Method and apparatus for wireless intersystem handover
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsTorgny Palenius, Johan Hokfelt, Christer Östberg, Jan Wichert, Mikael Nilsson, Richard Ewald, Patrik Olofsson, Hákan Palm
Life of this patent
Estimating the term…
Abstract
A method and apparatus for measurement event synchronization of a portable radio communication apparatus providing multiple radio access technologies, wherein an idle gap is identified between transceiver activities of a first radio access technology device, and an execute signal is sent to a second radio access technology device for initiating inter radio access technology measurements of the second radio access technology device, to be performed during the gap.
Claims13
A method for synchronizing measurement events within a portable radio communication apparatus providing multiple radio access technologies including a first radio access technology device and a second radio access technology device, comprising the steps of:
- the portable radio communication apparatus engaging in transceiver activities that are separated by one or more idle gaps;
- the portable radio communication apparatus ascertaining whether an idle gap between transceiver activities of the first radio access technology device is suitable for usage by the second radio access technology device;
- the first radio access technology device responding to the idle gap between transceiver activities of the first radio access technology device being suitable for usage by the second radio access technology device by sending an execute signal to the second radio access technology device for initiating inter radio access technology measurements of said second radio access technology device to be performed during said idle gap;
- the second radio access technology device responding to the execute signal by performing a measurement operation during the idle gap;
- and
- preparing said second radio access technology device for performing said inter radio access technology measurements,
- wherein said step of preparing said second radio access technology device comprises the step of:
- determining whether inter radio access technology measurements are possible during a next gap, based on information about an estimated length of said gap.
A portable radio communication apparatus providing multiple radio access technologies, comprising a controller, a first radio access technology device and a second radio access technology device, wherein the first radio access technology device engages in transceiver activities that are separated by one or more idle gaps, wherein said first and second radio access technology devices are operatively interconnected, and said controller comprises:
- means for ascertaining whether an idle gap between transceiver activities of said first radio access technology device is suitable for usage by the second radio access technology device;
- means for responding to the idle gap between transceiver activities of the first radio access technology device being suitable for usage by the second radio access technology device by causing the first radio access technology device to send an execute signal to said second radio access technology device for initiating inter radio access technology measurements of said second radio access technology device during said idle gap;
- means for causing the second radio access technology device to respond to the execute signal by performing a measurement operation during the idle gap;
- and
- means for preparing said second radio access technology device for performing said inter radio access technology measurements,
- wherein said means for preparing said second radio access technology device comprises:
- means for determining whether inter radio access technology measurements are possible during a next gap, based on information about an estimated length of said gap.
Dependencies are inferred from the claim text.