Patent application number | Description | Published |
20100124211 | REDUCING AN OCCURRENCE OF A VOIP CALL ON HOLD FROM BEING DROPPED IN EV-DO SYSTEMS - Methods, apparatuses, and systems for reducing an occurrence of a Voice over Internet Protocol (VoIP) call from being disconnected in an Evolution Data Only (EV-DO) system are disclosed. The VoIP call is placed on hold and at least one keep-alive packet is issued to prevent a radio link from disconnecting. The at least one keep-alive packet is issued at least while the VoIP call associated with the radio link is on hold and is configured to reset a dormancy timer for the call at one or more network entities. | 05-20-2010 |
20110149725 | OPTIMIZED DATA RETRY MECHANISMS FOR EVOLVED HIGH RATE PACKET DATA (EHRPD) - A method for optimizing data retry mechanisms is described. The method includes attempting to originate a data call on an evolved high rate packet data system. The method also includes determining that originating the data call has failed. A type of failure that caused the data call to fail is determined. The frequency of data call origination attempts is reduced based on the type of failure. | 06-23-2011 |
20110242975 | Single and Dual Internet Protocol Bearer Support - An apparatus operable in a communication system and having the capability to discard an internet protocol address is described. The apparatus is configured to receive an assignment of a first internet protocol address of a first type for a first application and a second internet protocol address of a second type for a second application for a data connection to a network. The apparatus is also configured to determine that the apparatus is currently not able to handle both the first internet protocol address and the second internet protocol address. The apparatus is further configured to determine an internet protocol address to discard, and discard the determined internet protocol address. | 10-06-2011 |
20120099586 | SYSTEMS, METHODS, AND APPARATUS FOR MANAGING IP ADDRESSES AND NETWORK TRAFFIC IN WIRELESS NETWORKS - Systems, methods and apparatus described herein include features that enable efficient management of keep-alive messages utilized to maintain IP addresses and/or PDN connections associated with idle data traffic channels. An access terminal may consolidate keep-alive messages for idle data traffic channels, reducing the number of keep-alive messages transmitted. An access terminal may select which idle data traffic channels to maintain, and may transmit a consolidated keep-alive message for associated IP addresses and/or PDN connections. Timers may be associated with PDN connections and sub-timers may be associated with IP addresses associated with a PDN connection. Keep-alive messages can be consolidated based on the timers, sub-timers and/or combination of timers and sub-timers. In a complementary method, a PDN gateway or other network node cooperates with access terminals to reduce network traffic. In another complementary method, the PDN gateway or other network node synchronizes the timers and/or sub-timers provided with an access terminal. | 04-26-2012 |
20120155430 | PREVENTING LOSS OF IP CONTINUITY WHEN TRANSITIONING BETWEEN DIFFERENT NETWORKS - Aspects of the present disclosure provide techniques for preventing loss of IP continuity when transitioning between networks. Certain aspects provide methods that generally include initiating a first timer upon attempting to transition from a first RAT network to a second RAT network during an IP session and initiating a second timer if a channel in the second RAT network is successfully acquired. According to aspects, a device may transfer context of the IP session to the second RAT network if a session is successfully negotiated in the second network prior to expiration of the second timer and the first and second networks share a common core network for IP services. | 06-21-2012 |
20120185577 | MANAGEMENT OF NETWORK ACCESS REQUESTS - Methods, systems, and devices are described for intercepting requests from applications installed on a mobile device. The requests are system calls that establish communication channels for the mobile device. The requests are captured and held from reaching TCP/IP stack of an operating system executing on the mobile device. An intercepted request is aggregated with other intercepted requests. The aggregated requests are bundled together and released to the operating system upon the detection of a triggering event. The capture, holding, and aggregation of requests from applications occur when the mobile device is in a background mode. | 07-19-2012 |
