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21.发明授权Method and apparatus for handoff of a wireless packet data services connection 有权无线分组数据业务连接切换的方法和装置公开(公告)号：US07860061B2
公开(公告)日：2010-12-28
申请号：US11390611
申请日：2006-03-27
申请人： Nischal Abrol , Ramin Rezaiifar
发明人： Nischal Abrol , Ramin Rezaiifar
CPC分类号： H04W36/12
摘要： A novel method and apparatus is disclosed for performing seamless handoff of a mobile station (MS) between Radio Access Networks (RANs) that use different types of wireless interfaces. The described embodiments enable an MS to handoff between different RANs without causing routing ambiguity, and without substantial loss of network data. Upon moving from the coverage area of a first RAN using a first wireless interface to the coverage area of a second RAN using a second wireless interface, an MS determines whether routing ambiguity may result from the change of RAN and, based on the determination, triggers a re-registration of its network address. A foreign agent (FA) within a packet data serving node (PDSN) monitors network address re-registrations in order to determine whether multiple RAN-PDSN (R-P) connections are being created for the same MS. Based on this determination, the PDSN terminates redundant R-P network connections resulting from movement of the MS between different RANs.
摘要翻译： 公开了一种新颖的方法和装置，用于在使用不同类型的无线接口的无线电接入网络（RAN）之间执行移动台（MS）的无缝切换。 所描述的实施例使得MS能够在不引起路由模糊性的情况下在不同RAN之间进行切换，并且不会显着损失网络数据。 使用第二无线接口，使用第一无线接口从第一RAN的覆盖区域移动到第二RAN的覆盖区域时，MS确定是否可以由RAN的改变导致路由模糊性，并且基于该确定触发 重新注册其网络地址。 分组数据服务节点（PDSN）内的外部代理（FA）监视网络地址重新注册，以便确定是否为相同的MS创建多个RAN-PDSN（R-P）连接。 基于该确定，PDSN终止由不同RAN之间的MS的移动导致的冗余R-P网络连接。
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公开(公告)号：US07822414B2
公开(公告)日：2010-10-26
申请号：US11407571
申请日：2006-04-19
IPC分类号： H04W24/00
CPC分类号： H04W24/08 , H04M15/00 , H04M15/41 , H04M15/74 , H04M2215/0164 , H04M2215/709 , H04W24/00 , H04W24/04 , H04W24/10 , H04W88/02
摘要： Embodiments disclosed herein relate to methods and systems for reporting and compiling connection failures in wireless communication systems. In an embodiment, when an access terminal experiences a connection failure (e.g., an unintended one), the access terminal may generate a connection failure record associated with the event, and send a message containing the connection failure record to an access network it has since established the connection. The access network may send a message containing a connection failure report acknowledgement (ACK) message to the access terminal, upon reception of the connection failure report message. The network operators may use the connection failure records thus compiled to identify problematic spots in the system and improve the quality of service.
摘要翻译： 本文公开的实施例涉及用于报告和编译无线通信系统中的连接故障的方法和系统。 在一个实施例中，当接入终端遇到连接故障（例如，非预期的接入）时，接入终端可以生成与该事件相关联的连接失败记录，并将包含连接故障记录的消息发送到其已经具有的接入网络 建立连接。 在接收到连接失败报告消息时，接入网络可以向接入终端发送包含连接失败报告确认（ACK）消息的消息。 网络运营商可以使用如此编译的连接故障记录来识别系统中的问题点，并提高服务质量。
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23.发明授权公开(公告)号：US07773506B2
公开(公告)日：2010-08-10
申请号：US10961891
申请日：2004-10-07
申请人： Parag Arun Agashe , Ramin Rezaiifar
发明人： Parag Arun Agashe , Ramin Rezaiifar
IPC分类号： G08C15/00
CPC分类号： H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/2475 , H04L47/34
摘要： This disclosure provides a method and apparatus for the communication of low delay data over multiple channels having different speed and latency and requiring a different amount of time to set up. In one embodiment, the transmitter removes duplicate data packets from a queue after a second channel, such as a dedicated channel is established. In an alternate embodiment, sequence numbers are assigned to data packets, allowing the receiver to identify duplicate packets and ignore the duplicates.
摘要翻译： 本公开提供了一种用于在具有不同速度和等待时间的多个信道上通信低延迟数据并且需要不同的时间量进行建立的方法和装置。 在一个实施例中，在建立诸如专用信道的第二信道之后，发射机从队列中去除重复数据分组。 在替代实施例中，序列号被分配给数据分组，允许接收机识别重复分组并忽略重复。
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公开(公告)号：US07747283B2
公开(公告)日：2010-06-29
申请号：US11046441
申请日：2005-01-28
IPC分类号： H04M1/00
CPC分类号： H04L69/24 , H04L67/04 , H04L67/1095 , H04L67/303 , H04W8/22 , H04W8/24 , H04W48/14 , H04W76/11 , H04W76/18 , H04W76/19 , H04W76/20
摘要： Techniques for synchronization of stored service parameters are disclosed. In one aspect, a configuration identifier is transmitted from a mobile station to a base station, and compared with an identifier generated in the base station. If the identifiers match, the configuration is used for communication. In another aspect, the identifier is generated by selecting an identifier associated with a configuration from a configuration table. In yet another aspect, the identifier is generated by computing a cyclic redundancy check (CRC) of the configuration. Various other aspects are also presented. These aspects have the benefit of preventing attempted use of unsynchronized stored service parameters and associated call setup failures and subsequent renegotiation, with the net effect of reducing call setup time and more efficient use of system resources.
