公开(公告)号：US20170290032A1

公开(公告)日：2017-10-05

申请号：US15507269

申请日：2014-11-13

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： KANG-KAI ZHAO ,  DA-JUN CHEN ,  YONG LI ,  YONG TIAN ,  WU YANG

IPC: H04W72/12 ,  H04W4/02 ,  H04W4/10

CPC classification number: H04W72/121 ,  H04J3/1694 ,  H04W4/02 ,  H04W4/029 ,  H04W4/10 ,  H04W84/08

Abstract: A subscriber device joins a talk group and receives, via a control channel, parameters defining a plurality of assigned downlink data transmission periods associated with the talk group on a downlink short data channel. The subscriber device determines from the parameters when a next downlink short data transmission for devices in the talk group will be transmitted on the downlink short data channel. The subscriber device switches to the downlink short data channel during the next transmission period.

公开(公告)号：US20170289777A1

公开(公告)日：2017-10-05

申请号：US15507257

申请日：2014-10-08

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： KANG-KAI ZHAO ,  HONG-XIA WANG ,  LI WANG ,  YU ZHOU

IPC: H04W4/10 ,  H04W68/00

CPC classification number: H04W4/10 ,  H04W68/005 ,  H04W84/08

Abstract: Disclosed herein are methods and systems for implementing a self-managed control channel. A mobile radio is a member of a talkgroup. The mobile radio has first and second receivers, and a preconfigured channel list that includes a control channel and multiple voice channels. The mobile radio monitors which voice channels are busy, and monitors the control channel using the first receiver. The mobile radio detects a session-start event. If that event is a session-start command, the mobile radio selects an idle voice channel and transmits, via the control channel, a session-start notification identifying the talkgroup and specifying the selected voice channel. If that event is receipt, via the control channel, of a session-start notification identifying the talkgroup and specifying a voice channel, the mobile radio determines whether the second receiver is tuned to that voice channel and, if not, tunes the second receiver to that voice channel.

公开(公告)号：US20180063872A1

公开(公告)日：2018-03-01

申请号：US15553242

申请日：2015-05-08

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： YONG TIAN ,  LI-YA MI ,  ZHONG WEI ,  KANG-KAI ZHAO

IPC: H04W76/00 ,  H04M3/42 ,  H04M3/56 ,  H04W4/16

Abstract: Missed voice stream portions are replayed at a late entry subscriber device (SD) in a wireless radio network. The SD joins a voice call on a radio channel via a base station and detects that it is late to the call. The SD continues to receive a remaining portion of the call and plays back the portion of the call. The SD detects an end of the voice call, and (i) transmits a request message including an indication of a first duration of the portion of the call received or (ii) detects a similar message from another SD. The SD then receives an indication of a total duration of the voice call and calculates a third duration as a function of the total duration and the first duration. The SD receives and plays back the missed portion of the call for the third duration.

公开(公告)号：US20180288599A1

公开(公告)日：2018-10-04

申请号：US15753479

申请日：2015-12-22

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： KANG-KAI ZHAO ,  DA-JUN CHEN ,  XUN FEI ,  WEN FENG ,  YA-HUI GONG ,  YONG TIAN ,  DONG ZHAO

IPC: H04W4/90 ,  H04W4/021 ,  H04W4/80 ,  H04W8/00 ,  H04W76/14 ,  H04W76/50 ,  H04W76/30 ,  G08B27/00

CPC classification number: H04W4/90 ,  G08B27/001 ,  H04W4/021 ,  H04W4/023 ,  H04W4/80 ,  H04W8/005 ,  H04W48/04 ,  H04W76/10 ,  H04W76/14 ,  H04W76/30 ,  H04W76/50 ,  H04W92/18

Abstract: Improved incident device pairing for safety and security of first responders entering an incident scene area associated with an incident is provided. An electronic computing device (ECD) transmits a request to scan for nearby pairable mobile computing devices to each of a plurality of mobile computing devices (MCDs) associated with the incident. The ECD receives identity information from each MCDs setting forth identities of other MCDs reachable via a short-range wireless communication link. The ECD accesses equipment mapping information that sets forth equipment associated with the MCD or user thereof and identifies a plurality of pairs of MCDs for entering the incident scene area as a function of the identity and equipment mapping information. The ECD then transmits a short-range pairing instruction to each MCD identifying the other mobile computing device in the pair and instructing the MCDs to pair with one another via their short-range wireless communication link.

公开(公告)号：US20170303318A1

公开(公告)日：2017-10-19

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: 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.