CN117561780A - Communication processing method, first network element, second network element and core network equipment - Google Patents

Abstract

The disclosure relates to a communication processing method, a first network element, a second network element and core network equipment. The second network element receives first information sent by the first network element, wherein the first information is used for indicating that the second network element corresponding to the session management strategy is the same as a third network element corresponding to the terminal strategy; determining that a second network element corresponding to the session management strategy and a third network element corresponding to the terminal strategy are the same network element according to the first information, and realizing the function required by the third network element by the second network element; and sending second information to the first network element, wherein the second information is used for indicating a terminal strategy. The second information is provided for the third network element through the first information, so that communication resource waste is avoided, and communication efficiency is improved.

Description

Communication processing method, first network element, second network element and core network equipment

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a communication processing method, a first network element, a second network element, and core network equipment.

Background

In wireless communication, wireless communication networks grow exponentially. Long-Term Evolution (LTE) systems can provide high peak data rates, low latency, higher system capacity, and low operating costs due to a simplified network architecture.

Disclosure of Invention

In order to improve communication efficiency in a wireless communication system, the embodiment of the disclosure provides a communication processing method, a first network element, a second network element and core network equipment.

According to a first aspect of an embodiment of the present disclosure, a communication processing method is provided and applied to a second network element, where the method includes: receiving first information sent by a first network element, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy; determining that the second network element and the third network element are the same network element according to the first information, and realizing the function required by the third network element by the second network element; and sending second information to the first network element, wherein the second information is used for indicating the terminal strategy.

The second information is provided for the third network element through the first information, so that communication resource waste is avoided, and communication efficiency is improved.

According to a second aspect of the embodiments of the present disclosure, a communication processing method is provided, applied to a first network element, and the method includes: acquiring fourth information, and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; sending first information to a second network element, wherein the second network element and a third network element are both used for policy control; and receiving second information sent by a second network element, wherein the second information is used for indicating the terminal strategy.

According to a third aspect of the embodiments of the present disclosure, a communication processing method is provided, including: the first network element acquires fourth information, and determines first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; the first network element sends the first information to the second network element; the second network element determines that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element; and the second network element sends second information to the first network element, wherein the second information is used for indicating the terminal strategy.

According to a fourth aspect of embodiments of the present disclosure, there is provided a second network element, comprising: the receiving and transmitting module is used for receiving first information sent by a first network element, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy; the processing module is used for determining that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element; the transceiver module is further configured to send second information to the first network element, where the second information is used to indicate a terminal policy.

According to a fifth aspect of embodiments of the present disclosure, there is provided a first network element, comprising: the processing module is used for acquiring fourth information and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; the receiving and transmitting module is used for sending the first information to the second network element, wherein the second network element and the third network element are both used for policy control; and receiving second information sent by the second network element, wherein the second information is used for indicating a terminal strategy.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a core network device, including: the receiving and transmitting module is used for acquiring fourth information and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; the transceiver module is further configured to send the first information to the second network element; the processing module is used for determining that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element; the transceiver module is further configured to send second information to the first network element, where the second information is used to indicate a terminal policy.

According to a seventh aspect of embodiments of the present disclosure, there is provided a second network element, including: one or more processors; wherein the second network element is configured to perform the communication processing method of any one of the first aspects.

According to an eighth aspect of embodiments of the present disclosure, there is provided a second network element, including: one or more processors; wherein the second network element is configured to perform the communication processing method of any one of the second aspects.

According to a ninth aspect of an embodiment of the present disclosure, there is provided a core network device, including: one or more processors; wherein the core network device is configured to perform the communication processing method of the third aspect.

According to a tenth aspect of the embodiments of the present disclosure, a communication system is proposed, comprising a core network device, wherein the core network device is configured to implement the communication processing method of any one of the first aspect or the second aspect.

According to an eleventh aspect of the embodiments of the present disclosure, a communication system is provided, including a first network element device, where the first network element device is configured to implement the communication processing method of any one of the second aspects.

According to a twelfth aspect of embodiments of the present disclosure, a communication system is provided, which includes a second network element device, where the second network element device is configured to implement the communication processing method of any one of the first aspects.

According to an eleventh aspect of the embodiments of the present disclosure, there is provided a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication processing method as any one of the first or second aspects.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following description of the embodiments refers to the accompanying drawings, which are only some embodiments of the present disclosure, and do not limit the protection scope of the present disclosure in any way.

Fig. 1 is an exemplary schematic diagram of an architecture of a communication system provided in accordance with an embodiment of the present disclosure.

Fig. 1a is an interactive schematic diagram of a communication processing method according to an embodiment of the disclosure.

Fig. 2 is an exemplary interaction diagram of a communication processing method provided according to an embodiment of the present disclosure.

Fig. 3A is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure.

Fig. 3B is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure.

Fig. 4A is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure.

Fig. 4B is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure.

Fig. 5A is an interactive schematic diagram of a communication processing method according to an embodiment of the disclosure.

Fig. 6 is a schematic diagram of a communication processing method shown according to an embodiment of the present disclosure.

Fig. 7A is a schematic structural diagram of a first network element according to an embodiment of the present disclosure.

Fig. 7B is a schematic structural diagram of a first network element according to an embodiment of the present disclosure.

Fig. 8A is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure.

Fig. 8B is a schematic structural diagram of a chip 8200 according to an embodiment of the disclosure.

Detailed Description

The embodiment of the disclosure provides a communication processing method, a first network element, a second network element and core network equipment.

In a first aspect, an embodiment of the present disclosure proposes a communication processing method, which is applied to a second network element, including: receiving first information sent by a first network element, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy; determining that the second network element and the third network element are the same network element according to the first information, and realizing the function required by the third network element by the second network element; and sending second information to the first network element, wherein the second information is used for indicating the terminal strategy.

In the above embodiment, the second information is provided to the third network element through the first information, so that the communication resource waste is avoided, and the communication efficiency is improved. Further, the existing first information is utilized to indicate the same mode of the second network element and the third network element, so that the utilization rate of the information is improved, and meanwhile, the compatibility of the scheme is also improved.

With reference to some embodiments of the first aspect, in some embodiments, the first information is used to indicate at least one of: in PDU conversation of all data network names DNN and/or single network slice selection support information S-NSSAI supported by the terminal, the second network element is the same as the third network element; in PDU conversation of specific S-NSSAI supported by terminal, the second network element is the same as the third network element; in the PDU session of the specific DNN and S-NSSAI supported by the terminal, the second network element is the same as the third network element.

With reference to some embodiments of the first aspect, in some embodiments, further comprising: and receiving third information sent by the first network element so as to request the second information through the third network element.

With reference to some embodiments of the first aspect, in some embodiments, the functions required by the second network element to implement the third network element include: acquiring parameters corresponding to the second information; generating the second information according to the parameters corresponding to the second information; and sending the second information to the first network element.

With reference to some embodiments of the first aspect, in some embodiments, the second information includes a policy control request trigger PCRT, and the second network element implements functions required by the third network element includes: acquiring PCRT parameters corresponding to a terminal strategy; generating PCRT according to the PCRT parameters; and sending the PCRT to the first network element.

With reference to some embodiments of the first aspect, in some embodiments, the second information is carried by the PCRT.

In combination with some embodiments of the first aspect, in some embodiments, the third information is for indicating that a request for transmission of the user routing policy urs in the evolved packet system EPS is required.

With reference to some embodiments of the first aspect, in some embodiments, a method is applied in a scenario in which a urs is provided in the EPS.

