公开(公告)号：US09601828B2

公开(公告)日：2017-03-21

申请号：US13834777

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Ning He ,  Daniel Fred Filipovic ,  Ramesh C. Chirala

IPC: H01Q3/24 ,  H04W24/02 ,  H04B7/04 ,  H04W72/08 ,  H04W76/02 ,  H04W36/30 ,  H04B1/44 ,  H04W36/14 ,  H04W88/06 ,  H04B7/06 ,  H04B7/08

CPC classification number: H01Q3/24 ,  H04B1/44 ,  H04B7/0404 ,  H04B7/0602 ,  H04B7/0608 ,  H04B7/0802 ,  H04B7/0814 ,  H04W24/02 ,  H04W36/14 ,  H04W36/30 ,  H04W72/085 ,  H04W76/18 ,  H04W88/06

Abstract: This disclosure provides systems, methods, and apparatus for an initial network acquisition process via multiple antennas. In one aspect a method of establishing communications via a wireless network at a wireless communications apparatus is provided. The method includes attempting an initial acquisition process, over one or more frequencies, for establishing communications over the wireless network via a transmit circuit and a receive circuit transmitting and receiving via a first antenna. The method further includes switching the transmit circuit and the receive circuit from transmitting and receiving via the first antenna to a second antenna in response to detecting failure of the initial acquisition process. The switching is independent of a performance metric of the first or the second antenna. The method further includes re-attempting the initial acquisition process based on the switching to the second antenna over the one or more frequencies.