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21.发明授权Employing simulated acknowledgment signals for efficient handoffs in cellular packet networks 失效在蜂窝分组网络中采用模拟确认信号实现高效切换公开(公告)号：US07701905B2
公开(公告)日：2010-04-20
申请号：US11682766
申请日：2007-03-06
IPC分类号： H04Q7/00
摘要： An improved arrangement is described for maintaining throughput of date packets over a cellular packet network from an Internet server to an end user machine during handoff of a mobile subscriber unit from a first base station to a second base station. The end user machine conventionally generates, in response to successive bytes from the server, acknowledgment signals including here applicable a “zero” acknowledgment signal that advertises a closed receive window at the end user machine and that is effective to pause transmission of data from the server. In response to a handoff start signal from the subscriber unit, a gateway unit associated with the first base station sends to the server a simulated zero acknowledgment signal to pause such transmission. Upon completion of handoff, an actual non-zero acknowledgment signal stored at the gateway unit at the start of handoff is applied to the server to resume transmission from the server to the end user machine.
摘要翻译： 描述了一种改进的布置，用于在将移动用户单元从第一基站切换到第二基站期间，将蜂窝分组网络上的日期分组的吞吐量从互联网服务器维持到最终用户机器。 最终用户机器通常响应于来自服务器的连续字节生成包括这里适用的确认信号，在终端用户机器上通告封闭的接收窗口的“零”确认信号，并且有效地暂停从服务器发送数据 。 响应于来自用户单元的切换启动信号，与第一基站相关联的网关单元向服务器发送模拟的零确认信号以暂停这种传输。 在切换完成时，在切换开始时存储在网关单元处的实际非零确认信号被应用于服务器以恢复从服务器到最终用户机器的传输。
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公开(公告)号：US07672241B2
公开(公告)日：2010-03-02
申请号：US11711424
申请日：2007-02-27
申请人： Lawrence R. Foore , Kevin L. Farley
发明人： Lawrence R. Foore , Kevin L. Farley
摘要： In a TCP/IP network, congestion control techniques such as slow start and congestion avoidance are employed. Such networks include wired and wireless links. However, normal operation of the wireless links exhibit different latencies than those exhibited over the wired link. The protocols employed in the wired network do not lend themselves well to efficient communication over wireless connections, and can cause slow start to be triggered. Determining when a sender will timeout due to non-receipt of an ACK, and intervening with a suppression message having an advertised window of zero to pause the user, are employed to prevent congestion control mechanisms such as slow start and congestion avoidance from activation.
摘要翻译： 在TCP / IP网络中，采用诸如缓慢启动和拥塞避免等拥塞控制技术。 这样的网络包括有线和无线链路。 然而，无线链路的正常操作显示出不同于通过有线链路展现的延迟。 有线网络中使用的协议不利于通过无线连接的有效通信，并且可能导致启动缓慢的启动。 确定由于未接收到ACK而发送者将超时，并且介入具有通告窗口为零的抑制消息以暂停用户，以防止拥塞控制机制，例如启动缓慢启动和拥塞避免。
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公开(公告)号：US07289469B2
公开(公告)日：2007-10-30
申请号：US11053092
申请日：2005-02-07
IPC分类号： H04Q7/00
CPC分类号： H04W72/042 , H04B7/2628 , H04W8/26 , H04W68/00 , H04W72/0446 , H04W72/12 , H04W76/10
摘要： A technique for distributing channel allocation information in a demand access communication system. In a preferred embodiment, for use with Code Division Multiple Access (CDMA) type communication, multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a central controller, such as located at a base station in the case of operating a forward link, determines a schedule of assignment of traffic channels to active terminals for each epoch. For each terminal designated as active during the epoch, an active terminal unit identifier is assigned. For each terminal designated as active during the epoch, the base station assigns a list of active channels for such terminal unit. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel. The channel set up message indicates the terminal unit identifiers and the lists of active channels for epochs of the associated traffic channel(s) that are to follow. At the remote terminal unit, upon receiving a paging channel message, an active terminal identifier is determined from each paging channel message and compared to a previously assigned terminal identifier. On a predetermined subsequent epoch, the indicated active traffic channel, as indicated from the list of active traffic channels indicated by a received paging channel message, are then processed.