With reference to some embodiments of the first aspect, in some embodiments, the second information is the urs p.

With reference to some embodiments of the first aspect, in some embodiments, the scenes in which the urs are provided in EPS include any one of the following scenes: establishing a packet data network, PDN, connection in the EPS to provide a urs p in the EPS; in the course of the 5G system movement to the EPS, to provide the urs in the EPS.

With reference to some embodiments of the first aspect, in some embodiments, the first network element is a network element formed by combining a session management function SMF and a packet data network gateway PGW-C.

With reference to some embodiments of the first aspect, in some embodiments, the second network element and the third network element are both policy control function network elements PCFs.

In a second aspect, an embodiment of the present disclosure proposes a communication processing method, applied to a first network element, including: acquiring fourth information, and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; sending first information to a second network element, wherein the second network element and a third network element are both used for policy control; and receiving second information sent by a second network element, wherein the second information is used for indicating the terminal strategy.

With reference to some embodiments of the second aspect, in some embodiments, the fourth information is obtained, including at least one of: receiving fourth information sent by a fourth network element; and acquiring preconfigured fourth information.

With reference to some embodiments of the second aspect, in some embodiments, the fourth information is obtained, including at least one of: receiving fourth information sent by a fourth network element; and acquiring preconfigured fourth information.

With reference to some embodiments of the second aspect, in some embodiments, fourth information is included in the user subscription data, the first information being used to indicate at least one of: in all PDU sessions supported by the terminal, the second network element is the same as the third network element; in PDU conversation of specific S-NSSAI supported by terminal, the second network element is the same as the third network element; in the PDU session of the specific DNN and S-NSSAI supported by the terminal, the second network element is the same as the third network element.

With reference to some embodiments of the second aspect, in some embodiments, further comprising: and sending third information to the second network element, wherein the third information is used for indicating the second network element to request the second information through the third network element. With reference to some embodiments of the second aspect, in some embodiments, the policy control request trigger PCRT is included in the second information.

With reference to some embodiments of the second aspect, in some embodiments, receiving the second information sent by the second network element includes: and receiving PCRT sent by the second network element, wherein the second information is carried by the PCRT.

With reference to some embodiments of the second aspect, in some embodiments, the third information is used to indicate that a request to transmit a urs in the EPS is required.

With reference to some embodiments of the second aspect, in some embodiments, the method is applied in a scenario in which a urs is provided in the EPS.

With reference to some embodiments of the second aspect, in some embodiments, the second information is the urs.

With reference to some embodiments of the second aspect, in some embodiments, the scenes in which the urs are provided in EPS include any one of the following scenes: establishing a packet data network, PDN, connection in the EPS to provide a urs p in the EPS; during the movement of the 5G system 5GS to the EPS to provide the urs in the EPS.

With reference to some embodiments of the second aspect, in some embodiments, the first network element is a network element formed by combining a session management function SMF and a packet data network gateway PGW-C.

With reference to some embodiments of the second aspect, in some embodiments, the second network element and the third network element are both policy control function network elements PCF, and the fourth network element is a unified data management function UMD network element or a unified data storage UDR network element.

In a third aspect, an embodiment of the present disclosure provides a communication processing method, including: the first network element acquires fourth information, and determines first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element; the first network element sends the first information to the second network element; the second network element determines that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element; and the second network element sends second information to the first network element, wherein the second information is used for indicating the terminal strategy.

In a fourth aspect, an embodiment of the present disclosure proposes a first network element, where the first network element includes at least one of a transceiver module and a processing module; wherein the first network element is configured to perform the optional implementation manners of the second aspect and the third aspect.

In a fifth aspect, an embodiment of the present disclosure proposes a second network element, where the second network element includes at least one of a transceiver module and a processing module; wherein the second network element is configured to perform the optional implementation manners of the first aspect and the third aspect.

In a sixth aspect, an embodiment of the present disclosure proposes a core network device, where the core network device includes at least one of a transceiver module and a processing module; wherein the core network device is configured to perform the optional implementation manner of the third aspect.

In a seventh aspect, an embodiment of the present disclosure proposes a first network element, including: one or more processors; wherein the first network element is configured to perform the optional implementation manners of the second aspect and the fifth aspect.

In an eighth aspect, an embodiment of the present disclosure proposes a second network element, including: one or more processors; wherein the second network element is configured to perform the optional implementation manners of the first aspect and the sixth aspect.

In a ninth aspect, an embodiment of the present disclosure proposes a core network device, including: one or more processors; wherein the core network device is configured to perform the optional implementation manner of the third aspect.

In a tenth aspect, embodiments of the present disclosure provide a communication system, including: core network equipment; wherein the core network device is configured to perform the method as described in the first aspect and optional implementation manners of the second and third aspects.

In an eleventh aspect, embodiments of the present disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform a method as described in the alternative implementations of the first, second, and third aspects.

In a twelfth aspect, embodiments of the present disclosure propose a program product which, when executed by a communication device, causes the communication device to perform the method as described in the alternative implementations of the first aspect and the second and third aspects.

In a thirteenth aspect, embodiments of the present disclosure propose a computer program which, when run on a computer, causes the computer to carry out the method as described in the alternative implementations of the first and second and third aspects.

In a fourteenth aspect, embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry configured to perform the method described in accordance with alternative implementations of the first, second and third aspects described above.

It will be appreciated that the above-mentioned terminal, access network device, first network element, second network element, core network device, communication system, storage medium, program product, computer program, chip or chip system are all configured to perform the methods set forth in the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

The embodiment of the disclosure provides a communication processing method, a first network element, a second network element and core network equipment. In some embodiments, terms of a communication processing method and an information processing method, a communication method, and the like may be replaced with each other, terms of a device and an information processing device, a communication device, and the like may be replaced with each other, and terms of an information processing system, a communication system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are expressed in the singular, such as "a," "an," "the," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.

In some embodiments, "A, B at least one of", "a and/or B", "in one case a, in another case B", "in response to one case a", "in response to another case B", and the like, may include the following technical solutions according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to that described above when there are more branches such as A, B, C.

In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to that described above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, the apparatuses and devices may be interpreted as entities, or may be interpreted as virtual, and the names thereof are not limited to those described in the embodiments, and may also be interpreted as "device (apparatus)", "device)", "circuit", "network element", "node", "function", "unit", "component (section)", "system", "network", "chip system", "entity", "body", and the like in some cases.

In some embodiments, a "network" may be interpreted as an apparatus comprised in the network, e.g. an access network device, a core network device, etc.

In some embodiments, the "access network device (access network device, AN device)" may also be referred to as a "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be referred to as a "node)", "access point (access point)", "transmission point (transmission point, TP)", "Reception Point (RP)", "transmission and/or reception point (transmission/reception point), TRP)", "panel", "antenna array", "cell", "macrocell", "microcell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", bandwidth part (BWP), etc.

In some embodiments, a "terminal" or "terminal device" may be referred to as a "user equipment" (UE), a "user terminal" (MS), a "mobile station" (MT), a subscriber station (subscriber station), a mobile unit (mobile unit), a subscriber unit (subscore unit), a wireless unit (wireless unit), a remote unit (remote unit), a mobile device (mobile device), a wireless device (wireless device), a wireless communication device (wireless communication device), a remote device (remote device), a mobile subscriber station (mobile subscriber station), an access terminal (access terminal), a mobile terminal (mobile terminal), a wireless terminal (wireless terminal), a remote terminal (mobile terminal), a handheld device (handset), a user agent (user), a mobile client (client), a client, etc.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

Fig. 1 is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure. As shown in fig. 1, the communication system 100 includes a terminal (terminal) 101, an access network device 102, and a core network device (core network device) 103.

