WO2024104077A1 - 信息传输方法、装置、通信设备及可读存储介质 - Google Patents

信息传输方法、装置、通信设备及可读存储介质 Download PDF

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Publication number
WO2024104077A1
WO2024104077A1 PCT/CN2023/126996 CN2023126996W WO2024104077A1 WO 2024104077 A1 WO2024104077 A1 WO 2024104077A1 CN 2023126996 W CN2023126996 W CN 2023126996W WO 2024104077 A1 WO2024104077 A1 WO 2024104077A1
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Prior art keywords
information
psi
policy
terminal
content corresponding
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PCT/CN2023/126996
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English (en)
French (fr)
Inventor
程思涵
吕华章
张奕忠
王文
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维沃移动通信有限公司
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Publication of WO2024104077A1 publication Critical patent/WO2024104077A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to an information transmission method, apparatus, communication equipment and readable storage medium.
  • the Policy Control Function is a core network device of the fifth generation mobile communication technology (5th Generation, 5G).
  • PCF can manage the policy information stored in the terminal (for example, the user equipment (UE)), such as adding, deleting, modifying, etc. the policy information stored in the UE through the terminal policy management (UE policy management) process.
  • UE policy management terminal policy management
  • PCF sends policy information to the UE, it is sent in the form of policy sections.
  • Each policy section corresponds to an identifier, namely the Policy Section Identifier (PSI).
  • PSI Policy Section Identifier
  • the embodiments of the present application provide an information transmission method, apparatus, communication device and readable storage medium to solve the problem of how to update the policy information locally stored in the UE.
  • a method for transmitting information comprising:
  • a first core network element generates first information, where the first information includes at least one first policy segmentation identifier (PSI) and policy segmentation content corresponding to the at least one first PSI;
  • PSI policy segmentation identifier
  • the first core network element sends first policy information to the terminal, where the first policy information includes the first information, and the first policy information is used to update the policy information stored in the terminal.
  • an information transmission method comprising:
  • the terminal receives first policy information sent by a first core network network element, where the first policy information includes first information, where the first information includes at least one first PSI and policy segment content corresponding to the at least one first PSI, and the first information is generated by the first core network network element;
  • the terminal updates the stored policy information according to the first policy information.
  • an information transmission device comprising:
  • a first generating module configured to generate first information, wherein the first information includes at least one first policy segmentation identifier (PSI) and policy segmentation content corresponding to the at least one first PSI;
  • PSI policy segmentation identifier
  • the first sending module is used to send first policy information to the terminal, where the first policy information includes the first information, and the first policy information is used to update the policy information stored in the terminal.
  • an information transmission device comprising:
  • a first receiving module configured to receive first policy information sent by a first core network network element, where the first policy information includes first information, where the first information includes at least one first PSI and policy segment content corresponding to the at least one first PSI, and where the first information is generated by the first core network network element;
  • An updating module is used to update the saved policy information according to the first policy information.
  • a communication device comprising: a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect or the second aspect.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the second aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.
  • a communication system which includes a terminal and a network side device, wherein the terminal is used to execute the steps of the method described in the first aspect or the second aspect, and the network side device is used to execute the steps of the method described in the first aspect or the second aspect.
  • the terminal can use the received first policy information to update the locally stored policy information. For example, in a switching scenario between base stations or other scenarios, the terminal can update the locally stored policy information.
  • FIG1 is a schematic diagram of a terminal registration process
  • FIG2 is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present application.
  • FIG3 is a flowchart of an information transmission method according to an embodiment of the present application.
  • FIG4 is a second flowchart of the information transmission method provided in an embodiment of the present application.
  • FIG5 is a third flowchart of the information transmission method provided in an embodiment of the present application.
  • FIG6 is a fourth flowchart of the information transmission method provided in an embodiment of the present application.
  • FIG7 is a fifth flowchart of the information transmission method provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of an information transmission device according to an embodiment of the present application.
  • FIG9 is a second schematic diagram of the information transmission device provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of a terminal provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of a network side device provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a communication device provided in an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, but not to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/” generally indicates that the objects associated with each other are in an "or” relationship.
  • the term “indication” in the specification and claims of the present application can be either an explicit indication or an implicit indication.
  • an explicit indication can be understood as the sender explicitly notifying the receiver of the operation or request result to be performed in the indication sent;
  • an implicit indication can be understood as the receiver making a judgment based on the indication sent by the sender and determining the operation or request result to be performed based on the judgment result.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR new radio
  • PCF Policy Control Function
  • PCF is a device in the core network of the fifth generation mobile communication technology (5th Generation, 5G).
  • PCF can manage the policy information stored in the terminal (for example, User Equipment (UE)), such as adding, deleting, modifying, etc. the policy information stored in the UE through the terminal policy management (UE policy management) process.
  • UE User Equipment
  • UE policy management UE policy management
  • Policy segments Policy Each policy section corresponds to an identifier, namely, a Policy Section Identifier (PSI).
  • PSI Policy Section Identifier
  • the policy section can include the following types of information: Access Network Discovery & Selection Policy (ANDSP), User Route Selection Policy (URSP), Vehicle-to-everything Policy (V2XP), and Proximity-based Services Policy (ProSeP).
  • ANDSP Access Network Discovery & Selection Policy
  • URSP User Route Selection Policy
  • V2XP Vehicle-to-everything Policy
  • ProSeP Proximity-based Services Policy
  • URSP rule is a policy defined by the 3rd Generation Partnership Project (3GPP) and sent to the UE.
  • the UE can match the application (APP) to a specific PDU session. For example, when an application is started on the UE, the UE will match it from high to low according to the priority of each URSP rule.
  • APP application
  • the parameters of the protocol data unit (PDU) session contained in the URSP rule will be used to create a new PDU session for the UE, and the existing PDU session that matches the parameters will be used to transmit data for the APP.
  • PDU protocol data unit
  • PCF puts one or more policy information that needs to be sent to UE, such as URSP rule, into a policy section, and passes the policy information to UE in the form of a policy section.
  • Each policy section has an identifier: PSI (Policy Section Identifier).
  • PSI Policy Section Identifier
  • PCF sends all policy information that needs to be sent to UE, such as URSP rule, to UE through one or more policy sections.
  • each policy section contains 1 PSI and the policy section content corresponding to the PSI.
  • the UE When the UE sends a registration message to the network, it can carry the PSI list it has saved to synchronize policy information with the network.
  • the UE registration process is shown in Figure 1:
  • Step 101 The UE initiates a registration request, which includes a terminal policy container (UE Policy Container).
  • UE Policy Container includes the following content:
  • Step 102 The Access and Mobility Management Function (AMF) sends the UE Policy Container to the PCF through the terminal policy control create (Npcf_UEPolicyControl Create) message.
  • AMF Access and Mobility Management Function
  • Step 103 PCF creates a message (Nudr_DM_Create) through data management to save the PSI information to the Unified Data Repository (UDR). At the same time, it saves the OSId and information on whether ANDSP is supported to the UDR.
  • Step 4 The UDR replies with a response message.
  • Step 5 PCF replies with a response message.
  • Step 6 AMF responds with a registration acceptance message.
  • FIG2 is a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • the wireless communication system includes a terminal 21 and network side equipment 22.
  • the terminal 21 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device , robots, wearable devices (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminals (Pedestrian User Equipment, PUE), smart homes (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), ATMs or self-service machines and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, smart ankle
  • the terminal involved in this application can also be a chip in the terminal, such as a modem chip, a system-on-chip (SoC). It should be noted that the specific type of terminal 21 is not limited in the embodiments of this application.
  • the network side equipment 22 may include access network equipment or core network equipment, wherein the access network equipment may also be called wireless access network equipment, wireless access network (Radio Access Network, RAN), wireless access network function or wireless access network unit.
  • the access network equipment may include base stations, wireless local area networks (WLAN) access points or wireless fidelity (WiFi) nodes, etc.
  • the base station may be called Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B, home evolved Node B, Transmitting Receiving Point (TRP) or some other suitable term in the field.
  • the base station is not limited to specific technical vocabulary. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access and mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc.
  • MME Mobility
  • an embodiment of the present application provides an information transmission method, which is applied to a first core network device.
  • the first core external network device includes but is not limited to: a PCF.
  • the specific steps include: step 301 and step 302 .
  • Step 301 A first core network element generates first information, where the first information includes at least one first PSI and policy section content corresponding to the at least one first PSI;
  • the above-mentioned first information may also be referred to as a first PSI list, which includes at least one first PSI and a policy segmentation content corresponding to the at least one first PSI.
  • the policy segmentation content in this article may also be referred to as terminal policy segmentation content (UE policy section content).
  • the first information may include: PSI-1, the policy segment content corresponding to the PSI-1, PSI-2, the policy segment content corresponding to the PSI-2, PSI-3, and the policy segment content corresponding to the PSI-3, as shown in Table 1.
  • Table 1 Contents of the first message.
