Motorola Solutions, Inc.

Huang Su

Meng-Ge Duan

Shu-Shan He

Zheng Cao

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.

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Chengdu, China

Huang Su