CN111095984A

CN111095984A - Method, terminal equipment and network equipment for data transmission

Info

Publication number: CN111095984A
Application number: CN201880058432.4A
Authority: CN
Inventors: 唐海; 刘建华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-12-26
Filing date: 2018-07-16
Publication date: 2020-05-01
Anticipated expiration: 2038-07-16
Also published as: CN111095984B; WO2019127038A1; WO2019127877A1; WO2019128159A1

Abstract

The embodiment of the application discloses a method, terminal equipment and network equipment for data transmission, wherein the method comprises the following steps: the terminal equipment establishes and/or binds the PDU session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating a group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter for establishing and/or binding the PDU session, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter comprises at least one value. The method, the terminal equipment and the network equipment in the embodiment of the application are beneficial to saving and flexibly using the URSP strategy space.

Description

Method, terminal equipment and network equipment for data transmission

The application claims the priority of the PCT applications with the application numbers PCT/CN2017/118724, PCT application number "method for data transmission, terminal device and network device" filed in 26.12.2017, chinese patent office filed in 13.2.2018, PCT application number PCT/CN2018/076668, PCT application number "method for data transmission, terminal device and network device" filed in 25.6.2018, PCT application number PCT/CN2018/092694 filed in 25.6.2018, PCT application number "method for data transmission, terminal device and network device", which are all incorporated in the present application by reference.

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a method, a terminal device, and a network device for data transmission.

Background

Currently, a user equipment path Selection Policy (UE Route Selection Policy, URSP) is introduced in a 5th-Generation (5G) mobile communication technology architecture, wherein, for a terminal device, there is only one URSP, there may be multiple rules in the URSP, each rule may include a path Selection descriptor (RSD), and the RSD is used to list a set of parameter combinations for performing establishment and/or binding of a Protocol Data Unit (PDU) session, whereas in the current URSP Policy, each parameter may have several optional values, which may result in more RSD Data, which is not favorable for saving and flexible use of the URSP Policy space.

Disclosure of Invention

In view of this, embodiments of the present application provide a method, a terminal device, and a network device for data transmission, which are beneficial to saving and flexibly using a URSP policy space.

In a first aspect, a method for data transmission is provided, the method comprising: the terminal equipment establishes and/or binds the PDU session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating a group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter for establishing and/or binding the PDU session, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter comprises at least one value.

In a second aspect, a method for data transmission is provided, the method comprising: the network equipment configures a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for the terminal equipment, wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating one group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter for establishing and/or binding a PDU session, the at least one index corresponds to the at least one parameter in a one-to-one mode, and each parameter comprises at least one value.

In a third aspect, a method for data transmission is provided, the method comprising: the terminal equipment establishes and/or binds a Protocol Data Unit (PDU) session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy (URSP), wherein the path selection descriptor table comprises a path selection descriptor identification which is used for adding, updating or deleting the content in the path selection descriptor table.

In a fourth aspect, a method for data transmission is provided, the method comprising: the network device configures a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for the terminal device, wherein the path selection descriptor table comprises a path selection descriptor identifier, and the path selection descriptor identifier is used for adding, updating or deleting contents in the path selection descriptor table.

In a fifth aspect, a terminal device is provided, configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

A sixth aspect provides a network device for performing the method of the second aspect or any possible implementation manner of the second aspect. In particular, the network device comprises means for performing the method of the second aspect described above or any possible implementation of the second aspect.

In a seventh aspect, a terminal device is provided, configured to perform the method in the third aspect or any possible implementation manner of the third aspect. In particular, the terminal device comprises means for performing the method of the third aspect or any possible implementation manner of the third aspect.

In an eighth aspect, a network device is provided for performing the method of the fourth aspect or any possible implementation manner of the fourth aspect. In particular, the network device comprises means for performing the method of the fourth aspect described above or any possible implementation manner of the fourth aspect.

In a ninth aspect, a terminal device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a tenth aspect, there is provided a network device, comprising: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the second aspect or any possible implementation manner of the second aspect.

In an eleventh aspect, there is provided a terminal device, including: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the third aspect or any possible implementation manner of the third aspect.

In a twelfth aspect, a network device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the fourth aspect or any possible implementation manner of the fourth aspect.

In a thirteenth aspect, a method for data transmission is provided, the method comprising: when the data streams described by the filter descriptor of each rule in the multiple rules in the path selection policy URSP of the user equipment are overlapped, the terminal equipment determines the rule used by the data stream of the overlapped part from the multiple rules according to the priorities of the multiple rules.

In a fourteenth aspect, a terminal device is provided for performing the method of the thirteenth aspect or any possible implementation manner of the thirteenth aspect. In particular, the terminal device comprises means for performing the method in any possible implementation of the thirteenth aspect or the thirteenth aspect described above.

In a fifteenth aspect, a terminal device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is used for storing instructions, and the processor is used for executing the instructions stored by the memory to perform the method of the thirteenth aspect or any possible implementation manner of the thirteenth aspect.

In a sixteenth aspect, a method for data transmission is provided, comprising: and the terminal equipment adds a new parameter combination list or updates the parameter combination list in the URSP rule of the path selection strategy of the user equipment according to the preferred parameter combination list of the terminal equipment, wherein one parameter combination in the parameter combination list is used for establishing and/or modifying the Protocol Data Unit (PDU) session.

A seventeenth aspect provides a terminal device configured to perform the method of the sixteenth aspect or its implementations.

Specifically, the terminal device includes functional modules for executing the method in the sixteenth aspect or its various implementation manners.

In an eighteenth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the sixteenth aspect or each implementation manner thereof.

By the technical scheme, a new parameter combination list is added or updated in the URSP rule in combination with the parameter combination list preferred by the terminal equipment, so that the success and flexibility of PDU session establishment can be improved.

In a nineteenth aspect, a method for data transmission is provided, comprising: and the terminal equipment adds a new parameter combination list or updates the parameter combination list in the URSP rule of the path selection strategy of the user equipment according to the preferred parameter combination list of the terminal equipment, wherein one parameter combination in the parameter combination list is used for establishing and/or modifying the Protocol Data Unit (PDU) session.

A twentieth aspect provides a terminal device for executing the method of the nineteenth aspect or the implementation manners thereof.

Specifically, the terminal device includes functional modules for executing the method in the nineteenth aspect or the implementations thereof.

In a twenty-first aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the nineteenth aspect or the implementation modes thereof.

A twenty-second aspect provides a chip for implementing the method in any one of the first to fourth aspects or implementations thereof, or for implementing the method in the thirteenth aspect or implementations thereof, or for implementing the method in the sixteenth aspect or implementations thereof, or for implementing the method in the nineteenth aspect or implementations thereof.

Specifically, the chip includes: a processor configured to call and run a computer program from a memory, so that a device in which the chip is installed executes a method according to any one of the first aspect to the fourth aspect or implementations thereof, or according to the thirteenth aspect or implementations thereof, or according to the sixteenth aspect or implementations thereof, or according to the nineteenth aspect or implementations thereof.

In a twenty-third aspect, there is provided a computer storage medium storing a computer program for executing the method of the first aspect or any possible implementation manner of the first aspect, or a method in any possible implementation of the second aspect or the second aspect described above, or a method in any possible implementation of the third aspect or the third aspect described above, or computer software instructions for a method in any possible implementation of the fourth aspect or the fourth aspect described above, or for a method in any possible implementation of the thirteenth aspect or the thirteenth aspect described above, which comprises a program designed to carry out the aspects described above, or a method as described in the thirteenth aspect or implementations thereof, or a method as in the sixteenth aspect or implementations thereof, or a method as in the nineteenth aspect or implementations thereof, as described above.

A twenty-fourth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any of the alternative implementations of the first aspect, or the method of the second aspect or any of the alternative implementations of the second aspect, or the method of the third aspect or any of the possible implementations of the fourth aspect, or the method of the fourth aspect or any of the possible implementations of the fourth aspect, or the method of the thirteenth aspect or any of the possible implementations of the thirteenth aspect, or the method of the thirteenth aspect or each of the implementations thereof, or the method of the sixteenth aspect or each of the implementations thereof, or the method of the nineteenth aspect or each of the implementations thereof.

A twenty-fifth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to fourth aspects or implementations thereof described above, or the method of the thirteenth aspect or implementations thereof described above, or the method of the sixteenth aspect or implementations thereof described above, or the method of the nineteenth aspect or implementations thereof described above.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

Fig. 1 is a schematic diagram illustrating an application scenario according to an embodiment of the present application.

Fig. 2 shows a schematic block diagram of a method for data transmission according to an embodiment of the present application.

Fig. 3 shows another schematic block diagram of a method for data transmission according to an embodiment of the present application.

Fig. 4 shows yet another schematic block diagram of a method for data transmission of an embodiment of the present application.

Fig. 5 shows yet another schematic block diagram of a method for data transmission of an embodiment of the present application.

Fig. 6 shows a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 7 shows a schematic block diagram of a network device of an embodiment of the application.

Fig. 8 shows another schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 shows another schematic block diagram of a network device of an embodiment of the application.

Fig. 10 shows a further schematic block diagram of a terminal device of an embodiment of the application.

Fig. 11 shows yet another schematic block diagram of a network device of an embodiment of the present application.

Fig. 12 shows a further schematic block diagram of a terminal device of an embodiment of the application.

Fig. 13 shows yet another schematic block diagram of a network device of an embodiment of the present application.

Fig. 14 shows yet another schematic block diagram of a method for data transmission of an embodiment of the present application.

Fig. 15 shows still another schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 16 shows a further schematic block diagram of a terminal device of an embodiment of the present application.

Fig. 17 shows yet another schematic block diagram of a method for data transmission of an embodiment of the present application.

Fig. 18 shows a further schematic block diagram of a terminal device of an embodiment of the present application.

Fig. 19 shows a further schematic block diagram of a terminal device of an embodiment of the present application.

Fig. 20 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 21 is a schematic block diagram of a communication system according to an embodiment of the present application.

Fig. 22 shows yet another schematic block diagram of a method for data transmission of an embodiment of the present application.

Fig. 23 shows still another schematic block diagram of a terminal device of an embodiment of the present application.

Fig. 24 shows still another schematic block diagram of a terminal device of an embodiment of the present application.

Fig. 25 is a schematic block diagram of a chip provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), an LTE System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a New Radio (NR), a future 5G System, or the like.

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal Multiple Access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, and certainly the SCMA system and the LDS system may also be called other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a Multi-Carrier transmission system using a non-Orthogonal multiple access technology, for example, an Orthogonal Frequency Division Multiplexing (OFDM) using a non-Orthogonal multiple access technology, a Filter Bank Multi-Carrier (FBMC), a General Frequency Division Multiplexing (GFDM), a Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) system, and the like.

Fig. 1 illustrates a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include an access network device 110. Access network device 110 may be a device that communicates with terminal devices. Access network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Alternatively, the Access Network device 110 may be a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Access Network device may be a relay station, an Access point, a vehicle-mounted device, a wearable device, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like. Optionally, the Access Network device 110 may also be a base station in an LTE system, for example, an Evolved Universal Radio Access Network (E-UTRAN) device.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the access network device 110. The terminal device 120 may be mobile or stationary. Alternatively, terminal Equipment 120 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc.

The wireless communication system 100 also includes a core network device 130 in communication with the access network device. Alternatively, the core network device 130 may be a 5G core network device, such as an Access and Mobility Management Function (AMF), and a Session Management Function (SMF). Optionally, the Core network device 130 may also be an Evolved Packet Core (EPC) device of the LTE network, for example, a Session Management Function + Core Packet Gateway (SMF + PGW-C) device on the Core network side.

