Motorola Corporation

Other

Motorola Mobility LLC

James A Butler

Paul M Erickson

Steven D Upp

Lee Michael Proctor

Anand Bedekar

Steven C Jasper

Narayanan Venkitaraman

Jay P Jayapalan

Shreesha Ramanna

Paula Tjandra

Various embodiments are described for facilitating network mobility in communication networks with an aim toward enhancing the scalability of MIP. Generally, in most of these embodiments, a network node () sends a message to a network device () to establish a data path for a remote unit () served by the network node. This message comprises a source link layer address which is associated with the remote unit. The message may or may not be sent in response to receiving signaling to facilitate wireless connectivity of a remote unit via the network node. In addition, the network device to which the message is sent may be an access router (AR) or a foreign agent (FA) of the remote unit.

Method and apparatus for facilitating network mobility

An apparatus and method for efficient transitions between operating states in a communication network, includes a preliminary step of having a mobile station in a Dormant or Idle state. A next step includes requiring a data transfer, either to or from the mobile station. A next step includes transitioning the mobile station from the Dormant or Idle to an Active state. A next step includes transferring a bearer path context for the data from a Paging Control Function (PCF) to an RF Bearer Function. This can include creating a tunnel using an Inter-PCF handoff procedure. The result is a direct connection between an RF Bearer Function and an IP Router, without the PCF being in the data path.

Efficient transitions between operating states in a communication network

A signal detection system wherein the detection of the presence of a signal does not depend on the absolute magnitude of the desired signal but does depend on a system whereby the total relative signal energy received is compared with the relative energy within a desired frequency band. If the relative energy within the desired frequency is above a threshold proportional to the total then the desired signal is determined to be present.

Detection threshold adjustment method for linear matched filter receivers

In a QAM communications system, a novel synchronizing sequence of symbols added to the information channel simplifies acquisition of timing and synchronization by a receiver. Such synchronization vectors provide signals for improved AFC control signal generation.

Quadrature amplitude modulation synchronization method

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Bartlett, IL, United States of America

James A Butler