  • PSI can be composed of two parts: Public Land Mobile Network (PLMN) identifier (ID) and Policy Section Code (PSC).
  • PLMN ID is composed of Mobile Network Code (MNC) and Mobile Country Code (MCC).
  • MNC Mobile Network Code
  • MCC Mobile Country Code
  • PSI can also be called UE Policy Section Identifier (UPSI).
  • UPSI UE Policy Section Identifier
  • the first core network element may generate the first information.
  • Scenario 1 The UE replaces the Subscriber Identity Module (SIM) card or purchases a new terminal device, such as a mobile phone.
  • SIM Subscriber Identity Module
  • the PSI list and the policy section content corresponding to each PSI are not saved in the UE, so the UE will not carry the PSI list during the registration process.
  • the PCF will assume that the policy information is not saved in the UE based on the fact that the UE does not carry the PSI list, and the PCF further believes that the policy information corresponding to the UE saved in the UDR is invalid information.
  • the PCF will not obtain information from the UDR, but will generate new policy information by itself and send the newly generated policy information to the UE.
  • the policy information includes at least one PSI and the policy section content corresponding to each PSI.
  • Scenario 2 When the UE moves in a connected state, a handover will occur between base stations. After the handover is completed, the UE will perform a mobility registration process, and the PSI list will not be carried during the mobility registration process.
  • scenario in which the first core network element generates the first information is not limited to the above two scenarios.
  • Step 302 The first core network element sends first policy information to the terminal, where the first policy information includes the first information, and the first policy information is used to update the policy information stored in the terminal.
  • the first policy information may also be referred to as a first terminal policy container.
  • the policy information may also be referred to as a terminal policy container (UE Policy Container).
  • the policy information may include at least one PSI and a policy corresponding to each PSI. section content.
  • the method further includes:
  • the first core network element obtains second information from the second core network element, where the second information includes at least one second PSI of the terminal stored by the second core network element and policy segment content corresponding to the at least one second PSI;
  • the second information may also be referred to as a second PSI list, which includes at least one second PSI and the policy segmentation content corresponding to the second PSI.
  • the second information may include PSI-1, the policy segmentation content corresponding to the PSI-1, PSI-2, and the policy segmentation content corresponding to the PSI-2, as shown in Table 2.
  • Table 2 Contents of the second message.
  • the first core network element obtains third information according to the first information and the second information
  • the first policy information also includes the third information, the third information includes at least one third PSI and the policy segmentation content corresponding to the at least one third PSI, and the policy segmentation content is empty, or the third information includes at least one third PSI, and the third information does not include the policy segmentation content corresponding to the at least one third PSI; the at least one third PSI is included in the second information and not included in the first information.
  • the third information includes at least one third PSI, and the third information does not include policy segment content corresponding to the at least one third PSI. It can be understood that the third information only includes at least one third PSI.
  • the third information may also be referred to as a third PSI list, which includes at least one third PSI and a policy segmentation content corresponding to the third PSI, the policy segmentation content is set to empty, or the third PSI list only includes at least one third PSI.
  • the third information includes the content shown in Table 3.
  • Table 3 Contents of the third information.
  • the third information includes content as shown in Table 4.
  • Table 4 Contents of the third information.
  • the above-mentioned second core network network element includes but is not limited to UDR.
  • the method further includes:
  • the first core network element obtains, from the second core network element, information indicating whether the terminal supports ANDSP;
  • the first core network element In a case where the terminal supports ANDSP, the first core network element generates an ANDSP
  • the first core network element sends the ANDSP to the terminal.
  • the first policy information further includes: fourth information, where the fourth information is used to indicate at least one of the following:
  • the terminal stores the first information
  • the fourth information is used to instruct the terminal to save only the received first information.
  • the terminal deletes at least one PSI other than the first PSI contained in the first information and policy segment contents corresponding to the other PSIs.
  • the fourth information is used to instruct the terminal to delete other PSIs stored locally and not included in the first information and the policy segment content corresponding to the PSIs.
  • the terminal deleting other PSIs except at least one first PSI contained in the first information and the policy segment contents corresponding to the other PSIs can also be understood as the terminal deleting the policy segments corresponding to other PSIs except at least one first PSI contained in the first information.
  • the method further includes:
  • the first core network element acquires a fourth PSI, where the fourth PSI is another PSI except the at least one first PSI included in the first information;
  • the first policy information also includes the fourth PSI and the policy segment content corresponding to the fourth PSI, and the policy segment content is empty; or, the first policy information also includes the fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI.
  • the first policy information also includes the fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI. It can be understood that the first policy information only includes the first information and the fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI.
  • the first information includes the content shown in Table 5.
  • Table 5 Contents of the first message.
  • the first policy information also includes: PSI-4, PSI-5, PSI-6, PSI-7, PSI-8, and the policy section content corresponding to PSI-4, PSI-5, PSI-6, PSI-7, PSI-8, and the policy section content corresponding to PSI-4, PSI-5, PSI-6, PSI-7, PSI-8 are all empty, see Table 6.
  • Table 6 Contents included in the first policy information in addition to the first information.
  • the first policy information only includes the following in addition to the first information: PSI-4, PSI-5, PSI-6, PSI-7, PSI-8, see Table 7.
  • Table 7 Contents included in the first policy information in addition to the first information.
  • the first core network element generates the first information, including:
  • the first core network element When the first core network element receives a request message that does not include PSI (or PSI list), the first core network element generates first information.
  • the first core network element determines that the UE undergoes inter-base station switching and a PCF change occurs, and receives a request message that does not contain PSI (or PSI list), the first core network element generates first information.
  • PCF-2 will not request the UE information from the UDR because the UE does not carry the PSI list, but will generate new policy information by itself and send it to the UE.
  • PCF-1 assigns 3 PSIs to the UE, namely PSI-1, PSI-2 and PSI-3.
  • PCF-2 assigns 2 PSIs to the UE, namely PSI-1 and PSI-2, and sends them to the UE.
  • the UE will use the content of PSI-1 and PSI-2 sent by the network to replace the saved policy section content corresponding to PSI-1 and PSI-2, and delete the policy section content corresponding to PSI-3, to avoid the UE from establishing a PDU session based on the content of PSI-3, which will be rejected by the network and affect the user experience.
  • the terminal can use the received first policy information to update the locally stored policy information. For example, in a switching scenario between base stations or other scenarios, the terminal can update the locally stored policy information. During the update process, the terminal can delete the saved redundant PSI according to the received first policy information, thereby avoiding the problem of being rejected by the network when the terminal uses the policy segment content corresponding to the redundant PSI to establish a PDU session, thereby improving the user experience.
  • an embodiment of the present application provides an information transmission method, which is applied to a terminal.
  • the method includes: step 401 and step 402.
  • Step 401 A terminal receives first policy information sent by a first core network element, where the first policy information includes first information, and the first information includes at least one first PSI and policy segment content corresponding to the at least one first PSI;
  • Step 402 The terminal updates the stored policy information according to the first policy information.
  • the first policy information further includes third information, the third information includes at least one third PSI and policy segment content corresponding to the at least one third PSI, and the policy segment content corresponding to the at least one third PSI is empty, or the third information includes at least one third PSI, and the third information does not include the policy segment content corresponding to the at least one third PSI;
  • the terminal updates the stored policy information according to the first policy information, including:
  • the terminal In a case where the terminal stores a fifth PSI that is identical to the at least one third PSI, the terminal locally deletes the fifth PSI and the policy segment content corresponding to the fifth PSI.
  • the third information includes at least one third PSI, and the third information does not include corresponding policy segment content. It can be understood that the third information only includes at least one third PSI.
  • the terminal locally deletes the fifth PSI and the policy segment content corresponding to the fifth PSI, which can also be understood as the terminal deleting the policy segment corresponding to the fifth PSI.
  • the method further includes:
  • the terminal receives the ANDSP sent by the first core network element.
  • the first policy information further includes: fourth information, the fourth information is used to indicate at least one of the following: the terminal saves the first information; the terminal deletes at least one other PSI other than the first PSI included in the first information and the policy segment content corresponding to the other PSI;
  • the terminal updates the stored policy information according to the first policy information, including:
  • the terminal deletes the locally stored other PSIs other than the at least one first PSI and the policy segment contents corresponding to the other PSIs.
  • the terminal deletes at least one locally stored PSI other than the first PSI and policy segmentation content corresponding to other PSIs, which can also be understood as the terminal deleting at least one locally stored policy segmentation corresponding to other PSIs other than the first PSI.
  • the first policy information further includes a fourth PSI and a policy segment content corresponding to the fourth PSI, and the policy segment content is empty, or the first policy information further includes a fourth PSI, and the first policy information does not include a policy segment content corresponding to the fourth PSI, wherein the fourth PSI is a PSI other than the at least one first PSI included in the first information;
  • the terminal updates the stored policy information according to the first policy information, including:
  • the terminal In a case where the terminal stores a sixth PSI that is identical to the fourth PSI, the terminal locally deletes the sixth PSI and the policy segment content corresponding to the sixth PSI.