It is understood that SMF + PGW-C may perform the functions that SMF and PGW-C can perform simultaneously.

Optionally, in this embodiment of the present application, the AMF may perform information interaction with the SMF, for example, the SMF obtains some information of the radio access network side from the AMF.

Optionally, in this embodiment of the present application, the AMF may acquire a fallback identifier from the radio access network, or obtain a message indicating that the first bearer/flow for the terminal device is not successfully established.

Fig. 1 exemplarily shows one access network device, one core network device, and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of access network devices and may include other numbers of terminal devices within the coverage area of each access network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include a Mobile Management Entity (MME), a Unified Data Management (UDM), an Authentication Server Function (AUSF), a User Plane Function (UPF), a Signaling Gateway (SGW), and other network entities, which are not limited in this embodiment of the present invention.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 2 shows a schematic block diagram of a method 200 for data transmission of an embodiment of the application. The terminal device shown in fig. 2 may be the terminal device shown in fig. 1, and the network device shown in fig. 2 may be the core network device shown in fig. 1. The method 200 includes some or all of the following:

s210, the terminal device establishes and/or binds a Protocol Data Unit (PDU) session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy (URSP), wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combination in the at least one group of index combinations comprises at least one index, each group of index combination is used for indicating a group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter used for establishing and/or binding the PDU session, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter comprises at least one value.

URSP is currently introduced in the 5G architecture, and the URSP policy specifies the routing policy of the UE for different data stream filters. For the UE, there is only one URSP, and there may be multiple rules in the URSP, where the rules in the URSP may include, but are not limited to, data stream descriptors (Traffic descriptors), Application identifiers (Application identifiers), Internet Protocol (IP) descriptors (descriptors), non-IP descriptors (non-IP descriptors), and path Selection descriptors (RSD). Each rule may also have a different priority value. Wherein the RSD table includes, but is not limited to, values including at least one parameter for establishing and/or binding a Protocol Data Unit (PDU) session, such as: session and service continuity mode, Network Slice Assistance Information (NSSAI), Data Network Name (DNN), non-seamless offload indication, and radio access type. Each parameter may include at least one value. The parameter combination in the embodiment of the present application may refer to a combination of values of various parameters, for example, session and service continuity mode 1, NSSAI _1, DNN _1, non-seamless forking indication as allowed and radio access type as third Generation Partnership Project (3 GPP) as one parameter combination, session and service continuity mode 1, NSSAI _2, DNN _3, non-seamless forking indication as allowed and radio access type as third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) as another parameter combination. In the embodiment of the present application, all values of each parameter may be first expressed by indexes, for example, the session and service continuity mode has three values, the session and service continuity mode 1 is expressed by index 1, the session and service continuity mode 2 is expressed by index 2, and the session and service continuity mode 3 is expressed by index 3. Then the parameter combination may be indicated by the index combination. For example, the index set is [ 2; 1; 2; 1; 1], assume that the parameters represented by each index in the index combination in left-to-right order are: session and service continuity mode, NSSAI, DNN, non-seamless offload indication, and radio access type. Then the index combination [ 2; 1; 2; 1; 1] is a combination of session and service continuity mode 2, NSSAI _1, DNN _2, non-seamless forking indication as allowed, and radio access type 3 GPP. In this embodiment, at least one index combination may be added to the RSD table, and the terminal device may perform the establishment and/or binding of the PDU session according to a parameter value in a parameter combination indicated by the at least one index combination.

Therefore, the method of the embodiment of the application is beneficial to saving and flexibly using the URSP strategy space.

Optionally, in this embodiment of the present application, the establishing and/or binding a PDU session by the terminal device according to a path selection descriptor table corresponding to a first rule in a path selection policy URSP of the user equipment includes: the terminal equipment determines a first index combination from the at least one group of index combinations; and the terminal equipment establishes and/or binds the PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.

Specifically, the terminal device may select one index combination from at least one index combination, and perform the establishment and/or binding of the PDU session by using the parameter value of the parameter combination indicated by the selected index combination. A priority may also be assigned to each set of index combinations in the RSD table, e.g., three sets of index combinations are included in the RSD table, [ 1; 2; 4; 2; 1 and 2; 1; 2; 1; 1] and [ 2; 5; 1; 1; 2], wherein [ 1; 2; 4; 2; 1] has a priority of 1, [ 2; 1; 2; 1; 1] has a priority of 2, [ 2; 5; 1; 1; 2] has a priority of 3. The terminal equipment can select one group of index combination from the three groups of index combinations according to the priority, and establish and/or bind the PDU session according to the value of the parameter combination indicated by the index combination.

Optionally, in an embodiment of the present application, the path selection descriptor table includes at least one first identifier, where the at least one first identifier is used to identify the at least one index combination in a one-to-one correspondence, and the first identifier is used to indicate a priority used by the index combination.

Further, each group of index combinations may be assigned an identifier representing a priority of each group of index combinations. For example, [ 1; 2; 4; 2; 1] is 1, [ 2; 1; 2; 1; 1] is identified as 2 and [ 2; 5; 1; 1; 2] is identified as 3. The ratio of [ 1; 2; 4; 2; 1] indicates a priority of 1, [ 2; 1; 2; 1; the designation 2 of 1 represents a priority of 2, [ 2; 5; 1; 1; the designation 3 of 2 represents a priority of 3.

Optionally, in this embodiment of the present application, the path selection descriptor table may further include at least one value of each parameter. Further, each of the parameters may further include a plurality of values having a priority order, and the index corresponding to each of the parameters indicates the priority of the plurality of values of the corresponding parameter.

Optionally, in an embodiment of the present application, the method further includes: and under the condition that none of the parameter combinations indicated by the at least one index combination meets the requirements, the terminal equipment establishes and/or binds the PDU session according to the priority of the multiple values of each parameter.

As mentioned above, each parameter used for setting up and/or binding a PDU session may include at least one value, and a column may be added to the RSD table to fill in at least one value of each parameter. That is, several values of the session and service continuity mode, such as session and service continuity mode 1, session and service continuity mode 2, and session and service continuity mode 3, may be added to the row of session and service continuity mode in the added column. And the priority of multiple values of each parameter can also be agreed, when all index combinations in the RSD table do not meet the requirement or the RSD table does not include index combinations, the terminal device can directly establish and/or bind the PDU session according to the multiple values of the added parameters in the RSD table. Further, when multiple values of a certain parameter have priorities, the PDU session can be established and/or bound according to the priorities of the multiple values of the parameter.

Optionally, in an embodiment of the present application, the method further includes: the terminal equipment receives first indication information sent by network equipment, wherein the first indication information is used for indicating at least one of the following conditions: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.

In this embodiment, the network device may instruct to update a certain rule in the URSP policy, and specifically, the network device may instruct the terminal device to add a group of index combinations in the RSD table, delete a group of index combinations in the RSD table, or update a group of index combinations in the RSD table to a group of index combinations not included in the RSD table. For example, the network device may notify the terminal device to add, delete, or update the index combination through the first identifier. By updating by indexing without updating specific parameter values, further flexible use of the URSP policy may be achieved.

Optionally, in this embodiment of the present application, the path selection descriptor table further includes a path selection descriptor identifier, where the path selection descriptor RSD identifier is used to add, update, or delete content in the path selection descriptor table.

Further, the terminal device may further receive second indication information sent by the network device, where the second indication information is used to indicate that the content in the path descriptor table is added, updated, or deleted.

It should be understood that, in the embodiment of the present application, the RSD table may be identical to the existing RSD table, or may be different from the existing RSD table in structure and/or content, but may have the same function as the existing RSD table. The embodiments of the present application should not be limited thereto.

The network device may configure one RSD identifier for each RSD table, and when the network device wants to update the content of the RSD table stored in the current terminal device, the network device may issue the RSD identifier of the target RSD table to the terminal device, and the terminal device may update the content of the stored RSD table to the content of the RSD table corresponding to the target RSD identifier sent by the network device.

By introducing the RSD identification, the terminal device can be instructed in the network to selectively add, update or delete one or more RSDs in the same rule without updating the whole rule.

Fig. 3 shows a schematic block diagram of a method 300 for data transmission of an embodiment of the application. As shown in fig. 3, the method 300 includes some or all of the following:

s310, the network device configures a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for the terminal device, wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating one group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter for establishing and/or binding a PDU session, the at least one index corresponds to the at least one parameter in a one-to-one manner, and each parameter comprises at least one value.

Optionally, in an embodiment of the present application, the method further includes: the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating at least one of the following conditions: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.

Optionally, in this embodiment of the present application, the at least one group of index combinations includes a plurality of groups of index combinations, and the path selection descriptor table further includes priorities used by the plurality of groups of index combinations.

Optionally, in this embodiment of the present application, the path selection descriptor table further includes at least one value of each parameter.

Optionally, in this embodiment of the present application, each of the parameters includes a plurality of values having a priority order, and the index corresponding to each of the parameters is used to indicate the priority of the plurality of values of the corresponding parameter.

Optionally, in this embodiment of the present application, the path selection descriptor table further includes a path selection descriptor identifier, where the path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.

Optionally, in an embodiment of the present application, the method further includes: the terminal device receives second indication information sent by the network device, wherein the second indication information is used for indicating that the content in the path descriptor table is added, updated or deleted.

Optionally, in an embodiment of the present application, the at least one parameter includes at least one of the following parameters: session or service continuity mode, data network name, network slice assistance information, non-seamless offload indication, and radio access type.

It should be understood that the interaction between the network device and the terminal device described by the network device and the related characteristics, functions, etc. correspond to the related characteristics, functions of the terminal device. And the related contents have been described in detail in the

above methods

200 and 300, and are not described herein again for brevity.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Fig. 4 shows a schematic block diagram of a method 400 for data transmission of an embodiment of the application. As shown in fig. 4, the method 400 includes some or all of the following:

s410, the terminal device establishes and/or binds a Protocol Data Unit (PDU) session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection strategy (URSP), wherein the path selection descriptor table comprises a path selection descriptor identification which is used for adding, updating or deleting the content in the path selection descriptor table.

Optionally, in this embodiment of the present application, the path selection descriptor table further includes at least one value for each of at least one parameter used for establishing and/or binding a PDU session.

Optionally, in this embodiment of the present application, each of the parameters includes a plurality of values having a priority order.

Optionally, in an embodiment of the present application, the method further includes: the terminal equipment receives indication information sent by the network equipment, wherein the indication information is used for indicating that the content in the path selection descriptor table is updated.

Fig. 5 shows a schematic block diagram of a method 500 for data transmission of an embodiment of the application. As shown in fig. 5, the method 500 includes some or all of the following:

s510, the network device configures a path selection descriptor table corresponding to a first rule in the user equipment path selection policy URSP for the terminal device, wherein the path selection descriptor table comprises path selection descriptor identifications, and the path selection descriptor identifications are used for adding, updating or deleting contents in the path selection descriptor table.

Optionally, in an embodiment of the present application, the path selection descriptor table further includes at least one value for each of at least one parameter used for establishing and/or binding a protocol data unit PDU session.

It should be understood that the interaction between the network device and the terminal device described by the network device and the related characteristics, functions, etc. correspond to the related characteristics, functions of the terminal device. And the related contents have been described in detail in the above method 200, and are not described herein again for brevity.

