85 results about "Access network discovery and selection function" patented technology

The various embodiments herein provide a method and system for providing network offloading in a wireless communication. The method comprising includes obtaining an Access Technology Selection Policy (ATSP) from at least one of Access Network Discovery and Selection Function (ANDSF), pre-configuration and Mobile Management Entity (MME), wherein the ATSP comprises of a plurality of radio access network selection criteria assistance default threshold values; modifying the ANDSF ATSP threshold values based on at least one of the radio characteristics and load conditions of the Radio Access Network (RAN) node by the RAN node; sending the modified ATSP threshold values to the UE; updating the ANDSF policy with the modified ATSP threshold values by the UE and determining offloading of the UE from a first radio access network to a second radio access network by the UE.

A method of handling an access network discovery and selection function (ANDSF) for a network of a wireless communication system is disclosed. The method comprises determining a first plurality of closed subscriber group (CSG) cells of the wireless communication system with a first CSG identity, for a mobile device of the wireless communication system to communicate with an evolved packet core (EPC) network of the wireless communication system via the first plurality of CSG cells, after the network determines the 3rd Generation Partnership Project (3GPP) as an access technology for the mobile device; and configuring an inter-system mobility policy (ISMP) node such that a value of an AccessTechnology leaf of a PrioritizedAccess node is configured as the 3GPP, and a value of a first AccessId leaf of the PrioritizedAccess node is configured as the first CSG identity of the first plurality of CSG cells.

The invention provides a network access processing method and user equipment. The method includes that the user equipment (UE) accesses to a first visit public land mobile network (VPLMN) through a first access network and accesses to a second VPLMN through a second access network; the UE finds and selects strategies of a functional entity of an ANDSF (Access Network Discovery And Selection Function) and one of strategies of an ANDSF of a second VPLMN according to an access network of the first VPLMN to determine to initiate a data flow diversion operation; and the UE performs the data flow diversion operation according to the ANDSF strategies of the first VPLMN and the ANDSF strategies which is different from the ANDSF strategies used for determining the initiation of the data flow diversion operation in the ANDSF strategies of the second VPLMN. The network access processing method and the user equipment effectively ensure that the UE can cooperatively achieve the flow diversion operation of the data flow between 3GPP (the 3rd Generation Partnership Project) access networks and WLAN (Wireless Local Area Network) access networks of different VPLMNs according to different ANDSF strategies after receiving the ANDSF strategies sent by different VPLMNs in a roaming scenario, so that the utilization rate of network resources is improved and the network congestion is reduced.

Embodiments are provided for supporting network selection for dual mode user equipment that access both WiFi and 3GPP networks. The embodiments allow a UE to determine network selection for a WLAN using an Access Network Discovery and Selection Function (ANDSF) according to the UE's capability to support a HotSpot 2.0 (HS2.0) WiFi selection mechanism. In an embodiment, the ANDSF server provides the UE with network selection policy and discovery information indicating available wireless access networks to the UE. The information provided to the UE includes both information for HS2.0 capable UEs and information for non-HS2.0 capable UEs. The UE then selects the suitable information for network selection according to UE support or lack thereof for HS2.0. In another embodiment, the ANDSF receives capability information from the UE regarding support for HS2.0, and accordingly provides suitable selection policy and network discovery information to the UE.

The invention provides a method and a system for realizing accessing through a wireless local area network (WLAN) access network. The method comprises the following steps that: user equipment (UE) accesses an evolved packet core network (EPC) and interacts with access network discovery and selection function (ANDSF) to acquire access network information of a WLAN; and the UE is connected with the wireless local area network access network (WLANAN) and accesses the core network by using the acquired access network information of the WLAN. Because the UE previously accesses the EPC and interacts with the ANDSF to acquire the access network information of the WLAN, namely the UE knows the wireless core network to which the current WLANAN is connected or can be accessed. Thus, the wireless core network which subsequently participates in access authentication is the wireless core network to which the current WLANAN is connected or can be accessed, successful accessing of the UE is ensured, and the load of the UE and the network is reduced, so that the resource is saved and the user experience is enhanced.

