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US 2007/0167164 A1Published application
Hard handover method and controller
AssigneeNokia Corporation
InventorOlli Kirla
Life of this patent
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Abstract
The invention is related to a controller of a communication system that includes a module for exchanging messages indicating a traffic channel change between communication system units before hard handover, a module for changing a downlink traffic channel, a module for detecting a communication system unit on a handover target channel, a module for changing an uplink traffic channel, and a module for completing a hard handover process.
Claims2
A controller of a communication system, the controller comprising:
- a transceiver configured to exchange messages indicating bi-directional traffic channel change between other communication system units before hard handover;
- a first controller configured to change a bi-directional traffic channel before detection of a communication system unit on a handover target channel;
- and
- a second controller configured to carry out a bidirectional traffic channel change after at least one of an inter-cell handover command, and an intra-cell assignment command message has been sent to a base station to which a user terminal has a connection before the traffic channel change, wherein the second controller is operably connected to the transceiver.
1 more element
A controller of a communication system, the controller comprising:
- a transceiver configured to exchange messages indicating traffic channel change between communication system units before hard handover;
- a first controller configured to change a downlink traffic channel;
- a detector configured to detect a communication system unit on a handover target channel;
- a second controller configured to change an uplink traffic channel at a different time than the changing of the downlink traffic channel;
- and
- a processor configured to complete a hard handover process, wherein the first controller, the detector, the second controller, and the processor are operably connected to the transceiver, wherein the first controller is further configured to carry out the downlink channel change after sending a physical channel reconfiguration message, and
- the second controller is further configured to carry out the uplink channel change after receiving a physical channel reconfiguration message, wherein the first controller and the second controller are operably connected to the transceiver.
4 more elements
Dependencies are inferred from the claim text.