公开(公告)号：US07139253B2

公开(公告)日：2006-11-21

申请号：US09898486

申请日：2001-07-05

申请人： Simon Paul Davis ,  Andrew Reeve

发明人： Simon Paul Davis ,  Andrew Reeve

IPC分类号： H04Q11/04

CPC分类号： H04L49/1576 ,  H04L49/101 ,  H04L49/254 ,  H04L49/30

摘要： A router device has a plurality of ingress line interface cards (LICs), a plurality of egress LIC's, a backplane and a controller. Transmission of signals from the ingress LICs to the controller, and from the controller to each of the ingress and egress LICs takes place across the backplane. Each ingress LIC is provided with a dedicated timeslot in which it can send information to the controller via connection. Information is sent in a slice within the dedicated timeslot and each egress LIC ignores data sent by a given ingress LIC within the timeslot assigned to said ingress LIC. A similar system is used for transmission of communications from the controller to the LICs. It is thus possible to avoid provision of additional, dedicated communications paths between the LICs (ingress and egress) and the controller.

摘要翻译： 路由器设备具有多个入口线路接口卡（LIC），多个出口LIC，背板和控制器。 信号从入口LIC传输到控制器，从控制器传输到每个入口和出口LIC都在背板上进行。 每个入口LIC设有专用时隙，通过连接可以向控制器发送信息。 信息在专用时隙内的片中发送，并且每个出口LIC忽略由分配给所述入口LIC的时隙内的给定入口LIC发送的数据。 类似的系统用于从控制器到LIC的通信传输。 因此，可以避免在LIC（入口和出口）与控制器之间提供附加的专用通信路径。

公开(公告)号：US06956859B2

公开(公告)日：2005-10-18

申请号：US09915553

申请日：2001-07-27

申请人： Simon Paul Davis

发明人： Simon Paul Davis

IPC分类号： H04L12/54 ,  H04L12/863 ,  H04L12/911 ,  H04L12/927 ,  H04L12/931 ,  H04L12/937 ,  H04L29/06 ,  H04L12/56

CPC分类号： H04L29/06 ,  H04L47/6255 ,  H04L47/70 ,  H04L47/806 ,  H04L47/822 ,  H04L49/201 ,  H04L49/254

摘要： Described herein is a method for making bandwidth allocation for data to be sent from a plurality of ingress forwarders or LICs (310, 312, 314, 316) egress forwarders or LICs (320, 322, 324, 326) across a routing device (330). The data may be unicast and/or multicast. The bandwidth allocation is calculated in accordance with ingress forwarder multicast queue occupancy for each ingress forwarder (312, 314, 316), the number of multicast cells received by egress forwarders (322, 324, 326) from the ingress forwarders in the last bandwidth allocation period, and the bandwidth allocated to non-real time multicast flows from ingress forwarders (310, 312, 314, 316) to egress forwarders (320, 322, 324, 326).

摘要翻译： 这里描述了一种用于对从多个入口转发器或LIC（310,312,314,316）通过路由设备（330）的出口转发器或LIC（320,322,324,326）发送的数据进行带宽分配的方法 ）。 数据可以是单播和/或多播。 带宽分配是根据每个入口转发器（312,314,316）的入口转发器组播队列占用率计算出的，由最后一个带宽分配中来自入口转发器的出口转发器（322,324,326）接收的多播小区的数量 以及从入口转发器（310,312,314,316）分配给非实时多播流的带宽到出口转发器（320,322,324,326）的带宽。

公开(公告)号：US5734650A

公开(公告)日：1998-03-31

申请号：US536952

申请日：1995-09-29

申请人： Andrew Timothy Hayter ,  Simon Paul Davis ,  Paul Parshee Momtaham

发明人： Andrew Timothy Hayter ,  Simon Paul Davis ,  Paul Parshee Momtaham

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04L12/54

CPC分类号： H04L49/3081 ,  H04L12/5602 ,  H04L49/503 ,  H04L2012/5636 ,  H04L2012/5649 ,  H04L2012/5651 ,  H04L2012/5672 ,  H04L2012/5679 ,  H04L49/20 ,  H04L49/30

摘要： An apparatus for queuing and scheduling ATM cells across an ATM switch comprises sustainable cell rate calendar connected in series with a peak cell rate calendar wherein cells are scheduled independently in each. The sustainable cell rate calendar guarantees the maximum ATM cell delay is not exceeded. The ATM cells are not placed on the peak cell rate calendar unless the peak cell rate threshold might be exceeded. In this case the cell is scheduled on the peak cell rate calendar and it is this that determines when the cell is sent. In this way, it is possible to guarantee absolute minimum and maximum cell rates of a connection.

