Nortel Networks Corporation

Ericsson Ab

Apple Inc.

Brian D Troup

Xixian Chen

Miroslav Budic

Weigang Li

Vasanta Chivukula

Ryan R Santa

Yuqiang Tang

Anit Lohtia

Guoqiang Xue

Martin Kendall

Shiva Mirzaei-Rezaei

Yong Zhou

Muhammad Khaledul Islam

Neil McGowan

Thomas Leonard Trevor Plestid

Hong Ren

Shahid Rasul Chaudry

Azeem Ahmad

James Weisert

David Andrew Tetreau

David Allan Boettger

A packet-switched wireless communications network includes a mobile station and a radio network controller that are able to establish a radio connection therebetween. Messages are exchanges over one or more traffic channels to establish a packet-switched services session between the mobile station and the radio network controller. The radio connection is not closed until all messages for establishing the packet-switched services session have been exchanged between the mobile station and the radio network controller.

Establishing a session in a packet switched wireless communications network

A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

Method and system for reducing connection set-up time

A method and system for connection management in a wireless data network, such as a 1xEV-DO network adds connections to new network sectors upon receipt of a connection request from an active terminal, but removes data connections that the active terminal requests to be dropped only after confirmation from the active terminal that a channel allocation message has been received and applied. The active network maintains an active set of connections that is at least as large as the active set maintained by the active terminal and does not initiate a connection termination if no confirmation of the channel allocation message is received. This allows for a reduction in the number of dropped connections.

Active set management enhancement for reliable soft handoff in 1XEV-DO system

Active set management enhancement for reliable soft handoff in 1xEV-DO system

Establishing a session in a packet-switched wireless communications network

Methods and apparatuses are provided for CDMA (code division multiple access) access availability to a large cell area, and for traffic channel establishment. A group of cell site modems are configured to look for access attempts generated in respective complete and/or sectorized circular or annular shaped areas centered at the center of the cell area, the areas collectively covering the cell area. To achieve this, each cell site modem has a local clock and the local clock within the first of the cell site modems is synchronized with a standard network time, and the local clock of each of the subsequent cell site modems is offset by a respective delay with respect to the standard network time which causes the cell site modem to search within its respective annular shaped area. A cell site modem is also made available as a traffic cell site modem and is operable to have its traffic acquisition search window centered at a location of an access attempt. Alternatively, a plurality of traffic cell site modems may be provided, each having dedicated circular or annular coverage areas within the cell. The traffic cell site modems also preferably have a local clock which may be synchronized, either to a standard network time, or to a respective delay which causes it to search in its respective area. Methods and for handing off between circular and annular shaped traffic coverage areas are also provided.

Systems and methods for implementing large CDMA cell sizes

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Richardson, TX, United States of America

Brian D Troup