Having described the method for data transmission according to the embodiment of the present application in detail, the apparatus for data transmission according to the embodiment of the present application will be described below with reference to fig. 6 to 13, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 6 shows a schematic block diagram of a terminal device 600 of an embodiment of the present application. As shown in fig. 6, the terminal apparatus 600 includes:

a processing unit 610, configured to establish and/or bind a PDU session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, where the path selection descriptor table includes at least one group of index combinations, each group of index combinations in the at least one group of index combinations includes at least one index, each group of index combinations is used to indicate a group of parameter combinations, each parameter combination includes a value of each parameter in at least one parameter used to establish and/or bind the PDU session, the at least one index corresponds to the at least one parameter in a one-to-one manner, and each parameter includes at least one value.

Therefore, the terminal device of the embodiment of the application is beneficial to saving and flexibly using the URSP strategy space.

Optionally, in this embodiment of the present application, the processing unit is specifically configured to: determining a first index combination from the at least one group of index combinations; and establishing and/or binding the PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.

Optionally, in this embodiment of the present application, the at least one group of index combinations includes a plurality of groups of index combinations, the path selection descriptor table further includes priorities used by the plurality of groups of index combinations, and the determining, by the processing unit, a first index combination from the at least one group of index combinations includes: the first index combination is determined from the plurality of groups of index combinations according to the priority.

Optionally, in an embodiment of the present application, the processing unit is further configured to: and under the condition that none of the parameter combinations indicated by the at least one index combination meets the requirements, the terminal equipment establishes and/or binds the PDU session according to the priority of the multiple values of each parameter.

Optionally, in this embodiment of the present application, the terminal device further includes: a receiving unit, configured to receive first indication information sent by a network device, where the first indication information is used to indicate at least one of the following situations: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.

Optionally, in this embodiment of the present application, the terminal device further includes: and the receiving unit is used for receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating that the content in the path descriptor table is added, updated or deleted.

It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 600 are respectively for implementing the corresponding flow of the terminal device in the method of fig. 2, and are not described herein again for brevity.

Fig. 7 shows a schematic block diagram of a network device 700 of an embodiment of the application. As shown in fig. 7, the network device 700 includes:

a configuring unit 710, configured to configure, for the terminal device, a path selection descriptor table corresponding to a first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes at least one group of index combinations, each group of index combinations in the at least one group of index combinations includes at least one index, each group of index combinations is used to indicate a group of parameter combinations, each parameter combination includes a value of each parameter in at least one parameter used to establish and/or bind a PDU session, the at least one index corresponds to the at least one parameter in a one-to-one manner, and each parameter includes at least one value.

Therefore, the network device of the embodiment of the application is beneficial to saving and flexibly using the URSP policy space.

Optionally, in this embodiment of the present application, the network device further includes: a sending unit, configured to send first indication information to the terminal device, where the first indication information is used to indicate at least one of the following situations: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.

Optionally, in this embodiment of the present application, the network device further includes: a sending unit, configured to send second indication information to the terminal device, where the second indication information is used to indicate that the content in the path selection descriptor table is added, updated, or deleted.

It should be understood that the network device 700 according to the embodiment of the present application may correspond to a network device in an embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 700 are respectively for implementing a corresponding flow of the network device in the method of fig. 3, and are not described herein again for brevity.

Fig. 8 shows a schematic block diagram of a terminal device 800 of an embodiment of the application. As shown in fig. 8, the terminal apparatus 800 includes:

a processing unit 810, configured to establish and/or bind a PDU session according to a path selection descriptor table corresponding to a first rule in the ue path selection policy URSP, where the path selection descriptor table includes a path selection descriptor id, and the path selection descriptor id is used to add, update, or delete content in the path selection descriptor table.

Optionally, in this embodiment of the present application, the terminal device further includes: and the receiving unit is used for receiving indication information sent by the network equipment, wherein the indication information is used for indicating that the content in the path selection descriptor table is updated.

It should be understood that the terminal device 800 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 800 are respectively for implementing the corresponding flow of the terminal device in the method of fig. 4, and are not described herein again for brevity.

Fig. 9 shows a schematic block diagram of a network device 900 of an embodiment of the application. As shown in fig. 9, the network device 900 includes:

a configuring unit 910, configured to configure, for the terminal device, a path selection descriptor table corresponding to a first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, and the path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.

Optionally, in this embodiment of the present application, the network device further includes: and a sending unit, configured to send indication information to the terminal device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.

It should be understood that the network device 900 according to the embodiment of the present application may correspond to a terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 900 are respectively for implementing a corresponding flow of the terminal device in the method of fig. 5, and are not described herein again for brevity.

As shown in fig. 10, the present embodiment also provides a terminal device 1000, where the terminal device 1000 may be the terminal device 600 in fig. 6, and can be used to execute the content of the terminal device corresponding to the method 200 in fig. 2. The terminal device 1000 includes: an input interface 1010, an output interface 1020, a processor 1030, and a memory 1040, the input interface 1010, the output interface 1020, the processor 1030, and the memory 1040 being connectable via a bus system. The memory 1040 is used to store programs, instructions or code. The processor 1030 is configured to execute the programs, instructions or codes in the memory 1040 to control the input interface 1010 to receive signals, control the output interface 1020 to transmit signals, and perform the operations in the foregoing method embodiments.

In a specific embodiment, the receiving unit in the terminal device 600 can be implemented by the input interface 1010 in fig. 10. The processing unit in the terminal device 600 may be implemented by the processor 1030 in fig. 10.

As shown in fig. 11, an embodiment of the present application further provides a network device 2000, where the network device 2000 may be the network device 700 in fig. 7, which can be used to execute the content of the network device corresponding to the method 300 in fig. 3. The network device 2000 includes: the input interface 2010, the output interface 2020, the processor 2030 and the memory 2040 may be connected by a bus system. The memory 2040 is used to store programs, instructions or code. The processor 2030 is configured to execute the programs, instructions or codes in the memory 2040 to control the input interface 2010 to receive signals, control the output interface 2020 to transmit signals, and perform the operations of the foregoing method embodiments.

In a specific embodiment, the sending unit in the network device 700 may be implemented by the output interface 2020 in fig. 11, and the configuration unit in the network device 700 may be implemented by the processor 2030 in fig. 11.

As shown in fig. 12, the present embodiment also provides a terminal device 3000, where the terminal device 3000 may be the terminal device 800 in fig. 8, which can be used to execute the content of the terminal device corresponding to the method 400 in fig. 4. This terminal device 3000 includes: an input interface 3010, an output interface 3020, a processor 3030, and a memory 3040, and the input interface 3010, the output interface 3020, the processor 3030, and the memory 3040 may be connected by a bus system. The memory 3040 is used to store programs, instructions, or code. The processor 3030 is configured to execute programs, instructions or codes in the memory 3040 to control the input interface 3010 to receive signals, control the output interface 3020 to send signals, and perform the operations in the foregoing method embodiments.

In a specific embodiment, the receiving unit in the terminal device 800 may be implemented by the input interface 3010 in fig. 12. The processing unit in the terminal device 800 may be implemented by the processor 3030 in fig. 12.

As shown in fig. 13, an embodiment of the present application further provides a network device 4000, where the network device 4000 may be the network device 900 in fig. 9, which can be used to execute the content of the network device corresponding to the method 500 in fig. 5. The network device 4000 includes: an input interface 4010, an output interface 4020, a processor 4030, and a memory 4040, and the input interface 4010, the output interface 4020, the processor 4030, and the memory 4040 may be connected by a bus system. The memory 4040 is used to store programs, instructions or code. The processor 4030 is configured to execute the program, instructions or code in the memory 4040 to control the input interface 4010 to receive signals, control the output interface 4020 to transmit signals, and perform the operations in the foregoing method embodiments.

In a specific embodiment, the sending unit in the network device 900 may be implemented by the output interface 4020 in fig. 13, and the configuring unit in the network device 900 may be implemented by the processor 4030 in fig. 13.

Fig. 14 shows a schematic block diagram of a method 5000 for data transmission. As shown in fig. 14, the method 5000 includes:

s5010, when the data streams described by the filter descriptor of each of the rules in the user equipment path selection policy URSP overlap, the terminal equipment determines the rule used by the data stream of the overlapping portion from the rules according to the priorities of the rules.

For example, the filter descriptor of the first rule in the URSP describes the data stream with IP addresses of 192.168.1.01-192.168.1.50, and the filter descriptor of the second rule in the URSP describes the data stream with IP addresses of 192.168.1.40-192.168.1.80, then the part of the data stream with IP addresses of 192.168.1.40-192.168.1.50 is overlapped, and whether the part of the data stream is the first rule or the second rule at last is selected according to the priorities of the first rule and the second rule. It should be understood that the embodiments of the present application should not be limited to overlapping of data streams described by two regular filter descriptors, and may also overlap data streams described by a plurality of regular filter descriptors, and may be partially overlapping or fully overlapping, and the embodiments of the present application should not be limited thereto.

Therefore, the method of the embodiment of the application can solve the conflict when the data streams described by the filter descriptors of a plurality of rules are overlapped.

Optionally, in this embodiment of the present application, the determining, by the terminal device, a rule used by the data stream of the overlapping portion from the multiple rules according to the priorities of the multiple rules includes: the terminal device determines a rule with the highest priority among the plurality of rules as a rule used by the data flow of the overlapping portion.

Specifically, the terminal device may determine a rule with the highest priority among the plurality of rules as a rule used for the data flow in the overlapping portion, and the terminal device may also determine a rule with the second highest priority as a rule used for the data flow in the overlapping portion when the rule with the highest priority among the plurality of rules is not applicable. The embodiments of the present application do not limit this.

Fig. 15 shows a schematic block diagram of a terminal device 6000. As shown in fig. 15, the terminal device 6000 includes:

a determining unit 6010, configured to, when data streams described by the filter descriptor of each of a plurality of rules in the ue path selection policy URSP overlap, determine, according to priorities of the plurality of rules, a rule used by a data stream in an overlapping portion from the plurality of rules.

Therefore, the terminal device of the embodiment of the application can solve the conflict when the data streams described by the filter descriptors of a plurality of rules are overlapped.

Optionally, in this embodiment of the application, the determining unit is specifically configured to: and determining the rule with the highest priority in the plurality of rules as the rule used by the data flow of the overlapping part.

It should be understood that the terminal device 6000 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 6000 are respectively for implementing the corresponding flow of the terminal device in the method of fig. 14, and are not described herein again for brevity.

As shown in fig. 16, the embodiment of the present application further provides a terminal device 7000, where the terminal device 7000 may be the terminal device 6000 in fig. 15, and can be used to execute the content of the terminal device corresponding to the method 5000 in fig. 14. The terminal device 7000 includes: an input interface 7010, an output interface 7020, a processor 7030, and a memory 7040, the input interface 7010, the output interface 7020, the processor 7030, and the memory 7040 may be connected by a bus system. The memory 7040 is used to store programs, instructions or code. The processor 7030 is configured to execute the programs, instructions or codes in the memory 7040 to control the input interface 7010 to receive signals, the output interface 7020 to send signals, and the operations of the foregoing method embodiments.

In a specific embodiment, the processing unit in the terminal device 6000 can be implemented by the processor 7030 in fig. 16.

Fig. 17 shows a schematic block diagram of a method 10 for data transmission according to an embodiment of the present application. As shown in fig. 17, the method 10 includes some or all of the following:

s11, the terminal device adds a new parameter combination list or updates a parameter combination list in the URSP rule according to the parameter combination list preferred by the terminal device, where one parameter combination in the parameter combination list is used for establishing and/or modifying a PDU session.

