WO2025103271A1 - 波束间批量切换方法、装置、设备及存储介质 - Google Patents

波束间批量切换方法、装置、设备及存储介质 Download PDF

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Publication number
WO2025103271A1
WO2025103271A1 PCT/CN2024/131332 CN2024131332W WO2025103271A1 WO 2025103271 A1 WO2025103271 A1 WO 2025103271A1 CN 2024131332 W CN2024131332 W CN 2024131332W WO 2025103271 A1 WO2025103271 A1 WO 2025103271A1
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Prior art keywords
target
source
network device
center
switching
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English (en)
French (fr)
Inventor
郭帅民
孙向涛
李晓燕
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Publication of WO2025103271A1 publication Critical patent/WO2025103271A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device, equipment and storage medium for batch switching between beams.
  • the source network device (such as a source satellite or a source base station) needs to select a target network device (such as a target satellite or a target base station) for each terminal device and send a switching request message to the target network device, which includes the location information of the terminal device.
  • the target network device needs to determine whether the location corresponding to the location information already has beam coverage based on the location information of the terminal device. If it does, the terminal device is switched to the beam. If not, a new beam is created with the location of the terminal device as the center.
  • the target network device needs to create multiple new beams, resulting in a waste of beam resources.
  • the present disclosure provides a method, device, equipment and storage medium for batch switching between beams to save beam resources.
  • an embodiment of the present disclosure provides a method for batch switching between beams, which is applied to a source network device, including:
  • a switching request message is sent to the target network device, the switching request message including the location information of the center point of the source beam; the target network device is used to determine the target beam according to the location information of the center point of the source beam, and the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold;
  • the terminal device is migrated to the coverage of the target beam.
  • the method further includes:
  • the target network device is determined according to the location information of the center point of the source beam
  • a target network device corresponding to the first terminal device is determined as the target network device.
  • the center of the target beam is equal to the center of the source beam.
  • the target beam is a beam already existing in the target network device or a beam newly created by the target network device.
  • the target beam is the target beam after the migration of the first terminal device.
  • an embodiment of the present disclosure provides a method for batch switching between beams, which is applied to a target network device, including:
  • the switching request message including source beam center point location information
  • a switching response message is sent to the source network device, where the switching response message includes information of the target beam, and the source network device is used to migrate the terminal devices within the coverage of the source beam to the coverage of the target beam according to the switching response message.
  • the center of the target beam is equal to the center of the source beam.
  • determining the target beam according to the position information of the center point of the source beam includes:
  • the first beam is determined as the target beam.
  • the method further includes:
  • the first beam does not exist in the target network device, create a second beam, where the distance between the center of the second beam and the center of the source beam is less than or equal to a preset threshold;
  • the second beam is determined as the target beam.
  • determining the target beam according to the position information of the center point of the source beam includes:
  • the target beam is determined to be the target beam determined when the handover request message is received for the first time.
  • an embodiment of the present disclosure provides a device for batch switching between beams, including:
  • a sending module is used to send a switching request message to a target network device for each terminal device when multiple terminal devices within the coverage of a source beam migrate, and the switching request message includes source beam center point location information; the target network device is used to determine a target beam based on the source beam center point location information, and the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold;.
  • a receiving module used to receive a switching response message fed back by the target network device, where the switching response message includes information of the target beam;
  • a migration module is used to migrate the terminal device to the coverage of the target beam according to the switching response message.
  • an embodiment of the present disclosure provides a device for batch switching between beams, including:
  • a receiving module used for receiving a switching request message sent by a source network device, wherein the switching request message includes source beam center point location information;
  • a determination module used to determine a target beam according to the position information of the center point of the source beam, wherein the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold;
  • the sending module is used to send a switching response message to the source network device, and the switching response message includes information of the target beam.
  • the source network device is used to migrate the terminal devices within the coverage of the source beam to the coverage of the target beam according to the switching response message.
  • an embodiment of the present disclosure provides a source network device, including a memory, a transceiver, and a processor:
  • a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • a switching request message is sent to the target network device, the switching request message including the location information of the center point of the source beam; the target network device is used to determine the target beam according to the location information of the center point of the source beam, and the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold;
  • the terminal device is migrated to the coverage of the target beam.
  • the processor is also used to:
  • a target network device corresponding to the first terminal device is determined as the target network device.
  • the center of the target beam is equal to the center of the source beam.
  • the target beam is a beam already existing in the target network device or a beam newly created by the target network device.
  • the target beam is the target beam after the migration of the first terminal device.
  • an embodiment of the present disclosure provides a target network device, including a memory, a transceiver, and a processor:
  • a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • the switching request message including source beam center point location information
  • a switching response message is sent to the source network device, where the switching response message includes information of the target beam, and the source network device is used to migrate the terminal devices within the coverage of the source beam to the coverage of the target beam according to the switching response message.
  • the center of the target beam is equal to the center of the source beam.
  • the processor determines the target beam according to the position information of the center point of the source beam, it is specifically used to:
  • the first beam is determined as the target beam.
  • a second beam is created, and a distance between a center of the second beam and a center of the source beam is less than or equal to a preset threshold; and the second beam is determined as the target beam.
  • the processor determines the target beam according to the position information of the center point of the source beam, it is specifically used to:
  • the target beam is determined to be the target beam determined when the handover request message is received for the first time.
  • an embodiment of the present disclosure provides a processor-readable storage medium, which stores a program for causing the processor to execute the method of the first aspect.
  • an embodiment of the present disclosure provides a processor-readable storage medium, which stores a program for causing the processor to execute the method as in the second aspect.
  • the method, apparatus, device and storage medium for batch switching between beams send a switching request message carrying the location information of the center point of the source beam to the target network device for each terminal device within the coverage range of the source beam, so that the target network device determines the target beam according to the location information of the center point of the source beam. Since the switching request message received by the target network device each time carries the same location information of the center point of the source beam, and the target network device determines the target beam according to the location information of the center point of the source beam each time, The determined target beam is relatively fixed, so the target beam determined by the target network device for different terminal devices within the coverage range of the source beam is the same.
  • the center of the same target beam determined by the target network device for each terminal device is as close as possible to the center of the source beam, so that the coverage range of the target beam overlaps with the coverage range of the source beam as much as possible, so that the target beam covers all terminal devices within the coverage range of the source beam as much as possible. Therefore, the same target beam determined by the target network device for each terminal device is sufficient to accommodate all terminal devices within the coverage range of the source beam, and the target network device does not need to create different target beams for different terminal devices, thereby saving beam resources.
  • FIG1 is an overall flow chart of batch switching between beams in the prior art
  • FIG2 is an example diagram of batch switching plane positions in the prior art
  • FIG3 is a schematic diagram of the architecture of a satellite communication system for a batch switching method between beams provided in an embodiment of the present disclosure
  • FIG4 is a flow chart of a batch switching method between beams provided in an embodiment of the present disclosure.
  • FIG5 is a flow chart of a method for batch switching between beams provided by another embodiment of the present disclosure.
  • FIG6 is a flow chart of a method for batch switching between beams provided by another embodiment of the present disclosure.
  • FIG7 is an overall flow chart of batch switching between beams provided in an embodiment of the present disclosure.
  • FIG8 is a diagram showing an example of batch switching plane positions provided by this embodiment.
  • FIG9 is a schematic diagram of a grid and a beam provided in an embodiment of the present disclosure.
  • FIG10 is a flow chart of a method for batch switching between beams provided in an embodiment of the present disclosure.
  • FIG11 is a flow chart of a method for batch switching between beams provided in an embodiment of the present disclosure.
  • FIG12 is a flow chart of a method for batch switching between beams provided in an embodiment of the present disclosure.
  • FIG13 is a flow chart of a method for batch switching between beams provided in an embodiment of the present disclosure.
  • FIG14 is a schematic diagram of the structure of a device for batch switching between beams provided in an embodiment of the present disclosure
  • FIG15 is a schematic diagram of the structure of a device for batch switching between beams provided in an embodiment of the present disclosure
  • FIG16 is a schematic diagram of the structure of a source network device provided in an embodiment of the present disclosure.
  • FIG. 17 is a schematic diagram of the structure of a target network device provided in an embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B may represent three situations: A exists alone, 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.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • the source network device (such as a source satellite or a source base station) needs to select a target network device (such as a target satellite or a target base station) for each terminal device, and send a switching request message to the target network device.
  • the switching request message includes the location information of the terminal device (such as longitude, latitude, and altitude).
  • the target network device receives each switching request message, it needs to determine whether the location corresponding to the location information already has beam coverage based on the location information of the terminal device, such as calculating whether the distance from the terminal device to the center of all existing beams is less than the beam service radius R (it is considered to be covered only if it is less than). If it already exists, the terminal device is cut into the beam. If it does not exist, a new beam is created with the location of the terminal device as the center.
  • FIG1 shows the overall flow chart of batch switching between beams in the prior art. Assume that there are two terminal devices (User Equipment, UE) that need to be switched, and the distance between the two UEs is greater than the beam service radius R. As shown in FIG1, the overall process includes the following steps:
  • Step 1 Batch switching between beams is triggered due to scenarios such as satellite movement and interference avoidance.
  • inter-beam (inter-cell) batch user switching is triggered, that is, all UEs in beam 1 (Beam1) need to be migrated.
  • UE1 and UE2 shown in Figure 1 are both UEs in beam 1.
  • Step 2 Source satellite 1 selects a target satellite according to the position of UE1.
  • source satellite 1 first performs the switching of UE1, and steps 2 to 7 shown in FIG1 are the switching process of UE1.
  • source satellite 1 selects a target satellite according to the location information of UE1.
  • Source satellite 1 can select one of the multiple other satellites as the target satellite according to the location information of UE1 and the location information of other satellites, for example, the distance between the target satellite and UE1 is the shortest.
  • the coverage of source satellite 1 includes multiple cells, UE1 is located in one of the cells, and there are multiple neighboring cells around the cell; source satellite 1 can select one of the multiple neighboring cells as the target cell according to the location information of UE1 and the central location information of each neighboring cell, for example, the neighboring cell with the closest distance to UE1 is selected as the target cell.
  • the target cell may be within the coverage of source satellite 1 or within the coverage of other satellites, that is, UE1 can switch between different cells within the coverage of the same satellite or between different satellites.
  • the satellite corresponding to the target cell is used as the target satellite.
  • the source satellite 1 selecting the target satellite according to the location information of the UE 1 are provided here for schematic illustration only and are not specifically limited.
  • the present invention is not limited to these feasible implementations as long as a suitable target satellite or target cell can be selected. Assume that the target satellite selected in step 2 is the target satellite 2 shown in FIG. 1 .
  • Step 3 The source satellite 1 sends a handover request message to the public processing module of the target satellite 2.
  • the handover request message carries the location information of UE1.
  • Step 4 The public processing module of the target satellite 2 determines whether there is a beam according to the position of UE1. If not, a new beam is created, such as Beam2.
  • the target satellite 2 determines whether there is a beam that can cover UE1 according to the location information of UE1, that is, determines whether there is an existing beam that can cover UE1.
  • target satellite 2 needs to create a new beam with the position of UE1 as the center point, for example, Beam2.
  • Step 5 The target satellite 2 sends a switching response message to the source satellite 1.
  • the switching response message carries Beam2 information.
  • Step 6 Source satellite 1 sends a handover reconfiguration message to UE1, where the handover reconfiguration message carries Beam2 information.
  • Step 7 UE1 sends a handover completion message to the target satellite 2.
  • UE1 searches for Beam2 beam according to Beam2 information and accesses target beam Beam2, and sends a switching completion message to target satellite 2.
  • Step 8 Source satellite 1 selects a target satellite according to the position of UE2.
  • Steps 8 to 13 shown in FIG1 are the switching process of UE2.
  • the source satellite 1 selects a target satellite according to the position of UE2.
  • the specific implementation process of step 8 is similar to the implementation process of step 2, and will not be repeated here.
  • the target satellite selected by the source satellite 1 for UE1 and the target satellite selected by the source satellite 1 for UE2 may be the same target satellite or different target satellites. Because the source satellite 1 selects the target satellite based on the position of the UE. The position of UE1 is different from the position of UE2.
  • the target satellite selected by the source satellite 1 for UE1 and the target satellite selected by the source satellite 1 for UE2 may be different.
  • the target satellite selected by the source satellite 1 for UE1 and the target satellite selected by the source satellite 1 for UE2 may be the same. Therefore, the target satellite selected by the source satellite 1 for UE1 and the target satellite selected by the source satellite 1 for UE2 may be the same or may be different.
  • Step 9 The source satellite 1 sends a switching request message to the public processing module of the target satellite 2.
  • the switching request message carries the location information of UE2.
  • Step 10 The public processing module of the target satellite 2 determines whether there is a beam according to the position of UE2. If not, a new beam is created, such as Beam3.
  • the target satellite 2 determines whether there is a beam that can cover UE2 according to the location information of UE2, that is, determines whether there is an existing beam that can cover UE2.
  • target satellite 2 needs to create a new beam with the position of UE2 as the center point, for example, Beam3. It can be understood that since the distance between UE1 and UE2 is greater than the beam service radius R, Beam2 created with the position of UE1 as the center point cannot cover UE2. Therefore, a beam different from Beam2 needs to be created for UE2, for example, Beam3.
  • Step 11 The target satellite 2 sends a switching response message to the source satellite 1.
  • the switching response message carries Beam3 information.
  • Step 12 Source satellite 1 sends a handover reconfiguration message to UE2, where the handover reconfiguration message carries Beam3 information.
  • Step 13 UE2 sends a handover completion message to the target satellite 2.
  • UE2 searches for Beam3 beam according to Beam3 information and accesses target beam Beam3, and sends a switching completion message to target satellite 2.
  • FIG2 shows an example diagram of the plane position of batch switching in the prior art.
  • satellite 1 is recorded as the source satellite
  • satellite 2 is recorded as the target satellite.
  • the coverage area of satellite 1 is also called the coverage range of satellite 1
  • the coverage area of satellite 2 is also called the coverage range of satellite 2.
