Qualcomm Incorporated

Jeffrey Alan Dyck

Marcello Vincenzo Lioy

Uppinder Singh Babbar

Nischal Abrol

Jayanth Mandayam

Hongshi Guo

Ramin Rezaiifar

Ajith Tom Payyappilly

Gerardo Giaretta

Suli Zhao

Nikolai K N Leung

James Lionel Panian

Abhay Arvind Joshi

Idreas Mir

Vamsi Dokku

Gregory Lie

Sriram Nagesh Nookala

James J Willkie

Samson Jim

Anup Kuzhiyil

Paul R Johnson

Kavitha Vallari Devara

Nikolai Konrad NepomucenoLeung

Steven James Doerfler

Nikolai Konrad Nepomuceno Leung

Keyur C Shah

Gerald J Chambers

Bryan R Cook

Paul B McAllister

Siva Veerepalli

Marcello Lloy

Venkateshwaran Ramaswamy

Roberto Masciovecchio

Brian F Costello

Udayakumar U Menon

Amit M Singh

Shshank Sharma

Gregory R Lie

Lioy Marcello

Keyur C c/o Qualcomm Inc Shah

Vamsi K Dokku

Daniel Salek

Marcello c/o Qualcomm Incorporated Lioy

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).

Systems and methods supporting WLAN-WWAN mobility in devices

Growing demand for high-rate wireless data services is increasing the power consumption requirements of mobile devices. In particular, some smart mobile devices or smart phones are configured to allow multiple software applications to run simultaneously. Some of the applications receive and/or pull data from servers in communication with the network. The more frequently these software applications are provided with access to the data channel the greater the demand on the power supply. Accordingly, there lies a challenge to regulate transmissions to and from a mobile device without adversely impacting quality-of-service (QoS). A method of managing power while maintaining a robust quality-of-service (QoS) is provided by managing the frequency at which a paging channel or the like is monitored. Complimentary methods of changing the frequency of transmission of alerts on a paging channel or the like is also provided.

Management of paging channel monitoring

An interface architecture and protocol are provided for transferring messages between a plurality of devices. The architecture provides the capability to generate a plurality of service messages according to a single message format, and to transfer the service messages between a plurality of control points or service entities according to an efficient multiplexing protocol. The control points can be software applications or device drivers running on a terminal equipment device, and the service entities can be communication services such as network access services or device management services running on an attached data communication device such as a modem or a cellular phone.

Device interface architecture and protocol

Systems and methodologies are described that facilitate enhanced data service functionality for data services operating in a multi-processor computing environment. As described herein, respective processors and/or other components can be utilized to form a Smart Peripheral Subsystem (SPS). As further described herein, the SPS can operate in association with a modem processor and an application processor at a mobile computing device in order to reduce loading at the application processor and improve memory usage efficiency. In the case of a mobile computing device sharing a network connection with a tethered computing device, the SPS can couple a modem interface associated with the mobile computing device and an interface through which the disparate computing device is tethered to the mobile computing device such that operations such as Layer 2 (L2) framing and/or de-framing, Network Address Translation (NAT), or the like can be offloaded to the SPS under various circumstances.

Method and apparatus for managing data services in a multi-processor computing environment

A method and apparatus are provided for efficiently transferring data between a first and second processors having shared memory. A plurality of data packets are aggregated into a packet bundle at the first processor. The packet bundle is then transferred from the first processor to the second processor using the shared memory, wherein the transfer of the packet bundle is performed in a single context switch at the first processor. The packet bundle is then unbundled into individual data packets at the second processor, wherein a processing load of the second processor is reduced due to the aggregation of the data packets into the packet bundle by the first processor.

Methods and apparatuses to reduce context switching during data transmission and reception in a multi-processor device

Packet filtering is performed to detect for and discard malformed data packets that would be discarded by a wireless network if received from a wireless device. A cdma2000 network may restart a PPP session upon receiving (1) malformed data packets with source IPv4 addresses different from IPv4 addresses (if any) assigned to the wireless device or (2) malformed data packets with source IPv6 addresses having prefixes different from prefixes (if any) associated with the PPP session. The wireless device may receive data packets from a terminal equipment coupled to the wireless device and/or applications running at the wireless device. The wireless device may filter these data packets with packet filters to detect for malformed data packets with invalid IPv4 addresses, invalid IPv6 address prefixes, and so on. The wireless device discards malformed data packets and sends the remaining data packets to the wireless network.