URSP is currently introduced in the 5G architecture, and the URSP rules specify the routing policies of the UE for different data stream filters. For the UE, there is only one URSP rule, and the URSP rule may include, but is not limited to, a data stream descriptor (Traffic descriptor), Application identifiers (applications identifiers), an Internet Protocol (IP) descriptor (descriptors), non-IP descriptors (non-IP descriptors), a Route Selection Descriptor (RSD), and the like. The URSP rule may further comprise a plurality of parameter combination lists, which may be RSDs, for example, and a parameter combination list may comprise a plurality of parameters, and each parameter may comprise at least one value, and combining one value of each parameter in the parameter combination list constitutes a parameter combination, that is, the parameter combination list may have a plurality of parameter combinations. One parameter combination in the parameter combination list may be used to establish the PDU session. The parameters in the parameter combination list may include, but are not limited to, at least one of the following parameters: a Session and Service Continuity (SSC) pattern, Single Network Slice Assistance Information (NSSAI), a Data Network Name (DNN), a Non-seamless Offload indication (Non-seamless Offload indication), an Access Type (Access Type preference), and a PDU Session Type. It should be noted that, for convenience of description, the RSD is used as an example in many places in the parameter combination list, but may be a name that may be used in a future standard, as long as the function of the parameter combination list is the same as or similar to that in the embodiment of the present application. The parameter combination list of the embodiment of the present application can be shown in table 1.

TABLE 1

Parameter(s)	Value of
Session and service continuity mode	SSC-2
Single network slicing assistance information	S-NSSAI_1,S-NSSAI_2
Data network name	DNN_1,DNN_2
Non-seamless split flow indication	Is that
Type of wireless access	3GPP

The entirety of table 1 may be a parameter combination list, SSC-2 in table 1; S-NSSAI _ 1; DNN _ 1; is that; 3GPP can be combined into one parameter combination that can be used for PDU session establishment and/or modification.

In the embodiment of the present application, there may be a preferred parameter combination list, i.e. a user reference, inside the terminal device, as shown in table 2, and the values of the parameters in table 2 are the parameter values of the user's preference.

TABLE 2

Parameter(s)	Value of
Session and service continuity mode	SSC-1
Single network slicing assistance information	S-NSSAI_3
Data network name	DNN_3
Non-seamless split flow indication	Is that
Type of wireless access	non-3GPP

Alternatively, the terminal device may add a new parameter combination list in the URSP rule according to the preferred parameter combination list. For example, there are RSD-1, RSD-2, RSD-3 in the URSP rule, and the terminal device may add RSD-4 in the URSP rule in combination with the list of preferred parameter combinations.

Optionally, the terminal device may further update one parameter combination list in the URSP rule according to the preferred parameter combination list, for example, RSD-1, RSD-2, and RSD-3 exist in the URSP rule, and the terminal device may update RSD-1 in the URSP rule to RSD-4 in combination with the preferred parameter combination list.

Therefore, the method for data transmission according to the embodiment of the present application, in combination with the parameter combination list preferred by the terminal device, adds a new parameter combination list in the URSP rule, and can improve the success and flexibility of PDU session establishment.

Optionally, in this embodiment of the present application, the adding, by the terminal device, a new parameter combination list in the URSP rule of the path selection policy of the user equipment according to the parameter combination list preferred by the terminal device includes: and the terminal equipment forms a second parameter combination list according to the parameter combination list preferred by the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule, wherein the second parameter combination list is the new parameter combination list.

That is, the terminal device may generate a new parameter combination list according to the preferred parameter combination list and the parameter combination list selected by the network device. For example, it can be generated as follows: the terminal device may add a value of at least one parameter in the parameter combination list preferred by the terminal device to a corresponding parameter in the parameter combination list selected by the network device, and/or replace the value of at least one parameter in the parameter combination list selected by the network device with a value of a corresponding parameter in the parameter combination list preferred by the terminal device, and combine them to form the second parameter combination list.

Optionally, in this embodiment of the present application, the adding, by the terminal device, a new parameter combination list in the URSP rule of the path selection policy of the user equipment according to the parameter combination list preferred by the terminal device includes: the terminal equipment forms a second parameter combination list according to the parameter combination list preferred by the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule; and updating the first parameter combination list into the second parameter combination list.

That is, the terminal device may generate a new parameter combination list according to the preferred parameter combination list and the parameter combination list selected by the network device, and update the parameter combination list selected by the network device to the new parameter combination list. The manner of generating the new parameter combination list by the terminal device may be similar to that described above, and is not described herein again.

The following describes in detail how to generate a new parameter combination list in the embodiments of the present application through several embodiments.

Example 1: assuming that the parameter combination list preferred by the terminal device is shown in table 2 and the parameter combination list selected by the network device from the URSP rules is shown in table 1, the new parameter combination list is shown in table 3, and the generation process may be as follows: the value DNN _3 for the data network name in table 2 is added to the data network name in table 1 and the value 3GPP for the radio access type in table 2 is added to the radio access type in table 1, i.e. the new parameter combination list, table 3, comprises DNN _3, DNN _1, DNN _2 and the radio access type comprises non-3GPP, compared to the network selected parameter combination list, table 1.

TABLE 3

Parameter(s)	Value of
Session and service continuity mode	SSC-2
Single network slicing assistance information	S-NSSAI_1,S-NSSAI_2
Data network name	DNN_3,DNN_1,DNN_2
Non-seamless split flow indication	Is that
Type of wireless access	non-3GPP,3GPP

Example 2: assuming that the parameter combination list preferred by the terminal device is shown in table 2 and the parameter combination list selected by the network device from the URSP rules is shown in table 1, the new parameter combination list is shown in table 4, and the generation process may be as follows: the values DNN _1 and DNN _2 of the data network name in table 1 are replaced by the value DNN _3 of the data network name in table 2, and the value non-3GPP of the radio access type in table 1 is replaced by the value 3GPP of the radio access type in table 2, that is, the value of the data network name is DNN _3 and the value of the radio access type is non-3GPP, compared with the parameter combination list selected by the network, that is, table 1, in the new parameter combination list, that is, table 3.

TABLE 4

Parameter(s)	Value of
Session and service continuity mode	SSC-2
Single network slicing assistance information	S-NSSAI_1,S-NSSAI_2
Data network name	DNN_3
Non-seamless split flow indication	Is that
Type of wireless access	non-3GPP

Example 3: assuming that the list of the parameter combinations preferred by the terminal device is shown in table 2 and the list of the parameter combinations selected by the network device from the URSP rules is shown in table 1, the new list of the parameter combinations is shown in table 5, and the generation process may be as follows: the values DNN _1, DNN _2 of the data network name in table 1 are replaced by the value DNN _3 of the data network name in table 2 and the value 3GPP of the radio access type in table 2 is added to the radio access type in table 1, i.e. the value of the data network name is DNN _3 and the value of the radio access type comprises non-3GPP, compared to the parameter combination list of the network selection, table 1, table 3, the new parameter combination list, table 3.

TABLE 5

Parameter(s)	Value of
Session and service continuity mode	SSC-2
Single network slicing assistance information	S-NSSAI_1,S-NSSAI_2
Data network name	DNN_3
Non-seamless split flow indication	Is that
Type of wireless access	non-3GPP,3GPP

The above is described by taking the example of adding or replacing DNN and radio access type RAT, and values of other parameters may be added or replaced. Alternatively, the values of the two parameters SSC and/or S-NSSAI may not be modified when generating the new parameter combination list, i.e., the two parameter values in the new parameter combination list are the same as the values in the parameter combination list selected by the network device, and are not replaced or added.

Example 4: after generating each new parameter combination list, the terminal device may directly use the new parameter combination list to replace the parameter combination list selected by the network device, for example, any one of the parameter combination lists in tables 3 to 5 may be used to replace table 1.

The parameter combination list may include other parameters, such as PDU session type, in addition to the above five parameters.

Optionally, in this embodiment of the present application, a value of a first parameter in the parameter combination list preferred by the terminal device has a higher priority in the second parameter combination list than a value of the first parameter in the first parameter combination list.

For adding the value of a certain parameter in the parameter combination list preferred by the terminal device to the corresponding parameter in the parameter combination list selected by the network device, the priority of the value of the parameter in the parameter combination list preferred by the terminal device is highest among all values of the parameter in the new parameter combination list. Taking table 3 in the above-described embodiment 1 as an example, for DNN in table 3, since DNN _3 is a value of DNN in the parameter combination list preferred by the terminal device, DNN _3 has higher priority than DNN _1 and DNN _ 2. That is, when the terminal device is conducting a PDU session, and the new parameter combination list is selected, one parameter combination including DNN _3 may be preferentially selected from the new parameter combination list. It should be understood that multiple values of DNN may also have priority for the list of parameter combinations selected by the network device.

Optionally, in this embodiment of the present application, the first parameter combination list is selected based on a priority of the parameter combination list in the URSP rule.

Optionally, in this embodiment of the present application, the second parameter combination list has a higher priority than the first parameter combination list.

For example, it is assumed that there are parameter combination list 1, parameter combination list 2, and parameter combination list 3 in the URSP rule, and that parameter combination list 1 has a higher priority than parameter combination list 2, and parameter combination list 2 has a higher priority than parameter combination list 3. The network device may preferentially select the parameter combination list 1 and the terminal device and generate a new parameter combination list 4 based on the parameter combination list 1 and the parameter combination list preferred by the terminal device. The priority of the parameter combination list 4 can be higher than that of the parameter combination lists 1-3. That is, after generating a new parameter combination list 4, the terminal device may first select one parameter combination in the parameter combination list 4 for the establishment and/or modification of the PDU session, if there are multiple parameter combinations in the parameter combination list 4, when one parameter combination in the parameter combination list 4 does not satisfy the requirement, the terminal device may select another parameter combination in the parameter combination list 4, and when all parameter combinations in the parameter combination list 4 do not satisfy the requirement, the terminal device may select the parameter combination in the parameter combination list 1 again for the establishment and/or modification of the PDU session. When all the parameter combinations in the parameter combination list 1 do not meet the requirements, the terminal device may select the parameter combinations in the parameter combination list 2 again for the establishment and/or modification of the PDU session, and so on.

For another example, it is assumed that there are parameter combination list 1, parameter combination list 2, and parameter combination list 3 in the URSP rule, and that parameter combination list 1 has a higher priority than parameter combination list 2, and parameter combination list 2 has a higher priority than parameter combination list 3. The network device may preferentially select the parameter combination list 1 and the terminal device and generate a new parameter combination list 4 based on the parameter combination list 1 and the parameter combination list preferred by the terminal device. Wherein the parameter combination list 4 has a higher priority than the parameter combination list 1. That is, after generating a new parameter combination list 4, the terminal device may first select one parameter combination in the parameter combination list 4 for the establishment of the PDU session, if there are multiple parameter combinations in the parameter combination list 4, when one parameter combination in the parameter combination list 4 does not meet the requirement, the terminal device may select another parameter combination in the parameter combination list 4, and when all parameter combinations in the parameter combination list 4 do not meet the requirement, the terminal device may select the parameter combination in the parameter combination list 1 again for the establishment and/or modification of the PDU session. When all the parameter combinations in the parameter combination list 1 do not satisfy the requirements, the terminal device may generate a new parameter combination list 5 based on the parameter combination list 2 and the parameter combination list preferred by the terminal device, wherein the parameter combination list 5 has a higher priority than the parameter combination list 2, and wherein, after a new parameter combination list 5 is generated, the terminal device may first select one of the parameter combinations in the parameter combination list 5 for the establishment and/or modification of a PDU session, if the parameter combination list 5 has a plurality of parameter combinations, when one of the parameter combinations in the parameter combination list 5 does not satisfy the requirement, other parameter combinations in the parameter combination list 5 may be selected, and when none of the parameter combinations in the parameter combination list 5 meet the requirements, the terminal device may again select a parameter combination from the parameter combination list 2 for the establishment and/or modification of the PDU session. And so on.

