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| Number | Title | Issue Date |
| 8185060 | Serving base station selection using backhaul quality information Techniques for selecting a serving base station for a terminal by taking into consideration the backhaul quality of candidate base stations are described. In one design, a base station may determine backhaul quality information indicative of its current backhaul qua... | 05/22/2012 |
| 8184607 | Preamble channel decoding Rather than attaching a preamble to a data traffic subpacket, a preamble channel is transmitted along with a traffic channel. In a system wherein the data traffic subpackets are variably sized, preambles can also be variably sized if a target station can decode vari... | 05/22/2012 |
| 8179840 | Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity This document describes a way to extend Mobile IP Authentication Authorization and Accounting (AAA) signaling to enable a node to request from a network operator combinations of home and local service capabilities (when roaming) in an efficient and scalable manner. ... | 05/15/2012 |
| 8126499 | Processing Qoffset parameter Systems, methodologies, and devices are described that employ indicators related to a parameter value(s) associated with a neighbor cell to facilitate communication by a mobile device in a network. The mobile device optionally can read a parameter value associated w... | 02/28/2012 |
| 8095130 | Controlling hand-off in a mobile node with two mobile IP clients Extending Mobile IP to support both local and remote access by using two MIP client stacks in the end node, a roaming Node in the local access network, a standard Home Agent in the remote network. Messages between the AR and the MN, and between the internal modules ... | 01/10/2012 |
| 8081603 | Compression static and semi-static context transfer Systems, methodologies, and devices are described that facilitate transferring a subset of compression context from a source base station to a target base station during an inter-base station handover of a mobile device to facilitate establishment of compression con... | 12/20/2011 |
| 8064401 | Expedited handoff Systems and methodologies are described that facilitate handing off from a first sector to a second sector. An established link to the first sector may be employed to communicate with the second sector. A handoff request from a wireless terminal to the second sector... | 11/22/2011 |
| 8042170 | Bearer control of encrypted data flows in packet data communications In a communication session in which data flows with encrypted data packets pass through a monitoring intermediary for data traffic control. The encrypted data packets include SPIs (Secured Parameter Indexes) which are used to identify SAs (Security Associations) for... | 10/18/2011 |
| 8027242 | Signal coding and decoding based on spectral dynamics In an apparatus and method, time-varying signals are processed and encoded via a frequency domain linear prediction (FDLP) scheme to arrive at an all-pole model. Residual signals resulted from the scheme are estimated. Quantized values of the all-pole model and the ... | 09/27/2011 |
| 8023464 | Dormant handoff in a packet data network Mobile unassisted dormant handoff in a wireless communication system supporting packet data communications. While in a dormant mode, a mobile node may change packet zones, wherein different packet zones are serviced by at least one different infrastructure element, ... | 09/20/2011 |
| 8010113 | Method and apparatus for performing handoff in communication systems A communication system including a closed loop power control system. Prior to allowing a handoff to a new base station, the subscriber station verifies that its reverse link signal is being received by the destination base station with sufficient energy. The determi... | 08/30/2011 |
| 8010104 | Method for performing RR-level registration in a wireless communication system Techniques to reduce the amount of registration required by a mobile station in a wireless communication system, especially if the registration zones are defined to be small areas. In one scheme, a mobile station registers (e.g., at RR-level) with a network entity (... | 08/30/2011 |
| 7986948 | Wireless handoffs between multiple networks The disclosure is directed to a mobile communication device, and method for handing off a mobile communications device between two networks. A processor in the mobile device may be used to establish a network connection with a server in a first network while support... | 07/26/2011 |
| 7962142 | Methods and apparatus for the utilization of core based nodes for state transfer Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile... | 06/14/2011 |
| 7925261 | Methods and apparatus for resovling frequency errors during transistion between communication networks Methods and apparatus for resolving frequency errors in a wireless device transitioning from a first communication network to a second communication network are disclosed. The methods and apparatus effect reception of a first and second channels from the second comm... | 04/12/2011 |
| 7924771 | Multimedia communication using co-located care of address for bearer traffic In a wireless communications system in which a mobile node seeks a communication session with a correspondent node by first signaling for initialization of the communication session through a first data path via an intermediate node. Thereafter, contents of the comm... | 04/12/2011 |
| 7903633 | Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used t... | 03/08/2011 |
| 7881714 | Synchronization of stored service parameters in a communication system Techniques for synchronization of stored service parameters are disclosed. In one aspect, a configuration identifier is transmitted from a mobile station to a base station, and compared with an identifier generated in the base station. If the identifiers match, the ... | 02/01/2011 |
| 7881444 | Apparatus, system, and method for providing voicemail service using presence status in packet data messaging system An apparatus, system, and method provide voicemail service using a packet data messaging service such as multimedia message service (MMS). Upon detecting that the presence status of a destination device is “unavailable”, the voicemail message is recorded at an o... | 02/01/2011 |
