WO2019127038A1 - Method for data transmission, terminal device and network device - Google Patents

Abstract

Disclosed are a method for data transmission, a terminal device and a network device. The method comprises: a terminal device carrying out establishment and/or binding of a protocol data unit (PDU) session according to a route selection descriptor table corresponding to a first rule in a user equipment route selection policy (URSP), wherein the route selection descriptor table comprises at least one index combination; each index combination in the at least one index combination comprises at least one index; each index combination is used for indicating one parameter combination; the parameter combination comprises the value of each of the 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, the terminal device and the network device in the embodiments of the present application facilitate the savings on and flexible use of a URSP policy space.

Description

Method, terminal device and network device for data transmission Technical field

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

Background technique

Currently, a User Route Selection Policy (URSP) is introduced in the 5th-Generation (5G) mobile communication technology architecture. Among them, there is only one URSP for the terminal device, and there may be more URSPs. A rule, each rule may include a Route Selection Descriptor (RSD), which is used to enumerate a set of protocol data unit (PDU) sessions for establishment and/or binding. In the current URSP strategy, each parameter may have several optional values, which may result in more data of the RSD, which is not conducive to the saving and flexible use of the URSP policy space.

Summary of the invention

In view of this, the embodiment of the present application provides a method, a terminal device, and a network device for data transmission, which are beneficial to realize saving and flexible use of the URSP policy space.

In a first aspect, a method for data transmission is provided, the method comprising: establishing, by a terminal device, 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 And/or binding, the path selection descriptor table includes at least one set of index combinations, each set of index combinations in the at least one set of index combinations including at least one index, the set of index combinations being used to indicate a set of parameter combinations, The parameter combination includes values for each of at least one parameter used to establish and/or bind a PDU session, the at least one index being in one-to-one correspondence with the at least one parameter, the each parameter including at least one value.

In a possible implementation, the terminal device performs the establishment and/or binding of the PDU session according to the path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, including: the terminal device The first index combination is determined in the at least one set of index combinations; the terminal device performs establishment and/or binding of the PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.

In a possible implementation, the at least one set of index combinations includes multiple sets of index combinations, and the path selection descriptor table further includes a priority used by the multiple sets of index combinations, and the terminal device combines from the at least one set of indexes. Determining the first index combination includes: determining, by the terminal device, the first index combination from the plurality of sets of index combinations according to the priority.

In a possible implementation, the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination, the first identifier is used to indicate the index. The priority of the combination.

In a possible implementation manner, the path selection descriptor table further includes at least one value of each parameter.

In a possible implementation manner, each parameter includes a plurality of values having a priority order, and an index corresponding to each parameter is used to indicate a priority of multiple values of the corresponding parameter.

In a possible implementation manner, the method further includes: if the parameter combination indicated by the at least one index combination does not meet the requirement, the terminal device performs the priority according to the priority of the multiple values of each parameter Establishment and/or binding of a PDU session.

In a possible implementation manner, the method further includes: receiving, by the terminal device, first indication information that is sent by the network device, where the first indication information is used to indicate at least one of the following situations: in the path selection descriptor An index combination is added to the table, the index combination is deleted in the path selection descriptor table, and the index combination is updated in the path selection descriptor table.

In a possible implementation manner, 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 the content in the path selection descriptor table.

In a possible implementation, the method further includes: receiving, by the terminal device, second indication information sent by the network device, where the second indication information is used to indicate adding, updating, or deleting the content in the path descriptor table.

In a possible implementation manner, the at least one parameter includes at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication, and a wireless access type.

In a second aspect, a method for data transmission is provided, the method comprising: configuring, by a network device, a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for a terminal device, the path selection descriptor table Including at least one set of index combinations, each set of index combinations in the at least one set of index combinations including at least one index for indicating a set of parameter combinations including for establishing and/or binding PDUs a value of each parameter in at least one parameter of the session, the at least one index being in one-to-one correspondence with the at least one parameter, the each parameter including at least one value.

In a possible implementation manner, the method further includes: the network device sending, to the terminal device, first indication information, where the first indication information is used to indicate at least one of the following situations: in the path selection descriptor The index combination is added to the table, the index combination is deleted in the path selection descriptor table, and the index combination is updated in the path selection descriptor table.

In a possible implementation manner, the at least one set of index combinations includes a plurality of sets of index combinations, and the path selection descriptor table further includes a priority used by the multiple sets of index combinations.

In a possible implementation, the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination, the first identifier is used to indicate the index. The priority of the combination.

In a possible implementation manner, the path selection descriptor table further includes at least one value of each parameter.

In a possible implementation manner, each parameter includes a plurality of values having a priority order, and an index corresponding to each parameter is used to indicate a priority of multiple values of the corresponding parameter.

In a possible implementation manner, 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 the content in the path selection descriptor table.

In a possible implementation manner, the method further includes: sending, by the network device, second indication information to the terminal device, where the second indication information is used to indicate adding, updating, or deleting content in the path selection descriptor table.