Filtering of malformed data packets in wireless communication

Techniques for performing flow control in Universal Serial Bus (USB) are described. In one design, a USB host sends token packets to a USB device to initiate data exchanges with the USB device. The USB device determines that it is incapable of exchanging data with the USB host, e.g., because there is no data to send or because its buffer is full or near full. The USB device then sends a 'flow off' notification to the USB host to suspend data exchanges. The USB host receives the flow off notification and suspends sending token packets to the USB device. Thereafter, the USB device determines that it is capable of exchanging data with the USB host. The USB device then sends a 'flow on' notification to the USB host to resume data exchanges. The USB host receives the flow on notification and resumes sending token packets to the USB device.

Flow control for universal serial bus (USB)

A system and method for transparent Mobile IP registration within PPP negotiation uses a mobile telephone to relay messages between terminal equipment and a Foreign Agent (FA). An IPCP configuration request message by the terminal equipment requesting the assignment of an IP address is modified by the mobile telephone to delete the IP address request option. Other configuration options are forwarded unchanged by the mobile telephone to the peer/network. The peer/network responds with an acknowledgement of the requested configuration options and flow control between the terminal and the MT is asserted to permit Mobile IP registration. In the course of Mobile IP registration, and IP address is assigned to the mobile unit by the FA. Upon completion of the Mobile IP registration, flow control between the mobile telephone and the terminal is deasserted and the IP address assigned during Mobile IP registration is provided to the terminal equipment. In addition, the previously requested options may also be acknowledged.

System and method for transparent mobile IP registration within PPP negotiation

According to the invention an embodiment, a network node for communicating using a MAC address is disclosed. The network node includes a point-to-point interface, a bridge and a MAC address register. The point-to-point interface uses a first protocol. The bridge is coupled to the point-to-point interface and provides a fixed route for the Ethernet interface. The first protocol encapsulates the data of a second protocol. The MAC address register stores the MAC address for the second protocol, were the MAC address is dynamically determined in the field and written to the MAC address register. The MAC address is used when communicating with the network node through the point-to-point interface.

Dynamic media access control (MAC) address assignment

Methods and apparatus are presented herein for allowing a wireless communication device to perform a proxy authentication on behalf of a tethered device and ensure the authentication is encrypted.

Proxy-encrypted authentication for tethered devices

Methods and apparatus are presented herein for allowing a keyless access terminal (AT) to access a packet serving data node (PSDN) over a service network stream without deactivating the authentication functions of the authentication network stream.

Method and apparatus for supporting access network (AN) authentication

A method and system for link latency determination in a Mobile IP network determine an unloaded network delay; set a current estimated delay; initiate a current round trip estimation process; and set a retry timer. If the retry timer expires before the process completes, the method and system update the predetermined backoff period and repeat the preceding two steps. After re-registration, the method and system reset the current estimated delay time. The link latency determination optimizes the re-registration process between a mobile device and an agent device, thereby enhancing mobile device communications, minimizing network loading, and optimizing network traffic levels.

Link latency determination for optimal mobile IP re-registration

Methods and apparatus are presented for enabling data connectivity when a handoff occurs between one communication network and another communication network, wherein the communication networks belong to different air interface standards. The mobile station triggers a Compression Control Protocol (CCP) request message to a tethered device if the mobile station determines that a new PDSN is not enabled to perform the CCP protocol. The tethered device then responds with a CCP request message with or without new negotiation parameters. The mobile station forwards the CCP request message to the new PDSN. Since the new PDSN is not enabled with CCP, the new PDSN responds with a CCP rejection message. The rejection message is passed from the mobile station back to the tethered device. The tethered device then sends uncompressed data packets to the PDSN.

Maintaining data connectivity for handoffs between compression-enabled and compression-disabled communication systems

Methods and apparatus are presented to facilitate the transfer of a PPP session of a mobile communication device that is handed between multiple communication networks with different air interfaces.

Method and apparatus for updating mobile Ip data connectivity on transitions between wireless networks

A single USB interrupt endpoint is usable by two different active logical devices in a USB device. If a first logical device is to interrupt a USB host, then the first logical device writes a notification into the endpoint. The notification carries a number that identifies a first device object. If, however, a second logical device is to interrupt the host, then the second logical device writes a notification into the endpoint, but the notification carries a number that identifies a second device object. The USB host reads the notification. In one example, if the number and a Device ID indicate that the notification is for the first object, then the first object processes the notification. If the number and Device ID indicate that the notification is for the second object, then the first object notifies the second object so that the second object processes the notification.

Growing community of inventors

San Diego, CA, United States of America

Jeffrey Alan Dyck