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公开(公告)号：US20090285159A1
公开(公告)日：2009-11-19
申请号：US12466151
申请日：2009-05-14
IPC分类号： H04W4/00
CPC分类号： H04W72/0486 , H04W72/02 , H04W72/042
摘要： Techniques for selecting a serving sector for a terminal based on server selection information in order to balance the load of sectors in a wireless communication system are described. The server selection information for each sector may be set based on the load of the sector and may be used to rank the sector for selection as a serving sector. In one design, a terminal may receive server selection information for multiple sectors. The server selection information for each sector may include an offset used to adjust a measurement made by the terminal for the sector, a priority of the sector for selection as a serving sector, a DRCLock set based on the load of the sector, etc. The terminal may determine received signal qualities of the sectors. The terminal may then select one of the sectors as a serving sector based on the server selection information and the received signal qualities of the sectors.
摘要翻译： 描述了基于服务器选择信息为终端选择服务扇区以平衡无线通信系统中的扇区负载的技术。 可以基于扇区的负载来设置每个扇区的服务器选择信息，并且可以使用该扇区对扇区进行排序以供选择作为服务扇区。 在一种设计中，终端可以接收多个扇区的服务器选择信息。 每个扇区的服务器选择信息可以包括用于调整由终端为扇区所做的测量的偏移，用于选择服务扇区的扇区的优先级，基于扇区的负载的DRCLock集合等。 终端可以确定扇区的接收信号质量。 然后，终端可以基于服务器选择信息和扇区的接收信号质量来选择扇区中的一个作为服务扇区。
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26.发明申请公开(公告)号：US20090196294A1
公开(公告)日：2009-08-06
申请号：US12114427
申请日：2008-05-02
申请人： Peter John Black , Ramin Rezaiifar
发明人： Peter John Black , Ramin Rezaiifar
IPC分类号： H04L12/56
CPC分类号： H04L1/1607 , H04L1/0001 , H04L1/1812 , H04L1/1854 , H04L1/1874 , H04L1/1887 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L25/14 , H04L47/10 , H04L2001/0096
摘要： Techniques for generating and transmitting packets on multiple links in a wireless communication system are described. In one aspect, a transmitter generates new packets for the multiple links based on the likelihood of each link being available. The transmitter determines the likelihood of each carrier being available based on whether or not there is a pending packet on that carrier and, if yes, the number of subpackets sent for the pending packet. The transmitter generates new packets such that packets for links progressively less likely to be available contain data units with progressively higher sequence numbers. The transmitter determines whether each link is available and sends a packet on each link that is available. In another aspect, the transmitter generates and sends new packets in a manner to ensure in-order transmission. In one design, the transmitter generates new packets for each possible combination of links that might be available.
摘要翻译： 描述了用于在无线通信系统中的多个链路上生成和发送分组的技术。 在一个方面，发射机基于每个链路可用的可能性为多个链路生成新分组。 发射机根据该载波上是否有待处理的分组确定每个载波的可用性，如果是，则确定为待分组发送的子分组的数量。 发射机产生新的分组，使得用于链路的分组逐渐变得不太可能包含具有逐渐更高序列号的数据单元。 发射机确定每个链路是否可用，并在可用的每个链路上发送一个数据包。 在另一方面，发射机以确保按顺序传输的方式生成并发送新分组。 在一种设计中，发射机为可能可用的链路的每个可能组合生成新的分组。
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公开(公告)号：US07499698B2
公开(公告)日：2009-03-03
申请号：US10059738
申请日：2002-01-28
IPC分类号： H04M3/00
CPC分类号： H04L69/24 , H04L67/04 , H04L67/1095 , H04L67/303 , H04W8/22 , H04W8/24 , H04W48/14 , H04W76/11 , H04W76/18 , H04W76/19 , H04W76/20
摘要： Techniques for synchronization of stored service parameters are disclosed. In one aspect, a configuration identifier is transmitted from a mobile station to a base station, and compared with an identifier generated in the base station. If the identifiers match, the configuration is used for communication. In another aspect, the identifier is generated by selecting an identifier associated with a configuration from a configuration table. In yet another aspect, the identifier is generated by computing a cyclic redundancy check (CRC) of the configuration. Various other aspects are also presented. These aspects have the benefit of preventing attempted use of unsynchronized stored service parameters and associated call setup failures and subsequent renegotiation, with the net effect of reducing call setup time and more efficient use of system resources.
