ISL inter-satellite link
  • 5G New Air Interface The wireless link between terminal devices and access network equipment.
  • Ground station responsible for forwarding signaling and business data between satellite base stations and core networks.
  • Xn interface The interface between access network devices, mainly used for signaling interaction such as switching.
  • NG interface The interface between the access network equipment and the core network, which mainly interacts with the signaling of the non-access stratum (NAS) of the core network and the user's business data.
  • NAS non-access stratum
  • the communication system shown in Figure 2 takes the NTN communication system combined with the 5G system as an example.
  • the network elements and interfaces involved may have other names, and the embodiments of the present application do not specifically limit this.
  • the core of beam management is to manage the scanning, reporting, and maintenance of static beams, and select appropriate static beams for each channel to improve cell coverage and save system overhead.
  • the optimal beam measured by the terminal device may not be reported, resulting in traffic drops, dropped calls, and other problems. Therefore, a beam recovery mechanism can be used in the ground communication system so that the terminal device can quickly obtain another available service beam.
  • beam recovery includes the following steps:
  • the access network device can configure a BFR cell for the terminal device based on the capability information reported by the terminal device.
  • the BFR cell includes information such as the beam detection set, the beam recovery candidate set, and the physical random access channel (PRACH) resources.
  • the PRACH information can be the preamble code corresponding to the beam.
  • the terminal device can detect the beams in the beam detection set. If the number of beam failure instances reported by the physical layer is greater than or equal to beamFailureInstanceMaxCount within the beamFailureDetectionTimer time, the terminal device can determine that the beam has failed.
  • the terminal device selects an optimal candidate beam from the beam recovery candidate set, includes the information of the optimal candidate beam in the preamble of random access (RA), and initiates random access, which can also be understood as initiating beam failure recovery.
  • RA random access
  • the access network device After the access network device receives the random access preamble code of beam failure sent by the terminal device, it can reselect a new service beam and send a random access response message, which can also be understood as a beam failure recovery response message, thereby completing the beam recovery.
  • FIG3 is a schematic diagram of the time-frequency structure of SSB.
  • the access network device periodically sends the synchronization signal SSB.
  • the terminal device obtains downlink synchronization with the base station and obtains system messages by receiving the SSB from the access network device.
  • SSB includes primary synchronization signals (PSS), secondary synchronization signals (SSS) and physical broadcast channel (PBCH).
  • PSS primary synchronization signals
  • SSS secondary synchronization signals
  • PBCH physical broadcast channel
  • one SSB occupies a total of 4 orthogonal frequency division multiplexing (OFDM) symbols in the time domain and a total of 240 subcarriers (i.e., 20 resource blocks (RB)) in the frequency domain, of which PSS occupies one symbol, SSS occupies one symbol, and PBCH occupies three symbols, one of which is shared with SSS.
  • OFDM orthogonal frequency division multiplexing
  • FIG4 is a schematic diagram of the process of the access network device sending SSB.
  • the time resources are divided into 1 frame every 10 ms.
  • the access network device sends an SSB burst set every 20 ms.
  • the SSB burst set includes 8 SSBs, which are recorded as ⁇ SSB0, SSB1, ..., SSB7 ⁇ .
  • the SSB set needs to be sent in the first half of each frame, that is, within 5 ms.
  • the access network device sends SSB0 to SSB7 at different times within 5 ms.
  • the access network device uses different beamforming weights to send SSB0 to SSB7, that is, the sending directions of SSB0 to SSB7 are different, forming a comprehensive coverage of the cell.
  • the terminal device detects the signal strength of SSB0 to SSB7 and selects an SSB with the strongest signal for communication.
  • the beam failure recovery mechanism is for the same access network device in the ground communication system.
  • the multipath characteristics of the access network device channel in the ground communication system are obvious.
  • the terminal device and the access network device can communicate through both line of sight (LOS) beam and non line of sight (NLOS) beam. Therefore, in the ground communication system, when the LOS beam fails, When the satellite access network fails (for example, when an obstruction occurs), beam recovery can be performed in another NLOS beam.
