| US 7,515,945 B2 | ||
| Connected mode for low-end radio | ||
| Päivi M. Ruuska, Tampere (Finland); Antti Lappeteläinen, Espoo (Finland); Jukka Reunamäki, Tampere (Finland); and Juha Salokannel, Kangasala (Finland) | ||
| Assigned to Nokia Corporation, Epsoo (Finland) | ||
| Filed on Jun. 30, 2003, as Appl. No. 10/610,990. | ||
| Prior Publication US 2004/0266494 A1, Dec. 30, 2004 | ||
| Int. Cl. H04B 1/00 (2006.01); H04L 12/42 (2006.01) | ||
| U.S. Cl. 455—574 [455/41.2; 455/41.3] | 68 Claims |
| 1. A method, comprising:
transmitting a broadcast polling message from an advertising device advertising availability for connection for subsequent
data transfer, the broadcast polling message including a polling role switching indicator;
receiving from a user device a response message on the initialization channel including an indication of a data channel different
from the initialization channel to be used for subsequent communication between the advertising device and the polling device,
and containing a response polling role switching indicator;
enabling the advertising and user devices to establish a wireless short-range connection on the indicated data channel, wherein
polling roles of the advertising and user devices are coordinated in accordance with the response polling role switching indicator,
the device in the polling role being enabled to periodically transmit polling messages to the polled device, allowing power
to be conserved in the polling device.
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