专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007124577A1 WLAN AND WWAN CONNECTION MIGRATION METHODS AND APPARATUS 审中-公开
标题翻译： WLAN和WWAN连接移动方法和设备
公开(公告)号：WO2007124577A1
公开(公告)日：2007-11-08
申请号：PCT/CA2007/000713
申请日：2007-04-27
申请人： RESEARCH IN MOTION LIMITED , MCMASTER UNIVERSITY , KEZYS, Vytautas, Robertas , TODD, Terence, D.
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D.
IPC分类号： H04L12/28 , H04L12/66 , H04L29/02 , H04M11/06 , H04Q7/38
CPC分类号： H04L12/66 , H04W36/14 , H04W36/30 , H04W76/22 , H04W84/12 , H04W92/18
摘要： Intra-enterprise wireless handset (WH) calls between WHs operating in a wireless local area network (WLAN) are established directly between the WHs via a call connection that is maintained within the LAN without being routed through the cellular network (CN). This eliminates the cost of placing and maintaining calls through the CN for intra-enterprise calls, and also enables use of capabilities that are available in the enterprise telecomm equipment. Upon detection of a trigger condition, if and when it is more likely that a complete vertical handover (VHO) may be needed, the call connection between the WHs in the LAN is replaced by one that is routed through the CN. Thereafter, a VHO may occur (if at all) upon detection of a radio handover condition.
摘要翻译：无线局域网（WLAN）之间的企业间无线手机（WH）呼叫直接通过在LAN内维护的呼叫连接在WH之间建立，而不通过蜂窝网络（CN）进行路由。这消除了通过CN拨打和维护用于企业内部呼叫的呼叫的成本，并且还能够使用企业电话设备中可用的功能。在检测到触发条件时，如果可能需要完整的垂直切换（VHO）更可能，LAN中的WH之间的呼叫连接将被通过CN路由的呼叫连接所取代。此后，当检测到无线电切换条件时，可能发生VHO（如果有的话）。

2. 发明申请

WO2007033485A3 CONFERENCING PSTN GATEWAY METHODS AND APPARATUS TO FACILITATE HETEROGENEOUS WIRELESS NETWORK HANDOVERS FOR MOBILE COMMUNICATION DEVICES 审中-公开
公开(公告)号：WO2007033485A3
公开(公告)日：2007-03-29
申请号：PCT/CA2006/001560
申请日：2006-09-22
申请人： RESEARCH IN MOTION LIMITED , MCMASTER UNIVERSITY , KEZYS, Vytautas, Robertas , TODD, Terence, D. , SMADI, Mohammed , ZHAO, Dongmei
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D. , SMADI, Mohammed , ZHAO, Dongmei
IPC分类号： H04Q7/38 , H04L12/66 , H04L12/28 , H04L29/06 , H04Q7/32
摘要： In one illustrative example, a mobile communication device operating in a wireless local area network (WLAN) of a communication network maintains an inter-enterprise voice call via its WLAN interface (e.g. 802.11/VoIP/SIP) with another communication device in the communication network. Communications of the voice call are maintained solely within the communication network and not routed through a conferencing gateway. During the voice call, a handover of the voice call from the WLAN to a wireless wide area network (WWAN) (e.g. GSM/GPRS) may or may not be required. In response to identifying a handover indication during the voice call, the mobile device causes a request message (e.g. a SIP INVITE message) to be sent over the WWAN to the conferencing gateway for establishing a first connection leg through the WWAN via its WWAN interface with a conference room of the conferencing gateway. The mobile device also causes a re-routing message (e.g. a SIP REFER message) to be sent over the WLAN to the communication device, so that a second connection leg between the communication device and the conference room of the conferencing gateway may be established. The first and the second connection legs are connected together in the conference room of the conferencing gateway for the voice call. Advantageously, inter-enterprise voice calls in the communication network need not unnecessarily and unduly burden the conferencing gateway, unless and until a handover of the voice call between the WLAN and the WWAN is required. Variations and other PSTN conferencing gateway techniques are also described.

3. 发明申请

WO2007033485A2 CONFERENCING PSTN GATEWAY METHODS AND APPARATUS TO FACILITATE HETEROGENEOUS WIRELESS NETWORK HANDOVERS FOR MOBILE COMMUNICATION DEVICES 审中-公开
标题翻译：配备PSTN网关方式和设备，为移动通信设备的异构无线网络切换提供便利
公开(公告)号：WO2007033485A2
公开(公告)日：2007-03-29
申请号：PCT/CA2006001560
申请日：2006-09-22
申请人： RESEARCH IN MOTION LTD , UNIV MCMASTER , KEZYS VYTAUTAS ROBERTAS , TODD TERENCE D , SMADI MOHAMMED , ZHAO DONGMEI
发明人： KEZYS VYTAUTAS ROBERTAS , TODD TERENCE D , SMADI MOHAMMED , ZHAO DONGMEI
IPC分类号： H04W36/14 , H04W76/04 , H04W84/12 , H04W88/06 , H04W92/02
CPC分类号： H04L12/6418 , H04L29/06027 , H04L65/1083 , H04L65/4038 , H04M7/1235 , H04W36/14 , H04W36/18 , H04W76/02 , H04W76/041 , H04W76/043 , H04W84/12 , H04W88/06 , H04W88/16 , H04W92/02
摘要： In one illustrative example, a mobile communication device operating in a wireless local area network (WLAN) of a communication network maintains an inter-enterprise voice call via its WLAN interface (e.g. 802.11/VoIP/SIP) with another communication device in the communication network. Communications of the voice call are maintained solely within the communication network and not routed through a conferencing gateway. During the voice call, a handover of the voice call from the WLAN to a wireless wide area network (WWAN) (e.g. GSM/GPRS) may or may not be required. In response to identifying a handover indication during the voice call, the mobile device causes a request message (e.g. a SIP INVITE message) to be sent over the WWAN to the conferencing gateway for establishing a first connection leg through the WWAN via its WWAN interface with a conference room of the conferencing gateway. The mobile device also causes a re-routing message (e.g. a SIP REFER message) to be sent over the WLAN to the communication device, so that a second connection leg between the communication device and the conference room of the conferencing gateway may be established. The first and the second connection legs are connected together in the conference room of the conferencing gateway for the voice call. Advantageously, inter-enterprise voice calls in the communication network need not unnecessarily and unduly burden the conferencing gateway, unless and until a handover of the voice call between the WLAN and the WWAN is required. Variations and other PSTN conferencing gateway techniques are also described.
摘要翻译：在一个说明性示例中，在通信网络的无线局域网（WLAN）中操作的移动通信设备通过其WLAN接口（例如，802.11 / VoIP / SIP）与通信网络中的另一通信设备维护企业间语音呼叫。语音呼叫的通信仅保持在通信网络内，而不通过会议网关路由。在语音呼叫期间，可以或不需要将语音呼叫从WLAN切换到无线广域网（WWAN）（例如GSM / GPRS）。响应于在语音呼叫期间识别切换指示，移动设备使得请求消息（例如，SIP INVITE消息）通过WWAN发送到会议网关，用于经由其WWAN经由其WWAN接口建立第一连接腿，会议网关的会议室。移动设备还使得重新路由消息（例如，SIP REFER消息）通过WLAN发送到通信设备，使得可以建立通信设备和会议网关的会议室之间的第二连接分支。第一和第二连接腿在会议网关的会议室中连接在一起，用于语音呼叫。有利的是，除非需要WLAN和WWAN之间的语音呼叫切换，否则通信网络中的企业间语音呼叫不需要不必要地过度地加重会议网关。还描述了变型和其他PSTN会议网关技术。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式