For replacing the parameter combination list selected by the network device with the new parameter combination list, it is assumed that there are parameter combination list 1, parameter combination list 2, and parameter combination list 3 in the URSP rule, and that parameter combination list 1 has a higher priority than parameter combination list 2, and parameter combination list 2 has a higher priority than parameter combination list 3. The network device may preferentially select the parameter combination list 1 and the terminal device and generate a new parameter combination list 4 based on the parameter combination list 1 and the parameter combination list preferred by the terminal device. The terminal device may use the new parameter combination list 4 instead of the network device selected parameter combination list 1, the new parameter combination list 4 having a higher priority than the parameter combination list 2 and the parameter combination list 3, that is, after generating the new parameter combination list 4, the terminal device may first select one parameter combination in the parameter combination list 4 for the establishment and/or modification of the PDU session, if the parameter combination list 4 has a plurality of parameter combinations, when one parameter combination in the parameter combination list 4 does not satisfy the requirement, the terminal device may select the other parameter combinations in the parameter combination list 4, when all parameter combinations in the parameter combination list 4 do not satisfy the requirement, the terminal device may generate a new parameter combination list 5 based on the parameter combination list 2 and the terminal device preferred parameter combination list, after generating a new parameter combination list 5, updating the parameter combination list 2 to the parameter combination list 5, and the priority of the parameter combination list 5 is higher than that of the parameter combination list 2, that is, the terminal device may first select one parameter combination in the parameter combination list 5 for the establishment and/or modification of the PDU session, and if there are multiple parameter combinations in the parameter combination list 5, when one parameter combination in the parameter combination list 5 does not meet the requirement, the terminal device may form a new parameter combination list by combining the parameter combination list preferred by the terminal device and the parameter combination list 3 again. And so on.

It should be understood that after the parameter combination list is selected, the establishment and/or modification of the PDU session may also be performed based on the parameter combination of the priority combination of each parameter in the parameter combination list.

Optionally, in this embodiment of the present application, the new parameter combination list is a parameter combination list preferred by the terminal device. That is, the parameter combination list preferred by the terminal device can be directly used as a new parameter combination list. Further, the priority of the parameter combination list preferred by the terminal device may be the highest in the entire URSP rule, that is, the terminal device may preferentially select the parameter combination in the parameter combination list preferred by the terminal device for the establishment and/or modification of the PDU session. Taking the example that the URSP rules include parameter combination lists 1 to 3, the priority of the parameter combination list preferred by the terminal device is higher than that of the parameter combination list 1, the priority of the parameter combination list 1 is higher than that of the parameter combination list 2, and the priority of the parameter combination list 2 is higher than that of the parameter combination list 3.

Optionally, in this embodiment of the present application, after the terminal device selects one parameter combination in a certain parameter combination list in the URSP rule to perform PDU session establishment and fails, the network device may reply a cause value to the terminal device, where the cause value may specifically indicate that the used parameter combination does not meet requirements, if the parameter combination list selected by the terminal device has other parameter combinations, the terminal device may initiate establishment and/or modification of a PDU session again based on the other parameter combinations, and if the parameter combination list selected by the terminal device has no other parameter combinations, the terminal device may reselect a parameter combination in the parameter combination list to initiate establishment and/or modification of the PDU session again.

It should be understood that the interaction between the network device and the terminal device described by the network device and the related characteristics, functions, etc. correspond to the related characteristics, functions of the terminal device. That is, what message the terminal device sends to the network device, the network device receives the corresponding message from the terminal device.

The method for data transmission according to the embodiment of the present application is described above in detail, and the apparatus for data transmission according to the embodiment of the present application will be described below with reference to fig. 18 and 19, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 18 shows a schematic block diagram of the terminal device 20 of the embodiment of the present application. As shown in fig. 18, the terminal device 20 includes:

an adding unit or updating unit 21, configured to add a new parameter combination list or an updated parameter combination list in the URSP rule of the ue path selection policy according to the parameter combination list preferred by the terminal device, where one parameter combination in the parameter combination list is used for establishing and/or modifying a PDU session.

Optionally, in this embodiment of the present application, the adding unit is specifically configured to: and forming a second parameter combination list according to the parameter combination list preferred by the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule, wherein the second parameter combination list is the new parameter combination list.

Optionally, in this embodiment of the application, the adding unit forms a second parameter combination list according to the parameter combination list preferred by the terminal device and the first parameter combination list selected by the network device in the URSP rule, where the forming includes:

adding the value of at least one parameter in the parameter combination list preferred by the terminal equipment to the corresponding parameter in the first parameter combination list to form the second parameter combination list, and/or replacing the value of at least one parameter in the first parameter combination list with the value of the corresponding parameter in the parameter combination list preferred by the terminal equipment to form the second parameter combination list.

Optionally, in this embodiment of the present application, the update unit is specifically configured to: the terminal equipment forms a second parameter combination list according to the parameter combination list preferred by the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule; and updating the first parameter combination list into the second parameter combination list.

Optionally, in an embodiment of the present application, the at least one parameter does not include session and service continuity mode and/or network slice assistance information.

Optionally, in this embodiment of the application, the second parameter combination list has the highest priority in the URSP rule after a new parameter combination list is added or a parameter combination list is updated, and the terminal device further includes: and the establishing unit is used for establishing the PDU session according to the parameter combination in the selected parameter combination list based on the priority of the parameter combination list of the URSP rule after the new parameter combination list is added.

Optionally, in this embodiment of the present application, the adding unit is further configured to: if all the parameter combinations in the first parameter combination list and the second parameter combination list do not meet the establishment requirement of the PDU session, a fourth parameter combination list is formed according to the parameter combination list and a third parameter combination list preferred by the terminal equipment, the third parameter combination list is a parameter combination list with the highest priority in the URSP rules after a new parameter combination list is added, and the priority of the fourth parameter combination list is higher than that of the third parameter combination list.

Optionally, in this embodiment of the application, the updating unit is further configured to: if all the parameter combinations in the second parameter combination list do not meet the establishment requirement of the PDU session, the terminal equipment forms a fourth parameter combination list according to the parameter combination list preferred by the terminal equipment and a third parameter combination list, wherein the third parameter combination list is a parameter combination list with the highest priority in the URSP rules after the parameter combination list is updated except the second parameter combination list; and updating the third parameter combination list into the fourth parameter combination list.

Optionally, in this embodiment of the present application, the new parameter combination list is a parameter combination list preferred by the terminal device.

Optionally, in this embodiment of the present application, the terminal device prefers the parameter combination list with the highest priority in the URSP rule after adding the new parameter combination list, and the terminal device further includes: and the establishing unit is used for establishing and/or modifying the PDU session according to the parameter combination in the selected parameter combination list based on the priority of the parameter combination list of the URSP rule after the new parameter combination list is added.

Optionally, in this embodiment of the present application, the parameter combination list includes at least one of a session and service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication, a radio access type, and a PDU session type.

Optionally, in this embodiment of the present application, the terminal device further includes: and the establishing unit is used for initiating the establishment and/or modification of the PDU session to the network equipment according to the parameter combination in the fifth parameter combination list in the URSP rule after the new parameter combination list is added or the parameter combination list is updated.

Optionally, in this embodiment of the present application, the terminal device further includes: a receiving unit, configured to receive a reply message sent by the network device, where the reply message is used to indicate a cause value of the PDU session establishment failure.

Optionally, in this embodiment of the present application, the cause value is used to indicate that the first parameter combination in the fifth parameter combination list does not satisfy the requirement.

Optionally, in this embodiment of the present application, the establishing unit is further configured to, if the fifth parameter combination list further includes a second parameter combination, use the second parameter combination to initiate establishment and/or modification of the PDU session again; and if the fifth parameter combination list does not comprise the second parameter combination, initiating the establishment and/or modification of the PDU session again according to the new parameter combination list or the sixth parameter combination list in the URSP rule after the parameter combination list is updated.

As shown in fig. 19, the present embodiment also provides a terminal device 30, where the terminal device 30 may be the terminal device 20 in fig. 18, which can be used to execute the content of the terminal device corresponding to the method 10 in fig. 16. The terminal device 30 shown in fig. 19 includes a processor 31, and the processor 31 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 19, the terminal device 30 may further include a memory 32. From the memory 32, the processor 31 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 32 may be a separate device from the processor 310, or may be integrated into the processor 31.

Optionally, as shown in fig. 19, the terminal device 30 may further include a transceiver 33, and the processor 31 may control the transceiver 33 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 33 may include a transmitter and a receiver, among others. The transceiver 33 may further include antennas, and the number of antennas may be one or more.

Optionally, the terminal device 30 may be a terminal device in the embodiment of the present application, and the terminal device 30 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

In a specific embodiment, the adding unit and the establishing unit in the terminal device 30 may be implemented by the processor 31 in fig. 19.

Fig. 20 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 40 shown in fig. 20 includes a processor 41, and the processor 41 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 20, the chip 40 may further include a memory 42. From memory 420, processor 41 may invoke and run a computer program to implement the methods of the embodiments of the present application.

The memory 42 may be a separate device from the processor 41, or may be integrated in the processor 41.

Optionally, the chip 40 may further include an input interface 43. The processor 41 may control the input interface 43 to communicate with other devices or chips, and specifically may obtain information or data transmitted by other devices or chips.

Optionally, the chip 40 may further include an output interface 44. The processor 41 may control the output interface 44 to communicate with other devices or chips, and may specifically output information or data to the other devices or chips.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 21 is a schematic block diagram of a communication system 50 provided in an embodiment of the present application. As shown in fig. 21, the communication system 50 includes a terminal device 51 and a network device 52.

The terminal device 51 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 52 may be configured to implement the corresponding function implemented by the network device in the foregoing method, which is not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 22 shows a schematic block diagram of a method 60 for data transmission according to an embodiment of the present application. As shown in fig. 22, the method 60 includes some or all of the following:

s61, the terminal equipment selects a first parameter combination list from the URSP rule according to the matching degree of the parameter combination list in the URSP rule of the user equipment path selection policy relative to the parameter combination list preferred by the terminal equipment, wherein one parameter combination in the parameter combination list is used for establishing and/or modifying a Protocol Data Unit (PDU) session.

URSP is currently introduced in the 5G architecture, and the URSP rules specify the routing policies of the UE for different filter descriptors. For the UE, there is only one URSP rule, and the URSP rule may include, but is not limited to, filter descriptors (Traffic descriptors), Application identifiers (Application identifiers), Internet Protocol (IP) descriptors (descriptors), non-IP descriptors (non-IP descriptors), Route Selection Descriptors (RSD), and the like. The URSP rule may further comprise a plurality of parameter combination lists, which may be RSDs, for example, and a parameter combination list may comprise a plurality of parameters, and each parameter may comprise at least one value, and combining one value of each parameter in the parameter combination list constitutes a parameter combination, that is, the parameter combination list may have a plurality of parameter combinations. One parameter combination in the parameter combination list may be used to establish the PDU session. The parameters in the parameter combination list may include, but are not limited to, at least one of the following parameters: a Session and Service Continuity (SSC) pattern, Single Network Slice Assistance Information (NSSAI), a Data Network Name (DNN), a Non-seamless Offload indication (Non-seamless Offload indication), an Access Type (Access Type preference), and a PDU Session Type. It should be understood that the functions of "data stream filter", "data stream descriptor", "filter descriptor" and the like in the embodiments of the present application may be the same, and all are used to describe the characteristics of different application data streams, and may be characterized by at least one of the following information: an IP address, a Uniform Resource Locator (URL), and a data network name DNN.