Disclosed is a method for enabling user equipment (UE) to steer traffic in a wireless communications system. The method comprises the steps of: transmitting UE traffic steering preference information to a first access network; receiving traffic steering information from the first access network, the traffic steering information being set based on the UE traffic steering preference information; evaluating the traffic steering based on at least one of a first and a second traffic steering rule; and performing the traffic steering between the first access network and a second access network based on the result of the evaluation of the traffic steering. The first traffic steering rule is prescribed by ANDSF (Access Network Discovery and Selection Functions). The second traffic steering rule is prescribed by the first access network.

The invention discloses a method for processing a strategy conflict by user equipment (UE). The method comprises the following steps that: after receiving strategies transmitted by a visited-network access network discovery and selection function (VANDSF) entity and a home-network discovery and selection function (HANDSF) entity respectively, the UE integrates and rearranges the received strategies according to the strategy transmitted by the VANDSF entity; and the UE realizes sequential access of access networks according to the rearranged strategies. The invention also discloses a system for processing the strategy conflict by the UE. In the system, a conflicted strategy processing unit is used for the UE to receive the strategies transmitted by the VANDSF entity and the HANDSF entity, and integrating and rearranging the received strategies according to the strategy transmitted by the VANDSF entity. The method and the system of the invention can solve the conflict between strategies provided by the HANDSF entity and the VANDSF entity.

The invention discloses a method for providing an access network protocol selection function by an access network discovery and selection function (ANDSF), comprising: the ANDSF generates an access network list according to an access network request message sent by user equipment (UE); and the UE selects an access network from the access network list according to an access network protocol type supported by self and initiates switching to the selected access network. The invention also provides a system for providing an access network protocol selection function by an ANDSF. The method and the system can solve the problem of service interruption caused by inconsistent access network protocol types supported by the UE and the access network when the UE switches the access network.

A system and method is provided for performing an access network discovery and selection function in a communication system. An access network discovery and selection function (“ANDSF”) server is operable with a Third Generation Partnership Project (“3GPP”) radio access network and a Wireless Fidelity (“Wi-Fi”) radio access network coupled to a core network. The ANDSF server is configured to communicate with a user equipment over an enhanced S14 interface. The enhanced S14 interface comprises Wi-Fi radio access technology data including a basis service set (“BSS”) load indication, security information, quality of experience information, backhaul network bandwidth and average throughput. The ANDSF server is also configured to provide policy information to the user equipment based on conditions in the Wi-Fi radio access network and the 3GPP radio access network.

The invention discloses an access network information acquisition method, an access network fining and selecting functional unit and a terminal. The method comprises the following steps: the access network discovery and selection function (ANDSF) unit acquires attribute information of an access network supplied to the terminal from an authentication, authorization and accounting (AAA) server after receiving an access network request message from the terminal; and the ANDSF unit transmits information of access network to the terminal to be convenient for the terminal to select an access network to be accessed from access networks corresponding to the information of access network according to the information of access network, wherein the information of access network carries the attribute information of access network. The invention improves terminal switching efficiency and ensures service continuity.

A method and an apparatus for steering traffic in a wireless communication system are provided. User equipment (UE) within a visitor public land mobile network (VPLMN) transmits to a network, access network discovery and selection functions (ANDSF)-related information including information on at least a home ANDSF (H-ANDSF) set by a home PLMN (HPLMN) and/or a visitor ANDSF (V-ANDSF) set by the VPLMN. The UE receives, from the network, the traffic steering information generated through the network on the basis of the ANDSF-related information, and steers the traffic on the basis of the received traffic steering information.

