公开(公告)号：US09232522B2

公开(公告)日：2016-01-05

申请号：US13946464

申请日：2013-07-19

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Hun Weng Khoo ,  Thomas B Bohn ,  Yueh Ching Chung ,  David G Wiatrowski

IPC: H04J3/00 ,  H04W72/04 ,  H04L5/14 ,  H04B7/26 ,  H04W84/08

CPC classification number: H04W72/0446 ,  H04B7/2656 ,  H04L5/14 ,  H04W84/08

Abstract: A method for enabling full duplex direct mode calls between radios in an N:1 slotting ratio TDMA radio system includes detecting a request for a full duplex direct mode call at a first radio, transmitting in a particular slot of a first recurring time slot of N recurring time slots on a first single frequency one of a call request and a call header identifying the call as a full duplex call. Subsequently transmitting, by the first radio, during a plurality of subsequent first recurring time slots, outbound voice and/or data transmissions. And receiving, during a plurality of second recurring time slots of the N recurring time slots, each second recurring timeslot positioned immediately adjacent a respective first recurring time slot in an interleaved manner, inbound voice and/or data transmissions from the second radio and playing back the inbound voice and/or data transmission at the first radio.

Abstract translation: 一种用于在N：1时隙率TDMA无线电系统中的无线电之间实现全双工直接模式呼叫的方法包括在第一无线电中检测对全双工直接模式呼叫的请求，在N个第一重复时隙的特定时隙中进行发送 呼叫请求中的一个频率上的经常性时隙和将该呼叫标识为全双工呼叫的呼叫头。 随后由第一无线电装置在多个随后的第一循环时隙中发送出站语音和/或数据传输。 并且在N次循环时隙的多个第二循环时隙期间，以交织的方式接收与相应的第一循环时隙紧邻的每个第二循环时隙，从第二无线电接收入站语音和/或数据传输 第一个收音机的入站语音和/或数据传输。

公开(公告)号：US09178987B2

公开(公告)日：2015-11-03

申请号：US14014758

申请日：2013-08-30

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： David G Wiatrowski ,  Thomas B Bohn ,  Dipendra M Chowdhary

IPC: H04L12/16 ,  H04M3/20 ,  H04L12/851 ,  H04W76/04 ,  H04W76/06

CPC classification number: H04M3/20 ,  H04L47/245 ,  H04L47/32 ,  H04W4/06 ,  H04W76/28 ,  H04W76/36

Abstract: A system and method for interrupting a transmitting device during a call. In the system, calls are transmitted from a first device on a communication channel as a series of channel frames. At predetermined times during the transmission, the transmitting device is configured to drop channel frames, resulting in open channel frame periods where the transmitting device is not transmitting on the communication channel. During these open channel frame periods, the transmitting device is also configured to switch to a receiving mode. Other devices in the system are capable of switching into a transmitting mode during the open channel frame periods and, when applicable, sending an interrupt request on the communication channel to the transmitting device in order to request access to the channel.

Abstract translation: 一种用于在呼叫期间中断发送设备的系统和方法。 在系统中，作为一系列信道帧，从通信信道上的第一设备发送呼叫。 在发送期间的预定时间，发送设备被配置为丢弃信道帧，导致发送设备在通信信道上不发送的开放信道帧周期。 在这些开放频道帧周期期间，发送装置还被配置为切换到接收模式。 系统中的其他设备能够在开放的信道帧周期期间切换成发送模式，并且在适用的情况下，在通信信道上向发送设备发送中断请求，以便请求接入信道。

公开(公告)号：US09231693B2

公开(公告)日：2016-01-05

申请号：US13946145

申请日：2013-07-19

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Hun Weng Khoo ,  Thomas B Bohn ,  Yueh Ching Chung ,  David G Wiatrowski

IPC: H04J3/08 ,  H04B7/212 ,  H04L5/14 ,  H04W72/12 ,  H04B7/155 ,  H04W84/04

CPC classification number: H04B7/2123 ,  H04B7/15542 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/1263 ,  H04W84/047

Abstract: A method for enabling full duplex individual calls in repeater mode between two subscriber units (SUs) in a N:1 slotting ratio time division multiple access (TDMA) radio system includes receiving a request for a full duplex individual call from a first SU identifying a second SU as a target of the call. Determining to grant the request and subsequently assigning a first time slot of the N time slots on a first single frequency for one of inbound and outbound transmissions for the call between an assigned second repeater and the first SU and a second time slot on the first single frequency for the other of inbound and outbound transmissions for the call between the assigned second repeater and the first SU. Further, a grant message is transmitted to the first SU indicating the assigned first single frequency and assigned first and second time slots.