20120224485 | ARCHITECTURE FOR WLAN OFFLOAD IN A WIRELESS DEVICE - Architecture for performing WLAN offload in a wireless device is disclosed. In an exemplary embodiment, an apparatus includes an application section configured to form IP packets from data to be transmitted, a modem section configured to apply a cellular protocol to the IP packets to form cellular protocol packets, an endpoint configured to encapsulate the cellular protocol packets to form outer IP tunnel packets, and a WLAN interface configured to transmit the outer IP tunnel packets over a WLAN communication channel. In another exemplary embodiment, an apparatus includes a WLAN interface configured to receive outer IP tunnel packets over a WLAN communication channel, an endpoint configured to extract cellular protocol packets from the outer IP tunnel packets, a modem processor configured to remove a cellular protocol from the cellular protocol packets to form IP packets, and an application processor configured to extract received data from the IP packets. | 09-06-2012 |
20120314562 | METHODS AND APPARATUS FOR ENABLING FALLBACK TO A SECOND DATA SERVICE BASED ON THE PRESENCE OF FALLBACK CONDITIONS ASSOCIATED WITH ESTABLISHMENT OF A DATA CONTEXT WITH A FIRST DATA SERVICE - Aspects disclosed herein relate to enabling fallback to a second data service based on whether one or more fallback conditions are present before or during establishing a data context with a first data service. In one example, a UE may be configured to determine whether one or more fallback conditions are present before or during establishing a data session with a first data service. The UE may be further configured to prohibit further attempts to establish a data context to access the first data service based on the determination of the presence of at least one of the one or more fallback conditions. Some aspects disclosed herein relate to enabling fallback to a HRPD data service based on whether one or more fallback conditions are present before or during establishing a data context with an eHRPD data service. | 12-13-2012 |
20120320733 | REDUCING EVOLVED PACKET CORE INTERNET PROTOCOL SERVICE DISCONNECTS DURING INTER-RADIO ACCESS TECHNOLOGY HANDOVER - During inter-radio access technology (IRAT) handover between LTE and eHRPD technologies, Internet protocol (IP) service continuity at a user equipment (UE) may be maintained. Thus, a method, an apparatus, and a computer program product are provided for maintaining the IP service continuity during IRAT handover from an SRAT to a TRAT within an evolved packet core (EPC)—capable region. The apparatus attempts to transfer an EPC context to a TRAT, determines that a failure occurs when attempting to transfer the EPC context to the TRAT, and attempts to maintain at least one IP service continuity within the EPC context according to the failure. The attempt to maintain may include an attempt to maintain an entire EPC context or a set of parameters including at least one of an IP address, a domain name system (DNS) address, a proxy call session control function (P-CSCF) address, or a quality of service (QoS). | 12-20-2012 |
20120320827 | METHOD AND APPARATUS FOR EPC CONTEXT MAINTENANCE OPTIMIZATION - Internet protocol (IP) continuity is fundamentally not possible when a user equipment (UE) moves from an evolved packet core (EPC) radio access technology (RAT) to a non-EPC RAT. However, there are instances when it is beneficial to not completely release an EPC IP context, such as when the UE moves to the non-EPC RAT for only a short period of time. The UE may retain an EPC IP context in a suspended state while the UE is in the non-EPC RAT, and revive the context when the UE returns to the EPC RAT. Accordingly, a method, an apparatus, and a computer program product for maintaining an EPC context at a UE are provided. The apparatus suspends and retains the EPC context when moving from an EPC capable network to a non-EPC capable network, and resumes the suspended EPC context upon returning to the EPC capable network. | 12-20-2012 |
20130083771 | REDUCING NETWORK-INITIATED QOS INTERRUPTION TIME WHEN RADIO AND CORE NETWORKS ARE OUT OF SYNCHRONIZATION DUE TO DIFFERENT UNDERLYING TECHNOLOGIES - A method enables a user equipment (UE) intervention to reduce a network-initiated Quality of Service (QoS) interruption time or a disruption of the network-initiated QoS, while avoiding application intervention. The method includes communicating with a source radio access network (RAN) in accordance with a network-initiated quality of service (QoS) profile. The method also includes transferring to a target RAN. The method further includes triggering, by a user equipment (UE), a QoS setup to reestablish the QoS profile. | 04-04-2013 |
