公开(公告)号：US20020097718A1

公开(公告)日：2002-07-25

申请号：US09728360

申请日：2000-12-01

Applicant: MOTOROLA, INC.

Inventor： Michael Korus ,  Daniel J. McDonald ,  Mario DeRango ,  George Popovich ,  John W. Maher

IPC: H04L012/28 ,  H04L012/56 ,  H04J003/26

CPC classification number: H04L61/2069 ,  H04L12/1854 ,  H04L29/12292 ,  H04L45/04 ,  H04L45/48 ,  H04L47/14 ,  H04L47/15 ,  H04L47/70 ,  H04L47/783 ,  H04L47/806 ,  H04L47/822 ,  H04L47/824 ,  H04W8/26 ,  H04W40/02 ,  H04W76/10

Abstract: A Packet Network for use in association with a wireless communication system employs packet distribution and call set-up methods optimized to select from a plurality of network routing devices, a single node (i.e., Rendezvous Point (VP) or.multicast core) as a function of attributes exhibited by the communication devices involved in the call or as a function of various communication system performance and/or quality of service (QOS) attributes, including but not limited to, bandwidth requirements, resource availability, network processing capacity, network response time, network traffic data, information technology and other knowledge and know-how regarding system equipment, system software, system integration, installation and/or deployment, bit error rate (BER), received signal strength indication (RSSI), quality of service (QOS) metrics, and any other measure of system performance or call quality.

Abstract translation: 与无线通信系统相关联使用的分组网络采用优化的多个分组和呼叫建立方法，以从多个网络路由设备，单个节点（即，集合点（VP）或多播核心）中选择） 包括但不限于带宽要求，资源可用性，网络处理能力，网络响应（QOS）等各种通信系统性能和/或服务质量（QOS）属性的功能， 时间，网络流量数据，信息技术等系统设备，系统软件，系统集成，安装和/或部署，误码率（BER），接收信号强度指示（RSSI），服务质量 QOS）度量，以及系统性能或通话质量的其他任何测量。

公开(公告)号：US20020067710A1

公开(公告)日：2002-06-06

申请号：US09728621

申请日：2000-12-01

Applicant: Motorola, Inc.

Inventor： David P. Helm ,  John W. Maher ,  Daniel J. McDonald ,  Brian R. Poe ,  Gerald Drobka

IPC: H04Q007/28

CPC classification number: H04L47/824 ,  H04L47/15 ,  H04L47/70 ,  H04L47/765 ,  H04L47/801 ,  H04L47/805 ,  H04L47/806 ,  H04L47/822 ,  H04W4/24 ,  H04W24/00 ,  H04W28/16 ,  H04W80/00

Abstract: A packet-based communication system and method of call control that allows variable numbers of calls of potentially multiple types (e.g., conventional and trunking calls) to proceed concurrently over shared links of an IP network without exceeding available bandwidth. Call counts are determined for one or more paths between endpoints, defining numbers of calls that are supportable by the one or more paths. The call counts may be apportioned between first and second types of call (e.g., between trunking and conventional calls). Upon receiving call requests that require use of one or more paths, the call requests are granted if they do not exceed the call counts associated with the one or more paths. Optionally, the call requests may be denied or busied if they exceed the call counts associated with the one or more paths. As another option, call requests of one type (e.g., trunking calls) may be granted even if there are no remaining call counts allocated for that type by borrowing call counts that are allocated for a second type (e.g., conventional calls) and/or by preempting calls of the second type.

