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WO2025209151A1 - Procédé et appareil de traitement d'identifiant de cellule physique - Google Patents

Procédé et appareil de traitement d'identifiant de cellule physique

Info

Publication number
WO2025209151A1
WO2025209151A1 PCT/CN2025/082543 CN2025082543W WO2025209151A1 WO 2025209151 A1 WO2025209151 A1 WO 2025209151A1 CN 2025082543 W CN2025082543 W CN 2025082543W WO 2025209151 A1 WO2025209151 A1 WO 2025209151A1
Authority
WO
WIPO (PCT)
Prior art keywords
network function
pci
base station
network
cell
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/CN2025/082543
Other languages
English (en)
Chinese (zh)
Inventor
吴立臣
张大钧
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.)
Datang Mobile Communications Equipment Co Ltd
Original Assignee
Datang Mobile Communications Equipment 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 Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Publication of WO2025209151A1 publication Critical patent/WO2025209151A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method and device for processing a physical cell identifier.
  • PCIs Physical Cell Identifiers
  • a base station integrated architecture
  • CU centralized unit
  • OFAM Operation and Maintenance
  • RAN Radio Access Network
  • the present disclosure aims to provide a method and apparatus for processing a physical cell identifier (PCI) to solve the problem in related arts that a PCI optimization method is difficult to adapt to a service-oriented RAN architecture.
  • PCI physical cell identifier
  • the present disclosure provides a method for processing a physical cell identifier, which is performed by a first network function in a service-oriented network architecture of a radio access network (RAN).
  • the method includes:
  • PCI physical cell identifier
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the method of the embodiments of the present disclosure further includes at least one of the following:
  • the first network function includes a public network function, and the first network function stores a neighboring cell relationship, and the second network function includes a base station or a network function within a base station.
  • the method of the present disclosure further includes:
  • Neighboring cell information is sent to a first network function, where the first network function is a network function in a servitized RAN network architecture.
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • sending the neighbor information to the first network function includes at least one of the following:
  • the fourth network function in the first base station sends neighboring cell information to the first network function, where the neighboring cell information is obtained after the fourth network function instructs the terminal to perform neighboring cell detection;
  • the fifth network function sends neighboring cell information to the first network function.
  • the first network function includes a public network function
  • the first network function stores the neighboring area relationship of the base station
  • the second network function includes the base station or a network function within the base station.
  • the method of the present disclosure further includes:
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the processor further implements at least one of the following:
  • the processor further implements the following steps:
  • the saved neighbor relationship is updated according to the neighbor relationship change notification and/or the PCI change notification.
  • the processor further implements the following steps:
  • the PCI is reconfigured for the cell where the PCI conflicts, is confused or interfered.
  • the processor further implements the following steps:
  • PCI list allocated by OAM a new PCI is selected for the cell where the PCI conflicts, is confused, or interferes.
  • the embodiment of the present disclosure further provides a physical cell identity processing device, which is applied to a second network function and includes a memory, a transceiver, and a processor;
  • a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • Neighboring cell information is sent to a first network function, where the first network function is a network function in a servitized RAN network architecture.
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the processor further implements at least one of the following:
  • the neighboring cell information is sent to the first network function through the fifth network function in the second base station.
  • the present disclosure also provides a device for processing a physical cell identifier, including:
  • a first acquiring unit configured to acquire physical cell identifier (PCI) information of a neighboring cell according to at least one of neighboring cell information sent by a second network function and a stored neighboring cell relationship, where the second network function is a network function in a network architecture after RAN service-oriented service;
  • PCI physical cell identifier
  • a processing unit is configured to, when detecting that a conflict, confusion, or interference occurs in a cell PCI based on the PCI information of the neighboring cell, perform a PCI reallocation process or send a report to the operation and maintenance OAM, wherein the report is used to instruct the OAM to reallocate the PCI for the cell where the PCI conflict, confusion, or interference occurs.
  • the present disclosure also provides a device for processing a physical cell identifier, including:
  • a first network function in a network architecture after RAN service-based operation obtains physical cell identifier (PCI) information of a neighboring cell based on at least one of neighboring cell information and stored neighboring cell relationships sent by a second network function, where the second network function is a network function in the network architecture after RAN service-based operation.
  • PCI physical cell identifier
  • a PCI reallocation process is performed or a report is sent to an operation and maintenance (OAM) to instruct the OAM to reallocate the PCI for the cell in which the PCI conflict, confusion, or interference occurs.
  • OAM operation and maintenance
  • FIG2 shows a flow chart of a method for processing a physical cell identifier according to an embodiment of the present disclosure
  • FIG4 shows a second interactive diagram of the method for processing a physical cell identifier according to an embodiment of the present disclosure
  • the term "and/or” describes the relationship between associated objects, indicating that three possible relationships exist.
  • a and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • the term “plurality” refers to two or more, and other quantifiers are similar.
  • PCI Physical Cell Identifier
  • OFAM Operation and Maintenance
  • the PCIs of adjacent cells or neighboring cells of the same cell must meet certain constraints, and neighboring cell relationships are generated and maintained through OAM or the automatic neighboring cell relationship process.
  • PCI conflicts or confusions may occur due to omissions, mismatches, mobility, or automatic identification failures.
  • a base station integrated architecture
  • CU split architecture