In a possible implementation manner, the at least one parameter includes at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication, and a wireless access type.

In a third aspect, a method for data transmission is provided, the method comprising: establishing, by a terminal device, 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 And/or binding, the path selection descriptor table includes a path selection descriptor identifier for adding, updating, or deleting content in the path selection descriptor table.

In a possible implementation manner, the path selection descriptor table further includes at least one value of each parameter of at least one parameter used to establish and/or bind a PDU session.

In one possible implementation, each of the parameters includes a plurality of values having a priority order.

In a possible implementation manner, the method further includes: receiving, by the terminal device, indication information sent by the network device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.

In a possible implementation manner, the at least one parameter includes at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication, and a wireless access type.

A fourth aspect provides a method for data transmission, the method comprising: configuring, by a network device, a path selection descriptor table corresponding to a first rule in a user equipment path selection policy URSP for a terminal device, the path selection descriptor table A path selection descriptor identifier is included, the path selection descriptor identifier for adding, updating, or deleting content in the path selection descriptor table.

In a possible implementation, the path selection descriptor table further includes at least one value for each parameter of at least one parameter for establishing and/or binding a protocol data unit PDU session.

In one possible implementation, each of the parameters includes a plurality of values having a priority order.

In a possible implementation manner, the method further includes: the network device sending, to the terminal device, indication information, where the indication information is used to indicate that the content in the path selection descriptor table is updated.

In a possible implementation manner, the at least one parameter includes at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication, and a wireless access type.

In a fifth aspect, a terminal device is provided for performing the method of any of the first aspect or the first aspect of the first aspect. In particular, the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.

In a sixth aspect, a network device is provided for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect. In particular, the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.

In a seventh aspect, a terminal device is provided for performing the method in any of the possible implementations of the third aspect or the third aspect above. In particular, the terminal device comprises means for performing the method in any of the possible implementations of the third aspect or the third aspect described above.

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

In a ninth aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.

In a tenth aspect, a network device is provided, the network device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.

In an eleventh aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described third aspect or any of the possible implementations of the third aspect.

According to a twelfth aspect, a network device is provided, the network device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the possible implementations of the fourth aspect or the fourth aspect above.

A thirteenth aspect, a computer storage medium for storing a method in performing the above first aspect or any possible implementation of the first aspect, or any possible implementation of the second aspect or the second aspect above The method of the method, or the method of any of the foregoing third aspect or any of the possible implementations of the third aspect, or the computer software instructions of the method of any of the foregoing fourth aspect or any of the possible implementations of the fourth aspect, comprising A program designed to perform the above aspects.

A fourteenth aspect, a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of any of the above-described first aspect or any of the alternative implementations of the first aspect, or The method of any of the alternative implementations of the second aspect or the second aspect, or the method of any of the foregoing third or third aspect, or any of the foregoing fourth or fourth aspects The method in the implementation.

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 of an application scenario of an embodiment of the present application.

FIG. 2 shows a schematic block diagram of a method for data transmission in an embodiment of the present application.

FIG. 3 shows another schematic block diagram of a method for data transmission in an embodiment of the present application.

FIG. 4 shows still another schematic block diagram of a method for data transmission in an embodiment of the present application.

FIG. 5 shows still another schematic block diagram of a method for data transmission in an embodiment of the present application.

FIG. 6 shows a schematic block diagram of a terminal device of an embodiment of the present application.

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

FIG. 8 is 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 present application.

FIG. 10 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 11 is still another schematic block diagram of a network device according to an embodiment of the present application.

FIG. 12 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 13 shows still another schematic block diagram of a network device according to an embodiment of the present application.

Detailed ways

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

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), LTE system, LTE Frequency Division Duplex (FDD) system, LTE time division duplex (Time) Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G systems, etc. .

In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology. Transmission system, for example, Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC), General Frequency Division Multiplexing (Generalized Frequency Division Multiplexing (OFDM)) Frequency Division Multiplexing (GFDM), Filtered Orthogonal Frequency Division Multiplexing (Filtered-OFDM, F-OFDM) system, and the like.

FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 can include an access network device 110. Access network device 110 may be a device that communicates with the terminal device. 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. Optionally, the access network device 110 may be a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in the NR system, or a cloud radio access network (Cloud Radio). The wireless controller in the Access Network, CRAN), or the access network device may be a relay station, an access point, an in-vehicle device, a wearable device, or a future evolved public land mobile network (PLMN). Network equipment, etc. Optionally, the access network device 110 may also be a base station in an LTE system, for example, an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) device.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the access network device 110. Terminal device 120 can be mobile or fixed. Optionally, the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication. Device, user agent, or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or terminal devices in future evolved PLMNs, and the like.

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

It should be understood that SMF+PGW-C can simultaneously implement the functions that SMF and PGW-C can achieve.