摘要翻译： 一种用于在ATM交换机上排队和调度ATM信元的装置包括与峰值信元速率日历串联连接的可持续信元速率日历，其中在每个小区中独立地调度信元。 可持续的小区速率日历保证不超过最大ATM信元延迟。 除非可能超过峰值信元速率阈值，否则ATM信元不会放置在峰值信元速率日历上。 在这种情况下，单元格在峰值单元速率日历上进行调度，这就决定了单元格何时发送。 以这种方式，可以保证连接的绝对最小和最大单元速率。

公开(公告)号：US5677906A

公开(公告)日：1997-10-14

申请号：US424202

申请日：1995-04-19

申请人： Andrew Timothy Hayter ,  Simon Paul Davis

发明人： Andrew Timothy Hayter ,  Simon Paul Davis

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04J3/16

CPC分类号： H04L12/5602 ,  H04L2012/563 ,  H04L2012/5632 ,  H04L2012/5635 ,  H04L2012/5651

摘要： AN ATM communication system having both dynamic bandwidth allocation capability comprising storage mechanism for DBA traffic, the storage mechanism further including dedicated storage mechanism for ABR traffic. The system being such that ABR bandwidth requests are allocated after all other DBA bandwidth allocations have been satisfied. A device for interrupting an ABR transmission, before a bandwidth allocation within which the said ABR transmission is included has been fully used, for the transmission of other higher priority DBA traffic is provided.

摘要翻译： 具有动态带宽分配能力的ATM通信系统包括用于DBA业务的存储机制，所述存储机制还包括用于ABR业务的专用存储机制。 所述系统使得在已经满足所有其他DBA带宽分配之后分配ABR带宽请求。 已经完全使用在包括所述ABR传输的带宽分配之前中断ABR传输的装置，以提供其他较高优先级的DBA业务的传输。

公开(公告)号：US5943316A

公开(公告)日：1999-08-24

申请号：US765693

申请日：1997-04-03

申请人： Simon Paul Davis

发明人： Simon Paul Davis

IPC分类号： H04B7/26 ,  H04J13/00 ,  H04J13/16 ,  H04L12/70 ,  H04Q11/04 ,  H04W28/18 ,  H04Q7/20

CPC分类号： H04W28/18 ,  H04J13/16 ,  H04Q11/0478 ,  H04L2012/5607 ,  H04L2012/5632 ,  H04L2012/5672 ,  H04W28/06 ,  H04W72/0453

摘要： A credit bandwidth allocator system for allocating portions of an available effective communication bandwidth among a plurality of radio connections in a radio system has a credit counter for counting a number of data units received by a radio connection associated therewith, one credit counter means being associated with each radio connection, and a store for data appertaining to such radio connections. A timer provides clock signals of a pre-determined duration, and a central controller, responsive to data in the store and to the clock signals, determines a temporal measure of relative performance for said radio connections dependent upon the count state of the credit counters and the pre-determined duration of the clock signals. The available effective bandwidth is allocated between the said radio connections based on such relative performance.

摘要翻译： PCT No.PCT / GB96 / 01045 Sec。 371日期1997年4月3日 102（e）日期1997年4月3日PCT提交1996年5月1日PCT公布。 公开号WO96 / 37081 日期1996年11月21日用于在无线电系统中的多个无线电连接之间分配可用有效通信带宽的部分的信用带宽分配器系统具有用于计数通过与其相关联的无线电连接接收的数量单元数量的信用计数器，一个信用 与每个无线电连接相关联的计数器装置以及与这种无线电连接有关的数据的存储。 定时器提供预定持续时间的时钟信号，响应于存储器中的数据和时钟信号的中央控制器确定取决于信用计数器的计数状态的所述无线电连接的相对性能的时间度量，以及 时钟信号的预定持续时间。 基于这种相对性能，在所述无线电连接之间分配可用的有效带宽。

公开(公告)号：US20090219871A1

公开(公告)日：2009-09-03

申请号：US12226184

申请日：2007-03-29

申请人： Simon Paul Davis ,  Kenneth Isaacs

发明人： Simon Paul Davis ,  Kenneth Isaacs

IPC分类号： H04W4/00

摘要： A mobile device in a dual carrier communication system communicates with a network via first and second carriers by receiving data in the first cell via one of the first and second carriers on one carrier frequency, whilst receiving system information and/or downlink data from a second cell via the other of the first and second carriers on another carrier frequency.

摘要翻译： 双载波通信系统中的移动设备通过第一和第二载波与网络通信，在一个载波频率上经由第一和第二载波之一接收第一小区中的数据，同时从第二载波接收系统信息和/或下行链路数据 在另一个载波频率上经由第一和第二载波中的另一个的小区。

公开(公告)号：US07123611B2

公开(公告)日：2006-10-17

申请号：US09864870

申请日：2001-05-25

申请人： Simon Paul Davis ,  Andrew Reeve

发明人： Simon Paul Davis ,  Andrew Reeve

IPC分类号： H04L12/56

CPC分类号： H04L49/254 ,  H04L49/101 ,  H04L49/201 ,  H04L49/205

摘要： In a method for cell level scheduling for handling multicast traffic in routing devices, such as cross-bar switches having, a plurality of ingress line interface cards (LICs), a plurality of egress LICs, a cross-bar and a controller, multicast and unicast data traffic passes from the ingress LICs via the cross-bar to the egress LICs. A given multicast data packet is sent from a given ingress LIC to a predetermined set of egress LICs known as the fanout of the given packet. Each ingress LIC has an associated rate of send opportunities. The method allows multicast send opportunities to be spread as evenly as possible over cell periods, by invoking a conventional unicast scheduling scheme when one or more multicast send opportunities are present. The schedule is filled out with the fanouts of multicast packets in accordance with the send priority associated with the respective ingress LICs upon which each of the respective multicast packets is queued.

