公开(公告)号：US09961703B2

公开(公告)日：2018-05-01

申请号：US15507343

申请日：2014-12-24

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Kang-Kai Zhao ,  Da-Jun Chen ,  Ya-Hui Gong ,  Yi Tang ,  Yong Tian ,  Wu Yang ,  Dong Zhao

IPC: H04B7/00 ,  H04W76/00 ,  H04W4/08

CPC classification number: H04W76/45 ,  H04W4/08 ,  H04W4/10

Abstract: Disclosed herein are methods and systems for patching direct-mode talkgroups among dual-watch mobile radios. A mobile radio has first and second receivers, and is in a first talkgroup having a first channel. The mobile radio resides the first receiver on the first channel, and detects either a first patch event or a second patch event. The first patch event is an instruction for a first-channel session. The second patch event is an invitation for a second-channel session. Upon detecting the first patch event, the mobile radio transmits an invitation on the first channel and also on one or more other channels respectively associated with one or more other talkgroups, directing all recipients to the first channel. If the mobile radio detects the second patch event, the mobile radio resides the second receiver on the second channel.

公开(公告)号：US09686657B1

公开(公告)日：2017-06-20

申请号：US15320000

申请日：2014-07-10

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Kang-Kai Zhao ,  Da-Jun Chen ,  Yong Li ,  Yong Tian ,  Wu Yang

IPC: H04W76/00 ,  H04W4/10 ,  H04W74/08 ,  H04W84/08

CPC classification number: H04W4/10 ,  H04W74/0808 ,  H04W84/08

Abstract: A mobile radio has selectable transmit and receive channels, and is in a talkgroup that has a primary channel and multiple auxiliary channels. The mobile radio receives a broadcast-start command, and responsively selects its transmit channel to be the primary channel (if available) or an inactive auxiliary channel (if the primary channel is not available). The mobile radio receives user media via its user interface, and transmits that received user media on its selected transmit channel. The mobile radio scans for an auxiliary channel transitioning from inactive to active. Responsive to detecting such a transition, the mobile radio selects that auxiliary channel as its receive channel. The mobile radio mixes inbound media received on its selected receive channel with user media received via its user interface, and transmits the mixed media on its selected transmit channel.