Systems, methods, and instrumentalities are disclosed to configure a mobile node. A mobile node may receive a configuration message. The configuration message may be received from an access network discovery and selection function (ANDSF), which may be part of an open mobile alliance device management (OMA DM) server. The configuration message may comprises a mobile node rule. The mobile node may change a configuration of the mobile node in accordance with the mobile node rule. The mobile node rule may indicate that the mobile node is to transmit uplink packets on a certain interface. The mobile node may transmit an uplink packet over the interface indicated by the mobile node rule.

One embodiment of the present specification provides a method for determining access on the basis of a policy. The method for determining access can comprise the steps for: receiving a plurality of policies including wireless LAN (WLAN) selection rules from a plurality of access network discovery and selection functions (ANDSFs) in a plurality of public land mobile networks (PLMNs); selecting any one of the plurality of policies on the basis of preset location-related criteria; and determining whether traffic of a user is delivered to a 3GPP access or detoured to a WLAN access, according to WLAN selection rules of the selected policy.

A network selection method, device and system are provided by the present invention. The method includes the following steps: from network selection strategy information stored in an Access Network Discovery and Selection Function (ANDSF) agent unit, the network selection strategy information corresponding to a User Equipment (UE) is obtained, wherein the network selection strategy information includes information of an access network that the UE could preferably select; from access network discovery information stored in the ANDSF agent unit, the access network discovery information corresponding to the UE is obtained, wherein the access network discovery information is obtained from a radio control device in the access network, and the access network discovery information is used for access network discovery and selection; and according to the network selection strategy information and said access network discovery information, the suitable access network is selected as the target access network of the UE.

A method of selection and/or handover for multi radio access technologies in a 5G cellular network. The method includes: 1) collecting, by a user terminal, load information of a candidate Access Point (AP) or an Evolved Node (H)eNB via a local entity of Access Network Discovery and Selection Function (L-ANDSF); 2) checking, by the user terminal, a Received Signal Strength (RSS) value of the candidate AP or (H)eNB, a Reference Signal Received Quality (RSRQ) and a Service Sensitivity to Latency; 3) based on the above information, evaluating suitability of an available radio access technology; 4) triggering, by a specific triggering event, a fuzzy logic controller, to select a most appropriate radio access technology for each session; and 5) establishing a new session to perform admission control or handover.

The embodiment of the invention discloses a method and a device for shunting services among different networks. The method comprises the following steps: controlling user equipment (UE) to send an ISRP (Inter-system Mobility Policy) request to an ANDSF (Access Network Discovery and Selection Function) unit by a network side through the capability negotiation between the ANDSF unit and the user equipment; instructing to access a non-3GPP (3rd Generation Partnership Project) network by using a command for accessing the non-3GPP network generated according to the ISRP request by using the ANDSF unit; after the UE is connected with a 3GPP network and the non-3GPP network at the same time, instructing the user equipment which services are to reside in the 3GPP network and which services are to reside in the non-3GPP network according to an ISRP shunting strategy issued by the ANDSF unit according to the ISRP request. By means of the process above, services in the 3GPP network can be shunted by independently implementing the ISRP shunting strategy, so that the aim of saving network resources in a service shunting process by controlling the user equipment to initiate an ISRP flow by the network side through capability negotiation is fulfilled.

A method of 5G/WLAN vertical handover based on fuzzy logic control, the method including: 1) obtaining, by a mobile node, dynamic access-network information from a database of access network discovery and selection function; 2) from the obtained dynamic access-network information, sorting out and selecting an RSS, an available bandwidth, and a degree of user's preference for WLAN as performance parameters, and monitoring a real-time status of networks; 3) when the real-time status of the networks satisfies mandatory user-defined rules, executing a typical handover directly according to the user-defined rules; when the real-time status of the networks does not satisfy mandatory user-defined rules, triggering a vertical handover-decision procedure based on a fuzz logic mode; and 4) conducting adjustment and control, by the MN, by dynamically updating access-network information, changing rules and varying membership functions.

The present invention refers to a method for managing a network access user policy (UOP) associated to with a user equipment (UE1) for offloading data traffic, using Access Network Discovery and Selection Function (ANDSF), wherein one or more Wi-Fi access points are available for the UE1 and the UE1 is in communication with an server through a mobile communications network.