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

Optionally, in the embodiment of the present application, the AMF may obtain the fallback identifier from the radio access network, or may be used to indicate that the first bearer/stream for the terminal device is not successfully established.

1 exemplarily shows an access network device, a core network device, and two terminal devices. Alternatively, the wireless communication system 100 may include multiple access network devices and coverage of each access network device. Other numbers of terminal devices may be included in the scope, 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), and a user plane function (User). Other network entities, such as a Plane Function (UPF) and a Signaling Gateway (SGW), are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

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

S210. The terminal device performs establishment and/or binding of a protocol data unit PDU session according to 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 set of indexes. Combining, each set of index combinations in the at least one set of index combinations includes at least one index for indicating a set of parameter combinations, the parameter combination including at least one parameter for establishing and/or binding a PDU session The value of each parameter, the at least one index is in one-to-one correspondence with the at least one parameter, and each parameter includes at least one value.

Currently, URSP is introduced in the 5G architecture, and the URSP policy specifies the routing strategy 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. The rules in the URSP may include, but are not limited to, including a traffic descriptor, an application identifier, and a network protocol. Protocol, IP) descriptors, non-IP descriptors, and Route Selection descriptor (RSD). Each rule can also have different priority values. The RSD table includes, but is not limited to, a value including at least one parameter for establishing and/or binding a Protocol Data Unit (PDU) session, such as a session and a service continuity mode, and network slice assistance information ( Network Slice Selection Assistance Information (NSSAI), Data Network Name (DNN), non-seamless offload indication, and wireless access type. Each parameter can 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 offload indication as permission, and wireless access type as third generation cooperation. The 3rd Generation Partnership Project (3GPP) is a combination of parameters, session and business continuity mode 1, NSSAI_2, DNN_3, non-seamless offload indication as allowed, and wireless access type as 3rd Generation Partnership Project (3rd Generation Partnership) Project, 3GPP) is another combination of parameters. In the embodiment of the present application, all values of each parameter may be first indexed. For example, the session and business continuity mode have three values, and the session and business continuity mode 1 is represented by index 1, session and business continuity. Mode 2 is represented by index 2, and session and business continuity mode 3 is represented by index 3. Then you can use the index combination to indicate the parameter combination. For example, the index combination is [2;1;2;1;1], assuming that each index in the index combination represents the parameters from left to right: session and business continuity mode, NSSAI, DNN, non-seamless Split indication and wireless access type. Then the parameter combination represented by the index combination [2; 1; 2; 1; 1] is a combination of session and traffic continuity mode 2, NSSAI_1, DNN_2, non-seamless offload indication is allowed, and radio access type is 3GPP. In the embodiment of the present application, at least one index combination may be added to the RSD table, and the terminal device may perform establishment and/or binding of the PDU session according to the parameter value in the parameter combination indicated by the at least one index combination.

Therefore, the method in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

Optionally, in the embodiment of the present application, the terminal device performs the establishment and/or binding of the PDU session according to the path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, including: the terminal The device determines a first index combination from the at least one set of index combinations; the terminal device performs establishment and/or binding of 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 a set of index combinations from at least one set of index combinations, and perform establishment and/or binding of the PDU session by using the parameter values of the parameter combinations indicated by the selected index combination. A priority may also be assigned to each set of index combinations in the RSD table, for example, the RSD table includes three sets of index combinations, [1; 2; 4; 2; 1], [2; 1; 2; 1; 1] and [2;5;1;1;2], where [1;2;4;2;1] has a priority of 1, and [2;1;2;1;1] has a priority of 2 , [2; 5; 1; 1; 2] has a priority of 3. The terminal device may select a set of index combinations from the three sets of index combinations according to the priority, and perform establishment and/or binding of the PDU session according to the value of the parameter combination indicated by the index combination.

Optionally, in the 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, and the first identifier is used to indicate The priority used by this index combination.

Further, each set of index combinations can be assigned an identifier that represents the priority of each set of index combinations. For example, the sign of [1; 2; 4; 2; 1] is 1, the sign of [2; 1; 2; 1; 1] is 2 and the sign of [2; 5; 1; 1; 2] is 3. It can be considered that the identifier of the [1; 2; 4; 2; 1] is 1 and the priority is 1, and the identifier of [2; 1; 2; 1; 1] is 2, which represents the priority of 2, [2; The sign of 5;1;1;2] is 3 and the priority is 3.

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

Optionally, in the embodiment of the present application, the method further includes: if the parameter combination indicated by the at least one index combination does not meet the requirement, the terminal device according to the priority of the multiple values of the each parameter, The establishment and/or binding of the PDU session is performed.

As mentioned above, each parameter used to establish and/or bind 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 to say, the value of the session and business continuity mode can be increased in the row of the added session and the business continuity mode in the column, such as session and business continuity mode 1, session and business continuity mode 2, and session and Business continuity model 3. And the priority of the multiple values of each parameter may also be agreed. When all the index combinations in the RSD table do not meet the requirements or the index combination is not included in the RSD table, the terminal device may directly increase according to the RSD table. The plurality of values of the respective parameters of the column are used to establish and/or bind the PDU session. Further, in the case that multiple values of a certain parameter have priority, the establishment and/or binding of the PDU session may also be performed according to the priority of the multiple values of the parameter.