In some embodiments, the terminal 101 includes at least one of a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a wireless transceiver enabled computer, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), for example, but is not limited thereto.

In some embodiments, the access network device 102 is, for example, a node or device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device 103 may be one device including the first network element 1031, the second network element 1032, and the like, or may be a plurality of devices or device groups including all or part of the first network element 1031, the second network element 1032, and the like, respectively. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC).

In some embodiments, the first network element 1031 is used for session management, the name is not limited to this

In some embodiments, the first network element 1031 is, for example, a session management function (Session Management Function, SMF).

In some embodiments, the first network element 1031 is, for example, a Packet Data network element-C (Packet Data NetworkGateWay, PGW-C).

In some embodiments, the first network element 1031 is, for example, a network element obtained by combining SMF with PGW-C, i.e., smf+pgw-C.

In some embodiments, the second network element 1032 is, for example, a session policy related policy control function (Policy Control Function, PCF).

In some embodiments, the second network element 1032 is used for a "control policy", the name not being limited thereto.

In some embodiments, the third network element 1033 is, for example, a terminal policy related PCF.

In some embodiments, the third network element 1033 is used for a "control policy," the name not being limited thereto.

In some embodiments, the first network element 1031 may be independent from the core network device 103.

In some embodiments, the first network element 1031 may be part of the core network device 103.

In some embodiments, the fourth network element 1034 is used to "store data," and the name is not limited thereto.

In some embodiments, the fourth network element 1034 is, for example, a unified data management function (Unified Data Management, UDM), a unified data store (Unified Data Repository, UDR), or a udm+udr.

In some embodiments, the first network element is directly connected to the access network.

In some embodiments, the first network element is not directly connected to the access network.

In some embodiments, the first network element is not directly connected to the access network in the manner of RAN-mobility management entity (Mobility Management Entity, MME) -PGW-c (EPS), or RAN-AMF-SMF (5G). It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1 are examples, and the communication system may include all or part of the bodies in fig. 1, or may include other bodies than fig. 1, and the number and form of the respective bodies may be arbitrary, and the respective bodies may be physical or virtual, and the connection relationship between the respective bodies is examples, and the respective bodies may not be connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

The embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), upper 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air (New Radio, NR), future wireless access (Future Radio Access, FRA), new wireless access technology (New-Radio Access Technology, RAT), new wireless (New Radio, NR), new wireless access (New Radio access, NX), future generation wireless access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (registered trademark), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra WideBand (Ultra-wide bandwidth, UWB), bluetooth (Bluetooth) mobile communication network (Public Land Mobile Network, PLMN, device-D-Device, device-M, device-M, internet of things system, internet of things (internet of things), machine-2, device-M, device-M, internet of things (internet of things), system (internet of things), internet of things 2, device (internet of things), machine (internet of things), etc. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

In one possible embodiment, in the session management procedure defined in 5G, the PCF that supports DNN and S-nsai requested by the AMF of the UE is selected to be the same PCF as PDU session of DNN and S-nsai requested by the SMF.

In one embodiment provided herein, when the PCF for PDU session management receives a UE policy container from the PCF for UE policy management (i.e., UE-PCF), it forwards the UE policy container to smf+pgw through npcf_smplicycorol_updatenotify. The PCF for PDU session management obtains the PCRT of the UE policy using the PCF for UE policy management and subscribes to the appropriate PCRT in the EPC with smf+pgw-C.

In one embodiment provided herein, the PCF for PDU session management may establish UE policy association with the PCF for UE policy management in the following two scenarios, and when the urs are supported in EPS:

in the EPS initial attach procedure of the UE carrying default packet data network (Packet Data Network, PDN) connection establishment, or in the procedure where the UE first requests PDN connection establishment in the EPS, when a first UE policy container is received from the UE for SM policy association and the UE policy container is forwarded to the PCF for UE policy management by the npcf_ue policy control_create request.

During 5GS to EPS supported mobility through N26, when smf+pgw-C informs the PCF for PDU session management through npcf_smplicycontrol_update to inform it that the associated radio access type (Radio Access Type, RAT) has changed.

In one embodiment, the PCF of the UE policy management generates a URSP and sends the URSP to the PCF for PDU session management via the UE policy container of the Npcf_UE policy control_UpdateNotification request. When an event meeting the trigger condition occurs in the PCF for PDU session management, the PCF for UE policy management triggers reevaluation of URSP and determines that the UE needs to update the URSP. Alternatively, the UE-PCF may be the same PCF as the PCF used for PDU session management, or may be a PCF independent of the SM-PCF.

In one possible embodiment, the SM-PCF and PCF (PCF for the PDU session) for the PDU session may be identical.

Fig. 1a is an interactive schematic diagram of a communication processing method according to an embodiment of the present disclosure, and as shown in fig. 1a, an SM-PCF is selected in a PDU session establishment procedure, and the SM-PCF is used for policy management for the PDU session. And support selection of the same PCF by the access and mobility management function (Access and Mobility Management Function, AMF) of the UE for the requested data network name (Data Network Name, DNN) and single network slice selection support information (Single Network Slice Selection Assistance Information, S-NSSAI).

During the interaction of AMF and SMF: the sent nsmf_pduse_createsmcontext request contains the PCF ID and the same PCF selection indication. The same PCF selection indication is used to indicate that the same PCF is selected as both the SM-PCF and the UE-PCF.

In the non-roaming case, for a PDU session with a request type of "initial request", the AMF will check if PCF selection assistance information (PCF Selection Assistance info) from the UDM indicates that the requested DNN and S-NSSAI need the same PCF. If the same PCF is needed, the AMF Nsmf_PDUSion_CreateSContext request comprises the same PCF selection indication and the PCF ID selected by the AMF, and the PCF corresponding to the PCF ID is H-PCF.

If no PCF-selection assistance information is received from the UDM, the AMF may add the PCF ID to the nsmf_pduse_createsmcontext request according to the operator policy. This PCF ID is used to identify the H-PCF in the non-roaming case and the V-PCF in the home leg roaming.

The PCF selection assistance information is defined as a part of the AM subscription data, i.e. the AM subscription data for the AMF. Optionally, the PCF in the AM subscription data selects a combined list of DNN and S-nsai included in the assistance information to indicate that the same PCF needs to be selected for AM policy control and SM policy control.

In one possible embodiment, in the interactive procedure of providing the urs in the EPS, the UE policy association procedure with the UE-PCF defined in 5G may be applied, mainly with the following differences:

providing consistent user routing policies (UE Route Selection Policy, urs) for UEs in 5G systems (5 gs) and evolved packet systems (Evolved Packet System, EPS) is the content of research in the 5G UE policy Enhancement (5GUE Policy,eUEPO) project.

To support provision of urs in EPS, smf+pgw-C receives a urs provisioning support indication and an extended protocol configuration option (extendedProtocol Configuration Option, ePCO) support indication in EPS protocol configuration options (Protocol Configuration Option, PCO) from UE, if smf+pgw-C also supports urs provisioning and ePCO, it selects PCF that also supports urs provisioning in EPS to establish session management (Session Management, SM) policy association according to the urs provisioning support indication in received EPS PCO and local configuration.

In one embodiment provided herein, when smf+pgw-C receives UE policy container ePCO in a bearer resource command in a bearer resource modification procedure requested by UE, it transparently forwards UE policy container to PCF (i.e. SM-PCF) providing session related policy through npcf_smplicycontrol_update request for Packet Data Unit (PDU) session management PCF (the PCF for the PDU), including policy control request trigger (policy control request trigger, PCRT) indicating that "UE policy container received" is satisfied.

