公开(公告)号：US09503139B2

公开(公告)日：2016-11-22

申请号：US14909645

申请日：2013-08-06

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Li Poh Chen ,  Choong Foo Boon ,  Hun Weng Khoo ,  Wai Kean Tham ,  Yew Leong Wong ,  Wei-Gang Hu

IPC: H04B1/10 ,  H04W72/04

CPC classification number: H04B1/109 ,  H04B1/1036 ,  H04W72/0406

Abstract: A very-low intermediate frequency (VLIF) receiver and a method of controlling a VLIF receiver. The method comprises receiving a first signal, the first signal including a first adjacent channel interferer, and detecting first interference from the first adjacent channel interferer. The method further comprises, subsequent to receiving the first signal, receiving a second signal, the second signal including a second adjacent channel interferer, and detecting second interference from the second adjacent channel interferer. Furthermore, subsequent to detecting the second interference, the VLIF receiver is configured to avoid the first interference while receiving a third signal.

Abstract translation: 一种非常低的中频（VLIF）接收机和一种控制VLIF接收机的方法。 所述方法包括：接收第一信号，所述第一信号包括第一相邻信道干扰信号，以及检测来自所述第一相邻信道干扰信号的第一干扰。 所述方法还包括：在接收到所述第一信号之后，接收第二信号，所述第二信号包括第二相邻信道干扰源，以及检测来自所述第二相邻信道干扰源的第二干扰。 此外，在检测到第二干扰之后，VLIF接收机被配置为在接收第三信号的同时避免第一干扰。

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：US20150023226A1

公开(公告)日：2015-01-22

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. Watrowski

IPC: H04B7/212 ,  H04L5/14

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：US09578578B2

公开(公告)日：2017-02-21

申请号：US14106530

申请日：2013-12-13

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Hun Weng Khoo ,  Dipendra M Chowdhary ,  Yueh Ching Chung ,  Chebron Padmanaba ,  Satyanarayan R Panpaliya ,  Badarinath Patibandla

IPC: H04W36/30 ,  H04J3/16 ,  H04W56/00 ,  H04W36/00 ,  H04W36/02 ,  H04W36/36

CPC classification number: H04W36/30 ,  H04J3/16 ,  H04W36/0061 ,  H04W36/026 ,  H04W36/36 ,  H04W56/00

Abstract: A radio receives audio information on a first traffic channel in a radio frequency (RF) site. The radio receives, on the first traffic channel, an announcement of alternative traffic channels on which the audio information is also transmitted in adjacent RF sites. The radio determines signal strength indicators for the alternative traffic channels in the adjacent RF sites while continuing to receive the audio information on the first traffic channel. The radio determines that a signal strength associated with the first traffic channel is below a first threshold. Based on the determination and as a function of the scanning, the radio roams to a second traffic channel, selected from the alternative traffic channels, in an adjacent RF site where a signal strength associated with the second traffic channel is above a second threshold. The radio receives the audio information via the second traffic channel.

Abstract translation: 无线电接收机在射频（RF）站点的第一业务信道上接收音频信息。 无线电接收机在第一业务信道上接收在相邻RF站点上发送音频信息的备选业务信道的通告。 无线电装置确定相邻RF站点中替代业务信道的信号强度指示符，同时继续在第一业务信道上接收音频信息。 无线电确定与第一业务信道相关联的信号强度低于第一阈值。 基于扫描的确定和功能，无线电漫游到相邻RF站点中从替代业务信道中选择的第二业务信道，其中与第二业务信道相关联的信号强度高于第二阈值。 无线电通过第二业务信道接收音频信息。

公开(公告)号：US09473882B2

公开(公告)日：2016-10-18

申请号：US14305345

申请日：2014-06-16

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Hun Weng Khoo ,  Dipendra M Chowdhary ,  Yueh Ching Chung ,  Xiao-Yu Li

IPC: H04W4/02 ,  H04W72/04

CPC classification number: H04W4/02 ,  H04W72/0406 ,  H04W72/0446

Abstract: A method for enhanced data throughput on a windowed revert repeater channel in a radio communication system includes requesting, by a subscriber unit and via a control channel of the radio communication system, a window in which to transmit data updates on the windowed revert repeater channel of the radio communication system; receiving, by the subscriber unit and via the control channel, an assigned window on the windowed revert repeater channel for the data updates; monitoring, by the subscriber unit, the control channel repeater and determining a timing of the windowed revert repeater channel based on the monitoring; and reverting to the windowed revert repeater channel based on the timing and the assigned window, and transmitting the data updates during the assigned window. A subscriber unit and radio communication system are also disclosed.

Abstract translation: 一种用于在无线电通信系统中的加窗恢复中继器信道上增强数据吞吐量的方法，包括由用户单元和经由无线电通信系统的控制信道请求在其上发送数据更新的窗口，窗口恢复中继器信道 无线电通信系统; 由用户单元和经由控制信道接收用于数据更新的加窗恢复中继器信道上的分配窗口; 由所述用户单元监视所述控制信道中继器，并且基于所述监视来确定所述加窗的反转中继器信道的定时; 并基于定时和分配的窗口恢复到窗口恢复中继器信道，并在分配的窗口期间发送数据更新。 还公开了用户单元和无线电通信系统。

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。

公开(公告)号：US09271257B2

公开(公告)日：2016-02-23

申请号：US14106622

申请日：2013-12-13

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Yueh Ching Chung ,  Thomas B Bohn ,  Dipendra M Chowdhary ,  Hun Weng Khoo ,  Satyanarayan R Panpaliya ,  Teik Choon Teh

IPC: H04W4/08 ,  H04W4/10 ,  H04W64/00 ,  H04W76/00 ,  H04W84/08

CPC classification number: H04W64/00 ,  H04W4/08 ,  H04W76/45 ,  H04W84/08

Abstract: A radio affiliates, via a first channel, with at least one talk group the radio is interested in receiving calls from, sends a request to transmit location information on a separate revert channel, and receives a first grant time period to transmit location information on a particular revert channel. The radio moves at substantially the first grant time period, away from the first channel to the revert channel to transmit location information or request a second grant time period on the revert channel, receives an announcement on the revert channel during the first grant time period that a call of interest associated with the at least one talk group started while the radio was on the revert channel, determines an assigned traffic channel for the call of interest, and switches from the revert channel to the assigned traffic channel in order to receive the call of interest.

Abstract translation: 无线电附属机构经由第一信道与无线电有兴趣接收呼叫的至少一个通话组发送在单独的还原信道上发送位置信息的请求，并且接收第一授权时间段以在 特定还原通道。 无线电基本上在第一授权时间段移动，远离第一信道到恢复信道以发送位置信息，或在还原信道上请求第二授权时间段，在第一授权时间周期期间在恢复信道上接收公告， 当无线电在恢复信道上时，与所述至少一个通话组相关联的兴趣呼叫确定用于所述感兴趣的呼叫的所分配的业务信道，并且从恢复信道切换到所分配的业务信道，以便接收呼叫 出于兴趣。

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。