  • the multipath characteristic is very weak. Generally, there is only one LOS beam between the satellite access network device and the terminal device. The satellite access network device and the terminal device can only communicate through the LOS beam. When the LOS beam fails, the beam recovery mechanism in the existing ground communication system may not be applicable to the NTN system. Based on this, the embodiment of the present application provides a beam management method that can quickly perform beam recovery.
  • FIG5 shows a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • the terminal device and the network device are used as the execution subjects of the interactive schematic to illustrate the method, but the present application does not limit the execution subjects of the interactive schematic.
  • the terminal device and the network device in FIG5 may also be a chip, a chip system or a processor that supports the implementation of the method, or a logical node, a logical module or software that implements all or part of its functions.
  • the beam recovery method 500 includes:
  • the first network device sends information #1 to the terminal device.
  • the terminal device receives information #1 sent by the first network device.
  • the information #1 may include information of N beams associated with the first network device, where N ⁇ 1 and is an integer, and the first network device is an access network device.
  • the service beam of the terminal device is beam #1, and the N beams include beam #1, that is, the first network device is a source node or source base station of the terminal device.
  • information #1 may include a beam detection set and a beam candidate set, and the beam detection set and the beam candidate set may include one or more beams.
  • the beam detection set includes beam #1 and beam #2
  • the beam candidate set includes beam #3 and beam #4.
  • the first information may also include a preamble code corresponding to the beam, wherein each beam corresponds to a preamble code.
  • the beam detection set includes beam #1 and beam #2
  • the beam candidate set includes beam #3 and beam #4, where beam #1 corresponds to preamble code #1, beam #2 corresponds to preamble code #2, beam #3 corresponds to preamble code #3, and beam #4 corresponds to preamble code #4.
  • S502 The second network device sends information #2 to the terminal device.
  • the terminal device receives information #2 sent by the second network device.
  • the second information may also include a preamble code corresponding to the beam, wherein each beam corresponds to a preamble code.
  • S503 The second network device sends information #2 to the first network device.
  • the first network device receives information #2 sent by the second network device.
  • the manner in which the terminal device detects the failure of N beams may not be limited.
  • the terminal device may perform beam failure detection on the N beams based on a beam failure detection reference signal (BFD RS), which may be an SSB or a channel state information reference signal (CSI-RS).
  • BFD RS beam failure detection reference signal
  • the terminal device periodically detects the BFD RS at the physical layer. If the BFD RS meets the beam failure instance condition, the terminal physical layer sends a beam failure instance indication to the upper layer. If the beam failure instance is greater than or equal to beamFailureInstanceMaxCount, the terminal device upper layer determines that a beam failure has occurred.
  • the value of beamFailureInstanceMaxCount is specified in the protocol.
  • the condition for a beam failure instance can be set as the signal quality of the beam being lower than a set beam failure threshold.
  • the signal quality of the beam can be measured using reference signal receiving power (RSRP), signal to interference plus noise ratio (SINR), etc.
  • RSRP reference signal receiving power
  • SINR signal to interference plus noise ratio
  • the above is only an example of how the terminal device detects the failure of the N beams.
  • the present application can also apply any existing method to determine the beam failure.
  • the terminal device When the terminal device determines that N beams have failed, it can measure M beams.
  • the terminal device can measure reference signals corresponding to the M beams, and the reference signals corresponding to the M beams can be SSB or CSI-RS.
  • the first network device and the second network device can send different SSBs and CSI-RSs in different beams, so that detecting the signal strength of the SSBs and CSI-RSs can determine the signal strength of the beams.
  • the first network device and the second network device can be distinguished by time division and/or frequency division methods.
  • FIG6 shows a schematic diagram of the SSB arrangement of the first network device and the second network device provided in an embodiment of the present application.
  • the first network device and the second network device send an SSB burst set every 5ms, but there is a time difference between the first network device and the second network device sending the SSB burst set, so that the terminal device can determine the SSB from the first network device and the second network device based on the time difference.