  • the terminal locally deletes the sixth PSI and the policy segment content corresponding to the sixth PSI, which can also be understood as the terminal locally deleting the policy segment corresponding to the sixth PSI.
  • the first policy information also includes a fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI. It can also be understood that the first policy information only includes the first information and the fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI.
  • the terminal can use the received first policy information to update the locally stored policy information. For example, in a switching scenario between base stations or other scenarios, the terminal can update the locally stored policy information. During the update process, the terminal can delete the saved redundant PSI according to the received first policy information, thereby avoiding the problem of being rejected by the network when the terminal uses the policy segment content corresponding to the redundant PSI to establish a PDU session, thereby improving the user experience.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the UE switches from base station 1 to base station 2, and changes from other AMFs to the AMF in Figure 5 during the switching process.
  • the specific steps are as follows:
  • Step 501 After the handover is completed, the UE initiates a registration request, and the registration request does not include the terminal policy container (UE Policy Container), that is, the registration request does not include the PSI list.
  • UE Policy Container terminal policy container
  • Step 502 AMF sends a terminal policy control creation request (for example, AMF Npcf_UEPolicyControl Create) message to PCF to create a terminal policy association (UE Policy Association).
  • a terminal policy control creation request for example, AMF Npcf_UEPolicyControl Create
  • Step 503 When the PCF receives a terminal policy control creation request that does not include a UE Policy Container, the PCF generates first information, which includes at least one first PSI and a policy section content (policy section content) corresponding to the at least one first PSI.
  • the PCF sends a data management query request (for example, Nudr_DM_Query request) message to the UDR, requesting to obtain the PSI corresponding to the UE and the policy section content corresponding to the PSI.
  • a data management query request for example, Nudr_DM_Query request
  • the policy section content in this article can also be referred to as terminal policy section content (UE policy section content).
  • PCF receives a terminal policy control creation request that does not include a UE Policy Container, which can also be understood as PCF receiving a terminal policy control creation request that does not include a PSI list.
  • Step 504 PCF receives a data query response message (e.g., Nudr_DM_Query response) from the UDR, where the data query response message carries second information, where the second information includes at least one second PSI of the terminal stored by the second core network element and a policy segmentation content corresponding to the at least one second PSI.
  • a data query response message e.g., Nudr_DM_Query response
  • Step 505 The PCF obtains the third information based on the first information and the second information, and the PCF sends the policy information to the AMF, where the first policy information includes the first information and the third information, including at least one third PSI and the policy segmentation content corresponding to the at least one third PSI, and the policy segmentation content corresponding to the at least one third PSI is empty, or the third information includes at least one third PSI, and the third information does not include the policy segmentation content corresponding to the at least one third PSI; the at least one third PSI is included in the second information and is not included in the first information.
  • the first policy information includes the first information and the third information, including at least one third PSI and the policy segmentation content corresponding to the at least one third PSI, and the policy segmentation content corresponding to the at least one third PSI is empty, or the third information includes at least one third PSI, and the third information does not include the policy segmentation content corresponding to the at least one third PSI; the at least one third PSI is included in the
  • the policy information is transmitted between the PCF and the UE through the terminal policy container (UE Policy Container), so the policy information can also be called the terminal policy container.
  • UE Policy Container terminal policy container
  • the PCF generates an ANDSP based on the information obtained from the UDR whether the ANDSP is supported, and sends it to the UE. For example, when the UE supports the ANDSP from the UDR, the ANDSP is generated; when the UE does not support the ANDSP from the UDR, the ANDSP is not generated.
  • the first information generated by PCF includes PSI-1, PSI-2, PSI-5; and the second information packets obtained from UDR are PSI-1, PSI-2, PSI-3, PSI-4, then the third information obtained by PCF includes PSI-3 and PSI-4.
  • the first policy information sent by PCF to UE includes PSI-1, PSI-2, PSI-3, PSI-4 and PSI-5.
  • PSI-1, PSI-2 and PSI-5 correspond to normal UE policy section contents, and the UE policy section contents corresponding to PSI-3 and PSI-4 are empty, or the first policy information does not contain the UE policy section contents corresponding to PSI-3 and PSI-4.
  • the generation process of the first information and the acquisition process of the second information are not in order.
  • the first information can be generated after the second information is received.
  • Step 506 AMF responds with a registration accept message to the UE.
  • the registration acceptance message includes the first information and the third information.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the UE In the connected state, the UE switches from base station 1 to base station 2, and during the switching process changes from other AMFs to the AMF in Figure 6.
  • Step 601 to step 602 the same as steps 501-502 shown in FIG. 5 .
  • Step 603 When the PCF receives a terminal policy control creation request that does not include a UE Policy Container, the PCF generates first information, which includes at least one first PSI and a policy segmentation content corresponding to the at least one first PSI.
  • the PCF saves the first information to the UDR through a data management creation request (for example, Nudr_DM_Create request) message.
  • a data management creation request for example, Nudr_DM_Create request
  • Step 604 The UDR responds with a data management create response (e.g., Nudr_DM_Create response) message.
  • a data management create response e.g., Nudr_DM_Create response
  • Step 605 The PCF includes a UE Policy Container in the response message (for example, Npcf_UEPolicyControl Create response) sent to the AMF.
  • the UE Policy Container includes the generated first information and fourth information.
  • the fourth information is used to instruct the UE to save only the first information, that is, to delete the previously saved policy information, or to instruct the UE to delete other PSIs other than at least one first PSI included in the first information saved locally and the policy segmentation content corresponding to the other PSIs.
  • it is used to instruct the UE to delete at least one PSI other than the first PSI contained in the first information stored locally and the policy segmentation content corresponding to the other PSI. It can also be understood as being used to instruct the UE to delete the policy segmentation corresponding to at least one PSI other than the first PSI contained in the first information stored locally.
  • Step 606 AMF sends a registration acceptance message to the UE.
  • the registration acceptance message includes the first information and the fourth information.
  • the UE only saves the first information based on the fourth information; or, uses the content included in the UE Policy Container to update the saved policy information, and deletes other PSIs other than the at least one first PSI included in the first information saved locally and the policy segmentation content corresponding to the other PSIs.
  • deleting at least one PSI other than the first PSI contained in the first information stored locally and the policy segmentation content corresponding to the other PSI can also be understood as deleting the policy segmentation corresponding to at least one PSI other than the first PSI contained in the first information stored locally.
  • the policy information locally stored by the UE includes PSI-1, PSI-2, PSI-3, and PSI-4, and the first information received by the UE includes PSI-1, PSI-2, and PSI-5.
  • the UE deletes the originally saved policy information according to the fourth information, and saves PSI-1, PSI-2, PSI-5 and the UE policy section content corresponding to PSI-1, PSI-2, PSI-5; or,
  • UE updates the contents of PSI-1 and PSI-2, adds the content of PSI-5, deletes PSI-3 and PSI-4 and the UE policy section content corresponding to PSI-3 and PSI-4.
  • Deleting PSI-3 and PSI-4 and the UE policy section content corresponding to PSI-3 and PSI-4 can also be understood as deleting the UE policy section corresponding to PSI-3 and PSI-4.
  • the UE In the connected state, the UE switches from base station 1 to base station 2, and during the switching process changes from other AMFs to the AMF in Figure 6.
  • Steps 701 - 704 are the same as steps 601 - 604 in FIG. 6 .
  • Step 705 The PCF includes the first policy information in the response message sent to the AMF, where the first policy information includes the first information, the fourth PSI and the policy segment content corresponding to the fourth PSI, where the policy segment content corresponding to the fourth PSI is empty, or the first policy information includes the first information and the fourth PSI, where the fourth PSI is a PSI other than the at least one first PSI included in the first information;
  • the first policy information includes the first information and the fourth PSI, which can be understood as the first policy information does not include the policy segment content corresponding to the fourth PSI.
  • Step 706 AMF sends a registration acceptance message to the UE, in which the first policy information includes the first information, the fourth PSI and the policy segment content corresponding to the fourth PSI, the policy segment content corresponding to the fourth PSI is empty, or the first policy information includes the first information and the fourth PSI.
  • the policy information locally stored by the UE includes PSI-1, PSI-2, PSI-3, PSI-4, and the policy segmentation contents corresponding to PSI-1, PSI-2, PSI-3, and PSI-4
  • the first information generated by the PCF includes PSI-1, PSI-2, PSI-5, and the policy segmentation contents corresponding to PSI-1, PSI-2, and PSI-5;
  • the first policy information received by the UE includes PSI-1 to PSI-8, wherein the policy section content corresponding to PSI-1, PSI-2, and PSI-5 is normal content, and the policy section contents corresponding to other PSIs (i.e., PSI-3, PSI-4, PSI-6, PSI-7, and PSI-8) are empty or the first policy information does not contain the policy section content corresponding to other PSIs.
