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    Systems and methods for non-optimized handoff
    12.
    发明授权
    Systems and methods for non-optimized handoff 有权
    非优化切换的系统和方法

    公开(公告)号：US08929334B2

    公开(公告)日：2015-01-06

    申请号：US13297196

    申请日：2011-11-15

    Applicant: Jun Wang ,  George Cherian ,  Xipeng Zhu ,  Srinivasan Balasubramanian ,  Anand Palanigounder ,  Ajith Tom Payyappilly

    Inventor： Jun Wang ,  George Cherian ,  Xipeng Zhu ,  Srinivasan Balasubramanian ,  Anand Palanigounder ,  Ajith Tom Payyappilly

    IPC: H04W4/00 ,  H04W36/00 ,  H04W36/14 ,  H04W36/18

    CPC classification number: H04W36/0033 ,  H04W36/14 ,  H04W36/18

    Abstract: Systems, methods and apparatus for non-optimized handoffs for wireless communication are provided. For example, the disclosure may be applied to enhance non-optimized handoff from a long-term evolution (LTE) network to an evolved high rate packet data (eHRPD) network. Systems, methods, and apparatus for reducing the interruption gap during handoffs from an LTE radio access network to an eHRPD network are also discussed. In one aspect, a method is provided for communicating information associated with a handoff of a wireless device from a source network to a target network. The method includes, during a period of data inactivity, attaching to a first network and creating a context therewith, the first network being a non-preferred network as compared to a second network. The method also include connecting to the second network based on the context created with the first network and while maintaining at least a partial context with the first network.

    Abstract translation: 提供了用于无线通信的非优化切换的系统，方法和装置。 例如，可以应用本公开来增强从长期演进（LTE）网络到演进的高速率分组数据（eHRPD）网络的非优化切换。 还讨论了用于减少从LTE无线电接入网到eHRPD网络的切换期间的中断间隙的系统，方法和装置。 在一个方面，提供了一种用于将与无线设备的切换相关联的信息从源网络传送到目标网络的方法。 该方法包括在数据不活动期间附接到第一网络并与其创建上下文，与第二网络相比，第一网络是非优选网络。 该方法还包括基于利用第一网络创建的上下文连接到第二网络，并且同时至少保持与第一网络的部分上下文。

    REDUCING NETWORK-INITIATED QOS INTERRUPTION TIME WHEN RADIO AND CORE NETWORKS ARE OUT OF SYNCHRONIZATION DUE TO DIFFERENT UNDERLYING TECHNOLOGIES
    13.
    发明申请
    REDUCING NETWORK-INITIATED QOS INTERRUPTION TIME WHEN RADIO AND CORE NETWORKS ARE OUT OF SYNCHRONIZATION DUE TO DIFFERENT UNDERLYING TECHNOLOGIES 有权
    当不同的核心网络由于不同的技术而不同步时，减少网络启动的QOS中断时间

    公开(公告)号：US20130083771A1

    公开(公告)日：2013-04-04

    申请号：US13249125

    申请日：2011-09-29

    Applicant: Suli Zhao ,  Ajith Tom Payyappilly ,  Srinivasan Balasubramanian

    Inventor： Suli Zhao ,  Ajith Tom Payyappilly ,  Srinivasan Balasubramanian

    IPC: H04W28/24 ,  H04W36/00

    CPC classification number: H04W36/14 ,  H04W36/005

    Abstract: A method enables a user equipment (UE) intervention to reduce a network-initiated Quality of Service (QoS) interruption time or a disruption of the network-initiated QoS, while avoiding application intervention. The method includes communicating with a source radio access network (RAN) in accordance with a network-initiated quality of service (QoS) profile. The method also includes transferring to a target RAN. The method further includes triggering, by a user equipment (UE), a QoS setup to reestablish the QoS profile.

    Abstract translation: 一种方法使得用户设备（UE）干预能够减少网络发起的服务质量（QoS）中断时间或中断网络发起的QoS，同时避免应用干预。 该方法包括根据网络发起的服务质量（QoS）简档与源无线电接入网络（RAN）进行通信。 该方法还包括传送到目标RAN。 该方法还包括由用户设备（UE）触发重新建立QoS简档的QoS设置。

    METHOD AND APPARATUS FOR EPC CONTEXT MAINTENANCE OPTIMIZATION
    14.
    发明申请
    METHOD AND APPARATUS FOR EPC CONTEXT MAINTENANCE OPTIMIZATION 审中-公开
    用于EPC内容维护优化的方法和装置

