公开(公告)号：US08964568B2

公开(公告)日：2015-02-24

申请号：US13277170

申请日：2011-10-19

申请人： George Cherian ,  Jun Wang ,  Ajith Tom Payyappilly ,  Suli Zhao

发明人： George Cherian ,  Jun Wang ,  Ajith Tom Payyappilly ,  Suli Zhao

IPC分类号： H04L12/26 ,  H04L29/12 ,  H04W76/04

CPC分类号： H04L61/2007 ,  H04L29/12216 ,  H04L29/12273 ,  H04L43/10 ,  H04L61/2053 ,  H04W76/25

摘要： Systems, methods and apparatus described herein include features that enable efficient management of keep-alive messages utilized to maintain IP addresses and/or PDN connections associated with idle data traffic channels. An access terminal may consolidate keep-alive messages for idle data traffic channels, reducing the number of keep-alive messages transmitted. An access terminal may select which idle data traffic channels to maintain, and may transmit a consolidated keep-alive message for associated IP addresses and/or PDN connections. Timers may be associated with PDN connections and sub-timers may be associated with IP addresses associated with a PDN connection. Keep-alive messages can be consolidated based on the timers, sub-timers and/or combination of timers and sub-timers. In a complementary method, a PDN gateway or other network node cooperates with access terminals to reduce network traffic. In another complementary method, the PDN gateway or other network node synchronizes the timers and/or sub-timers provided with an access terminal.

摘要翻译： 本文描述的系统，方法和装置包括能够有效管理用于维持与空闲数据业务信道相关联的IP地址和/或PDN连接的保持活动消息的特征。 接入终端可以整合用于空闲数据业务信道的保持活动消息，减少发送的保活消息的数量。 接入终端可以选择要维护的空闲数据业务信道，并且可以发送用于相关联的IP地址和/或PDN连接的统一的保持活动消息。 定时器可以与PDN连接相关联，并且子定时器可以与与PDN连接相关联的IP地址相关联。 可以基于定时器，子定时器和/或定时器和子定时器的组合来整合保持活动消息。 在互补方法中，PDN网关或其他网络节点与接入终端协作以减少网络流量。 在另一种补充方法中，PDN网关或其他网络节点与提供有接入终端的定时器和/或子定时器同步。

公开(公告)号：US08780965B2

公开(公告)日：2014-07-15

申请号：US13172147

申请日：2011-06-29

申请人： Suli Zhao ,  Ajith T. Payyappilly ,  Vaibhav Kumar

发明人： Suli Zhao ,  Ajith T. Payyappilly ,  Vaibhav Kumar

IPC分类号： H04B1/38 ,  H04W4/00

CPC分类号： H04W48/18 ,  H04W68/00 ,  H04W76/18 ,  H04W76/20 ,  H04W88/06

摘要： A method for inter-modem coordination is described. A first data connection to a network in a first network coverage area using a first air interface provided by a first modem is established. The method also includes detecting a second network coverage area with a second air interface provided by a second modem. A data call state of the second modem is determined by the first modem. The first data connection to the network by the first modem is terminated when the data call state of the second modem is no data call. A data call state of the first modem is determined by the second modem. A second data connection to the network using the second air interface provided by the second modem is initiated when the data call state of the first modem is no data call.

摘要翻译： 描述了调制解调器协调的方法。 建立使用由第一调制解调器提供的第一空中接口的第一网络覆盖区域中的网络的第一数据连接。 该方法还包括利用由第二调制解调器提供的第二空中接口来检测第二网络覆盖区域。 第二调制解调器的数据呼叫状态由第一调制解调器确定。 当第二调制解调器的数据呼叫状态没有数据呼叫时，由第一调制解调器到网络的第一数据连接被终止。 第一调制解调器的数据呼叫状态由第二调制解调器确定。 当第一调制解调器的数据呼叫状态不是数据呼叫时，开始使用由第二调制解调器提供的第二空中接口到网络的第二数据连接。

公开(公告)号：US20130094471A1

公开(公告)日：2013-04-18

申请号：US13275076

申请日：2011-10-17

申请人： Suli Zhao ,  Ajith T. Payyappilly ,  Shrawan K. Khatri ,  Siddharth D. Chitnis

发明人： Suli Zhao ,  Ajith T. Payyappilly ,  Shrawan K. Khatri ,  Siddharth D. Chitnis

IPC分类号： H04W36/00

CPC分类号： H04W36/0011 ,  H04W76/30

摘要： A method for maintaining IP context during an inter RAT handover of a UE between an eHRPD network and an LTE network may include delaying a transfer of an Internet Protocol context for at least one active packet data network until an IP address for an attach (PDN) Packet Data Network has been assigned and in the case where the Internet Protocol address for the Attach Packet Data Network is not assigned, initiating a detach operation from the LTE network without the user equipment losing the Internet Protocol context of the at least one active Packet Data Network.

