公开(公告)号：US09781582B2

公开(公告)日：2017-10-03

申请号：US15326709

申请日：2014-08-29

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Shu-Shan He ,  Zheng Cao ,  Meng-Ge Duan ,  Huang Su

IPC: H04W72/00 ,  H04W4/20 ,  H04W4/10 ,  H04W24/02

CPC classification number: H04W76/45 ,  H04W4/10 ,  H04W4/203 ,  H04W24/02 ,  H04W76/15

Abstract: Short data is transmitted during a call hang time hold off period in a wireless communication system. During an active call on a voice channel, a radio controller detects deactivation of a push-to-talk (PTT) input at a transmitting mobile station (MS) via an uplink channel portion of the voice channel and identifies a particular MS in the wireless communication system in need to transmit short data. Responsively, the radio controller causes a call hang time hold off request to be transmitted via a downlink channel portion of the voice channel to all MSs in the active call instructing the mobile stations to delay call hang time during a call hang time hold off period. The radio controller then causes a short data transmission request to be sent to the particular MS instructing the particular MS to transmit inbound short data during the call hang time hold off period.