WO2025209149A1 - Procédé de communication et appareil associé - Google Patents

Procédé de communication et appareil associé

Info

Publication number
WO2025209149A1
WO2025209149A1 PCT/CN2025/082473 CN2025082473W WO2025209149A1 WO 2025209149 A1 WO2025209149 A1 WO 2025209149A1 CN 2025082473 W CN2025082473 W CN 2025082473W WO 2025209149 A1 WO2025209149 A1 WO 2025209149A1
Authority
WO
WIPO (PCT)
Prior art keywords
access network
network device
cco
coverage
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/082473
Other languages
English (en)
Chinese (zh)
Inventor
程雯洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025209149A1 publication Critical patent/WO2025209149A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/22—Traffic simulation tools or models
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present application relates to the field of communication technology, and in particular to a communication method and related devices.
  • Network coverage is a key measure of network quality.
  • 3GPP 3rd Generation Partnership Project
  • CCO coverage and capacity optimization
  • current standards typically require each base station to make these adjustments only after coverage issues arise, impacting network performance.
  • the present application provides a communication method, which can be applied to the network side, such as an access network device on the network side or a component in the access network device (such as a circuit, a chip or a chip system, etc.).
  • the first access network device obtains the coverage and capacity performance information associated with the second access network device, and then the first access network device sends a first message to the second access network device.
  • the first message includes the predicted coverage and capacity optimization CCO adjustment information of the first access network device and/or the second access network device.
  • the above CCO adjustment information is related to the coverage and capacity performance information associated with the second access network device, that is, the coverage and capacity performance information associated with the second access network device is used to predict the CCO adjustment information of the first access network device and/or the second access network device.
  • the first access network device by collecting the coverage and capacity performance information associated with the neighboring station (i.e., the second access network device), it helps the station (i.e., the first access network device) to understand the resources and coverage/capacity of the neighboring station, and thus helps to make accurate predictions of CCO problems and solutions.
  • the first access network device can also obtain its own associated coverage and capacity performance information, and predict the CCO adjustment information of the first access network device and/or the second access network device based on the obtained coverage and capacity performance information associated with the second access network device and the coverage and capacity performance information associated with the first access network device, so as to more accurately predict the CCO problem and the corresponding solution strategy.
  • the first access network device and/or the second access network device can proactively adjust its own coverage configuration based on the CCO adjustment information before the coverage problem occurs, so as to avoid the occurrence of coverage problems as early as possible, thereby helping to improve the overall performance of the network.
  • a first response is received from the second access network device, where the first response includes coverage and capacity performance information associated with the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes the coverage and capacity performance information actually corresponding to the second access network device (or called the coverage and capacity performance information measured by the second access network device), and/or the coverage and capacity performance information predicted by the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes one or more of the following:
  • Average performance information of terminals associated with the second access network device or resource status information of a cell edge.
  • the average performance information of the terminal associated with the second access network device includes one or more of the following:
  • the average performance of terminals under the second access network device the average performance of terminals under the cell of the second access network device, the average performance of terminals under the synchronization signal block SSB of the cell, the average performance of terminals at the edge of the cell, or the average performance of terminals under the slice.
  • Radio resource status number of radio resource control (RRC) connections, number of active terminals, composite available capacity, or slice identifier.
  • RRC radio resource control
  • Predicted CCO problem predicted time of occurrence of the CCO problem, predicted coverage status, predicted time of change of the coverage status, predicted CCO plan corresponding to the CCO problem, predicted execution time of the CCO plan, and predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or the change of coverage status.
  • the first access network device and/or the second access network device can adjust their own coverage configuration accordingly, thereby facilitating improvement of communication performance.
  • the first switching strategy includes one or more of the following information:
  • the CCO plan includes a predicted handover threshold value or a predicted handover threshold change value.
  • the method further includes:
  • a second message is received from the second access network device, where the second message includes a CCO plan accepted by the second access network device and one or more of the coverage status adjusted by the second access network device.
  • the CCO plan accepted by the second access network device includes a second switching strategy accepted by the second access network device for switching the terminal from the first access network device to the second access network device.
  • the second switching strategy includes one or more of the following information:
  • the number of terminals that the second access network device accepts switching the number of terminals that the second access network device does not accept switching, the identification/list of terminals that the second access network device accepts switching, the identification/list of terminals that the second access network device does not accept switching, the time when switching is allowed, the reason for acceptance, or the reason for non-acceptance.
  • the CCO plan received by the second access network device includes one or more of the following information:
  • the second access network device accepts an indication of a handover threshold modification, accepts/allows a range of handover threshold values, or accepts/allows a range of handover threshold change values.
  • the method further includes:
  • the average performance includes one or more of the following:
  • the coverage and capacity performance information associated with the second access network device is used to predict CCO adjustment information of the first access network device and/or the second access network device.
  • the present application provides a communication method, which can be applied to the network side, such as an access network device on the network side or a component in the access network device (such as a circuit, a chip or a chip system, etc.).
  • the second access network device sends the coverage and capacity performance information associated with the second access network device to the first access network device.
  • the second access network device receives a first message from the first access network device.
  • the first message includes the predicted coverage and capacity optimization CCO adjustment information of the first access network device and/or the second access network device, and the above CCO adjustment information is related to the coverage and capacity performance information associated with the second access network device.
  • the sending, to the first access network device, coverage and capacity performance information associated with the second access network device includes:
  • a first response is sent to the first access network device, where the first response includes coverage and capacity performance information associated with the second access network device.
  • the first request includes first indication information, and the first indication information indicates that the first access network device expects the second access network device to feedback coverage and capacity performance information, and/or the first access network device expects the second access network device to feedback configuration information corresponding to the coverage and capacity performance information.
  • the coverage and capacity performance information associated with the second access network device includes coverage and capacity performance information actually corresponding to the second access network device, and/or coverage and capacity performance information predicted by the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes one or more of the following:
  • Average performance information of terminals associated with the second access network device or resource status information of a cell edge.
  • the average performance information of the terminal associated with the second access network device includes one or more of the following:
  • Radio resource status number of radio resource control (RRC) connections, number of active terminals, composite available capacity, or slice identifier.
  • RRC radio resource control
  • the predicted CCO adjustment information of the first access network device includes one or more of the following:
  • Predicted CCO problem predicted time of occurrence of the CCO problem, predicted coverage status, predicted time of change of the coverage status, predicted CCO plan corresponding to the CCO problem, predicted execution time of the CCO plan, and predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or the change of coverage status.
  • the CCO plan includes a first switching strategy recommended by the first access network device for the terminal to switch from the first access network device to the second access network device.
  • the first switching strategy includes one or more of the following information:
  • the CCO plan includes a predicted handover threshold value or a predicted handover threshold change value.
  • the method after receiving the first message from the first access network device, the method further includes:
  • a second message is sent to the first access network device, where the second message includes the CCO plan accepted by the second access network device and one or more of the coverage states adjusted by the second access network device.
  • the CCO plan accepted by the second access network device includes a second switching strategy accepted by the second access network device for switching the terminal from the first access network device to the second access network device.
  • the second switching strategy includes one or more of the following information:
  • the number of terminals that the second access network device accepts switching the number of terminals that the second access network device does not accept switching, the identifiers of terminals that the second access network device accepts switching, the identifiers of terminals that the second access network device does not accept switching, the time when switching is allowed, the reason for acceptance, or the reason for non-acceptance.
  • the CCO plan received by the second access network device includes one or more of the following information:
  • the second access network device accepts an indication of a handover threshold modification, accepts/allows a range of handover threshold values, or accepts/allows a range of handover threshold change values.
  • a second response is sent to the first access network device, where the second response includes CCO performance feedback information of the second access network device.
  • the second request includes a first identifier, where the first identifier is used to identify the second indication information
  • the method further includes:
  • a third request is received from the first access network device, where the third request is used to trigger the second access network device to send the CCO performance feedback information, and the third request includes the first identifier.
  • the CCO performance feedback information includes one or more of the following:
  • the CCO adjustment information is related to coverage and capacity performance information associated with the second access network device, including:
  • the coverage and capacity performance information associated with the second access network device is used to predict CCO adjustment information of the first access network device and/or the second access network device.
  • the method further includes:
  • Coverage adjustment is performed according to the predicted CCO adjustment information of the first access network device and/or the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes coverage and capacity performance information actually corresponding to the second access network device, and/or coverage and capacity performance information predicted by the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes one or more of the following:
  • Average performance information of terminals associated with the second access network device or resource status information of a cell edge.
  • the average performance information of the terminal associated with the second access network device includes one or more of the following:
  • the average performance of terminals under the second access network device the average performance of terminals under the cell of the second access network device, the average performance of terminals under the synchronization signal block SSB of the cell, the average performance of terminals at the edge of the cell, or the average performance of terminals under the slice.
