Method and apparatus for transmitting key service bearer, electronic device and storage medium

Abstract

The application discloses a method and device for delivering key service bearers, electronic equipment and a storage medium. The method comprises the following steps: when a PDU session is established or modified, DRB mapping is performed at the CU side, and a DRB list is formed according to a first preset bearing strategy; and the CU side delivers the mapped DRB list to the DU side through an F1 port. According to the embodiment of the application, when the PDU session is established or modified at the base station side, the DRB mapping is performed at the CU side, and the DRB list is formed according to the first preset bearing strategy. In the case that the number of cells that admit DRBs is limited and the physical resources of the cells are limited, the DU side admits the Non_GBR type or the key service that occurs more frequently when admitting DRBs, so that the success rate of the key service and the PDU session establishment / modification can be ensured.

Description

Technical Field

[0001] This invention relates to the field of mobile communications, and in particular to a method, apparatus, electronic device, and storage medium for transmitting critical service bearers in a 5G scenario. Background Technology

[0002] With the development of mobile communication technology, 5G (5th Generation) has come into view. Regarding the 5G RAN architecture, 3GPP (3rd Generation Partnership Project) has adopted the CU / DU (Central Unit / Distributed Unit) architecture scheme. The CU mainly handles non-real-time higher-layer radio protocol stack functions, while the DU mainly handles physical layer functions and layer 2 functions requiring real-time processing. The CU and DU complete signaling and data transmission through the F1 interface.

[0003] The protocol stipulates that each PDU session (PDU: Packet Data Unit) must have at least one default QoS Flow throughout its lifecycle, and this QoS Flow must be of Non-GBR type. If no such QoS Flow exists, the PDU session should not be successfully established or modified. Additionally, there is a type of QoS Flow that carries Additional QoS Flow Information, indicating that this QoS Flow occurs more frequently than other QoS Flows in the PDU session. Only Non-GBR type QoS Flows carry Additional QoS Flow Information.

[0004] The services of type Non_GBR and services carrying Additional QoS Flow Information cells mentioned above are referred to as critical services. Base stations should strive to ensure successful admission of such critical services. In situations with limited cell resources, failure to establish / admit such critical services may lead to PDU session admission failure, affecting the continuity of critical services and impacting user experience. Summary of the Invention

[0005] In view of this, the present invention provides a method, apparatus, electronic device and storage medium for transmitting critical service bearers in a 5G scenario, which enables priority to be given to critical services that occur more frequently when the number of DRBs accepted by a cell is limited and the cell's physical resources are limited, thereby ensuring the success rate of critical service and PDU session establishment / modification.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0007] According to one aspect of the present invention, a method for transmitting critical service bearers is provided, the method comprising:

[0008] When a PDU session is established / modified, DRB mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy.

[0009] The CU side transmits the mapped DRB list to the DU side via the F1 port.

[0010] According to another aspect of the present invention, a method for transmitting critical service bearers is provided, the method comprising:

[0011] When the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy.

[0012] The source side transmits the DRB list to the target side CU via the XN / NG port.

[0013] According to another aspect of the present invention, an apparatus for transmitting critical service bearers is provided, the apparatus comprising: a first generation module and a first transmission module; wherein:

[0014] The first generation module is used to perform DRB mapping on the CU side when a PDU session is established / modified, and to form a DRB list according to a first preset bearer strategy;

[0015] The first sending module is used by the CU side to transmit the mapped DRB list to the DU side through the F1 port.

[0016] According to another aspect of the present invention, an apparatus for transmitting critical service bearers is provided, the apparatus comprising: a second generation module and a second transmission module; wherein:

[0017] The second generation module is used to form a DRB list according to the second preset bearer strategy when the source side fills in PDU session information during terminal movement.

[0018] The second transmitting module is used to transmit the DRB list to the target CU via the XN / NG port from the source side.

[0019] According to another aspect of the present invention, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method for transmitting critical service bearers provided in the embodiments of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein a program for a method of delivering a critical service bearer is stored on the storage medium, and the program for delivering a critical service bearer is executed by a processor to implement the steps of the method for delivering a critical service bearer provided in the embodiments of the present invention.