In the procedure of providing the urs in EPS, it is the PCF for PDU session management that interacts with the UE-PCF, not the AMF.

The transfer of the UE policy container from the PCF for UE policy management to the PCF for PDU session management is done through the npcf_ue policy control service instead of through the UE configuration update procedure.

In one possible embodiment, the PCF for PDU session management determines the PCF for UE policy management by querying a binding support function (Binding Support Function, BSF) network element and using the SUPI received in the npcf_smplicycontrol_create request. If the result is not obtained from the BSF, the PCF for PDU session management will select the PCF for the UE by querying the network element storage function (Network Function Repository Function, NRF).

In one possible embodiment, during a 5GS to EPS move, the PCF for PDU session management decides whether to establish a UE policy association for the PCF for UE policy management in order to provide a urs in the EPS. In EPS to 5GS mobility procedures, if the PCF for PDU session management establishes an association with the PCF for UE policy management during 5GS to EPS mobility, the PCF for PDU session management will terminate the UE policy association with the PCF for UE policy management.

In one possible embodiment, for Local Break Out (LBO) roaming, the V-PCF for PDU session management cannot access UDR and cannot determine whether the UE supports provision of urs rules in EPC. In this case, the V-PCF for PDU session management determines whether to establish a UE policy association with the V-PCF for UE policy management according to the local configuration.

For non-roaming and local routing roaming, the PCF for PDU session management (H-PCF) discovers the PCF for UE policy management by querying the BSF using the SUPI of the UE.

To sum up, for providing a urs at the EPS, the PCF for PDU session management is discovered by smf+pgw-C and the PCF for UE policy management is discovered by the PCF for PDU session management.

The EPS provides support for two cases in the urs flow, the PCF for PDU session management is the same as the PCF for UE policy management, and the PCF for PDU session management is different from the PCF for UE policy management.

However, for the procedure of providing the urs in the EPS, how to discover the same PCF for PDU session management and the PCF for UE policy management has not been determined.

Fig. 2 is an interactive schematic diagram of a communication processing method according to an embodiment of the disclosure. As shown in fig. 2, an embodiment of the present disclosure relates to a communication processing method, including:

In step S2101, the fourth network element transmits fourth information.

In some embodiments, the first network element receives the fourth information.

In some embodiments, the fourth information is used to "indicate selection assistance information related to the third network element.

In some embodiments, the fourth information is selection assistance information.

In some embodiments, the first network element is a network element formed by combining a session management function SMF and a packet data network gateway PGW-C.

In some embodiments, the first network element is an SMF.

In some embodiments, the fourth network element is a UMD network element or a UDM and UDR network element.

In some embodiments, the selection assistance information selects assistance information for the PCF.

In some embodiments, the selection assistance information is used to assist in selecting a PCF, and the selected PCF is used as an SM-PCF for session management or a UE-PCF corresponding to a terminal.

In some embodiments, the fourth information is included in the user subscription data. The type of subscriber subscription data includes SM subscription data for SMF.

In some embodiments, the UE-level PCF selection assistance information is included in SM subscription data for the SMF.

In some embodiments, PCF selection assistance information of the S-nsai level, or of the DNN and S-nsai levels, is included in the PCF selection assistance information.

In some embodiments, PCF selection assistance information may indicate different levels, each indicating the same information used for PDU session management as the PCF corresponding to the terminal UE policy. The levels include a UE level, a S-NSSAI level, and a DNN/S-NSSAI level.

In some embodiments, the PCF selects assistance information at the UE level, which is applicable to all supported PDU sessions.

In some embodiments, the PCF selects assistance information to be at the S-nsai level, and the PCF selects assistance information to be applicable to PDU sessions supported in a particular S-nsai.

In some embodiments, the PCF selects assistance information to be DNN/S-NSSAI level, and the PCF selects assistance information to be applicable to PDU sessions supported in a particular DNN/S-NSSAI.

In some embodiments, the PCF selects assistance information to be DNN/S-NSSAI level, and the PCF selects assistance information to be applicable to PDU sessions supported in DNN/S-NSSAI by default.

In some embodiments, the fourth information is used to indicate at least one of: in PDU conversation of all data network names DNN and/or network slice fourth information S-NSSAI supported by the terminal, a second network element corresponding to a conversation management strategy is the same as a third network element corresponding to the terminal strategy; in PDU conversation of specific S-NSSAI supported by terminal, second network element corresponding to conversation management strategy is the same as third network element corresponding to terminal strategy; in PDU conversation of specific DNN/S-NSSAI supported by terminal, second network element corresponding to conversation management strategy is the same as third network element corresponding to terminal strategy.

In step S2102, the first network element determines first information.

In some embodiments, the first information is used for indicating that the second network element corresponding to the session management policy is the same as the third network element corresponding to the terminal policy.

In some embodiments, the first information is determined by the first network element from the received fourth information.

In some embodiments, the first information is determined by the first network element according to a preconfigured PCF selection policy, e.g., with configured fourth information.

In some embodiments, the first information is used to indicate that the second network element is the same as the third network element in all PDU sessions supported by the terminal.

In some embodiments, the first information is used to indicate that the second network element is the same as the third network element in a PDU session for all DNNs and S-nsais supported by the terminal.

In some embodiments, without supporting network slicing, all PDU sessions supported by a terminal refer to PDU sessions of all DNNs to which the terminal is able to connect.

In some embodiments, in the case of supporting network slicing, all PDU sessions supported by a terminal refer to PDU sessions of all DNNs and S-NSSAIs to which the terminal is capable of connecting.

In some embodiments, the first information is used to indicate that the second network element is the same as the third network element in all PDU sessions supported by the terminal.

In some embodiments, the first information is used to indicate that the second network element is the same as the third network element in a PDU session of a specific S-nsai supported by the terminal.

In some embodiments, the first information is used to indicate that the second network element is the same as the third network element in a PDU session of a particular DNN and S-nsai supported by the terminal.

In step S2103, the first network element sends the first information and the third information together to the second network element.

In some embodiments, the first network element sends the first information and the third information to the second network element, respectively.

In some embodiments, the first network element sends the first information to the second network element separately.

In some embodiments, the first network element sends the third information separately to the second network element.

In some embodiments, the second network element receives the first information and the third information sent by the first network element, respectively.

In some embodiments, the second network element is a network element corresponding to a session management policy.

In some embodiments, the second network element is a PCF network element.

In some embodiments, the second network element is an SM-PCF network element.

In some embodiments, the second network element is a network element corresponding to a PDU session.

In some embodiments, the SM-PCF and PDU session correspond to the same network element.

In some embodiments, the second network element receives the third information.

In some embodiments, the third information is used to instruct the second network element to request the third network element to provide the second information.

In some embodiments, the second network element confirms that the second network element is the same as the third network element according to the first information, and the second network element provides the second information to the first network element according to the third information.

In some embodiments, the second information is used to "indicate terminal policy".

In some embodiments, the second information is terminal-related policy information.

In some embodiments, the second information may further include policy information for session management in addition to policy information related to the terminal.

In some embodiments, the second information is used to provide a policy for wireless communication.

In step S2104, the second network element determines a third network element.

In some embodiments, the third network element is a network element corresponding to a terminal policy.

In some embodiments, the third network element is configured to control a policy corresponding to the terminal.

In some embodiments, the second network element determines the third network element from the first information.

