公开(公告)号：US20190090280A1

公开(公告)日：2019-03-21

申请号：US15777348

申请日：2015-12-31

Applicant: QUALCOMM Incorporated

Inventor： Parthasarathy KRISHNAMOORTHY ,  Jiming GUO ,  Chintan Shirish SHAH ,  Haiqin LIU ,  Zhen ZHANG ,  Yunsong MU ,  Ammar KITABI ,  Praveen Kumar APPANI ,  Pavan KAIVARAM ,  Jayesh BATHIJA ,  Krishna Rao MANDADAPU ,  Premshankar UMASANKAR ,  Vigneshwar SEKARBABU ,  Peng WU ,  Tom CHIN

IPC: H04W74/08 ,  H04W72/12 ,  H04W76/16

Abstract: Apparatuses and methods are described herein for a wireless communication device to request uplink grants associated with the first subscription using at least one Radio Frequency (RF) resource, including tuning away from the first subscription to the second subscription for a tune-away time interval, determining whether the tune-away time interval exceeds a threshold, transmitting at least one scheduling request associated with the first subscription for a throttled count in response to the tune-away time interval exceeding the threshold, wherein the throttled count is less than a default count, determining whether an uplink grant has been received in response to any of the at least one scheduling request transmitted within the throttled count, and initiating an uplink data Random Access Channel (RACH) process in response to not receiving the uplink grant.