  • UE only saves PSI-1, PSI-2, PSI-5 and their corresponding policy section content, deletes other PSIs and the policy section content corresponding to other PSIs, that is, deletes PSI-3, PSI-4 and the policy section content corresponding to PSI-3 and PSI-4. Deleting other PSIs and the policy section content corresponding to other PSIs can also be understood as deleting the policy section corresponding to other PSIs.
  • an embodiment of the present application provides an information transmission device, which is applied to a first core network device.
  • the first core external network device includes but is not limited to: a PCF.
  • the device 800 includes:
  • a first generating module 801 is configured to generate first information, wherein the first information includes at least one first PSI and policy segment content corresponding to the at least one first PSI;
  • the first sending module 802 is used to send policy information to the terminal, where the first policy information includes the first information, and the first policy information is used to update the policy information stored in the terminal.
  • the device 800 further includes:
  • a first acquisition module is used to acquire second information from a second core network network element, where the second information includes at least one second PSI of the terminal stored by the second core network network element and a policy segment content corresponding to the at least one second PSI;
  • a determination module configured to obtain third information according to the first information and the second information
  • the first policy information also includes the third information, the third information includes at least one third PSI and the policy segmentation content corresponding to the at least one third PSI, the policy segmentation content corresponding to the at least one third PSI is empty, or the third information includes at least one third PSI, and the third information does not include the policy segmentation content corresponding to the at least one third PSI; the at least one third PSI is included in the second information and not included in the first information.
  • the device 800 further includes:
  • a second acquisition module configured to acquire, from the second core network element, information indicating whether the terminal supports ANDSP;
  • a second generating module configured to generate an ANDSP by the first core network element when the terminal supports ANDSP;
  • the second sending module is configured to send the ANDSP to the terminal.
  • the first policy information further includes: fourth information, where the fourth information is used to indicate at least one of the following:
  • the terminal stores the first information
  • the terminal deletes at least one PSI other than the first PSI contained in the first information and policy segment contents corresponding to the other PSIs.
  • the device 800 further includes:
  • a third acquisition module configured to acquire a fourth PSI, where the fourth PSI is another PSI other than the at least one first PSI included in the first information;
  • the first policy information also includes the fourth PSI and the policy segment content corresponding to the fourth PSI, and the policy segment content is empty; or the first policy information also includes the fourth PSI, and the first policy information does not include the policy segment content corresponding to the fourth PSI.
  • the first sending module 802 is further used to: generate first information when the first core network element receives a request message that does not include a PSI.
  • the device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • an embodiment of the present application provides an information transmission device, which is applied to a terminal.
  • the device 900 includes:
  • the first receiving module 901 is used to receive first policy information sent by a first core network element, where the first policy information includes first information, where the first information includes at least one first PSI and policy segment content corresponding to the at least one first PSI;
  • the updating module 902 is used to update the stored policy information according to the first policy information.
  • the first policy information further includes third information, the third information includes at least one third PSI and policy segment content corresponding to the at least one third PSI, and the policy segment content corresponding to the at least one third PSI is empty, or the third information includes at least one third PSI, and the third information does not include the policy segment content corresponding to the at least one third PSI;
  • the updating module 902 is further configured to: when the terminal stores a fifth PSI that is identical to the at least one third PSI, delete the fifth PSI and the policy segment content corresponding to the fifth PSI.
  • the device further includes:
  • the second receiving module is configured to receive an access network service discovery and selection policy ANDSP sent by the first core network element when the terminal supports the ANDSP.
  • the first policy information further includes: fourth information, the fourth information is used to indicate at least one of the following: the terminal saves the first information; the terminal deletes other PSIs other than at least one first PSI included in the first information and the policy segment content corresponding to the other PSIs;
  • the updating module 902 is further used to delete other PSIs other than the at least one first PSI stored locally and the policy segment contents corresponding to the other PSIs.
  • the first policy information further includes a fourth PSI and a policy segment content corresponding to the fourth PSI, and the policy segment content is empty, or the first policy information further includes a fourth PSI, and the first policy information does not include a policy segment content corresponding to the fourth PSI, and the fourth PSI is a PSI other than the at least one first PSI included in the first information;
  • the updating module 902 is further configured to: when the terminal stores a sixth PSI that is the same as the fourth PSI, delete the sixth PSI and the policy segment content corresponding to the sixth PSI.
  • the device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • Fig. 10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and at least some of the components in the processor 1010.
