Information updating method and apparatus, and communication device and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are an information updating method and apparatus, and a communication device and a network-side device. The information updating method in the embodiments of the present application comprises: a first communication device acquiring first information; and the first communication device updating second information on the basis of the first information, wherein the second information is used by a terminal to determine a routing mode for outbound traffic. The technical solution of the present embodiment can realize the generation of a URSP rule by using energy-related information.

Description

Information updating method, device, communication equipment, and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410403776.1 filed in China on April 3, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to an information updating method, apparatus, communication equipment, and network-side equipment. Background Art

[0004] When the Policy Control Function (PCF) generates the UE Route Selection Policy (URSP) rules, it does not know the relevant information, which may lead to the problem that the generated URSP rules are inappropriate. When the PCF does not know the energy-related information, the URSP rules generated cannot match the application (APP) traffic to the protocol data unit (PDU) session with low energy consumption or high energy efficiency, because a PDU session will clearly specify the data network name (DNN), single network slice selection assistance information (S-NSSAI) slice, PDU session type, access type, etc. used by the terminal. These different parameters of the PDU session will affect energy consumption or energy efficiency. When the PCF does not know the IP address range or domain name range that is not allowed to be routed to the local data network, the generated URSP rules may instruct the terminal to match the IP address or domain name that is not allowed to be routed to the local data network to the PDU session accessing the local data network (DN).

[0005] In related technologies, because the PCF does not know energy-related information when generating URSP rules, it may cause the slice or DNN used by the terminal to consume high energy or have low energy efficiency, which is not conducive to network energy saving. Alternatively, because the home location's diversion strategy is unknown, the generated URSP rules may appear to route traffic that is not allowed to be routed to the local data network (DN) to the local DN or use sessions accessing local slices to route traffic locally. Summary of the Invention

[0006] The embodiments of the present application provide an information update method, apparatus, communication equipment, and network-side equipment, which can realize the generation of URSP rules using energy-related information, or avoid generating URSP rules that route traffic that is not allowed to be routed to the local DN to the local DN.

[0007] In a first aspect, an information updating method is provided, which is performed by a first communication device, the method comprising:

[0008] The first communication device obtains first information;

[0009] The first communication device updates second information according to the first information, wherein the second information is used by the terminal to determine a routing method for outbound traffic.

[0010] In a second aspect, an information updating method is provided, which is executed by a network-side device, and the method includes:

[0011] The network side device sends first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine a routing method for outbound traffic.

[0012] According to a third aspect, an information updating method is provided, which is performed by a fourth communication device. The method includes:

[0013] The fourth communication device receives a second request from the first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier;

[0014] The fourth communication device replaces at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

[0015] In a fourth aspect, an information updating apparatus is provided, applied to a first communication device, comprising:

[0016] A receiving module, configured to obtain first information;

[0017] An updating module is used to update second information according to the first information, wherein the second information is used by the terminal to determine a routing method for outbound traffic.

[0018] In a fifth aspect, an information updating device is provided, which is applied to a network-side device, including:

[0019] The sending module is used to send first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine the routing method of outbound traffic.

[0020] In a sixth aspect, an information updating apparatus is provided, applied to a fourth communication device, including:

[0021] a request receiving module, configured to receive a second request from a first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier;

[0022] A replacement module is used to replace at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

[0023] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect, the second aspect, or the third aspect are implemented.

[0024] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to obtain first information; the processor is used to update second information based on the first information, wherein the second information is used by the terminal to determine the routing method of outbound traffic.

[0025] In the ninth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send first information to a first communication device, the first information is used to update second information, and the second information is used by the terminal to determine the routing method of outbound traffic.

[0026] In the tenth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a second request from a first communication device, the second request is sent by the first communication device based on the first information, and the second request includes at least one of the following: a second data network name DNN, a second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier; the processor is used to replace at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

[0027] In the eleventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0028] In the twelfth aspect, a wireless communication system is provided, including: a terminal and a network side device, and the network side device can be used to execute the steps of the method described in the first aspect, the second aspect, or the third aspect.

[0029] In the thirteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect.

[0030] In the fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0031] In an embodiment of the present application, a first communication device obtains first information and updates second information based on the first information. The second information is used by the terminal to determine the routing method of outbound traffic. For example, the first information may include energy-related information, and the second information may be a URSP rule or a terminal policy. In this way, a URSP rule can be generated based on the energy-related information, so that the terminal selects a routing method with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving; or, for example, the first information is a VPLMN-specific unloading policy or specific unloading information. The first communication device can generate the second information based on the first information. The second information may be a URSP rule or a terminal policy. In this way, it is possible to avoid generating a URSP rule that routes traffic that is not allowed to be routed to the local DN to the local DN, which helps to achieve the control of the home operator over the traffic of the roaming terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0033] FIG2 is a schematic diagram showing the composition of a traffic descriptor of a URSP rule;

[0034] FIG3 is a schematic diagram of allowing access traffic to be routed locally and not allowing access traffic to be routed locally;

[0035] Figures 4-6 are flow charts of an information updating method provided in an embodiment of the present application;

[0036] Figures 7 to 11 are flowcharts of the information updating method provided by specific examples of this application;

[0037] 12-14 are schematic diagrams of the structure of an information updating device provided in an embodiment of the present application;

[0038] FIG15 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0039] Figures 16 and 17 are structural diagrams of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0041] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0042] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result based on the judgment result.

[0043] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0044] FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), a teller machine (ATM), or a self-service machine, etc. 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, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0045] 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 (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0046] In an embodiment of the present application, at least one of the first communication device, the second communication device, the third communication device, and the fourth communication device is one or more core network devices; at least one of the first communication device, the second communication device, the third communication device, and the fourth communication device may also be one or more terminals or network side devices.

[0047] In one embodiment, in an embodiment of the present application, the first communication device takes a policy control function (PCF) as an example (the PCF may be PCF for session, or PCF for UE); the second communication device is a network element used to collect, store, and open energy-related information, such as operation and maintenance management (OAM) or network data analysis function (NWDAF), or a network element specifically used to manage energy information, such as energy efficiency control function (EECF); the third communication device may be NWDAF; the fourth communication device may be AMF or SMF.

[0048] URSP rules are a policy defined in related technologies and sent to the UE. The UE can match the APP traffic to a specific PDU session based on the URSP rules.

[0049] For example, if some apps on a UE want to send traffic to a server, the apps can send app traffic characteristics to the UE. Traffic characteristics can include destination Internet Protocol (IP) addresses, fully qualified domain names (FQDNs), and so on. The UE then matches the URSP rules within the UE one by one based on the app traffic characteristics. The traffic descriptors in a URSP rule include app descriptors, IP descriptors, domain name descriptors, non-IP descriptors, data network names, and connection capabilities, as shown in Figure 2.

[0050] For example, if the traffic description / features of a URSP rule include an IP descriptor, the app can send an IP description to describe the app's traffic, such as a destination IP triplet, to indicate that the app's traffic is to be sent to destination IP = 10.1.1.1, port number = 80. If the UE URSP rule happens to contain this traffic descriptor, it means that the app's traffic can match a certain URSP rule.

[0051] After URSP rules match the app's traffic, the next step is to choose which PDU session to use to send the app's traffic.

[0052] Generally speaking, a traffic descriptor contains multiple route selection descriptors (RSDs), which are composed of one or more route selection components (RSCs). Each RSD represents a set of attributes or parameters of a PDU session. For example, when APP traffic matches the traffic descriptor with destination IP = 10.1.1.1 and port number = 80, the following RSDs are associated with this traffic descriptor:

[0053] (1)RSD precedence=1:

[0054] S-NSSAI-a;

[0055] Non-3GPP Access (wifi, WLAN).

[0056] (2)RSD precedence=2:

[0057] S-NSSAI-a;

[0058] 3GPP Access (4G, 5G);

[0059] DNN = Internet;

[0060] SSC mode = 3.

[0061] Among them, the characteristics of the PDU session corresponding to RSD1 are: S-NSSAI = S-NSSAI-a, using non-3GPP access.

[0062] The RSD values ​​specifically include: session and service continuity mode selection, network slice selection, DNN selection, PDU session type selection, seamless offload indication, access type preference, time window, location criteria, etc.

[0063] In related technologies, the energy efficiency (EE) key performance indicator (KPI) for a network element is expressed as the data volume divided by the network element's energy consumption (EC). Network element energy consumption here refers to the energy consumed to transmit a certain amount of data packets. For example, a user plane transmitting 10G of data consumes a total EC of 100 joules, or 20 kilowatt-hours.

[0064] In the network, considering the different routing distances and routing congestion levels, as well as the conditions of transmitting data to different servers, the energy consumed to transmit the same amount of data is also different.

[0065] In 5G networks, these data can be collected. For example, the average energy consumption of a user plane can be collected, or the energy consumption caused by all the data transmitted by a user plane to a server can be collected.

[0066] The “energy related information” involved in the embodiments of the present application may include at least one of energy consumption (EC) information (abbreviated as energy consumption) and energy efficiency (EE) information (abbreviated as energy efficiency).

[0067] Energy consumption is the total amount of energy used to achieve a specific purpose, expressed in joules (J) or watt-hours (Wh). Energy efficiency is the relationship between useful output and energy consumption, typically expressed as data volume (DV) divided by the energy consumed to transmit that data volume, or EE = DV / EC.