In some embodiments, the second network element autonomously selects the third network element.

In some embodiments, the second network element confirms, according to the first information, that the second network element corresponding to the session management policy is the same as the third network element corresponding to the terminal policy, where the second network element is configured to execute the step of the third network element, so as to implement a function of the third network element.

In step S2105, the second network element obtains the policy related parameters.

In some embodiments, the policy related parameters include terminal policy related parameters.

In some embodiments, the policy-related parameters include session management policy-related parameters.

In some embodiments, the policy-related parameter is a PCRT parameter.

In some embodiments, the PCRT parameters are used to generate PCRT.

In some embodiments, the second network element obtains the PCRT parameter from locally stored data.

In some embodiments, the second network element sends a request to the other network element to obtain the PCRT parameters.

In some embodiments, the PCRT parameters include PCRT parameters corresponding to a terminal policy.

In some embodiments, the PCRT parameters further include PCRT parameters corresponding to a session management policy.

In some embodiments, the second information is policy information for "providing communication policies".

In some embodiments, the policy information is a urs p. The urs describe the routing policies applied and the terminal can select the appropriate routing path, e.g. the appropriate PDU session, for the application according to the urs rules.

In step S2106, the second network element generates second information.

In some embodiments, the second information is policy related information.

In some embodiments, the second network element generates policy related information according to the policy related parameters.

In some embodiments, the terminal policy information is generated according to parameters corresponding to the terminal policy. Optionally, the second information is terminal policy information.

In some embodiments, the policy-related information is generated according to parameters corresponding to the terminal policy and parameters corresponding to the session management policy. Optionally, the information sent by the second network element to the first network element includes terminal policy information and session management policy information, where the second information is the terminal policy information.

In some embodiments, the second network element obtains a parameter corresponding to the second information.

In some embodiments, the second network element generates the second information according to a parameter corresponding to the second information.

In some embodiments, the parameter corresponding to the second information is a policy-related parameter.

In some embodiments, the PCRT parameters include PCRT parameters corresponding to a terminal policy.

In some embodiments, the PCRT parameters further include PCRT parameters corresponding to a session management policy.

In some embodiments, PCRT is used to carry the second information.

In some embodiments, the second information is PCRT.

In some embodiments, the second information is a parameter or information contained in the PCRT.

In some embodiments, the PCRT is generated from PCRT parameters corresponding to the terminal policy. Optionally, the second information is a PCRT corresponding to the terminal policy.

In some embodiments, the PCRT is generated from a PCRT parameter corresponding to the terminal policy and a PCRT parameter corresponding to the session management policy. Optionally, the information sent by the second network element to the first network element includes a PCRT corresponding to a terminal policy and a PCRT corresponding to a session management policy, where the second information is the PCRT corresponding to the terminal policy.

In some embodiments, the second information is a urs p. The urs describe the routing policies applied and the terminal can select the appropriate routing path, e.g. the appropriate PDU session, for the application according to the urs rules.

In some embodiments, the second information is or includes a urs.

In some embodiments, the urs are used to indicate "applied routing policies", and the terminal may select an appropriate routing path for the application according to the urs rules, optionally including PDU sessions.

In step S2107, the second network element transmits the second information.

In some embodiments, the first network element receives the second information.

In some embodiments, the second information is carried by the PCRT.

In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "instruction", "command", "channel", "parameter", "field", "symbol", "codebook", "code word", "code point", "bit", "data", "program", "chip", and the like may be replaced with each other.

In some embodiments, terms such as "uplink," "physical uplink," and the like may be interchanged, terms such as "downlink," "physical downlink," and the like may be interchanged, terms such as "side," "side link," "side communication," "side link," "direct link," and the like may be interchanged.

In some embodiments, terms such as "radio," "wireless," "radio access network," "RAN," and "RAN-based," may be used interchangeably.

In some embodiments, terms such as "search space", "search space set", "search space configuration (search space configuration)", "search space set configuration (search space set configuration)", "control resource set (control resource set, CORESET)", "CORESET configuration", and the like may be interchanged.

In some embodiments, "acquire," "obtain," "receive," "transmit," "bi-directional transmit," "send and/or receive" may be used interchangeably and may be interpreted as receiving from other principals, acquiring from protocols, acquiring from higher layers, processing itself, autonomous implementation, etc.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "bi-directional," "send and/or receive," and the like may be used interchangeably.

In some embodiments, terms such as "specific (specific)", "predetermined", "preset", "set", "indicated", "certain", "arbitrary", "first", and the like may be replaced with each other, and "specific a", "predetermined a", "preset a", "set a", "indicated a", "certain a", "arbitrary a", "first a" may be interpreted as a predetermined in a protocol or the like, may be interpreted as a obtained by setting, configuring, or indicating, or the like, may be interpreted as specific a, certain a, arbitrary a, or first a, or the like, but are not limited thereto.

The communication method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2108. For example, step S2101 may be implemented as a separate embodiment, step S2102 may be implemented as a separate embodiment, step 1+3 may be implemented as a separate embodiment, and step S2101+s2102+s2103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S2101, S2102 may be performed interchangeably or simultaneously.

In some embodiments, steps S2103 and S2105 are performed in combination, and then step S2104 and other steps are performed.

In some embodiments, steps S2103, S2104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, reference may be made to alternative implementations described before or after the description corresponding to fig. 2.

Fig. 3A is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure. As shown in fig. 3A, an embodiment of the present disclosure relates to a communication processing method (a second network element side), including:

in step S3101, the first information and the third information are received.

Alternative implementations of step S3101 may refer to alternative implementations of step S2103 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In some embodiments, the second network element receives the first information together with the third information by the first network element.

In some embodiments, the second network element receives the first information and the third information sent by the first network element, respectively.

In some embodiments, the second network element obtains first information specified by the protocol.

In some embodiments, the second network element processes to obtain the first information.

In some embodiments, step S3101 is omitted, and the second network element autonomously implements the function indicated by the first information, or the above-mentioned function is default or default.

Step S3102, determining that the second network element and the third network element are the same network element.

Alternative implementations of step S3102 may refer to alternative implementations of step S2104 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3103, policy-related parameters are acquired.

Alternative implementations of step S3103 may refer to alternative implementations of step S2105 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

Optionally, the second network element may further obtain a PCRT parameter corresponding to the session management policy.

Step S3104, generating second information according to the policy-related parameter.

Alternative implementations of step S3104 may refer to alternative implementations of step S2106 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

Optionally, the PCRT is generated based on policy-related parameters.

Optionally, the PCRT generated in this step is used to carry the second information.

Step S3105, the second information is transmitted.

Alternative implementations of step S3105 may refer to alternative implementations of step S2107 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

Optionally, the second network element sends a PCRT to the first network element, where the PCRT includes the second information.

The communication method according to the embodiment of the present disclosure may include at least one of step S3101 to step S3105. For example, step S3101 may be implemented as a separate embodiment, step S3102 may be implemented as a separate embodiment, step S3101+s3103 may be implemented as a separate embodiment, and step S3101+s3102+s3103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S3101, S3103 may be performed in exchange for one another or simultaneously.

In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 3B is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure. As shown in fig. 3B, an embodiment of the present disclosure relates to a communication processing method (a first network element side), including:

step S3201, the functions required by the third network element are implemented.

Alternative implementations of step S3201 may refer to step S2106, step S2107 of fig. 2, step S3104 of fig. 3A, alternative implementations of step S3105, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

In step S3202, second information is generated.