    公开(公告)号：US20120320827A1

    公开(公告)日：2012-12-20

    申请号：US13460691

    申请日：2012-04-30

    Applicant: Suli Zhao ,  Ajith Tom Payyappilly ,  Srinivasan Balasubramanian

    Inventor： Suli Zhao ,  Ajith Tom Payyappilly ,  Srinivasan Balasubramanian

    IPC: H04W4/00

    CPC classification number: H04W76/20 ,  H04W36/0011

    Abstract: Internet protocol (IP) continuity is fundamentally not possible when a user equipment (UE) moves from an evolved packet core (EPC) radio access technology (RAT) to a non-EPC RAT. However, there are instances when it is beneficial to not completely release an EPC IP context, such as when the UE moves to the non-EPC RAT for only a short period of time. The UE may retain an EPC IP context in a suspended state while the UE is in the non-EPC RAT, and revive the context when the UE returns to the EPC RAT. Accordingly, a method, an apparatus, and a computer program product for maintaining an EPC context at a UE are provided. The apparatus suspends and retains the EPC context when moving from an EPC capable network to a non-EPC capable network, and resumes the suspended EPC context upon returning to the EPC capable network.

    Abstract translation: 当用户设备（UE）从演进分组核心（EPC）无线电接入技术（RAT）移动到非EPC RAT时，因特网协议（IP）连续性基本上是不可能的。 然而，有时不能完全释放EPC IP上下文是有益的，例如当UE仅在短时间内移动到非EPC RAT时。 当UE处于非EPC RAT时，UE可以保持处于暂停状态的EPC IP上下文，并且当UE返回到EPC RAT时恢复上下文。 因此，提供了一种用于在UE处维护EPC上下文的方法，装置和计算机程序产品。 当从EPC能力网络移动到不支持EPC的网络时，该装置暂停并保留EPC上下文，并且在返回到EPC能力网络时恢复暂停的EPC上下文。

    METHODS AND APPARATUS FOR ENABLING FALLBACK TO A SECOND DATA SERVICE BASED ON THE PRESENCE OF FALLBACK CONDITIONS ASSOCIATED WITH ESTABLISHMENT OF A DATA CONTEXT WITH A FIRST DATA SERVICE
    15.
    发明申请
    METHODS AND APPARATUS FOR ENABLING FALLBACK TO A SECOND DATA SERVICE BASED ON THE PRESENCE OF FALLBACK CONDITIONS ASSOCIATED WITH ESTABLISHMENT OF A DATA CONTEXT WITH A FIRST DATA SERVICE 有权
    基于存在与建立与第一数据服务的数据语境相关的失败条件的第二数据服务的方法和装置

    公开(公告)号：US20120314562A1

    公开(公告)日：2012-12-13

    申请号：US13488298

    申请日：2012-06-04

    Applicant: Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly

    Inventor： Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly

    IPC: G06F11/00

    CPC classification number: H04W76/02 ,  H04W24/08 ,  H04W76/10 ,  H04W88/06

    Abstract: Aspects disclosed herein relate to enabling fallback to a second data service based on whether one or more fallback conditions are present before or during establishing a data context with a first data service. In one example, a UE may be configured to determine whether one or more fallback conditions are present before or during establishing a data session with a first data service. The UE may be further configured to prohibit further attempts to establish a data context to access the first data service based on the determination of the presence of at least one of the one or more fallback conditions. Some aspects disclosed herein relate to enabling fallback to a HRPD data service based on whether one or more fallback conditions are present before or during establishing a data context with an eHRPD data service.

    Abstract translation: 本文公开的方面涉及基于在与第一数据服务建立数据上下文之间或期间是否存在一个或多个回退条件来使得能够回退到第二数据服务。 在一个示例中，UE可以被配置为在建立与第一数据服务的数据会话之前或期间确定是否存在一个或多个回退条件。 UE可以被进一步配置成基于确定一个或多个回退条件中的至少一个的进一步被配置为禁止进一步尝试建立数据上下文以访问第一数据服务。 本文公开的一些方面涉及基于在用eHRPD数据服务建立数据上下文之前或期间是否存在一个或多个回退条件来允许HRPD数据服务的回退。

    PREVENTING LOSS OF IP CONTINUITY WHEN TRANSITIONING BETWEEN DIFFERENT NETWORKS
    16.
    发明申请
    PREVENTING LOSS OF IP CONTINUITY WHEN TRANSITIONING BETWEEN DIFFERENT NETWORKS 有权
    防止不同网络之间的IP连续性丢失

    公开(公告)号：US20120155430A1

    公开(公告)日：2012-06-21

    申请号：US13323508

    申请日：2011-12-12

    Applicant: Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

    Inventor： Ajith Tom Payyappilly ,  Shrawan K. Khatri ,  Suli Zhao

    IPC: H04W36/00

    CPC classification number: H04W36/0033 ,  H04W76/38

    Abstract: 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.

