公开(公告)号：US09232376B2

公开(公告)日：2016-01-05

申请号：US13963293

申请日：2013-08-09

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Thomas J Senese ,  Nathanael P Kuehner ,  Todd A Leigh ,  Harish Natarahjan ,  Robert J Novorita ,  Mark Shahaf

IPC: H04W4/20 ,  H04W4/10 ,  H04W76/00 ,  H04M11/06

CPC classification number: H04W4/20 ,  H04M11/06 ,  H04M11/066 ,  H04W4/10 ,  H04W76/45 ,  H04W76/50 ,  H04W84/08

Abstract: A method, a subscriber unit, and a system provide concurrent voice and data systems and methods that “steal bits” from voice frames for low-speed concurrent data. In this manner, concurrent voice and data is supported over protocols that require voice-only in current operation such as Project 25 (P25). The stealing of bits from voice is done in a manner that is transparent and not noticeable to users. The systems and methods enable replication of signaling on the downlink and wireline segments that is replaced on the uplink, encoding of interleaving blocks that extend across multiple Layer 2 voice logical data units (LDUs), flexibility in replacing voice data in LDUs, indication of the availability of the service and an interleaving schedule, notification of upcoming stealing events via signaling, and the like.

Abstract translation: 一种方法，一个用户单元和一个系统提供并发的语音和数据系统和方法，从低速并发数据的语音帧“窃取位”。 以这种方式，通过协议需要并发语音和数据，这些协议仅需要现有操作中的语音（例如项目25（P25））。 从语音窃取位是以透明的方式进行的，而用户不明显。 这些系统和方法使得能够复制下行链路上的信令和在上行链路上被替换的有线线路段，跨越多个第2层语音逻辑数据单元（LDU）的交织块的编码，LDU中替换语音数据的灵活性， 服务的可用性和交织计划，通过信令的即将到来的窃取事件的通知等。

公开(公告)号：US09924451B2

公开(公告)日：2018-03-20

申请号：US14957336

申请日：2015-12-02

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Harish Natarahjan ,  Mohd Syazani b Abdul Aziz ,  Andor Almasi ,  Jesus F. Corretjer

IPC: H04L1/00 ,  H04W48/16

CPC classification number: H04W48/16 ,  G10L19/005 ,  G10L19/24 ,  H04L1/0041 ,  H04L2001/0097

Abstract: A method for communicating half-rate encoded voice frames. The method includes receiving, by a digital signal processor, a half-rate encoded voice frame. The method further includes determining, by the digital signal processor, a network access code. The method further includes encoding, by the digital signal processor, a network identifier based on the network access code. The method further includes scrambling, by the digital signal processor, the network identifier to generate a scrambled network identifier. The method further includes generating, by the digital signal processor, an erasure pattern. The method further includes generating, by the digital signal processor, a half-rate embedded voice code word based on the erasure pattern and the half-rate encoded voice frame. The method further includes generating, by the digital signal processor, a half-rate embedded logical data unit based on the half-rate embedded voice code word and the scrambled network identifier.

公开(公告)号：US20150043539A1

公开(公告)日：2015-02-12

申请号：US13963293

申请日：2013-08-09

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： THOMAS J. SENESE ,  Nathanael P. Kuehner ,  Todd A. Leigh ,  Harish Natarahjan ,  Robert J. Novorita ,  Mark Shahaf

IPC: H04W4/20

CPC classification number: H04W4/20 ,  H04M11/06 ,  H04M11/066 ,  H04W4/10 ,  H04W76/45 ,  H04W76/50 ,  H04W84/08

Abstract: A method, a subscriber unit, and a system provide concurrent voice and data systems and methods that “steal bits” from voice frames for low-speed concurrent data. In this manner, concurrent voice and data is supported over protocols that require voice-only in current operation such as Project 25 (P25). The stealing of bits from voice is done in a manner that is transparent and not noticeable to users. The systems and methods enable replication of signaling on the downlink and wireline segments that is replaced on the uplink, encoding of interleaving blocks that extend across multiple Layer 2 voice logical data units (LDUs), flexibility in replacing voice data in LDUs, indication of the availability of the service and an interleaving schedule, notification of upcoming stealing events via signaling, and the like.