  • the OAM or base station reallocates a suitable PCI for the NR cell based on the PCI allocation method used.
  • 5G NR PCI supports up to 1008 PCIs.
  • OAM OMA-based advanced designator
  • PCI collision Adjacent cells cannot be assigned the same PCI
  • PCI confusion Two adjacent cells in the same cell cannot be assigned the same PCI
  • the UE should not receive multiple PCIs of the following modes simultaneously: Mode 3, Mode 4, Mode 30.
  • NCT Neighbor Cell Relation Table
  • ANR Automatic Neighbor Cell Relation Function
  • OAM assigns a PCI to each NR cell of the gNB, and the gNB selects this value as the PCI of the NR cell;
  • OAM assigns a PCI list to each NR cell of the gNB, and the gNB selects a PCI value from the list.
  • the gNB controls the PCI list and removes PCIs reported by the UE, reported by neighboring gNBs via the Xn interface, and/or obtained through other methods (e.g., through downlink over-the-air detection).
  • OAM allocates a PCI list for each NR cell and sends it to the gNB-CU. If the gNB-CU detects a PCI conflict, it reselects a PCI value from the pre-configured list and sends it to the gNB-DU through the F1 establishment process or the gNB-CU configuration update process.
  • RAN service-oriented development involves transforming traditional functions into service-oriented functions (NFs) to provide distinct services.
  • NFs service-oriented functions
  • RAN service-oriented development requires simultaneous adjustments or redefinition of RAN architecture-related functions during PCI optimization.
  • the service-oriented RAN architecture is different from the current integrated base station or the base station with a CU/DU separated architecture. Especially when RAN service-oriented architecture reaches the stage of traditional functional separation, the PCI allocation and optimization methods in related technologies cannot be simply mapped to the service-oriented architecture. They need to be adjusted and adapted according to the characteristics of RAN service-oriented architecture. However, the existing RAN service-oriented solutions do not propose PCI optimization methods that are adapted to RAN service-oriented architecture.
  • an embodiment of the present disclosure provides a method for processing a physical cell identifier, which is performed by a first network function in a service-oriented network architecture of a radio access network (RAN).
  • the method includes:
  • the above-mentioned first network function may be a network function within the RAN, such as a network function within a base station, or may be a network function outside the RAN, that is, a public network function.
  • the second network function may be a network function within the RAN or a network function outside the RAN, such as a public network function.
  • the above-mentioned neighboring cell information refers to the information of the neighboring cells of a cell, and the information may include the identifier of the neighboring cell (such as PCI), and may also include the frequency, scrambling code, etc. of the neighboring cell.
  • the neighbor relationship mentioned above refers to information used to indicate the relationship between cells.
  • the neighbor relationship can be managed and stored in the base station or OAM or a newly added network function.
  • the PCI reallocation process includes:
  • the PCI is reconfigured for the cell where the PCI conflicts, is confused or interfered.
  • the PCI configuration rules include the PCIs available to each base station and rules for automatically allocating or reallocating the PCIs.
  • the PCI optimization function is implemented based on a public network function outside the base station.
  • Example 1 Different NFs collaborate to implement PCI optimization related functions in a base station after RAN service transformation.
  • neighbor cell detection and PCI conflict or confusion monitoring are implemented in different NFs of the base station.
  • neighbor cell detection is implemented in the radio connection control function
  • PCI conflict or confusion monitoring is implemented in the radio network management function.
  • the radio connection control function and the radio network function are different NFs in the base station after the RAN service is transformed. These NFs have other functions in addition to the PCI optimization function.
  • PCI optimization-related functions are described as being located in different NFs.
  • the NF names are only examples and are not limited.
  • Step 1 The radio connection control function (ie, the second network function) of base station 1 instructs each UE to measure neighboring cell information.
  • Step 2 The radio network management function of base station 1 (i.e., the first network function) and the radio network management functions of other base stations (i.e., the second network functions) dynamically exchange neighboring cell information through an initial information exchange process or a configuration update process.
  • Step 3 The wireless connection control function of base station 1 reports the detected neighboring cell information to the wireless network management function of base station 1.
  • step 2 there is no restriction on the order of step 2 and step 3.
  • Step 4 The wireless network management function of base station 1 automatically monitors PCI conflicts, confusion, and interference based on the obtained neighboring cell information and stored neighboring cell relationships.
  • Step 5 If the radio network management function of base station 1 detects a PCI conflict, confusion, or interference, it performs PCI reallocation and/or reports to the OAM, ultimately allocating a suitable new PCI to the PCI conflicting, confusing, or interfering cell of base station 1.
  • the OAM assigns a new PCI to the PCI conflicting, confusing, or interfering cell of base station 1.
  • the radio network management function of base station 1 reselects a PCI value for the PCI conflicting, confusing, or interfering cell from a preconfigured list assigned by the OAM.
  • Example 2 After the RAN service is transformed, different NFs are used in the base station to implement conflict, confusion, and interference monitoring respectively;
  • the wireless connection control function and the wireless network management function both have PCI optimization related functions, that is, when the wireless connection control function detects PCI conflict, confusion and interference, it can directly execute the PCI reallocation process instead of having to go through the wireless network management function.
  • Step 4 The wireless network management function of base station 1 automatically monitors PCI conflicts, confusion, and interference based on the obtained neighboring cell information and stored neighboring cell relationships.
  • Example 3 After the RAN is service-oriented, the co-located NF implements the PCI optimization process related functions;
  • an embodiment of the present disclosure further provides a method for processing a physical cell identifier, which is performed by a second network function in a service-oriented network architecture of a radio access network RAN.
  • the method includes:
  • Step 801 Send neighboring cell information to a first network function, where the first network function is a network function in a network architecture after RAN serviceization.