[0021] Compared with related technologies, this invention proposes a method, apparatus, electronic device, and storage medium for transmitting critical service bearers in a 5G scenario. The method includes: performing DRB mapping on the CU side during PDU session establishment / modification, and forming a DRB list according to a first preset bearer strategy; the CU side transmits the mapped DRB list to the DU side through the F1 interface. Through this invention, by performing DRB mapping on the CU side during PDU session establishment / modification at the base station side and forming a DRB list according to the first preset bearer strategy, the DU side, when accepting DRBs, prioritizes accepting Non-GBR type or more frequently occurring critical services when the number of DRBs accepted by the cell is limited and cell physical resources are limited, thus ensuring the success rate of critical services and PDU session establishment / modification. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating a method for transmitting critical service bearers in a 5G scenario, as provided in an embodiment of the present invention.

[0023] Figure 2 This is a flowchart illustrating a method for transmitting critical service bearers in a 5G scenario, as provided in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of a device for transmitting critical service bearers in a 5G scenario, provided by an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of a device for transmitting critical service bearers in a 5G scenario, provided by an embodiment of the present invention.

[0026] Figure 5This is a flowchart illustrating a method for transmitting critical service bearers in a 5G scenario, as provided in an embodiment of the present invention.

[0027] Figure 6 This is a flowchart illustrating another method for transmitting critical service bearers in a 5G scenario provided by an embodiment of the present invention.

[0028] Figure 7 This is a flowchart illustrating another method for transmitting critical service bearers in a 5G scenario provided by an embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0034] In one embodiment, such as Figure 1 As shown, the present invention provides a method for transmitting critical service bearers in a 5G scenario, the method comprising:

[0035] S11. When a PDU session is established / modified, DRB (Data Radio Bearer) mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy.

[0036] S12, the CU side transmits the mapped DRB list and QoS Flow information to the DU side through the F1 port.

[0037] In this embodiment, when PDU session establishment / modification is performed on the base station side, DRB mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy. When the DU side accepts DRBs, under the condition that the number of DRBs accepted by the cell is limited and the cell physical resources are limited, priority is given to accepting Non_GBR type or more frequently occurring critical services, which can ensure the success rate of critical services and PDU session establishment / modification.

[0038] In one embodiment, step S11, which involves performing DRB mapping on the CU side and forming a DRB list according to a first preset bearer strategy, includes:

[0039] Identify DRBs containing critical business operations;

[0040] The DRBs containing critical services are carried according to the first preset carrying strategy, forming a DRB list.

[0041] In one embodiment, the first preset bearer strategy includes placing DRBs containing critical services at the top of the DRB list.

[0042] In step S11, the step of carrying DRBs containing critical services according to the first preset bearer strategy to form a DRB list includes: the CU side places the DRBs containing critical services at the beginning of the DRB list to form a DRB list.

[0043] In this embodiment, when establishing / modifying a PDU session on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services at the top of the DRB list to form a DRB list. When the DU side accepts DRBs, given the limited number of DRBs that can be accepted in a cell and the limited physical resources of the cell, it prioritizes accepting critical services of the Non_GBR type or those that occur more frequently, which can ensure the success rate of critical services and PDU session establishment / modification.

[0044] In one embodiment, the method further includes: the DU side accepting DRBs in the order of the DRB list transmitted by the CU side.

[0045] In this embodiment, when the DU side accepts DRBs, it prioritizes accepting more frequently occurring critical services. Given the limited number of DRBs that can be accepted in a cell and the limited physical resources of the cell, it can ensure the success rate of critical services and PDU session establishment / modification.

[0046] In one embodiment, the first preset bearer policy includes the CU side filling the Additional QoS Flow Information field with DRBs containing critical services; wherein the Additional QoS Flow Information field is added to the DRBs-ToBeSetup-Item information element of the F1 protocol.

[0047] In step S11, the step of carrying DRBs containing critical services according to the first preset bearer strategy to form a DRB list includes:

[0048] The CU side places DRBs containing critical services that carry the Additional QoS Flow Information field into the DRB list, forming the DRB list.

