公开(公告)号：US20060165038A1

公开(公告)日：2006-07-27

申请号：US11390611

申请日：2006-03-27

申请人： Nischal Abrol ,  Ramin Rezaiifar

发明人： Nischal Abrol ,  Ramin Rezaiifar

IPC分类号： H04Q7/00

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.

公开(公告)号：US20060148511A1

公开(公告)日：2006-07-06

申请号：US11263892

申请日：2005-10-31

申请人： Paul Bender ,  Ramin Rezaiifar

发明人： Paul Bender ,  Ramin Rezaiifar

IPC分类号： H04M1/00

CPC分类号： H04W88/184

摘要： Techniques to forward unsolicited messages from an (IS-2000) CDMA radio network via an HDR radio network to an access terminal. A session is first established between the access terminal and the HDR radio network. During session establishment or thereafter, the access terminal indicates to the HDR radio network an interest in receiving unsolicited messages from the CDMA radio network. The access terminal typically also registers with the CDMA radio network. Thereafter, unsolicited messages can be sent from a mobile station controller (MSC) to the HDR and CDMA radio networks, or sent from the MSC to the CDMA radio network, which then forwards the messages to the HDR radio network. The HDR radio network encapsulates the unsolicited messages and sends the encapsulated messages to the access terminal. The forwarding of unsolicited messages allows the CDMA radio network to communicate with an access terminal.

摘要翻译： 将来自（IS-2000）CDMA无线电网络的未经请求的消息经由HDR无线电网络转发到接入终端的技术。 首先在接入终端和HDR无线网络之间建立会话。 在会话建立或此后，接入终端向HDR无线电网络指示从CDMA无线电网络接收未经请求的消息的兴趣。 接入终端通常还向CDMA无线电网络注册。 此后，非请求消息可以从移动台控制器（MSC）发送到HDR和CDMA无线电网络，或者从MSC发送到CDMA无线电网络，然后CDMA无线电网络将消息转发到HDR无线电网络。 HDR无线电网络封装未经请求的消息，并将封装的消息发送到接入终端。 非请求消息的转发允许CDMA无线电网络与接入终端进行通信。

公开(公告)号：US20060056637A1

公开(公告)日：2006-03-16

申请号：US11269449

申请日：2005-11-07

申请人： Ramin Rezaiifar ,  Roy Quick ,  Paul Williamson ,  Jun Wang ,  Edward Tiedemann

发明人： Ramin Rezaiifar ,  Roy Quick ,  Paul Williamson ,  Jun Wang ,  Edward Tiedemann

IPC分类号： H04K1/00

CPC分类号： H04L63/0428 ,  G06F21/606 ,  G06F2221/2113 ,  H04L1/0061 ,  H04L1/0083 ,  H04L1/18 ,  H04L9/12 ,  H04L9/3236 ,  H04L9/3247 ,  H04L63/061 ,  H04L63/08 ,  H04L63/123 ,  H04L63/126 ,  H04L63/162 ,  H04L63/164 ,  H04L2209/34 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/06 ,  H04W12/10 ,  H04W12/12

摘要： Method and apparatus for encrypting transmission traffic at separate protocol layers L1, L2, and L3 so that separate encryption elements can be assigned to separate types of transmission traffic, which allows the implementation of different levels of encryption according to service requirements. Encryption elements use variable value inputs, called crypto-syncs, along with semi-permanent encryption keys to protect from replay attacks from rogue mobile stations. Since crypto-sync values vary, a method for synchronizing crypto-syncs at the mobile station and base station is also presented.

摘要翻译： 在单独的协议层L 1，L 2和L 3上对传输业务进行加密的方法和装置，使得可以将分开的加密元素分配给分离的传输业务类型，这允许根据业务需求实现不同级别的加密。 加密元素使用可变值输入，称为加密同步，以及半永久加密密钥，以防止流氓移动台的重放攻击。 由于密码同步值变化，所以也提出了在移动台和基站同步密码同步的方法。