  • the beam service radius i.e., the beam radius
  • R The distance between UE1 and UE2 is greater than the beam service radius R.
  • UE1 and UE2 are located in Beam1 of satellite 1.
  • the target satellite creates Beam2 for UE1, and the center of Beam2 is the location of UE1, and then UE1 accesses Beam2.
  • the target satellite creates Beam3 for UE2, and the center of Beam3 is the location of UE2, and then UE2 accesses Beam3, thereby completing the migration of all UEs in Beam1.
  • the target network device such as the target satellite, needs to create multiple new beams (because during the switching process of each UE, the beam created for the UE may not cover other UEs), resulting in a waste of beam resources.
  • embodiments of the present application provide a method and device for batch switching between beams to save beam resources.
  • the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
  • the applicable system may be a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system and its evolved communication system, etc.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • LTE-A advanced long term evolution
  • UMTS universal mobile telecommunication system
  • WiMAX world-wide interoperability for microwave access
  • NR 5G new radio
  • NR new radio
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem.
  • the name of the terminal device may also be different.
  • the terminal device may be called a user equipment (UE).
  • the wireless terminal device may be a USB storage device, other personal computer memory devices, and a dongle, or it may be connected to a wireless access network (RAN).
  • RAN wireless access network
  • the wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with the wireless access network.
  • a mobile terminal device such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with the wireless access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDAs Personal Digital Assistants
  • personal computers tablet computers
  • MTC Machine-type Communication
  • the wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, a user device, and a wireless access point and a router/modem that meet the limitations of this definition, etc., but is not limited in the embodiments of the present application.
  • the network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services to the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device may be used to interchange the received air frames with Internet Protocol (IP) packets, as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network device may also coordinate the attribute management of the air interface.
  • the network device involved in the embodiment of the present application may be an evolutionary network device (evolutional Node B, eNB or e-NodeB) in a long-term evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), etc., or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), a network test device, etc., which is not limited in the embodiment of the present application.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated.
  • the technical solution provided by the embodiment of the present application is not limited to being applicable to the various systems shown above, but can also be applicable to 5G, 5G extension, 6G non-terrestrial networks (NTN), such as satellite networking, satellite-ground fusion networking and other satellite communication systems, inter-station or inter-satellite switching, intra-station or intra-satellite switching and other scenarios.
  • NTN non-terrestrial networks
  • the inter-beam batch switching method provided by the embodiment of the present application includes the source side (i.e., source network equipment, such as source satellite, source base station, etc.) for batch switching processing, the location information carried by the switching request message, the target side (i.e., target network equipment such as target satellite, target base station, etc.) for batch switching processing, etc. It is introduced below in conjunction with specific embodiments.
  • FIG3 is a schematic diagram of the architecture of a satellite communication system applicable to the inter-beam batch switching method provided in an embodiment of the present application, and the satellite communication system may include a satellite 31, a satellite 32, a terminal device 33 communicating with the satellite 31, and a terminal device 34 communicating with the satellite 31.
  • FIG3 only shows two satellites and two terminal devices, FIG3 is only for schematic illustration and does not constitute a limitation on the applicable scenarios of the inter-beam batch switching method in an embodiment of the present application.
  • the satellite communication system shown in FIG3 is only for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application.
  • the satellite communication system may also include other devices, such as core network devices, network control devices, etc. (not shown in FIG3).
  • FIG4 is a flow chart of a method for batch switching between beams provided by an embodiment of the present disclosure.
  • the method may be executed by a source network device such as a source satellite or a source base station.
  • a source network device such as a source satellite or a source base station.
  • the specific steps of the method are as follows:
  • a switching request message is sent to a target network device for each terminal device, and the switching request message includes the location information of the center point of the source beam; the target network device is used to determine a target beam based on the location information of the center point of the source beam, and the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold.
  • satellite 31 shown in FIG3 is a source satellite
  • satellite 32 is a target satellite
  • Terminal devices 33 and 34 are both within the coverage of the source beam of satellite 31.
  • satellite 31 can send a switching request message to the target satellite, that is, satellite 32, for each terminal device within the coverage of the source beam, and the switching request message includes the source beam center point location information.
  • satellite 31 first performs the switching of terminal device 33, and needs to send a switching request message to satellite 32, and the switching request message includes the source beam center point location information. After satellite 31 completes the switching of terminal device 33, it performs the switching of terminal device 34, and also needs to send a switching request message to satellite 32, and the switching request message includes the source beam center point location information. In other words, satellite 31 needs to send a switching request message to satellite 32 once for each terminal device within the coverage of the source beam, and each switching request message sent carries the source beam center point location information, instead of carrying the location information of each terminal device.
  • the target beam can be determined according to the source beam center point position information carried by the switching request message.
  • the target beam can be an existing beam of the satellite 32, or can be a newly created beam of the satellite 32.
  • the distance between the center of the target beam and the center of the source beam is less than or equal to the preset threshold. It can be understood that the present embodiment does not limit the specific value of the preset threshold.
  • the preset threshold is used here to control the distance between the center of the target beam and the center of the source beam to be as small as possible, so that the overlap between the coverage range of the target beam and the coverage range of the source beam is as large as possible, so that the target beam covers all terminal devices within the coverage range of the source beam as much as possible, and ensures that all terminal devices within the coverage range of the source beam can be smoothly migrated to the target beam.
  • the center of the target beam is equal to the center of the source beam, that is, the coverage range of the target beam and the coverage range of the source beam are exactly overlapped and equal.
  • the distance range is related to a preset threshold.
  • the specific value of the preset threshold can be determined based on the distance range.
  • the target beam determined by satellite 32 for different terminal devices within the coverage range of the source beam is the same.
  • the satellite 32 can send a switching response message to the satellite 31, and the switching response message includes the information of the target beam.
  • the satellite 31 can receive the switching response message fed back by the satellite 32.
  • the satellite 32 determines the target beam, it can send a switching response message to the satellite 31, and the switching response message includes the information of the target beam.
  • the satellite 31 can receive the switching response message fed back by the satellite 32.
  • a switching reconfiguration message can be sent to the terminal device 33 according to the switching response message.
  • the switching reconfiguration message carries the information of the target beam.
  • the terminal device 33 can search for the target beam and access the target beam according to the information of the target beam, and then send a switching completion message to the satellite 32, thereby completing the process of the terminal device 33 switching from the source beam of the satellite 31 to the target beam of the satellite 32.
  • the terminal device 34 after the satellite 31 receives the switching response message fed back by the satellite 32, it can send a switching reconfiguration message to the terminal device 34 according to the switching response message.
  • the switching reconfiguration message carries the information of the target beam.
  • the terminal device 34 can search for the target beam and access the target beam according to the information of the target beam, and then send a switching completion message to the satellite 32, thereby completing the process of the terminal device 34 switching from the source beam of the satellite 31 to the target beam of the satellite 32.
  • the source network device sends a switching request message carrying the source beam center point location information to the target network device for each terminal device within the coverage range of the source beam, so that the target network device determines the target beam according to the source beam center point location information. Since the switching request message received by the target network device each time carries the same source beam center point location information, the target beam determined by the target network device each time according to the same source beam center point location information is relatively fixed, so that the target beam determined by the target network device for different terminal devices within the coverage range of the source beam is the same.
  • the coverage range of the target beam overlaps with the coverage range of the source beam as much as possible, so that the target beam covers all terminal devices within the coverage range of the source beam as much as possible. Therefore, the same target beam determined by the target network device for each terminal device is sufficient to accommodate all terminal devices within the coverage range of the source beam, and the target network device does not need to create different target beams for different terminal devices, thereby saving beam resources.
  • the method for each terminal device within the coverage of the source beam, before sending a switching request message to the target network device, the method also includes: if the terminal device is the first terminal device to migrate within the coverage of the source beam, determining the target network device based on the location information of the center point of the source beam; if the terminal device is not the first terminal device to migrate within the coverage of the source beam, determining the target network device corresponding to the first terminal device as the target network device.
  • the first terminal device to migrate or switch within the coverage of the source beam can be recorded as the first terminal device
  • the second terminal device to migrate or switch within the coverage of the source beam can be recorded as the second terminal device, and so on.
  • the second terminal device and subsequent terminal devices are not the first terminal device to migrate within the coverage of the source beam.
  • terminal device 33 is the first terminal device to be migrated or switched within the coverage of the source beam, and is recorded as the first terminal device;
  • terminal device 34 is the second terminal device to be migrated or switched within the coverage of the source beam, and is recorded as the second terminal device, that is, it is not the first terminal device to be migrated within the coverage of the source beam. Therefore, satellite 31 first performs the switching of terminal device 33, and then performs the switching of terminal device 34.
  • the target satellite can be determined according to the source beam center point position information.
  • the process of the satellite 31 determining the target satellite according to the source beam center point position information is similar to the process of the source satellite 1 selecting the target satellite according to the position information of the UE1 as described above.
  • the satellite 31 selects one of the multiple other satellites as the target satellite according to the source beam center point position information and the position information of other satellites, for example, the satellite closest to the source beam center point is selected as the target satellite.
  • the coverage of the satellite 31 includes multiple cells, the terminal device 33 is located in one of the cells, and there are multiple neighboring cells around the cell.
  • the satellite 31 can select one of the multiple neighboring cells as the target cell according to the source beam center point position information and the center position information of each neighboring cell, for example, the neighboring cell with the closest distance to the source beam center point is selected as the target cell.
  • the target cell may be within the coverage of the satellite 31 or within the coverage of other satellites. That is, the terminal device 33 can switch between different cells within the coverage of the same satellite, or between different satellites. Further, the satellite corresponding to the target cell is used as the target satellite.
  • the target satellite determined by the terminal device 33 in this embodiment is the satellite 32 shown in FIG. 3 .
  • satellite 31 can directly use the target satellite determined in the switching process of terminal device 33 as the target satellite corresponding to terminal device 34, that is, the target satellite determined by satellite 31 for terminal device 34 is also satellite 32. This is because, when satellite 31 switches terminal device 33 or 34, it determines the target satellite according to the position information of the center point of the source beam.
  • Terminal device 33 and terminal device 34 are located within the coverage range of the same source beam, so terminal device 33 and terminal device 34 correspond to the same center point of the source beam, so the target satellite determined for terminal device 33 and terminal device 34 is the same satellite.
  • terminal device 33 is the first terminal device switched in the source beam
  • satellite 31 can determine the target satellite according to several feasible implementation methods shown above.
  • the target satellite determined in the switching process of terminal device 33 can be directly used as the target satellite corresponding to terminal device 34.
  • This embodiment calculates and selects the target satellite or target cell once when the first terminal device switches, and directly uses the target satellite or target cell selected by the first switching in the subsequent terminal device switching process.
  • the present disclosure only needs to calculate and select once, and does not need to calculate and select for each terminal device separately, thereby reducing the computing resource consumption of the source network device and reducing the processing load of the source network device.
  • the switching request message is a switching request message for the first terminal device within the coverage range of the source beam, that is, the target network device receives the switching request message for the first time
  • the target beam is an existing beam in the target network device, or the target beam is a newly created beam of the target network device, wherein the center of the target beam is equal to the center of the source beam.
  • the terminal device 33 shown in FIG3 is the first terminal device to be migrated or switched within the coverage of the source beam; the terminal device 34 is the second terminal device to be migrated or switched within the coverage of the source beam.
  • the switching request message sent by the satellite 31 to the target satellite, such as the satellite 32 is a switching request message for the first terminal device within the coverage of the source beam, that is, the switching request message is the first switching request message carrying the position information of the center point of the source beam.
  • the satellite 32 After the satellite 32 receives the switching request message carrying the position information of the center point of the source beam for the first time, it can search whether there is an existing beam in the satellite 32 according to the position information of the center point of the source beam, and the center of the existing beam is equal to the center of the source beam, that is, match the existing beam equal to the center of the source beam from all the existing beams of the satellite 32. If it exists, the satellite 32 uses the existing beam as the target beam. If it does not exist, the satellite 32 creates a new beam so that the center of the newly created beam is equal to the center of the source beam, and uses the newly created beam as the target beam.
  • the target beam is the target beam after the migration of the first terminal device.
  • the switching request message sent by the satellite 31 to the target satellite is not a switching request message for the first terminal device within the coverage of the source beam. If the satellite 32 does not receive the switching request message for the first time, the satellite 32 can use the target beam determined when the terminal device 33 is switched as the target beam corresponding to the terminal device 34, that is, the target beam corresponding to the terminal device 34 is the target beam after the terminal device 33 is migrated.
  • the target network device searches for an existing beam or creates a new beam for the first terminal device that migrates or switches within the coverage of the source beam.
  • the existing beam found for the first time or the new beam created for the first time is directly used, so that when batch switching terminal devices between beams, at most only one target beam needs to be matched or created.
  • the present disclosure reduces the number of beams that the target network device matches or creates through the above method, improves the efficiency of batch switching between beams, and improves the efficiency of beam resource utilization.
  • FIG5 is a flow chart of a method for batch switching between beams provided by another embodiment of the present disclosure.
  • the method is executed by a target network device such as a target satellite or a target base station.
  • the method includes the following steps:
  • S501 Receive a switching request message sent by a source network device, where the switching request message includes source beam center point location information.
  • satellite 31 shown in FIG3 is a source satellite
  • satellite 32 is a target satellite
  • Terminal devices 33 and 34 are both within the coverage of the source beam of satellite 31.
  • satellite 31 can send a switching request message to the target satellite, i.e., satellite 32, for each terminal device within the coverage of the source beam, and the switching request message includes the source beam center point location information. Satellite 32 receives the switching request message.
  • S502 Determine a target beam according to the position information of the center point of the source beam, wherein the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold.
  • the target beam can be determined according to the source beam center point position information carried by the switching request message.
  • the target beam can be an existing beam of the satellite 32, or it can be a newly created beam of the satellite 32.