[0049] In this embodiment, when establishing / modifying a PDU session on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services that carry the Additional QoS Flow Information field into the DRB list, forming a DRB list. When the DU side accepts DRBs, given the limited number of DRBs that can be accepted by the cell and the limited physical resources of the cell, the DU side prioritizes accepting DRBs carrying Additional QoS Flow Information, which can ensure the success rate of critical services and PDU session establishment / modification.

[0050] In one embodiment, the method further includes: prioritizing the acceptance of DRBs carrying Additional QoS Flow Information on the DU side.

[0051] In this embodiment, when the DU side accepts a DRB, it prioritizes accepting DRBs carrying Additional QoS Flow Information. Under the circumstances that the number of DRBs accepted by the cell is limited and the cell's physical resources are limited, the success rate of establishing / modifying critical services and PDU sessions can be guaranteed.

[0052] In one embodiment, such as Figure 2 As shown, the present invention provides a method for transmitting critical service bearers in a 5G scenario, the method comprising:

[0053] S21. When the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy.

[0054] S22. The source side transmits the DRB list to the target side CU through the XN / NG port.

[0055] In this embodiment, when the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy. When the CU side accepts the source side PDU session, it directly accepts it in order, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0056] In one embodiment, in step S21, when the source side fills in the PDU session information, a DRB list is formed according to the second preset bearer strategy; including:

[0057] Identify DRBs containing critical business operations;

[0058] The DRB containing critical services is carried according to the second preset carrying strategy, forming a DRB list.

[0059] In one embodiment, the second preset bearer strategy includes placing DRBs containing critical services at the top of the DRB list.

[0060] In step S21, the step of carrying DRBs containing critical services according to the second preset bearer strategy to form a DRB list includes: when the source side fills in PDU session information, placing the DRBs containing critical services at the beginning of the DRB list to form a DRB list.

[0061] In this embodiment, when the terminal moves, the source side fills in the PDU session information and places the DRB containing critical services at the top of the DRB list to form a DRB list. When the CU side accepts the source side PDU session, it directly accepts it according to the order of the DRB list, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0062] In one embodiment, the method further includes: the target-side CU accepting DRBs in the order of the DRB list transmitted from the source side.

[0063] In this embodiment, when the terminal moves, the CU side accepts the source side PDU session directly according to the DRB list order, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0064] It should be noted that the above-described device embodiments and method embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the device embodiments, and will not be repeated here.

[0065] In one embodiment, such as Figure 3 As shown, the present invention provides an apparatus for transmitting critical service bearers in a 5G scenario, the apparatus comprising: a first generation module 111 and a first transmission module 112; wherein:

[0066] The first generation module 111 is used to perform DRB mapping on the CU side when the PDU session is established / modified, and form a DRB list according to the first preset bearer strategy;

[0067] The first sending module 112 is used by the CU side to transmit the mapped DRB list and QosFlow information to the DU side through the F1 port.

[0068] In this embodiment, when PDU session establishment / modification is performed on the base station side, DRB mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy. When the DU side accepts DRBs, under the condition that the number of DRBs accepted by the cell is limited and the cell physical resources are limited, priority is given to accepting Non_GBR type or more frequently occurring critical services, which can ensure the success rate of critical services and PDU session establishment / modification.

[0069] In one embodiment, the first generation module 111 is specifically used for:

[0070] Identify DRBs containing critical business operations;

[0071] The DRBs containing critical services are carried according to the first preset carrying strategy, forming a DRB list.

[0072] In one embodiment, the first preset bearer strategy includes placing DRBs containing critical services at the beginning of the DRB list. The first generation module 111 is used to place DRBs containing critical services at the beginning of the DRB list to form the DRB list.

[0073] In this embodiment, when PDU session establishment / modification is performed on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services at the top of the DRB list to form a DRB list. When the DU side accepts DRBs, it prioritizes accepting Non_GBR type or more frequently occurring critical services when the number of DRBs accepted in the cell is limited and the cell's physical resources are limited. This can ensure the success rate of critical services and PDU session establishment / modification.

[0074] In one embodiment, the first preset bearer policy includes the CU side filling the Additional QoS Flow Information field with DRBs containing critical services; wherein, the Additional QoS Flow Information field is added to the DRBs-ToBeSetup-Item information element of the F1 protocol. The first generation module 10 is used to place the DRBs containing critical services carrying the Additional QoS Flow Information field into the DRB list to form the DRB list.