Abstract translation: 一种方法，一个用户单元和一个系统提供并发的语音和数据系统和方法，从低速并发数据的语音帧“窃取位”。 以这种方式，通过协议需要并发语音和数据，这些协议仅需要现有操作中的语音（例如项目25（P25））。 从语音窃取位是以透明的方式进行的，而用户不明显。 这些系统和方法使得能够复制下行链路上的信令和在上行链路上被替换的有线线路段，跨越多个第2层语音逻辑数据单元（LDU）的交织块的编码，LDU中替换语音数据的灵活性， 服务的可用性和交织计划，通过信令的即将到来的窃取事件的通知等。

公开(公告)号：US09420450B2

公开(公告)日：2016-08-16

申请号：US14470062

申请日：2014-08-27

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Harish Natarahjan ,  Anuj Kapoor ,  Daniel J McDonald ,  Michael C Petrie

IPC: H04W8/18 ,  H04L12/18 ,  H04W76/00

CPC classification number: H04W8/186 ,  H04L12/189 ,  H04W4/10 ,  H04W76/45

Abstract: Disclosed herein are methods and systems for talkgroup-state-dependent routing of group data. An embodiment takes the form of a process that includes handling receipt of packet data addressed to a talkgroup by responsively: determining whether the talkgroup currently has an active voice session on a voice channel; if not, then routing the received packet data to the talkgroup on a data channel; and if so, then routing the received packet data to the talkgroup via metadata fields in the voice channel.

Abstract translation: 这里公开了用于组数据的通话组状态相关路由的方法和系统。 一个实施例采取的过程形式包括响应地响应地处理寻址到通话组的分组数据的接收：确定话音组当前在语音信道上是否具有活动语音会话; 如果不是，则将所接收的分组数据路由到数据信道上的通话组; 如果是，则通过语音信道中的元数据字段将接收的分组数据路由到话音组。

公开(公告)号：US09391953B2

公开(公告)日：2016-07-12

申请号：US14338836

申请日：2014-07-23

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Michael C Petrie ,  Harish Natarahjan ,  Thomas J Senese

IPC: H04L29/06

CPC classification number: H04L63/00 ,  H04W12/02 ,  H04W36/06

Abstract: A method of interoperating link layer encrypted (LLE) and non-LLE communications in a radio network include receiving, at a radio controller (RC), a new call request for an LLE call, determining that there are one or more currently active non-LLE calls, and causing a message to be transmitted on each channel carrying one of the one or more currently active non-LLE calls informing mobile stations (MSs) participating in the non-LLE calls that a new LLE call has been or is-to-be granted. MSs participating in one of the non-LLE calls and receiving the message determine from the message or via a call grant obtained via a control channel, whether the new LLE call is of interest, and if so, switching to a channel assigned to the new LLE call and participating in the new LLE call.

Abstract translation: 在无线电网络中互操作链路层加密（LLE）和非LLE通信的方法包括在无线电控制器（RC）处接收用于LLE呼叫的新呼叫请求，确定存在一个或多个当前活动的非 - LLE呼叫，并且导致在携带有一个或多个当前活动的非LLE呼叫中的一个的一个或多个当前活动的非LLE呼叫中发送消息，通知参与非LLE呼叫的移动台（MS）已经或正在进行新的LLE呼叫 被授予 参与非LLE呼叫之一和接收消息的MS从消息或通过经由控制信道获得的呼叫授权确定新LLE呼叫是否感兴趣，如果是，则切换到分配给新的 LLE呼叫并参与新的LLE呼叫。

公开(公告)号：US10089189B2

公开(公告)日：2018-10-02

申请号：US15130498

申请日：2016-04-15

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Harish Natarahjan ,  Graeme Peter Johnson ,  Daniel J. McDonald

IPC: G06F11/14 ,  H04W76/15 ,  H04L1/00 ,  H04W76/02

Abstract: Devices and methods for receiving a data file in a communication system. In one embodiment, the wireless communication device includes a transceiver, a memory, and an electronic processor. The transceiver is configured to send and receive data over a wireless communication network. The electronic processor is electrically coupled to the transceiver and the memory and configured to receive, with the transceiver, a first seed, a sequence of blocks, and a subsequent seed, cause the memory to save the sequence of blocks in the memory, and determine whether the subsequent seed is aligned with the first seed. When the subsequent seed is not aligned with the first seed, the electronic processor is configured to cause the memory to delete the sequence of blocks. When the subsequent seed is aligned with the first seed, the electronic processor is configured to cause the memory to maintain the sequence of blocks.

公开(公告)号：US20170300389A1

公开(公告)日：2017-10-19

申请号：US15130498

申请日：2016-04-15

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Harish Natarahjan ,  Graeme Peter Johnson ,  Daniel J. McDonald

IPC: G06F11/14 ,  H04L1/00 ,  H04W76/02

CPC classification number: G06F11/1464 ,  G06F2201/84 ,  H04L1/0045 ,  H04L1/0048 ,  H04L1/0056 ,  H04L1/0075 ,  H04W76/15

Abstract: Devices and methods for receiving a data file in a communication system. In one embodiment, the wireless communication device includes a transceiver, a memory, and an electronic processor. The transceiver is configured to send and receive data over a wireless communication network. The electronic processor is electrically coupled to the transceiver and the memory and configured to receive, with the transceiver, a first seed, a sequence of blocks, and a subsequent seed, cause the memory to save the sequence of blocks in the memory, and determine whether the subsequent seed is aligned with the first seed. When the subsequent seed is not aligned with the first seed, the electronic processor is configured to cause the memory to delete the sequence of blocks. When the subsequent seed is aligned with the first seed, the electronic processor is configured to cause the memory to maintain the sequence of blocks.