  • the distance between the center of the target beam and the center of the source beam is less than or equal to the preset threshold. It can be understood that the present embodiment does not limit the specific value of the preset threshold.
  • the preset threshold is used here to control the distance between the center of the target beam and the center of the source beam to be as small as possible, so that the overlap between the coverage range of the target beam and the coverage range of the source beam is as large as possible and the target beam covers all terminal devices within the coverage range of the source beam as much as possible, ensuring that all terminal devices within the coverage range of the source beam can be smoothly migrated to the target beam. It can be understood that, under the condition of ensuring that the distance between the center of the target beam and the center of the source beam is as small as possible, there is a preferred way that the center of the target beam is equal to the center of the source beam, that is, the coverage range of the target beam and the coverage range of the source beam are exactly overlapped and equal.
  • the distance range is related to the preset threshold.
  • the specific value of the preset threshold can be determined according to the distance range.
  • a switching response message can be sent to the satellite 31, and the switching response message includes the information of the target beam.
  • the satellite 31 can receive the switching response message fed back by the satellite 32.
  • the satellite 31 After the satellite 31 receives the switching response message fed back by the satellite 32, it can send a switching reconfiguration message to the terminal device 33 according to the switching response message.
  • the switching reconfiguration message carries the information of the target beam, so that the terminal device 33 can search for the target beam and access the target beam according to the information of the target beam.
  • the satellite 31 sends a switching completion message to the satellite 32, thereby completing the process of the terminal device 33 switching from the source beam of the satellite 31 to the target beam of the satellite 32.
  • the satellite 32 determines the target beam, it can send a switching response message to the satellite 31, and the switching response message includes the information of the target beam.
  • the satellite 31 can receive the switching response message fed back by the satellite 32.
  • the satellite 31 can send a switching reconfiguration message to the terminal device 34 according to the switching response message.
  • the switching reconfiguration message carries the information of the target beam, so that the terminal device 34 can search for the target beam and access the target beam according to the information of the target beam.
  • the satellite 31 sends a switching completion message to the satellite 32, thereby completing the process of the terminal device 34 switching from the source beam of the satellite 31 to the target beam of the satellite 32.
  • the source network device sends a switching request message carrying the source beam center point location information to the target network device for each terminal device within the coverage range of the source beam, so that the target network device determines the target beam according to the source beam center point location information. Since the switching request message received by the target network device each time carries the same source beam center point location information, the target beam determined by the target network device each time according to the same source beam center point location information is relatively fixed, so that the target beam determined by the target network device for different terminal devices within the coverage range of the source beam is the same.
  • the center of the same target beam determined by the target network device for each terminal device is as close as possible to the center of the source beam, that is, the coverage range of the target beam overlaps with the coverage range of the source beam as much as possible, so that the target beam covers all terminal devices within the coverage range of the source beam as much as possible. Therefore, the same target beam determined by the target network device for each terminal device is sufficient to accommodate all terminal devices within the coverage range of the source beam, and the target network device does not need to create different target beams for different terminal devices, thereby saving beam resources.
  • determining the target beam according to the position information of the center point of the source beam includes the following steps shown in FIG6:
  • Step 600 The target network device determines whether it is the first time to receive the switching request message including the source beam center point location information. If yes, execute S601; otherwise, execute S604.
  • Step 601 Based on the position information of the center point of the source beam, the target network device determines whether a first beam already exists in the target network device, and the distance between the center of the first beam and the center of the source beam is less than or equal to a preset threshold. In some embodiments, the center of the first beam may also be equal to the center of the source beam. If so, execute step 602; otherwise, execute step 603.
  • Step 602 Determine the first beam as the target beam.
  • Step 603 Create a second beam, where the distance between the center of the second beam and the center of the source beam is less than or equal to a preset threshold; in some embodiments, the center of the second beam may also be equal to the center of the source beam. Determine the second beam as the target beam.
  • the terminal device 33 shown in FIG3 is the first terminal device to be migrated or switched within the coverage of the source beam; the terminal device 34 is the second terminal device to be migrated or switched within the coverage of the source beam.
  • the switching request message sent by the satellite 31 to the target satellite, such as the satellite 32 is a switching request message for the first terminal device within the coverage of the source beam, that is, the switching request message is the first switching request message carrying the position information of the center point of the source beam.
  • the satellite 32 can search whether there is an existing beam in the satellite 32 according to the position information of the center point of the source beam, and the center of the existing beam is equal to the center of the source beam, that is, match the existing beam equal to the center of the source beam from all the existing beams of the satellite 32. If it exists, the satellite 32 uses the existing beam (recorded as the first beam) as the target beam. If it does not exist, the satellite 32 creates a new beam so that the center of the newly created beam is equal to the center of the source beam, and uses the newly created beam (recorded as the second beam) as the target beam.
  • Step 604 Based on the fact that it is not the first time that the target network device receives the switching request message, determine that the target beam is the target beam determined when the target network device receives the switching request message for the first time.
  • the switching request message sent by the satellite 31 to the target satellite, for example, the satellite 32 is not the switching request message received for the first time by the satellite 32.
  • the satellite 32 can use the target beam determined when the terminal device 33 is switched as the target beam corresponding to the terminal device 34, that is, the target beam corresponding to the terminal device 34 is the target beam after the terminal device 33 is migrated.
  • the target network device searches for an existing beam or creates a new beam for the first terminal device that migrates or switches within the coverage of the source beam.
  • the existing beam found for the first time or the new beam created for the first time is directly used, so that when batch switching terminal devices between beams, at most only one target beam needs to be matched or created.
  • the above method can reduce the number of beams that the target network device matches or creates, improve the efficiency of batch switching between beams, and improve the efficiency of beam resource utilization.
  • FIG7 is an overall flow chart of batch switching between beams provided in an embodiment of the present disclosure. Assume that there are two user equipment (UE) that need to be switched, and the distance between the two UEs is greater than the beam service radius R. As shown in FIG7 , the overall process includes the following steps:
  • Step 1 Batch switching between beams is triggered due to scenarios such as satellite movement and interference avoidance.
  • UE1 and UE2 shown in FIG7 are both UEs in beam 1.
  • Step 2 Source satellite 1 selects a target satellite based on the source beam center point position information.
  • source satellite 1 first performs the handover of UE1, that is, UE1 is the first terminal device to migrate or switch within the coverage of the source beam, and is recorded as the first terminal device.
  • Steps 2 to 7 shown in Figure 7 are the handover process of UE1.
  • source satellite 1 selects a target satellite based on the position information of the center point of the source beam. The specific selection method is as described above and will not be repeated here.
  • Step 3 The source satellite 1 sends a switching request message to the public processing module of the target satellite 2.
  • the switching request message carries the source beam center point position information.
  • Step 4 The public processing module of the target satellite 2 determines whether there is a beam according to the position of the center point of the source beam. If not, a new beam is created.
  • the public processing module of the target satellite 2 when the public processing module of the target satellite 2 receives the switching request message, since the switching request message carries the location information of the center point of the source beam, rather than the location information of a single terminal device, the public processing module of the target satellite 2 identifies the switching request message as a batch switching. In addition, since the public processing module of the target satellite 2 receives the switching request message carrying the location information of the center point of the source beam for the first time, the target satellite 2 determines that this switching is for the first terminal device within the coverage range of the source beam.
  • the target satellite 2 searches for an existing beam in the target satellite 2 according to the location of the center point of the source beam, and the distance between the center of the existing beam and the center of the source beam is less than or equal to a preset threshold, that is, matches an existing beam whose center distance from the source beam is less than or equal to a preset threshold from all existing beams of the target satellite 2.
  • the existing beam is equal to the center of the source beam. If it exists, the target satellite 2 uses the existing beam as the target beam. If not, the target satellite 2 creates a new beam so that the distance between the center of the newly created beam and the center of the source beam is less than or equal to a preset threshold, and the newly created beam is used as the target beam. In some embodiments, the center of the newly created beam is equal to that of the source beam. Assuming that there is no existing beam here, the target satellite 2 uses the newly created beam with the center point of the source beam as the center point as the target beam.
  • Step 5 The target satellite 2 sends a switching response message to the source satellite 1, and the switching response message carries the target beam information.
  • Step 6 Source satellite 1 sends a switching reconfiguration message to UE1, and the switching reconfiguration message carries target beam information.
  • Step 7 UE1 sends a handover completion message to the target satellite 2.
  • UE1 searches for the target beam according to the target beam information and accesses the target beam, and sends a switching completion message to the target satellite 2.
  • Step 8 Source satellite 1 directly uses the target satellite selected by UE1 during the handover process as the target satellite of UE2.
  • Steps 8 to 13 shown in Figure 7 are the handover process of UE2.
  • the source satellite 1 directly uses the target satellite selected by the handover process of UE1 as the target satellite of UE2.
  • Step 9 The source satellite 1 sends a switching request message to the public processing module of the target satellite 2.
  • the switching request message carries the source beam center point position information.
  • Step 10 The target satellite 2 directly uses the target beam determined by the switching process of UE1.
  • the public processing module of the target satellite 2 when the public processing module of the target satellite 2 receives the switching request message, since the switching request message carries the source beam center point location information rather than the location information of a single terminal device, the public processing module of the target satellite 2 identifies the switching request message as a batch switching. In addition, since this is not the first time that the public processing module of the target satellite 2 has received the switching request message carrying the source beam center point location information, the target satellite 2 determines that this switching is for subsequent terminal devices within the coverage of the source beam. According to the source beam center point location, it is determined that the target beam already exists at this location, that is, the beam selected or created by UE1 during the switching process, so the target beam can be directly selected.
  • Step 11 The target satellite 2 sends a switching response message to the source satellite 1.
  • the switching response message carries the target beam information.
  • Step 12 Source satellite 1 sends a switching reconfiguration message to UE2, where the switching reconfiguration message carries target beam information.
  • Step 13 UE2 sends a handover completion message to the target satellite 2.
  • UE2 searches for the target beam according to the target beam information and accesses the target beam, and sends a switching completion message to the target satellite 2.
  • FIG8 is a diagram showing an example of the plane position of batch switching provided by the present embodiment.
  • satellite 1 is recorded as the source satellite
  • satellite 2 is recorded as the target satellite.
  • the coverage area of satellite 1 is also called the coverage range of satellite 1
  • the coverage area of satellite 2 is also called the coverage range of satellite 2.
  • the beam service radius i.e., the beam radius
  • R The distance between UE1 and UE2 is greater than the beam service radius R.
  • UE1 and UE2 are located in Beam1 of satellite 1.
  • the target satellite creates Beam2 for UE1, and the center of Beam2 is the center of the source beam Beam1, i.e., the two are at the same position.
  • UE1 accesses Beam2.
  • the target satellite directly selects Beam2 for UE2.
  • UE2 also accesses Beam2, thereby completing the migration of all UEs in Beam1.
  • the target network device such as the target satellite, can create a new beam to cover all UEs in the source beam.
  • the above solution does not need to create multiple new beams, thereby saving beam resources.
  • the beams shown above such as Beam1, Beam2, and Beam3, specifically refer to service beams, i.e., beams used specifically for UE services in satellite communication networks.
  • the coverage of the beam is small, and it only serves a specific area.
  • the number of beams that can be transmitted by each satellite is limited.
  • the size of the service beam can completely cover the grid area, and the grid and the service beam match one by one, and the center points coincide.
  • the so-called grid refers to a regular grid cut into a certain granularity rule by longitude and latitude on the surface of the earth.
  • Each grid can have a number, namely the grid ID.
  • satellite 1 is recorded as the source satellite
  • satellite 2 is recorded as the target satellite.
  • the coverage area of satellite 1 can include multiple grids, and the coverage area of satellite 2 can also include multiple grids.
  • Each grid is cut into regular grids with a certain granularity rule based on longitude and latitude, and each grid corresponds to its own ID.
  • Beam1 is a beam of satellite 1
  • the coverage range of the beam is exactly the size of a grid, that is, the center point of the beam is equal to the center point of the grid.
  • the ID of the grid is recorded as ID1.
  • the coverage range of Beam1 includes UE1 and UE2.
  • each switching request message sent by the source network device carries the source beam center point location information.
  • the source beam center point location information has the following two expressions.
  • One expression method is to express the source beam center point location information with the grid ID corresponding to the source beam center.
  • Beam1 shown in Figure 9 is the source beam. Since the coverage range of the source beam is exactly the size of a grid, the center point of the grid is equal to the center point of the source beam. Therefore, the center point of the source beam can be replaced by the center point of the grid.
  • the grid ID1 shown in Figure 9 can be used to express the source beam center point location information.
  • Another expression method is to express the source beam center point location information with the longitude, latitude and altitude of the source beam center point.
  • any of the methods shown above can be used to express the source beam center point location information.
  • source satellite 1 transmits the source beam center point location information to target satellite 2 through a switching request message, so that target satellite 2 can search for or create a better beam resource.
  • this embodiment carries the source beam center point location information through the switching request message, which can be used by the target side to subsequently search for or create a better beam resource.
  • the target satellite or target cell when executing the switching of the first UE, is calculated and selected according to the position of the center point of the source beam.
  • the result selected in the first UE switching process is directly used as the target satellite or target cell.
  • the source side that is, the source network device side, calculates and selects the target satellite or target cell according to the position information of the UE when each UE switches.
  • the source side only calculates and selects the target satellite or target cell according to the position information of the center point of the source beam during the switching process of the first UE.
  • the subsequent UE switching process there is no need to calculate and select again, but directly use the target satellite or target cell selected in the first UE switching process, thereby reducing the amount of calculation on the source side.
  • the switching request message for UE1 and UE2 carries the location information of the center point of the source beam, and the target side, that is, the target network device (such as the target satellite 2), can identify it as a batch switching based on the location information of the center point of the source beam.
  • the switching request message for UE3 carries the location information of the UE level, and the target satellite 2 can identify it as a separate switching based on the location information of the UE level. Therefore, this embodiment carries the location information of the center point of the source beam in the switching request message, so that the target side can accurately distinguish whether the switching of a certain UE is a batch switching between beams or an individual switching.