[0075] In this embodiment, when establishing / modifying a PDU session on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services that carry the Additional QoS Flow Information field into the DRB list, forming a DRB list. When the DU side accepts DRBs, it prioritizes accepting DRBs carrying Additional QoS Flow Information. Under the condition that the number of DRBs accepted by the cell is limited and the cell's physical resources are limited, the success rate of critical services and PDU session establishment / modification can be guaranteed.

[0076] In one embodiment, such as Figure 4 As shown, the present invention provides an apparatus for transmitting critical service bearers in a 5G scenario, the apparatus comprising: a second generation module 211 and a second transmission module 212; wherein:

[0077] The second generation module 211 is used to form a DRB list according to the second preset bearer strategy when the source side fills in PDU session information during terminal movement.

[0078] The second sending module 212 is used to transmit the DRB list to the target CU through the XN / NG port on the source side.

[0079] In this embodiment, when the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy. When the CU side accepts the source side PDU session, it directly accepts it in order, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0080] In one embodiment, the second generation module 211 is specifically used for:

[0081] Identify DRBs containing critical business operations;

[0082] The DRB containing critical services is carried according to the second preset carrying strategy, forming a DRB list.

[0083] In one embodiment, the second preset bearer strategy includes placing DRBs containing critical services at the top of the DRB list. When the second generation module 211 fills in PDU session information on the source side, it places DRBs containing critical services at the top of the DRB list to form the DRB list.

[0084] In this embodiment, when the terminal moves, the source side fills in the PDU session information and places the DRB containing critical services at the top of the DRB list to form a DRB list. When the CU side accepts the source side PDU session, it directly accepts it according to the order of the DRB list, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0085] It should be noted that the above-described device embodiments and method embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the device embodiments, and will not be repeated here.

[0086] The technical solution of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0087] Example 1:

[0088] In this embodiment, as Figure 5 As shown, the terminal needs to create a new PDU session, requiring the creation of two new DRBs, DRB1 and DRB2, of type GBR, and one new DRB3 of type Non-GBR, with DRB3 being a critical service. The remaining resources of the DU-side cell can only accommodate one more DRB.

[0089] A method for transmitting critical service bearers in a 5G scenario, the method comprising:

[0090] S301. When a PDU session is established / modified, DRB mapping is performed on the CU side to identify DRBs containing critical services. DRB3 containing critical services is placed at the beginning of the DRB list, and DRB1 and DRB2 are placed at the end to form the DRB list.

[0091] S302, the CU side transmits the mapped DRB list and QoS Flow information to the DU side through the F1 port.

[0092] S303 and DU sides accept DRBs in sequence. Only DRB3 is accepted successfully, while DRB1 and DRB2 fail to be accepted. However, PDUsession is successfully established, ensuring the establishment of critical business processes.

[0093] In this embodiment, when establishing / modifying a PDU session on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services at the top of the DRB list to form a DRB list. When the DU side accepts DRBs, given the limited number of DRBs that can be accepted in a cell and the limited physical resources of the cell, it prioritizes accepting critical services of the Non_GBR type or those that occur more frequently, which can ensure the success rate of critical services and PDU session establishment / modification.

[0094] Example 2

[0095] In this embodiment, as Figure 6 As shown, the terminal needs to create a new PDU session, including a GBR type DRB1 and a Non-GBR type DRB2 with Additional QoS Flow Information cells. DRB2 is a critical service. The remaining resources of the DU-side cell can only accommodate one more DRB.

[0096] A method for transmitting critical service bearers in a 5G scenario, the method comprising:

[0097] S401. When establishing / modifying a PDU session, fill in the Additional QoS Flow Information element when filling in the DRBs-ToBeSetup-Item of DRB2 to form a DRB list.

[0098] S402, the CU side transmits the mapped DRB list and QoS Flow information to the DU side through the F1 port.

[0099] S403 and DU prioritize accepting DRB2. Only if DRB2 is successfully accepted will DRB1 fail to be accepted. However, the PDU session will be successfully established, ensuring the establishment of critical business processes.