  • the second network function may be a network function within the RAN or a network function outside the RAN, such as a public network function.
  • the above-mentioned neighboring cell information refers to the information of the neighboring cells of a cell, and the information may include the identifier of the neighboring cell (such as PCI), and may also include the frequency, scrambling code, etc. of the neighboring cell.
  • the neighbor relationship mentioned above refers to information used to indicate the relationship between cells.
  • the neighbor relationship can be managed and stored in the base station or OAM or a newly added network function.
  • the first network function can obtain the neighboring cell's physical cell identifier (PCI) information based on the neighboring cell information sent by the second network function. If a conflict, confusion, or interference is detected based on the neighboring cell's PCI information, the first network function can perform a PCI reallocation process or send a report to the Operation and Maintenance (OAM) system.
  • PCI processing operations are adapted for different network functions in the RAN service-oriented network architecture. Through the cooperation or collaboration of different network functions, PCI optimization in the RAN service-oriented network architecture can be achieved.
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the third network function may be a wireless network management function in the first base station
  • the fourth network function may be a wireless connection control function in the first base station
  • the fifth network function may be a wireless network management function in the second base station.
  • sending the neighbor information to the first network function includes at least one of the following:
  • the first network function includes a public network function, and the first network function stores a neighboring cell relationship, and the second network function includes a base station or a network function within a base station.
  • the method for processing the physical cell identifier executed by the second network function is a method corresponding to the method for processing the physical cell identifier executed by the above-mentioned first network function.
  • the specific interaction process between the two has been described in detail in the embodiment of the first network function side and will not be repeated here.
  • an embodiment of the present disclosure further provides a physical cell identity processing device, which is applied to a first network function or a second network function, and includes a memory 920 , a transceiver 900 , and a processor 910 ;
  • the memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor;
  • the processor 910 is configured to read the computer program in the memory and perform the following operations:
  • PCI physical cell identifier
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the processor further implements at least one of the following:
  • the first network function includes a public network function, and the first network function stores a neighboring cell relationship, and the second network function includes a base station or a network function within a base station.
  • the processor further implements the following steps:
  • the saved neighbor relationship is updated according to the neighbor relationship change notification and/or the PCI change notification.
  • the processor further implements the following steps:
  • the processor further implements the following steps:
  • the PCI is reconfigured for the cell where the PCI conflicts, is confused or interfered.
  • the processor further implements the following steps:
  • PCI list allocated by OAM a new PCI is selected for the cell where the PCI conflicts, is confused, or interferes.
  • the processor 910 is configured to read the computer program in the memory and perform the following operations:
  • the first network function includes a third network function in the first base station
  • the second network function includes at least one of a fourth network function in the first base station and a fifth network function in the second base station.
  • the first sending unit is configured to perform at least one of the following:
  • the apparatus of the present disclosure further includes:
  • the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned embodiment of the method for processing the physical cell identifier applied to the second network function, and can achieve the same technical effect.
  • the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.
  • the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used.
  • the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit.
  • the aforementioned integrated units may be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program code.
  • a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute all steps implemented in the method embodiment for implementing the above-mentioned first network function execution or all steps implemented in the method embodiment for implementing the second network function execution, and can achieve the same technical effects.
  • the parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be specifically described here.
  • the embodiment of the present disclosure also provides a computer program product, including computer instructions.
  • the computer instructions are executed by a processor, the various processes of the above-mentioned physical cell identification processing method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not repeated here.
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem.
  • the name of the terminal device may also be different.
  • the terminal device may be called a user equipment (UE).
  • the wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN).
  • CN core networks
  • RAN radio access network
  • the wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device.
  • it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and/or data with the radio access network.
  • the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a femto base station, a pico base station, etc., but is not limited in the embodiments of the present disclosure.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated.
  • Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission.
  • MIMO transmission can be either Single User MIMO (SU-MIMO) or Multi User MIMO (MU-MIMO).
  • SU-MIMO Single User MIMO
  • MU-MIMO Multi User MIMO
  • MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.
  • a computer-usable storage media including but not limited to magnetic disk storage and optical storage, etc.
  • These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • each component or each step can be decomposed and/or recombined.
  • These decompositions and/or recombinations should be regarded as equivalent schemes of the present invention.
  • the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other.
  • modules can be fully or partially integrated into one physical entity, or they can be physically separated.
  • these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware.
  • a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device.
  • each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs).
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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

