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WO2025152726A1 - Procédé et appareil d'accès à une cellule - Google Patents

Procédé et appareil d'accès à une cellule

Info

Publication number
WO2025152726A1
WO2025152726A1 PCT/CN2024/141620 CN2024141620W WO2025152726A1 WO 2025152726 A1 WO2025152726 A1 WO 2025152726A1 CN 2024141620 W CN2024141620 W CN 2024141620W WO 2025152726 A1 WO2025152726 A1 WO 2025152726A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
information
tasks
communication
types
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/CN2024/141620
Other languages
English (en)
Chinese (zh)
Inventor
王瑞心
薛静
马梦瑶
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 WO2025152726A1 publication Critical patent/WO2025152726A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • Communication experience is one of the core competitiveness of terminal devices, and one of the main reasons affecting communication experience is cell optimization; illustratively, cell optimization includes at least one of cell switching, cell reselection, cell residence and cell reconstruction.
  • the first device can receive the communication quality between the first device and different cells under different task types and different access times indicated by the second device; for example, the communication quality of N types of tasks of the first cell in M time periods, and the communication quality of N types of tasks of the second cell in M time periods.
  • the cell to be accessed can be selected based on the current task type, the time to select the cell to be accessed, and other information.
  • the first device can select the cell with the best communication quality corresponding to the current task type, the time to access the cell, and other information.
  • it can provide differentiated assistance for different tasks in different time periods, thereby improving the superiority of cell selection and improving user experience.
  • the network device in the embodiment of the present application is a device that connects a terminal device to a wireless network.
  • the network device may be a node in a radio access network (RAN), which may also be referred to as a base station or a RAN node (or device).
  • RAN radio access network
  • the access network device may be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system.
  • ORAN open radio access network
  • CU may also be referred to as open (open, O)-CU
  • DU may also be referred to as O-DU
  • CU-CP may also be referred to as O-CU-CP
  • CU-UP may also be referred to as O-CU-UP
  • RU may also be referred to as O-RU.
  • Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.
  • the communication system described in the embodiment of the present application is for the purpose of more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application.
  • a person of ordinary skill in the art can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
  • the execution subject may execute some or all of the steps in the embodiments of the present application, and these steps or operations are only examples.
  • the embodiments of the present application may also execute other operations or variations of various operations.
  • the various steps may be executed in different orders presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be executed.
  • the cell access method may include the following steps S301 to S302 .
  • the second device sends first information to the first device, and correspondingly, the first device receives the first information from the second device.
  • the first cell and the second cell are cells within coverage of different network devices, that is, the first cell and the second cell belong to different network devices.
  • the second device may be a network device to which the first cell belongs, or the second device may be a network device to which the second cell belongs, or the second device may be a network device other than the network device to which the first cell belongs and the network device to which the second cell belongs.
  • the first information may also indicate other cell information in addition to the first cell information and the second cell information. Accordingly, the first information may also indicate the communication quality of N types of tasks corresponding to other cells in M time periods; therefore, it can be considered that: the first information can indicate the cell information of different cells, and the communication quality of N types of tasks corresponding to each cell in different cells in M time periods. That is, the first information may indicate multiple cell information, and the communication quality of N types of tasks corresponding to each cell in multiple cells in M time periods, wherein the multiple cells include the first cell and the second cell.
  • the first information indicates the communication quality of cell #1 and the N types of tasks corresponding to cell #1 in M time periods, the communication quality of cell #2 and the N types of tasks corresponding to cell #2 in M time periods,..., the communication quality of cell #10 and the N types of tasks corresponding to cell #10 in M time periods.
  • the first device determines to access the first cell or the second cell based on the first information and the current task type of the first device, and the N types of tasks include the current task type.
  • the first device determines to access the first cell or the second cell based on the first information and the current task type of the first device, including: the first device determines to access the first cell or the second cell based on the first information, the current task type of the first device, and the current time period.
  • the first device may select one of the communication qualities of the task type in the current time period indicated by the first information based on the current task type, and determine to access the cell corresponding to the communication quality.
  • the communication quality may be the best communication quality among the communication qualities of the task type in the current time period indicated by the first information.
  • the first device may also determine to access the first cell or the second cell in combination with the local information of the first device. That is, the first device may determine to access the first cell or the second cell based on the first information, the current task type of the first device, and the local information of the first device.
  • the first device may determine to access the first cell or the second cell based on the first information and the current task type of the first device; when the multiple cells include more than 2 cells, and the multiple cells include the first cell and the second cell, the first device may determine to access one of the multiple cells based on the first information and the current task type of the first device.
  • the first device can select a cell to access from cell #1 and cell #2, that is, the first device can determine to access cell #1 or cell #2 based on the first information and the current task type of the first device; when the multiple cells include cell #1, cell #2 and cell #3, the first device can select a cell to access from cell #1, cell #2 and cell #3, that is, the first device can determine to access one of cell #1, cell #2 or cell #3 based on the first information and the current task type of the first device.
  • any time period included in the first information corresponds to X*N communication qualities, which may be as shown in the following Table 3:
  • some cells may include cells whose coverage is part of the coverage of the network device to which they belong, and cells whose coverage is the coverage of the network device to which they belong; therefore, some cells may be considered to include sub-cells and cells.