公开(公告)号：US06985479B2

公开(公告)日：2006-01-10

申请号：US10091069

申请日：2002-03-04

申请人： Nikolai K. N. Leung ,  Ramin Rezaiifar

发明人： Nikolai K. N. Leung ,  Ramin Rezaiifar

IPC分类号： H04L12/66

CPC分类号： H04W4/18 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/1216 ,  H04L29/12367 ,  H04L29/12377 ,  H04L29/12415 ,  H04L61/157 ,  H04L61/2514 ,  H04L61/2517 ,  H04L61/2532 ,  H04W8/26 ,  H04W60/00 ,  H04W80/04 ,  H04W88/16

摘要： Method and apparatus for data packet communications in a communication system. Packets are received at a gateway having an Internet Protocol (IP) destination address and Network Access Identifier (NAI). The gateway maps the received NAI to a local network, such as supported by a Network Address Translator (NAT). The gateway then converts the destination address to a NAT address of the local network. The gateway also adds a port number that allows the NAT to identify the target recipient. The mapping within the gateway is created and maintained as Mobile Stations send registration requests upon arrival within a local network. In one embodiment, the registration request is a Session Initiation Protocol (SIP) registration.

公开(公告)号：US20050130708A1

公开(公告)日：2005-06-16

申请号：US11046442

申请日：2005-01-28

申请人： Sai Duncan Ho ,  Edward Tiedemann ,  Jun Wang ,  Ragulan Sinnarajah ,  Ramin Rezaiifar

发明人： Sai Duncan Ho ,  Edward Tiedemann ,  Jun Wang ,  Ragulan Sinnarajah ,  Ramin Rezaiifar

IPC分类号： H04M3/00 ,  H04W8/22 ,  H04W8/24 ,  H04W48/14 ,  H04W76/02 ,  H04W76/04 ,  H04Q7/20

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.

公开(公告)号：US20050111383A1

公开(公告)日：2005-05-26

申请号：US10954846

申请日：2004-09-29

申请人： Matthew Grob ,  Rashid Attar ,  Henry Pfister ,  Klein Gilhousen ,  Ramin Rezaiifar

发明人： Matthew Grob ,  Rashid Attar ,  Henry Pfister ,  Klein Gilhousen ,  Ramin Rezaiifar

IPC分类号： H04B7/005 ,  H04L12/56 ,  H04W4/06 ,  H04W4/10 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/14 ,  H04W52/38 ,  H04W72/02 ,  H04W72/08 ,  H04W74/00 ,  H04W76/02 ,  H04W92/18 ,  H04W92/20 ,  H04L12/28

CPC分类号： H04W52/146 ,  H04W4/10 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/383 ,  H04W72/005 ,  H04W76/14 ,  H04W76/45 ,  H04W92/18

摘要： In a multiple-access network, network access terminals conduct peer-to-peer communications on reverse link channels of the network.

摘要翻译： 在多址网络中，网络接入终端在网络的反向链路信道上进行对等通信。

公开(公告)号：US08958375B2

公开(公告)日：2015-02-17

申请号：US13025925

申请日：2011-02-11

申请人： Mark Watson ,  Ramin Rezaiifar ,  Lorenzo Vicisano

发明人： Mark Watson ,  Ramin Rezaiifar ,  Lorenzo Vicisano

IPC分类号： H04W4/00 ,  H04J3/24 ,  H04J3/00 ,  H04L1/00 ,  H04W28/06

CPC分类号： H04L1/0083 ,  H04W28/06

摘要： Framing techniques for an improved radio link protocol used in a wireless communication system, such as EV-DO. In one embodiment scheduling of the generation of repair symbols encoded to be transmitted along with source data is described. In another embodiment acknowledgment messages from a receiver are used to control the trailing edge of the protection window offered by the repair symbols. In another embodiment, non-acknowledgment messages from a receiver are used to control the generation of extra repair symbols. In another embodiment, a length field is used to avoid transmission of padding bytes over the air. In yet another embodiment, a symbol auxiliary field is appended to source symbols to indicate the padding bytes needed for symbol aligning thus avoiding the transmission of padding bytes over the air.