[0068] For example, a UPF consumes 100 joules or 20 kilowatt-hours to transmit 10G of data. In a network, different routing distances, different levels of routing congestion, and data transmission to different application servers all contribute to different energy consumption when transmitting the same amount of data.

[0069] In the embodiment of the present application, energy consumption may include the energy consumption of the server and the energy consumption of the UPF. For example, the energy consumption of the server or UPF per unit time, or the energy consumed by the server or UPF in processing a certain task, or the energy consumed in forwarding a unit of data to the server, or the energy consumed by the UPF in processing a unit of data.

[0070] In the embodiment of the present application, "energy-related information" can be collected. For example, the average energy consumption of a certain application server can be collected, the average energy consumption of a certain UPF can be collected, and the energy consumption of all data transmitted by a certain UPF to a certain application server can be collected.

[0071] In the 5G core network (5GC), there is a specific offloading policy for the visited public land mobile network (VPLMN). This policy is sent from the home policy control function for session (Home PCF for session, H-PCF) to the home session management function (Home Session Management Function, H-SMF). The H-SMF generates VPLMN specific offloading information according to the policy. The specific offloading information includes specific diversion information, which specifies: which IP addresses or FQDNs are allowed to be routed to the local DN, and which IP addresses or FQDNs are not allowed to be routed to the local DN.

[0072] For example, as shown in Figure 3, access traffic to IP address 1.2.3.4 is allowed to be routed to the server locally in the roaming area. However, access traffic to IP address abcd is not allowed to be routed directly in the roaming area and must be routed to the home operator for processing.

[0073] The related technologies have the following technical problems:

[0074] Question 1: Different parameters in RSD have different corresponding energies, and PCF cannot generate appropriate URSP rules.

[0075] For example, when Terminal 1 is at Location 1 and selects a PDU session for app traffic with Traffic Descriptor FQDN = "ABC.com", then if selecting DNN1 consumes less energy than selecting DNN2, the PDU session accessing DNN1 is preferred because selecting this session consumes less energy or is more energy efficient.

[0076] For example, when Terminal 1 is at location 1 and selects a PDU session for app traffic with Traffic descriptor FQDN = "ABC.com", then if selecting slice S-NSSAI-a consumes less energy than selecting S-NSSAI-b, the PDU session accessing slice 1 is preferred because selecting this session consumes less energy or is more energy efficient.

[0077] The current PCF does not consider the energy consumption information in these RSD parameters when generating URSP rules. As a result, when routing APP traffic, it is impossible to select the best PDU session, that is, it is impossible to select a session with low energy consumption.

[0078] Problem 2: URSP rules in roaming locations need to take into account offload policies, but PCF cannot generate URSP rules that meet the offload policies.

[0079] Because the home carrier restricts local routing for certain IP addresses or FQDNs, problems may arise if the URSP rules do not reflect this restriction.

[0080] For example, access traffic with an IP address of abcd is not allowed to be directly routed locally in the roaming area. At this time, the UE has a PDU session that happens to access the local DNN-a. If the URSP rule indicates that the traffic with the traffic descriptor "abcd" as the IP address should be matched to the PDU session of DNN-a, this will result in the traffic that is not allowed to be locally routed being matched to a local session in the roaming area. In this way, the home operator cannot control the traffic of the roaming terminal. For example, if some traffic is diverted through the local DN of the roaming area, the home operator will be unable to supervise and / or bill this part of the traffic. Therefore, it is necessary to control the traffic of some roaming terminals.

[0081] Therefore, when PCF generates URSP rules, it needs to design the URSP rules reasonably to avoid matching some traffic that is not allowed to be routed locally to local sessions through URSP rules.

[0082] The information updating method, apparatus, communication equipment, and network-side equipment provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0083] Please refer to FIG4 , which is a flowchart of an information updating method provided in an embodiment of the present application. As shown in FIG4 , the method includes the following steps:

[0084] Step 101: A first communication device obtains first information;

[0085] Step 102: The first communication device updates second information according to the first information, wherein the second information is used by the terminal to determine a routing method for outbound traffic.

[0086] The first communication device may also send the second information to the terminal.

[0087] In one implementation, the first communication device may be a PCF.

[0088] In one implementation, the first communication device may receive the first information from the second communication device or the third communication device.

[0089] In this embodiment, the update can be understood as at least one of the following:

[0090] Updating, modifying, or adjusting existing information. For example, if the second information is a UE policy or a URSP rule, the first communications device adjusts or modifies parameters in the URSP rule based on the first information.

[0091] Update may also be understood as generation or creation. For example, the second information is a UE policy or a URSP rule, and the first communication device directly generates a URSP rule according to the first information.

[0092] In this embodiment, the first communication device obtains first information and updates second information based on the first information. The second information is used by the terminal to determine the routing method of outgoing traffic. For example, the first information may include energy-related information, and the second information may be a URSP rule or a terminal policy. In this way, the first communication device can generate a URSP rule based on the energy-related information, so that the terminal selects a routing method with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving; or, for example, the first information is a VPLMN-specific offload policy or specific offload information. The first communication device can generate the second information based on the first information. The second information may be a URSP rule or a terminal policy. This can avoid generating a URSP rule that routes traffic that is not allowed to be routed to the local DN to the local DN, which helps to achieve the control of the home operator over the traffic of the roaming terminal.

[0093] Here, information update can also be understood as information generation or information determination.

[0094] In the embodiment of the present application, energy-related information can be understood as energy information.

[0095] In some embodiments, the first communication device updates the second information according to the first information, including at least one of the following:

[0096] The first communication device selects the path selection parameter RSC with the lowest energy consumption or the highest energy efficiency as the RSC in the second information. This allows the terminal to select the RSC with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving. The RSC path selection parameter includes at least one of the following: SSC mode, DNN, S-NSSAI, PDU session type, access type, etc. The first communication device requests to obtain energy information corresponding to multiple RSCs from the second communication device, and determines whether to use the RSC parameter as the RSC parameter in the URSP rule of the second information based on the energy-related information.

[0097] In one embodiment, the first communication device compares energy-related information of the same type of RSC, for example, comparing energy-related information of DNN-a and DNN-b, or comparing energy-related information of slice A and slice B.

[0098] In one embodiment, the first communication device selects the first object with the lowest energy consumption or the highest energy efficiency as the RSC in the second information, wherein the first object is at least one of the SSC mode, DNN, S-NSSAI, PDU session type, and access type. In one embodiment, the first communication device sends a request to the second communication device to request to obtain the first information, and the request may carry at least one traffic descriptor. The traffic descriptor includes at least one of the following: application descriptors, IP descriptors, domain descriptors, non-IP descriptors, DNN, and connection capabilities. When the request sent by the first communication device carries at least one of the traffic descriptor or RSC, the request is used to request to obtain energy-related information using the traffic descriptor + RSC. Then, the first communication device can adjust the RSC under the traffic descriptor in the second information based on the energy-related information. For example, the first communication device requests to obtain energy-related information of the traffic descriptor being IP descriptor = {1.2.3.4} and DNN-a, and requests to obtain the energy of the traffic descriptor being IP descriptor = {1.2.3.4} and DNN-b. If the energy consumption corresponding to the energy of IP descriptor = {1.2.3.4} and DNN-b is low, the first communication device modifies the URSP rule in which the traffic descriptor is IP descriptor = {1.2.3.4}, for example, changes the RSC under the traffic descriptor being IP descriptor = {1.2.3.4} to DNN-b to reduce energy consumption.

[0099] In one embodiment, a first communication device sends a request to a second communication device to request first information. In addition to carrying a traffic descriptor, the request may also carry at least one of the following: an IP address, an FQDN, or a DNAI, for requesting access to a specific IP address, a specific FQDN, or energy-related information under a specific DNAI. The request is used to request energy-related information of a PDU session corresponding to the RSD under the traffic descriptor when the terminal accesses the IP address or FQDN, or accesses a data network from the user plane corresponding to the DNAI.

[0100] The first communication device selects the RSC combination with the lowest energy consumption or the highest energy efficiency as the RSC combination in the second information. The RSC combination includes at least one RSC, so that the terminal can select the RSC combination with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving, wherein energy consumption refers to the energy consumed by the network element to transmit a certain amount of data packets, and energy efficiency is the amount of data divided by the energy consumption of the network element; the first communication device sends a request to the second communication device, and the request can be a combination of multiple RSCs, such as a combination of DNN-a and S-NSSAI-a, then the request is used to obtain energy-related information corresponding to this RSC combination. Similarly, the request can also carry a traffic descriptor to obtain energy-related information when using the URSP rule corresponding to the traffic descriptor and the RSC combination. The first communication device can request to obtain energy-related information of the same traffic descriptor and / or multiple RSC combinations, for example, to obtain the energy of IP descriptor = {1.2.3.4} and DNN-b + S-NSSAI-b, and to obtain the energy of IP descriptor = {1.2.3.4} and DNN-a + S-NSSAI-a. If the energy consumption corresponding to DNN-b + S-NSSAI-b is low, then the first communication device can replace the RSC corresponding to the traffic descriptor IP descriptor = {1.2.3.4} with the combination of DNN-b + S-NSSAI-b; or the RSC combination corresponding to the traffic descriptor IP descriptor = {1.2.3.4} can be replaced with the combination of DNN-b + S-NSSAI-b, with the priority adjusted to the highest, or higher than the priority of the RSC combination DNN-a + S-NSSAI-a.