  • the terminal 1000 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so that the power management system can manage charging and discharging.
  • a power source such as a battery
  • the terminal structure shown in FIG10 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072.
  • the touch panel 10071 is also called a touch screen.
  • the touch panel 10071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 1001 can transmit the data to the processor 1010 for processing; in addition, the RF unit 1001 can send uplink data to the network side device.
  • the RF unit 1001 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 1009 can be used to store software programs or instructions and various data.
  • the memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 1009 may include a volatile memory or a non-volatile memory, or the memory 1009 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1010.
  • the terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • FIG. 11 is a structural diagram of a network side device applied in an embodiment of the present invention.
  • the communication The device 1100 includes: a processor 1101, a transceiver 1102, a memory 1103 and a bus interface, wherein the processor 1101 may be responsible for managing the bus architecture and general processing.
  • the memory 1103 may store data used by the processor 1101 when performing operations.
  • the communication device 1100 further includes: a program stored in the memory 1103 and executable on the processor 1101 , and when the program is executed by the processor 1101 , the steps in the method shown in FIG. 3 are implemented.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1101 and memory represented by memory 1103.
  • the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1102 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • an embodiment of the present application also provides a communication device 1200, including a processor 1201 and a memory 1202, and the memory 1202 stores programs or instructions that can be run on the processor 1201.
  • the communication device 1200 is a terminal
  • the program or instruction is executed by the processor 1201 to implement the various steps of the method embodiment of Figure 4 above.
  • the communication device 1200 is a network side device
  • the program or instruction is executed by the processor 1201 to implement the various steps of the method embodiment of Figure 3 above and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the method of Figure 3 or Figure 4 and the various processes of the above-mentioned embodiments are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes shown in Figure 3 or Figure 4 and the various method embodiments mentioned above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes shown in Figure 3 or Figure 4 and the various method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides a communication system, which includes a terminal and a network side device.
  • the terminal is used to execute the various processes as shown in Figure 4 and the various method embodiments described above
  • the network side device is used to execute the various processes as shown in Figure 3 and the various method embodiments described above, and can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本申请公开了一种信息传输方法、装置、通信设备及可读存储介质，该方法包括：第一核心网网元生成第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容；所述第一核心网网元向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。

Description

信息传输方法、装置、通信设备及可读存储介质
相关申请的交叉引用
本申请主张在2022年11月15日提交的中国专利申请No.202211437801.5的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种信息传输方法、装置、通信设备及可读存储介质。
背景技术
策略控制功能(Policy Control Function，PCF)是第五代移动通信技术(5th Generation，5G)核心网设备，PCF可以对终端(比如，用户设备(User Equipment，UE))中保存的策略(policy)信息进行管理，例如通过终端策略管理(UE policy management)流程对UE中保存的策略信息进行增加(add)、删除(delete)、修改(modify)等操作。PCF在向UE发送策略信息时，是以策略分段(policy section)的形式发送的，每个policy section对应一个标识(identifier)，即策略分段标识(Policy Section Identifier，PSI)。
如何对UE本地保存的策略信息进行更新是亟待解决的问题。
发明内容
本申请实施例提供一种信息传输方法、装置、通信设备及可读存储介质，解决如何对UE本地保存的策略信息进行更新的问题。
第一方面，提供一种信息传输方法，包括：
第一核心网网元生成第一信息，所述第一信息包括至少一个第一策略分段标识PSI和所述至少一个第一PSI对应的策略分段内容；
所述第一核心网网元向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
第二方面，提供一种信息传输方法，包括：
终端接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容，所述第一信息是所述第一核心网网元生成的；
所述终端根据所述第一策略信息，更新保存的策略信息。
第三方面，提供一种信息传输装置，包括：
第一生成模块，用于生成第一信息，所述第一信息包括至少一个第一策略分段标识PSI和所述至少一个第一PSI对应的策略分段内容；
第一发送模块，用于向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
第四方面，提供一种信息传输装置，包括：
第一接收模块，用于接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容，所述第一信息是所述第一核心网网元生成的；
更新模块，用于根据所述第一策略信息，更新保存的策略信息。
第五方面，提供了一种通信设备，包括：处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第二方面所述的方法的步骤。
第六方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面或第二方面所述的方法的步骤。
第七方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面所述的法的步骤。
第八方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在非瞬态的存储介质中，所述程序/程序产品被至少一个处理器执行以实现如第一方面或第二方面所述的方法的步骤。
第九方面，提供一种通信系统，所述通信系统包括终端与网络侧设备，所述终端用于执行如第一方面或第二方面所述的方法的步骤，所述网络侧设备用于执行如第一方面或第二方面所述的方法的步骤。
在本申请实施例中，终端可以利用收到的第一策略信息对本地保存的策略信息进行更新，比如在基站间切换场景或其他场景中，可以实现终端对本地保存的策略信息进行更新。
附图说明
图1是终端的注册流程的示意图；
图2为本申请实施例的无线通信系统的架构示意图；
图3是本申请实施例提供的信息传输方法的流程图之一；
图4是本申请实施例提供的信息传输方法的流程图之二；
图5是本申请实施例提供的信息传输方法的流程图之三；
图6是本申请实施例提供的信息传输方法的流程图之四；
图7是本申请实施例提供的信息传输方法的流程图之五；
图8是本申请实施例提供的信息传输装置的示意图之一；
图9是本申请实施例提供的信息传输装置的示意图之二；
图10是本申请实施例提供的终端的示意图；
图11是本申请实施例提供的网络侧设备的示意图；
图12是本申请实施例提供的通信设备的示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。本申请的说明书和权利要求书中的术语“指示”既可以是一个明确的指示，也可以是一个隐含的指示。其中，明确的指示可以理解为，发送方在发送的指示中明确告知了接收方需要执行的操作或请求结果；隐含的指示可以理解为，接收方根据发送方发送的指示进行判断，根据判断结果确定需要执行的操作或请求结果。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
为了便于理解本申请的实施方式，下面先介绍以下技术点。
一、关于策略控制功能(Policy Control Function，PCF)。
PCF是第五代移动通信技术(5th Generation，5G)核心网内设备，PCF可以对终端(比如，用户设备(User Equipment，UE))中保存的策略(policy)信息进行管理，例如通过终端策略管理(UE policy management)流程对UE中保存的策略信息进行增加(add)、删除(delete)、修改(modify)等操作。PCF在向UE发送策略信息时，是以策略分段(policy  section)的形式发送的，每个policy section对应一个标识(identifier)，即策略分段标识(Policy Section Identifier，PSI)。
policy section可以包含如下几类信息：接入网络服务发现与选择策略(Access Network Discovery&Selection Policy，ANDSP)，用户路由选择策略(UE Route Selection Policy，URSP)，车联网策略(Vehicle-to-everything Policy，V2XP)，近距离通信策略(Proximity-based Services Policy，ProSeP)。
二、关于URSP规则(rule)。
URSP rule是第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)定义的一种给UE发送的策略，UE根据URPS rule，可以将应用程序(Application，APP)匹配到特定的PDU session。例如，UE上某个应用启动时，UE会使用根据每个URSP rule的优先级，从高到低进行匹配。当匹配到某个URSP rule时，会使用该URSP rule内包含的协议数据单元(Protocol Data Unit，PDU)会话(session)的参数为UE新建一个PDU session，会使用与该参数匹配的已有的PDU session为该APP传输数据。