  • the cell edge resource status information includes one or more of the following:
  • Radio resource status number of radio resource control (RRC) connections, number of active terminals, composite available capacity, or slice identifier.
  • RRC radio resource control
  • the predicted CCO adjustment information of the first access network device includes one or more of the following:
  • Predicted CCO problem predicted time of occurrence of the CCO problem, predicted coverage status, predicted time of change of the coverage status, predicted CCO plan corresponding to the CCO problem, predicted execution time of the CCO plan, and predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or the change of coverage status.
  • the CCO plan includes a first switching strategy recommended by the first access network device for the terminal to switch from the first access network device to the second access network device.
  • the first switching strategy includes one or more of the following information:
  • the CCO plan includes a predicted handover threshold value or a predicted handover threshold change value.
  • the communication module is further configured to:
  • a second message is received from the second access network device, where the second message includes a CCO plan accepted by the second access network device and one or more of the coverage status adjusted by the second access network device.
  • the CCO plan accepted by the second access network device includes a second switching strategy accepted by the second access network device for switching the terminal from the first access network device to the second access network device.
  • the second switching strategy includes one or more of the following information:
  • the number of terminals that the second access network device accepts switching the number of terminals that the second access network device does not accept switching, the identifiers of terminals that the second access network device accepts switching, the identifiers of terminals that the second access network device does not accept switching, the time when switching is allowed, the reason for acceptance, or the reason for non-acceptance.
  • the CCO plan received by the second access network device includes one or more of the following information:
  • the second access network device accepts an indication of a handover threshold modification, accepts/allows a range of handover threshold values, or accepts/allows a range of handover threshold change values.
  • a second response is received from the second access network device, where the second response includes CCO performance feedback information of the second access network device.
  • the second request includes second indication information, and the second indication information indicates that the first access network device expects the second access network device to feedback CCO performance feedback information, and/or the first access network device expects the second access network device to feedback configuration information corresponding to the CCO performance feedback information.
  • the second request includes a first identifier, where the first identifier is used to identify the second indication information
  • the communication module is further configured to:
  • the average performance includes one or more of the following:
  • Average access success rate average access delay, average call drop rate, average handover success rate, average user throughput, average user packet loss rate, average user delay, or average energy consumption.
  • the coverage and capacity performance information associated with the second access network device includes one or more of the following:
  • Predicted CCO problem predicted time of occurrence of the CCO problem, predicted coverage status, predicted time of change of the coverage status, predicted CCO plan corresponding to the CCO problem, predicted execution time of the CCO plan, and predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or the change of coverage status.
  • the number of terminals that the second access network device accepts switching the number of terminals that the second access network device does not accept switching, the identifiers of terminals that the second access network device accepts switching, the identifiers of terminals that the second access network device does not accept switching, the time when switching is allowed, the reason for acceptance, or the reason for non-acceptance.
  • the CCO plan received by the second access network device includes one or more of the following information:
  • the second access network device accepts an indication of a handover threshold modification, accepts/allows a range of handover threshold values, or accepts/allows a range of handover threshold change values.
  • the communication module is further configured to:
  • the second request includes second indication information, and the second indication information indicates that the first access network device expects the second access network device to feedback CCO performance feedback information, and/or the first access network device expects the second access network device to feedback configuration information corresponding to the CCO performance feedback information.
  • the second request includes a first identifier, where the first identifier is used to identify the second indication information
  • the communication module is further configured to:
  • a third request is received from the first access network device, where the third request is used to trigger the second access network device to send the CCO performance feedback information, and the third request includes the first identifier.
  • the CCO performance feedback information includes one or more of the following:
  • the average performance includes one or more of the following:
  • Average access success rate average access delay, average call drop rate, average handover success rate, average user throughput, average user packet loss rate, average user delay, or average energy consumption.
  • the performance of each terminal includes one or more of the following:
  • Measurement report radio link failure (RLF) report, random access channel (RACH) report, handover failure (HOF) report, connection establishment failure (CEF) report, access success rate, access delay, call drop rate, handover success rate, user throughput, user packet loss rate, user delay, or energy consumption.
  • RLF radio link failure
  • RACH random access channel
  • HAF handover failure
  • CEF connection establishment failure
  • the CCO adjustment information is related to coverage and capacity performance information associated with the second access network device, including:
  • the coverage and capacity performance information associated with the second access network device is used to predict CCO adjustment information of the first access network device and/or the second access network device.
  • the processing unit is configured to perform coverage adjustment according to predicted CCO adjustment information of the first access network device and/or the second access network device.
  • the present application provides a communication device, comprising a processor and a transceiver, wherein the processor and the transceiver are configured to execute any method of the first to second aspects, or any possible implementation of any of the aspects.
  • the communication device also includes a memory in which a computer program is stored; the above-mentioned processor and transceiver are used to call the computer program in the memory, so that the communication device executes any method in the first aspect to the second aspect, or a method shown in any possible implementation of any aspect therein.
  • the communication device may be a chip that implements the above method or a device including a chip.
  • the present application provides a communication device, which includes a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor being used to implement any method as described in any of the first to second aspects, or any possible implementation of any of the aspects, through a logic circuit or executing code instructions.
  • the present application provides a computer-readable storage medium, which stores a computer program or instruction.
  • the computer program or instruction When executed by a computer, it implements the method shown in any method in the first aspect to the second aspect, or any possible implementation of any aspect therein.
  • the present application provides a computer program product.
  • a computer reads and executes the computer program product, the computer executes any method in the first to second aspects, or a method shown in any possible implementation of any aspect.
  • the present application provides a chip system comprising at least one processor and an interface, the processor being used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes a method as described in any one of the first aspect or the second aspect, or a method as shown in any possible implementation of any one of the aspects.
  • the present application provides a communications system, which may include a first access network device and a second access network device.
  • the first access network device is configured to perform the method described in the first aspect or any possible implementation of the first aspect.
  • the second access network device is configured to perform the method described in the second aspect or any possible implementation of the second aspect.
  • FIG1 is a schematic structural diagram of a communication system applicable to the present application.
  • FIG2 is a schematic diagram of the CU-DU architecture provided in this application.
  • FIG3 is a schematic diagram of an AI application framework provided by this application.
  • 5A to 5D are schematic diagrams of several network architectures
  • FIG6 is a schematic diagram of the data collection and reporting startup process provided by this application.
  • FIG7 is another schematic diagram of the data collection and reporting startup process provided by this application.
  • FIG8 is a flow chart of a communication method provided in an embodiment of the present application.
  • FIG9 is another schematic flow chart of a communication method according to an embodiment of the present application.
  • FIG10 is a flow chart of a communication method based on the ORAN architecture provided in an embodiment of the present application.
  • FIG11 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application.
  • FIG12 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application.
  • the following at least one (item) involved in this application indicates one (item) or more (items). More than one (item) refers to two (items) or more than two (items).
  • "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character “/” generally indicates that the previous and next associated objects are in an "or” relationship.
  • first, second, etc. may be used to describe each object in this application, these objects should not be limited to these terms. These terms are only used to distinguish each object from each other.
  • the communication system can be a third generation (3G) communication system (such as a universal mobile telecommunication system (UMTS)), a fourth generation (4G) communication system (such as a long term evolution (LTE) system), a fifth generation ( 5G ) communication system, a world-wide interoperability for microwave access (WiMAX) or a wireless local area network (WLAN) system, or a fusion system of multiple systems, or a future communication system, such as a 6G communication system.
  • 3G third generation
  • UMTS universal mobile telecommunication system
  • 4G fourth generation
  • LTE long term evolution
  • 5G fifth generation
  • WiMAX world-wide interoperability for microwave access
  • WLAN wireless local area network
  • fusion system such as a 6G communication system
  • 6G communication system such as a 6G communication system.
  • the 5G communication system can also be called a new radio (NR) system.
  • NR new radio
  • a network element in a communication system can send a signal to another network element or receive a signal from another network element.
  • the signal may include information, signaling, or data, etc.
  • the network element can also be replaced by an entity, a network entity, a device, a communication device, a communication module, a node, a communication node, etc.
  • the network element is used as an example for description in this application.
  • the communication system may include at least one terminal device and at least one access network device.
  • the access network device can send a downlink signal to the terminal device, and/or the terminal device can send an uplink signal to the access network device.
  • the multiple terminal devices can also send signals to each other, that is, the signal sending network element and the signal receiving network element can both be terminal devices. If the communication system includes multiple access network devices, the multiple access network devices can also send signals to each other, that is, the signal sending network element and the signal receiving network element can both be access network devices.