Optionally, in the embodiment of the present application, the method further includes: receiving, by the terminal device, the first indication information sent by the network device, where the first indication information is used to indicate at least one of the following situations: selecting the path An index combination is added to the descriptor table, the index combination is deleted in the path selection descriptor table, and the index combination is updated in the path selection descriptor table.

In the embodiment of the present application, the network device may indicate to update a certain rule in the URSP policy. Specifically, the network device may instruct the terminal device to add a set of index combinations in the RSD table, and delete a set of indexes in the RSD table. Combine, or update a set of index combinations in the RSD table to a set 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 by using the first identifier. The flexible use of the URSP policy can be further achieved by updating through an index without updating specific parameter values.

Optionally, in the 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 adding, updating, or deleting the content in the path descriptor table.

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 structure and/or content of the existing RSD table, but may have the same function as the existing RSD table. . The embodiments of the present application are not limited thereto.

The network device may configure an RSD identifier for each RSD table. When the network device wants to update the content of the RSD table stored by the current terminal device, the network device may send the RSD identifier of the target RSD table to the terminal device, and the terminal device may The content of the stored RSD table is updated to the content of the RSD table corresponding to the target RSD identifier transmitted by the network device.

By introducing an RSD identifier, the network can be instructed to selectively add, update, or delete one or more RSDs within the same rule on the terminal device without having to update the entire rule.

FIG. 3 shows a schematic block diagram of a method 300 for data transmission in accordance with an embodiment of the present application. As shown in FIG. 3, the method 300 includes the following parts or all of the contents:

S310. The network device configures, by the network device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes at least one set of index combinations, each of the at least one set of index combinations. The index combination includes at least one index for indicating a set of parameter combinations including values for each of at least one parameter for establishing and/or binding a PDU session, the at least one index and The at least one parameter is in one-to-one correspondence, and each parameter includes at least one value.

Therefore, the method in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

Optionally, in the embodiment of the present application, the method further includes: the network device sending the first indication information to the terminal device, where the first indication information is used to indicate at least one of the following situations: selecting the path An index combination is added to the descriptor table, the index combination is deleted in the path selection descriptor table, and the index combination is updated in the path selection descriptor table.

Optionally, in the embodiment of the present application, the at least one set of index combinations includes multiple sets of index combinations, and the path selection descriptor table further includes a priority used by the multiple sets of index combinations.

Optionally, in the 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, and the first identifier is used to indicate The priority used by this index combination.

Optionally, in the 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 parameter includes multiple values having a priority order, and an index corresponding to each parameter is used to indicate a priority of multiple values of the corresponding parameter.

Optionally, in the 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 the content in the path selection descriptor table.

Optionally, in the embodiment of the present application, the method further includes: receiving, by the terminal device, second indication information sent by the network device, where the second indication information is used to indicate adding, updating, or deleting content in the path descriptor table. .

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

It should be understood that the interaction between the network device and the terminal device described by the network device and related features, functions, and the like correspond to related features and functions of the terminal device. The related content has been described in detail in the foregoing method 200 and method 300. For brevity, no further details are provided herein.

It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes any limitation.

FIG. 4 shows a schematic block diagram of a method 400 for data transmission in accordance with an embodiment of the present application. As shown in FIG. 4, the method 400 includes the following parts or all of the contents:

S410. The terminal device performs establishment and/or binding of a protocol data unit PDU session according to 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. Identification, the path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.

Therefore, the method in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

Optionally, in the embodiment of the present application, each parameter includes multiple values having a priority order.

Optionally, in the embodiment of the present application, the method further includes: the terminal device receiving the indication information sent by the network device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.

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

FIG. 5 shows a schematic block diagram of a method 500 for data transmission in accordance with an embodiment of the present application. As shown in FIG. 5, the method 500 includes the following parts or all of the contents:

S510. The network device configures, by the network device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, where the path selection descriptor identifier is used for adding, Update or delete the contents of the path selection descriptor table.

Therefore, the method in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

Optionally, in the embodiment of the present application, each parameter includes multiple values having a priority order.

Optionally, in the embodiment of the present application, the method further includes: the terminal device receiving the indication information sent by the network device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.

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

It should be understood that the interaction between the network device and the terminal device described by the network device and related features, functions, and the like correspond to related features and functions of the terminal device. The related content has been described in detail in the above method 200. For brevity, no further details are provided herein.

It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes any limitation.

The method for data transmission according to an embodiment of the present application is described in detail above. Hereinafter, an apparatus for data transmission according to an embodiment of the present application will be described with reference to FIG. 6 to FIG. 13, and the technical features described in the method embodiment are applicable. In the following device examples.