[0101] The lowest energy consumption or the highest energy efficiency means that when accessing the DNN (or accessing the server under the DN corresponding to the DNN), or using the slice corresponding to the S-NSSAI (or using the slice to access a server), or using the PDU session type (the session corresponding to the session type), or using the SSC mode (the session corresponding to the SSC mode), or using the access type (the session corresponding to the access type), the energy consumed is the lowest or the energy efficiency is the highest (i.e., more energy-efficient) when transmitting or sending data to the terminal.

[0102] In one embodiment, the first communication device selects a first object combination with the lowest energy consumption or the highest energy efficiency as the RSC in the second information, wherein the first object combination is at least two of the SSC mode, DNN, S-NSSAI, PDU session type, and access type.

[0103] The first communication device selects the routing descriptor RSD with the lowest energy consumption or the highest energy efficiency as the RSD in the second information. This allows the terminal to select the RSD with lower energy consumption or higher energy efficiency, thereby helping to achieve network energy saving. The RSD includes at least one RSC. Therefore, when requesting energy information of the RSD, it can be considered that the first communication device obtains energy information corresponding to the combination of all RSCs under the RSD.

[0104] In one embodiment, the first communication device may send a request to the second communication device to request first information, and a traffic descriptor may be provided in the request. The energy-related information provided by the second communication device is the energy-related information corresponding to the traffic descriptor after using RSD.

[0105] The first communication device selects the user equipment routing option policy URSP rule with the lowest energy consumption or the highest energy efficiency as the second information, which enables the terminal to select the RSC or RSD with lower energy consumption or higher energy efficiency, thereby helping to achieve network energy saving;

[0106] The first communication device does not select at least one of the first data network name DNN and the first single network slice selection auxiliary information S-NSSAI as parameters in the RSD in the IP descriptor or domain name descriptor in the second information. It can be understood that the first communication device excludes the first DNN and the first S-NSSAI from the parameters in the RSD in the IP descriptor or domain name descriptor in the second information; the IP descriptor includes at least one address that is not allowed to be routed to the local data network DN; the domain name descriptor includes at least one domain name that is not allowed to be routed to the local DN; the first DNN is the data network name of the local DN (i.e., the local part of DN), the first protocol data unit PDU session belongs to the first S-NSSAI, and the first PDU session accesses the local DN, which can avoid routing traffic that is not allowed to be routed to the local DN to the local DN or using a session to access the local slice to route traffic to the local.

[0107] In one embodiment, the first communication device is a PCF for UE, the second communication device is a PCF for session, and the first communication device receives the VPLMN-specific offloading policy or specific offloading information from the second communication device, including any one of the following:

[0108] The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN;

[0109] Do not allow routing to the IP address range or FQDN range of the local DN;

[0110] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0111] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0112] In one embodiment, the first IP address or the first FQDN is an address or FQDN that is not allowed to be routed to the local data network of the roaming location. Therefore, when the home location generates a URSP rule, the URSP rule with the traffic descriptor being the first IP address or the traffic descriptor being the first FQDN should avoid the following:

[0113] Do not use the first DNN as RSC;

[0114] Do not use the first S-NSSAI as RSC;

[0115] The first DNN is the data network name of the local DN (i.e., the local part of DN) of the roaming location, and the first S-NSSAI is a slice that can access or visit the local DN of the roaming location. When the RSC does not have the first DNN or the first S-NSSAI, this can prevent the terminal from matching application traffic (accessing the first IP address or the first FQDN) to a local PDU session in the roaming location in the roaming location. The PDU session satisfies at least one of the following conditions: using the first S-NSSAI to access the first DNN.

[0116] In some embodiments, the first information includes at least one of the following:

[0117] Energy-related information corresponding to at least one RSC, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC;

[0118] Energy-related information corresponding to at least one RSC combination, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC combination;

[0119] at least one RSC, so that the first communication device can update the URSP rules according to the RSC in the first information;

[0120] At least one RSC combination, where the RSC combination refers to a combination of multiple parameters in the RSC, such as a combination of DNN+S-NSSAI+SSC, so that the first communication device can update the URSP rule according to the RSC combination in the first information;

[0121] energy-related information corresponding to at least one URSP rule, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the URSP rule;

[0122] Energy-related information corresponding to at least one traffic descriptor, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the traffic descriptor; it can also be limited to only providing energy-related information using RSC under the traffic descriptor;

[0123] at least one URSP rule, so that the first communication device can update the URSP rule according to the URSP rule in the first information;

[0124] The visited public land mobile network VPLMN specific offloading policy or specific offloading information can enable the first communication device to update the URSP rule according to the VPLMN specific offloading policy or specific offloading information.

[0125] In one embodiment, the first information includes at least one of the following:

[0126] energy-related information corresponding to at least one first parameter;

[0127] energy-related information corresponding to at least one first parameter combination;

[0128] at least one first parameter;

[0129] at least one first parameter combination;

[0130] Energy-related information corresponding to at least one URSP rule;

[0131] energy-related information corresponding to at least one traffic descriptor;

[0132] At least one URSP rule;

[0133] Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

[0134] In one embodiment, the first parameter may be an RSC or an RSC combination, and the first parameter combination may be an RSC combination;

[0135] In one implementation, the first parameter may be at least one of session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, and access type Access type.

[0136] In one embodiment, the first parameter combination may be at least two of SSC mode, DNN, S-NSSAI, PDU session type, and Access type.

[0137] In some embodiments, the RSC or the first parameter includes at least one of the following:

[0138] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0139] In some embodiments, the RSC combination or the first parameter combination is a combination of at least two of the following RSCs:

[0140] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0141] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0142] In some embodiments, the first information further includes at least one of the following:

[0143] The location corresponding to the energy-related information, i.e., the energy-related information is the energy-related information at this location;

[0144] The time window corresponding to the energy related information, that is, the energy related information is the energy related information within this time window.

[0145] The location here refers to the terminal location, that is, the energy information corresponding to the PDU session using the URSP rule or RSC at the terminal location; the time window refers to the energy information corresponding to the URSP rule or RSC used by the terminal within the time range.

[0146] In some embodiments, the VPLMN specific offloading policy or specific offloading information includes any one of the following:

[0147] The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN;

[0148] Do not allow routing to the IP address range or FQDN range of the local DN;

[0149] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0150] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0151] The first communication device determines or generates URSP rules based on the above information, which can avoid routing traffic that is not allowed to be routed to the local DN (accessing IP addresses or FQDNs that are not allowed to be routed to the local DN) to the local DN or using sessions to access local slices to route traffic locally.

[0152] In some embodiments, the method further comprises:

[0153] The first communication device sends a first request to the second communication device or the third communication device, where the first request is used to request obtaining first information;

[0154] The first request includes at least one of the following:

[0155] at least one of the first parameters;

[0156] at least one RSC;

[0157] at least one RSC combination;

[0158] at least one traffic descriptor;

[0159] At least one URSP rule;

[0160] Terminal identifier;

[0161] Terminal location information;

[0162] Time window.

[0163] The second communication device may be an energy information management network element, and the third communication device may be a network data analytics function (NWDAF). When the first communication device does not know how to determine the URSP rule, it may send a first request to the second communication device or the third communication device, and the second communication device or the third communication device directly sends the first information such as the URSP rule to the first communication device. If the RSD under the traffic descriptor in the URSP rule is low in energy consumption or high in energy efficiency, the first communication device may directly update the URSP rule based on the received first information such as the URSP rule.

[0164] In some embodiments, the method further comprises:

[0165] The first communication device sends a second request to the fourth communication device based on the first information, where the second request is used to change at least one of the DNN and S-NSSAI of the terminal or session, and the second request includes at least one of the following: a second DNN, a second S-NSSAI, a terminal identifier, and a PDU session identifier.

[0166] Among them, the second DNN has lower energy consumption or higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI has lower energy consumption or higher energy efficiency than the S-NSSAI of the current terminal or session.

[0167] In this embodiment, the first communication device can update the DNN and / or S-NSSAI in the URSP rule, and update the DNN and / or S-NSSAI in the URSP rule to a DNN and / or S-NSSAI with lower energy consumption or higher energy efficiency, which helps the terminal select a routing method with lower energy consumption or higher energy efficiency, thereby achieving network energy saving.

[0168] In one implementation, if the fourth communication device is an AMF, the AMF uses the second DNN or the second S-NSSAI to replace the DNN or S-NSSAI currently used by the terminal corresponding to the terminal identifier;

[0169] In one implementation, if the fourth communication device is an SMF, the SMF uses the second DNN or the second S-NSSAI to replace the DNN or S-NSSAI of the PDU session currently used by the terminal corresponding to the terminal identifier;

[0170] In one embodiment, the first communication device may be an AMF or an SMF, and the first communication device sends a request to the second communication device to obtain energy-related information corresponding to a second DNN or a second S-NSSAI; when the AMF or SMF determines that the energy consumption and / or energy efficiency of the DNN or S-NSSAI of the current service terminal is higher than the energy consumption or energy efficiency of the second DNN or second S-NSSAI, the AMF or SMF may directly perform a DNN or S-NSSAI replacement operation. The AMF or SMF, based on the first information, executes a replacement of at least one of the DNN and S-NSSAI of the terminal or session.

