Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for channel optimization during point-to-point protocol (PPP) session requests. SOLUTION: 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 message informs the new PDSN of the new location of the mobile station and indicates both the number of dormant PPP instances associated with the mobile station and a service reference identifier for each PPP instance. A flag within the message may be used to indicate whether the PPP instances are dormant, i.e., whether the mobile station is engaged in a call. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid protocol for supporting communication with a plurality of networks. SOLUTION: A system and techniques include: monitoring a first network in accordance with a first air interface; receiving a message from a second network via the first air interface; and linking the second network with a second air interface, which is different from the first air interface. As a radio communication device advances to a geographically-different target area, various techniques for registering and linking for maintaining the connectability with both the networks are also under study. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for minimizing call setup latency. SOLUTION: In one aspect, channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier, in place of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station for sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup, without the need for mobile station paging and related messages. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce interference between restricted access nodes and access terminals associated with macro access nodes.SOLUTION: Restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node are selectively assigned to the designated channel. In some aspect, an access terminal associated with a macro access node performs a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect, an access terminal associated with a macro access node performs a handoff to a different carrier on the basis of location information. In some aspect, access to a restricted access node is controlled on the basis of policy and/or on the basis of operation of an access terminal associated with the restricted access node.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for providing secure transmissions in a wireless communication system.SOLUTION: Encryption of transmission traffic is performed at separate protocol layers 220 210, and L3 (200) so that separate encryption elements 204a-204e can be assigned to separate types of transmission traffic of voice, packet data and system services 201, 203, 205, which allows the implementation of different levels of encryption according to service requirements. The encryption elements 204a-204e use variable value inputs, called crypto-syncs, along with semi-permanent encryption keys to protect from replay attacks from rogue mobile stations. Since crypto-sync values vary, crypto-syncs are synchronized in the mobile and base stations.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and systems for reporting connection failures in wireless communication systems.SOLUTION: 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 may generate a connection failure record associated with the event, and send a message containing the connection failure record to an access network it has since established the connection. The access network may send a message containing a connection failure report acknowledgement (ACK) message to the access terminal, upon reception of the connection failure report message. The network operators may use the connection failure records thus compiled to identify problematic spots in the system and improve the quality of service.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for data communication of low delay data over multiple channels having different speed and latency and requiring a different amount of time to set up. SOLUTION: When a dedicated channel is to be utilized, a transmitter transmits on the dedicated channel packets to be transmitted on a common channel. Since the packets have the same sequence number, a receiver detects the duplicate packets. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To adapt a protocol which manages an infrastructure in response to management of aspect corresponding peer-to-peer communication between access terminals without extensive redesign or change the protocol. SOLUTION: In a multiple-access network, network access terminals 106 can communicate with network infrastructure access nodes 104, or conduct peer-to-peer communications 110. The access terminals are adapted to adjust the transmit power level in response to power control commands received from the network and from at least one access terminal. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent use of unsynchronized stored service parameters and associated call setup and subsequent renegotiation, to reduce call setup time and to provide more efficient use of system resources. SOLUTION: In one aspect, a configuration identifier is transmitted (370) from a mobile station (106) to a base station (104), and compared with an identifier generated in the base station (380). If the identifiers match, the configuration is used for communication (390). In another aspect, the identifier is generated by selecting an identifier associated with a configuration from a configuration table (610). In yet another aspect, the identifier is generated by computing a cyclic redundancy check (CRC) of the configuration (320). COPYRIGHT: (C)2009,JPO&INPIT