  • the corresponding communication quality varies greatly at different locations within the coverage of the network device, or some tasks are more obviously affected by the network quality at different locations within the coverage of the network device. Therefore, in order to maintain the stability of the communication quality within a range, the coverage of the network device may be divided into multiple sub-ranges, each range corresponding to a sub-cell, so that the communication quality corresponding to each sub-cell is relatively stable.
  • the parameter of the current position of the first device is also required in the process of determining whether to access the third cell or the second cell; that is, the cell access method described in the embodiment of the present application also includes: the first device also determines to access the third cell or the second cell based on the current position of the first device.
  • the first information may include the content shown in Table 4 below.
  • any time period included in the first information corresponds to 3N communication qualities, which may be the content shown in Table 4 below. That is to say, Table 3 above may be replaced by the content shown in Table 4 below:
  • the first information includes the communication quality of the first type of tasks and the second type of tasks corresponding to multiple cells in M time periods, that is, the value of N is 2. Since the value of M corresponding to the first type of tasks is different from the value of M corresponding to the second type of tasks, the value of M corresponding to the first type of tasks can be M1, and the value of M corresponding to the second type of tasks can be M2. Take M1 as 2 times of M2 as an example. At this time, the first information can include the content shown in Table 5 below, that is, the above Table 1 can be replaced with the content shown in Table 5 below. Among them, the first information includes the communication quality of the first type of tasks corresponding to any one of the multiple cells in M1 time periods, and the first information includes the communication quality of the second type of tasks corresponding to any one of the multiple cells in M2 time periods.
  • the coverage of each of the multiple cells is the coverage of the network device to which it belongs.
  • a sub-cell can be understood as: a cell whose coverage is a partial range of the coverage range of the network equipment to which it belongs; a cell can be understood as: a cell whose coverage is the coverage range of the network equipment to which it belongs; for example, as shown in Figure 6, the coverage range of sub-cell #1 to sub-cell #5 can constitute the coverage range of cell #1, that is, the coverage range of any sub-cell among sub-cell #1 to sub-cell #5 is a partial range of the coverage range of cell #1.
  • the multiple cells actually refer to multiple sub-cells.
  • the first information indicates the communication quality of N types of tasks corresponding to the multiple sub-cells in M time periods respectively.
  • step S302 can be replaced by: the first device determines to access one of the multiple cells to which the multiple sub-cells belong based on the first information and the current task type of the first device.
  • the number of sub-cells belonging to the same network device is the same among the multiple sub-cells.
  • the multiple network devices include network devices belonging to multiple cells respectively, that is, the multiple network devices include network devices belonging to a first cell, network devices belonging to a second cell, and the second device; thus, the multiple terminal devices include terminal devices within the coverage of the network devices belonging to the first cell, terminal devices within the coverage of the network devices belonging to the second cell, and the first device.
  • the communication parameters of a certain type of task in a certain period of time may include: the running results of the task in the period of time.
  • the running results of the task include but are not limited to: the task is running normally, and the task is not running normally.
  • the communication parameter may also include the reason why the task does not operate normally, for example, the task fails to operate, or at least one of network freeze, delay, and frame loss occurs during the operation of such task.
  • multiple terminal devices can periodically report communication parameters corresponding to such tasks.
  • S304 The second device generates first information.
  • the second device may generate the first information based on second information respectively received by multiple network devices from terminal devices within their coverage areas.
  • the first information includes information of multiple cells, and communication quality of N types of tasks corresponding to each of the multiple cells in M time periods.
  • the second device may construct a first task map based on the plurality of second information, wherein the first task map includes a plurality of cell information and the communication quality of N types of tasks corresponding to each of the plurality of cells in M time periods. That is, the first information includes the first task map.
  • the second device may classify the communication parameters of the same type of tasks corresponding to multiple cells in the same time period in the multiple second information into the same category based on the time period and the task type, thereby determining the communication quality of the same type of tasks corresponding to multiple cells in the same time period based on the same type of communication parameters. Further, the communication quality of N types of tasks corresponding to multiple cells in M time periods is determined.
  • the above is only an example of dividing the communication quality into three levels.
  • the communication quality can also be divided into multiple levels other than three. Its implementation is similar to the implementation of the above three levels. It only needs to ensure that the number of levels is less than or equal to the number of communication qualities of the same type of tasks in the same time period. It will not be repeated here.
  • the second device can determine the first information based on the communication parameters of the N types of tasks indicated by the second information in M time periods; since the first information includes multiple cell information, and the communication quality of the N types of tasks corresponding to each cell in the multiple cells in M time periods, the first device can directly select the cell to access from the first information, which can reduce the delay of cell access and improve the efficiency of cell access.
  • some tasks have a strong correlation with the remaining tasks. That is, the correlation between some tasks and the remaining tasks is greater than a first threshold.
  • the first threshold may be 95%.
  • the first threshold may be other values, without limitation.
  • the second device can determine the first information based on the communication parameters of N types of tasks indicated by the second information in M time periods respectively; and provide basic guarantee for the first device to determine the access cell based on the first information.
  • the cell access method further includes steps S305 to S308:
  • Step S305 is the same as the above step S303.
  • Step S305 is the same as the above step S303.
  • the multiple network devices respectively send the second information to the third device, and correspondingly, the third device receives the second information from the multiple network devices.