[0171] In one embodiment, the AMF or SMF may also set a threshold value or a threshold value. When the energy consumption and / or energy efficiency of the DNN and S-NSSAI of the service terminal are higher than the energy consumption of the second DNN and the second S-NSSAI, or the energy efficiency is lower than the threshold value, at least one of the DNN and S-NSSAI of the terminal or session is replaced.

[0172] Please refer to FIG5 , which is a flowchart of an information updating method provided in an embodiment of the present application. As shown in FIG5 , the method includes the following steps:

[0173] Step 201: The network side device sends first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine a routing method for outbound traffic.

[0174] In this embodiment, the network side device sends first information to the first communication device so that the first communication device updates second information based on the first information. The second information is used by the terminal to determine the routing method of outbound traffic. For example, the first information may include energy-related information, and the second information may be a URSP rule or a terminal policy. In this way, a URSP rule can be generated based on energy-related information, so that the terminal selects a routing method with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving.

[0175] In the embodiment of the present application, energy-related information can be understood as energy information.

[0176] In some embodiments, the first information includes at least one of the following:

[0177] Energy-related information corresponding to at least one first parameter, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC;

[0178] Energy-related information corresponding to at least one first parameter combination, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC combination;

[0179] at least one first parameter, so that the first communication device can update the URSP rule according to the RSC in the first information;

[0180] At least one first parameter combination, where an RSC combination refers to a combination of multiple parameters in an RSC, such as a combination of DNN+S-NSSAI+SSC, so that the first communication device can update the URSP rule according to the RSC combination in the first information;

[0181] energy-related information corresponding to at least one URSP rule, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the URSP rule;

[0182] Energy-related information corresponding to at least one traffic descriptor, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the traffic descriptor; it can also be limited to only provide energy-related information using RSC under the traffic descriptor; at least one URSP rule, so that the first communication device can update the URSP rule according to the URSP rule in the first information;

[0183] The visited public land mobile network VPLMN specific offloading policy or specific offloading information can enable the first communication device to update the URSP rule according to the VPLMN specific offloading policy or specific offloading information.

[0184] In some embodiments, the RSC or the first parameter includes at least one of the following:

[0185] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0186] In some embodiments, the RSC combination or the first parameter combination is a combination of at least two of the following RSCs:

[0187] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0188] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0189] In some embodiments, the first information further includes at least one of the following:

[0190] The location corresponding to the energy-related information, i.e., the energy-related information is the energy-related information at this location;

[0191] The time window corresponding to the energy related information, that is, the energy related information is the energy related information within this time window.

[0192] The location here refers to the terminal location, that is, the energy information corresponding to the PDU session using the URSP rule or RSC at the terminal location; the time window refers to the energy information corresponding to the URSP rule or RSC used by the terminal within the time range.

[0193] In some embodiments, the VPLMN specific offloading policy or specific offloading information includes any one of the following:

[0194] The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN;

[0195] Do not allow routing to the IP address range or FQDN range of the local DN;

[0196] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0197] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0198] The first communication device determines or generates URSP rules based on the above information, which can avoid routing traffic that is not allowed to be routed to the local DN (accessing IP addresses or FQDNs that are not allowed to be routed to the local DN) to the local DN or using sessions to access local slices to route traffic locally.

[0199] In some embodiments, the network-side device includes a second communication device, and the method further includes:

[0200] The second communication device receives a first request from the first communication device, where the first request is used to request obtaining first information;

[0201] The first request includes at least one of the following:

[0202] at least one of the first parameters;

[0203] at least one RSC;

[0204] at least one RSC combination;

[0205] at least one traffic descriptor;

[0206] At least one URSP rule;

[0207] Terminal identifier;

[0208] Terminal location information;

[0209] Time window.

[0210] Among them, the second communication device can be an energy information management network element. When the first communication device does not know how to determine the URSP rules, it can send a first request to the second communication device, and the second communication device directly sends the first information such as the URSP rules to the first communication device. The RSD under the traffic descriptor in the URSP rules has low energy consumption or high energy efficiency. The first communication device can directly update the URSP rules based on the received first information such as the URSP rules.

[0211] In some embodiments, the network-side device includes a third communication device and a second communication device, and the method further includes:

[0212] The third communication device receives a first request from the first communication device, where the first request is used to request obtaining first information, and the first request includes at least one of the following: at least one of the first parameters; at least one RSC; at least one RSC combination; at least one traffic descriptor; at least one URSP rule; a terminal identifier; terminal location information; and a time window.

[0213] In one embodiment, the first request is used to obtain an analysis result, that is, when using at least one RSC; at least one RSC combination; at least one traffic descriptor; at least one URSP rule, the corresponding energy-related information or energy-related analysis result.

[0214] In one implementation, the first request may be:

[0215] Nnwdaf_AnalyticsSubscription_Subscribe, NWDAF analysis subscription request

[0216] Nnwdaf_AnalyticsInfo_Request, NWDAF analysis information request;

[0217] The third communication device sends a third request to the second communication device; the third request is used to obtain energy-related information from the energy management network element.

[0218] The third communication device receives third information from the second communication device, where the third information includes at least one of the following: energy-related information corresponding to at least one RSC; energy-related information corresponding to at least one RSC combination; energy-related information corresponding to at least one URSP rule; and energy-related information corresponding to at least one traffic descriptor.

[0219] In one embodiment, the third information also includes an energy-related analysis result corresponding to at least one RSC; an energy-related analysis result corresponding to at least one RSC combination; an energy-related analysis result corresponding to at least one URSP rule; and an energy-related analysis result corresponding to at least one traffic descriptor. The energy-related analysis results include statistical results or prediction results, that is, the energy consumption or energy efficiency that can be achieved by using the URSP rule, or the RSD or RSC under the URSP rule, etc., and the energy consumption or energy efficiency that can be achieved can also be predicted.

[0220] In one embodiment, the third information may also include at least one URSP rule, that is, the NWDAF provides a URSP rule obtained through intelligent analysis. Using this rule, the APP traffic can be matched to the most appropriate PDU session, and the use of this session to transmit the APP traffic has low energy consumption or high energy efficiency.

[0221] The second communication device may be an energy information management network element, and the third communication device may be a network data analytics function (NWDAF). When the first communication device does not know how to determine the URSP rule, it may send a first request to the second communication device or the third communication device, and the second communication device or the third communication device directly sends the first information such as the URSP rule to the first communication device. If the RSD under the traffic descriptor in the URSP rule is low in energy consumption or high in energy efficiency, the first communication device may directly update the URSP rule based on the received first information such as the URSP rule.

[0222] Please refer to FIG6 , which is a flowchart of an information updating method provided in an embodiment of the present application. As shown in FIG6 , the method includes the following steps:

[0223] Step 301: A fourth communication device receives a second request from a first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection assistance information S-NSSAI, a terminal identifier, and a PDU session identifier;

[0224] Step 302: The fourth communications device replaces at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

[0225] In this embodiment, at least one of the DNN and S-NSSAI of the terminal or session can be replaced according to the second request of the first communication device, so that the terminal or session uses a DNN and / or S-NSSAI with low energy consumption or high energy efficiency, which is conducive to network energy saving.

[0226] Among them, the second DNN has lower energy consumption or higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI has lower energy consumption or higher energy efficiency than the S-NSSAI of the current terminal or session.

[0227] In this embodiment, the first communication device can update the DNN and / or S-NSSAI used by the terminal, or the DNN and / or S-NSSAI being used by the terminal PDU session, to a DNN and / or S-NSSAI with lower energy consumption or higher energy efficiency, which helps to use a DNN or slice with lower energy consumption or higher energy efficiency for terminal traffic transmission, thereby achieving network energy saving.

[0228] In some embodiments, the first information includes at least one of the following:

[0229] Energy-related information corresponding to at least one first parameter, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC;

[0230] Energy-related information corresponding to at least one first parameter combination, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the RSC combination;

[0231] at least one first parameter, so that the first communication device can update the URSP rule according to the RSC in the first information;

[0232] At least one first parameter combination, where an RSC combination refers to a combination of multiple parameters in an RSC, such as a combination of DNN+S-NSSAI+SSC, so that the first communication device can update the URSP rule according to the RSC combination in the first information;

[0233] energy-related information corresponding to at least one URSP rule, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the URSP rule;

[0234] Energy-related information corresponding to at least one traffic descriptor, so that the first communication device can update the URSP rule according to the energy-related information corresponding to the traffic descriptor;

[0235] at least one URSP rule, so that the first communication device can update the URSP rule according to the URSP rule in the first information;

[0236] The visited public land mobile network VPLMN specific offloading policy or specific offloading information can enable the first communication device to update the URSP rule according to the VPLMN specific offloading policy or specific offloading information.

[0237] In some embodiments, the first parameter includes at least one of the following:

[0238] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0239] In some embodiments, the first parameter combination is a combination of at least two of the following RSCs:

[0240] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0241] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0242] In some embodiments, the first information further includes at least one of the following:

[0243] The location corresponding to the energy-related information, i.e., the energy-related information is the energy-related information at this location;

[0244] The time window corresponding to the energy related information, that is, the energy related information is the energy related information within this time window.

[0245] The location here refers to the terminal location, that is, the energy information corresponding to the PDU session using the URSP rule or RSC at the terminal location; the time window refers to the energy information corresponding to the URSP rule or RSC used by the terminal within the time range.