公开(公告)号：US20170164271A1

公开(公告)日：2017-06-08

申请号：US14957336

申请日：2015-12-02

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Harish Natarahjan ,  Mohd Syazani b Abdul Aziz ,  Andor Almasi ,  Jesus F. Corretjer

IPC: H04W48/16 ,  H04L1/00

CPC classification number: H04W48/16 ,  G10L19/005 ,  G10L19/24 ,  H04L1/0041 ,  H04L2001/0097

Abstract: A method for communicating half-rate encoded voice frames. The method includes receiving, by a digital signal processor, a half-rate encoded voice frame. The method further includes determining, by the digital signal processor, a network access code. The method further includes encoding, by the digital signal processor, a network identifier based on the network access code. The method further includes scrambling, by the digital signal processor, the network identifier to generate a scrambled network identifier. The method further includes generating, by the digital signal processor, an erasure pattern. The method further includes generating, by the digital signal processor, a half-rate embedded voice code word based on the erasure pattern and the half-rate encoded voice frame. The method further includes generating, by the digital signal processor, a half-rate embedded logical data unit based on the half-rate embedded voice code word and the scrambled network identifier.

公开(公告)号：US09351157B2

公开(公告)日：2016-05-24

申请号：US14056719

申请日：2013-10-17

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Anuj Kapoor ,  Daniel J. McDonald ,  Harish Natarahjan ,  Yunhai Yang

IPC: H04W12/02 ,  H04K1/00 ,  H04L9/14 ,  H04W88/18

CPC classification number: H04W12/02 ,  H04K1/00 ,  H04L9/14 ,  H04W88/181

Abstract: Reduction of audio truncation when transcoding speech data from one coding format to another. Embodiments include receiving packets of a first communication session containing first encrypted speech data encoded according to a vocoder of a first type and encrypted using an encryption protocol, and containing a first encryption protocol identification information distributed among the received packets. Further embodiments include extracting the first encryption protocol identification information from the received packets and processing the received packets based on the first encryption identification information. Embodiments include transmitting one or more voice header packets containing a second encryption protocol identification information in a second communication session as well as transmitting packets in the second communication session containing second encrypted speech data encoded according to a vocoder of a second type.

Abstract translation: 将语音数据从一种编码格式转码到另一种编码格式时，减少音频截断。 实施例包括接收包含根据第一类型的声码器编码并且使用加密协议加密的第一加密语音数据的第一通信会话的分组，并且包含分布在接收分组中的第一加密协议标识信息。 另外的实施例包括从接收到的分组提取第一加密协议标识信息，并且基于第一加密标识信息处理接收到的分组。 实施例包括在第二通信会话中发送包含第二加密协议标识信息的一个或多个语音报头分组，以及在第二通信会话中发送包含根据第二类型的声码器编码的第二加密语音数据的分组。

公开(公告)号：US08824681B2

公开(公告)日：2014-09-02

申请号：US13671744

申请日：2012-11-08

Applicant: Motorola Solutions, Inc.

Inventor： Thomas J. Senese ,  Chris A. Kruegel ,  Michael C. Petrie ,  Harish Natarahjan

IPC: H04K1/00 ,  H04L29/06 ,  H04W12/08 ,  H04W12/02

CPC classification number: H04L63/162 ,  H04L63/04 ,  H04W12/02 ,  H04W12/08

Abstract: Methods and systems for LLE encrypting and decrypting voice message streams (VMSs) already supporting eTe encryption are disclosed. In one example, LLE and eTe encryption initialization vectors (EIVs) are interleaved such that an LLE EIV retrieved from one of a header and a data unit is used to LLE decrypt both the header or data unit and a subsequent data unit. A recovered eTe EIV is used to eTe decrypt voice payloads in one or more subsequent data units. In another example, a base station dynamically LLE encrypts a VMS already supporting eTe encrypting by determining whether a received VMS is eTe encrypted, and ii it is not generating a new LLE EIV, and if it is, re-using the pre-existing eTe EIV for LLE encryption. The LLE encrypted (and perhaps eTe encrypted) VMS is then sent over the air to one or more mobile stations.

Abstract translation: 公开了已经支持eTe加密的LLE加密和解密语音消息流（VMS）的方法和系统。 在一个示例中，LLE和eTe加密初始化向量（EIV）被交织，使得从报头和数据单元中的一个检索的LLE EIV被用于LLE解密报头或数据单元以及随后的数据单元。 恢复的eTe EIV用于eTe在一个或多个后续数据单元中解密语音有效载荷。 在另一个例子中，基站动态LLE通过确定所接收的VMS是否被e加密来加密已经支持eTe加密的VMS，并且ii它不产生新的LLE EIV，如果是，则重新使用预先存在的eTe EIV用于LLE加密。 然后将LLE加密（以及eTe加密的）VMS通过空中发送到一个或多个移动台。