公开(公告)号：US20170280422A1

公开(公告)日：2017-09-28

申请号：US15080725

申请日：2016-03-25

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Jose A. Castelo Vega ,  Siddharth Pandey ,  Aditya A. Marawar ,  Rafael L. Rivera-Barreto

IPC: H04W72/02 ,  H04W72/04 ,  H04W4/22

CPC classification number: H04W72/02 ,  H04W4/90 ,  H04W16/14 ,  H04W36/0022 ,  H04W48/18 ,  H04W72/0453

Abstract: A wireless communication device (UE) conducting wireless communications according to a specified radio access technology (RAT) in a first communications band belonging to a first network may be required to switch to a different communications band due to network restrictions and/or radio link failure. The UE may therefore perform a system scan identifying other communications bands associated with the first RAT and available at the present location of the UE. The UE may identify whether the other communications bands include preferred communications bands belonging to the first network, support a service associated with the wireless communications of the UE, and have an energy level higher than a specified threshold. If one or more preferred communications bands are present, the UE may switch communications from the first communications band to one of the preferred communications bands, even if it doesn't have the highest energy level among all the other communications bands.

公开(公告)号：US10021673B2

公开(公告)日：2018-07-10

申请号：US15080725

申请日：2016-03-25

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Jose A. Castelo Vega ,  Siddharth Pandey ,  Aditya A. Marawar ,  Rafael L. Rivera-Barreto

IPC: H04W4/00 ,  H04W72/02 ,  H04W72/04 ,  H04W16/14 ,  H04W48/18 ,  H04W4/90 ,  H04W36/00

CPC classification number: H04W72/02 ,  H04W4/90 ,  H04W16/14 ,  H04W36/0022 ,  H04W48/18 ,  H04W72/0453

Abstract: A wireless communication device (UE) conducting wireless communications according to a specified radio access technology (RAT) in a first communications band belonging to a first network may be required to switch to a different communications band due to network restrictions and/or radio link failure. The UE may therefore perform a system scan identifying other communications bands associated with the first RAT and available at the present location of the UE. The UE may identify whether the other communications bands include preferred communications bands belonging to the first network, support a service associated with the wireless communications of the UE, and have an energy level higher than a specified threshold. If one or more preferred communications bands are present, the UE may switch communications from the first communications band to one of the preferred communications bands, even if it doesn't have the highest energy level among all the other communications bands.