Alternative implementations of step S3202 may refer to step S2107 of fig. 2, alternative implementations of steps S3103 and S3104 of fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

The communication method according to the embodiment of the present disclosure may include at least one of step S3201 to step S3202. For example, step S3201 may be implemented as a separate embodiment, step S3202 may be implemented as a separate embodiment, and step s3201+s3202 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S3201, S3202 may be performed in exchange order or simultaneously.

In some embodiments, step S3201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 4A is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure. As shown in fig. 4A, an embodiment of the present disclosure relates to a communication processing method (a first network element side), including:

step S4101, fourth information sent by a fourth network element is received.

Alternative implementations of step S4101 may refer to alternative implementations of step S2101 of fig. 2, and other relevant parts in the embodiment related to fig. 2, which are not described herein.

In some embodiments, preconfigured fourth information is obtained.

Step S4102, determining the first information according to the fourth information.

Alternative implementations of step S4102 may refer to alternative implementations of step S2102 in fig. 2, and other relevant parts in the embodiment related to fig. 2, which are not described herein.

Step S4103, the first information and the third information are sent together to the second network element.

Alternative implementations of step S4103 may refer to alternative implementations of step S2103 of fig. 2, and other relevant parts in the embodiment related to fig. 2, which are not described here again.

In some embodiments, the first information and the third information are sent to the second network element, respectively.

In step S4104, second information is received.

Alternative implementations of step S4104 may refer to alternative implementations of step S2107 of fig. 2, and other relevant parts in the embodiment related to fig. 2, and will not be described here again.

The communication method according to the embodiment of the present disclosure may include at least one of step S4101 to step S4105. For example, step S4101 may be implemented as a separate embodiment, step S4102 may be implemented as a separate embodiment, step S4101+s4103 may be implemented as a separate embodiment, and step S4101+s4102+s4103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S4101, S4102 can be performed in exchange order or simultaneously.

In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 4B is a flow diagram illustrating a communication processing method according to an embodiment of the present disclosure. As shown in fig. 4B, an embodiment of the present disclosure relates to a communication processing method (a first network element side), including:

in step S4201, fourth information is determined.

Alternative implementations of step S4201 may refer to alternative implementations of step S2101 of fig. 2, alternative implementations of step S4101 of fig. 4A, and other relevant parts of the embodiments related to fig. 2 and 4A, which are not described here.

In step S4202, the second information is determined.

Alternative implementations of step S4202 may refer to alternative implementations of step S2107 of fig. 2, alternative implementations of step S4104 of fig. 4A, and other relevant parts of the embodiments related to fig. 2 and 4A, which are not described here.

The communication method according to the embodiment of the present disclosure may include at least one of step S4201 to step S4202. For example, step S4201 may be implemented as a separate embodiment, step S4202 may be implemented as a separate embodiment, and step S4201+s4202 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S4201, S4202 may be performed in exchange order or simultaneously.

In some embodiments, step S4201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 5A is an interactive schematic diagram of a communication processing method according to an embodiment of the disclosure. As shown in fig. 5A, an embodiment of the present disclosure relates to a communication processing method, including:

in step S5101, the first network element obtains fourth information.

Alternative implementations of step S5101 may refer to step S2101 of fig. 2, alternative implementations of step S4101 of fig. 4, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

In step S5102, the first network element determines first information.

Alternative implementations of step S5102 may refer to step S2102 of fig. 2, alternative implementations of step S4102 of fig. 4, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

In step S5103, the first network element sends the first information and the third information together to the second network element.

Alternative implementations of step S5103 may refer to step S2103 of fig. 2, alternative implementations of step S4103 of fig. 4, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

In some embodiments, the first network element sends the first information and the third information to the second network element, respectively

In step S5104, the second network element obtains second information.

Alternative implementations of step S5104 may refer to steps S2105 and S2106 of fig. 2, steps S3104, S3105 and S3106 of fig. 3, and other relevant parts in the embodiments related to fig. 2 and 3, which are not described herein.

In step S5105, the first network element receives the second information sent by the second network element.

Alternative implementations of step S5105 may refer to step S2107 of fig. 2, alternative implementations of step S4106 of fig. 4, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

Fig. 6 is a schematic diagram of a communication processing method shown according to an embodiment of the present disclosure. As shown in fig. 6, an embodiment of the present disclosure relates to a communication processing method, including:

in step S6101, UDM or UDR transmits PCF selection assistance information to SMF+PGW-C.

Optionally, PCF selection assistance information is included in the user subscription data, and the type of user subscription data includes SM subscription data for SMF.

In some embodiments, the UE-level PCF selection assistance information is included in SM subscription data for the SMF.

In some embodiments, the PCF selection assistance information of the S-nsai level, or the PCFs selection assistance information of the DNN and S-nsai levels, is included in the SM subscription data for the SMF. Optionally, multiple levels of PCFs are included, each for indicating the same information of the PCF for the PDU session as the PCF for the UE. The levels include a UE level, a S-NSSAI level, and a DNN/S-NSSAI level.

In some embodiments, the PCF selects assistance information at the UE level, which may be applied to all supported PDU sessions for all supported DNN/S-NSSAIs.

In some embodiments, the PCF selects assistance information to be at the S-nsai level, and the PCF selects assistance information to be applicable to PDU sessions supported in a particular S-nsai.

In some embodiments, the PCF selects assistance information to be DNN/S-NSSAI level, and the PCF selects assistance information to be applicable to PDU sessions supported in a particular DNN/S-NSSAI.

In some embodiments, the PCF selects assistance information to be DNN/S-NSSAI level, and the PCF selects assistance information to be applicable to PDU sessions supported in DNN/S-NSSAI by default.

In some embodiments, the selection assistance information is used to indicate at least one of: in PDU conversation of all data network name DNN and/or network slice selection auxiliary information S-NSSAI supported by the terminal, SM-PCF corresponding to the conversation management strategy is the same as UE-PCF corresponding to the terminal strategy; in PDU conversation of specific S-NSSAI supported by terminal, SM-PCF corresponding to conversation management strategy is the same as UE-PCF corresponding to terminal strategy; in PDU session of specific DNN/S-NSSAI supported by terminal, SM-PCF corresponding to session management strategy is the same as UE-PCF corresponding to terminal strategy.

In some embodiments, smf+pgw-C is the first network element, UDM or UDR is the fourth network element, and the auxiliary information is the fourth information.

In step S6102, SMF+PGW-C determines first information according to PCF selection auxiliary information.

Optionally, the first information is used for indicating that the SM-PCF corresponding to the session management policy is the same as the UE-PCF corresponding to the terminal policy "

In step S6103, SMF+PGW-C sends the first information and the third information together to the SM-PCF.

Optionally, the third information is used to instruct the SM-PCF to request the UE-PCF to provide the second information.

In some embodiments, the first information and the third information may be sent together by one message to the SM-PCF or sent separately by different messages to the SM-PCF.

In some embodiments, the second information is terminal policy related information.

In some embodiments, the second information is used to provide a policy for wireless communication.

Optionally, the third information is used to indicate that a request for transmission of the user routing policy urs p in the evolved packet system EPS is required.

In step S6104, the SM-PCF determines that the SM-PCF and the UE-PCF are the same network element according to the first information.

Optionally, this step is applied in a scenario where a urs is provided in EPS.