  • the communication method provided in the embodiment of the present application can be applied to wireless communication systems such as 5G, 6G, and satellite communication.
  • the wireless communication system includes a wireless access network 100.
  • the wireless access network 100 can be a next-generation (e.g., 6G or higher) wireless access network, or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network.
  • One or more terminal devices 120a-120j, collectively referred to as 120
  • Figure 1 is only a schematic diagram, and the wireless communication system may also include other devices, such as core network devices, wireless relay devices, and/or wireless backhaul devices, which are not shown in Figure 1.
  • the wireless communication system may include multiple access network devices (also called network devices) and multiple terminal devices at the same time.
  • An access network device can serve one or more terminal devices at the same time.
  • a terminal device can also access one or more access network devices at the same time.
  • the embodiments of the present application do not limit the number of terminal devices and access network devices included in the wireless communication system.
  • the access network device may be an entity on the network side for transmitting or receiving signals.
  • the access network device may be an access device for a terminal device to access the wireless communication system in a wireless manner, such as a base station.
  • Base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), access network equipment in open radio access network (O-RAN), relay station, access point, transmitting point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), radio head (RRH), central unit (CU), distributed unit (DU), radio unit (RU), centralized unit control plane (CU-CP) node, centralized unit user plane (CU-UP) node, positioning node,
  • the base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • the access network device can also refer to a communication module, a modem or a chip that is provided in the aforementioned device or apparatus.
  • the access network device can also be a mobile switching center and a device to device (Device-to-Device, D2D), vehicle-to-everything (V2X), machine-to-machine (machine-to-machine, M2M) communication device that performs the base station function, a network side device in a 6G network, a device that performs the base station function in a future communication system, etc.
  • the access network device can support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device.
  • a terminal device (also referred to as a terminal) can be an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • Terminal devices can be used to connect people, objects, and machines.
  • Terminal devices can communicate with one or more core networks through access network devices.
  • Terminal devices include handheld devices with wireless connection capabilities, other processing devices connected to wireless modems, or vehicle-mounted devices.
  • Terminal devices can be portable, pocket-sized, handheld, built-in computer devices, or vehicle-mounted mobile devices.
  • the terminal device 120 can be widely used in various scenarios, such as cellular communications, device-to-device D2D, vehicle-to-everything V2X, end-to-end P2P, machine-to-machine M2M, machine type communications MTC, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, autonomous delivery and mobility, etc.
  • IoT Internet of Things
  • VR virtual reality
  • AR augmented reality
  • industrial control autonomous driving
  • telemedicine smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, autonomous delivery and mobility, etc.
  • terminal devices 120 include: 3GPP standard user equipment (UE), fixed devices, mobile devices, handheld devices, wearable devices, cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, personal computers, smart books, vehicles, satellites, Global Positioning System (GPS) devices, drones, helicopters, aircraft, ships, remote control devices, smart home devices, industrial equipment, personal communication service (PCS) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), wireless network cameras, tablet computers, handheld computers, mobile Internet devices
  • the terminal device 120 may include wireless devices such as mobile internet devices (MIDs), wearable devices such as smart watches, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, terminals in vehicle networking systems, wireless terminals in self-driving systems, wireless terminals in smart grids, wireless terminals in transportation safety systems, wireless terminals in smart cities such as smart gas pumps, terminal devices on high-speed trains, and wireless terminals in smart homes such as smart speakers, smart coffee machines, and smart
  • the terminal device 120 may be a wireless device in any of the above scenarios or a device used to be provided in a wireless device, such as a communication module, modem, or chip in the above devices.
  • the terminal device may also be referred to as a terminal, terminal device, user equipment (UE), mobile station (MS), or mobile terminal (MT).
  • the terminal device may also be a terminal device in a future wireless communication system.
  • the terminal device can be used in a dedicated network device or a general-purpose device. The embodiments of the present application do not limit the specific technology and specific device form used by the terminal device.
  • a terminal device can function as a base station.
  • a UE can act as a dispatching entity, providing sidelink signals between UEs in V2X, D2D, or P2P scenarios.
  • a cell phone 120a and a car 120b communicate with each other using sidelink signals.
  • Cell phone 120a and smart home device 120e communicate without relaying the communication signals through base station 110b.
  • the communication device used to implement the functions of the terminal device can be a terminal device, or a terminal device with some of the functions of the above terminal devices, or a device that can support the implementation of the functions of the above terminal devices, such as a chip system, which can be installed in the terminal device or used in combination with the terminal device.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • the communication device is described as a terminal device or UE as an example.
  • a wireless communication system is typically composed of cells, with base stations managing the cells and providing communication services to multiple mobile stations (MSs) within the cells.
  • a base station includes a baseband unit (BBU) and a remote radio unit (RRU).
  • BBU baseband unit
  • RRU remote radio unit
  • the BBU and RRU can be placed in different locations, for example, with the RRU being remotely located in a high-traffic area and the BBU being located in a central equipment room.
  • the BBU and RRU can be placed in the same equipment room.
  • the BBU and RRU can be separate components within the same rack.
  • a cell can correspond to a carrier or component carrier.
  • the present application can be applied to communications between access network devices and terminal devices, communications between access network devices and access network devices, or communications between terminal devices and terminal devices, or communications between other communication devices, such as communications between macro base stations and micro base stations in wireless backhaul links, and communications between two terminal devices in side links (SL), etc., without limitation.
  • the following text mainly uses the communication between the first access network device and the second access network device as an example for schematic explanation.
  • the functions of the packet data convergence protocol (PDCP) layer and above are located in the CU, while the functions of the protocol layers below the PDCP layer (such as the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical layer (PHY)) are located in the DU.
  • the CU-CP entity and the CU-UP entity are connected via the E1 interface.
  • the functions of the protocol layers above the PDCP layer are located in the CU, while the functions of the protocol layers below the PDCP layer are located in the DU.
  • the above division of the processing functions of CU and DU according to the protocol layer is only an example, and can also be divided in other ways, for example, the CU or DU can be divided into functions with more protocol layers, and for example, the CU or DU can also be divided into partial processing functions with the protocol layer.
  • some functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU.
  • the functions of the CU or DU can also be divided according to the service type or other system requirements, for example, by delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU.
  • the CU can also have one or more functions of the core network.
  • the CU can be set on the network side to facilitate centralized management.
  • the RU of the DU is set remotely. Among them, the RU has a radio frequency function.
  • the DU and RU can be divided in the PHY layer.
  • the DU can implement high-level functions in the PHY layer
  • the RU can implement low-level functions in the PHY layer.
  • the functions of the PHY layer may include adding cyclic redundancy check (CRC) codes, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, resource mapping, physical antenna mapping, and/or RF transmission functions.
  • the functions of the PHY layer may include CRC, channel decoding, rate matching, descrambling, demodulation, layer mapping, channel detection, resource demapping, physical antenna demapping, and/or RF reception functions.
  • the high-level functions in the PHY layer may include a portion of the functions of the PHY layer, such as a portion of the functions that is closer to the MAC layer, and the low-level functions in the PHY layer may include another portion of the functions of the PHY layer, such as a portion of the functions that is closer to the RF functions.
  • the high-level functions in the PHY layer may include adding CRC codes, channel coding, rate matching, scrambling, modulation, and layer mapping
  • the low-level functions in the PHY layer may include precoding, resource mapping, physical antenna mapping, and RF transmission functions
  • the high-level functions in the PHY layer may include adding CRC codes, channel coding, rate matching, scrambling, modulation, layer mapping, and precoding
  • the low-level functions in the PHY layer may include resource mapping, physical antenna mapping, and RF transmission functions.
  • the functions of the CU can be implemented by one entity, or by different entities.
  • the functions of the CU can be further divided, that is, the control plane and the user plane are separated and implemented by different entities, namely the control plane CU entity (i.e., CU-CP entity) and the user plane CU entity (i.e., CU-UP entity).
  • the CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network device.
  • signaling generated by the CU can be sent to the terminal device via the DU, and vice versa.
  • RRC or PDCP layer signaling is ultimately processed into physical layer signaling and sent to the terminal device, or converted from received physical layer signaling.
  • the RRC or PDCP layer signaling can be considered to be sent via the DU, or via the DU and RU.
  • any of the above-mentioned DU, CU, CU-CP, CU-UP, and RU can be a software module, a hardware structure, or a software module + hardware structure, without limitation.
  • the existence forms of different entities can be different and are not limited.
  • DU, CU, CU-CP, and CU-UP are software modules
  • RU is a hardware structure.
  • the number and type of each device in the communication system shown in Figure 1 are for illustration only, and the present application is not limited to this.