  • the target side when the target side receives a switching request message, if it is determined that the switching request message carries the source beam center point location information, it is considered to be a batch switching between beams. If the switching request message is the first switching request message received by the target side that carries the source beam center point location information (e.g., position X), the target side searches for a beam with the same center point based on the source beam center point location. If the target side finds an existing beam that meets the conditions, the existing beam is used as the target beam so that the terminal device accesses the existing beam. Otherwise, the target side creates a new beam with the source beam center point location as the center point, and uses the new beam as the target beam so that the terminal device accesses the new beam.
  • the switching request message is the first switching request message received by the target side that carries the source beam center point location information (e.g., position X)
  • the target side searches for a beam with the same center point based on the source beam center point location. If the target side finds an existing
  • the target side directly uses the beam selected in the previous switching process or the newly created beam as the target beam.
  • the target side searches for an existing beam that can cover the UE based on the UE-level location information each time the target side receives a switching request message.
  • the method provided in this embodiment can reduce the allocation and occupancy of beam resources, improve beam resource utilization, and at the same time reduce the calculation workload on the target side and reduce the processing load.
  • FIG. 10 to FIG. 13 only extract some of the steps shown in FIG. 7 to further illustrate the improvement of the existing technology and the realization of the technical effect of these steps.
  • the method shown in this embodiment can support the target side to flexibly process according to different scenarios in the networking scenarios of satellite communications such as 5G expansion and 6G NTN networking, such as satellite networking and satellite-ground fusion networking, by carrying the source beam center point location information in the switching request message.
  • the method shown in this embodiment reduces the consumption of computing resources and reduces the satellite processing load by allowing the source side to calculate and screen the target satellite or target cell only once when the first UE switches, and directly use the results of the first switching screening in the subsequent switching process. By determining whether a switching UE is a batch switching user or a single switching user, it is convenient for the target side to select different processing strategies.
  • the method shown in this embodiment allows the target side to only search whether there is an existing beam as the target beam based on the source beam center position carried by the first switching UE.
  • the search results of the previous switching process are directly used, thereby reducing the target side's computing resource consumption and reducing the time-consuming switching process.
  • the target side creates a new beam as the target beam based on the center position of the source beam.
  • the users are switched in batches subsequently, there is no need to calculate and search for matching beams or create new beams. Instead, the beam created in the previous switching process is used directly, thereby reducing the computing resource consumption on the target side, reducing the switching process time, reducing the number of created beams, and improving beam resource allocation and utilization.
  • FIG14 is a schematic diagram of the structure of the inter-beam batch switching device provided in an embodiment of the present disclosure.
  • the inter-beam batch switching device provided in an embodiment of the present disclosure can execute the processing flow provided in the inter-beam batch switching method embodiment.
  • the inter-beam batch switching device can be set in the source network device, or the inter-beam batch switching device can be a component or assembly in the source network device, or the inter-beam batch switching device can be the source network device.
  • the inter-beam batch switching device 140 includes:
  • the sending module 141 is used to send a switching request message to a target network device for each terminal device when multiple terminal devices within the coverage of the source beam need to migrate.
  • the switching request message includes the location information of the center point of the source beam.
  • the target network device is used to determine the target beam according to the location information of the center point of the source beam, and the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold.
  • a receiving module 142 is configured to receive a switching response message fed back by the target network device, wherein the switching response message includes information of the target beam;
  • the migration module 143 is used to migrate the terminal device to the coverage of the target beam according to the switching response message.
  • the inter-beam batch switching device 140 also includes: a determination module 144, which is used to determine the target network device according to the position information of the center point of the source beam based on the fact that the terminal device is the first terminal device to migrate within the coverage of the source beam before sending a switching request message to the target network device for each terminal device; and determine the target network device corresponding to the first terminal device as the target network device based on the fact that the terminal device is not the first terminal device to migrate within the coverage of the source beam.
  • a determination module 144 which is used to determine the target network device according to the position information of the center point of the source beam based on the fact that the terminal device is the first terminal device to migrate within the coverage of the source beam before sending a switching request message to the target network device for each terminal device; and determine the target network device corresponding to the first terminal device as the target network device based on the fact that the terminal device is not the first terminal device to migrate within the coverage of the source beam.
  • the center of the target beam is equal to the center of the source beam.
  • the target beam is an existing beam in the target network device, or the target beam is a newly created beam by the target network device, and the distance between the center of the existing beam and the center of the newly created beam and the center of the source beam is less than or equal to a preset threshold. In some embodiments, the center of the existing beam and the center of the newly created beam are equal to the center of the source beam.
  • the target beam is the target beam after the migration of the first terminal device.
  • the inter-beam batch switching device of the embodiment shown in FIG14 can be used to execute the technical solution of the above-mentioned source network device side method embodiment. Its implementation principle and technical effect are similar and will not be repeated here.
  • FIG15 is a schematic diagram of the structure of the inter-beam batch switching device provided in an embodiment of the present disclosure.
  • the inter-beam batch switching device provided in an embodiment of the present disclosure can execute the processing flow provided in the inter-beam batch switching method embodiment.
  • the inter-beam batch switching device can be set in the target network device, or the inter-beam batch switching device can be a component or assembly in the target network device, or the inter-beam batch switching device can be the target network device.
  • the inter-beam batch switching device 150 includes:
  • the receiving module 151 is used to receive a switching request message sent by a source network device, wherein the switching request message includes source beam center point location information;
  • a determination module 152 configured to determine a target beam according to the position information of the center point of the source beam, wherein the distance between the center of the target beam and the center of the source beam is less than or equal to a preset threshold;
  • the sending module 153 is used to send a switching response message to the source network device, and the switching response message includes information of the target beam.