In some embodiments, in a scenario where the urs are provided in the EPS, to support the provision of the urs in the EPS, the smf+pgw-C receives from the UE an EPS PCO including a urs provision support indication, and an ePCO support indication, and if the smf+pgw-C also supports a send urs configuration in the EPS and ePCO, it also selects a PCF that supports the delivery of urs configuration in the EPS to establish SM policy association based on the received EPS PCO and urs provision support indication in the local configuration. In some embodiments, in the scenario where a urs is provided in EPS, when smf+pgw-C receives UE policy container ePCO in a bearer resource command during a bearer resource modification procedure requested by UE, it transparently forwards the UE policy container to PCF for PDU session management via an npcf_smplicycontrol_update request, including indicating that "UE policy container has received" PCRT is satisfied.

In some embodiments, if the third information is used to indicate that the SM-PCF received the UE policy container and the UE policy container is present in the third information, then the interaction intent of the SM-PCF is determined to be to establish the policy association.

In some embodiments, the SM-PCF is the aforementioned second network element and the UE-PCF is the aforementioned third network element.

In step S6105, the SM-PCF acquires PCRT parameters.

Optionally, the SM-PCF obtains PCRT parameters from locally stored data.

Optionally, the SM-PCF sends a request to other network elements to obtain the PCRT parameters.

In some embodiments, the PCRT parameters include PCRT parameters corresponding to a terminal policy. Optionally, the PCRT parameters further include PCRT parameters corresponding to the session management policy.

The PCRT parameters corresponding to the terminal policy are parameters that must be acquired, and if there is only the PCRT parameters corresponding to the session management policy but there is no PCRT parameters corresponding to the terminal policy, the corresponding PCRT cannot be generated according to the PCRT parameters.

Optionally, the scenario of providing the urs in the EPS includes: in the EPS initial attach procedure of the UE carrying default packet data network (Packet Data Network, PDN) connection establishment, or in the procedure where the UE first requests PDN connection establishment in EPS, when a first UE policy container is received from the UE for SM policy association and the UE policy container is forwarded to the PCF for UE policy management through the first information request.

Optionally, the scenario of providing the urs in the EPS further includes: during movement of 5GS to EPS and N26, when SMF+PGW-C notifies PCF for PDU session management via npcf_SMPolicyControl_update, it will be notified that its associated RAT has changed.

In some embodiments, a packet data network, PDN, connection is established in the EPS to determine a policy association for providing a urs rule to the terminal by the SM-PCF checking a UE policy container received from the SM-PCF in the first information in the context of providing urs in the EPS.

Optionally, the PCRT parameter is a parameter corresponding to the second information, and PCRT is the second information.

In step S6106, the SM-PCF generates PCRT according to the PCRT parameters.

Optionally, under the condition that the SM-PCF and the UE-PCF are the same, the SM-PCF acquires PCRT parameters corresponding to the terminal strategy

Optionally, in the case where the SM-PCF and the UE-PCF are the same, the SM-PCF obtains the PCRT parameters corresponding to the session management policy.

In some embodiments, PCRT is used to carry the second information.

In some embodiments, the second information is PCRT.

In some embodiments, the second information is a parameter or information contained in the PCRT.

In some embodiments, the second information is or includes a urs.

In some embodiments, the urs are used to indicate "applied routing policies", and the terminal may select an appropriate routing path for the application according to the urs rules, optionally including PDU sessions.

In step S6107, the SM-PCF sends PCRT to SMF+PGW-C.

In some embodiments, the SM-PCF receives the PCRT.

In some embodiments, the second information is carried by the PCRT.

In some embodiments, the SM-PCF sends a Npcf_SMPolicyControl_Updateresponse to SMF+PGW-C.

In some embodiments, the aforementioned second information, terminal policy related information, terminal policy information, terminal related policy information, and the like.

The communication method according to the embodiment of the present disclosure may include at least one of step S6101 to step S6107. For example, step S6101 may be implemented as a separate embodiment, step S6102 may be implemented as a separate embodiment, step S6101+s6103 may be implemented as a separate embodiment, and step S6101+s6102+s6103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, steps S6104, S6105 may be performed in exchange for one another or simultaneously.

In some embodiments, steps S6106, S6107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.

The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is also proposed, which includes a unit or module configured to implement steps performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, hardware circuits designed for artificial intelligence may be used, which may be understood as ASICs, such as neural network processing units (Neural Network Processing Unit, NPU), tensor processing units (Tensor Processing Unit, TPU), deep learning processing units (Deep learning Processing Unit, DPU), etc.

Fig. 7A is a schematic structural diagram of a first network element according to an embodiment of the present disclosure. As shown in fig. 7A, the first network element 7100 may include: at least one of a transceiver module 7101, a processing module 7102, and the like. In some embodiments, the processing module 7102 is configured to obtain fourth information, and determine first information according to the fourth information, where the first information is used to indicate that a second network element corresponding to a session management policy is the same as a third network element corresponding to a terminal policy; a transceiver module 7101, configured to send the first information to the second network element, where the second network element and the third network element are both used for policy control; and receiving second information sent by the second network element, wherein the second information is used for indicating a terminal strategy. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., step S2101, step S2103, step S2107, but not limited thereto) performed by the first network element in any of the above methods, which is not described herein. Optionally, the processing module is configured to perform at least one of the other steps (e.g., step S2102, step S2104, step S2105, step S2106, but not limited thereto) performed by the first network element in any of the above methods, which is not described herein.

Fig. 7B is a schematic structural diagram of a second network element according to an embodiment of the present disclosure. As shown in fig. 7B, the second network element 7200 may include: at least one of the transceiver module 7201, the processing module 7202, and the like. In some embodiments, the transceiver module 7201 is configured to receive first information sent by a first network element, where the first information is used to indicate that a second network element corresponding to a session management policy is the same as a third network element corresponding to a terminal policy; a processing module 7202, configured to determine that the second network element and the third network element are the same network element according to the first information, and implement, by the second network element, a function required by the third network element; the transceiver module 7201 is further configured to send second information to the first network element, where the second information is used to indicate a terminal policy. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., step S2101, step S2103, step S2107, but not limited thereto) performed by the second network element in any of the above methods, which is not described herein. Optionally, the processing module is configured to perform at least one of the other steps (e.g., step S2102, step S2104, step S2105, step S2106, but not limited thereto) performed by the second network element in any of the above methods, which is not described herein.

In some embodiments, the transceiver module may include a transmitting module and/or a receiving module, which may be separate or integrated. Alternatively, the transceiver module may be interchangeable with a transceiver.

In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the plurality of sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Alternatively, the processing module may be interchanged with the processor.

Fig. 8A is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

As shown in fig. 8A, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. Optionally, the communication device 8100 is configured to perform any of the above methods. Optionally, the one or more processors 8101 are configured to invoke instructions to cause the communication device 8100 to perform any of the above methods.

In some embodiments, communication device 8100 also includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps (e.g., but not limited to, step S2101, step S2103, step S2107) such as transmission and/or reception in the above-described method, and the processor 8101 performs at least one of the other steps (e.g., but not limited to, step S2102, step S2104, step S2105, step S2106). In alternative embodiments, the transceiver may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, interface, etc. may be replaced with each other, terms such as transmitter, transmitter unit, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, communication device 8100 also includes one or more memories 8103 for storing data. Alternatively, all or part of memory 8103 may be external to communication device 8100. In alternative embodiments, communication device 8100 may include one or more interface circuits 8104. Optionally, an interface circuit 8104 is coupled to the memory 8102, the interface circuit 8104 being operable to receive data from the memory 8102 or other device, and being operable to transmit data to the memory 8102 or other device. For example, the interface circuit 8104 may read data stored in the memory 8102 and transmit the data to the processor 8101.

The communication device 8100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by fig. 8A. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 8B is a schematic structural diagram of a chip 8200 according to an embodiment of the disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8B, but is not limited thereto.