  • the communication system may also include more terminal devices, more access network devices, and other network elements, such as core network devices, and/or network elements for implementing artificial intelligence functions.
  • all or part of the functions implemented by one or more of the terminal devices, access network devices, core network devices, or network elements used to implement artificial intelligence functions can be virtualized, that is, implemented by one or more of the proprietary processors or general-purpose processors and the corresponding software modules.
  • the transceiver functions of the interfaces can be implemented by hardware.
  • Core network devices such as operation administration and maintenance (OAM) network elements, can be virtualized.
  • OAM operation administration and maintenance
  • one or more functions of the virtualized terminal devices, access network devices, core network devices, or network elements used to implement artificial intelligence functions can be implemented by cloud devices, such as cloud devices in over-the-top (OTT) systems.
  • cloud devices such as cloud devices in over-the-top (OTT) systems.
  • AI model is a concrete implementation of AI technology. It represents the mapping between the model's input and output.
  • AI models can be neural networks, linear regression models, decision tree models, support vector machines (SVMs), Bayesian networks, Q-learning models, or other machine learning (ML) models.
  • the training dataset is used to train the AI model.
  • the training dataset may include the input of the AI model, or the input and target output of the AI model.
  • the training dataset includes one or more training data.
  • the training data may be a training sample input to the AI model or the target output of the AI model.
  • the target output may also be referred to as a label or a label sample.
  • the training dataset is an important part of machine learning. Model training is essentially learning certain features from the training data so that the output of the AI model is as close as possible to the target output, such as the difference between the output of the AI model and the target output is as small as possible.
  • the composition and selection of the training dataset can, to a certain extent, determine the performance of the trained AI model.
  • a loss function can be defined during the training process of an AI model (such as a neural network).
  • the loss function describes the gap or difference between the output value of the AI model and the target output value. This application does not limit the specific form of the loss function.
  • the training process of the AI model is a process of adjusting the model parameters of the AI model so that the value of the loss function is less than the threshold, or the value of the loss function meets the target requirements.
  • the AI model is a neural network, and adjusting the model parameters of the neural network includes adjusting at least one of the following parameters: the number of layers, width, weights of neurons, or parameters in the activation function of neurons.
  • Inference data can be used as input to a trained AI model for inference.
  • the inference data is input into the AI model, and the corresponding output is the inference result.
  • the design of an AI model primarily includes a data collection phase (e.g., collecting training data and/or inference data), a model training phase, and a model inference phase. It can further include an inference result application phase.
  • Figure 3 illustrates an AI application framework.
  • a data source is used to provide training data sets and inference data.
  • an AI model is obtained by analyzing or training the training data provided by the data source.
  • the AI model represents the mapping relationship between the model's input and output. Learning an AI model through model training nodes is equivalent to learning the mapping relationship between the model's input and output using training data.
  • the AI model trained in the model training phase is used to perform inference based on the inference data provided by the data source to obtain an inference result.
  • This phase can also be understood as inputting inference data into the AI model and obtaining an output through the AI model, which is the inference result.
  • the inference result can indicate the configuration parameters used (executed) by the execution object and/or the operations performed by the execution object.
  • Inference results are published during the application phase.
  • inference results can be centrally planned by an actor entity.
  • the actor entity can send the inference results to one or more execution targets (e.g., core network equipment, access network equipment, or terminal devices) for execution.
  • the actor entity can provide feedback on model performance to the data source to facilitate subsequent model updates and training.
  • a communication system may include network elements with artificial intelligence capabilities.
  • the aforementioned AI model design-related steps can be performed by one or more network elements with AI capabilities.
  • AI capabilities (such as AI modules or AI entities) can be configured within existing network elements in the communication system to implement AI-related operations, such as AI model training and/or inference.
  • the existing network elements may be access network equipment (such as gNBs), terminal equipment, core network equipment, or network management (NM).
  • NMs can divide network management tasks into three categories based on the actual needs of the operator's network operations: operations, administration, and maintenance.
  • NMs are also referred to as operation, administration, and maintenance (OAM) network elements, or OAM for short.
  • Operations primarily perform routine network and service analysis, forecasting, planning, and configuration; maintenance primarily involves routine operational activities such as testing and fault management of the network and its services.
  • NMs can monitor network operating status, optimize network connectivity and performance, improve network operational stability, and reduce network maintenance costs.
  • an independent network element can also be introduced into the communication system to perform AI-related operations, such as training AI models.
  • the independent network element can be called an AI network element or an AI node, etc., and this application does not limit this name.
  • the AI network element can be directly connected to the access network device in the communication system, or it can be indirectly connected to the access network device through a third-party network element.
  • the third-party network element can be a core network element such as an authentication management function (AMF) network element, a user plane function (UPF) network element, an OAM, a cloud server or other network elements, without limitation.
  • AMF authentication management function
  • UPF user plane function
  • OAM OAM
  • cloud server a cloud server
  • AI network element 130 is introduced into the communication system shown in Figure 1 above.
  • a model can be inferred to obtain a single parameter or multiple parameters.
  • the training process of different models can be deployed on different devices or nodes, or on the same device or node.
  • the inference process of different models can be deployed on different devices or nodes, or on the same device or node.
  • the model parameters may include one or more of the following structural parameters of the model (such as the number of layers and/or weights of the model, etc.), the input parameters of the model (such as input dimension, number of input ports), or the output parameters of the model (such as output dimension, number of output ports).
  • the input dimension may refer to the size of an input data.
  • the input dimension corresponding to the sequence may indicate the length of the sequence.
  • the number of input ports may refer to the number of input data.
  • the output dimension may refer to the size of an output data.
  • the output dimension corresponding to the sequence may indicate the length of the sequence.
  • the number of output ports may refer to the number of output data.
  • the present application also provides several network architectures as shown in Figures 5A to 5D, taking model training and/or reasoning in access network equipment as an example, and divides the functional modules for model training and/or reasoning in access network equipment.
  • the access network device includes a near-real-time access network intelligent controller (RIC) module for model learning and/or reasoning.
  • the near-real-time RIC can obtain network-side and/or terminal-side information from at least one of the CU, DU, and RU, and the information may include training data or reasoning data.
  • the near-real-time RIC can be used to train the model and perform reasoning using the trained model.
  • the near-real-time RIC can submit the reasoning results to at least one of the CU, DU, and RU.
  • the reasoning results can be exchanged between the CU and DU.
  • the reasoning results can be exchanged between the DU and RU, for example, the near-real-time RIC submits the reasoning results to the DU, and the DU submits it to the RU.
  • a non-real-time RIC may be included in addition to the access network equipment.
  • the non-real-time RIC may be located in the OAM or the core network equipment.
  • the non-real-time RIC is used to perform model learning and reasoning.
  • the non-real-time RIC may obtain information on the network side and/or the terminal side from at least one of the CU, DU, and RU.
  • the information may include training data or reasoning data.
  • the non-real-time RIC is used to train the model and may also use the trained model for reasoning.
  • the non-real-time RIC may submit the reasoning result to at least one of the CU, DU, and RU.
  • the reasoning result may be exchanged between the CU and DU.
  • the reasoning result may be exchanged between the DU and RU, for example, the non-real-time RIC submits the reasoning result to the DU, and the DU submits it to the RU.
  • the access network device includes a near-real-time RIC, and a non-real-time RIC is also included outside the access network device.
  • the non-real-time RIC can be located in the OAM or the core network device.
  • the non-real-time RIC can be used for model training, and the near-real-time RIC can obtain the model parameters of the trained AI model from the non-real-time RIC, and obtain network-side and/or terminal-side information from at least one of the CU, DU, and RU, and use the information and the trained AI model to obtain the inference result.
  • the near-real-time RIC can also submit the inference result to at least one of the CU, DU, and RU.
  • the CU and DU can exchange the inference result.
  • the DU and RU can exchange the inference result.
  • the near-real-time RIC submits the inference result to the DU, and the DU submits it to the RU.
  • the near-real-time RIC is used to train the model and perform inference using the trained model, while the non-real-time RIC does not participate in the model training or inference.
  • the non-real-time RIC is used to train the model and perform inference using the trained model, while the real-time RIC does not participate in the model training or inference.
  • the near-real-time RIC is used to train the model and send the model parameters of the trained AI model to the non-real-time RIC, which then performs inference using the trained model.
  • FIG5B shows another example of an ORAN architecture to which the method provided in this application can be applied. Compared to FIG5A (c), FIG5B separates the CU into CU-CP and CU-UP.
  • Figure 5C shows an example diagram of a network architecture to which the method provided in the present application can be applied.
  • the access network device includes one or more AI entities, and the function of the AI entity is similar to the above-mentioned near real-time RIC.
