公开(公告)号：US20200146009A1

公开(公告)日：2020-05-07

申请号：US16181422

申请日：2018-11-06

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： DAVID G. WIATROWSKI ,  THOMAS B. BOHN ,  DIPENDRA M. CHOWDHARY

IPC: H04W72/04

Abstract: A method and device for zero configuration direct fallback communication is provided. In one aspect a method comprises selecting a channel in a fallback radio band based on at least a portion of at least one system operating parameter for a primary radio band. The method further comprises switching to the selected channel in the fallback radio band. The method also comprises communicating over the selected channel in the fallback radio band.

公开(公告)号：US20150023227A1

公开(公告)日：2015-01-22

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: H04W72/04 ,  H04L5/14

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：US20160057782A1

公开(公告)日：2016-02-25

申请号：US14933713

申请日：2015-11-05

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： SATYANARAYAN R. PANPALIYA ,  DIPENDRA M. CHOWDHARY ,  SANJAYKUMAR S. KARPOOR ,  BADARINATH PATIBANDLA ,  DAVID G. WIATROWSKI

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12 ,  H04W76/02

CPC classification number: H04W74/0816 ,  H04W72/1242 ,  H04W72/14 ,  H04W76/14 ,  H04W76/18 ,  H04W92/18

Abstract: A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.

Abstract translation: 用于在数字常规直接模式中解决呼叫冲突的过程包括监视直接模式通信信道用于来自多个直接模式无线电中的其他直接模式无线电的传输。 响应于检测到新的呼叫请求：识别在直接模式信道上要发送的最后一个无线电，发送用于由最后一个直接模式无线电接收的新呼叫请求进行发送，监视来自最后一个无线电的响应的直接模式信道 发送，并且如果从最后的无线电接收到授予新的呼叫请求的呼叫许可发送，则在直接模式通信信道上发起新的直接模式呼叫。 如果未接收到呼叫授权，则至少暂时禁止启动新的直接模式呼叫。

公开(公告)号：US20140105194A1

公开(公告)日：2014-04-17

申请号：US13650882

申请日：2012-10-12

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： DAVID G. WIATROWSKI ,  THOMAS B. BOHN ,  HARRY C. MOORE

IPC: H04W72/04 ,  H04W56/00

CPC classification number: H04W76/14 ,  H04B7/2643 ,  H04W76/45

Abstract: A method and device for sharing synchronized direct mode time division multiple access (TDMA) timeslots among a plurality of direct mode radios includes monitoring, by a first direct mode radio, other radios' usage of a plurality of available timeslots on a direct mode radio frequency (RF) and, for each received new transmission, storing an indication of the timeslot used by the new transmission and storing a system partitioning identifier associated with the new transmission. Dynamically determining, by the first radio and as a function of the monitoring, a first preferred transmit timeslot determined to be less likely to interfere with the other direct mode radios. Responsive to detecting a request to transmit a new direct mode call, first determining if the first preferred transmit timeslot is available, and if so, transmitting the new call in the first preferred transmit timeslot on the direct mode radio frequency.

Abstract translation: 用于在多个直接模式无线电中共享同步直接模式时分多址（TDMA）时隙的方法和装置包括通过第一直接模式无线电监视在直接模式射频上的其他无线电对多个可用时隙的使用 （RF），并且对于每个接收的新传输，存储新传输使用的时隙的指示并存储与新传输相关联的系统分区标识符。 通过第一无线电和作为监视的功能来动态地确定被确定为不太可能干扰其他直接模式无线电的第一优选发射时隙。 响应于检测发送新的直接模式呼叫的请求，首先确定第一优选发送时隙是否可用，如果是，则在直接模式射频上在第一优选发送时隙中发送新呼叫。

公开(公告)号：US20140228045A1

公开(公告)日：2014-08-14

申请号：US13766875

申请日：2013-02-14

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： JOHN P. BELMONTE ,  DAVID G. WIATROWSKI

IPC: H04W4/02

CPC classification number: H04W4/02 ,  H04W4/021 ,  H04W4/18

Abstract: A process for consolidating location-dependent information in a two-way radio system includes determining a geographic location of each subscriber unit in a group of subscriber units active within a radio frequency (RF) coverage area of a base station (BS), determining a single representative geographic location for the group of subscriber units based on their geographic locations, requesting location-dependent information from a content provider using the representative geographic location, and causing the location-dependent information to be broadcast within the RF coverage area.