| 7822606 | Method and apparatus for generating audio information from received synthesis information Methods and apparatus for providing enhanced audio are described. In some embodiments speech synthesis information is used to provide user control of attributes of received broadcast speech, such as language, tone, speed, gender, and volume. In other embodiments, sp... | 10/26/2010 |
| 7822414 | Connection failure reporting in wireless communication systems Embodiments disclosed herein relate to methods and systems for reporting and compiling connection failures in wireless communication systems. In an embodiment, when an access terminal experiences a connection failure (e.g., an unintended one), the access terminal ma... | 10/26/2010 |
| 7796549 | Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used t... | 09/14/2010 |
| 7778631 | Synchronization of stored service parameters in a communication system Techniques for synchronization of stored service parameters are disclosed. In one aspect, a configuration identifier is transmitted from a mobile station to a base station, and compared with an identifier generated in the base station. If the identifiers match, the ... | 08/17/2010 |
| 7773987 | Method for performing RR-level registration in a wireless communication system Techniques to reduce the amount of registration required by a mobile station in a wireless communication system, especially if the registration zones are defined to be small areas. In one scheme, a mobile station registers (e.g., at RR-level) with a network entity (... | 08/10/2010 |
| 7773554 | Methods and apparatus for CDMA2000/GPRS roaming IIF architectures and corresponding call flows are provided for CDMA2000/GPRS roaming scenarios such as GPRS foreign mode with Mobile IPv4, GPRS foreign mode with Simple IPv4 or IPv6, CDMA2000 packet data foreign mode with Mobile IPv4, and CDMA2000 packet data forei... | 08/10/2010 |
| 7773547 | Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The me... | 08/10/2010 |
| 7769383 | Method and system for signaling the state of supplementary services The disclosure is directed to a mobile communication device that is capable of accessing different types of networks such as a circuit-switched network and a packet-switched network. When supplementary services are invoked involving the device, a protocol is used th... | 08/03/2010 |
| 7747283 | Synchronization of stored service parameters in a communication system Techniques for synchronization of stored service parameters are disclosed. In one aspect, a configuration identifier is transmitted from a mobile station to a base station, and compared with an identifier generated in the base station. If the identifiers match, the ... | 06/29/2010 |
| 7729695 | Method and apparatus for handling roaming lists in a wireless communication system Method and apparatus for updating roaming lists. An error handling message is provided when the roaming list protocols within the elements of a system are not compatible. A roaming list format identifier is provided to the remote user identifying the protocol versio... | 06/01/2010 |
| 7729686 | Security methods for use in a wireless communications system Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The acc... | 06/01/2010 |
| 7720479 | Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system A wireless communications system, e.g., an OFDM system, uses a plurality of carrier frequencies each with an associated frequency band. A base station sector transmitter in the system transmits ordinary signaling, e.g., user data, in its own assigned band. In additi... | 05/18/2010 |
| 7720024 | Method and apparatus for obtaining server information in a wireless network In a communications system where a mobile node seeks to establish contact with a server node within or outside the home network of the mobile node by first providing the general location information and the server type of the server node to a DHCP (Dynamic Host Conf... | 05/18/2010 |
| 7706796 | User terminal-initiated hard handoff from a wireless local area network to a cellular network A system and method are provided for supporting a multi-mode portable user terminal (UT) hard handoff procedure for a call from a wireless local area network (WLAN) to a cellular telephone network. The method includes: establishing a link between a UT and a serving ... | 04/27/2010 |
| 7701981 | System and method for improving robust header compression (ROHC) efficiency The invention relates to interpreting the change in the increment of the RTP TS field as occurring either due to silence suppression for a voice flow or a change in sampling/frame rate of a video flow. By interpreting this change correctly, the value of the TS_STRID... | 04/20/2010 |
| 7697523 | Method and apparatus for data packet transport in a wireless communication system using an internet protocol Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. A multicast tree is built between nodes through neighboring routers. The multicast tree forms a tunnel through which the broadcast content is transmi... | 04/13/2010 |
| 7680497 | Method and system for optimizing system-access and soft-handoff parameters based on location information A system and method for updating a current set of parameters in a communications system is provided. The system and method determines the current position of a mobile unit in a first coverage area, determines a set of optimum parameters based on the current position... | 03/16/2010 |
| 7675885 | Methods and apparatus for CDMA2000/GPRS roaming IIF architectures and corresponding call flows are provided for CDMA2000/GPRS roaming scenarios such as GPRS foreign mode with Mobile IPv4, GPRS foreign mode with Simple IPv4 or IPv6, CDMA2000 packet data foreign mode with Mobile IPv4, and CDMA2000 packet data forei... | 03/09/2010 |
| 7668541 | Enhanced techniques for using core based nodes for state transfer Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile... | 02/23/2010 |
| 7623497 | Methods and apparatus for extending mobile IP Methods and apparatus for extending Mobile IP to enable a Mobile IP Home Agent to forward to a default proxy MN server when it does not have a current binding for a MN home address. This can be used to route traffic when the MN is absent and to add processes onto th... | 11/24/2009 |
| 7623477 | Methods and apparatus for downlink macro-diversity in cellular networks The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets to be selectively delivered from a network/internetwork to an end node, e.g., a wireless communication device or terminal, over a set of... | 11/24/2009 |
