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    Wireless transceivers with filter arrangement for WiFi and LTE coexistence
    1.
    发明授权
    Wireless transceivers with filter arrangement for WiFi and LTE coexistence 有权
    具有WiFi和LTE共存的滤波器布置的无线收发器

    公开(公告)号：US09232564B2

    公开(公告)日：2016-01-05

    申请号：US14163571

    申请日：2014-01-24

    申请人： Broadcom Corporation

    发明人： Kamesh Medapalli ,  Erik Stauffer ,  Bertrand Hochwald ,  William Fujimoto ,  Joseph Saada ,  Richard Compton

    IPC分类号： H04W4/00 ,  H04W88/06 ,  H04B1/403 ,  H04B1/525 ,  H04B1/44

    CPC分类号： H04W88/06 ,  H04B1/406 ,  H04B1/44 ,  H04B1/525

    摘要： Embodiments provide WiFi and LTE tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and LTE transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from LTE into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between LTE and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and LTE transceivers (e.g., fixed CPE, portable router, smart phone with tethering).

    摘要翻译： 实施例提供WiFi和LTE定制的收发射频（RF）滤波技术和配置，以实现在接近操作的WiFi和LTE收发器之间的共存。 具体地，实施例提供了滤除技术来拒绝从WiFi到WiFi的发射，反之亦然。 滤波技术消除了LTE和WiFi天线之间的额外隔离（约50 dB）的需要，这超出了实际可实现的范围。 可以根据WiFi和LTE收发器（例如，固定CPE，便携式路由器，带有束缚的智能电话）的不同用例来定制实施例。

    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

    申请人： Broadcom Corporation

    发明人： Dutt KALAPATAPU ,  Kamesh Medapalli ,  Ahmad Rahmati

    IPC分类号： H04W28/02 ,  H04W48/16

    CPC分类号： H04W28/0236 ,  H04W48/00 ,  H04W48/16

    摘要： 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.

    摘要翻译： 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）。

    MULTI-RADIO COEXISTENCE SIGNALING
    3.
    发明申请
    MULTI-RADIO COEXISTENCE SIGNALING 有权
    多无线电信号信号

    公开(公告)号：US20140140381A1

    公开(公告)日：2014-05-22

    申请号：US13693871

    申请日：2012-12-04

    申请人： BROADCOM CORPORATION

    发明人： Aimin Sang ,  Kamesh Medapalli

    IPC分类号： H04B1/38

    CPC分类号： H04B1/406

    摘要： A method and apparatus relate to coexistence of multiple RF subsystems on a communication device. An apparatus may include a plurality of radio frequency (RF) subsystems configured to receive or transmit communication signals; and an interface for communication between a first RF subsystem of the plurality of RF subsystems and at least a second RF subsystem of the plurality of subsystems. The first RF subsystem can be configured to generate a timing offset for a coexistence signal, the timing offset being indicative of a difference between a time of generation of a signal and the time of an event associated with the signal. The timing offset can comprise a fixed offset generated based on at least one of a reference time from a periodic interrupt or direct access of a timer; and an offset adjustment based on a distance between the apparatus and a base station associated with the first RF subsystem.

    摘要翻译： 一种方法和装置涉及通信设备上的多个RF子系统的共存。 一种装置可以包括被配置为接收或发送通信信号的多个射频（RF）子系统; 以及用于在所述多个RF子系统中的第一RF子系统与所述多个子系统中的至少第二RF子系统之间进行通信的接口。 第一RF子系统可以被配置为为共存信号产生定时偏移，定时偏移指示信号的产生时间与与该信号相关联的事件的时间之间的差异。 定时偏移可以包括基于来自周期性中断的参考时间或定时器的直接访问中的至少一个而产生的固定偏移量; 以及基于所述设备与与所述第一RF子系统相关联的基站之间的距离的偏移调整。

    Proximity detection for mobile communication devices using geo-fencing
    4.
    发明授权
    Proximity detection for mobile communication devices using geo-fencing 有权
    使用地理围栏的移动通信设备进行接近检测

    公开(公告)号：US09414422B2

    公开(公告)日：2016-08-09

    申请号：US14150492

    申请日：2014-01-08

    申请人： Broadcom Corporation

    发明人： Farouk Belghoul ,  Dutt H. Kalapatapu ,  Kamesh Medapalli

    IPC分类号： H04W4/00 ,  H04W76/02 ,  H04W4/02

    CPC分类号： H04W76/14 ,  H04W4/021 ,  H04W4/023 ,  H04W4/80

    摘要： Systems and methods are provided for using geo-fencing techniques to assist in detecting mobile communication devices that are close enough to support direct communication. A mobile communication device can periodically report its geo-fence area to a central server. The server can determine whether to ask the communication device to report more precise geographic information (e.g., GPS information) based on whether another communication device eligible for direct communication is within the same geo-fence area.