20130100795 | METHODS AND APPARATUS FOR HANDLING FAILURE AND RETRY MECHANISMS DURING eHRPD PRE-REGISTRATION - Aspects disclosed herein relate to effectively handling failure and retry mechanisms during pre-registration for an eHRPD optimized handover. In one example, a UE may be equipped to detect one or more instances of failure during a pre-registration procedure as part of an optimized handover process. The UE may further be equipped to perform one or more pre-registration retry processes based on the detected one or more instances of failure. In one aspect, the one or more instances of failure may include any combination of a permanent LTE connection failure, a temporary LTE connection failure, a session negotiation failure, a virtual connection failure when bringing up a data call, a link control protocol (LCP) failure, etc. | 04-25-2013 |
20140010221 | CONFIGURABLE HOST INTERFACE USING MULTI-RADIO DEVICE AND ARCHITECTURE FOR WLAN OFFLOAD - A method, an apparatus, and a computer program product for wireless communication are provided. A multi-radio device controls wireless communications by identifying one or more connection points between radio(s) of the multi-radio device and an operating system executing on a host device, analyzing a policy relating to the multi-radio device, and exposing, to the operating system, a subset of the connection points based on the policy. A modem manages a connection to an applications processor (AP) by virtualizing physical communication interfaces at the modem, providing a single Internet protocol (IP) interface representing the virtualized physical communication interfaces to a high level operating system (HLOS) at the AP, detecting a physical communication interface connected to the modem, and determining whether to expose the detected physical communication interface to the HLOS as a standalone virtualized physical communication interface, or hide the detected physical communication interface as part of an existing virtualized physical communication interface. | 01-09-2014 |
20140023041 | SYSTEMS AND METHODS SUPPORTING WLAN-WWAN MOBILITY IN DEVICES - Systems and methods are disclosed for supporting, in a device, Wireless Local Area Network (WLAN)-Wireless Wide Area Network (WWAN) mobility, data offload, and simultaneous usage of different access networks on a per Access Point Name (APN) basis. The device determines an access network among WWAN and WLAN for a data stream having an APN. The device additionally hands off the data stream according to the determined access network, while maintaining Internet Protocol (IP) continuity. The device further routes packets of the data stream to at least one of a protocol stack or interface for the determined access network in accordance with an inter-system routing policy (ISRP). | 01-23-2014 |
20140086226 | TRANSPORT OF CONTROL PROTOCOL FOR TRUSTED WLAN (TWAN) OFFLOAD - Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for utilizing a control protocol to establish multiple packet data network (PDN) connections through a trusted wide area network (TWAN). Techniques are provided for expanding mobile network capacity by offloading traffic from wireless wide area networks (WWAN) to other types of networks, including wireless local area networks (WLAN). | 03-27-2014 |
20140328177 | SUPPORT DATA CONNECTIVITY OVER WLAN AND WWAN - Methods, systems, and devices are described for managing data connectivity at a user equipment (UE). The managing may include determining that all traffic of all PDN connections of the UE is currently offloaded to a Wireless Local Area Network (WLAN) access network and then refraining from transmitting and receiving data over Wireless Wide Area Network (WWAN) PDN connections while all traffic of all PDN connections of the UE is offloaded to the WLAN access network. In response to detecting a triggering event, a PDN connection may be established with at least one of an available WWAN access network or the WLAN access network, according to a current WWAN camping status of the UE and a WLAN offload policy. | 11-06-2014 |
20150026758 | Methods To Achieve Modem-Assisted-Service-Classification Functionality in a Device with Multiple Subscriptions - Various embodiments provide methods performed by an modem-assisted-service-classification (MASC) client application operating on a multi-SIM computing device for implementing MASC functionality for two or more subscriptions. In various embodiments, the MASC client may implement MASC functionality by associating MASC policies for one or more access point names (APNs) with a specific subscription and by applying those policies to applications associated with those one or more APNs while that specific subscription is in active communication with its network. Thus, by managing a mapping of subscriptions, APNs/networks, and applications, the MASC client may enable implementation of MASC functionality for a multi-SIM computing device. | 01-22-2015 |