  • the OAM includes one or more AI entities, and the function of the AI entity is similar to the above-mentioned non-real-time RIC.
  • the core network device includes one or more AI entities, and the function of the AI entity is similar to the above-mentioned non-real-time RIC.
  • the difference in models may include at least one of the following differences: structural parameters of the model (such as the number of layers of the model, and/or weights, etc.), input parameters of the model, or output parameters of the model.
  • FIG5D illustrates an example diagram of a network architecture to which the method provided herein can be applied.
  • the access network device in FIG5D is separated into a CU and a DU.
  • the CU may include an AI entity whose functionality is similar to the near-real-time RIC described above.
  • the DU may include an AI entity whose functionality is similar to the near-real-time RIC described above.
  • the CU in FIG5D can be further split into a CU-CP and a CU-UP.
  • one or more AI models can be deployed in the CU-CP.
  • the first access network device requires the second access network device to measure once every 20ms, but requires the second access network device to report once every 2s, and a maximum of 10 reports, that is, the measurement interval is 20ms, the reporting time interval is 2s, and the number of reports is 10 times.
  • the above-mentioned reporting start/end conditions may also be directly specified in the standard.
  • a threshold value for the cell edge call drop rate may be specified in the protocol or configured by the first access network device.
  • the second access network device detects that the cell edge call drop rate exceeds the threshold, the second access network device reports the actual corresponding coverage and capacity performance information (or the coverage and capacity performance information measured by the second access network device); when the second access network device detects that the cell edge call drop rate does not exceed the threshold, the second access network device does not report the actual corresponding coverage and capacity performance information of the second access network device.
  • the configuration information in the first request may include reporting configuration and prediction configuration.
  • the reporting configuration includes one or more of the reporting time interval, the number of reports, the reporting start/end time, or the reporting start/end condition.
  • the prediction configuration includes one or more of the prediction start/end time, the prediction interval, etc. It should be understood that the reporting configuration refers to the configuration that requires the neighboring station to report information (i.e., the configuration for sending the first response), and the prediction configuration refers to the configuration that requires the neighboring station to predict the request item.
  • the first access network device requires the second access network device to predict once every 20ms, but requires the second access network device to report once every 2s, and a maximum of 10 times, that is, the prediction interval is 20ms, the reporting time interval is 2s, and the number of reports is 10 times.
  • the reporting start/end conditions may also be directly specified in a standard.
  • a threshold for a cell edge call drop rate may be specified in a protocol or configured by the first access network device.
  • the second access network device detects that the cell edge call drop rate exceeds the threshold, the second access network device reports the coverage and capacity performance information predicted by the second access network device.
  • the second access network device detects that the cell edge call drop rate does not exceed the threshold, the second access network device does not report the coverage and capacity performance information predicted by the second access network device.
  • the first response sent by the second access network device includes the coverage and capacity performance information actually corresponding to the second access network device. If the second access network device is unable to measure/report, the first response sent by the second access network device indicates the measurement items that cannot be reported and the reasons why they are. In the case where the first request is used to request the coverage and capacity performance information predicted by the second access network device, if the second access network device is able to predict/report, the first response sent by the second access network device includes the coverage and capacity performance information predicted by the second access network device. If the second access network device is unable to predict/report, the first response sent by the second access network device indicates the predicted items that cannot be reported and the reasons why they are.
  • the process for requesting the actual coverage and capacity performance information corresponding to the second access network device and the process for requesting the predicted coverage and capacity performance information of the second access network device can be the same request process, that is, the first access network device sends a first request to request the actual coverage and capacity performance information corresponding to the second access network device and the predicted coverage and capacity performance information of the second access network device. Accordingly, the actual coverage and capacity performance information corresponding to the second access network device fed back by the second access network device and the predicted coverage and capacity performance information of the second access network device are carried in a first response.
  • the process for requesting the actual coverage and capacity performance information corresponding to the second access network device and the process for requesting the predicted coverage and capacity performance information of the second access network device may also be different request processes, that is, the first access network device sends a first request (for example, first request 1) to request the actual coverage and capacity performance information corresponding to the second access network device, and accordingly, the second access network device feeds back the actual coverage and capacity performance information corresponding to the second access network device in a first response 1; the first access network device sends another first request (for example, first request 2) to request the predicted coverage and capacity performance information of the second access network device, and accordingly, the second access network device feeds back the predicted coverage and capacity performance information of the second access network device in a first response 2.
  • a first request for example, first request 1
  • the second access network device feeds back the actual coverage and capacity performance information corresponding to the second access network device in a first response 1
  • the first access network device sends another first request (for example, first request 2) to request the predicted coverage and capacity performance information of the
  • the coverage and capacity performance information actually corresponding to the second access network device or the coverage and capacity performance information predicted by the second access network device can include information in one or more of the following dimensions: the average performance information of the terminal associated with the second access network device, or the resource status information at the cell edge, etc.
  • the average performance information of the terminal associated with the second access network device includes one or more of the following: the average performance of the terminal under the second access network device, the average performance of the terminal under the cell of the second access network device, the average performance of the terminal under the SSB of the cell, the average performance of the terminal at the cell edge, or the average performance of the terminal under the slice. That is, the average performance of the terminal can be the average performance of the access network device level (or node level)/cell level/SSB level/cell edge level/slice level. Among them, the average performance of the access network device level can be the average performance of all terminals or some terminals under the access network device.
  • the average performance of the cell level can be the average performance of all terminals or some terminals under a certain cell.
  • the average performance of the SSB level/cell edge level/slice level can be the average performance of all terminals or some terminals under a certain SSB/a certain cell edge/a certain slice, which is not limited in this application.
  • the average performance of the access network device level/cell level/SSB level/cell edge level/slice level is used as an example to illustrate the average performance of all terminals under the corresponding access network device/cell/SSB/cell edge/slice.
  • the average performance information of the terminals associated with the second access network device generally includes the identifier of the second access network device and the average performance of all terminals under the second access network device.
  • the average performance information of the terminal associated with the second access network device generally includes the cell identifier and SSB identifier of the cell under the second access network device, and the average performance of all terminals under the SSB;
  • the average performance information of the terminal associated with the second access network device generally includes the cell identifier and cell edge identifier of the cell under the second access network device, and the average performance of all terminals under the cell edge;
  • the average performance information of the terminal associated with the second access network device usually includes the slice identifier and the average performance of all terminals under the slice.
  • the above average performance includes one or more of the following: average access success rate, average access delay, average cell call drop rate, average handover success rate, average user throughput, average packet loss rate of users, average user delay, or average energy cost, etc.
  • the resource status information of the cell edge includes one or more of the following: radio resource status (e.g., physical resource block (PRB) usage), number of RRC connections, number of active UEs, composite available capacity (CAC), or slice identifier, etc.
  • the slice identifier is used to identify the slice resource status information of the cell edge.
  • the slice resource status of the cell edge includes one or more of the radio resource status, number of RRC connections, number of active UEs, composite available capacity, etc., without limitation.
  • the second access network device may also send one or more of the following information to the first access network device: resource status, coverage modification list, cell/beam coverage modification plan, cell/beam distribution (e.g., served cell info), predicted resource status, etc.
  • the predicted resource status may be at the access network device level/cell level, without limitation.
  • protocol TS 38.423 which will not be elaborated here.
  • the first access network device can also obtain information associated with the first access network device.
  • the information associated with the first access network device may include coverage and capacity performance information associated with the first access network device.
  • the coverage and capacity performance information associated with the first access network device includes the coverage and capacity performance information actually corresponding to the first access network device, and/or the coverage and capacity performance information predicted by the first access network device.
  • the coverage and capacity performance information associated with the first access network device please refer to the above description of the coverage and capacity performance information associated with the second access network device, which will not be repeated here.
  • the information associated with the first access network device may also include one or more of the following: UE measurement reports, UE history information, SON reports, UE traffic, UE distribution per cell, resource status, coverage configuration, coverage modification list, cell/beam distribution (e.g., served cell info), predicted resource status, etc.
  • the predicted resource status may be at the access network device level/cell level, without limitation.
  • the SON report may be, for example, a radio link failure (RLF) report, a random access channel (RACH) report, a handover failure (HOF) report, a connection establishment failure (CEF) report, etc., without limitation.
  • RLF radio link failure
  • RACH random access channel
  • HAF handover failure
  • CEF connection establishment failure
  • the predicted coverage and capacity performance information and the predicted resource status may also be included in the prediction information.
  • the first access network device sends a first message to the second access network device.
  • the second access network device receives the first message from the first access network device.
  • the first access network device may predict CCO adjustment information of the first access network device and/or the second access network device based on the information associated with the second access network device to obtain CCO adjustment information of the first access network device and/or the second access network device (also known as inferred CCO action).