  • the source network device is used to migrate the terminal devices within the coverage of the source beam to the coverage of the target beam according to the switching response message.
  • the center of the target beam is equal to the center of the source beam.
  • the determination module 152 determines the target beam according to the source beam center point location information, it is specifically used to: if the receiving module 151 receives the switching request message including the source beam center point location information for the first time, then determine whether the first beam already exists in the target network device according to the source beam center point location information; if the first beam exists, determine the first beam as the target beam.
  • the distance between the center of the first beam and the center of the source beam is less than or equal to a preset threshold. In some embodiments, the center of the first beam is equal to the center of the source beam.
  • the determination module 152 is further configured to: if the first beam does not exist, create a second beam; and determine the second beam as the target beam.
  • the distance between the center of the second beam and the center of the source beam is less than or equal to a preset threshold. In some embodiments, the center of the second beam is equal to the center of the source beam.
  • the determination module 152 determines the target beam according to the source beam center point position information, Specifically, if the receiving module 151 does not receive the switching request message including the source beam center point location information for the first time, the target beam determined when the target network device receives the switching request message for the first time is used as a response to the target beam.
  • the inter-beam batch switching device of the embodiment shown in FIG15 can be used to execute the technical solution of the above-mentioned target network device side method embodiment. Its implementation principle and technical effect are similar and will not be repeated here.
  • each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the various embodiments of the present application.
  • the embodiment of the present disclosure further provides a source network device, as shown in Figure 16, the source network device includes a processor 160, a transceiver 161, and a memory 162.
  • the memory 162 stores a computer program, and the computer program is configured so that the processor 162 executes the method steps on the source network device side as above.
  • the transceiver 161 is used to receive and send data under the control of the processor 160 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by a processor and various circuits of a memory represented by a memory are linked together.
  • the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 161 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media.
  • the processor is responsible for managing the bus architecture and general processing, and the memory 162 may store data used by the processor 160 when performing operations.
  • the processor 160 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD).
  • the processor can also adopt a multi-core architecture.
  • the embodiment of the present disclosure further provides a target network device, as shown in Figure 17, the target network device includes a processor 170, a transceiver 171, and a memory 172.
  • the memory 172 stores a computer program, and the computer program is configured so that the processor 172 executes the method steps on the target network device side as described above.
  • the transceiver 171 is used to receive and send data under the control of the processor 170 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by a processor and various circuits of a memory represented by a memory are linked together.
  • the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 171 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission media include transmission media such as wireless channels, wired channels, and optical cables.
  • the processor is responsible for managing the bus architecture and general processing, and the memory 172 may store data used by the processor 170 when performing operations.
  • the processor 170 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD).
  • the processor can also adopt a multi-core architecture.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, which stores a program for causing the processor to execute the inter-beam batch switching method executed by the source network device of the above embodiment.
  • an embodiment of the present disclosure also provides a processor-readable storage medium, which stores a program, and the program is used to enable the processor to execute the inter-beam batch switching method executed by the target network device of the above embodiment.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor storage such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.
  • a computer-usable storage media including but not limited to disk storage and optical storage, etc.
  • each process and/or box in the flowchart and/or block diagram, and the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer executable instructions.
  • These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the function specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
  • processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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Abstract

本公开涉及一种波束间批量切换方法、装置、设备及存储介质。本公开通过源网络设备针对源波束覆盖范围内的每个终端设备，向目标网络设备发送携带源波束中心点位置信息的切换请求消息，使得目标网络设备根据源波束中心点位置信息，确定目标波束。即使源波束覆盖范围内多个终端设备之间的距离较远，由于目标网络设备为每个终端设备确定的同一目标波束的中心与源波束的中心尽可能接近，使得该目标波束的覆盖范围与源波束的覆盖范围尽可能重叠，从而使得该目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备。因此，目标网络设备为每个终端设备确定的同一目标波束足以容纳源波束覆盖范围内的全部终端设备，节约了波束资源。

Description

波束间批量切换方法、装置、设备及存储介质
相关申请的交叉引用
本公开要求于2023年11月17日提交中国专利局、申请号为2023115416983、发明名称为“波束间批量切换方法、装置、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及通信技术领域，尤其涉及一种波束间批量切换方法、装置、设备及存储介质。
背景技术
在目前的卫星通信系统中，由于干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素，会触发波束间批量用户切换，即同一波束覆盖范围内的多个终端设备分别需要进行小区切换。
在当前的波束间批量切换过程中，源网络设备(例如源卫星或源基站)需要为每个终端设备选择目标网络设备(例如目标卫星或目标基站)，并向目标网络设备发送切换请求消息，该切换请求消息包括终端设备的位置信息。目标网络设备在接收到每个切换请求消息时，需要根据终端设备的位置信息，确定该位置信息所对应的位置是否已存在波束覆盖，如果已存在，则将终端设备切入到该波束，如果不存在，则以该终端设备的位置为中心创建新的波束。
如果源波束覆盖范围内多个终端设备之间的距离较远，例如，多个终端设备之间的距离大于波束覆盖的半径，则目标网络设备需要创建多个新的波束，导致波束资源浪费。
发明内容
为了解决上述技术问题或者至少部分地解决上述技术问题，本公开提供了一种波束间批量切换方法、装置、设备及存储介质，以节省波束资源。
第一方面，本公开实施例提供一种波束间批量切换方法，应用于源网络设备，包括：
当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，该切换请求消息包括源波束中心点位置信息；该目标网络设备用于根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；
接收该目标网络设备反馈的切换响应消息，该切换响应消息包括该目标波束的信息；
根据该切换响应消息，将该终端设备迁移到该目标波束的覆盖范围。
可选的，针对每个所述终端设备，向所述目标网络设备发送切换请求消息之前，所述方法还包括：
基于所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备，根据所述源波束中心点位置信息，确定所述目标网络设备；
基于所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备，将所述第一个终端设备对应的目标网络设备确定为所述目标网络设备。
可选的，该目标波束的中心与该源波束的中心相等。
可选的，当所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述目标网络设备中已存在的波束或者所述目标网络设备新创建的波束。
可选的，当所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述第一个终端设备迁移后的目标波束。
第二方面，本公开实施例提供一种波束间批量切换方法，应用于目标网络设备，包括：
接收源网络设备发送的切换请求消息，该切换请求消息包括源波束中心点位置信息；
根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；
向该源网络设备发送切换响应消息，该切换响应消息包括该目标波束的信息，该源网络设备用于根据该切换响应消息，将源波束覆盖范围内的终端设备迁移到该目标波束的覆盖范围。
可选的，该目标波束的中心与该源波束的中心相等。
可选的，根据该源波束中心点位置信息，确定目标波束，包括：
基于所述切换请求消息是第一次接收，根据所述源波束中心点位置信息，确定所述目标网络设备中是否已存在第一波束，所述第一波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
若所述目标网络设备中存在所述第一波束，将所述第一波束确定为所述目标波束。
可选的，所述方法还包括：
若所述目标网络设备中不存在所述第一波束，创建第二波束，所述第二波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
将该第二波束确定为该目标波束。
可选的，根据该源波束中心点位置信息，确定目标波束，包括：
基于所述切换请求消息不是第一次接收，确定所述目标波束为当所述切换请求信息是第一次接收时确定的目标波束。
第三方面，本公开实施例提供一种波束间批量切换装置，包括：
发送模块，用于当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，该切换请求消息包括源波束中心点位置信息；该目标网络设备用于根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；。
接收模块，用于接收该目标网络设备反馈的切换响应消息，该切换响应消息包括该目标波束的信息；
迁移模块，用于根据该切换响应消息，将该终端设备迁移到该目标波束的覆盖范围。
第四方面，本公开实施例提供一种波束间批量切换装置，包括：
接收模块，用于接收源网络设备发送的切换请求消息，该切换请求消息包括源波束中心点位置信息；
确定模块，用于根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；
发送模块，用于向该源网络设备发送切换响应消息，该切换响应消息包括该目标波束的信息，该源网络设备用于根据该切换响应消息，将源波束覆盖范围内的终端设备迁移到该目标波束的覆盖范围。
第五方面，本公开实施例提供一种源网络设备，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在该处理器的控制下收发数据；处理器，用于读取该存储器中的计算机程序并执行以下操作：
当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，该切换请求消息包括源波束中心点位置信息；该目标网络设备用于根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；
接收该目标网络设备反馈的切换响应消息，该切换响应消息包括该目标波束的信息；
根据该切换响应消息，将该终端设备迁移到该目标波束的覆盖范围。
可选的，该处理器还用于：