[0100] In this embodiment, when establishing / modifying a PDU session on the base station side, DRB mapping is performed on the CU side. The CU side places DRBs containing critical services that carry the Additional QoS Flow Information field into the DRB list, forming a DRB list. When the DU side accepts DRBs, it prioritizes accepting DRBs carrying Additional QoS Flow Information. When the number of DRBs that can be accepted in a cell is limited and the cell's physical resources are limited, priority is given to accepting Non-GBR type or more frequently occurring critical services, which can ensure the success rate of critical services and PDU session establishment / modification.

[0101] Example 3

[0102] In this embodiment, as Figure 7 As shown, when a terminal performs mobility, it carries a PDU session. This PDU session carries a GBR type CRB and a Non-GBR type DRB2. The remaining resources of the target-side CU cell can only accommodate one more DRB.

[0103] A method for transmitting critical service bearers in a 5G scenario, the method comprising:

[0104] S501: When the source side fills in the switching bitstream, DRB2 is placed before DRB1 to form a DRB list.

[0105] S502, the source side transmits the DRB list to the target side CU through the XN / NG port.

[0106] S503: The target side accepts requests sequentially. DRB2 is accepted successfully, DRB1 is accepted but fails, and PDU session is accepted successfully, ensuring the establishment of critical business processes.

[0107] In this embodiment, when the terminal moves, the source side fills in the PDU session information and places the DRB containing critical services at the top of the DRB list to form a DRB list. When the CU side accepts the source side PDU session, it directly accepts it according to the order of the DRB list, which can ensure the priority establishment of critical services. When the number of DRBs accepted by the cell is limited and the cell physical resources are limited, the priority is given to accepting critical services of Non_GBR type or those that occur more frequently, which can ensure the continuity of critical services and improve the handover success rate.

[0108] Furthermore, embodiments of the present invention also provide an electronic device, such as... Figure 8 As shown, the electronic device 900 includes: a memory 902, a processor 901, and one or more computer programs stored in the memory 902 and executable on the processor 901. The memory 902 and the processor 901 are coupled together via a bus system 903. When the one or more computer programs are executed by the processor 901, they implement the following steps of a method for transmitting critical service bearers in a 5G scenario provided by an embodiment of the present invention:

[0109] S11. When a PDU session is established / modified, DRB mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy.

[0110] S12, the CU side transmits the mapped DRB list and QoS Flow information to the DU side through the F1 port.

[0111] or,

[0112] S21. When the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy.

[0113] S22. The source side transmits the DRB list to the target side CU through the XN / NG port.

[0114] The methods disclosed in the above embodiments of the present invention can be applied to the processor 901, or implemented by the processor 901. The processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 901 or by instructions in the form of software. The processor 901 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 901 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the memory 902. The processor 901 reads the information in the memory 902 and combines its hardware to complete the steps of the aforementioned method.

[0115] It is understood that the memory 902 in this embodiment of the invention can be a volatile memory or a non-volatile memory, or it can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory or other memory technologies, compact disk read-only memory (CD-ROM), digital video disk (DVD) or other optical disc storage, magnetic cartridges, magnetic tapes, disk storage or other magnetic storage devices; the volatile memory can be random access memory (RAM). By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM). Memory), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this invention are intended to include, but are not limited to, these and any other suitable types of memories.

[0116] It should be noted that the above-described electronic device embodiments and method embodiments belong to the same concept. For details of their implementation process, please refer to the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the electronic device embodiments, and will not be repeated here.

[0117] In addition, in an exemplary embodiment, the present invention also provides a computer storage medium, specifically a computer-readable storage medium, such as a memory 902 storing computer programs. The computer storage medium stores one or more programs for resolving terminal default paging DRX conflicts. When the processor 901 executes the one or more programs for resolving terminal default paging DRX conflicts, it implements the following steps of a method for transmitting critical service bearers in a 5G scenario provided by the present invention:

[0118] S11. When a PDU session is established / modified, DRB mapping is performed on the CU side, and a DRB list is formed according to the first preset bearer strategy.

[0119] S12, the CU side transmits the mapped DRB list and QoS Flow information to the DU side through the F1 port.

[0120] or,

[0121] S21. When the terminal moves, the source side fills in the PDU session information and forms a DRB list according to the second preset bearer strategy.