  • the first access network device may predict CCO adjustment information of the first access network device and/or the second access network device based on information associated with the first access network device (e.g., coverage and capacity performance information associated with the first access network device) and information associated with the second access network device (e.g., coverage and capacity performance information associated with the second access network device). Furthermore, the first access network device sends the predicted coverage and capacity optimization CCO adjustment information of the first access network device and/or the second access network device to the second access network device.
  • the predicted coverage and capacity optimization CCO adjustment information of the first access network device and/or the second access network device may be carried in the first message.
  • the first message can be an existing message, such as an XN configuration update (XN CONFIGURATION UPDATE) message, or the first message can also be a newly designed message, which is not limited in this application.
  • the following text mainly uses the CCO adjustment information of the first access network device (or referred to as inferred CCO action of gNB1) as an example for schematic explanation.
  • the CCO adjustment information of the second access network device or referred to as inferred CCO action of gNB2
  • the description of the content contained in the CCO adjustment information of the first access network device in the following text which will not be repeated in the following text.
  • the difference may be that (1) the CCO adjustment information of the second access network device sent by the first access network device to the second access network device may be less than one, and may be a list including multiple candidate CCO adjustment information of the second access network device.
  • the second access network device can select/select one CCO adjustment information of the second access network device from the list and notify the first access network device of the selected/selected one.
  • the content contained in the CCO adjustment information of the second access network device sent by the first access network device to the second access network device may be some ranges. For example, there are multiple CCO plans corresponding to solving the same predicted CCO problem. After the second access network device receives the CCO adjustment information of the second access network device, it can select a CCO plan from the multiple CCO plans to execute.
  • the above-mentioned predicted CCO adjustment information of the first access network device includes one or more of the following: predicted CCO problem (CCO issue), predicted time of occurrence of the CCO problem, predicted coverage state (coverage state), predicted time of change of coverage state, CCO plan (CCO plan) corresponding to the predicted CCO problem, predicted execution time of the CCO plan, predicted coverage and capacity performance information of the first access network device and/or the second access network device/coverage and capacity performance information of the first access network device and/or the second access network device after the predicted CCO plan is executed or the coverage state changes (or inferred CC performance).
  • predicted CCO problem CCO issue
  • CCO issue predicted time of occurrence of the CCO problem
  • predicted coverage state coverage state
  • CCO plan CCO plan
  • the above-mentioned predicted coverage and capacity performance information of the first access network device and/or the second access network device can be understood as the coverage and capacity performance information of the first access network device and/or the second access network device at a certain time in the future.
  • the above-mentioned predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or after the coverage status changes can be understood as the coverage and capacity performance information of the first access network device and/or the second access network device at a certain time in the future after the execution of a specific CCO plan or after the coverage status changes.
  • the CCO adjustment information of the first access network device may also include information such as predicted coverage configuration or modification cause.
  • the first access network device may first predict a possible CCO problem, then predict a corresponding CCO strategy to resolve the CCO problem.
  • the CCO strategy may be a coverage configuration, a CCO plan, etc.
  • the coverage status and coverage and capacity performance information after implementing different CCO strategies are predicted.
  • the first access network device may also simultaneously predict the possible CCO problem, the corresponding CCO strategy, the coverage status and coverage and capacity performance information under different CCO strategies, and the predicted time information.
  • the above-mentioned predicted CCO plan may include the first switching strategy (or UE offload plan) recommended by the first access network device for the terminal to switch from the first access network device to the second access network device.
  • the first handover strategy includes one or more of the following information: the number of terminals recommended for handover (UE numbers), the identifiers of each terminal recommended for handover (UE ID List), the identifier of the source cell (source cell ID), the identifier of the target cell (target cell ID), terminal measurement information (UE measurement info), or terminal prediction information (UE prediction info).
  • the predicted CCO plan may include a plan/handover strategy (hereinafter referred to as the first handover strategy) for handover from the first access network device to the second access network device required to resolve the predicted CCO issue.
  • the first handover strategy may specifically indicate which terminals will be handed over from which cells to which cells (i.e., the identifiers of each terminal recommended for handover, the source cell identifier, and the target cell identifier), as well as information such as the time point/time period for handover execution (e.g., the handover time point for each terminal can be refined). Therefore, based on the received first handover strategy, the second access network device can determine which terminal is to be handed over from which cell to which cell, and then, based on the terminal's measurement information and prediction information, ultimately determine whether to allow/accept handover for the corresponding terminal.
  • the second access network device can determine which terminal is to be handed over from which cell to which cell, and then, based on the terminal's measurement information and prediction information, ultimately determine whether to allow/accept handover for the corresponding terminal.
  • the measurement information of the above-mentioned terminal may be measurement information of the terminal at the source base station (i.e., the first access network device), such as reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), etc.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • SINR signal to interference plus noise ratio
  • the prediction information of the terminal may be trajectory prediction, traffic prediction, measurement prediction, RLF/HOF prediction, etc. of the terminal.
  • the terminal's prediction information may be predicted by the first access network device or by the terminal itself, without limitation. It should be noted that if the terminal's prediction information is predicted by the terminal itself, the terminal may send the terminal's prediction information to the second access network device.
  • the predicted CCO plan may further include one or more of a predicted handover trigger threshold or a predicted handover trigger change.
  • the handover threshold is a signal level used by the base station to determine whether to perform handover on the terminal, and the handover trigger change is a change in the handover threshold.
  • the predicted CCO plan may also include a coverage modification plan provided by cells or SSB beams, such as cell/beam shaping, cell/beam splitting, cell/beam merging, etc.
  • the predicted CCO issue may be coverage, cell edge capacity, network energy saving, etc.
  • the predicted CCO issue occurrence time may be the predicted time point or time period of the CCO issue, etc., without limitation.
  • the predicted coverage status may be the coverage status at the cell level, SSB level, or slice level.
  • the predicted coverage status change time may be the predicted time point or time period of the coverage status change.
  • the inferred CC performance may represent coverage and capacity performance information of the first access network device and/or the second access network device at a certain time in the future.
  • the inferred CC performance may represent coverage and capacity performance information of the source base station (i.e., the first access network device) and/or the neighboring base station (i.e., the second access network device) at a certain time in the future after each CCO plan is executed or after the coverage status changes.
  • the second network device can refer to the inferred CC performance to determine whether to adopt a corresponding CCO action, or whether to modify the local coverage configuration, and how to modify the local coverage configuration to adapt to the coverage plan of the first access network device.
  • the coverage modification plan of the cell or SSB beam described above indicates the cell/SSB beam to be replaced, i.e., the replacing cell information (replacing cell info) or the replacing SSB information (replacing SSB info).
  • gNB1 sends CCO adjustment information at 10:00.
  • the CCO adjustment information can indicate: it is predicted that cell 1 will have a coverage hole problem at 10:10, it is predicted that the coverage status from 10:05 to 10:35 will be 3, it is predicted that cell 1 will be replaced by cell 2 and cell 3 at 10:05, it is predicted that UE1 and UE2 will be switched to cell 1 under gNB2 at 10:04, and it is predicted that UE3 will be switched to cell 2 under gNB2 at 10:06.
  • the second access network device can refer to the CCO adjustment information of the first access network device and adaptively/correspondingly adjust the coverage configuration of the second access network device to adapt to the coverage adjustment of the first access network device.
  • the second access network device can also adaptively/correspondingly adjust the coverage configuration of the second access network device according to the CCO adjustment information of the second access network device to adapt to the coverage plan of the first access network device.
  • the second access network device can adaptively/correspondingly adjust the coverage configuration of the second access network device according to the CCO adjustment information of the first access network device and the CCO adjustment information of the second access network device to adapt to the coverage plan of the first access network device.
  • the embodiment of the present application may further include one or more of the following steps, wherein the step numbers should not be regarded as limiting the order in which the steps are executed:
  • the second access network device sends a second message to the first access network device.
  • the first access network device receives the second message from the second access network device.
  • the second access network device if the second access network device agrees to the modification, the second access network device sends a second message to the first access network device, and the second message includes one or more of the following information: the CCO plan accepted by the second access network device, the CCO plan not accepted by the second access network device, the reason for acceptance, the reason for non-acceptance, or the coverage state after adjustment by the second access network device (or the coverage state to which the second access network device is preparing to adjust, or the coverage state to which the second access network device accepts the adjustment), etc.
  • the second message may be an existing message, such as an XN CONFIGURATION UPDATE message, or may be a newly designed message, which is not limited in this application.
  • the CCO plan accepted by the second access network device includes a second handover policy for terminals accepted by the second access network device for handover from the first access network device to the second access network device.