  • the terminal device determines beam #5 based on the measurement results of the M beams.
  • the terminal device can determine beam #5 with the best signal quality based on the measurement results.
  • the terminal device sends random access request information to the second network device through beam #5.
  • the second network device receives the random access request information sent by the terminal device in the direction of beam #5, and the random access request information includes the preamble code #1.
  • the terminal device After the terminal device determines beam #5, it can adjust the direction of the beam to the direction of beam #5, that is, pointing to the second network device, and then send preamble code #1, which is associated with beam #5.
  • the preamble #1 may be a dedicated preamble for beam failure recovery, and the terminal device may perform random access using a non-contention random access (CFRA) method.
  • CFRA non-contention random access
  • S507 The second network device sends random access request information to the first network device.
  • the first network device receives the random access request information sent by the second network device.
  • S508 The first network device generates random access response information according to the random access request information.
  • the first network device After receiving the random access request information, the first network device can determine the beam #5 corresponding to the random access request information according to information #2. In other words, the first network device can determine that the terminal device needs to perform beam recovery through the second network device.
  • the first electronic device can generate random access response information according to the random access request information, and the random access response information can also be called Msg2.
  • the random access response information includes a timing advance (TA).
  • S509 The first network device sends random access response information to the second network device.
  • the second network device receives the random access response information sent by the first network device.
  • the second network device sends random access response information to the terminal device.
  • the terminal device receives the random access response information sent by the second network device.
  • the terminal device information waiting window receives the random access response information sent by the second network device, and the random access response information can be carried by a physical downlink shared channel (PDSCH). After receiving the random access response, the terminal device can determine that the random access is successful.
  • PDSCH physical downlink shared channel
  • the first network device and the second network device may be satellite access network devices, wherein the orbit of the first network device may be lower than the orbit of the second network device.
  • the terminal device calculates the relative time difference (RTD) between the first network device and the terminal device when calculating TA.
  • RTD relative time difference
  • the first network device determines that the terminal device performs beam recovery through the second network device, the first network device can send the data that needs to be sent to the terminal device to the second network device, and then the second network device forwards it to the terminal device.
  • the terminal device can send the data that needs to be sent to the first network device to the second network device, and then the second network device forwards it to the first network device.
  • the first network device and the terminal device can communicate normally.
  • the terminal device when a beam failure occurs between a terminal device and a first network device, the terminal device can initiate random access to the first network device through the second network device, that is, perform beam recovery with the help of the second network device, which can ensure that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data exchange.
  • FIG. 7 shows a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • the terminal device and the network device are used as the execution subjects of the interactive schematic to illustrate the method, but the present application does not limit the execution subjects of the interactive schematic.
  • the terminal device and the network device in FIG. 7 may also be a chip, a chip system or a processor that supports the implementation of the method, or a logical node, a logical module or software that implements all or part of its functions.
  • the beam recovery method 700 includes:
  • the first network device and the second network device determine information #1.
  • the first network device may negotiate with the second network device to determine information #1, where the information #1 includes N beams of the first network device, M beams of the second network device, N preambles corresponding to the N beams, and M preambles corresponding to the M beams.
  • the information #1 is used to indicate a mapping relationship between beams, preambles, and network devices.
  • the information #1 when the first network device and the second network device are satellite access network devices, the information #1 also includes ephemeris information of the first network device and the second network device.
  • the ephemeris information of the first network device and the second network device is different, so the first network device and the second network device can be identified by the ephemeris information.
  • Table 1 shows a mapping relationship table of beam-preamble code-network device.
  • the beams sent by the first network device are beam #1 and beam #2, where beam #1 corresponds to preamble code #1, and beam #2 corresponds to preamble code #2.
  • the beams sent by the second network device are beam #3 and beam #4, where beam #3 corresponds to preamble code #3, and beam #4 corresponds to preamble code #4.
  • Table 1 A mapping relationship table of beam-preamble-network equipment
  • the first network device sends information #1 to the terminal device.