摘要翻译： 在用于处理路由设备中的组播流量的小区级调度的方法中，例如具有多个入口线路接口卡（LIC）的交叉条交换机，多个出口LIC，交叉条和控制器，多播和 单播数据流量从入口LIC经由跨栏传递到出口LIC。 给定的组播数据分组从给定的入口LIC发送到称为给定分组的扇出的预定出口集合LIC。 每个入口LIC都有相关的发送机会。 该方法通过在存在一个或多个多播发送机会时调用常规单播调度方案允许多播发送机会在小区周期内尽可能均匀地分布。 根据与每个相应的多播分组排队的相应入口LIC相关联的发送优先级，多播分组的扇出填充该调度。

公开(公告)号：US10588172B2

公开(公告)日：2020-03-10

申请号：US12226184

申请日：2007-03-29

申请人： Simon Paul Davis ,  Kenneth Isaacs

发明人： Simon Paul Davis ,  Kenneth Isaacs

IPC分类号： H04W76/36 ,  H04W36/28 ,  H04W36/00

摘要： A mobile device in a dual carrier communication system communicates with a network via first and second carriers by receiving data in the first cell via one of the first and second carriers on one carrier frequency, whilst receiving system information and/or downlink data from a second cell via the other of the first and second carriers on another carrier frequency.

公开(公告)号：US20110103345A1

公开(公告)日：2011-05-05

申请号：US12929213

申请日：2011-01-07

申请人： Simon Paul Davis

发明人： Simon Paul Davis

IPC分类号： H04W36/00

CPC分类号： H04W36/12 ,  H04W36/18

摘要： A method of packet switched handover in a mobile communication system comprising a terminal, a source node and a destination node comprises negotiating protocol parameters for the destination node on behalf of a new network entity, by communicating with an old network entity whilst the terminal is still connected to the source node; and completing the packet switched handover, such that service interruption on handover is reduced.

摘要翻译： 在包括终端，源节点和目的地节点的移动通信系统中的分组交换切换的方法包括：代表新网络实体通过与旧网络实体通信来协商目的地节点的协议参数，同时终端仍然 连接到源节点; 并完成分组交换切换，使得切换时的业务中断减少。

公开(公告)号：US07046626B2

公开(公告)日：2006-05-16

申请号：US09898484

申请日：2001-07-05

申请人： Simon Paul Davis ,  Andrew Reeve

发明人： Simon Paul Davis ,  Andrew Reeve

IPC分类号： H04L12/54

CPC分类号： H04L12/56

摘要： The invention relates to a switching device (300) having a plurality of line interface cards (LICs) (310), a plurality of egress LICs (320), a cross-bar (330) and a management card (340). The switching device (300) routes fixed sized cells of data across the cross-bar (330). The cells comprise fragments of variable length data packets. Each ingress LIC (312, 314, 316) is associated with a respective schedule or timetable (362, 364, 366) governing the transmission of cells by the ingress LIC. Similarly, each egress LIC (322, 324, 326) is also associated with a respective schedule or timetable (382, 384, 386) governing the reception of cells by said egress LIC. The schedules are in the form of a table whose entries are the identities of transmission queues corresponding to a respective egress LIC identification number (for ingress LICs) and ingress LICs from which to receive (egress LICs). Each ingress and egress LIC maintains a pointer into its associated schedule. At each cell transmit time, each ingress LIC transmits a cell from the queue identified by the pointer and each egress LIC will receive the cell from the ingress LIC identified in the entry referenced by the pointer. The pointers then move to the next location. Each schedule is circular in the sense that when moving the pointer from the last entry, its next position is the first entry.

摘要翻译： 本发明涉及具有多个线路接口卡（LIC）（310），多个出口LIC（320），横杆（330）和管理卡（340）的开关装置（300）。 交换设备（300）跨越横杆（330）路由固定大小的数据单元。 这些单元包括可变长度数据分组的片段。 每个入口LIC（312,314,316）与控制由入口LIC传输小区的相应调度或时间表（362,364,366）相关联。 类似地，每个出口LIC（322,324,326）也与控制由出口LIC接收小区的相应调度或时间表（382,384,386）相关联。 表的形式为表，其条目是对应于相应出口LIC标识号（对于入口LIC）和从其接收（出口LIC）的入口LIC）的传输队列的标识。 每个入口和出口LIC保持指向其相关调度的指针。 在每个小区发送时间，每个入口LIC从由指针标识的队列中发送小区，并且每个出口LIC将从由指针引用的条目中标识的入口LIC接收小区。 指针然后移动到下一个位置。 每个时间表都是圆形的，当从最后一个条目移动指针时，它的下一个位置是第一个条目。