  • the second handover policy includes one or more of the following information: the number of terminals whose handover the second access network device accepts, the number of terminals whose handover the second access network device does not accept, the identifiers of terminals whose handover the second access network device accepts, the identifiers of terminals whose handover the second access network device does not accept, the time period for allowing handover, the reason for acceptance, or the reason for rejection, etc.
  • the CCO plan accepted by the second access network device may also include one or more items such as an indication that the second access network device accepts the switching threshold modification, a range of accepted/allowed switching threshold values, or a range of accepted/allowed switching threshold change values.
  • the CCO plan accepted by the second access network device may also include one or more information such as the coverage modification after modification by the second access network device, the coverage modification accepted by the second network device, the coverage modification not accepted by the second network device, the reason for acceptance, or the reason for non-acceptance.
  • the second access network device if the second access network device does not agree to the modification, the second access network device sends a second message to the first access network device, and the second message may indicate one or more of the reasons for the modification failure, etc.
  • the first access network device sends a second request to the second access network device.
  • the second access network device receives the second request from the first access network device.
  • gNB1 sends a resource status request (RESOURCE STATUS REQUEST) to gNB2.
  • gNB2 receives the RESOURCE STATUS REQUEST from gNB1.
  • gNB2 sends a RESOURCE STATUS UPDATE message to gNB1.
  • gNB1 receives the RESOURCE STATUS UPDATE message from gNB2.
  • gNB2 reports its actual coverage and capacity performance (CC performance) in the RESOURCE STATUS UPDATE message. If gNB2 is unable to measure or report CC performance, gNB2 indicates the measurement items that cannot be reported and the reasons for the failure to report to gNB1 in the RESOURCE STATUS RESPONSE message.
  • This DATA COLLECTION REQUEST is used to request predicted coverage and capacity performance information from gNB2 (also known as a predicted CC performance request).
  • a predicted CC performance request can also be called a CC performance prediction request.
  • gNB1 can request which predicted CC performance information gNB2 should report, along with the corresponding configurations (e.g., reporting interval, number of reports, reporting start/end times, predicted start/end times, prediction interval, and reporting start/end conditions).
  • some of these configurations, such as reporting start/end conditions can be predefined by the protocol rather than indicated by gNB1.
  • the DATA COLLECTION REQUEST is used to request CCO performance feedback from gNB2 (also known as a CCO performance feedback request).
  • gNB1 can request in the DATA COLLECTION REQUEST which CCO performance feedback reports gNB2 should report, along with the corresponding configurations (e.g., reporting interval, number of reports, reporting start/end times, measurement start/end times, measurement interval, and reporting start/end conditions).
  • some of these configurations, such as reporting start/end conditions can be predefined by the protocol instead of being indicated by gNB1.
  • DATA COLLECTION REQUEST also includes information such as data collection identifier (DATA COLLECTION ID).
  • gNB2 sends a DATA COLLECTION UPDATE message to gNB1.
  • gNB1 receives the DATA COLLECTION UPDATE message from gNB2.
  • gNB2 can predict gNB2's coverage and capacity performance based on its deployed performance prediction model.
  • gNB2 can report the predicted CC performance in a DATA COLLECTION UPDATE message. If gNB2 is unable to predict or report the predicted CC performance, gNB2 can indicate the predicted items that could not be reported and the reasons for the inability to report to gNB1 in a DATA COLLECTION RESPONSE.
  • DATA COLLECTION UPDATE message also includes information such as DATA COLLECTION ID.
  • CCO performance prediction and CCO performance feedback can be configured and transmitted in one DATA COLLECTION process or in different DATA COLLECTION processes, which is not limited in this application.
  • gNB1 predicts CCO adjustment information of gNB1 based on gNB1's CC performance and predicted CC performance, as well as gNB2's CC performance and predicted CC performance.
  • gNB1 can input gNB1's CC performance and predicted CC performance, as well as gNB2's CC performance and predicted CC performance into the CCO adjustment prediction model to predict gNB1's CCO adjustment information (or called inferred CCO action of gNB1).
  • gNB1 can first predict a possible CCO problem and then predict corresponding CCO strategies to address the problem.
  • the CCO strategy can include coverage configuration, CCO plan, etc.
  • gNB1 predicts the coverage status and coverage and capacity performance information after implementing different CCO strategies.
  • gNB1 can also simultaneously predict the possible CCO problem, the corresponding CCO strategy, the coverage status and coverage and capacity performance information under different CCO strategies, and the predicted time information.
  • gNB1 sends an XN CONFIGURATION UPDATE message to gNB2.
  • gNB2 receives the XN CONFIGURATION UPDATE message from gNB1.
  • gNB1 may send the predicted CCO adjustment information of gNB1 to gNB2 based on an existing process, such as an XN configuration update (XN CONFIGURATION UPDATE) message, or based on a new process.
  • This embodiment mainly uses the example of the predicted CCO adjustment information of gNB1 being carried in the XN CONFIGURATION UPDATE message for schematic illustration.
  • gNB2 sends an XN CONFIGURATION UPDATE message to gNB1.
  • gNB1 receives the XN CONFIGURATION UPDATE message from gNB2.
  • gNB2 may perform the corresponding coverage modification based on the predicted applicability of gNB1's CCO adjustment information and send an XN CONFIGURATION UPDATE message to gNB1.
  • the XN CONFIGURATION UPDATE message includes a CCO plan acceptable to gNB2 and the adjusted coverage status of gNB2.
  • the CCO plan acceptable to gNB2 may include a handover strategy (also known as an Accept UE offload plan) accepted by gNB2.
  • the handover strategy accepted by gNB2 may include the number of terminals for which handover is unacceptable/acceptable, a list of terminals for which handover is unacceptable/acceptable, the time when handover is permitted, the reason for unacceptability/acceptance, etc.
  • the CCO plan acceptable to gNB2 may also include one or more of an indication that gNB2 accepts the handover threshold modification, a range of accepted/allowed handover threshold values, or a range of accepted/allowed handover threshold change values. If gNB2 disagrees with the modification, gNB2 may indicate to gNB1 that the modification failed and the reason.
  • gNB1 sends a HANDOVER REQUEST to gNB2.
  • gNB2 receives the HANDOVER REQUEST from gNB1.
  • gNB2 may perform a cell handover for the terminal based on the handover request sent by gNB1.
  • the HANDOVER REQUEST message may also include a DATA COLLECTION ID.
  • the DATA COLLECTION ID is used to instruct gNB2 to provide CCO performance feedback in a DATA COLLECTION UPDATE message.
  • gNB2 sends a DATA COLLECTION UPDATE message to gNB1.
  • gNB1 receives the DATA COLLECTION UPDATE message from gNB2.
  • the DATA COLLECTION UPDATE message includes CCO performance feedback, DATA COLLECTION ID, and other information.
  • CCO performance feedback please refer to the description of step S805 in Figure 8 , which is not repeated here.
  • S9010 and gNB1 evaluate inferred CCO actions and terminal performance based on CCO performance feedback, and further optimize/update the CCO adjustment prediction model.
  • gNBs can negotiate and execute predicted CCO actions, thereby proactively avoiding potential CCO issues, optimizing overall network performance, and ensuring end-user services. Furthermore, gNBs collect CCO performance feedback to evaluate inferred CCO actions and optimize AI models, further improving the prediction accuracy of AI services.
  • a CU-DU separation architecture that is, an architecture in which the first access network device includes CU1 and DU1, and the second access network device includes CU2 and DU2, the following two situations may exist:
  • DU1 performs coverage modification (e.g., coverage configuration adjustment)
  • CU1 needs to send the predicted CCO adjustment information to DU1 so that DU1 can perform coverage modification.
  • CU2 also needs to send the predicted CCO adjustment information received from CU1 to DU2.
  • S1005b DU1 sends the predicted CCO adjustment information to CU1.
  • CU1 receives the predicted CCO adjustment information from DU1.
  • S1006b CU1 sends the predicted CCO adjustment information to CU2.
  • CU2 receives the predicted CCO adjustment information from CU1.
  • S1007b CU2 sends the predicted CCO adjustment information to DU2.
  • DU2 receives the predicted CCO adjustment information from CU2.
  • the communication device provided in this application will be described in detail below with reference to FIG. 11 and FIG. 12 .
  • the present application provides a communication device 1100, which includes a processing module 1110 and a communication module 1120.
  • the communication device 1100 may be an access network device, or may be a communication device applied to or used in conjunction with an access network device to implement a communication method executed on the access network device side.
  • the communication module may also be referred to as a transceiver module, transceiver, transceiver, or transceiver device.
  • the processing module may also be referred to as a processor, processing board, processing unit, or processing device.