  • the terminal device receives information #1 sent by the first network device.
  • the first network device can send information #1 to the first network device when no beam failure occurs with the terminal device.
  • the terminal device can measure the N beams and M beams indicated by information #1, so that when it is determined that a beam failure occurs with the first network device, it can determine beam #3 with the best signal quality from the M beams of the second network device.
  • the terminal device sends random access request information to the second network device through beam #3.
  • the second network device receives the random access request information sent by the terminal device in the direction of beam #3, and the random access request information includes preamble code #1.
  • the preamble #1 may be a dedicated preamble for beam failure recovery, and the terminal device may perform random access using a non-contention random access (CFRA) method.
  • CFRA non-contention random access
  • S705 The second network device sends random access request information to the first network device.
  • the first network device receives the random access request information sent by the second network device.
  • S706 The first network device generates random access response information according to the random access request information.
  • S707 The first network device sends random access response information to the second network device.
  • the second network device receives the random access response information sent by the first network device.
  • S708 The second network device sends random access response information to the terminal device.
  • the terminal device receives the random access response information sent by the second network device.
  • steps S704 to S708 can be found above, and for the sake of brevity, they will not be repeated here.
  • the first network device and the second network device may be satellite access network devices, wherein the orbit of the first network device may be lower than the orbit of the second network device.
  • the terminal device when a beam failure occurs between a terminal device and a first network device, the terminal device can initiate random access to the first network device through the second network device, that is, perform beam recovery with the help of the second network device, which can ensure that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data exchange.
  • the terminal device communicates with the first network device with the help of the beam of the second network device.
  • the first network device can share data with the second network device, and then when the terminal device fails to send a beam with the first network device, it can randomly access the second network device and transmit data with the second network device, which is explained below in conjunction with Figure 8.
  • FIG8 shows a schematic flowchart of a beam management method provided in an embodiment of the present application.
  • the terminal device and the network device are used as the execution subjects of the interactive schematic to illustrate the method, but the present application does not limit the execution subjects of the interactive schematic.
  • the terminal device and the network device in FIG8 may also be a chip, a chip system or a processor that supports the implementation of the method, or a logical node, a logical module or software that implements all or part of its functions.
  • the beam recovery method 800 includes:
  • the first network device and the second network device determine information #1.
  • step S801 reference can be made to the description of S701 above, and for the sake of brevity, it will not be repeated here.
  • S802 The first network device shares data with the second network device.
  • the first network device may send data and configuration information related to the data to the second network device to share the data with the second network device.
  • the first network device may send data, a demodulation reference signal (DMRS), data scrambling information, etc. to the second network device.
  • DMRS demodulation reference signal
  • the second network device After the second network device obtains the above data and the configuration information related to the data, it can perform scrambling or demodulation processing on the data of the first network device.
  • the terminal device can measure the N beams and M beams indicated by information #1, so that when it is determined that a beam failure occurs with the first network device, it can determine beam #3 with the best signal quality from the M beams of the second network device.
  • the terminal device sends random access request information to the second network device through beam #3.
  • the second network device receives the random access request information sent by the terminal device in the direction of beam #3, and the random access request information includes preamble code #1.
  • the preamble #1 may be a dedicated preamble for beam failure recovery, and the terminal device may perform random access using a non-contention random access (CFRA) method.
  • CFRA non-contention random access
  • S805 The second network device generates random access response information according to the random access request information.
  • the second network device can generate random access response information in response to the random access request of the terminal device.
  • S806 The second network device sends random access response information to the terminal device.
  • the terminal device receives the random access response information sent by the second network device.
  • the first network device shares data with the second network device, and the second network device can respond to the random access request information sent by the terminal device and send a random access response information to the terminal device, so that the terminal device can directly transmit data with the second network device.
  • the second network device can also send the data uploaded by the terminal device to the first network device.
  • the first network device transmits data to the second network device, and the second network device establishes a data transmission channel with the terminal device, so that the terminal device and the first network device can still maintain data transmission.