Abstract

La présente divulgation concerne un procédé et un appareil de traitement d'un identifiant de cellule physique (PCI). Le procédé dans les modes de réalisation de la présente divulgation comprend les étapes suivantes : sur la base d'informations de cellule voisine envoyées par une seconde fonction de réseau et/ou d'une relation de cellule voisine stockée, acquisition d'informations PCI d'une cellule voisine, la seconde fonction de réseau étant une fonction de réseau dans une architecture RAN basée sur un service ; et lorsqu'il est détecté sur la base des informations PCI de la cellule voisine qu'un conflit, une confusion ou un brouillage s'est produit dans un PCI d'une cellule, exécution d'un processus de réattribution de PCI ou envoi d'un rapport à un service d'exploitation et de maintenance (OAM), le rapport étant utilisé pour ordonner à l'OAM de réattribuer un PCI à la cellule dans laquelle le conflit, la confusion ou le brouillage s'est produit dans le PCI.
PCT/CN2025/082543 2024-04-03 2025-03-14 Procédé et appareil de traitement d'identifiant de cellule physique Pending WO2025209151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410400581.1A CN120786436A (zh) 2024-04-03 2024-04-03 物理小区标识的处理方法及装置
CN202410400581.1 2024-04-03

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WO2025209151A1 true WO2025209151A1 (fr) 2025-10-09

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