基于所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备，根据所述源波束中心点位置信息，确定所述目标网络设备；
基于所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备，将所述第一个终端设备对应的目标网络设备确定为所述目标网络设备。
可选的，该目标波束的中心与该源波束的中心相等。
可选的，当所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述目标网络设备中已存在的波束或者所述目标网络设备新创建的波束。
可选的，当所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述第一个终端设备迁移后的目标波束。
第六方面，本公开实施例提供一种目标网络设备，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在该处理器的控制下收发数据；处理器，用于读取该存储器中的计算机程序并执行以下操作：
接收源网络设备发送的切换请求消息，该切换请求消息包括源波束中心点位置信息；
根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值；
向该源网络设备发送切换响应消息，该切换响应消息包括该目标波束的信息，该源网络设备用于根据该切换响应消息，将源波束覆盖范围内的终端设备迁移到该目标波束的覆盖范围。
可选的，该目标波束的中心与该源波束的中心相等。
可选的，该处理器根据该源波束中心点位置信息，确定目标波束时，具体用于：
基于所述切换请求消息是第一次接收，根据所述源波束中心点位置信息，确定所述目标网络设备中是否已存在第一波束，所述第一波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
若所述目标网络设备中存在所述第一波束，将所述第一波束确定为所述目标波束。
可选的，若所述目标网络设备中不存在所述第一波束，创建第二波束，所述第二波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；将所述第二波束确定为所述目标波束。
可选的，该处理器根据该源波束中心点位置信息，确定目标波束时，具体用于：
基于所述切换请求消息不是第一次接收，确定所述目标波束为当所述切换请求信息是第一次接收时确定的目标波束。
第七方面，本公开实施例提供一种处理器可读存储介质，该处理器可读存储介质存储有程序，该程序用于使该处理器执行如第一方面该的方法。
第八方面，本公开实施例提供一种处理器可读存储介质，该处理器可读存储介质存储有程序，该程序用于使该处理器执行如第二方面该的方法。
本公开实施例提供的波束间批量切换方法、装置、设备及存储介质，通过源网络设备针对源波束覆盖范围内的每个终端设备，向目标网络设备发送携带源波束中心点位置信息的切换请求消息，使得目标网络设备根据源波束中心点位置信息，确定目标波束。由于目标网络设备每次接收到的切换请求消息均携带相同的源波束中心点位置信息，而目标网络设备每次根据同一源波束中心点位置信息， 确定的目标波束是相对固定的，因此，目标网络设备针对源波束覆盖范围内的不同终端设备确定的目标波束是相同的。也就是说，即使源波束覆盖范围内多个终端设备之间的距离较远，例如大于波束覆盖的半径，但是，由于目标网络设备为每个终端设备确定的同一目标波束的中心与源波束的中心尽可能接近，使得该目标波束的覆盖范围与源波束的覆盖范围尽可能重叠，从而使得该目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备。因此，目标网络设备为每个终端设备确定的同一目标波束足以容纳源波束覆盖范围内的全部终端设备，目标网络设备不需要为不同的终端设备创建不同的目标波束，因此节约了波束资源。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中波束间批量切换的整体流程图；
图2为现有技术中批量切换平面位置示例图；
图3为本公开实施例提供的波束间批量切换方法的卫星通信系统的架构示意图；
图4为本公开实施例提供的波束间批量切换方法流程图；
图5为本公开另一实施例提供的波束间批量切换方法流程图；
图6为本公开另一实施例提供的波束间批量切换方法流程图；
图7为本公开实施例提供的波束间批量切换的整体流程图；
图8所示为本实施例提供的批量切换平面位置示例图；
图9为本公开实施例提供的网格和波束的示意图；
图10为本公开实施例提供的波束间批量切换方法流程图；
图11为本公开实施例提供的波束间批量切换方法流程图；
图12为本公开实施例提供的波束间批量切换方法流程图；
图13为本公开实施例提供的波束间批量切换方法流程图；
图14为本公开实施例提供的波束间批量切换装置的结构示意图；
图15为本公开实施例提供的波束间批量切换装置的结构示意图；
图16为本公开实施例提供的源网络设备的结构示意图；
图17为本公开实施例提供的目标网络设备的结构示意图。
具体实施方式
本发明实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在目前的卫星通信系统中，由于干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素，会触发波束间批量用户切换，即同一波束覆盖范围内的每个终端设备分别需要进行小区切换。
在当前的波束间批量切换过程中，源网络设备(例如源卫星或源基站)需要为每个终端设备选择目标网络设备(例如目标卫星或目标基站)，并向目标网络设备发送切换请求消息，该切换请求消息包括终端设备的位置信息(例如经度、纬度、高度)。目标网络设备在接收到每个切换请求消息时，需要根据终端设备的位置信息，确定该位置信息所对应的位置是否已存在波束覆盖，例如计算终端设备到所有已存在波束中心的距离是否小于波束服务半径R(小于才认为可以覆盖)。如果已存在，则将终端设备切入到该波束，如果不存在，则以该终端设备的位置为中心创建新的波束。
图1所示为现有技术中波束间批量切换的整体流程图。假设有2个终端设备(User Equipment，UE)需要切换，且2个UE之间的距离大于波束服务半径R。如图1所示，该整体流程包括如下步骤：
步骤1.由于卫星移动、干扰规避等场景触发波束间批量切换。
例如，由于干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素触发的波束间(小区间)批量用户切换，即需要将波束1(Beam1)中的所有UE全部迁移走。具体的，图1所示的UE1和UE2均是波束1中的UE。
步骤2.源卫星1根据UE1位置选择目标卫星。
例如源卫星1先执行UE1的切换，图1所示的步骤2-步骤7是UE1的切换过程。在步骤2中，源卫星1根据UE1的位置信息，选择目标卫星。在一种可行的实现方式中，源卫星1周围可能存在多个其他卫星，源卫星1可以根据UE1的位置信息和其他卫星的位置信息，从多个其他卫星中选取一个作为目标卫星，例如，目标卫星与UE1之间的距离最近。在另一种可行的实现方式中，源卫星1的覆盖范围包括多个小区，UE1位于其中一个小区内，该小区周围存在多个邻小区；源卫星1可以根据UE1的位置信息和每个邻小区的中心位置信息，从多个邻小区中选取一个作为目标小区，例如，选取与UE1之间的距离最近的邻小区为目标小区。可以理解的是，该目标小区可能在源卫星1的覆盖范围内，也可能在其他卫星的覆盖范围内，也就是说，UE1可以在同一卫星覆盖范围内的不同小区之间切换，也可以在不同卫星之间切换。在一些实施例中，将该目标小区对应的卫星作为目标卫星。此外，需要理解的是，此处给出了源卫星1根据UE1的位置信息，选择目标卫星的几种可行的实现方式，只是示意性说明，并不做具体限制，另外，也不限于这几种可行的实现方式，只要能够选择出合适的目标卫星或目标小区即可。假设步骤2选择出的目标卫星是如图1所示的目标卫星2。
步骤3.源卫星1向目标卫星2的公共处理模块发送切换请求消息，该切换请求消息携带UE1位置信息。
步骤4.目标卫星2的公共处理模块根据UE1位置判断是否存在波束，不存在则创建新波束，例如Beam2。
例如，目标卫星2根据UE1的位置信息判断是否存在波束可以覆盖UE1，即判断是否有已存在的波束可以覆盖UE1。
假设不存在已有波束可以覆盖UE1，则目标卫星2需要以UE1的位置为中心点创建新的波束，例如，Beam2。
步骤5.目标卫星2向源卫星1发送切换响应消息，该切换响应消息携带Beam2信息。
步骤6.源卫星1向UE1发送切换重配消息，该切换重配消息携带Beam2信息。
步骤7.UE1向目标卫星2发送切换完成消息。
例如UE1根据Beam2信息搜索Beam2波束并接入到目标波束Beam2，并向目标卫星2发送切换完成消息。
步骤8.源卫星1根据UE2位置选择目标卫星。
例如源卫星1执行完UE1的切换后，执行UE2的切换，图1所示的步骤8-步骤13是UE2的切换过程。在步骤8中，源卫星1根据UE2位置选择目标卫星。具体的，步骤8的具体实现过程同理于步骤2的实现过程，此处不再赘述。但是，可以理解的是，源卫星1给UE1选择的目标卫星和源卫星1给UE2选择的目标卫星，可能是同一个目标卫星，也可能是不同的目标卫星。因为源卫星1是基于UE的位置选择目标卫星。而UE1的位置和UE2的位置不同。当UE1和UE2之间的距离比较远时，例如，UE1和UE2之间的距离大于波束服务半径R，源卫星1给UE1选择的目标卫星和源卫星1给UE2选择的目标卫星可能不同。当UE1和UE2之间的距离比较近时，例如，UE1和UE2之间的距离小于波束服务半径R，源卫星1给UE1选择的目标卫星和源卫星1给UE2选择的目标卫星可能相同。因此，源卫星1给UE1选择的目标卫星和源卫星1给UE2选择的目标卫星，可能相同，也可能不同。
步骤9.源卫星1向目标卫星2的公共处理模块发送切换请求消息，该切换请求消息携带UE2位置信息。
步骤10.目标卫星2的公共处理模块根据UE2位置判断是否存在波束，不存在则创建新波束，例如Beam3。
例如，目标卫星2根据UE2的位置信息判断是否存在波束可以覆盖UE2，即判断是否有已存在的波束可以覆盖UE2。
假设不存在已有波束可以覆盖UE2，则目标卫星2需要以UE2的位置为中心点创建新的波束，例如，Beam3。可以理解的是，由于UE1和UE2之间的距离大于波束服务半径R，因此，以UE1的位置为中心点创建的Beam2无法覆盖到UE2，因此，需要为UE2创建一个不同于Beam2的波束，例如，Beam3。
步骤11.目标卫星2向源卫星1发送切换响应消息，该切换响应消息携带Beam3信息。
步骤12.源卫星1向UE2发送切换重配消息，该切换重配消息携带Beam3信息。
步骤13.UE2向目标卫星2发送切换完成消息。
例如，UE2根据Beam3信息搜索Beam3波束并接入到目标波束Beam3，并向目标卫星2发送切换完成消息。
图2所示为现有技术中批量切换平面位置示例图，例如图2中的卫星1记为源卫星，卫星2记为目标卫星。卫星1覆盖区域也叫卫星1的覆盖范围，卫星2覆盖区域也叫卫星2的覆盖范围，波束服务半径即波束半径记为R，UE1和UE2之间的距离大于波束服务半径R。在批量切换之前，UE1和UE2位于卫星1的Beam1中。在切换过程中，目标卫星为UE1创建Beam2，Beam2的中心是UE1的位置，然后UE1接入Beam2。目标卫星为UE2创建Beam3，Beam3的中心是UE2的位置，然后UE2接入Beam3，从而完成Beam1中所有UE的全部迁移。
通过图1和图2可知，如果源波束例如Beam1覆盖范围内的UE的个数不限于2个，即不限于UE1和UE2，而是还有更多的UE。如果多个UE之间的距离较远，例如，多个UE之间的距离大于波束覆盖的半径，则目标网络设备例如目标卫星需要创建多个新的波束(因为在每个UE的切换过程中，为该UE创建的波束可能无法覆盖其他UE)，从而导致波束资源浪费。
针对上述问题，本申请实施例提供了波束间批量切换方法及装置，用以节约波束资源。
其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
本申请实施例提供的技术方案可以适用于多种系统。例如适用的系统可以是长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio，NR)系统及其演进通信系统等。这多种系统中可以包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evolved Packet System，EPS)、5G系统(5GS)等。
本申请实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以是USB存储设备、其他个人计算机内存设备和加密狗，也可以经无线接入网(Radio Access  Network，RAN)与一个或多个核心网(Core Network，CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)、个人计算机、平板电脑、机器类通信(Machine-type Communication，MTC)终端设备等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)以及满足本定义限制的无线接入器和路由器/调制解调器等，本申请实施例中并不限定。
本申请实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本申请实施例涉及的网络设备可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)等，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)、网络测试设备等，本申请实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralizedunit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
另外，本申请实施例提供的技术方案不限于适用于如上所示的多种系统，还可以适用于5G、5G扩展、6G非地面网络(Non-Terrestrial Networks，NTN)例如卫星组网、星地融合组网等卫星通信系统的站间或星间切换、站内或星内切换等场景。本申请实施例提供的波束间批量切换方法包括源侧(即源网络设备，例如源卫星、源基站等)针对批量切换的处理过程、切换请求消息携带的位置信息、目标侧(即目标网络设备例如目标卫星、目标基站等)针对批量切换的处理过程等。下面结合具体的实施例进行介绍。
图3为可适用于本申请实施例提供的波束间批量切换方法的卫星通信系统的架构示意图，该卫星通信系统可以包括卫星31、卫星32、与卫星31通信的终端设备33、以及与卫星31通信的终端设备34。虽然图3仅示出了两个卫星、两个终端设备，但是，图3仅为示意性说明，并不构成对本申请实施例波束间批量切换方法的适用场景的限定。
可以理解的，上述图3所示的卫星通信系统，仅仅是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定。例如，该卫星通信系统中还可以包括其他设备，如核心网设备、网络控制设备等(图3未示出)。
本申请实施例描述的通信系统以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定。本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面对本申请实施例提供的波束间批量切换方法进行具体阐述。
图4为本公开实施例提供的波束间批量切换方法流程图。该方法可以由源网络设备例如源卫星或源基站执行。如图4所示，该方法具体步骤如下：
S401、当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，该切换请求消息包括源波束中心点位置信息；该目标网络设备用于根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值。
例如图3所示的卫星31是源卫星，卫星32是目标卫星。终端设备33和终端设备34均在卫星31的源波束覆盖范围内。假设干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素触发了波束间(小区间)批量用户切换，即源波束覆盖范围内的每个终端设备需要迁移出源波束，此时，卫星31可以针对源波束覆盖范围内的每个终端设备，向目标卫星即卫星32发送切换请求消息，该切换请求消息包括源波束中心点位置信息。
例如，卫星31先执行终端设备33的切换，需要向卫星32发送切换请求消息，该切换请求消息包括源波束中心点位置信息。卫星31执行完终端设备33的切换后，再执行终端设备34的切换，同样需要向卫星32发送切换请求消息，该切换请求消息包括源波束中心点位置信息。也就是说，卫星31针对源波束覆盖范围内的每个终端设备，均需要向卫星32发送一次切换请求消息，且每次发送的切换请求消息均携带源波束中心点位置信息，而不再是携带每个终端设备各自的位置信息。
当卫星32每次接收到切换请求消息时，可以根据该切换请求消息携带的源波束中心点位置信息，确定目标波束，目标波束可以是卫星32已有的波束，或者可以是卫星32新创建的波束，目标波束的中心与源波束的中心之间的距离小于或等于预设阈值。可以理解的是，本实施例并不限定预设阈值的具体取值，此处采用预设阈值是为了控制目标波束的中心与源波束的中心之间的距离尽可能的小，从而使得目标波束的覆盖范围和源波束的覆盖范围之间的重叠度尽可能大，从而使得目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备，保证源波束覆盖范围内的全部终端设备能够顺利的迁移到目标波束中。可以理解的是，在保证目标波束的中心与源波束的中心之间的距离尽可能的小的情况下，有一种优选的方式是目标波束的中心与源波束的中心相等，即目标波束的覆盖范围和源波束的覆盖范围正好完全重叠、相等。但是，在实际操作中或者现实的场景中，允许目标波束的中心与源波束的中心之间存在合理的距离范围，该距离范围与预设阈值相关，例如，根据该距离范围可以确定预设阈值的具体取值。
可以理解的是，由于卫星32每次接收到的切换请求消息均携带相同的源波束中心点位置信息，而卫星32每次根据同一源波束中心点位置信息，确定的目标波束是相对固定的，因此，卫星32针对源波束覆盖范围内的不同终端设备确定的目标波束是相同的。
S402、接收该目标网络设备反馈的切换响应消息，该切换响应消息包括该目标波束的信息。
例如，在针对终端设备33的切换过程中，当卫星32确定出目标波束后，可以向卫星31发送切换响应消息，该切换响应消息包括该目标波束的信息。相应的，卫星31可以接收卫星32反馈的该切换响应消息。
同理，在针对终端设备34的切换过程中，当卫星32确定出目标波束后，可以向卫星31发送切换响应消息，该切换响应消息包括该目标波束的信息。相应的，卫星31可以接收卫星32反馈的该切换响应消息。
S403、根据该切换响应消息，将该终端设备迁移到该目标波束的覆盖范围。
例如，在针对终端设备33的切换过程中，当卫星31接收到卫星32反馈的该切换响应消息后，可以根据该切换响应消息，向终端设备33发送切换重配消息。该切换重配消息携带该目标波束的信息。终端设备33可以根据该目标波束的信息，搜索该目标波束并接入到该目标波束，然后向卫星32发送切换完成消息，从而完成终端设备33从卫星31的源波束切换到卫星32的目标波束的过程。
同理，在针对终端设备34的切换过程中，当卫星31接收到卫星32反馈的该切换响应消息后，可以根据该切换响应消息，向终端设备34发送切换重配消息。该切换重配消息携带该目标波束的信息。终端设备34可以根据该目标波束的信息，搜索该目标波束并接入到该目标波束，然后向卫星32发送切换完成消息，从而完成终端设备34从卫星31的源波束切换到卫星32的目标波束的过程。
