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US 2001/0024964 A1Published application
Transmission diversity
AssigneeNokia Networks Oy
InventorsYan Ivan Wang, Risto Wichman
Life of this patent
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AssigneeNokia Networks Oy
InventorsYan Ivan Wang, Risto Wichman
Estimating the term…
The present invention is based on the idea that the base transceiver station can make a decision as to changing transmission diversity in response to the power control message sent by the mobile station. The decision to change transmission diversity is made, for instance, on the basis of the result obtained from filtering the power control requests. For example, filtering can be carried out using a sliding window that contains power control information on the basis of which the decision is made. It is not necessary for the mobile station to transmit a special request to change transmission diversity; instead, the decision on changing transmission diversity is made by the base transceiver station in response to the power control information that the mobile station would, in any case, send to the base transceiver station.
A method to implement transmission diversity in a radio system, particularly in a mobile communications system that comprises at least one receiving unit (MS) and at least one transmitting unit (BTS), in which radio system the receiving unit and transmitting unit set up a data transmission connection over a radio path, the said method comprising
An arrangement for implementing transmission diversity in a radio system, particularly in a mobile communications system that comprises at least one receiving unit (MS) and at least one transmitting unit (BTS), in which radio system the receiving unit and transmitting unit set up a data transmission connection over a radio path, the said arrangement incorporating
Dependencies are inferred from the claim text.