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 device 600 includes:

The processing unit 610 is configured to perform establishment and/or binding of a protocol data unit PDU session according to 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 a group index combination, each set of index combinations in the at least one set of index combinations including at least one index, the set of index combinations being used to indicate a set of parameter combinations, the parameter combination comprising at least one for establishing and/or binding a PDU session a value of each parameter in a parameter, the at least one index being in one-to-one correspondence with the at least one parameter, the each parameter including at least one value.

Therefore, the terminal device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

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

Optionally, in the 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, and the first identifier is used to indicate The priority used by this index combination.

Optionally, in the 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 parameter includes multiple values having a priority order, and an index corresponding to each parameter is used to indicate a priority of multiple values of the corresponding parameter.

Optionally, in the embodiment of the present application, the processing unit is further configured to: when the parameter combination indicated by the at least one index combination does not meet the requirement, the terminal device preferentially performs multiple values according to the each parameter. Level, the establishment and/or binding of the PDU session.

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

Optionally, in the 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 the content in the path selection descriptor table.

Optionally, in the embodiment of the present application, the terminal device further includes: a receiving unit, configured to receive second indication information that is sent by the network device, where the second indication information is used to indicate adding, updating, or deleting the path descriptor table. In the content.

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

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 method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 600 respectively implement the terminal in the method of FIG. 2 The corresponding process of the device is not described here for brevity.

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

The configuration unit 710 is configured to configure, for the terminal device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes at least one set of index combinations, where the at least one set of index combinations Each set of index combinations includes at least one index for indicating a set of parameter combinations including values for each of at least one parameter for establishing and/or binding a PDU session, the at least one The index is in one-to-one correspondence with the at least one parameter, and each parameter includes at least one value.

Therefore, the network device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

Optionally, in the embodiment of the present application, the at least one set of index combinations includes multiple sets of index combinations, and the path selection descriptor table further includes a priority used by the multiple sets of index combinations.

Optionally, in the 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, and the first identifier is used to indicate The priority used by this index combination.

Optionally, in the 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 parameter includes multiple values having a priority order, and an index corresponding to each parameter is used to indicate a priority of multiple values of the corresponding parameter.

Optionally, in the 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 the content in the path selection descriptor table.

Optionally, in the embodiment of the present application, the network device further includes: a sending unit, configured to send, to the terminal device, second indication information, where the second indication information is used to indicate adding, updating, or deleting the path selection descriptor. The contents of the table.

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

It should be understood that the network device 700 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 700 respectively implement the network in the method of FIG. The corresponding process of the device is not described here for brevity.

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

The processing unit 810 is configured to perform establishment and/or binding of a protocol data unit PDU session according to 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 path selection A descriptor identifier that is used to add, update, or delete content in the path selection descriptor table.

Therefore, the terminal device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

Optionally, in the embodiment of the present application, each parameter includes multiple values having a priority order.

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

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

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 method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 800 respectively implement the terminal in the method of FIG. 4 The corresponding process of the device is not described here for brevity.

FIG. 9 shows a schematic block diagram of a network device 900 in accordance with an embodiment of the present application. As shown in FIG. 9, the network device 900 includes:

The configuration unit 910 is configured to configure, for the terminal device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, where the path selection descriptor identifier is used for Add, update, or delete the contents of the path selection descriptor table.

Therefore, the network device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

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

Optionally, in the embodiment of the present application, each parameter includes multiple values having a priority order.

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

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

It should be understood that the network device 900 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 900 respectively implement the terminal in the method of FIG. The corresponding process of the device is not described here for brevity.

As shown in FIG. 10, the embodiment of the present application further provides a terminal device 1000, which may be the terminal device 600 in FIG. 6, which can be used to execute the content of the terminal device corresponding to the method 200 in FIG. . 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 can be connected by a bus system. The memory 1040 is for storing programs, instructions or codes. The processor 1030 is configured to execute a program, an instruction or a code in the memory 1040 to control the input interface 1010 to receive a signal, control the output interface 1020 to send a signal, and complete the operations in the foregoing method embodiments.

Therefore, the terminal device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

It should be understood that, in the embodiment of the present application, the processor 1030 may be a central processing unit (CPU), and the processor 1030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1040 can include read only memory and random access memory and provides instructions and data to the processor 1030. A portion of the memory 1040 may also include a non-volatile random access memory. For example, the memory 1040 can also store information of the device type.

In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of the hardware in the processor 1030 or an instruction in the form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1040, and the processor 1030 reads the information in the memory 1040 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

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

As shown in FIG. 11, the embodiment of the present application further provides a network device 2000, which 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. . The network device 2000 includes an input interface 2010, an output interface 2020, a processor 2030, and a memory 2040. The input interface 2010, the output interface 2020, the processor 2030, and the memory 2040 can be connected by a bus system. The memory 2040 is for storing programs, instructions or code. The processor 2030 is configured to execute a program, an instruction or a code in the memory 2040 to control the input interface 2010 to receive a signal, control the output interface 2020 to transmit a signal, and complete the operations in the foregoing method embodiments.

