18 results about "Policy and charging rules function" patented technology

Methods for handling a data connection session in an Internet Protocol (IP) Multimedia Subsystem (IMS) network are provided. The method includes configuring a S50 interface between a Mobility Management Entity (MME) and a Policy and Charging Rules Function (PCRF) entity in the IMS network, and notifying a User Equipment (UE) about a Mobile Terminated (MT) Voice over LTE (VOLTE) call by using the MME. Another method includes configuring a SBI interface between an Access and Mobility Management Function (AMF) entity and the Policy Control Function (PCF) entity in the IMS network, and includes notifying a UE about a MT Voice over New Radio (VoNR) call by using the AMF entity.

A method for handling IMS registrations at a P-CSCF after PCRF database failure includes receiving a SIP REGISTER request message after a PCRF database failure and determining that the SIP REGISTER request message is for an existing user. The method further includes obtaining a list of user contacts having entries in a registration cache of the P-CSCF corresponding to an address of record in the SIP REGISTER request message, testing reachability of the user contacts in the list, and freeing resources of the P-CSCF for the user contacts determined to be unreachable.

The disclosure relates to a system (108) and a method (500) for connecting a user equipment (UE) (104) from a first network (106) to a second network (110). The method (500) receive (502), at the second network (110), a request associated with the UE (104) from the first network (106), and triggers (504), by a policy and charging rules function (PCRF) (306), a service request towards an online charging system (OCS) (310) based on the received request. The method (500) receives (506) a response message at the PCRF (306) based on the triggered service request and extracts (508) attributes associated with the response message. The method (500) evaluates (510) one or more policies based on determining that the extracted attributes meet at least one condition defined on a policy rule engine and connecting (512) the UE (104) to the second network (110) based on the one or more evaluated policies.

The present disclosure provides a system (108) and a method (400) for implementing a quota management in a policy and charging rules function (PCRF) / policy control function (PCF) (112) architecture for one or more network services provided by a network (106) The method (400) comprising receiving (402) a request from a user equipment (UE) (104). One or more parameters are extracted (404) from the received request and a type of quota applicable for the UE (104) is determined (406) by the PCF / PCRF (112), based on the one or more extracted parameters. The method (400) comprising identifying (408) if the type of determined quota meets at least one pre-defined criteria and performing (410) at least one operation associated with the network service based on the type of determined quota. The method (400) further comprising communicating (412) a response message to the UE (104) based on the at least one performed operation.

The invention discloses a 5GC network selection method. The method comprises the following steps: writing a preset QCI in a preset storage area of a 4G terminal module; sending an initial network access request including a preset QCI to the connection management platform through the 4G terminal module; the policy and charging rule function unit is used for identifying a preset QCI through the connection management platform, triggering level configuration of network service based on the initial network access request, sending a QCI change request used for changing QCI setting of the 4G terminal module, and routing the QCI change request to a 4G core network through a network node; the QCI change request is processed through a policy and charging rule function unit of the 4G core network to obtain an updated QCI, the updated QCI is sent and returned to the network node through the packet data network gateway, and session information related to the 4G terminal module is updated through the network node according to the updated QCI; and redirecting the 4G terminal module to a 5GC authentication management function unit through the network node according to the updated QCI.

Solutions for providing best effort service for voice calls (including video calls) using a non-guaranteed bit rate (GBR) bearer include: receiving, at a proxy node (e.g., a proxy-call session control function (P-CSCF)), a request to set up a voice session for a UE; requesting, by the proxy node, a policy node (e.g., a policy and charging rules function (PCRF) or a policy control function (PCF)) to set up a GBR data pipe (e.g., a dedicated bearer, a quality of service (QOS) class identifier (QCI) 1 bearer, or a fifth generation (5G) QoS identifier (5QI) 1 bearer); based at least on an error condition (e.g., a timeout or error message), instructing, by the proxy node, the UE to set up the voice session using an existing non-GBR data pipe (e.g., a default bearer, a QCI-5 bearer, or a 5QI-5 bearer).