It should be noted that, for convenience of description, the RSD is used as an example in many places in the parameter combination list, but may be a name that may be used in a future standard, as long as the function of the parameter combination list is the same as or similar to that in the embodiment of the present application. The parameter combination list of the embodiment of the present application can be shown in table 6.

TABLE 6

The entirety of table 6 may be a parameter combination list, SSC-2 in table 6; S-NSSAI _ 1; DNN _ 1; is that; 3GPP can be combined into one parameter combination that can be used for PDU session establishment and/or modification.

In the embodiment of the present application, there may be a preferred parameter combination list, i.e. user reference, inside the terminal device, as shown in table 7, and the values of the parameters in table 7 are the values of the parameters of the user's preference.

TABLE 7

Parameter(s)	Value of
Session and service continuity mode	SSC-2
Single network slicing assistance information	S-NSSAI_1,S-NSSAI_2
Data network name	DNN_3
Non-seamless split flow indication	Is that
Type of wireless access	3GPP

Alternatively, the list of the preferred parameter combinations of the terminal device may include only part of the parameters in table 7, as shown in table 8, the preferred parameter combinations of the terminal device may include only the non-seamless offload indication and the radio access type, and the respective parameter values may be as follows:

TABLE 8

Parameter(s)	Value of
Non-seamless split flow indication	Is that
Type of wireless access	non-3GPP

It can also be understood that the matching of the parameter combination list preferred by the terminal device and the parameter combination list in the URSP rule may be performed without considering the session and service continuity mode, the single network slice assistance information, the data network name and the PDU session type. Only the matching degree of the non-seamless distribution indication and the wireless access type needs to be considered. Here, the matching degree may be a degree of matching between the parameter combination list preferred by the terminal and the parameter or the value of each parameter included in the parameter combination list in the URSP.

The terminal device may select one of the parameter combination lists to be used for PDU session establishment and/or modification according to a matching degree of the preferred parameter combination list and at least one of the parameter combination lists in the URSP rules.

Example 1: the URSP rules include RSD-1, RSD-2 and RSD-3, and the parameter combination list of the terminal equipment preference is shown in the table 7. Since the parameter combination list preferred by the terminal device is identical to the parameter types included in RSD-1 to RSD-3, the parameter values of all the included parameters can be matched. Wherein the matching degree of the RSD-1 and the parameter combination list preferred by the terminal equipment is 80%, the matching degree of the RSD-2 and the parameter combination list preferred by the terminal equipment is 70%, and the matching degree of the RSD-3 and the parameter combination list preferred by the terminal equipment is 30%, the terminal equipment can select the RSD-1 to be used for establishing the PDU session and/or modifying. That is, the terminal device may use the RSD with the highest matching degree in the URSP rule as the selected RSD. The terminal device may also use the RSD with the second highest matching degree or other matching degrees as the selected RSD, in short, the terminal device may select the RSD from the URSP rule according to the matching degree with the parameter combination list preferred by the terminal device.

Example 2: the URSP rules include RSD-1, RSD-2 and RSD-3, and the parameter combination list of the terminal equipment preference is shown in Table 8. Since the parameter types included in the parameter combination list preferred by the terminal device belong to the subset of the parameter types included in the RSD-1 to RSD-3, only the matching of the parameter combination list preferred by the terminal device with the parameter values of the parameters included in the parameter combination list preferred by the terminal device in the RSD-1 to RSD-3 can be performed. If the matching degree of the parameter combination list preferred by the terminal equipment in the RSD-1-RSD-3 is 100%, selecting the RSD with the matching degree of 100%; if the degree of matching of the RSD-1 and the parameter combination list preferred by the terminal equipment is 50%, and the degree of matching of the RSD-2 and the parameter combination list preferred by the terminal equipment is 50%, and the degree of matching of the RSD-3 and the parameter combination list preferred by the terminal equipment is 0%, the terminal equipment can select one RSD from the RSD-1 and the RSD-2 to be used for PDU session establishment and/or modification.

Optionally, in an embodiment of the present application, the method further includes: if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rule according to the matching degree, and the matching degree of the second parameter combination list is only second to the matching degree of the first parameter combination list in the URSP rule.

Specifically, if the terminal device selects one RSD according to the matching degree and finds that the RSD does not satisfy the requirement, the terminal device may reselect one RSD according to the matching degree. For example, the terminal device may select the RSD with the highest matching degree first, then select the RSD with the second highest matching degree, and so on, according to the matching degree, until one RSD meets the requirement, or none of the RSDs in the URSP rule meets the requirement.

Optionally, in an embodiment of the present application, the method further includes: and if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rules according to the priority of the parameter combination list in the URSP rules.

Specifically, if the terminal device selects one RSD according to the matching degree first and finds that the requirement is not satisfied, the terminal device may reselect one RSD according to the priority of each RSD in the URSP rule again. For example, RSD-1, RSD-2, RSD-3 are among the URSP rules, where RSD-1 matches 80% of the list of parameter combinations preferred by the terminal device, RSD-2 matches 70% of the list of parameter combinations preferred by the terminal device, and RSD-3 matches 30% of the list of parameter combinations preferred by the terminal device, then the terminal device may select RSD-1 to use for PDU session establishment and/or modification. If RSD-1 does not meet the requirement, the priority of three RSDs in the URSP rule is as follows: RSD-3 has a higher priority than RSD-2, and RSD-2 has a higher priority than RSD-1, then the terminal device may select RSD-3 to be used as the PDU session establishment and/or modified RSD.

Optionally, in this embodiment of the application, before the terminal device selects the second parameter combination list from the URSP rule, the method further includes: the terminal equipment initiates the establishment and/or modification of the PDU session to the network equipment according to the first parameter combination in the first parameter combination list; and if the first parameter combination does not meet the establishment and/or modification requirements of the PDU session and the first parameter combination list further comprises a second parameter combination, the terminal equipment initiates the establishment and/or modification of the PDU session to the network equipment again according to the second parameter combination.

Optionally, in an embodiment of the present application, the method further includes: and the terminal equipment receives a reply message sent by the network equipment, wherein the reply message carries a cause value of PDU session establishment and/or modification failure, and the cause value is used for indicating that the first parameter combination does not meet the requirement.

It should be understood that the manner of determining that the RSD does not satisfy the requirement and the replying manner may be similar to the description in the method 10, that is, if there are multiple parameter combinations in the RSD, different parameter combinations may be sequentially selected, and the terminal device initiates establishment and/or modification of the PDU session to the network device again according to the selected parameter combinations. And judging that the RSD does not meet the requirement until all the parameter combinations do not meet the requirement. If the RSD has only one parameter combination, the RSD may not meet the requirement as long as the parameter combination in the RSD does not meet the requirement, and for brevity, the description is omitted here.

Optionally, in this embodiment of the present application, the selecting, by the terminal device, a first parameter combination list from the URSP rule according to a matching degree of a parameter combination list in a user equipment path selection policy URSP rule with respect to a parameter combination list preferred by the terminal device includes: the terminal equipment selects a plurality of parameter combination lists from the URSP rule according to the matching degree, wherein at least one parameter of any two parameter combination lists in the parameter combination lists is different; and the terminal equipment selects the first parameter combination list from the plurality of parameter combination lists according to the importance of the at least one parameter of any two parameter combination lists.

Alternatively, the terminal device may obtain a plurality of RSDs according to the matching degree, and then the terminal device may further select which one is finally used according to the distinguishing parameters in the plurality of RSDs. As shown in example 2, the terminal device considers that RSD-1 and RSD-2 are both suitable according to the matching degree, and the terminal device can select one RSD from RSD-1 and RSD-2 again. Further, if the RSD-1 includes the parameter 1, the parameter 2 and the parameter 3, and the RSD-2 includes the parameter 2, the parameter 3 and the parameter 4, if the importance of the parameter 1 is higher than that of the parameter 4, the RSD-1 and the RSD-2 are distinguished by the parameter 1 in the RSD-1 and the parameter 4 in the RSD-2, so that the terminal device can finally select the RSD-1.

It should be understood that, in the embodiments of the present application, the RSD is selected according to the matching degree, the importance degree or the priority, which are described as the highest matching degree, the highest importance degree or the highest priority, but the embodiments of the present application are not limited thereto.

Optionally, in an embodiment of the present application, the method further includes: if the first parameter combination list and the terminal equipment preferred parameter combination list have different parameter values of at least one parameter, the terminal equipment replaces the parameter value of the at least one parameter in the first parameter combination list with the parameter value of the corresponding parameter in the terminal equipment preferred parameter combination list; and the terminal equipment establishes and/or modifies the PDU session according to the replaced first parameter combination.

That is, if the terminal device selects RSD-1 and RSD-1 is shown in table 6 and the list of preferred parameter combinations of the terminal device is shown in table 7, since the data network names DNN in RSD-1 and the list of preferred parameter combinations of the terminal device are different, the terminal device directly replaces DNN with DNN-3 in the list of preferred parameter combinations of the terminal device when selecting the parameter combination in RSD-1.

Optionally, in an embodiment of the present application, the method further includes: if the first parameter combination list and the terminal equipment preference parameter combination list have different parameter values of at least one parameter, the terminal equipment adds the parameter value of the at least one parameter in the terminal equipment preference parameter combination list to the parameter value of the corresponding parameter in the first parameter combination list; the terminal device preferentially establishes and/or modifies the PDU session according to a first parameter combination in the first parameter combination list, wherein the first parameter combination comprises a parameter value of the at least one parameter in the parameter combination list preferred by the terminal device.

For example, the terminal device selects RSD-1 as shown in table 6, and the list of preferred parameter combinations of the terminal device is shown in table 8, since the radio access types of RSD-1 and the list of preferred parameter combinations of the terminal device are different, the terminal device may add the value non-3GPP of the radio access type in the list of preferred parameter combinations of the terminal device to the parameter value of the radio access type in RSD-1, the terminal device may preferentially select the parameter combination including non-3GPP when selecting the parameter combination, and if the parameter combination including non-3GPP does not meet the requirement, the terminal device may reselect the parameter combination including 3 GPP.

The method for data transmission according to the embodiment of the present application is described above in detail, and the apparatus for data transmission according to the embodiment of the present application will be described below with reference to fig. 23 and 24, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 23 shows a schematic block diagram of the terminal device 70 of the embodiment of the present application. As shown in fig. 23, the terminal device 70 includes:

a selecting unit 71, configured to select a first parameter combination list from the URSP rule according to a matching degree of a parameter combination list in the URSP rule of the user equipment path selection policy with respect to a parameter combination list preferred by the terminal device, where one parameter combination in the parameter combination list is used for establishing and/or modifying a protocol data unit, PDU, session.

Optionally, in this embodiment of the application, the first parameter combination list is a parameter combination list with the highest matching degree in the URSP rule.

Optionally, in an embodiment of the present application, the selecting unit is further configured to: if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, selecting a second parameter combination list from the URSP rules according to the matching degree, wherein the matching degree of the second parameter combination list is only second to the matching degree of the first parameter combination list in the URSP rules.

Optionally, in an embodiment of the present application, the selecting unit is further configured to: and if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rules according to the priority of the parameter combination list in the URSP rules.

