	US 7,356,313 B2
	Method to enable open loop antenna transmit diversity on channels having dedicated pilots
Jorma Kaikkonen, Oulu (Finland); Markku Kuusela, Espoo (Finland); Sari Nielsen, Espoo (Finland); and Jussi Numminen, Turku (Finland)
Assigned to Spyder Navigations L.L.C., Wilmington, Del. (US)
Filed on Apr. 05, 2005, as Appl. No. 11/100,341.
Claims priority of provisional application 60/559673, filed on Apr. 05, 2004.
Prior Publication US 2005/0245206 A1, Nov. 03, 2005
Int. Cl. H04B 1/02 (2006.01)

U.S. Cl. 455—101 [375/267]

11 Claims

1. Method for carrying out antenna diversity in a system having a base station transmitting to user equipment equipped to process signals transmitted from more than one antenna of the base station, comprising:

transmitting channels from said more than one antenna from said base station to said user equipment for selected channels having dedicated pilots and transmitting channels from only one antenna for at least certain common channels, which are for user equipment equipped only to process signals transmitted from one antenna, and other selected channels, and

receiving and processing both said certain common channels and said channels having dedicated pilots in said user equipment equipped to process signals transmitted from more than one antenna and receiving and processing both said certain common channels and said other selected channels in said user equipment equipped only to process signals transmitted from one antenna.