  • the first network device and the second network device may be satellite access network devices, wherein the orbit of the first network device may be lower than the orbit of the second network device.
  • the first network device and the second network device share data.
  • the terminal device can randomly access the second network device through the beam of the second network device and obtain data from the first network device from the second network device.
  • the second network device can also share the data from the terminal device with the first network device, that is, with the help of the second network device to perform beam recovery, it can be ensured that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data transmission.
  • FIG. 9 shows a schematic flow chart of a method for managing beams provided in an embodiment of the present application. As shown in FIG. 9 , the method includes:
  • the terminal device determines a first beam, where the first beam is a beam of a second network device.
  • the terminal device can determine the first beam of the second network device.
  • the terminal device may measure the signal quality of the M beams of the second network device, and determine the first beam according to the signal quality of the M beams, and the first beam may be the beam with the best signal quality among the M beams.
  • the beam information of the M beams may be configured by the second network device and notified to the terminal device, or may be jointly negotiated by the first network device and the second network device and notified to the terminal device by the first network device.
  • the first beam may be preset in the terminal device.
  • the first beam may be agreed upon by protocol.
  • the terminal device initiates random access to the first network device using the first beam and through the second network device, or initiates random access to the second network device using the first beam.
  • the terminal device uses the first beam to send random access request information to the second network device, the second network device then forwards the random access request information to the first network device, the first network device generates random access response information based on the random access request information, the first network device sends the random access response information to the second network device, and the second network device then forwards the random access response information to the terminal device so that the terminal device accesses the first network device through the second network device.
  • the first network device determines that the terminal device performs beam recovery through the second network device, the first network device can send the data to be sent to the terminal device to the second network device, and then the second network device forwards it to the terminal device.
  • the device can send the data that needs to be sent to the first network device to the second network device, and then the second network device forwards it to the first network device.
  • the first network device and the terminal device can communicate normally.
  • the terminal device when a beam failure occurs between a terminal device and a first network device, the terminal device can initiate random access to the first network device through the second network device, that is, perform beam recovery with the help of the second network device, which can ensure that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data exchange.
  • the first network device and the second network device share data
  • the terminal device uses the first beam to send random access request information to the second network device
  • the second network device generates random access response information based on the random access request information
  • the second network device sends random access response information to the terminal device so that the terminal device accesses the second network device.
  • the first network device shares data with the second network device, and the second network device can respond to the random access request information sent by the terminal device and send a random access response information to the terminal device, so that the terminal device can directly transmit data with the second network device.
  • the second network device can also send the data uploaded by the terminal device to the first network device.
  • the first network device transmits data to the second network device, and the second network device establishes a data transmission channel with the terminal device, so that the terminal device and the first network device can still maintain data transmission.
  • the first network device and the second network device share data.
  • the terminal device can randomly access the second network device through the beam of the second network device and obtain data from the first network device from the second network device.
  • the second network device can also share the data from the terminal device with the first network device, that is, with the help of the second network device to perform beam recovery, it can be ensured that the link will not be interrupted, so that the terminal device and the first network device can maintain normal data transmission.
  • the embodiment of the present application can divide the functional modules of the terminal device, the first network device or the second network device according to the above method example.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the modules in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.
  • the device is used to implement the steps or processes corresponding to the terminal device in the above method embodiment.
  • the device is used to implement the steps or processes corresponding to the first network device in the above method embodiment.
  • the device is used to implement the steps or processes corresponding to the second network device in the above method embodiment.
  • FIG10 is a schematic block diagram of a communication device 1000 provided in an embodiment of the present application.
  • the device 1000 may include a communication unit 1010 and a processing unit 1020.
  • the communication unit 1010 may communicate with the outside, and the processing unit 1020 is used for data processing.
  • the communication unit 1010 may also be referred to as a communication interface or a transceiver unit.
  • the device 1000 can implement steps or processes corresponding to those executed by the terminal device in the above method embodiment, wherein the processing unit 1020 is used to execute operations related to processing of the terminal device satellite in the above method embodiment, and the communication unit 1010 is used to execute operations related to sending of the terminal device satellite in the above method embodiment.