摘要翻译： 在UE在eHRPD网络和LTE网络之间的RAT间切换期间维护IP上下文的方法可以包括延迟用于至少一个活动分组数据网络的因特网协议上下文的传输，直到用于附着（PDN）的IP地址为止， 已经分配了分组数据网络，并且在未分配用于附接分组数据网络的因特网协议地址的情况下，从LTE网络发起分离操作，而用户设备丢失了至少一个活动分组数据的因特网协议上下文 网络。

公开(公告)号：US10911905B2

公开(公告)日：2021-02-02

申请号：US16345602

申请日：2016-11-11

申请人： QUALCOMM INCORPORATED ,  Kuo-Chun Lee ,  Sivaramakrishna Veerepalli ,  Liangchi Hsu ,  Suli Zhao ,  Chun-Hao Hsu ,  Ralph Akram Gholmieh ,  Xipeng Zhu

发明人： Kuo-Chun Lee ,  Sivaramakrishna Veerepalli ,  Liangchi Hsu ,  Suli Zhao ,  Chun-Hao Hsu ,  Ralph Akram Gholmieh ,  Xipeng Zhu

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L12/26 ,  H04W4/06 ,  H04W4/70 ,  H04W76/28 ,  H04W4/029 ,  H04W4/80 ,  H04W76/40 ,  H04W16/26 ,  H04W60/00 ,  H04W68/00

摘要： Certain aspects of the present disclosure relate to methods and apparatus for avoiding conflicts between evolved Multimedia Broadcast Multicast Services (eMBMS) operations and paging and/or mobile originated (MO) operations in communication systems. A method for wireless communications by a user Equipment (UE) is provided. The method generally includes identifying at least one evolved Multimedia Broadcast Multicast Service (eMBMS) session available for receiving one or more eMBMS services from a base station. The method also includes taking one or more actions to reduce a conflict between receiving the one or more eMBMS services from the base station and receiving a paging message from the base station during the eMBMS session. Numerous other aspects are provided.

公开(公告)号：US08855084B2

公开(公告)日：2014-10-07

申请号：US13323508

申请日：2011-12-12

申请人： Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

发明人： Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04W76/06

CPC分类号： H04W36/0033 ,  H04W76/38

摘要： Aspects of the present disclosure provide techniques for preventing loss of IP continuity when transitioning between networks. Certain aspects provide methods that generally include initiating a first timer upon attempting to transition from a first RAT network to a second RAT network during an IP session and initiating a second timer if a channel in the second RAT network is successfully acquired. According to aspects, a device may transfer context of the IP session to the second RAT network if a session is successfully negotiated in the second network prior to expiration of the second timer and the first and second networks share a common core network for IP services.

摘要翻译： 本公开的方面提供了用于在网络之间转换时防止IP连续性损失的技术。 某些方面提供的方法通常包括在尝试在IP会话期间从第一RAT网络转换到第二RAT网络时启动第一定时器，并且如果成功获取了第二RAT网络中的信道，则启动第二定时器。 根据方面，如果在第二定时器期满之前在第二网络中成功协商会话，并且第一和第二网络共享用于IP服务的公共核心网络，则设备可以将IP会话的上下文传送到第二RAT网络。

公开(公告)号：US20120224485A1

公开(公告)日：2012-09-06

申请号：US13408964

申请日：2012-02-29

申请人： Ajith Tom Payyappilly ,  Venkata Satish Kumar Vangala ,  Shanta Pavan Namburi ,  Suli Zhao

发明人： Ajith Tom Payyappilly ,  Venkata Satish Kumar Vangala ,  Shanta Pavan Namburi ,  Suli Zhao