[0246] In one embodiment, the PCF determines the URSP rule for the terminal. For a certain RSC in the RSD, the PCF does not know its energy-related information, and therefore cannot determine the URSP rule.

[0247] Taking the first communication device as a PCF and the second communication device as an energy information management network element as an example, as shown in FIG7 , this embodiment includes the following steps:

[0248] Step 1: The PCF sends a request to the energy information management network element to obtain energy-related information of an RSC, where the RSC includes any of the following: SSC mode, DNN, S-NSSAI, PDU session type, Access type. The request includes at least one of the following:

[0249] SSC mode, DNN, S-NSSAI, PDU session type, Access type;

[0250] At least one traffic descriptor, such as an application descriptor;

[0251] Terminal identifier;

[0252] Terminal location information;

[0253] Time Window: This field indicates the time during which the URSP rule is executed.

[0254] Step 2: The energy information management network element sends a response to the PCF. The response includes energy-related information of a single RSC, including energy consumption information or energy efficiency information. The response may also include the location, time window, and / or corresponding traffic descriptor in which the energy-related information is effective.

[0255] Step 3: The PCF selects RSC parameters based on the energy-related information fed back by the energy information management network element and generates URSP rules. When selecting RSC parameters, the PCF selects RSCs with high energy efficiency or low energy consumption as the RSCs in the URSP rules. For example, among multiple DNNs, the DNN with the lowest energy consumption is selected as the DNN in the RSD.

[0256] In this embodiment, the PCF may send a request to the network element that stores energy-related information, and provide energy-related information corresponding to at least one item in the RSC parameters, for example, requesting at least one energy-related information of parameters such as DNN, S-NSSAI, and Access type. The PCF determines the RSC in the URSP rule based on the energy-related information. The determination method is to use the RSC corresponding to the low energy consumption or high energy efficiency as the RSC in the URSP rule of the terminal. For example: PCF requests the energy-related information corresponding to DNN1 and DNN2 respectively, and based on the energy-related information of the two, uses the DNN with low energy consumption or high energy efficiency as the DNN in the RSC in the URSP rule sent to the terminal. The same applies to the remaining parameters.

[0257] In this embodiment, PCF generates URSP rules based on the energy-related information of RSC, and selects RSC with high energy efficiency or low energy consumption as the RSC in the URSP rule, so that the terminal can use slices or DNNs with low energy consumption or high energy efficiency to achieve network energy saving.

[0258] In another embodiment, the PCF determines the URSP rule for the terminal, wherein the PCF is unable to determine the URSP rule for some RSCs in the RSD because the PCF does not know their energy-related information.

[0259] Taking the first communication device as a PCF and the second communication device as an energy information management network element as an example, as shown in FIG8 , this embodiment includes the following steps, providing an implementation method for the PCF to obtain energy-related information and determine or update the RSC in the URSP rule based on the energy-related information:

[0260] Step 1: The PCF sends a request to the energy information management network element to obtain energy-related information of at least one RSC, where the RSC includes at least one of the following: SSC mode, DNN, S-NSSAI, PDU session type, and Access type. The request includes at least one of the following:

[0261] at least one RSC;

[0262] At least one traffic descriptor, such as an application descriptor;

[0263] Terminal identifier;

[0264] Terminal location information;

[0265] Time Window: used to indicate the time for executing the URSP rule.

[0266] Step 2: The energy information management network element sends a response to the PCF. The response includes energy-related information of at least one RSC or combination of RSCs, including energy consumption information or energy efficiency information. The response may also include the location and time window in which the energy-related information is effective and / or the traffic descriptor corresponding to the RSC or combination of RSCs.

[0267] Step 3: The PCF selects RSC parameters based on the energy-related information fed back by the energy information management network element and generates URSP rules. An RSD includes multiple RSC combinations. When selecting RSC parameters, the PCF prioritizes an RSC combination with low energy consumption or high energy efficiency.

[0268] In this embodiment, PCF requests energy-related information of a set of RSC parameters from the network element that stores energy-related information, and determines the priority of the RSD in the URSP rule based on the energy-related information. For example: PCF requests energy-related information corresponding to RSD 1 = {DNN1 + S-NSSAI-a} and RSD 2 = {DNN2 + S-NSSAI-b} respectively. Based on the energy-related information of the two, the RSD with low energy consumption or high energy efficiency is given a high priority in the URSP rule sent to the terminal. The same applies to the remaining parameters. If there are multiple candidate RSDs under a traffic descriptor, the priorities of different RSDs can be distinguished.

[0269] In this embodiment, PCF generates URSP rules based on energy-related information of at least one RSC or RSC combination, and selects an RSC combination with high energy efficiency or low energy consumption as the RSC in the URSP rule, so that the terminal can use slices or DNNs with low energy consumption or high energy efficiency to achieve network energy saving.

[0270] In this embodiment, after the PCF receives energy-related information, the PCF can adjust the URSP rules, for example, replacing the RSC with higher energy consumption with the RSC with lower energy consumption; lowering the priority of the combination of RSCs with higher energy consumption, or replacing the RSC combination with the RSC combination with lower energy consumption; or directly setting the RSD corresponding to the energy-related information to the RSD under a certain URSP rule, and so on.

[0271] In another embodiment, the PCF can also directly obtain the URSP rules. Taking the first communication device as the PCF, the second communication device as the energy information management network element, and the third communication device as the NWDAF as an example, as shown in Figure 9, this embodiment includes the following steps:

[0272] Step 1: The PCF sends a request to the NWDAF to obtain the intelligently generated URSP rules; the URSP rules are rules generated based on the specified traffic descriptor. The request includes at least one of the following:

[0273] Traffic descriptor;

[0274] Terminal identifier;

[0275] at least one of the RSCs;

[0276] Terminal location;

[0277] Time window.

[0278] Step 2: NWDAF collects energy-related data from the energy information management network element, including at least one of the following:

[0279] At least one RSC, such as DNN, S-NSSAI, and other energy-related information;

[0280] Energy-related information corresponding to the traffic descriptor.

[0281] Step 3: NWDAF obtains energy-related information;

[0282] Step 4: NWDAF generates an intelligent URSP rule based on energy-related information. The RSD under the traffic descriptor in the URSP rule is an RSD with low energy consumption or high energy efficiency. The traffic descriptor of the URSP rule is the traffic descriptor specified by the PCF in step 1.

[0283] Step 5: NWDAF sends the intelligent URSP rules to PCF.

[0284] Afterwards, PCF can directly use the received URSP rule as the URSP rule of the terminal. The RSC in the URSP rule is an RSC with high energy efficiency or low energy consumption, which enables the terminal to use slices or DNNs with low energy consumption or high energy efficiency to achieve network energy saving.

[0285] This method is suitable for the case where the PCF has no idea how to configure the URSP rules. Therefore, it directly sends information such as traffic descriptors, terminal locations, and time windows to the NWDAF or the energy-related information storage network element. The NWDAF or the energy-related information storage network element can then send recommended URSP rules to the PCF.

[0286] For example, the PCF sends a traffic descriptor with FQDN = "ABC.com" to the NWDAF or the network element that stores energy-related information. Then, these network elements can analyze which PDU session should be used to most energy-efficiently when accessing this FQDN. For example, the output result is: DNN1+S-NSSAI-a, indicating the lowest energy consumption.

[0287] Then, DNN1+S-NSSAI-a can be used as the URSP rule and sent to the terminal side.

[0288] In another embodiment, the DNN and / or S-NSSAI in the URSP rule can be replaced based on energy-related information. As shown in Figure 10, this embodiment includes the following steps:

[0289] Step 1: The AMF sends a policy association establishment request to the PCF to obtain or update the AM policy. The policy association establishment request can be Npcf_AMPolicyControl_Create or Npcf_AMPolicyControl_Update;

[0290] Step 2: PCF sends a response to AMF. The response can be Npcf_AMPolicyControl_Createresponse or Npcf_AMPolicyControl_Update response. The response carries the AM policy and a Policy Control Request Trigger (PCRT). The PCRT can carry a DNN or S-NSSAI list. When the AMF receives the DNN or S-NSSAI sent by the UE and it belongs to the list, the AMF executes steps 4-5 to determine whether to replace the DNN or S-NSSAI in the URSP rule. The PCRT can also indicate an energy consumption or energy efficiency threshold. When the energy consumption of the DNN or S-NSSAI sent by the UE is higher than the energy consumption threshold, or the energy efficiency is lower than the energy efficiency threshold, steps 6-7 are triggered to replace the DNN or S-NSSAI in the URSP rule.

[0291] Step 3: AMF receives the DNN or S-NSSAI sent by the UE;

[0292] Step 4: AMF sends a request to the energy information management network element to obtain energy-related information of DNN or S-NSSAI;

[0293] Step 5: The AMF obtains energy-related information of the DNN or S-NSSAI, compares the energy consumption of the DNN or S-NSSAI with the energy consumption threshold, or compares the energy efficiency of the DNN or S-NSSAI with the energy efficiency threshold; or determines whether the DNN or S-NSSAI belongs to the DNN or S-NSSAI list in the PCRT;

[0294] Step 6: When the energy consumption of the DNN or S-NSSAI sent by the UE is higher than the energy consumption threshold, or the energy efficiency is lower than the energy efficiency threshold, or the DNN or S-NSSAI sent by the UE belongs to the DNN or S-NSSAI list, the AMF sends a policy update request to the PCF, requesting the PCF to replace the DNN or S-NSSAI in the URSP rule;

[0295] Step 7: The PCF sends a response to the AMF, replacing the DNN or S-NSSAI in the URSP rule.