Therefore, the network device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

It should be understood that, in the embodiment of the present application, the processor 2030 may be a central processing unit (CPU), and the processor 2030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 2040 can include read only memory and random access memory and provides instructions and data to the processor 2030. A portion of the memory 2040 may also include a non-volatile random access memory. For example, the memory 2040 can also store information of the device type.

In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 2030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 2040, and the processor 2030 reads the information in the memory 2040 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

In a specific implementation, the transmitting unit in the network device 700 can be implemented by the output interface 2020 in FIG. 11, and the configuration unit in the network device 700 can be implemented by the processor 2030 in FIG.

As shown in FIG. 12, the embodiment of the present application further provides a terminal device 3000, which 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. . The terminal device 3000 includes an input interface 3010, an output interface 3020, a processor 3030, and a memory 3040. The input interface 3010, the output interface 3020, the processor 3030, and the memory 3040 can be connected by a bus system. The memory 3040 is for storing programs, instructions or code. The processor 3030 is configured to execute a program, an instruction or a code in the memory 3040 to control the input interface 3010 to receive a signal, control the output interface 3020 to send a signal, and complete the operations in the foregoing method embodiments.

Therefore, the terminal device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

It should be understood that, in the embodiment of the present application, the processor 3030 may be a central processing unit (CPU), and the processor 3030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 3040 can include read only memory and random access memory and provides instructions and data to the processor 3030. A portion of the memory 3040 can also include a non-volatile random access memory. For example, the memory 3040 can also store information of the device type.

In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 3030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 3040, and the processor 3030 reads the information in the memory 3040 and combines its hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

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

As shown in FIG. 13 , the embodiment of the present application further provides a network device 4000, which 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. The input interface 4010, the output interface 4020, the processor 4030, and the memory 4040 can be connected by a bus system. The memory 4040 is for storing programs, instructions or code. The processor 4030 is configured to execute a program, an instruction or a code in the memory 4040 to control the input interface 4010 to receive a signal, control the output interface 4020 to transmit a signal, and complete the operations in the foregoing method embodiments.

Therefore, the network device in the embodiment of the present application is beneficial to realize the saving and flexible use of the URSP policy space.

It should be understood that, in the embodiment of the present application, the processor 4030 may be a central processing unit (CPU), and the processor 4030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 4040 can include read only memory and random access memory and provides instructions and data to the processor 4030. A portion of the memory 4040 can also include a non-volatile random access memory. For example, the memory 4040 can also store information of the device type.

In the implementation process, each content of the above method may be completed by an integrated logic circuit of hardware in the processor 4030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 4040, and the processor 4030 reads the information in the memory 4040 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

In a specific embodiment, the transmitting unit in the network device 900 can be implemented by the output interface 4020 in FIG. 13, and the configuration unit in the network device 900 can be implemented by the processor 4030 in FIG.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of protection of the claims.

Claims (60)

1. A method for data transmission, comprising:

   The terminal device performs establishment and/or binding of a protocol data unit PDU session according to 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 set of index combinations Each set of index combinations in the at least one set of index combinations includes at least one index, the set of index combinations being used to indicate a set of parameter combinations, the parameter combinations including at least one for establishing and/or binding a PDU session a value of each parameter in a parameter, the at least one index being in one-to-one correspondence with the at least one parameter, the each parameter including at least one value.
2. The method according to claim 1, wherein the terminal device performs establishment and/or binding of a PDU session according to a path selection descriptor table corresponding to a first rule in the user equipment path selection policy URSP, including :

   Determining, by the terminal device, a first index combination from the at least one set of index combinations;

   The terminal device performs establishment and/or binding of the PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.
3. The method according to claim 2, wherein the at least one set of index combinations comprises a plurality of sets of index combinations, and the path selection descriptor table further comprises a priority used by the plurality of sets of index combinations, the terminal The device determines a first index combination from the at least one set of index combinations, including:

   Determining, by the terminal device, the first index combination from the plurality of sets of index combinations according to the priority.
4. The method according to claim 3, wherein the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination in a one-to-one correspondence, The first identifier is used to indicate the priority of the index combination use.
5. The method according to any one of claims 1 to 4, characterized in that the path selection descriptor table further comprises at least one value of each of the parameters.
6. The method according to claim 5, wherein each of the parameters comprises a plurality of values having a priority order, and an index corresponding to each of the parameters is used to indicate a priority of a plurality of values of the respective parameters.
7. The method of claim 6 wherein the method further comprises:

   In a case that none of the parameter combinations indicated by the at least one index combination meets the requirement, the terminal device performs establishment and/or binding of the PDU session according to priorities of multiple values of each parameter.
8. The method according to any one of claims 1 to 7, wherein the method further comprises:

   Receiving, by the terminal device, first indication information sent by the network device, where the first indication information is used to indicate at least one of: adding an index combination in the path selection descriptor table, and selecting the path in the path selection descriptor table The index combination is deleted in the descriptor table and the index combination is updated in the path selection descriptor table.
9. The method according to any one of claims 1 to 8, wherein the path selection descriptor table further comprises a path selection descriptor identifier, the path selection descriptor identifier being used for adding, updating or deleting The contents of the path selection descriptor table.
10. The method of claim 9 wherein the method further comprises:

    The terminal device receives second indication information that is sent by the network device, where the second indication information is used to indicate adding, updating, or deleting content in the path descriptor table.
11. The method according to any one of claims 1 to 10, wherein the at least one parameter comprises at least one of the following parameters: session or business continuity mode, data network name, network slice assistance information, non Seamless offload indication and wireless access type.
12. A method for data transmission, comprising:

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

    Transmitting, by the network device, first indication information to the terminal device, where the first indication information is used to indicate at least one of: adding an index combination in the path selection descriptor table, and selecting a path selection in the path selection descriptor table The index combination is deleted from the list and the index combination is updated in the path selection descriptor table.
14. 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 the path select descriptor table further comprises a priority used by the plurality of sets of index combinations.
15. The method according to claim 14, wherein the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination in a one-to-one correspondence, The first identifier is used to indicate the priority of the index combination use.
16. The method according to any one of claims 12 to 15, wherein the path selection descriptor table further includes at least one value of each of the parameters.
17. The method of claim 16, wherein each of the parameters comprises a plurality of values having a priority order, and an index corresponding to each of the parameters is used to indicate a priority of a plurality of values of the respective parameters.
18. The method according to 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 for adding, updating or deleting The contents of the path selection descriptor table.
19. The method of claim 18, wherein the method further comprises:

    The network device sends second indication information to the terminal device, where the second indication information is used to indicate adding, updating, or deleting content in the path selection descriptor table.
20. The method according to any one of claims 12 to 19, wherein the at least one parameter comprises at least one of the following parameters: session or business continuity mode, data network name, network slice assistance information, non Seamless offload indication and wireless access type.
21. A method for data transmission, comprising:

    The terminal device performs establishment and/or binding of a protocol data unit PDU session according to 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 The path selection descriptor identifier is used to add, update, or delete content in the path selection descriptor table.
22. The method of claim 21, wherein the path selection descriptor table further comprises at least one value for each parameter of at least one parameter for establishing and/or binding a PDU session.
23. The method of claim 21 or 22, wherein each of said parameters comprises a plurality of values having a priority order.
24. The method according to any one of claims 21 to 23, wherein the method further comprises:

    The terminal device receives the indication information sent by the network device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.
25. The method according to claim 22 or 23, wherein the at least one parameter comprises at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, a non-seamless offload indication And wireless access type.
26. A method for data transmission, comprising:

    The network device configures, for the terminal device, a path selection descriptor table corresponding to the 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 for adding, Update or delete the content in the path selection descriptor table.
27. The method of claim 26, wherein the path selection descriptor table further comprises at least one value for establishing and/or binding each of the at least one parameter of the protocol data unit PDU session.
28. The method of claim 27 wherein each of said parameters comprises a plurality of values having a priority order.
29. The method according to any one of claims 26 to 28, wherein the method further comprises:

    The network device sends 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.
30. The method according to claim 27 or 28, wherein the at least one parameter comprises at least one of the following parameters: a session or business continuity mode, a data network name, network slice assistance information, a non-seamless offload indication And wireless access type.
31. A terminal device, comprising:

    a processing unit, configured to perform establishment and/or binding of a protocol data unit PDU session according to 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 a group index combination, each set of index combinations in the at least one set of index combinations including at least one index, the set of index combinations being used to indicate a set of parameter combinations, the parameter combinations comprising PDUs for establishing and/or binding a value of each parameter in at least one parameter of the session, the at least one index being in one-to-one correspondence with the at least one parameter, the each parameter including at least one value.
32. The terminal device according to claim 31, wherein the processing unit is specifically configured to:

    Determining a first index combination from the at least one set of index combinations;

    Establishing and/or binding a PDU session according to the value of each parameter in the parameter combination indicated by the first index combination.
33. The terminal device according to claim 32, wherein the at least one set of index combinations comprises a plurality of sets of index combinations, and the path selection descriptor table further includes a priority used by the plurality of sets of index combinations, The processing unit determines the first index combination from the at least one set of index combinations, including:

    Determining the first index combination from the plurality of sets of index combinations according to the priority.
34. The terminal device according to claim 33, wherein the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination in a one-to-one correspondence. The first identifier is used to indicate the priority of the index combination use.
35. The terminal device according to any one of claims 31 to 34, characterized in that the path selection descriptor table further includes at least one value of each of the parameters.
36. The terminal device according to claim 35, wherein each of the parameters includes a plurality of values having a priority order, and an index corresponding to each of the parameters is used to indicate a priority of a plurality of values of the corresponding parameter. .
37. The terminal device according to claim 36, wherein the processing unit is further configured to:

    If the parameter combination indicated by the at least one index combination does not meet the requirement, the terminal device performs establishment and/or binding of the PDU session according to the priority of the multiple values of each parameter.
38. The terminal device according to any one of claims 31 to 37, wherein the terminal device further comprises:

    a receiving unit, configured to receive first indication information that is sent by the network device, where the first indication information is used to indicate at least one of: adding an index combination in the path selection descriptor table, in the path The index combination is deleted from the selection descriptor table and the index combination is updated in the path selection descriptor table.
39. The terminal device according to any one of claims 31 to 38, characterized in that the path selection descriptor table further includes a path selection descriptor identifier for adding, updating or deleting The path selects the content in the descriptor table.
40. The terminal device according to claim 39, wherein the terminal device further comprises:

    And a receiving unit, configured to receive second indication information sent by the network device, where the second indication information is used to indicate adding, updating, or deleting content in the path descriptor table.
41. The terminal device according to any one of claims 31 to 40, wherein the at least one parameter comprises at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, Non-seamless offload indication and wireless access type.
42. A network device, comprising:

    a configuration unit, configured to configure, for the terminal device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes at least one set of index combinations, where the at least one set of index combinations Each set of index combinations includes at least one index, each set of index combinations for indicating a set of parameter combinations, the parameter combinations including values for each of at least one parameter of 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 includes at least one value.
43. The network device according to claim 42, wherein the network device further comprises:

    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: adding an index combination, selecting a path in the path selection descriptor table The index combination is deleted in the descriptor table and the index combination is updated in the path selection descriptor table.
44. The network device according to claim 42 or 43, wherein the at least one set of index combinations comprises a plurality of sets of index combinations, and the path selection descriptor table further comprises a priority used by the plurality of sets of index combinations.
45. The network device according to claim 44, wherein the path selection descriptor table includes at least one first identifier, and the at least one first identifier is used to identify the at least one index combination in a one-to-one correspondence. The first identifier is used to indicate the priority of the index combination use.
46. The network device according to any one of claims 42 to 45, wherein the path selection descriptor table further includes at least one value of each of the parameters.
47. The network device according to claim 46, wherein each of said parameters includes a plurality of values having a priority order, and an index corresponding to said each parameter is used to indicate a priority of a plurality of values of respective parameters .
48. The network device according to any one of claims 42 to 47, wherein the path selection descriptor table further includes a path selection descriptor identifier, the path selection descriptor identifier being used for adding, updating or deleting The path selects the content in the descriptor table.
49. The network device according to claim 48, wherein the network device further comprises:

    And a sending unit, configured to send, to the terminal device, second indication information, where the second indication information is used to indicate adding, updating, or deleting content in the path selection descriptor table.
50. The network device according to any one of claims 42 to 49, wherein the at least one parameter comprises at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, Non-seamless offload indication and wireless access type.
51. A terminal device, comprising:

    a processing unit, configured to perform establishment and/or binding of a protocol data unit PDU session according to 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 path selection A descriptor identifier, the path selection descriptor identifier for adding, updating, or deleting content in the path selection descriptor table.
52. The terminal device according to claim 51, characterized in that said path selection descriptor table further comprises at least one value for each parameter of at least one parameter for establishing and/or binding a PDU session.
53. The terminal device according to claim 51 or 52, wherein each of said parameters includes a plurality of values having a priority order.
54. The terminal device according to any one of claims 51 to 53, wherein the terminal device further comprises:

    And a receiving unit, configured to receive indication information sent by the network device, where the indication information is used to indicate that the content in the path selection descriptor table is updated.
55. The terminal device according to claim 52 or 53, wherein the at least one parameter comprises at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, and a non-seamless offload. Indication and wireless access type.
56. A network device, comprising:

    a configuration unit, configured to configure, for the terminal device, a path selection descriptor table corresponding to the first rule in the user equipment path selection policy URSP, where the path selection descriptor table includes a path selection descriptor identifier, where the path selection descriptor identifier is used Adding, updating, or deleting content in the path selection descriptor table.
57. The network device according to claim 56, wherein said path selection descriptor table further comprises at least one value for establishing and/or binding each of at least one parameter of a protocol data unit PDU session .
58. The network device of claim 57, wherein each of said parameters comprises a plurality of values having a priority order.
59. The network device according to any one of claims 56 to 58, wherein the network device further comprises:

    And a sending unit, configured to send, to the terminal device, indication information, where the indication information is used to indicate that the content in the path selection descriptor table is updated.
60. The network device according to claim 57 or 58, wherein the at least one parameter comprises at least one of the following parameters: a session or service continuity mode, a data network name, network slice assistance information, and a non-seamless offload. Indication and wireless access type.

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