Solutions are disclosed that provide for proxy-call session control function (P-CSCF) awareness of access point name (APN) or data network name (DNN). This permits the P-CSCF to enforce policies regarding use of internet protocol (IP) multimedia subsystem (IMS) resources, such as certain voice codecs (e.g., enhanced voice services, EVS) that use larger amounts of bandwidth, based on the APN / DNN assigned to a user equipment (UE). For example, certain IMS resources may be prioritized for home UEs over mobile virtual network operator (MVNO) UEs, or outbound roamers over inbound roamers, leveraging the P-CSCF's awareness of APN / DNN. In some examples, a packet gateway (PGW) or session management function (SMF) inserts APN / DNN information into a session initiation protocol (SIP) message going to the P-CSCF. In some examples, the P-CSCF retrieves APN / DNN information from a policy and charging rules function (PCRF) or a policy control function (PCF).

Aspects of the invention enhance the capabilities of the Message as a Platform (“MaaP”) by adding interfaces thereto so that the platform directly interfaces with the Online Charging System (“OCS”), the Policy and Charging Rules Function (“PCRF”), the Equipment Identity Register (“EIR”), the Cloud Database (“COB”) and the Home Subscriber Server (“HSS”) without middle layer or without using Rich Communication Services (“RCS”) as an intermediary. Moreover, embodiments of the invention may create a user interface of the MaaP so that users may configure parameters to interact with the network nodes right from the user interface.

A method for handling IMS registrations at a P-CSCF after PCRF database failure includes receiving a SIP REGISTER request message after a PCRF database failure and determining that the SIP REGISTER request message is for an existing user. The method further includes obtaining a list of user contacts having entries in a registration cache of the P-CSCF corresponding to an address of record in the SIP REGISTER request message, testing reachability of the user contacts in the list, and freeing resources of the P-CSCF for the user contacts determined to be unreachable.

Solutions for providing best effort service for voice calls (including video calls) using a non-guaranteed bit rate (GBR) bearer include: receiving, at a proxy node (e.g., a proxy-call session control function (P-CSCF)), a request to set up a voice session for a UE; requesting, by the proxy node, a policy node (e.g., a policy and charging rules function (PCRF) or a policy control function (PCF)) to set up a GBR data pipe (e.g., a dedicated bearer, a quality of service (QoS) class identifier (QCI) 1 bearer, or a fifth generation (5G) QoS identifier (5QI) 1 bearer); based at least on an error condition (e.g., a timeout or error message), instructing, by the proxy node, the UE to set up the voice session using an existing non-GBR data pipe (e.g., a default bearer, a QCI-5 bearer, or a 5QI-5 bearer).

The present disclosure provides a system (200) and a method for network function (NF) integration with geographical (GEO) file transfer protocol (FTP) servers (212, 214). The system (200) transfers the files from a local server (208) to the FTP server. The network function (policy control function (PCF) or policy and charging rules function (PCRF)) transfers the files to a primary server (212) and monitors the connection. The network function connects with a secondary FTP server (214) and transfers the files when the primary FTP server is down. The system (200) expedites a debugging process with efficiency, consequently saving valuable time.

Methods for handling a data connection session in an Internet Protocol (IP) Multimedia Subsystem (IMS) network are provided. The method includes configuring a S50 interface between a Mobility Management Entity (MME) and a Policy and Charging Rules Function (PCRF) entity in the IMS network, and notifying a User Equipment (UE) about a Mobile Terminated (MT) Voice over LTE (VoLTE) call by using the MME. Another method includes configuring a SBI interface between an Access and Mobility Management Function (AMF) entity and the Policy Control Function (PCF) entity in the IMS network, and includes notifying a UE about a MT Voice over New Radio (VoNR) call by using the AMF entity.