摘要翻译： 一种在需求存取通信系统中分配信道分配信息的技术。 在优选实施例中，为了与码分多址（CDMA）型通信一起使用，使用具有定义的码重复周期或码周期的多个接入码。 对于每个这样的历元持续时间，在操作前向链路的情况下，诸如位于基站的中央控制器确定将业务信道分配给每个历元的活动终端的时间表。 对于在时期期间指定为活动的每个终端，分配活动终端单元标识符。 对于在时期期间被指定为活动的每个终端，基站为这样的终端单元分配活动信道列表。 在每个时期的开始之前，在诸如寻呼信道的前向链路信道之一上发送信道建立消息。 信道建立消息指示终端单元标识符和关联的业务信道的时期的活动信道的列表。 在远程终端单元，在接收到寻呼信道消息时，从每个寻呼信道消息确定活动终端标识符，并将其与先前分配的终端标识符进行比较。 在预定的后续时期，从处理由接收到的寻呼信道消息指示的活动业务信道的列表中指示的所指示的活动业务信道被处理。
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公开(公告)号：US06738626B1
公开(公告)日：2004-05-18
申请号：US09626784
申请日：2000-07-27
申请人： Kevin L. Farley , Carlo Amalfitano
发明人： Kevin L. Farley , Carlo Amalfitano
IPC分类号： H04Q720
摘要： In a wireless communication network, a system and method for transferring a wireless session context allows a subscriber access unit to transfer the session context from one base station to another base station depending on a loading factor which indicates the throughput load through each of the base stations. A subscriber access unit which is located in an overlapping wireless coverage area served by both base stations can transfer the session context such that it is served by the base station having the least throughput load. Subscriber access units in overlapping coverage areas will therefore tend to transfer session context to the least burdened base station processor. In this manner, performance is improved because subscriber access units within a wireless coverage area of multiple base station processors are transferred to the base station able to provide the maximum throughput. Further, subscriber access units may be mobile, traveling between coverage areas and passing through overlapping coverage areas. A check is made to determine which of the base station processors corresponding to the coverage areas is least burdened by throughput. A loading factor indicative of resource utilization of each of the base station processors is computed. Each of the loading factors is compared, and the session context is transferred, or switched to the base station having the lowest loading factor.
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公开(公告)号：US20140219258A1
公开(公告)日：2014-08-07
申请号：US14245366
申请日：2014-04-04
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04B7/2628 , H04W8/26 , H04W68/00 , H04W72/0446 , H04W72/12 , H04W76/10
摘要： A technique for distributing channel allocation information in a demand access communication system. Multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a schedule of assignment of traffic channels to active terminals for each epoch is determined. For each terminal designated as active during the epoch, a list of active channels for such terminal unit is assigned. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel, indicating the lists of active channels for epochs of the associated traffic channel(s) that are to follow.
摘要翻译： 一种在需求存取通信系统中分配信道分配信息的技术。 使用具有定义的代码重复周期或代码时代的多个访问代码。 对于每个这样的历元持续时间，确定了用于每个历元的业务信道分配到活动终端的时间表。 对于在时期期间指定为活动的每个终端，分配用于这种终端单元的活动通道的列表。 在每个时期的开始之前，在诸如寻呼信道的前向链路信道之一上发送信道建立消息，该寻呼信道指示要跟随的相关业务信道的时期的活动信道的列表。
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公开(公告)号：US20120269177A1
公开(公告)日：2012-10-25
申请号：US13533708
申请日：2012-06-26
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04B7/2628 , H04W8/26 , H04W68/00 , H04W72/0446 , H04W72/12 , H04W76/10
摘要： A technique for distributing channel allocation information in a demand access communication system. Multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a schedule of assignment of traffic channels to active terminals for each epoch is determined. For each terminal designated as active during the epoch, a list of active channels for such terminal unit is assigned. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel, indicating the lists of active channels for epochs of the associated traffic channel(s) that are to follow.
摘要翻译： 一种在需求存取通信系统中分配信道分配信息的技术。 使用具有定义的代码重复周期或代码时代的多个访问代码。 对于每个这样的历元持续时间，确定了用于每个历元的业务信道分配到活动终端的时间表。 对于在时期期间指定为活动的每个终端，分配用于这种终端单元的活动通道的列表。 在每个时期的开始之前，在诸如寻呼信道的前向链路信道之一上发送信道建立消息，该寻呼信道指示要跟随的相关业务信道的时期的活动信道的列表。
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公开(公告)号：US07873365B2
公开(公告)日：2011-01-18
申请号：US12371339
申请日：2009-02-13
申请人： Carlo Amalfitano , Kevin L. Farley
发明人： Carlo Amalfitano , Kevin L. Farley
IPC分类号： H04Q7/20
摘要： A subscriber access unit for transferring session context in wireless communication is disclosed. The access unit contains first context establishing circuitry for establishing a first wireless session context associated with a first wireless coverage area; locating circuitry for determining whether the subscriber access unit is located concurrently in the first wireless coverage area and a second wireless coverage area; loading factor receiving circuitry for receiving a first loading factor and a second loading factor indicative of a throughput load associated with the first and second coverage areas respectively; comparison circuitry for comparing the first loading factor with the second loading factor; and second context establishing circuitry for selectively establishing a second wireless session context continuous with the first wireless session context, the second context associated with the second wireless coverage area, based on output of the circuitry comparing the first and second loading factors.