  • the device 1000 can implement steps or processes corresponding to those executed by the first network device in the above method embodiment, wherein the communication unit 1010 is used to execute reception-related operations of the first network device in the above method embodiment, and the processing unit 1020 is used to execute processing-related operations of the first network device in the above method embodiment.
  • the device 1000 can implement steps or processes corresponding to those executed by the second network device in the above method embodiment, wherein the communication unit 1010 is used to execute reception-related operations of the second network device in the above method embodiment, and the processing unit 1020 is used to execute processing-related operations of the second network device in the above method embodiment.
  • the apparatus 1000 herein is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit, and/or other components that support the described functions.
  • ASIC application specific integrated circuit
  • processor e.g., a shared processor, a dedicated processor, or a group processor, etc.
  • memory for executing one or more software or firmware programs, a combined logic circuit, and/or other components that support the described functions.
  • the apparatus 1000 can be specifically the terminal device in the above embodiment, and can be used to execute the various processes and/or steps corresponding to the terminal device in the above method embodiment, or the apparatus 1000 can be specifically the first network device in the above embodiment, and can be used to execute the various processes and/or steps corresponding to the first network device in the above method embodiment, or the apparatus 1000 can be specifically the second network device in the above embodiment, and can be used to execute the various processes and/or steps corresponding to the second network device in the above method embodiment. To avoid repetition, it will not be described here.
  • the apparatus 1000 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the terminal device in the above-mentioned method, or the apparatus 1000 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the first network device in the above-mentioned method, or the apparatus 1000 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the second network device in the above-mentioned method.
  • the functions can be implemented by hardware, or by hardware executing corresponding software implementations.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the communication unit can be replaced by a transceiver (for example, the sending unit in the communication unit can be replaced by a transmitter, and the receiving unit in the communication unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, respectively performing the sending and receiving operations and related processing operations in each method embodiment.
  • a transceiver for example, the sending unit in the communication unit can be replaced by a transmitter, and the receiving unit in the communication unit can be replaced by a receiver
  • other units such as the processing unit
  • the communication unit may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in FIG. 10 may be a terminal device, a first network device, or a second network device in the aforementioned embodiment, or may be a chip or a chip system, for example, a system on chip (SoC).
  • the communication unit may be an input and output circuit, a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.
  • the device 1100 includes a processor 1110 and a transceiver 1120.
  • the processor 1110 and the transceiver 1120 communicate with each other through an internal connection path, and the processor 1110 is used to execute instructions to control the transceiver 1120 to send signals and/or receive signals.
  • the device 1100 may further include a memory 1130, and the memory 1130 communicates with the processor 1110 and the transceiver 1120 through an internal connection path.
  • the memory 1130 is used to store instructions, and the processor 1110 can execute the instructions stored in the memory 1130.
  • the device 1100 is used to implement the various processes and steps corresponding to the terminal device in the above method embodiment.
  • the device 1100 is used to implement the various processes and steps corresponding to the first network device in the above method embodiment.
  • the device 1100 is used to implement the various processes and steps corresponding to the second network device in the above method embodiment.
  • the device 1100 may be specifically a terminal device, a first network device or a second network device in the above embodiment, or a chip or a chip system.
  • the transceiver 1120 may be a transceiver circuit of the chip, which is not limited here.
  • the device 1100 may be used to execute the various steps and/or processes corresponding to the terminal device, the first network device or the second network device in the above method embodiment.
  • the memory 1130 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory.
  • the memory may also store information about the device type.
  • the processor 1110 may be used to execute instructions stored in the memory, and when the processor 1110 executes instructions stored in the memory, the processor 1110 is used to execute the various steps and/or processes of the above method embodiments corresponding to the terminal device, the first network device or the second network device.
  • each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution.
  • the software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
  • the storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.
  • the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities.
  • each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software.