The chip 8200 includes one or more processors 8201. The chip 8200 is used to perform any of the above methods.

In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Alternatively, the terms interface circuit, interface, transceiver pin, etc. may be interchanged. In some embodiments, the chip 8200 further comprises one or more memories 8203 for storing data. Alternatively, all or part of the memory 8203 may be external to the chip 8200. Optionally, an interface circuit 8202 is coupled to the memory 8203, the interface circuit 8202 may be used to receive data from the memory 8203 or other device, and the interface circuit 8202 may be used to transmit data to the memory 8203 or other device. For example, the interface circuit 8202 may read data stored in the memory 8203 and send the data to the processor 8201.

In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., but not limited to, step S2101, step S2103, step S2107) of the above-described methods of sending and/or receiving. The interface circuit 8202 performs the communication steps such as transmission and/or reception in the above-described method, for example, by: the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, processor 8201 performs at least one of the other steps (e.g., step S2102, step S2104, step S2105, step S2106, but is not limited thereto).

The modules and/or devices described in the embodiments of the virtual device, the physical device, the chip, etc. may be arbitrarily combined or separated according to circumstances. Alternatively, some or all of the steps may be performed cooperatively by a plurality of modules and/or devices, without limitation.

The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also proposes a program product which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Claims (33)

1. A method of communication processing, applied to a second network element, the method comprising:

receiving first information sent by a first network element, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy;

determining that the second network element and the third network element are the same network element according to the first information, and realizing the function required by the third network element by the second network element;

and sending second information to the first network element, wherein the second information is used for indicating a terminal strategy.

2. The method of claim 1, wherein the first information is used to indicate at least one of:

in PDU conversation supported by the terminal, the second network element is the same as the third network element;

in PDU conversation of specific S-NSSAI supported by terminal, the second network element is the same as the third network element;

in the PDU session of the specific DNN and S-NSSAI supported by the terminal, the second network element is the same as the third network element.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

and receiving third information sent by the first network element so as to request the second information through the third network element.

4. A method according to any of claims 1-3, wherein the second network element implementing the required functionality of the third network element comprises:

acquiring parameters corresponding to the second information;

generating the second information according to the parameters corresponding to the second information;

and sending the second information to the first network element.

5. The method according to any of claims 1-4, characterized in that the second information comprises a policy control request trigger PCRT,

the second network element performs the functions required by the third network element including:

acquiring PCRT parameters corresponding to a terminal strategy;

generating PCRT according to the PCRT parameters;

and sending the PCRT to the first network element.

6. The method according to any of claims 4-5, wherein the second information is carried by the PCRT.

7. The method according to any of claims 4-6, characterized in that the third information is used to indicate that a request for transmission of a user routing policy urs p in an evolved packet system EPS is required.

8. The method according to any of claims 1-7, characterized in that the method is applied in a scenario where a urs is provided in the EPS.

9. The method of claim 8, wherein the second information is the urs p.

10. The method of claim 9, wherein the scenes in the EPS that provide the urs include any of the following:

establishing a packet data network, PDN, connection in the EPS to provide a urs p in the EPS;

in the course of the 5G system movement to the EPS, to provide the urs in the EPS.

11. A method according to any of claims 1-10, characterized in that the first network element is a network element formed by a combination of a session management function SMF and a packet data network gateway PGW-C.

12. The method according to any of claims 1-11, wherein the second network element and the third network element are both policy control function network elements, PCFs.

13. A method of communication processing, applied to a first network element, the method comprising:

acquiring fourth information, and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element;

Sending the first information to the second network element, wherein the second network element and the third network element are both used for policy control;

and receiving second information sent by the second network element, wherein the second information is used for indicating a terminal strategy.

14. The method of claim 13, wherein the obtaining fourth information comprises at least one of:

receiving fourth information sent by a fourth network element;

and acquiring preconfigured fourth information.

15. The method according to claim 13 or 14, characterized in that the fourth information is contained in user subscription data, the fourth information being indicative of at least one of:

in all PDU sessions supported by the terminal, the second network element is the same as the third network element;

in PDU conversation of specific S-NSSAI supported by terminal, the second network element is the same as the third network element;

in the PDU session of the specific DNN and S-NSSAI supported by the terminal, the second network element is the same as the third network element.

16. The method according to any one of claims 13-15, further comprising:

and sending third information to the second network element, wherein the third information is used for indicating the second network element to request the second information through the third network element.

17. The method according to any of claims 13-16, wherein the second information comprises a policy control request trigger, PCRT.

18. The method according to any of claims 13-17, wherein the receiving the second information sent by the second network element comprises:

and receiving PCRT sent by the second network element, wherein the second information is carried by the PCRT.

19. The method according to any of claims 16-18, wherein the third information is used to indicate that a request for transmission of a urs p in EPS is required.

20. The method according to any of claims 13-19, characterized in that the method is applied in a scenario where a urs is provided in the EPS.

21. The method of claim 20, wherein the second information is the urs p.

22. The method of claim 21, wherein the scenes in the EPS that provide the urs include any of the following:

establishing a packet data network, PDN, connection in the EPS to provide a urs p in the EPS;

during the movement of the 5G system 5GS to the EPS to provide the urs in the EPS.

23. The method according to any of the claims 13-22, wherein the first network element is a network element formed by a combination of a session management function, SMF, and a packet data network gateway, PGW-C.

24. The method according to any of the claims 13-23, wherein the second network element and the third network element are both policy control function network elements, PCFs, and the fourth network element is a unified data management function, UMD, network element or a unified data storage, UDR, network element.

25. A method of communication processing, the method comprising:

the first network element acquires fourth information, and determines first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy;

the first network element sends the first information to the second network element;

the second network element determines that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element;

and the second network element sends second information to the first network element, wherein the second information is used for indicating the terminal strategy.

26. A second network element, the apparatus comprising:

the receiving and transmitting module is used for receiving first information sent by a first network element, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy;

The processing module is used for determining that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element;

the transceiver module is further configured to send second information to the first network element, where the second information is used to indicate a terminal policy.

27. A first network element, the apparatus comprising:

the processing module is used for acquiring fourth information and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element;

the receiving and transmitting module is used for sending the first information to the second network element, wherein the second network element and the third network element are both used for policy control; and receiving second information sent by the second network element, wherein the second information is used for indicating a terminal strategy.

28. A core network device, the apparatus comprising:

the receiving and transmitting module is used for acquiring fourth information and determining first information according to the fourth information, wherein the first information is used for indicating that a second network element corresponding to a session management strategy is the same as a third network element corresponding to a terminal strategy, and the fourth information is used for indicating selection auxiliary information related to the third network element;

The transceiver module is further configured to send the first information to the second network element;

the processing module is used for determining that the second network element and the third network element are the same network element according to the first information, and the second network element realizes the function required by the third network element;

the transceiver module is further configured to send second information to the first network element, where the second information is used to indicate a terminal policy.

29. A second network element, comprising:

one or more processors;

wherein the second network element is configured to perform the communication processing method of any of claims 1-12.

30. A second network element, comprising:

one or more processors;

wherein the second network element is configured to perform the communication processing method of any of claims 13-24.

31. A core network device, comprising:

one or more processors;

wherein the core network device is configured to perform the communication processing method of claim 25.

32. A communication system comprising a first network element configured to implement the communication processing method of any of claims 13-24 and a second network element configured to implement the communication processing method of any of claims 1-12.

33. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication processing method of any one of claims 1-12 or claims 12-24.