为了方便传输，PCF将一个或多个需要发送给UE的策略信息，例如URSP rule放入policy section中，并以policy section的形式将策略信息传递给UE。每个policy section有一个标识：PSI(Policy Section Identifier)。PCF通过一个或多个policy section将所有需要发送给UE的策略信息，例如URSP rule，发送给UE。在发送时，每个policy section包含1个PSI以及该PSI对应的策略分段内容(policy section content)。
UE在向网络发送注册消息时，可以携带其保存的PSI列表(list)，用于与网络进行策略信息同步。UE注册流程如图1所示：
步骤101：UE发起注册请求，在注册请求中包含终端策略容器(UE Policy Container)，在UE Policy Container中包含如下内容：
(1)UE保存的PSI list；
(2)用于指示UE是否支持ANDSP的信息；
(3)UE的操作系统标识(operating system identifier，OSId)。
步骤102：接入和移动管理功能(Access and Mobility Management Function，AMF)通过终端策略控制创建(Npcf_UEPolicyControl Create)消息，将UE Policy Container发送给PCF。
步骤103：PCF通过数据管理创建(Nudr_DM_Create)消息，将PSI信息保存到统一数据仓库(Unified Data Repository，UDR)，同时，将OSId和是否支持ANDSP的信息保存到UDR。
步骤4：UDR回复响应消息。
步骤5：PCF回复响应消息。
步骤6：AMF回复注册接受消息。
图2示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端 21和网络侧设备22。
其中，终端21可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。除了上述终端设备，本申请涉及的终端也可以是终端内的芯片，例如调制解调器(Modem)芯片，系统级芯片(System on Chip，SoC)。需要说明的是，在本申请实施例并不限定终端21的具体类型。
网络侧设备22可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network，RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网络(Wireless Local Area Networks，WLAN)接入点或无线保真(Wireless Fidelity，WiFi)节点等，基站可被称为节点B、演进节点B(evolved Node B，eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。
核心网设备可以包含但不限于如下至少一项：核心网节点、核心网功能、移动管理实体(Mobility Management Entity，MME)、接入和移动管理功能(Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、策略控制功能(Policy Control Function，PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function，EASDF)、统一数据管理(Unified Data Management，UDM)，统一数据仓储(Unified Data Repository，UDR)、归属用户服务器(Home Subscriber Server，HSS)、集中式网络配置(Centralized network configuration，CNC)、网络存储功能(Network Repository Function，NRF)，网络开放功能(Network Exposure Function，NEF)、本地NEF(Local NEF，或L-NEF)、绑定支持功能(Binding Support Function，BSF)、应用功能(Application Function，AF)等。需要说明的是，在本申请实施例中仅以NR系统中的核心网设备为例进行介绍，并不限定核心网设备的具体类型。
参见图3，本申请实施例提供一种信息传输方法，应用于第一核心网设备，该第一核心外网设备包括但不限于：PCF，具体步骤包括：步骤301和步骤302。
步骤301：第一核心网网元生成第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容(policy section content)；
上述第一信息也可以称为第一PSI列表，该第一PSI列表中包含至少一个第一PSI和该至少一个第一PSI对应的策略分段内容，本文中的策略分段内容也可以称为终端策略分段内容(UE policy section content)。
例如，第一信息可以包括：PSI-1、该PSI-1对应的策略分段内容、PSI-2、该PSI-2对应的策略分段内容、PSI-3、该PSI-3对应的策略分段内容，如表1所示。
表1：第一信息中的内容。
需要说明的是，PSI可以由2部分组成：公共陆地移动网(Public Land Mobile Network，PLMN)标识(identifier，ID)，策略分段编码(Policy Section Code，PSC)。其中PLMN ID由移动网络编码(Mobile Network Code，MNC)和移动国家编码(Mobile Country Code，MCC)组成。
可选的，PSI也可以称为终端策略分段标识(UE Policy Section Identifier，UPSI)。
示例性的，在以下场景中，第一核心网网元可以生成第一信息。
场景1，UE更换用户识别卡(Subscriber Identity Module，SIM)卡、或新买的终端设备，例如手机。在这些场景下，UE内未保存PSI list以及每个PSI对应的policy section content，则UE在register过程中不会携带PSI list。此时，PCF会根据UE未携带PSI list，认为UE中未保存策略信息，PCF进一步认为UDR中保存的该UE对应的策略信息是无效的信息。则PCF不会从UDR中获取信息，而是自己生成新的策略信息，并将新生成的策略信息发送给UE。策略信息包括至少一个PSI，以及每个PSI对应的policy section content。
场景2：UE在连接状态下进行移动时，会发生基站间切换(handover)，在切换完成后，UE会执行一次移动性register过程，在移动性register过程中也不会携带PSI list。
可以理解的是，第一核心网网元生成第一信息的场景并不限于上述两种场景。
步骤302：第一核心网网元向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
上述第一策略信息也可以称为第一终端策略容器，上述策略信息也可以称为终端策略容器(UE Policy Container)，策略信息可以包括至少一个PSI，以及每个PSI对应的policy  section content。
在本申请的一种实施方式中，所述方法还包括：
所述第一核心网网元从第二核心网网元获取第二信息，所述第二信息包括所述第二核心网网元保存的所述终端的至少一个第二PSI和所述至少一个第二PSI对应的策略分段内容；
上述第二信息也可以称为第二PSI列表，该第二PSI列表中包含至少一个第二PSI和该第二PSI对应的策略分段内容。例如，第二信息可以包含PSI-1、该PSI-1对应的策略分段内容、PSI-2、该PSI-2对应的策略分段内容，如表2所示。
表2：第二信息中的内容。
所述第一核心网网元根据所述第一信息和所述第二信息，得到第三信息；
其中，所述第一策略信息中还包括所述第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述策略分段内容为空(empty)，或者所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；所述至少一个第三PSI包含在所述第二信息中，且未包含在所述第一信息中。
可选的，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容，可以理解为，所述第三信息仅包括至少一个第三PSI。
上述第三信息也可以称为第三PSI列表，该第三PSI列表中包含至少一个第三PSI和该第三PSI对应的策略分段内容，该策略分段内容设置为空，或者该第三PSI列表中仅包含至少一个第三PSI。例如，第三信息包含的内容如表3所示。
表3：第三信息中的内容。
或者，第三信息包含的内容如表4所示。
表4：第三信息中的内容。
上述第二核心网网元包括但不限于UDR。
在本申请的一种实施方式中，所述方法还包括：
所述第一核心网网元从所述第二核心网网元获取用于指示所述终端是否支持ANDSP的信息；
在所述终端支持ANDSP的情况下，所述第一核心网网元生成ANDSP；
所述第一核心网网元向所述终端发送所述ANDSP。
在本申请的一种实施方式中，所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：
(1)所述终端保存所述第一信息；
也就是，第四信息用于指示终端仅保存接收到的第一信息。
(2)所述终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容。
也就是，第四信息用于指示终端删除本地保存的，不包含在第一信息中的其他PSI以及该PSI对应的策略分段内容。
终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容也可以理解为终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI对应的策略分段。
在本申请的一种实施方式中，所述方法还包括：
所述第一核心网网元获取第四PSI，所述第四PSI是除所述第一信息中包含的至少一个第一PSI之外的其他PSI；
其中，所述第一策略信息还包括所述第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空；或者，所述第一策略信息还包括所述第四PSI，第一策略信息中不包括所述第四PSI对应的策略分段内容。
可选的，所述第一策略信息还包括所述第四PSI，第一策略信息中不包括所述第四PSI对应的策略分段内容，可以理解为，所述第一策略信息中仅包括所述第一信息和第四PSI，所述第一策略信息中未包含第四PSI对应的策略分段内容。
例如，第一信息包含的内容如表5所示。
表5：第一信息中的内容。
第一策略信息中除了第一信息之外还包括：PSI-4、PSI-5、PSI-6、PSI-7、PSI-8，以及PSI-4、PSI-5、PSI-6、PSI-7、PSI-8各自对应的policy section content，且PSI-4、PSI-5、PSI-6、PSI-7、PSI-8各自对应的policy section content均为空，参见表6。
表6：第一策略信息除了第一信息之外还包括的内容。

或者，第一策略信息中除了第一信息之外仅包括：PSI-4、PSI-5、PSI-6、PSI-7、PSI-8，参见表7。
表7：第一策略信息除了第一信息之外还包括的内容。
在本申请的一种实施方式中，所述第一核心网网元生成第一信息，包括：
在所述第一核心网网元接收到不包含PSI(或者PSI列表)的请求消息的情况下，所述第一核心网网元生成第一信息。
可选的，在所述第一核心网网元确定所述UE发生基站间切换，且发生PCF的变化时，接收到不包含PSI(或者PSI列表)的请求消息的情况下，所述第一核心网网元生成第一信息。
例如，若在UE切换时，UE从AMF-1的服务范围移动到AMF-2的服务范围时，并且可能会同时从PCF-1变更到PCF-2。此时PCF-2也会根据UE未携带PSI list，而不向UDR请求UE的信息，而是自己生成新的策略信息，并发送给UE。此时，会存在UE保存冗余PSI信息的问题。例如，PCF-1给UE分配3个PSI，分别为PSI-1，PSI-2和PSI-3。当UE发生切换，由PCF-2为UE提供服务时，PCF-2为UE分配2个PSI，分别为PSI-1和PSI-2，并发送给UE。此时，UE会使用网络发送的PSI-1和PSI-2的内容替换已保存的PSI-1和PSI-2对应的policy section content，并删除PSI-3对应的policy section content，避免UE根据PSI-3的内容建立PDU会话，会被网络拒绝，影响用户体验。
在本申请实施例中，终端可以利用收到的第一策略信息对本地保存的策略信息进行更新，比如在基站间切换场景或其他场景中，可以实现终端对本地保存的策略信息进行更新，在更新过程中终端可以根据接收到的第一策略信息删除保存的冗余PSI，避免终端使用冗余的PSI对应的策略分段内容建立PDU会话时，被网络拒绝的问题，提高用户体验。
参见图4，本申请实施例提供一种信息传输方法，应用于终端，该方法包括：步骤401 和步骤402。
步骤401：终端接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容；
步骤402：终端根据所述第一策略信息，更新保存的策略信息。
在本申请的一种实施方式中，所述第一策略信息还包括第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；
所述终端根据所述第一策略信息，更新保存的策略信息，包括：
在所述终端保存有与所述至少一个第三PSI相同的第五PSI的情况下，所述终端本地删除所述第五PSI以及所述第五PSI对应的策略分段内容。
可选的，所述第三信息包括至少一个第三PSI，所述第三信息中不包括对应的策略分段内容，可以理解为，所述第三信息仅包括至少一个第三PSI。
可选的，所述终端本地删除所述第五PSI以及所述第五PSI对应的策略分段内容，也可以理解为所述终端删除所述第五PSI对应的策略分段。
在本申请的一种实施方式中，所述方法还包括：
在所述终端支持接入网络服务发现与选择策略ANDSP的情况下，所述终端接收所述第一核心网网元发送的ANDSP。
在本申请的一种实施方式中，所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：所述终端保存所述第一信息；所述终端删除第一信息中包含的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容；
所述终端根据所述第一策略信息，更新保存的策略信息，包括：