  • the above processor can be a general-purpose processor, digital signal processing (DSP), ASIC, field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • FPGA field-programmable gate array
  • the processor in the embodiment of the present application can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present application.
  • the general-purpose processor can be a microprocessor or the processor can also be any conventional processor.
  • the steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform.
  • the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include a volatile memory and a non-volatile memory. Both volatile memory.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically erasable programmable read-only memory (EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • DR RAM direct rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.
  • the present application also provides a computer-readable storage medium, which stores computer instructions.
  • the computer instructions When the computer instructions are executed on a computer, the operations and/or processes performed by the terminal device, the first network device or the second network device in each method embodiment of the present application are executed.
  • the present application also provides a computer program product, which includes computer program code or instructions.
  • a computer program product which includes computer program code or instructions.
  • the operations and/or processes performed by the terminal device, the first network device or the second network device in the various method embodiments of the present application are executed.
  • the present application also provides a chip, the chip including a processor.
  • a memory for storing a computer program is provided independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the operation and/or processing performed by the terminal device, the first network device or the second network device in any one of the method embodiments is executed.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit, etc.
  • the chip may further include a memory.
  • the present application also provides a communication system, including a terminal device, a first network device and a second network device in an embodiment of the present application.
  • memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be 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 distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional 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 can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

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

Abstract

La présente demande concerne un procédé et un appareil de gestion de faisceaux. Le procédé comprend les étapes suivantes : lorsqu'un défaut de faisceau se produit entre un équipement terminal et un premier dispositif de réseau, l'équipement terminal détermine un premier faisceau, le premier faisceau étant un faisceau d'un second dispositif de réseau ; et l'équipement terminal initie un accès aléatoire au premier dispositif de réseau au moyen du second dispositif de réseau à l'aide du premier faisceau, ou initie un accès aléatoire au second dispositif de réseau à l'aide du premier faisceau, une liaison de communication étant établie entre le premier dispositif de réseau et le second dispositif de réseau. Dans les modes de réalisation de la présente demande, lorsqu'un défaut de faisceau se produit entre l'équipement terminal et le premier dispositif de réseau, l'équipement terminal peut effectuer une récupération de faisceau au moyen du second dispositif de réseau, de façon à garantir que la liaison n'est pas interrompue, ce qui permet à l'équipement terminal de maintenir un échange de données normal avec le premier dispositif de réseau.
PCT/CN2023/126198 2023-10-24 2023-10-24 Procédé et appareil de gestion de faisceaux Pending WO2025086092A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972171A (zh) * 2018-09-28 2020-04-07 维沃移动通信有限公司 波束失败恢复请求传输方法、终端设备及网络设备
CN111278122A (zh) * 2019-01-25 2020-06-12 维沃移动通信有限公司 波束失败恢复方法、处理方法、终端及网络侧设备
US20210195444A1 (en) * 2017-09-28 2021-06-24 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, second node, and methods performed thereby for handling a failure in a secondary cell serving the wireless device
CN114501626A (zh) * 2020-10-23 2022-05-13 大唐移动通信设备有限公司 消息处理方法、装置、终端设备、网络设备及存储介质
CN114900839A (zh) * 2018-09-28 2022-08-12 华为技术有限公司 传输信息的方法和装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210195444A1 (en) * 2017-09-28 2021-06-24 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, second node, and methods performed thereby for handling a failure in a secondary cell serving the wireless device
CN110972171A (zh) * 2018-09-28 2020-04-07 维沃移动通信有限公司 波束失败恢复请求传输方法、终端设备及网络设备
CN114900839A (zh) * 2018-09-28 2022-08-12 华为技术有限公司 传输信息的方法和装置
CN111278122A (zh) * 2019-01-25 2020-06-12 维沃移动通信有限公司 波束失败恢复方法、处理方法、终端及网络侧设备
CN114501626A (zh) * 2020-10-23 2022-05-13 大唐移动通信设备有限公司 消息处理方法、装置、终端设备、网络设备及存储介质

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