Abstract translation: 一种用于在N：1时隙率时分多址（TDMA）无线电系统中的两个用户单元（SU）之间以中继器模式启用全双工个性呼叫的方法包括从第一SU识别全双工个人呼叫的请求， 第二个SU作为呼叫的目标。 确定授权所述请求并且随后在所分配的第二中继器和所述第一SU之间的所述呼叫的入站和出站传输中的一个的第一单个频率上分配所述N个时隙的第一时隙，并且在所述第一单个频率上为所述第一单个频率分配所述N个时隙的第一时隙 用于分配的第二中继器和第一SU之间的呼叫的入站和出站传输中的另一个的频率。 此外，授权消息被发送到指示所分配的第一单个频率并分配的第一和第二时隙的第一SU。

公开(公告)号：US10575321B1

公开(公告)日：2020-02-25

申请号：US16123094

申请日：2018-09-06

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： David G Wiatrowski ,  Kok Seng Ang ,  Dipendra M Chowdhary

IPC: H04W72/12 ,  H04W16/10 ,  H04W16/14

Abstract: A process for connecting a user equipment to a radio access network in which communication frequencies are dynamically allocated from a shared radio spectrum. In operation, the user equipment maintains a radio frequency scan list that indicates a prioritized order with which a plurality of radio frequencies selected from the shared radio spectrum are to be scanned. The user equipment scans the radio frequencies in accordance with the prioritized order that is indicated in the radio frequency scan list and selects a target radio frequency from the radio frequencies based on the scanning of the radio frequencies. The target radio frequency corresponds to a frequency band that is dynamically allocated from the shared radio spectrum to a radio access network associated with the user equipment. The user equipment then connects to the radio access network using the frequency band corresponding to the target radio frequency.

公开(公告)号：US09253773B2

公开(公告)日：2016-02-02

申请号：US14013444

申请日：2013-08-29

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Hun Weng Khoo ,  Yueh Ching Chung ,  David G Wiatrowski

IPC: H04J1/00 ,  H04W72/04 ,  H04W4/08 ,  H04B7/26 ,  H04J3/22 ,  H04L12/16 ,  H04L12/66

CPC classification number: H04W72/0446 ,  H04B7/2656 ,  H04J3/22 ,  H04L12/16 ,  H04L12/66 ,  H04W4/08

Abstract: A wireless method, apparatus, and system provide simultaneous transacting of voice and data on adjacent timeslots through a combination of channel access rules and sacrificing small audio portions when required. This includes wirelessly operating on at least two timeslots which are adjacent to one another, operating voice on a first timeslot of the at least two timeslots and monitoring a second timeslot of the at least two timeslots for data, and, responsive to a data transmission request and receiving voice on the first timeslot, discarding a portion of the voice in the first timeslot to provide a larger guard time for programming between the first timeslot and the second timeslot and transmitting data in the second timeslot based on the data transmission request.

Abstract translation: 无线方法，装置和系统通过信道访问规则的组合并且在需要时牺牲小音频部分来提供在相邻时隙上的语音和数据的同时交互。 这包括在彼此相邻的至少两个时隙上无线操作，在至少两个时隙的第一时隙上操作语音，并且监视用于数据的至少两个时隙的第二时隙，并且响应于数据传输请求 以及在第一时隙上接收语音，在第一时隙中丢弃一部分语音，以便在第一时隙和第二时隙之间提供更大的编程保护时间，并且基于数据传输请求在第二时隙中发送数据。