    Abstract translation: 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。

    Methods and apparatus for handling failure and retry mechanisms during eHRPD pre-registration
    17.
    发明授权
    Methods and apparatus for handling failure and retry mechanisms during eHRPD pre-registration 有权
    在eHRPD预注册期间处理故障和重试机制的方法和装置

    公开(公告)号：US09451505B2

    公开(公告)日：2016-09-20

    申请号：US13523838

    申请日：2012-06-14

    Applicant: Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly ,  Vaibhav Kumar ,  Shian-De Ju

    Inventor： Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly ,  Vaibhav Kumar ,  Shian-De Ju

    IPC: H04W36/00 ,  H04W88/06 ,  H04W76/02

    CPC classification number: H04W36/0016 ,  H04W76/19 ,  H04W88/06

    Abstract: Aspects disclosed herein relate to effectively handling failure and retry mechanisms during pre-registration for an eHRPD optimized handover. In one example, a UE may be equipped to detect one or more instances of failure during a pre-registration procedure as part of an optimized handover process. The UE may further be equipped to perform one or more pre-registration retry processes based on the detected one or more instances of failure. In one aspect, the one or more instances of failure may include any combination of a permanent LTE connection failure, a temporary LTE connection failure, a session negotiation failure, a virtual connection failure when bringing up a data call, a link control protocol (LCP) failure, etc.

    Abstract translation: 本文公开的方面涉及在eHRPD优化切换的预注册期间有效地处理故障和重试机制。 在一个示例中，UE可以被配备为在预注册过程期间检测一个或多个故障实例，作为优化的切换过程的一部分。 UE还可以被配备为基于检测到的一个或多个故障实例来执行一个或多个预注册重试过程。 在一个方面，一个或多个故障实例可以包括永久性LTE连接故障，临时LTE连接故障，会话协商失败，提起数据呼叫时的虚拟连接故障，链路控制协议（LCP ）失败等

    Methods and apparatus for enabling fallback to a second data service based on the presence of fallback conditions associated with establishment of a data context with a first data service
    18.
    发明授权
    Methods and apparatus for enabling fallback to a second data service based on the presence of fallback conditions associated with establishment of a data context with a first data service 有权
    基于与第一数据服务建立数据上下文相关联的回退条件的存在来使得能够回退到第二数据服务的方法和装置

    公开(公告)号：US09185730B2

    公开(公告)日：2015-11-10

    申请号：US13488298

    申请日：2012-06-04

    Applicant: Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly

    Inventor： Suli Zhao ,  Srinivasan Balasubramanian ,  Ajith Tom Payyappilly

    IPC: H04W76/02 ,  H04W88/06 ,  H04W24/08

    CPC classification number: H04W76/02 ,  H04W24/08 ,  H04W76/10 ,  H04W88/06

    Abstract: Aspects disclosed herein relate to enabling fallback to a second data service based on whether one or more fallback conditions are present before or during establishing a data context with a first data service. In one example, a UE may be configured to determine whether one or more fallback conditions are present before or during establishing a data session with a first data service. The UE may be further configured to prohibit further attempts to establish a data context to access the first data service based on the determination of the presence of at least one of the one or more fallback conditions. Some aspects disclosed herein relate to enabling fallback to a HRPD data service based on whether one or more fallback conditions are present before or during establishing a data context with an eHRPD data service.

    Abstract translation: 本文公开的方面涉及基于在与第一数据服务建立数据上下文之间或期间是否存在一个或多个回退条件来使得能够回退到第二数据服务。 在一个示例中，UE可以被配置为在建立与第一数据服务的数据会话之前或期间确定是否存在一个或多个回退条件。 UE可以被进一步配置成基于确定一个或多个回退条件中的至少一个的进一步被配置为禁止进一步尝试建立数据上下文以访问第一数据服务。 本文公开的一些方面涉及基于在用eHRPD数据服务建立数据上下文之前或期间是否存在一个或多个回退条件来允许HRPD数据服务的回退。

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