Abstract translation: 一种基于分组的通信系统和呼叫控制方法，其允许潜在多种类型（例如，常规和中继呼叫）的可变呼叫数量在IP网络的共享链路上同时进行，而不超过可用带宽。 针对端点之间的一个或多个路径确定呼叫计数，定义可由一个或多个路径支持的呼叫数。 呼叫计数可以在第一和第二类型的呼叫之间分配（例如，在中继和常规呼叫之间）。 在接收到需要使用一个或多个路径的呼叫请求时，如果呼叫请求不超过与该一个或多个路径相关联的呼叫计数，则该呼叫请求被授权。 可选地，如果呼叫请求超过与一个或多个路径相关联的呼叫计数，则呼叫请求可能被拒绝或忙碌。 作为另一种选择，即使通过借用分配给第二类型的呼叫计数（例如，传统呼叫）和/或（例如，中继呼叫）的呼叫计数，也可以授予一种类型的呼叫请求（例如，中继呼叫） 通过抢占第二种类型的呼叫。

公开(公告)号：US20020097746A1

公开(公告)日：2002-07-25

申请号：US09728619

申请日：2000-12-01

Applicant: MOTOROLA, INC.

Inventor： Daniel J. McDonald ,  John W. Maher ,  Brian R. Poe

IPC: H04J003/22 ,  H04J003/18 ,  H04J003/16

CPC classification number: H04L47/24 ,  H04L12/1827 ,  H04L12/185 ,  H04L47/14 ,  H04L47/15 ,  H04L47/70 ,  H04L47/765 ,  H04L47/801 ,  H04L47/805 ,  H04L47/806 ,  H04L47/822 ,  H04L47/824 ,  H04W28/18 ,  H04W72/10 ,  H04W84/08

Abstract: A method of call control in a packet-based communication system having consoles, distributed among one or more console sites, that are adapted to monitor talkgroup calls. The console sites are served by console site links having a limited available bandwidth. Upon receiving a request for a talkgroup call, there is identified a number of priority consoles requesting participation in a talkgroup call. For example, the priority consoles (or console operators) may indicate that monitoring of the talkgroup call is nullcriticalnull for those consoles. Based on the location of the priority consoles, a number of priority console sites are identified for the talkgroup call. If sufficient bandwidth (e.g., call units of bandwidth) is available (or made available) to each of the priority console sites, the call is granted. Alternatively or additionally, the call may be granted to certain non-priority console sites if bandwidth is available. Bandwidth may be made available for critical talkgroups at certain sites by pre-empting non-critical talkgroups being monitored at those sites.

Abstract translation: 一种在基于分组的通信系统中的呼叫控制的方法，所述通信系统具有分配在一个或多个控制台站点中的适于监视对话组呼叫的控制台。 控制台网站由具有有限可用带宽的控制台站点链接提供。 在接收到对话组呼叫的请求时，确定了一些请求参与谈话组呼叫的优先级控制台。 例如，优先级控制台（或控制台操作员）可能表示对这些控制台的通话组呼叫的监视是“关键的”。 基于优先级控制台的位置，为通话组呼叫确定了一些优先级控制台站点。 如果足够的带宽（例如，带宽的呼叫单元）可用于（或可用）到每个优先级控制台站点，则呼叫被授予。 或者或另外，如果带宽可用，则可以将呼叫授予某些非优先级控制台站点。 带宽可以通过预先在这些站点上监控的非关键通话组来提供给某些站点上的关键通话组。

公开(公告)号：US20020114302A1

公开(公告)日：2002-08-22

申请号：US09791918

申请日：2001-02-22

Applicant: MOTOROLA, INC.

Inventor： Daniel J. McDonald ,  John W. Maher ,  David P. Helm ,  Brian R. Poe

IPC: H04Q007/24

CPC classification number: H04L1/1854 ,  H04L2001/0093 ,  H04W8/26 ,  H04W48/08 ,  H04W76/10 ,  H04W88/14

Abstract: Methods are disclosed for determining a link Op from among a plurality of host devices on a LAN, for exchanging control messages between a communication server and one or more sites having a link Op and a listening Op and for the link Op and/or listening Op to detect and recover from missing packets in a sequence of IP packets received from the server. The link Op and listening Op join a control multicast group address to receive control messages from the server. The link Op establishes a reliable message transfer session with the server. Upon the link Op detecting a missing packet, the link Op may request that the communication server resend the packet. Upon the listening Op detecting a missing packet, the listening Op determines whether the link Op will request retransmission of the missing packet. If the link Op is determined to not request retransmission of the missing packet, the listening Op requests retransmission of the missing packet or accepts the packet as missing and processes an out-of-sequence packet. If the link Op is determined to request retransmission of the missing packet, the listening Op discards the packet and relies upon the link Op to request retransmission of the missing packet.