  • the third device sends the first information to the second device, and correspondingly, the second device receives the first information from the third device.
  • the communication quality of N types of tasks corresponding to the i-th cell can be understood as: the communication quality of each type of task in the N types of tasks of the i-th cell.
  • i 1, 2, ..., X, where X is the number of cells in the plurality of cells.
  • the first information is used to indicate multiple cell information and the communication quality of N types of tasks corresponding to the multiple cells. Therefore, the first device can select a cell to access based on its task type, and provide differentiated assistance for different tasks, thereby improving the quality of cell selection and user experience.
  • the first information is used to indicate information of multiple cells and communication qualities of the corresponding multiple cells in M time periods, respectively, wherein the multiple cells include a first cell and a second cell. That is, the first information is used to indicate information of the first cell and communication qualities of the corresponding first cell in M time periods, and to indicate information of the second cell and communication qualities of the corresponding second cell in M time periods.
  • step S302 may be replaced by: the first device determines to access the first cell or the second cell based on the first information and the time period to which the current moment belongs in the M time periods.
  • the first device can select one of the communication qualities of the time period to which the current moment belongs in the M time periods indicated by the first information based on the current moment, and determine to access the cell corresponding to the communication quality, for example, the communication quality can be the best communication quality among the communication qualities of the time period to which the current moment belongs.
  • the Communication Device Fig. 7 shows a schematic diagram of the structure of a communication device 700.
  • the communication device 700 includes a processing module 701 and a transceiver module 702.
  • the communication device 700 can be used to implement the functions of any one of the first device, the second device, or the third device.
  • the transceiver module 702 which may also be referred to as a transceiver unit, is used to implement the sending and/or receiving functions.
  • the transceiver module 702 may be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 702 is further used to send second information to the second device, where the second information includes communication parameters of N types of tasks in M time periods, respectively, and the communication parameters are used to determine the first information.
  • the processing module 701 is used to generate first information.
  • the transceiver module 702 is further configured to send second information to a third device.
  • the value of M corresponding to the first category of tasks is greater than the value of M corresponding to the second category of tasks
  • the degree to which the first category of tasks is affected by network quality is greater than the degree to which the second category of tasks is affected by network quality
  • N categories of tasks include the first category of tasks and the second category of tasks.
  • the function/implementation process of the transceiver module 702 can be implemented through the input and output interface (or communication interface) of the chip or the chip system, and the function/implementation process of the processing module 701 can be implemented through the processor (or processing circuit) of the chip or the chip system.
  • the processor 801, the transceiver 802, and the memory 803 may be connected via a communication bus.
  • the RF circuit and antenna may be arranged independently of the processor performing baseband processing.
  • the RF circuit and antenna may be arranged remotely from the communication device.
  • the communication device 700 may take the form of the communication device 800 shown in FIG. 8 .
  • the function/implementation process of the processing module 701 in FIG7 can be implemented by the processor 801 in the communication device 800 shown in FIG8 calling the computer execution instructions stored in the memory 803.
  • the function/implementation process of the transceiver module 702 in FIG7 can be implemented by the transceiver 802 in the communication device 800 shown in FIG8.
  • any one of the first device, the second device, or the third device in the present application may adopt the composition structure shown in Figure 9, or include the components shown in Figure 9.
  • Figure 9 is a schematic diagram of the composition of a communication device 900 provided by the present application, and the communication device 900 may be a terminal device or a chip or system on chip in the terminal device; or, it may be a module or a chip or a system on chip in any one of the first device, the second device, or the third device.
  • the communication bus 902 is used to connect different components in the communication device 900 so that the different components can communicate.
  • the communication bus 902 can 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 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • the communication interface 904 is used to communicate with other devices or communication networks.
  • the communication interface 904 can be a module, a circuit, a transceiver, or any device capable of implementing communication.
  • the communication interface 904 can also be an input/output interface located in the processor 901 to implement signal input and signal output of the processor.
  • the memory 903 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and/or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • CD-ROM compact disc read-only memory
  • optical disc storage including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage media or other magnetic storage devices etc.
  • the communication device further includes a memory.
  • the memory is used to store necessary computer programs and data.
  • the computer program may include instructions, and the processor may call the instructions in the computer program stored in the memory to instruct the communication device to execute the method in any of the above method embodiments.
  • the memory may not be in the communication device.
  • the communication device also includes an interface circuit, which is a code/data read/write interface circuit, which is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.
  • an interface circuit which is a code/data read/write interface circuit, which is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.
  • the present application also provides a computer-readable storage medium on which a computer program or instruction is stored.
  • a computer program or instruction is stored on which a computer program or instruction is stored.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the systems, devices and methods described in the present application can also be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, i.e., they may be located in one place, or they may be distributed over multiple network units.
  • the components shown as units may or may not be physical units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that a computer can access or may contain one or more servers, data centers and other data storage devices that can be integrated with the medium.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.
  • the computer may include the aforementioned device.