[0296] In this embodiment, the DNN or S-NSSAI in the URSP rule can be replaced according to energy-related information, so that the terminal can use slices or DNNs with low energy consumption or high energy efficiency to achieve network energy saving.

[0297] Another embodiment includes the following steps:

[0298] Step 1: The AMF sends a policy association establishment request to the PCF to obtain or update the AM policy. The policy association establishment request can be Npcf_AMPolicyControl_Create or Npcf_AMPolicyControl_Update;

[0299] Step 2: PCF sends a response to AMF, which may be Npcf_AMPolicyControl_Create response or Npcf_AMPolicyControl_Update response. The response carries the AM policy and a Policy Control Request Trigger (PCRT). The PCRT instructs AMF that when the energy consumption of the DNN or S-NSSAI serving the current terminal increases or the energy efficiency decreases, AMF notifies PCF and triggers an AM policy update request to notify PCF to replace the DNN or S-NSSAI serving the current terminal. PCF can also configure threshold information or threshold information for AMF. When the energy consumption of the DNN or S-NSSAI increases or the energy efficiency decreases, and the energy consumption increases or the energy efficiency decreases, exceeding the threshold or threshold, AMF notifies PCF.

[0300] Step 3: AMF subscribes to the current DNN or S-NSSAI energy-related information from NWDAF or energy information management network element;

[0301] Step 4: NWDAF or energy information management network element notifies AMF that the energy consumption of the DNN or S-NSSAI increases or the energy efficiency decreases. When the energy consumption increases or the energy efficiency decreases and exceeds the threshold, AMF triggers Npcf_AMPolicyControl_Update request to request to replace the DNN or slice.

[0302] Step 5: The PCF sends an Npcf_AMPolicyControl_Update response to send the updated slice or DNN to the AMF. The PCF can also request energy information of a third DNN or a third S-NSSAI from the energy information management network element, or NWDAF (the third DNN or third S-NSSAI is used to replace the DNN or S-NSSAI of the current service terminal).

[0303] Another embodiment includes the following steps:

[0304] Step 1: The PCF subscribes to the energy-related information of the current DNN or S-NSSAI from the NWDAF or energy information management network element; the DNN or S-NSSAI is the data network or slice serving the current terminal or terminal session;

[0305] Step 2: NWDAF or energy information management network element notifies PCF of the energy-related information of the DNN or S-NSSAI. If the change in energy consumption or energy efficiency exceeds the PCF built-in threshold or threshold, PCF triggers AM or SM policy update and sends at least one signaling to AMF or SMF, Npcf_AMPolicyControl_UpdateNotify or Npcf_SMPolicyControl_UpdateNotify, requesting AMF or SMF to replace the DNN or slice of the current service terminal or PDU session. The new DNN or S-NSSAI to be replaced has lower energy consumption or higher energy efficiency than the DNN or S-NSSAI of the current service terminal or PDU session.

[0306] In this patent, DNN, or the local part of DN, can be replaced by data network, or replaced by network; S-NSSAI can be replaced by slice.

[0307] In another embodiment, the PCF may generate URSP rules according to an offload policy. Taking the first communication device as the PCF for the terminal and the second communication device as the PCF for the session as an example, as shown in FIG11 , this embodiment includes the following steps:

[0308] Step 1: The PCF for the terminal (PCF for UE) sends a request to the PCF for the session to obtain the VPLMN Specific Offloading Policy, or the PCF for the terminal sends a request to the SMF to obtain the VPLMN Specific Offloading Information; the VPLMN Specific Offloading Information includes at least one of the following: an IP address range or a fully qualified domain name FQDN range that is allowed to be routed to the local DN; an IP address range or FQDN range that is not allowed to be routed to the local DN;

[0309] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0310] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0311] Another implementation manner is that the PCF used for the session actively sends the VPLMN Specific Offloading Policy to the PCF for UE, or the SMF actively sends the VPLMN Specific Offloading Information to the PCF for UE.

[0312] The request also includes at least one of the following:

[0313] Terminal identifier;

[0314] HR-SBO allowed indication: used to indicate that session breakout is allowed in the roaming location.

[0315] PLMN ID, used to identify the operator network where the terminal is located.

[0316] Step 2: The PCF for session sends a response to the PCF for the terminal, where the response includes the VPLMN Specific Offloading Policy; or the SMF sends a response to the PCF for the terminal, where the response includes the VPLMN Specific Offloading Information.

[0317] The VPLMN Specific Offloading Policy or VPLMN Specific Offloading Information includes: an IP range or FQDN range allowed to be routed to the local part of DN in VPLMN or an IP range or FQDN range not allowed to be routed to the local part of DN in VPLMN.

[0318] Step 3: The PCF for the terminal generates a URSP rule based on the received information. The generated URSP rule satisfies at least one of the following:

[0319] For IP ranges or FQDN ranges that are not allowed to be routed to the local DN (the corresponding traffic descriptor is an IP descriptor belonging to a not allowed IP range or a domain descriptor belonging to a not allowed FQDN range; or it can be understood that the IP address in the IP descriptor is not allowed to be routed to the local DN, and the domain name descriptor is not allowed to be routed to the local FQDN), at least one RSC in the RSD of the URSP rule or under the RSD (that is, the IP address in the IP descriptor is not allowed to be routed to the local DN, and the domain name descriptor is not allowed to be routed to the local FQDN, and the RSD is the RSD under the IP descriptor or the domain name descriptor) cannot include a DNN or S-NSSAI that meets the following conditions: the DNN corresponds to the local DN or the S-NSSAI is a slice that accesses the local DN. Alternatively, for IP ranges or FQDN ranges that are not allowed to be routed to the local DN, if the IP descriptor contains IP addresses that are not allowed to be routed to the local DN, and the domain name descriptor contains FQDNs that are not allowed to be routed to the local, then a Match all rule can be set for it to route such traffic to the home routed session; or, RSD can be set to match the traffic to the home routed session.

[0320] For the IP range or FQDN range allowed to be routed to the local DN (the corresponding traffic descriptor is the IP descriptor belonging to the allowed IP range or the domain descriptor belonging to the allowed FQDN range), the RSD of the URSP rule may include a DNN or S-NSSAI that meets the following conditions: the DNN corresponds to the local DN of the roaming area or the S-NSSAI is a slice of the access local DN.

[0321] In this embodiment, the URSP rules generated by the PCF for UE based on the policy information must meet the following conditions:

[0322] For IP addresses or FQDNs that are not allowed to be locally routed, the RSC in the RSD in the URSP rule does not include the local DNN or the slice that accesses the local DNN to avoid matching the disallowed traffic to the local session in the roaming location.

[0323] Alternatively, for IP addresses or FQDNs that do not allow local routing, the RSC in the RSD in the URSP rule can only be the home network DNN or slice. This will prevent traffic from being allowed to be routed locally and will only match the home routed session.

[0324] In this embodiment, it is possible to avoid routing traffic that is not allowed to be routed to the local DN to the local DN or routing traffic to the local using a session that accesses the local slice.

[0325] The information updating method provided in the embodiment of the present application can be executed by an information updating device. In the embodiment of the present application, the information updating device provided in the embodiment of the present application is described by taking the information updating method executed by the information updating device as an example.

[0326] Please refer to FIG12, which is a schematic diagram of the structure of an information updating device provided in an embodiment of the present application. The device is applied to the first communication device 1. As shown in FIG12, the information updating device includes:

[0327] Receiving module 11, used to obtain first information;

[0328] The updating module 12 is configured to update second information according to the first information, wherein the second information is used by the terminal to determine a routing method for outbound traffic.

[0329] In an embodiment of the present application, a first communication device obtains first information and updates second information based on the first information. The second information is used by the terminal to determine the routing method of outbound traffic. For example, the first information may include energy-related information, and the second information may be a URSP rule or a terminal policy. In this way, a URSP rule can be generated based on energy-related information, so that the terminal selects a routing method with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving.

[0330] In some embodiments, the update module is specifically configured to perform at least one of the following:

[0331] Selecting the path selection parameter RSC with the lowest energy consumption or the highest energy efficiency as the RSC in the second information;

[0332] Selecting an RSC combination with the lowest energy consumption or the highest energy efficiency as the RSC combination in the second information, wherein the RSC combination includes at least one RSC;

[0333] Selecting the routing descriptor RSD with the lowest energy consumption or the highest energy efficiency as the RSD in the second information;

[0334] selecting a user equipment routing option policy URSP rule with the lowest energy consumption or the highest energy efficiency as the second information;

[0335] At least one of the first data network name DNN and the first single network slice selection auxiliary information S-NSSAI is not selected as a parameter in the RSD in the IP descriptor or domain name descriptor in the second information; the IP descriptor includes at least one address that is not allowed to be routed to the local data network DN; the domain name descriptor includes at least one domain name that is not allowed to be routed to the local DN; the first DNN is the data network name of the local DN, the first protocol data unit PDU session belongs to the first S-NSSAI, and the first PDU session accesses the local DN.

