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    Low Latency IMS-Based Media Handoff Between a Cellular Network and a WLAN
    1.
    发明申请
    Low Latency IMS-Based Media Handoff Between a Cellular Network and a WLAN 有权
    蜂窝网络和WLAN之间的基于IMS的媒体切换的低延迟

    公开(公告)号：US20140376511A1

    公开(公告)日：2014-12-25

    申请号：US13926692

    申请日：2013-06-25

    Applicant: Broadcom Corporation

    Inventor： Dutt KALAPATAPU ,  Kamesh Medapalli

    IPC: H04W36/00 ,  H04L29/06

    CPC classification number: H04L65/1016 ,  H04L65/1083 ,  H04W36/0011 ,  H04W36/14 ,  H04W36/18 ,  H04W60/005

    Abstract: Methods for transporting a media call between an IMS server and a User Equipment (UE) and of handing over the media call between a cellular network and a WLAN are provided. In an embodiment, the media call data and signaling are split such that the data is transported over the WLAN and the signaling is transported over the cellular network. In another embodiment, handover latency is reduced by using a dual registration process that registers the UE with an IMS server using both a WLAN-based contact and a cellular network-based contact. The media call can then be carried over the WLAN and/or the cellular network and can be handed over seamlessly from one to the other within minimal signaling.

    Abstract translation: 提供了在IMS服务器和用户设备（UE）之间传送媒体呼叫以及在蜂窝网络和WLAN之间传递媒体呼叫的方法。 在一个实施例中，媒体呼叫数据和信令被分离，使得数据通过WLAN传输，信令在蜂窝网络上传输。 在另一个实施例中，通过使用使用基于WLAN的联系人和基于蜂窝网络的联系人将UE注册到IMS服务器的双重注册过程来减少切换等待时间。 然后媒体呼叫可以通过WLAN和/或蜂窝网络传送，并且可以在最小的信令中从一个无缝地切换到另一个。

    SYSTEMS AND METHODS FOR NETWORK DISCOVERY AND SELECTION USING CONTEXTUAL INFORMATION
    2.
    发明申请
    SYSTEMS AND METHODS FOR NETWORK DISCOVERY AND SELECTION USING CONTEXTUAL INFORMATION 有权
    使用上下文信息进行网络发现和选择的系统和方法

    公开(公告)号：US20140192643A1

    公开(公告)日：2014-07-10

    申请号：US14149681

    申请日：2014-01-07

    Applicant: Broadcom Corporation

    Inventor： Dutt KALAPATAPU ,  Kamesh Medapalli ,  Ahmad Rahmati

    IPC: H04W28/02 ,  H04W48/16

    CPC classification number: H04W28/0236 ,  H04W48/00 ,  H04W48/16

    Abstract: A communication device and method for offloading communications from a first communication network to a second communication network. The offloading decision can be based on one or more parameters defined in a communication framework. The communication framework can be, for example, Access Network Discovery and Selection Function (ANDSF) framework. The offloading of communication can be from a Long-term Evolution (LTE) network to a Wi-Fi network, or vice-versa. The communication framework can include, for example, positional, movement, signal quality, connection duration, a data rate, and/or quality of service (QoS) parameters.

    Abstract translation: 一种用于将通信从第一通信网络卸载到第二通信网络的通信设备和方法。 卸载决定可以基于通信框架中定义的一个或多个参数。 通信框架可以是例如接入网络发现和选择功能（ANDSF）框架。 通信的卸载可以是从长期演进（LTE）网络到Wi-Fi网络，反之亦然。 通信框架可以包括例如位置，移动，信号质量，连接持续时间，数据速率和/或服务质量（QoS）参数）。

    Wlan Offloading Using Offload Preference Indication Information
    3.
    发明申请
    Wlan Offloading Using Offload Preference Indication Information 审中-公开
    WLAN卸载使用卸载首选项指示信息

    公开(公告)号：US20150304922A1

    公开(公告)日：2015-10-22

    申请号：US14688771

    申请日：2015-04-16

    Applicant: Broadcom Corporation

    Inventor： Florin BABOESCU ,  Guillaume Jacques SEBIRE ,  Dutt KALAPATAPU ,  Hannu HIETALAHTI

    IPC: H04W36/14 ,  H04W36/22

    CPC classification number: H04W36/14 ,  H04W28/08 ,  H04W36/22 ,  H04W48/18 ,  H04W88/06

    Abstract: Systems and methods are disclosed for offloading traffic from a first network to a second network using offload preference indication (OPI) information. The OPI information can be sent to a mobile communication device using the Access Network Discovery and Selection Function (ANDSF) framework or Radio Access Network (RAN) rules. Systems and methods are disclosed for offloading traffic for users in user groups using a variety of techniques, including randomization techniques, assigned offload class techniques, and bitmap allocation techniques.

    Abstract translation: 公开了使用卸载偏好指示（OPI）信息将业务从第一网络卸载到第二网络的系统和方法。 可以使用接入网发现和选择功能（ANDSF）框架或无线接入网络（RAN）规则将OPI信息发送到移动通信设备。 公开了用于使用各种技术（包括随机化技术，分配的卸载类技术和位图分配技术）来为用户组中的用户卸载流量的系统和方法。

    Apparatus and Method to Perform LTE/WLAN Handoff by Keeping LTE Attached or in Suspended State
    5.
    发明申请
    Apparatus and Method to Perform LTE/WLAN Handoff by Keeping LTE Attached or in Suspended State 审中-公开
    通过保持LTE或暂停状态来执行LTE / WLAN切换的装置和方法

    公开(公告)号：US20150334622A1

    公开(公告)日：2015-11-19

    申请号：US14714782

    申请日：2015-05-18

    Applicant: Broadcom Corporation

    Inventor： Florin BABOESCU ,  Dutt KALAPATAPU ,  Kamesh MEDAPALLI ,  Hannu HIETALAHTI ,  Shao-Cheng WANG

    IPC: H04W36/22 ,  H04W88/06 ,  H04W36/14

    Abstract: Systems and methods are disclosed to provide offloading procedures that reduce signaling load. Specifically, embodiments of the present disclosure provide offloading techniques that enable signaling overhead caused by attachment procedures to be avoided when user equipment (UE) reconnects to a cellular network after offloading data to a Wireless Local Area Network (WLAN). According to an embodiment, at least one Public Data Network (PDN) is kept connected through the cellular network access when other PDN connections are offloaded to WLAN. According to another embodiment, a PDN connection through cellular network access is suspended, rather than detached, when data is offloaded to WLAN.

    Abstract translation: 公开了系统和方法来提供减少信令负载的卸载过程。 具体地，本公开的实施例提供了卸载技术，当在将数据卸载到无线局域网（WLAN）之后，当用户设备（UE）重新连接到蜂窝网络时，能够避免由附接过程引起的信令开销。 根据实施例，当其他PDN连接被卸载到WLAN时，至少一个公共数据网络（PDN）通过蜂窝网络接入被保持连接。 根据另一个实施例，当数据被卸载到WLAN时，暂停通过蜂窝网络接入的PDN连接而不是分离。

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