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

Abstract

L'invention concerne un procédé et un appareil d'accès à une cellule, prenant en charge des protocoles de la série des normes IEEE, tels que le protocole de la série des normes IEEE 802.11be/Wi-Fi 7/EHT, le protocole de la série des normes IEEE 802.11bn/UHR/Wi-Fi 8, le protocole de la série des normes IEEE 802.15/UWB, ou le protocole IEEE 802.11bf/protocole de détection/protocole compatible, et aptes à satisfaire aux exigences d'accès d'un dispositif terminal dans des scénarios de communication complexes. Le procédé comprend les étapes suivantes : un premier dispositif reçoit des premières informations en provenance d'un second dispositif, et détermine, sur la base des premières informations et d'un type de tâche courant du premier dispositif, d'accéder à une première cellule ou à une seconde cellule, les premières informations étant utilisées pour indiquer des premières informations de cellule, et la qualité de communication de N types de tâches correspondant à la première cellule respectivement dans M périodes de temps, et étant utilisées pour indiquer des secondes informations de cellule, et la qualité de communication de N types de tâches correspondant à la seconde cellule respectivement dans les M périodes de temps, M et N étant tous deux des nombres entiers positifs, et les N types de tâches comprenant le type de tâche courant.
PCT/CN2024/141620 2024-01-17 2024-12-23 Procédé et appareil d'accès à une cellule Pending WO2025152726A1 (fr)

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CN202410073593.8A CN120343665A (zh) 2024-01-17 2024-01-17 小区接入方法及装置
CN202410073593.8 2024-01-17

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CN112823545A (zh) * 2021-01-14 2021-05-18 北京小米移动软件有限公司 小区切换的方法、装置、通信设备及存储介质
CN114258098A (zh) * 2022-01-19 2022-03-29 Oppo广东移动通信有限公司 小区接入方法、装置、移动终端及存储介质
CN115334476A (zh) * 2022-07-20 2022-11-11 北京化工大学 面向周期性任务的星地协同车联网移动性管理方法及装置
US20220408334A1 (en) * 2021-06-21 2022-12-22 Dish Wireless L.L.C. Cellular network user device mobility optimization management

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112823545A (zh) * 2021-01-14 2021-05-18 北京小米移动软件有限公司 小区切换的方法、装置、通信设备及存储介质
US20220408334A1 (en) * 2021-06-21 2022-12-22 Dish Wireless L.L.C. Cellular network user device mobility optimization management
CN114258098A (zh) * 2022-01-19 2022-03-29 Oppo广东移动通信有限公司 小区接入方法、装置、移动终端及存储介质
CN115334476A (zh) * 2022-07-20 2022-11-11 北京化工大学 面向周期性任务的星地协同车联网移动性管理方法及装置

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