本公开实施例通过源网络设备针对源波束覆盖范围内的每个终端设备，向目标网络设备发送携带源波束中心点位置信息的切换请求消息，使得目标网络设备根据源波束中心点位置信息，确定目标波束。由于目标网络设备每次接收到的切换请求消息均携带相同的源波束中心点位置信息，因此目标网络设备每次根据同一源波束中心点位置信息确定的目标波束是相对固定的，从而使得目标网络设备针对源波束覆盖范围内的不同终端设备确定的目标波束是相同的。也就是说，即使源波束覆盖范围内多个终端设备之间的距离较远，例如大于波束覆盖的半径，但是，由于目标网络设备为每个终端设备确定的同一目标波束的中心与源波束的中心尽可能接近，使得该目标波束的覆盖范围与源波束的覆盖范围尽可能重叠，从而使得该目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备。因此，目标网络设备为每个终端设备确定的同一目标波束足以容纳源波束覆盖范围内的全部终端设备，目标网络设备不需要为不同的终端设备创建不同的目标波束，因此节约了波束资源。
可选的，针对源波束覆盖范围内的每个终端设备，在向该目标网络设备发送切换请求消息之前，该方法还包括：若所述终端设备是该源波束覆盖范围内迁移的第一个终端设备，根据该源波束中心点位置信息，确定该目标网络设备；若所述终端设备不是该源波束覆盖范围内迁移的第一个终端设备，将该第一个终端设备对应的该目标网络设备确定为所述目标网络设备。
例如，在本实施例中，可以将源波束覆盖范围内第一个进行迁移或切换的终端设备记为第一个终端设备，将源波束覆盖范围内第二个进行迁移或切换的终端设备记为第二个终端设备，依此类推。其中，第二个终端设备及以后的终端设备均不是所述源波束覆盖范围内迁移的第一个终端设备。
如图3所示，终端设备33是源波束覆盖范围内第一个进行迁移或切换的终端设备，记为第一个终端设备；终端设备34是源波束覆盖范围内第二个进行迁移或切换的终端设备，记为第二个终端设备，即不是所述源波束覆盖范围内迁移的第一个终端设备。因此，卫星31先执行终端设备33的切换，再执行终端设备34的切换。
在卫星31执行终端设备33的切换时，可根据源波束中心点位置信息，确定目标卫星。具体的，卫星31根据源波束中心点位置信息，确定目标卫星的过程类似于如上所述的源卫星1根据UE1的位置信息选择目标卫星的过程。例如，在一种可行的实现方式中，卫星31周围存在多个其他卫星，卫星31根据源波束中心点位置信息和其他卫星的位置信息，从多个其他卫星中选取一个作为目标卫星，例如，选取与源波束中心点距离最近的卫星作为目标卫星。在另一种可行的实现方式中，卫星31的覆盖范围包括多个小区，终端设备33位于其中一个小区内，该小区周围存在多个邻小区，卫星31可以根据源波束中心点位置信息和每个邻小区的中心位置信息，从多个邻小区中选取一个作为目标小区，例如，选取与源波束中心点之间的距离最近的邻小区作为目标小区。可以理解的是，该目标小区可能在卫星31的覆盖范围内，也可能在其他卫星的覆盖范围内。也就是说，终端设备33可以在同一卫星覆盖范围内的不同小区之间切换，也可以在不同卫星之间切换。进一步，将该目标小区对应的卫星作为目标卫星。例如本实施例为终端设备33确定的目标卫星是如图3所示的卫星32。
当卫星31执行完终端设备33的切换，再执行终端设备34的切换时，卫星31可以直接将终端设备33切换过程中确定的目标卫星作为终端设备34对应的目标卫星，即卫星31给终端设备34确定的目标卫星也是卫星32。这是因为，卫星31在执行终端设备33的切换或终端设备34的切换时，均是根据源波束中心点位置信息确定目标卫星。而终端设备33和终端设备34位于同一源波束覆盖范围内，因此，终端设备33和终端设备34对应于同一个源波束中心点，从而给终端设备33和终端设备34确定的目标卫星是同一个卫星。可以理解的是，在实际操作中，如果终端设备33是源波束中第一个切换的终端设备，那么卫星31可以根据如上所示的几种可行的实现方式确定目标卫星。对于源波束中不是第一个切换的终端设备例如终端设备34而言，可以直接将终端设备33切换过程中确定的目标卫星作为终端设备34对应的目标卫星。
本实施例通过在第一个终端设备切换时计算筛选一次目标卫星或目标小区，在后续终端设备的切换过程中直接使用第一次切换筛选的目标卫星或目标小区。通过上述方法，本公开只需计算筛选一次，不需要针对每个终端设备分别进行计算筛选，从而减少了源网络设备的计算资源消耗，降低了源网络设备处理负荷。
上述实施例提到了在保证目标波束的中心与源波束的中心之间的距离尽可能小的情况下，有一种优选的方式是目标波束的中心与源波束的中心相等，下面分不同的情况进行介绍。
具体的，当该切换请求消息是针对该源波束覆盖范围内第一个终端设备的切换请求消息时，即所述目标网络设备是第一次接收该切换请求消息，该目标波束是该目标网络设备中已存在的波束，或者该目标波束是该目标网络设备新创建的波束，其中，所述目标波束的中心与所述源波束的中心相等。
例如，图3所示的终端设备33是源波束覆盖范围内第一个进行迁移或切换的终端设备；终端设备34是源波束覆盖范围内第二个进行迁移或切换的终端设备。在针对终端设备33的切换过程中，卫星31向目标卫星例如卫星32发送的切换请求消息是针对源波束覆盖范围内第一个终端设备的切换请求消息，即该切换请求消息是第一个携带源波束中心点位置信息的切换请求消息。卫星32第一次接收到携带源波束中心点位置信息的切换请求消息后，可以根据源波束中心点位置信息查找卫星32中是否有已存在的波束，且已存在的波束的中心与源波束的中心相等，即从卫星32已存在的所有波束中匹配出与源波束的中心相等的已存在的波束。如果存在，则卫星32将该已存在的波束作为目标波束。如果不存在，则卫星32创建新的波束，使得新创建的波束的中心与源波束的中心相等，并将该新创建的波束作为目标波束。
另外，当该切换请求消息是针对该源波束覆盖范围内非第一个终端设备的切换请求消息时，即所述目标网络设备不是第一次接收该切换请求消息，该目标波束是该第一个终端设备迁移后的目标波束。
在针对终端设备34的切换过程中，卫星31向目标卫星例如卫星32发送的切换请求消息不是针对源波束覆盖范围内第一个终端设备的切换请求消息。卫星32不是第一次接收所述切换请求消息，则卫星32可以将终端设备33切换时确定的目标波束作为终端设备34对应的目标波束，即终端设备34对应的目标波束是终端设备33迁移后的目标波束。
本实施例通过目标网络设备针对源波束覆盖范围内第一个进行迁移或切换的终端设备，查找已存在的波束或创建新的波束。针对该源波束覆盖范围内后续进行迁移或切换的终端设备，直接使用第一次查找到的已存在的波束或第一次创建的新波束，使得波束间批量切换终端设备时，最多只需匹配或创建一个目标波束。本公开通过上述方法减少了目标网络设备匹配或创建波束的个数，提高了波束间批量切换效率，提高了波束资源使用效率。
图5为本公开另一实施例提供的波束间批量切换方法流程图。该方法由目标网络设备例如目标卫星或目标基站来执行，在本实施例中，该方法包括以下步骤：
S501、接收源网络设备发送的切换请求消息，该切换请求消息包括源波束中心点位置信息。
例如，图3所示的卫星31是源卫星，卫星32是目标卫星。终端设备33和终端设备34均在卫星31的源波束覆盖范围内。假设干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素触发了波束间(小区间)批量用户切换，即源波束覆盖范围内的多个终端设备需要迁移出源波束，卫星31可以针对源波束覆盖范围内的每个终端设备，向目标卫星即卫星32发送切换请求消息，该切换请求消息包括源波束中心点位置信息。卫星32接收该切换请求消息。
S502、根据该源波束中心点位置信息，确定目标波束，该目标波束的中心与该源波束的中心之间的距离小于或等于预设阈值。
当卫星32每次接收到切换请求消息时，可以根据该切换请求消息携带的源波束中心点位置信息，确定目标波束。目标波束可以是卫星32已有的波束，或者可以是卫星32新创建的波束。目标波束的中心与源波束的中心之间的距离小于或等于预设阈值。可以理解的是，本实施例并不限定预设阈值的具体取值，此处采用预设阈值是为了控制目标波束的中心与源波束的中心之间的距离尽可能的小，从而使得目标波束的覆盖范围和源波束的覆盖范围之间的重叠度尽可能大以及目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备，保证源波束覆盖范围内的全部终端设备能够顺利的迁移到目标波束中。可以理解的是，在保证目标波束的中心与源波束的中心之间的距离尽可能的小的情况下，有一种优选的方式是目标波束的中心与源波束的中心相等，即目标波束的覆盖范围和源波束的覆盖范围正好完全重叠、相等。但是，在实际操作中或者现实的场景中，目标波束的中心可以与源波束的中心之间存在合理的距离范围，该距离范围与预设阈值相关。例如，根据该距离范围可以确定预设阈值的具体取值。
S503、向该源网络设备发送切换响应消息，该切换响应消息包括该目标波束的信息，该源网络设备用于根据该切换响应消息，将源波束覆盖范围内的终端设备迁移到该目标波束的覆盖范围。
例如，在针对终端设备33的切换过程中，当卫星32确定出目标波束后，可以向卫星31发送切换响应消息，该切换响应消息包括该目标波束的信息。相应的，卫星31可以接收卫星32反馈的切换响应消息。当卫星31接收到卫星32反馈的切换响应消息后，可以根据该切换响应消息，向终端设备33发送切换重配消息。该切换重配消息携带该目标波束的信息，从而使得终端设备33可以根据该目标波束的信息，搜索该目标波束并接入到该目标波束。然后卫星31向卫星32发送切换完成消息，从而完成终端设备33从卫星31的源波束切换到卫星32的目标波束的过程。
同理，在针对终端设备34的切换过程中，当卫星32确定出目标波束后，可以向卫星31发送切换响应消息，该切换响应消息包括该目标波束的信息。相应的，卫星31可以接收卫星32反馈的切换响应消息。当卫星31接收到卫星32反馈的切换响应消息后，可以根据该切换响应消息，向终端设备34发送切换重配消息。该切换重配消息携带该目标波束的信息，从而使得终端设备34可以根据该目标波束的信息，搜索该目标波束并接入到该目标波束。然后卫星31向卫星32发送切换完成消息，从而完成终端设备34从卫星31的源波束切换到卫星32的目标波束的过程。
本实施例通过源网络设备针对源波束覆盖范围内的每个终端设备，向目标网络设备发送携带源波束中心点位置信息的切换请求消息，使得目标网络设备根据源波束中心点位置信息，确定目标波束。由于目标网络设备每次接收到的切换请求消息均携带相同的源波束中心点位置信息，因此目标网络设备每次根据同一源波束中心点位置信息确定的目标波束是相对固定的，从而使得目标网络设备针对源波束覆盖范围内的不同终端设备确定的目标波束是相同的。也就是说，即使源波束覆盖范围内多个终端设备之间的距离较远，例如大于波束覆盖的半径，但是，由于目标网络设备为每个终端设备确定的同一目标波束的中心与源波束的中心尽可能接近，即该目标波束的覆盖范围与源波束的覆盖范围尽可能重叠，从而使得该目标波束尽可能的覆盖到源波束覆盖范围内的全部终端设备。因此，目标网络设备为每个终端设备确定的同一目标波束足以容纳源波束覆盖范围内的全部终端设备，目标网络设备不需要为不同的终端设备创建不同的目标波束，因此节约了波束资源。
可选的，根据该源波束中心点位置信息，确定目标波束，包括图6所示的如下步骤：
步骤600、目标网络设备判断是否是第一次接收到包括该源波束中心点位置信息的切换请求消息。是则执行S601，否则执行S604。
步骤601、根据该源波束中心点位置信息，目标网络设备确定该目标网络设备中是否已存在第一波束，该第一波束的中心与该源波束的中心之间的距离小于或等于预设阈值。在一些实施例中，该第一波束的中心还可以与该源波束的中心相等。若存在，则执行步骤602，否则，执行步骤603。
步骤602、将该第一波束确定为该目标波束。
步骤603、创建第二波束，该第二波束的中心与该源波束的中心之间的距离小于或等于预设阈值；在一些实施例中，该第二波束的中心还可以与该源波束的中心相等。将该第二波束确定为该目标波束。
例如，图3所示的终端设备33是源波束覆盖范围内第一个进行迁移或切换的终端设备；终端设备34是源波束覆盖范围内第二个进行迁移或切换的终端设备。在针对终端设备33的切换过程中，卫星31向目标卫星例如卫星32发送的切换请求消息是针对源波束覆盖范围内第一个终端设备的切换请求消息，即该切换请求消息是第一个携带源波束中心点位置信息的切换请求消息。此时，卫星32可以根据源波束中心点位置信息查找卫星32中是否有已存在的波束，且已存在的波束的中心与源波束的中心相等，即从卫星32已存在的所有波束中匹配出与源波束的中心相等的已存在的波束。如果存在，则卫星32将该已存在的波束(记为第一波束)作为目标波束。如果不存在，则卫星32创建新的波束，使得新创建的波束的中心与源波束的中心相等，并将该新创建的波束(记为第二波束)作为目标波束。
步骤604、基于所述目标网络设备不是第一次接收所述切换请求消息，确定所述目标波束为当所述目标网络设备第一次接收所述切换请求消息时确定的目标波束。
在针对终端设备34的切换过程中，卫星31向目标卫星例如卫星32发送的切换请求消息不是卫星32第一次接收的切换请求消息。此时，卫星32可以将终端设备33切换时确定的目标波束作为终端设备34对应的目标波束，即终端设备34对应的目标波束是终端设备33迁移后的目标波束。
本实施例通过目标网络设备针对源波束覆盖范围内第一个进行迁移或切换的终端设备，查找已存在的波束或创建新的波束。针对该源波束覆盖范围内后续进行迁移或切换的终端设备，直接使用第一次查找到的已存在的波束或第一次创建的新波束，使得波束间批量切换终端设备时，最多只需匹配或创建一个目标波束。上述方法可以减少了目标网络设备匹配或创建波束的个数，提高了波束间批量切换效率，提高了波束资源使用效率。
图7为本公开实施例提供的波束间批量切换的整体流程图。假设有2个终端设备(User Equipment，UE)需要切换，且2个UE之间的距离大于波束服务半径R。如图7所示，该整体流程包括如下步骤：
步骤1.由于卫星移动、干扰规避等场景触发波束间批量切换。
例如，由于干扰规避、卫星移动、某波束规划时间结束、小区节能去激活等因素触发的波束间(小区间)批量用户切换，即需要将波束1(Beam1)中的所有UE全部迁移走。具体的，图7所示的UE1和UE2均是波束1中的UE。
步骤2.源卫星1根据源波束中心点位置信息选择目标卫星。
例如源卫星1先执行UE1的切换，即UE1是源波束覆盖范围内第一个进行迁移或切换的终端设备，记为第一个终端设备。图7所示的步骤2-步骤7是UE1的切换过程。在步骤2中，源卫星1根据源波束中心点位置信息，选择目标卫星，具体的选择方法如上所述，此处不再赘述。
步骤3.源卫星1向目标卫星2的公共处理模块发送切换请求消息，该切换请求消息携带源波束中心点位置信息。
步骤4.目标卫星2的公共处理模块根据源波束中心点位置判断是否存在波束，不存在则创建新波束。
例如，当目标卫星2的公共处理模块接收到该切换请求消息时，由于该切换请求消息中携带的是源波束中心点位置信息，而不是单个终端设备的位置信息，因此，目标卫星2的公共处理模块将该切换请求消息识别为批量切换。另外，由于目标卫星2的公共处理模块是第一次接收到携带有源波束中心点位置信息的切换请求消息，因此，目标卫星2确定本次切换是针对源波束覆盖范围内第一个终端设备进行的切换。此时，目标卫星2根据源波束中心点位置，查找目标卫星2中是否有已存在的波束，且已存在的波束的中心与源波束的中心之间的距离小于或等于预设阈值，即从目标卫星2已存在的所有波束中匹配出与源波束的中心距离小于或等于预设阈值的已存在的波束。在一些实施例中，所述已存在的波束与源波束的中心相等。如果存在，则目标卫星2将该已存在的波束作为目标波束。如果不存在，则目标卫星2创建新的波束，使得新创建的波束的中心与源波束的中心之间的距离小于或等于预设阈值，并将该新创建的波束作为目标波束。在一些实施例中，所述新创建的波束与源波束的中心相等。假设此处不存在已有波束，则目标卫星2以源波束中心点位置为中心点新创建的波束作为目标波束。
步骤5.目标卫星2向源卫星1发送切换响应消息，该切换响应消息携带目标波束信息。
步骤6.源卫星1向UE1发送切换重配消息，该切换重配消息携带目标波束信息。
步骤7.UE1向目标卫星2发送切换完成消息。
例如UE1根据目标波束信息搜索目标波束并接入到目标波束，并向目标卫星2发送切换完成消息。
步骤8.源卫星1直接使用UE1切换过程选择的目标卫星作为UE2的目标卫星。
例如源卫星1执行完UE1的切换后，执行UE2的切换，图7所示的步骤8-步骤13是UE2的切换过程。在步骤8中，源卫星1直接使用UE1切换过程选择的目标卫星作为UE2的目标卫星。
步骤9.源卫星1向目标卫星2的公共处理模块发送切换请求消息，该切换请求消息携带源波束中心点位置信息。
步骤10.目标卫星2直接使用UE1切换过程确定的目标波束。
例如，当目标卫星2的公共处理模块接收到该切换请求消息时，由于该切换请求消息中携带的是源波束中心点位置信息，而不是单个终端设备的位置信息，因此，目标卫星2的公共处理模块将该切换请求消息识别为批量切换。另外，由于目标卫星2的公共处理模块已经不是第一次接收到携带有源波束中心点位置信息的切换请求消息，因此，目标卫星2确定本次切换是针对源波束覆盖范围内后续终端设备进行的切换。根据源波束中心点位置判断此位置已经存在目标波束，即UE1切换过程选择或创建的波束，因此，直接选择目标波束即可。
步骤11.目标卫星2向源卫星1发送切换响应消息，该切换响应消息携带目标波束信息。
步骤12.源卫星1向UE2发送切换重配消息，该切换重配消息携带目标波束信息。
步骤13.UE2向目标卫星2发送切换完成消息。
例如，UE2根据目标波束信息搜索目标波束并接入到目标波束，并向目标卫星2发送切换完成消息。
图8所示为本实施例提供的批量切换平面位置示例图，例如图8中的卫星1记为源卫星，卫星2记为目标卫星。卫星1的覆盖区域也叫卫星1的覆盖范围，卫星2的覆盖区域也叫卫星2的覆盖范围，波束服务半径即波束半径记为R，UE1和UE2之间的距离大于波束服务半径R。在批量切换之前，UE1和UE2位于卫星1的Beam1中，切换过程中，目标卫星为UE1创建Beam2，Beam2的中心是源波束Beam1的中心，即两者位置相同。然后，UE1接入Beam2。目标卫星为UE2直接选择Beam2。然后，UE2也接入Beam2，从而完成Beam1中所有UE的全部迁移。
通过图7和图8可知，如果源波束例如Beam1覆盖范围内的UE的个数不限于2个，即不限于UE1和UE2，而是还包括更多的UE，即使多个UE之间的距离较远，例如，多个UE之间的距离大于波束覆盖的半径，目标网络设备例如目标卫星创建一个新的波束即可覆盖到源波束中的所有UE。上述方案不需要创建多个新的波束，从而节省了波束资源。
如上所示的Beam1、Beam2、Beam3等波束具体是指服务波束，即卫星通信组网中专门用于UE做业务的波束。波束的覆盖范围小，只针对特定范围的区域服务，每个卫星可发射的波束个数有限。
在本实施例中，服务波束的大小能够完整覆盖网格区域，并且网格和服务波束一一匹配，中心点重合。所谓的网格是指地球表面以经度和纬度以一定的颗粒度规则切割成的有规律的格子。每个格子都可以有一个编号，即网格ID(Grid ID)。
如图9所示，卫星1记为源卫星，卫星2记为目标卫星。卫星1的覆盖区域可以包括多个网格，卫星2覆盖区域也可以包括多个网格。每个网格是以经度和纬度以一定的颗粒度规则切割成有规律的格子，每个网格对应有各自的ID。假设Beam1是卫星1的一个波束，该波束的覆盖范围正好是一个网格的大小，即该波束的中心点与该网格的中心点相等。假设该网格的ID记为ID1。Beam1的覆盖范围内包括UE1和UE2。
在上述实施例中，源网络设备每次发送的切换请求消息中均携带源波束中心点位置信息。在本实施例中，源波束中心点位置信息有如下两种表达方式。一种表达方式是用该源波束中心对应的网格ID来表达源波束中心点位置信息。例如，图9所示的Beam1是源波束，由于源波束的覆盖范围正好是一个网格的大小，该网格的中心点与源波束的中心点相等，因此，可以用该网格的中心点来代替源波束的中心点。另外，由于每个网格对应一个ID，且一个网格ID对应该网格中心的位置信息，因此图9所示的网格ID1可用于表达源波束中心点位置信息。另一种表达方式是用源波束中心点的经度、维度和高度表达源波束中心点位置信息。在具体应用场景中，采用如上所示的任一种方式表达源波束中心点位置信息即可。在批量切换时，如图10所示，源卫星1通过切换请求消息将源波束中心点位置信息传递给目标卫星2，使得目标卫星2可以查找或创建更优的波束资源。相比于现有技术中的切换请求消息只能携带UE级别的位置信息，本实施例通过切换请求消息携带源波束中心点位置信息，可供目标侧后续查找或创建更优波束资源。