IPC分类号： H04W28/08

CPC分类号： H04W28/08 ,  H04L12/4633 ,  H04W88/06 ,  H04W92/02

摘要： Architecture for performing WLAN offload in a wireless device is disclosed. In an exemplary embodiment, an apparatus includes an application section configured to form IP packets from data to be transmitted, a modem section configured to apply a cellular protocol to the IP packets to form cellular protocol packets, an endpoint configured to encapsulate the cellular protocol packets to form outer IP tunnel packets, and a WLAN interface configured to transmit the outer IP tunnel packets over a WLAN communication channel. In another exemplary embodiment, an apparatus includes a WLAN interface configured to receive outer IP tunnel packets over a WLAN communication channel, an endpoint configured to extract cellular protocol packets from the outer IP tunnel packets, a modem processor configured to remove a cellular protocol from the cellular protocol packets to form IP packets, and an application processor configured to extract received data from the IP packets.

摘要翻译： 公开了一种用于在无线设备中执行WLAN卸载的架构。 在示例性实施例中，一种装置包括：应用部分，被配置为从要发送的数据形成IP分组;调制解调器部分，被配置为将蜂窝协议应用于所述IP分组以形成蜂窝协议分组;端点，被配置为封装所述蜂窝协议分组 以形成外部IP隧道分组，以及被配置为通过WLAN通信信道发送外部IP隧道分组的WLAN接口。 在另一示例性实施例中，一种装置包括：WLAN接口，被配置为通过WLAN通信信道接收外部IP隧道分组，端点，被配置为从外部IP隧道分组中提取蜂窝协议分组;调制解调器处理器，被配置为从 蜂窝协议分组以形成IP分组;以及应用处理器，被配置为从IP分组中提取接收到的数据。

公开(公告)号：US20120099586A1

公开(公告)日：2012-04-26

申请号：US13277170

申请日：2011-10-19

申请人： George Cherian ,  Jun Wang ,  Ajith Tom Payyappilly ,  Suli Zhao

发明人： George Cherian ,  Jun Wang ,  Ajith Tom Payyappilly ,  Suli Zhao

IPC分类号： H04L12/56

CPC分类号： H04L61/2007 ,  H04L29/12216 ,  H04L29/12273 ,  H04L43/10 ,  H04L61/2053 ,  H04W76/25

摘要： Systems, methods and apparatus described herein include features that enable efficient management of keep-alive messages utilized to maintain IP addresses and/or PDN connections associated with idle data traffic channels. An access terminal may consolidate keep-alive messages for idle data traffic channels, reducing the number of keep-alive messages transmitted. An access terminal may select which idle data traffic channels to maintain, and may transmit a consolidated keep-alive message for associated IP addresses and/or PDN connections. Timers may be associated with PDN connections and sub-timers may be associated with IP addresses associated with a PDN connection. Keep-alive messages can be consolidated based on the timers, sub-timers and/or combination of timers and sub-timers. In a complementary method, a PDN gateway or other network node cooperates with access terminals to reduce network traffic. In another complementary method, the PDN gateway or other network node synchronizes the timers and/or sub-timers provided with an access terminal.

摘要翻译： 本文描述的系统，方法和装置包括能够有效管理用于维持与空闲数据业务信道相关联的IP地址和/或PDN连接的保持活动消息的特征。 接入终端可以整合用于空闲数据业务信道的保持活动消息，减少发送的保活消息的数量。 接入终端可以选择要维护的空闲数据业务信道，并且可以发送用于相关联的IP地址和/或PDN连接的统一的保持活动消息。 定时器可以与PDN连接相关联，并且子定时器可以与与PDN连接相关联的IP地址相关联。 可以基于定时器，子定时器和/或定时器和子定时器的组合来整合保持活动消息。 在互补方法中，PDN网关或其他网络节点与接入终端协作以减少网络流量。 在另一种补充方法中，PDN网关或其他网络节点与提供有接入终端的定时器和/或子定时器同步。