  • the communication module is used to perform the sending and receiving operations on the access network device side (i.e., the first access network device and the second access network device) in the above method.
  • the device used to implement the receiving function in the communication module can be regarded as a receiving unit, and the device used to implement the sending function in the communication module can be regarded as a sending unit. That is, the communication module includes a receiving unit and a sending unit.
  • the processing module 1110 may be used to implement the processing functions of the first access network device in the examples described in Figures 8 to 10
  • the communication module 1120 may be used to implement the transceiver functions of the first access network device in the examples described in Figures 8 to 10.
  • the communication device may be understood with reference to the third aspect and possible designs of the third aspect in the Summary of the Invention. Specifically:
  • the communication module 1120 is configured to obtain coverage and capacity performance information associated with the second access network device
  • the communication module 1120 is used to send a first message to the second access network device, wherein the first message includes predicted coverage and capacity optimization CCO adjustment information of the first access network device and/or the second access network device, and the CCO adjustment information is related to the coverage and capacity performance information associated with the second access network device.
  • the communication module 1120 when acquiring the coverage and capacity performance information associated with the second access network device, is specifically configured to:
  • a first response is received from the second access network device, where the first response includes coverage and capacity performance information associated with the second access network device.
  • the first request includes first indication information, and the first indication information indicates that the first access network device expects the second access network device to feedback coverage and capacity performance information, and/or the first access network device expects the second access network device to feedback configuration information corresponding to the coverage and capacity performance information.
  • the coverage and capacity performance information associated with the second access network device includes coverage and capacity performance information actually corresponding to the second access network device, and/or coverage and capacity performance information predicted by the second access network device.
  • the coverage and capacity performance information associated with the second access network device includes one or more of the following:
  • Average performance information of terminals associated with the second access network device or resource status information of a cell edge.
  • the average performance information of the terminal associated with the second access network device includes one or more of the following:
  • the average performance of terminals under the second access network device the average performance of terminals under the cell of the second access network device, the average performance of terminals under the synchronization signal block SSB of the cell, the average performance of terminals at the edge of the cell, or the average performance of terminals under the slice.
  • the cell edge resource status information includes one or more of the following:
  • Radio resource status number of radio resource control (RRC) connections, number of active terminals, composite available capacity, or slice identifier.
  • RRC radio resource control
  • the predicted CCO adjustment information of the first access network device includes one or more of the following:
  • Predicted CCO problem predicted time of occurrence of the CCO problem, predicted coverage status, predicted time of change of the coverage status, predicted CCO plan corresponding to the CCO problem, predicted execution time of the CCO plan, and predicted coverage and capacity performance information of the first access network device and/or the second access network device after the execution of the CCO plan or the change of coverage status.
  • the CCO plan includes a first switching strategy recommended by the first access network device for the terminal to switch from the first access network device to the second access network device.
  • the first switching strategy includes one or more of the following information:
  • the CCO plan includes a predicted handover threshold value or a predicted handover threshold change value.
  • the communication module 1120 is further configured to:
  • a second message is received from the second access network device, where the second message includes a CCO plan accepted by the second access network device and one or more of the coverage status adjusted by the second access network device.
  • the CCO plan accepted by the second access network device includes a second switching strategy accepted by the second access network device for switching the terminal from the first access network device to the second access network device.
  • the second switching strategy includes one or more of the following information:
  • the number of terminals that the second access network device accepts switching the number of terminals that the second access network device does not accept switching, the identifiers of terminals that the second access network device accepts switching, the identifiers of terminals that the second access network device does not accept switching, the time when switching is allowed, the reason for acceptance, or the reason for non-acceptance.
  • the CCO plan received by the second access network device includes one or more of the following information:
  • the second access network device accepts an indication of a handover threshold modification, accepts/allows a range of handover threshold values, or accepts/allows a range of handover threshold change values.
  • the communication module 1120 is further configured to:
  • a second response is received from the second access network device, where the second response includes CCO performance feedback information of the second access network device.
  • the second request includes second indication information, and the second indication information indicates that the first access network device expects the second access network device to feedback CCO performance feedback information, and/or the first access network device expects the second access network device to feedback configuration information corresponding to the CCO performance feedback information.
  • the second request includes a first identifier, where the first identifier is used to identify the second indication information
  • the communication module 1120 is further configured to:
  • the aforementioned communication module 1120 and/or processing module 1110 can be implemented as virtual modules.
  • the processing module 1110 can be implemented as a software functional unit or a virtual device, and the communication module 1120 can be implemented as a software function or a virtual device.
  • the processing module 1110 or the communication module 1120 can also be implemented as a physical device.
  • the communication module 1120 can be an input/output circuit and/or a communication interface to perform input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing module 1110 is an integrated processor, microprocessor, or integrated circuit.
  • the communication device 1200 may also include a communication interface 1230, through which the communication device 1200 can exchange information with other devices.
  • the communication interface 1230 may be a transceiver, circuit, bus, module, pin, or other type of communication interface.
  • the communication interface 1230 in the device 1200 may also be an input-output circuit that can input information (or receive information) and output information (or send information).
  • the processor is an integrated processor or microprocessor or integrated circuit or logic circuit, and the processor can determine output information based on input information.
  • the bus 1240 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus may be classified as an address bus, a data bus, a control bus, or the like.
  • FIG12 shows only one thick line, but this does not imply that there is only one bus or only one type of bus.
  • a processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in this application.
  • a general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in this application may be directly executed by a hardware processor, or by a combination of hardware and software modules within the processor.
  • a memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or a volatile memory, such as a random-access memory (RAM).
  • a memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory in this application may also be a circuit or any other device capable of performing a storage function, for storing program instructions and/or data.
  • the communication device 1200 can be applied to a first access network device.
  • the communication device 1200 can be a first access network device, or a device that can support the first access network device and implement the functions of the first access network device in any of the above-mentioned examples.
  • the memory 1220 stores a computer program (or instruction) and/or data that implements the functions of the first access network device in any of the above-mentioned examples.
  • the processor 1210 can execute the computer program stored in the memory 1220 to complete the method performed by the first access network device in any of the above-mentioned examples.
  • the communication interface in the communication device 1200 can be used to interact with the second access network device, send information to the second access network device, or receive information from the second access network device.
  • the communication device 1200 can be applied to a second access network device.
  • the communication device 1200 can be a second access network device, or a device that can support the second access network device and implement the functions of the second access network device in any of the above-mentioned examples.
  • the memory 1220 stores a computer program (or instruction) and/or data that implements the functions of the second access network device in any of the above-mentioned examples.
  • the processor 1210 can execute the computer program stored in the memory 1220 to complete the method executed by the second access network device in any of the above-mentioned examples.
  • the communication interface in the communication device 1200 can be used to interact with the first access network device, send information to the first access network device, or receive information from the first access network device.
  • the communication device 1200 provided in this example can be applied to a first access network device to implement the method performed by the first access network device, or applied to a second access network device to implement the method performed by the second access network device, the technical effects that can be achieved can be referred to the above method examples and will not be repeated here.
  • the present application provides a communication system, including a first access network device and a second access network device, wherein the first access network device and the second access network device can implement the communication method provided in the examples shown in Figures 8 to 10.
  • the technical solution provided in this application can be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal device, an access network device or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the examples can reference each other, for example, the methods and/or terms between method embodiments can reference each other, for example, the functions and/or terms between device embodiments can reference each other, for example, the functions and/or terms between device examples and method examples can reference each other.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé de communication et un appareil associé. Dans le procédé, la station concernée (c'est-à-dire, un premier dispositif de réseau d'accès) collecte des informations de performance de couverture et de capacité associées à une station voisine (c'est-à-dire, un second dispositif de réseau d'accès), aidant ainsi la station concernée à connaître les conditions de ressource et de couverture/capacité de la station voisine, et facilitant ainsi la prédiction précise de problèmes de CCO et de résolution de stratégies. En mettant en œuvre la présente demande, un premier dispositif de réseau d'accès et/ou un second dispositif de réseau d'accès peuvent ajuster de manière proactive leur propre configuration de couverture de manière correspondante sur la base d'informations de réglage de CCO avant que des problèmes de couverture n'aient lieu, de telle sorte qu'il est possible d'éviter à l'avance d'éventuels problèmes de CCO, ce qui facilite l'optimisation de la performance globale du réseau et assure les services au terminal.
PCT/CN2025/082473 2024-04-03 2025-03-13 Procédé de communication et appareil associé Pending WO2025209149A1 (fr)

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Citations (3)

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CN101873596A (zh) * 2009-04-27 2010-10-27 中兴通讯股份有限公司 一种优化网络覆盖和容量的方法及系统
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