Abstract translation: 公开了用于确定LAN上的多个主机设备中的链路Op的方法，用于交换通信服务器与具有链路Op和收听Op的一个或多个站点之间的控制消息以及用于链路Op和/或监听Op 从服务器接收的IP数据包序列中的丢失数据包中进行检测和恢复。 链接Op和侦听Op加入控制组播组地址以从服务器接收控制消息。 链接Op与服务器建立可靠的消息传送会话。 当链路Op检测到丢失的分组时，链路Op可以请求通信服务器重新发送分组。 在侦听Op检测到丢失的数据包时，侦听Op确定链路Op是否要求重传丢失的数据包。 如果确定链路Op不要求重传丢失的分组，则侦听Op请求丢失分组的重传或接收该分组丢失并处理失序分组。 如果链接Op被确定为请求重发丢失的分组，则侦听Op丢弃分组，并且依赖于链接Op来请求丢失分组的重传。

公开(公告)号：US20020067724A1

公开(公告)日：2002-06-06

申请号：US09728359

申请日：2000-12-01

Applicant: MOTOROLA, INC.

Inventor： David Helm ,  Thomas J. Senese ,  Daniel J. McDonald

IPC: H04L012/28

CPC classification number: H04L12/1863 ,  H04L45/00 ,  H04L45/16

Abstract: Methods are described that enable host devices of a multicast IP network to reliably join multicast group address(es) in talkgroup or point-to-point calls. For a talkgroup call, a sourcing host sends nullhellonull packets or payload to one or more network devices, addressed to a multicast group address. The receiving host issues a join command to the one or more network devices in an attempt to reliably join the multicast group address. If any packets are received by the receiving host within a designated time period associated with the attempt, the receiving host is reliably joined to the multicast group address. For a point-to-point call, a controller sends a pair of multicast group addresses, one designated for sourcing packets and the other designated for receiving packets, to a first and second host participating in the point-to-point call. The designated nullsourcenull and nullreceivenull multicast group address are complementary for the first and second hosts. When the first or second host is acting as a source, it sends hello packets or payload addressed to its designated nullsourcenull multicast group address. When the first or second host is acting as a receiver, it attempts to join its designated nullreceivenull multicast group address. The first or second host acting as a receiver knows that it is reliably joined to its designated nullreceivenull multicast group address if it receives any packets addressed to that address within a designated time period.

Abstract translation: 描述使多播IP网络的主机设备可靠地加入通话组或点对点呼叫中的多播组地址的方法。 对于通话组呼叫，源主机向一个或多个网络设备发送“hello”数据包或有效载荷，寻址到多播组地址。 接收主机向一个或多个网络设备发出加入命令，以试图可靠地加入组播组地址。 如果接收主机在与该尝试相关联的指定时间段内接收到任何分组，则接收主机可靠地加入到多播组地址。 对于点对点呼叫，控制器向参与点对点呼叫的第一和第二主机发送一对指定用于发送分组并且另一个被指定用于接收分组的多播组地址。 指定的“源”和“接收”组播组地址对于第一和第二主机是互补的。 当第一个或第二个主机作为一个源时，它会发送寻址到其指定的“源”组播组地址的Hello数据包或有效载荷。 当第一或第二主机充当接收器时，它尝试加入其指定的“接收”多播组地址。 作为接收者的第一或第二主机如果在指定的时间段内接收到寻址到该地址的任何数据包，则可以将其可靠地连接到其指定的“接收”多播组地址。