公开(公告)号：US20120027059A1

公开(公告)日：2012-02-02

申请号：US13172147

申请日：2011-06-29

申请人： Suli Zhao ,  Ajith T. Payyappilly ,  Vaibhav Kumar

发明人： Suli Zhao ,  Ajith T. Payyappilly ,  Vaibhav Kumar

IPC分类号： H04B1/38

CPC分类号： H04W48/18 ,  H04W68/00 ,  H04W76/18 ,  H04W76/20 ,  H04W88/06

摘要： A method for inter-modem coordination is described. A first data connection to a network in a first network coverage area using a first air interface provided by a first modem is established. The method also includes detecting a second network coverage area with a second air interface provided by a second modem. A data call state of the second modem is determined by the first modem. The first data connection to the network by the first modem is terminated when the data call state of the second modem is no data call. A data call state of the first modem is determined by the second modem. A second data connection to the network using the second air interface provided by the second modem is initiated when the data call state of the first modem is no data call.

摘要翻译： 描述了调制解调器协调的方法。 建立使用由第一调制解调器提供的第一空中接口的第一网络覆盖区域中的网络的第一数据连接。 该方法还包括利用由第二调制解调器提供的第二空中接口来检测第二网络覆盖区域。 第二调制解调器的数据呼叫状态由第一调制解调器确定。 当第二调制解调器的数据呼叫状态没有数据呼叫时，由第一调制解调器到网络的第一数据连接被终止。 第一调制解调器的数据呼叫状态由第二调制解调器确定。 当第一调制解调器的数据呼叫状态不是数据呼叫时，开始使用由第二调制解调器提供的第二空中接口到网络的第二数据连接。

公开(公告)号：US20120155430A1

公开(公告)日：2012-06-21

申请号：US13323508

申请日：2011-12-12

申请人： Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

发明人： Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

IPC分类号： H04W36/00

CPC分类号： H04W36/0033 ,  H04W76/38

摘要： Aspects of the present disclosure provide techniques for preventing loss of IP continuity when transitioning between networks. Certain aspects provide methods that generally include initiating a first timer upon attempting to transition from a first RAT network to a second RAT network during an IP session and initiating a second timer if a channel in the second RAT network is successfully acquired. According to aspects, a device may transfer context of the IP session to the second RAT network if a session is successfully negotiated in the second network prior to expiration of the second timer and the first and second networks share a common core network for IP services.

摘要翻译： 本公开的方面提供了用于在网络之间转换时防止IP连续性损失的技术。 某些方面提供的方法通常包括在尝试在IP会话期间从第一RAT网络转换到第二RAT网络时启动第一定时器，并且如果成功获取了第二RAT网络中的信道，则启动第二定时器。 根据方面，如果在第二定时器期满之前在第二网络中成功协商会话，并且第一和第二网络共享用于IP服务的公共核心网络，则设备可以将IP会话的上下文传送到第二RAT网络。

公开(公告)号：US07013146B2

公开(公告)日：2006-03-14

申请号：US10481981

申请日：2001-06-27

申请人： Yan Wang ,  Suli Zhao ,  Hao Guan

发明人： Yan Wang ,  Suli Zhao ,  Hao Guan

IPC分类号： H04Q7/20

CPC分类号： H04W74/008 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0025 ,  H04W40/00 ,  H04W52/262 ,  H04W52/36 ,  H04W52/48 ,  H04W52/50 ,  H04W74/0833

摘要： The present invention provides a method to enhance the RACH message transmission of a wireless communication systems. Therefore the known RACH procedure for uplink transmission is extended by additional steps in order to allow the usage of adaptive transmission parameters for uplink transmissions, preferably the usage of adaptive modulation and coding (AMC). This is advantageous because studies in high-speed downlink packet access show the possibility to increase the data rate of a downlink shared channel. The method according to the invention introduces a new RACH message preamble and enables the base station to estimate suitable adaptive transmission parameters like an AMC setting according to the current transmission conditions which are used during the RACH message transmission.

摘要翻译： 本发明提供一种增强无线通信系统的RACH消息传输的方法。 因此，用于上行链路传输的已知的RACH过程通过附加步骤来扩展，以便允许使用用于上行链路传输的自适应传输参数，优选地使用自适应调制和编码（AMC）。 这是有利的，因为在高速下行链路分组接入中的研究表明提高下行链路共享信道的数据速率的可能性。 根据本发明的方法引入了新的RACH消息前同步码，并且使得基站能够根据在RACH消息传输期间使用的当前传输条件来估计合适的自适应传输参数，如AMC设置。