摘要翻译： 用于诸如EV-DO的无线通信系统中使用的改进的无线电链路协议的成帧技术。 在一个实施例中，描述了编码为与源数据一起发送的修复符号的生成的调度。 在另一个实施例中，来自接收机的确认消息用于控制由修复符号提供的保护窗口的后沿。 在另一实施例中，来自接收机的非确认消息用于控制额外修复符号的生成。 在另一个实施例中，使用长度字段来避免在空中传输填充字节。 在另一个实施例中，符号辅助字段被附加到源符号以指示符号对齐所需的填充字节，从而避免空中的填充字节的传输。

公开(公告)号：US08856387B2

公开(公告)日：2014-10-07

申请号：US12427178

申请日：2009-04-21

申请人： Peerapol Tinnakornsrisuphap ,  Fatih Ulupinar ,  John W. Nasielski ,  Jun Wang ,  Parag A. Agashe ,  Rajarshi Gupta ,  Ramin Rezaiifar

发明人： Peerapol Tinnakornsrisuphap ,  Fatih Ulupinar ,  John W. Nasielski ,  Jun Wang ,  Parag A. Agashe ,  Rajarshi Gupta ,  Ramin Rezaiifar

IPC分类号： G06F15/16 ,  H04L12/28 ,  H04W48/18 ,  H04W84/04 ,  H04L29/12 ,  H04W80/04 ,  H04W8/08

CPC分类号： H04W40/02 ,  H04L12/2889 ,  H04L29/12028 ,  H04L29/12952 ,  H04L45/741 ,  H04L61/103 ,  H04L61/6077 ,  H04W8/082 ,  H04W48/18 ,  H04W80/04 ,  H04W84/045 ,  H04W88/08

摘要： Local IP access is provided in a wireless network to facilitate access to one or more local services. In some implementations, different IP interfaces are used for accessing different services (e.g., local services and operator network services). A list that maps packet destinations to IP interfaces may be employed to determine which IP interface is to be used for sending a given packet. In some implementations an access point provides a proxy function (e.g., a proxy ARP function) for an access terminal. In some implementations an access point provides an agent function (e.g., a DHCP function) for an access terminal. NAT operations may be performed at an access point to enable the access terminal to access local services. In some aspects, an access point may determine whether to send a packet from an access terminal via a protocol tunnel based on the destination of the packet.

摘要翻译： 在无线网络中提供本地IP接入以便于访问一个或多个本地服务。 在一些实现中，不同的IP接口用于访问不同的服务（例如，本地服务和运营商网络服务）。 可以使用将分组目的地映射到IP接口的列表来确定将哪个IP接口用于发送给定分组。 在一些实现中，接入点为接入终端提供代理功能（例如，代理ARP功能）。 在一些实现中，接入点为接入终端提供代理功能（例如，DHCP功能）。 可以在接入点执行NAT操作，以使得接入终端能够访问本地业务。 在一些方面，接入点可以基于分组的目的地来确定是否经由协议隧道从接入终端发送分组。

公开(公告)号：US08761713B2

公开(公告)日：2014-06-24

申请号：US12023857

申请日：2008-01-31

申请人： Ramin Rezaiifar ,  Rashid A. Attar

发明人： Ramin Rezaiifar ,  Rashid A. Attar

IPC分类号： H04M11/04

CPC分类号： H04W76/50 ,  H04W4/06 ,  H04W4/90 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/25

摘要： Methods, apparatus and media for receiving emergency broadcast information in a broadcast-multicast service of a communication system. The methods, apparatus and media include scheduling a broadcast of emergency broadcast information in designated control channel cycles for designated subscriber stations. The control channel cycles are transmitted with the designated control channel cycles including the emergency broadcast information. Subscriber stations awake according to their designated control channel cycle and receive the transmission of their designated control channel cycle on a broadcast-multicast service. The subscriber station determines if emergency broadcast information is in the control channel cycle assigned to the subscriber station and responds accordingly.

摘要翻译： 用于在通信系统的广播多播服务中接收紧急广播信息的方法，装置和媒体。 方法，装置和媒体包括在指定的用户台的指定的控制信道周期中调度紧急广播信息的广播。 通过包括紧急广播信息的指定控制信道周期来发送控制信道周期。 用户站根据其指定的控制信道周期进行唤醒，并在广播组播业务上接收其指定的控制信道周期的传输。 用户站确定紧急广播信息是否处于分配给用户站的控制信道周期中并作出相应的响应。

公开(公告)号：US08483223B2

公开(公告)日：2013-07-09

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： H04L12/26

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。