Solutions are disclosed that provide for proxy-call session control function (P-CSCF) awareness of access point name (APN) or data network name (DNN). This permits the P-CSCF to enforce policies regarding use of internet protocol (IP) multimedia subsystem (IMS) resources, such as certain voice codecs (e.g., enhanced voice services, EVS) that use larger amounts of bandwidth, based on the APN / DNN assigned to a user equipment (UE). For example, certain IMS resources may be prioritized for home UEs over mobile virtual network operator (MVNO) UEs, or outbound roamers over inbound roamers, leveraging the P-CSCF's awareness of APN / DNN. In some examples, a packet gateway (PGW) or session management function (SMF) inserts APN / DNN information into a session initiation protocol (SIP) message going to the P-CSCF. In some examples, the P-CSCF retrieves APN / DNN information from a policy and charging rules function (PCRF) or a policy control function (PCF).

Minimizing signaling traffic between a User Plane (UP) and a Control Plane (CP), where Policy and Charging Function / Policy and Charging Rule Function (PCF / PCRF) software transmits a first and a second Policy and Charging Control rule (PCCRule1 and PCCRule2) to CP equipment. The CP equipment installs both PCCRule1 and PCCRule2 on UP equipment as UPRule1 and UPRule2 respectively, where UPRule1 is set as active during a first time period and the UPRule2 set as active during a second time period. User Plane Function (UPF) software matching data traffic with a Packet Detection Rule (PDR) to generate identified traffic during the first and second time periods and automatically redirecting data traffic to a predetermined location at the expiration of the first and second time periods respectively. UPRule1 and UPRule2 are automatically enabled and disabled alternatively after expiration of their respective timers by the UPF software.

A method performed by a 5G or 6G communication system for supporting a higher data transmission rate is provided. The method includes receiving a first message from a first user equipment (UE), receiving satellite-related information from a policy and charging rules function / policy control function (PCRF / PCF) by using the first message, performing a resource update of the first UE by using the satellite-related information, transmitting the first message including information on the resource update to the first UE, receiving an acknowledgement (ACK) message for the first message from the UE, and updating the ACK message and transmitting the updated ACK message to a second UE.

The application discloses a communication method and device between terminal devices. The method comprises the following steps: in the case that a call request of a calling terminal is received, determining the state of an interface between a call session control function (CSCF) entity and a policy and charging rules function (PCRF) entity; in the case that the state of the interface is unavailable, performing communication by using a first communication strategy which does not use the interface; and in the case that the state of the interface is available, performing communication by using a second communication strategy which uses the interface. The application solves the technical problem that the terminal devices cannot communicate due to the interface failure between a proxy call session control function (P-CSCF) entity and a charging rules function (PCRF) entity.

A network operator can partition network elements, including elements of an IP Multimedia Subsystem (IMS) or Policy and Charging Rules Functions (PCRFs) into groups reserved for specific types of subscribers. When a user equipment (UE) registers with an IMS, elements of the IMS can contact a Home Subscriber Server (HSS) to determine a subscriber type associated with the UE. Based on the UE's subscriber type, an IMS element can determine an application server or other IMS element to contact about the UE based on identifying application servers or IMS elements that are also associated with the same subscriber type as the UE. Similarly, an IMS element can determine a PCRF to contact about the UE based on identifying a PCRF that is associated with the same subscriber type as the UE.

Solutions are disclosed that provide for proxy-call session control function (P-CSCF) awareness of access point name (APN) or data network name (DNN). This permits the P-CSCF to enforce policies regarding use of internet protocol (IP) multimedia subsystem (IMS) resources, such as certain voice codecs (e.g., enhanced voice services, EVS) that use larger amounts of bandwidth, based on the APN / DNN assigned to a user equipment (UE). For example, certain IMS resources may be prioritized for home UEs over mobile virtual network operator (MVNO) UEs, or outbound roamers over inbound roamers, leveraging the P-CSCF's awareness of APN / DNN. In some examples, a packet gateway (PGW) or session management function (SMF) inserts APN / DNN information into a session initiation protocol (SIP) message going to the P-CSCF. In some examples, the P-CSCF retrieves APN / DNN information from a policy and charging rules function (PCRF) or a policy control function (PCF).