[0122] S22. The source side transmits the DRB list to the target side CU through the XN / NG port.

[0123] It should be noted that the above-mentioned method program embodiment for transmitting critical service bearers in a 5G scenario on a computer-readable storage medium belongs to the same concept as the method embodiment. The specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are all applicable to the above-mentioned computer-readable storage medium embodiment, which will not be repeated here.

[0124] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0125] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0126] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0127] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method of delivering a critical service bearer, characterized by, The method comprises: In the process of PDU session establishment or modification, DRB mapping is performed at the CU side, DRBs containing key services are identified, the DRBs containing key services are carried according to a first preset carrying strategy, and a DRB list is formed; The CU side transmits the mapped DRB list to the DU side through an F1 interface; The first preset carrying strategy comprises placing the DRBs containing key services at the front of the DRB list at the CU side, and the key services comprise necessary services for successfully establishing or modifying the PDU session or services with a frequency higher than a preset frequency.

2. The method of claim 1, wherein, The method further comprises: the DU side receiving the DRBs according to the order of the DRB list transmitted by the CU side.

3. The method of claim 1, wherein, The first preset carrying strategy comprises the CU side filling the DRBs containing key services in an Additional QoS Flow Information field; and the Additional QoS Flow Information field is added in a DRBs-ToBeSetup-Item information element of the F1 protocol. The method further comprises: The CU side places the DRBs containing key services carrying the Additional QoS Flow Information field in the DRB list, and forms the DRB list.

4. The method of claim 3, wherein, The method further comprises: the DU side preferentially receiving the DRBs carrying the Additional QoS Flow Information.

5. A method of delivering a critical service bearer, characterized by, The method comprises: In the process of terminal movement, the source side fills PDU session information, identifies DRBs containing key services, carries the DRBs containing key services according to a second preset carrying strategy, and forms a DRB list; The source side transmits the DRB list to the target side CU through an XN / NG interface; The second preset carrying strategy comprises placing the DRBs containing key services at the front of the DRB list when the source side fills the PDU session information, and the key services comprise necessary services for successfully establishing or modifying the PDU session or services with a frequency higher than a preset frequency.

6. The method of claim 5, wherein, The method further comprises: the target side CU receiving the DRBs according to the order of the DRB list transmitted by the source side.

7. An apparatus for delivering critical service bearers, the apparatus comprising: The device is applied to the method for transmitting key service carrying according to any one of claims 1 to 4, and the device comprises a first generation module and a first sending module; wherein: The first generation module is configured to perform DRB mapping at the CU side in the process of PDU session establishment or modification, identify DRBs containing key services, carry the DRBs containing key services according to a first preset carrying strategy, and form a DRB list; The first sending module is configured to transmit the mapped DRB list to the DU side through an F1 interface at the CU side; The first preset carrying strategy comprises placing the DRBs containing key services at the front of the DRB list at the CU side, and the key services comprise necessary services for successfully establishing or modifying the PDU session or services with a frequency higher than a preset frequency. The first preset carrying strategy comprises placing DRBs containing key services at the front of a DRB list on the CU side, the key services including services that are necessary for successfully establishing or modifying a PDU session or services that occur at a frequency higher than a preset frequency.

8. An apparatus for delivering a critical service bearer, characterized by comprising: The device is applied to the method for carrying key services according to any one of claims 5 to 6, and the device comprises a second generation module and a second sending module. The second generation module is configured to identify DRBs containing key services when filling in PDU session information on the source side during terminal movement, and carry the DRBs containing key services according to a second preset carrying strategy to form a DRB list. The second sending module is configured to transmit the DRB list to a target side CU through an XN / NG interface on the source side. The second preset carrying strategy comprises placing DRBs containing key services at the front of a DRB list when filling in PDU session information on the source side, the key services including services that are necessary for successfully establishing or modifying a PDU session or services that occur at a frequency higher than a preset frequency.

9. An electronic device, comprising: Comprise: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to implement the steps of the method for carrying key services according to any one of claims 1 to 6.

10. A storage medium, characterized by The storage medium stores a program of the method for carrying key services, and the program of the method for carrying key services is executed by the processor to implement the steps of the method for carrying key services according to any one of claims 1 to 6.

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