[0336] In some embodiments, the first information includes at least one of the following:

[0337] energy-related information corresponding to at least one first parameter;

[0338] energy-related information corresponding to at least one first parameter combination;

[0339] at least one first parameter;

[0340] at least one first parameter combination;

[0341] Energy-related information corresponding to at least one URSP rule;

[0342] energy-related information corresponding to at least one traffic descriptor;

[0343] At least one URSP rule;

[0344] Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

[0345] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0346] In some embodiments, the first information further includes at least one of the following:

[0347] The location corresponding to the energy related information;

[0348] The time window corresponding to the energy-related information.

[0349] In some embodiments, the VPLMN specific offloading policy or specific offloading information includes any one of the following:

[0350] The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN;

[0351] Do not allow routing to the IP address range or FQDN range of the local DN;

[0352] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0353] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0354] In some embodiments, the apparatus further comprises:

[0355] a sending module, configured to send a first request to the second communication device or the third communication device, wherein the first request is used to request obtaining first information;

[0356] The first request includes at least one of the following:

[0357] at least one of the first parameters;

[0358] at least one RSC;

[0359] at least one RSC combination;

[0360] at least one traffic descriptor;

[0361] At least one URSP rule;

[0362] Terminal identifier;

[0363] Terminal location information;

[0364] Time window.

[0365] In some embodiments, the RSC or the first parameter includes at least one of the following:

[0366] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0367] In some embodiments, the RSC combination or the first parameter combination is a combination of at least two of the following RSCs:

[0368] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0369] In some embodiments, the sending module is further used to send a second request to a fourth communication device based on the first information, wherein the second request is used to replace at least one of the DNN and S-NSSAI of the terminal or session, and the second request includes at least one of the following: a second DNN, a second S-NSSAI, a terminal identifier, and a PDU session identifier.

[0370] In some embodiments, the second DNN consumes less energy or has higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI consumes less energy or has higher energy efficiency than the S-NSSAI of the current terminal or session.

[0371] Please refer to FIG. 13 , which is a schematic diagram of the structure of an information updating device provided in an embodiment of the present application. The device is applied to a network-side device 2 . As shown in FIG. 13 , the information updating device includes:

[0372] The sending module 21 is used to send first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine a routing method for outbound traffic.

[0373] In this embodiment, the network side device sends first information to the first communication device so that the first communication device updates second information based on the first information. The second information is used by the terminal to determine the routing method of outbound traffic. For example, the first information may include energy-related information, and the second information may be a URSP rule or a terminal policy. In this way, a URSP rule can be generated based on energy-related information, so that the terminal selects a routing method with lower energy consumption or higher energy efficiency, which helps to achieve network energy saving.

[0374] In some embodiments, the first information includes at least one of the following:

[0375] energy-related information corresponding to at least one first parameter;

[0376] energy-related information corresponding to at least one first parameter combination;

[0377] at least one first parameter;

[0378] at least one first parameter combination;

[0379] Energy-related information corresponding to at least one URSP rule;

[0380] energy-related information corresponding to at least one traffic descriptor;

[0381] At least one URSP rule;

[0382] Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

[0383] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0384] In some embodiments, the first information further includes at least one of the following:

[0385] The location corresponding to the energy related information;

[0386] The time window corresponding to the energy-related information.

[0387] In some embodiments, the VPLMN specific offloading policy or specific offloading information includes any one of the following:

[0388] The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN;

[0389] Do not allow routing to the IP address range or FQDN range of the local DN;

[0390] The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments;

[0391] The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

[0392] In some embodiments, the network-side device includes a second communication device, and the apparatus further includes:

[0393] a receiving module, configured to receive a first request from the first communication device, where the first request is used to request obtaining first information;

[0394] The first request includes at least one of the following:

[0395] at least one of the first parameters;

[0396] at least one RSC;

[0397] at least one RSC combination;

[0398] at least one traffic descriptor;

[0399] At least one URSP rule;

[0400] Terminal identifier;

[0401] Terminal location information;

[0402] Time window.

[0403] In some embodiments, the network side device includes a third communication device and a second communication device.

[0404] The receiving module is further configured to receive a first request from the first communication device, the first request being configured to request obtaining first information, the first request including at least one of the following: at least one of the first parameters; at least one RSC; at least one RSC combination; at least one traffic descriptor; at least one URSP rule; a terminal identifier; terminal location information; and a time window.

[0405] The sending module is further configured to send a third request to the second communication device;

[0406] The receiving module is further used to receive third information of the second communication device, the third information including at least one of the following: energy-related information corresponding to at least one RSC; energy-related information corresponding to at least one RSC combination; energy-related information corresponding to at least one URSP rule; energy-related information corresponding to at least one traffic descriptor.

[0407] In some embodiments, the RSC or the first parameter includes at least one of the following:

[0408] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0409] In some embodiments, the RSC combination or the first parameter combination is a combination of at least two of the following RSCs:

[0410] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0411] Please refer to FIG. 14 , which is a schematic diagram of the structure of an information updating apparatus provided in an embodiment of the present application. The apparatus is applied to the fourth communication device 3. As shown in FIG. 14 , the information updating apparatus includes:

[0412] A request receiving module 31 is configured to receive a second request from a first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier;

[0413] The replacement module 32 is configured to replace at least one of the DNN and the S-NSSAI of the terminal or session according to the second request.

[0414] In this embodiment, at least one of the DNN and S-NSSAI of the terminal or session can be replaced according to the second request of the first communication device, so that the terminal or session uses a DNN and / or S-NSSAI with low energy consumption or high energy efficiency, which is conducive to network energy saving.

[0415] In some embodiments, the second DNN consumes less energy or has higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI consumes less energy or has higher energy efficiency than the S-NSSAI of the current terminal or session.

[0416] In some embodiments, the first information includes at least one of the following:

[0417] energy-related information corresponding to at least one first parameter;

[0418] energy-related information corresponding to at least one first parameter combination;

[0419] at least one first parameter;

[0420] at least one first parameter combination;

[0421] Energy-related information corresponding to at least one URSP rule;

[0422] Energy-related information corresponding to at least one traffic descriptor.

[0423] In some embodiments, the energy-related information includes at least one of the following: energy consumption information, energy efficiency information.

[0424] In some embodiments, the first information further includes at least one of the following:

[0425] The location corresponding to the energy related information;

[0426] The time window corresponding to the energy-related information.

[0427] In some embodiments, the RSC or the first parameter includes at least one of the following:

[0428] Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

[0429] In some embodiments, the RSC combination or the first parameter combination is a combination of at least two of the following RSCs:

[0430] SSC mode, DNN, S-NSSAI, PDU session type, Access type.

[0431] The information updating device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.

[0432] The information updating device provided in the embodiment of the present application can implement each process implemented in the above method embodiment and achieve the same technical effect. To avoid repetition, it will not be described here.

[0433] As shown in Figure 15, an embodiment of the present application also provides a communication device 40, including a processor 41 and a memory 42, and the memory 42 stores programs or instructions that can be run on the processor 41. When the communication device 40 is a network side device, the program or instructions are executed by the processor 41 to implement the various steps of the above-mentioned information update method embodiment and can achieve the same technical effect. To avoid repetition, they will not be repeated here.

[0434] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown above. This network-side device embodiment corresponds to the above-described network-side device method embodiment, and each implementation process and implementation method of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effects.

[0435] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 16, the network-side device 60 includes an antenna 61, a radio frequency device 62, a baseband device 63, a processor 64, and a memory 65. Antenna 61 is connected to radio frequency device 62. In the uplink direction, radio frequency device 62 receives information via antenna 61 and sends the received information to baseband device 63 for processing. In the downlink direction, baseband device 63 processes the information to be transmitted and sends it to radio frequency device 62. Radio frequency device 62 processes the received information and then sends it through antenna 61.

[0436] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 63 , which includes a baseband processor.

[0437] The baseband device 63 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of the chips is, for example, a baseband processor, which is connected to the memory 65 through a bus interface to call the program in the memory 65 and execute the network side device operations shown in the above method embodiment.

[0438] The network side device may further include a network interface 66, which is, for example, a Common Public Radio Interface (CPRI).

[0439] Specifically, the network side device 60 of the embodiment of the present application also includes: instructions or programs stored in the memory 65 and executable on the processor 64. The processor 64 calls the instructions or programs in the memory 65 to execute the methods executed by the modules shown in Figures 12-14 and achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0440] Specifically, the embodiment of the present application further provides a network side device. As shown in FIG17 , the network side device 50 includes: a processor 51, a network interface 52, and a memory 53. The network interface 52 is, for example, a common public radio interface (CPRI).

[0441] Specifically, the network side device 50 of the embodiment of the present application also includes: instructions or programs stored in the memory 53 and executable on the processor 51. The processor 51 calls the instructions or programs in the memory 53 to execute the methods executed by the modules shown in Figures 12-14 and achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0442] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned information update method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0443] 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, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0444] 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 of the above-mentioned information update method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0445] It should be understood that 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.

[0446] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned information update method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0447] An embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device, wherein the network-side device can be used to execute the steps of the information updating method described above.

[0448] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0449] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for causing a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0450] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. An information updating method, comprising: The first communication device obtains first information; The first communication device updates second information according to the first information, wherein the second information is used by the terminal to determine a routing method for outbound traffic.

