US 8,559,390 B2Granted

Method and apparatus for performing vertical handover in SDR terminal

AssigneeElectronics and Telecommunications Research Institute

InventorsSeung-que Lee, Nam-hoon Park, Yeong-jin Kim

Life of this patent

Estimating the term…

Loading patent…

Abstract

Disclosed are a method and apparatus for allowing a Software Defined Radio (SDR) terminal to perform a vertical handover between different services. The vertical handover method includes: receiving a handover request from an application service which is currently being executed; selecting a new application service which is a handover target from among a plurality of application services, in response to the handover request; installing the new application service in the SDR terminal so that the new application service is executable by the SDR terminal; and performing a handover to the new application service. Accordingly, since handover is performed seamlessly between different services, continuity of service may be ensured.

Claims14

Dependent claims

A vertical handover method which is performed by a Software Defined Radio (SDR) terminal capable of selectively executing at least one of a plurality of application services, the method comprising:

receiving a handover request from an application service which is being currently executed;
selecting a new application service which is a handover target from among the plurality of application services, in response to the handover request, based at least partly on installation history information about application services executable in the SDR terminal;
installing the new application service in the SDR terminal so that the new application service is executable by the SDR terminal;
and
performing a handover to the new application service;
wherein the selecting of the new application service comprises preferentially selecting an application service based on a time of previous installation of the application service in the SDR terminal and on a record of the application service with respect to a channel scanning;
and
wherein the selecting of the new application service comprises selecting the new application service based on a Software Component Descriptor (SCD) and a Software Assembly Descriptor (SAD) of a domain profile of the SDR terminal.

5 more elements

An apparatus for vertical handover which is included in a Software Defined Radio (SDR) terminal capable of selectively executing at least one of a plurality of application services, comprising:

at least one service execution unit which is software-reconfigurable and capable of executing various application services;
a handover execution unit to perform a handover between the application services that are executable by the SDR terminal;
and
a Software Communication Architecture (SCA) core framework, in response to receiving a handover request from the service execution unit which executes an application service, to generate a service execution unit for executing an application service that is a handover target, and to control execution of a handover of the SDR terminal in connection with the service execution unit and the handover execution unit based at least partly on installation history information about application services executable in the SDR terminal;
wherein the SCA core framework is further to preferentially select an application service based on a time of previous installation of the application service in the SDR terminal and on a record of the application service with respect to a channel scanning;
and
wherein the SCA core framework is further to select the new application service based on a Software Component Descriptor (SCD) and a Software Assembly Descriptor (SAD) of a domain profile.

4 more elements

Dependencies are inferred from the claim text.