所述终端删除本地保存的至少一个第一PSI外的其他PSI以及其他PSI对应的策略分段内容。
可选的，所述终端删除本地保存的至少一个第一PSI外的其他PSI以及其他PSI对应的策略分段内容，也可以理解为，所述终端删除本地保存的至少一个第一PSI外的其他PSI对应的策略分段。
在本申请的一种实施方式中，所述第一策略信息还包括第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空，或者，所述第一策略信息还包括第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容，其中所述第四PSI是除所述第一信息中包含的至少一个第一PSI外的其他PSI；
所述终端根据所述第一策略信息，更新保存的策略信息，包括：
在所述终端保存有与所述第四PSI相同的第六PSI的情况下，所述终端本地删除所述第六PSI以及第六PSI对应的策略分段内容。
可选的，所述终端本地删除所述第六PSI以及第六PSI对应的策略分段内容，也可以理解为，所述终端本地删除所述第六PSI对应的策略分段。
可选的，所述第一策略信息还包括第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容，也可以理解为，所述第一策略信息中仅包括第一信息和第四PSI，所述第一策略信息中未包含第四PSI对应的策略分段内容。
在本申请实施例中，终端可以利用收到的第一策略信息对本地保存的策略信息进行更新，比如在基站间切换场景或其他场景中，可以实现终端对本地保存的策略信息进行更新，在更新过程中终端可以根据接收到的第一策略信息删除保存的冗余PSI，避免终端使用冗余的PSI对应的策略分段内容建立PDU会话时，被网络拒绝的问题，提高用户体验。
下面结合实施例一、实施例二和实施例三介绍本申请的实施方式。
实施例一：
UE在连接态下，从基站1切换到基站2，在切换过程中从其他AMF变更为图5中的AMF。参见图5，具体步骤如下：
步骤501：切换完成后，UE发起注册(register)请求，在注册请求中未包含终端策略容器(UE Policy Container)，即注册请求未包含PSI列表(list)。
步骤502：AMF向PCF发送终端策略控制创建请求(比如，AMF Npcf_UEPolicyControl Create)消息，用于创建终端策略关联(UE Policy Association)。
步骤503：在PCF接收到不包含UE Policy Container的终端策略控制创建请求的情况下，PCF生成第一信息，该第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容(policy section content)，PCF向UDR发送数据管理查询请求(比如，Nudr_DM_Query request)消息，请求获得UE对应PSI，以及该PSI对应的策略分段内容。
本文中的策略分段内容也可以称为终端策略分段内容(UE policy section content)。
可选的，PCF接收到不包含UE Policy Container的终端策略控制创建请求，也可以理解为PCF接收到不包含PSI list的终端策略控制创建请求。
步骤504：PCF从UDR接收数据查询响应消息(比如，Nudr_DM_Query response)，数据查询响应消息携带第二信息，所述第二信息包括所述第二核心网网元保存的所述终端的至少一个第二PSI和所述至少一个第二PSI对应的策略分段内容。
步骤505：PCF根据所述第一信息和所述第二信息，得到第三信息，PCF向AMF发送策略信息，所述第一策略信息包括所述第一信息和第三信息，包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空(empty)，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；所述至少一个第三PSI包含在所述第二信息中，且未包含在所述第一信息中。
本文中PCF与UE间是通过终端策略容器(UE Policy Container)进行策略信息传输的，因此策略信息也可以称为终端策略容器。
可选的，PCF根据从UDR获得的是否支持ANDSP的信息，生成ANDSP，并发送给UE。例如，当从UDR获得UE支持ANDSP时，则生成ANDSP；当从UDR获得UE不支持ANDSP时，则不生成ANDSP。
例如：当PCF生成的第一信息包括PSI-1，PSI-2，PSI-5；从UDR获得的第二信息包PSI-1，PSI-2，PSI-3，PSI-4时，则PCF获得的第三信息包括PSI-3和PSI-4。
PCF向UE发送的第一策略信息包括PSI-1，PSI-2，PSI-3，PSI-4，PSI-5。其中PSI-1，PSI-2，PSI-5对应正常的UE policy section contents，PSI-3和PSI-4对应的UE policy section contents为empty，或第一策略信息中不包含PSI-3和PSI-4对应的UE policy section contents。
需要说明的是，第一信息的生成过程和第二信息的获取过程不分先后。比如，可以在收到第二信息后，再生成第一信息。
步骤506：AMF向UE回复注册接受(register accept)消息。
可选的，在该注册接受消息中包含第一信息和第三信息。
实施例二：
UE在连接态下，从基站1切换到基站2，在切换过程中从其他AMF变更为图6中的AMF。
参见图6，具体步骤如下：
步骤601～步骤602：与图5所示的步骤501-502相同。
步骤603：在PCF接收到不包含UE Policy Container的终端策略控制创建请求的情况下，PCF生成第一信息，该第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容，PCF通过数据管理创建请求(比如，Nudr_DM_Create request)消息，将第一信息保存到UDR。
步骤604：UDR回复数据管理创建响应(比如，Nudr_DM_Create response)消息。
步骤605：PCF在向AMF发送的响应消息(比如，Npcf_UEPolicyControl Create response)中包含UE Policy Container，在UE Policy Container中包含生成的第一信息以及第四信息，该第四信息用于指示UE仅保存第一信息，即删除之前保存的策略信息，或者，用于指示UE删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容。
可选的，用于指示UE删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容，也可以理解为，用于指示UE删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI对应的策略分段。
步骤606：AMF向UE发送注册接受消息，可选的，在该注册接受消息中包含第一信息和第四信息。
可选的，UE根据第四信息，仅保存第一信息；或者，使用UE Policy Container包含的内容更新保存的策略信息，并删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容。
可选的，删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容，也可以理解为，删除本地保存的所述第一信息中包含的至少一个第一PSI外的其他PSI对应的策略分段。
例如，UE本地保存的策略信息包括PSI-1，PSI-2，PSI-3，PSI-4，UE收到的第一信息包括PSI-1，PSI-2，PSI-5。
UE根据第四信息，删除原保存的策略信息，并保存PSI-1，PSI-2，PSI-5以及PSI-1，PSI-2，PSI-5对应的UE policy section content；或者，
UE根据第四信息，更新PSI-1，PSI-2的内容，新增PSI-5的内容，删除PSI-3和PSI-4以及PSI-3、PSI-4对应的UE policy section content。
删除PSI-3和PSI-4及其PSI-3、PSI-4对应的UE policy section content，也可以理解为，删除PSI-3和PSI-4对应的UE policy section。
实施例三：
UE在连接态下，从基站1切换到基站2，在切换过程中从其他AMF变更为图6中的AMF。
参见图7，具体步骤如下：
步骤701-704：与图6中的步骤601-604相同。
步骤705：PCF在向AMF发送的响应消息中包含第一策略信息，该第一策略信息包括第一信息、第四PSI和第四PSI对应的策略分段内容，该第四PSI对应的策略分段内容为空，或者，第一策略信息包括第一信息和第四PSI，其中第四PSI是除第一信息中内包含的至少一个第一PSI外的其他PSI；
可选的，第一策略信息包括第一信息和第四PSI，可以理解为，第一策略信息未包括第四PSI对应的策略分段内容。
步骤706：AMF向UE发送注册接受消息，在该注册接受消息中包含该第一策略信息包括第一信息、第四PSI和第四PSI对应的策略分段内容，该第四PSI对应的策略分段内容为空，或者，第一策略信息包括第一信息和第四PSI。
例如：UE本地保存的策略信息包括PSI-1，PSI-2，PSI-3，PSI-4，以及PSI-1，PSI-2，PSI-3，PSI-4对应的策略分段内容，PCF生成的第一信息包括PSI-1，PSI-2，PSI-5，以及PSI-1，PSI-2，PSI-5对应的策略分段内容；
UE收到第一策略信息包括PSI-1至PSI-8，其中PSI-1，PSI-2，PSI-5对应的policy section content是正常的内容，其他PSI(即PSI-3，PSI-4，PSI-6，PSI-7，PSI-8)对应的policy section contents为empty或第一策略信息中不包含其他PSI对应的policy section content。
UE仅保存PSI-1，PSI-2，PSI-5及其对应的policy section content，删除其他PSI及其他PSI对应的policy section content，即删除PSI-3、PSI-4以及PSI-3、PSI-4对应的policy section content。删除其他PSI及其他PSI对应的policy section content，也可以理解为，删除其他PSI对应的policy section。
参见图8，本申请实施例提供一种信息传输装置，应用于第一核心网设备，该第一核心外网设备包括但不限于：PCF，装置800包括：
第一生成模块801，用于生成第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容；
第一发送模块802，用于向终端发送策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
在本申请的一种实施方式中，所述装置800还包括：
第一获取模块，用于从第二核心网网元获取第二信息，所述第二信息包括所述第二核心网网元保存的所述终端的至少一个第二PSI和所述至少一个第二PSI对应的策略分段内容；
确定模块，用于根据所述第一信息和所述第二信息，得到第三信息；
其中，所述第一策略信息还包括所述第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；所述至少一个第三PSI包含在所述第二信息中，且未包含在所述第一信息中。
在本申请的一种实施方式中，所述装置800还包括：
第二获取模块，用于从所述第二核心网网元获取用于指示所述终端是否支持ANDSP的信息；
第二生成模块，用于在所述终端支持ANDSP的情况下，所述第一核心网网元生成ANDSP；
第二发送模块，用于向所述终端发送所述ANDSP。
在本申请的一种实施方式中，所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：
(1)所述终端保存所述第一信息；
(2)所述终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容。
在本申请的一种实施方式中，所述装置800还包括：
第三获取模块，用于获取第四PSI，所述第四PSI是除所述第一信息中包含的至少一个第一PSI之外的其他PSI；
其中，所述第一策略信息还包括所述第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空；或者，所述第一策略信息还包括所述第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容。
在本申请的一种实施方式中，所述第一发送模块802进一步用于：在所述第一核心网网元接收到不包含PSI的请求消息的情况下，生成第一信息。
本申请实施例提供的装置能够实现图3的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
参见图9，本申请实施例提供一种信息传输装置，应用于终端，该装置900包括：
第一接收模块901，用于接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容；
更新模块902，用于根据所述第一策略信息，更新保存的策略信息。
在本申请的一种实施方式中，所述第一策略信息还包括第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；
更新模块902进一步用于：在所述终端保存有与所述至少一个第三PSI相同的第五PSI的情况下，删除所述第五PSI以及所述第五PSI对应的策略分段内容。
在本申请的一种实施方式中，所述装置还包括：
第二接收模块，用于在所述终端支持接入网络服务发现与选择策略ANDSP的情况下，接收所述第一核心网网元发送的ANDSP。
在本申请的一种实施方式中，所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：所述终端保存所述第一信息；所述终端删除第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容；
更新模块902进一步用于：删除本地保存的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容。
在本申请的一种实施方式中，所述第一策略信息还包括第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空，或者，所述第一策略信息还包括第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容，所述第四PSI是除所述第一信息中包含的至少一个第一PSI外的其他PSI；
更新模块902进一步用于：在所述终端保存有与所述第四PSI相同的第六PSI的情况下，删除所述第六PSI以及所述第六PSI对应的策略分段内容。