2. The method according to claim 1, wherein The first communication device updates the second information according to the first information, including at least one of the following: The first communication device selects the path selection parameter RSC with the lowest energy consumption or the highest energy efficiency as the RSC in the second information; The first communication device selects an RSC combination with the lowest energy consumption or the highest energy efficiency as the RSC combination in the second information, where the RSC combination includes at least one RSC; The first communication device selects the routing descriptor RSD with the lowest energy consumption or the highest energy efficiency as the RSD in the second information; The first communication device selects a user equipment routing option policy (URSP) rule with the lowest energy consumption or the highest energy efficiency as the second information; The first communication device does not select at least one of the first data network name DNN and the first single network slice selection auxiliary information S-NSSAI as a parameter in the RSD in the IP descriptor or domain name descriptor in the second information; the IP descriptor includes at least one address that is not allowed to be routed to the local data network DN; the domain name descriptor includes at least one domain name that is not allowed to be routed to the local DN; the first DNN is the data network name of the local DN, the first protocol data unit PDU session belongs to the first S-NSSAI, and the first PDU session accesses the local DN.

3. The method according to claim 1, wherein The first information includes at least one of the following: energy-related information corresponding to at least one first parameter; energy-related information corresponding to at least one first parameter combination; at least one first parameter; at least one first parameter combination; Energy-related information corresponding to at least one URSP rule; energy-related information corresponding to at least one traffic descriptor; At least one URSP rule; Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

4. The method according to claim 3, wherein: The energy-related information includes at least one of the following: energy consumption information and energy efficiency information.

5. The method according to claim 3, wherein The first information also includes at least one of the following: The location corresponding to the energy related information; The time window corresponding to the energy-related information.

6. The method according to claim 3, wherein: The VPLMN specific offloading policy or specific offloading information includes any one of the following: The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN; Do not allow routing to the IP address range or FQDN range of the local DN; The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments; The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

7. The method according to claim 1, further comprising: The first communication device sends a first request to the second communication device or the third communication device, where the first request is used to request obtaining first information; The first request includes at least one of the following: at least one of the first parameters; at least one RSC; at least one RSC combination; at least one traffic descriptor; At least one URSP rule; Terminal identifier; Terminal location information; Time window.

8. The method according to claim 2, 3 or 7, wherein: The RSC or the first parameter includes at least one of the following: Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

9. The method according to claim 2 or 3, wherein: The RSC combination or the first parameter combination is a combination of at least two of the following: SSC mode, DNN, S-NSSAI, PDU session type, Access type.

10. The method according to claim 1, further comprising: The first communication device sends a second request to the fourth communication device based on the first information, where the second request is used to change at least one of the DNN and S-NSSAI of the terminal or session, and the second request includes at least one of the following: a second DNN, a second S-NSSAI, a terminal identifier, and a PDU session identifier.

11. The method according to claim 10, wherein: The second DNN has lower energy consumption or higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI has lower energy consumption or higher energy efficiency than the S-NSSAI of the current terminal or session.

12. An information updating method, comprising: The network side device sends first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine a routing method for outbound traffic.

13. The method according to claim 12, wherein: The first information includes at least one of the following: energy-related information corresponding to at least one first parameter; energy-related information corresponding to at least one first parameter combination; at least one first parameter; at least one first parameter combination; Energy-related information corresponding to at least one URSP rule; energy-related information corresponding to at least one traffic descriptor; At least one URSP rule; Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

14. The method according to claim 13, wherein: The energy-related information includes at least one of the following: energy consumption information and energy efficiency information.

15. The method according to claim 13, wherein The first information also includes at least one of the following: The location corresponding to the energy related information; The time window corresponding to the energy-related information.

16. The method according to claim 13, wherein: The VPLMN specific offloading policy or specific offloading information includes any one of the following: The IP address range or fully qualified domain name FQDN range that is allowed to route to the local DN; Do not allow routing to the IP address range or FQDN range of the local DN; The IP address range includes at least one of the following: one or more IP addresses, one or more IP address segments; The FQDN range includes at least one of the following: one or more FQDNs, and one or more FQDN ranges.

17. The method according to claim 12, wherein: The network side device includes a second communication device, and the method further includes: The second communication device receives a first request from the first communication device, where the first request is used to request obtaining first information; The first request includes at least one of the following: at least one of the first parameters; at least one RSC; at least one RSC combination; at least one traffic descriptor; At least one URSP rule; Terminal identifier; Terminal location information; Time window.

18. The method according to claim 12, wherein: The network-side device includes a third communication device and a second communication device, and the method further includes: The third communication device receives a first request from the first communication device, where the first request is used to request obtaining first information, and the first request includes at least one of the following: at least one of the first parameters; at least one RSC; at least one RSC combination; at least one traffic descriptor; at least one URSP rule; a terminal identifier; terminal location information; and a time window. The third communication device sends a third request to the second communication device; The third communication device receives third information from the second communication device, where the third information includes at least one of the following: energy-related information corresponding to at least one RSC; energy-related information corresponding to at least one RSC combination; energy-related information corresponding to at least one URSP rule; and energy-related information corresponding to at least one traffic descriptor.

19. The method according to claim 12, 13 or 18, wherein: The RSC or the first parameter includes at least one of the following: Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

20. The method according to claim 12 or 13, wherein The RSC combination or the first parameter combination is a combination of at least two of the following RSCs: SSC mode, DNN, S-NSSAI, PDU session type, Access type.

21. An information updating method, comprising: The fourth communication device receives a second request from the first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier; The fourth communication device replaces at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

22. The method according to claim 21, wherein The second DNN has lower energy consumption or higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI has lower energy consumption or higher energy efficiency than the S-NSSAI of the current terminal or session.

23. The method according to claim 21, wherein The first information includes at least one of the following: energy-related information corresponding to at least one first parameter; energy-related information corresponding to at least one first parameter combination; at least one first parameter; at least one first parameter combination; Energy-related information corresponding to at least one URSP rule; Energy-related information corresponding to at least one traffic descriptor.

24. The method according to claim 23, wherein The energy-related information includes at least one of the following: energy consumption information and energy efficiency information.

25. The method according to claim 23, wherein The first information also includes at least one of the following: The location corresponding to the energy related information; The time window corresponding to the energy-related information.

26. The method according to claim 23, wherein The first parameter includes at least one of the following: Session and service continuity mode SSC mode, DNN, S-NSSAI, PDU session type PDU session type, access type Access type.

27. The method according to claim 23, wherein The first parameter combination is a combination of at least two of the following RSCs: SSC mode, DNN, S-NSSAI, PDU session type, Access type.

28. An information updating apparatus, applied to a first communication device, comprising: A receiving module, configured to obtain first information; An updating module is used to update second information according to the first information, where the second information is used by the terminal to determine a routing method for outbound traffic.

29. The apparatus according to claim 28, wherein The update module is specifically configured to perform at least one of the following: Selecting the path selection parameter RSC with the lowest energy consumption or the highest energy efficiency as the RSC in the second information; Selecting an RSC combination with the lowest energy consumption or the highest energy efficiency as the RSC combination in the second information, wherein the RSC combination includes at least one RSC; Selecting the routing descriptor RSD with the lowest energy consumption or the highest energy efficiency as the RSD in the second information; selecting a user equipment routing option policy URSP rule with the lowest energy consumption or the highest energy efficiency as the second information; At least one of the first data network name DNN and the first single network slice selection auxiliary information S-NSSAI is not selected as a parameter in the RSD in the IP descriptor or domain name descriptor in the second information; the IP descriptor includes at least one address that is not allowed to be routed to the local data network DN; the domain name descriptor includes at least one domain name that is not allowed to be routed to the local DN; the first DNN is the data network name of the local DN, the first protocol data unit PDU session belongs to the first S-NSSAI, and the first PDU session accesses the local DN.

30. The apparatus according to claim 28, wherein The first information includes at least one of the following: energy-related information corresponding to at least one first parameter; energy-related information corresponding to at least one first parameter combination; at least one first parameter; at least one first parameter combination; Energy-related information corresponding to at least one URSP rule; energy-related information corresponding to at least one traffic descriptor; At least one URSP rule; Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

31. An information updating device, applied to a network-side device, comprising: The sending module is used to send first information to the first communication device, where the first information is used to update second information, and the second information is used by the terminal to determine the routing method of outbound traffic.

32. The apparatus according to claim 31, wherein The first information includes at least one of the following: energy-related information corresponding to at least one first parameter; energy-related information corresponding to at least one first parameter combination; at least one first parameter; at least one first parameter combination; Energy-related information corresponding to at least one URSP rule; energy-related information corresponding to at least one traffic descriptor; At least one URSP rule; Visited Public Land Mobile Network (VPLMN) specific offloading policy or specific offloading information.

33. An information updating device, applied to a fourth communication device, comprising: a request receiving module, configured to receive a second request from a first communication device, where the second request is sent by the first communication device according to the first information, and the second request includes at least one of the following: a second data network name DNN, second single network slice selection auxiliary information S-NSSAI, a terminal identifier, and a PDU session identifier; A replacement module is used to replace at least one of the DNN and S-NSSAI of the terminal or session according to the second request.

34. The apparatus according to claim 33, wherein The second DNN has lower energy consumption or higher energy efficiency than the DNN of the current terminal or session; the second S-NSSAI has lower energy consumption or higher energy efficiency than the S-NSSAI of the current terminal or session.

35. A network-side device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the information update method according to any one of claims 1 to 27 are implemented.

36. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the information updating method according to any one of claims 1 to 27.

37. A computer program product comprising computer instructions, which, when executed by a processor, implement the steps of the information updating method according to any one of claims 1 to 27.

Images