Optionally, in this embodiment of the present application, the terminal device further includes: a session establishing unit: before the selecting unit selects the second parameter combination list from the URSP rule, the selecting unit is configured to initiate establishment and/or modification of a PDU session to a network device according to a first parameter combination in the first parameter combination list; and if the first parameter combination does not meet the establishment and/or modification requirements of the PDU session and the first parameter combination list further comprises a second parameter combination, initiating establishment and/or modification of the PDU session to the network equipment again according to the second parameter combination.

Optionally, in this embodiment of the present application, the terminal device further includes: a receiving unit, configured to receive a reply message sent by the network device, where the reply message carries a cause value of PDU session establishment and/or modification failure, and the cause value is used to indicate that the first parameter combination does not meet the requirement.

Optionally, in an embodiment of the present application, the selecting unit is specifically configured to: selecting a plurality of parameter combination lists from the URSP rule according to the matching degree, wherein at least one parameter of any two parameter combination lists in the parameter combination lists is different; selecting the first parameter combination list from the plurality of parameter combination lists according to the importance of the at least one parameter of any two parameter combination lists.

Optionally, in this embodiment of the present application, the terminal device further includes: a replacing unit, configured to replace a parameter value of at least one parameter in a first parameter combination in the first parameter combination list with a parameter value of a corresponding parameter in the parameter combination list preferred by the terminal device, if the parameter values of the at least one parameter are different between the first parameter combination list and the parameter combination list preferred by the terminal device; and the session establishing unit is used for establishing and/or modifying the PDU session according to the first parameter combination after replacement.

Optionally, in this embodiment of the present application, the terminal device further includes: an adding unit, configured to add, if the first parameter combination list and the terminal device preferred parameter combination list have different parameter values of at least one parameter, the parameter value of the at least one parameter in the terminal device preferred parameter combination list to the parameter value of the corresponding parameter in the first parameter combination list; a session establishing unit, configured to preferentially establish and/or modify a PDU session according to a first parameter combination in the first parameter combination list, where the first parameter combination includes a parameter value of the at least one parameter in the parameter combination list preferred by the terminal device.

As shown in fig. 24, the present embodiment also provides a terminal device 80, where the terminal device 80 may be the terminal device 70 in fig. 23, which can be used to execute the content of the terminal device corresponding to the method 60 in fig. 22. The terminal device 80 shown in fig. 24 includes a processor 81, and the processor 81 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 24, the terminal device 80 may further include a memory 82. From the memory 82, the processor 81 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 82 may be a separate device from the processor 810, or may be integrated into the processor 81.

Optionally, as shown in fig. 24, the terminal device 80 may further include a transceiver 83, and the processor 81 may control the transceiver 83 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 83 may include a transmitter and a receiver, among others. The transceiver 83 may further include one or more antennas.

Optionally, the terminal device 80 may be a terminal device in the embodiment of the present application, and the terminal device 80 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

In a specific embodiment, the selecting unit and the session establishing unit in the terminal device 70 may be implemented by the processor 81 in fig. 24.

Fig. 25 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 90 shown in fig. 25 includes a processor 91, and the processor 91 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 25, the chip 90 may further include a memory 92. From the memory 920, the processor 91 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 92 may be a separate device from the processor 91, or may be integrated into the processor 91.

Optionally, the chip 90 may further include an input interface 93. The processor 91 may control the input interface 93 to communicate with other devices or chips, and specifically, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 90 may further include an output interface 99. The processor 91 may control the output interface 99 to communicate with other devices or chips, and may particularly output information or data to other devices or chips.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

This functionality, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for data transmission, comprising:

the method comprises the steps that a terminal device establishes and/or binds a Protocol Data Unit (PDU) session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection strategy (URSP), wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating one group of parameter combinations, the parameter combinations comprise values of each parameter in at least one parameter used for establishing and/or binding the PDU session, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter comprises at least one value.
The method of claim 1, wherein the terminal device establishes and/or binds the PDU session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy, URSP, comprising:

the terminal equipment determines a first index combination from the at least one group of index combinations;

and the terminal equipment establishes and/or binds the PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.
The method of claim 2, wherein the at least one index combination comprises a plurality of index combinations, wherein the path selection descriptor table further comprises priorities for use of the plurality of index combinations, and wherein the determining, by the terminal device, a first index combination from the at least one index combination comprises:

and the terminal equipment determines the first index combination from the multiple groups of index combinations according to the priority.
The method of claim 3, wherein the path selection descriptor table comprises at least one first identifier, the at least one first identifier being used to identify the at least one index combination in a one-to-one correspondence, the first identifier being used to indicate a priority for use of the index combination.
A method according to any one of claims 1 to 4, wherein at least one value of each said parameter is also included in the path selection descriptor table.
The method of claim 5, wherein each of the parameters comprises a plurality of values having a priority order, and wherein the index corresponding to each of the parameters is used to indicate the priority of the plurality of values of the corresponding parameter.
The method of claim 6, further comprising:

and under the condition that none of the parameter combinations indicated by the at least one index combination meets the requirements, the terminal equipment establishes and/or binds the PDU session according to the priority of the multiple values of each parameter.
The method according to any one of claims 1 to 7, further comprising:

the terminal equipment receives first indication information sent by network equipment, wherein the first indication information is used for indicating at least one of the following conditions: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.
The method according to any one of claims 1 to 8, wherein the path selection descriptor table further comprises a path selection descriptor identifier, and the path selection descriptor identifier is used for adding, updating or deleting contents in the path selection descriptor table.
The method of claim 9, further comprising:

and the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for indicating that the content in the path descriptor table is added, updated or deleted.
The method according to any one of claims 1 to 10, wherein the at least one parameter comprises at least one of: session or service continuity mode, data network name, network slice assistance information, non-seamless offload indication, and radio access type.
A method for data transmission, comprising:

the network equipment configures a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for the terminal equipment, wherein the path selection descriptor table comprises at least one group of index combinations, each group of index combinations in the at least one group of index combinations comprises at least one index, each group of index combinations is used for indicating one group of parameter combinations, each parameter combination comprises a value of each parameter in at least one parameter for establishing and/or binding a PDU session, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter comprises at least one value.
The method of claim 12, further comprising:

the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating at least one of the following conditions: adding an index combination in the path selection descriptor table, deleting an index combination in the path selection descriptor table, and updating an index combination in the path selection descriptor table.
The method according to claim 12 or 13, wherein the at least one set of index combinations comprises a plurality of sets of index combinations, and wherein the path selection descriptor table further comprises priorities for use of the plurality of sets of index combinations.
The method of claim 14, wherein the path selection descriptor table comprises at least one first identifier, the at least one first identifier being used to identify the at least one index combination in a one-to-one correspondence, the first identifier being used to indicate a priority for use of the index combination.
A method according to any one of claims 12 to 15, wherein at least one value of each said parameter is also included in the path selection descriptor table.
The method of claim 16, wherein each of the parameters comprises a plurality of values having a priority order, and wherein the index corresponding to each of the parameters is used to indicate the priority of the plurality of values of the corresponding parameter.
A method as claimed in any one of claims 12 to 17, wherein the path selection descriptor table further comprises a path selection descriptor identifier, the path selection descriptor identifier being used to add, update or delete content in the path selection descriptor table.
The method of claim 18, further comprising:

and the network equipment sends second indication information to the terminal equipment, wherein the second indication information is used for indicating that the content in the path selection descriptor table is added, updated or deleted.
The method according to any one of claims 12 to 19, wherein the at least one parameter comprises at least one of: session or service continuity mode, data network name, network slice assistance information, non-seamless offload indication, and radio access type.
A method for data transmission, comprising:

the terminal equipment establishes and/or binds a Protocol Data Unit (PDU) session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection strategy (URSP), wherein the path selection descriptor table comprises a path selection descriptor identifier, and the path selection descriptor identifier is used for adding, updating or deleting the content in the path selection descriptor table.
The method of claim 21, wherein the path selection descriptor table further comprises at least one value for each of at least one parameter used to establish and/or bind a PDU session.
A method according to claim 21 or 22, wherein each of said parameters comprises a plurality of values having a priority order.
The method of any one of claims 21 to 23, further comprising:

and the terminal equipment receives indication information sent by network equipment, wherein the indication information is used for indicating to update the content in the path selection descriptor table.
The method according to claim 22 or 23, wherein the at least one parameter comprises at least one of the following parameters: session or service continuity mode, data network name, network slice assistance information, non-seamless offload indication, and radio access type.
A method for data transmission, comprising:

the network equipment configures a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for the terminal equipment, wherein the path selection descriptor table comprises a path selection descriptor identifier, and the path selection descriptor identifier is used for adding, updating or deleting the content in the path selection descriptor table.
The method of claim 26, wherein the path selection descriptor table further comprises at least one value for each of at least one parameter used to establish and/or bind protocol data unit, PDU, sessions.
The method of claim 27, wherein each parameter comprises a plurality of values having a priority order.
The method of any one of claims 26 to 28, further comprising:

and the network equipment sends indication information to the terminal equipment, wherein the indication information is used for indicating and updating the content in the path selection descriptor table.
The method according to claim 27 or 28, wherein the at least one parameter comprises at least one of the following parameters: session or service continuity mode, data network name, network slice assistance information, non-seamless offload indication, and radio access type.
A terminal device, comprising:

a processing unit, configured to establish and/or bind a PDU session according to a path selection descriptor table corresponding to a first rule in a ue path selection policy URSP, where the path selection descriptor table includes at least one group of index combinations, each group of index combinations in the at least one group of index combinations includes at least one index, each group of index combinations is used to indicate a group of parameter combinations, each parameter combination includes a value of each parameter in at least one parameter used to establish and/or bind the PDU session, the at least one index corresponds to the at least one parameter in a one-to-one manner, and each parameter includes at least one value.
A network device, comprising:

a configuration unit, configured to configure, for a terminal device, a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, where the path selection descriptor table includes at least one group of index combinations, each group of index combinations in the at least one group of index combinations includes at least one index, each group of index combinations is used to indicate a group of parameter combinations, each parameter combination includes a value of each parameter in at least one parameter used to establish and/or bind a PDU session, the at least one index corresponds to the at least one parameter in a one-to-one manner, and each parameter includes at least one value.
A terminal device, comprising:

a processing unit, configured to establish and/or bind a protocol data unit PDU session according to a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, and the path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.
A network device, comprising:

a configuration unit, configured to configure, for a terminal device, a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, and the path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.
A method for data transmission, comprising:

when the data streams described by the filter descriptor of each rule in the multiple rules in the path selection policy URSP of the user equipment are overlapped, the terminal equipment determines the rule used by the data stream of the overlapped part from the multiple rules according to the priorities of the multiple rules.
The method of claim 35, wherein the determining, by the terminal device, the rule used by the data flow of the overlapping portion from the plurality of rules according to the priority of the plurality of rules comprises:

and the terminal equipment determines the rule with the highest priority in the plurality of rules as the rule used by the data flow of the overlapping part.
A terminal device, characterized in that the terminal device comprises:

a determining unit, configured to, when data streams described by a filter descriptor of each of a plurality of rules in a user equipment path selection policy URSP overlap, determine, according to priorities of the plurality of rules, a rule used by a data stream in an overlapping portion from the plurality of rules.
A method for data transmission, comprising:

and the terminal equipment adds a new parameter combination list or updates the parameter combination list in the URSP rule of the path selection strategy of the user equipment according to the preferred parameter combination list of the terminal equipment, wherein one parameter combination in the parameter combination list is used for establishing and/or modifying the Protocol Data Unit (PDU) session.
The method of claim 38, wherein the adding, by the terminal device, a new parameter combination list to the URSP rule of the ue path selection policy according to the parameter combination list preferred by the terminal device comprises:

and the terminal equipment forms a second parameter combination list according to the preferred parameter combination list of the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule, wherein the second parameter combination list is the new parameter combination list.
The method of claim 39, wherein the adding, by the terminal device, a new parameter combination list to the URSP rule of the UE path selection policy according to the parameter combination list preferred by the terminal device comprises:

the terminal equipment forms a second parameter combination list according to the preferred parameter combination list of the terminal equipment and the first parameter combination list selected by the network equipment in the URSP rule;

updating the first parameter combination list to the second parameter combination list.
The method according to claim 39 or 40, wherein the forming, by the terminal device, a second parameter combination list according to the parameter combination list preferred by the terminal device and the first parameter combination list comprises:

and the terminal equipment adds the value of at least one parameter in the parameter combination list preferred by the terminal equipment to the corresponding parameter in the first parameter combination list, and/or replaces the value of at least one parameter in the first parameter combination list with the value of the corresponding parameter in the parameter combination list preferred by the terminal equipment to form the second parameter combination list.
The method according to claim 41, wherein the value of the first parameter in the parameter combination list preferred by the terminal device has a higher priority in the second parameter combination list than the value of the first parameter in the first parameter combination list.
The method according to claim 41 or 42, wherein said at least one parameter does not comprise session and traffic continuity mode and/or network slice assistance information.
The method according to any of claims 39-43, wherein said first parameter combination list is selected based on a priority of a parameter combination list in said URSP rule.
The method according to any of claims 39 to 44, wherein the second parameter combination list has highest priority in the URSP rules after adding a new parameter combination list or updating a parameter combination list, the method further comprising:

and the terminal equipment establishes and/or modifies the PDU session according to the parameter combination in the selected parameter combination list based on the priority of the parameter combination list added with a new parameter combination list or the URSP rule after updating the parameter combination list.
The method of any one of claims 39, 41 to 44, further comprising:

if all the parameter combinations in the first parameter combination list and the second parameter combination list do not meet the establishment requirement of the PDU session, the terminal equipment forms a fourth parameter combination list according to the parameter combination list preferred by the terminal equipment and a third parameter combination list, the third parameter combination list is a parameter combination list with the highest priority in the URSP rules after a new parameter combination list is added, except the first parameter combination list and the second parameter combination list, and the priority of the fourth parameter combination list is higher than that of the third parameter combination list.
The method of any one of claims 40 to 44, further comprising:

if all the parameter combinations in the second parameter combination list do not meet the establishment requirement of the PDU session, the terminal equipment forms a fourth parameter combination list according to a parameter combination list preferred by the terminal equipment and a third parameter combination list, wherein the third parameter combination list is a parameter combination list with the highest priority in URSP rules after the parameter combination list is updated except the second parameter combination list;

updating the third parameter combination list to the fourth parameter combination list.
The method of claim 38, wherein the new parameter combination list is a parameter combination list preferred by the terminal device.
The method of claim 48, wherein the terminal device prefers the parameter combination list with the highest priority in the URSP rules after adding a new parameter combination list, the method further comprising:

and the terminal equipment establishes and/or modifies the PDU session according to the parameter combination in the selected parameter combination list based on the priority of the parameter combination list of the URSP rule after the new parameter combination list is added.
The method according to any of claims 38 to 49, wherein the parameter combination list comprises at least one parameter of session and service continuity mode, data network name, network slice assistance information, non-seamless offload indication, radio access type and PDU session type.
The method of any one of claims 38 to 50, further comprising:

and the terminal equipment initiates the establishment and/or modification of the PDU session to the network equipment according to the parameter combination in the fifth parameter combination list in the URSP rule after the new parameter combination list is added or the parameter combination list is updated.
The method of claim 51, further comprising:

and the terminal equipment receives a reply message sent by the network equipment, wherein the reply message is used for indicating a cause value of PDU session establishment failure.
The method of claim 52, wherein the cause value is used to indicate that a first parameter combination in the fifth parameter combination list does not satisfy a requirement.
The method of claim 53, further comprising:

if the fifth parameter combination list further includes a second parameter combination, the terminal device uses the second parameter combination to initiate establishment and/or modification of the PDU session again;

and if the fifth parameter combination list does not comprise the second parameter combination, the terminal equipment initiates establishment and/or modification of the PDU session again according to the new parameter combination list or the sixth parameter combination list in the URSP rule after the parameter combination list is updated.
A terminal device, comprising:

and the adding unit or the updating unit is used for adding a new parameter combination list or updating the parameter combination list in the URSP rule of the path selection policy of the user equipment according to the parameter combination list preferred by the terminal equipment, wherein one parameter combination in the parameter combination list is used for establishing and/or modifying a Protocol Data Unit (PDU) session.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 11.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 12 to 20.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 21 to 25.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 26 to 30.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 35 to 36.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any one of claims 38 to 54.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 11.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 12 to 20.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 21 to 25.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 26 to 30.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 35 to 36.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 38 to 54.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 11.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 12 to 20.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 21 to 25.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 26 to 30.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 35 to 36.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 38 to 54.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 11.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 12 to 20.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 21 to 25.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 26 to 30.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 35 to 36.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 38 to 54.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 11.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 12-20.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 21-25.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 26 to 30.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 35-36.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 38 to 54.
A method for data transmission, comprising:

the method comprises the steps that a terminal device selects a first parameter combination list from a URSP rule according to the matching degree of a parameter combination list in a URSP rule of a user equipment path selection strategy relative to a parameter combination list preferred by the terminal device, and one parameter combination in the parameter combination list is used for establishing and/or modifying a Protocol Data Unit (PDU) session.
The method as claimed in claim 86, wherein the first parameter combination list is the parameter combination list with the highest matching degree in the URSP rule.
The method of claim 87, further comprising:

if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rule according to the matching degree, and the matching degree of the second parameter combination list is only second to the matching degree of the first parameter combination list in the URSP rule.
The method of claim 87, further comprising:

and if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rules according to the priority of the parameter combination list in the URSP rules.
The method according to claim 88 or 89, wherein before the terminal device selects the second combined list of parameters from the URSP rules, the method further comprises:

the terminal equipment initiates the establishment and/or modification of the PDU session to the network equipment according to the first parameter combination in the first parameter combination list;

and if the first parameter combination does not meet the establishment and/or modification requirements of the PDU session and the first parameter combination list further comprises a second parameter combination, the terminal equipment initiates the establishment and/or modification of the PDU session to the network equipment again according to the second parameter combination.
The method of claim 90, further comprising:

and the terminal equipment receives a reply message sent by the network equipment, wherein the reply message carries a cause value of PDU session establishment and/or modification failure, and the cause value is used for indicating that the first parameter combination does not meet the requirement.
The method according to any of claims 86-91, wherein said terminal device selects a first parameter combination list from said URSP rules according to a matching degree of a parameter combination list in a user equipment path selection policy, URSP, rule with respect to a parameter combination list preferred by said terminal device, comprising:

the terminal equipment selects a plurality of parameter combination lists from the URSP rule according to the matching degree, wherein at least one parameter of any two parameter combination lists in the parameter combination lists is different;

and the terminal equipment selects the first parameter combination list from the plurality of parameter combination lists according to the importance of the at least one parameter of any two parameter combination lists.
The method of any one of claims 86 to 92, further comprising:

if the first parameter combination list and the terminal equipment preferred parameter combination list have different parameter values of at least one parameter, the terminal equipment replaces the parameter value of the at least one parameter in the first parameter combination list with the parameter value of the corresponding parameter in the terminal equipment preferred parameter combination list;

and the terminal equipment establishes and/or modifies the PDU session according to the replaced first parameter combination.
The method of any one of claims 86 to 92, further comprising:

if the first parameter combination list and the terminal equipment preference parameter combination list have different parameter values of at least one parameter, the terminal equipment adds the parameter value of the at least one parameter in the terminal equipment preference parameter combination list to the parameter value of the corresponding parameter in the first parameter combination list;

the terminal device preferentially establishes and/or modifies the PDU session according to a first parameter combination in the first parameter combination list, wherein the first parameter combination comprises a parameter value of the at least one parameter in the parameter combination list preferred by the terminal device.
A terminal device, characterized in that the terminal device comprises:

a selecting unit, configured to select a first parameter combination list from the URSP rule according to a matching degree of a parameter combination list in a path selection policy URSP rule of the user equipment with respect to a parameter combination list preferred by the terminal equipment, where one parameter combination in the parameter combination list is used for establishment and/or modification of a protocol data unit, PDU, session.
The terminal device of claim 95, wherein the first parameter combination list is a parameter combination list with the highest matching degree in the URSP rule.
The terminal device of claim 96, wherein the selecting unit is further configured to:

if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, selecting a second parameter combination list from the URSP rules according to the matching degree, wherein the matching degree of the second parameter combination list is only second to the matching degree of the first parameter combination list in the URSP rules.
The terminal device of claim 96, wherein the selecting unit is further configured to:

and if the first parameter combination list does not meet the establishment and/or modification requirements of the PDU session, the terminal equipment selects a second parameter combination list from the URSP rules according to the priority of the parameter combination list in the URSP rules.
The terminal device according to claim 97 or 98, wherein the terminal device further comprises:

a session establishing unit: before the selecting unit selects the second parameter combination list from the URSP rule, the selecting unit is configured to initiate establishment and/or modification of a PDU session to a network device according to a first parameter combination in the first parameter combination list;

and if the first parameter combination does not meet the establishment and/or modification requirements of the PDU session and the first parameter combination list further comprises a second parameter combination, initiating establishment and/or modification of the PDU session to the network equipment again according to the second parameter combination.
The terminal device of claim 99, wherein the terminal device further comprises:

a receiving unit, configured to receive a reply message sent by the network device, where the reply message carries a cause value of PDU session establishment and/or modification failure, and the cause value is used to indicate that the first parameter combination does not meet the requirement.
The terminal device according to any one of claims 95 to 100, wherein the selecting unit is specifically configured to:

selecting a plurality of parameter combination lists from the URSP rule according to the matching degree, wherein at least one parameter of any two parameter combination lists in the parameter combination lists is different;

selecting the first parameter combination list from the plurality of parameter combination lists according to the importance of the at least one parameter of any two parameter combination lists.
The terminal device of any one of claims 95-101, wherein the terminal device further comprises:

a replacing unit, configured to replace a parameter value of at least one parameter in a first parameter combination in the first parameter combination list with a parameter value of a corresponding parameter in the parameter combination list preferred by the terminal device, if the parameter values of the at least one parameter are different between the first parameter combination list and the parameter combination list preferred by the terminal device;

and the session establishing unit is used for establishing and/or modifying the PDU session according to the first parameter combination after replacement.
The terminal device of any one of claims 95-101, wherein the terminal device further comprises:

an adding unit, configured to add, if the first parameter combination list and the terminal device preferred parameter combination list have different parameter values of at least one parameter, the parameter value of the at least one parameter in the terminal device preferred parameter combination list to the parameter value of the corresponding parameter in the first parameter combination list;

a session establishing unit, configured to preferentially establish and/or modify a PDU session according to a first parameter combination in the first parameter combination list, where the first parameter combination includes a parameter value of the at least one parameter in the parameter combination list preferred by the terminal device.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory to perform the method of any one of claims 86-94.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 86 to 94.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 86 to 94.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 86 to 94.