摘要翻译： 公开了存储的服务参数的同步技术。 一方面，从移动台向基站发送配置标识符，并与基站中生成的标识符进行比较。 如果标识符匹配，则配置用于通信。 在另一方面，通过从配置表中选择与配置相关联的标识符来生成标识符。 在另一方面，通过计算配置的循环冗余校验（CRC）来生成标识符。 还提出了各种其他方面。 这些方面具有防止尝试使用不同步存储的服务参数和相关联的呼叫建立失败以及随后的重新协商的优点，具有减少呼叫建立时间和更有效地利用系统资源的净效果。
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28.发明授权Method and apparatus for determining coverage and switching between overlay communication systems 失效用于确定覆盖通信系统之间的覆盖和切换的方法和装置公开(公告)号：US07450943B2
公开(公告)日：2008-11-11
申请号：US10366101
申请日：2003-02-12
IPC分类号： H04Q7/20
摘要： Techniques to determine whether or not a terminal is under the coverage of a current wireless communication system (e.g., a packet data system) and to switch from the current system to another wireless communication system (e.g., a voice/data system). In one method, at least one measurement of at least one parameter for at least one base station in the current system is initially obtained. The measurement(s) may be SNR measurements. A metric is derived based on the measurement(s) and used (typically along with a metric threshold and a timer) to determine whether or not the terminal is within the coverage of the current system. A switch to another system is initiated if the terminal is deemed to be outside the coverage of the current system. The two systems provide at least one common service (e.g., packet data service).
摘要翻译： 确定终端是否处于当前无线通信系统（例如，分组数据系统）的覆盖范围内并且从当前系统切换到另一个无线通信系统（例如，语音/数据系统）的技术。 在一种方法中，首先获得当前系统中至少一个基站的至少一个参数的至少一个测量。 测量可以是SNR测量。 基于测量并使用（通常与度量阈值和定时器）来导出度量，以确定终端是否在当前系统的覆盖范围内。 如果终端被认为在当前系统的覆盖范围之外，则启动到另一个系统的切换。 两个系统提供至少一个公共服务（例如，分组数据服务）。
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公开(公告)号：US20080186920A1
公开(公告)日：2008-08-07
申请号：US12012786
申请日：2008-02-04
申请人： Ramin Rezaiifar , Peter Black
发明人： Ramin Rezaiifar , Peter Black
IPC分类号： H04Q7/00
摘要： Techniques to support handover of a terminal from a source base station to a target base station are described. In one design, a determination is made whether a change in personality is requested by the terminal. If the answer is ‘Yes’, then the personality of the terminal may be switched by sending one or more appropriate messages. The connection and RLP for the terminal may be reset due to the change in personality. A buffer of data reported by the source base station as being served to the terminal (e.g., no NAK was sent) may be saved by a BSC/PCF. The buffer of data may be sent to the target base station when handover occurs. New data may thereafter be sent to the target base station. This buffer of duplicate data may avoid both loss of data and retransmission timeout by TCP during the handover.
摘要翻译： 描述了支持终端从源基站到目标基站的切换的技术。 在一种设计中，确定终端是否请求个性的改变。 如果答案是“是”，则可以通过发送一个或多个适当的消息来切换终端的个性。 由于个性的变化，终端的连接和RLP可能被重置。 由BSC / PCF可以保存由源基站向终端提供的数据的缓冲器（例如没有发送NAK）。 当切换发生时，数据的缓冲器可以被发送到目标基站。 此后可将新数据发送到目标基站。 这种重复数据缓冲器可以避免在切换过程中TCP的数据丢失和重传超时。
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公开(公告)号：US07280562B2
公开(公告)日：2007-10-09
申请号：US10368887
申请日：2003-02-18
IPC分类号： H04J3/24
CPC分类号： H04L12/5602 , H04L63/162
摘要： Method and apparatus for variable length Physical Layer (PL) packet generation. Multiple Security Layer (SL) packets may be multiplexed into a single PL packet to increase efficiency, wherein the SL packets may have variable lengths. In one embodiment, different format SL packets for different users are combined into capsules that form the PL packet. Shorter packets are for users in poor channel conditions or requiring smaller amounts of data due to the applications and the accompanying Quality of Service (QoS) requirements. In one embodiment, a modified Preamble structure provides for Unicast or multi-user packets. Alternate embodiment provides modified Rate Sets, a mechanism for identifying ACK from a single-user packet or a multiplexed packet (delayed ACK). ON/OFF keying for ACK channel v/s bi-polar keying used in IS-856, and/or multi-valued interpretation of DRC.
摘要翻译： 用于可变长度物理层（PL）分组生成的方法和装置。 多个安全层（SL）分组可以被多路复用到单个PL分组中以提高效率，其中SL分组可以具有可变长度。 在一个实施例中，用于不同用户的不同格式的SL分组被组合成形成PL分组的胶囊。 由于应用程序和随附的服务质量（QoS）要求，较短的数据包对于信道状况较差的用户或要求较少量的数据。 在一个实施例中，经修改的前导码结构提供单播或多用户分组。 替代实施例提供修改的速率集合，用于从单用户分组或复用分组（延迟ACK）识别ACK的机制。 IS-856中使用的ACK通道v / s双极键控的ON / OFF键控和/或DRC的多值解释。
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