The invention relates to a user tag based shunt method and system in a 5G network, belonging to the technical field of communications. On the basis of a C-radio access network (C-RAN) architecture, a user tag is analyzed and extracted by a deep packet inspection (DPI) module, and a shunt strategy is deployed on an access network discovery and selection function (ANDSF), so as to realize WiFi shunt in a 5G complex heterogeneous network. The shunt method and system comprehensively consider three aspects of factors, namely, user preference, service requirements and network performances. For dense and complex distribution of WiFi in future 5G network and the heterogeneous network environment in which WiFi and 5G network are further fused, the method and system well solve the problem of WiFi shunt. The method and system mainly comprise a WiFi shunt trigger unit. An access point (AP) proactively reports or passively reports network state information. A DPI unit analyzes and acquires the user tag. The ANDSF executes the shunt strategy, ranks candidate WiFi, and starts the shunt switching process. The method and device can simultaneously satisfy service requirements and achieve the purpose of network resource dynamic match, improve the user quality of experience (QoE), balance network load, and realize benefit maximization of the user and network operators.

An embodiment of the invention discloses an Internet access and strategy sending method and device and relates to the wireless communication field. The Internet access and strategy sending method and device are used for solving the problem of network access of a terminal when an ANDSF (Access Network Discovery and Selection Function) strategy is in conflict with HS strategies. According to the scheme, a new ANDSF strategy which is not in conflict with the HS strategies is obtained from an ANDSF server through the terminal when the available HS strategies which are accessed into an WLAN (Wireless Local Area Network) are in conflict with the ANDSF strategy and accordingly an access network can be selected and accessed by the terminal according to the new ANDSF strategy and accordingly the problem of the network access of the terminal when the ANDSF strategy is in conflict with the HS strategies is solved.

The invention discloses a method for selecting a gateway. The method comprises the following steps that user equipment (UE) accesses into a network, and transmits a connection request which carries with user location information to an access network discovery and selection function unit (ANDSF); and the ANDSF selects the gateway according to the user location information. The invention also provides a system for selecting gateway. According to the technical scheme disclosed by the invention, the ANDSF can select an access gateway for the UE according to the user location information which is supplied by the UE.

The embodiments of the present invention disclose a method for controlling a network congestion and a load perception function, which are applied to a wireless communication network. The method comprises: a load perception function obtaining user location information and a user identification from an access network discovery and selection function (ANDSF) or a user equipment; and the load perception function determining a congestion state of a cell used by a user according to the user location information, the user identification and congestion judging information obtained from an access network device. In the embodiments of the present invention, the load perception function judges the congestion state of the cell used by the user according to the congestion judging information, the user location information and the user identification, so that when cell congestion occurs, a PCRF is notified to conduct congestion management on a service developed by the user in the cell, or the user equipment in the cell is notified to unload the service which is being developed, thereby alleviating the network load and reducing the network congestion.

A method for allowing a user equipment to access a local Access Network Discovery and Selection Function server associated with a radio access network of a mobile network and to which a central Access Network Discovery and Selection Function server associated with a core network of said mobile network provides a delegation for at least a local policy, the method comprising allowing said access using a dedicated bearer established for said access in said mobile network.

The invention provides an access network switching method, an access network discovery and selection function entity and a terminal, which are used for solving the problems in the prior art that power consumption is higher and the switching time is longer when the terminal is used for carrying out access network selection and switching. The method comprises the following steps that the access network discovery support functions (ANDSF) receive an access network inquiring request when the terminal accessed into a first access network carries out access network switching and the access network inquiring request carries a mark and position information of the terminal; the ANDSF determine at least one available second access network information in the region of the terminal according to the position information of the terminal; and the ANDSF send the second access network information and a network selecting policy to the terminal so that the terminal selects a target access network from the second access network information according to the network selecting policy and is switched into the target access network.