    摘要翻译： 提供了系统和方法，用于使用地理围栏技术来帮助检测足够接近以支持直接通信的移动通信设备。 移动通信设备可以周期地将其地理围栏区域报告给中央服务器。 服务器可以基于是否有资格进行直接通信的另一个通信设备在相同的地理围栏区域内，确定是否要求通信设备报告更精确的地理信息（例如，GPS信息）。

    NETWORK DISCOVERY AND SELECTION USING UTILITY INFORMATION AND RADIO INTERWORKING
    5.
    发明申请
    NETWORK DISCOVERY AND SELECTION USING UTILITY INFORMATION AND RADIO INTERWORKING 有权
    使用实用信息和无线电互联的网络发现和选择

    公开(公告)号：US20150289185A1

    公开(公告)日：2015-10-08

    申请号：US14245761

    申请日：2014-04-04

    申请人： Broadcom Corporation

    发明人： Dutt Kalapatapu ,  Florin Baboescu ,  Kamesh Medapalli ,  Farouk Belghoul ,  Ahmad Rahmati

    IPC分类号： H04W36/22 ,  H04W48/16

    CPC分类号： H04W36/22 ,  H04W28/08 ,  H04W48/16 ,  H04W88/06

    摘要： 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 utility values and/or one or more utility sum values. The utility values and/or utility sum values can be 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 wireless local area network (WLAN), or vice-versa. The communication framework can include, for example, utility, utility sum, positional, movement, signal quality, connection duration, data rate, and/or quality of service (QoS) parameters.

    摘要翻译： 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。 卸载决定可以基于一个或多个效用值和/或一个或多个效用总和值。 效用值和/或效用总和值可以在通信框架中定义。 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）网络到无线局域网（WLAN），反之亦然。 通信框架可以包括例如效用，效用总和，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）。

    Low Latency IMS-Based Media Handoff Between a Cellular Network and a WLAN
    7.
    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

    申请人： Broadcom Corporation

    发明人： Dutt KALAPATAPU ,  Kamesh Medapalli

    IPC分类号： H04W36/00 ,  H04L29/06

    CPC分类号： H04L65/1016 ,  H04L65/1083 ,  H04W36/0011 ,  H04W36/14 ,  H04W36/18 ,  H04W60/005

    摘要： 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.

    摘要翻译： 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。

    Multi-radio coexistence
    9.
    发明授权
    Multi-radio coexistence 有权
    多无线电共存

    公开(公告)号：US09596694B2

    公开(公告)日：2017-03-14

    申请号：US14713800

    申请日：2015-05-15

    申请人： Broadcom Corporation

    发明人： Aimin Sang ,  Kamesh Medapalli

    IPC分类号： H04W72/08 ,  H04W24/08 ,  H04W72/10 ,  H04W72/12 ,  H04W72/04 ,  H04W24/02 ,  H04B1/403 ,  H04W16/14 ,  H04W88/06

    CPC分类号： H04W72/082 ,  H04B1/406 ,  H04W16/14 ,  H04W24/02 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/10 ,  H04W72/1215 ,  H04W88/06

    摘要： A method and apparatus relate to coexistence of multiple RF subsystems on a communication device. An apparatus may include a plurality of radio frequency (RF) subsystems configured to receive or transmit communication signals; and an interference table indicative of zones of interference among the multiple RF subsystems, the zones of interference being based on RF measurements. At least one of the RF subsystems comprises a coexistence module configured to communicate coexistence-related messages with of the other RF subsystems, the coexistence-related messages being based on the zones of interference.

    摘要翻译： 一种方法和装置涉及通信设备上的多个RF子系统的共存。 一种装置可以包括被配置为接收或发送通信信号的多个射频（RF）子系统; 以及表示多个RF子系统之间的干扰区的干扰表，干扰区基于RF测量。 RF子系统中的至少一个包括被配置为将共存相关消息与其他RF子系统通信的共存模块，共存相关消息基于干扰区域。

    MULTI-RADIO COEXISTENCE
    10.
    发明申请
    MULTI-RADIO COEXISTENCE 有权
    多无线电共享

    公开(公告)号：US20150341940A1

    公开(公告)日：2015-11-26

    申请号：US14713800

    申请日：2015-05-15

    申请人： Broadcom Corporation

    发明人： Aimin Sang ,  Kamesh Medapalli

    IPC分类号： H04W72/08 ,  H04W24/08 ,  H04W72/10 ,  H04B1/403

    CPC分类号： H04W72/082 ,  H04B1/406 ,  H04W16/14 ,  H04W24/02 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/10 ,  H04W72/1215 ,  H04W88/06

    摘要： A method and apparatus relate to coexistence of multiple RF subsystems on a communication device. An apparatus may include a plurality of radio frequency (RF) subsystems configured to receive or transmit communication signals; and an interference table indicative of zones of interference among the multiple RF subsystems, the zones of interference being based on RF measurements. At least one of the RF subsystems comprises a coexistence module configured to communicate coexistence-related messages with of the other RF subsystems, the coexistence-related messages being based on the zones of interference.

    摘要翻译： 一种方法和装置涉及通信设备上的多个RF子系统的共存。 一种装置可以包括被配置为接收或发送通信信号的多个射频（RF）子系统; 以及表示多个RF子系统之间的干扰区的干扰表，干扰区基于RF测量。 RF子系统中的至少一个包括被配置为将共存相关消息与其他RF子系统通信的共存模块，共存相关消息基于干扰区域。