摘要翻译： 公开了一种用于在无线通信中传送会话上下文的用户接入单元。 所述接入单元包括用于建立与第一无线覆盖区域相关联的第一无线会话上下文的第一上下文建立电路; 用于确定用户接入单元是否同时位于第一无线覆盖区域和第二无线覆盖区域中的定位电路; 负载因子接收电路，用于分别接收与第一和第二覆盖区域相关联的指示吞吐量负载的第一负载因子和第二负载因子; 比较电路，用于比较第一负载系数与第二负载系数; 以及第二上下文建立电路，用于基于比较第一和第二负载因子的电路的输出，选择性地建立与第一无线会话上下文连续的第二无线会话上下文，第二上下文与第二无线覆盖区域相关联。
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公开(公告)号：US20090149190A1
公开(公告)日：2009-06-11
申请号：US12371339
申请日：2009-02-13
申请人： Kevin L. Farley , Carlo Amalfitano
发明人： Kevin L. Farley , Carlo Amalfitano
IPC分类号： H04W28/08
摘要： A subscriber access unit for transferring session context in wireless communication is disclosed. The access unit contains first context establishing circuitry for establishing a first wireless session context associated with a first wireless coverage area; locating circuitry for determining whether the subscriber access unit is located concurrently in the first wireless coverage area and a second wireless coverage area; loading factor receiving circuitry for receiving a first loading factor and a second loading factor indicative of a throughput load associated with the first and second coverage areas respectively; comparison circuitry for comparing the first loading factor with the second loading factor; and second context establishing circuitry for selectively establishing a second wireless session context continuous with the first wireless session context, the second context associated with the second wireless coverage area, based on output of the circuitry comparing the first and second loading factors.
摘要翻译： 公开了一种用于在无线通信中传送会话上下文的用户接入单元。 所述接入单元包括用于建立与第一无线覆盖区域相关联的第一无线会话上下文的第一上下文建立电路; 用于确定用户接入单元是否同时位于第一无线覆盖区域和第二无线覆盖区域中的定位电路; 负载因子接收电路，用于分别接收与第一和第二覆盖区域相关联的指示吞吐量负载的第一负载因子和第二负载因子; 比较电路，用于比较第一负载系数与第二负载系数; 以及第二上下文建立电路，用于基于比较第一和第二负载因子的电路的输出，选择性地建立与第一无线会话上下文连续的第二无线会话上下文，第二上下文与第二无线覆盖区域相关联。
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公开(公告)号：US07493122B2
公开(公告)日：2009-02-17
申请号：US10842956
申请日：2004-05-11
申请人： Kevin L. Farley , Carlo Amalfitano
发明人： Kevin L. Farley , Carlo Amalfitano
IPC分类号： H04Q7/20
摘要： A method, system, computer readable medium and subscriber access unit for transferring session context in wireless communication are disclosed. The method includes defining a first wireless coverage area provided to a subscriber access unit, establishing a first wireless session context for the subscriber access unit including a wireless connection associated with the first wireless coverage area, defining a second wireless coverage area provided to the subscriber access unit determining at the subscriber unit whether the subscriber access unit is located concurrently in the first wireless coverage area and the second wireless coverage area, determining a first loading factor and a second loading factor indicative of a throughput load associated with the first and second coverage areas respectively; comparing the first loading factor with the second loading factor, and selectively establishing a second wireless session context for the subscriber access unit which includes a wireless connection associated with the second wireless coverage area based on comparing the first and second loading factors.
摘要翻译： 公开了一种用于在无线通信中传送会话上下文的方法，系统，计算机可读介质和用户接入单元。 该方法包括定义提供给用户接入单元的第一无线覆盖区域，为包括与第一无线覆盖区域相关联的无线连接的用户接入单元建立第一无线会话上下文，定义提供给用户接入的第二无线覆盖区域 在所述用户单元处确定所述用户接入单元是否同时位于所述第一无线覆盖区域和所述第二无线覆盖区域中，确定指示与所述第一和第二覆盖区域相关联的吞吐量负载的第一负载因子和第二负载因子 分别; 将所述第一负载因子与所述第二负载因子进行比较，以及基于所述第一和第二负载因子的比较，为所述用户接入单元选择性地建立包括与所述第二无线覆盖区域相关联的无线连接的第二无线会话环境。
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公开(公告)号：US06853646B2
公开(公告)日：2005-02-08
申请号：US09847860
申请日：2001-05-02
IPC分类号： H04B7/26 , H04L12/56 , H04W8/26 , H04W68/00 , H04W72/04 , H04W72/12 , H04W74/00 , H04W76/02 , H04J3/17
CPC分类号： H04W72/042 , H04B7/2628 , H04W8/26 , H04W68/00 , H04W72/0446 , H04W72/12 , H04W76/10
摘要： A technique for distributing channel allocation information in a demand access communication system. In a preferred embodiment, for use with Code Division Multiple Access (CDMA) type communication, multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a central controller, such as located at a base station in the case of operating a forward link, determines a schedule of assignment of traffic channels to active terminals for each epoch. For each terminal designated as active during the epoch, an active terminal unit identifier is assigned. For each terminal designated as active during the epoch, the base station assigns a list of active channels for such terminal unit. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel. The channel set up message indicates the terminal unit identifiers and the lists of active channels for epochs of the associated traffic channel(s) that are to follow. At the remote terminal unit, upon receiving a paging channel message, an active terminal identifier is determined from each paging channel message and compared to a previously assigned terminal identifier. On a predetermined subsequent epoch, the indicated active traffic channel, as indicated from the list of active traffic channels indicated by a received paging channel message, are then processed.
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