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：US20150173042A1

公开(公告)日：2015-06-18

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: H04W72/00 ,  H04W72/04 ,  H04W64/00 ,  H04W4/08

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：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：US20150312781A1

公开(公告)日：2015-10-29

申请号：US14264821

申请日：2014-04-29

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： DIPENDRA M. CHOWDHARY ,  JOHN P. BELMONTE ,  THOMAS B. BOHN ,  SATYANARAYAN R. PANPALIYA ,  BADARINATH PATIBANDLA

IPC: H04W24/04 ,  H04W74/08 ,  H04W28/02

CPC classification number: H04W24/04 ,  H04W28/0236 ,  H04W28/0242 ,  H04W48/02 ,  H04W74/0833

Abstract: A radio controller monitors a radio channel for a first period of time and determines a first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during that time. Responsive to determining that the first indication is above a predetermined threshold indicative of an interference condition, causing an instruction to be broadcast identifying a subset of subscriber devices allowed transmitting random access requests on the radio channel. The radio controller monitors the radio channel for a second period of time and determines a second indication during that time. If the second indication is an improvement over the first indication, the radio controller determines that the interference condition is caused by the mass random access event.

Abstract translation: 无线电控制器在第一时间段内监测无线电信道，并且确定接收到的信号的第一指示而不检测同步或者检测到同步，但在该时间期间失败的纠错。 响应于确定第一指示高于指示干扰条件的预定阈值，引起广播指令，标识允许在无线电信道上发送随机接入请求的订户设备的子集。 无线电控制器在第二段时间内监视无线电信道，并在该时间确定第二指示。 如果第二指示是对第一指示的改进，则无线电控制器确定干扰条件是由大规模随机接入事件引起的。

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.