本申请实施例提供的装置能够实现图4的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
图10为实现本申请实施例的一种终端的硬件结构示意图。该终端1000包括但不限于：射频单元1001、网络模块1002、音频输出单元1003、输入单元1004、传感器1005、显示单元1006、用户输入单元1007、接口单元1008、存储器1009以及处理器1010等中的至少部分部件。
本领域技术人员可以理解，终端1000还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1010逻辑相连，从而通过电源管理系统实现管理充 电、放电、以及功耗管理等功能。图10中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1004可以包括图形处理器(Graphics Processing Unit，GPU)10041和麦克风10042，图形处理器10041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1006可包括显示面板10061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板10061。用户输入单元1007包括触控面板10071以及其他输入设备10072中的至少一种。触控面板10071，也称为触摸屏。触控面板10071可包括触摸检测装置和触摸控制器两个部分。其他输入设备10072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1001接收来自网络侧设备的下行数据后，可以传输给处理器1010进行处理；另外，射频单元1001可以向网络侧设备发送上行数据。通常，射频单元1001包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1009可用于存储软件程序或指令以及各种数据。存储器1009可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1009可以包括易失性存储器或非易失性存储器，或者，存储器1009可以包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器1009包括但不限于这些和任意其它适合类型的存储器。
处理器1010可包括一个或多个处理单元；可选的，处理器1010集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1010中。
本申请实施例提供的终端能够实现图4的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
请参阅图11，图11是本发明实施例应用的网络侧设备的结构图，如图11所示，通信 设备1100包括：处理器1101、收发机1102、存储器1103和总线接口，其中，处理器1101可以负责管理总线架构和通常的处理。存储器1103可以存储处理器1101在执行操作时所使用的数据。
在本发明的一个实施例中，通信设备1100还包括：存储在存储器1103并可在处理器1101上运行的程序，程序被处理器1101执行时实现以上图3所示方法中的步骤。
在图11中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。
如图12所示，本申请实施例还提供一种通信设备1200，包括处理器1201和存储器1202，存储器1202上存储有可在所述处理器1201上运行的程序或指令，例如，该通信设备1200为终端时，该程序或指令被处理器1201执行时实现上述图4方法实施例的各个步骤，该通信设备1200为网络侧设备时，该程序或指令被处理器1201执行时实现上述图3方法实施例的各个步骤且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现图3或图4方法及上述各个实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现图3或图4所示及上述各个方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现图3或图4所示及上述各个方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种通信系统，所述通信系统包括终端与网络侧设备，所述终端用于执行如图4及上述各个方法实施例的各个过程，所述网络侧设备用于执行如图3及上述各个方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他 性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (27)

  1. 一种信息传输方法，包括：
    第一核心网网元生成第一信息，所述第一信息包括至少一个第一策略分段标识PSI和所述至少一个第一PSI对应的策略分段内容；
    所述第一核心网网元向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
  2. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述第一核心网网元从第二核心网网元获取第二信息，所述第二信息包括所述终端的至少一个第二PSI和所述至少一个第二PSI对应的策略分段内容；
    所述第一核心网网元根据所述第一信息和所述第二信息，得到第三信息；
    其中，所述第一策略信息还包括所述第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；所述至少一个第三PSI包含在所述第二信息中，且未包含在所述第一信息中。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述第一核心网网元从第二核心网网元获取用于指示所述终端是否支持接入网络服务发现与选择策略ANDSP的信息；
    在所述终端支持ANDSP的情况下，所述第一核心网网元生成ANDSP；
    所述第一核心网网元向所述终端发送所述ANDSP。
  4. 根据权利要求1所述的方法，其中，
    所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：
    所述终端保存所述第一信息；
    所述终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容。
  5. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述第一核心网网元获取第四PSI，所述第四PSI是除所述第一信息中包含的至少一个第一PSI之外的其他PSI；
    所述第一策略信息还包括所述第四PSI和所述第四PSI对应的策略分段内容，所述第四PSI对应的策略分段内容为空；或者，所述第一策略信息还包括所述第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容。
  6. 根据权利要求1至5任一项所述的方法，其中，所述第一核心网网元生成第一信息，包括：
    在所述第一核心网网元接收到不包含PSI的请求消息的情况下，所述第一核心网网元 生成第一信息。
  7. 根据权利要求6所述的方法，其中，所述请求消息包括终端策略控制创建请求消息。
  8. 根据权利要求1至5任一项所述的方法，其中，所述第一核心网网元包括策略控制功能PCF。
  9. 根据权利要求2或3所述的方法，其中，所述第二核心网网元包括统一数据仓库UDR。
  10. 一种信息传输方法，包括：
    终端接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一策略分段标识PSI和所述至少一个第一PSI对应的策略分段内容，所述第一信息是所述第一核心网网元生成的；
    所述终端根据所述第一策略信息，更新保存的策略信息。
  11. 根据权利要求10所述的方法，其中，
    所述第一策略信息还包括第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容；
    所述终端根据所述第一策略信息，更新保存的策略信息，包括：
    在所述终端保存有与所述至少一个第三PSI相同的第五PSI的情况下，所述终端本地删除所述第五PSI以及所述第五PSI对应的策略分段内容。
  12. 根据权利要求11所述的方法，其中，所述方法还包括：
    在所述终端支持接入网络服务发现与选择策略ANDSP的情况下，所述终端接收所述第一核心网网元发送的ANDSP。
  13. 根据权利要求10所述的方法，其中，
    所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：所述终端保存所述第一信息；所述终端删除第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容；
    所述终端根据所述第一策略信息，更新保存的策略信息，包括：
    所述终端删除本地保存的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容。
  14. 根据权利要求10所述的方法，其中，
    所述第一策略信息还包括第四PSI和所述第四PSI对应的策略分段内容，所述第四PSI对应的策略分段内容为空，或者，所述第一策略信息还包括第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容，所述第四PSI是除所述第一信息中包含的至少一个第一PSI之外的其他PSI；
    所述终端根据所述第一策略信息，更新保存的策略信息，包括：
    在所述终端保存有与所述第四PSI相同的第六PSI的情况下，所述终端本地删除所述第六PSI以及所述第六PSI对应的策略分段内容。
  15. 根据权利要求7至14任一项所述的方法，其中，所述第一核心网网元包括策略控制功能PCF。
  16. 一种信息传输装置，包括：
    第一生成模块，用于生成第一信息，所述第一信息包括至少一个第一策略分段标识PSI和所述至少一个第一PSI对应的策略分段内容；
    第一发送模块，用于向终端发送第一策略信息，所述第一策略信息包括所述第一信息，所述第一策略信息用于对所述终端保存的策略信息进行更新。
  17. 根据权利要求16所述的装置，其中，所述装置还包括：
    第一获取模块，用于从第二核心网网元获取第二信息，所述第二信息包括所述第二核心网网元保存的所述终端的至少一个第二PSI和所述至少一个第二PSI对应的策略分段内容；
    确定模块，用于根据所述第一信息和所述第二信息，得到第三信息；
    其中，所述第一策略信息还包括第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者，所述第三信息包括至少一个第三PSI，所述第三信息不包括所述至少一个第三PSI对应的策略分段内容。
  18. 根据权利要求16所述的装置，其中，所述装置还包括：
    第二获取模块，用于从第二核心网网元获取用于指示所述终端是否支持ANDSP的信息；
    第二生成模块，用于在所述终端支持ANDSP的情况下，生成ANDSP；
    第二发送模块，用于向所述终端发送所述ANDSP。
  19. 根据权利要求16所述的装置，其中，
    所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：
    所述终端保存所述第一信息；
    所述终端删除所述第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容。
  20. 根据权利要求16所述的装置，其中，所述装置还包括：
    第三获取模块，用于获取第四PSI，所述第四PSI是除所述第一信息中包含的至少一个第一PSI之外的其他PSI；
    所述第一策略信息还包括所述第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空；或者，所述第一策略信息还包括所述第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容。
  21. 一种信息传输装置，包括：
    第一接收模块，用于接收第一核心网网元发送的第一策略信息，所述第一策略信息包括第一信息，所述第一信息包括至少一个第一PSI和所述至少一个第一PSI对应的策略分段内容，所述第一信息是所述第一核心网网元生成的；
    更新模块，用于根据所述第一策略信息，更新保存的策略信息。
  22. 根据权利要求21所述的装置，其中，
    所述第一策略信息还包括第三信息，所述第三信息包括至少一个第三PSI和所述至少一个第三PSI对应的策略分段内容，所述至少一个第三PSI对应的策略分段内容为空，或者所述第三信息包括至少一个第三PSI，所述第三信息不包括对应的策略分段内容；
    所述更新模块进一步用于：在终端保存有与所述至少一个第三PSI相同的第五PSI的情况下，本地删除所述第五PSI以及所述第五PSI对应的策略分段内容。
  23. 根据权利要求22所述的装置，其中，所述装置还包括：
    第二接收模块，用于在所述终端支持接入网络服务发现与选择策略ANDSP的情况下，接收所述第一核心网网元发送的ANDSP。
  24. 根据权利要求21所述的装置，其中，
    所述第一策略信息还包括：第四信息，所述第四信息用于指示以下至少一项：终端保存所述第一信息；终端删除第一信息中包含的至少一个第一PSI之外的其他PSI以及所述其他PSI对应的策略分段内容；
    所述更新模块进一步用于：删除本地保存的至少一个第一PSI外的其他PSI以及所述其他PSI对应的策略分段内容。
  25. 根据权利要求21所述的装置，其中，
    所述第一策略信息还包括第四PSI和所述第四PSI对应的策略分段内容，所述策略分段内容为空，或者，所述第一策略信息还包括第四PSI，所述第一策略信息中不包括所述第四PSI对应的策略分段内容，所述第四PSI是除所述第一信息中包含的至少一个第一PSI外的其他PSI；
    所述更新模块进一步用于：在终端保存有与所述第四PSI相同的第六PSI的情况下，删除所述第六PSI以及所述第六PSI对应的策略分段内容。
  26. 一种通信设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至15中任一项所述的方法的步骤。
  27. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至15中任一项所述的方法的步骤。
PCT/CN2023/126996 2022-11-15 2023-10-27 信息传输方法、装置、通信设备及可读存储介质 WO2024104077A1 (zh)

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