如图11所示，本实施例在执行第一个UE的切换时，根据源波束中心点位置计算筛选目标卫星或目标小区。在执行后续UE切换时，直接使用第一个UE切换过程中选择的结果作为目标卫星或目标小区。相比于现有技术中当波束间批量切换时源侧即源网络设备侧在每个UE切换时都会根据UE的位置信息计算筛选目标卫星或目标小区，本实施例的源侧只在第一个UE切换过程中，根据源波束中心点位置信息计算筛选目标卫星或目标小区，在后续UE的切换过程中，均不需要再计算筛选，而是直接使用第一个UE切换过程中选择的目标卫星或目标小区，从而减少了源侧的计算量。
如图12所示，源波束触发波束间批量切换时，每个UE的切换请求消息中都携带源波束中心点位置信息，而不携带UE级别的位置信息。如果不是波束间批量切换，而是UE移动到波束边界触发的自己单独切换，则切换请求消息不携带源波束中心点位置信息，而携带UE级别的位置信息。例如，UE1和UE2的切换属于波束间批量切换，UE3的切换属于单独切换。针对UE1和UE2的切换请求消息携带源波束中心点位置信息，目标侧即目标网络设备(例如目标卫星2)可根据源波束中心点位置信息，识别为批量切换。针对UE3的切换请求消息携带UE级别的位置信息，目标卫星2可根据UE级别的位置信息，识别为单独切换。因此，本实施例通过切换请求消息携带源波束中心点位置信息，可使得目标侧能够精准的区分出某个UE的切换是波束间批量切换，还是单独切换。
如图13所示，目标侧接收到切换请求消息时，如果确定该切换请求消息携带了源波束中心点位置信息，则认为是波束间批量切换。如果该切换请求消息是目标侧第一次接收到的携带源波束中心点位置信息(例如位置X)的切换请求消息，则目标侧根据源波束中心点位置查找是否存在相同中心点的波束。若目标侧找到满足条件的已存在波束，则将该已存在波束作为目标波束，使得终端设备接入该已存在波束。否则，目标侧以源波束中心点位置为中心点创建新波束，将新波束作为目标波束，使得终端设备接入该新波束。如果该切换请求消息不是目标侧第一次接收到的携带源波束中心点位置信息(例如位置X)的切换请求消息，则目标侧直接使用前面切换过程已经选择的波束或新创建的波束作为目标波束。相比于现有技术中批量切换时目标侧每次收到切换请求消息时都会根据UE级别的位置信息查找是否存在已有波束可以覆盖此UE的复杂计算判断过程，本实施例在批量切换时，只需要判断第一个UE切换过程中切换请求消息携带的源波束中心点位置信息和已存在的波束中心点位置信息是否相同，不需要复杂计算，判断简单；如果没找到相同中心位置的波束，则以源波束中心位置为中心创建新波束作为目标波束，且针对后续切换的UE不再需要查找判断或创建波束，直接使用先前切换过程确定的目标波束。本实施例所提供的方法可以减少波束资源的分配占用，提高波束资源利用率，同时减少了目标侧计算工作量，降低处理负荷。
可以理解的是，图10-图13只是抽取了图7所示的部分步骤，以进一步说明该部分步骤对现有技术的改进和技术效果的实现。
本实施例所示的方法，在5G扩展、6G NTN组网如卫星组网、星地融合组网等卫星通信的组网场景中，通过在切换请求消息中携带源波束中心点位置信息，可支持目标侧根据不同场景灵活处理。本实施例所示的方法通过源侧只在第一个UE切换时计算筛选一次目标卫星或目标小区以及在后续切换过程中可以直接使用第一次切换筛选的结果，从而减少计算资源消耗，降低卫星处理负荷。通过判断某切换UE是批量切换的用户还是单独切换的用户，可以方便目标侧选择不同的处理策略。本实施例所示的方法通过目标侧只需要根据第一个切换UE携带源波束中心位置查找是否有已存在波束作为目标波束，在后续批量切换用户时不需要再计算查找，直接使用先前切换过程查找结果，从而减少目标侧计算资源消耗，减少切换过程耗时。如果第一个切换UE没找到已存在匹配波束，则目标侧根据携带源波束中心位置创建新波束作为目标波束，在后续批量切换用户时不需要再计算查找匹配波束，也不需要创建新波束，而是直接使用先前切换过程创建的波束，从而减少目标侧计算资源消耗，减少切换过程耗时，减少创建波束个数，提高波束资源分配和利用率。
图14为本公开实施例提供的波束间批量切换装置的结构示意图。本公开实施例提供的波束间批量切换装置可以执行波束间批量切换方法实施例提供的处理流程。该波束间批量切换装置可以设置于源网络设备中，或者该波束间批量切换装置可以是源网络设备中的部件或组件，或者该波束间批量切换装置可以是源网络设备。如图14所示，波束间批量切换装置140包括：
发送模块141，用于当源波束覆盖范围内的多个终端设备需要迁移时，针对每个终端设备，向目标网络设备发送切换请求消息。所述切换请求消息包括源波束中心点位置信息。所述目标网络设备用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值。
接收模块142，用于接收所述目标网络设备反馈的切换响应消息，所述切换响应消息包括所述目标波束的信息；
迁移模块143，用于根据所述切换响应消息，将所述终端设备迁移到所述目标波束的覆盖范围。
可选的，波束间批量切换装置140还包括：确定模块144，用于在针对每个终端设备，向所述目标网络设备发送切换请求消息之前，基于所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备，根据所述源波束中心点位置信息，确定所述目标网络设备；基于所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备，将所述第一个终端设备对应的所述目标网络设备确定为所述目标网络设备。
可选的，所述目标波束的中心与所述源波束的中心相等。
可选的，当所述切换请求消息是所述目标网络第一次接收到的切换请求消息时，所述目标波束是所述目标网络设备中已存在的波束，或者所述目标波束是所述目标网络设备新创建的波束，所述已存在的波束的中心和所述新创建的波束的中心与所述源波束的中心之间的距离小于等于预设阈值。在一些实施例中，所述已存在的波束的中心和所述新创建的波束的中心与所述源波束的中心相等。
可选的，当所述切换请求消息不是所述目标网络第一次接收到的切换请求消息时，所述目标波束是所述第一个终端设备迁移后的目标波束。
图14所示实施例的波束间批量切换装置可用于执行上述源网络设备侧方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图15为本公开实施例提供的波束间批量切换装置的结构示意图。本公开实施例提供的波束间批量切换装置可以执行波束间批量切换方法实施例提供的处理流程。该波束间批量切换装置可以设置于目标网络设备中，或者该波束间批量切换装置可以是目标网络设备中的部件或组件，或者该波束间批量切换装置可以是目标网络设备。如图15所示，波束间批量切换装置150包括：
接收模块151，用于接收源网络设备发送的切换请求消息，所述切换请求消息包括源波束中心点位置信息；
确定模块152，用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
发送模块153，用于向所述源网络设备发送切换响应消息，所述切换响应消息包括所述目标波束的信息，所述源网络设备用于根据所述切换响应消息，将源波束覆盖范围内的终端设备迁移到所述目标波束的覆盖范围。
可选的，所述目标波束的中心与所述源波束的中心相等。
可选的，确定模块152根据所述源波束中心点位置信息，确定目标波束时，具体用于：若接收模块151第一次接收到包括所述源波束中心点位置信息的切换请求消息，则根据所述源波束中心点位置信息，确定所述目标网络设备中是否已存在第一波束；若存在所述第一波束，则将所述第一波束确定为所述目标波束。其中，所述第一波束的中心与所述源波束的中心之间的距离小于等于预设阈值。在一些实施例中，所述第一波束的中心与所述源波束的中心相等。
可选的，确定模块152还用于：若不存在所述第一波束，则创建第二波束；将所述第二波束确定为所述目标波束。其中，所述第二波束的中心与所述源波束的中心之间的距离小于等于预设阈值。在一些实施例中，所述第二波束的中心与所述源波束的中心相等。
可选的，确定模块152根据所述源波束中心点位置信息，确定目标波束时， 具体用于：若接收模块151并非第一次接收到包括所述源波束中心点位置信息的切换请求消息，则将当所述目标网络设备第一次接收到的所述切换请求消息时确定的目标波束作为响应于所述目标波束。
图15所示实施例的波束间批量切换装置可用于执行上述目标网络设备侧方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
该集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例方法的全部或部分步骤。
在此需要说明的是，本发明实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另外，本公开实施例还提供一种源网络设备，如图16所示，源网络设备包括处理器160、收发机161、存储器162。其中，存储器162中存储有计算机程序，计算机程序被配置为由处理器162执行如上源网络设备侧的方法步骤。
收发机161，用于在处理器160的控制下接收和发送数据。
其中，在图16中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机161可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器负责管理总线架构和通常的处理，存储器162可以存储处理器160在执行操作时所使用的数据。
处理器160可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
另外，本公开实施例还提供一种目标网络设备，如图17所示，目标网络设备包括处理器170、收发机171、存储器172。其中，存储器172中存储有计算机程序，计算机程序被配置为由处理器172执行如上目标网络设备侧的方法步骤。
收发机171，用于在处理器170的控制下接收和发送数据。
其中，在图17中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机171可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器负责管理总线架构和通常的处理，存储器172可以存储处理器170在执行操作时所使用的数据。
处理器170可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
在此需要说明的是，本发明实施例提供的上述设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另外，本公开实施例还提供一种处理器可读存储介质，该处理器可读存储介质存储有程序，该程序用于使该处理器执行上述实施例的源网络设备执行的波束间批量切换方法。
此外，本公开实施例还提供一种处理器可读存储介质，该处理器可读存储介质存储有程序，该程序用于使该处理器执行上述实施例的目标网络设备执行的波束间批量切换方法。
该处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (24)

  1. 一种波束间批量切换方法，应用于源网络设备，其特征在于，所述方法包括：
    当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，所述切换请求消息包括源波束中心点位置信息；所述目标网络设备用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    接收所述目标网络设备反馈的切换响应消息，所述切换响应消息包括所述目标波束的信息；
    根据所述切换响应消息，将所述终端设备迁移到所述目标波束的覆盖范围。
  2. 根据权利要求1所述的方法，其特征在于，针对每个所述终端设备，向所述目标网络设备发送切换请求消息之前，所述方法还包括：
    基于所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备，根据所述源波束中心点位置信息，确定所述目标网络设备；
    基于所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备，将所述第一个终端设备对应的目标网络设备确定为所述目标网络设备。
  3. 根据权利要求1所述的方法，其特征在于，所述目标波束的中心与所述源波束的中心相等。
  4. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    当所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述目标网络设备中已存在的波束或者所述目标网络设备新创建的波束。
  5. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    当所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述第一个终端设备迁移后的目标波束。
  6. 一种波束间批量切换方法，其特征在于，应用于目标网络设备，所述方法包括：
    接收源网络设备发送的切换请求消息，所述切换请求消息包括源波束中心点位置信息；
    根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    向所述源网络设备发送切换响应消息，所述切换响应消息包括所述目标波束的信息，所述源网络设备用于根据所述切换响应消息，将源波束覆盖范围内的终端设备迁移到所述目标波束的覆盖范围。
  7. 根据权利要求6所述的方法，其特征在于，所述目标波束的中心与所述源波束的中心相等。
  8. 根据权利要求6所述的方法，其特征在于，根据所述源波束中心点位置信息，确定目标波束，包括：
    基于所述切换请求消息是第一次接收，根据所述源波束中心点位置信息，确定所述目标网络设备中是否已存在第一波束，所述第一波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    若所述目标网络设备中存在所述第一波束，将所述第一波束确定为所述目标波束。
  9. 根据权利要求8所述的方法，其特征在于，还包括：
    若所述目标网络设备中不存在所述第一波束，创建第二波束，所述第二波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    将所述第二波束确定为所述目标波束。
  10. 根据权利要求6所述的方法，其特征在于，根据所述源波束中心点位置信息，确定目标波束，包括：
    基于所述切换请求消息不是第一次接收，确定所述目标波束为当所述切换请求信息是第一次接收时确定的目标波束。
  11. 一种波束间批量切换装置，其特征在于，包括：
    发送模块，用于当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，所述切换请求消息包括源波束中心点位置信息；所述目标网络设备用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    接收模块，用于接收所述目标网络设备反馈的切换响应消息，所述切换响应消息包括所述目标波束的信息；
    迁移模块，用于根据所述切换响应消息，将所述终端设备迁移到所述目标波束的覆盖范围。
  12. 一种波束间批量切换装置，其特征在于，包括：
    接收模块，用于接收源网络设备发送的切换请求消息，所述切换请求消息包括源波束中心点位置信息；
    确定模块，用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    发送模块，用于向所述源网络设备发送切换响应消息，所述切换响应消息包括所述目标波束的信息，所述源网络设备用于根据所述切换响应消息，将源波束覆盖范围内的终端设备迁移到所述目标波束的覆盖范围。
  13. 一种源网络设备，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；
    收发机，用于在所述处理器的控制下收发数据；
    处理器，用于读取所述存储器中的计算机程序并执行：
    当源波束覆盖范围内的多个终端设备迁移时，针对每个终端设备，向目标网络设备发送切换请求消息，所述切换请求消息包括源波束中心点位置信息；所述目标网络设备用于根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    接收所述目标网络设备反馈的切换响应消息，所述切换响应消息包括所述目标波束的信息；
    根据所述切换响应消息，将所述终端设备迁移到所述目标波束的覆盖范围。
  14. 根据权利要求13所述的源网络设备，其特征在于，所述处理器还用于：
    基于所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备，根据所述源波束中心点位置信息，确定所述目标网络设备；
    基于所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备，将所述第一个终端设备对应的目标网络设备确定为所述目标网络设备。
  15. 根据权利要求13所述的源网络设备，其特征在于，所述目标波束的中心与所述源波束的中心相等。
  16. 根据权利要求13所述的源网络设备，其特征在于，当所述终端设备是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述目标网络设备中已存在的波束或者所述目标网络设备新创建的波束。
  17. 根据权利要求13所述的源网络设备，其特征在于，当所述终端设备不是所述源波束覆盖范围内迁移的第一个终端设备时，所述目标波束是所述第一个终端设备迁移后的目标波束。
  18. 一种目标网络设备，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；
    收发机，用于在所述处理器的控制下收发数据；
    处理器，用于读取所述存储器中的计算机程序并执行：
    接收源网络设备发送的切换请求消息，所述切换请求消息包括源波束中心点位置信息；
    根据所述源波束中心点位置信息，确定目标波束，所述目标波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    向所述源网络设备发送切换响应消息，所述切换响应消息包括所述目标波束的信息，所述源网络设备用于根据所述切换响应消息，将源波束覆盖范围内的终端设备迁移到所述目标波束的覆盖范围。
  19. 根据权利要求18所述的目标网络设备，其特征在于，所述目标波束的中心与所述源波束的中心相等。
  20. 根据权利要求18所述的目标网络设备，其特征在于，所述处理器用于：
    基于所述切换请求消息是第一次接收，根据所述源波束中心点位置信息，确定所述目标网络设备中是否已存在第一波束，所述第一波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    若所述目标网络设备中存在所述第一波束，将所述第一波束确定为所述目标波束。
  21. 根据权利要求20所述的目标网络设备，其特征在于，所述处理器还用于：
    若所述目标网络设备中不存在所述第一波束，创建第二波束，所述第二波束的中心与所述源波束的中心之间的距离小于或等于预设阈值；
    将所述第二波束确定为所述目标波束。
  22. 根据权利要求18所述的目标网络设备，其特征在于，所述处理器根据所述源波束中心点位置信息，确定目标波束时，用于：
    基于所述切换请求消息不是第一次接收，确定所述目标波束为当所述切换请求信息是第一次接收时确定的目标波束。
  23. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有程序，所述程序用于使所述处理器执行权利要求1至5任一项所述的方法。
  24. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有程序，所述程序用于使所述处理器执行权利要求6至10任一项所述的方法。
PCT/CN2024/131332 2023-11-17 2024-11-11 波束间批量切换方法、装置、设备及存储介质 Pending WO2025103271A1 (zh)

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