Abstract translation: 用于在双向无线电系统中整合位置相关信息的过程包括确定在基站（BS）的射频（RF）覆盖区域内有效的用户单元组中的每个用户单元的地理位置，确定 基于其地理位置的用户单元组的单个代表性地理位置，使用代表性地理位置从内容提供商请求与位置相关的信息，并且使得所述位置相关信息在RF覆盖区域内广播。

公开(公告)号：US20150063326A1

公开(公告)日：2015-03-05

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: H04W72/04 ,  H04W4/08

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。

公开(公告)号：US20140254458A1

公开(公告)日：2014-09-11

申请号：US13793621

申请日：2013-03-11

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： SATYANARAYAN R. PANPALIYA ,  DIPENDRA M. CHOWDHARY ,  SANJAYKUMAR S. KARPOOR ,  BADARINATH PATIBANDLA ,  DAVID G. WIATROWSKI

IPC: H04W72/00

CPC classification number: H04W74/0816 ,  H04W72/1242 ,  H04W72/14 ,  H04W76/14 ,  H04W76/18 ,  H04W92/18

Abstract: A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.

Abstract translation: 用于在数字常规直接模式中解决呼叫冲突的过程包括监视直接模式通信信道用于来自多个直接模式无线电中的其他直接模式无线电的传输。 响应于检测到新的呼叫请求：识别在直接模式信道上要发送的最后一个无线电，发送用于由最后一个直接模式无线电接收的新呼叫请求进行发送，监视来自最后一个无线电的响应的直接模式信道 发送，并且如果从最后的无线电接收到授予新的呼叫请求的呼叫许可发送，则在直接模式通信信道上发起新的直接模式呼叫。 如果未接收到呼叫授权，则至少暂时禁止启动新的直接模式呼叫。

公开(公告)号：US20140016514A1

公开(公告)日：2014-01-16

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: H04M3/20

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：US20130246659A1

公开(公告)日：2013-09-19

申请号：US13893782

申请日：2013-05-14

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： DIPENDRA M. CHOWDHARY ,  THOMAS B. BOHN ,  TIANFANG LIU ,  DAVID G. WIATROWSKI

IPC: H04L29/06

CPC classification number: H04L69/04 ,  G01S5/0018 ,  G01S5/0284

Abstract: Disclosed are methods and systems for compressing location data of a radio for over-the-air transmission. A method includes obtaining raw latitude and raw longitude coordinates reflecting a current location of the client device, the raw latitude coordinate represented by x number of bits and the raw longitude coordinate represented by y number of bits. The raw latitude coordinate is truncated by removing n number of most significant bits from the raw latitude coordinate to create a compressed latitude coordinate. The raw longitude coordinate is truncated by removing m number of most significant bits from the raw longitude coordinate to create a compressed longitude coordinate, where m varies as a function of the value of the raw latitude coordinate. The compressed longitude and compressed latitude coordinates are then transmitted to another network device for decompression and use as an indication of the client device's absolute location.

Abstract translation: 公开了用于压缩用于无线电传输的无线电的位置数据的方法和系统。 一种方法包括获得反映客户端设备的当前位置的原始纬度和原始经度坐标，由x位数表示的原始纬度坐标和由y位数表示的原始经度坐标。 通过从原始纬度坐标中移除n个最高有效位来创建压缩纬度坐标，可以截断原始纬度坐标。 通过从原始经度坐标中移除m个最高有效位以创建压缩经度坐标来截断原始经度坐标，其中m根据原始纬度坐标的值而变化。 压缩经度和压缩纬度坐标然后被发送到另一个网络设备进行解压缩并用作客户端设备绝对位置的指示。

公开(公告)号：US20140254457A1

公开(公告)日：2014-09-11

申请号：US13793244

申请日：2013-03-11

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： SATYANARAYAN R. PANPALIYA ,  DIPENDRA M. CHOWDHARY ,  SANJAYKUMAR S. KARPOOR ,  BADARINATH PATIBANDLA ,  DAVID G. WIATROWSKI

IPC: H04W72/00

CPC classification number: H04W72/005 ,  H04W76/14 ,  H04W76/18 ,  H04W76/45 ,  H04W84/22

Abstract: A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.